Use correct condition for subsetting

Don't fail if client closes & reopens display.

doxygen/.cvsignore

@@ -1,7 +1,9 @@
 *.tag
 array_cache
 core
+core_subset
 math
+math_subset
 miniglx
 radeon_subset
 swrast

doxygen/README

@@ -6,4 +6,5 @@ See http://www.doxygen.org/ for more info.
 Either run 'make' (Unix) or 'doxy.bat' (Windows) to run doxygen
 and generate souce code documentation.
 
-Then, load doxy/core/index.html into your web browser.
+Then, load either doxy/core/index.html or doxy/core_subset/index.html into
+your web browser.

doxygen/core.doxy

@@ -55,7 +55,7 @@ INPUT                  = ../src/
 FILE_PATTERNS          = *.c *.h
 RECURSIVE              = NO
 EXCLUDE                = ../src/glapitemp.h ../src/glapioffsets.h
-EXCLUDE_PATTERNS       = 
+EXCLUDE_PATTERNS       = subset_*
 EXAMPLE_PATH           = 
 EXAMPLE_PATTERNS       = 
 EXAMPLE_RECURSIVE      = NO
@@ -132,13 +132,13 @@ GENERATE_AUTOGEN_DEF   = NO
 # Configuration options related to the preprocessor   
 #---------------------------------------------------------------------------
 ENABLE_PREPROCESSING   = YES
-MACRO_EXPANSION        = NO
-EXPAND_ONLY_PREDEF     = NO
+MACRO_EXPANSION        = YES
+EXPAND_ONLY_PREDEF     = YES
 SEARCH_INCLUDES        = YES
 INCLUDE_PATH           = ../include/
 INCLUDE_FILE_PATTERNS  = 
-PREDEFINED             = 
-EXPAND_AS_DEFINED      = 
+PREDEFINED             = _HAVE_FULL_GL=1
+EXPAND_AS_DEFINED      = _glthread_DECLARE_STATIC_MUTEX
 SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------
 # Configuration::addtions related to external references   
@@ -148,8 +148,7 @@ TAGFILES		= tnl_dd.tag=../tnl_dd \
                          math.tag=../math \
                          swrast.tag=../swrast \
                          swrast_setup.tag=../swrast_setup \
-                         tnl.tag=../tnl \
-			 miniglx.tag=../miniglx
+                         tnl.tag=../tnl
 GENERATE_TAGFILE       = core.tag
 ALLEXTERNALS           = NO
 PERL_PATH              = 

doxygen/core_subset.doxy

@@ -0,0 +1,226 @@
+# Doxyfile 0.1
+
+#---------------------------------------------------------------------------
+# General configuration options
+#---------------------------------------------------------------------------
+PROJECT_NAME           = "Mesa Core"
+PROJECT_NUMBER         = 
+OUTPUT_DIRECTORY       = 
+OUTPUT_LANGUAGE        = English
+EXTRACT_ALL            = NO
+EXTRACT_PRIVATE        = NO
+EXTRACT_STATIC         = YES
+EXTRACT_LOCAL_CLASSES  = YES
+HIDE_UNDOC_MEMBERS     = NO
+HIDE_UNDOC_CLASSES     = NO
+BRIEF_MEMBER_DESC      = YES
+REPEAT_BRIEF           = YES
+ALWAYS_DETAILED_SEC    = NO
+INLINE_INHERITED_MEMB  = NO
+FULL_PATH_NAMES        = NO
+STRIP_FROM_PATH        = 
+INTERNAL_DOCS          = YES
+STRIP_CODE_COMMENTS    = YES
+CASE_SENSE_NAMES       = YES
+SHORT_NAMES            = NO
+HIDE_SCOPE_NAMES       = NO
+VERBATIM_HEADERS       = YES
+SHOW_INCLUDE_FILES     = YES
+JAVADOC_AUTOBRIEF      = NO
+INHERIT_DOCS           = YES
+INLINE_INFO            = YES
+SORT_MEMBER_DOCS       = NO
+DISTRIBUTE_GROUP_DOC   = NO
+TAB_SIZE               = 8
+GENERATE_TODOLIST      = YES
+GENERATE_TESTLIST      = YES
+GENERATE_BUGLIST       = YES
+ALIASES                = 
+ENABLED_SECTIONS       = subset
+MAX_INITIALIZER_LINES  = 30
+OPTIMIZE_OUTPUT_FOR_C  = NO
+SHOW_USED_FILES        = YES
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+QUIET                  = YES
+WARNINGS               = YES
+WARN_IF_UNDOCUMENTED   = NO
+WARN_FORMAT            = 
+WARN_LOGFILE           = 
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+INPUT                  = ../src/
+FILE_PATTERNS          = \
+			accum.h \
+			attrib.h \
+			blend.[ch] \
+			buffers.[ch] \
+			dd.h \
+			debug.h \
+			depth.h \
+			dlist.h \
+			context.[ch] \
+			config.h \
+			colormac.h \
+			colortab.h \
+			enable.h \
+			enums.h \
+			eval.h \
+			extensions.h \
+			feedback.[ch] \
+			fog.h \
+			get.h \
+			glheader.h \
+			glthread.h \
+			hash.[ch] \
+			hint.h \
+			histogram.h \
+			image.[ch] \
+			imports.[ch] \
+			lines.[ch] \
+			light.h \
+			matrix.[ch] \
+			macros.h \
+			mmath.h \
+			mtypes.h \
+			pixel.h \
+			points.[ch] \
+			polygon.[ch] \
+			rastpos.[ch] \
+			simple_list.h \
+			state.[ch] \
+			stencil.[ch] \
+			subset_*.c \
+			texformat.h \
+			teximage.h \
+			texstate.h \
+			texstore.h \
+			texobj.[ch] \
+			texutil_tmp.h \
+			varray.h
+RECURSIVE              = NO
+EXCLUDE                = 
+EXCLUDE_PATTERNS       = 
+EXAMPLE_PATH           = 
+EXAMPLE_PATTERNS       = 
+EXAMPLE_RECURSIVE      = NO
+IMAGE_PATH             = 
+INPUT_FILTER           = 
+FILTER_SOURCE_FILES    = NO
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+SOURCE_BROWSER         = YES
+INLINE_SOURCES         = NO
+REFERENCED_BY_RELATION = YES
+REFERENCES_RELATION    = YES
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+ALPHABETICAL_INDEX     = NO
+COLS_IN_ALPHA_INDEX    = 5
+IGNORE_PREFIX          = 
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+GENERATE_HTML          = YES
+HTML_OUTPUT            = core_subset
+HTML_HEADER            = header_subset.html
+HTML_FOOTER            = 
+HTML_STYLESHEET        = 
+HTML_ALIGN_MEMBERS     = YES
+GENERATE_HTMLHELP      = NO
+GENERATE_CHI           = NO
+BINARY_TOC             = NO
+TOC_EXPAND             = NO
+DISABLE_INDEX          = NO
+ENUM_VALUES_PER_LINE   = 4
+GENERATE_TREEVIEW      = NO
+TREEVIEW_WIDTH         = 250
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+GENERATE_LATEX         = NO
+LATEX_OUTPUT           = 
+COMPACT_LATEX          = NO
+PAPER_TYPE             = a4wide
+EXTRA_PACKAGES         = 
+LATEX_HEADER           = 
+PDF_HYPERLINKS         = NO
+USE_PDFLATEX           = NO
+LATEX_BATCHMODE        = NO
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+GENERATE_RTF           = NO
+RTF_OUTPUT             = 
+COMPACT_RTF            = NO
+RTF_HYPERLINKS         = NO
+RTF_STYLESHEET_FILE    = 
+RTF_EXTENSIONS_FILE    = 
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+GENERATE_MAN           = NO
+MAN_OUTPUT             = 
+MAN_EXTENSION          = 
+MAN_LINKS              = NO
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+GENERATE_XML           = NO
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+GENERATE_AUTOGEN_DEF   = NO
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+ENABLE_PREPROCESSING   = YES
+MACRO_EXPANSION        = NO
+EXPAND_ONLY_PREDEF     = NO
+SEARCH_INCLUDES        = YES
+INCLUDE_PATH           = ../include/
+INCLUDE_FILE_PATTERNS  = 
+PREDEFINED             = 
+EXPAND_AS_DEFINED      = 
+SKIP_FUNCTION_MACROS   = YES
+#---------------------------------------------------------------------------
+# Configuration::addtions related to external references   
+#---------------------------------------------------------------------------
+TAGFILES		= \
+			 math_subset.tag=../math_subset \
+			 miniglx.tag=../miniglx
+GENERATE_TAGFILE       = core_subset.tag
+ALLEXTERNALS           = NO
+PERL_PATH              = 
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+CLASS_DIAGRAMS         = NO
+HAVE_DOT               = NO
+CLASS_GRAPH            = YES
+COLLABORATION_GRAPH    = YES
+TEMPLATE_RELATIONS     = YES
+HIDE_UNDOC_RELATIONS   = YES
+INCLUDE_GRAPH          = YES
+INCLUDED_BY_GRAPH      = YES
+GRAPHICAL_HIERARCHY    = YES
+DOT_PATH               = 
+DOTFILE_DIRS           = 
+MAX_DOT_GRAPH_WIDTH    = 1024
+MAX_DOT_GRAPH_HEIGHT   = 1024
+GENERATE_LEGEND        = YES
+DOT_CLEANUP            = YES
+#---------------------------------------------------------------------------
+# Configuration::addtions related to the search engine   
+#---------------------------------------------------------------------------
+SEARCHENGINE           = NO
+CGI_NAME               = 
+CGI_URL                = 
+DOC_URL                = 
+DOC_ABSPATH            = 
+BIN_ABSPATH            = 
+EXT_DOC_PATHS          = 

doxygen/header.html

@@ -3,12 +3,10 @@
 </head>
 <body><center>
 <a href="../core/index.html">Mesa Core</a>&nbsp;
-<a href="../miniglx/index.html">MiniGLX</a>&nbsp;
 <a href="../array_cache/index.html">array_cache</a>&nbsp;
 <a href="../math/index.html">math</a>&nbsp;
 <a href="../swrast/index.html">swrast</a>&nbsp;
 <a href="../swrast_setup/index.html">swrast_setup</a>&nbsp;
 <a href="../tnl/index.html">tnl</a>&nbsp;
 <a href="../tnl_dd/index.html">tnl_dd</a>&nbsp;
-<a href="../radeon_subset/index.html">radeon_subset</a>&nbsp;
-</center>
+</center>

doxygen/header_subset.html

@@ -0,0 +1,9 @@
+<html><head><title>Mesa Source Code Documentation</title>
+<link href="doxygen.css" rel="stylesheet" type="text/css">
+</head>
+<body><center>
+<a href="../core_subset/index.html">Mesa Core</a>&nbsp;
+<a href="../math_subset/index.html">math</a>&nbsp;
+<a href="../miniglx/index.html">MiniGLX</a>&nbsp;
+<a href="../radeon_subset/index.html">radeon_subset</a>&nbsp;
+</center>

doxygen/makefile

@@ -1,11 +1,12 @@
-default:
+default: subset
+
+full:
 	doxygen tnl_dd.doxy
 	doxygen array_cache.doxy
 	doxygen math.doxy
 	doxygen swrast.doxy
 	doxygen swrast_setup.doxy
 	doxygen tnl.doxy
-	doxygen miniglx.doxy
 	doxygen core.doxy
 	echo "Building again, to resolve tags"
 	doxygen tnl_dd.doxy
@@ -14,11 +15,33 @@ default:
 	doxygen swrast.doxy
 	doxygen swrast_setup.doxy
 	doxygen tnl.doxy
+	doxygen core.doxy
+
+subset:
+	doxygen core_subset.doxy
+	doxygen math_subset.doxy
+	doxygen miniglx.doxy
+	echo "Building again, to resolve tags"
+	doxygen core_subset.doxy
+	doxygen math_subset.doxy
 	doxygen miniglx.doxy
 	doxygen radeon_subset.doxy
-
+	doxygen radeonfb.doxy
+	doxygen radeondrm.doxy
+	doxygen agpgart.doxy
 
 clean:
-	rm -rf array_cache core math swrast swrast_setup tnl_dd tnl miniglx radeon_subset
+	rm -rf \
+		array_cache \
+		core \
+		core_subset \
+		math \
+		math_subset \
+		swrast \
+		swrast_setup \
+		tnl_dd \
+		tnl \
+		miniglx \
+		radeon_subset
 	rm -rf *.tag
 

doxygen/math_subset.doxy

@@ -0,0 +1,177 @@
+# Doxyfile 0.1
+
+#---------------------------------------------------------------------------
+# General configuration options
+#---------------------------------------------------------------------------
+PROJECT_NAME           = "Mesa math module"
+PROJECT_NUMBER         = 
+OUTPUT_DIRECTORY       = .
+OUTPUT_LANGUAGE        = English
+EXTRACT_ALL            = NO
+EXTRACT_PRIVATE        = NO
+EXTRACT_STATIC         = YES
+EXTRACT_LOCAL_CLASSES  = YES
+HIDE_UNDOC_MEMBERS     = NO
+HIDE_UNDOC_CLASSES     = NO
+BRIEF_MEMBER_DESC      = YES
+REPEAT_BRIEF           = YES
+ALWAYS_DETAILED_SEC    = NO
+INLINE_INHERITED_MEMB  = NO
+FULL_PATH_NAMES        = NO
+STRIP_FROM_PATH        = 
+INTERNAL_DOCS          = NO
+STRIP_CODE_COMMENTS    = YES
+CASE_SENSE_NAMES       = YES
+SHORT_NAMES            = NO
+HIDE_SCOPE_NAMES       = NO
+VERBATIM_HEADERS       = YES
+SHOW_INCLUDE_FILES     = YES
+JAVADOC_AUTOBRIEF      = NO
+INHERIT_DOCS           = YES
+INLINE_INFO            = YES
+SORT_MEMBER_DOCS       = NO
+DISTRIBUTE_GROUP_DOC   = NO
+TAB_SIZE               = 8
+GENERATE_TODOLIST      = YES
+GENERATE_TESTLIST      = YES
+GENERATE_BUGLIST       = YES
+ALIASES                = 
+ENABLED_SECTIONS       = 
+MAX_INITIALIZER_LINES  = 30
+OPTIMIZE_OUTPUT_FOR_C  = YES
+SHOW_USED_FILES        = YES
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+QUIET                  = YES
+WARNINGS               = YES
+WARN_IF_UNDOCUMENTED   = YES
+WARN_FORMAT            = 
+WARN_LOGFILE           = 
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+INPUT                  = ../src/math/
+FILE_PATTERNS          = m_matrix.[ch]
+RECURSIVE              = NO
+EXCLUDE                = 
+EXCLUDE_PATTERNS       = 
+EXAMPLE_PATH           = 
+EXAMPLE_PATTERNS       = 
+EXAMPLE_RECURSIVE      = NO
+IMAGE_PATH             = 
+INPUT_FILTER           = 
+FILTER_SOURCE_FILES    = NO
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+SOURCE_BROWSER         = NO
+INLINE_SOURCES         = NO
+REFERENCED_BY_RELATION = YES
+REFERENCES_RELATION    = YES
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+ALPHABETICAL_INDEX     = NO
+COLS_IN_ALPHA_INDEX    = 5
+IGNORE_PREFIX          = 
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+GENERATE_HTML          = YES
+HTML_OUTPUT            = math_subset
+HTML_HEADER            = header_subset.html
+HTML_FOOTER            = 
+HTML_STYLESHEET        = 
+HTML_ALIGN_MEMBERS     = YES
+GENERATE_HTMLHELP      = NO
+GENERATE_CHI           = NO
+BINARY_TOC             = NO
+TOC_EXPAND             = NO
+DISABLE_INDEX          = NO
+ENUM_VALUES_PER_LINE   = 4
+GENERATE_TREEVIEW      = NO
+TREEVIEW_WIDTH         = 250
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+GENERATE_LATEX         = NO
+LATEX_OUTPUT           = 
+COMPACT_LATEX          = NO
+PAPER_TYPE             = a4wide
+EXTRA_PACKAGES         = 
+LATEX_HEADER           = 
+PDF_HYPERLINKS         = NO
+USE_PDFLATEX           = NO
+LATEX_BATCHMODE        = NO
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+GENERATE_RTF           = NO
+RTF_OUTPUT             = 
+COMPACT_RTF            = NO
+RTF_HYPERLINKS         = NO
+RTF_STYLESHEET_FILE    = 
+RTF_EXTENSIONS_FILE    = 
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+GENERATE_MAN           = NO
+MAN_OUTPUT             = 
+MAN_EXTENSION          = 
+MAN_LINKS              = NO
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+GENERATE_XML           = NO
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+GENERATE_AUTOGEN_DEF   = NO
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+ENABLE_PREPROCESSING   = YES
+MACRO_EXPANSION        = NO
+EXPAND_ONLY_PREDEF     = NO
+SEARCH_INCLUDES        = YES
+INCLUDE_PATH           = 
+INCLUDE_FILE_PATTERNS  = 
+PREDEFINED             = 
+EXPAND_AS_DEFINED      = 
+SKIP_FUNCTION_MACROS   = YES
+#---------------------------------------------------------------------------
+# Configuration::addtions related to external references   
+#---------------------------------------------------------------------------
+TAGFILES               = core_subset.tag=../core_subset
+GENERATE_TAGFILE       = math_subset.tag
+ALLEXTERNALS           = NO
+PERL_PATH              = 
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+CLASS_DIAGRAMS         = YES
+HAVE_DOT               = NO
+CLASS_GRAPH            = YES
+COLLABORATION_GRAPH    = YES
+TEMPLATE_RELATIONS     = YES
+HIDE_UNDOC_RELATIONS   = YES
+INCLUDE_GRAPH          = YES
+INCLUDED_BY_GRAPH      = YES
+GRAPHICAL_HIERARCHY    = YES
+DOT_PATH               = 
+DOTFILE_DIRS           = 
+MAX_DOT_GRAPH_WIDTH    = 1024
+MAX_DOT_GRAPH_HEIGHT   = 1024
+GENERATE_LEGEND        = YES
+DOT_CLEANUP            = YES
+#---------------------------------------------------------------------------
+# Configuration::addtions related to the search engine   
+#---------------------------------------------------------------------------
+SEARCHENGINE           = NO
+CGI_NAME               = 
+CGI_URL                = 
+DOC_URL                = 
+DOC_ABSPATH            = 
+BIN_ABSPATH            = 
+EXT_DOC_PATHS          = 

doxygen/miniglx.doxy

@@ -80,7 +80,7 @@ IGNORE_PREFIX          =
 #---------------------------------------------------------------------------
 GENERATE_HTML          = YES
 HTML_OUTPUT            = miniglx
-HTML_HEADER            = header.html
+HTML_HEADER            = header_subset.html
 HTML_FOOTER            = 
 HTML_STYLESHEET        = 
 HTML_ALIGN_MEMBERS     = YES
@@ -143,14 +143,9 @@ SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------
 # Configuration::addtions related to external references   
 #---------------------------------------------------------------------------
-TAGFILES		= core.tag=../core \
-			 tnl_dd.tag=../tnl_dd \
-			 array_cache.tag=../array_cache \
-                         math.tag=../math \
-                         swrast.tag=../swrast \
-                         swrast_setup.tag=../swrast_setup \
-                         tnl.tag=../tnl \
-                         array_cache.tag=array_cache
+TAGFILES		= \
+			 core_subset.tag=../core_subset \
+                         math_subset.tag=../math_subset
 GENERATE_TAGFILE       = miniglx.tag
 ALLEXTERNALS           = NO
 PERL_PATH              = 

doxygen/radeon_subset.doxy

@@ -103,7 +103,7 @@ IGNORE_PREFIX          =
 #---------------------------------------------------------------------------
 GENERATE_HTML          = YES
 HTML_OUTPUT            = radeon_subset
-HTML_HEADER            = header.html
+HTML_HEADER            = header_subset.html
 HTML_FOOTER            = 
 HTML_STYLESHEET        = 
 HTML_ALIGN_MEMBERS     = YES
@@ -166,15 +166,10 @@ SKIP_FUNCTION_MACROS   = YES
 #---------------------------------------------------------------------------
 # Configuration::addtions related to external references   
 #---------------------------------------------------------------------------
-TAGFILES		= core.tag=../core \
-			 tnl_dd.tag=../tnl_dd \
-			 array_cache.tag=../array_cache \
-                         math.tag=../math \
-                         swrast.tag=../swrast \
-                         swrast_setup.tag=../swrast_setup \
-                         tnl.tag=../tnl \
-                         miniglx.tag=../miniglx \
-                         array_cache.tag=array_cache
+TAGFILES		= \
+			 core_subset.tag=../core_subset \
+                         math_subset.tag=../math_subset \
+                         miniglx.tag=../miniglx
 GENERATE_TAGFILE       = radeon_subset.tag
 ALLEXTERNALS           = NO
 PERL_PATH              = 

include/GL/gl.h

@@ -1,10 +1,9 @@
-/* $Id: gl.h,v 1.72 2002/10/17 19:39:31 kschultz Exp $ */
 
 /*
  * Mesa 3-D graphics library
- * Version:  4.1
+ * Version:  5.0.1
  *
- * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -2646,6 +2645,13 @@ GLAPI void GLAPIENTRY glTracePointerRangeMESA( const GLvoid* first, const GLvoid
 #endif /* GL_APPLE_ycbcr_422 */
 
 
+#ifndef GL_ATI_texture_env_combine3
+#define GL_ATI_texture_env_combine3 1
+#define GL_MODULATE_ADD_ATI               0x8744
+#define GL_MODULATE_SIGNED_ADD_ATI        0x8745
+#define GL_MODULATE_SUBTRACT_ATI          0x8746
+#endif
+
 
 /**********************************************************************
  * Begin system-specific stuff

include/GL/glext.h

@@ -2423,6 +2423,11 @@ extern "C" {
 #define GL_ACTIVE_STENCIL_FACE_EXT        0x8911
 #endif
 
+#ifndef GL_ATI_texture_env_combine3
+#define GL_MODULATE_ADD_ATI               0x8744
+#define GL_MODULATE_SIGNED_ADD_ATI        0x8745
+#define GL_MODULATE_SUBTRACT_ATI          0x8746
+#endif
 
 /*************************************************************/
 
@@ -5016,6 +5021,9 @@ GLAPI void APIENTRY glActiveStencilFaceEXT (GLenum);
 typedef void (APIENTRY * PFNGLACTIVESTENCILFACEEXTPROC) (GLenum face);
 #endif
 
+#ifndef GL_ATI_texture_env_combine3
+#define GL_ATI_texture_env_combine3 1
+#endif
 
 #ifdef __cplusplus
 }

progs/demos/Makefile

@@ -14,12 +14,12 @@ PROGS = gears \
 
 # make executable from .c file:
 .c: $(LIB_DEP)
-	gcc -I../include -I../util -g $< -L../lib -lglut -lGL -lm -o $@
+	gcc -I../include -I../util -g $< -L../lib -lglut -lGL -lGLU -lm -o $@
 
 
 default: $(PROGS)
 
 
 clean:
-	-rm *.o *~
+	-rm -f *.o *~ $(PROGS)
 

progs/demos/bounce.c

@@ -1,4 +1,4 @@
-/* $Id: bounce.c,v 1.3.8.1 2003/02/23 19:25:07 keithw Exp $ */
+/* $Id: bounce.c,v 1.3.8.2 2003/03/22 08:40:35 keithw Exp $ */
 
 /*
  * Bouncing ball demo.
@@ -115,15 +115,15 @@ draw(void)
   glColor3f(0, 1, 1);
   glBegin(GL_LINES);
   for (i = -5; i <= 5; i++) {
-    glVertex2i(i, -5);
-    glVertex2i(i, 5);
+    glVertex2f(i, -5);
+    glVertex2f(i, 5);
   }
   for (i = -5; i <= 5; i++) {
-    glVertex2i(-5, i);
-    glVertex2i(5, i);
+    glVertex2f(-5, i);
+    glVertex2f(5, i);
   }
   for (i = -5; i <= 5; i++) {
-    glVertex2i(i, -5);
+    glVertex2f(i, -5);
     glVertex2f(i * 1.15, -5.9);
   }
   glVertex2f(-5.3, -5.35);

progs/demos/isosurf.c

@@ -1,4 +1,4 @@
-/* $Id: isosurf.c,v 1.15.4.1 2003/02/23 21:04:25 keithw Exp $ */
+/* $Id: isosurf.c,v 1.15.4.3 2003/04/07 22:27:23 keithw Exp $ */
 
 /*
  * Display an isosurface of 3-D wind speed volume.
@@ -37,52 +37,21 @@
 #define GL_GLEXT_LEGACY
 #include "GL/glut.h"
 
-#include "readtex.c"   /* I know, this is a hack.  KW: me too. */
+#include "readtex.c"   
 #define TEXTURE_FILE "../images/reflect.rgb"
 
-#define LIT		0x00000001
-#define UNLIT		0x00000002
-#define REFLECT		0x00000004
 #define POINT_FILTER	0x00000008
 #define LINEAR_FILTER	0x00000010
-#define GLVERTEX	0x00000020
-#define DRAW_ELTS	0x00000040 
-#define DRAW_ARRAYS	0x00000080 
-#define ARRAY_ELT	0x00000100
-#define LOCKED	        0x00000200
-#define UNLOCKED	0x00000400 
-#define IMMEDIATE	0x00000800
-#define DISPLAYLIST	0x00001000
 #define SHADE_SMOOTH	0x00002000
 #define SHADE_FLAT	0x00004000
 #define TRIANGLES	0x00008000
 #define STRIPS		0x00010000
 #define POINTS		0x00020000
-#define USER_CLIP	0x00040000
-#define NO_USER_CLIP	0x00080000
-#define MATERIALS	0x00100000
-#define NO_MATERIALS	0x00200000
-#define FOG		0x00400000
-#define NO_FOG		0x00800000
 #define QUIT		0x01000000
 #define GLINFO		0x02000000
-#define STIPPLE		0x04000000
-#define NO_STIPPLE	0x08000000
-#define POLYGON_FILL	0x10000000
-#define POLYGON_LINE	0x20000000
 
-#define LIGHT_MASK		(LIT|UNLIT|REFLECT)
-#define FILTER_MASK		(POINT_FILTER|LINEAR_FILTER)
-#define RENDER_STYLE_MASK	(GLVERTEX|DRAW_ARRAYS|DRAW_ELTS|ARRAY_ELT)
-#define DLIST_MASK		(IMMEDIATE|DISPLAYLIST)
-#define LOCK_MASK		(LOCKED|UNLOCKED)
-#define MATERIAL_MASK		(MATERIALS|NO_MATERIALS)
 #define PRIMITIVE_MASK		(TRIANGLES|STRIPS|POINTS)
-#define CLIP_MASK		(USER_CLIP|NO_USER_CLIP)
 #define SHADE_MASK		(SHADE_SMOOTH|SHADE_FLAT)
-#define FOG_MASK		(FOG|NO_FOG)
-#define STIPPLE_MASK		(STIPPLE|NO_STIPPLE)
-#define POLYGON_MASK		(POLYGON_FILL|POLYGON_LINE)
 
 #define MAXVERTS 10000
 static GLint maxverts = MAXVERTS;
@@ -147,27 +116,6 @@ static void read_surface( char *filename )
 
 static void print_flags( const char *msg, GLuint flags ) 
 {
-   fprintf(stderr, 
-	   "%s (0x%x): %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
-	   msg, flags,
-	   (flags & GLVERTEX) ? "glVertex, " : "",
-	   (flags & DRAW_ARRAYS) ? "glDrawArrays, " : "",
-	   (flags & DRAW_ELTS) ? "glDrawElements, " : "",
-	   (flags & ARRAY_ELT) ? "glArrayElement, " : "",
-	   (flags & LOCKED) ? "locked arrays, " : "",
-	   (flags & TRIANGLES) ? "GL_TRIANGLES, " : "",
-	   (flags & STRIPS) ? "GL_TRIANGLE_STRIP, " : "",
-	   (flags & POINTS) ? "GL_POINTS, " : "",
-	   (flags & DISPLAYLIST) ? "as a displaylist, " : "",
-	   (flags & LIT) ? "lit, " : "",
-	   (flags & UNLIT) ? "unlit, " : "",
-	   (flags & REFLECT) ? "reflect, " : "",
-	   (flags & SHADE_FLAT) ? "flat-shaded, " : "",
-	   (flags & USER_CLIP) ? "user_clip, " : "",
-	   (flags & MATERIALS) ? "materials, " : "",
-	   (flags & FOG) ? "fog, " : "",
-	   (flags & STIPPLE) ? "stipple, " : "",
-	   (flags & POLYGON_LINE) ? "polygon mode line, " : "");
 }
 
 
@@ -372,134 +320,19 @@ static void draw_surface( unsigned int with_state )
 {
    GLint i, j;
    
-   if (with_state & DISPLAYLIST) {
-      if ((with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK|MATERIAL_MASK)) != 
-	  dlist_state) {
-	 /* 
-	  */
-	 fprintf(stderr, "rebuilding displaylist\n");
 
-	 if (dlist_state)
-	    glDeleteLists( surf1, 1 );
+   switch (with_state & (PRIMITIVE_MASK)) {
 
-	 dlist_state = with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK|
-				     MATERIAL_MASK);
-	 surf1 = glGenLists(1);
-	 glNewList(surf1, GL_COMPILE);
-	 draw_surface( dlist_state );
-	 glEndList();
-      }
-
-      glCallList( surf1 );
-      return;
-   }
-
-   switch (with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK)) {
-#ifdef GL_EXT_vertex_array
-
-   case (DRAW_ELTS|TRIANGLES):
-      if (with_state & MATERIALS) {
-	 for (j = i = 0 ; i < num_tri_verts ; i += 600, j++) {
-	    GLuint nr = MIN(num_tri_verts-i, 600);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, col[j]);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col[j]);
-	    glDrawElements( GL_TRIANGLES, nr, GL_UNSIGNED_INT, tri_indices+i );
-	 }
-      } else {
-	 glDrawElements( GL_TRIANGLES, num_tri_verts, GL_UNSIGNED_INT,
-			 tri_indices );
-      }
-      break;
-
-   case (DRAW_ARRAYS|TRIANGLES):
-      glDrawArraysEXT( GL_TRIANGLES, 0, (numverts-2)*3 );
-      break;
-
-   case (ARRAY_ELT|TRIANGLES):
-      if (with_state & MATERIALS) {
-	 for (j = i = 0 ; i < num_tri_verts ; i += 600, j++) {
-	    GLuint nr = MIN(num_tri_verts-i, 600);
-	    GLuint k;
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, col[j]);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col[j]);
-	    glBegin( GL_TRIANGLES );
-	    for (k = 0 ; k < nr ; k++)
-	       glArrayElement( tri_indices[i+k] );
-	    glEnd();
-	 }
-      } else {
-	 glBegin( GL_TRIANGLES );
-	 for (i = 0 ; i < num_tri_verts ; i++)
-	    glArrayElement( tri_indices[i] );
-
-	 glEnd();
-      }
-      break;
-
-
-      /* Uses the original arrays (including duplicate elements):
-       */
-   case (DRAW_ARRAYS|STRIPS):
-      glDrawArraysEXT( GL_TRIANGLE_STRIP, 0, numverts );
-      break;
-   case (DRAW_ELTS|STRIPS):
-      glDrawElements( GL_TRIANGLE_STRIP, numverts,
-		      GL_UNSIGNED_INT, strip_indices );
-      break;
-
-      /* Uses the original arrays (including duplicate elements):
-       */
-   case (ARRAY_ELT|STRIPS):
-      glBegin( GL_TRIANGLE_STRIP );
-      for (i = 0 ; i < numverts ; i++)
-	 glArrayElement( i );
-      glEnd();
-      break;
-
-   case (DRAW_ARRAYS|POINTS):
-      glDrawArraysEXT( GL_POINTS, 0, numuniq );
-      break;
-   case (DRAW_ELTS|POINTS):
-      /* can use numuniq with strip_indices as strip_indices[i] == i.
-       */
-      glDrawElements( GL_POINTS, numuniq, 
-		      GL_UNSIGNED_INT, strip_indices );
-      break;
-   case (ARRAY_ELT|POINTS):
-      /* just emit each unique element once:
-       */
-      glBegin( GL_POINTS );
-      for (i = 0 ; i < numuniq ; i++)
-	 glArrayElement( i );
-      glEnd();
-      break;
-#endif
-
-   case (GLVERTEX|TRIANGLES):
-      if (with_state & MATERIALS) {
-	 for (j = i = 0 ; i < num_tri_verts ; i += 600, j++) {
-	    GLuint nr = MIN(num_tri_verts-i, 600);
-	    GLuint k;
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, col[j]);
-	    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col[j]);
-	    glBegin( GL_TRIANGLES );
-	    for (k = 0 ; k < nr ; k++) {
-	       glColor3fv( &compressed_data[tri_indices[i+k]][3] );
-	       glVertex3fv( &compressed_data[tri_indices[i+k]][0] );
-	    }
-	    glEnd();
-	 }
-      } else {
+   case (0|TRIANGLES):
 	 glBegin( GL_TRIANGLES );
 	 for (i = 0 ; i < num_tri_verts ; i++) {
 	    glColor3fv( &compressed_data[tri_indices[i]][3] );
 	    glVertex3fv( &compressed_data[tri_indices[i]][0] );
 	 }
 	 glEnd();
-      }
       break;
 
-   case (GLVERTEX|POINTS):
+   case (0|POINTS):
       /* Renders all points, but not in strip order...  Shouldn't be a
        * problem, but people may be confused as to why points are so
        * much faster in this demo...  And why cva doesn't help them...
@@ -512,7 +345,7 @@ static void draw_surface( unsigned int with_state )
       glEnd();
       break;
 
-   case (GLVERTEX|STRIPS):
+   case (0|STRIPS):
       glBegin( GL_TRIANGLE_STRIP );
       for (i=0;i<numverts;i++) {
          glColor3fv( &data[i][0] );
@@ -523,7 +356,7 @@ static void draw_surface( unsigned int with_state )
 
    default:
       fprintf(stderr, "unimplemented mode %x...\n", 
-	      (with_state & (RENDER_STYLE_MASK|PRIMITIVE_MASK)));
+	      (with_state & (PRIMITIVE_MASK)));
       break;
    }
 }
@@ -636,39 +469,6 @@ static void ModeMenu(int m)
       return;
    }
 
-   if (CHANGED(state, m, FILTER_MASK)) {
-      UPDATE(state, m, FILTER_MASK);
-      if (m & LINEAR_FILTER) {
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-      } else {
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-	 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-      }
-   }
-
-   if (CHANGED(state, m, LIGHT_MASK)) {
-      UPDATE(state, m, LIGHT_MASK);
-      if (m & LIT) {
-	 glEnable(GL_LIGHTING);
-	 glDisable(GL_TEXTURE_GEN_S);
-	 glDisable(GL_TEXTURE_GEN_T);
-	 glDisable(GL_TEXTURE_2D);
-      }
-      else if (m & UNLIT) {
-	 glDisable(GL_LIGHTING);
-	 glDisable(GL_TEXTURE_GEN_S);
-	 glDisable(GL_TEXTURE_GEN_T);
-	 glDisable(GL_TEXTURE_2D);
-      }
-      else if (m & REFLECT) {
-	 glDisable(GL_LIGHTING);
-	 glEnable(GL_TEXTURE_GEN_S);
-	 glEnable(GL_TEXTURE_GEN_T);
-	 glEnable(GL_TEXTURE_2D);
-      }
-   }
-
    if (CHANGED(state, m, SHADE_MASK)) {
       UPDATE(state, m, SHADE_MASK);
       if (m & SHADE_SMOOTH)
@@ -678,77 +478,12 @@ static void ModeMenu(int m)
    }
 
 
-   if (CHANGED(state, m, CLIP_MASK)) {
-      UPDATE(state, m, CLIP_MASK);
-      if (m & USER_CLIP) {
-	 glEnable(GL_CLIP_PLANE0);
-      } else {
-	 glDisable(GL_CLIP_PLANE0);
-      }
+
+   if (m & (PRIMITIVE_MASK)) {
+      UPDATE(state, m, (PRIMITIVE_MASK));
    }
 
-   if (CHANGED(state, m, FOG_MASK)) {
-      UPDATE(state, m, FOG_MASK);
-      if (m & FOG) {
-	 glEnable(GL_FOG);
-      }
-      else {
-	 glDisable(GL_FOG);
-      }
-   }
 
-   if (CHANGED(state, m, STIPPLE_MASK)) {
-      UPDATE(state, m, STIPPLE_MASK);
-      if (m & STIPPLE) {
-	 glEnable(GL_POLYGON_STIPPLE);
-      }
-      else {
-	 glDisable(GL_POLYGON_STIPPLE);
-      }
-   }
-
-   if (CHANGED(state, m, POLYGON_MASK)) {
-      UPDATE(state, m, POLYGON_MASK);
-      if (m & POLYGON_FILL) {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-      }
-      else {
-	 glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-      }
-   }
-
-#ifdef GL_EXT_vertex_array
-   if (CHANGED(state, m, (LOCK_MASK|RENDER_STYLE_MASK|PRIMITIVE_MASK)))
-   {
-      if (m & (PRIMITIVE_MASK)) {
-	 UPDATE(state, m, (PRIMITIVE_MASK));
-      }
-
-      if (m & (RENDER_STYLE_MASK)) {
-	 UPDATE(state, m, (RENDER_STYLE_MASK));
-      }
-
-      if (m & LOCK_MASK) {
-	 UPDATE(state, m, (LOCK_MASK));
-      }
-
-
-      print_flags("primitive", state & PRIMITIVE_MASK);
-      print_flags("render style", state & RENDER_STYLE_MASK);
-
-   }
-#endif
-
-
-   if (m & DLIST_MASK) {
-      UPDATE(state, m, DLIST_MASK);
-   }
-
-   if (m & MATERIAL_MASK) {
-      UPDATE(state, m, MATERIAL_MASK);
-   }
-
-   print_flags("new flags", state);
 
    glutPostRedisplay();
 }
@@ -805,24 +540,17 @@ static void Init(int argc, char *argv[])
 	 expand_arrays();
 	 make_tri_indices();
 
-	 if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
-	    printf("Error: couldn't load texture image\n");
-	    exit(1);
-	 }
+/* 	 if (!LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) { */
+/* 	    printf("Error: couldn't load texture image\n"); */
+/* 	    exit(1); */
+/* 	 } */
       }
    }
 
    ModeMenu(SHADE_SMOOTH|
-	    UNLIT|
 	    POINT_FILTER|
-	    NO_USER_CLIP|
-	    NO_MATERIALS|
-	    NO_FOG|
-	    NO_STIPPLE|
-	    IMMEDIATE|
-	    STRIPS|
-	    UNLOCKED|
-	    GLVERTEX);
+	    TRIANGLES|
+	    0);
 
    if (PrintInfo) {
       printf("GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
@@ -848,30 +576,9 @@ static void Key( unsigned char key, int x, int y )
    switch (key) {
    case 27:
       exit(0);
-   case 'f':
-      ModeMenu((state ^ FOG_MASK) & FOG_MASK);
-      break;
    case 's':
       ModeMenu((state ^ SHADE_MASK) & SHADE_MASK);
       break;
-   case 't':
-      ModeMenu((state ^ STIPPLE_MASK) & STIPPLE_MASK);
-      break;
-   case 'l':
-      ModeMenu((state ^ LIGHT_MASK) & (LIT|UNLIT));
-      break;
-   case 'm':
-      ModeMenu((state ^ MATERIAL_MASK) & MATERIAL_MASK);
-      break;
-   case 'c':
-      ModeMenu((state ^ CLIP_MASK) & CLIP_MASK);
-      break;
-   case 'v':
-      ModeMenu((LOCKED|IMMEDIATE|DRAW_ELTS|TRIANGLES) & allowed);
-      break;
-   case 'V':
-      ModeMenu(UNLOCKED|IMMEDIATE|GLVERTEX|STRIPS);
-      break;
    case 'b':
       Benchmark(5.0, 0);
       break;
@@ -888,24 +595,6 @@ static void Key( unsigned char key, int x, int y )
       set_matrix();
       glutPostRedisplay();
       break;
-   case '-':
-   case '_':
-      plane[3] += 2.0;
-      glMatrixMode(GL_MODELVIEW);
-      glLoadIdentity();
-      glClipPlane(GL_CLIP_PLANE0, plane);
-      set_matrix();
-      glutPostRedisplay();
-      break;
-   case '+':
-   case '=':
-      plane[3] -= 2.0;
-      glMatrixMode(GL_MODELVIEW);
-      glLoadIdentity();
-      glClipPlane(GL_CLIP_PLANE0, plane);
-      set_matrix();
-      glutPostRedisplay();
-      break;
    case ' ':
       Init(0,0);
       break;
@@ -999,16 +688,6 @@ int main(int argc, char **argv)
    /* Make sure server supports the vertex array extension */
    extensions = (char *) glGetString( GL_EXTENSIONS );
 
-   if (!strstr( extensions, "GL_EXT_vertex_array" ))
-   {
-      printf("Vertex arrays not supported by this renderer\n");
-      allowed &= ~(LOCKED|DRAW_ARRAYS|DRAW_ELTS|ARRAY_ELT);
-   }
-   else if (!strstr( extensions, "GL_EXT_compiled_vertex_array" ))
-   {
-      printf("Compiled vertex arrays not supported by this renderer\n");
-      allowed &= ~LOCKED;
-   }
 
    Init(argc, argv);
    ModeMenu(arg_mode);
@@ -1016,43 +695,15 @@ int main(int argc, char **argv)
    glutCreateMenu(ModeMenu);
    glutAddMenuEntry("GL info",               GLINFO);
    glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Lit",                   LIT);
-   glutAddMenuEntry("Unlit",                 UNLIT);
-   glutAddMenuEntry("Reflect",               REFLECT);
    glutAddMenuEntry("", 0);
    glutAddMenuEntry("Smooth",                SHADE_SMOOTH);
    glutAddMenuEntry("Flat",                  SHADE_FLAT);
    glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Fog",                   FOG);
-   glutAddMenuEntry("No Fog",                NO_FOG);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Stipple",               STIPPLE);
-   glutAddMenuEntry("No Stipple",            NO_STIPPLE);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Polygon Mode Fill",     POLYGON_FILL);
-   glutAddMenuEntry("Polygon Mode Line",     POLYGON_LINE);
-   glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Point Filtered",        POINT_FILTER);
-   glutAddMenuEntry("Linear Filtered",       LINEAR_FILTER);
    glutAddMenuEntry("", 0);
    glutAddMenuEntry("GL_TRIANGLES",          TRIANGLES);
    glutAddMenuEntry("GL_TRIANGLE_STRIPS",    STRIPS);
    glutAddMenuEntry("GL_POINTS",             POINTS);
    glutAddMenuEntry("", 0);
-   glutAddMenuEntry("Displaylist",           DISPLAYLIST);
-   glutAddMenuEntry("Immediate",             IMMEDIATE);
-   glutAddMenuEntry("", 0);
-   if (allowed & LOCKED) {
-      glutAddMenuEntry("Locked Arrays (CVA)", LOCKED);
-      glutAddMenuEntry("Unlocked Arrays",     UNLOCKED);
-      glutAddMenuEntry("", 0);
-   }
-   glutAddMenuEntry("glVertex",               GLVERTEX);
-   if (allowed & DRAW_ARRAYS) {
-      glutAddMenuEntry("glDrawElements",      DRAW_ELTS);
-      glutAddMenuEntry("glDrawArrays",	      DRAW_ARRAYS);
-      glutAddMenuEntry("glArrayElement",      ARRAY_ELT);
-   }
    glutAddMenuEntry("", 0);
    glutAddMenuEntry("Quit",                   QUIT);
    glutAttachMenu(GLUT_RIGHT_BUTTON);
@@ -1062,9 +713,9 @@ int main(int argc, char **argv)
    glutSpecialFunc(SpecialKey);
    glutDisplayFunc(Display);
 
-/*    Benchmark(5,0); */
-/*    Benchmark(5,0); */
-/*    Benchmark(5,0); */
+   Benchmark(5,0); 
+   Benchmark(5,0); 
+   Benchmark(5,0); 
    glutMainLoop();
    return 0;
 }

progs/demos/terrain.c

@@ -680,18 +680,13 @@ loadpic(void)
    }
 
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-   if ((gluerr = gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, 256, 256, GL_RGBA,
-				   GL_UNSIGNED_BYTE,
-				   (GLvoid *) (&terrainpic[0][0])))) {
-      fprintf(stderr, "GLULib%s\n", (char *) gluErrorString(gluerr));
-      exit(-1);
-   }
+   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, GL_RGBA, 256, 256, GL_RGBA,
+		GL_UNSIGNED_BYTE, (GLvoid *) terrainpic);
 
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 
-   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-		   GL_LINEAR_MIPMAP_LINEAR);
+   glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
    glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);

progs/demos/texobj.c

@@ -1,4 +1,4 @@
-/* $Id: texobj.c,v 1.6.6.1 2003/02/23 19:25:07 keithw Exp $ */
+/* $Id: texobj.c,v 1.6.6.2 2003/03/22 08:40:35 keithw Exp $ */
 
 /*
  * Example of using the 1.1 texture object functions.
@@ -50,7 +50,7 @@ static void draw( void )
 #endif
    }
    else {
-      glCallList( TexObj[0] );
+/*       glCallList( TexObj[0] ); */
    }
    glBegin( GL_POLYGON );
    glTexCoord2f( 0.0, 0.0 );   glVertex2f( -1.0, -1.0 );
@@ -70,7 +70,7 @@ static void draw( void )
 #endif
    }
    else {
-      glCallList( TexObj[1] );
+/*       glCallList( TexObj[1] ); */
    }
    glBegin( GL_POLYGON );
    glTexCoord2f( 0.0, 0.0 );   glVertex2f( -1.0, -1.0 );
@@ -166,8 +166,8 @@ static void init( void )
 #endif
    }
    else {
-      TexObj[0] = glGenLists(2);
-      TexObj[1] = TexObj[0]+1;
+/*       TexObj[0] = glGenLists(2); */
+/*       TexObj[1] = TexObj[0]+1; */
    }
 
    /* setup first texture object */
@@ -178,7 +178,7 @@ static void init( void )
 #endif
    }
    else {
-      glNewList( TexObj[0], GL_COMPILE );
+/*       glNewList( TexObj[0], GL_COMPILE ); */
    }
    /* red on white */
    for (i=0;i<height;i++) {
@@ -201,7 +201,7 @@ static void init( void )
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    if (!UseObj) {
-      glEndList();
+/*       glEndList(); */
    }
    /* end of texture object */
 
@@ -214,7 +214,7 @@ static void init( void )
 /*       assert(!glIsTexture(TexObj[1] + 999)); */
    }
    else {
-      glNewList( TexObj[1], GL_COMPILE );
+/*       glNewList( TexObj[1], GL_COMPILE ); */
    }
    /* green on blue */
    for (i=0;i<height;i++) {
@@ -235,7 +235,7 @@ static void init( void )
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
    glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
    if (!UseObj) {
-      glEndList();
+/*       glEndList(); */
    }
    /* end texture object */
 

progs/samples/Makefile

@@ -17,12 +17,14 @@ PROGS = prim \
 
 # make executable from .c file:
 .c: $(LIB_DEP)
-	gcc -I../include -g $< -L../lib -lglut -lGL -lm -o $@
+	gcc -I../include -g $< -L../lib -lglut -lGL -lGLU -lm -o $@
 
 
 default: $(PROGS)
 
 
-clean:
-	-rm *.o *~
+clean: clean_here
+
+clean_here:
+	rm -f *.o *~ $(PROGS)
 

progs/samples/depth.c

@@ -62,7 +62,7 @@ static void Init(void)
     GLint i;
 
     glClearColor(0.0, 0.0, 0.0, 0.0);
-    glClearIndex(0.0);
+/*     glClearIndex(0.0); */
 
     if (!rgb) {
 	for (i = 0; i < 16; i++) {
@@ -71,7 +71,7 @@ static void Init(void)
 	}
     }
 
-    glPolygonStipple(stippleBits);
+/*     glPolygonStipple(stippleBits); */
 
     antiAlias = GL_FALSE;
     stipple = GL_FALSE;
@@ -135,11 +135,11 @@ static void Draw(void)
     }
 
     glBegin(GL_TRIANGLES);
-	(rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexi(ci1);
+        glColor3fv(RGBMap[COLOR_BLUE]);
 	glVertex3f( 0.9, -0.9, -30.0);
 	glVertex3f( 0.9,  0.9, -30.0);
 	glVertex3f(-0.9,  0.0, -30.0);
-	(rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexi(ci2);
+	glColor3fv(RGBMap[COLOR_GREEN]);
 	glVertex3f(-0.9, -0.9, -40.0);
 	glVertex3f(-0.9,  0.9, -40.0);
 	glVertex3f( 0.9,  0.0, -25.0);

progs/samples/line.c

@@ -141,7 +141,7 @@ static void Draw(void)
     for (i = 0; i < 360; i += 5) {
 	glRotatef(5.0, 0,0,1);
 
-	(rgb) ? glColor3f(1.0, 1.0, 0.0) : glIndexi(ci);
+	glColor3f(1.0, 1.0, 0.0);
 	glBegin(GL_LINE_STRIP);
 	    glVertex3fv(pntA);
 	    glVertex3fv(pntB);
@@ -199,7 +199,7 @@ int main(int argc, char **argv)
 
     glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300);
 
-    windType = (rgb) ? GLUT_RGB : GLUT_INDEX;
+    windType = GLUT_RGB;
     windType |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
     glutInitDisplayMode(windType);
 

progs/samples/point.c

@@ -153,9 +153,9 @@ static void Draw(void)
 
 /*     glPointSize(size); */
     if (mode) {
-	(rgb) ? glColor3f(1.0, 0.0, 0.0) : glIndexf(CI_ANTI_ALIAS_RED);
+       glColor3f(1.0, 0.0, 0.0);
     } else {
-	(rgb) ? glColor3f(1.0, 0.0, 0.0) : glIndexf(CI_RED);
+       glColor3f(1.0, 0.0, 0.0);
     }
     glBegin(GL_POINTS);
 	glVertex3fv(point);

progs/samples/prim.c

@@ -126,18 +126,18 @@ static void Point(void)
 
     glBegin(GL_POINTS);
 	SetColor(COLOR_WHITE);
-	glVertex2i(0, 0);
+	glVertex2f(0, 0);
 	for (i = 1; i < 8; i++) {
 	    GLint j = i * 2;
 	    SetColor(COLOR_BLACK+i);
-	    glVertex2i(-j, -j);
-	    glVertex2i(-j, 0);
-	    glVertex2i(-j, j);
-	    glVertex2i(0, j);
-	    glVertex2i(j, j);
-	    glVertex2i(j, 0);
-	    glVertex2i(j, -j);
-	    glVertex2i(0, -j);
+	    glVertex2f(-j, -j);
+	    glVertex2f(-j, 0);
+	    glVertex2f(-j, j);
+	    glVertex2f(0, j);
+	    glVertex2f(j, j);
+	    glVertex2f(j, 0);
+	    glVertex2f(j, -j);
+	    glVertex2f(0, -j);
 	}
     glEnd();
 }
@@ -152,8 +152,8 @@ static void Lines(void)
     for (i = 1; i < 8; i++) {
 	SetColor(COLOR_BLACK+i);
 	glBegin(GL_LINES);
-	    glVertex2i(-boxW/4, -boxH/4);
-	    glVertex2i(boxW/4, boxH/4);
+	    glVertex2f(-boxW/4, -boxH/4);
+	    glVertex2f(boxW/4, boxH/4);
 	glEnd();
 	glTranslatef(4, 0, 0);
     }
@@ -161,7 +161,7 @@ static void Lines(void)
     glPopMatrix();
 
     glBegin(GL_LINES);
-	glVertex2i(0, 0);
+	glVertex2f(0, 0);
     glEnd();
 }
 
@@ -180,7 +180,7 @@ static void LineStrip(void)
     glEnd();
 
     glBegin(GL_LINE_STRIP);
-	glVertex2i(0, 0);
+	glVertex2f(0, 0);
     glEnd();
 }
 
@@ -218,11 +218,11 @@ static void LineLoop(void)
 
     SetColor(COLOR_GREEN);
     glBegin(GL_POINTS);
-	glVertex2i(0, 0);
+	glVertex2f(0, 0);
     glEnd();
 
     glBegin(GL_LINE_LOOP);
-	glVertex2i(0, 0);
+	glVertex2f(0, 0);
     glEnd();
 }
 
@@ -231,16 +231,16 @@ static void Bitmap(void)
 
     glBegin(GL_LINES);
 	SetColor(COLOR_GREEN);
-	glVertex2i(-boxW/2, 0);
-	glVertex2i(boxW/2, 0);
-	glVertex2i(0, -boxH/2);
-	glVertex2i(0, boxH/2);
+	glVertex2f(-boxW/2, 0);
+	glVertex2f(boxW/2, 0);
+	glVertex2f(0, -boxH/2);
+	glVertex2f(0, boxH/2);
 	SetColor(COLOR_RED);
-	glVertex2i(0, -3);
-	glVertex2i(0, -3+OPENGL_HEIGHT);
+	glVertex2f(0, -3);
+	glVertex2f(0, -3+OPENGL_HEIGHT);
 	SetColor(COLOR_BLUE);
-	glVertex2i(0, -3);
-	glVertex2i(OPENGL_WIDTH, -3);
+	glVertex2f(0, -3);
+	glVertex2f(OPENGL_WIDTH, -3);
     glEnd();
 
     SetColor(COLOR_GREEN);
@@ -257,23 +257,23 @@ static void Triangles(void)
 
     glBegin(GL_TRIANGLES);
 	SetColor(COLOR_GREEN);
-	glVertex2i(-boxW/4, -boxH/4);
+	glVertex2f(-boxW/4, -boxH/4);
 	SetColor(COLOR_RED);
-	glVertex2i(-boxW/8, -boxH/16);
+	glVertex2f(-boxW/8, -boxH/16);
 	SetColor(COLOR_BLUE);
-	glVertex2i(boxW/8, -boxH/16);
+	glVertex2f(boxW/8, -boxH/16);
 
 	SetColor(COLOR_GREEN);
-	glVertex2i(-boxW/4, boxH/4);
+	glVertex2f(-boxW/4, boxH/4);
 	SetColor(COLOR_RED);
-	glVertex2i(-boxW/8, boxH/16);
+	glVertex2f(-boxW/8, boxH/16);
 	SetColor(COLOR_BLUE);
-	glVertex2i(boxW/8, boxH/16);
+	glVertex2f(boxW/8, boxH/16);
     glEnd();
 
     glBegin(GL_TRIANGLES);
-	glVertex2i(0, 0);
-	glVertex2i(-100, 100);
+	glVertex2f(0, 0);
+	glVertex2f(-100, 100);
     glEnd();
 }
 
@@ -282,28 +282,28 @@ static void TriangleStrip(void)
 
     glBegin(GL_TRIANGLE_STRIP);
 	SetColor(COLOR_GREEN);
-	glVertex2i(-boxW/4, -boxH/4);
+	glVertex2f(-boxW/4, -boxH/4);
 	SetColor(COLOR_RED);
-	glVertex2i(-boxW/4, boxH/4);
+	glVertex2f(-boxW/4, boxH/4);
 	SetColor(COLOR_BLUE);
-	glVertex2i(0, -boxH/4);
+	glVertex2f(0, -boxH/4);
 	SetColor(COLOR_WHITE);
-	glVertex2i(0, boxH/4);
+	glVertex2f(0, boxH/4);
 	SetColor(COLOR_CYAN);
-	glVertex2i(boxW/4, -boxH/4);
+	glVertex2f(boxW/4, -boxH/4);
 	SetColor(COLOR_YELLOW);
-	glVertex2i(boxW/4, boxH/4);
+	glVertex2f(boxW/4, boxH/4);
     glEnd();
 
     glBegin(GL_TRIANGLE_STRIP);
-	glVertex2i(0, 0);
-	glVertex2i(-100, 100);
+	glVertex2f(0, 0);
+	glVertex2f(-100, 100);
     glEnd();
 }
 
 static void TriangleFan(void)
 {
-    GLint vx[8][2];
+    GLfloat vx[8][2];
     GLint x0, y0, x1, y1, x2, y2, x3, y3;
     GLint i;
 
@@ -327,16 +327,16 @@ static void TriangleFan(void)
 
     glBegin(GL_TRIANGLE_FAN);
 	SetColor(COLOR_WHITE);
-	glVertex2i(0, 0);
+	glVertex2f(0, 0);
 	for (i = 0; i < 8; i++) {
 	    SetColor(COLOR_WHITE-i);
-	    glVertex2iv(vx[i]);
+	    glVertex2fv(vx[i]);
 	}
     glEnd();
 
     glBegin(GL_TRIANGLE_FAN);
-	glVertex2i(0, 0);
-	glVertex2i(-100, 100);
+	glVertex2f(0, 0);
+	glVertex2f(-100, 100);
     glEnd();
 }
 
@@ -349,7 +349,7 @@ static void Rect(void)
 
 static void PolygonFunc(void)
 {
-    GLint vx[8][2];
+    GLfloat vx[8][2];
     GLint x0, y0, x1, y1, x2, y2, x3, y3;
     GLint i;
 
@@ -374,13 +374,13 @@ static void PolygonFunc(void)
     glBegin(GL_POLYGON);
 	for (i = 0; i < 8; i++) {
 	    SetColor(COLOR_WHITE-i);
-	    glVertex2iv(vx[i]);
+	    glVertex2fv(vx[i]);
 	}
     glEnd();
 
     glBegin(GL_POLYGON);
-	glVertex2i(0, 0);
-	glVertex2i(100, 100);
+	glVertex2f(0, 0);
+	glVertex2f(100, 100);
     glEnd();
 }
 
@@ -389,28 +389,28 @@ static void Quads(void)
 
     glBegin(GL_QUADS);
 	SetColor(COLOR_GREEN);
-	glVertex2i(-boxW/4, -boxH/4);
+	glVertex2f(-boxW/4, -boxH/4);
 	SetColor(COLOR_RED);
-	glVertex2i(-boxW/8, -boxH/16);
+	glVertex2f(-boxW/8, -boxH/16);
 	SetColor(COLOR_BLUE);
-	glVertex2i(boxW/8, -boxH/16);
+	glVertex2f(boxW/8, -boxH/16);
 	SetColor(COLOR_WHITE);
-	glVertex2i(boxW/4, -boxH/4);
+	glVertex2f(boxW/4, -boxH/4);
 
 	SetColor(COLOR_GREEN);
-	glVertex2i(-boxW/4, boxH/4);
+	glVertex2f(-boxW/4, boxH/4);
 	SetColor(COLOR_RED);
-	glVertex2i(-boxW/8, boxH/16);
+	glVertex2f(-boxW/8, boxH/16);
 	SetColor(COLOR_BLUE);
-	glVertex2i(boxW/8, boxH/16);
+	glVertex2f(boxW/8, boxH/16);
 	SetColor(COLOR_WHITE);
-	glVertex2i(boxW/4, boxH/4);
+	glVertex2f(boxW/4, boxH/4);
     glEnd();
 
     glBegin(GL_QUADS);
-	glVertex2i(0, 0);
-	glVertex2i(100, 100);
-	glVertex2i(-100, 100);
+	glVertex2f(0, 0);
+	glVertex2f(100, 100);
+	glVertex2f(-100, 100);
     glEnd();
 }
 
@@ -419,29 +419,30 @@ static void QuadStrip(void)
 
     glBegin(GL_QUAD_STRIP);
 	SetColor(COLOR_GREEN);
-	glVertex2i(-boxW/4, -boxH/4);
+	glVertex2f(-boxW/4, -boxH/4);
 	SetColor(COLOR_RED);
-	glVertex2i(-boxW/4, boxH/4);
+	glVertex2f(-boxW/4, boxH/4);
 	SetColor(COLOR_BLUE);
-	glVertex2i(0, -boxH/4);
+	glVertex2f(0, -boxH/4);
 	SetColor(COLOR_WHITE);
-	glVertex2i(0, boxH/4);
+	glVertex2f(0, boxH/4);
 	SetColor(COLOR_CYAN);
-	glVertex2i(boxW/4, -boxH/4);
+	glVertex2f(boxW/4, -boxH/4);
 	SetColor(COLOR_YELLOW);
-	glVertex2i(boxW/4, boxH/4);
+	glVertex2f(boxW/4, boxH/4);
     glEnd();
 
     glBegin(GL_QUAD_STRIP);
-	glVertex2i(0, 0);
-	glVertex2i(100, 100);
-	glVertex2i(-100, 100);
+	glVertex2f(0, 0);
+	glVertex2f(100, 100);
+	glVertex2f(-100, 100);
     glEnd();
 }
 
 static void Draw(void)
 {
-
+   fprintf(stderr, "%s\n", __FUNCTION__);
+   
     glViewport(0, 0, windW, windH);
     glDisable(GL_SCISSOR_TEST);
 

progs/samples/star.c

@@ -255,7 +255,6 @@ static void Key(unsigned char key, int x, int y)
 
 void Draw(void)
 {
-
     MoveStars();
     ShowStars();
     if (nitro > 0) {

progs/samples/tkmap.c

@@ -26,8 +26,8 @@ static void SetColor(int c)
 {
     if (glutGet(GLUT_WINDOW_RGBA))
         glColor3fv(RGBMap[c]);
-    else
-        glIndexf(c);
+/*     else */
+/*         glIndexf(c); */
 }
 
 static void InitMap(void)

progs/samples/tri.c

@@ -278,11 +278,11 @@ static void Draw(void)
 	EndPrim();
 
 	if (showVerticies) {
-	    (rgb) ? glColor3fv(RGBMap[COLOR_RED]) : glIndexf(color1);
+	    glColor3fv(RGBMap[COLOR_RED]);
 /* 	    glRectf(p0[0]-2, p0[1]-2, p0[0]+2, p0[1]+2); */
-	    (rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexf(color2);
+	    glColor3fv(RGBMap[COLOR_GREEN]);
 /* 	    glRectf(p1[0]-2, p1[1]-2, p1[0]+2, p1[1]+2); */
-	    (rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexf(color3);
+	    glColor3fv(RGBMap[COLOR_BLUE]);
 /* 	    glRectf(p2[0]-2, p2[1]-2, p2[0]+2, p2[1]+2); */
 	}
 
@@ -314,11 +314,11 @@ static void Draw(void)
 
     SetColor(COLOR_RED);
     BeginPrim();
-	(rgb) ? glColor3fv(RGBMap[COLOR_RED]) : glIndexf(color1);
+	glColor3fv(RGBMap[COLOR_RED]);
 	glVertex3fv(p0);
-	(rgb) ? glColor3fv(RGBMap[COLOR_GREEN]) : glIndexf(color2);
+	glColor3fv(RGBMap[COLOR_GREEN]);
 	glVertex3fv(p1);
-	(rgb) ? glColor3fv(RGBMap[COLOR_BLUE]) : glIndexf(color3);
+	glColor3fv(RGBMap[COLOR_BLUE]);
 	glVertex3fv(p2);
     EndPrim();
 

progs/tests/Makefile

@@ -6,9 +6,9 @@
 
 CC = gcc
 CFLAGS = -g -I../include
-LIBS = -L../lib -lGL -lglut -lm
+LIBS = -L../lib -lGL -lGLU -lglut -lm
 
-PROGS = miniglxtest miniglxsample manytex 
+PROGS = miniglxtest miniglxsample sample_server sample_server2 manytex texline
 
 
 ##### RULES #####

progs/tests/manytex.c

@@ -1,4 +1,4 @@
-/* $Id: manytex.c,v 1.4 2002/10/18 17:47:36 kschultz Exp $ */
+/* $Id: manytex.c,v 1.4.4.1 2003/03/22 08:46:22 keithw Exp $ */
 
 /*
  * test handling of many texture maps
@@ -191,8 +191,8 @@ static void Init( void )
 
       glBindTexture(GL_TEXTURE_2D, TextureID[i]);
 
-      if (i < LowPriorityCount)
-         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 0.5F);
+/*       if (i < LowPriorityCount) */
+/*          glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_PRIORITY, 0.5F); */
 
       if (RandomSize) {
 #if 0

progs/tests/miniglxsample.c

@@ -79,6 +79,8 @@ MakeWindow(Display * dpy, unsigned int width, unsigned int height)
    /* Bind the rendering context and window */
    glXMakeCurrent(dpy, win, ctx);
 
+   glViewport(0, 0, width, height);
+
    return win;
 }
 

progs/tests/miniglxtest.c

@@ -1,4 +1,4 @@
-/* $Id: miniglxtest.c,v 1.1.4.7 2003/02/21 22:18:24 keithw Exp $ */
+/* $Id: miniglxtest.c,v 1.1.4.9 2003/03/24 18:46:57 keithw Exp $ */
 
 /*
  * Test the mini GLX interface.
@@ -122,6 +122,8 @@ static Window make_rgb_db_window( Display *dpy,
 
    glXMakeCurrent( dpy, win, ctx );
 
+   glViewport(0, 0, width, height);
+
    return win;
 }
 
@@ -161,7 +163,6 @@ int foo( )
 
    XMapWindow( dpy, win );
 
-#if !USE_MINI_GLX
    {
       XEvent e;
       while (1) {
@@ -171,8 +172,6 @@ int foo( )
 	 }
       }
    }
-#endif
-
 
    event_loop( dpy, win );
 

progs/tests/sample_server.c

@@ -0,0 +1,112 @@
+/* $Id: sample_server.c,v 1.1.2.2 2003/04/17 15:47:46 keithw Exp $ */
+
+/*
+ * Sample server that just keeps first available window mapped.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <GL/gl.h>
+#include <GL/miniglx.h>
+
+struct client {
+   struct client *next;
+   Window windowid;
+   int mappable;
+};
+
+struct client *clients = 0, *mapped_client = 0;
+
+
+static struct client *find_client( Window id )
+{
+   struct client *c;
+
+   for (c = clients ; c ; c = c->next)
+      if (c->windowid == id)
+	 return c;
+
+   return 0;
+}
+
+int main( int argc, char *argv[] )
+{
+   Display *dpy;
+   XEvent ev;
+
+   dpy = __miniglx_StartServer(NULL);
+   if (!dpy) {
+      fprintf(stderr, "Error: __miniglx_StartServer failed\n");
+      return 1;
+   }
+
+   while (XNextEvent( dpy, &ev )) {
+      struct client *c;
+
+      switch (ev.type) {
+      case MapRequest:
+	 fprintf(stderr, "MapRequest\n");
+	 c = find_client(ev.xmaprequest.window);
+	 if (!c) break;
+	 c->mappable = True;
+	 break;
+
+      case UnmapNotify:
+	 fprintf(stderr, "UnmapNotify\n");
+	 c = find_client(ev.xunmap.window);
+	 if (!c) break;
+	 c->mappable = False;
+	 if (c == mapped_client)
+	    mapped_client = 0;
+	 break;
+
+      case CreateNotify: 
+	 fprintf(stderr, "CreateNotify\n");
+	 c = malloc(sizeof(*c));
+	 c->next = clients;
+	 c->windowid = ev.xcreatewindow.window;
+	 c->mappable = False;
+	 clients = c;
+	 break;
+
+      case DestroyNotify:
+	 fprintf(stderr, "DestroyNotify\n");
+	 c = find_client(ev.xdestroywindow.window);
+	 if (!c) break;
+	 if (c == clients)
+	    clients = c->next;
+	 else {
+	    struct client *t;
+	    for (t = clients ; t->next != c ; t = t->next)
+	       ;
+	    t->next = c->next;
+	 }
+
+	 if (c == mapped_client) 
+	    mapped_client = 0;
+
+	 free(c);
+	 break;
+
+      default:
+	 break;
+      }
+
+      /* Search for first mappable client if none already mapped.
+       */
+      if (!mapped_client) {
+	 for (c = clients ; c ; c = c->next) {
+	    if (c->mappable) {
+	       XMapWindow( dpy, c->windowid );
+	       mapped_client = c;
+	       break;
+	    }
+	 }
+      }
+   }
+
+   XCloseDisplay( dpy );
+
+   return 0;
+}

progs/tests/sample_server2.c

@@ -0,0 +1,227 @@
+/* $Id: sample_server2.c,v 1.1.2.4 2003/04/29 09:41:01 keithw Exp $ */
+
+/*
+ * Sample server that just keeps first available window mapped.
+ * 
+ * It also reads and echos anything that happens on stdin as an
+ * example of tracking events from sources other than miniglx clients.
+ * 
+ * It reads & writes without blocking, so that eg. piping a lot of
+ * text to stdin and then hitting 'ctrl-S' on the output stream won't
+ * cause it to stop handling miniglx events.
+ *
+ * See select_tut in the linux manual pages for a good overview of the 
+ * select(2) system call.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <GL/gl.h>
+#include <GL/miniglx.h>
+#include <errno.h>
+#include <assert.h>
+
+struct client {
+   struct client *next;
+   Window windowid;
+   int mappable;
+};
+
+struct client *clients = 0, *mapped_client = 0;
+
+#define BUFSZ 4096
+char rbuf[BUFSZ];
+int rbuf_count;
+
+
+static struct client *find_client( Window id )
+{
+   struct client *c;
+
+   for (c = clients ; c ; c = c->next)
+      if (c->windowid == id)
+	 return c;
+
+   return 0;
+}
+
+int main( int argc, char *argv[] )
+{
+   Display *dpy;
+   XEvent ev;
+   int autostart = 0;
+
+   if (argc == 2 && strcmp(argv[1], "-autostart") == 0)
+      autostart = 1;
+
+   dpy = __miniglx_StartServer(NULL);
+   if (!dpy) {
+      fprintf(stderr, "Error: __miniglx_StartServer failed\n");
+      return 1;
+   }
+
+   /* How is vt switching communicated through the XNextEvent interface?
+    */
+   while (1) {
+      int r, n;
+      struct timeval tv;
+      fd_set rfds, wfds;
+      int bored = 0;
+
+      FD_ZERO(&rfds);
+      FD_ZERO(&wfds);
+      tv.tv_sec = 1;
+      tv.tv_usec = 0;
+
+      if (rbuf_count) {
+	 FD_SET( 1, &wfds );	/* notify when we can write out buffer */
+	 n = 1;
+      }
+      else {
+	 FD_SET( 0, &rfds );	/* else notify when new data to read */
+	 n = 0;
+      }
+
+      /* __miniglx_Select waits until any of these file groups becomes
+       * readable/writable/etc (like regular select), until timeout
+       * expires (like regular select), until a signal is received
+       * (like regular select) or until an event is available for
+       * XCheckMaskEvent().
+       */
+      r = __miniglx_Select( dpy, n+1, &rfds, &wfds, 0, &tv );
+
+      /* This can happen if select() is interrupted by a signal:
+       */
+      if (r < 0 && errno != EINTR && errno != EAGAIN) {
+	 perror ("select()");
+	 exit (1);
+      }
+
+      if (tv.tv_sec == 0 && tv.tv_usec == 0)
+	 bored = 1;
+
+      /* Check and handle events on our local file descriptors
+       */
+      if (FD_ISSET( 0, &rfds )) {
+	 /* Something on stdin */	 
+	 assert(rbuf_count == 0);
+	 r = read(0, rbuf, BUFSZ);	 
+	 if (r < 1) {
+	    perror("read");	
+	    abort();
+	 }
+	 rbuf_count = r;
+      }
+
+      if (FD_ISSET( 1, &wfds )) {
+	 /* Can write to stdout */
+	 assert(rbuf_count > 0);
+	 r = write(1, rbuf, rbuf_count);	 
+	 if (r < 1) {
+	    perror("write");
+	    abort();
+	 }
+	 rbuf_count -= r;
+	 if (rbuf_count) 
+	    memmove(rbuf + r, rbuf, rbuf_count);
+      }
+
+
+      /* Check and handle events generated by miniglx:
+       */
+      while (XCheckMaskEvent( dpy, ~0, &ev )) {
+	 struct client *c;
+	 bored = 0;
+
+	 fprintf(stderr, "Received event %d\n", ev.type);
+
+	 switch (ev.type) {
+	 case CreateNotify: 
+	    fprintf(stderr, "CreateNotify -- new client\n");
+	    c = malloc(sizeof(*c));
+	    c->next = clients;
+	    c->windowid = ev.xcreatewindow.window;
+	    c->mappable = False;
+	    clients = c;
+	    break;
+
+	 case DestroyNotify:
+	    fprintf(stderr, "DestroyNotify\n");
+	    c = find_client(ev.xdestroywindow.window);
+	    if (!c) break;
+	    if (c == clients)
+	       clients = c->next;
+	    else {
+	       struct client *t;
+	       for (t = clients ; t->next != c ; t = t->next)
+		  ;
+	       t->next = c->next;
+	    }
+
+	    if (c == mapped_client) 
+	       mapped_client = 0;
+
+	    free(c);
+	    break;
+
+	 case MapRequest:
+	    fprintf(stderr, "MapRequest\n");
+	    c = find_client(ev.xmaprequest.window);
+	    if (!c) break;
+	    c->mappable = True;
+	    break;
+
+	 case UnmapNotify:
+	    fprintf(stderr, "UnmapNotify\n");
+	    c = find_client(ev.xunmap.window);
+	    if (!c) break;
+	    c->mappable = False;
+	    if (c == mapped_client)
+	       mapped_client = 0;
+	    break;
+
+	 default:
+	    break;
+	 }
+      }
+
+
+      /* Search for first mappable client if none already mapped.
+       */
+      if (!mapped_client) {
+	 struct client *c;
+	 for (c = clients ; c ; c = c->next) {
+	    if (c->mappable) {
+	       XMapWindow( dpy, c->windowid );
+	       mapped_client = c;
+	       break;
+	    }
+	 }
+	 if (!clients && autostart) {
+	    system("nohup ./texline &");
+	    system("nohup ./manytex &");
+	 }
+      }
+      else if (bored) {
+	 struct client *c;
+	 /* bored of mapped client now, let's try & find another one */
+	 for (c = mapped_client->next ; c && !c->mappable ; c = c->next)
+	    ;
+	 if (!c)
+	    for (c = clients ; c && !c->mappable ; c = c->next)
+	       ;
+	 if (c && c != mapped_client) {
+	    XUnmapWindow( dpy, mapped_client->windowid );
+	    XMapWindow( dpy, c->windowid );
+	    mapped_client = c;
+	 }
+	 else 
+	    fprintf(stderr, "I'm bored!\n");
+      }
+   }
+
+   XCloseDisplay( dpy );
+
+   return 0;
+}

progs/tests/texline.c

@@ -1,4 +1,4 @@
-/* $Id: texline.c,v 1.4 2002/08/17 00:30:36 brianp Exp $ */
+/* $Id: texline.c,v 1.4.6.2 2003/05/01 06:54:21 keithw Exp $ */
 
 /*
  * Test textured lines.
@@ -17,7 +17,7 @@
 #define TEXTURE_FILE "../images/girl.rgb"
 
 static GLboolean Antialias = GL_FALSE;
-static GLboolean Animate = GL_FALSE;
+static GLboolean Animate = GL_TRUE;
 static GLint Texture = 1;
 static GLboolean Stipple = GL_FALSE;
 static GLfloat LineWidth = 1.0;
@@ -59,7 +59,7 @@ static void Display( void )
             y = t * 2.0 - 1.0;
             if (!Texture)
                glColor3f(1, 0, 1);
-            glMultiTexCoord2fARB(GL_TEXTURE1_ARB, t, s);
+/*             glMultiTexCoord2fARB(GL_TEXTURE1_ARB, t, s); */
             glTexCoord2f(s, t);
             glVertex2f(x, y);
          }
@@ -73,12 +73,12 @@ static void Display( void )
          if (!Texture)
             glColor3f(1, 0, 1);
          glTexCoord2f(t, 0.0);
-         glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 0.0, t);
+/*          glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 0.0, t); */
          glVertex2f(x, -1.0);
          if (!Texture)
             glColor3f(0, 1, 0);
          glTexCoord2f(t, 1.0);
-         glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 1.0, t);
+/*          glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 1.0, t); */
          glVertex2f(x, 1.0);
       }
       glEnd();
@@ -127,22 +127,22 @@ static void Key( unsigned char key, int x, int y )
          if (Texture > 2)
             Texture = 0;
          if (Texture == 0) {
-            glActiveTextureARB(GL_TEXTURE0_ARB);
-            glDisable(GL_TEXTURE_2D);
-            glActiveTextureARB(GL_TEXTURE1_ARB);
+/*             glActiveTextureARB(GL_TEXTURE0_ARB); */
             glDisable(GL_TEXTURE_2D);
+/*             glActiveTextureARB(GL_TEXTURE1_ARB); */
+/*             glDisable(GL_TEXTURE_2D); */
          }
          else if (Texture == 1) {
-            glActiveTextureARB(GL_TEXTURE0_ARB);
+/*             glActiveTextureARB(GL_TEXTURE0_ARB); */
             glEnable(GL_TEXTURE_2D);
-            glActiveTextureARB(GL_TEXTURE1_ARB);
-            glDisable(GL_TEXTURE_2D);
+/*             glActiveTextureARB(GL_TEXTURE1_ARB); */
+/*             glDisable(GL_TEXTURE_2D); */
          }
          else {
-            glActiveTextureARB(GL_TEXTURE0_ARB);
-            glEnable(GL_TEXTURE_2D);
-            glActiveTextureARB(GL_TEXTURE1_ARB);
+/*             glActiveTextureARB(GL_TEXTURE0_ARB); */
             glEnable(GL_TEXTURE_2D);
+/*             glActiveTextureARB(GL_TEXTURE1_ARB); */
+/*             glEnable(GL_TEXTURE_2D); */
          }
          break;
       case 'w':
@@ -212,8 +212,8 @@ static void SpecialKey( int key, int x, int y )
 static void Init( int argc, char *argv[] )
 {
    GLuint u;
-   for (u = 0; u < 2; u++) {
-      glActiveTextureARB(GL_TEXTURE0_ARB + u);
+   for (u = 0; u < 1; u++) {
+/*       glActiveTextureARB(GL_TEXTURE0_ARB + u); */
       glBindTexture(GL_TEXTURE_2D, 10+u);
       if (u == 0)
          glEnable(GL_TEXTURE_2D);

src/glu/mini/.cvsignore

@@ -0,0 +1,7 @@
+.deps
+.libs
+Makefile.in
+*.lo
+*.o
+*.la
+depend

src/glu/mini/Makefile

@@ -0,0 +1,46 @@
+
+
+MESA = ../..
+default: libGLU.so.1.1 install 
+include $(MESA)/Makefile.include
+
+LIBDIR = $(MESA)/lib
+
+INCLUDES = -I$(MESA)/include 
+CFLAGS = -c -g $(INCLUDES) -MD 
+
+SOURCES = glu.c \
+	mipmap.c \
+	nurbs.c \
+	polytest.c \
+	project.c \
+	quadric.c \
+	tess.c \
+	tesselat.c
+
+
+OBJS = $(addsuffix .o,$(basename $(SOURCES)))
+
+LIBS=-L$(MESA)/lib -lGL -lm
+
+
+
+
+
+libGLU.so.1.1: $(OBJS) Makefile
+	gcc -shared -Wl,-soname,libGLU.so -Wl,-Bsymbolic $(OBJS) $(LIBS) -o $@ 
+
+install:
+	rm -f $(MESA)/lib/libGLU.so*
+	install -D libGLU.so.1.1 $(MESA)/lib/libGLU.so.1.1
+	ln -s libGLU.so.1.1 $(MESA)/lib/libGLU.so.1
+	ln -s libGLU.so.1 $(MESA)/lib/libGLU.so
+
+
+clean: clean_here
+
+clean_here:
+	rm -f ../lib/libGLU.so*
+
+
+-include $(SOURCES:.c=.d)

src/glu/mini/all.h

@@ -0,0 +1,55 @@
+/* $Id: all.h,v 1.1.2.1 2003/03/21 13:02:08 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * This file includes all .h files needed for the GLU source code for
+ * the purpose of precompiled headers.
+ *
+ * If the preprocessor symbol PCH is defined at compile time then each
+ * of the .c files will #include "all.h" only, instead of a bunch of
+ * individual .h files.
+ */
+
+
+#ifndef GLU_ALL_H
+#define GLU_ALL_H
+
+
+#ifndef PC_HEADER
+This is an error.  all.h should be included only if PCH is defined.
+#endif
+
+
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "GL/gl.h"
+#include "GL/glu.h"
+#include "gluP.h"
+#include "nurbs.h"
+#include "tess.h"
+
+
+#endif /*GLU_ALL_H */

src/glu/mini/glu.c

@@ -0,0 +1,417 @@
+/* $Id: glu.c,v 1.1.2.1 2003/03/21 13:02:08 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.5
+ * Copyright (C) 1995-2001  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "gluP.h"
+#endif
+
+
+/*
+ * Miscellaneous utility functions
+ */
+
+
+#ifndef M_PI
+#define M_PI 3.1415926536
+#endif
+#define EPS 0.00001
+
+#ifndef GLU_INCOMPATIBLE_GL_VERSION
+#define GLU_INCOMPATIBLE_GL_VERSION     100903
+#endif
+
+
+void GLAPIENTRY
+gluLookAt(GLdouble eyex, GLdouble eyey, GLdouble eyez,
+	  GLdouble centerx, GLdouble centery, GLdouble centerz,
+	  GLdouble upx, GLdouble upy, GLdouble upz)
+{
+   GLfloat m[16];
+   GLfloat x[3], y[3], z[3];
+   GLfloat mag;
+
+   /* Make rotation matrix */
+
+   /* Z vector */
+   z[0] = eyex - centerx;
+   z[1] = eyey - centery;
+   z[2] = eyez - centerz;
+   mag = sqrt(z[0] * z[0] + z[1] * z[1] + z[2] * z[2]);
+   if (mag) {			/* mpichler, 19950515 */
+      z[0] /= mag;
+      z[1] /= mag;
+      z[2] /= mag;
+   }
+
+   /* Y vector */
+   y[0] = upx;
+   y[1] = upy;
+   y[2] = upz;
+
+   /* X vector = Y cross Z */
+   x[0] = y[1] * z[2] - y[2] * z[1];
+   x[1] = -y[0] * z[2] + y[2] * z[0];
+   x[2] = y[0] * z[1] - y[1] * z[0];
+
+   /* Recompute Y = Z cross X */
+   y[0] = z[1] * x[2] - z[2] * x[1];
+   y[1] = -z[0] * x[2] + z[2] * x[0];
+   y[2] = z[0] * x[1] - z[1] * x[0];
+
+   /* mpichler, 19950515 */
+   /* cross product gives area of parallelogram, which is < 1.0 for
+    * non-perpendicular unit-length vectors; so normalize x, y here
+    */
+
+   mag = sqrt(x[0] * x[0] + x[1] * x[1] + x[2] * x[2]);
+   if (mag) {
+      x[0] /= mag;
+      x[1] /= mag;
+      x[2] /= mag;
+   }
+
+   mag = sqrt(y[0] * y[0] + y[1] * y[1] + y[2] * y[2]);
+   if (mag) {
+      y[0] /= mag;
+      y[1] /= mag;
+      y[2] /= mag;
+   }
+
+#define M(row,col)  m[col*4+row]
+   M(0, 0) = x[0];
+   M(0, 1) = x[1];
+   M(0, 2) = x[2];
+   M(0, 3) = 0.0;
+   M(1, 0) = y[0];
+   M(1, 1) = y[1];
+   M(1, 2) = y[2];
+   M(1, 3) = 0.0;
+   M(2, 0) = z[0];
+   M(2, 1) = z[1];
+   M(2, 2) = z[2];
+   M(2, 3) = 0.0;
+   M(3, 0) = 0.0;
+   M(3, 1) = 0.0;
+   M(3, 2) = 0.0;
+   M(3, 3) = 1.0;
+#undef M
+   glMultMatrixf(m);
+
+   /* Translate Eye to Origin */
+   glTranslatef(-eyex, -eyey, -eyez);
+
+}
+
+
+
+void GLAPIENTRY
+gluOrtho2D(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top)
+{
+   glOrtho(left, right, bottom, top, -1.0, 1.0);
+}
+
+
+
+static void
+frustum(GLfloat left, GLfloat right,
+        GLfloat bottom, GLfloat top, 
+        GLfloat nearval, GLfloat farval)
+{
+   GLfloat x, y, a, b, c, d;
+   GLfloat m[16];
+
+   x = (2.0 * nearval) / (right - left);
+   y = (2.0 * nearval) / (top - bottom);
+   a = (right + left) / (right - left);
+   b = (top + bottom) / (top - bottom);
+   c = -(farval + nearval) / ( farval - nearval);
+   d = -(2.0 * farval * nearval) / (farval - nearval);
+
+#define M(row,col)  m[col*4+row]
+   M(0,0) = x;     M(0,1) = 0.0F;  M(0,2) = a;      M(0,3) = 0.0F;
+   M(1,0) = 0.0F;  M(1,1) = y;     M(1,2) = b;      M(1,3) = 0.0F;
+   M(2,0) = 0.0F;  M(2,1) = 0.0F;  M(2,2) = c;      M(2,3) = d;
+   M(3,0) = 0.0F;  M(3,1) = 0.0F;  M(3,2) = -1.0F;  M(3,3) = 0.0F;
+#undef M
+
+   glMultMatrixf(m);
+}
+
+
+void GLAPIENTRY
+gluPerspective(GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar)
+{
+   GLfloat xmin, xmax, ymin, ymax;
+
+   ymax = zNear * tan(fovy * M_PI / 360.0);
+   ymin = -ymax;
+   xmin = ymin * aspect;
+   xmax = ymax * aspect;
+
+   /* don't call glFrustum() because of error semantics (covglu) */
+   frustum(xmin, xmax, ymin, ymax, zNear, zFar);
+}
+
+
+
+void GLAPIENTRY
+gluPickMatrix(GLdouble x, GLdouble y,
+	      GLdouble width, GLdouble height, GLint viewport[4])
+{
+   GLfloat m[16];
+   GLfloat sx, sy;
+   GLfloat tx, ty;
+
+   sx = viewport[2] / width;
+   sy = viewport[3] / height;
+   tx = (viewport[2] + 2.0 * (viewport[0] - x)) / width;
+   ty = (viewport[3] + 2.0 * (viewport[1] - y)) / height;
+
+#define M(row,col)  m[col*4+row]
+   M(0, 0) = sx;
+   M(0, 1) = 0.0;
+   M(0, 2) = 0.0;
+   M(0, 3) = tx;
+   M(1, 0) = 0.0;
+   M(1, 1) = sy;
+   M(1, 2) = 0.0;
+   M(1, 3) = ty;
+   M(2, 0) = 0.0;
+   M(2, 1) = 0.0;
+   M(2, 2) = 1.0;
+   M(2, 3) = 0.0;
+   M(3, 0) = 0.0;
+   M(3, 1) = 0.0;
+   M(3, 2) = 0.0;
+   M(3, 3) = 1.0;
+#undef M
+
+   glMultMatrixf(m);
+}
+
+
+
+const GLubyte *GLAPIENTRY
+gluErrorString(GLenum errorCode)
+{
+   static char *tess_error[] = {
+      "missing gluBeginPolygon",
+      "missing gluBeginContour",
+      "missing gluEndPolygon",
+      "missing gluEndContour",
+      "misoriented or self-intersecting loops",
+      "coincident vertices",
+      "colinear vertices",
+      "FIST recovery process fatal error"
+   };
+   static char *nurbs_error[] = {
+      "spline order un-supported",
+      "too few knots",
+      "valid knot range is empty",
+      "decreasing knot sequence knot",
+      "knot multiplicity greater than order of spline",
+      "endcurve() must follow bgncurve()",
+      "bgncurve() must precede endcurve()",
+      "missing or extra geometric data",
+      "can't draw pwlcurves",
+      "missing bgncurve()",
+      "missing bgnsurface()",
+      "endtrim() must precede endsurface()",
+      "bgnsurface() must precede endsurface()",
+      "curve of improper type passed as trim curve",
+      "bgnsurface() must precede bgntrim()",
+      "endtrim() must follow bgntrim()",
+      "bgntrim() must precede endtrim()",
+      "invalid or missing trim curve",
+      "bgntrim() must precede pwlcurve()",
+      "pwlcurve referenced twice",
+      "pwlcurve and nurbscurve mixed",
+      "improper usage of trim data type",
+      "nurbscurve referenced twice",
+      "nurbscurve and pwlcurve mixed",
+      "nurbssurface referenced twice",
+      "invalid property",
+      "endsurface() must follow bgnsurface()",
+      "misoriented trim curves",
+      "intersecting trim curves",
+      "UNUSED",
+      "unconnected trim curves",
+      "unknown knot error",
+      "negative vertex count encountered",
+      "negative byte-stride encountered",
+      "unknown type descriptor",
+      "null control array or knot vector",
+      "duplicate point on pwlcurve"
+   };
+
+   /* GL Errors */
+   if (errorCode == GL_NO_ERROR) {
+      return (GLubyte *) "no error";
+   }
+   else if (errorCode == GL_INVALID_VALUE) {
+      return (GLubyte *) "invalid value";
+   }
+   else if (errorCode == GL_INVALID_ENUM) {
+      return (GLubyte *) "invalid enum";
+   }
+   else if (errorCode == GL_INVALID_OPERATION) {
+      return (GLubyte *) "invalid operation";
+   }
+   else if (errorCode == GL_STACK_OVERFLOW) {
+      return (GLubyte *) "stack overflow";
+   }
+   else if (errorCode == GL_STACK_UNDERFLOW) {
+      return (GLubyte *) "stack underflow";
+   }
+   else if (errorCode == GL_OUT_OF_MEMORY) {
+      return (GLubyte *) "out of memory";
+   }
+   /* GLU Errors */
+   else if (errorCode == GLU_NO_ERROR) {
+      return (GLubyte *) "no error";
+   }
+   else if (errorCode == GLU_INVALID_ENUM) {
+      return (GLubyte *) "invalid enum";
+   }
+   else if (errorCode == GLU_INVALID_VALUE) {
+      return (GLubyte *) "invalid value";
+   }
+   else if (errorCode == GLU_OUT_OF_MEMORY) {
+      return (GLubyte *) "out of memory";
+   }
+   else if (errorCode == GLU_INCOMPATIBLE_GL_VERSION) {
+      return (GLubyte *) "incompatible GL version";
+   }
+   else if (errorCode >= GLU_TESS_ERROR1 && errorCode <= GLU_TESS_ERROR8) {
+      return (GLubyte *) tess_error[errorCode - GLU_TESS_ERROR1];
+   }
+   else if (errorCode >= GLU_NURBS_ERROR1 && errorCode <= GLU_NURBS_ERROR37) {
+      return (GLubyte *) nurbs_error[errorCode - GLU_NURBS_ERROR1];
+   }
+   else {
+      return NULL;
+   }
+}
+
+
+
+/*
+ * New in GLU 1.1
+ */
+
+const GLubyte *GLAPIENTRY
+gluGetString(GLenum name)
+{
+   static char *extensions = "GL_EXT_abgr";
+   static char *version = "1.1 Mesa 3.5";
+
+   switch (name) {
+   case GLU_EXTENSIONS:
+      return (GLubyte *) extensions;
+   case GLU_VERSION:
+      return (GLubyte *) version;
+   default:
+      return NULL;
+   }
+}
+
+
+
+#if 0				/* gluGetProcAddressEXT not finalized yet! */
+
+#ifdef __cplusplus
+   /* for BeOS R4.5 */
+void GLAPIENTRY(*gluGetProcAddressEXT(const GLubyte * procName)) (...)
+#else
+void (GLAPIENTRY * gluGetProcAddressEXT(const GLubyte * procName)) ()
+#endif
+{
+   struct proc
+   {
+      const char *name;
+      void *address;
+   };
+   static struct proc procTable[] = {
+      {"gluGetProcAddressEXT", (void *) gluGetProcAddressEXT},	/* me! */
+
+      /* new 1.1 functions */
+      {"gluGetString", (void *) gluGetString},
+
+      /* new 1.2 functions */
+      {"gluTessBeginPolygon", (void *) gluTessBeginPolygon},
+      {"gluTessBeginContour", (void *) gluTessBeginContour},
+      {"gluTessEndContour", (void *) gluTessEndContour},
+      {"gluTessEndPolygon", (void *) gluTessEndPolygon},
+      {"gluGetTessProperty", (void *) gluGetTessProperty},
+
+      /* new 1.3 functions */
+
+      {NULL, NULL}
+   };
+   GLuint i;
+
+   for (i = 0; procTable[i].address; i++) {
+      if (strcmp((const char *) procName, procTable[i].name) == 0)
+	 return (void (GLAPIENTRY *) ()) procTable[i].address;
+   }
+
+   return NULL;
+}
+
+#endif
+
+
+
+/*
+ * New in GLU 1.3
+ */
+#ifdef GLU_VERSION_1_3
+GLboolean GLAPIENTRY
+gluCheckExtension(const GLubyte *extName, const GLubyte * extString)
+{
+   assert(extName);
+   assert(extString);
+   {
+      const int len = strlen((const char *) extName);
+      const char *start = (const char *) extString;
+
+      while (1) {
+	 const char *c = strstr(start, (const char *) extName);
+	 if (!c)
+	    return GL_FALSE;
+
+	 if ((c == start || c[-1] == ' ') && (c[len] == ' ' || c[len] == 0))
+	    return GL_TRUE;
+
+	 start = c + len;
+      }
+   }
+}
+#endif

src/glu/mini/gluP.h

@@ -0,0 +1,142 @@
+/* $Id: gluP.h,v 1.1.2.1 2003/03/21 13:02:10 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * This file allows the GLU code to be compiled either with the Mesa
+ * headers or with the real OpenGL headers.
+ */
+
+
+#ifndef GLUP_H
+#define GLUP_H
+
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+#include <string.h>
+
+
+#if defined(_WIN32) && !defined(__WIN32__)
+#	define __WIN32__
+#endif
+
+#if !defined(OPENSTEP) && (defined(__WIN32__) || defined(__CYGWIN__))
+#  pragma warning( disable : 4068 ) /* unknown pragma */
+#  pragma warning( disable : 4710 ) /* function 'foo' not inlined */
+#  pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
+#  pragma warning( disable : 4127 ) /* conditional expression is constant */
+#  if defined(MESA_MINWARN)
+#    pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
+#    pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
+#    pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
+#    pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
+#    pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
+#  endif
+#  if defined(_MSC_VER) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
+#    define GLAPI __declspec(dllexport)
+#    define WGLAPI __declspec(dllexport)
+#  elif defined(_MSC_VER) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
+#    define GLAPI __declspec(dllimport)
+#    define WGLAPI __declspec(dllimport)
+#  else /* for use with static link lib build of Win32 edition only */
+#    define GLAPI extern
+#    define WGLAPI __declspec(dllimport)
+#  endif /* _STATIC_MESA support */
+#  define GLAPIENTRY __stdcall
+#  define GLAPIENTRYP __stdcall *
+#  define GLCALLBACK __stdcall
+#  define GLCALLBACKP __stdcall *
+#  if defined(__CYGWIN__)
+#    define GLCALLBACKPCAST *
+#  else
+#    define GLCALLBACKPCAST __stdcall *
+#  endif
+#  define GLWINAPI __stdcall
+#  define GLWINAPIV __cdecl
+#else
+/* non-Windows compilation */
+#  define GLAPI extern
+#  define GLAPIENTRY
+#  define GLAPIENTRYP *
+#  define GLCALLBACK
+#  define GLCALLBACKP *
+#  define GLCALLBACKPCAST *
+#  define GLWINAPI
+#  define GLWINAPIV
+#endif /* WIN32 / CYGWIN bracket */
+
+/* compatability guard so we don't need to change client code */
+
+#if defined(_WIN32) && !defined(_WINDEF_) && !defined(_GNU_H_WINDOWS32_BASE) && !defined(OPENSTEP)
+#	define CALLBACK GLCALLBACK
+typedef int (GLAPIENTRY *PROC)();
+typedef void *HGLRC;
+typedef void *HDC;
+typedef unsigned long COLORREF;
+#endif
+
+#if defined(_WIN32) && !defined(_WINGDI_) && !defined(_GNU_H_WINDOWS32_DEFINES) && !defined(OPENSTEP)
+#	define WGL_FONT_LINES      0
+#	define WGL_FONT_POLYGONS   1
+#ifndef _GNU_H_WINDOWS32_FUNCTIONS
+#	ifdef UNICODE
+#		define wglUseFontBitmaps  wglUseFontBitmapsW
+#		define wglUseFontOutlines  wglUseFontOutlinesW
+#	else
+#		define wglUseFontBitmaps  wglUseFontBitmapsA
+#		define wglUseFontOutlines  wglUseFontOutlinesA
+#	endif /* !UNICODE */
+#endif /* _GNU_H_WINDOWS32_FUNCTIONS */
+typedef struct tagLAYERPLANEDESCRIPTOR LAYERPLANEDESCRIPTOR, *PLAYERPLANEDESCRIPTOR, *LPLAYERPLANEDESCRIPTOR;
+typedef struct _GLYPHMETRICSFLOAT GLYPHMETRICSFLOAT, *PGLYPHMETRICSFLOAT, *LPGLYPHMETRICSFLOAT;
+typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESCRIPTOR, *LPPIXELFORMATDESCRIPTOR;
+#include <gl/mesa_wgl.h>
+#endif
+
+
+
+#ifndef GLU_TESS_ERROR9
+   /* If we're using the real OpenGL header files... */
+#  define GLU_TESS_ERROR9	100159
+#endif
+
+
+#define GLU_NO_ERROR		GL_NO_ERROR
+
+
+/* for Sun: */
+#ifdef SUNOS4
+#define MEMCPY( DST, SRC, BYTES) \
+	memcpy( (char *) (DST), (char *) (SRC), (int) (BYTES) )
+#else
+#define MEMCPY( DST, SRC, BYTES) \
+	memcpy( (void *) (DST), (void *) (SRC), (size_t) (BYTES) )
+#endif
+
+
+#ifndef NULL
+#  define NULL 0
+#endif
+
+
+#endif

src/glu/mini/mipmap.c

@@ -0,0 +1,764 @@
+/* $Id: mipmap.c,v 1.1.2.1 2003/03/21 13:02:12 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.4
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "gluP.h"
+#endif
+
+
+/*
+ * Compute ceiling of integer quotient of A divided by B:
+ */
+#define CEILING( A, B )  ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 )
+
+
+
+#ifdef EPSILON
+#undef EPSILON
+#endif
+#define EPSILON 0.001
+
+
+/* To work around optimizer bug in MSVC4.1 */
+#if defined(__WIN32__) && !defined(OPENSTEP)
+void
+dummy(GLuint j, GLuint k)
+{
+}
+#else
+#define dummy(J, K)
+#endif
+
+
+GLint GLAPIENTRY
+gluScaleImage(GLenum format,
+	      GLsizei widthin, GLsizei heightin,
+	      GLenum typein, const void *datain,
+	      GLsizei widthout, GLsizei heightout,
+	      GLenum typeout, void *dataout)
+{
+   GLint components, i, j, k;
+   GLfloat *tempin, *tempout, f;
+   GLfloat sx, sy;
+   GLint unpackrowlength, unpackalignment, unpackskiprows, unpackskippixels;
+   GLint packrowlength, packalignment, packskiprows, packskippixels;
+   GLint sizein, sizeout;
+   GLint rowstride, rowlen;
+
+
+   /* Determine number of components per pixel */
+   switch (format) {
+   case GL_COLOR_INDEX:
+   case GL_STENCIL_INDEX:
+   case GL_DEPTH_COMPONENT:
+   case GL_RED:
+   case GL_GREEN:
+   case GL_BLUE:
+   case GL_ALPHA:
+   case GL_LUMINANCE:
+      components = 1;
+      break;
+   case GL_LUMINANCE_ALPHA:
+      components = 2;
+      break;
+   case GL_RGB:
+   case GL_BGR:
+      components = 3;
+      break;
+   case GL_RGBA:
+   case GL_BGRA:
+#ifdef GL_EXT_abgr
+   case GL_ABGR_EXT:
+#endif
+      components = 4;
+      break;
+   default:
+      return GLU_INVALID_ENUM;
+   }
+
+   /* Determine bytes per input datum */
+   switch (typein) {
+   case GL_UNSIGNED_BYTE:
+      sizein = sizeof(GLubyte);
+      break;
+   case GL_BYTE:
+      sizein = sizeof(GLbyte);
+      break;
+   case GL_UNSIGNED_SHORT:
+      sizein = sizeof(GLushort);
+      break;
+   case GL_SHORT:
+      sizein = sizeof(GLshort);
+      break;
+   case GL_UNSIGNED_INT:
+      sizein = sizeof(GLuint);
+      break;
+   case GL_INT:
+      sizein = sizeof(GLint);
+      break;
+   case GL_FLOAT:
+      sizein = sizeof(GLfloat);
+      break;
+   case GL_BITMAP:
+      /* not implemented yet */
+   default:
+      return GL_INVALID_ENUM;
+   }
+
+   /* Determine bytes per output datum */
+   switch (typeout) {
+   case GL_UNSIGNED_BYTE:
+      sizeout = sizeof(GLubyte);
+      break;
+   case GL_BYTE:
+      sizeout = sizeof(GLbyte);
+      break;
+   case GL_UNSIGNED_SHORT:
+      sizeout = sizeof(GLushort);
+      break;
+   case GL_SHORT:
+      sizeout = sizeof(GLshort);
+      break;
+   case GL_UNSIGNED_INT:
+      sizeout = sizeof(GLuint);
+      break;
+   case GL_INT:
+      sizeout = sizeof(GLint);
+      break;
+   case GL_FLOAT:
+      sizeout = sizeof(GLfloat);
+      break;
+   case GL_BITMAP:
+      /* not implemented yet */
+   default:
+      return GL_INVALID_ENUM;
+   }
+
+   /* Get glPixelStore state */
+   glGetFloatv(GL_UNPACK_ROW_LENGTH, &f); unpackrowlength = (int)f;
+   glGetFloatv(GL_UNPACK_ALIGNMENT, &f); unpackalignment = (int)f;
+   glGetFloatv(GL_UNPACK_SKIP_ROWS, &f); unpackskiprows = (int)f;
+   glGetFloatv(GL_UNPACK_SKIP_PIXELS, &f); unpackskippixels = (int)f;
+   glGetFloatv(GL_PACK_ROW_LENGTH, &f); packrowlength = (int)f;
+   glGetFloatv(GL_PACK_ALIGNMENT, &f); packalignment = (int)f;
+   glGetFloatv(GL_PACK_SKIP_ROWS, &f); packskiprows = (int)f;
+   glGetFloatv(GL_PACK_SKIP_PIXELS, &f); packskippixels = (int)f;
+
+   /* Allocate storage for intermediate images */
+   tempin = (GLfloat *) malloc(widthin * heightin
+			       * components * sizeof(GLfloat));
+   if (!tempin) {
+      return GLU_OUT_OF_MEMORY;
+   }
+   tempout = (GLfloat *) malloc(widthout * heightout
+				* components * sizeof(GLfloat));
+   if (!tempout) {
+      free(tempin);
+      return GLU_OUT_OF_MEMORY;
+   }
+
+
+   /*
+    * Unpack the pixel data and convert to floating point
+    */
+
+   if (unpackrowlength > 0) {
+      rowlen = unpackrowlength;
+   }
+   else {
+      rowlen = widthin;
+   }
+   if (sizein >= unpackalignment) {
+      rowstride = components * rowlen;
+   }
+   else {
+      rowstride = unpackalignment / sizein
+	 * CEILING(components * rowlen * sizein, unpackalignment);
+   }
+
+   switch (typein) {
+   case GL_UNSIGNED_BYTE:
+      k = 0;
+      for (i = 0; i < heightin; i++) {
+	 GLubyte *ubptr = (GLubyte *) datain
+	    + i * rowstride
+	    + unpackskiprows * rowstride + unpackskippixels * components;
+	 for (j = 0; j < widthin * components; j++) {
+	    dummy(j, k);
+	    tempin[k++] = (GLfloat) * ubptr++;
+	 }
+      }
+      break;
+   case GL_BYTE:
+      k = 0;
+      for (i = 0; i < heightin; i++) {
+	 GLbyte *bptr = (GLbyte *) datain
+	    + i * rowstride
+	    + unpackskiprows * rowstride + unpackskippixels * components;
+	 for (j = 0; j < widthin * components; j++) {
+	    dummy(j, k);
+	    tempin[k++] = (GLfloat) * bptr++;
+	 }
+      }
+      break;
+   case GL_UNSIGNED_SHORT:
+      k = 0;
+      for (i = 0; i < heightin; i++) {
+	 GLushort *usptr = (GLushort *) datain
+	    + i * rowstride
+	    + unpackskiprows * rowstride + unpackskippixels * components;
+	 for (j = 0; j < widthin * components; j++) {
+	    dummy(j, k);
+	    tempin[k++] = (GLfloat) * usptr++;
+	 }
+      }
+      break;
+   case GL_SHORT:
+      k = 0;
+      for (i = 0; i < heightin; i++) {
+	 GLshort *sptr = (GLshort *) datain
+	    + i * rowstride
+	    + unpackskiprows * rowstride + unpackskippixels * components;
+	 for (j = 0; j < widthin * components; j++) {
+	    dummy(j, k);
+	    tempin[k++] = (GLfloat) * sptr++;
+	 }
+      }
+      break;
+   case GL_UNSIGNED_INT:
+      k = 0;
+      for (i = 0; i < heightin; i++) {
+	 GLuint *uiptr = (GLuint *) datain
+	    + i * rowstride
+	    + unpackskiprows * rowstride + unpackskippixels * components;
+	 for (j = 0; j < widthin * components; j++) {
+	    dummy(j, k);
+	    tempin[k++] = (GLfloat) * uiptr++;
+	 }
+      }
+      break;
+   case GL_INT:
+      k = 0;
+      for (i = 0; i < heightin; i++) {
+	 GLint *iptr = (GLint *) datain
+	    + i * rowstride
+	    + unpackskiprows * rowstride + unpackskippixels * components;
+	 for (j = 0; j < widthin * components; j++) {
+	    dummy(j, k);
+	    tempin[k++] = (GLfloat) * iptr++;
+	 }
+      }
+      break;
+   case GL_FLOAT:
+      k = 0;
+      for (i = 0; i < heightin; i++) {
+	 GLfloat *fptr = (GLfloat *) datain
+	    + i * rowstride
+	    + unpackskiprows * rowstride + unpackskippixels * components;
+	 for (j = 0; j < widthin * components; j++) {
+	    dummy(j, k);
+	    tempin[k++] = *fptr++;
+	 }
+      }
+      break;
+   default:
+      return GLU_INVALID_ENUM;
+   }
+
+
+   /*
+    * Scale the image!
+    */
+
+   if (widthout > 1)
+      sx = (GLfloat) (widthin - 1) / (GLfloat) (widthout - 1);
+   else
+      sx = (GLfloat) (widthin - 1);
+   if (heightout > 1)
+      sy = (GLfloat) (heightin - 1) / (GLfloat) (heightout - 1);
+   else
+      sy = (GLfloat) (heightin - 1);
+
+/*#define POINT_SAMPLE*/
+#ifdef POINT_SAMPLE
+   for (i = 0; i < heightout; i++) {
+      GLint ii = i * sy;
+      for (j = 0; j < widthout; j++) {
+	 GLint jj = j * sx;
+
+	 GLfloat *src = tempin + (ii * widthin + jj) * components;
+	 GLfloat *dst = tempout + (i * widthout + j) * components;
+
+	 for (k = 0; k < components; k++) {
+	    *dst++ = *src++;
+	 }
+      }
+   }
+#else
+   if (sx < 1.0 && sy < 1.0) {
+      /* magnify both width and height:  use weighted sample of 4 pixels */
+      GLint i0, i1, j0, j1;
+      GLfloat alpha, beta;
+      GLfloat *src00, *src01, *src10, *src11;
+      GLfloat s1, s2;
+      GLfloat *dst;
+
+      for (i = 0; i < heightout; i++) {
+	 i0 = i * sy;
+	 i1 = i0 + 1;
+	 if (i1 >= heightin)
+	    i1 = heightin - 1;
+/*	 i1 = (i+1) * sy - EPSILON;*/
+	 alpha = i * sy - i0;
+	 for (j = 0; j < widthout; j++) {
+	    j0 = j * sx;
+	    j1 = j0 + 1;
+	    if (j1 >= widthin)
+	       j1 = widthin - 1;
+/*	    j1 = (j+1) * sx - EPSILON; */
+	    beta = j * sx - j0;
+
+	    /* compute weighted average of pixels in rect (i0,j0)-(i1,j1) */
+	    src00 = tempin + (i0 * widthin + j0) * components;
+	    src01 = tempin + (i0 * widthin + j1) * components;
+	    src10 = tempin + (i1 * widthin + j0) * components;
+	    src11 = tempin + (i1 * widthin + j1) * components;
+
+	    dst = tempout + (i * widthout + j) * components;
+
+	    for (k = 0; k < components; k++) {
+	       s1 = *src00++ * (1.0 - beta) + *src01++ * beta;
+	       s2 = *src10++ * (1.0 - beta) + *src11++ * beta;
+	       *dst++ = s1 * (1.0 - alpha) + s2 * alpha;
+	    }
+	 }
+      }
+   }
+   else {
+      /* shrink width and/or height:  use an unweighted box filter */
+      GLint i0, i1;
+      GLint j0, j1;
+      GLint ii, jj;
+      GLfloat sum, *dst;
+
+      for (i = 0; i < heightout; i++) {
+	 i0 = i * sy;
+	 i1 = i0 + 1;
+	 if (i1 >= heightin)
+	    i1 = heightin - 1;
+/*	 i1 = (i+1) * sy - EPSILON; */
+	 for (j = 0; j < widthout; j++) {
+	    j0 = j * sx;
+	    j1 = j0 + 1;
+	    if (j1 >= widthin)
+	       j1 = widthin - 1;
+/*	    j1 = (j+1) * sx - EPSILON; */
+
+	    dst = tempout + (i * widthout + j) * components;
+
+	    /* compute average of pixels in the rectangle (i0,j0)-(i1,j1) */
+	    for (k = 0; k < components; k++) {
+	       sum = 0.0;
+	       for (ii = i0; ii <= i1; ii++) {
+		  for (jj = j0; jj <= j1; jj++) {
+		     sum += *(tempin + (ii * widthin + jj) * components + k);
+		  }
+	       }
+	       sum /= (j1 - j0 + 1) * (i1 - i0 + 1);
+	       *dst++ = sum;
+	    }
+	 }
+      }
+   }
+#endif
+
+
+   /*
+    * Return output image
+    */
+
+   if (packrowlength > 0) {
+      rowlen = packrowlength;
+   }
+   else {
+      rowlen = widthout;
+   }
+   if (sizeout >= packalignment) {
+      rowstride = components * rowlen;
+   }
+   else {
+      rowstride = packalignment / sizeout
+	 * CEILING(components * rowlen * sizeout, packalignment);
+   }
+
+   switch (typeout) {
+   case GL_UNSIGNED_BYTE:
+      k = 0;
+      for (i = 0; i < heightout; i++) {
+	 GLubyte *ubptr = (GLubyte *) dataout
+	    + i * rowstride
+	    + packskiprows * rowstride + packskippixels * components;
+	 for (j = 0; j < widthout * components; j++) {
+	    dummy(j, k + i);
+	    *ubptr++ = (GLubyte) tempout[k++];
+	 }
+      }
+      break;
+   case GL_BYTE:
+      k = 0;
+      for (i = 0; i < heightout; i++) {
+	 GLbyte *bptr = (GLbyte *) dataout
+	    + i * rowstride
+	    + packskiprows * rowstride + packskippixels * components;
+	 for (j = 0; j < widthout * components; j++) {
+	    dummy(j, k + i);
+	    *bptr++ = (GLbyte) tempout[k++];
+	 }
+      }
+      break;
+   case GL_UNSIGNED_SHORT:
+      k = 0;
+      for (i = 0; i < heightout; i++) {
+	 GLushort *usptr = (GLushort *) dataout
+	    + i * rowstride
+	    + packskiprows * rowstride + packskippixels * components;
+	 for (j = 0; j < widthout * components; j++) {
+	    dummy(j, k + i);
+	    *usptr++ = (GLushort) tempout[k++];
+	 }
+      }
+      break;
+   case GL_SHORT:
+      k = 0;
+      for (i = 0; i < heightout; i++) {
+	 GLshort *sptr = (GLshort *) dataout
+	    + i * rowstride
+	    + packskiprows * rowstride + packskippixels * components;
+	 for (j = 0; j < widthout * components; j++) {
+	    dummy(j, k + i);
+	    *sptr++ = (GLshort) tempout[k++];
+	 }
+      }
+      break;
+   case GL_UNSIGNED_INT:
+      k = 0;
+      for (i = 0; i < heightout; i++) {
+	 GLuint *uiptr = (GLuint *) dataout
+	    + i * rowstride
+	    + packskiprows * rowstride + packskippixels * components;
+	 for (j = 0; j < widthout * components; j++) {
+	    dummy(j, k + i);
+	    *uiptr++ = (GLuint) tempout[k++];
+	 }
+      }
+      break;
+   case GL_INT:
+      k = 0;
+      for (i = 0; i < heightout; i++) {
+	 GLint *iptr = (GLint *) dataout
+	    + i * rowstride
+	    + packskiprows * rowstride + packskippixels * components;
+	 for (j = 0; j < widthout * components; j++) {
+	    dummy(j, k + i);
+	    *iptr++ = (GLint) tempout[k++];
+	 }
+      }
+      break;
+   case GL_FLOAT:
+      k = 0;
+      for (i = 0; i < heightout; i++) {
+	 GLfloat *fptr = (GLfloat *) dataout
+	    + i * rowstride
+	    + packskiprows * rowstride + packskippixels * components;
+	 for (j = 0; j < widthout * components; j++) {
+	    dummy(j, k + i);
+	    *fptr++ = tempout[k++];
+	 }
+      }
+      break;
+   default:
+      return GLU_INVALID_ENUM;
+   }
+
+
+   /* free temporary image storage */
+   free(tempin);
+   free(tempout);
+
+   return 0;
+}
+
+
+
+/*
+ * Return the largest k such that 2^k <= n.
+ */
+static GLint
+ilog2(GLint n)
+{
+   GLint k;
+
+   if (n <= 0)
+      return 0;
+   for (k = 0; n >>= 1; k++);
+   return k;
+}
+
+
+
+/*
+ * Find the value nearest to n which is also a power of two.
+ */
+static GLint
+round2(GLint n)
+{
+   GLint m;
+
+   for (m = 1; m < n; m *= 2);
+
+   /* m>=n */
+   if (m - n <= n - m / 2) {
+      return m;
+   }
+   else {
+      return m / 2;
+   }
+}
+
+
+/*
+ * Given an pixel format and datatype, return the number of bytes to
+ * store one pixel.
+ */
+static GLint
+bytes_per_pixel(GLenum format, GLenum type)
+{
+   GLint n, m;
+
+   switch (format) {
+   case GL_COLOR_INDEX:
+   case GL_STENCIL_INDEX:
+   case GL_DEPTH_COMPONENT:
+   case GL_RED:
+   case GL_GREEN:
+   case GL_BLUE:
+   case GL_ALPHA:
+   case GL_LUMINANCE:
+      n = 1;
+      break;
+   case GL_LUMINANCE_ALPHA:
+      n = 2;
+      break;
+   case GL_RGB:
+   case GL_BGR:
+      n = 3;
+      break;
+   case GL_RGBA:
+   case GL_BGRA:
+#ifdef GL_EXT_abgr
+   case GL_ABGR_EXT:
+#endif
+      n = 4;
+      break;
+   default:
+      n = 0;
+   }
+
+   switch (type) {
+   case GL_UNSIGNED_BYTE:
+      m = sizeof(GLubyte);
+      break;
+   case GL_BYTE:
+      m = sizeof(GLbyte);
+      break;
+   case GL_BITMAP:
+      m = 1;
+      break;
+   case GL_UNSIGNED_SHORT:
+      m = sizeof(GLushort);
+      break;
+   case GL_SHORT:
+      m = sizeof(GLshort);
+      break;
+   case GL_UNSIGNED_INT:
+      m = sizeof(GLuint);
+      break;
+   case GL_INT:
+      m = sizeof(GLint);
+      break;
+   case GL_FLOAT:
+      m = sizeof(GLfloat);
+      break;
+   default:
+      m = 0;
+   }
+
+   return n * m;
+}
+
+
+
+/*
+ * WARNING: This function isn't finished and has never been tested!!!!
+ */
+GLint GLAPIENTRY
+gluBuild1DMipmaps(GLenum target, GLint components,
+		  GLsizei width, GLenum format, GLenum type, const void *data)
+{
+   return 0;
+}
+
+
+
+GLint GLAPIENTRY
+gluBuild2DMipmaps(GLenum target, GLint components,
+		  GLsizei width, GLsizei height, GLenum format,
+		  GLenum type, const void *data)
+{
+   GLint w, h;
+   GLint maxsize;
+   void *image, *newimage;
+   GLint neww, newh, level, bpp;
+   int error;
+   GLboolean done;
+   GLint retval = 0;
+   GLint unpackrowlength, unpackalignment, unpackskiprows, unpackskippixels;
+   GLint packrowlength, packalignment, packskiprows, packskippixels;
+   GLfloat f;
+
+   if (width < 1 || height < 1)
+      return GLU_INVALID_VALUE;
+
+   glGetFloatv(GL_MAX_TEXTURE_SIZE, &f); maxsize = (int)f;
+
+   w = round2(width);
+   if (w > maxsize) {
+      w = maxsize;
+   }
+   h = round2(height);
+   if (h > maxsize) {
+      h = maxsize;
+   }
+
+   bpp = bytes_per_pixel(format, type);
+   if (bpp == 0) {
+      /* probably a bad format or type enum */
+      return GLU_INVALID_ENUM;
+   }
+
+   /* Get current glPixelStore values */
+   glGetFloatv(GL_UNPACK_ROW_LENGTH, &f); unpackrowlength = (int)f;
+   glGetFloatv(GL_UNPACK_ALIGNMENT, &f); unpackalignment = (int)f;
+   glGetFloatv(GL_UNPACK_SKIP_ROWS, &f); unpackskiprows = (int)f;
+   glGetFloatv(GL_UNPACK_SKIP_PIXELS, &f); unpackskippixels = (int)f;
+   glGetFloatv(GL_PACK_ROW_LENGTH, &f); packrowlength = (int)f;
+   glGetFloatv(GL_PACK_ALIGNMENT, &f); packalignment = (int)f;
+   glGetFloatv(GL_PACK_SKIP_ROWS, &f); packskiprows = (int)f;
+   glGetFloatv(GL_PACK_SKIP_PIXELS, &f); packskippixels = (int)f;
+
+   /* set pixel packing */
+   glPixelStorei(GL_PACK_ROW_LENGTH, 0);
+   glPixelStorei(GL_PACK_ALIGNMENT, 1);
+   glPixelStorei(GL_PACK_SKIP_ROWS, 0);
+   glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
+
+   done = GL_FALSE;
+
+   if (w != width || h != height) {
+      /* must rescale image to get "top" mipmap texture image */
+      image = malloc((w + 4) * h * bpp);
+      if (!image) {
+	 return GLU_OUT_OF_MEMORY;
+      }
+      error = gluScaleImage(format, width, height, type, data,
+			    w, h, type, image);
+      if (error) {
+	 retval = error;
+	 done = GL_TRUE;
+      }
+   }
+   else {
+      image = (void *) data;
+   }
+
+   level = 0;
+   while (!done) {
+      if (image != data) {
+	 /* set pixel unpacking */
+	 glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
+	 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+	 glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
+	 glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
+      }
+
+      glTexImage2D(target, level, components, w, h, 0, format, type, image);
+
+      if (w == 1 && h == 1)
+	 break;
+
+      neww = (w < 2) ? 1 : w / 2;
+      newh = (h < 2) ? 1 : h / 2;
+      newimage = malloc((neww + 4) * newh * bpp);
+      if (!newimage) {
+	 return GLU_OUT_OF_MEMORY;
+      }
+
+      error = gluScaleImage(format, w, h, type, image,
+			    neww, newh, type, newimage);
+      if (error) {
+	 retval = error;
+	 done = GL_TRUE;
+      }
+
+      if (image != data) {
+	 free(image);
+      }
+      image = newimage;
+
+      w = neww;
+      h = newh;
+      level++;
+   }
+
+   if (image != data) {
+      free(image);
+   }
+
+   /* Restore original glPixelStore state */
+   glPixelStorei(GL_UNPACK_ROW_LENGTH, unpackrowlength);
+   glPixelStorei(GL_UNPACK_ALIGNMENT, unpackalignment);
+   glPixelStorei(GL_UNPACK_SKIP_ROWS, unpackskiprows);
+   glPixelStorei(GL_UNPACK_SKIP_PIXELS, unpackskippixels);
+   glPixelStorei(GL_PACK_ROW_LENGTH, packrowlength);
+   glPixelStorei(GL_PACK_ALIGNMENT, packalignment);
+   glPixelStorei(GL_PACK_SKIP_ROWS, packskiprows);
+   glPixelStorei(GL_PACK_SKIP_PIXELS, packskippixels);
+
+   return retval;
+}

src/glu/mini/nurbs.c

@@ -0,0 +1,158 @@
+/* $Id: nurbs.c,v 1.1.2.1 2003/03/21 13:02:13 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * NURBS implementation written by Bogdan Sikorski (bogdan@cira.it)
+ * See README2 for more info.
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <stdio.h>
+#include <stdlib.h>
+#include "gluP.h"
+#include "nurbs.h"
+#endif
+
+
+void
+call_user_error(GLUnurbsObj * nobj, GLenum error)
+{
+   nobj->error = error;
+   if (nobj->error_callback != NULL) {
+      (*(nobj->error_callback)) (error);
+   }
+   else {
+      printf("NURBS error %d %s\n", error, (char *) gluErrorString(error));
+   }
+}
+
+
+
+GLUnurbsObj *GLAPIENTRY
+gluNewNurbsRenderer(void)
+{
+   GLUnurbsObj *n;
+   GLfloat tmp_viewport[4];
+   GLint i, j;
+
+   n = (GLUnurbsObj *) malloc(sizeof(GLUnurbsObj));
+   return n;
+}
+
+
+
+void GLAPIENTRY
+gluDeleteNurbsRenderer(GLUnurbsObj * nobj)
+{
+   if (nobj) {
+      free(nobj);
+   }
+}
+
+
+
+void GLAPIENTRY
+gluLoadSamplingMatrices(GLUnurbsObj * nobj,
+			const GLfloat modelMatrix[16],
+			const GLfloat projMatrix[16], const GLint viewport[4])
+{
+}
+
+
+void GLAPIENTRY
+gluNurbsProperty(GLUnurbsObj * nobj, GLenum property, GLfloat value)
+{
+}
+
+
+void GLAPIENTRY
+gluGetNurbsProperty(GLUnurbsObj * nobj, GLenum property, GLfloat * value)
+{
+}
+
+
+
+void GLAPIENTRY
+gluBeginCurve(GLUnurbsObj * nobj)
+{
+}
+
+
+void GLAPIENTRY
+gluEndCurve(GLUnurbsObj * nobj)
+{
+}
+
+
+void GLAPIENTRY
+gluNurbsCurve(GLUnurbsObj * nobj, GLint nknots, GLfloat * knot,
+	      GLint stride, GLfloat * ctlarray, GLint order, GLenum type)
+{
+}
+
+
+void GLAPIENTRY
+gluBeginSurface(GLUnurbsObj * nobj)
+{
+}
+
+
+void GLAPIENTRY
+gluEndSurface(GLUnurbsObj * nobj)
+{
+}
+
+
+void GLAPIENTRY
+gluNurbsSurface(GLUnurbsObj * nobj,
+		GLint sknot_count, GLfloat * sknot,
+		GLint tknot_count, GLfloat * tknot,
+		GLint s_stride, GLint t_stride,
+		GLfloat * ctrlarray, GLint sorder, GLint torder, GLenum type)
+{
+}
+
+
+void GLAPIENTRY
+gluNurbsCallback(GLUnurbsObj * nobj, GLenum which, void (GLCALLBACK * fn) ())
+{
+}
+
+void GLAPIENTRY
+gluBeginTrim(GLUnurbsObj * nobj)
+{
+}
+
+void GLAPIENTRY
+gluPwlCurve(GLUnurbsObj * nobj, GLint count, GLfloat * array, GLint stride,
+	    GLenum type)
+{
+}
+
+void GLAPIENTRY
+gluEndTrim(GLUnurbsObj * nobj)
+{
+}

src/glu/mini/nurbs.h

@@ -0,0 +1,253 @@
+/* $Id: nurbs.h,v 1.1.2.1 2003/03/21 13:02:14 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * NURBS implementation written by Bogdan Sikorski (bogdan@cira.it)
+ * See README2 for more info.
+ */
+
+
+#ifndef NURBS_H
+#define NURBS_H
+
+
+#define EPSILON 1e-06		/* epsilon for double precision compares */
+
+typedef enum
+{
+   GLU_NURBS_CURVE, GLU_NURBS_SURFACE, GLU_NURBS_TRIM, GLU_NURBS_NO_TRIM,
+   GLU_NURBS_TRIM_DONE, GLU_NURBS_NONE
+}
+GLU_nurbs_enum;
+
+typedef enum
+{
+   GLU_TRIM_NURBS, GLU_TRIM_PWL
+}
+GLU_trim_enum;
+
+typedef struct
+{
+   GLint sknot_count;
+   GLfloat *sknot;
+   GLint tknot_count;
+   GLfloat *tknot;
+   GLint s_stride;
+   GLint t_stride;
+   GLfloat *ctrlarray;
+   GLint sorder;
+   GLint torder;
+   GLint dim;
+   GLenum type;
+}
+surface_attribs;
+
+typedef struct
+{
+   surface_attribs geom;
+   surface_attribs color;
+   surface_attribs texture;
+   surface_attribs normal;
+}
+nurbs_surface;
+
+typedef struct
+{
+   GLint knot_count;
+   GLfloat *knot;
+   GLint stride;
+   GLfloat *ctrlarray;
+   GLint order;
+   GLint dim;
+   GLenum type;
+}
+curve_attribs;
+
+typedef struct
+{
+   GLint pt_count;
+   GLfloat *ctrlarray;
+   GLint stride;
+   GLint dim;
+   GLenum type;
+}
+pwl_curve_attribs;
+
+typedef struct
+{
+   curve_attribs geom;
+   curve_attribs color;
+   curve_attribs texture;
+   curve_attribs normal;
+}
+nurbs_curve;
+
+typedef struct trim_list_str
+{
+   GLU_trim_enum trim_type;
+   union
+   {
+      pwl_curve_attribs pwl_curve;
+      curve_attribs nurbs_curve;
+   }
+   curve;
+   struct trim_list_str *next;
+}
+trim_list;
+
+typedef struct seg_trim_str
+{
+   GLfloat *points;
+   GLint pt_cnt, seg_array_len;
+   struct seg_trim_str *next;
+}
+trim_segments;
+
+typedef struct nurbs_trim_str
+{
+   trim_list *trim_loop;
+   trim_segments *segments;
+   struct nurbs_trim_str *next;
+}
+nurbs_trim;
+
+typedef struct
+{
+   GLfloat model[16], proj[16], viewport[4];
+}
+culling_and_sampling_str;
+
+struct GLUnurbs
+{
+   GLboolean culling;
+   GLenum error;
+   void (GLCALLBACK * error_callback) (GLenum err);
+   GLenum display_mode;
+   GLU_nurbs_enum nurbs_type;
+   GLboolean auto_load_matrix;
+     culling_and_sampling_str sampling_matrices;
+   GLenum sampling_method;
+   GLfloat sampling_tolerance;
+   GLfloat parametric_tolerance;
+   GLint u_step, v_step;
+   nurbs_surface surface;
+   nurbs_curve curve;
+   nurbs_trim *trim;
+};
+
+typedef struct
+{
+   GLfloat *knot;
+   GLint nknots;
+   GLfloat *unified_knot;
+   GLint unified_nknots;
+   GLint order;
+   GLint t_min, t_max;
+   GLint delta_nknots;
+   GLboolean open_at_begin, open_at_end;
+   GLfloat *new_knot;
+   GLfloat *alpha;
+}
+knot_str_type;
+
+typedef struct
+{
+   GLfloat *geom_ctrl;
+   GLint geom_s_stride, geom_t_stride;
+   GLfloat **geom_offsets;
+   GLint geom_s_pt_cnt, geom_t_pt_cnt;
+   GLfloat *color_ctrl;
+   GLint color_s_stride, color_t_stride;
+   GLfloat **color_offsets;
+   GLint color_s_pt_cnt, color_t_pt_cnt;
+   GLfloat *normal_ctrl;
+   GLint normal_s_stride, normal_t_stride;
+   GLfloat **normal_offsets;
+   GLint normal_s_pt_cnt, normal_t_pt_cnt;
+   GLfloat *texture_ctrl;
+   GLint texture_s_stride, texture_t_stride;
+   GLfloat **texture_offsets;
+   GLint texture_s_pt_cnt, texture_t_pt_cnt;
+   GLint s_bezier_cnt, t_bezier_cnt;
+}
+new_ctrl_type;
+
+extern void call_user_error(GLUnurbsObj * nobj, GLenum error);
+
+extern GLenum test_knot(GLint nknots, GLfloat * knot, GLint order);
+
+extern GLenum explode_knot(knot_str_type * the_knot);
+
+extern GLenum calc_alphas(knot_str_type * the_knot);
+
+extern GLenum calc_new_ctrl_pts(GLfloat * ctrl, GLint stride,
+				knot_str_type * the_knot, GLint dim,
+				GLfloat ** new_ctrl, GLint * ncontrol);
+
+extern GLenum glu_do_sampling_crv(GLUnurbsObj * nobj, GLfloat * new_ctrl,
+				  GLint n_ctrl, GLint order, GLint dim,
+				  GLint ** factors);
+
+extern GLenum glu_do_sampling_3D(GLUnurbsObj * nobj, new_ctrl_type * new_ctrl,
+				 int **sfactors, GLint ** tfactors);
+
+extern GLenum glu_do_sampling_uv(GLUnurbsObj * nobj, new_ctrl_type * new_ctrl,
+				 int **sfactors, GLint ** tfactors);
+
+extern GLenum glu_do_sampling_param_3D(GLUnurbsObj * nobj,
+				       new_ctrl_type * new_ctrl,
+				       int **sfactors, GLint ** tfactors);
+
+extern GLboolean fine_culling_test_2D(GLUnurbsObj * nobj, GLfloat * ctrl,
+				      GLint n_ctrl, GLint stride, GLint dim);
+
+extern GLboolean fine_culling_test_3D(GLUnurbsObj * nobj, GLfloat * ctrl,
+				      GLint s_n_ctrl, GLint t_n_ctrl,
+				      GLint s_stride, GLint t_stride,
+				      GLint dim);
+
+extern void do_nurbs_curve(GLUnurbsObj * nobj);
+
+extern void do_nurbs_surface(GLUnurbsObj * nobj);
+
+extern GLenum patch_trimming(GLUnurbsObj * nobj, new_ctrl_type * new_ctrl,
+			     GLint * sfactors, GLint * tfactors);
+
+extern void collect_unified_knot(knot_str_type * dest, knot_str_type * src,
+				 GLfloat maximal_min_knot,
+				 GLfloat minimal_max_knot);
+
+extern GLenum select_knot_working_range(GLUnurbsObj * nobj,
+					knot_str_type * geom_knot,
+					knot_str_type * color_knot,
+					knot_str_type * normal_knot,
+					knot_str_type * texture_knot);
+
+extern void free_unified_knots(knot_str_type * geom_knot,
+			       knot_str_type * color_knot,
+			       knot_str_type * normal_knot,
+			       knot_str_type * texture_knot);
+
+
+
+#endif

src/glu/mini/nurbscrv.c

@@ -0,0 +1,133 @@
+/* $Id: nurbscrv.c,v 1.1.2.1 2003/03/21 13:02:16 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * NURBS implementation written by Bogdan Sikorski (bogdan@cira.it)
+ * See README2 for more info.
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <math.h>
+#include <stdlib.h>
+#include "gluP.h"
+#include "nurbs.h"
+#endif
+
+
+
+/* main NURBS curve procedure */
+void
+do_nurbs_curve(GLUnurbsObj * nobj)
+{
+   GLint geom_order, color_order = 0, normal_order = 0, texture_order = 0;
+   GLenum geom_type;
+   GLint n_ctrl;
+   GLfloat *new_geom_ctrl, *new_color_ctrl, *new_normal_ctrl,
+      *new_texture_ctrl;
+   GLfloat *geom_ctrl = 0, *color_ctrl = 0, *normal_ctrl = 0, *texture_ctrl = 0;
+   GLint *factors;
+   GLint i, j;
+   GLint geom_dim, color_dim = 0, normal_dim = 0, texture_dim = 0;
+
+   /* test the user supplied data */
+   if (test_nurbs_curves(nobj) != GLU_NO_ERROR)
+      return;
+
+   if (convert_curves(nobj, &new_geom_ctrl, &n_ctrl, &new_color_ctrl,
+		      &new_normal_ctrl, &new_texture_ctrl) != GLU_NO_ERROR)
+      return;
+
+   geom_order = nobj->curve.geom.order;
+   geom_type = nobj->curve.geom.type;
+   geom_dim = nobj->curve.geom.dim;
+
+   if (glu_do_sampling_crv(nobj, new_geom_ctrl, n_ctrl, geom_order, geom_dim,
+			   &factors) != GLU_NO_ERROR) {
+      free(new_geom_ctrl);
+      if (new_color_ctrl)
+	 free(new_color_ctrl);
+      if (new_normal_ctrl)
+	 free(new_normal_ctrl);
+      if (new_texture_ctrl)
+	 free(new_texture_ctrl);
+      return;
+   }
+   glEnable(geom_type);
+   if (new_color_ctrl) {
+      glEnable(nobj->curve.color.type);
+      color_dim = nobj->curve.color.dim;
+      color_ctrl = new_color_ctrl;
+      color_order = nobj->curve.color.order;
+   }
+   if (new_normal_ctrl) {
+      glEnable(nobj->curve.normal.type);
+      normal_dim = nobj->curve.normal.dim;
+      normal_ctrl = new_normal_ctrl;
+      normal_order = nobj->curve.normal.order;
+   }
+   if (new_texture_ctrl) {
+      glEnable(nobj->curve.texture.type);
+      texture_dim = nobj->curve.texture.dim;
+      texture_ctrl = new_texture_ctrl;
+      texture_order = nobj->curve.texture.order;
+   }
+   for (i = 0, j = 0, geom_ctrl = new_geom_ctrl;
+	i < n_ctrl; i += geom_order, j++, geom_ctrl += geom_order * geom_dim) {
+      if (fine_culling_test_2D
+	  (nobj, geom_ctrl, geom_order, geom_dim, geom_dim)) {
+	 color_ctrl += color_order * color_dim;
+	 normal_ctrl += normal_order * normal_dim;
+	 texture_ctrl += texture_order * texture_dim;
+	 continue;
+      }
+      glMap1f(geom_type, 0.0, 1.0, geom_dim, geom_order, geom_ctrl);
+      if (new_color_ctrl) {
+	 glMap1f(nobj->curve.color.type, 0.0, 1.0, color_dim,
+		 color_order, color_ctrl);
+	 color_ctrl += color_order * color_dim;
+      }
+      if (new_normal_ctrl) {
+	 glMap1f(nobj->curve.normal.type, 0.0, 1.0, normal_dim,
+		 normal_order, normal_ctrl);
+	 normal_ctrl += normal_order * normal_dim;
+      }
+      if (new_texture_ctrl) {
+	 glMap1f(nobj->curve.texture.type, 0.0, 1.0, texture_dim,
+		 texture_order, texture_ctrl);
+	 texture_ctrl += texture_order * texture_dim;
+      }
+      glMapGrid1f(factors[j], 0.0, 1.0);
+      glEvalMesh1(GL_LINE, 0, factors[j]);
+   }
+   free(new_geom_ctrl);
+   free(factors);
+   if (new_color_ctrl)
+      free(new_color_ctrl);
+   if (new_normal_ctrl)
+      free(new_normal_ctrl);
+   if (new_texture_ctrl)
+      free(new_texture_ctrl);
+}

src/glu/mini/polytest.c

@@ -0,0 +1,938 @@
+/* $Id: polytest.c,v 1.1.2.1 2003/03/21 13:02:17 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * This file is part of the polygon tesselation code contributed by
+ * Bogdan Sikorski
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <math.h>
+#include <stdlib.h>
+#include "gluP.h"
+#include "tess.h"
+#endif
+
+
+
+static GLenum store_polygon_as_contour(GLUtriangulatorObj *);
+static void free_current_polygon(tess_polygon *);
+static void prepare_projection_info(GLUtriangulatorObj *);
+static GLdouble twice_the_polygon_area(tess_vertex *, tess_vertex *);
+static GLenum verify_edge_vertex_intersections(GLUtriangulatorObj *);
+void tess_find_contour_hierarchies(GLUtriangulatorObj *);
+static GLenum test_for_overlapping_contours(GLUtriangulatorObj *);
+static GLenum contours_overlap(tess_contour *, tess_polygon *);
+static GLenum is_contour_contained_in(tess_contour *, tess_contour *);
+static void add_new_exterior(GLUtriangulatorObj *, tess_contour *);
+static void add_new_interior(GLUtriangulatorObj *, tess_contour *,
+			     tess_contour *);
+static void add_interior_with_hierarchy_check(GLUtriangulatorObj *,
+					      tess_contour *, tess_contour *);
+static void reverse_hierarchy_and_add_exterior(GLUtriangulatorObj *,
+					       tess_contour *,
+					       tess_contour *);
+static GLboolean point_in_polygon(tess_contour *, GLdouble, GLdouble);
+static void shift_interior_to_exterior(GLUtriangulatorObj *, tess_contour *);
+static void add_exterior_with_check(GLUtriangulatorObj *, tess_contour *,
+				    tess_contour *);
+static GLenum cut_out_hole(GLUtriangulatorObj *, tess_contour *,
+			   tess_contour *);
+static GLenum merge_hole_with_contour(GLUtriangulatorObj *,
+				      tess_contour *, tess_contour *,
+				      tess_vertex *, tess_vertex *);
+
+static GLenum
+find_normal(GLUtriangulatorObj * tobj)
+{
+   tess_polygon *polygon = tobj->current_polygon;
+   tess_vertex *va, *vb, *vc;
+   GLdouble A, B, C;
+   GLdouble A0, A1, A2, B0, B1, B2;
+
+   va = polygon->vertices;
+   vb = va->next;
+   A0 = vb->location[0] - va->location[0];
+   A1 = vb->location[1] - va->location[1];
+   A2 = vb->location[2] - va->location[2];
+   for (vc = vb->next; vc != va; vc = vc->next) {
+      B0 = vc->location[0] - va->location[0];
+      B1 = vc->location[1] - va->location[1];
+      B2 = vc->location[2] - va->location[2];
+      A = A1 * B2 - A2 * B1;
+      B = A2 * B0 - A0 * B2;
+      C = A0 * B1 - A1 * B0;
+      if (fabs(A) > EPSILON || fabs(B) > EPSILON || fabs(C) > EPSILON) {
+	 polygon->A = A;
+	 polygon->B = B;
+	 polygon->C = C;
+	 polygon->D =
+	    -A * va->location[0] - B * va->location[1] - C * va->location[2];
+	 return GLU_NO_ERROR;
+      }
+   }
+   tess_call_user_error(tobj, GLU_TESS_ERROR7);
+   return GLU_ERROR;
+}
+
+void
+tess_test_polygon(GLUtriangulatorObj * tobj)
+{
+   tess_polygon *polygon = tobj->current_polygon;
+
+   /* any vertices defined? */
+   if (polygon->vertex_cnt < 3) {
+      free_current_polygon(polygon);
+      return;
+   }
+   /* wrap pointers */
+   polygon->last_vertex->next = polygon->vertices;
+   polygon->vertices->previous = polygon->last_vertex;
+   /* determine the normal */
+   if (find_normal(tobj) == GLU_ERROR)
+      return;
+   /* compare the normals of previously defined contours and this one */
+   /* first contour define ? */
+   if (tobj->contours == NULL) {
+      tobj->A = polygon->A;
+      tobj->B = polygon->B;
+      tobj->C = polygon->C;
+      tobj->D = polygon->D;
+      /* determine the best projection to use */
+      if (fabs(polygon->A) > fabs(polygon->B))
+	 if (fabs(polygon->A) > fabs(polygon->C))
+	    tobj->projection = OYZ;
+	 else
+	    tobj->projection = OXY;
+      else if (fabs(polygon->B) > fabs(polygon->C))
+	 tobj->projection = OXZ;
+      else
+	 tobj->projection = OXY;
+   }
+   else {
+      GLdouble a[3], b[3];
+      tess_vertex *vertex = polygon->vertices;
+
+      a[0] = tobj->A;
+      a[1] = tobj->B;
+      a[2] = tobj->C;
+      b[0] = polygon->A;
+      b[1] = polygon->B;
+      b[2] = polygon->C;
+
+      /* compare the normals */
+      if (fabs(a[1] * b[2] - a[2] * b[1]) > EPSILON ||
+	  fabs(a[2] * b[0] - a[0] * b[2]) > EPSILON ||
+	  fabs(a[0] * b[1] - a[1] * b[0]) > EPSILON) {
+	 /* not coplanar */
+	 tess_call_user_error(tobj, GLU_TESS_ERROR9);
+	 return;
+      }
+      /* the normals are parallel - test for plane equation */
+      if (fabs(a[0] * vertex->location[0] + a[1] * vertex->location[1] +
+	       a[2] * vertex->location[2] + tobj->D) > EPSILON) {
+	 /* not the same plane */
+	 tess_call_user_error(tobj, GLU_TESS_ERROR9);
+	 return;
+      }
+   }
+   prepare_projection_info(tobj);
+   if (verify_edge_vertex_intersections(tobj) == GLU_ERROR)
+      return;
+   if (test_for_overlapping_contours(tobj) == GLU_ERROR)
+      return;
+   if (store_polygon_as_contour(tobj) == GLU_ERROR)
+      return;
+}
+
+static GLenum
+test_for_overlapping_contours(GLUtriangulatorObj * tobj)
+{
+   tess_contour *contour;
+   tess_polygon *polygon;
+
+   polygon = tobj->current_polygon;
+   for (contour = tobj->contours; contour != NULL; contour = contour->next)
+      if (contours_overlap(contour, polygon) != GLU_NO_ERROR) {
+	 tess_call_user_error(tobj, GLU_TESS_ERROR5);
+	 return GLU_ERROR;
+      }
+   return GLU_NO_ERROR;
+}
+
+static GLenum
+store_polygon_as_contour(GLUtriangulatorObj * tobj)
+{
+   tess_polygon *polygon = tobj->current_polygon;
+   tess_contour *contour = tobj->contours;
+
+   /* the first contour defined */
+   if (contour == NULL) {
+      if ((contour = (tess_contour *) malloc(sizeof(tess_contour))) == NULL) {
+	 tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+	 free_current_polygon(polygon);
+	 return GLU_ERROR;
+      }
+      tobj->contours = tobj->last_contour = contour;
+      contour->next = contour->previous = NULL;
+   }
+   else {
+      if ((contour = (tess_contour *) malloc(sizeof(tess_contour))) == NULL) {
+	 tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+	 free_current_polygon(polygon);
+	 return GLU_ERROR;
+      }
+      contour->previous = tobj->last_contour;
+      tobj->last_contour->next = contour;
+      tobj->last_contour = contour;
+      contour->next = NULL;
+   }
+   /* mark all vertices in new contour as not special */
+   /* and all are boundary edges */
+   {
+      tess_vertex *vertex;
+      GLuint vertex_cnt, i;
+
+      for (vertex = polygon->vertices, i = 0, vertex_cnt =
+	   polygon->vertex_cnt; i < vertex_cnt; vertex = vertex->next, i++) {
+	 vertex->shadow_vertex = NULL;
+	 vertex->edge_flag = GL_TRUE;
+      }
+   }
+   contour->vertex_cnt = polygon->vertex_cnt;
+   contour->area = polygon->area;
+   contour->orientation = polygon->orientation;
+   contour->type = GLU_UNKNOWN;
+   contour->vertices = polygon->vertices;
+   contour->last_vertex = polygon->last_vertex;
+   polygon->vertices = polygon->last_vertex = NULL;
+   polygon->vertex_cnt = 0;
+   ++(tobj->contour_cnt);
+   return GLU_NO_ERROR;
+}
+
+static void
+free_current_polygon(tess_polygon * polygon)
+{
+   tess_vertex *vertex, *vertex_tmp;
+   GLuint i;
+
+   /* free current_polygon structures */
+   for (vertex = polygon->vertices, i = 0; i < polygon->vertex_cnt; i++) {
+      vertex_tmp = vertex->next;
+      free(vertex);
+      vertex = vertex_tmp;
+   }
+   polygon->vertices = polygon->last_vertex = NULL;
+   polygon->vertex_cnt = 0;
+}
+
+static void
+prepare_projection_info(GLUtriangulatorObj * tobj)
+{
+   tess_polygon *polygon = tobj->current_polygon;
+   tess_vertex *vertex, *last_vertex_ptr;
+   GLdouble area;
+
+   last_vertex_ptr = polygon->last_vertex;
+   switch (tobj->projection) {
+   case OXY:
+      for (vertex = polygon->vertices; vertex != last_vertex_ptr;
+	   vertex = vertex->next) {
+	 vertex->x = vertex->location[0];
+	 vertex->y = vertex->location[1];
+      }
+      last_vertex_ptr->x = last_vertex_ptr->location[0];
+      last_vertex_ptr->y = last_vertex_ptr->location[1];
+      break;
+   case OXZ:
+      for (vertex = polygon->vertices; vertex != last_vertex_ptr;
+	   vertex = vertex->next) {
+	 vertex->x = vertex->location[0];
+	 vertex->y = vertex->location[2];
+      }
+      last_vertex_ptr->x = last_vertex_ptr->location[0];
+      last_vertex_ptr->y = last_vertex_ptr->location[2];
+      break;
+   case OYZ:
+      for (vertex = polygon->vertices; vertex != last_vertex_ptr;
+	   vertex = vertex->next) {
+	 vertex->x = vertex->location[1];
+	 vertex->y = vertex->location[2];
+      }
+      last_vertex_ptr->x = last_vertex_ptr->location[1];
+      last_vertex_ptr->y = last_vertex_ptr->location[2];
+      break;
+   }
+   area = twice_the_polygon_area(polygon->vertices, polygon->last_vertex);
+   if (area >= 0.0) {
+      polygon->orientation = GLU_CCW;
+      polygon->area = area;
+   }
+   else {
+      polygon->orientation = GLU_CW;
+      polygon->area = -area;
+   }
+}
+
+static GLdouble
+twice_the_polygon_area(tess_vertex * vertex, tess_vertex * last_vertex)
+{
+   tess_vertex *next;
+   GLdouble area, x, y;
+
+   area = 0.0;
+   x = vertex->x;
+   y = vertex->y;
+   vertex = vertex->next;
+   for (; vertex != last_vertex; vertex = vertex->next) {
+      next = vertex->next;
+      area +=
+	 (vertex->x - x) * (next->y - y) - (vertex->y - y) * (next->x - x);
+   }
+   return area;
+}
+
+/* test if edges ab and cd intersect */
+/* if not return GLU_NO_ERROR, else if cross return GLU_TESS_ERROR8, */
+/* else if adjacent return GLU_TESS_ERROR4 */
+static GLenum
+edge_edge_intersect(tess_vertex * a,
+		    tess_vertex * b, tess_vertex * c, tess_vertex * d)
+{
+   GLdouble denom, r, s;
+   GLdouble xba, ydc, yba, xdc, yac, xac;
+
+   xba = b->x - a->x;
+   yba = b->y - a->y;
+   xdc = d->x - c->x;
+   ydc = d->y - c->y;
+   xac = a->x - c->x;
+   yac = a->y - c->y;
+   denom = xba * ydc - yba * xdc;
+   r = yac * xdc - xac * ydc;
+   /* parallel? */
+   if (fabs(denom) < EPSILON) {
+      if (fabs(r) < EPSILON) {
+	 /* colinear */
+	 if (fabs(xba) < EPSILON) {
+	    /* compare the Y coordinate */
+	    if (yba > 0.0) {
+	       if (
+		   (fabs(a->y - c->y) < EPSILON
+		    && fabs(c->y - b->y) < EPSILON)
+		   || (fabs(a->y - d->y) < EPSILON
+		       && fabs(d->y - b->y) <
+		       EPSILON)) return GLU_TESS_ERROR4;
+
+	    }
+	    else {
+	       if (
+		   (fabs(b->y - c->y) < EPSILON
+		    && fabs(c->y - a->y) < EPSILON)
+		   || (fabs(b->y - d->y) < EPSILON
+		       && fabs(d->y - a->y) <
+		       EPSILON)) return GLU_TESS_ERROR4;
+	    }
+	 }
+	 else {
+	    /* compare the X coordinate */
+	    if (xba > 0.0) {
+	       if (
+		   (fabs(a->x - c->x) < EPSILON
+		    && fabs(c->x - b->x) < EPSILON)
+		   || (fabs(a->x - d->x) < EPSILON
+		       && fabs(d->x - b->x) <
+		       EPSILON)) return GLU_TESS_ERROR4;
+	    }
+	    else {
+	       if (
+		   (fabs(b->x - c->x) < EPSILON
+		    && fabs(c->x - a->x) < EPSILON)
+		   || (fabs(b->x - d->x) < EPSILON
+		       && fabs(d->x - a->x) <
+		       EPSILON)) return GLU_TESS_ERROR4;
+	    }
+	 }
+      }
+      return GLU_NO_ERROR;
+   }
+   r /= denom;
+   s = (yac * xba - xac * yba) / denom;
+   /* test if one vertex lies on other edge */
+   if (((fabs(r) < EPSILON || (r < 1.0 + EPSILON && r > 1.0 - EPSILON)) &&
+	s > -EPSILON && s < 1.0 + EPSILON) ||
+       ((fabs(s) < EPSILON || (s < 1.0 + EPSILON && s > 1.0 - EPSILON)) &&
+	r > -EPSILON && r < 1.0 + EPSILON)) {
+      return GLU_TESS_ERROR4;
+   }
+   /* test for crossing */
+   if (r > -EPSILON && r < 1.0 + EPSILON && s > -EPSILON && s < 1.0 + EPSILON) {
+      return GLU_TESS_ERROR8;
+   }
+   return GLU_NO_ERROR;
+}
+
+static GLenum
+verify_edge_vertex_intersections(GLUtriangulatorObj * tobj)
+{
+   tess_polygon *polygon = tobj->current_polygon;
+   tess_vertex *vertex1, *last_vertex, *vertex2;
+   GLenum test;
+
+   last_vertex = polygon->last_vertex;
+   vertex1 = last_vertex;
+   for (vertex2 = vertex1->next->next;
+	vertex2->next != last_vertex; vertex2 = vertex2->next) {
+      test = edge_edge_intersect(vertex1, vertex1->next, vertex2,
+				 vertex2->next);
+      if (test != GLU_NO_ERROR) {
+	 tess_call_user_error(tobj, test);
+	 return GLU_ERROR;
+      }
+   }
+   for (vertex1 = polygon->vertices;
+	vertex1->next->next != last_vertex; vertex1 = vertex1->next) {
+      for (vertex2 = vertex1->next->next;
+	   vertex2 != last_vertex; vertex2 = vertex2->next) {
+	 test = edge_edge_intersect(vertex1, vertex1->next, vertex2,
+				    vertex2->next);
+	 if (test != GLU_NO_ERROR) {
+	    tess_call_user_error(tobj, test);
+	    return GLU_ERROR;
+	 }
+      }
+   }
+   return GLU_NO_ERROR;
+}
+
+static int
+#ifdef WIN32
+  __cdecl
+#endif
+area_compare(const void *a, const void *b)
+{
+   GLdouble area1, area2;
+
+   area1 = (*((tess_contour **) a))->area;
+   area2 = (*((tess_contour **) b))->area;
+   if (area1 < area2)
+      return 1;
+   if (area1 > area2)
+      return -1;
+   return 0;
+}
+
+void
+tess_find_contour_hierarchies(GLUtriangulatorObj * tobj)
+{
+   tess_contour **contours;	/* dinamic array of pointers */
+   tess_contour *tmp_contour_ptr = tobj->contours;
+   GLuint cnt, i;
+   GLenum result;
+   GLboolean hierarchy_changed;
+
+   /* any contours? */
+   if (tobj->contour_cnt < 2) {
+      tobj->contours->type = GLU_EXTERIOR;
+      return;
+   }
+   if ((contours = (tess_contour **)
+	malloc(sizeof(tess_contour *) * (tobj->contour_cnt))) == NULL) {
+      tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+      return;
+   }
+   for (tmp_contour_ptr = tobj->contours, cnt = 0;
+	tmp_contour_ptr != NULL; tmp_contour_ptr = tmp_contour_ptr->next)
+      contours[cnt++] = tmp_contour_ptr;
+   /* now sort the contours in decreasing area size order */
+   qsort((void *) contours, (size_t) cnt, (size_t) sizeof(tess_contour *),
+	 area_compare);
+   /* we leave just the first contour - remove others from list */
+   tobj->contours = contours[0];
+   tobj->contours->next = tobj->contours->previous = NULL;
+   tobj->last_contour = tobj->contours;
+   tobj->contour_cnt = 1;
+   /* first contour is the one with greatest area */
+   /* must be EXTERIOR */
+   tobj->contours->type = GLU_EXTERIOR;
+   tmp_contour_ptr = tobj->contours;
+   /* now we play! */
+   for (i = 1; i < cnt; i++) {
+      hierarchy_changed = GL_FALSE;
+      for (tmp_contour_ptr = tobj->contours;
+	   tmp_contour_ptr != NULL; tmp_contour_ptr = tmp_contour_ptr->next) {
+	 if (tmp_contour_ptr->type == GLU_EXTERIOR) {
+	    /* check if contour completely contained in EXTERIOR */
+	    result = is_contour_contained_in(tmp_contour_ptr, contours[i]);
+	    switch (result) {
+	    case GLU_INTERIOR:
+	       /* now we have to check if contour is inside interiors */
+	       /* or not */
+	       /* any interiors? */
+	       if (tmp_contour_ptr->next != NULL &&
+		   tmp_contour_ptr->next->type == GLU_INTERIOR) {
+		  /* for all interior, check if inside any of them */
+		  /* if not inside any of interiors, its another */
+		  /* interior */
+		  /* or it may contain some interiors, then change */
+		  /* the contained interiors to exterior ones */
+		  add_interior_with_hierarchy_check(tobj,
+						    tmp_contour_ptr,
+						    contours[i]);
+	       }
+	       else {
+		  /* not in interior, add as new interior contour */
+		  add_new_interior(tobj, tmp_contour_ptr, contours[i]);
+	       }
+	       hierarchy_changed = GL_TRUE;
+	       break;
+	    case GLU_EXTERIOR:
+	       /* ooops, the marked as EXTERIOR (contours[i]) is */
+	       /* actually an interior of tmp_contour_ptr */
+	       /*  reverse the local hierarchy */
+	       reverse_hierarchy_and_add_exterior(tobj, tmp_contour_ptr,
+						  contours[i]);
+	       hierarchy_changed = GL_TRUE;
+	       break;
+	    case GLU_NO_ERROR:
+	       break;
+	    default:
+	       abort();
+	    }
+	 }
+	 if (hierarchy_changed)
+	    break;		/* break from for loop */
+      }
+      if (hierarchy_changed == GL_FALSE) {
+	 /* disjoint with all contours, add to contour list */
+	 add_new_exterior(tobj, contours[i]);
+      }
+   }
+   free(contours);
+}
+
+/* returns GLU_INTERIOR if inner is completey enclosed within outer */
+/* returns GLU_EXTERIOR if outer is completely enclosed within inner */
+/* returns GLU_NO_ERROR if contours are disjoint */
+static GLenum
+is_contour_contained_in(tess_contour * outer, tess_contour * inner)
+{
+   GLenum relation_flag;
+
+   /* set relation_flag to relation of containment of first inner vertex */
+   /* regarding outer contour */
+   if (point_in_polygon(outer, inner->vertices->x, inner->vertices->y))
+      relation_flag = GLU_INTERIOR;
+   else
+      relation_flag = GLU_EXTERIOR;
+   if (relation_flag == GLU_INTERIOR)
+      return GLU_INTERIOR;
+   if (point_in_polygon(inner, outer->vertices->x, outer->vertices->y))
+      return GLU_EXTERIOR;
+   return GLU_NO_ERROR;
+}
+
+static GLboolean
+point_in_polygon(tess_contour * contour, GLdouble x, GLdouble y)
+{
+   tess_vertex *v1, *v2;
+   GLuint i, vertex_cnt;
+   GLdouble xp1, yp1, xp2, yp2;
+   GLboolean tst;
+
+   tst = GL_FALSE;
+   v1 = contour->vertices;
+   v2 = contour->vertices->previous;
+   for (i = 0, vertex_cnt = contour->vertex_cnt; i < vertex_cnt; i++) {
+      xp1 = v1->x;
+      yp1 = v1->y;
+      xp2 = v2->x;
+      yp2 = v2->y;
+      if ((((yp1 <= y) && (y < yp2)) || ((yp2 <= y) && (y < yp1))) &&
+	  (x < (xp2 - xp1) * (y - yp1) / (yp2 - yp1) + xp1))
+	 tst = (tst == GL_FALSE ? GL_TRUE : GL_FALSE);
+      v2 = v1;
+      v1 = v1->next;
+   }
+   return tst;
+}
+
+static GLenum
+contours_overlap(tess_contour * contour, tess_polygon * polygon)
+{
+   tess_vertex *vertex1, *vertex2;
+   GLuint vertex1_cnt, vertex2_cnt, i, j;
+   GLenum test;
+
+   vertex1 = contour->vertices;
+   vertex2 = polygon->vertices;
+   vertex1_cnt = contour->vertex_cnt;
+   vertex2_cnt = polygon->vertex_cnt;
+   for (i = 0; i < vertex1_cnt; vertex1 = vertex1->next, i++) {
+      for (j = 0; j < vertex2_cnt; vertex2 = vertex2->next, j++)
+	 if ((test = edge_edge_intersect(vertex1, vertex1->next, vertex2,
+					 vertex2->next)) != GLU_NO_ERROR)
+	    return test;
+   }
+   return GLU_NO_ERROR;
+}
+
+static void
+add_new_exterior(GLUtriangulatorObj * tobj, tess_contour * contour)
+{
+   contour->type = GLU_EXTERIOR;
+   contour->next = NULL;
+   contour->previous = tobj->last_contour;
+   tobj->last_contour->next = contour;
+   tobj->last_contour = contour;
+}
+
+static void
+add_new_interior(GLUtriangulatorObj * tobj,
+		 tess_contour * outer, tess_contour * contour)
+{
+   contour->type = GLU_INTERIOR;
+   contour->next = outer->next;
+   contour->previous = outer;
+   if (outer->next != NULL)
+      outer->next->previous = contour;
+   outer->next = contour;
+   if (tobj->last_contour == outer)
+      tobj->last_contour = contour;
+}
+
+static void
+add_interior_with_hierarchy_check(GLUtriangulatorObj * tobj,
+				  tess_contour * outer,
+				  tess_contour * contour)
+{
+   tess_contour *ptr;
+
+   /* for all interiors of outer check if they are interior of contour */
+   /* if so, change that interior to exterior and move it of of the */
+   /* interior sequence */
+   if (outer->next != NULL && outer->next->type == GLU_INTERIOR) {
+      GLenum test;
+
+      for (ptr = outer->next; ptr != NULL && ptr->type == GLU_INTERIOR;
+	   ptr = ptr->next) {
+	 test = is_contour_contained_in(ptr, contour);
+	 switch (test) {
+	 case GLU_INTERIOR:
+	    /* contour is contained in one of the interiors */
+	    /* check if possibly contained in other exteriors */
+	    /* move ptr to first EXTERIOR */
+	    for (; ptr != NULL && ptr->type == GLU_INTERIOR; ptr = ptr->next);
+	    if (ptr == NULL)
+	       /* another exterior */
+	       add_new_exterior(tobj, contour);
+	    else
+	       add_exterior_with_check(tobj, ptr, contour);
+	    return;
+	 case GLU_EXTERIOR:
+	    /* one of the interiors is contained in the contour */
+	    /* change it to EXTERIOR, and shift it away from the */
+	    /* interior sequence */
+	    shift_interior_to_exterior(tobj, ptr);
+	    break;
+	 case GLU_NO_ERROR:
+	    /* disjoint */
+	    break;
+	 default:
+	    abort();
+	 }
+      }
+   }
+   /* add contour to the interior sequence */
+   add_new_interior(tobj, outer, contour);
+}
+
+static void
+reverse_hierarchy_and_add_exterior(GLUtriangulatorObj * tobj,
+				   tess_contour * outer,
+				   tess_contour * contour)
+{
+   tess_contour *ptr;
+
+   /* reverse INTERIORS to EXTERIORS */
+   /* any INTERIORS? */
+   if (outer->next != NULL && outer->next->type == GLU_INTERIOR)
+      for (ptr = outer->next; ptr != NULL && ptr->type == GLU_INTERIOR;
+	   ptr = ptr->next) ptr->type = GLU_EXTERIOR;
+   /* the outer now becomes inner */
+   outer->type = GLU_INTERIOR;
+   /* contour is the EXTERIOR */
+   contour->next = outer;
+   if (tobj->contours == outer) {
+      /* first contour beeing reversed */
+      contour->previous = NULL;
+      tobj->contours = contour;
+   }
+   else {
+      outer->previous->next = contour;
+      contour->previous = outer->previous;
+   }
+   outer->previous = contour;
+}
+
+static void
+shift_interior_to_exterior(GLUtriangulatorObj * tobj, tess_contour * contour)
+{
+   contour->previous->next = contour->next;
+   if (contour->next != NULL)
+      contour->next->previous = contour->previous;
+   else
+      tobj->last_contour = contour->previous;
+}
+
+static void
+add_exterior_with_check(GLUtriangulatorObj * tobj,
+			tess_contour * outer, tess_contour * contour)
+{
+   GLenum test;
+
+   /* this contour might be interior to further exteriors - check */
+   /* if not, just add as a new exterior */
+   for (; outer != NULL && outer->type == GLU_EXTERIOR; outer = outer->next) {
+      test = is_contour_contained_in(outer, contour);
+      switch (test) {
+      case GLU_INTERIOR:
+	 /* now we have to check if contour is inside interiors */
+	 /* or not */
+	 /* any interiors? */
+	 if (outer->next != NULL && outer->next->type == GLU_INTERIOR) {
+	    /* for all interior, check if inside any of them */
+	    /* if not inside any of interiors, its another */
+	    /* interior */
+	    /* or it may contain some interiors, then change */
+	    /* the contained interiors to exterior ones */
+	    add_interior_with_hierarchy_check(tobj, outer, contour);
+	 }
+	 else {
+	    /* not in interior, add as new interior contour */
+	    add_new_interior(tobj, outer, contour);
+	 }
+	 return;
+      case GLU_NO_ERROR:
+	 /* disjoint */
+	 break;
+      default:
+	 abort();
+      }
+   }
+   /* add contour to the exterior sequence */
+   add_new_exterior(tobj, contour);
+}
+
+void
+tess_handle_holes(GLUtriangulatorObj * tobj)
+{
+   tess_contour *contour, *hole;
+   GLenum exterior_orientation;
+
+   /* verify hole orientation */
+   for (contour = tobj->contours; contour != NULL;) {
+      exterior_orientation = contour->orientation;
+      for (contour = contour->next;
+	   contour != NULL && contour->type == GLU_INTERIOR;
+	   contour = contour->next) {
+	 if (contour->orientation == exterior_orientation) {
+	    tess_call_user_error(tobj, GLU_TESS_ERROR5);
+	    return;
+	 }
+      }
+   }
+   /* now cut-out holes */
+   for (contour = tobj->contours; contour != NULL;) {
+      hole = contour->next;
+      while (hole != NULL && hole->type == GLU_INTERIOR) {
+	 if (cut_out_hole(tobj, contour, hole) == GLU_ERROR)
+	    return;
+	 hole = contour->next;
+      }
+      contour = contour->next;
+   }
+}
+
+static GLenum
+cut_out_hole(GLUtriangulatorObj * tobj,
+	     tess_contour * contour, tess_contour * hole)
+{
+   tess_contour *tmp_hole;
+   tess_vertex *v1, *v2, *tmp_vertex;
+   GLuint vertex1_cnt, vertex2_cnt, tmp_vertex_cnt;
+   GLuint i, j, k;
+   GLenum test = 0;
+
+   /* find an edge connecting contour and hole not intersecting any other */
+   /* edge belonging to either the contour or any of the other holes */
+   for (v1 = contour->vertices, vertex1_cnt = contour->vertex_cnt, i = 0;
+	i < vertex1_cnt; i++, v1 = v1->next) {
+      for (v2 = hole->vertices, vertex2_cnt = hole->vertex_cnt, j = 0;
+	   j < vertex2_cnt; j++, v2 = v2->next) {
+	 /* does edge (v1,v2) intersect any edge of contour */
+	 for (tmp_vertex = contour->vertices, tmp_vertex_cnt =
+	      contour->vertex_cnt, k = 0; k < tmp_vertex_cnt;
+	      tmp_vertex = tmp_vertex->next, k++) {
+	    /* skip edge tests for edges directly connected */
+	    if (v1 == tmp_vertex || v1 == tmp_vertex->next)
+	       continue;
+	    test = edge_edge_intersect(v1, v2, tmp_vertex, tmp_vertex->next);
+	    if (test != GLU_NO_ERROR)
+	       break;
+	 }
+	 if (test == GLU_NO_ERROR) {
+	    /* does edge (v1,v2) intersect any edge of hole */
+	    for (tmp_vertex = hole->vertices,
+		 tmp_vertex_cnt = hole->vertex_cnt, k = 0;
+		 k < tmp_vertex_cnt; tmp_vertex = tmp_vertex->next, k++) {
+	       /* skip edge tests for edges directly connected */
+	       if (v2 == tmp_vertex || v2 == tmp_vertex->next)
+		  continue;
+	       test =
+		  edge_edge_intersect(v1, v2, tmp_vertex, tmp_vertex->next);
+	       if (test != GLU_NO_ERROR)
+		  break;
+	    }
+	    if (test == GLU_NO_ERROR) {
+	       /* does edge (v1,v2) intersect any other hole? */
+	       for (tmp_hole = hole->next;
+		    tmp_hole != NULL && tmp_hole->type == GLU_INTERIOR;
+		    tmp_hole = tmp_hole->next) {
+		  /* does edge (v1,v2) intersect any edge of hole */
+		  for (tmp_vertex = tmp_hole->vertices,
+		       tmp_vertex_cnt = tmp_hole->vertex_cnt, k = 0;
+		       k < tmp_vertex_cnt; tmp_vertex = tmp_vertex->next, k++) {
+		     test = edge_edge_intersect(v1, v2, tmp_vertex,
+						tmp_vertex->next);
+		     if (test != GLU_NO_ERROR)
+			break;
+		  }
+		  if (test != GLU_NO_ERROR)
+		     break;
+	       }
+	    }
+	 }
+	 if (test == GLU_NO_ERROR) {
+	    /* edge (v1,v2) is good for eliminating the hole */
+	    if (merge_hole_with_contour(tobj, contour, hole, v1, v2)
+		== GLU_NO_ERROR)
+	       return GLU_NO_ERROR;
+	    else
+	       return GLU_ERROR;
+	 }
+      }
+   }
+   /* other holes are blocking all possible connections of hole */
+   /* with contour, we shift this hole as the last hole and retry */
+   for (tmp_hole = hole;
+	tmp_hole != NULL && tmp_hole->type == GLU_INTERIOR;
+	tmp_hole = tmp_hole->next);
+   contour->next = hole->next;
+   hole->next->previous = contour;
+   if (tmp_hole == NULL) {
+      /* last EXTERIOR contour, shift hole as last contour */
+      hole->next = NULL;
+      hole->previous = tobj->last_contour;
+      tobj->last_contour->next = hole;
+      tobj->last_contour = hole;
+   }
+   else {
+      tmp_hole->previous->next = hole;
+      hole->previous = tmp_hole->previous;
+      tmp_hole->previous = hole;
+      hole->next = tmp_hole;
+   }
+   hole = contour->next;
+   /* try once again - recurse */
+   return cut_out_hole(tobj, contour, hole);
+}
+
+static GLenum
+merge_hole_with_contour(GLUtriangulatorObj * tobj,
+			tess_contour * contour,
+			tess_contour * hole,
+			tess_vertex * v1, tess_vertex * v2)
+{
+   tess_vertex *v1_new, *v2_new;
+
+   /* make copies of v1 and v2, place them respectively after their originals */
+   if ((v1_new = (tess_vertex *) malloc(sizeof(tess_vertex))) == NULL) {
+      tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+      return GLU_ERROR;
+   }
+   if ((v2_new = (tess_vertex *) malloc(sizeof(tess_vertex))) == NULL) {
+      tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+      return GLU_ERROR;
+   }
+   v1_new->edge_flag = GL_TRUE;
+   v1_new->data = v1->data;
+   v1_new->location[0] = v1->location[0];
+   v1_new->location[1] = v1->location[1];
+   v1_new->location[2] = v1->location[2];
+   v1_new->x = v1->x;
+   v1_new->y = v1->y;
+   v1_new->shadow_vertex = v1;
+   v1->shadow_vertex = v1_new;
+   v1_new->next = v1->next;
+   v1_new->previous = v1;
+   v1->next->previous = v1_new;
+   v1->next = v1_new;
+   v2_new->edge_flag = GL_TRUE;
+   v2_new->data = v2->data;
+   v2_new->location[0] = v2->location[0];
+   v2_new->location[1] = v2->location[1];
+   v2_new->location[2] = v2->location[2];
+   v2_new->x = v2->x;
+   v2_new->y = v2->y;
+   v2_new->shadow_vertex = v2;
+   v2->shadow_vertex = v2_new;
+   v2_new->next = v2->next;
+   v2_new->previous = v2;
+   v2->next->previous = v2_new;
+   v2->next = v2_new;
+   /* link together the two lists */
+   v1->next = v2_new;
+   v2_new->previous = v1;
+   v2->next = v1_new;
+   v1_new->previous = v2;
+   /* update the vertex count of the contour */
+   contour->vertex_cnt += hole->vertex_cnt + 2;
+   /* remove the INTERIOR contour */
+   contour->next = hole->next;
+   if (hole->next != NULL)
+      hole->next->previous = contour;
+   free(hole);
+   /* update tobj structure */
+   --(tobj->contour_cnt);
+   if (contour->last_vertex == v1)
+      contour->last_vertex = v1_new;
+   /* mark two vertices with edge_flag */
+   v2->edge_flag = GL_FALSE;
+   v1->edge_flag = GL_FALSE;
+   return GLU_NO_ERROR;
+}

src/glu/mini/project.c

@@ -0,0 +1,402 @@
+/* $Id: project.c,v 1.1.2.1 2003/03/21 13:02:18 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <stdio.h>
+#include <string.h>
+#include <math.h>
+#include "gluP.h"
+#endif
+
+
+/*
+ * This code was contributed by Marc Buffat (buffat@mecaflu.ec-lyon.fr).
+ * Thanks Marc!!!
+ */
+
+
+
+/* implementation de gluProject et gluUnproject */
+/* M. Buffat 17/2/95 */
+
+
+
+/*
+ * Transform a point (column vector) by a 4x4 matrix.  I.e.  out = m * in
+ * Input:  m - the 4x4 matrix
+ *         in - the 4x1 vector
+ * Output:  out - the resulting 4x1 vector.
+ */
+static void
+transform_point(GLdouble out[4], const GLdouble m[16], const GLdouble in[4])
+{
+#define M(row,col)  m[col*4+row]
+   out[0] =
+      M(0, 0) * in[0] + M(0, 1) * in[1] + M(0, 2) * in[2] + M(0, 3) * in[3];
+   out[1] =
+      M(1, 0) * in[0] + M(1, 1) * in[1] + M(1, 2) * in[2] + M(1, 3) * in[3];
+   out[2] =
+      M(2, 0) * in[0] + M(2, 1) * in[1] + M(2, 2) * in[2] + M(2, 3) * in[3];
+   out[3] =
+      M(3, 0) * in[0] + M(3, 1) * in[1] + M(3, 2) * in[2] + M(3, 3) * in[3];
+#undef M
+}
+
+
+
+
+/*
+ * Perform a 4x4 matrix multiplication  (product = a x b).
+ * Input:  a, b - matrices to multiply
+ * Output:  product - product of a and b
+ */
+static void
+matmul(GLdouble * product, const GLdouble * a, const GLdouble * b)
+{
+   /* This matmul was contributed by Thomas Malik */
+   GLdouble temp[16];
+   GLint i;
+
+#define A(row,col)  a[(col<<2)+row]
+#define B(row,col)  b[(col<<2)+row]
+#define T(row,col)  temp[(col<<2)+row]
+
+   /* i-te Zeile */
+   for (i = 0; i < 4; i++) {
+      T(i, 0) =
+	 A(i, 0) * B(0, 0) + A(i, 1) * B(1, 0) + A(i, 2) * B(2, 0) + A(i,
+								       3) *
+	 B(3, 0);
+      T(i, 1) =
+	 A(i, 0) * B(0, 1) + A(i, 1) * B(1, 1) + A(i, 2) * B(2, 1) + A(i,
+								       3) *
+	 B(3, 1);
+      T(i, 2) =
+	 A(i, 0) * B(0, 2) + A(i, 1) * B(1, 2) + A(i, 2) * B(2, 2) + A(i,
+								       3) *
+	 B(3, 2);
+      T(i, 3) =
+	 A(i, 0) * B(0, 3) + A(i, 1) * B(1, 3) + A(i, 2) * B(2, 3) + A(i,
+								       3) *
+	 B(3, 3);
+   }
+
+#undef A
+#undef B
+#undef T
+   MEMCPY(product, temp, 16 * sizeof(GLdouble));
+}
+
+
+
+/*
+ * Compute inverse of 4x4 transformation matrix.
+ * Code contributed by Jacques Leroy jle@star.be
+ * Return GL_TRUE for success, GL_FALSE for failure (singular matrix)
+ */
+static GLboolean
+invert_matrix(const GLdouble * m, GLdouble * out)
+{
+/* NB. OpenGL Matrices are COLUMN major. */
+#define SWAP_ROWS(a, b) { GLdouble *_tmp = a; (a)=(b); (b)=_tmp; }
+#define MAT(m,r,c) (m)[(c)*4+(r)]
+
+   GLdouble wtmp[4][8];
+   GLdouble m0, m1, m2, m3, s;
+   GLdouble *r0, *r1, *r2, *r3;
+
+   r0 = wtmp[0], r1 = wtmp[1], r2 = wtmp[2], r3 = wtmp[3];
+
+   r0[0] = MAT(m, 0, 0), r0[1] = MAT(m, 0, 1),
+      r0[2] = MAT(m, 0, 2), r0[3] = MAT(m, 0, 3),
+      r0[4] = 1.0, r0[5] = r0[6] = r0[7] = 0.0,
+      r1[0] = MAT(m, 1, 0), r1[1] = MAT(m, 1, 1),
+      r1[2] = MAT(m, 1, 2), r1[3] = MAT(m, 1, 3),
+      r1[5] = 1.0, r1[4] = r1[6] = r1[7] = 0.0,
+      r2[0] = MAT(m, 2, 0), r2[1] = MAT(m, 2, 1),
+      r2[2] = MAT(m, 2, 2), r2[3] = MAT(m, 2, 3),
+      r2[6] = 1.0, r2[4] = r2[5] = r2[7] = 0.0,
+      r3[0] = MAT(m, 3, 0), r3[1] = MAT(m, 3, 1),
+      r3[2] = MAT(m, 3, 2), r3[3] = MAT(m, 3, 3),
+      r3[7] = 1.0, r3[4] = r3[5] = r3[6] = 0.0;
+
+   /* choose pivot - or die */
+   if (fabs(r3[0]) > fabs(r2[0]))
+      SWAP_ROWS(r3, r2);
+   if (fabs(r2[0]) > fabs(r1[0]))
+      SWAP_ROWS(r2, r1);
+   if (fabs(r1[0]) > fabs(r0[0]))
+      SWAP_ROWS(r1, r0);
+   if (0.0 == r0[0])
+      return GL_FALSE;
+
+   /* eliminate first variable     */
+   m1 = r1[0] / r0[0];
+   m2 = r2[0] / r0[0];
+   m3 = r3[0] / r0[0];
+   s = r0[1];
+   r1[1] -= m1 * s;
+   r2[1] -= m2 * s;
+   r3[1] -= m3 * s;
+   s = r0[2];
+   r1[2] -= m1 * s;
+   r2[2] -= m2 * s;
+   r3[2] -= m3 * s;
+   s = r0[3];
+   r1[3] -= m1 * s;
+   r2[3] -= m2 * s;
+   r3[3] -= m3 * s;
+   s = r0[4];
+   if (s != 0.0) {
+      r1[4] -= m1 * s;
+      r2[4] -= m2 * s;
+      r3[4] -= m3 * s;
+   }
+   s = r0[5];
+   if (s != 0.0) {
+      r1[5] -= m1 * s;
+      r2[5] -= m2 * s;
+      r3[5] -= m3 * s;
+   }
+   s = r0[6];
+   if (s != 0.0) {
+      r1[6] -= m1 * s;
+      r2[6] -= m2 * s;
+      r3[6] -= m3 * s;
+   }
+   s = r0[7];
+   if (s != 0.0) {
+      r1[7] -= m1 * s;
+      r2[7] -= m2 * s;
+      r3[7] -= m3 * s;
+   }
+
+   /* choose pivot - or die */
+   if (fabs(r3[1]) > fabs(r2[1]))
+      SWAP_ROWS(r3, r2);
+   if (fabs(r2[1]) > fabs(r1[1]))
+      SWAP_ROWS(r2, r1);
+   if (0.0 == r1[1])
+      return GL_FALSE;
+
+   /* eliminate second variable */
+   m2 = r2[1] / r1[1];
+   m3 = r3[1] / r1[1];
+   r2[2] -= m2 * r1[2];
+   r3[2] -= m3 * r1[2];
+   r2[3] -= m2 * r1[3];
+   r3[3] -= m3 * r1[3];
+   s = r1[4];
+   if (0.0 != s) {
+      r2[4] -= m2 * s;
+      r3[4] -= m3 * s;
+   }
+   s = r1[5];
+   if (0.0 != s) {
+      r2[5] -= m2 * s;
+      r3[5] -= m3 * s;
+   }
+   s = r1[6];
+   if (0.0 != s) {
+      r2[6] -= m2 * s;
+      r3[6] -= m3 * s;
+   }
+   s = r1[7];
+   if (0.0 != s) {
+      r2[7] -= m2 * s;
+      r3[7] -= m3 * s;
+   }
+
+   /* choose pivot - or die */
+   if (fabs(r3[2]) > fabs(r2[2]))
+      SWAP_ROWS(r3, r2);
+   if (0.0 == r2[2])
+      return GL_FALSE;
+
+   /* eliminate third variable */
+   m3 = r3[2] / r2[2];
+   r3[3] -= m3 * r2[3], r3[4] -= m3 * r2[4],
+      r3[5] -= m3 * r2[5], r3[6] -= m3 * r2[6], r3[7] -= m3 * r2[7];
+
+   /* last check */
+   if (0.0 == r3[3])
+      return GL_FALSE;
+
+   s = 1.0 / r3[3];		/* now back substitute row 3 */
+   r3[4] *= s;
+   r3[5] *= s;
+   r3[6] *= s;
+   r3[7] *= s;
+
+   m2 = r2[3];			/* now back substitute row 2 */
+   s = 1.0 / r2[2];
+   r2[4] = s * (r2[4] - r3[4] * m2), r2[5] = s * (r2[5] - r3[5] * m2),
+      r2[6] = s * (r2[6] - r3[6] * m2), r2[7] = s * (r2[7] - r3[7] * m2);
+   m1 = r1[3];
+   r1[4] -= r3[4] * m1, r1[5] -= r3[5] * m1,
+      r1[6] -= r3[6] * m1, r1[7] -= r3[7] * m1;
+   m0 = r0[3];
+   r0[4] -= r3[4] * m0, r0[5] -= r3[5] * m0,
+      r0[6] -= r3[6] * m0, r0[7] -= r3[7] * m0;
+
+   m1 = r1[2];			/* now back substitute row 1 */
+   s = 1.0 / r1[1];
+   r1[4] = s * (r1[4] - r2[4] * m1), r1[5] = s * (r1[5] - r2[5] * m1),
+      r1[6] = s * (r1[6] - r2[6] * m1), r1[7] = s * (r1[7] - r2[7] * m1);
+   m0 = r0[2];
+   r0[4] -= r2[4] * m0, r0[5] -= r2[5] * m0,
+      r0[6] -= r2[6] * m0, r0[7] -= r2[7] * m0;
+
+   m0 = r0[1];			/* now back substitute row 0 */
+   s = 1.0 / r0[0];
+   r0[4] = s * (r0[4] - r1[4] * m0), r0[5] = s * (r0[5] - r1[5] * m0),
+      r0[6] = s * (r0[6] - r1[6] * m0), r0[7] = s * (r0[7] - r1[7] * m0);
+
+   MAT(out, 0, 0) = r0[4];
+   MAT(out, 0, 1) = r0[5], MAT(out, 0, 2) = r0[6];
+   MAT(out, 0, 3) = r0[7], MAT(out, 1, 0) = r1[4];
+   MAT(out, 1, 1) = r1[5], MAT(out, 1, 2) = r1[6];
+   MAT(out, 1, 3) = r1[7], MAT(out, 2, 0) = r2[4];
+   MAT(out, 2, 1) = r2[5], MAT(out, 2, 2) = r2[6];
+   MAT(out, 2, 3) = r2[7], MAT(out, 3, 0) = r3[4];
+   MAT(out, 3, 1) = r3[5], MAT(out, 3, 2) = r3[6];
+   MAT(out, 3, 3) = r3[7];
+
+   return GL_TRUE;
+
+#undef MAT
+#undef SWAP_ROWS
+}
+
+
+
+/* projection du point (objx,objy,obz) sur l'ecran (winx,winy,winz) */
+GLint GLAPIENTRY
+gluProject(GLdouble objx, GLdouble objy, GLdouble objz,
+	   const GLdouble model[16], const GLdouble proj[16],
+	   const GLint viewport[4],
+	   GLdouble * winx, GLdouble * winy, GLdouble * winz)
+{
+   /* matrice de transformation */
+   GLdouble in[4], out[4];
+
+   /* initilise la matrice et le vecteur a transformer */
+   in[0] = objx;
+   in[1] = objy;
+   in[2] = objz;
+   in[3] = 1.0;
+   transform_point(out, model, in);
+   transform_point(in, proj, out);
+
+   /* d'ou le resultat normalise entre -1 et 1 */
+   if (in[3] == 0.0)
+      return GL_FALSE;
+
+   in[0] /= in[3];
+   in[1] /= in[3];
+   in[2] /= in[3];
+
+   /* en coordonnees ecran */
+   *winx = viewport[0] + (1 + in[0]) * viewport[2] / 2;
+   *winy = viewport[1] + (1 + in[1]) * viewport[3] / 2;
+   /* entre 0 et 1 suivant z */
+   *winz = (1 + in[2]) / 2;
+   return GL_TRUE;
+}
+
+
+
+/* transformation du point ecran (winx,winy,winz) en point objet */
+GLint GLAPIENTRY
+gluUnProject(GLdouble winx, GLdouble winy, GLdouble winz,
+	     const GLdouble model[16], const GLdouble proj[16],
+	     const GLint viewport[4],
+	     GLdouble * objx, GLdouble * objy, GLdouble * objz)
+{
+   /* matrice de transformation */
+   GLdouble m[16], A[16];
+   GLdouble in[4], out[4];
+
+   /* transformation coordonnees normalisees entre -1 et 1 */
+   in[0] = (winx - viewport[0]) * 2 / viewport[2] - 1.0;
+   in[1] = (winy - viewport[1]) * 2 / viewport[3] - 1.0;
+   in[2] = 2 * winz - 1.0;
+   in[3] = 1.0;
+
+   /* calcul transformation inverse */
+   matmul(A, proj, model);
+   invert_matrix(A, m);
+
+   /* d'ou les coordonnees objets */
+   transform_point(out, m, in);
+   if (out[3] == 0.0)
+      return GL_FALSE;
+   *objx = out[0] / out[3];
+   *objy = out[1] / out[3];
+   *objz = out[2] / out[3];
+   return GL_TRUE;
+}
+
+
+/*
+ * New in GLU 1.3
+ * This is like gluUnProject but also takes near and far DepthRange values.
+ */
+#ifdef GLU_VERSION_1_3
+GLint GLAPIENTRY
+gluUnProject4(GLdouble winx, GLdouble winy, GLdouble winz, GLdouble clipw,
+	      const GLdouble modelMatrix[16],
+	      const GLdouble projMatrix[16],
+	      const GLint viewport[4],
+	      GLclampd nearZ, GLclampd farZ,
+	      GLdouble * objx, GLdouble * objy, GLdouble * objz,
+	      GLdouble * objw)
+{
+   /* matrice de transformation */
+   GLdouble m[16], A[16];
+   GLdouble in[4], out[4];
+   GLdouble z = nearZ + winz * (farZ - nearZ);
+
+   /* transformation coordonnees normalisees entre -1 et 1 */
+   in[0] = (winx - viewport[0]) * 2 / viewport[2] - 1.0;
+   in[1] = (winy - viewport[1]) * 2 / viewport[3] - 1.0;
+   in[2] = 2.0 * z - 1.0;
+   in[3] = clipw;
+
+   /* calcul transformation inverse */
+   matmul(A, projMatrix, modelMatrix);
+   invert_matrix(A, m);
+
+   /* d'ou les coordonnees objets */
+   transform_point(out, m, in);
+   if (out[3] == 0.0)
+      return GL_FALSE;
+   *objx = out[0] / out[3];
+   *objy = out[1] / out[3];
+   *objz = out[2] / out[3];
+   *objw = out[3];
+   return GL_TRUE;
+}
+#endif

src/glu/mini/quadric.c

@@ -0,0 +1,774 @@
+/* $Id: quadric.c,v 1.1.2.1 2003/03/21 13:02:22 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1999-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/* TODO:
+ *   texture coordinate support
+ *   flip normals according to orientation
+ *   there's still some inside/outside orientation bugs in possibly all
+ *     but the sphere function
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "gluP.h"
+#endif
+
+
+
+#ifndef M_PI
+#  define M_PI (3.1415926)
+#endif
+
+
+/*
+ * Convert degrees to radians:
+ */
+#define DEG_TO_RAD(A)   ((A)*(M_PI/180.0))
+
+
+/*
+ * Sin and Cos for degree angles:
+ */
+#define SIND( A )   sin( (A)*(M_PI/180.0) )
+#define COSD( A)    cos( (A)*(M_PI/180.0) )
+
+
+/*
+ * Texture coordinates if texture flag is set
+ */
+#define TXTR_COORD(x,y)    if (qobj->TextureFlag) glTexCoord2f(x,y);
+
+
+
+struct GLUquadric
+{
+   GLenum DrawStyle;		/* GLU_FILL, LINE, SILHOUETTE, or POINT */
+   GLenum Orientation;		/* GLU_INSIDE or GLU_OUTSIDE */
+   GLboolean TextureFlag;	/* Generate texture coords? */
+   GLenum Normals;		/* GLU_NONE, GLU_FLAT, or GLU_SMOOTH */
+   void (GLCALLBACK * ErrorFunc) (GLenum err);	/* Error handler callback function */
+};
+
+
+
+/*
+ * Process a GLU error.
+ */
+static void
+quadric_error(GLUquadricObj * qobj, GLenum error, const char *msg)
+{
+   /* Call the error call back function if any */
+   if (qobj->ErrorFunc) {
+      (*qobj->ErrorFunc) (error);
+   }
+   /* Print a message to stdout if MESA_DEBUG variable is defined */
+   if (getenv("MESA_DEBUG")) {
+      fprintf(stderr, "GLUError: %s: %s\n", (char *) gluErrorString(error),
+	      msg);
+   }
+}
+
+
+
+
+GLUquadricObj *GLAPIENTRY
+gluNewQuadric(void)
+{
+   GLUquadricObj *q;
+
+   q = (GLUquadricObj *) malloc(sizeof(struct GLUquadric));
+   if (q) {
+      q->DrawStyle = GLU_FILL;
+      q->Orientation = GLU_OUTSIDE;
+      q->TextureFlag = GL_FALSE;
+      q->Normals = GLU_SMOOTH;
+      q->ErrorFunc = NULL;
+   }
+   return q;
+}
+
+
+
+void GLAPIENTRY
+gluDeleteQuadric(GLUquadricObj * state)
+{
+   if (state) {
+      free((void *) state);
+   }
+}
+
+
+
+/*
+ * Set the drawing style to be GLU_FILL, GLU_LINE, GLU_SILHOUETTE,
+ * or GLU_POINT.
+ */
+void GLAPIENTRY
+gluQuadricDrawStyle(GLUquadricObj * quadObject, GLenum drawStyle)
+{
+   if (quadObject && (drawStyle == GLU_FILL || drawStyle == GLU_LINE
+		      || drawStyle == GLU_SILHOUETTE
+		      || drawStyle == GLU_POINT)) {
+      quadObject->DrawStyle = drawStyle;
+   }
+   else {
+      quadric_error(quadObject, GLU_INVALID_ENUM, "qluQuadricDrawStyle");
+   }
+}
+
+
+
+/*
+ * Set the orientation to GLU_INSIDE or GLU_OUTSIDE.
+ */
+void GLAPIENTRY
+gluQuadricOrientation(GLUquadricObj * quadObject, GLenum orientation)
+{
+   if (quadObject
+       && (orientation == GLU_INSIDE || orientation == GLU_OUTSIDE)) {
+      quadObject->Orientation = orientation;
+   }
+   else {
+      quadric_error(quadObject, GLU_INVALID_ENUM, "qluQuadricOrientation");
+   }
+}
+
+
+
+/*
+ * Set the error handler callback function.
+ */
+void GLAPIENTRY
+gluQuadricCallback(GLUquadricObj * qobj,
+		   GLenum which, void (GLCALLBACK * fn) ())
+{
+   /*
+    * UGH, this is a mess!  I thought ANSI was a standard.
+    */
+   if (qobj && which == GLU_ERROR) {
+#ifdef __CYGWIN32__
+      qobj->ErrorFunc = (void (GLCALLBACKPCAST) (GLenum)) fn;
+#elif defined(OPENSTEP)
+      qobj->ErrorFunc = (void (*)(GLenum)) fn;
+#elif defined(_WIN32)
+      qobj->ErrorFunc = (void (GLCALLBACK *) (int)) fn;
+#elif defined(__STORM__)
+      qobj->ErrorFunc = (void (GLCALLBACK *) (GLenum)) fn;
+#elif defined(__BEOS__)
+      qobj->ErrorFunc = (void (*)(GLenum)) fn;
+#else
+      qobj->ErrorFunc = (void (GLCALLBACK *) ()) fn;
+#endif
+   }
+}
+
+
+void GLAPIENTRY
+gluQuadricNormals(GLUquadricObj * quadObject, GLenum normals)
+{
+   if (quadObject
+       && (normals == GLU_NONE || normals == GLU_FLAT
+	   || normals == GLU_SMOOTH)) {
+      quadObject->Normals = normals;
+   }
+}
+
+
+void GLAPIENTRY
+gluQuadricTexture(GLUquadricObj * quadObject, GLboolean textureCoords)
+{
+   if (quadObject) {
+      quadObject->TextureFlag = textureCoords;
+   }
+}
+
+
+
+
+/*
+ * Call glNormal3f after scaling normal to unit length.
+ */
+static void
+normal3f(GLfloat x, GLfloat y, GLfloat z)
+{
+}
+
+
+
+void GLAPIENTRY
+gluCylinder(GLUquadricObj * qobj,
+	    GLdouble baseRadius, GLdouble topRadius,
+	    GLdouble height, GLint slices, GLint stacks)
+{
+   GLdouble da, r, dr, dz;
+   GLfloat x, y, z, nz, nsign;
+   GLint i, j;
+
+   if (qobj->Orientation == GLU_INSIDE) {
+      nsign = -1.0;
+   }
+   else {
+      nsign = 1.0;
+   }
+
+   da = 2.0 * M_PI / slices;
+   dr = (topRadius - baseRadius) / stacks;
+   dz = height / stacks;
+   nz = (baseRadius - topRadius) / height;	/* Z component of normal vectors */
+
+   if (qobj->DrawStyle == GLU_POINT) {
+      glBegin(GL_POINTS);
+      for (i = 0; i < slices; i++) {
+	 x = cos(i * da);
+	 y = sin(i * da);
+	 normal3f(x * nsign, y * nsign, nz * nsign);
+
+	 z = 0.0;
+	 r = baseRadius;
+	 for (j = 0; j <= stacks; j++) {
+	    glVertex3f(x * r, y * r, z);
+	    z += dz;
+	    r += dr;
+	 }
+      }
+      glEnd();
+   }
+   else if (qobj->DrawStyle == GLU_LINE || qobj->DrawStyle == GLU_SILHOUETTE) {
+      /* Draw rings */
+      if (qobj->DrawStyle == GLU_LINE) {
+	 z = 0.0;
+	 r = baseRadius;
+	 for (j = 0; j <= stacks; j++) {
+	    glBegin(GL_LINE_LOOP);
+	    for (i = 0; i < slices; i++) {
+	       x = cos(i * da);
+	       y = sin(i * da);
+	       normal3f(x * nsign, y * nsign, nz * nsign);
+	       glVertex3f(x * r, y * r, z);
+	    }
+	    glEnd();
+	    z += dz;
+	    r += dr;
+	 }
+      }
+      else {
+	 /* draw one ring at each end */
+	 if (baseRadius != 0.0) {
+	    glBegin(GL_LINE_LOOP);
+	    for (i = 0; i < slices; i++) {
+	       x = cos(i * da);
+	       y = sin(i * da);
+	       normal3f(x * nsign, y * nsign, nz * nsign);
+	       glVertex3f(x * baseRadius, y * baseRadius, 0.0);
+	    }
+	    glEnd();
+	    glBegin(GL_LINE_LOOP);
+	    for (i = 0; i < slices; i++) {
+	       x = cos(i * da);
+	       y = sin(i * da);
+	       normal3f(x * nsign, y * nsign, nz * nsign);
+	       glVertex3f(x * topRadius, y * topRadius, height);
+	    }
+	    glEnd();
+	 }
+      }
+      /* draw length lines */
+      glBegin(GL_LINES);
+      for (i = 0; i < slices; i++) {
+	 x = cos(i * da);
+	 y = sin(i * da);
+	 normal3f(x * nsign, y * nsign, nz * nsign);
+	 glVertex3f(x * baseRadius, y * baseRadius, 0.0);
+	 glVertex3f(x * topRadius, y * topRadius, height);
+      }
+      glEnd();
+   }
+   else if (qobj->DrawStyle == GLU_FILL) {
+      GLfloat ds = 1.0 / slices;
+      GLfloat dt = 1.0 / stacks;
+      GLfloat t = 0.0;
+      z = 0.0;
+      r = baseRadius;
+      for (j = 0; j < stacks; j++) {
+	 GLfloat s = 0.0;
+	 glBegin(GL_QUAD_STRIP);
+	 for (i = 0; i <= slices; i++) {
+	    GLfloat x, y;
+	    if (i == slices) {
+	       x = sin(0.0);
+	       y = cos(0.0);
+	    }
+	    else {
+	       x = sin(i * da);
+	       y = cos(i * da);
+	    }
+	    if (nsign == 1.0) {
+	       normal3f(x * nsign, y * nsign, nz * nsign);
+	       TXTR_COORD(s, t);
+	       glVertex3f(x * r, y * r, z);
+	       normal3f(x * nsign, y * nsign, nz * nsign);
+	       TXTR_COORD(s, t + dt);
+	       glVertex3f(x * (r + dr), y * (r + dr), z + dz);
+	    }
+	    else {
+	       normal3f(x * nsign, y * nsign, nz * nsign);
+	       TXTR_COORD(s, t);
+	       glVertex3f(x * r, y * r, z);
+	       normal3f(x * nsign, y * nsign, nz * nsign);
+	       TXTR_COORD(s, t + dt);
+	       glVertex3f(x * (r + dr), y * (r + dr), z + dz);
+	    }
+	    s += ds;
+	 }			/* for slices */
+	 glEnd();
+	 r += dr;
+	 t += dt;
+	 z += dz;
+      }				/* for stacks */
+   }
+}
+
+
+
+
+
+void GLAPIENTRY
+gluSphere(GLUquadricObj * qobj, GLdouble radius, GLint slices, GLint stacks)
+{
+   GLfloat rho, drho, theta, dtheta;
+   GLfloat x, y, z;
+   GLfloat s, t, ds, dt;
+   GLint i, j, imin, imax;
+   GLboolean normals;
+   GLfloat nsign;
+
+   if (qobj->Normals == GLU_NONE) {
+      normals = GL_FALSE;
+   }
+   else {
+      normals = GL_TRUE;
+   }
+   if (qobj->Orientation == GLU_INSIDE) {
+      nsign = -1.0;
+   }
+   else {
+      nsign = 1.0;
+   }
+
+   drho = M_PI / (GLfloat) stacks;
+   dtheta = 2.0 * M_PI / (GLfloat) slices;
+
+   /* texturing: s goes from 0.0/0.25/0.5/0.75/1.0 at +y/+x/-y/-x/+y axis */
+   /* t goes from -1.0/+1.0 at z = -radius/+radius (linear along longitudes) */
+   /* cannot use triangle fan on texturing (s coord. at top/bottom tip varies) */
+
+   if (qobj->DrawStyle == GLU_FILL) {
+      if (!qobj->TextureFlag) {
+	 /* draw +Z end as a triangle fan */
+	 glBegin(GL_TRIANGLE_FAN);
+/* 	 glNormal3f(0.0, 0.0, 1.0); */
+	 glVertex3f(0.0, 0.0, nsign * radius);
+	 for (j = 0; j <= slices; j++) {
+	    theta = (j == slices) ? 0.0 : j * dtheta;
+	    x = -sin(theta) * sin(drho);
+	    y = cos(theta) * sin(drho);
+	    z = nsign * cos(drho);
+	    glVertex3f(x * radius, y * radius, z * radius);
+	 }
+	 glEnd();
+      }
+
+      ds = 1.0 / slices;
+      dt = 1.0 / stacks;
+      t = 1.0;			/* because loop now runs from 0 */
+      if (qobj->TextureFlag) {
+	 imin = 0;
+	 imax = stacks;
+      }
+      else {
+	 imin = 1;
+	 imax = stacks - 1;
+      }
+
+      /* draw intermediate stacks as quad strips */
+      for (i = imin; i < imax; i++) {
+	 rho = i * drho;
+	 glBegin(GL_QUAD_STRIP);
+	 s = 0.0;
+	 for (j = 0; j <= slices; j++) {
+	    theta = (j == slices) ? 0.0 : j * dtheta;
+	    x = -sin(theta) * sin(rho);
+	    y = cos(theta) * sin(rho);
+	    z = nsign * cos(rho);
+	    TXTR_COORD(s, t);
+	    glVertex3f(x * radius, y * radius, z * radius);
+	    x = -sin(theta) * sin(rho + drho);
+	    y = cos(theta) * sin(rho + drho);
+	    z = nsign * cos(rho + drho);
+	    TXTR_COORD(s, t - dt);
+	    s += ds;
+	    glVertex3f(x * radius, y * radius, z * radius);
+	 }
+	 glEnd();
+	 t -= dt;
+      }
+
+      if (!qobj->TextureFlag) {
+	 /* draw -Z end as a triangle fan */
+	 glBegin(GL_TRIANGLE_FAN);
+	 glVertex3f(0.0, 0.0, -radius * nsign);
+	 rho = M_PI - drho;
+	 s = 1.0;
+	 t = dt;
+	 for (j = slices; j >= 0; j--) {
+	    theta = (j == slices) ? 0.0 : j * dtheta;
+	    x = -sin(theta) * sin(rho);
+	    y = cos(theta) * sin(rho);
+	    z = nsign * cos(rho);
+	    s -= ds;
+	    glVertex3f(x * radius, y * radius, z * radius);
+	 }
+	 glEnd();
+      }
+   }
+   else if (qobj->DrawStyle == GLU_LINE || qobj->DrawStyle == GLU_SILHOUETTE) {
+      /* draw stack lines */
+      for (i = 1; i < stacks; i++) {	/* stack line at i==stacks-1 was missing here */
+	 rho = i * drho;
+	 glBegin(GL_LINE_LOOP);
+	 for (j = 0; j < slices; j++) {
+	    theta = j * dtheta;
+	    x = cos(theta) * sin(rho);
+	    y = sin(theta) * sin(rho);
+	    z = cos(rho);
+	    glVertex3f(x * radius, y * radius, z * radius);
+	 }
+	 glEnd();
+      }
+      /* draw slice lines */
+      for (j = 0; j < slices; j++) {
+	 theta = j * dtheta;
+	 glBegin(GL_LINE_STRIP);
+	 for (i = 0; i <= stacks; i++) {
+	    rho = i * drho;
+	    x = cos(theta) * sin(rho);
+	    y = sin(theta) * sin(rho);
+	    z = cos(rho);
+	    glVertex3f(x * radius, y * radius, z * radius);
+	 }
+	 glEnd();
+      }
+   }
+   else if (qobj->DrawStyle == GLU_POINT) {
+      /* top and bottom-most points */
+      glBegin(GL_POINTS);
+      glVertex3f(0.0, 0.0, radius);
+      glVertex3f(0.0, 0.0, -radius);
+
+      /* loop over stacks */
+      for (i = 1; i < stacks - 1; i++) {
+	 rho = i * drho;
+	 for (j = 0; j < slices; j++) {
+	    theta = j * dtheta;
+	    x = cos(theta) * sin(rho);
+	    y = sin(theta) * sin(rho);
+	    z = cos(rho);
+	    glVertex3f(x * radius, y * radius, z * radius);
+	 }
+      }
+      glEnd();
+   }
+
+}
+
+
+
+void GLAPIENTRY
+gluDisk(GLUquadricObj * qobj,
+	GLdouble innerRadius, GLdouble outerRadius, GLint slices, GLint loops)
+{
+   GLfloat da, dr;
+#if 0
+   GLdouble a, da;
+   GLfloat r, dr;
+   GLfloat x, y;
+   GLfloat r1, r2, dtc;
+   GLint s, l;
+#endif
+
+
+   da = 2.0 * M_PI / slices;
+   dr = (outerRadius - innerRadius) / (GLfloat) loops;
+
+   switch (qobj->DrawStyle) {
+   case GLU_FILL:
+      {
+	 /* texture of a gluDisk is a cut out of the texture unit square
+	  * x, y in [-outerRadius, +outerRadius]; s, t in [0, 1]
+	  * (linear mapping)
+	  */
+	 GLfloat dtc = 2.0f * outerRadius;
+	 GLfloat sa, ca;
+	 GLfloat r1 = innerRadius;
+	 GLint l;
+	 for (l = 0; l < loops; l++) {
+	    GLfloat r2 = r1 + dr;
+	    if (qobj->Orientation == GLU_OUTSIDE) {
+	       GLint s;
+	       glBegin(GL_QUAD_STRIP);
+	       for (s = 0; s <= slices; s++) {
+		  GLfloat a;
+		  if (s == slices)
+		     a = 0.0;
+		  else
+		     a = s * da;
+		  sa = sin(a);
+		  ca = cos(a);
+		  TXTR_COORD(0.5 + sa * r2 / dtc, 0.5 + ca * r2 / dtc);
+		  glVertex2f(r2 * sa, r2 * ca);
+		  TXTR_COORD(0.5 + sa * r1 / dtc, 0.5 + ca * r1 / dtc);
+		  glVertex2f(r1 * sa, r1 * ca);
+	       }
+	       glEnd();
+	    }
+	    else {
+	       GLint s;
+	       glBegin(GL_QUAD_STRIP);
+	       for (s = slices; s >= 0; s--) {
+		  GLfloat a;
+		  if (s == slices)
+		     a = 0.0;
+		  else
+		     a = s * da;
+		  sa = sin(a);
+		  ca = cos(a);
+		  TXTR_COORD(0.5 - sa * r2 / dtc, 0.5 + ca * r2 / dtc);
+		  glVertex2f(r2 * sa, r2 * ca);
+		  TXTR_COORD(0.5 - sa * r1 / dtc, 0.5 + ca * r1 / dtc);
+		  glVertex2f(r1 * sa, r1 * ca);
+	       }
+	       glEnd();
+	    }
+	    r1 = r2;
+	 }
+	 break;
+      }
+   case GLU_LINE:
+      {
+	 GLint l, s;
+	 /* draw loops */
+	 for (l = 0; l <= loops; l++) {
+	    GLfloat r = innerRadius + l * dr;
+	    glBegin(GL_LINE_LOOP);
+	    for (s = 0; s < slices; s++) {
+	       GLfloat a = s * da;
+	       glVertex2f(r * sin(a), r * cos(a));
+	    }
+	    glEnd();
+	 }
+	 /* draw spokes */
+	 for (s = 0; s < slices; s++) {
+	    GLfloat a = s * da;
+	    GLfloat x = sin(a);
+	    GLfloat y = cos(a);
+	    glBegin(GL_LINE_STRIP);
+	    for (l = 0; l <= loops; l++) {
+	       GLfloat r = innerRadius + l * dr;
+	       glVertex2f(r * x, r * y);
+	    }
+	    glEnd();
+	 }
+	 break;
+      }
+   case GLU_POINT:
+      {
+	 GLint s;
+	 glBegin(GL_POINTS);
+	 for (s = 0; s < slices; s++) {
+	    GLfloat a = s * da;
+	    GLfloat x = sin(a);
+	    GLfloat y = cos(a);
+	    GLint l;
+	    for (l = 0; l <= loops; l++) {
+	       GLfloat r = innerRadius * l * dr;
+	       glVertex2f(r * x, r * y);
+	    }
+	 }
+	 glEnd();
+	 break;
+      }
+   case GLU_SILHOUETTE:
+      {
+	 if (innerRadius != 0.0) {
+	    GLfloat a;
+	    glBegin(GL_LINE_LOOP);
+	    for (a = 0.0; a < 2.0 * M_PI; a += da) {
+	       GLfloat x = innerRadius * sin(a);
+	       GLfloat y = innerRadius * cos(a);
+	       glVertex2f(x, y);
+	    }
+	    glEnd();
+	 }
+	 {
+	    GLfloat a;
+	    glBegin(GL_LINE_LOOP);
+	    for (a = 0; a < 2.0 * M_PI; a += da) {
+	       GLfloat x = outerRadius * sin(a);
+	       GLfloat y = outerRadius * cos(a);
+	       glVertex2f(x, y);
+	    }
+	    glEnd();
+	 }
+	 break;
+      }
+   default:
+      abort();
+   }
+}
+
+
+
+void GLAPIENTRY
+gluPartialDisk(GLUquadricObj * qobj, GLdouble innerRadius,
+	       GLdouble outerRadius, GLint slices, GLint loops,
+	       GLdouble startAngle, GLdouble sweepAngle)
+{
+   if (qobj->DrawStyle == GLU_POINT) {
+      GLint loop, slice;
+      GLdouble radius, delta_radius;
+      GLdouble angle, delta_angle;
+      delta_radius = (outerRadius - innerRadius) / (loops - 1);
+      delta_angle = DEG_TO_RAD((sweepAngle) / (slices - 1));
+      glBegin(GL_POINTS);
+      radius = innerRadius;
+      for (loop = 0; loop < loops; loop++) {
+	 angle = DEG_TO_RAD(startAngle);
+	 for (slice = 0; slice < slices; slice++) {
+	    glVertex2f(radius * sin(angle), radius * cos(angle));
+	    angle += delta_angle;
+	 }
+	 radius += delta_radius;
+      }
+      glEnd();
+   }
+   else if (qobj->DrawStyle == GLU_LINE) {
+      GLint loop, slice;
+      GLdouble radius, delta_radius;
+      GLdouble angle, delta_angle;
+      delta_radius = (outerRadius - innerRadius) / loops;
+      delta_angle = DEG_TO_RAD(sweepAngle / slices);
+      /* draw rings */
+      radius = innerRadius;
+      for (loop = 0; loop < loops; loop++) {
+	 angle = DEG_TO_RAD(startAngle);
+	 glBegin(GL_LINE_STRIP);
+	 for (slice = 0; slice <= slices; slice++) {
+	    glVertex2f(radius * sin(angle), radius * cos(angle));
+	    angle += delta_angle;
+	 }
+	 glEnd();
+	 radius += delta_radius;
+      }
+      /* draw spokes */
+      angle = DEG_TO_RAD(startAngle);
+      for (slice = 0; slice <= slices; slice++) {
+	 radius = innerRadius;
+	 glBegin(GL_LINE_STRIP);
+	 for (loop = 0; loop < loops; loop++) {
+	    glVertex2f(radius * sin(angle), radius * cos(angle));
+	    radius += delta_radius;
+	 }
+	 glEnd();
+	 angle += delta_angle;
+      }
+   }
+   else if (qobj->DrawStyle == GLU_SILHOUETTE) {
+      GLint slice;
+      GLdouble angle, delta_angle;
+      delta_angle = DEG_TO_RAD(sweepAngle / slices);
+      /* draw outer ring */
+      glBegin(GL_LINE_STRIP);
+      angle = DEG_TO_RAD(startAngle);
+      for (slice = 0; slice <= slices; slice++) {
+	 glVertex2f(outerRadius * sin(angle), outerRadius * cos(angle));
+	 angle += delta_angle;
+      }
+      glEnd();
+      /* draw inner ring */
+      if (innerRadius > 0.0) {
+	 glBegin(GL_LINE_STRIP);
+	 angle = DEG_TO_RAD(startAngle);
+	 for (slice = 0; slice < slices; slice++) {
+	    glVertex2f(innerRadius * sin(angle), innerRadius * cos(angle));
+	    angle += delta_angle;
+	 }
+	 glEnd();
+      }
+      /* draw spokes */
+      if (sweepAngle < 360.0) {
+	 GLdouble stopAngle = startAngle + sweepAngle;
+	 glBegin(GL_LINES);
+	 glVertex2f(innerRadius * SIND(startAngle),
+		    innerRadius * COSD(startAngle));
+	 glVertex2f(outerRadius * SIND(startAngle),
+		    outerRadius * COSD(startAngle));
+	 glVertex2f(innerRadius * SIND(stopAngle),
+		    innerRadius * COSD(stopAngle));
+	 glVertex2f(outerRadius * SIND(stopAngle),
+		    outerRadius * COSD(stopAngle));
+	 glEnd();
+      }
+   }
+   else if (qobj->DrawStyle == GLU_FILL) {
+      GLint loop, slice;
+      GLdouble radius, delta_radius;
+      GLdouble angle, delta_angle;
+      delta_radius = (outerRadius - innerRadius) / loops;
+      delta_angle = DEG_TO_RAD(sweepAngle / slices);
+      radius = innerRadius;
+      for (loop = 0; loop < loops; loop++) {
+	 glBegin(GL_QUAD_STRIP);
+	 angle = DEG_TO_RAD(startAngle);
+	 for (slice = 0; slice <= slices; slice++) {
+	    if (qobj->Orientation == GLU_OUTSIDE) {
+	       glVertex2f((radius + delta_radius) * sin(angle),
+			  (radius + delta_radius) * cos(angle));
+	       glVertex2f(radius * sin(angle), radius * cos(angle));
+	    }
+	    else {
+	       glVertex2f(radius * sin(angle), radius * cos(angle));
+	       glVertex2f((radius + delta_radius) * sin(angle),
+			  (radius + delta_radius) * cos(angle));
+	    }
+	    angle += delta_angle;
+	 }
+	 glEnd();
+	 radius += delta_radius;
+      }
+   }
+}

src/glu/mini/tess.c

@@ -0,0 +1,328 @@
+/* $Id: tess.c,v 1.1.2.1 2003/03/21 13:02:23 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * This file is part of the polygon tesselation code contributed by
+ * Bogdan Sikorski
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <math.h>
+#include <stdlib.h>
+#include "tess.h"
+#endif
+
+
+/*
+ * This is ugly, but seems the easiest way to do things to make the
+ * code work under YellowBox for Windows
+ */
+#if defined(OPENSTEP) && defined(CALLBACK)
+#undef CALLBACK
+#define CALLBACK
+#endif
+
+
+static void delete_contours(GLUtriangulatorObj *);
+
+#ifdef __CYGWIN32__
+#define _CALLBACK
+#else
+#define _CALLBACK GLCALLBACK
+#endif
+
+
+static void
+init_callbacks(tess_callbacks * callbacks)
+{
+   callbacks->begin = (void (_CALLBACK *) (GLenum)) 0;
+   callbacks->edgeFlag = (void (_CALLBACK *) (GLboolean)) 0;
+   callbacks->vertex = (void (_CALLBACK *) (void *)) 0;
+   callbacks->end = (void (_CALLBACK *) (void)) 0;
+   callbacks->error = (void (_CALLBACK *) (GLenum)) 0;
+}
+
+void
+tess_call_user_error(GLUtriangulatorObj * tobj, GLenum gluerr)
+{
+   if (tobj->error == GLU_NO_ERROR)
+      tobj->error = gluerr;
+   if (tobj->callbacks.error != NULL)
+      (tobj->callbacks.error) (gluerr);
+}
+
+GLUtriangulatorObj *GLAPIENTRY
+gluNewTess(void)
+{
+   GLUtriangulatorObj *tobj;
+
+   if ((tobj = (GLUtriangulatorObj *)
+	malloc(sizeof(struct GLUtesselator))) == NULL)
+      return NULL;
+   tobj->contours = tobj->last_contour = NULL;
+   init_callbacks(&tobj->callbacks);
+   tobj->error = GLU_NO_ERROR;
+   tobj->current_polygon = NULL;
+   tobj->contour_cnt = 0;
+   return tobj;
+}
+
+
+void GLAPIENTRY
+gluTessCallback(GLUtriangulatorObj * tobj, GLenum which,
+		void (GLCALLBACK * fn) ())
+{
+   switch (which) {
+   case GLU_BEGIN:
+      tobj->callbacks.begin = (void (_CALLBACK *) (GLenum)) fn;
+      break;
+   case GLU_EDGE_FLAG:
+      tobj->callbacks.edgeFlag = (void (_CALLBACK *) (GLboolean)) fn;
+      break;
+   case GLU_VERTEX:
+      tobj->callbacks.vertex = (void (_CALLBACK *) (void *)) fn;
+      break;
+   case GLU_END:
+      tobj->callbacks.end = (void (_CALLBACK *) (void)) fn;
+      break;
+   case GLU_ERROR:
+      tobj->callbacks.error = (void (_CALLBACK *) (GLenum)) fn;
+      break;
+   default:
+      tobj->error = GLU_INVALID_ENUM;
+      break;
+   }
+}
+
+
+
+void GLAPIENTRY
+gluDeleteTess(GLUtriangulatorObj * tobj)
+{
+   if (tobj->error == GLU_NO_ERROR && tobj->contour_cnt)
+      /* was gluEndPolygon called? */
+      tess_call_user_error(tobj, GLU_TESS_ERROR1);
+   /* delete all internal structures */
+   delete_contours(tobj);
+   free(tobj);
+}
+
+
+void GLAPIENTRY
+gluBeginPolygon(GLUtriangulatorObj * tobj)
+{
+/*
+	if(tobj->error!=GLU_NO_ERROR)
+		return;
+*/
+   tobj->error = GLU_NO_ERROR;
+   if (tobj->current_polygon != NULL) {
+      /* gluEndPolygon was not called */
+      tess_call_user_error(tobj, GLU_TESS_ERROR1);
+      /* delete all internal structures */
+      delete_contours(tobj);
+   }
+   else {
+      if ((tobj->current_polygon =
+	   (tess_polygon *) malloc(sizeof(tess_polygon))) == NULL) {
+	 tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+	 return;
+      }
+      tobj->current_polygon->vertex_cnt = 0;
+      tobj->current_polygon->vertices =
+	 tobj->current_polygon->last_vertex = NULL;
+   }
+}
+
+
+void GLAPIENTRY
+gluEndPolygon(GLUtriangulatorObj * tobj)
+{
+   /*tess_contour *contour_ptr; */
+
+   /* there was an error */
+   if (tobj->error != GLU_NO_ERROR)
+      goto end;
+
+   /* check if gluBeginPolygon was called */
+   if (tobj->current_polygon == NULL) {
+      tess_call_user_error(tobj, GLU_TESS_ERROR2);
+      return;
+   }
+   tess_test_polygon(tobj);
+   /* there was an error */
+   if (tobj->error != GLU_NO_ERROR)
+      goto end;
+
+   /* any real contours? */
+   if (tobj->contour_cnt == 0) {
+      /* delete all internal structures */
+      delete_contours(tobj);
+      return;
+   }
+   tess_find_contour_hierarchies(tobj);
+   /* there was an error */
+   if (tobj->error != GLU_NO_ERROR)
+      goto end;
+
+   tess_handle_holes(tobj);
+   /* there was an error */
+   if (tobj->error != GLU_NO_ERROR)
+      goto end;
+
+   /* if no callbacks, nothing to do */
+   if (tobj->callbacks.begin != NULL && tobj->callbacks.vertex != NULL &&
+       tobj->callbacks.end != NULL) {
+      if (tobj->callbacks.edgeFlag == NULL)
+	 tess_tesselate(tobj);
+      else
+	 tess_tesselate_with_edge_flag(tobj);
+   }
+
+ end:
+   /* delete all internal structures */
+   delete_contours(tobj);
+}
+
+
+void GLAPIENTRY
+gluNextContour(GLUtriangulatorObj * tobj, GLenum type)
+{
+   if (tobj->error != GLU_NO_ERROR)
+      return;
+   if (tobj->current_polygon == NULL) {
+      tess_call_user_error(tobj, GLU_TESS_ERROR2);
+      return;
+   }
+   /* first contour? */
+   if (tobj->current_polygon->vertex_cnt)
+      tess_test_polygon(tobj);
+}
+
+
+void GLAPIENTRY
+gluTessVertex(GLUtriangulatorObj * tobj, GLdouble v[3], void *data)
+{
+   tess_polygon *polygon = tobj->current_polygon;
+   tess_vertex *last_vertex_ptr;
+
+   if (tobj->error != GLU_NO_ERROR)
+      return;
+   if (polygon == NULL) {
+      tess_call_user_error(tobj, GLU_TESS_ERROR2);
+      return;
+   }
+   last_vertex_ptr = polygon->last_vertex;
+   if (last_vertex_ptr == NULL) {
+      if ((last_vertex_ptr = (tess_vertex *)
+	   malloc(sizeof(tess_vertex))) == NULL) {
+	 tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+	 return;
+      }
+      polygon->vertices = last_vertex_ptr;
+      polygon->last_vertex = last_vertex_ptr;
+      last_vertex_ptr->data = data;
+      last_vertex_ptr->location[0] = v[0];
+      last_vertex_ptr->location[1] = v[1];
+      last_vertex_ptr->location[2] = v[2];
+      last_vertex_ptr->next = NULL;
+      last_vertex_ptr->previous = NULL;
+      ++(polygon->vertex_cnt);
+   }
+   else {
+      tess_vertex *vertex_ptr;
+
+      /* same point twice? */
+      if (fabs(last_vertex_ptr->location[0] - v[0]) < EPSILON &&
+	  fabs(last_vertex_ptr->location[1] - v[1]) < EPSILON &&
+	  fabs(last_vertex_ptr->location[2] - v[2]) < EPSILON) {
+	 tess_call_user_error(tobj, GLU_TESS_ERROR6);
+	 return;
+      }
+      if ((vertex_ptr = (tess_vertex *)
+	   malloc(sizeof(tess_vertex))) == NULL) {
+	 tess_call_user_error(tobj, GLU_OUT_OF_MEMORY);
+	 return;
+      }
+      vertex_ptr->data = data;
+      vertex_ptr->location[0] = v[0];
+      vertex_ptr->location[1] = v[1];
+      vertex_ptr->location[2] = v[2];
+      vertex_ptr->next = NULL;
+      vertex_ptr->previous = last_vertex_ptr;
+      ++(polygon->vertex_cnt);
+      last_vertex_ptr->next = vertex_ptr;
+      polygon->last_vertex = vertex_ptr;
+   }
+}
+
+
+static void
+delete_contours(GLUtriangulatorObj * tobj)
+{
+   tess_polygon *polygon = tobj->current_polygon;
+   tess_contour *contour, *contour_tmp;
+   tess_vertex *vertex, *vertex_tmp;
+
+   /* remove current_polygon list - if exists due to detected error */
+   if (polygon != NULL) {
+      if (polygon->vertices) {
+	 for (vertex = polygon->vertices; vertex != polygon->last_vertex;) {
+	    vertex_tmp = vertex->next;
+	    free(vertex);
+	    vertex = vertex_tmp;
+	 }
+	 free(vertex);
+      }
+      free(polygon);
+      tobj->current_polygon = NULL;
+   }
+   /* remove all contour data */
+   for (contour = tobj->contours; contour != NULL;) {
+      for (vertex = contour->vertices; vertex != contour->last_vertex;) {
+	 vertex_tmp = vertex->next;
+	 free(vertex);
+	 vertex = vertex_tmp;
+      }
+      free(vertex);
+      contour_tmp = contour->next;
+      free(contour);
+      contour = contour_tmp;
+   }
+   tobj->contours = tobj->last_contour = NULL;
+   tobj->contour_cnt = 0;
+}
+
+
+void GLAPIENTRY
+gluTessNormal(GLUtesselator *tess, GLdouble valueX, GLdouble valueY, GLdouble valueZ)
+{
+   /* dummy function */
+   (void) tess;
+   (void) valueX;
+   (void) valueY;
+   (void) valueZ;
+}

src/glu/mini/tess.h

@@ -0,0 +1,108 @@
+/* $Id: tess.h,v 1.1.2.1 2003/03/21 13:02:23 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * This file is part of the polygon tesselation code contributed by
+ * Bogdan Sikorski
+ */
+
+
+#ifndef TESS_H
+#define TESS_H
+
+
+#include "gluP.h"
+
+#define EPSILON 1e-06		/* epsilon for double precision compares */
+
+typedef enum
+{
+   OXY,
+   OYZ,
+   OXZ
+}
+projection_type;
+
+typedef struct callbacks_str
+{
+   void (GLCALLBACK * begin) (GLenum mode);
+   void (GLCALLBACK * edgeFlag) (GLboolean flag);
+   void (GLCALLBACK * vertex) (GLvoid * v);
+   void (GLCALLBACK * end) (void);
+   void (GLCALLBACK * error) (GLenum err);
+}
+tess_callbacks;
+
+typedef struct vertex_str
+{
+   void *data;
+   GLdouble location[3];
+   GLdouble x, y;
+   GLboolean edge_flag;
+   struct vertex_str *shadow_vertex;
+   struct vertex_str *next, *previous;
+}
+tess_vertex;
+
+typedef struct contour_str
+{
+   GLenum type;
+   GLuint vertex_cnt;
+   GLdouble area;
+   GLenum orientation;
+   struct vertex_str *vertices, *last_vertex;
+   struct contour_str *next, *previous;
+}
+tess_contour;
+
+typedef struct polygon_str
+{
+   GLuint vertex_cnt;
+   GLdouble A, B, C, D;
+   GLdouble area;
+   GLenum orientation;
+   struct vertex_str *vertices, *last_vertex;
+}
+tess_polygon;
+
+struct GLUtesselator
+{
+   tess_contour *contours, *last_contour;
+   GLuint contour_cnt;
+   tess_callbacks callbacks;
+   tess_polygon *current_polygon;
+   GLenum error;
+   GLdouble A, B, C, D;
+   projection_type projection;
+};
+
+
+extern void tess_call_user_error(GLUtriangulatorObj *, GLenum);
+extern void tess_test_polygon(GLUtriangulatorObj *);
+extern void tess_find_contour_hierarchies(GLUtriangulatorObj *);
+extern void tess_handle_holes(GLUtriangulatorObj *);
+extern void tess_tesselate(GLUtriangulatorObj *);
+extern void tess_tesselate_with_edge_flag(GLUtriangulatorObj *);
+
+
+#endif

src/glu/mini/tesselat.c

@@ -0,0 +1,407 @@
+/* $Id: tesselat.c,v 1.1.2.1 2003/03/21 13:02:23 keithw Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ * Copyright (C) 1995-2000  Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * This file is part of the polygon tesselation code contributed by
+ * Bogdan Sikorski
+ */
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include <stdlib.h>
+#include <math.h>
+#include "tess.h"
+#endif
+
+
+
+static GLboolean edge_flag;
+
+static void emit_triangle(GLUtriangulatorObj *, tess_vertex *,
+			  tess_vertex *, tess_vertex *);
+
+static void emit_triangle_with_edge_flag(GLUtriangulatorObj *,
+					 tess_vertex *, GLboolean,
+					 tess_vertex *, GLboolean,
+					 tess_vertex *, GLboolean);
+
+static GLdouble
+twice_the_triangle_area(tess_vertex * va, tess_vertex * vb, tess_vertex * vc)
+{
+   return (vb->x - va->x) * (vc->y - va->y) - (vb->y - va->y) * (vc->x -
+								 va->x);
+}
+
+static GLboolean
+left(GLdouble A, GLdouble B, GLdouble C, GLdouble x, GLdouble y)
+{
+   if (A * x + B * y + C > -EPSILON)
+      return GL_TRUE;
+   else
+      return GL_FALSE;
+}
+
+static GLboolean
+right(GLdouble A, GLdouble B, GLdouble C, GLdouble x, GLdouble y)
+{
+   if (A * x + B * y + C < EPSILON)
+      return GL_TRUE;
+   else
+      return GL_FALSE;
+}
+
+static GLint
+convex_ccw(tess_vertex * va,
+	   tess_vertex * vb, tess_vertex * vc, GLUtriangulatorObj * tobj)
+{
+   GLdouble d;
+
+   d = twice_the_triangle_area(va, vb, vc);
+
+   if (d > EPSILON) {
+      return 1;
+   }
+   else if (d < -EPSILON) {
+      return 0;
+   }
+   else {
+      return -1;
+   }
+}
+
+static GLint
+convex_cw(tess_vertex * va,
+	  tess_vertex * vb, tess_vertex * vc, GLUtriangulatorObj * tobj)
+{
+   GLdouble d;
+
+   d = twice_the_triangle_area(va, vb, vc);
+
+   if (d < -EPSILON) {
+      return 1;
+   }
+   else if (d > EPSILON) {
+      return 0;
+   }
+   else {
+      return -1;
+   }
+}
+
+static GLboolean
+diagonal_ccw(tess_vertex * va,
+	     tess_vertex * vb,
+	     GLUtriangulatorObj * tobj, tess_contour * contour)
+{
+   tess_vertex *vc = va->next, *vertex, *shadow_vertex;
+   struct
+   {
+      GLdouble A, B, C;
+   }
+   ac, cb, ba;
+   GLdouble x, y;
+
+   GLint res = convex_ccw(va, vc, vb, tobj);
+   if (res == 0)
+      return GL_FALSE;
+   if (res == -1)
+      return GL_TRUE;
+
+   ba.A = vb->y - va->y;
+   ba.B = va->x - vb->x;
+   ba.C = -ba.A * va->x - ba.B * va->y;
+   ac.A = va->y - vc->y;
+   ac.B = vc->x - va->x;
+   ac.C = -ac.A * vc->x - ac.B * vc->y;
+   cb.A = vc->y - vb->y;
+   cb.B = vb->x - vc->x;
+   cb.C = -cb.A * vb->x - cb.B * vb->y;
+   for (vertex = vb->next; vertex != va; vertex = vertex->next) {
+      shadow_vertex = vertex->shadow_vertex;
+      if (shadow_vertex != NULL &&
+	  (shadow_vertex == va || shadow_vertex == vb || shadow_vertex == vc))
+	 continue;
+      x = vertex->x;
+      y = vertex->y;
+      if (left(ba.A, ba.B, ba.C, x, y) &&
+	  left(ac.A, ac.B, ac.C, x, y) && left(cb.A, cb.B, cb.C, x, y))
+	 return GL_FALSE;
+   }
+   return GL_TRUE;
+}
+
+static GLboolean
+diagonal_cw(tess_vertex * va,
+	    tess_vertex * vb,
+	    GLUtriangulatorObj * tobj, tess_contour * contour)
+{
+   tess_vertex *vc = va->next, *vertex, *shadow_vertex;
+   struct
+   {
+      GLdouble A, B, C;
+   }
+   ac, cb, ba;
+   GLdouble x, y;
+
+   GLint res = convex_cw(va, vc, vb, tobj);
+   if (res == 0)
+      return GL_FALSE;
+   if (res == -1)
+      return GL_TRUE;
+
+   ba.A = vb->y - va->y;
+   ba.B = va->x - vb->x;
+   ba.C = -ba.A * va->x - ba.B * va->y;
+   ac.A = va->y - vc->y;
+   ac.B = vc->x - va->x;
+   ac.C = -ac.A * vc->x - ac.B * vc->y;
+   cb.A = vc->y - vb->y;
+   cb.B = vb->x - vc->x;
+   cb.C = -cb.A * vb->x - cb.B * vb->y;
+   for (vertex = vb->next; vertex != va; vertex = vertex->next) {
+      shadow_vertex = vertex->shadow_vertex;
+      if (shadow_vertex != NULL &&
+	  (shadow_vertex == va || shadow_vertex == vb || shadow_vertex == vc))
+	 continue;
+      x = vertex->x;
+      y = vertex->y;
+      if (right(ba.A, ba.B, ba.C, x, y) &&
+	  right(ac.A, ac.B, ac.C, x, y) && right(cb.A, cb.B, cb.C, x, y))
+	 return GL_FALSE;
+   }
+   return GL_TRUE;
+}
+
+static void
+clip_ear(GLUtriangulatorObj * tobj, tess_vertex * v, tess_contour * contour)
+{
+   emit_triangle(tobj, v->previous, v, v->next);
+   /* the first in the list */
+   if (contour->vertices == v) {
+      contour->vertices = v->next;
+      contour->last_vertex->next = v->next;
+      v->next->previous = contour->last_vertex;
+   }
+   else
+      /* the last ? */
+   if (contour->last_vertex == v) {
+      contour->vertices->previous = v->previous;
+      v->previous->next = v->next;
+      contour->last_vertex = v->previous;
+   }
+   else {
+      v->next->previous = v->previous;
+      v->previous->next = v->next;
+   }
+   free(v);
+   --(contour->vertex_cnt);
+}
+
+static void
+clip_ear_with_edge_flag(GLUtriangulatorObj * tobj,
+			tess_vertex * v, tess_contour * contour)
+{
+   emit_triangle_with_edge_flag(tobj, v->previous, v->previous->edge_flag,
+				v, v->edge_flag, v->next, GL_FALSE);
+   v->previous->edge_flag = GL_FALSE;
+   /* the first in the list */
+   if (contour->vertices == v) {
+      contour->vertices = v->next;
+      contour->last_vertex->next = v->next;
+      v->next->previous = contour->last_vertex;
+   }
+   else
+      /* the last ? */
+   if (contour->last_vertex == v) {
+      contour->vertices->previous = v->previous;
+      v->previous->next = v->next;
+      contour->last_vertex = v->previous;
+   }
+   else {
+      v->next->previous = v->previous;
+      v->previous->next = v->next;
+   }
+   free(v);
+   --(contour->vertex_cnt);
+}
+
+static void
+triangulate_ccw(GLUtriangulatorObj * tobj, tess_contour * contour)
+{
+   tess_vertex *vertex;
+   GLuint vertex_cnt = contour->vertex_cnt;
+
+   while (vertex_cnt > 3) {
+      vertex = contour->vertices;
+      while (diagonal_ccw(vertex, vertex->next->next, tobj, contour) ==
+	     GL_FALSE && tobj->error == GLU_NO_ERROR)
+	 vertex = vertex->next;
+      if (tobj->error != GLU_NO_ERROR)
+	 return;
+      clip_ear(tobj, vertex->next, contour);
+      --vertex_cnt;
+   }
+}
+
+static void
+triangulate_cw(GLUtriangulatorObj * tobj, tess_contour * contour)
+{
+   tess_vertex *vertex;
+   GLuint vertex_cnt = contour->vertex_cnt;
+
+   while (vertex_cnt > 3) {
+      vertex = contour->vertices;
+      while (diagonal_cw(vertex, vertex->next->next, tobj, contour) ==
+	     GL_FALSE && tobj->error == GLU_NO_ERROR)
+	 vertex = vertex->next;
+      if (tobj->error != GLU_NO_ERROR)
+	 return;
+      clip_ear(tobj, vertex->next, contour);
+      --vertex_cnt;
+   }
+}
+
+static void
+triangulate_ccw_with_edge_flag(GLUtriangulatorObj * tobj,
+			       tess_contour * contour)
+{
+   tess_vertex *vertex;
+   GLuint vertex_cnt = contour->vertex_cnt;
+
+   while (vertex_cnt > 3) {
+      vertex = contour->vertices;
+      while (diagonal_ccw(vertex, vertex->next->next, tobj, contour) ==
+	     GL_FALSE && tobj->error == GLU_NO_ERROR)
+	 vertex = vertex->next;
+      if (tobj->error != GLU_NO_ERROR)
+	 return;
+      clip_ear_with_edge_flag(tobj, vertex->next, contour);
+      --vertex_cnt;
+   }
+}
+
+static void
+triangulate_cw_with_edge_flag(GLUtriangulatorObj * tobj,
+			      tess_contour * contour)
+{
+   tess_vertex *vertex;
+   GLuint vertex_cnt = contour->vertex_cnt;
+
+   while (vertex_cnt > 3) {
+      vertex = contour->vertices;
+      while (diagonal_cw(vertex, vertex->next->next, tobj, contour) ==
+	     GL_FALSE && tobj->error == GLU_NO_ERROR)
+	 vertex = vertex->next;
+      if (tobj->error != GLU_NO_ERROR)
+	 return;
+      clip_ear_with_edge_flag(tobj, vertex->next, contour);
+      --vertex_cnt;
+   }
+}
+
+void
+tess_tesselate(GLUtriangulatorObj * tobj)
+{
+   tess_contour *contour;
+
+   for (contour = tobj->contours; contour != NULL; contour = contour->next) {
+      if (contour->orientation == GLU_CCW) {
+	 triangulate_ccw(tobj, contour);
+      }
+      else {
+	 triangulate_cw(tobj, contour);
+      }
+      if (tobj->error != GLU_NO_ERROR)
+	 return;
+
+      /* emit the last triangle */
+      emit_triangle(tobj, contour->vertices, contour->vertices->next,
+		    contour->vertices->next->next);
+   }
+}
+
+void
+tess_tesselate_with_edge_flag(GLUtriangulatorObj * tobj)
+{
+   tess_contour *contour;
+
+   edge_flag = GL_TRUE;
+   /* first callback with edgeFlag set to GL_TRUE */
+   (tobj->callbacks.edgeFlag) (GL_TRUE);
+
+   for (contour = tobj->contours; contour != NULL; contour = contour->next) {
+      if (contour->orientation == GLU_CCW)
+	 triangulate_ccw_with_edge_flag(tobj, contour);
+      else
+	 triangulate_cw_with_edge_flag(tobj, contour);
+      if (tobj->error != GLU_NO_ERROR)
+	 return;
+      /* emit the last triangle */
+      emit_triangle_with_edge_flag(tobj, contour->vertices,
+				   contour->vertices->edge_flag,
+				   contour->vertices->next,
+				   contour->vertices->next->edge_flag,
+				   contour->vertices->next->next,
+				   contour->vertices->next->next->edge_flag);
+   }
+}
+
+static void
+emit_triangle(GLUtriangulatorObj * tobj,
+	      tess_vertex * v1, tess_vertex * v2, tess_vertex * v3)
+{
+   (tobj->callbacks.begin) (GL_TRIANGLES);
+   (tobj->callbacks.vertex) (v1->data);
+   (tobj->callbacks.vertex) (v2->data);
+   (tobj->callbacks.vertex) (v3->data);
+   (tobj->callbacks.end) ();
+}
+
+static void
+emit_triangle_with_edge_flag(GLUtriangulatorObj * tobj,
+			     tess_vertex * v1,
+			     GLboolean edge_flag1,
+			     tess_vertex * v2,
+			     GLboolean edge_flag2,
+			     tess_vertex * v3, GLboolean edge_flag3)
+{
+   (tobj->callbacks.begin) (GL_TRIANGLES);
+   if (edge_flag1 != edge_flag) {
+      edge_flag = (edge_flag == GL_TRUE ? GL_FALSE : GL_TRUE);
+      (tobj->callbacks.edgeFlag) (edge_flag);
+   }
+   (tobj->callbacks.vertex) (v1->data);
+   if (edge_flag2 != edge_flag) {
+      edge_flag = (edge_flag == GL_TRUE ? GL_FALSE : GL_TRUE);
+      (tobj->callbacks.edgeFlag) (edge_flag);
+   }
+   (tobj->callbacks.vertex) (v2->data);
+   if (edge_flag3 != edge_flag) {
+      edge_flag = (edge_flag == GL_TRUE ? GL_FALSE : GL_TRUE);
+      (tobj->callbacks.edgeFlag) (edge_flag);
+   }
+   (tobj->callbacks.vertex) (v3->data);
+   (tobj->callbacks.end) ();
+}

src/glut/mini/Makefile

@@ -1,43 +1,11 @@
-# Mesa 3-D graphics library
-# Version:  4.0
-# 
-# Copyright (C) 1999  Brian Paul   All Rights Reserved.
-# 
-# Permission is hereby granted, free of charge, to any person obtaining a
-# copy of this software and associated documentation files (the "Software"),
-# to deal in the Software without restriction, including without limitation
-# the rights to use, copy, modify, merge, publish, distribute, sublicense,
-# and/or sell copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following conditions:
-# 
-# The above copyright notice and this permission notice shall be included
-# in all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-# BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-# DOS/DJGPP glut makefile v1.1 for Mesa 4.0
-#
-#  Copyright (C) 2002 - Borca Daniel
-#  Email : dborca@yahoo.com
-#  Web   : http://www.geocities.com/dborca
+MESA = ../..
 
+MARK = $(MESA)/src-glut
+default: libglut.so.3.7 install 
+include $(MESA)/Makefile.include
 
-
-.PHONY: all clean
-
-TOP = ../..
-MARK = $(TOP)/src-glut
-LIBDIR = $(TOP)/lib
-GLUT_LIB = libglut.so
-
-CC = gcc
-INCLUDES = -I$(TOP)/include -I$(MARK)
-CFLAGS = -c -g $(INCLUDES) -MD 
+INCLUDES = -I$(MESA)/include -I$(MARK)
 
 CORE_SOURCES = \
 	bitmap.c \
@@ -64,35 +32,19 @@ MARK_SOURCES = \
 
 SOURCES = $(CORE_SOURCES)  $(MARK_SOURCES)
 
-OBJS = $(addsuffix .o,$(basename $(SOURCES)))
-
-LIBS=-L$(TOP)/lib -lGL -lGLU -lm
-
-.c.o:
-	$(CC) -o $@ -c $(CFLAGS) $<
-.S.o:
-	$(CC) -o $@ -c $(CFLAGS) $<
-
-default: libglut.so.3.7 install 
+OBJS =  $(SOURCES:.c=.o)
 
+LIBS = -L$(MESA)/lib -lGL -lGLU -lm
 
 libglut.so.3.7: $(OBJS) Makefile
 	gcc -shared -Wl,-soname,libglut.so -Wl,-Bsymbolic $(OBJS) $(LIBS) -o $@ 
 
 install:
-	rm -f $(TOP)/lib/libglut.so*
-	install -D libglut.so.3.7 $(TOP)/lib/libglut.so.3.7
-	ln -s libglut.so.3.7 $(TOP)/lib/libglut.so.3
-	ln -s libglut.so.3 $(TOP)/lib/libglut.so
-
-
-clean:
-	rm -f *~ .*~ *.o libglut.so*  *.d
+	rm -f $(MESA)/lib/libglut.so*
+	install -D libglut.so.3.7 $(MESA)/lib/libglut.so.3.7
+	ln -s libglut.so.3.7 $(MESA)/lib/libglut.so.3
+	ln -s libglut.so.3 $(MESA)/lib/libglut.so
 
 
 -include $(SOURCES:.c=.d)
 
-.SUFFIXES: .c .d
-
-.c.d:
-	$(CC) -M $(INCLUDES) $< > $@

src/glut/mini/bitmap.c

@@ -12,8 +12,8 @@ glutBitmapCharacter(GLUTbitmapFont font, int c)
 {
   const BitmapCharRec *ch;
   BitmapFontPtr fontinfo;
-  GLint swapbytes, lsbfirst, rowlength;
-  GLint skiprows, skippixels, alignment;
+  GLfloat swapbytes, lsbfirst, rowlength;
+  GLfloat skiprows, skippixels, alignment;
 
 #if defined(_WIN32)
   fontinfo = (BitmapFontPtr) __glutFont(font);
@@ -27,30 +27,30 @@ glutBitmapCharacter(GLUTbitmapFont font, int c)
   ch = fontinfo->ch[c - fontinfo->first];
   if (ch) {
     /* Save current modes. */
-    glGetIntegerv(GL_UNPACK_SWAP_BYTES, &swapbytes);
-    glGetIntegerv(GL_UNPACK_LSB_FIRST, &lsbfirst);
-    glGetIntegerv(GL_UNPACK_ROW_LENGTH, &rowlength);
-    glGetIntegerv(GL_UNPACK_SKIP_ROWS, &skiprows);
-    glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &skippixels);
-    glGetIntegerv(GL_UNPACK_ALIGNMENT, &alignment);
+/*     glGetFloatv(GL_UNPACK_SWAP_BYTES, &swapbytes); */
+/*     glGetFloatv(GL_UNPACK_LSB_FIRST, &lsbfirst); */
+/*     glGetFloatv(GL_UNPACK_ROW_LENGTH, &rowlength); */
+/*     glGetFloatv(GL_UNPACK_SKIP_ROWS, &skiprows); */
+/*     glGetFloatv(GL_UNPACK_SKIP_PIXELS, &skippixels); */
+       glGetFloatv(GL_UNPACK_ALIGNMENT, &alignment); 
     /* Little endian machines (DEC Alpha for example) could
        benefit from setting GL_UNPACK_LSB_FIRST to GL_TRUE
        instead of GL_FALSE, but this would require changing the
        generated bitmaps too. */
-    glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
-    glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
-    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-    glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
-    glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
-    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+/*     glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE); */
+/*     glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE); */
+/*     glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); */
+/*     glPixelStorei(GL_UNPACK_SKIP_ROWS, 0); */
+/*     glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0); */
+     glPixelStorei(GL_UNPACK_ALIGNMENT, 1); 
     glBitmap(ch->width, ch->height, ch->xorig, ch->yorig,
       ch->advance, 0, ch->bitmap);
     /* Restore saved modes. */
-    glPixelStorei(GL_UNPACK_SWAP_BYTES, swapbytes);
-    glPixelStorei(GL_UNPACK_LSB_FIRST, lsbfirst);
-    glPixelStorei(GL_UNPACK_ROW_LENGTH, rowlength);
-    glPixelStorei(GL_UNPACK_SKIP_ROWS, skiprows);
-    glPixelStorei(GL_UNPACK_SKIP_PIXELS, skippixels);
-    glPixelStorei(GL_UNPACK_ALIGNMENT, alignment);
+/*     glPixelStorei(GL_UNPACK_SWAP_BYTES, swapbytes); */
+/*     glPixelStorei(GL_UNPACK_LSB_FIRST, (int)lsbfirst); */
+/*     glPixelStorei(GL_UNPACK_ROW_LENGTH, (int)rowlength); */
+/*     glPixelStorei(GL_UNPACK_SKIP_ROWS, skiprows); */
+/*     glPixelStorei(GL_UNPACK_SKIP_PIXELS, skippixels); */
+     glPixelStorei(GL_UNPACK_ALIGNMENT, (int)alignment); 
   }
 }

src/glut/mini/init.c

@@ -40,9 +40,6 @@ void APIENTRY glutInit (int *argcp, char **argv)
 void APIENTRY glutInitDisplayMode (unsigned int mode)
 {
  g_display_mode = mode;
-
-/*  pc_install_keyb(); */
-/*  g_mouse = pc_install_mouse(); */
 }
 
 
@@ -60,103 +57,3 @@ void APIENTRY glutInitWindowSize (int width, int height)
 }
 
 
-void APIENTRY glutMainLoop (void)
-{
- GLboolean idle;
- static int old_mouse_x = 0;
- static int old_mouse_y = 0;
- static int old_mouse_b = 0;
-
- glutPostRedisplay();
- if (reshape_func) reshape_func(g_width, g_height);
- if (visibility_func) visibility_func(GLUT_VISIBLE);
-/*  if (g_mouse) pc_show_mouse(); */
-
- while (GL_TRUE) {
-       idle = GL_TRUE;
-
-       if (g_redisplay && display_func) {
-          idle        = GL_FALSE;
-          g_redisplay = GL_FALSE;
-
-/*           if (g_mouse && !(g_display_mode & GLUT_DOUBLE)) pc_scare_mouse(); */
-          display_func();
-/*           if (g_mouse && !(g_display_mode & GLUT_DOUBLE)) pc_unscare_mouse(); */
-       }
-
-#if 0
-       if (pc_keypressed()) {
-          int key;
-
-          idle = GL_FALSE;
-          key  = pc_readkey();
-
-          switch (key>>16) {
-                 case KEY_F1:     if (special_func) special_func(GLUT_KEY_F1,        0, 0); break;
-                 case KEY_F2:     if (special_func) special_func(GLUT_KEY_F2,        0, 0); break;
-                 case KEY_F3:     if (special_func) special_func(GLUT_KEY_F3,        0, 0); break;
-                 case KEY_F4:     if (special_func) special_func(GLUT_KEY_F4,        0, 0); break;
-                 case KEY_F5:     if (special_func) special_func(GLUT_KEY_F5,        0, 0); break;
-                 case KEY_F6:     if (special_func) special_func(GLUT_KEY_F6,        0, 0); break;
-                 case KEY_F7:     if (special_func) special_func(GLUT_KEY_F7,        0, 0); break;
-                 case KEY_F8:     if (special_func) special_func(GLUT_KEY_F8,        0, 0); break;
-                 case KEY_F9:     if (special_func) special_func(GLUT_KEY_F9,        0, 0); break;
-                 case KEY_F10:    if (special_func) special_func(GLUT_KEY_F10,       0, 0); break;
-                 case KEY_F11:    if (special_func) special_func(GLUT_KEY_F11,       0, 0); break;
-                 case KEY_F12:    if (special_func) special_func(GLUT_KEY_F12,       0, 0); break;
-                 case KEY_LEFT:   if (special_func) special_func(GLUT_KEY_LEFT,      0, 0); break;
-                 case KEY_UP:     if (special_func) special_func(GLUT_KEY_UP,        0, 0); break;
-                 case KEY_RIGHT:  if (special_func) special_func(GLUT_KEY_RIGHT,     0, 0); break;
-                 case KEY_DOWN:   if (special_func) special_func(GLUT_KEY_DOWN,      0, 0); break;
-                 case KEY_PGUP:   if (special_func) special_func(GLUT_KEY_PAGE_UP,   0, 0); break;
-                 case KEY_PGDN:   if (special_func) special_func(GLUT_KEY_PAGE_DOWN, 0, 0); break;
-                 case KEY_HOME:   if (special_func) special_func(GLUT_KEY_HOME,      0, 0); break;
-                 case KEY_END:    if (special_func) special_func(GLUT_KEY_END,       0, 0); break;
-                 case KEY_INSERT: if (special_func) special_func(GLUT_KEY_INSERT,    0, 0); break;
-                 default:         if (keyboard_func) keyboard_func(key & 0xFF, 0, 0);
-          }
-       }
-
-       if (g_mouse) {
-          int mouse_x;
-          int mouse_y;
-          int mouse_b;
-       
-          mouse_b = pc_query_mouse(&mouse_x, &mouse_y);
-          
-          if (motion_func && ((mouse_x != old_mouse_x) || (mouse_y != old_mouse_y))) {
-             idle        = GL_FALSE;
-             old_mouse_x = mouse_x;
-             old_mouse_y = mouse_y;
-   
-             motion_func(old_mouse_x, old_mouse_y);
-          }
-   
-          if (mouse_func && (mouse_b != old_mouse_b)) {
-             int new_mouse_b = mouse_b;
-   
-             if ((old_mouse_b & 1) && !(new_mouse_b & 1))
-                mouse_func(GLUT_LEFT_BUTTON, GLUT_UP,   mouse_x, mouse_y);
-             else if (!(old_mouse_b & 1) && (new_mouse_b & 1))
-                mouse_func(GLUT_LEFT_BUTTON, GLUT_DOWN, mouse_x, mouse_y);
-   
-             if ((old_mouse_b & 2) && !(new_mouse_b & 2))
-                mouse_func(GLUT_RIGHT_BUTTON, GLUT_UP,   mouse_x, mouse_y);
-             else if (!(old_mouse_b & 2) && (new_mouse_b & 2))
-                mouse_func(GLUT_RIGHT_BUTTON, GLUT_DOWN, mouse_x, mouse_y);
-   
-             if ((old_mouse_b & 4) && !(new_mouse_b & 4))
-                mouse_func(GLUT_MIDDLE_BUTTON, GLUT_UP,   mouse_x, mouse_y);
-             else if (!(old_mouse_b & 3) && (new_mouse_b & 4))
-                mouse_func(GLUT_MIDDLE_BUTTON, GLUT_DOWN, mouse_x, mouse_y);
-   
-             idle        = GL_FALSE;
-             old_mouse_b = new_mouse_b;
-          }
-       }
-#endif
-
-       if (idle && idle_func)
-          idle_func();
- }
-}

src/glut/mini/models.c

@@ -152,7 +152,7 @@ drawBox(GLfloat size, GLenum type)
 
   for (i = 5; i >= 0; i--) {
     glBegin(type);
-    glNormal3fv(&n[i][0]);
+/*     glNormal3fv(&n[i][0]); */
     glVertex3fv(&v[faces[i][0]][0]);
     glVertex3fv(&v[faces[i][1]][0]);
     glVertex3fv(&v[faces[i][2]][0]);
@@ -205,9 +205,9 @@ doughnut(GLfloat r, GLfloat R, GLint nsides, GLint rings)
       sinPhi = sin(phi);
       dist = R + r * cosPhi;
 
-      glNormal3f(cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi);
+/*       glNormal3f(cosTheta1 * cosPhi, -sinTheta1 * cosPhi, sinPhi); */
       glVertex3f(cosTheta1 * dist, -sinTheta1 * dist, r * sinPhi);
-      glNormal3f(cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi);
+/*       glNormal3f(cosTheta * cosPhi, -sinTheta * cosPhi, sinPhi); */
       glVertex3f(cosTheta * dist, -sinTheta * dist,  r * sinPhi);
     }
     glEnd();
@@ -222,10 +222,10 @@ void APIENTRY
 glutWireTorus(GLdouble innerRadius, GLdouble outerRadius,
   GLint nsides, GLint rings)
 {
-  glPushAttrib(GL_POLYGON_BIT);
+/*   glPushAttrib(GL_POLYGON_BIT); */
   glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
   doughnut(innerRadius, outerRadius, nsides, rings);
-  glPopAttrib();
+/*   glPopAttrib(); */
 }
 
 void APIENTRY
@@ -318,7 +318,7 @@ pentagon(int a, int b, int c, int d, int e, GLenum shadeType)
   normalize(n0);
 
   glBegin(shadeType);
-  glNormal3fv(n0);
+/*   glNormal3fv(n0); */
   glVertex3fv(&dodec[a][0]);
   glVertex3fv(&dodec[b][0]);
   glVertex3fv(&dodec[c][0]);
@@ -377,7 +377,7 @@ recorditem(GLfloat * n1, GLfloat * n2, GLfloat * n3,
   normalize(q1);
 
   glBegin(shadeType);
-  glNormal3fv(q1);
+/*   glNormal3fv(q1); */
   glVertex3fv(n1);
   glVertex3fv(n2);
   glVertex3fv(n3);

src/glut/mini/teapot.c

@@ -143,6 +143,7 @@ teapot(GLint grid, GLdouble scale, GLenum type)
   float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3];
   long i, j, k, l;
 
+#if 0
   glPushAttrib(GL_ENABLE_BIT | GL_EVAL_BIT);
   glEnable(GL_AUTO_NORMAL);
   glEnable(GL_NORMALIZE);
@@ -194,6 +195,7 @@ teapot(GLint grid, GLdouble scale, GLenum type)
   }
   glPopMatrix();
   glPopAttrib();
+#endif
 }
 
 /* CENTRY */

src/glut/mini/window.c

@@ -218,3 +218,56 @@ void APIENTRY glutShowWindow (void)
 void APIENTRY glutHideWindow (void)
 {
 }
+
+void APIENTRY glutMainLoop (void)
+{
+   GLboolean idle;
+   GLboolean have_event;
+   XEvent evt;
+   int visible = 0;
+
+   glutPostRedisplay();
+   if (reshape_func) reshape_func(g_width, g_height);
+
+   while (GL_TRUE) {
+      idle = GL_TRUE;
+
+
+      if (visible && idle_func) 
+	 have_event = XCheckMaskEvent( dpy, ~0, &evt );
+      else 
+	 have_event = XNextEvent( dpy, &evt );
+
+      if (have_event) {
+	 idle = GL_FALSE;
+	 switch(evt.type) {
+	 case MapNotify:
+	    if (visibility_func) {
+	       visibility_func(GLUT_VISIBLE);
+	    }
+	    visible = 1;
+	    break;
+	 case UnmapNotify:
+	    if (visibility_func) {
+	       visibility_func(GLUT_NOT_VISIBLE);
+	    }
+	    visible = 0;
+	    break;
+	 case Expose:
+	    g_redisplay = 1;
+	    break;
+	 }
+      }
+
+      if (visible && g_redisplay && display_func) {
+	 idle        = GL_FALSE;
+	 g_redisplay = GL_FALSE;
+
+	 display_func();
+      }
+
+      if (visible && idle && idle_func) {
+	 idle_func();
+      }
+   }
+}

src/kernel/agpgart/NOTES

@@ -0,0 +1 @@
+This directory not really of interest to anybody...  Feel free to ignore.

src/kernel/agpgart/agp.h

@@ -0,0 +1,544 @@
+/**
+ * \file agp.h
+ * AGPGART module generic backend
+ * \version 0.99
+ * 
+ * \author Jeff Hartmann
+ */
+
+/*
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _AGP_BACKEND_PRIV_H
+#define _AGP_BACKEND_PRIV_H 1
+
+#include <asm/agp.h>	/* for flush_agp_cache() */
+
+extern struct agp_bridge_data agp_bridge;
+
+/** \name Generic routines. */
+/*@{*/
+void agp_generic_agp_enable(u32 mode);
+int agp_generic_create_gatt_table(void);
+int agp_generic_free_gatt_table(void);
+agp_memory *agp_create_memory(int scratch_pages);
+int agp_generic_insert_memory(agp_memory * mem, off_t pg_start, int type);
+int agp_generic_remove_memory(agp_memory * mem, off_t pg_start, int type);
+agp_memory *agp_generic_alloc_by_type(size_t page_count, int type);
+void agp_generic_free_by_type(agp_memory * curr);
+void *agp_generic_alloc_page(void);
+void agp_generic_destroy_page(void *addr);
+int agp_generic_suspend(void);
+void agp_generic_resume(void);
+void agp_free_key(int key);
+/*@}*/
+
+/** \name Chipset specific initialization routines */
+/*@{*/
+int __init ali_generic_setup (struct pci_dev *pdev);
+int __init amd_irongate_setup (struct pci_dev *pdev);
+int __init amd_8151_setup (struct pci_dev *pdev);
+int __init hp_zx1_setup (struct pci_dev *pdev);
+int __init intel_i460_setup (struct pci_dev *pdev);
+int __init intel_generic_setup (struct pci_dev *pdev);
+int __init intel_i810_setup(struct pci_dev *i810_dev);
+int __init intel_815_setup(struct pci_dev *pdev);
+int __init intel_i830_setup(struct pci_dev *i830_dev);
+int __init intel_820_setup (struct pci_dev *pdev);
+int __init intel_830mp_setup (struct pci_dev *pdev);
+int __init intel_840_setup (struct pci_dev *pdev);
+int __init intel_845_setup (struct pci_dev *pdev);
+int __init intel_850_setup (struct pci_dev *pdev);
+int __init intel_860_setup (struct pci_dev *pdev);
+int __init serverworks_setup (struct pci_dev *pdev);
+int __init sis_generic_setup (struct pci_dev *pdev);
+int __init via_generic_setup (struct pci_dev *pdev);
+/*@}*/
+
+#define AGPGART_MODULE_NAME	"agpgart"
+#define PFX			AGPGART_MODULE_NAME ": "
+
+
+/**
+ * \fn global_cache_flush
+ * Calls flush_agp_cache() on all processors. 
+ */
+#ifdef CONFIG_SMP
+static void ipi_handler(void *null)
+{
+	flush_agp_cache();
+}
+
+static void __attribute__((unused)) global_cache_flush(void)
+{
+	if (smp_call_function(ipi_handler, NULL, 1, 1) != 0)
+		panic(PFX "timed out waiting for the other CPUs!\n");
+	flush_agp_cache();
+}
+#else
+static void global_cache_flush(void)
+{
+	flush_agp_cache();
+}
+#endif	/* !CONFIG_SMP */
+
+/**
+ * Type of the aperture size fields in agp_bridge_data.
+ */
+enum aper_size_type {
+	U8_APER_SIZE,	/**< aper_size_info_8 */
+	U16_APER_SIZE,	/**< aper_size_info_16 */
+	U32_APER_SIZE,	/**< aper_size_info_32 */
+	LVL2_APER_SIZE,	/**< aper_size_info_lvl2 */
+	FIXED_APER_SIZE	/**< aper_size_info_fixed */
+};
+
+/**
+ * Totally device specific, for integrated chipsets that 
+ * might have different types of memory masks.  For other
+ * devices this will probably be ignored.
+ */
+struct gatt_mask {
+	unsigned long mask;
+	u32 type;
+};
+
+/** Aperture size information - u8 */
+struct aper_size_info_8 {
+	int size;
+	int num_entries;
+	int page_order;
+	u8 size_value;
+};
+
+/** Aperture size information - u16 */
+struct aper_size_info_16 {
+	int size;
+	int num_entries;
+	int page_order;
+	u16 size_value;
+};
+
+/** Aperture size information - u32 */
+struct aper_size_info_32 {
+	int size;
+	int num_entries;
+	int page_order;
+	u32 size_value;
+};
+
+/** Aperture size information - 2 level */
+struct aper_size_info_lvl2 {
+	int size;
+	int num_entries;
+	u32 size_value;
+};
+
+/** Aperture size information - fixed */
+struct aper_size_info_fixed {
+	int size;
+	int num_entries;
+	int page_order;
+};
+
+/**
+ * AGP bridge data.
+ */
+struct agp_bridge_data {
+	struct agp_version *version;
+	void *aperture_sizes;	/**< All aperture sizes. \sa agp_bridge_data::size_type */
+	void *previous_size;	/**< Previous aperture size. \sa agp_bridge_data::size_type */
+	void *current_size;	/**< Current aperture size. One of
+				  agp_bridge_data::aperture_sizes. \sa
+				  agp_bridge_data::size_type */
+	void *dev_private_data;
+	struct pci_dev *dev;	/**< PCI device */
+	struct gatt_mask *masks;
+	unsigned long *gatt_table;
+	unsigned long *gatt_table_real;
+	unsigned long scratch_page;	/**< scratch page used as default value
+					  in empty GATT entries */
+	unsigned long gart_bus_addr;
+	unsigned long gatt_bus_addr;
+	u32 mode;	/**< bus mode */
+	enum chipset_type type;
+	enum aper_size_type size_type;	/**< type of agp_bridge_data::aperture_sizes */
+	unsigned long *key_list;	/**< bit array for the keys */
+	atomic_t current_memory_agp;
+	atomic_t agp_in_use;	/**< whether the AGP device has been acquired */
+	int max_memory_agp;	/**< maximum AGP memory in number of pages */
+	int needs_scratch_page; /**< whether to allocate a scratch page in
+				  agp_bridge_data::scratch_page */
+	int aperture_size_idx;
+	int num_aperture_sizes;
+	int num_of_masks;
+	int capndx;
+	int cant_use_aperture;
+
+	/** \name Links to driver specific functions  */
+	/*@{*/
+	
+	int (*fetch_size) (void);
+	int (*configure) (void);
+
+	/**
+	 * Enable the AGP bus.
+	 *
+	 * \param mode AGP mode.
+	 */
+	void (*agp_enable) (u32 mode);
+
+	void (*cleanup) (void);
+
+	/** Flush the table */
+	void (*tlb_flush) (agp_memory *);
+	
+	unsigned long (*mask_memory) (unsigned long, int);
+
+	void (*cache_flush) (void);
+
+	/** 
+	 * Create the GATT table 
+	 *
+	 * \return zero on success, or a negative number on failure.
+	 */
+	int (*create_gatt_table) (void);
+
+	/**
+	 * Free the GATT table 
+	 *
+	 * \return zero on success, or a negative number on failure.
+	 */
+	int (*free_gatt_table) (void);
+
+	/**
+	 * Insert memory into the GATT table.
+	 *
+	 * \param mem memory.
+	 * \param pg_start start page.
+	 * \param type type.
+	 * \return zero on success, or a negative number on failure.
+	 */
+	int (*insert_memory) (agp_memory *mem, off_t pg_start, int type);
+
+	/**
+	 * Remove memory from the GATT table.
+	 *
+	 * \param mem memory.
+	 * \param pg_start start page.
+	 * \param type type.
+	 * \return zero on success, or a negative number on failure.
+	 */
+	int (*remove_memory) (agp_memory *mem, off_t pg_start, int type);
+
+	/**
+	 * Allocate memory by type.
+	 *
+	 * \param page_count number of pages to allocate.
+	 * \param type type.
+	 * \return pointer to a agp_memory structure on success, or NULL on failure.
+	 */
+	agp_memory *(*alloc_by_type) (size_t page_count, int type);
+
+	/**
+	 * Free memory allocated with agp_bridge_data::alloc_by_type.
+	 *
+	 * \param curr memory to free.
+	 */
+	void (*free_by_type) (agp_memory * curr);
+
+	/**
+	 * Allocate a page.
+	 *
+	 * \return pointer to a page on success, or zero on failure.
+	 */
+	void *(*agp_alloc_page) (void);
+	
+	/**
+	 * Destroy a page allocated with the agp_bridge_data::agp_alloc_page
+	 * method.
+	 *
+	 * \param pointer to the page to be destroyed.
+	 */
+	void (*agp_destroy_page) (void *);
+
+	/** Suspend the device */
+	int (*suspend)(void);
+	
+	/** Resume the device */
+	void (*resume)(void);
+
+	/*@}*/
+};
+
+/** Write a 64 bit register */
+#define OUTREG64(mmap, addr, val)	__raw_writeq((val), (mmap)+(addr))
+/** Write a 32 bit register */
+#define OUTREG32(mmap, addr, val)	__raw_writel((val), (mmap)+(addr))
+/** Write a 16 bit register */
+#define OUTREG16(mmap, addr, val)	__raw_writew((val), (mmap)+(addr))
+/** Write a 8 bit register */
+#define OUTREG8(mmap, addr, val)	__raw_writeb((val), (mmap)+(addr))
+
+/** Read a 64 bit register */
+#define INREG64(mmap, addr)		__raw_readq((mmap)+(addr))
+/** Read a 32 bit register */
+#define INREG32(mmap, addr)		__raw_readl((mmap)+(addr))
+/** Read a 16 bit register */
+#define INREG16(mmap, addr)		__raw_readw((mmap)+(addr))
+/** Read a 8 bit register */
+#define INREG8(mmap, addr)		__raw_readb((mmap)+(addr))
+
+#define KB(x)	((x) * 1024)
+#define MB(x)	(KB (KB (x)))
+#define GB(x)	(MB (KB (x)))
+
+#define CACHE_FLUSH	agp_bridge.cache_flush
+/** Aperture size cast -- u8 */
+#define A_SIZE_8(x)	((struct aper_size_info_8 *) x)
+/** Aperture size cast -- u16 */
+#define A_SIZE_16(x)	((struct aper_size_info_16 *) x)
+/** Aperture size cast -- u32 */
+#define A_SIZE_32(x)	((struct aper_size_info_32 *) x)
+/** Aperture size cast -- 2 level */
+#define A_SIZE_LVL2(x)	((struct aper_size_info_lvl2 *) x)
+/** Aperture size cast -- fixed */
+#define A_SIZE_FIX(x)	((struct aper_size_info_fixed *) x)
+/** Indexing of agp_bridge_data::aperture_sizes -- u8 */
+#define A_IDX8()	(A_SIZE_8(agp_bridge.aperture_sizes) + i)
+/** Indexing of agp_bridge_data::aperture_sizes -- u16 */
+#define A_IDX16()	(A_SIZE_16(agp_bridge.aperture_sizes) + i)
+/** Indexing of agp_bridge_data::aperture_sizes -- u32 */
+#define A_IDX32()	(A_SIZE_32(agp_bridge.aperture_sizes) + i)
+/** Indexing of agp_bridge_data::aperture_sizes -- 2 level */
+#define A_IDXLVL2()	(A_SIZE_LVL2(agp_bridge.aperture_sizes) + i)
+/** Indexing of agp_bridge_data::aperture_sizes -- fixed */
+#define A_IDXFIX()	(A_SIZE_FIX(agp_bridge.aperture_sizes) + i)
+
+#define MAXKEY		(4096 * 32)
+
+/** 
+ * Check for an empty page. 
+ *
+ * \param p page.
+ * \return non-zero if \p p is empty, or zero otherwise.
+ *
+ * A page is empty if it's zero or points to the scratch page,
+ * agp_bridge_data::scratch_page.
+ */
+#define PGE_EMPTY(p)	(!(p) || (p) == (unsigned long) agp_bridge.scratch_page)
+
+
+/** \name Intel registers */
+/*@{*/
+#define INTEL_APBASE	0x10
+#define INTEL_APSIZE	0xb4
+#define INTEL_ATTBASE	0xb8
+#define INTEL_AGPCTRL	0xb0
+#define INTEL_NBXCFG	0x50
+#define INTEL_ERRSTS	0x91
+/*@}*/
+
+/** \name Intel 460GX registers */
+/*@{*/
+#define INTEL_I460_APBASE		0x10
+#define INTEL_I460_BAPBASE		0x98
+#define INTEL_I460_GXBCTL		0xa0
+#define INTEL_I460_AGPSIZ		0xa2
+#define INTEL_I460_ATTBASE		0xfe200000
+#define INTEL_I460_GATT_VALID		(1UL << 24)
+#define INTEL_I460_GATT_COHERENT	(1UL << 25)
+/*@}*/
+
+/** \name Intel i830 registers */
+/*@{*/
+#define I830_GMCH_CTRL			0x52
+#define I830_GMCH_ENABLED		0x4
+#define I830_GMCH_MEM_MASK		0x1
+#define I830_GMCH_MEM_64M		0x1
+#define I830_GMCH_MEM_128M		0
+#define I830_GMCH_GMS_MASK		0x70
+#define I830_GMCH_GMS_DISABLED		0x00
+#define I830_GMCH_GMS_LOCAL		0x10
+#define I830_GMCH_GMS_STOLEN_512	0x20
+#define I830_GMCH_GMS_STOLEN_1024	0x30
+#define I830_GMCH_GMS_STOLEN_8192	0x40
+#define I830_RDRAM_CHANNEL_TYPE		0x03010
+#define I830_RDRAM_ND(x)		(((x) & 0x20) >> 5)
+#define I830_RDRAM_DDT(x)		(((x) & 0x18) >> 3)
+
+/** This one is for I830MP with an external graphic card */
+#define INTEL_I830_ERRSTS	0x92
+/*@}*/
+
+/** \name Intel 815 registers */
+/*@{*/
+#define INTEL_815_APCONT	0x51
+#define INTEL_815_ATTBASE_MASK	~0x1FFFFFFF
+/*@}*/
+
+/** \name Intel i820 registers */
+/*@{*/
+#define INTEL_I820_RDCR		0x51
+#define INTEL_I820_ERRSTS	0xc8
+/*@}*/
+
+/** \name Intel i840 registers */
+/*@{*/
+#define INTEL_I840_MCHCFG	0x50
+#define INTEL_I840_ERRSTS	0xc8
+/*@}*/
+ 
+/** \name Intel i845 registers */
+/*@{*/
+#define INTEL_I845_AGPM		0x51
+#define INTEL_I845_ERRSTS	0xc8
+/*@}*/
+
+/** \name Intel i850 registers */
+/*@{*/
+#define INTEL_I850_MCHCFG	0x50
+#define INTEL_I850_ERRSTS	0xc8
+/*@}*/
+
+/** \name Intel i860 registers */
+/*@{*/
+#define INTEL_I860_MCHCFG	0x50
+#define INTEL_I860_ERRSTS	0xc8
+/*@}*/
+
+/** \name Intel i810 registers */
+/*@{*/
+#define I810_GMADDR		0x10
+#define I810_MMADDR		0x14
+#define I810_PTE_BASE		0x10000
+#define I810_PTE_MAIN_UNCACHED	0x00000000
+#define I810_PTE_LOCAL		0x00000002
+#define I810_PTE_VALID		0x00000001
+#define I810_SMRAM_MISCC	0x70
+#define I810_GFX_MEM_WIN_SIZE	0x00010000
+#define I810_GFX_MEM_WIN_32M	0x00010000
+#define I810_GMS		0x000000c0
+#define I810_GMS_DISABLE	0x00000000
+#define I810_PGETBL_CTL		0x2020
+#define I810_PGETBL_ENABLED	0x00000001
+#define I810_DRAM_CTL		0x3000
+#define I810_DRAM_ROW_0		0x00000001
+#define I810_DRAM_ROW_0_SDRAM	0x00000001
+/*@}*/
+
+
+
+/** \name VIA registers */
+/*@{*/
+#define VIA_APBASE	0x10
+#define VIA_GARTCTRL	0x80
+#define VIA_APSIZE	0x84
+#define VIA_ATTBASE	0x88
+/*@}*/
+
+/** \name SiS registers */
+/*@{*/
+#define SIS_APBASE	0x10
+#define SIS_ATTBASE	0x90
+#define SIS_APSIZE	0x94
+#define SIS_TLBCNTRL	0x97
+#define SIS_TLBFLUSH	0x98
+/*@}*/
+
+/** \name AMD registers */
+/*@{*/
+#define AMD_APBASE	0x10
+#define AMD_MMBASE	0x14
+#define AMD_APSIZE	0xac
+#define AMD_MODECNTL	0xb0
+#define AMD_MODECNTL2	0xb2
+#define AMD_GARTENABLE	0x02	/* In mmio region (16-bit register) */
+#define AMD_ATTBASE	0x04	/* In mmio region (32-bit register) */
+#define AMD_TLBFLUSH	0x0c	/* In mmio region (32-bit register) */
+#define AMD_CACHEENTRY	0x10	/* In mmio region (32-bit register) */
+
+#define AMD_8151_APSIZE	0xb4
+#define AMD_8151_GARTBLOCK	0xb8
+
+#define AMD_X86_64_GARTAPERTURECTL	0x90
+#define AMD_X86_64_GARTAPERTUREBASE	0x94
+#define AMD_X86_64_GARTTABLEBASE	0x98
+#define AMD_X86_64_GARTCACHECTL		0x9c
+#define AMD_X86_64_GARTEN	1<<0
+
+#define AMD_8151_VMAPERTURE		0x10
+#define AMD_8151_AGP_CTL		0xb0
+#define AMD_8151_APERTURESIZE	0xb4
+#define AMD_8151_GARTPTR		0xb8
+#define AMD_8151_GTLBEN	1<<7
+#define AMD_8151_APEREN	1<<8
+/*@}*/
+
+/** \name ALi registers */
+/*@{*/
+#define ALI_APBASE			0x10
+#define ALI_AGPCTRL			0xb8
+#define ALI_ATTBASE			0xbc
+#define ALI_TLBCTRL			0xc0
+#define ALI_TAGCTRL			0xc4
+#define ALI_CACHE_FLUSH_CTRL		0xD0
+#define ALI_CACHE_FLUSH_ADDR_MASK	0xFFFFF000
+#define ALI_CACHE_FLUSH_EN		0x100
+/*@}*/
+
+/** \name Serverworks Registers */
+/*@{*/
+#define SVWRKS_APSIZE		0x10
+#define SVWRKS_SIZE_MASK	0xfe000000
+
+#define SVWRKS_MMBASE		0x14
+#define SVWRKS_CACHING		0x4b
+#define SVWRKS_FEATURE		0x68
+
+/* func 1 registers */
+#define SVWRKS_AGP_ENABLE	0x60
+#define SVWRKS_COMMAND		0x04
+
+/* Memory mapped registers */
+#define SVWRKS_GART_CACHE	0x02
+#define SVWRKS_GATTBASE		0x04
+#define SVWRKS_TLBFLUSH		0x10
+#define SVWRKS_POSTFLUSH	0x14
+#define SVWRKS_DIRFLUSH		0x0c
+/*@}*/
+
+/** \name HP ZX1 SBA registers */
+/*@{*/
+#define HP_ZX1_CTRL		0x200
+#define HP_ZX1_IBASE		0x300
+#define HP_ZX1_IMASK		0x308
+#define HP_ZX1_PCOM		0x310
+#define HP_ZX1_TCNFG		0x318
+#define HP_ZX1_PDIR_BASE	0x320
+#define HP_ZX1_CACHE_FLUSH	0x428
+/*@}*/
+
+#endif				/* _AGP_BACKEND_PRIV_H */

src/kernel/agpgart/agp_backend.h

@@ -0,0 +1,171 @@
+/**
+ * \file agp_backend.h
+ * AGPGART module backend
+ * \version 0.99
+ * 
+ * \author Jeff Hartmann
+ */
+
+/*
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _AGP_BACKEND_H
+#define _AGP_BACKEND_H 1
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#define AGPGART_VERSION_MAJOR 0
+#define AGPGART_VERSION_MINOR 99
+
+/** Supported chipset types */
+enum chipset_type {
+	NOT_SUPPORTED,
+	INTEL_GENERIC,
+	INTEL_LX,
+	INTEL_BX,
+	INTEL_GX,
+	INTEL_I810,
+	INTEL_I815,
+	INTEL_I820,
+	INTEL_I830_M,
+	INTEL_I845_G,
+	INTEL_I840,
+	INTEL_I845,
+	INTEL_I850,
+	INTEL_I860,
+	INTEL_460GX,
+	VIA_GENERIC,
+	VIA_VP3,
+	VIA_MVP3,
+	VIA_MVP4,
+	VIA_APOLLO_PRO,
+	VIA_APOLLO_KX133,
+	VIA_APOLLO_KT133,
+	SIS_GENERIC,
+	AMD_GENERIC,
+	AMD_IRONGATE,
+	AMD_761,
+	AMD_762,
+	AMD_8151,
+	ALI_M1541,
+	ALI_M1621,
+	ALI_M1631,
+	ALI_M1632,
+	ALI_M1641,
+	ALI_M1644,
+	ALI_M1647,
+	ALI_M1651,
+	ALI_M1671,
+	ALI_GENERIC,
+	SVWRKS_HE,
+	SVWRKS_LE,
+	SVWRKS_GENERIC,
+	HP_ZX1,
+};
+
+struct agp_version {
+	u16 major;
+	u16 minor;
+};
+
+typedef struct _agp_kern_info {
+	struct agp_version version;
+	struct pci_dev *device;
+	enum chipset_type chipset;
+	unsigned long mode;
+	off_t aper_base;
+	size_t aper_size;
+	int max_memory;		/**< In pages */
+	int current_memory;
+	int cant_use_aperture;
+	unsigned long page_mask;
+} agp_kern_info;
+
+/**
+ * The agp_memory structure has information
+ * about the block of agp memory allocated.
+ * A caller may manipulate the next and prev
+ * pointers to link each allocated item into
+ * a list.  These pointers are ignored by the 
+ * backend.  Everything else should never be
+ * written to, but the caller may read any of
+ * the items to detrimine the status of this
+ * block of agp memory.
+ */
+typedef struct _agp_memory {
+	int key;	/** hash key */
+	struct _agp_memory *next;
+	struct _agp_memory *prev;
+	size_t page_count;
+	int num_scratch_pages;
+	unsigned long *memory;
+	off_t pg_start;
+	u32 type;
+	u32 physical;
+	u8 is_bound;
+	u8 is_flushed;
+} agp_memory;
+
+#define AGP_NORMAL_MEMORY 0
+
+extern void agp_free_memory(agp_memory *);
+extern agp_memory *agp_allocate_memory(size_t, u32);
+extern int agp_copy_info(agp_kern_info *);
+extern int agp_bind_memory(agp_memory *, off_t);
+extern int agp_unbind_memory(agp_memory *);
+extern void agp_enable(u32);
+extern int agp_backend_acquire(void);
+
+extern void agp_backend_release(void);
+
+
+/**
+ * Interface between DRM and AGP code.  When AGP initializes, it makes
+ * this structure available via inter_module_register(), DRM might
+ * use it.
+ * 
+ * \author Keith Owens <kaos@ocs.com.au> 
+ * \date 28 Oct 2000.
+ */
+typedef struct {
+	void       (*free_memory)(agp_memory *);
+	agp_memory *(*allocate_memory)(size_t, u32);
+	int        (*bind_memory)(agp_memory *, off_t);
+	int        (*unbind_memory)(agp_memory *);
+	void       (*enable)(u32);
+	int        (*acquire)(void);
+	void       (*release)(void);
+	int        (*copy_info)(agp_kern_info *);
+} drm_agp_t;
+
+extern const drm_agp_t *drm_agp_p;
+
+#endif				/* _AGP_BACKEND_H */

src/kernel/agpgart/agpgart.h

@@ -0,0 +1,248 @@
+/**
+ * \file agpgart.h
+ * AGPGART module
+ * \version 0.99
+ * 
+ * \author Jeff Hartmann
+ */
+
+/*
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _AGP_H
+#define _AGP_H 1
+
+#define AGPIOC_BASE       'A'
+#define AGPIOC_INFO       _IOR (AGPIOC_BASE, 0, agp_info*)
+#define AGPIOC_ACQUIRE    _IO  (AGPIOC_BASE, 1)
+#define AGPIOC_RELEASE    _IO  (AGPIOC_BASE, 2)
+#define AGPIOC_SETUP      _IOW (AGPIOC_BASE, 3, agp_setup*)
+#define AGPIOC_RESERVE    _IOW (AGPIOC_BASE, 4, agp_region*)
+#define AGPIOC_PROTECT    _IOW (AGPIOC_BASE, 5, agp_region*)
+#define AGPIOC_ALLOCATE   _IOWR(AGPIOC_BASE, 6, agp_allocate*)
+#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)
+#define AGPIOC_BIND       _IOW (AGPIOC_BASE, 8, agp_bind*)
+#define AGPIOC_UNBIND     _IOW (AGPIOC_BASE, 9, agp_unbind*)
+
+#define AGP_DEVICE      "/dev/agpgart"
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef __KERNEL__
+#include <linux/types.h>
+#include <asm/types.h>
+
+struct agp_version {
+	__u16 major;
+	__u16 minor;
+};
+
+typedef struct _agp_info {
+	struct agp_version version;	/**< version of the driver        */
+	__u32 bridge_id;	/**< bridge vendor/device         */
+	__u32 agp_mode;		/**< mode info of bridge          */
+	off_t aper_base;	/**< base of aperture             */
+	size_t aper_size;	/**< size of aperture             */
+	size_t pg_total;	/**< max pages (swap + system)    */
+	size_t pg_system;	/**< max pages (system)           */
+	size_t pg_used;		/**< current pages used           */
+} agp_info;
+
+typedef struct _agp_setup {
+	__u32 agp_mode;		/**< mode info of bridge          */
+} agp_setup;
+
+/**<
+ * The "prot" down below needs still a "sleep" flag somehow ...
+ */
+typedef struct _agp_segment {
+	off_t pg_start;		/**< starting page to populate    */
+	size_t pg_count;	/**< number of pages              */
+	int prot;		/**< prot flags for mmap          */
+} agp_segment;
+
+typedef struct _agp_region {
+	pid_t pid;		/**< pid of process               */
+	size_t seg_count;	/**< number of segments           */
+	struct _agp_segment *seg_list;
+} agp_region;
+
+typedef struct _agp_allocate {
+	int key;		/**< tag of allocation            */
+	size_t pg_count;	/**< number of pages              */
+	__u32 type;		/**< 0 == normal, other devspec   */
+   	__u32 physical;         /**< device specific (some devices  
+				 * need a phys address of the     
+				 * actual page behind the gatt    
+				 * table)                        */
+} agp_allocate;
+
+typedef struct _agp_bind {
+	int key;		/**< tag of allocation            */
+	off_t pg_start;		/**< starting page to populate    */
+} agp_bind;
+
+typedef struct _agp_unbind {
+	int key;		/**< tag of allocation            */
+	__u32 priority;		/**< priority for paging out      */
+} agp_unbind;
+
+#else				/* __KERNEL__ */
+
+#define AGPGART_MINOR 175
+
+/** Unlocks the AGP device */
+#define AGP_UNLOCK()      	up(&(agp_fe.agp_mutex));
+/** Locks the AGP device */
+#define AGP_LOCK()    		down(&(agp_fe.agp_mutex));
+/** Initializes the AGP device lock */
+#define AGP_LOCK_INIT() 	sema_init(&(agp_fe.agp_mutex), 1)
+
+#ifndef _AGP_BACKEND_H
+struct _agp_version {
+	u16 major;
+	u16 minor;
+} agp_version;
+
+#endif
+
+/** Information ioctl argument */
+typedef struct _agp_info {
+	struct agp_version version;	/**< version of the driver        */
+	u32 bridge_id;		/**< bridge vendor/device         */
+	u32 agp_mode;		/**< mode info of bridge          */
+	off_t aper_base;	/**< base of aperture             */
+	size_t aper_size;	/**< size of aperture             */
+	size_t pg_total;	/**< max pages (swap + system)    */
+	size_t pg_system;	/**< max pages (system)           */
+	size_t pg_used;		/**< current pages used           */
+} agp_info;
+
+/** Setup ioctl argument */
+typedef struct _agp_setup {
+	u32 agp_mode;		/**< mode info of bridge          */
+} agp_setup;
+
+/** Segment (user). */
+typedef struct _agp_segment {
+	off_t pg_start;		/**< starting page to populate    */
+	size_t pg_count;	/**< number of pages              */
+	int prot;		/**< prot flags for mmap.
+				 * \todo still needs a "sleep" flag somehow...
+				 * */
+} agp_segment;
+
+/** Segment (private) */
+typedef struct _agp_segment_priv {
+	off_t pg_start;		/**< starting page to populate    */
+	size_t pg_count;	/**< number of pages              */
+	pgprot_t prot;		/**< memory protection flags      */
+} agp_segment_priv;
+
+/** Reserve ioctl argument */
+typedef struct _agp_region {
+	pid_t pid;		/**< pid of process               */
+	size_t seg_count;	/**< number of segments           */
+	struct _agp_segment *seg_list;
+} agp_region;
+
+/** Allocate ioctl argument */
+typedef struct _agp_allocate {
+	int key;		/**< tag of allocation            */
+	size_t pg_count;	/**< number of pages              */
+	u32 type;		/**< 0 == normal, other devspec   */
+	u32 physical;           /**< device specific (some devices  
+				 * need a phys address of the     
+				 * actual page behind the gatt    
+				 * table)                        */
+} agp_allocate;
+
+/** Bind ioctl argument */
+typedef struct _agp_bind {
+	int key;		/**< tag of allocation            */
+	off_t pg_start;		/**< starting page to populate    */
+} agp_bind;
+
+/** Unbind ioctl argument */
+typedef struct _agp_unbind {
+	int key;		/**< tag of allocation            */
+	u32 priority;		/**< priority for paging out      */
+} agp_unbind;
+
+/** AGP client */
+typedef struct _agp_client {
+	struct _agp_client *next;
+	struct _agp_client *prev;
+	pid_t pid;		/**< process id */
+	int num_segments;	/**< number of segments */
+	agp_segment_priv **segments;	/**< segment array */
+} agp_client;
+
+/** AGP controller. */
+typedef struct _agp_controller {
+	struct _agp_controller *next;
+	struct _agp_controller *prev;
+	pid_t pid;		/**< process id */
+	int num_clients;	/**< number of clients */
+	agp_memory *pool;	/**< doubly linked memory pool */
+	agp_client *clients;	/**< doubly linked client list */
+} agp_controller;
+
+/** \name File flags */
+/*@{*/
+#define AGP_FF_ALLOW_CLIENT		0
+#define AGP_FF_ALLOW_CONTROLLER 	1
+#define AGP_FF_IS_CLIENT		2
+#define AGP_FF_IS_CONTROLLER		3
+#define AGP_FF_IS_VALID 		4
+/*@}*/
+
+/** File private data. */
+typedef struct _agp_file_private {
+	struct _agp_file_private *next;
+	struct _agp_file_private *prev;
+	pid_t my_pid;		/**< process id */
+	long access_flags;	/**< long required for set_bit --RR */
+} agp_file_private;
+
+/** Frontend data. */
+struct agp_front_data {
+	struct semaphore agp_mutex;	/**< device mutex. \sa #AGP_INIT, #AGP_LOCK and #AGP_UNLOCK */
+	agp_controller *current_controller;	/**< current controller */
+	agp_controller *controllers;	/**< controllers list */
+	agp_file_private *file_priv_list;	/**< file private data doubly linked list */
+	u8 used_by_controller;
+	u8 backend_acquired;		/**< whether the backend has been acquired */
+};
+
+#endif				/* __KERNEL__ */
+
+#endif				/* _AGP_H */

src/kernel/agpgart/i810_agp.c

@@ -0,0 +1,600 @@
+/**
+ * \file i810_agp.c
+ * AGPGART module i810 backend
+ * \version 0.99
+ * 
+ * \author Jeff Hartmann
+ *
+ * \todo Allocate more than order 0 pages to avoid too much linear map splitting.
+ */
+
+/*
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/agp_backend.h>
+#include "agp.h"
+
+static struct aper_size_info_fixed intel_i810_sizes[] =
+{
+	{64, 16384, 4},
+     /* The 32M mode still requires a 64k gatt */
+	{32, 8192, 4}
+};
+
+#define AGP_DCACHE_MEMORY 1
+#define AGP_PHYS_MEMORY   2
+
+static struct gatt_mask intel_i810_masks[] =
+{
+	{mask: I810_PTE_VALID, type: 0},
+	{mask: (I810_PTE_VALID | I810_PTE_LOCAL), type: AGP_DCACHE_MEMORY},
+	{mask: I810_PTE_VALID, type: 0}
+};
+
+static struct _intel_i810_private {
+	struct pci_dev *i810_dev;	/* device one */
+	volatile u8 *registers;
+	int num_dcache_entries;
+} intel_i810_private;
+
+static int intel_i810_fetch_size(void)
+{
+	u32 smram_miscc;
+	struct aper_size_info_fixed *values;
+
+	pci_read_config_dword(agp_bridge.dev, I810_SMRAM_MISCC, &smram_miscc);
+	values = A_SIZE_FIX(agp_bridge.aperture_sizes);
+
+	if ((smram_miscc & I810_GMS) == I810_GMS_DISABLE) {
+		printk(KERN_WARNING PFX "i810 is disabled\n");
+		return 0;
+	}
+	if ((smram_miscc & I810_GFX_MEM_WIN_SIZE) == I810_GFX_MEM_WIN_32M) {
+		agp_bridge.previous_size =
+		    agp_bridge.current_size = (void *) (values + 1);
+		agp_bridge.aperture_size_idx = 1;
+		return values[1].size;
+	} else {
+		agp_bridge.previous_size =
+		    agp_bridge.current_size = (void *) (values);
+		agp_bridge.aperture_size_idx = 0;
+		return values[0].size;
+	}
+
+	return 0;
+}
+
+static int intel_i810_configure(void)
+{
+	struct aper_size_info_fixed *current_size;
+	u32 temp;
+	int i;
+
+	current_size = A_SIZE_FIX(agp_bridge.current_size);
+
+	pci_read_config_dword(intel_i810_private.i810_dev, I810_MMADDR, &temp);
+	temp &= 0xfff80000;
+
+	intel_i810_private.registers =
+	    (volatile u8 *) ioremap(temp, 128 * 4096);
+
+	if ((INREG32(intel_i810_private.registers, I810_DRAM_CTL)
+	     & I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
+		/* This will need to be dynamically assigned */
+		printk(KERN_INFO PFX "detected 4MB dedicated video ram.\n");
+		intel_i810_private.num_dcache_entries = 1024;
+	}
+	pci_read_config_dword(intel_i810_private.i810_dev, I810_GMADDR, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+	OUTREG32(intel_i810_private.registers, I810_PGETBL_CTL,
+		 agp_bridge.gatt_bus_addr | I810_PGETBL_ENABLED);
+	CACHE_FLUSH();
+
+	if (agp_bridge.needs_scratch_page == TRUE) {
+		for (i = 0; i < current_size->num_entries; i++) {
+			OUTREG32(intel_i810_private.registers,
+				 I810_PTE_BASE + (i * 4),
+				 agp_bridge.scratch_page);
+		}
+	}
+	return 0;
+}
+
+static void intel_i810_cleanup(void)
+{
+	OUTREG32(intel_i810_private.registers, I810_PGETBL_CTL, 0);
+	iounmap((void *) intel_i810_private.registers);
+}
+
+static void intel_i810_tlbflush(agp_memory * mem)
+{
+	return;
+}
+
+static void intel_i810_agp_enable(u32 mode)
+{
+	return;
+}
+
+static int intel_i810_insert_entries(agp_memory * mem, off_t pg_start,
+				     int type)
+{
+	int i, j, num_entries;
+	void *temp;
+
+	temp = agp_bridge.current_size;
+	num_entries = A_SIZE_FIX(temp)->num_entries;
+
+	if ((pg_start + mem->page_count) > num_entries) {
+		return -EINVAL;
+	}
+	for (j = pg_start; j < (pg_start + mem->page_count); j++) {
+		if (!PGE_EMPTY(agp_bridge.gatt_table[j])) {
+			return -EBUSY;
+		}
+	}
+
+	if (type != 0 || mem->type != 0) {
+		if ((type == AGP_DCACHE_MEMORY) &&
+		    (mem->type == AGP_DCACHE_MEMORY)) {
+			/* special insert */
+			CACHE_FLUSH();
+			for (i = pg_start;
+			     i < (pg_start + mem->page_count); i++) {
+				OUTREG32(intel_i810_private.registers,
+					 I810_PTE_BASE + (i * 4),
+					 (i * 4096) | I810_PTE_LOCAL |
+					 I810_PTE_VALID);
+			}
+			CACHE_FLUSH();
+			agp_bridge.tlb_flush(mem);
+			return 0;
+		}
+	        if((type == AGP_PHYS_MEMORY) &&
+		   (mem->type == AGP_PHYS_MEMORY)) {
+		   goto insert;
+		}
+		return -EINVAL;
+	}
+
+insert:
+   	CACHE_FLUSH();
+	for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
+		OUTREG32(intel_i810_private.registers,
+			 I810_PTE_BASE + (j * 4), mem->memory[i]);
+	}
+	CACHE_FLUSH();
+
+	agp_bridge.tlb_flush(mem);
+	return 0;
+}
+
+static int intel_i810_remove_entries(agp_memory * mem, off_t pg_start,
+				     int type)
+{
+	int i;
+
+	for (i = pg_start; i < (mem->page_count + pg_start); i++) {
+		OUTREG32(intel_i810_private.registers,
+			 I810_PTE_BASE + (i * 4),
+			 agp_bridge.scratch_page);
+	}
+
+	CACHE_FLUSH();
+	agp_bridge.tlb_flush(mem);
+	return 0;
+}
+
+static agp_memory *intel_i810_alloc_by_type(size_t pg_count, int type)
+{
+	agp_memory *new;
+
+	if (type == AGP_DCACHE_MEMORY) {
+		if (pg_count != intel_i810_private.num_dcache_entries) {
+			return NULL;
+		}
+		new = agp_create_memory(1);
+
+		if (new == NULL) {
+			return NULL;
+		}
+		new->type = AGP_DCACHE_MEMORY;
+		new->page_count = pg_count;
+		new->num_scratch_pages = 0;
+		vfree(new->memory);
+	   	MOD_INC_USE_COUNT;
+		return new;
+	}
+	if(type == AGP_PHYS_MEMORY) {
+		void *addr;
+		/* The I810 requires a physical address to program
+		 * it's mouse pointer into hardware.  However the
+		 * Xserver still writes to it through the agp
+		 * aperture
+		 */
+	   	if (pg_count != 1) {
+		   	return NULL;
+		}
+	   	new = agp_create_memory(1);
+
+		if (new == NULL) {
+			return NULL;
+		}
+	   	MOD_INC_USE_COUNT;
+		addr = agp_bridge.agp_alloc_page();
+
+		if (addr == NULL) {
+			/* Free this structure */
+			agp_free_memory(new);
+			return NULL;
+		}
+		new->memory[0] = agp_bridge.mask_memory(virt_to_phys(addr), type);
+		new->page_count = 1;
+	   	new->num_scratch_pages = 1;
+	   	new->type = AGP_PHYS_MEMORY;
+	        new->physical = virt_to_phys((void *) new->memory[0]);
+	   	return new;
+	}
+   
+	return NULL;
+}
+
+static void intel_i810_free_by_type(agp_memory * curr)
+{
+	agp_free_key(curr->key);
+   	if(curr->type == AGP_PHYS_MEMORY) {
+	   	agp_bridge.agp_destroy_page(
+				 phys_to_virt(curr->memory[0]));
+		vfree(curr->memory);
+	}
+	kfree(curr);
+   	MOD_DEC_USE_COUNT;
+}
+
+static unsigned long intel_i810_mask_memory(unsigned long addr, int type)
+{
+	/* Type checking must be done elsewhere */
+	return addr | agp_bridge.masks[type].mask;
+}
+
+int __init intel_i810_setup(struct pci_dev *i810_dev)
+{
+	intel_i810_private.i810_dev = i810_dev;
+
+	agp_bridge.masks = intel_i810_masks;
+	agp_bridge.num_of_masks = 2;
+	agp_bridge.aperture_sizes = (void *) intel_i810_sizes;
+	agp_bridge.size_type = FIXED_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 2;
+	agp_bridge.dev_private_data = (void *) &intel_i810_private;
+	agp_bridge.needs_scratch_page = TRUE;
+	agp_bridge.configure = intel_i810_configure;
+	agp_bridge.fetch_size = intel_i810_fetch_size;
+	agp_bridge.cleanup = intel_i810_cleanup;
+	agp_bridge.tlb_flush = intel_i810_tlbflush;
+	agp_bridge.mask_memory = intel_i810_mask_memory;
+	agp_bridge.agp_enable = intel_i810_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+	agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+	agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+	agp_bridge.insert_memory = intel_i810_insert_entries;
+	agp_bridge.remove_memory = intel_i810_remove_entries;
+	agp_bridge.alloc_by_type = intel_i810_alloc_by_type;
+	agp_bridge.free_by_type = intel_i810_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = agp_generic_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return 0;
+}
+
+static struct aper_size_info_fixed intel_i830_sizes[] =
+{
+	{128, 32768, 5},
+	/* The 64M mode still requires a 128k gatt */
+	{64, 16384, 5}
+};
+
+static struct _intel_i830_private {
+	struct pci_dev *i830_dev;   /* device one */
+	volatile u8 *registers;
+	int gtt_entries;
+} intel_i830_private;
+
+static void intel_i830_init_gtt_entries(void)
+{
+	u16 gmch_ctrl;
+	int gtt_entries;
+	u8 rdct;
+	static const int ddt[4] = { 0, 16, 32, 64 };
+
+	pci_read_config_word(agp_bridge.dev,I830_GMCH_CTRL,&gmch_ctrl);
+
+	switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+	case I830_GMCH_GMS_STOLEN_512:
+		gtt_entries = KB(512) - KB(132);
+		printk(KERN_INFO PFX "detected %dK stolen memory.\n",gtt_entries / KB(1));
+		break;
+	case I830_GMCH_GMS_STOLEN_1024:
+		gtt_entries = MB(1) - KB(132);
+		printk(KERN_INFO PFX "detected %dK stolen memory.\n",gtt_entries / KB(1));
+		break;
+	case I830_GMCH_GMS_STOLEN_8192:
+		gtt_entries = MB(8) - KB(132);
+		printk(KERN_INFO PFX "detected %dK stolen memory.\n",gtt_entries / KB(1));
+		break;
+	case I830_GMCH_GMS_LOCAL:
+		rdct = INREG8(intel_i830_private.registers,I830_RDRAM_CHANNEL_TYPE);
+		gtt_entries = (I830_RDRAM_ND(rdct) + 1) * MB(ddt[I830_RDRAM_DDT(rdct)]);
+		printk(KERN_INFO PFX "detected %dK local memory.\n",gtt_entries / KB(1));
+		break;
+	default:
+		printk(KERN_INFO PFX "no video memory detected.\n");
+		gtt_entries = 0;
+		break;
+	}
+
+	gtt_entries /= KB(4);
+
+	intel_i830_private.gtt_entries = gtt_entries;
+}
+
+/* The intel i830 automatically initializes the agp aperture during POST.
+ * Use the memory already set aside for in the GTT.
+ */
+static int intel_i830_create_gatt_table(void)
+{
+	int page_order;
+	struct aper_size_info_fixed *size;
+	int num_entries;
+	u32 temp;
+
+	size = agp_bridge.current_size;
+	page_order = size->page_order;
+	num_entries = size->num_entries;
+	agp_bridge.gatt_table_real = 0;
+
+	pci_read_config_dword(intel_i830_private.i830_dev,I810_MMADDR,&temp);
+	temp &= 0xfff80000;
+
+	intel_i830_private.registers = (volatile u8 *) ioremap(temp,128 * 4096);
+	if (!intel_i830_private.registers) return (-ENOMEM);
+
+	temp = INREG32(intel_i830_private.registers,I810_PGETBL_CTL) & 0xfffff000;
+	CACHE_FLUSH();
+
+	/* we have to call this as early as possible after the MMIO base address is known */
+	intel_i830_init_gtt_entries();
+
+	agp_bridge.gatt_table = NULL;
+
+	agp_bridge.gatt_bus_addr = temp;
+
+	return(0);
+}
+
+/* Return the gatt table to a sane state. Use the top of stolen
+ * memory for the GTT.
+ */
+static int intel_i830_free_gatt_table(void)
+{
+	return(0);
+}
+
+static int intel_i830_fetch_size(void)
+{
+	u16 gmch_ctrl;
+	struct aper_size_info_fixed *values;
+
+	pci_read_config_word(agp_bridge.dev,I830_GMCH_CTRL,&gmch_ctrl);
+	values = A_SIZE_FIX(agp_bridge.aperture_sizes);
+
+	if ((gmch_ctrl & I830_GMCH_MEM_MASK) == I830_GMCH_MEM_128M) {
+		agp_bridge.previous_size = agp_bridge.current_size = (void *) values;
+		agp_bridge.aperture_size_idx = 0;
+		return(values[0].size);
+	} else {
+		agp_bridge.previous_size = agp_bridge.current_size = (void *) values;
+		agp_bridge.aperture_size_idx = 1;
+		return(values[1].size);
+	}
+
+	return(0);
+}
+
+static int intel_i830_configure(void)
+{
+	struct aper_size_info_fixed *current_size;
+	u32 temp;
+	u16 gmch_ctrl;
+	int i;
+
+	current_size = A_SIZE_FIX(agp_bridge.current_size);
+
+	pci_read_config_dword(intel_i830_private.i830_dev,I810_GMADDR,&temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	pci_read_config_word(agp_bridge.dev,I830_GMCH_CTRL,&gmch_ctrl);
+	gmch_ctrl |= I830_GMCH_ENABLED;
+	pci_write_config_word(agp_bridge.dev,I830_GMCH_CTRL,gmch_ctrl);
+
+	OUTREG32(intel_i830_private.registers,I810_PGETBL_CTL,agp_bridge.gatt_bus_addr | I810_PGETBL_ENABLED);
+	CACHE_FLUSH();
+
+	if (agp_bridge.needs_scratch_page == TRUE)
+		for (i = intel_i830_private.gtt_entries; i < current_size->num_entries; i++)
+			OUTREG32(intel_i830_private.registers,I810_PTE_BASE + (i * 4),agp_bridge.scratch_page);
+
+	return (0);
+}
+
+static void intel_i830_cleanup(void)
+{
+	iounmap((void *) intel_i830_private.registers);
+}
+
+static int intel_i830_insert_entries(agp_memory *mem,off_t pg_start,int type)
+{
+	int i,j,num_entries;
+	void *temp;
+
+	temp = agp_bridge.current_size;
+	num_entries = A_SIZE_FIX(temp)->num_entries;
+
+	if (pg_start < intel_i830_private.gtt_entries) {
+		printk (KERN_DEBUG "pg_start == 0x%.8lx,intel_i830_private.gtt_entries == 0x%.8x\n",
+				pg_start,intel_i830_private.gtt_entries);
+
+		printk ("Trying to insert into local/stolen memory\n");
+		return (-EINVAL);
+	}
+
+	if ((pg_start + mem->page_count) > num_entries)
+		return (-EINVAL);
+
+	/* The i830 can't check the GTT for entries since its read only,
+	 * depend on the caller to make the correct offset decisions.
+	 */
+
+	if ((type != 0 && type != AGP_PHYS_MEMORY) ||
+		(mem->type != 0 && mem->type != AGP_PHYS_MEMORY))
+		return (-EINVAL);
+
+	CACHE_FLUSH();
+
+	for (i = 0, j = pg_start; i < mem->page_count; i++, j++)
+		OUTREG32(intel_i830_private.registers,I810_PTE_BASE + (j * 4),mem->memory[i]);
+
+	CACHE_FLUSH();
+
+	agp_bridge.tlb_flush(mem);
+
+	return(0);
+}
+
+static int intel_i830_remove_entries(agp_memory *mem,off_t pg_start,int type)
+{
+	int i;
+
+	CACHE_FLUSH ();
+
+	if (pg_start < intel_i830_private.gtt_entries) {
+		printk ("Trying to disable local/stolen memory\n");
+		return (-EINVAL);
+	}
+
+	for (i = pg_start; i < (mem->page_count + pg_start); i++)
+		OUTREG32(intel_i830_private.registers,I810_PTE_BASE + (i * 4),agp_bridge.scratch_page);
+
+	CACHE_FLUSH();
+
+	agp_bridge.tlb_flush(mem);
+
+	return (0);
+}
+
+static agp_memory *intel_i830_alloc_by_type(size_t pg_count,int type)
+{
+	agp_memory *nw;
+
+	/* always return NULL for now */
+	if (type == AGP_DCACHE_MEMORY) return(NULL);
+
+	if (type == AGP_PHYS_MEMORY) {
+		void *addr;
+
+		/* The i830 requires a physical address to program
+		 * it's mouse pointer into hardware. However the
+		 * Xserver still writes to it through the agp
+		 * aperture
+		 */
+
+		if (pg_count != 1) return(NULL);
+
+		nw = agp_create_memory(1);
+
+		if (nw == NULL) return(NULL);
+
+		MOD_INC_USE_COUNT;
+		addr = agp_bridge.agp_alloc_page();
+		if (addr == NULL) {
+			/* free this structure */
+			agp_free_memory(nw);
+			return(NULL);
+		}
+
+		nw->memory[0] = agp_bridge.mask_memory(virt_to_phys(addr),type);
+		nw->page_count = 1;
+		nw->num_scratch_pages = 1;
+		nw->type = AGP_PHYS_MEMORY;
+		nw->physical = virt_to_phys(addr);
+		return(nw);
+	}
+
+	return(NULL);
+}
+
+int __init intel_i830_setup(struct pci_dev *i830_dev)
+{
+	intel_i830_private.i830_dev = i830_dev;
+
+	agp_bridge.masks = intel_i810_masks;
+	agp_bridge.num_of_masks = 3;
+	agp_bridge.aperture_sizes = (void *) intel_i830_sizes;
+	agp_bridge.size_type = FIXED_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 2;
+
+	agp_bridge.dev_private_data = (void *) &intel_i830_private;
+	agp_bridge.needs_scratch_page = TRUE;
+
+	agp_bridge.configure = intel_i830_configure;
+	agp_bridge.fetch_size = intel_i830_fetch_size;
+	agp_bridge.cleanup = intel_i830_cleanup;
+	agp_bridge.tlb_flush = intel_i810_tlbflush;
+	agp_bridge.mask_memory = intel_i810_mask_memory;
+	agp_bridge.agp_enable = intel_i810_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+
+	agp_bridge.create_gatt_table = intel_i830_create_gatt_table;
+	agp_bridge.free_gatt_table = intel_i830_free_gatt_table;
+
+	agp_bridge.insert_memory = intel_i830_insert_entries;
+	agp_bridge.remove_memory = intel_i830_remove_entries;
+	agp_bridge.alloc_by_type = intel_i830_alloc_by_type;
+	agp_bridge.free_by_type = intel_i810_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = agp_generic_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return(0);
+}
+

src/kernel/agpgart/i8x0_agp.c

@@ -0,0 +1,872 @@
+/**
+ * \file i8x0_agp.c
+ * AGPGART module i8x0 backend
+ * \version 0.99
+ * 
+ * \author Jeff Hartmann
+ *
+ * \todo Allocate more than order 0 pages to avoid too much linear map splitting.
+ */
+
+/*
+ * Copyright (C) 1999 Jeff Hartmann
+ * Copyright (C) 1999 Precision Insight, Inc.
+ * Copyright (C) 1999 Xi Graphics, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/agp_backend.h>
+#include "agp.h"
+
+
+/**
+ * Fetch aperture size -- Intel generic.
+ *
+ * \return always zero.
+ *
+ * Reads the aperture size from the hardware and points agp_bridge_data::previous_size and
+ * agp_bridge_data::current_size to the agp_bridge_data::aperture_sizes entry
+ * with the matching aperture size.
+ */
+static int intel_fetch_size(void)
+{
+	int i;
+	u16 temp;
+	struct aper_size_info_16 *values;
+
+	pci_read_config_word(agp_bridge.dev, INTEL_APSIZE, &temp);
+	values = A_SIZE_16(agp_bridge.aperture_sizes);
+
+	for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
+		if (temp == values[i].size_value) {
+			agp_bridge.previous_size =
+			    agp_bridge.current_size = (void *) (values + i);
+			agp_bridge.aperture_size_idx = i;
+			return values[i].size;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * Fetch aperture size -- Intel i8xx.
+ *
+ * \return always zero.
+ *
+ * Same as for intel_fetch_size() but with special care for Intel 815 chipsets
+ * which have only one non-reserved bit on the APSIZE register.
+ */
+static int intel_8xx_fetch_size(void)
+{
+	int i;
+	u8 temp;
+	struct aper_size_info_8 *values;
+
+	pci_read_config_byte(agp_bridge.dev, INTEL_APSIZE, &temp);
+
+	/* Intel 815 chipsets have a _weird_ APSIZE register with only
+	 * one non-reserved bit, so mask the others out ... */
+	if (agp_bridge.type == INTEL_I815)
+		temp &= (1 << 3);
+
+	values = A_SIZE_8(agp_bridge.aperture_sizes);
+
+	for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
+		if (temp == values[i].size_value) {
+			agp_bridge.previous_size =
+				agp_bridge.current_size = (void *) (values + i);
+			agp_bridge.aperture_size_idx = i;
+			return values[i].size;
+		}
+	}
+	return 0;
+}
+
+
+/**
+ * Flush the table -- Intel generic.
+ */
+static void intel_tlbflush(agp_memory * mem)
+{
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x2200);
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x2280);
+}
+
+
+/**
+ * Flush the table -- Intel i8xx.
+ */
+static void intel_8xx_tlbflush(agp_memory * mem)
+{
+  u32 temp;
+  pci_read_config_dword(agp_bridge.dev, INTEL_AGPCTRL, &temp);
+  pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, temp & ~(1 << 7));
+  pci_read_config_dword(agp_bridge.dev, INTEL_AGPCTRL, &temp);
+  pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, temp | (1 << 7));
+}
+
+
+/** 
+ * Backend cleanup -- Intel generic.
+ *
+ * Resets the hardware using the previous aperture size.
+ */
+static void intel_cleanup(void)
+{
+	u16 temp;
+	struct aper_size_info_16 *previous_size;
+
+	previous_size = A_SIZE_16(agp_bridge.previous_size);
+	pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp);
+	pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG, temp & ~(1 << 9));
+	pci_write_config_word(agp_bridge.dev, INTEL_APSIZE,
+			      previous_size->size_value);
+}
+
+
+/** 
+ * Backend cleanup -- Intel i8xx.
+ *
+ * Same as intel_cleanup().
+ */
+static void intel_8xx_cleanup(void)
+{
+	u16 temp;
+	struct aper_size_info_8 *previous_size;
+
+	previous_size = A_SIZE_8(agp_bridge.previous_size);
+	pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp);
+	pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG, temp & ~(1 << 9));
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      previous_size->size_value);
+}
+
+
+/**
+ * Configure -- Intel generic.
+ *
+ * \return always zero.
+ *
+ * Updates the hardware registers to match the information in agp_bridge_data.
+ */
+static int intel_configure(void)
+{
+	u32 temp;
+	u16 temp2;
+	struct aper_size_info_16 *current_size;
+
+	current_size = A_SIZE_16(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_word(agp_bridge.dev, INTEL_APSIZE,
+			      current_size->size_value);
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
+			       agp_bridge.gatt_bus_addr);
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x2280);
+
+	/* paccfg/nbxcfg */
+	pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp2);
+	pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG,
+			      (temp2 & ~(1 << 10)) | (1 << 9));
+	/* clear any possible error conditions */
+	pci_write_config_byte(agp_bridge.dev, INTEL_ERRSTS + 1, 7);
+	return 0;
+}
+
+/**
+ * Configure -- Intel i815.
+ *
+ * Similar to intel_configure()
+ */
+static int intel_815_configure(void)
+{
+	u32 temp, addr;
+	u8 temp2;
+	struct aper_size_info_8 *current_size;
+
+	current_size = A_SIZE_8(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			current_size->size_value); 
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	/* the Intel 815 chipset spec. says that bits 29-31 in the
+	* ATTBASE register are reserved -> try not to write them */
+	if (agp_bridge.gatt_bus_addr &  INTEL_815_ATTBASE_MASK)
+		panic("gatt bus addr too high");
+	pci_read_config_dword(agp_bridge.dev, INTEL_ATTBASE, &addr);
+	addr &= INTEL_815_ATTBASE_MASK;
+	addr |= agp_bridge.gatt_bus_addr;
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE, addr);
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000); 
+
+	/* apcont */
+	pci_read_config_byte(agp_bridge.dev, INTEL_815_APCONT, &temp2);
+	pci_write_config_byte(agp_bridge.dev, INTEL_815_APCONT, temp2 | (1 << 1));
+
+	/* clear any possible error conditions */
+	/* Oddness : this chipset seems to have no ERRSTS register ! */
+	return 0;
+}
+
+/** No-op. */
+static void intel_820_tlbflush(agp_memory * mem)
+{
+  return;
+}
+
+/** 
+ * Backend cleanup -- Intel i8xx.
+ *
+ * Similar to as intel_cleanup().
+ */
+static void intel_820_cleanup(void)
+{
+	u8 temp;
+	struct aper_size_info_8 *previous_size;
+
+	previous_size = A_SIZE_8(agp_bridge.previous_size);
+	pci_read_config_byte(agp_bridge.dev, INTEL_I820_RDCR, &temp);
+	pci_write_config_byte(agp_bridge.dev, INTEL_I820_RDCR, 
+			      temp & ~(1 << 1));
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      previous_size->size_value);
+}
+
+
+/**
+ * Configure -- Intel i820.
+ *
+ * Similar to intel_configure()
+ */
+static int intel_820_configure(void)
+{
+	u32 temp;
+ 	u8 temp2; 
+	struct aper_size_info_8 *current_size;
+
+	current_size = A_SIZE_8(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      current_size->size_value); 
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
+			       agp_bridge.gatt_bus_addr); 
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000); 
+
+	/* global enable aperture access */
+	/* This flag is not accessed through MCHCFG register as in */
+	/* i850 chipset. */
+	pci_read_config_byte(agp_bridge.dev, INTEL_I820_RDCR, &temp2);
+	pci_write_config_byte(agp_bridge.dev, INTEL_I820_RDCR, 
+			      temp2 | (1 << 1));
+	/* clear any possible AGP-related error conditions */
+	pci_write_config_word(agp_bridge.dev, INTEL_I820_ERRSTS, 0x001c); 
+	return 0;
+}
+
+/**
+ * Configure -- Intel i840.
+ *
+ * Similar to intel_configure()
+ */
+static int intel_840_configure(void)
+{
+	u32 temp;
+	u16 temp2;
+	struct aper_size_info_8 *current_size;
+
+	current_size = A_SIZE_8(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      current_size->size_value); 
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
+			       agp_bridge.gatt_bus_addr); 
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000); 
+
+	/* mcgcfg */
+	pci_read_config_word(agp_bridge.dev, INTEL_I840_MCHCFG, &temp2);
+	pci_write_config_word(agp_bridge.dev, INTEL_I840_MCHCFG,
+			      temp2 | (1 << 9));
+	/* clear any possible error conditions */
+	pci_write_config_word(agp_bridge.dev, INTEL_I840_ERRSTS, 0xc000); 
+	return 0;
+}
+
+/**
+ * Configure -- Intel i845.
+ *
+ * Similar to intel_configure()
+ */
+static int intel_845_configure(void)
+{
+	u32 temp;
+	u8 temp2;
+	struct aper_size_info_8 *current_size;
+
+	current_size = A_SIZE_8(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      current_size->size_value); 
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
+			       agp_bridge.gatt_bus_addr); 
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000); 
+
+	/* agpm */
+	pci_read_config_byte(agp_bridge.dev, INTEL_I845_AGPM, &temp2);
+	pci_write_config_byte(agp_bridge.dev, INTEL_I845_AGPM,
+			      temp2 | (1 << 1));
+	/* clear any possible error conditions */
+	pci_write_config_word(agp_bridge.dev, INTEL_I845_ERRSTS, 0x001c); 
+	return 0;
+}
+
+/** Calls intel_845_configure() */
+static void intel_845_resume(void)
+{
+	intel_845_configure();
+}
+
+/**
+ * Configure -- Intel i850.
+ *
+ * Similar to intel_configure()
+ */
+static int intel_850_configure(void)
+{
+	u32 temp;
+	u16 temp2;
+	struct aper_size_info_8 *current_size;
+
+	current_size = A_SIZE_8(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      current_size->size_value); 
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
+			       agp_bridge.gatt_bus_addr); 
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000); 
+
+	/* mcgcfg */
+	pci_read_config_word(agp_bridge.dev, INTEL_I850_MCHCFG, &temp2);
+	pci_write_config_word(agp_bridge.dev, INTEL_I850_MCHCFG,
+			      temp2 | (1 << 9));
+	/* clear any possible AGP-related error conditions */
+	pci_write_config_word(agp_bridge.dev, INTEL_I850_ERRSTS, 0x001c); 
+	return 0;
+}
+
+/**
+ * Configure -- Intel i860.
+ *
+ * Similar to intel_configure()
+ */
+static int intel_860_configure(void)
+{
+	u32 temp;
+	u16 temp2;
+	struct aper_size_info_8 *current_size;
+
+	current_size = A_SIZE_8(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      current_size->size_value);
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
+			       agp_bridge.gatt_bus_addr);
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
+
+	/* mcgcfg */
+	pci_read_config_word(agp_bridge.dev, INTEL_I860_MCHCFG, &temp2);
+	pci_write_config_word(agp_bridge.dev, INTEL_I860_MCHCFG,
+			      temp2 | (1 << 9));
+	/* clear any possible AGP-related error conditions */
+	pci_write_config_word(agp_bridge.dev, INTEL_I860_ERRSTS, 0xf700);
+	return 0;
+}
+
+/**
+ * Configure -- Intel i830mp.
+ *
+ * Similar to intel_configure()
+ */
+static int intel_830mp_configure(void)
+{
+	u32 temp;
+	u16 temp2;
+	struct aper_size_info_8 *current_size;
+
+	current_size = A_SIZE_8(agp_bridge.current_size);
+
+	/* aperture size */
+	pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
+			      current_size->size_value);
+
+	/* address to map to */
+	pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
+	agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
+
+	/* attbase - aperture base */
+	pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
+			       agp_bridge.gatt_bus_addr);
+
+	/* agpctrl */
+	pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
+
+	/* gmch */
+	pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp2);
+	pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG,
+			      temp2 | (1 << 9));
+	/* clear any possible AGP-related error conditions */
+	pci_write_config_word(agp_bridge.dev, INTEL_I830_ERRSTS, 0x1c);
+	return 0;
+}
+
+/** 
+ * Masks against the first mask in agp_bridge_data::masks.
+ */
+static unsigned long intel_mask_memory(unsigned long addr, int type)
+{
+	/* Memory type is ignored */
+
+	return addr | agp_bridge.masks[0].mask;
+}
+
+/** Calls intel_configure() */
+static void intel_resume(void)
+{
+	intel_configure();
+}
+
+/** Setup function */
+static struct gatt_mask intel_generic_masks[] =
+{
+	{mask: 0x00000017, type: 0}
+};
+
+/** Aperture sizes -- Intel i815 */
+static struct aper_size_info_8 intel_815_sizes[2] =
+{
+	{64, 16384, 4, 0},
+	{32, 8192, 3, 8},
+};
+	
+/** Aperture sizes -- Intel i8xx */
+static struct aper_size_info_8 intel_8xx_sizes[7] =
+{
+	{256, 65536, 6, 0},
+	{128, 32768, 5, 32},
+	{64, 16384, 4, 48},
+	{32, 8192, 3, 56},
+	{16, 4096, 2, 60},
+	{8, 2048, 1, 62},
+	{4, 1024, 0, 63}
+};
+
+/** Aperture sizes -- Intel generic */
+static struct aper_size_info_16 intel_generic_sizes[7] =
+{
+	{256, 65536, 6, 0},
+	{128, 32768, 5, 32},
+	{64, 16384, 4, 48},
+	{32, 8192, 3, 56},
+	{16, 4096, 2, 60},
+	{8, 2048, 1, 62},
+	{4, 1024, 0, 63}
+};
+
+/** Aperture sizes -- Intel i830mp */
+static struct aper_size_info_8 intel_830mp_sizes[4] = 
+{
+  {256, 65536, 6, 0},
+  {128, 32768, 5, 32},
+  {64, 16384, 4, 48},
+  {32, 8192, 3, 56}
+};
+
+/**
+ * Setup -- Intel generic.
+ *
+ * \param pdev not referenced.
+ * \return always zero.
+ * 
+ * Initializes the device dependent part agp_bride_data structure in agp_bride,
+ * using a mixture of the functions above and the generic driver functions in
+ * agp.c for the driver callbacks.
+ */
+int __init intel_generic_setup (struct pci_dev *pdev)
+{
+	agp_bridge.masks = intel_generic_masks;
+	agp_bridge.num_of_masks = 1;
+	agp_bridge.aperture_sizes = (void *) intel_generic_sizes;
+	agp_bridge.size_type = U16_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 7;
+	agp_bridge.dev_private_data = NULL;
+	agp_bridge.needs_scratch_page = FALSE;
+	agp_bridge.configure = intel_configure;
+	agp_bridge.fetch_size = intel_fetch_size;
+	agp_bridge.cleanup = intel_cleanup;
+	agp_bridge.tlb_flush = intel_tlbflush;
+	agp_bridge.mask_memory = intel_mask_memory;
+	agp_bridge.agp_enable = agp_generic_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+	agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+	agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+	agp_bridge.insert_memory = agp_generic_insert_memory;
+	agp_bridge.remove_memory = agp_generic_remove_memory;
+	agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+	agp_bridge.free_by_type = agp_generic_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = intel_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return 0;
+	
+	(void) pdev; /* unused */
+}
+
+/**
+ * Setup -- Intel i815.
+ *
+ * Similar to intel_generic_setup().
+ */
+int __init intel_815_setup (struct pci_dev *pdev)
+{
+	agp_bridge.masks = intel_generic_masks;
+	agp_bridge.num_of_masks = 1;
+	agp_bridge.aperture_sizes = (void *) intel_815_sizes;
+	agp_bridge.size_type = U8_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 2;
+	agp_bridge.dev_private_data = NULL;
+	agp_bridge.needs_scratch_page = FALSE;
+	agp_bridge.configure = intel_815_configure;
+	agp_bridge.fetch_size = intel_8xx_fetch_size;
+	agp_bridge.cleanup = intel_8xx_cleanup;
+	agp_bridge.tlb_flush = intel_8xx_tlbflush;
+	agp_bridge.mask_memory = intel_mask_memory;
+	agp_bridge.agp_enable = agp_generic_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+	agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+	agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+	agp_bridge.insert_memory = agp_generic_insert_memory;
+	agp_bridge.remove_memory = agp_generic_remove_memory;
+	agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+	agp_bridge.free_by_type = agp_generic_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = agp_generic_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return 0;
+}
+
+
+/**
+ * Setup -- Intel i820.
+ *
+ * Similar to intel_generic_setup().
+ */
+int __init intel_820_setup (struct pci_dev *pdev)
+{
+       agp_bridge.masks = intel_generic_masks;
+       agp_bridge.num_of_masks = 1;
+       agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
+       agp_bridge.size_type = U8_APER_SIZE;
+       agp_bridge.num_aperture_sizes = 7;
+       agp_bridge.dev_private_data = NULL;
+       agp_bridge.needs_scratch_page = FALSE;
+       agp_bridge.configure = intel_820_configure;
+       agp_bridge.fetch_size = intel_8xx_fetch_size;
+       agp_bridge.cleanup = intel_820_cleanup;
+       agp_bridge.tlb_flush = intel_820_tlbflush;
+       agp_bridge.mask_memory = intel_mask_memory;
+       agp_bridge.agp_enable = agp_generic_agp_enable;
+       agp_bridge.cache_flush = global_cache_flush;
+       agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+       agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+       agp_bridge.insert_memory = agp_generic_insert_memory;
+       agp_bridge.remove_memory = agp_generic_remove_memory;
+       agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+       agp_bridge.free_by_type = agp_generic_free_by_type;
+       agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+       agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+       agp_bridge.suspend = agp_generic_suspend;
+       agp_bridge.resume = agp_generic_resume;
+       agp_bridge.cant_use_aperture = 0;
+
+       return 0;
+
+       (void) pdev; /* unused */
+}
+
+/**
+ * Setup -- Intel i830mp.
+ *
+ * Similar to intel_generic_setup().
+ */
+int __init intel_830mp_setup (struct pci_dev *pdev)
+{
+       agp_bridge.masks = intel_generic_masks;
+       agp_bridge.num_of_masks = 1;
+       agp_bridge.aperture_sizes = (void *) intel_830mp_sizes;
+       agp_bridge.size_type = U8_APER_SIZE;
+       agp_bridge.num_aperture_sizes = 4;
+       agp_bridge.dev_private_data = NULL;
+       agp_bridge.needs_scratch_page = FALSE;
+       agp_bridge.configure = intel_830mp_configure;
+       agp_bridge.fetch_size = intel_8xx_fetch_size;
+       agp_bridge.cleanup = intel_8xx_cleanup;
+       agp_bridge.tlb_flush = intel_8xx_tlbflush;
+       agp_bridge.mask_memory = intel_mask_memory;
+       agp_bridge.agp_enable = agp_generic_agp_enable;
+       agp_bridge.cache_flush = global_cache_flush;
+       agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+       agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+       agp_bridge.insert_memory = agp_generic_insert_memory;
+       agp_bridge.remove_memory = agp_generic_remove_memory;
+       agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+       agp_bridge.free_by_type = agp_generic_free_by_type;
+       agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+       agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+       agp_bridge.suspend = agp_generic_suspend;
+       agp_bridge.resume = agp_generic_resume;
+       agp_bridge.cant_use_aperture = 0;
+
+       return 0;
+
+       (void) pdev; /* unused */
+}
+
+/**
+ * Setup -- Intel i840.
+ *
+ * Similar to intel_generic_setup().
+ */
+int __init intel_840_setup (struct pci_dev *pdev)
+{
+	agp_bridge.masks = intel_generic_masks;
+	agp_bridge.num_of_masks = 1;
+	agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
+	agp_bridge.size_type = U8_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 7;
+	agp_bridge.dev_private_data = NULL;
+	agp_bridge.needs_scratch_page = FALSE;
+	agp_bridge.configure = intel_840_configure;
+	agp_bridge.fetch_size = intel_8xx_fetch_size;
+	agp_bridge.cleanup = intel_8xx_cleanup;
+	agp_bridge.tlb_flush = intel_8xx_tlbflush;
+	agp_bridge.mask_memory = intel_mask_memory;
+	agp_bridge.agp_enable = agp_generic_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+	agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+	agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+	agp_bridge.insert_memory = agp_generic_insert_memory;
+	agp_bridge.remove_memory = agp_generic_remove_memory;
+	agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+	agp_bridge.free_by_type = agp_generic_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = agp_generic_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return 0;
+	
+	(void) pdev; /* unused */
+}
+
+/**
+ * Setup -- Intel i845.
+ *
+ * Similar to intel_generic_setup().
+ */
+int __init intel_845_setup (struct pci_dev *pdev)
+{
+	agp_bridge.masks = intel_generic_masks;
+	agp_bridge.num_of_masks = 1;
+	agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
+	agp_bridge.size_type = U8_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 7;
+	agp_bridge.dev_private_data = NULL;
+	agp_bridge.needs_scratch_page = FALSE;
+	agp_bridge.configure = intel_845_configure;
+	agp_bridge.fetch_size = intel_8xx_fetch_size;
+	agp_bridge.cleanup = intel_8xx_cleanup;
+	agp_bridge.tlb_flush = intel_8xx_tlbflush;
+	agp_bridge.mask_memory = intel_mask_memory;
+	agp_bridge.agp_enable = agp_generic_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+	agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+	agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+	agp_bridge.insert_memory = agp_generic_insert_memory;
+	agp_bridge.remove_memory = agp_generic_remove_memory;
+	agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+	agp_bridge.free_by_type = agp_generic_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = intel_845_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return 0;
+	
+	(void) pdev; /* unused */
+}
+
+/**
+ * Setup -- Intel i850.
+ *
+ * Similar to intel_generic_setup().
+ */
+int __init intel_850_setup (struct pci_dev *pdev)
+{
+	agp_bridge.masks = intel_generic_masks;
+	agp_bridge.num_of_masks = 1;
+	agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
+	agp_bridge.size_type = U8_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 7;
+	agp_bridge.dev_private_data = NULL;
+	agp_bridge.needs_scratch_page = FALSE;
+	agp_bridge.configure = intel_850_configure;
+	agp_bridge.fetch_size = intel_8xx_fetch_size;
+	agp_bridge.cleanup = intel_8xx_cleanup;
+	agp_bridge.tlb_flush = intel_8xx_tlbflush;
+	agp_bridge.mask_memory = intel_mask_memory;
+	agp_bridge.agp_enable = agp_generic_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+	agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+	agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+	agp_bridge.insert_memory = agp_generic_insert_memory;
+	agp_bridge.remove_memory = agp_generic_remove_memory;
+	agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+	agp_bridge.free_by_type = agp_generic_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = agp_generic_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return 0;
+	
+	(void) pdev; /* unused */
+}
+
+/**
+ * Setup -- Intel i860.
+ *
+ * Similar to intel_generic_setup().
+ */
+int __init intel_860_setup (struct pci_dev *pdev)
+{
+	agp_bridge.masks = intel_generic_masks;
+	agp_bridge.num_of_masks = 1;
+	agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
+	agp_bridge.size_type = U8_APER_SIZE;
+	agp_bridge.num_aperture_sizes = 7;
+	agp_bridge.dev_private_data = NULL;
+	agp_bridge.needs_scratch_page = FALSE;
+	agp_bridge.configure = intel_860_configure;
+	agp_bridge.fetch_size = intel_8xx_fetch_size;
+	agp_bridge.cleanup = intel_8xx_cleanup;
+	agp_bridge.tlb_flush = intel_8xx_tlbflush;
+	agp_bridge.mask_memory = intel_mask_memory;
+	agp_bridge.agp_enable = agp_generic_agp_enable;
+	agp_bridge.cache_flush = global_cache_flush;
+	agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
+	agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
+	agp_bridge.insert_memory = agp_generic_insert_memory;
+	agp_bridge.remove_memory = agp_generic_remove_memory;
+	agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
+	agp_bridge.free_by_type = agp_generic_free_by_type;
+	agp_bridge.agp_alloc_page = agp_generic_alloc_page;
+	agp_bridge.agp_destroy_page = agp_generic_destroy_page;
+	agp_bridge.suspend = agp_generic_suspend;
+	agp_bridge.resume = agp_generic_resume;
+	agp_bridge.cant_use_aperture = 0;
+
+	return 0;
+
+	(void) pdev; /* unused */
+}
+

src/kernel/fbdev/radeonfb-2.5/NOTES

@@ -0,0 +1 @@
+This directory not really of interest to anybody...  Feel free to ignore.

src/kernel/fbdev/radeonfb/pci_ids.h

@@ -136,6 +136,7 @@
 #define PCI_DEVICE_ID_COMPAQ_TACHYON	0xa0fc
 #define PCI_DEVICE_ID_COMPAQ_SMART2P	0xae10
 #define PCI_DEVICE_ID_COMPAQ_NETEL100	0xae32
+#define PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE 0xae33
 #define PCI_DEVICE_ID_COMPAQ_NETEL10	0xae34
 #define PCI_DEVICE_ID_COMPAQ_NETFLEX3I	0xae35
 #define PCI_DEVICE_ID_COMPAQ_NETEL100D	0xae40
@@ -143,6 +144,7 @@
 #define PCI_DEVICE_ID_COMPAQ_NETEL100I	0xb011
 #define PCI_DEVICE_ID_COMPAQ_CISS	0xb060
 #define PCI_DEVICE_ID_COMPAQ_CISSB	0xb178
+#define PCI_DEVICE_ID_COMPAQ_CISSC 	0x0046
 #define PCI_DEVICE_ID_COMPAQ_THUNDER	0xf130
 #define PCI_DEVICE_ID_COMPAQ_NETFLEX3B	0xf150
 
@@ -172,6 +174,8 @@
 #define PCI_DEVICE_ID_LSI_FC929_LAN	0x0623
 #define PCI_DEVICE_ID_LSI_FC919		0x0624
 #define PCI_DEVICE_ID_LSI_FC919_LAN	0x0625
+#define PCI_DEVICE_ID_LSI_FC929X	0x0626
+#define PCI_DEVICE_ID_LSI_FC919X	0x0628
 #define PCI_DEVICE_ID_NCR_YELLOWFIN	0x0701
 #define PCI_DEVICE_ID_LSI_61C102	0x0901
 #define PCI_DEVICE_ID_LSI_63C815	0x1000
@@ -254,12 +258,9 @@
 #define PCI_DEVICE_ID_ATI_RAGE128_U1	0x5446
 #define PCI_DEVICE_ID_ATI_RAGE128_U2	0x544C
 #define PCI_DEVICE_ID_ATI_RAGE128_U3	0x5452
-/* Radeon M4 */
+/* Rage M4 */
 #define PCI_DEVICE_ID_ATI_RADEON_LE	0x4d45
 #define PCI_DEVICE_ID_ATI_RADEON_LF	0x4d46
-/* Radeon NV-100 */
-#define PCI_DEVICE_ID_ATI_RADEON_N1	0x5159
-#define PCI_DEVICE_ID_ATI_RADEON_N2	0x515a
 /* Radeon R100 */
 #define PCI_DEVICE_ID_ATI_RADEON_QD	0x5144
 #define PCI_DEVICE_ID_ATI_RADEON_QE	0x5145
@@ -274,6 +275,8 @@
 #define PCI_DEVICE_ID_ATI_RADEON_QO	0x514f
 #define PCI_DEVICE_ID_ATI_RADEON_Ql	0x516c
 #define PCI_DEVICE_ID_ATI_RADEON_BB	0x4242
+/* Radeon R200 (9100) */
+#define PCI_DEVICE_ID_ATI_RADEON_QM	0x514d
 /* Radeon RV200 (7500) */
 #define PCI_DEVICE_ID_ATI_RADEON_QW	0x5157
 #define PCI_DEVICE_ID_ATI_RADEON_QX	0x5158
@@ -282,11 +285,22 @@
 #define PCI_DEVICE_ID_ATI_RADEON_Ie	0x4965
 #define PCI_DEVICE_ID_ATI_RADEON_If	0x4966
 #define PCI_DEVICE_ID_ATI_RADEON_Ig	0x4967
+/* Radeon RV280 (9200) */
+#define PCI_DEVICE_ID_ATI_RADEON_Y_	0x5960
 /* Radeon R300 (9700) */
 #define PCI_DEVICE_ID_ATI_RADEON_ND	0x4e44
 #define PCI_DEVICE_ID_ATI_RADEON_NE	0x4e45
+#define PCI_DEVICE_ID_ATI_RADEON_AE	0x4145
+#define PCI_DEVICE_ID_ATI_RADEON_AF	0x4146
+/* Radeon R300 (9500) */
+#define PCI_DEVICE_ID_ATI_RADEON_AD	0x4144
+/* Radeon R350 (9800) */
+#define PCI_DEVICE_ID_ATI_RADEON_NH	0x4e48
+#define PCI_DEVICE_ID_ATI_RADEON_NI	0x4e49
+/* Radeon RV350 (9600) */
+#define PCI_DEVICE_ID_ATI_RADEON_AP	0x4150
+#define PCI_DEVICE_ID_ATI_RADEON_AR	0x4152
 #define PCI_DEVICE_ID_ATI_RADEON_NF	0x4e46
-#define PCI_DEVICE_ID_ATI_RADEON_NG	0x4e47
 /* Radeon M6 */
 #define PCI_DEVICE_ID_ATI_RADEON_LY	0x4c59
 #define PCI_DEVICE_ID_ATI_RADEON_LZ	0x4c5a
@@ -294,11 +308,14 @@
 #define PCI_DEVICE_ID_ATI_RADEON_LW	0x4c57
 #define PCI_DEVICE_ID_ATI_RADEON_LX	0x4c58
 /* Radeon M9 */
-#define PCI_DEVICE_ID_ATI_RADEON_Ld	0x4964
-#define PCI_DEVICE_ID_ATI_RADEON_Le	0x4965
-#define PCI_DEVICE_ID_ATI_RADEON_Lf	0x4966
-#define PCI_DEVICE_ID_ATI_RADEON_Lg	0x4967
-
+#define PCI_DEVICE_ID_ATI_RADEON_Ld	0x4c64
+#define PCI_DEVICE_ID_ATI_RADEON_Le	0x4c65
+#define PCI_DEVICE_ID_ATI_RADEON_Lf	0x4c66
+#define PCI_DEVICE_ID_ATI_RADEON_Lg	0x4c67
+/* Radeon P/M */
+#define PCI_DEVICE_ID_ATI_RADEON_LR	0x4c52
+/* RadeonIGP */
+#define PCI_DEVICE_ID_ATI_RADEON_IGP	0xCAB0
 
 #define PCI_VENDOR_ID_VLSI		0x1004
 #define PCI_DEVICE_ID_VLSI_82C592	0x0005
@@ -322,6 +339,12 @@
 #define PCI_DEVICE_ID_NS_87560_USB	0x0012
 #define PCI_DEVICE_ID_NS_83815		0x0020
 #define PCI_DEVICE_ID_NS_83820		0x0022
+#define PCI_DEVICE_ID_NS_SCx200_BRIDGE	0x0500
+#define PCI_DEVICE_ID_NS_SCx200_SMI	0x0501
+#define PCI_DEVICE_ID_NS_SCx200_IDE	0x0502
+#define PCI_DEVICE_ID_NS_SCx200_AUDIO	0x0503
+#define PCI_DEVICE_ID_NS_SCx200_VIDEO	0x0504
+#define PCI_DEVICE_ID_NS_SCx200_XBUS	0x0505
 #define PCI_DEVICE_ID_NS_87410		0xd001
 
 #define PCI_VENDOR_ID_TSENG		0x100c
@@ -381,9 +404,10 @@
 #define PCI_DEVICE_ID_IBM_MPIC		0x0046
 #define PCI_DEVICE_ID_IBM_3780IDSP	0x007d
 #define PCI_DEVICE_ID_IBM_CHUKAR	0x0096
+#define PCI_DEVICE_ID_IBM_CPC700	0x00f9
 #define PCI_DEVICE_ID_IBM_CPC710_PCI64	0x00fc
 #define PCI_DEVICE_ID_IBM_CPC710_PCI32	0x0105
-#define	PCI_DEVICE_ID_IBM_405GP		0x0156
+#define PCI_DEVICE_ID_IBM_405GP		0x0156
 #define PCI_DEVICE_ID_IBM_SERVERAIDI960	0x01bd
 #define PCI_DEVICE_ID_IBM_MPIC_2	0xffff
 
@@ -406,7 +430,7 @@
 #define PCI_DEVICE_ID_AMD_FE_GATE_7006	0x7006
 #define PCI_DEVICE_ID_AMD_FE_GATE_7007	0x7007
 #define PCI_DEVICE_ID_AMD_FE_GATE_700C	0x700C
-#define PCI_DEVIDE_ID_AMD_FE_GATE_700D	0x700D
+#define PCI_DEVICE_ID_AMD_FE_GATE_700D	0x700D
 #define PCI_DEVICE_ID_AMD_FE_GATE_700E	0x700E
 #define PCI_DEVICE_ID_AMD_FE_GATE_700F	0x700F
 #define PCI_DEVICE_ID_AMD_COBRA_7400	0x7400
@@ -421,13 +445,20 @@
 #define PCI_DEVICE_ID_AMD_VIPER_7411	0x7411
 #define PCI_DEVICE_ID_AMD_VIPER_7413	0x7413
 #define PCI_DEVICE_ID_AMD_VIPER_7414	0x7414
-#define PCI_DEVICE_ID_AMD_VIPER_7440	0x7440
-#define PCI_DEVICE_ID_AMD_VIPER_7441	0x7441
-#define PCI_DEVICE_ID_AMD_VIPER_7443	0x7443
-#define PCI_DEVICE_ID_AMD_VIPER_7448	0x7448
-#define PCI_DEVICE_ID_AMD_VIPER_7449	0x7449
+#define PCI_DEVICE_ID_AMD_OPUS_7440	0x7440
+#	define PCI_DEVICE_ID_AMD_VIPER_7440	PCI_DEVICE_ID_AMD_OPUS_7440
+#define PCI_DEVICE_ID_AMD_OPUS_7441	0x7441
+#	define PCI_DEVICE_ID_AMD_VIPER_7441	PCI_DEVICE_ID_AMD_OPUS_7441
+#define PCI_DEVICE_ID_AMD_OPUS_7443	0x7443
+#	define PCI_DEVICE_ID_AMD_VIPER_7443	PCI_DEVICE_ID_AMD_OPUS_7443
+#define PCI_DEVICE_ID_AMD_OPUS_7448	0x7448
+# define	PCI_DEVICE_ID_AMD_VIPER_7448	PCI_DEVICE_ID_AMD_OPUS_7448
+#define PCI_DEVICE_ID_AMD_OPUS_7449	0x7449
+#	define PCI_DEVICE_ID_AMD_VIPER_7449	PCI_DEVICE_ID_AMD_OPUS_7449
+#define PCI_DEVICE_ID_AMD_8111_LAN	0x7462
 #define PCI_DEVICE_ID_AMD_8111_IDE     0x7469
 #define PCI_DEVICE_ID_AMD_8111_AC97    0x746d
+#define PCI_DEVICE_ID_AMD_8131_APIC     0x7450
 
 #define PCI_VENDOR_ID_TRIDENT		0x1023
 #define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX	0x2000
@@ -511,20 +542,28 @@
 #define PCI_DEVICE_ID_SI_635		0x0635
 #define PCI_DEVICE_ID_SI_640		0x0640
 #define PCI_DEVICE_ID_SI_645		0x0645
-#define PCI_DEVICE_ID_SI_646        0x0646
+#define PCI_DEVICE_ID_SI_646		0x0646
+#define PCI_DEVICE_ID_SI_648		0x0648
 #define PCI_DEVICE_ID_SI_650		0x0650
+#define PCI_DEVICE_ID_SI_651		0x0651
+#define PCI_DEVICE_ID_SI_652		0x0652
 #define PCI_DEVICE_ID_SI_730		0x0730
 #define PCI_DEVICE_ID_SI_630_VGA	0x6300
 #define PCI_DEVICE_ID_SI_730_VGA	0x7300
 #define PCI_DEVICE_ID_SI_735		0x0735
 #define PCI_DEVICE_ID_SI_740		0x0740
 #define PCI_DEVICE_ID_SI_745		0x0745
+#define PCI_DEVICE_ID_SI_746		0x0746
+#define PCI_DEVICE_ID_SI_748		0x0748
 #define PCI_DEVICE_ID_SI_750		0x0750
+#define PCI_DEVICE_ID_SI_751		0x0751
+#define PCI_DEVICE_ID_SI_752		0x0752
 #define PCI_DEVICE_ID_SI_900		0x0900
 #define PCI_DEVICE_ID_SI_5107		0x5107
 #define PCI_DEVICE_ID_SI_5300		0x5300
 #define PCI_DEVICE_ID_SI_5511		0x5511
 #define PCI_DEVICE_ID_SI_5513		0x5513
+#define PCI_DEVICE_ID_SI_5518		0x5518
 #define PCI_DEVICE_ID_SI_5571		0x5571
 #define PCI_DEVICE_ID_SI_5591		0x5591
 #define PCI_DEVICE_ID_SI_5597		0x5597
@@ -609,6 +648,7 @@
 #define PCI_DEVICE_ID_TI_4410		0xac41
 #define PCI_DEVICE_ID_TI_4451		0xac42
 #define PCI_DEVICE_ID_TI_1420		0xac51
+#define PCI_DEVICE_ID_TI_1510		0xac56
 
 #define PCI_VENDOR_ID_SONY		0x104d
 #define PCI_DEVICE_ID_SONY_CXD3222	0x8039
@@ -702,6 +742,10 @@
 #define PCI_DEVICE_ID_APPLE_UNI_N_AGP_P	0x0027
 #define PCI_DEVICE_ID_APPLE_UNI_N_AGP15	0x002d
 #define PCI_DEVICE_ID_APPLE_UNI_N_FW2	0x0030
+#define PCI_DEVICE_ID_APPLE_UNI_N_GMAC2	0x0032
+#define PCI_DEVICE_ID_APPLE_UNI_N_AGP2	0x0034
+#define PCI_DEVICE_ID_APPLE_KEYLARGO_I	0x003e
+#define PCI_DEVICE_ID_APPLE_TIGON3	0x1645
 
 #define PCI_VENDOR_ID_YAMAHA		0x1073
 #define PCI_DEVICE_ID_YAMAHA_724	0x0004
@@ -774,7 +818,9 @@
 #define PCI_DEVICE_ID_CMD_648		0x0648
 #define PCI_DEVICE_ID_CMD_649		0x0649
 #define PCI_DEVICE_ID_CMD_670		0x0670
-#define PCI_DEVICE_ID_CMD_680		0x0680
+
+#define PCI_DEVICE_ID_SII_680		0x0680
+#define PCI_DEVICE_ID_SII_3112		0x3112
 
 #define PCI_VENDOR_ID_VISION		0x1098
 #define PCI_DEVICE_ID_VISION_QD8500	0x0001
@@ -835,6 +881,14 @@
 #define PCI_DEVICE_ID_3COM_3C905TX	0x9050
 #define PCI_DEVICE_ID_3COM_3C905T4	0x9051
 #define PCI_DEVICE_ID_3COM_3C905B_TX	0x9055
+#define PCI_DEVICE_ID_3COM_3CR990	0x9900
+#define PCI_DEVICE_ID_3COM_3CR990_TX_95	0x9902
+#define PCI_DEVICE_ID_3COM_3CR990_TX_97	0x9903
+#define PCI_DEVICE_ID_3COM_3CR990B	0x9904
+#define PCI_DEVICE_ID_3COM_3CR990_FX	0x9905
+#define PCI_DEVICE_ID_3COM_3CR990SVR95	0x9908
+#define PCI_DEVICE_ID_3COM_3CR990SVR97	0x9909
+#define PCI_DEVICE_ID_3COM_3CR990SVR	0x990a
 
 #define PCI_VENDOR_ID_SMC		0x10b8
 #define PCI_DEVICE_ID_SMC_EPIC100	0x0005
@@ -900,29 +954,46 @@
 #define PCI_DEVICE_ID_CERN_HIPPI_DST	0x0021
 #define PCI_DEVICE_ID_CERN_HIPPI_SRC	0x0022
 
-#define PCI_VENDOR_ID_NVIDIA			0x10de
-#define PCI_DEVICE_ID_NVIDIA_TNT		0x0020
-#define PCI_DEVICE_ID_NVIDIA_TNT2		0x0028
-#define PCI_DEVICE_ID_NVIDIA_UTNT2		0x0029
-#define PCI_DEVICE_ID_NVIDIA_VTNT2		0x002C
-#define PCI_DEVICE_ID_NVIDIA_UVTNT2		0x002D
-#define PCI_DEVICE_ID_NVIDIA_ITNT2		0x00A0
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR	0x0100
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR	0x0101
-#define PCI_DEVICE_ID_NVIDIA_QUADRO		0x0103
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX	0x0110
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2	0x0111
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO	0x0112
-#define PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR	0x0113
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS	0x0150
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2	0x0151
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA	0x0152
-#define PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO	0x0153
-#define PCI_DEVICE_ID_NVIDIA_IGEFORCE2		0x01a0
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE3		0x0200
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE3_1		0x0201
-#define PCI_DEVICE_ID_NVIDIA_GEFORCE3_2		0x0202
-#define PCI_DEVICE_ID_NVIDIA_QUADRO_DDC		0x0203
+#define PCI_VENDOR_ID_NVIDIA				0x10de
+#define PCI_DEVICE_ID_NVIDIA_TNT			0x0020
+#define PCI_DEVICE_ID_NVIDIA_TNT2			0x0028
+#define PCI_DEVICE_ID_NVIDIA_UTNT2			0x0029
+#define PCI_DEVICE_ID_NVIDIA_VTNT2			0x002C
+#define PCI_DEVICE_ID_NVIDIA_UVTNT2			0x002D
+#define PCI_DEVICE_ID_NVIDIA_ITNT2			0x00A0
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR		0x0100
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR		0x0101
+#define PCI_DEVICE_ID_NVIDIA_QUADRO			0x0103
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX		0x0110
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2		0x0111
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO		0x0112
+#define PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR		0x0113
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS		0x0150
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2		0x0151
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA		0x0152
+#define PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO		0x0153
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460 		0x0170
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440 		0x0171
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420 		0x0172
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO		0x0174
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO		0x0175
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32	0x0176
+#define PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL		0x0178
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64	0x0179
+#define PCI_DEVICE_ID_NVIDIA_QUADRO4_200		0x017A
+#define PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL		0x017B
+#define PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL		0x017C
+#define PCI_DEVICE_ID_NVIDIA_IGEFORCE2			0x01a0
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE3			0x0200
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE3_1			0x0201
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE3_2			0x0202
+#define PCI_DEVICE_ID_NVIDIA_QUADRO_DDC			0x0203
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600		0x0250
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400		0x0251
+#define PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200		0x0253
+#define PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL		0x0258
+#define PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL		0x0259
+#define PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL		0x025B
 
 #define PCI_VENDOR_ID_IMS		0x10e0
 #define PCI_DEVICE_ID_IMS_8849		0x8849
@@ -1020,6 +1091,10 @@
 #define PCI_DEVICE_ID_VIA_8233C_0	0x3109
 #define PCI_DEVICE_ID_VIA_8361		0x3112
 #define PCI_DEVICE_ID_VIA_8233A		0x3147
+#define PCI_DEVICE_ID_VIA_P4X333   0x3168
+#define PCI_DEVICE_ID_VIA_8235        0x3177
+#define PCI_DEVICE_ID_VIA_8377_0  0x3189
+#define PCI_DEVICE_ID_VIA_8377_0	0x3189
 #define PCI_DEVICE_ID_VIA_86C100A	0x6100
 #define PCI_DEVICE_ID_VIA_8231		0x8231
 #define PCI_DEVICE_ID_VIA_8231_4	0x8235
@@ -1117,6 +1192,7 @@
 #define PCI_DEVICE_ID_SYSKONNECT_FP	0x4000
 #define PCI_DEVICE_ID_SYSKONNECT_TR	0x4200
 #define PCI_DEVICE_ID_SYSKONNECT_GE	0x4300
+#define PCI_DEVICE_ID_SYSKONNECT_YU	0x4320
 
 #define PCI_VENDOR_ID_VMIC		0x114a
 #define PCI_DEVICE_ID_VMIC_VME		0x7587
@@ -1158,6 +1234,7 @@
 #define PCI_DEVICE_ID_SERVERWORKS_OSB4IDE 0x0211
 #define PCI_DEVICE_ID_SERVERWORKS_CSB5IDE 0x0212
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6IDE 0x0213
+#define PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2 0x0217
 #define PCI_DEVICE_ID_SERVERWORKS_OSB4USB 0x0220
 #define PCI_DEVICE_ID_SERVERWORKS_CSB5USB PCI_DEVICE_ID_SERVERWORKS_OSB4USB
 #define PCI_DEVICE_ID_SERVERWORKS_CSB6USB 0x0221
@@ -1578,6 +1655,9 @@
 #define PCI_DEVICE_ID_TIGON3_5702FE	0x164d
 #define PCI_DEVICE_ID_TIGON3_5702X	0x16a6
 #define PCI_DEVICE_ID_TIGON3_5703X	0x16a7
+#define PCI_DEVICE_ID_TIGON3_5704S	0x16a8
+#define PCI_DEVICE_ID_TIGON3_5702A3	0x16c6
+#define PCI_DEVICE_ID_TIGON3_5703A3	0x16c7
 
 #define PCI_VENDOR_ID_SYBA		0x1592
 #define PCI_DEVICE_ID_SYBA_2P_EPP	0x0782
@@ -1590,7 +1670,7 @@
 #define PCI_DEVICE_ID_ZOLTRIX_2BD0	0x2bd0 
 
 #define PCI_VENDOR_ID_PDC		0x15e9
-#define PCI_DEVICE_ID_PDC_1841		0x1841
+#define PCI_DEVICE_ID_PDC_ADMA100  0x1841
 
 #define PCI_VENDOR_ID_ALTIMA		0x173b
 #define PCI_DEVICE_ID_ALTIMA_AC1000	0x03e8
@@ -1602,6 +1682,9 @@
 #define PCI_VENDOR_ID_TEKRAM		0x1de1
 #define PCI_DEVICE_ID_TEKRAM_DC290	0xdc29
 
+#define PCI_VENDOR_ID_HINT		0x3388
+#define PCI_DEVICE_ID_HINT_VXPROII_IDE	0x8013
+
 #define PCI_VENDOR_ID_3DLABS		0x3d3d
 #define PCI_DEVICE_ID_3DLABS_300SX	0x0001
 #define PCI_DEVICE_ID_3DLABS_500TX	0x0002
@@ -1663,7 +1746,11 @@
 #define PCI_DEVICE_ID_INTEL_82430	0x0486
 #define PCI_DEVICE_ID_INTEL_82434	0x04a3
 #define PCI_DEVICE_ID_INTEL_I960	0x0960
+#define PCI_DEVICE_ID_INTEL_I960RM	0x0962
 #define PCI_DEVICE_ID_INTEL_82562ET	0x1031
+
+#define PCI_DEVICE_ID_INTEL_82815_MC	0x1130
+
 #define PCI_DEVICE_ID_INTEL_82559ER	0x1209
 #define PCI_DEVICE_ID_INTEL_82092AA_0	0x1221
 #define PCI_DEVICE_ID_INTEL_82092AA_1	0x1222
@@ -1719,9 +1806,9 @@
 #define PCI_DEVICE_ID_INTEL_82801E_2	0x2452
 #define PCI_DEVICE_ID_INTEL_82801E_3	0x2453
 #define PCI_DEVICE_ID_INTEL_82801E_9	0x2459
-#define PCI_DEVICE_ID_INTEL_82801E_11	0x245b
-#define PCI_DEVICE_ID_INTEL_82801E_13	0x245d
-#define PCI_DEVICE_ID_INTEL_82801E_14	0x245e
+#define PCI_DEVICE_ID_INTEL_82801E_11	0x245B
+#define PCI_DEVICE_ID_INTEL_82801E_14	0x245D
+#define PCI_DEVICE_ID_INTEL_82801E_15	0x245E
 #define PCI_DEVICE_ID_INTEL_82801CA_0	0x2480
 #define PCI_DEVICE_ID_INTEL_82801CA_2	0x2482
 #define PCI_DEVICE_ID_INTEL_82801CA_3	0x2483
@@ -1741,6 +1828,16 @@
 #define PCI_DEVICE_ID_INTEL_82801DB_7	0x24c7
 #define PCI_DEVICE_ID_INTEL_82801DB_11	0x24cb
 #define PCI_DEVICE_ID_INTEL_82801DB_13	0x24cd
+#define PCI_DEVICE_ID_INTEL_82801EB_0  0x24d0
+#define PCI_DEVICE_ID_INTEL_82801EB_2  0x24d2
+#define PCI_DEVICE_ID_INTEL_82801EB_3  0x24d3
+#define PCI_DEVICE_ID_INTEL_82801EB_4  0x24d4
+#define PCI_DEVICE_ID_INTEL_82801EB_5  0x24d5
+#define PCI_DEVICE_ID_INTEL_82801EB_6  0x24d6
+#define PCI_DEVICE_ID_INTEL_82801EB_7  0x24d7
+#define PCI_DEVICE_ID_INTEL_82801DB_10 0x24ca
+#define PCI_DEVICE_ID_INTEL_82801EB_11 0x24db
+#define PCI_DEVICE_ID_INTEL_82801EB_13 0x24dd
 #define PCI_DEVICE_ID_INTEL_80310	0x530d
 #define PCI_DEVICE_ID_INTEL_82810_MC1	0x7120
 #define PCI_DEVICE_ID_INTEL_82810_IG1	0x7121
@@ -1762,6 +1859,7 @@
 #define PCI_DEVICE_ID_INTEL_82454GX	0x84c4
 #define PCI_DEVICE_ID_INTEL_82450GX	0x84c5
 #define PCI_DEVICE_ID_INTEL_82451NX	0x84ca
+#define PCI_DEVICE_ID_INTEL_82454NX	0x84cb
 
 #define PCI_VENDOR_ID_COMPUTONE		0x8e0e
 #define PCI_DEVICE_ID_COMPUTONE_IP2EX	0x0291

src/kernel/fbdev/radeonfb/radeonfb.h

@@ -8,8 +8,8 @@
 #define ATY_RADEON_CRT_ON	0x00000002
 
 
-#define FBIO_RADEON_GET_MIRROR	_IOR('@', 3, sizeof(__u32*))
-#define FBIO_RADEON_SET_MIRROR	_IOW('@', 4, sizeof(__u32*))
+#define FBIO_RADEON_GET_MIRROR	_IOR('@', 3, __u32)
+#define FBIO_RADEON_SET_MIRROR	_IOW('@', 4, __u32)
 
 #endif
 

src/mesa/drivers/dri/mga/Makefile

@@ -0,0 +1,125 @@
+# $Id: Makefile,v 1.1.2.2 2003/04/26 21:17:43 keithw Exp $
+
+# Mesa 3-D graphics library
+# Version:  5.0
+# Copyright (C) 1995-2002  Brian Paul
+
+
+
+MESA = ../../..
+default: mga_dri.so 
+include $(MESA)/Makefile.include
+
+
+SHARED_INCLUDES= -I$(MESABUILDDIR) -I$(MESA)/include -I. -I../common -Iserver
+MINIGLX_INCLUDES = -I$(MESABUILDDIR)/miniglx 
+DRI_INCLUDES = -I$(MESABUILDDIR)/dri
+
+ifeq ($(FULL_DRIVER),true)
+DEFINES = \
+	-D_HAVE_SWRAST=1 \
+	-D_HAVE_SWTNL=1 \
+	-D_HAVE_SANITY=1 \
+	-D_HAVE_CODEGEN=1 \
+	-D_HAVE_LIGHTING=1 \
+	-D_HAVE_TEXGEN=1 \
+	-D_HAVE_USERCLIP=1 \
+	-D_HAVE_FULL_GL=1
+else
+DEFINES = \
+	-D_HAVE_SWRAST=0 \
+	-D_HAVE_SWTNL=0 \
+	-D_HAVE_SANITY=0 \
+	-D_HAVE_CODEGEN=0 \
+	-D_HAVE_LIGHTING=0 \
+	-D_HAVE_TEXGEN=0 \
+	-D_HAVE_USERCLIP=0 \
+	-D_HAVE_FULL_GL=0
+endif
+
+# The .a files for each mesa module required by this driver:
+#
+FULL_MESA = 	$(MESABUILDDIR)/swrast_setup/swrast_setup.a \
+		$(MESABUILDDIR)/tnl/tnl.a \
+		$(MESABUILDDIR)/math/math.a \
+		$(MESABUILDDIR)/array_cache/array_cache.a \
+		$(MESABUILDDIR)/swrast/swrast.a \
+		$(MESABUILDDIR)/mesa.a \
+		$(MESABUILDDIR)/math/math.a #kludge
+
+SUBSET_MESA = 	$(MESABUILDDIR)/mesa.a \
+		$(MESABUILDDIR)/math/math.a
+
+
+
+MINIGLX_SOURCES = server/mga_dri.c 
+
+DRIVER_SOURCES = mgabuffers.c \
+		 mgadd.c \
+		 mgaioctl.c \
+		 mgarender.c \
+		 mgastate.c \
+		 mgatris.c \
+		 ../common/mm.c 
+
+SUBSET_DRIVER_SOURCES = \
+		radeon_subset_bitmap.c \
+		radeon_subset_readpix.c \
+		radeon_subset_select.c \
+		radeon_subset_tex.c \
+		radeon_subset_vtx.c 
+
+FULL_DRIVER_SOURCES = 	\
+		 mgapixel.c \
+		 mgaspan.c \
+		 mgatex.c \
+		 mgatexcnv.c \
+		 mgatexmem.c \
+		 mgavb.c \
+		 mga_xmesa.c
+
+
+INCLUDES = $(MINIGLX_INCLUDES) \
+	   $(SHARED_INCLUDES)
+
+
+ifeq ($(FULL_DRIVER),true)
+C_SOURCES = $(MINIGLX_SOURCES) \
+	    $(FULL_DRIVER_SOURCES) \
+	    $(DRIVER_SOURCES) 
+MESA_MODULES = $(FULL_MESA)
+else
+C_SOURCES = $(MINIGLX_SOURCES) \
+	    $(SUBSET_DRIVER_SOURCES) \
+	    $(DRIVER_SOURCES) 
+MESA_MODULES = $(SUBSET_MESA)
+endif
+
+
+ifeq ($(WINDOW_SYSTEM),dri)
+WINOBJ=$(MESABUILDDIR)/dri/dri.a
+WINLIB=
+else
+WINOBJ=
+WINLIB=-L$(MESA)/src/miniglx
+endif
+
+ASM_SOURCES = 
+OBJECTS = $(C_SOURCES:.c=.o) \
+	  $(ASM_SOURCES:.S=.o) 
+
+
+
+##### TARGETS #####
+
+
+# Build the subset or full driver?
+#
+mga_dri.so:  $(OBJECTS) $(MESA_MODULES) $(WINOBJ) Makefile
+	rm -f $@ && gcc -o $@ -shared $(OBJECTS) $(MESA_MODULES) $(WINOBJ) $(WINLIB) -lGL -lc -lm
+	rm -f $(MESA)/lib/mga_dri.so && \
+	install mga_dri.so $(MESA)/lib/mga_dri.so
+
+##### DEPENDENCIES #####
+
+-include $(C_SOURCES:.c=.d)

src/mesa/drivers/dri/mga/README

@@ -0,0 +1,26 @@
+MGA DRI driver ported from XF86DRI to FBDRI
+by Denis Oliver Kropp <dok@directfb.org>
+
+
+INFO
+
+This driver has been ported from the head branch of XFree86 to
+the embedded-1-branch of Mesa.
+
+
+STATUS
+
+Already working very well as far as I've tested it (16/32 bit).
+glxgears runs at 935 fps (G550 32MB AGP 4x, Athlon 1.33) vs 744 fps with XFree.
+Other demos (terrain, fire, etc.) have been successfully tested as well.
+
+
+TODO
+
+- mgaEngineShutdown
+- mgaEngineRestore
+- SGRAM detection
+- remove some unused bits from server/*
+- subset driver support
+- mgaWaitForVBlank
+- deinitialization (from MGADRICloseScreen) a la radeonDestroyScreen

src/mesa/drivers/dri/mga/mga_xmesa.c

@@ -0,0 +1,616 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mga_xmesa.c,v 1.19 2003/03/26 20:43:49 tsi Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include <stdio.h>
+
+#include "mga_common.h"
+#include "mga_xmesa.h"
+#include "context.h"
+#include "matrix.h"
+#include "mmath.h"
+#include "simple_list.h"
+//#include "mem.h"
+
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/tnl.h"
+#include "array_cache/acache.h"
+
+#include "tnl/t_pipeline.h"
+
+#include "mgadd.h"
+#include "mgastate.h"
+#include "mgatex.h"
+#include "mgaspan.h"
+#include "mgaioctl.h"
+#include "mgatris.h"
+#include "mgavb.h"
+#include "mgabuffers.h"
+#include "mgapixel.h"
+
+#include "mga_xmesa.h"
+
+#include "mga_dri.h"
+
+
+#ifndef MGA_DEBUG
+int MGA_DEBUG = (0
+/*		 | DEBUG_ALWAYS_SYNC */
+/*		 | DEBUG_VERBOSE_MSG */
+/*		 | DEBUG_VERBOSE_LRU */
+/*		 | DEBUG_VERBOSE_DRI */
+/*		 | DEBUG_VERBOSE_IOCTL */
+/*		 | DEBUG_VERBOSE_2D */
+/*		 | DEBUG_VERBOSE_FALLBACK */
+   );
+#endif
+
+
+static GLboolean
+mgaInitDriver(__DRIscreenPrivate *sPriv)
+{
+   mgaScreenPrivate *mgaScreen;
+   MGADRIPtr         serverInfo = (MGADRIPtr)sPriv->pDevPriv;
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_DRI)
+      fprintf(stderr, "mgaInitDriver\n");
+
+   /* Check that the DRM driver version is compatible */
+   if (sPriv->drmMajor != 3 ||
+       sPriv->drmMinor < 0) {
+      __driUtilMessage("MGA DRI driver expected DRM driver version 3.0.x but got version %d.%d.%d", sPriv->drmMajor, sPriv->drmMinor, sPriv->drmPatch);
+      return GL_FALSE;
+   }
+
+
+   /* Allocate the private area */
+   mgaScreen = (mgaScreenPrivate *)MALLOC(sizeof(mgaScreenPrivate));
+   if (!mgaScreen) {
+      __driUtilMessage("Couldn't malloc screen struct");
+      return GL_FALSE;
+   }
+
+   mgaScreen->sPriv = sPriv;
+   sPriv->private = (void *)mgaScreen;
+
+   if (sPriv->drmMinor >= 1) {
+      int ret;
+      drmMGAGetParam gp;
+
+      gp.param = MGA_PARAM_IRQ_NR;
+      gp.value = (int *) &mgaScreen->irq;
+
+      ret = drmCommandWriteRead( sPriv->fd, DRM_MGA_GETPARAM,
+				    &gp, sizeof(gp));
+      if (ret) {
+	    fprintf(stderr, "drmMgaGetParam (MGA_PARAM_IRQ_NR): %d\n", ret);
+	    XFree(mgaScreen);
+	    sPriv->private = NULL;
+	    return GL_FALSE;
+      }
+   }
+   
+   if (serverInfo->chipset != MGA_CARD_TYPE_G200 &&
+       serverInfo->chipset != MGA_CARD_TYPE_G400) {
+      XFree(mgaScreen);
+      sPriv->private = NULL;
+      __driUtilMessage("Unrecognized chipset");
+      return GL_FALSE;
+   }
+
+
+   mgaScreen->chipset = serverInfo->chipset;
+   mgaScreen->width = serverInfo->width;
+   mgaScreen->height = serverInfo->height;
+   mgaScreen->mem = serverInfo->mem;
+   mgaScreen->cpp = serverInfo->cpp;
+
+   mgaScreen->agpMode = serverInfo->agpMode;
+
+   mgaScreen->frontPitch = serverInfo->frontPitch;
+   mgaScreen->frontOffset = serverInfo->frontOffset;
+   mgaScreen->backOffset = serverInfo->backOffset;
+   mgaScreen->backPitch  =  serverInfo->backPitch;
+   mgaScreen->depthOffset = serverInfo->depthOffset;
+   mgaScreen->depthPitch  =  serverInfo->depthPitch;
+
+   mgaScreen->mmio.handle = serverInfo->registers.handle;
+   mgaScreen->mmio.size = serverInfo->registers.size;
+   if ( drmMap( sPriv->fd,
+		mgaScreen->mmio.handle, mgaScreen->mmio.size,
+		&mgaScreen->mmio.map ) < 0 ) {
+      FREE( mgaScreen );
+      sPriv->private = NULL;
+      __driUtilMessage( "Couldn't map MMIO registers" );
+      return GL_FALSE;
+   }
+
+   mgaScreen->primary.handle = serverInfo->primary.handle;
+   mgaScreen->primary.size = serverInfo->primary.size;
+   mgaScreen->buffers.handle = serverInfo->buffers.handle;
+   mgaScreen->buffers.size = serverInfo->buffers.size;
+
+#if 0
+   mgaScreen->agp.handle = serverInfo->agp;
+   mgaScreen->agp.size = serverInfo->agpSize;
+
+   if (drmMap(sPriv->fd,
+	      mgaScreen->agp.handle,
+	      mgaScreen->agp.size,
+	      (drmAddress *)&mgaScreen->agp.map) != 0)
+   {
+      Xfree(mgaScreen);
+      sPriv->private = NULL;
+      __driUtilMessage("Couldn't map agp region");
+      return GL_FALSE;
+   }
+#endif
+
+   mgaScreen->textureOffset[MGA_CARD_HEAP] = serverInfo->textureOffset;
+   mgaScreen->textureOffset[MGA_AGP_HEAP] = (serverInfo->agpTextureOffset |
+					     PDEA_pagpxfer_enable | 1);
+
+   mgaScreen->textureSize[MGA_CARD_HEAP] = serverInfo->textureSize;
+   mgaScreen->textureSize[MGA_AGP_HEAP] = serverInfo->agpTextureSize;
+
+   mgaScreen->logTextureGranularity[MGA_CARD_HEAP] =
+      serverInfo->logTextureGranularity;
+   mgaScreen->logTextureGranularity[MGA_AGP_HEAP] =
+      serverInfo->logAgpTextureGranularity;
+
+   mgaScreen->texVirtual[MGA_CARD_HEAP] = (char *)(mgaScreen->sPriv->pFB +
+					   serverInfo->textureOffset);
+   if (drmMap(sPriv->fd,
+              serverInfo->agpTextureOffset,
+              serverInfo->agpTextureSize,
+              (drmAddress *)&mgaScreen->texVirtual[MGA_AGP_HEAP]) != 0)
+   {
+      free(mgaScreen);
+      sPriv->private = NULL;
+      __driUtilMessage("Couldn't map agptexture region");
+      return GL_FALSE;
+   }
+
+#if 0
+   mgaScreen->texVirtual[MGA_AGP_HEAP] = (mgaScreen->agp.map +
+					  serverInfo->agpTextureOffset);
+#endif
+
+   mgaScreen->mAccess = serverInfo->mAccess;
+
+   /* For calculating setupdma addresses.
+    */
+   mgaScreen->dmaOffset = serverInfo->buffers.handle;
+
+   mgaScreen->bufs = drmMapBufs(sPriv->fd);
+   if (!mgaScreen->bufs) {
+      /*drmUnmap(mgaScreen->agp_tex.map, mgaScreen->agp_tex.size);*/
+      XFree(mgaScreen);
+      sPriv->private = NULL;
+      __driUtilMessage("Couldn't map dma buffers");
+      return GL_FALSE;
+   }
+   mgaScreen->sarea_priv_offset = serverInfo->sarea_priv_offset;
+
+   return GL_TRUE;
+}
+
+
+static void
+mgaDestroyScreen(__DRIscreenPrivate *sPriv)
+{
+   mgaScreenPrivate *mgaScreen = (mgaScreenPrivate *) sPriv->private;
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_DRI)
+      fprintf(stderr, "mgaDestroyScreen\n");
+
+   /*drmUnmap(mgaScreen->agp_tex.map, mgaScreen->agp_tex.size);*/
+   free(mgaScreen);
+   sPriv->private = NULL;
+}
+
+
+extern const struct gl_pipeline_stage _mga_render_stage;
+
+static const struct gl_pipeline_stage *mga_pipeline[] = {
+   &_tnl_vertex_transform_stage, 
+   &_tnl_normal_transform_stage, 
+   &_tnl_lighting_stage,	
+   &_tnl_fog_coordinate_stage,
+   &_tnl_texgen_stage, 
+   &_tnl_texture_transform_stage, 
+				/* REMOVE: point attenuation stage */
+#if 0
+   &_mga_render_stage,		/* ADD: unclipped rastersetup-to-dma */
+                                /* Need new ioctl for wacceptseq */
+#endif
+   &_tnl_render_stage,		
+   0,
+};
+
+
+static GLboolean
+mgaCreateContext( const __GLcontextModes *mesaVis,
+                  __DRIcontextPrivate *driContextPriv,
+                  void *sharedContextPrivate )
+{
+   int i;
+   GLcontext *ctx, *shareCtx;
+   mgaContextPtr mmesa;
+   __DRIscreenPrivate *sPriv = driContextPriv->driScreenPriv;
+   mgaScreenPrivate *mgaScreen = (mgaScreenPrivate *)sPriv->private;
+   MGASAREAPrivPtr saPriv=(MGASAREAPrivPtr)(((char*)sPriv->pSAREA)+
+					      mgaScreen->sarea_priv_offset);
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_DRI)
+      fprintf(stderr, "mgaCreateContext\n");
+
+   /* allocate mga context */
+   mmesa = (mgaContextPtr) CALLOC(sizeof(mgaContext));
+   if (!mmesa) {
+      return GL_FALSE;
+   }
+
+   /* Allocate the Mesa context */
+   if (sharedContextPrivate)
+      shareCtx = ((mgaContextPtr) sharedContextPrivate)->glCtx;
+   else 
+      shareCtx = NULL;
+   mmesa->glCtx = _mesa_create_context(mesaVis, shareCtx, mmesa, GL_TRUE);
+   if (!mmesa->glCtx) {
+      FREE(mmesa);
+      return GL_FALSE;
+   }
+   driContextPriv->driverPrivate = mmesa;
+
+   /* Init mga state */
+   mmesa->hHWContext = driContextPriv->hHWContext;
+   mmesa->driFd = sPriv->fd;
+   mmesa->driHwLock = &sPriv->pSAREA->lock;
+
+   mmesa->mgaScreen = mgaScreen;
+   mmesa->driScreen = sPriv;
+   mmesa->sarea = (void *)saPriv;
+   mmesa->glBuffer = NULL;
+
+   make_empty_list(&mmesa->SwappedOut);
+
+   mmesa->lastTexHeap = mgaScreen->texVirtual[MGA_AGP_HEAP] ? 2 : 1;
+
+   for (i = 0 ; i < mmesa->lastTexHeap ; i++) {
+      mmesa->texHeap[i] = mmInit( 0, mgaScreen->textureSize[i]);
+      make_empty_list(&mmesa->TexObjList[i]);
+   }
+
+   /* Set the maximum texture size small enough that we can guarentee
+    * that both texture units can bind a maximal texture and have them
+    * on the card at once.
+    */
+   ctx = mmesa->glCtx;
+   { 
+      int nr = 2;
+
+      if (mgaScreen->chipset == MGA_CARD_TYPE_G200)
+	 nr = 1;
+
+      if (mgaScreen->textureSize[0] < nr*1024*1024) {
+	 ctx->Const.MaxTextureLevels = 9;
+      } else if (mgaScreen->textureSize[0] < nr*4*1024*1024) {
+	 ctx->Const.MaxTextureLevels = 10;
+      } else {
+	 ctx->Const.MaxTextureLevels = 11;
+      }
+
+      ctx->Const.MaxTextureUnits = nr;
+   }
+
+   ctx->Const.MinLineWidth = 1.0;
+   ctx->Const.MinLineWidthAA = 1.0;
+   ctx->Const.MaxLineWidth = 10.0;
+   ctx->Const.MaxLineWidthAA = 10.0;
+   ctx->Const.LineWidthGranularity = 1.0;
+
+   mmesa->hw_stencil = mesaVis->stencilBits && mesaVis->depthBits == 24;
+
+   switch (mesaVis->depthBits) {
+   case 16: 
+      mmesa->depth_scale = 1.0/(GLdouble)0xffff; 
+      mmesa->depth_clear_mask = ~0;
+      mmesa->ClearDepth = 0xffff;
+      break;
+   case 24:
+      mmesa->depth_scale = 1.0/(GLdouble)0xffffff;
+      if (mmesa->hw_stencil) {
+	 mmesa->depth_clear_mask = 0xffffff00;
+	 mmesa->stencil_clear_mask = 0x000000ff;
+      } else
+	 mmesa->depth_clear_mask = ~0;
+      mmesa->ClearDepth = 0xffffff00;
+      break;
+   case 32:
+      mmesa->depth_scale = 1.0/(GLdouble)0xffffffff;
+      mmesa->depth_clear_mask = ~0;
+      mmesa->ClearDepth = 0xffffffff;
+      break;
+   };
+
+   mmesa->haveHwStipple = GL_FALSE;
+   mmesa->RenderIndex = -1;		/* impossible value */
+   mmesa->new_state = ~0;
+   mmesa->dirty = ~0;
+   mmesa->vertex_format = 0;   
+   mmesa->CurrentTexObj[0] = 0;
+   mmesa->CurrentTexObj[1] = 0;
+   mmesa->tmu_source[0] = 0;
+   mmesa->tmu_source[1] = 1;
+
+   mmesa->texAge[0] = 0;
+   mmesa->texAge[1] = 0;
+   
+   /* Initialize the software rasterizer and helper modules.
+    */
+   _swrast_CreateContext( ctx );
+   _ac_CreateContext( ctx );
+   _tnl_CreateContext( ctx );
+   
+   _swsetup_CreateContext( ctx );
+
+   /* Install the customized pipeline:
+    */
+   _tnl_destroy_pipeline( ctx );
+   _tnl_install_pipeline( ctx, mga_pipeline );
+
+   /* Configure swrast to match hardware characteristics:
+    */
+   _swrast_allow_pixel_fog( ctx, GL_FALSE );
+   _swrast_allow_vertex_fog( ctx, GL_TRUE );
+
+   mmesa->primary_offset = mmesa->mgaScreen->primary.handle;
+
+   ctx->DriverCtx = (void *) mmesa;
+   mmesa->glCtx = ctx;
+
+   mgaDDExtensionsInit( ctx );
+
+   mgaDDInitStateFuncs( ctx );
+   mgaDDInitTextureFuncs( ctx );
+   mgaDDInitSpanFuncs( ctx );
+   mgaDDInitDriverFuncs( ctx );
+   mgaDDInitIoctlFuncs( ctx );
+   mgaDDInitPixelFuncs( ctx );
+   mgaDDInitTriFuncs( ctx );
+
+   mgaInitVB( ctx );
+   mgaInitState( mmesa );
+
+   driContextPriv->driverPrivate = (void *) mmesa;
+
+   return GL_TRUE;
+}
+
+static void
+mgaDestroyContext(__DRIcontextPrivate *driContextPriv)
+{
+   mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate;
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_DRI)
+      fprintf(stderr, "mgaDestroyContext\n");
+
+   assert(mmesa); /* should never be null */
+   if (mmesa) {
+      _swsetup_DestroyContext( mmesa->glCtx );
+      _tnl_DestroyContext( mmesa->glCtx );
+      _ac_DestroyContext( mmesa->glCtx );
+      _swrast_DestroyContext( mmesa->glCtx );
+
+      mgaFreeVB( mmesa->glCtx );
+
+      /* free the Mesa context */
+      mmesa->glCtx->DriverCtx = NULL;
+      _mesa_destroy_context(mmesa->glCtx);
+      /* free the mga context */
+      FREE(mmesa);
+   }
+}
+
+
+static GLboolean
+mgaCreateBuffer( __DRIscreenPrivate *driScrnPriv,
+                 __DRIdrawablePrivate *driDrawPriv,
+                 const __GLcontextModes *mesaVis,
+                 GLboolean isPixmap )
+{
+   if (isPixmap) {
+      return GL_FALSE; /* not implemented */
+   }
+   else {
+      GLboolean swStencil = (mesaVis->stencilBits > 0 && 
+			     mesaVis->depthBits != 24);
+
+      driDrawPriv->driverPrivate = (void *) 
+         _mesa_create_framebuffer(mesaVis,
+                                  GL_FALSE,  /* software depth buffer? */
+                                  swStencil,
+                                  mesaVis->accumRedBits > 0,
+                                  mesaVis->alphaBits > 0 );
+
+      return (driDrawPriv->driverPrivate != NULL);
+   }
+}
+
+
+static void
+mgaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
+{
+   _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+}
+
+
+static GLboolean
+mgaUnbindContext(__DRIcontextPrivate *driContextPriv)
+{
+   mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate;
+   if (mmesa)
+      mmesa->dirty = ~0;
+
+   return GL_TRUE;
+}
+
+static GLboolean
+mgaOpenFullScreen(__DRIcontextPrivate *driContextPriv)
+{
+    return GL_TRUE;
+}
+
+static GLboolean
+mgaCloseFullScreen(__DRIcontextPrivate *driContextPriv)
+{
+    return GL_TRUE;
+}
+
+
+/* This looks buggy to me - the 'b' variable isn't used anywhere...
+ * Hmm - It seems that the drawable is already hooked in to
+ * driDrawablePriv.
+ *
+ * But why are we doing context initialization here???
+ */
+static GLboolean
+mgaMakeCurrent(__DRIcontextPrivate *driContextPriv,
+               __DRIdrawablePrivate *driDrawPriv,
+               __DRIdrawablePrivate *driReadPriv)
+{
+   fprintf(stderr, "%s\n", __FUNCTION__);
+
+   if (driContextPriv) {
+      mgaContextPtr mmesa = (mgaContextPtr) driContextPriv->driverPrivate;
+
+      if (mmesa->driDrawable != driDrawPriv) {
+	 mmesa->driDrawable = driDrawPriv;
+	 mmesa->dirty = ~0; 
+	 mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK); 
+      }
+
+      _mesa_make_current2(mmesa->glCtx,
+                          (GLframebuffer *) driDrawPriv->driverPrivate,
+                          (GLframebuffer *) driReadPriv->driverPrivate);
+
+      if (!mmesa->glCtx->Viewport.Width)
+	 _mesa_set_viewport(mmesa->glCtx, 0, 0,
+                            driDrawPriv->w, driDrawPriv->h);
+
+   }
+   else {
+      _mesa_make_current(NULL, NULL);
+   }
+
+   return GL_TRUE;
+}
+
+void mgaGetLock( mgaContextPtr mmesa, GLuint flags )
+{
+   __DRIdrawablePrivate *dPriv = mmesa->driDrawable;
+   MGASAREAPrivPtr sarea = mmesa->sarea;
+   int me = mmesa->hHWContext;
+   int i;
+
+   fprintf(stderr, "%s\n", __FUNCTION__);
+
+   drmGetLock(mmesa->driFd, mmesa->hHWContext, flags);
+   
+   fprintf(stderr, 
+	   "mmesa->lastStamp %d dpriv->lastStamp %d *(dpriv->pStamp) %d\n",
+	   mmesa->lastStamp, 
+	   dPriv->lastStamp,
+	   *(dPriv->pStamp));
+   
+   /* The window might have moved, so we might need to get new clip
+    * rects.
+    *
+    * NOTE: This releases and regrabs the hw lock to allow the X server
+    * to respond to the DRI protocol request for new drawable info.
+    * Since the hardware state depends on having the latest drawable
+    * clip rects, all state checking must be done _after_ this call.
+    */
+   DRI_VALIDATE_DRAWABLE_INFO( sPriv, dPriv );
+
+   if ( mmesa->lastStamp == 0 ||
+	mmesa->lastStamp != dPriv->lastStamp ) {
+      mmesa->lastStamp = dPriv->lastStamp;
+      mmesa->SetupNewInputs |= VERT_BIT_CLIP;
+      mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK);
+      mgaUpdateRects( mmesa, (MGA_FRONT|MGA_BACK) );
+   }
+
+   mmesa->dirty |= MGA_UPLOAD_CONTEXT | MGA_UPLOAD_CLIPRECTS;
+
+   mmesa->sarea->dirty |= MGA_UPLOAD_CONTEXT;
+
+   if (sarea->ctxOwner != me) {
+      mmesa->dirty |= (MGA_UPLOAD_CONTEXT | MGA_UPLOAD_TEX0 |
+		       MGA_UPLOAD_TEX1 | MGA_UPLOAD_PIPE);
+      sarea->ctxOwner=me;
+   }
+
+   for (i = 0 ; i < mmesa->lastTexHeap ; i++)
+      if (sarea->texAge[i] != mmesa->texAge[i])
+	 mgaAgeTextures( mmesa, i );
+
+   sarea->last_quiescent = -1;	/* just kill it for now */
+}
+
+
+
+static const struct __DriverAPIRec mgaAPI = {
+   mgaInitDriver,
+   mgaDestroyScreen,
+   mgaCreateContext,
+   mgaDestroyContext,
+   mgaCreateBuffer,
+   mgaDestroyBuffer,
+   mgaSwapBuffers,
+   mgaMakeCurrent,
+   mgaUnbindContext,
+   mgaOpenFullScreen,
+   mgaCloseFullScreen
+};
+
+
+
+/*
+ * This is the bootstrap function for the driver.
+ * The __driCreateScreen name is the symbol that libGL.so fetches.
+ * Return:  pointer to a __DRIscreenPrivate.
+ */
+void *__driCreateScreen(Display *dpy, int scrn, __DRIscreen *psc,
+                        int numConfigs, __GLXvisualConfig *config)
+{
+   __DRIscreenPrivate *psp;
+   psp = __driUtilCreateScreen(dpy, scrn, psc, numConfigs, config, &mgaAPI);
+   return (void *) psp;
+}

src/mesa/drivers/dri/mga/mga_xmesa.h

@@ -0,0 +1,142 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mga_xmesa.h,v 1.12 2002/12/16 16:18:52 dawes Exp $ */
+
+#ifndef _MGA_INIT_H_
+#define _MGA_INIT_H_
+
+#include <sys/time.h>
+#include "dri_util.h"
+#include "mtypes.h"
+#include "mgaregs.h"
+#include "mga_common.h"
+
+typedef struct mga_screen_private_s {
+
+   int chipset;
+   int width;
+   int height;
+   int mem;
+
+   int cpp;			/* for front and back buffers */
+   GLint agpMode;
+   unsigned int irq;		/* IRQ number (0 means none) */
+
+   unsigned int mAccess;
+
+   unsigned int frontOffset;
+   unsigned int frontPitch;
+   unsigned int backOffset;
+   unsigned int backPitch;
+
+   unsigned int depthOffset;
+   unsigned int depthPitch;
+   int depthCpp;
+
+   unsigned int dmaOffset;
+
+   unsigned int textureOffset[DRM_MGA_NR_TEX_HEAPS];
+   unsigned int textureSize[DRM_MGA_NR_TEX_HEAPS];
+   int logTextureGranularity[DRM_MGA_NR_TEX_HEAPS];
+   char *texVirtual[DRM_MGA_NR_TEX_HEAPS];
+
+
+   __DRIscreenPrivate *sPriv;
+   drmBufMapPtr  bufs;
+
+   drmRegion mmio;
+   drmRegion status;
+   drmRegion primary;
+   drmRegion buffers;
+   unsigned int sarea_priv_offset;
+} mgaScreenPrivate;
+
+
+#include "mgacontext.h"
+
+extern void mgaGetLock( mgaContextPtr mmesa, GLuint flags );
+extern void mgaEmitHwStateLocked( mgaContextPtr mmesa );
+extern void mgaEmitScissorValues( mgaContextPtr mmesa, int box_nr, int emit );
+
+#define GET_DISPATCH_AGE( mmesa ) mmesa->sarea->last_dispatch
+#define GET_ENQUEUE_AGE( mmesa ) mmesa->sarea->last_enqueue
+
+
+
+/* Lock the hardware and validate our state.
+ */
+#define LOCK_HARDWARE( mmesa )					\
+  do {								\
+    char __ret=0;						\
+    DRM_CAS(mmesa->driHwLock, mmesa->hHWContext,		\
+	    (DRM_LOCK_HELD|mmesa->hHWContext), __ret);		\
+    if (__ret)							\
+        mgaGetLock( mmesa, 0 );					\
+  } while (0)
+
+
+/*
+ */
+#define LOCK_HARDWARE_QUIESCENT( mmesa ) do {	                        \
+	LOCK_HARDWARE( mmesa );			                        \
+	UPDATE_LOCK( mmesa, DRM_LOCK_QUIESCENT | DRM_LOCK_FLUSH );	\
+} while (0)
+
+
+/* Unlock the hardware using the global current context
+ */
+#define UNLOCK_HARDWARE(mmesa) 				\
+    DRM_UNLOCK(mmesa->driFd, mmesa->driHwLock, mmesa->hHWContext);
+
+
+/* Freshen our snapshot of the drawables
+ */
+#define REFRESH_DRAWABLE_INFO( mmesa )		\
+do {						\
+   LOCK_HARDWARE( mmesa );			\
+   mmesa->lastX = mmesa->drawX; 		\
+   mmesa->lastY = mmesa->drawY; 		\
+   UNLOCK_HARDWARE( mmesa );			\
+} while (0)
+
+
+#define GET_DRAWABLE_LOCK( mmesa ) while(0)
+#define RELEASE_DRAWABLE_LOCK( mmesa ) while(0)
+
+
+/* The 2D driver macros are busted -- we can't use them here as they
+ * rely on the 2D driver data structures rather than taking an explicit
+ * base address.
+ */
+#define MGA_BASE( reg )		((unsigned long)(mmesa->mgaScreen->mmio.map))
+#define MGA_ADDR( reg )		(MGA_BASE(reg) + reg)
+
+#define MGA_DEREF( reg )	*(volatile __u32 *)MGA_ADDR( reg )
+#define MGA_READ( reg )		MGA_DEREF( reg )
+#define MGA_WRITE( reg, val )	do { MGA_DEREF( reg ) = val; } while (0)
+
+#endif

src/mesa/drivers/dri/mga/mgabuffers.c

@@ -0,0 +1,292 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgabuffers.c,v 1.13 2002/11/05 17:46:08 tsi Exp $ */
+
+#include <stdio.h>
+#include "mgacontext.h"
+#include "mgabuffers.h"
+#include "mgastate.h"
+#include "mgaioctl.h"
+#include "mgatris.h"
+
+static void mgaXMesaSetFrontClipRects( mgaContextPtr mmesa )
+{
+   __DRIdrawablePrivate *driDrawable = mmesa->driDrawable;
+
+/*   fprintf( stderr, "%s\n", __FUNCTION__ );*/
+
+   if (driDrawable->numClipRects == 0) {
+       static XF86DRIClipRectRec zeroareacliprect = {0,0,0,0};
+       mmesa->numClipRects = 1;
+       mmesa->pClipRects = &zeroareacliprect;
+   } else {
+       mmesa->numClipRects = driDrawable->numClipRects;
+       mmesa->pClipRects = driDrawable->pClipRects;
+   }
+   mmesa->drawX = driDrawable->x;
+   mmesa->drawY = driDrawable->y;
+
+   mmesa->setup.dstorg = mmesa->drawOffset;
+   mmesa->dirty |= MGA_UPLOAD_CONTEXT | MGA_UPLOAD_CLIPRECTS;
+}
+
+
+static void mgaXMesaSetBackClipRects( mgaContextPtr mmesa )
+{
+   __DRIdrawablePrivate *driDrawable = mmesa->driDrawable;
+
+/*   fprintf( stderr, "%s\n", __FUNCTION__ );*/
+
+   if (driDrawable->numBackClipRects == 0)
+   {
+      if (driDrawable->numClipRects == 0) {
+	  static XF86DRIClipRectRec zeroareacliprect = {0,0,0,0};
+	  mmesa->numClipRects = 1;
+	  mmesa->pClipRects = &zeroareacliprect;
+      } else {
+	  mmesa->numClipRects = driDrawable->numClipRects;
+	  mmesa->pClipRects = driDrawable->pClipRects;
+      }
+      mmesa->drawX = driDrawable->x;
+      mmesa->drawY = driDrawable->y;
+   } else {
+      mmesa->numClipRects = driDrawable->numBackClipRects;
+      mmesa->pClipRects = driDrawable->pBackClipRects;
+      mmesa->drawX = driDrawable->backX;
+      mmesa->drawY = driDrawable->backY;
+   }
+
+   mmesa->setup.dstorg = mmesa->drawOffset;
+   mmesa->dirty |= MGA_UPLOAD_CONTEXT | MGA_UPLOAD_CLIPRECTS;
+}
+
+
+
+#if 0
+static void mgaUpdateRectsFromSarea( mgaContextPtr mmesa )
+{
+   __DRIdrawablePrivate *driDrawable = mmesa->driDrawable;
+   __DRIscreenPrivate *driScreen = mmesa->driScreen;
+   MGASAREAPrivPtr sarea = mmesa->sarea;
+   int i = 0, top = 0;
+
+
+   if (sarea->exported_buffers & MGA_BACK) {
+
+      driDrawable->numBackClipRects = sarea->exported_nback;
+      driDrawable->pBackClipRects = mmesa->tmp_boxes[0];
+
+      top = sarea->exported_nback;
+      for (i = 0 ; i < top ; i++)
+	 driDrawable->pBackClipRects[i] =
+	    *(XF86DRIClipRectPtr)&(sarea->exported_boxes[i]);
+   }
+
+
+   if (sarea->exported_buffers & MGA_FRONT)
+   {
+      int start = top;
+
+      driDrawable->numClipRects = sarea->exported_nfront;
+      driDrawable->pClipRects = mmesa->tmp_boxes[1];
+
+      top += sarea->exported_nfront;
+      for ( ; i < top ; i++)
+	 driDrawable->pClipRects[i-start] =
+	    *(XF86DRIClipRectPtr)&(sarea->exported_boxes[i]);
+
+   }
+
+
+
+   driDrawable->index = sarea->exported_index;
+   driDrawable->lastStamp = sarea->exported_stamp;
+   driDrawable->x = sarea->exported_front_x;
+   driDrawable->y = sarea->exported_front_y;
+   driDrawable->backX = sarea->exported_back_x;
+   driDrawable->backY = sarea->exported_back_y;
+   driDrawable->w = sarea->exported_w;
+   driDrawable->h = sarea->exported_h;
+   driDrawable->pStamp =
+      &(driScreen->pSAREA->drawableTable[driDrawable->index].stamp);
+
+   mmesa->dirty_cliprects = (MGA_FRONT|MGA_BACK) & ~(sarea->exported_buffers);
+}
+#endif
+
+#if 0
+static void printSareaRects( mgaContextPtr mmesa )
+{
+   __DRIscreenPrivate *driScreen = mmesa->driScreen;
+   MGASAREAPrivPtr sarea = mmesa->sarea;
+   int i;
+
+   fprintf(stderr, "sarea->exported: %d\n", sarea->exported_drawable);
+   fprintf(stderr, "sarea->exported_index: %d\n", sarea->exported_index);
+   fprintf(stderr, "sarea->exported_stamp: %d\n", sarea->exported_stamp);
+   fprintf(stderr, "sarea->exported_front_x: %d\n", sarea->exported_front_x);
+   fprintf(stderr, "sarea->exported_front_y: %d\n", sarea->exported_front_y);
+   fprintf(stderr, "sarea->exported_back_x: %d\n", sarea->exported_back_x);
+   fprintf(stderr, "sarea->exported_back_y: %d\n", sarea->exported_back_y);
+   fprintf(stderr, "sarea->exported_w: %d\n", sarea->exported_w);
+   fprintf(stderr, "sarea->exported_h: %d\n", sarea->exported_h);
+   fprintf(stderr, "sarea->exported_buffers: %d\n", sarea->exported_buffers);
+   fprintf(stderr, "sarea->exported_nfront: %d\n", sarea->exported_nfront);
+   fprintf(stderr, "sarea->exported_nback: %d\n", sarea->exported_nback);
+
+   i = 0;
+   if (sarea->exported_buffers & MGA_BACK)
+      for ( ; i < sarea->exported_nback ; i++)
+	 fprintf(stderr, "back %d: %d,%d-%d,%d\n", i,
+		 sarea->exported_boxes[i].x1, sarea->exported_boxes[i].y1,
+		 sarea->exported_boxes[i].x2, sarea->exported_boxes[i].y2);
+
+   if (sarea->exported_buffers & MGA_FRONT) {
+      int start = i;
+      int top = i + sarea->exported_nfront;
+      for ( ; i < top ; i++)
+	 fprintf(stderr, "front %d: %d,%d-%d,%d\n",
+		 i - start,
+		 sarea->exported_boxes[i].x1, sarea->exported_boxes[i].y1,
+		 sarea->exported_boxes[i].x2, sarea->exported_boxes[i].y2);
+   }
+
+   fprintf(stderr, "drawableTable[%d].stamp: %d\n",
+	   sarea->exported_index,
+	   driScreen->pSAREA->drawableTable[sarea->exported_index].stamp);
+}
+
+static void printMmesaRects( mgaContextPtr mmesa )
+{
+   __DRIscreenPrivate *driScreen = mmesa->driScreen;
+   __DRIdrawablePrivate *driDrawable = mmesa->driDrawable;
+   int nr = mmesa->numClipRects;
+   int i;
+
+   fprintf(stderr, "driDrawable->draw: %ld\n", driDrawable->draw);
+   fprintf(stderr, "driDrawable->index: %d\n", driDrawable->index);
+   fprintf(stderr, "driDrawable->lastStamp: %d\n", driDrawable->lastStamp);
+   fprintf(stderr, "mmesa->drawX: %d\n", mmesa->drawX);
+   fprintf(stderr, "mmesa->drawY: %d\n", mmesa->drawY);
+   fprintf(stderr, "driDrawable->w: %d\n", driDrawable->w);
+   fprintf(stderr, "driDrawable->h: %d\n", driDrawable->h);
+
+   for (i = 0 ; i < nr ; i++)
+      fprintf(stderr, "box %d: %d,%d-%d,%d\n", i,
+	      mmesa->pClipRects[i].x1, mmesa->pClipRects[i].y1,
+	      mmesa->pClipRects[i].x2, mmesa->pClipRects[i].y2);
+
+   fprintf(stderr, "mmesa->draw_buffer: %d\n", mmesa->draw_buffer);
+   fprintf(stderr, "drawableTable[%d].stamp: %d\n",
+	   driDrawable->index,
+	   driScreen->pSAREA->drawableTable[driDrawable->index].stamp);
+}
+#endif
+
+
+
+void mgaUpdateRects( mgaContextPtr mmesa, GLuint buffers )
+{
+   __DRIdrawablePrivate *driDrawable = mmesa->driDrawable;
+   MGASAREAPrivPtr sarea = mmesa->sarea;
+
+/*   fprintf(stderr, "%s\n", __FUNCTION__);*/
+
+   DRI_VALIDATE_DRAWABLE_INFO(driScreen, driDrawable); 
+   mmesa->dirty_cliprects = 0;	
+
+   if (mmesa->draw_buffer == MGA_FRONT)
+      mgaXMesaSetFrontClipRects( mmesa );
+   else
+      mgaXMesaSetBackClipRects( mmesa );
+
+#if 0
+   printMmesaRects(mmesa); 
+#endif
+
+   sarea->req_drawable = driDrawable->draw;
+   sarea->req_draw_buffer = mmesa->draw_buffer;
+
+   mgaUpdateClipping( mmesa->glCtx );
+   mgaCalcViewport( mmesa->glCtx );
+
+   mmesa->dirty |= MGA_UPLOAD_CLIPRECTS;
+}
+
+
+void mgaDDSetReadBuffer(GLcontext *ctx, GLenum mode )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   if (mode == GL_FRONT_LEFT) 
+   {
+      mmesa->readOffset = mmesa->mgaScreen->frontOffset;
+      mmesa->read_buffer = MGA_FRONT;
+   } 
+   else 
+   {
+      mmesa->readOffset = mmesa->mgaScreen->backOffset;
+      mmesa->read_buffer = MGA_BACK;
+   }
+}
+
+void mgaDDSetDrawBuffer(GLcontext *ctx, GLenum mode )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   FLUSH_BATCH( MGA_CONTEXT(ctx) );
+
+/*   fprintf( stderr, "%s %d\n", __FUNCTION__, mode);*/
+
+   /*
+    * _DrawDestMask is easier to cope with than <mode>.
+    */
+   switch ( ctx->Color._DrawDestMask ) {
+     case FRONT_LEFT_BIT:
+       mmesa->drawOffset = mmesa->mgaScreen->frontOffset;
+       mmesa->readOffset = mmesa->mgaScreen->frontOffset;
+       mmesa->setup.dstorg = mmesa->mgaScreen->frontOffset;
+       mmesa->dirty |= MGA_UPLOAD_CONTEXT;
+       mmesa->draw_buffer = MGA_FRONT;
+       mgaXMesaSetFrontClipRects( mmesa );
+       FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_FALSE );
+       break;
+     case BACK_LEFT_BIT:
+       mmesa->drawOffset = mmesa->mgaScreen->backOffset;
+       mmesa->readOffset = mmesa->mgaScreen->backOffset;
+       mmesa->setup.dstorg = mmesa->mgaScreen->backOffset;
+       mmesa->draw_buffer = MGA_BACK;
+       mmesa->dirty |= MGA_UPLOAD_CONTEXT;
+       mgaXMesaSetBackClipRects( mmesa );
+       FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_FALSE );
+       break;
+     default:
+       FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_TRUE );
+       break;
+   }
+}
+

src/mesa/drivers/dri/mga/mgabuffers.h

@@ -0,0 +1,37 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgabuffers.h,v 1.7 2002/10/30 12:51:35 alanh Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef MGA_BUFFERS_H
+#define MGA_BUFFERS_H
+
+void mgaDDSetDrawBuffer(GLcontext *ctx, GLenum mode );
+void mgaDDSetReadBuffer(GLcontext *ctx, GLenum mode );
+
+void mgaUpdateRects( mgaContextPtr mmesa, GLuint buffers );
+
+#endif

src/mesa/drivers/dri/mga/mgacontext.h

@@ -0,0 +1,309 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgacontext.h,v 1.7 2002/12/16 16:18:52 dawes Exp $*/
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef MGALIB_INC
+#define MGALIB_INC
+
+//#include <X11/Xlibint.h>
+#include "dri_util.h"
+#include "mtypes.h"
+#include "xf86drm.h"
+#include "mm.h"
+//#include "mem.h"
+#include "mga_sarea.h"
+
+
+#define MGA_SET_FIELD(reg,mask,val)  reg = ((reg) & (mask)) | ((val) & ~(mask))
+#define MGA_FIELD(field,val) (((val) << (field ## _SHIFT)) & ~(field ## _MASK))
+#define MGA_GET_FIELD(field, val) ((val & ~(field ## _MASK)) >> (field ## _SHIFT))
+
+#define MGA_IS_G200(mmesa) (mmesa->mgaScreen->chipset == MGA_CARD_TYPE_G200)
+#define MGA_IS_G400(mmesa) (mmesa->mgaScreen->chipset == MGA_CARD_TYPE_G400)
+
+
+/* SoftwareFallback
+ *    - texture env GL_BLEND -- can be fixed
+ *    - 1D and 3D textures
+ *    - incomplete textures
+ *    - GL_DEPTH_FUNC == GL_NEVER not in h/w
+ */
+#define MGA_FALLBACK_TEXTURE        0x1
+#define MGA_FALLBACK_DRAW_BUFFER    0x2
+#define MGA_FALLBACK_READ_BUFFER    0x4
+#define MGA_FALLBACK_LOGICOP        0x8
+#define MGA_FALLBACK_RENDERMODE     0x10
+#define MGA_FALLBACK_STENCIL        0x20
+#define MGA_FALLBACK_DEPTH          0x40
+
+
+/* For mgaCtx->new_state.
+ */
+#define MGA_NEW_DEPTH   0x1
+#define MGA_NEW_ALPHA   0x2
+#define MGA_NEW_CLIP    0x8
+#define MGA_NEW_TEXTURE 0x20
+#define MGA_NEW_CULL    0x40
+#define MGA_NEW_WARP    0x80
+#define MGA_NEW_STENCIL 0x100
+#define MGA_NEW_CONTEXT 0x200
+
+/* Use the templated vertex formats:
+ */
+#define TAG(x) mga##x
+#include "tnl_dd/t_dd_vertex.h"
+#undef TAG
+
+typedef struct mga_context_t mgaContext;
+typedef struct mga_context_t *mgaContextPtr;
+
+typedef void (*mga_tri_func)( mgaContextPtr, mgaVertex *, mgaVertex *,
+			       mgaVertex * );
+typedef void (*mga_line_func)( mgaContextPtr, mgaVertex *, mgaVertex * );
+typedef void (*mga_point_func)( mgaContextPtr, mgaVertex * );
+
+
+
+/* Reasons why the GL_BLEND fallback mightn't work:
+ */
+#define MGA_BLEND_ENV_COLOR 0x1
+#define MGA_BLEND_MULTITEX  0x2
+
+struct mga_texture_object_s;
+struct mga_screen_private_s;
+
+#define MGA_TEX_MAXLEVELS 5
+
+typedef struct mga_texture_object_s
+{
+   struct mga_texture_object_s *next;
+   struct mga_texture_object_s *prev;
+   struct gl_texture_object *tObj;
+   struct mga_context_t *ctx;
+   PMemBlock	MemBlock;
+   GLuint		offsets[MGA_TEX_MAXLEVELS];
+   int             lastLevel;
+   GLuint         dirty_images;
+   GLuint		totalSize;
+   int		texelBytes;
+   GLuint 	age;
+   int             bound;
+   int             heap;	/* agp or card */
+
+   mga_texture_regs_t setup;
+} mgaTextureObject_t;
+
+struct mga_context_t {
+
+   GLcontext *glCtx;
+   unsigned int lastStamp;	/* fullscreen breaks dpriv->laststamp,
+				 * need to shadow it here. */
+
+   /* Bookkeeping for texturing
+    */
+   int lastTexHeap;
+   struct mga_texture_object_s TexObjList[MGA_NR_TEX_HEAPS];
+   struct mga_texture_object_s SwappedOut;
+   struct mga_texture_object_s *CurrentTexObj[2];
+   memHeap_t *texHeap[MGA_NR_TEX_HEAPS];
+   int c_texupload;
+   int c_texusage;
+   int tex_thrash;
+
+
+   /* Map GL texture units onto hardware.
+    */
+   GLuint tmu_source[2];
+   
+   GLboolean default32BitTextures;
+
+   /* Manage fallbacks
+    */
+   GLuint Fallback;  
+
+
+   /* Temporaries for translating away float colors:
+    */
+   struct gl_client_array UbyteColor;
+   struct gl_client_array UbyteSecondaryColor;
+
+   /* Support for limited GL_BLEND fallback
+    */
+   unsigned int blend_flags;
+   unsigned int envcolor;
+
+   /* Rasterization state 
+    */
+   GLuint SetupNewInputs;
+   GLuint SetupIndex;
+   GLuint RenderIndex;
+   
+   GLuint hw_primitive;
+   GLenum raster_primitive;
+   GLenum render_primitive;
+
+   char *verts;
+   GLint vertex_stride_shift;
+   GLuint vertex_format;		
+   GLuint vertex_size;
+
+   /* Fallback rasterization functions 
+    */
+   mga_point_func draw_point;
+   mga_line_func draw_line;
+   mga_tri_func draw_tri;
+
+
+   /* Manage driver and hardware state
+    */
+   GLuint        new_gl_state; 
+   GLuint        new_state; 
+   GLuint        dirty;
+
+   mga_context_regs_t setup;
+
+   GLuint        ClearColor;
+   GLuint        ClearDepth;
+   GLuint        poly_stipple;
+   GLfloat       depth_scale;
+
+   GLuint        depth_clear_mask;
+   GLuint        stencil_clear_mask;
+   GLuint        hw_stencil;
+   GLuint        haveHwStipple;
+   GLfloat       hw_viewport[16];
+
+   /* Dma buffers
+    */
+   drmBufPtr  vertex_dma_buffer;
+   drmBufPtr  iload_buffer;
+
+   /* VBI
+    */
+   GLuint vbl_seq;
+
+   /* Drawable, cliprect and scissor information
+    */
+   int dirty_cliprects;		/* which sets of cliprects are uptodate? */
+   int draw_buffer;		/* which buffer are we rendering to */
+   unsigned int drawOffset;		/* draw buffer address in  space */
+   int read_buffer;
+   int readOffset;
+   int drawX, drawY;		/* origin of drawable in draw buffer */
+   int lastX, lastY;		/* detect DSTORG bug */
+   GLuint numClipRects;		/* cliprects for the draw buffer */
+   XF86DRIClipRectPtr pClipRects;
+   XF86DRIClipRectRec draw_rect;
+   XF86DRIClipRectRec scissor_rect;
+   int scissor;
+
+   XF86DRIClipRectRec tmp_boxes[2][MGA_NR_SAREA_CLIPRECTS];
+
+
+   /* Texture aging and DMA based aging.
+    */
+   unsigned int texAge[MGA_NR_TEX_HEAPS];/* texture LRU age  */
+   unsigned int dirtyAge;		/* buffer age for synchronization */
+
+   GLuint primary_offset;
+
+   /* Mirrors of some DRI state.
+    */
+   GLframebuffer *glBuffer;
+   drmContext hHWContext;
+   drmLock *driHwLock;
+   int driFd;
+   __DRIdrawablePrivate *driDrawable;
+   __DRIscreenPrivate *driScreen;
+   struct mga_screen_private_s *mgaScreen;
+   MGASAREAPrivPtr sarea;
+};
+
+#define MGA_CONTEXT(ctx) ((mgaContextPtr)(ctx->DriverCtx))
+
+#define MGAPACKCOLOR555(r,g,b,a) \
+  ((((r) & 0xf8) << 7) | (((g) & 0xf8) << 2) | (((b) & 0xf8) >> 3) | \
+    ((a) ? 0x8000 : 0))
+
+#define MGAPACKCOLOR565(r,g,b) \
+  ((((r) & 0xf8) << 8) | (((g) & 0xfc) << 3) | (((b) & 0xf8) >> 3))
+
+#define MGAPACKCOLOR88(l, a) \
+  (((l) << 8) | (a))
+
+#define MGAPACKCOLOR888(r,g,b) \
+  (((r) << 16) | ((g) << 8) | (b))
+
+#define MGAPACKCOLOR8888(r,g,b,a) \
+  (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
+
+#define MGAPACKCOLOR4444(r,g,b,a) \
+  ((((a) & 0xf0) << 8) | (((r) & 0xf0) << 4) | ((g) & 0xf0) | ((b) >> 4))
+
+
+#define MGA_DEBUG 0
+#ifndef MGA_DEBUG
+extern int MGA_DEBUG;
+#endif
+
+#define DEBUG_ALWAYS_SYNC	0x1
+#define DEBUG_VERBOSE_MSG	0x2
+#define DEBUG_VERBOSE_LRU	0x4
+#define DEBUG_VERBOSE_DRI	0x8
+#define DEBUG_VERBOSE_IOCTL	0x10
+#define DEBUG_VERBOSE_2D	0x20
+#define DEBUG_VERBOSE_FALLBACK	0x40
+
+static __inline__ GLuint mgaPackColor(GLuint cpp,
+				      GLubyte r, GLubyte g,
+				      GLubyte b, GLubyte a)
+{
+  switch (cpp) {
+  case 2:
+    return MGAPACKCOLOR565(r,g,b);
+  case 4:
+    return MGAPACKCOLOR8888(r,g,b,a);
+  default:
+    return 0;
+  }
+}
+
+
+/*
+ * Subpixel offsets for window coordinates:
+ */
+#define SUBPIXEL_X (-0.5F)
+#define SUBPIXEL_Y (-0.5F + 0.125)
+
+
+#define MGA_WA_TRIANGLES     0x18000000
+#define MGA_WA_TRISTRIP_T0   0x02010200
+#define MGA_WA_TRIFAN_T0     0x01000408
+#define MGA_WA_TRISTRIP_T0T1 0x02010400
+#define MGA_WA_TRIFAN_T0T1   0x01000810
+
+#endif

src/mesa/drivers/dri/mga/mgadd.c

@@ -0,0 +1,171 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgadd.c,v 1.14 2002/10/30 12:51:35 alanh Exp $ */
+
+
+#include "mtypes.h"
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mm.h"
+#include "mgacontext.h"
+#include "mgadd.h"
+#include "mgastate.h"
+#include "mgaspan.h"
+#include "mgatex.h"
+#include "mgatris.h"
+#include "mgavb.h"
+#include "mga_xmesa.h"
+#include "extensions.h"
+#if defined(USE_X86_ASM)
+#include "X86/common_x86_asm.h"
+#endif
+
+#define MGA_DATE	"20020221"
+
+
+/***************************************
+ * Mesa's Driver Functions
+ ***************************************/
+
+
+static const GLubyte *mgaDDGetString( GLcontext *ctx, GLenum name )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   static char buffer[128];
+
+   switch ( name ) {
+   case GL_VENDOR:
+      return (GLubyte *) "VA Linux Systems Inc.";
+
+   case GL_RENDERER:
+      sprintf( buffer, "Mesa DRI %s " MGA_DATE,
+	       MGA_IS_G400(mmesa) ? "G400" :
+	       MGA_IS_G200(mmesa) ? "G200" : "MGA" );
+
+      /* Append any AGP-specific information.
+       */
+      switch ( mmesa->mgaScreen->agpMode ) {
+      case 1:
+	 strncat( buffer, " AGP 1x", 7 );
+	 break;
+      case 2:
+	 strncat( buffer, " AGP 2x", 7 );
+	 break;
+      case 4:
+	 strncat( buffer, " AGP 4x", 7 );
+	 break;
+      }
+
+      /* Append any CPU-specific information.
+       */
+#ifdef USE_X86_ASM
+      if ( _mesa_x86_cpu_features ) {
+	 strncat( buffer, " x86", 4 );
+      }
+#endif
+#ifdef USE_MMX_ASM
+      if ( cpu_has_mmx ) {
+	 strncat( buffer, "/MMX", 4 );
+      }
+#endif
+#ifdef USE_3DNOW_ASM
+      if ( cpu_has_3dnow ) {
+	 strncat( buffer, "/3DNow!", 7 );
+      }
+#endif
+#ifdef USE_SSE_ASM
+      if ( cpu_has_xmm ) {
+	 strncat( buffer, "/SSE", 4 );
+      }
+#endif
+      return (GLubyte *)buffer;
+
+   default:
+      return NULL;
+   }
+}
+
+
+
+static void mgaBufferSize(GLframebuffer *buffer, GLuint *width, GLuint *height)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   /* Need to lock to make sure the driDrawable is uptodate.  This
+    * information is used to resize Mesa's software buffers, so it has
+    * to be correct.
+    */
+   LOCK_HARDWARE( mmesa );
+   *width = mmesa->driDrawable->w;
+   *height = mmesa->driDrawable->h;
+   UNLOCK_HARDWARE( mmesa );
+}
+
+void mgaDDExtensionsInit( GLcontext *ctx )
+{
+   /* paletted_textures currently doesn't work, but we could fix them later */
+   /*
+   _mesa_enable_extension( ctx, "GL_EXT_shared_texture_palette" );
+   _mesa_enable_extension( ctx, "GL_EXT_paletted_texture" );
+   */
+
+   _mesa_enable_extension( ctx, "GL_ARB_texture_compression" );
+   _mesa_enable_extension( ctx, "GL_ARB_multisample" );
+
+   _mesa_enable_extension( ctx, "GL_SGIS_generate_mipmap" );
+
+   /* Turn on multitexture and texenv_add for the G400.
+    */
+   if (MGA_IS_G400(MGA_CONTEXT(ctx))) {
+      _mesa_enable_extension( ctx, "GL_ARB_multitexture" );
+      _mesa_enable_extension( ctx, "GL_ARB_texture_env_add" );
+
+      _mesa_enable_extension( ctx, "GL_EXT_texture_env_add" );
+
+#if defined (MESA_packed_depth_stencil)
+      _mesa_enable_extension( ctx, "GL_MESA_packed_depth_stencil" );
+#endif
+
+#if defined (MESA_experimetal_agp_allocator)
+      if (!getenv("MGA_DISABLE_AGP_ALLOCATOR"))  
+	 _mesa_enable_extension( ctx, "GL_MESA_experimental_agp_allocator" );
+#endif
+   }
+}
+
+
+
+void mgaDDInitDriverFuncs( GLcontext *ctx )
+{
+   ctx->Driver.GetBufferSize = mgaBufferSize;
+   ctx->Driver.ResizeBuffers = _swrast_alloc_buffers;
+   ctx->Driver.GetString = mgaDDGetString;
+}

src/mesa/drivers/dri/mga/mgadd.h

@@ -0,0 +1,37 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgadd.h,v 1.3 2002/10/30 12:51:35 alanh Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef MGADD_INC
+#define MGADD_INC
+
+#include "context.h"
+
+void mgaDDInitDriverFuncs( GLcontext *ctx );
+void mgaDDExtensionsInit( GLcontext *ctx );
+
+#endif

src/mesa/drivers/dri/mga/mgaioctl.c

@@ -0,0 +1,693 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ *    Gareth Hughes <gareth@valinux.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgaioctl.c,v 1.16 2002/12/16 16:18:52 dawes Exp $ */
+
+#include <stdio.h>
+#include <errno.h>
+
+#include "mtypes.h"
+#include "macros.h"
+#include "dd.h"
+#include "swrast/swrast.h"
+
+#include "mm.h"
+#include "mgacontext.h"
+#include "mgadd.h"
+#include "mgastate.h"
+#include "mgatex.h"
+#include "mgavb.h"
+#include "mgaioctl.h"
+#include "mgatris.h"
+#include "mgabuffers.h"
+
+
+#include "xf86drm.h"
+#include "mga_common.h"
+
+static void mga_iload_dma_ioctl(mgaContextPtr mmesa,
+				unsigned long dest,
+				int length)
+{
+   drmBufPtr buf = mmesa->iload_buffer;
+   drmMGAIload iload;
+   int ret, i;
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr, "DRM_IOCTL_MGA_ILOAD idx %d dst %x length %d\n",
+	      buf->idx, (int) dest, length);
+
+   iload.idx = buf->idx;
+   iload.dstorg = dest;
+   iload.length = length;
+
+   i = 0;
+   do {
+      ret = drmCommandWrite( mmesa->driFd, DRM_MGA_ILOAD, 
+                             &iload, sizeof(drmMGAIload) );
+   } while ( ret == -EBUSY && i++ < DRM_MGA_IDLE_RETRY );
+
+   if ( ret < 0 ) {
+      printf("send iload retcode = %d\n", ret);
+      exit(1);
+   }
+
+   mmesa->iload_buffer = 0;
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr, "finished iload dma put\n");
+
+}
+
+drmBufPtr mga_get_buffer_ioctl( mgaContextPtr mmesa )
+{
+   int idx = 0;
+   int size = 0;
+   drmDMAReq dma;
+   int retcode;
+   drmBufPtr buf;
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr,  "Getting dma buffer\n");
+
+   dma.context = mmesa->hHWContext;
+   dma.send_count = 0;
+   dma.send_list = NULL;
+   dma.send_sizes = NULL;
+   dma.flags = 0;
+   dma.request_count = 1;
+   dma.request_size = MGA_BUFFER_SIZE;
+   dma.request_list = &idx;
+   dma.request_sizes = &size;
+   dma.granted_count = 0;
+
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr, "drmDMA (get) ctx %d count %d size 0x%x\n",
+	   dma.context, dma.request_count,
+	   dma.request_size);
+
+   while (1) {
+      retcode = drmDMA(mmesa->driFd, &dma);
+
+      if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+	 fprintf(stderr, "retcode %d sz %d idx %d count %d\n",
+		 retcode,
+		 dma.request_sizes[0],
+		 dma.request_list[0],
+		 dma.granted_count);
+
+      if (retcode == 0 &&
+	  dma.request_sizes[0] &&
+	  dma.granted_count)
+	 break;
+
+      if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+	 fprintf(stderr, "\n\nflush");
+
+      UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
+   }
+
+   buf = &(mmesa->mgaScreen->bufs->list[idx]);
+   buf->used = 0;
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr,
+	   "drmDMA (get) returns size[0] 0x%x idx[0] %d\n"
+	   "dma_buffer now: buf idx: %d size: %d used: %d addr %p\n",
+	   dma.request_sizes[0], dma.request_list[0],
+	   buf->idx, buf->total,
+	   buf->used, buf->address);
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr, "finished getbuffer\n");
+
+   return buf;
+}
+
+
+
+
+static void
+mgaDDClear( GLcontext *ctx, GLbitfield mask, GLboolean all,
+            GLint cx, GLint cy, GLint cw, GLint ch )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   __DRIdrawablePrivate *dPriv = mmesa->driDrawable;
+   GLuint flags = 0;
+   GLuint clear_color = mmesa->ClearColor;
+   GLuint clear_depth = 0;
+   GLuint color_mask = 0;
+   GLuint depth_mask = 0;
+   int ret;
+   int i;
+   static int nrclears;
+   drmMGAClearRec clear;
+
+   FLUSH_BATCH( mmesa );
+
+   if ( mask & DD_FRONT_LEFT_BIT ) {
+      flags |= MGA_FRONT;
+      color_mask = mmesa->setup.plnwt;
+      mask &= ~DD_FRONT_LEFT_BIT;
+   }
+
+   if ( mask & DD_BACK_LEFT_BIT ) {
+      flags |= MGA_BACK;
+      color_mask = mmesa->setup.plnwt;
+      mask &= ~DD_BACK_LEFT_BIT;
+   }
+
+   if ( (mask & DD_DEPTH_BIT) && ctx->Depth.Mask ) {
+      flags |= MGA_DEPTH;
+      clear_depth = (mmesa->ClearDepth & mmesa->depth_clear_mask);
+      depth_mask |= mmesa->depth_clear_mask;
+      mask &= ~DD_DEPTH_BIT;
+   }
+
+   if ( (mask & DD_STENCIL_BIT) && mmesa->hw_stencil ) {
+      flags |= MGA_DEPTH;
+      clear_depth |= (ctx->Stencil.Clear & mmesa->stencil_clear_mask);
+      depth_mask |= mmesa->stencil_clear_mask;
+      mask &= ~DD_STENCIL_BIT;
+   }
+
+   if ( flags ) {
+      LOCK_HARDWARE( mmesa );
+
+      if ( mmesa->dirty_cliprects )
+	 mgaUpdateRects( mmesa, (MGA_FRONT | MGA_BACK) );
+
+      /* flip top to bottom */
+      cy = dPriv->h-cy-ch;
+      cx += mmesa->drawX;
+      cy += mmesa->drawY;
+
+      if ( MGA_DEBUG & DEBUG_VERBOSE_IOCTL )
+	 fprintf( stderr, "Clear, bufs %x nbox %d\n",
+		  (int)flags, (int)mmesa->numClipRects );
+
+      for (i = 0 ; i < mmesa->numClipRects ; )
+      {
+	 int nr = MIN2(i + MGA_NR_SAREA_CLIPRECTS, mmesa->numClipRects);
+	 XF86DRIClipRectPtr box = mmesa->pClipRects;
+	 XF86DRIClipRectPtr b = mmesa->sarea->boxes;
+	 int n = 0;
+
+	 if (!all) {
+	    for ( ; i < nr ; i++) {
+	       GLint x = box[i].x1;
+	       GLint y = box[i].y1;
+	       GLint w = box[i].x2 - x;
+	       GLint h = box[i].y2 - y;
+
+	       if (x < cx) w -= cx - x, x = cx;
+	       if (y < cy) h -= cy - y, y = cy;
+	       if (x + w > cx + cw) w = cx + cw - x;
+	       if (y + h > cy + ch) h = cy + ch - y;
+	       if (w <= 0) continue;
+	       if (h <= 0) continue;
+
+	       b->x1 = x;
+	       b->y1 = y;
+	       b->x2 = x + w;
+	       b->y2 = y + h;
+	       b++;
+	       n++;
+	    }
+	 } else {
+	    for ( ; i < nr ; i++) {
+	       *b++ = *(XF86DRIClipRectPtr)&box[i];
+	       n++;
+	    }
+	 }
+
+
+	 if ( MGA_DEBUG & DEBUG_VERBOSE_IOCTL )
+	    fprintf( stderr,
+		     "DRM_IOCTL_MGA_CLEAR flag 0x%x color %x depth %x nbox %d\n",
+		     flags, clear_color, clear_depth, mmesa->sarea->nbox );
+
+	 mmesa->sarea->nbox = n;
+
+         clear.flags = flags;
+         clear.clear_color = clear_color;
+         clear.clear_depth = clear_depth;
+         clear.color_mask = color_mask;
+         clear.depth_mask = depth_mask;
+         ret = drmCommandWrite( mmesa->driFd, DRM_MGA_CLEAR,
+                                 &clear, sizeof(drmMGAClearRec));
+	 if ( ret ) {
+	    fprintf( stderr, "send clear retcode = %d\n", ret );
+	    exit( 1 );
+	 }
+	 if ( MGA_DEBUG & DEBUG_VERBOSE_IOCTL )
+	    fprintf( stderr, "finished clear %d\n", ++nrclears );
+      }
+
+      UNLOCK_HARDWARE( mmesa );
+      mmesa->dirty |= MGA_UPLOAD_CLIPRECTS|MGA_UPLOAD_CONTEXT;
+   }
+
+   if (mask) 
+      _swrast_Clear( ctx, mask, all, cx, cy, cw, ch );
+}
+
+
+int nrswaps;
+
+
+void mgaWaitForVBlank( mgaContextPtr mmesa )
+{
+#if 0
+    drmVBlank vbl;
+    int ret;
+
+    if ( !mmesa->mgaScreen->irq )
+	return;
+
+    if ( getenv("LIBGL_SYNC_REFRESH") ) {
+	/* Wait for until the next vertical blank */
+	vbl.request.type = DRM_VBLANK_RELATIVE;
+	vbl.request.sequence = 1;
+    } else if ( getenv("LIBGL_THROTTLE_REFRESH") ) {
+	/* Wait for at least one vertical blank since the last call */
+	vbl.request.type = DRM_VBLANK_ABSOLUTE;
+	vbl.request.sequence = mmesa->vbl_seq + 1;
+    } else {
+	return;
+    }
+
+    if ((ret = drmWaitVBlank( mmesa->driFd, &vbl ))) {
+	fprintf(stderr, "%s: drmWaitVBlank returned %d, IRQs don't seem to be"
+		" working correctly.\nTry running with LIBGL_THROTTLE_REFRESH"
+		" and LIBL_SYNC_REFRESH unset.\n", __FUNCTION__, ret);
+	exit(1);
+    }
+
+    mmesa->vbl_seq = vbl.reply.sequence;
+#endif
+}
+
+
+/*
+ * Copy the back buffer to the front buffer.
+ */
+void mgaSwapBuffers(__DRIdrawablePrivate *dPriv)
+{
+   mgaContextPtr mmesa;
+   XF86DRIClipRectPtr pbox;
+   GLint nbox;
+   GLint ret, wait = 0;
+   GLint i;
+   GLuint last_frame, last_wrap;
+
+   assert(dPriv);
+   assert(dPriv->driContextPriv);
+   assert(dPriv->driContextPriv->driverPrivate);
+
+   mmesa = (mgaContextPtr) dPriv->driContextPriv->driverPrivate;
+
+   FLUSH_BATCH( mmesa );
+
+   mgaWaitForVBlank( mmesa );
+
+   LOCK_HARDWARE( mmesa );
+
+   last_frame = mmesa->sarea->last_frame.head;
+   last_wrap = mmesa->sarea->last_frame.wrap;
+
+   /* FIXME: Add a timeout to this loop...
+    */
+   while ( 1 ) {
+      if ( last_wrap < mmesa->sarea->last_wrap ||
+	   ( last_wrap == mmesa->sarea->last_wrap &&
+	     last_frame <= (MGA_READ( MGAREG_PRIMADDRESS ) -
+			    mmesa->primary_offset) ) ) {
+	 break;
+      }
+      if ( 0 ) {
+	 wait++;
+	 fprintf( stderr, "   last: head=0x%06x wrap=%d\n",
+		  last_frame, last_wrap );
+	 fprintf( stderr, "   head: head=0x%06lx wrap=%d\n",
+		  (long)(MGA_READ( MGAREG_PRIMADDRESS ) - mmesa->primary_offset),
+		  mmesa->sarea->last_wrap );
+      }
+      UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH );
+
+      for ( i = 0 ; i < 1024 ; i++ ) {
+	 /* Don't just hammer the register... */
+      }
+   }
+   if ( wait )
+      fprintf( stderr, "\n" );
+
+   /* Use the frontbuffer cliprects
+    */
+   if (mmesa->dirty_cliprects & MGA_FRONT)
+      mgaUpdateRects( mmesa, MGA_FRONT );
+
+
+   pbox = dPriv->pClipRects;
+   nbox = dPriv->numClipRects;
+
+   for (i = 0 ; i < nbox ; )
+   {
+      int nr = MIN2(i + MGA_NR_SAREA_CLIPRECTS, dPriv->numClipRects);
+      XF86DRIClipRectPtr b = mmesa->sarea->boxes;
+
+      mmesa->sarea->nbox = nr - i;
+
+      for ( ; i < nr ; i++)
+	 *b++ = pbox[i];
+
+      if (0)
+	 fprintf(stderr, "DRM_IOCTL_MGA_SWAP\n");
+
+      ret = drmCommandNone( mmesa->driFd, DRM_MGA_SWAP );
+      if ( ret ) {
+	 printf("send swap retcode = %d\n", ret);
+	 exit(1);
+      }
+   }
+
+   UNLOCK_HARDWARE( mmesa );
+
+   mmesa->dirty |= MGA_UPLOAD_CLIPRECTS;
+}
+
+
+/* This is overkill
+ */
+void mgaDDFinish( GLcontext *ctx  )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   FLUSH_BATCH( mmesa );
+
+   if (1/*mmesa->sarea->last_quiescent != mmesa->sarea->last_enqueue*/) {
+      if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+	 fprintf(stderr, "mgaRegetLockQuiescent\n");
+
+      LOCK_HARDWARE( mmesa );
+      UPDATE_LOCK( mmesa, DRM_LOCK_QUIESCENT | DRM_LOCK_FLUSH );
+      UNLOCK_HARDWARE( mmesa );
+
+      mmesa->sarea->last_quiescent = mmesa->sarea->last_enqueue;
+   }
+}
+
+void mgaWaitAgeLocked( mgaContextPtr mmesa, int age  )
+{
+   if (GET_DISPATCH_AGE(mmesa) < age) {
+      UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH );
+   }
+}
+
+
+void mgaWaitAge( mgaContextPtr mmesa, int age  )
+{
+   if (GET_DISPATCH_AGE(mmesa) < age) {
+      LOCK_HARDWARE(mmesa);
+      if (GET_DISPATCH_AGE(mmesa) < age) {
+	 UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH );
+      }
+      UNLOCK_HARDWARE(mmesa);
+   }
+}
+
+
+static int intersect_rect( XF86DRIClipRectPtr out,
+			   XF86DRIClipRectPtr a,
+			   XF86DRIClipRectPtr b )
+{
+   *out = *a;
+   if (b->x1 > out->x1) out->x1 = b->x1;
+   if (b->y1 > out->y1) out->y1 = b->y1;
+   if (b->x2 < out->x2) out->x2 = b->x2;
+   if (b->y2 < out->y2) out->y2 = b->y2;
+   if (out->x1 > out->x2) return 0;
+   if (out->y1 > out->y2) return 0;
+   return 1;
+}
+
+
+
+
+static void age_mmesa( mgaContextPtr mmesa, int age )
+{
+   if (mmesa->CurrentTexObj[0]) mmesa->CurrentTexObj[0]->age = age;
+   if (mmesa->CurrentTexObj[1]) mmesa->CurrentTexObj[1]->age = age;
+}
+
+#ifdef __i386__
+static int __break_vertex = 0;
+#endif
+
+void mgaFlushVerticesLocked( mgaContextPtr mmesa )
+{
+   XF86DRIClipRectPtr pbox = mmesa->pClipRects;
+   int nbox = mmesa->numClipRects;
+   drmBufPtr buffer = mmesa->vertex_dma_buffer;
+   drmMGAVertex vertex;
+   int i;
+
+   mmesa->vertex_dma_buffer = 0;
+
+   if (!buffer)
+      return;
+
+   if (mmesa->dirty_cliprects & mmesa->draw_buffer)
+      mgaUpdateRects( mmesa, mmesa->draw_buffer );
+
+   if (mmesa->dirty & ~MGA_UPLOAD_CLIPRECTS)
+      mgaEmitHwStateLocked( mmesa );
+
+   /* FIXME: Workaround bug in kernel module.
+    */
+   mmesa->sarea->dirty |= MGA_UPLOAD_CONTEXT;
+
+   if (!nbox)
+      buffer->used = 0;
+
+   if (nbox >= MGA_NR_SAREA_CLIPRECTS)
+      mmesa->dirty |= MGA_UPLOAD_CLIPRECTS;
+
+#if 0
+   if (!buffer->used || !(mmesa->dirty & MGA_UPLOAD_CLIPRECTS))
+   {
+      if (nbox == 1)
+	 mmesa->sarea->nbox = 0;
+      else
+	 mmesa->sarea->nbox = nbox;
+
+      if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+	 fprintf(stderr, "Firing vertex -- case a nbox %d\n", nbox);
+
+      vertex.idx = buffer->idx;
+      vertex.used = buffer->used;
+      vertex.discard = 1;
+      drmCommandWrite( mmesa->driFd, DRM_MGA_VERTEX, 
+                       &vertex, sizeof(drmMGAVertex) );
+
+      age_mmesa(mmesa, mmesa->sarea->last_enqueue);
+   }
+   else
+#endif
+   {
+      for (i = 0 ; i < nbox ; )
+      {
+	 int nr = MIN2(i + MGA_NR_SAREA_CLIPRECTS, nbox);
+	 XF86DRIClipRectPtr b = mmesa->sarea->boxes;
+	 int discard = 0;
+
+	 if (mmesa->scissor) {
+	    mmesa->sarea->nbox = 0;
+
+	    for ( ; i < nr ; i++) {
+	       *b = pbox[i];
+	       if (intersect_rect(b, b, &mmesa->scissor_rect)) {
+		  mmesa->sarea->nbox++;
+		  b++;
+	       }
+	    }
+
+	    /* Culled?
+	     */
+	    if (!mmesa->sarea->nbox) {
+	       if (nr < nbox) continue;
+	       buffer->used = 0;
+	    }
+	 } else {
+	    mmesa->sarea->nbox = nr - i;
+	    for ( ; i < nr ; i++)
+	       *b++ = pbox[i];
+	 }
+
+	 /* Finished with the buffer?
+	  */
+	 if (nr == nbox)
+	    discard = 1;
+
+	 mmesa->sarea->dirty |= MGA_UPLOAD_CLIPRECTS;
+
+         vertex.idx = buffer->idx;
+         vertex.used = buffer->used;
+         vertex.discard = discard;
+         drmCommandWrite( mmesa->driFd, DRM_MGA_VERTEX, 
+                          &vertex, sizeof(drmMGAVertex) );
+
+	 age_mmesa(mmesa, mmesa->sarea->last_enqueue);
+      }
+   }
+
+   /* Do we really need to do this ? */
+#ifdef __i386__
+   if ( __break_vertex ) {
+      __asm__ __volatile__ ( "int $3" );
+   }
+#endif
+
+   mmesa->dirty &= ~MGA_UPLOAD_CLIPRECTS;
+}
+
+void mgaFlushVertices( mgaContextPtr mmesa )
+{
+   LOCK_HARDWARE( mmesa );
+   mgaFlushVerticesLocked( mmesa );
+   UNLOCK_HARDWARE( mmesa );
+}
+
+
+void mgaFireILoadLocked( mgaContextPtr mmesa,
+			 GLuint offset, GLuint length )
+{
+   if (!mmesa->iload_buffer) {
+      fprintf(stderr, "mgaFireILoad: no buffer\n");
+      return;
+   }
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr, "mgaFireILoad idx %d ofs 0x%x length %d\n",
+	      mmesa->iload_buffer->idx, (int)offset, (int)length );
+
+   mga_iload_dma_ioctl( mmesa, offset, length );
+}
+
+void mgaGetILoadBufferLocked( mgaContextPtr mmesa )
+{
+   if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)
+      fprintf(stderr, "mgaGetIloadBuffer (buffer now %p)\n",
+	   mmesa->iload_buffer);
+
+   mmesa->iload_buffer = mga_get_buffer_ioctl( mmesa );
+}
+
+drmBufPtr mgaGetBufferLocked( mgaContextPtr mmesa )
+{
+   return mga_get_buffer_ioctl( mmesa );
+}
+
+
+
+void mgaDDFlush( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+
+
+   FLUSH_BATCH( mmesa );
+
+   /* This may be called redundantly - dispatch_age may trail what
+    * has actually been sent and processed by the hardware.
+    */
+   if (1 || GET_DISPATCH_AGE( mmesa ) < mmesa->sarea->last_enqueue) {
+      LOCK_HARDWARE( mmesa );
+      UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH );
+      UNLOCK_HARDWARE( mmesa );
+   }
+}
+
+
+
+
+void mgaReleaseBufLocked( mgaContextPtr mmesa, drmBufPtr buffer )
+{
+   drmMGAVertex vertex;
+
+   if (!buffer) return;
+
+   vertex.idx = buffer->idx;
+   vertex.used = 0;
+   vertex.discard = 1;
+   drmCommandWrite( mmesa->driFd, DRM_MGA_VERTEX, 
+                    &vertex, sizeof(drmMGAVertex) );
+}
+
+int mgaFlushDMA( int fd, drmLockFlags flags )
+{
+   drmMGALock lock;
+   int ret, i = 0;
+
+   memset( &lock, 0, sizeof(drmMGALock) );
+
+   if ( flags & DRM_LOCK_QUIESCENT )    lock.flags |= DRM_LOCK_QUIESCENT;
+   if ( flags & DRM_LOCK_FLUSH )        lock.flags |= DRM_LOCK_FLUSH;
+   if ( flags & DRM_LOCK_FLUSH_ALL )    lock.flags |= DRM_LOCK_FLUSH_ALL;
+
+   do {
+      ret = drmCommandWrite( fd, DRM_MGA_FLUSH, &lock, sizeof(drmMGALock) );
+   } while ( ret && errno == EBUSY && i++ < DRM_MGA_IDLE_RETRY );
+
+   if ( ret == 0 )
+      return 0;
+   if ( errno != EBUSY )
+      return -errno;
+
+   if ( lock.flags & DRM_LOCK_QUIESCENT ) {
+      /* Only keep trying if we need quiescence.
+       */
+      lock.flags &= ~(DRM_LOCK_FLUSH | DRM_LOCK_FLUSH_ALL);
+
+      do {
+         ret = drmCommandWrite( fd, DRM_MGA_FLUSH, &lock, sizeof(drmMGALock) );
+      } while ( ret && errno == EBUSY && i++ < DRM_MGA_IDLE_RETRY );
+   }
+
+   if ( ret == 0 ) {
+      return 0;
+   } else {
+      return -errno;
+   }
+}
+
+void mgaDDInitIoctlFuncs( GLcontext *ctx )
+{
+   ctx->Driver.Clear = mgaDDClear;
+   ctx->Driver.Flush = mgaDDFlush;
+   ctx->Driver.Finish = mgaDDFinish;
+}

src/mesa/drivers/dri/mga/mgaioctl.h

@@ -0,0 +1,113 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ *    Gareth Hughes <gareth@valinux.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgaioctl.h,v 1.11 2002/10/30 12:51:36 alanh Exp $ */
+
+#ifndef MGA_IOCTL_H
+#define MGA_IOCTL_H
+
+#include "mgacontext.h"
+#include "mga_xmesa.h"
+
+void mgaSwapBuffers( __DRIdrawablePrivate *dPriv );
+
+GLuint *mgaAllocVertexDwords( mgaContextPtr mmesa, int dwords );
+
+
+void mgaGetILoadBufferLocked( mgaContextPtr mmesa );
+drmBufPtr mgaGetBufferLocked( mgaContextPtr mmesa );
+
+void mgaWaitForVBlank( mgaContextPtr mmesa );
+
+void mgaFireILoadLocked( mgaContextPtr mmesa,
+			 GLuint offset, GLuint length );
+
+void mgaWaitAgeLocked( mgaContextPtr mmesa, int age );
+void mgaWaitAge( mgaContextPtr mmesa, int age );
+
+void mgaFlushVertices( mgaContextPtr mmesa );
+void mgaFlushVerticesLocked( mgaContextPtr mmesa );
+void mgaReleaseBufLocked( mgaContextPtr mmesa, drmBufPtr buffer );
+int mgaFlushDMA( int fd, drmLockFlags flags );
+
+void mgaDDFlush( GLcontext *ctx );
+void mgaDDFinish( GLcontext *ctx );
+
+void mgaDDInitIoctlFuncs( GLcontext *ctx );
+
+#define FLUSH_BATCH(mmesa) do {						\
+        if (MGA_DEBUG&DEBUG_VERBOSE_IOCTL)  				\
+              fprintf(stderr, "FLUSH_BATCH in %s\n", __FUNCTION__);	\
+	if (mmesa->vertex_dma_buffer) mgaFlushVertices(mmesa);		\
+} while (0)
+
+#define MGA_STATECHANGE(mmesa, flag) do {	\
+   FLUSH_BATCH(mmesa);				\
+   mmesa->dirty |= flag;			\
+} while (0)
+
+
+extern drmBufPtr mga_get_buffer_ioctl( mgaContextPtr mmesa );
+
+static __inline
+GLuint *mgaAllocDmaLow( mgaContextPtr mmesa, int bytes )
+{
+   GLuint *head;
+
+   if (!mmesa->vertex_dma_buffer) {
+      LOCK_HARDWARE( mmesa );
+      mmesa->vertex_dma_buffer = mga_get_buffer_ioctl( mmesa );
+      UNLOCK_HARDWARE( mmesa );
+   } else if (mmesa->vertex_dma_buffer->used + bytes >
+	      mmesa->vertex_dma_buffer->total) {
+      LOCK_HARDWARE( mmesa );
+      mgaFlushVerticesLocked( mmesa );
+      mmesa->vertex_dma_buffer = mga_get_buffer_ioctl( mmesa );
+      UNLOCK_HARDWARE( mmesa );
+   }
+
+   head = (GLuint *)((char *)mmesa->vertex_dma_buffer->address +
+		      mmesa->vertex_dma_buffer->used);
+
+   mmesa->vertex_dma_buffer->used += bytes;
+   return head;
+}
+
+
+#define UPDATE_LOCK( mmesa, flags )					\
+do {									\
+   GLint ret = mgaFlushDMA( mmesa->driFd, flags );			\
+   if ( ret < 0 ) {							\
+      drmCommandNone( mmesa->driFd, DRM_MGA_RESET );			\
+      UNLOCK_HARDWARE( mmesa );						\
+      fprintf( stderr, "%s: flush ret=%d\n", __FUNCTION__, ret );	\
+      /*fprintf( stderr, "drmMGAFlushDMA: return = %d\n", ret );*/	\
+      exit( 1 );							\
+   }									\
+} while (0)
+
+#endif

src/mesa/drivers/dri/mga/mgapixel.c

@@ -0,0 +1,690 @@
+/*
+ * Copyright 2000 Compaq Computer Inc. and VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ *    Gareth Hughes <gareth@valinux.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgapixel.c,v 1.9 2002/11/05 17:46:08 tsi Exp $ */
+
+#include "enums.h"
+#include "mtypes.h"
+#include "macros.h"
+#include "texutil.h"
+#include "mgadd.h"
+#include "mgacontext.h"
+#include "mgaioctl.h"
+#include "mgapixel.h"
+#include "mgabuffers.h"
+
+#include "xf86drm.h"
+#include "mga_common.h"
+
+#include "swrast/swrast.h"
+
+#define IS_AGP_MEM( mmesa, p )						  \
+   ((unsigned long)mmesa->mgaScreen->buffers.map <= ((unsigned long)p) && \
+    (unsigned long)mmesa->mgaScreen->buffers.map +			  \
+    (unsigned long)mmesa->mgaScreen->buffers.size > ((unsigned long)p))
+#define AGP_OFFSET( mmesa, p )						  \
+     (((unsigned long)p) - (unsigned long)mmesa->mgaScreen->buffers.map)
+
+
+#if defined(MESA_packed_depth_stencil)
+static GLboolean
+check_depth_stencil_24_8( const GLcontext *ctx, GLenum type,
+			  const struct gl_pixelstore_attrib *packing,
+			  const void *pixels, GLint sz,
+			  GLint pitch )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   return ( type == GL_UNSIGNED_INT_24_8_MESA &&
+	    ctx->Visual->DepthBits == 24 &&
+	    ctx->Visual->StencilBits == 8 &&
+	    mmesa->mgaScreen->cpp == 4 &&
+	    mmesa->hw_stencil &&
+	    !ctx->Pixel.IndexShift &&
+	    !ctx->Pixel.IndexOffset &&
+	    !ctx->Pixel.MapStencilFlag &&
+	    ctx->Pixel.DepthBias == 0.0 &&
+	    ctx->Pixel.DepthScale == 1.0 &&
+	    !packing->SwapBytes &&
+	    pitch % 32 == 0 &&
+	    pitch < 4096 );
+}
+#endif
+
+
+static GLboolean
+check_depth( const GLcontext *ctx, GLenum type,
+	     const struct gl_pixelstore_attrib *packing,
+	     const void *pixels, GLint sz, GLint pitch )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   if ( IS_AGP_MEM( mmesa, pixels ) &&
+	!( ( type == GL_UNSIGNED_INT && mmesa->mgaScreen->cpp == 4 ) ||
+	   ( type == GL_UNSIGNED_SHORT && mmesa->mgaScreen->cpp == 2 ) ) )
+      return GL_FALSE;
+
+   return ( ctx->Pixel.DepthBias == 0.0 &&
+	    ctx->Pixel.DepthScale == 1.0 &&
+	    !packing->SwapBytes &&
+	    pitch % 32 == 0 &&
+	    pitch < 4096 );
+}
+
+
+static GLboolean
+check_color( const GLcontext *ctx, GLenum type, GLenum format,
+	     const struct gl_pixelstore_attrib *packing,
+	     const void *pixels, GLint sz, GLint pitch )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLuint cpp = mmesa->mgaScreen->cpp;
+
+   /* Can't do conversions on agp reads/draws.
+    */
+   if ( IS_AGP_MEM( mmesa, pixels ) &&
+	!( pitch % 32 == 0 && pitch < 4096 &&
+	   ( ( type == GL_UNSIGNED_BYTE &&
+	       cpp == 4 && format == GL_BGRA ) ||
+	     ( type == GL_UNSIGNED_INT_8_8_8_8 &&
+	       cpp == 4 && format == GL_BGRA ) ||
+	     ( type == GL_UNSIGNED_SHORT_5_6_5_REV &&
+	       cpp == 2 && format == GL_RGB ) ) ) )
+      return GL_FALSE;
+
+   return (!ctx->_ImageTransferState &&
+	   !packing->SwapBytes &&
+	   !packing->LsbFirst);
+}
+
+static GLboolean
+check_color_per_fragment_ops( const GLcontext *ctx )
+{
+   return (!(       ctx->Color.AlphaEnabled ||
+		    ctx->Depth.Test ||
+		    ctx->Fog.Enabled ||
+		    ctx->Scissor.Enabled ||
+		    ctx->Stencil.Enabled ||
+		    !ctx->Color.ColorMask[0] ||
+		    !ctx->Color.ColorMask[1] ||
+		    !ctx->Color.ColorMask[2] ||
+		    !ctx->Color.ColorMask[3] ||
+		    ctx->Color.ColorLogicOpEnabled ||
+		    ctx->Texture.Unit[0]._ReallyEnabled ||
+		    ctx->Depth.OcclusionTest
+           ) &&
+	   ctx->Current.RasterPosValid &&
+	   ctx->Pixel.ZoomX == 1.0F &&
+	   (ctx->Pixel.ZoomY == 1.0F || ctx->Pixel.ZoomY == -1.0F));
+}
+
+static GLboolean
+check_depth_per_fragment_ops( const GLcontext *ctx )
+{
+   return ( ctx->Current.RasterPosValid &&
+	    ctx->Color.ColorMask[RCOMP] == 0 &&
+	    ctx->Color.ColorMask[BCOMP] == 0 &&
+	    ctx->Color.ColorMask[GCOMP] == 0 &&
+	    ctx->Color.ColorMask[ACOMP] == 0 &&
+	    ctx->Pixel.ZoomX == 1.0F &&
+	    ( ctx->Pixel.ZoomY == 1.0F || ctx->Pixel.ZoomY == -1.0F ) );
+}
+
+/* In addition to the requirements for depth:
+ */
+#if defined(MESA_packed_depth_stencil)
+static GLboolean
+check_stencil_per_fragment_ops( const GLcontext *ctx )
+{
+   return ( !ctx->Pixel.IndexShift &&
+	    !ctx->Pixel.IndexOffset );
+}
+#endif
+
+
+static GLboolean
+clip_pixelrect( const GLcontext *ctx,
+		const GLframebuffer *buffer,
+		GLint *x, GLint *y,
+		GLsizei *width, GLsizei *height,
+		GLint *skipPixels, GLint *skipRows,
+		GLint *size )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   *width = MIN2(*width, MAX_WIDTH); /* redundant? */
+
+   /* left clipping */
+   if (*x < buffer->_Xmin) {
+      *skipPixels += (buffer->_Xmin - *x);
+      *width -= (buffer->_Xmin - *x);
+      *x = buffer->_Xmin;
+   }
+
+   /* right clipping */
+   if (*x + *width > buffer->_Xmax)
+      *width -= (*x + *width - buffer->_Xmax - 1);
+
+   if (*width <= 0)
+      return GL_FALSE;
+
+   /* bottom clipping */
+   if (*y < buffer->_Ymin) {
+      *skipRows += (buffer->_Ymin - *y);
+      *height -= (buffer->_Ymin - *y);
+      *y = buffer->_Ymin;
+   }
+
+   /* top clipping */
+   if (*y + *height > buffer->_Ymax)
+      *height -= (*y + *height - buffer->_Ymax - 1);
+
+   if (*height <= 0)
+      return GL_FALSE;
+
+   *size = ((*y + *height - 1) * mmesa->mgaScreen->frontPitch +
+	    (*x + *width - 1) * mmesa->mgaScreen->cpp);
+
+   return GL_TRUE;
+}
+
+static GLboolean
+mgaTryReadPixels( GLcontext *ctx,
+		  GLint x, GLint y, GLsizei width, GLsizei height,
+		  GLenum format, GLenum type,
+		  const struct gl_pixelstore_attrib *pack,
+		  GLvoid *pixels )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLint size, skipPixels, skipRows;
+   GLint pitch = pack->RowLength ? pack->RowLength : width;
+   GLboolean ok;
+
+   GLuint planemask;
+   GLuint source;
+#if 0
+   drmMGABlit blit;
+   GLuint dest;
+   GLint source_pitch, dest_pitch;
+   GLint delta_sx, delta_sy;
+   GLint delta_dx, delta_dy;
+   GLint blit_height, ydir;
+#endif
+
+   if (!clip_pixelrect(ctx, ctx->ReadBuffer,
+		       &x, &y, &width, &height,
+		       &skipPixels, &skipRows, &size)) {
+      return GL_TRUE;
+   }
+
+   /* Only accelerate reading to agp buffers.
+    */
+   if ( !IS_AGP_MEM(mmesa, (char *)pixels) ||
+	!IS_AGP_MEM(mmesa, (char *)pixels + size) )
+      return GL_FALSE;
+
+   switch (format) {
+#if defined(MESA_packed_depth_stencil)
+   case GL_DEPTH_STENCIL_MESA:
+      ok = check_depth_stencil_24_8(ctx, type, pack, pixels, size, pitch);
+      planemask = ~0;
+      source = mmesa->mgaScreen->depthOffset;
+      break;
+#endif
+
+   case GL_DEPTH_COMPONENT:
+      ok = check_depth(ctx, type, pack, pixels, size, pitch);
+
+      /* Can't accelerate at this depth -- planemask does the wrong
+       * thing; it doesn't clear the low order bits in the
+       * destination, instead it leaves them untouched.
+       *
+       * Could get the acclerator to solid fill the destination with
+       * zeros first...  Or get the cpu to do it...
+       */
+      if (ctx->Visual.depthBits == 24)
+	 return GL_FALSE;
+
+      planemask = ~0;
+      source = mmesa->mgaScreen->depthOffset;
+      break;
+
+   case GL_RGB:
+   case GL_BGRA:
+      ok = check_color(ctx, type, format, pack, pixels, size, pitch);
+      planemask = ~0;
+      source = (mmesa->draw_buffer == MGA_FRONT ?
+		mmesa->mgaScreen->frontOffset :
+		mmesa->mgaScreen->backOffset);
+      break;
+
+   default:
+      return GL_FALSE;
+   }
+
+   if (!ok) {
+      return GL_FALSE;
+   }
+
+
+   LOCK_HARDWARE( mmesa );
+
+#if 0
+   {
+      __DRIdrawablePrivate *dPriv = mmesa->driDrawable;
+      int nbox, retcode, i;
+
+      UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
+
+      if (mmesa->dirty_cliprects & MGA_FRONT)
+	 mgaUpdateRects( mmesa, MGA_FRONT );
+
+      nbox = dPriv->numClipRects;
+
+      y = dPriv->h - y - height;
+      x += mmesa->drawX;
+      y += mmesa->drawY;
+
+      dest = ((mmesa->mgaScreen->agp.handle + AGP_OFFSET(mmesa, pixels)) |
+	      DO_dstmap_sys | DO_dstacc_agp);
+      source_pitch = mmesa->mgaScreen->frontPitch / mmesa->mgaScreen->cpp;
+      dest_pitch = pitch;
+      delta_sx = 0;
+      delta_sy = 0;
+      delta_dx = -x;
+      delta_dy = -y;
+      blit_height = 2*y + height;
+      ydir = -1;
+
+      if (0) fprintf(stderr, "XX doing readpixel blit src_pitch %d dst_pitch %d\n",
+		     source_pitch, dest_pitch);
+
+
+
+      for (i = 0 ; i < nbox ; )
+      {
+	 int nr = MIN2(i + MGA_NR_SAREA_CLIPRECTS, dPriv->numClipRects);
+	 XF86DRIClipRectRec *box = dPriv->pClipRects;
+	 drm_clip_rect_t *b = mmesa->sarea->boxes;
+	 int n = 0;
+
+	 for ( ; i < nr ; i++) {
+	    GLint bx = box[i].x1;
+	    GLint by = box[i].y1;
+	    GLint bw = box[i].x2 - bx;
+	    GLint bh = box[i].y2 - by;
+
+	    if (bx < x) bw -= x - bx, bx = x;
+	    if (by < y) bh -= y - by, by = y;
+	    if (bx + bw > x + width) bw = x + width - bx;
+	    if (by + bh > y + height) bh = y + height - by;
+	    if (bw <= 0) continue;
+	    if (bh <= 0) continue;
+
+	    b->x1 = bx;
+	    b->y1 = by;
+	    b->x2 = bx + bw;
+	    b->y2 = by + bh;
+	    b++;
+	    n++;
+	 }
+
+	 mmesa->sarea->nbox = n;
+
+	 if (n && (retcode = drmCommandWrite( mmesa->driFd, DRM_MGA_BLIT,
+                                              &blit, sizeof(drmMGABlit)))) {
+	    fprintf(stderr, "blit ioctl failed, retcode = %d\n", retcode);
+	    UNLOCK_HARDWARE( mmesa );
+	    exit(1);
+	 }
+      }
+
+      UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
+   }
+#endif
+
+   UNLOCK_HARDWARE( mmesa );
+
+   return GL_TRUE;
+}
+
+static void
+mgaDDReadPixels( GLcontext *ctx,
+		 GLint x, GLint y, GLsizei width, GLsizei height,
+		 GLenum format, GLenum type,
+		 const struct gl_pixelstore_attrib *pack,
+		 GLvoid *pixels )
+{
+   if (!mgaTryReadPixels( ctx, x, y, width, height, format, type, pack, pixels))
+      _swrast_ReadPixels( ctx, x, y, width, height, format, type, pack, pixels);
+}
+
+
+
+
+static void do_draw_pix( GLcontext *ctx,
+			 GLint x, GLint y, GLsizei width, GLsizei height,
+			 GLint pitch,
+			 const void *pixels,
+			 GLuint dest, GLuint planemask)
+{
+#if 0
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   drmMGABlit blit;
+   __DRIdrawablePrivate *dPriv = mmesa->driDrawable;
+   XF86DRIClipRectPtr pbox = dPriv->pClipRects;
+   int nbox = dPriv->numClipRects;
+   int retcode, i;
+
+   y = dPriv->h - y - height;
+   x += mmesa->drawX;
+   y += mmesa->drawY;
+
+   blit.dest = dest;
+   blit.planemask = planemask;
+   blit.source = ((mmesa->mgaScreen->agp.handle + AGP_OFFSET(mmesa, pixels))
+		  | SO_srcmap_sys | SO_srcacc_agp);
+   blit.dest_pitch = mmesa->mgaScreen->frontPitch / mmesa->mgaScreen->cpp;
+   blit.source_pitch = pitch;
+   blit.delta_sx = -x;
+   blit.delta_sy = -y;
+   blit.delta_dx = 0;
+   blit.delta_dy = 0;
+   if (ctx->Pixel.ZoomY == -1) {
+      blit.height = height;
+      blit.ydir = 1;
+   } else {
+      blit.height = height;
+      blit.ydir = -1;
+   }
+
+   if (0) fprintf(stderr,
+		  "doing drawpixel blit src_pitch %d dst_pitch %d\n",
+		  blit.source_pitch, blit.dest_pitch);
+
+   for (i = 0 ; i < nbox ; )
+   {
+      int nr = MIN2(i + MGA_NR_SAREA_CLIPRECTS, dPriv->numClipRects);
+      XF86DRIClipRectRec *box = mmesa->pClipRects;
+      drm_clip_rect_t *b = mmesa->sarea->boxes;
+      int n = 0;
+
+      for ( ; i < nr ; i++) {
+	 GLint bx = box[i].x1;
+	 GLint by = box[i].y1;
+	 GLint bw = box[i].x2 - bx;
+	 GLint bh = box[i].y2 - by;
+
+	 if (bx < x) bw -= x - bx, bx = x;
+	 if (by < y) bh -= y - by, by = y;
+	 if (bx + bw > x + width) bw = x + width - bx;
+	 if (by + bh > y + height) bh = y + height - by;
+	 if (bw <= 0) continue;
+	 if (bh <= 0) continue;
+
+	 b->x1 = bx;
+	 b->y1 = by;
+	 b->x2 = bx + bw;
+	 b->y2 = by + bh;
+	 b++;
+	 n++;
+      }
+
+      mmesa->sarea->nbox = n;
+
+      if (n && (retcode = drmCommandWrite( mmesa->driFd, DRM_MGA_BLIT,
+                                              &blit, sizeof(drmMGABlit)))) {
+	 fprintf(stderr, "blit ioctl failed, retcode = %d\n", retcode);
+	 UNLOCK_HARDWARE( mmesa );
+	 exit(1);
+      }
+   }
+#endif
+}
+
+
+
+
+static GLboolean
+mgaTryDrawPixels( GLcontext *ctx,
+		  GLint x, GLint y, GLsizei width, GLsizei height,
+		  GLenum format, GLenum type,
+		  const struct gl_pixelstore_attrib *unpack,
+		  const GLvoid *pixels )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLint size, skipPixels, skipRows;
+   GLint pitch = unpack->RowLength ? unpack->RowLength : width;
+   GLuint dest, planemask;
+   GLuint cpp = mmesa->mgaScreen->cpp;
+
+   if (!clip_pixelrect(ctx, ctx->DrawBuffer,
+		       &x, &y, &width, &height,
+		       &skipPixels, &skipRows, &size)) {
+      return GL_TRUE;
+   }
+
+
+   switch (format) {
+#if defined(MESA_packed_depth_stencil)
+   case GL_DEPTH_STENCIL_MESA:
+      dest = mmesa->mgaScreen->depthOffset;
+      planemask = ~0;
+      if (!check_depth_stencil_24_8(ctx, type, unpack, pixels, size, pitch) ||
+	  !check_depth_per_fragment_ops(ctx) ||
+	  !check_stencil_per_fragment_ops(ctx))
+	 return GL_FALSE;
+      break;
+#endif
+
+   case GL_DEPTH_COMPONENT:
+      dest = mmesa->mgaScreen->depthOffset;
+
+      if (ctx->Visual.depthBits == 24)
+	 planemask = ~0xff;
+      else
+	 planemask = ~0;
+
+      if (!check_depth(ctx, type, unpack, pixels, size, pitch) ||
+	  !check_depth_per_fragment_ops(ctx))
+	 return GL_FALSE;
+      break;
+
+   case GL_RGB:
+   case GL_BGRA:
+      dest = (mmesa->draw_buffer == MGA_FRONT ?
+	      mmesa->mgaScreen->frontOffset :
+	      mmesa->mgaScreen->backOffset);
+
+      planemask = mgaPackColor(cpp,
+			       ctx->Color.ColorMask[RCOMP],
+			       ctx->Color.ColorMask[GCOMP],
+			       ctx->Color.ColorMask[BCOMP],
+			       ctx->Color.ColorMask[ACOMP]);
+
+      if (cpp == 2)
+	 planemask |= planemask << 16;
+
+      if (!check_color(ctx, type, format, unpack, pixels, size, pitch)) {
+	 return GL_FALSE;
+      }
+      if (!check_color_per_fragment_ops(ctx)) {
+	 return GL_FALSE;
+      }
+      break;
+
+   default:
+      return GL_FALSE;
+   }
+
+   LOCK_HARDWARE_QUIESCENT( mmesa );
+
+   if (mmesa->dirty_cliprects & MGA_FRONT)
+      mgaUpdateRects( mmesa, MGA_FRONT );
+
+   if ( IS_AGP_MEM(mmesa, (char *)pixels) &&
+	IS_AGP_MEM(mmesa, (char *)pixels + size) )
+   {
+      do_draw_pix( ctx, x, y, width, height, pitch, pixels,
+		   dest, planemask );
+      UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
+   }
+   else
+   {
+      /* Pixels is in regular memory -- get dma buffers and perform
+       * upload through them.
+       */
+/*        drmBufPtr buf = mgaGetBufferLocked(mmesa); */
+      GLuint bufferpitch = (width*cpp+31)&~31;
+
+      char *address = 0; /*  mmesa->mgaScreen->agp.map; */
+
+      do {
+/*  	 GLuint rows = MIN2( height, MGA_DMA_BUF_SZ / bufferpitch ); */
+	 GLuint rows = height;
+
+
+	 if (0) fprintf(stderr, "trying to upload %d rows (pitch %d)\n",
+			rows, bufferpitch);
+
+	 /* The texture conversion code is so slow that there is only
+	  * negligble speedup when the buffers/images don't exactly
+	  * match:
+	  */
+#if 0
+	 if (cpp == 2) {
+	    if (!_mesa_convert_texsubimage2d( MESA_FORMAT_RGB565,
+					      0, 0, width, rows,
+					      bufferpitch, format, type,
+					      unpack, pixels, address )) {
+/*  	       mgaReleaseBufLocked( mmesa, buf ); */
+	       UNLOCK_HARDWARE(mmesa);
+	       return GL_FALSE;
+	    }
+	 } else {
+	    if (!_mesa_convert_texsubimage2d( MESA_FORMAT_ARGB8888,
+					      0, 0, width, rows,
+					      bufferpitch, format, type,
+					      unpack, pixels, address )) {
+/*  	       mgaReleaseBufLocked( mmesa, buf ); */
+	       UNLOCK_HARDWARE(mmesa);
+	       return GL_FALSE;
+	    }
+	 }
+#else
+	 memcpy( address, pixels, rows*bufferpitch );
+#endif
+
+	 do_draw_pix( ctx, x, y, width, rows,
+		      bufferpitch/cpp, address, dest, planemask );
+
+	 /* Fix me -- use multiple buffers to avoid flush.
+	  */
+	 UPDATE_LOCK( mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT );
+
+	 pixels = (void *)((char *) pixels + rows * pitch);
+	 height -= rows;
+	 y += rows;
+      } while (height);
+
+/*        mgaReleaseBufLocked( mmesa, buf ); */
+   }
+
+   UNLOCK_HARDWARE( mmesa );
+   mmesa->dirty |= MGA_UPLOAD_CLIPRECTS;
+
+   return GL_TRUE;
+}
+
+static void
+mgaDDDrawPixels( GLcontext *ctx,
+		 GLint x, GLint y, GLsizei width, GLsizei height,
+		 GLenum format, GLenum type,
+		 const struct gl_pixelstore_attrib *unpack,
+		 const GLvoid *pixels )
+{
+   if (!mgaTryDrawPixels( ctx, x, y, width, height, format, type,
+			  unpack, pixels ))
+      _swrast_DrawPixels( ctx, x, y, width, height, format, type,
+			  unpack, pixels );
+}
+
+
+
+/* Stub functions - not a real allocator, always returns pointer to
+ * the same block of agp space which isn't used for anything else at
+ * present.
+ */
+#if defined(MESA_hacked_agp_allocator)
+static void mgaDDFreeAgpMemory( GLcontext *ctx, void *ptr )
+{
+   (void) ptr;
+}
+
+static void *mgaDDAllocateAgpMemory( GLcontext *ctx, GLsizei size )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   if (size < mmesa->mgaScreen->textureSize[MGA_AGP_HEAP])
+      return mmesa->mgaScreen->texVirtual[MGA_AGP_HEAP];
+   else
+      return 0;
+}
+
+static GLint mgaDDGetAgpOffset( GLcontext *ctx, const void *ptr )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   if (!IS_AGP_MEM(mmesa, ptr))
+      return -1;
+
+   return AGP_OFFSET(mmesa, ptr);
+}
+#endif
+
+
+void mgaDDInitPixelFuncs( GLcontext *ctx )
+{
+#if defined (MESA_experimetal_agp_allocator)
+   ctx->Driver.AllocateAgpMemory = mgaDDAllocateAgpMemory;
+   ctx->Driver.GetAgpOffset = mgaDDGetAgpOffset;
+   ctx->Driver.FreeAgpMemory = mgaDDFreeAgpMemory;
+#endif
+
+   /* Pixel path fallbacks.
+    */
+   ctx->Driver.Accum = _swrast_Accum;
+   ctx->Driver.Bitmap = _swrast_Bitmap;
+   ctx->Driver.CopyPixels = _swrast_CopyPixels;
+   ctx->Driver.DrawPixels = _swrast_DrawPixels;
+   ctx->Driver.ReadPixels = _swrast_ReadPixels;
+
+   if (getenv("MGA_BLIT_PIXELS")) {
+      ctx->Driver.ReadPixels = mgaDDReadPixels; /* requires agp dest */
+      ctx->Driver.DrawPixels = mgaDDDrawPixels; /* works with agp/normal mem */
+   }
+}

src/mesa/drivers/dri/mga/mgapixel.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2000-2001 Compaq Computer Inc. VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgapixel.h,v 1.5 2002/10/30 12:51:36 alanh Exp $ */
+
+#ifndef MGA_PIXELS_H
+#define MGA_PIXELS_H
+
+#include "mtypes.h"
+
+extern void mgaDDInitPixelFuncs( GLcontext *ctx );
+
+#endif

src/mesa/drivers/dri/mga/mgarender.c

@@ -0,0 +1,208 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgarender.c,v 1.4 2002/10/30 12:51:36 alanh Exp $ */
+/**************************************************************************
+
+Copyright 2000, 2001 ATI Technologies Inc., Ontario, Canada, and
+                     VA Linux Systems Inc., Fremont, California.
+
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, and/or sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ATI, VA LINUX SYSTEMS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+
+/*
+ * Authors:
+ *   Keith Whitwell <keith@tungstengraphics.com>
+ *
+ */
+
+
+/*
+ * Render unclipped vertex buffers by emitting vertices directly to
+ * dma buffers.  Use strip/fan hardware primitives where possible.
+ * Simulate missing primitives with indexed vertices.
+ */
+#include "glheader.h"
+#include "context.h"
+#include "macros.h"
+//#include "mem.h"
+#include "mtypes.h"
+#include "mmath.h"
+
+#include "tnl/t_context.h"
+
+#include "mgacontext.h"
+#include "mgatris.h"
+#include "mgastate.h"
+#include "mgaioctl.h"
+#include "mgavb.h"
+
+#define HAVE_POINTS      0
+#define HAVE_LINES       0
+#define HAVE_LINE_STRIPS 0
+#define HAVE_TRIANGLES   1
+#define HAVE_TRI_STRIPS  1
+#define HAVE_TRI_STRIP_1 0
+#define HAVE_TRI_FANS    1
+#define HAVE_POLYGONS    0
+#define HAVE_QUADS       0
+#define HAVE_QUAD_STRIPS 0
+
+#define HAVE_ELTS        0	/* for now */
+
+static void mgaDmaPrimitive( GLcontext *ctx, GLenum prim )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLuint hwprim;
+
+   switch (prim) {
+   case GL_TRIANGLES:
+      hwprim = MGA_WA_TRIANGLES;
+      break;
+   case GL_TRIANGLE_STRIP:
+      if (mmesa->vertex_size == 8)
+	 hwprim = MGA_WA_TRISTRIP_T0;
+      else
+	 hwprim = MGA_WA_TRISTRIP_T0T1;
+      break;
+   case GL_TRIANGLE_FAN:
+      if (mmesa->vertex_size == 8)
+	 hwprim = MGA_WA_TRIFAN_T0;
+      else
+	 hwprim = MGA_WA_TRIFAN_T0T1;
+      break;
+   default:
+      return;
+   }
+
+   mgaRasterPrimitive( ctx, GL_TRIANGLES, hwprim );
+}
+
+static void VERT_FALLBACK( GLcontext *ctx, GLuint start, GLuint count, 
+			   GLuint flags )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   tnl->Driver.Render.PrimitiveNotify( ctx, flags & PRIM_MODE_MASK );
+   tnl->Driver.Render.BuildVertices( ctx, start, count, ~0 );
+   tnl->Driver.Render.PrimTabVerts[flags&PRIM_MODE_MASK]( ctx, start, count, flags );
+   MGA_CONTEXT(ctx)->SetupNewInputs |= VERT_BIT_CLIP;
+}
+
+#define LOCAL_VARS mgaContextPtr mmesa = MGA_CONTEXT(ctx) 
+#define INIT( prim ) do {			\
+   if (0) fprintf(stderr, "%s\n", __FUNCTION__);	\
+   FLUSH_BATCH(mmesa);				\
+   mgaDmaPrimitive( ctx, prim );		\
+} while (0)
+#define NEW_PRIMITIVE()  FLUSH_BATCH( mmesa )
+#define NEW_BUFFER()  FLUSH_BATCH( mmesa )
+#define GET_CURRENT_VB_MAX_VERTS() \
+   0 /* fix me */
+#define GET_SUBSEQUENT_VB_MAX_VERTS() \
+   MGA_BUFFER_SIZE / (mmesa->vertex_size * 4)
+#define EMIT_VERTS( ctx, j, nr ) \
+   mga_emit_contiguous_verts(ctx, j, (j)+(nr))
+
+ 
+#define TAG(x) mga_##x
+#include "tnl_dd/t_dd_dmatmp.h"
+
+
+
+/**********************************************************************/
+/*                          Render pipeline stage                     */
+/**********************************************************************/
+
+
+static GLboolean mga_run_render( GLcontext *ctx,
+				  struct gl_pipeline_stage *stage )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   struct vertex_buffer *VB = &tnl->vb; 
+   GLuint i, length, flags = 0;
+
+   /* Don't handle clipping or indexed vertices or vertex manipulations.
+    */
+   if (VB->ClipOrMask || mmesa->RenderIndex != 0 || VB->Elts) {
+      return GL_TRUE;
+   }
+   
+   tnl->Driver.Render.Start( ctx );
+   mmesa->SetupNewInputs = ~0;      
+
+   for (i = VB->FirstPrimitive ; !(flags & PRIM_LAST) ; i += length)
+   {
+      flags = VB->Primitive[i];
+      length= VB->PrimitiveLength[i];	
+      if (length)
+	 mga_render_tab_verts[flags & PRIM_MODE_MASK]( ctx, i, i + length,
+						       flags );
+   } 
+
+   tnl->Driver.Render.Finish( ctx );
+
+   return GL_FALSE;		/* finished the pipe */
+}
+
+
+static void mga_check_render( GLcontext *ctx, struct gl_pipeline_stage *stage )
+{
+   GLuint inputs = VERT_BIT_POS | VERT_BIT_CLIP | VERT_BIT_COLOR0;
+
+   if (ctx->RenderMode == GL_RENDER) {
+      if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR) 
+	 inputs |= VERT_BIT_COLOR1;
+
+      if (ctx->Texture.Unit[0]._ReallyEnabled)
+	 inputs |= VERT_BIT_TEX0;
+
+      if (ctx->Texture.Unit[1]._ReallyEnabled)
+	 inputs |= VERT_BIT_TEX1;
+
+      if (ctx->Fog.Enabled) 
+	 inputs |= VERT_BIT_FOG;
+   }
+
+   stage->inputs = inputs;
+}
+
+
+static void dtr( struct gl_pipeline_stage *stage )
+{
+   (void)stage;
+}
+
+
+const struct gl_pipeline_stage _mga_render_stage = 
+{ 
+   "mga render",
+   (_DD_NEW_SEPARATE_SPECULAR |
+    _NEW_TEXTURE|
+    _NEW_FOG|
+    _NEW_RENDERMODE),		/* re-check (new inputs) */
+   0,				/* re-run (always runs) */
+   GL_TRUE,			/* active */
+   0, 0,			/* inputs (set in check_render), outputs */
+   0, 0,			/* changed_inputs, private */
+   dtr,				/* destructor */
+   mga_check_render,		/* check - initially set to alloc data */
+   mga_run_render		/* run */
+};

src/mesa/drivers/dri/mga/mgaspan.c

@@ -0,0 +1,284 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgaspan.c,v 1.11 2002/10/30 12:51:36 alanh Exp $ */
+
+#include "mtypes.h"
+#include "mgadd.h"
+#include "mgacontext.h"
+#include "mgaspan.h"
+#include "mgaioctl.h"
+#include "swrast/swrast.h"
+
+#define DBG 0
+
+
+#define LOCAL_VARS					\
+   __DRIdrawablePrivate *dPriv = mmesa->driDrawable;	\
+   mgaScreenPrivate *mgaScreen = mmesa->mgaScreen;	\
+   __DRIscreenPrivate *sPriv = mmesa->driScreen;	\
+   GLuint pitch = mgaScreen->frontPitch;		\
+   GLuint height = dPriv->h;				\
+   char *read_buf = (char *)(sPriv->pFB +		\
+			mmesa->readOffset +		\
+			dPriv->x * mgaScreen->cpp +	\
+			dPriv->y * pitch);		\
+   char *buf = (char *)(sPriv->pFB +			\
+			mmesa->drawOffset +		\
+			dPriv->x * mgaScreen->cpp +	\
+			dPriv->y * pitch);		\
+   GLuint p;						\
+   (void) read_buf; (void) buf; (void) p
+   
+
+
+#define LOCAL_DEPTH_VARS						\
+   __DRIdrawablePrivate *dPriv = mmesa->driDrawable;			\
+   mgaScreenPrivate *mgaScreen = mmesa->mgaScreen;			\
+   __DRIscreenPrivate *sPriv = mmesa->driScreen;			\
+   GLuint pitch = mgaScreen->frontPitch;				\
+   GLuint height = dPriv->h;						\
+   char *buf = (char *)(sPriv->pFB +					\
+			mgaScreen->depthOffset +			\
+			dPriv->x * mgaScreen->cpp +			\
+			dPriv->y * pitch)
+
+#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS 
+
+#define CLIPPIXEL(_x,_y) (_x >= minx && _x < maxx && \
+			  _y >= miny && _y < maxy)
+
+#define CLIPSPAN( _x, _y, _n, _x1, _n1, _i )				\
+   if ( _y < miny || _y >= maxy ) {					\
+      _n1 = 0, _x1 = x;							\
+   } else {								\
+      _n1 = _n;								\
+      _x1 = _x;								\
+      if ( _x1 < minx ) _i += (minx-_x1), n1 -= (minx-_x1), _x1 = minx; \
+      if ( _x1 + _n1 >= maxx ) n1 -= (_x1 + n1 - maxx);		        \
+   }
+
+
+#define HW_LOCK()				\
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);	\
+   FLUSH_BATCH(mmesa);				\
+   LOCK_HARDWARE_QUIESCENT(mmesa);
+
+
+#define HW_CLIPLOOP()						\
+  do {								\
+    int _nc = mmesa->numClipRects;				\
+    while (_nc--) {						\
+       int minx = mmesa->pClipRects[_nc].x1 - mmesa->drawX;	\
+       int miny = mmesa->pClipRects[_nc].y1 - mmesa->drawY;	\
+       int maxx = mmesa->pClipRects[_nc].x2 - mmesa->drawX;	\
+       int maxy = mmesa->pClipRects[_nc].y2 - mmesa->drawY;
+
+#define HW_ENDCLIPLOOP()			\
+    }						\
+  } while (0)
+
+#define HW_UNLOCK()				\
+    UNLOCK_HARDWARE(mmesa);
+
+
+
+
+
+
+
+/* 16 bit, 565 rgb color spanline and pixel functions
+ */
+#define Y_FLIP(_y) (height - _y - 1)
+
+#undef INIT_MONO_PIXEL
+#define INIT_MONO_PIXEL(p, color) \
+  p = MGAPACKCOLOR565( color[0], color[1], color[2] )
+
+
+#define WRITE_RGBA( _x, _y, r, g, b, a )				\
+   *(GLushort *)(buf + _x*2 + _y*pitch)  = ( (((int)r & 0xf8) << 8) |	\
+		                             (((int)g & 0xfc) << 3) |	\
+		                             (((int)b & 0xf8) >> 3))
+
+#define WRITE_PIXEL( _x, _y, p )  \
+   *(GLushort *)(buf + _x*2 + _y*pitch) = p
+
+#define READ_RGBA( rgba, _x, _y )				\
+do {								\
+   GLushort p = *(GLushort *)(read_buf + _x*2 + _y*pitch);	\
+   rgba[0] = (((p >> 11) & 0x1f) * 255) / 31;			\
+   rgba[1] = (((p >>  5) & 0x3f) * 255) / 63;			\
+   rgba[2] = (((p >>  0) & 0x1f) * 255) / 31;			\
+   rgba[3] = 255;						\
+} while(0)
+
+#define TAG(x) mga##x##_565
+#include "spantmp.h"
+
+
+
+
+
+/* 32 bit, 8888 argb color spanline and pixel functions
+ */
+
+#undef INIT_MONO_PIXEL
+#define INIT_MONO_PIXEL(p, color) \
+  p = MGAPACKCOLOR8888( color[0], color[1], color[2], color[3] )
+
+
+#define WRITE_RGBA(_x, _y, r, g, b, a)			\
+    *(GLuint *)(buf + _x*4 + _y*pitch) = ((r << 16) |	\
+					  (g << 8)  |	\
+					  (b << 0)  |	\
+					  (a << 24) )
+
+#define WRITE_PIXEL(_x, _y, p)			\
+    *(GLuint *)(buf + _x*4 + _y*pitch) = p
+
+#define READ_RGBA(rgba, _x, _y)					\
+    do {							\
+	GLuint p = *(GLuint *)(read_buf + _x*4 + _y*pitch);	\
+	rgba[0] = (p >> 16) & 0xff;				\
+	rgba[1] = (p >> 8)  & 0xff;				\
+	rgba[2] = (p >> 0)  & 0xff;				\
+	rgba[3] = 0xff;						\
+    } while (0)
+
+#define TAG(x) mga##x##_8888
+#include "spantmp.h"
+
+
+
+
+/* 16 bit depthbuffer functions.
+ */
+#define WRITE_DEPTH( _x, _y, d )	\
+   *(GLushort *)(buf + _x*2 + _y*pitch) = d;
+
+#define READ_DEPTH( d, _x, _y )		\
+   d = *(GLushort *)(buf + _x*2 + _y*pitch);
+
+#define TAG(x) mga##x##_16
+#include "depthtmp.h"
+
+
+
+
+/* 32 bit depthbuffer functions.
+ */
+#define WRITE_DEPTH( _x, _y, d )	\
+   *(GLuint *)(buf + _x*4 + _y*pitch) = d;
+
+#define READ_DEPTH( d, _x, _y )		\
+   d = *(GLuint *)(buf + _x*4 + _y*pitch);
+
+#define TAG(x) mga##x##_32
+#include "depthtmp.h"
+
+
+
+/* 24/8 bit interleaved depth/stencil functions
+ */
+#define WRITE_DEPTH( _x, _y, d ) {			\
+   GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch);	\
+   tmp &= 0xff;						\
+   tmp |= (d) << 8;					\
+   *(GLuint *)(buf + _x*4 + _y*pitch) = tmp;		\
+}
+
+#define READ_DEPTH( d, _x, _y )	{				\
+   d = (*(GLuint *)(buf + _x*4 + _y*pitch) & ~0xff) >> 8;	\
+}
+
+#define TAG(x) mga##x##_24_8
+#include "depthtmp.h"
+
+#define WRITE_STENCIL( _x, _y, d ) {			\
+   GLuint tmp = *(GLuint *)(buf + _x*4 + _y*pitch);	\
+   tmp &= 0xffffff00;					\
+   tmp |= d & 0xff;					\
+   *(GLuint *)(buf + _x*4 + _y*pitch) = tmp;		\
+}
+
+#define READ_STENCIL( d, _x, _y )		\
+   d = *(GLuint *)(buf + _x*4 + _y*pitch) & 0xff;
+
+#define TAG(x) mga##x##_24_8
+#include "stenciltmp.h"
+
+
+
+void mgaDDInitSpanFuncs( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
+
+   switch (mmesa->mgaScreen->cpp) {
+   case 2:
+      swdd->WriteRGBASpan = mgaWriteRGBASpan_565;
+      swdd->WriteRGBSpan = mgaWriteRGBSpan_565;
+      swdd->WriteMonoRGBASpan = mgaWriteMonoRGBASpan_565;
+      swdd->WriteRGBAPixels = mgaWriteRGBAPixels_565;
+      swdd->WriteMonoRGBAPixels = mgaWriteMonoRGBAPixels_565;
+      swdd->ReadRGBASpan = mgaReadRGBASpan_565;
+      swdd->ReadRGBAPixels = mgaReadRGBAPixels_565;
+
+      swdd->ReadDepthSpan = mgaReadDepthSpan_16;
+      swdd->WriteDepthSpan = mgaWriteDepthSpan_16;
+      swdd->ReadDepthPixels = mgaReadDepthPixels_16;
+      swdd->WriteDepthPixels = mgaWriteDepthPixels_16;
+      break;
+
+   case 4:
+      swdd->WriteRGBASpan = mgaWriteRGBASpan_8888;
+      swdd->WriteRGBSpan = mgaWriteRGBSpan_8888;
+      swdd->WriteMonoRGBASpan = mgaWriteMonoRGBASpan_8888;
+      swdd->WriteRGBAPixels = mgaWriteRGBAPixels_8888;
+      swdd->WriteMonoRGBAPixels = mgaWriteMonoRGBAPixels_8888;
+      swdd->ReadRGBASpan = mgaReadRGBASpan_8888;
+      swdd->ReadRGBAPixels = mgaReadRGBAPixels_8888;
+      
+      if (!mmesa->hw_stencil) {
+	 swdd->ReadDepthSpan = mgaReadDepthSpan_32;
+	 swdd->WriteDepthSpan = mgaWriteDepthSpan_32;
+	 swdd->ReadDepthPixels = mgaReadDepthPixels_32;
+	 swdd->WriteDepthPixels = mgaWriteDepthPixels_32;
+      } else {
+	 swdd->ReadDepthSpan = mgaReadDepthSpan_24_8;
+	 swdd->WriteDepthSpan = mgaWriteDepthSpan_24_8;
+	 swdd->ReadDepthPixels = mgaReadDepthPixels_24_8;
+	 swdd->WriteDepthPixels = mgaWriteDepthPixels_24_8;
+
+	 swdd->ReadStencilSpan = mgaReadStencilSpan_24_8;
+	 swdd->WriteStencilSpan = mgaWriteStencilSpan_24_8;
+	 swdd->ReadStencilPixels = mgaReadStencilPixels_24_8;
+	 swdd->WriteStencilPixels = mgaWriteStencilPixels_24_8;
+      }
+      break;
+   }
+}

src/mesa/drivers/dri/mga/mgaspan.h

@@ -0,0 +1,34 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgaspan.h,v 1.3 2002/10/30 12:51:36 alanh Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef _MGA_SPAN_H
+#define _MGA_SPAN_H
+
+extern void mgaDDInitSpanFuncs( GLcontext *ctx );
+
+#endif

src/mesa/drivers/dri/mga/mgastate.h

@@ -0,0 +1,42 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgastate.h,v 1.5 2002/10/30 12:51:36 alanh Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef _MGA_STATE_H
+#define _MGA_STATE_H
+
+
+extern void mgaInitState( mgaContextPtr mmesa );
+extern void mgaDDInitStateFuncs(GLcontext *ctx);
+extern void mgaDDUpdateHwState( GLcontext *ctx );
+extern void mgaUpdateClipping(const GLcontext *ctx);
+extern void mgaUpdateCull( GLcontext *ctx );
+extern void mgaCalcViewport( GLcontext *ctx );
+
+
+
+#endif

src/mesa/drivers/dri/mga/mgatex.c

@@ -0,0 +1,984 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatex.c,v 1.14 2002/10/30 12:51:36 alanh Exp $ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <GL/gl.h>
+
+#include "mm.h"
+#include "mgacontext.h"
+#include "mgatex.h"
+#include "mgaregs.h"
+#include "mgatris.h"
+#include "mgaioctl.h"
+
+#include "enums.h"
+#include "simple_list.h"
+//#include "mem.h"
+#include "macros.h"
+#include "texformat.h"
+#include "texstore.h"
+
+#include "swrast/swrast.h"
+
+#define TEX_0 1
+#define TEX_1 2
+
+/*
+ * mgaDestroyTexObj
+ * Free all memory associated with a texture and NULL any pointers
+ * to it.
+ */
+void
+mgaDestroyTexObj( mgaContextPtr mmesa, mgaTextureObjectPtr t )
+{
+   if ( !t ) return;
+
+   /* free the texture memory */
+   if (t->MemBlock) {
+      mmFreeMem( t->MemBlock );
+      t->MemBlock = 0;
+
+      if (mmesa && t->age > mmesa->dirtyAge)
+	 mmesa->dirtyAge = t->age;
+   }
+
+   /* free mesa's link */
+   if (t->tObj)
+      t->tObj->DriverData = NULL;
+
+   /* see if it was the driver's current object */
+   if (mmesa) {
+      if (t->bound & TEX_0) mmesa->CurrentTexObj[0] = 0;
+      if (t->bound & TEX_1) mmesa->CurrentTexObj[1] = 0;
+   }
+	
+   remove_from_list(t);
+   free( t );
+}
+
+
+/*
+ * mgaSetTexWrappings
+ */
+static void mgaSetTexWrapping( mgaTextureObjectPtr t,
+			       GLenum sWrap,
+			       GLenum tWrap )
+{
+   GLuint val = 0;
+
+   if (sWrap != GL_REPEAT)
+      val |= TMC_clampu_enable;
+
+   if (tWrap != GL_REPEAT)
+      val |= TMC_clampv_enable;
+
+   t->setup.texctl &= ~(TMC_clampu_enable|TMC_clampv_enable);
+   t->setup.texctl |= val;
+}
+
+
+/*
+ * mgaSetTexFilter
+ */
+static void mgaSetTexFilter(mgaTextureObjectPtr t, GLenum minf, GLenum magf)
+{
+   GLuint val = 0;
+
+   switch (minf) {
+   case GL_NEAREST: val = TF_minfilter_nrst; break;
+   case GL_LINEAR: val = TF_minfilter_bilin; break;
+   case GL_NEAREST_MIPMAP_NEAREST: val = TF_minfilter_mm1s; break;
+   case GL_LINEAR_MIPMAP_NEAREST: val = TF_minfilter_mm4s; break;
+   case GL_NEAREST_MIPMAP_LINEAR: val = TF_minfilter_mm2s; break;
+   case GL_LINEAR_MIPMAP_LINEAR: val = TF_minfilter_mm8s; break;
+   default: val = TF_minfilter_nrst; break;
+   }
+
+   switch (magf) {
+   case GL_NEAREST: val |= TF_magfilter_nrst; break;
+   case GL_LINEAR: val |= TF_magfilter_bilin; break;
+   default: val |= TF_magfilter_nrst; break;
+   }
+
+   /* See OpenGL 1.2 specification */
+   if (magf == GL_LINEAR && (minf == GL_NEAREST_MIPMAP_NEAREST ||
+			     minf == GL_NEAREST_MIPMAP_LINEAR)) {
+      val |= (0x20 << TF_fthres_SHIFT); /* c = 0.5 */
+   } else {
+      val |= (0x10 << TF_fthres_SHIFT); /* c = 0 */
+   }
+
+
+   t->setup.texfilter &= (TF_minfilter_MASK |
+			  TF_magfilter_MASK |
+			  TF_fthres_MASK);
+   t->setup.texfilter |= val;
+}
+
+/*
+ * mgaSetTexBorderColor
+ */
+static void mgaSetTexBorderColor(mgaTextureObjectPtr t, GLubyte color[4])
+{
+   t->setup.texbordercol = MGAPACKCOLOR8888(color[0],color[1],
+					    color[2],color[3]);
+}
+
+
+static GLint mgaChooseTexFormat( mgaContextPtr mmesa,
+				 struct gl_texture_image *texImage,
+				 GLenum format, GLenum type )
+{
+   const GLboolean do32bpt = mmesa->default32BitTextures;
+   const struct gl_texture_format *texFormat;
+   GLint ret;
+
+   if ( 0 )
+      fprintf( stderr, "internal=%s format=%s type=%s\n",
+	       texImage->IntFormat == 3 ? "GL_RGB (3)" :
+	       texImage->IntFormat == 4 ? "GL_RGBA (4)" :
+	       _mesa_lookup_enum_by_nr( texImage->IntFormat ),
+	       _mesa_lookup_enum_by_nr( format ),
+	       _mesa_lookup_enum_by_nr( type ) );
+
+#define SET_FORMAT( r, gl )						\
+   do {									\
+      ret = (r);							\
+      texFormat = &(gl);						\
+   } while (0)
+
+#define SET_FORMAT_32BPT( r32, gl32, r16, gl16 )			\
+   do {									\
+      if ( do32bpt ) {							\
+	 ret = (r32);							\
+	 texFormat = &(gl32);						\
+      } else {								\
+	 ret = (r16);							\
+	 texFormat = &(gl16);						\
+      }									\
+   } while (0)
+
+   switch ( texImage->IntFormat ) {
+      /* GH: Bias towards GL_RGB, GL_RGBA texture formats.  This has
+       * got to be better than sticking them way down the end of this
+       * huge list.
+       */
+   case 4:
+   case GL_RGBA:
+   case GL_COMPRESSED_RGBA:
+      if ( format == GL_BGRA ) {
+	 if ( type == GL_UNSIGNED_INT_8_8_8_8_REV ) {
+	    SET_FORMAT( TMC_tformat_tw32, _mesa_texformat_argb8888 );
+	    break;
+	 } else if ( type == GL_UNSIGNED_SHORT_4_4_4_4_REV ) {
+	    SET_FORMAT( TMC_tformat_tw12, _mesa_texformat_argb4444 );
+	    break;
+	 } else if ( type == GL_UNSIGNED_SHORT_1_5_5_5_REV ) {
+	    SET_FORMAT( TMC_tformat_tw15, _mesa_texformat_argb1555 );
+	    break;
+	 }
+      }
+      SET_FORMAT_32BPT( TMC_tformat_tw32, _mesa_texformat_argb8888,
+			TMC_tformat_tw12, _mesa_texformat_argb4444 );
+      break;
+
+   case 3:
+   case GL_RGB:
+   case GL_COMPRESSED_RGB:
+      if ( format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 ) {
+	 SET_FORMAT( TMC_tformat_tw16, _mesa_texformat_rgb565 );
+	 break;
+      }
+      SET_FORMAT_32BPT( TMC_tformat_tw32, _mesa_texformat_argb8888,
+			TMC_tformat_tw16, _mesa_texformat_rgb565 );
+      break;
+
+      /* GH: Okay, keep checking as normal.  Still test for GL_RGB,
+       * GL_RGBA formats first.
+       */
+   case GL_RGBA8:
+   case GL_RGB10_A2:
+   case GL_RGBA12:
+   case GL_RGBA16:
+      SET_FORMAT_32BPT( TMC_tformat_tw32, _mesa_texformat_argb8888,
+			TMC_tformat_tw12, _mesa_texformat_argb4444 );
+      break;
+
+   case GL_RGBA4:
+   case GL_RGBA2:
+      SET_FORMAT( TMC_tformat_tw12, _mesa_texformat_argb4444 );
+      break;
+
+   case GL_RGB5_A1:
+      SET_FORMAT( TMC_tformat_tw15, _mesa_texformat_argb1555 );
+      break;
+
+   case GL_RGB8:
+   case GL_RGB10:
+   case GL_RGB12:
+   case GL_RGB16:
+      SET_FORMAT_32BPT( TMC_tformat_tw32, _mesa_texformat_argb8888,
+			TMC_tformat_tw16, _mesa_texformat_rgb565 );
+      break;
+
+   case GL_RGB5:
+   case GL_RGB4:
+   case GL_R3_G3_B2:
+      SET_FORMAT( TMC_tformat_tw16, _mesa_texformat_rgb565 );
+      break;
+
+   case GL_ALPHA:
+   case GL_ALPHA4:
+   case GL_ALPHA8:
+   case GL_ALPHA12:
+   case GL_ALPHA16:
+   case GL_COMPRESSED_ALPHA:
+      /* FIXME: This will report incorrect component sizes... */
+      SET_FORMAT( TMC_tformat_tw12, _mesa_texformat_argb4444 );
+      break;
+
+   case 1:
+   case GL_LUMINANCE:
+   case GL_LUMINANCE4:
+   case GL_LUMINANCE8:
+   case GL_LUMINANCE12:
+   case GL_LUMINANCE16:
+   case GL_COMPRESSED_LUMINANCE:
+      /* FIXME: This will report incorrect component sizes... */
+      SET_FORMAT( TMC_tformat_tw16, _mesa_texformat_rgb565 );
+      break;
+
+   case 2:
+   case GL_LUMINANCE_ALPHA:
+   case GL_LUMINANCE4_ALPHA4:
+   case GL_LUMINANCE6_ALPHA2:
+   case GL_LUMINANCE8_ALPHA8:
+   case GL_LUMINANCE12_ALPHA4:
+   case GL_LUMINANCE12_ALPHA12:
+   case GL_LUMINANCE16_ALPHA16:
+   case GL_COMPRESSED_LUMINANCE_ALPHA:
+      /* FIXME: This will report incorrect component sizes... */
+      SET_FORMAT( TMC_tformat_tw12, _mesa_texformat_argb4444 );
+      break;
+
+   case GL_INTENSITY:
+   case GL_INTENSITY4:
+   case GL_INTENSITY8:
+   case GL_INTENSITY12:
+   case GL_INTENSITY16:
+   case GL_COMPRESSED_INTENSITY:
+      /* FIXME: This will report incorrect component sizes... */
+      SET_FORMAT( TMC_tformat_tw12, _mesa_texformat_argb4444 );
+      break;
+
+   case GL_COLOR_INDEX:
+   case GL_COLOR_INDEX1_EXT:
+   case GL_COLOR_INDEX2_EXT:
+   case GL_COLOR_INDEX4_EXT:
+   case GL_COLOR_INDEX8_EXT:
+   case GL_COLOR_INDEX12_EXT:
+   case GL_COLOR_INDEX16_EXT:
+      SET_FORMAT( TMC_tformat_tw8, _mesa_texformat_ci8 );
+      break;
+
+   default:
+      fprintf( stderr, "bad texture format in mgaChooseTexFormat() %d",
+	       texImage->IntFormat );
+      return -1;
+   }
+
+   texImage->TexFormat = texFormat;
+
+   return ret;
+}
+
+
+/*
+ * mgaCreateTexObj
+ * Allocate space for and load the mesa images into the texture memory block.
+ * This will happen before drawing with a new texture, or drawing with a
+ * texture after it was swapped out or teximaged again.
+ */
+static void mgaCreateTexObj(mgaContextPtr mmesa,
+			    struct gl_texture_object *tObj)
+{
+   const GLint baseLevel = tObj->BaseLevel;
+   struct gl_texture_image *image = tObj->Image[baseLevel];
+   mgaTextureObjectPtr t;
+   int i, ofs;
+   int LastLevel;
+   int s, s2;
+   int tformat;
+
+   if (!image) return;
+
+   tObj->DriverData = t = calloc( 1, sizeof( *t ) );
+   if (!t) {
+      fprintf(stderr, "mgaCreateTexObj: Failed to malloc mgaTextureObject\n" );
+      return;
+   }
+
+   /* FIXME: Use the real DD interface...
+    */
+   tformat = mgaChooseTexFormat( mmesa, image, image->Format,
+				 GL_UNSIGNED_BYTE );
+   t->texelBytes = image->TexFormat->TexelBytes;
+
+   /* We are going to upload all levels that are present, even if
+    * later levels wouldn't be used by the current filtering mode.  This
+    * allows the filtering mode to change without forcing another upload
+    * of the images.
+    */
+   LastLevel = MGA_TEX_MAXLEVELS-1;
+
+   ofs = 0;
+   for ( i = 0 ; i <= LastLevel ; i++ ) {
+      if ( !tObj->Image[i] ) {
+	 LastLevel = i - 1;
+	 break;
+      }
+
+      t->offsets[i] = ofs;
+      t->dirty_images |= (1<<i);
+
+      ofs += ((MAX2( tObj->Image[i]->Width, 8 ) *
+	       MAX2( tObj->Image[i]->Height, 8 ) *
+	       t->texelBytes) + 31) & ~31;
+   }
+   t->totalSize = ofs;
+   t->lastLevel = LastLevel;
+   t->tObj = tObj;
+   t->ctx = mmesa;
+   t->age = 0;
+   t->bound = 0;
+   t->MemBlock = 0;
+
+   insert_at_tail(&(mmesa->SwappedOut), t);
+
+
+   /* setup hardware register values */
+   t->setup.texctl = TMC_takey_1 | TMC_tamask_0 | tformat;
+
+   if (image->WidthLog2 >= 3)
+      t->setup.texctl |= ((image->WidthLog2 - 3) << TMC_tpitch_SHIFT);
+   else
+      t->setup.texctl |= (TMC_tpitchlin_enable |
+			  (image->Width << TMC_tpitchext_SHIFT));
+
+
+   t->setup.texctl2 = TMC_ckstransdis_enable;
+
+   if ( mmesa->glCtx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR )
+      t->setup.texctl2 |= TMC_specen_enable;
+
+
+   t->setup.texfilter = (TF_minfilter_nrst |
+			 TF_magfilter_nrst |
+			 TF_filteralpha_enable |
+			 (0x10 << TF_fthres_SHIFT) |
+			 (LastLevel << TF_mapnb_SHIFT));
+
+   /* warp texture registers */
+   ofs = MGA_IS_G200(mmesa) ? 28 : 11;
+   s = image->Width;
+   s2 = image->WidthLog2;
+   t->setup.texwidth = (MGA_FIELD(TW_twmask, s - 1) |
+			MGA_FIELD(TW_rfw, (10 - s2 - 8) & 63 ) |
+			MGA_FIELD(TW_tw, (s2 + ofs ) | 0x40 ));
+
+
+   s = image->Height;
+   s2 = image->HeightLog2;
+   t->setup.texheight = (MGA_FIELD(TH_thmask, s - 1) |
+			 MGA_FIELD(TH_rfh, (10 - s2 - 8) & 63 ) |
+			 MGA_FIELD(TH_th, (s2 + ofs ) | 0x40 ));
+
+
+   /* set all the register values for filtering, border, etc */
+   mgaSetTexWrapping( t, tObj->WrapS, tObj->WrapT );
+   mgaSetTexFilter( t, tObj->MinFilter, tObj->MagFilter );
+   mgaSetTexBorderColor( t, tObj->_BorderChan );
+}
+
+
+
+
+static void mgaUpdateTextureEnvG200( GLcontext *ctx )
+{
+   struct gl_texture_object *tObj = ctx->Texture.Unit[0]._Current;
+   mgaTextureObjectPtr t;
+
+   if (!tObj || !tObj->DriverData)
+      return;
+
+   t = (mgaTextureObjectPtr)tObj->DriverData;
+
+   t->setup.texctl2 &= ~TMC_decalblend_enable;
+
+   switch (ctx->Texture.Unit[0].EnvMode) {
+   case GL_REPLACE:
+      t->setup.texctl &= ~TMC_tmodulate_enable;
+      break;
+   case GL_MODULATE:
+      t->setup.texctl |= TMC_tmodulate_enable;
+      break;
+   case GL_DECAL:
+      t->setup.texctl &= ~TMC_tmodulate_enable;
+      t->setup.texctl2 |= TMC_decalblend_enable;
+      break;
+   case GL_BLEND:
+      FALLBACK( ctx, MGA_FALLBACK_TEXTURE, GL_TRUE );
+      break;
+   default:
+      break;
+   }
+}
+
+static void mgaUpdateTextureEnvG400( GLcontext *ctx, int unit )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   GLuint *reg = ((GLuint *)&mmesa->setup.tdualstage0 + unit);
+   GLuint source = mmesa->tmu_source[unit];
+   struct gl_texture_object *tObj = ctx->Texture.Unit[source]._Current;
+   GLenum format;
+
+   if ( tObj != ctx->Texture.Unit[source].Current2D || !tObj ) 
+      return;
+
+   format = tObj->Image[tObj->BaseLevel]->Format;
+
+   switch (ctx->Texture.Unit[source].EnvMode) {
+   case GL_REPLACE:
+      if (format == GL_RGB || format == GL_LUMINANCE) {
+	 *reg = (TD0_color_sel_arg1 |
+                 TD0_alpha_arg2_diffuse |
+		 TD0_alpha_sel_arg2 );
+      }
+      else if (format == GL_ALPHA) {
+         *reg = (TD0_color_sel_arg2 |
+                 TD0_color_arg2_diffuse |
+                 TD0_alpha_sel_arg1 );
+      }
+      else {
+         *reg = (TD0_color_sel_arg1 |
+                 TD0_alpha_sel_arg1 );
+      }
+      break;
+
+   case GL_MODULATE:
+      if (unit == 0) {
+	 *reg = ( TD0_color_arg2_diffuse |
+		  TD0_color_sel_mul |
+		  TD0_alpha_arg2_diffuse |
+		  TD0_alpha_sel_mul);
+      }
+      else {
+	 *reg = ( TD0_color_arg2_prevstage |
+		  TD0_color_alpha_prevstage |
+		  TD0_color_sel_mul |
+		  TD0_alpha_arg2_prevstage |
+		  TD0_alpha_sel_mul);
+      }
+      break;
+   case GL_DECAL:
+      if (format == GL_RGB) {
+         if (unit == 0) {
+            *reg = (TD0_color_sel_arg1 |
+                    TD0_alpha_arg2_diffuse |
+                    TD0_alpha_sel_arg2 );
+         }
+         else {
+            *reg = (TD0_color_sel_arg1 |
+                    TD0_alpha_arg2_prevstage |
+                    TD0_alpha_sel_arg2 );
+         }
+      }
+      else if ( format == GL_RGBA ) {
+#if 0
+         if (unit == 0) {
+            /* this doesn't work */
+            *reg = (TD0_color_arg2_diffuse |
+                    TD0_color_alpha_currtex |
+                    TD0_color_alpha2inv_enable |
+                    TD0_color_arg2mul_alpha2 |
+                    TD0_color_arg1mul_alpha1 |
+                    TD0_color_blend_enable |
+                    TD0_color_arg1add_mulout |
+                    TD0_color_arg2add_mulout |
+                    TD0_color_add_add |
+                    TD0_color_sel_mul |
+                    TD0_alpha_arg2_diffuse |
+                    TD0_alpha_sel_arg2 );
+         }
+         else {
+            *reg = (TD0_color_arg2_prevstage |
+                    TD0_color_alpha_currtex |
+                    TD0_color_alpha2inv_enable |
+                    TD0_color_arg2mul_alpha2 |
+                    TD0_color_arg1mul_alpha1 |
+                    TD0_color_add_add |
+                    TD0_color_sel_add |
+                    TD0_alpha_arg2_prevstage |
+                    TD0_alpha_sel_arg2 );
+         }
+#else
+         /* s/w fallback, pretty sure we can't do in h/w */
+	 FALLBACK( ctx, MGA_FALLBACK_TEXTURE, GL_TRUE );
+	 if ( MGA_DEBUG & DEBUG_VERBOSE_FALLBACK )
+	    fprintf( stderr, "FALLBACK: GL_DECAL RGBA texture, unit=%d\n",
+		     unit );
+#endif
+      }
+      else {
+	 if (unit == 0) {
+	    *reg = ( TD0_color_arg2_diffuse |
+		     TD0_color_sel_arg2 |
+		     TD0_alpha_arg2_diffuse |
+		     TD0_alpha_sel_arg2);
+	 }
+	 else {
+	    *reg = ( TD0_color_arg2_prevstage |
+		     TD0_color_sel_arg2 |
+		     TD0_alpha_arg2_prevstage |
+		     TD0_alpha_sel_arg2);
+	 }
+      }
+      break;
+
+   case GL_ADD:
+      if (unit == 0) {
+         if (format == GL_INTENSITY)
+            *reg = ( TD0_color_arg2_diffuse |
+                     TD0_color_add_add |
+                     TD0_color_sel_add |
+                     TD0_alpha_arg2_diffuse |
+                     TD0_alpha_add_enable |
+                     TD0_alpha_sel_add);
+         else if (format == GL_ALPHA)
+            *reg = ( TD0_color_arg2_diffuse |
+                     TD0_color_sel_mul |
+                     TD0_alpha_arg2_diffuse |
+                     TD0_alpha_sel_mul);
+         else
+            *reg = ( TD0_color_arg2_diffuse |
+                     TD0_color_add_add |
+                     TD0_color_sel_add |
+                     TD0_alpha_arg2_diffuse |
+                     TD0_alpha_sel_mul);
+      }
+      else {
+         if (format == GL_INTENSITY) {
+            *reg = ( TD0_color_arg2_prevstage |
+                     TD0_color_add_add |
+                     TD0_color_sel_add |
+                     TD0_alpha_arg2_prevstage |
+                     TD0_alpha_add_enable |
+                     TD0_alpha_sel_add);
+         }
+         else if (format == GL_ALPHA) {
+            *reg = ( TD0_color_arg2_prevstage |
+                     TD0_color_sel_mul |
+                     TD0_alpha_arg2_prevstage |
+                     TD0_alpha_sel_mul);
+         }
+         else {
+            *reg = ( TD0_color_arg2_prevstage |
+                     TD0_color_alpha_prevstage |
+                     TD0_color_add_add |
+                     TD0_color_sel_add |
+                     TD0_alpha_arg2_prevstage |
+                     TD0_alpha_sel_mul);
+         }
+      }
+      break;
+
+   case GL_BLEND:
+      if (format == GL_ALPHA) {
+	 *reg = ( TD0_color_arg2_diffuse |
+		  TD0_color_sel_mul |
+		  TD0_alpha_arg2_diffuse |
+		  TD0_alpha_sel_mul);
+      }
+      else {
+	 FALLBACK( ctx, MGA_FALLBACK_TEXTURE, GL_TRUE );
+	 if ( MGA_DEBUG & DEBUG_VERBOSE_FALLBACK )
+	    fprintf( stderr, "FALLBACK: GL_BLEND envcolor=0x%08x\n",
+		     mmesa->envcolor );
+
+         /* Do singletexture GL_BLEND with 'all ones' env-color
+          * by using both texture units.  Multitexture gl_blend
+          * is a fallback.
+          */
+         if (unit == 0) {
+            /* Part 1: R1 = Rf ( 1 - Rt )
+             *         A1 = Af At
+             */
+            *reg = ( TD0_color_arg2_diffuse |
+                     TD0_color_arg1_inv_enable |
+                     TD0_color_sel_mul |
+                     TD0_alpha_arg2_diffuse |
+                     TD0_alpha_sel_arg1);
+         } else {
+            /* Part 2: R2 = R1 + Rt
+             *         A2 = A1
+             */
+            *reg = ( TD0_color_arg2_prevstage |
+                     TD0_color_add_add |
+                     TD0_color_sel_add |
+                     TD0_alpha_arg2_prevstage |
+                     TD0_alpha_sel_arg2);
+         }
+      }
+      break;
+   default:
+      break;
+   }
+}
+
+
+
+static void mgaUpdateTextureObject( GLcontext *ctx, int hw_unit )
+{
+   mgaTextureObjectPtr t;
+   struct gl_texture_object	*tObj;
+   GLuint enabled;
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   GLuint gl_unit = mmesa->tmu_source[hw_unit];
+
+
+   enabled = ctx->Texture.Unit[gl_unit]._ReallyEnabled;
+   tObj = ctx->Texture.Unit[gl_unit]._Current;
+
+   if (enabled != TEXTURE_2D_BIT) {
+      if (enabled)
+	 FALLBACK( ctx, MGA_FALLBACK_TEXTURE, GL_TRUE );
+      return;
+   }
+
+   if (tObj->Image[tObj->BaseLevel]->Border > 0) {
+      FALLBACK( ctx, MGA_FALLBACK_TEXTURE, GL_TRUE );
+      if ( MGA_DEBUG & DEBUG_VERBOSE_FALLBACK )
+	 fprintf( stderr, "FALLBACK: texture border\n" );
+      return;
+   }
+
+   if ( !tObj->DriverData ) {
+      mgaCreateTexObj( mmesa, tObj );
+      if ( !tObj->DriverData ) {
+	 FALLBACK( ctx, MGA_FALLBACK_TEXTURE, GL_TRUE );
+	 return;		
+      }
+   }
+
+   t = (mgaTextureObjectPtr)tObj->DriverData;
+
+   if (t->dirty_images)
+      mmesa->dirty |= (MGA_UPLOAD_TEX0IMAGE << hw_unit);
+
+   mmesa->CurrentTexObj[hw_unit] = t;
+   t->bound |= hw_unit+1;
+
+/*     if (t->MemBlock) */
+/*        mgaUpdateTexLRU( mmesa, t ); */
+
+   t->setup.texctl2 &= ~TMC_dualtex_enable;
+   if ((ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT) &&
+       (ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT)) 
+      t->setup.texctl2 |= TMC_dualtex_enable;
+
+   t->setup.texctl2 &= ~TMC_specen_enable;
+   if (ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR)
+      t->setup.texctl2 |= TMC_specen_enable;
+}
+
+
+
+
+
+
+/* The G400 is now programmed quite differently wrt texture environment.
+ */
+void mgaUpdateTextureState( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   FALLBACK( ctx, MGA_FALLBACK_TEXTURE, GL_FALSE );
+
+   if (mmesa->CurrentTexObj[0]) {
+      mmesa->CurrentTexObj[0]->bound = 0;
+      mmesa->CurrentTexObj[0] = 0;
+   }
+
+   if (mmesa->CurrentTexObj[1]) {
+      mmesa->CurrentTexObj[1]->bound = 0;
+      mmesa->CurrentTexObj[1] = 0;
+   }
+
+   if (ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT) {
+      mmesa->tmu_source[0] = 1;
+   } else {
+      mmesa->tmu_source[0] = 0;
+   }
+
+   if (MGA_IS_G400(mmesa)) {
+      mgaUpdateTextureObject( ctx, 0 );
+      mgaUpdateTextureEnvG400( ctx, 0 );
+
+      mmesa->setup.tdualstage1 = mmesa->setup.tdualstage0;
+      
+      if ((ctx->Texture.Unit[0]._ReallyEnabled == TEXTURE_2D_BIT) &&
+          (ctx->Texture.Unit[1]._ReallyEnabled == TEXTURE_2D_BIT)) {
+	 mgaUpdateTextureObject( ctx, 1 );	
+	 mgaUpdateTextureEnvG400( ctx, 1 );
+	 mmesa->dirty |= MGA_UPLOAD_TEX1;
+      }
+   } else {
+      mgaUpdateTextureObject( ctx, 0 );
+      mgaUpdateTextureEnvG200( ctx );
+   }
+
+   mmesa->dirty |= MGA_UPLOAD_CONTEXT | MGA_UPLOAD_TEX0;
+
+   mmesa->setup.dwgctl &= DC_opcod_MASK;
+   mmesa->setup.dwgctl |= (ctx->Texture.Unit[0]._ReallyEnabled
+			   ? DC_opcod_texture_trap
+			   : DC_opcod_trap);
+}
+
+
+
+
+static void mgaDDTexEnv( GLcontext *ctx, GLenum target,
+			 GLenum pname, const GLfloat *param )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+
+   if (pname == GL_TEXTURE_ENV_MODE) {
+      /* force the texture state to be updated */
+      FLUSH_BATCH( MGA_CONTEXT(ctx) );
+      MGA_CONTEXT(ctx)->new_state |= (MGA_NEW_TEXTURE |
+				      MGA_NEW_ALPHA);
+   }
+   else if (pname == GL_TEXTURE_ENV_COLOR)
+   {
+      struct gl_texture_unit *texUnit =
+	 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+      GLfloat *fc = texUnit->EnvColor;
+      GLubyte c[4];
+      GLuint col;
+
+      COPY_4V(c, fc);
+      col = mgaPackColor( mmesa->mgaScreen->cpp, c[0], c[1], c[2], c[3] );
+      mmesa->envcolor = (c[3]<<24) | (c[0]<<16) | (c[1]<<8) | (c[2]);
+
+      if (mmesa->setup.fcol != col) {
+	 FLUSH_BATCH(mmesa);
+	 mmesa->setup.fcol = col;
+	 mmesa->dirty |= MGA_UPLOAD_CONTEXT;
+
+	 mmesa->blend_flags &= ~MGA_BLEND_ENV_COLOR;
+
+	 /* Actually just require all four components to be
+	  * equal.  This permits a single-pass GL_BLEND.
+	  *
+	  * More complex multitexture/multipass fallbacks
+	  * for blend can be done later.
+	  */
+	 if (mmesa->envcolor != 0x0 && mmesa->envcolor != 0xffffffff)
+	    mmesa->blend_flags |= MGA_BLEND_ENV_COLOR;
+      }
+   }
+}
+
+
+static void mgaTexImage2D( GLcontext *ctx, GLenum target, GLint level,
+			    GLint internalFormat,
+			    GLint width, GLint height, GLint border,
+			    GLenum format, GLenum type, const GLvoid *pixels,
+			    const struct gl_pixelstore_attrib *packing,
+			    struct gl_texture_object *texObj,
+			    struct gl_texture_image *texImage )
+{
+   mgaTextureObjectPtr t = (mgaTextureObjectPtr) texObj->DriverData;
+   if (t) {
+      mgaDestroyTexObj( MGA_CONTEXT(ctx), t );
+      texObj->DriverData = 0;
+   }
+   _mesa_store_teximage2d( ctx, target, level, internalFormat,
+			   width, height, border, format, type,
+			   pixels, packing, texObj, texImage );
+}
+
+static void mgaTexSubImage2D( GLcontext *ctx, 
+			       GLenum target,
+			       GLint level,	
+			       GLint xoffset, GLint yoffset,
+			       GLsizei width, GLsizei height,
+			       GLenum format, GLenum type,
+			       const GLvoid *pixels,
+			       const struct gl_pixelstore_attrib *packing,
+			       struct gl_texture_object *texObj,
+			       struct gl_texture_image *texImage )
+{
+   mgaTextureObjectPtr t = (mgaTextureObjectPtr) texObj->DriverData;
+   if (t) {
+      mgaDestroyTexObj( MGA_CONTEXT(ctx), t );
+      texObj->DriverData = 0;
+   }
+   _mesa_store_texsubimage2d(ctx, target, level, xoffset, yoffset, width, 
+			     height, format, type, pixels, packing, texObj,
+			     texImage);
+
+}
+
+
+
+
+/*
+ * mgaTexParameter
+ * This just changes variables and flags for a state update, which
+ * will happen at the next mgaUpdateTextureState
+ */
+static void
+mgaDDTexParameter( GLcontext *ctx, GLenum target,
+		   struct gl_texture_object *tObj,
+		   GLenum pname, const GLfloat *params )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   mgaTextureObjectPtr t;
+
+   t = (mgaTextureObjectPtr) tObj->DriverData;
+
+   /* if we don't have a hardware texture, it will be automatically
+      created with current state before it is used, so we don't have
+      to do anything now */
+   if ( !t || !t->bound || target != GL_TEXTURE_2D ) {
+      return;
+   }
+
+   switch (pname) {
+   case GL_TEXTURE_MIN_FILTER:
+   case GL_TEXTURE_MAG_FILTER:
+      FLUSH_BATCH(mmesa);
+      mgaSetTexFilter( t, tObj->MinFilter, tObj->MagFilter );
+      break;
+
+   case GL_TEXTURE_WRAP_S:
+   case GL_TEXTURE_WRAP_T:
+      FLUSH_BATCH(mmesa);
+      mgaSetTexWrapping(t,tObj->WrapS,tObj->WrapT);
+      break;
+
+   case GL_TEXTURE_BORDER_COLOR:
+      FLUSH_BATCH(mmesa);
+      mgaSetTexBorderColor(t,tObj->_BorderChan);
+      break;
+
+   default:
+      return;
+   }
+
+   mmesa->new_state |= MGA_NEW_TEXTURE;
+}
+
+
+static void
+mgaDDBindTexture( GLcontext *ctx, GLenum target,
+		  struct gl_texture_object *tObj )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   int unit = ctx->Texture.CurrentUnit;
+
+   FLUSH_BATCH(mmesa);
+
+   if (mmesa->CurrentTexObj[unit]) {
+      mmesa->CurrentTexObj[unit]->bound &= ~(unit+1);
+      mmesa->CurrentTexObj[unit] = 0;
+   }
+
+   /* force the texture state to be updated
+    */
+   MGA_CONTEXT(ctx)->new_state |= MGA_NEW_TEXTURE;
+}
+
+
+static void
+mgaDDDeleteTexture( GLcontext *ctx, struct gl_texture_object *tObj )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   mgaTextureObjectPtr t = (mgaTextureObjectPtr)tObj->DriverData;
+
+   if ( t ) {
+      if (mmesa) {
+         if (t->bound) {
+            FLUSH_BATCH(mmesa);
+            if (t->bound & TEX_0) mmesa->CurrentTexObj[0] = 0;
+            if (t->bound & TEX_1) mmesa->CurrentTexObj[1] = 0;
+         }
+         mmesa->new_state |= MGA_NEW_TEXTURE;
+      }
+
+      mgaDestroyTexObj( mmesa, t );
+   }
+}
+
+
+static GLboolean
+mgaDDIsTextureResident( GLcontext *ctx, struct gl_texture_object *t )
+{
+   mgaTextureObjectPtr mt = (mgaTextureObjectPtr)t->DriverData;
+   return mt && mt->MemBlock;
+}
+
+
+void
+mgaDDInitTextureFuncs( GLcontext *ctx )
+{
+   ctx->Driver.TexEnv = mgaDDTexEnv;
+
+   ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format;
+   ctx->Driver.TexImage1D = _mesa_store_teximage1d;
+   ctx->Driver.TexImage2D = mgaTexImage2D;
+   ctx->Driver.TexImage3D = _mesa_store_teximage3d;
+   ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d;
+   ctx->Driver.TexSubImage2D = mgaTexSubImage2D;
+   ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d;
+   ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d;
+   ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d;
+   ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d;
+   ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d;
+   ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d;
+   ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage;
+
+   ctx->Driver.BindTexture = mgaDDBindTexture;
+   ctx->Driver.DeleteTexture = mgaDDDeleteTexture;
+   ctx->Driver.TexParameter = mgaDDTexParameter;
+   ctx->Driver.UpdateTexturePalette = 0;
+   ctx->Driver.IsTextureResident = mgaDDIsTextureResident;
+}

src/mesa/drivers/dri/mga/mgatex.h

@@ -0,0 +1,62 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatex.h,v 1.7 2002/10/30 12:51:36 alanh Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef MGATEX_INC
+#define MGATEX_INC
+
+#include "mgacontext.h"
+
+typedef struct mga_texture_object_s *mgaTextureObjectPtr;
+
+
+/* Called before a primitive is rendered to make sure the texture
+ * state is properly setup.  Texture residence is checked later
+ * when we grab the lock.
+ */
+void mgaUpdateTextureState( GLcontext *ctx );
+
+void mgaConvertTexture( GLuint *dest, int texelBytes,
+			struct gl_texture_image *image,
+			int x, int y, int width, int height );
+
+
+void mgaUploadSubImageLocked( mgaContextPtr mmesa,
+			      mgaTextureObjectPtr t,
+			      int level,
+			      int x, int y, int width, int height );
+
+int mgaUploadTexImages( mgaContextPtr mmesa, mgaTextureObjectPtr t );
+
+void mgaDestroyTexObj( mgaContextPtr mmesa, mgaTextureObjectPtr t );
+
+void mgaAgeTextures( mgaContextPtr mmesa, int heap );
+
+void mgaDDInitTextureFuncs( GLcontext *ctx );
+
+
+#endif

src/mesa/drivers/dri/mga/mgatexcnv.c

@@ -0,0 +1,256 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatexcnv.c,v 1.3 2002/10/30 12:51:36 alanh Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <GL/gl.h>
+
+#include "mm.h"
+#include "mgacontext.h"
+#include "mgatex.h"
+
+
+/*
+ * mgaConvertTexture
+ * Converts a mesa format texture to the apropriate hardware format
+ * Note that sometimes width may be larger than the texture, like 64x1
+ * for an 8x8 texture.  This happens when we have to crutch the pitch
+ * limits of the mga by uploading a block of texels as a single line.
+ */
+void mgaConvertTexture( GLuint *destPtr, int texelBytes,
+			struct gl_texture_image *image,
+			int x, int y, int width, int height )
+{
+   register int		i, j;
+   GLubyte		*src;
+   int stride;
+
+   if (0)
+      fprintf(stderr, "texture image %p\n", image->Data);
+
+   if (image->Data == 0)
+      return;
+
+   /* FIXME: g400 luminance_alpha internal format */
+   switch (texelBytes) {
+   case 1:
+      switch (image->Format) {
+      case GL_COLOR_INDEX:
+      case GL_INTENSITY:
+      case GL_LUMINANCE:
+      case GL_ALPHA:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x );
+	 stride = (image->Width - width);
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width >> 2  ; j ; j-- ) {
+
+	       *destPtr++ = src[0] | ( src[1] << 8 ) | ( src[2] << 16 ) | ( src[3] << 24 );
+	       src += 4;
+	    }
+	    src += stride;
+	 }
+	 break;
+      default:
+	 goto format_error;
+      }
+      break;
+   case 2:
+      switch (image->Format) {
+      case GL_RGB:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x ) * 3;
+	 stride = (image->Width - width) * 3;
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width >> 1  ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR565(src[0],src[1],src[2]) |
+		  ( MGAPACKCOLOR565(src[3],src[4],src[5]) << 16 );
+	       src += 6;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_RGBA:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x ) * 4;
+	 stride = (image->Width - width) * 4;
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width >> 1  ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR4444(src[0],src[1],src[2],src[3]) |
+		  ( MGAPACKCOLOR4444(src[4],src[5],src[6],src[7]) << 16 );
+	       src += 8;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_LUMINANCE:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x );
+	 stride = (image->Width - width);
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width >> 1  ; j ; j-- ) {
+	       /* FIXME: should probably use 555 texture to get true grey */
+	       *destPtr++ = MGAPACKCOLOR565(src[0],src[0],src[0]) |
+		  ( MGAPACKCOLOR565(src[1],src[1],src[1]) << 16 );
+	       src += 2;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_INTENSITY:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x );
+	 stride = (image->Width - width);
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width >> 1  ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR4444(src[0],src[0],src[0],src[0]) |
+		  ( MGAPACKCOLOR4444(src[1],src[1],src[1],src[1]) << 16 );
+	       src += 2;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_ALPHA:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x );
+	 stride = (image->Width - width);
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width >> 1  ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR4444(255,255,255,src[0]) |
+		  ( MGAPACKCOLOR4444(255,255,255,src[1]) << 16 );
+	       src += 2;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_LUMINANCE_ALPHA:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x ) * 2;
+	 stride = (image->Width - width) * 2;
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width >> 1  ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR4444(src[0],src[0],src[0],src[1]) |
+		  ( MGAPACKCOLOR4444(src[2],src[2],src[2],src[3]) << 16 );
+	       src += 4;
+	    }
+	    src += stride;
+	 }
+	 break;
+      default:
+	 goto format_error;
+      }
+      break;
+   case 4:
+      switch (image->Format) {
+      case GL_RGB:
+	 src = (GLubyte *)image->Data + (  y * image->Width + x ) * 3;
+	 stride = (image->Width - width) * 3;
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR8888(src[0],src[1],src[2], 255);
+	       src += 3;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_RGBA:
+	 src = (GLubyte *)image->Data + (  y * image->Width + x ) * 4;
+	 stride = (image->Width - width) * 4;
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width  ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR8888(src[0],src[1],src[2],src[3]);
+	       src += 4;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_LUMINANCE:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x );
+	 stride = (image->Width - width);
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR8888(src[0],src[0],src[0], 255);
+	       src += 1;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_INTENSITY:
+	 src = (GLubyte *)image->Data + (  y * image->Width + x );
+	 stride = (image->Width - width);
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR8888(src[0],src[0],src[0],src[0]);
+	       src += 1;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_ALPHA:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x );
+	 stride = (image->Width - width);
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR8888(255,255,255,src[0]);
+	       src += 1;
+	    }
+	    src += stride;
+	 }
+	 break;
+      case GL_LUMINANCE_ALPHA:
+	 src = (GLubyte *)image->Data + ( y * image->Width + x ) * 2;
+	 stride = (image->Width - width) * 2;
+	 for ( i = height ; i ; i-- ) {
+	    for ( j = width ; j ; j-- ) {
+
+	       *destPtr++ = MGAPACKCOLOR8888(src[0],src[0],
+					     src[0],src[1]);
+	       src += 2;
+	    }
+	    src += stride;
+	 }
+	 break;
+      default:
+	 goto format_error;
+      }
+      break;
+   default:
+      goto format_error;
+   }
+
+   return;
+
+ format_error:
+
+   fprintf(stderr, "Unsupported texelBytes %i, image->Format %i\n",
+	   (int)texelBytes, (int)image->Format );
+}

src/mesa/drivers/dri/mga/mgatexmem.c

@@ -0,0 +1,564 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatexmem.c,v 1.7 2002/10/30 12:51:36 alanh Exp $ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <GL/gl.h>
+
+#include "mm.h"
+#include "mgacontext.h"
+#include "mgatex.h"
+#include "mgaregs.h"
+#include "mgaioctl.h"
+
+//#include "mem.h"
+#include "simple_list.h"
+
+static void
+mgaSwapOutTexObj(mgaContextPtr mmesa, mgaTextureObjectPtr t)
+{
+   if (t->MemBlock) {
+      mmFreeMem(t->MemBlock);
+      t->MemBlock = 0;
+
+      if (t->age > mmesa->dirtyAge)
+	 mmesa->dirtyAge = t->age;
+   }
+
+   t->dirty_images = ~0;
+   move_to_tail(&(mmesa->SwappedOut), t);
+}
+
+static void
+mgaPrintLocalLRU( mgaContextPtr mmesa, int heap )
+{
+   mgaTextureObjectPtr t;
+   int sz = 1 << (mmesa->mgaScreen->logTextureGranularity[heap]);
+
+   fprintf(stderr, "\nLocal LRU, heap %d:\n", heap);
+
+   foreach( t, &(mmesa->TexObjList[heap]) ) {
+      if (!t->tObj)
+	 fprintf(stderr, "Placeholder %d at %x sz %x\n",
+		 t->MemBlock->ofs / sz,
+		 t->MemBlock->ofs,
+		 t->MemBlock->size);
+      else
+	 fprintf(stderr, "Texture (bound %d) at %x sz %x\n",
+		 t->bound,
+		 t->MemBlock->ofs,
+		 t->MemBlock->size);
+   }
+
+   fprintf(stderr, "\n\n");
+}
+
+static void
+mgaPrintGlobalLRU( mgaContextPtr mmesa, int heap )
+{
+   int i, j;
+   drmTextureRegion *list = mmesa->sarea->texList[heap];
+
+   fprintf(stderr, "\nGlobal LRU, heap %d list %p:\n", heap, list);
+
+   for (i = 0, j = MGA_NR_TEX_REGIONS ; i < MGA_NR_TEX_REGIONS ; i++) {
+      fprintf(stderr, "list[%d] age %d next %d prev %d\n",
+	      j, list[j].age, list[j].next, list[j].prev);
+      j = list[j].next;
+      if (j == MGA_NR_TEX_REGIONS) break;
+   }
+
+   if (j != MGA_NR_TEX_REGIONS) {
+      fprintf(stderr, "Loop detected in global LRU\n\n\n");
+      for (i = 0 ; i < MGA_NR_TEX_REGIONS ; i++) {
+	 fprintf(stderr, "list[%d] age %d next %d prev %d\n",
+		 i, list[i].age, list[i].next, list[i].prev);
+      }
+   }
+
+   fprintf(stderr, "\n\n");
+}
+
+
+static void mgaResetGlobalLRU( mgaContextPtr mmesa, GLuint heap )
+{
+   drmTextureRegion *list = mmesa->sarea->texList[heap];
+   int sz = 1 << mmesa->mgaScreen->logTextureGranularity[heap];
+   int i;
+
+   mmesa->texAge[heap] = ++mmesa->sarea->texAge[heap];
+
+   if (0) fprintf(stderr, "mgaResetGlobalLRU %d\n", (int)heap);
+
+   /* (Re)initialize the global circular LRU list.  The last element
+    * in the array (MGA_NR_TEX_REGIONS) is the sentinal.  Keeping it
+    * at the end of the array allows it to be addressed rationally
+    * when looking up objects at a particular location in texture
+    * memory.
+    */
+   for (i = 0 ; (i+1) * sz <= mmesa->mgaScreen->textureSize[heap] ; i++) {
+      list[i].prev = i-1;
+      list[i].next = i+1;
+      list[i].age = mmesa->sarea->texAge[heap];
+   }
+
+   i--;
+   list[0].prev = MGA_NR_TEX_REGIONS;
+   list[i].prev = i-1;
+   list[i].next = MGA_NR_TEX_REGIONS;
+   list[MGA_NR_TEX_REGIONS].prev = i;
+   list[MGA_NR_TEX_REGIONS].next = 0;
+
+}
+
+
+static void mgaUpdateTexLRU( mgaContextPtr mmesa, mgaTextureObjectPtr t )
+{
+   int i;
+   int heap = t->heap;
+   int logsz = mmesa->mgaScreen->logTextureGranularity[heap];
+   int start = t->MemBlock->ofs >> logsz;
+   int end = (t->MemBlock->ofs + t->MemBlock->size - 1) >> logsz;
+   drmTextureRegion *list = mmesa->sarea->texList[heap];
+
+   mmesa->texAge[heap] = ++mmesa->sarea->texAge[heap];
+
+   if (!t->MemBlock) {
+      fprintf(stderr, "no memblock\n\n");
+      return;
+   }
+
+   /* Update our local LRU
+    */
+   move_to_head( &(mmesa->TexObjList[heap]), t );
+
+
+   if (0)
+      fprintf(stderr, "mgaUpdateTexLRU heap %d list %p\n", heap, list);
+
+
+   /* Update the global LRU
+    */
+   for (i = start ; i <= end ; i++) {
+
+      list[i].in_use = 1;
+      list[i].age = mmesa->texAge[heap];
+
+      /* remove_from_list(i)
+       */
+      list[(unsigned)list[i].next].prev = list[i].prev;
+      list[(unsigned)list[i].prev].next = list[i].next;
+
+      /* insert_at_head(list, i)
+       */
+      list[i].prev = MGA_NR_TEX_REGIONS;
+      list[i].next = list[MGA_NR_TEX_REGIONS].next;
+      list[(unsigned)list[MGA_NR_TEX_REGIONS].next].prev = i;
+      list[MGA_NR_TEX_REGIONS].next = i;
+   }
+
+   if (0) {
+      mgaPrintGlobalLRU(mmesa, t->heap);
+      mgaPrintLocalLRU(mmesa, t->heap);
+   }
+}
+
+/* Called for every shared texture region which has increased in age
+ * since we last held the lock.
+ *
+ * Figures out which of our textures have been ejected by other clients,
+ * and pushes a placeholder texture onto the LRU list to represent
+ * the other client's textures.
+ */
+static void mgaTexturesGone( mgaContextPtr mmesa,
+			     GLuint heap,
+			     GLuint offset,
+			     GLuint size,
+			     GLuint in_use )
+{
+   mgaTextureObjectPtr t, tmp;
+
+
+
+   foreach_s ( t, tmp, &(mmesa->TexObjList[heap]) ) {
+
+      if (t->MemBlock->ofs >= offset + size ||
+	  t->MemBlock->ofs + t->MemBlock->size <= offset)
+	 continue;
+
+
+
+
+      /* It overlaps - kick it off.  Need to hold onto the currently bound
+       * objects, however.
+       */
+      if (t->bound)
+	 mgaSwapOutTexObj( mmesa, t );
+      else
+	 mgaDestroyTexObj( mmesa, t );
+   }
+
+
+   if (in_use) {
+      t = (mgaTextureObjectPtr) calloc(1, sizeof(*t));
+      if (!t) return;
+
+      t->heap = heap;
+      t->MemBlock = mmAllocMem( mmesa->texHeap[heap], size, 0, offset);
+      if (!t->MemBlock) {
+	 fprintf(stderr, "Couldn't alloc placeholder sz %x ofs %x\n",
+		 (int)size, (int)offset);
+	 mmDumpMemInfo( mmesa->texHeap[heap]);
+	 return;
+      }
+      insert_at_head( &(mmesa->TexObjList[heap]), t );
+   }
+}
+
+
+void mgaAgeTextures( mgaContextPtr mmesa, int heap )
+{
+   MGASAREAPrivPtr sarea = mmesa->sarea;
+   int sz = 1 << (mmesa->mgaScreen->logTextureGranularity[heap]);
+   int idx, nr = 0;
+
+   /* Have to go right round from the back to ensure stuff ends up
+    * LRU in our local list...  Fix with a cursor pointer.
+    */
+   for (idx = sarea->texList[heap][MGA_NR_TEX_REGIONS].prev ;
+	idx != MGA_NR_TEX_REGIONS && nr < MGA_NR_TEX_REGIONS ;
+	idx = sarea->texList[heap][idx].prev, nr++)
+   {
+      /* If switching texturing schemes, then the SAREA might not
+       * have been properly cleared, so we need to reset the
+       * global texture LRU.
+       */
+      if ( idx * sz > mmesa->mgaScreen->textureSize[heap] ) {
+         nr = MGA_NR_TEX_REGIONS;
+         break;
+      }
+
+      if (sarea->texList[heap][idx].age > mmesa->texAge[heap]) {
+        mgaTexturesGone(mmesa, heap, idx * sz, sz,
+                        sarea->texList[heap][idx].in_use);
+      }
+   }
+
+   if (nr == MGA_NR_TEX_REGIONS) {
+      mgaTexturesGone(mmesa, heap, 0,
+		      mmesa->mgaScreen->textureSize[heap], 0);
+      mgaResetGlobalLRU( mmesa, heap );
+   }
+
+
+   if (0) {
+      mgaPrintGlobalLRU( mmesa, heap );
+      mgaPrintLocalLRU( mmesa, heap );
+   }
+
+   mmesa->texAge[heap] = sarea->texAge[heap];
+   mmesa->dirty |= MGA_UPLOAD_TEX0IMAGE | MGA_UPLOAD_TEX1IMAGE;
+}
+
+/*
+ * mgaUploadSubImageLocked
+ *
+ * Perform an iload based update of a resident buffer.  This is used for
+ * both initial loading of the entire image, and texSubImage updates.
+ *
+ * Performed with the hardware lock held.
+ */
+void mgaUploadSubImageLocked( mgaContextPtr mmesa,
+			      mgaTextureObjectPtr t,
+			      int level,
+			      int x, int y, int width, int height )
+{
+   int		x2;
+   int		dwords;
+   int		offset;
+   struct gl_texture_image *image;
+   int		texelBytes, texelsPerDword, texelMaccess, length;
+
+   if ( level < 0 || level >= MGA_TEX_MAXLEVELS )
+      return;
+
+   image = t->tObj->Image[level];
+   if ( !image ) return;
+
+
+   if (image->Data == 0) {
+      fprintf(stderr, "null texture image data tObj %p level %d\n",
+	      t->tObj, level);
+      return;
+   }
+
+
+   /* find the proper destination offset for this level */
+   offset = (t->MemBlock->ofs +
+	     t->offsets[level]);
+
+
+   texelBytes = t->texelBytes;
+   switch( texelBytes ) {
+   case 1:
+      texelsPerDword = 4;
+      texelMaccess = 0;
+      break;
+   case 2:
+      texelsPerDword = 2;
+      texelMaccess = 1;
+      break;
+   case 4:
+      texelsPerDword = 1;
+      texelMaccess = 2;
+      break;
+   default:
+      return;
+   }
+
+
+   /* We can't do a subimage update if pitch is < 32 texels due
+    * to hardware XY addressing limits, so we will need to
+    * linearly upload all modified rows.
+    */
+   if ( image->Width < 32 ) {
+      x = 0;
+      width = image->Width * height;
+      height = 1;
+
+      /* Assume that 1x1 textures aren't going to cause a
+       * bus error if we read up to four texels from that
+       * location:
+       */
+/*        if ( width < texelsPerDword ) { */
+/*  	 width = texelsPerDword; */
+/*        } */
+   } else {
+      /* pad the size out to dwords.  The image is a pointer
+	 to the entire image, so we can safely reference
+	 outside the x,y,width,height bounds if we need to */
+      x2 = x + width;
+      x2 = (x2 + (texelsPerDword-1)) & ~(texelsPerDword-1);
+      x = (x + (texelsPerDword-1)) & ~(texelsPerDword-1);
+      width = x2 - x;
+   }
+
+   /* we may not be able to upload the entire texture in one
+      batch due to register limits or dma buffer limits.
+      Recursively split it up. */
+   while ( 1 ) {
+      dwords = height * width / texelsPerDword;
+      if ( dwords * 4 <= MGA_BUFFER_SIZE ) {
+	 break;
+      }
+
+      mgaUploadSubImageLocked( mmesa, t, level, x, y,
+			       width, height >> 1 );
+      y += ( height >> 1 );
+      height -= ( height >> 1 );
+   }
+
+   length = dwords * 4;
+
+   /* Fill in the secondary buffer with properly converted texels
+    * from the mesa buffer. */
+   /* FIXME: the sync for direct copy reduces speed.. */
+   if(t->heap == MGA_CARD_HEAP  ) {
+      mgaGetILoadBufferLocked( mmesa );
+      mgaConvertTexture( (GLuint *)mmesa->iload_buffer->address,
+			 texelBytes, image, x, y, width, height );
+      if(length < 64) length = 64;
+
+      if (0)
+	 fprintf(stderr, "TexelBytes : %d, offset: %d, length : %d\n",
+		 texelBytes,
+		 mmesa->mgaScreen->textureOffset[t->heap] +
+		 offset +
+		 y * width * 4/texelsPerDword,
+		 length);
+
+      mgaFireILoadLocked( mmesa,
+			  mmesa->mgaScreen->textureOffset[t->heap] +
+			  offset +
+			  y * width * 4/texelsPerDword,
+			  length);
+   } else {
+      /* This works, is slower for uploads to card space and needs
+       * additional synchronization with the dma stream.
+       */
+       
+      UPDATE_LOCK(mmesa, DRM_LOCK_FLUSH | DRM_LOCK_QUIESCENT);
+      mgaConvertTexture( (GLuint *)
+			 (mmesa->mgaScreen->texVirtual[t->heap] +
+			  offset +
+			  y * width * 4/texelsPerDword),
+			 texelBytes, image, x, y, width, height );
+   }
+}
+
+
+static void mgaUploadTexLevel( mgaContextPtr mmesa,
+			       mgaTextureObjectPtr t,
+			       int l )
+{
+   mgaUploadSubImageLocked( mmesa,
+			    t,
+			    l,
+			    0, 0,
+			    t->tObj->Image[l]->Width,
+			    t->tObj->Image[l]->Height);
+}
+
+
+
+
+#if 0
+static void mgaMigrateTexture( mgaContextPtr mmesa, mgaTextureObjectPtr t )
+{
+	/* NOT DONE */
+}
+#endif
+
+
+static int mgaChooseTexHeap( mgaContextPtr mmesa, mgaTextureObjectPtr t )
+{
+   int freeagp, freecard;
+   int fitincard, fitinagp;
+   int totalcard, totalagp;
+   TMemBlock *b;
+
+   totalcard = totalagp = fitincard = fitinagp = freeagp = freecard = 0;
+
+   b = mmesa->texHeap[0];
+   while(b)
+   {
+     totalcard += b->size;
+     if(b->free) if(t->totalSize <= b->size)fitincard = 1;
+     b = b->next;
+   }
+
+   b = mmesa->texHeap[1];
+   while(b)
+   {
+     totalagp += b->size;
+     if(b->free)  if(t->totalSize <= b->size)fitinagp = 1;
+     b = b->next;
+   }
+
+   if(fitincard)return 0;
+   if(fitinagp)return 1;
+
+   if(totalcard && totalagp)
+   {
+     int ages;
+     int ratio = (totalcard > totalagp) ? totalcard / totalagp : totalagp / totalcard;
+     ages = mmesa->sarea->texAge[0] + mmesa->sarea->texAge[1];
+     if( (ages % ratio) == 0)return totalcard > totalagp ? 1 : 0;
+     else return totalcard > totalagp ? 0 : 1;
+   }
+
+   if(totalagp) return 1;
+   return 0;
+}
+
+
+int mgaUploadTexImages( mgaContextPtr mmesa, mgaTextureObjectPtr t )
+{
+   int heap;
+   int i;
+   int ofs;
+
+   heap = t->heap = mgaChooseTexHeap( mmesa, t );
+
+   /* Do we need to eject LRU texture objects?
+    */
+   if (!t->MemBlock) {
+      while (1)
+      {
+	 mgaTextureObjectPtr tmp = mmesa->TexObjList[heap].prev;
+
+	 t->MemBlock = mmAllocMem( mmesa->texHeap[heap],
+				   t->totalSize,
+				   6, 0 );
+	 if (t->MemBlock)
+	    break;
+
+	 if (mmesa->TexObjList[heap].prev->bound) {
+	    fprintf(stderr, "Hit bound texture in upload\n");
+	    return -1;
+	 }
+
+	 if (mmesa->TexObjList[heap].prev ==
+	     &(mmesa->TexObjList[heap]))
+	 {
+	    fprintf(stderr, "Failed to upload texture, sz %d\n", t->totalSize);
+	    mmDumpMemInfo( mmesa->texHeap[heap] );
+	    return -1;
+	 }
+
+	 mgaDestroyTexObj( mmesa, tmp );
+      }
+
+      ofs = t->MemBlock->ofs
+	 + mmesa->mgaScreen->textureOffset[heap]
+	 ;
+
+      t->setup.texorg  = ofs;
+      t->setup.texorg1 = ofs + t->offsets[1];
+      t->setup.texorg2 = ofs + t->offsets[2];
+      t->setup.texorg3 = ofs + t->offsets[3];
+      t->setup.texorg4 = ofs + t->offsets[4];
+
+      mmesa->dirty |= MGA_UPLOAD_CONTEXT;
+   }
+
+   /* Let the world know we've used this memory recently.
+    */
+   mgaUpdateTexLRU( mmesa, t );
+
+
+   if (MGA_DEBUG&DEBUG_VERBOSE_LRU)
+      fprintf(stderr, "dispatch age: %d age freed memory: %d\n",
+	      GET_DISPATCH_AGE(mmesa), mmesa->dirtyAge);
+
+   if (mmesa->dirtyAge >= GET_DISPATCH_AGE(mmesa))
+      mgaWaitAgeLocked( mmesa, mmesa->dirtyAge );
+
+   if (t->dirty_images) {
+      if (MGA_DEBUG&DEBUG_VERBOSE_LRU)
+	 fprintf(stderr, "*");
+
+      for (i = 0 ; i <= t->lastLevel ; i++)
+	 if (t->dirty_images & (1<<i))
+	    mgaUploadTexLevel( mmesa, t, i );
+   }
+
+
+   t->dirty_images = 0;
+   return 0;
+}

src/mesa/drivers/dri/mga/mgatris.c

@@ -0,0 +1,915 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatris.c,v 1.10 2002/10/30 12:51:36 alanh Exp $ */
+
+#include <stdio.h>
+#include <math.h>
+
+#include "mtypes.h"
+#include "macros.h"
+#include "colormac.h"
+#include "swrast/swrast.h"
+#include "swrast_setup/swrast_setup.h"
+#include "tnl/t_context.h"
+#include "tnl/t_pipeline.h"
+
+#include "mm.h"
+#include "mgacontext.h"
+#include "mgaioctl.h"
+#include "mgatris.h"
+#include "mgavb.h"
+#include "mgastate.h"
+
+
+static void mgaRenderPrimitive( GLcontext *ctx, GLenum prim );
+
+/***********************************************************************
+ *                 Functions to draw basic primitives                  *
+ ***********************************************************************/
+
+
+#if defined (USE_X86_ASM)
+#define EMIT_VERT( j, vb, vertex_size, v )		\
+do {	int __tmp;					\
+	__asm__ __volatile__( "rep ; movsl"		\
+			 : "=%c" (j), "=D" (vb), "=S" (__tmp)		\
+			 : "0" (vertex_size), 		\
+			   "D" ((long)vb), 		\
+			   "S" ((long)v));		\
+} while (0)
+#else
+#define EMIT_VERT( j, vb, vertex_size, v )	\
+do {						\
+   for ( j = 0 ; j < vertex_size ; j++ )	\
+      vb[j] = (v)->ui[j];			\
+   vb += vertex_size;				\
+} while (0)
+#endif
+
+static void __inline__ mga_draw_triangle( mgaContextPtr mmesa,
+					   mgaVertexPtr v0,
+					   mgaVertexPtr v1,
+					   mgaVertexPtr v2 )
+{
+   GLuint vertex_size = mmesa->vertex_size;
+   GLuint *vb = mgaAllocDmaLow( mmesa, 3 * 4 * vertex_size );
+   int j;
+
+   EMIT_VERT( j, vb, vertex_size, v0 );
+   EMIT_VERT( j, vb, vertex_size, v1 );
+   EMIT_VERT( j, vb, vertex_size, v2 );
+}
+
+
+static void __inline__ mga_draw_quad( mgaContextPtr mmesa,
+				       mgaVertexPtr v0,
+				       mgaVertexPtr v1,
+				       mgaVertexPtr v2,
+				       mgaVertexPtr v3 )
+{
+   GLuint vertex_size = mmesa->vertex_size;
+   GLuint *vb = mgaAllocDmaLow( mmesa, 6 * 4 * vertex_size );
+   int j;
+
+   EMIT_VERT( j, vb, vertex_size, v0 );
+   EMIT_VERT( j, vb, vertex_size, v1 );
+   EMIT_VERT( j, vb, vertex_size, v3 );
+   EMIT_VERT( j, vb, vertex_size, v1 );
+   EMIT_VERT( j, vb, vertex_size, v2 );
+   EMIT_VERT( j, vb, vertex_size, v3 );
+}
+
+
+static __inline__ void mga_draw_point( mgaContextPtr mmesa,
+					mgaVertexPtr tmp )
+{
+   GLfloat sz = mmesa->glCtx->Point._Size * .5;
+   int vertex_size = mmesa->vertex_size;
+   GLuint *vb = mgaAllocDmaLow( mmesa, 6 * 4 * vertex_size );
+   int j;
+   
+#if 0
+   v0->v.x += PNT_X_OFFSET - TRI_X_OFFSET;
+   v0->v.y += PNT_Y_OFFSET - TRI_Y_OFFSET;
+#endif
+
+   /* Draw a point as two triangles.
+    */
+   *(float *)&vb[0] = tmp->v.x - sz;
+   *(float *)&vb[1] = tmp->v.y - sz;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = tmp->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = tmp->v.x + sz;
+   *(float *)&vb[1] = tmp->v.y - sz;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = tmp->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = tmp->v.x + sz;
+   *(float *)&vb[1] = tmp->v.y + sz;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = tmp->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = tmp->v.x + sz;
+   *(float *)&vb[1] = tmp->v.y + sz;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = tmp->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = tmp->v.x - sz;
+   *(float *)&vb[1] = tmp->v.y + sz;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = tmp->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = tmp->v.x - sz;
+   *(float *)&vb[1] = tmp->v.y - sz;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = tmp->ui[j];
+
+#if 0
+   v0->v.x -= PNT_X_OFFSET - TRI_X_OFFSET;
+   v0->v.y -= PNT_Y_OFFSET - TRI_Y_OFFSET;
+#endif
+}
+
+
+static __inline__ void mga_draw_line( mgaContextPtr mmesa,
+				      mgaVertexPtr v0,
+				      mgaVertexPtr v1 )
+{
+   GLuint vertex_size = mmesa->vertex_size;
+   GLuint *vb = mgaAllocDmaLow( mmesa, 6 * 4 * vertex_size );
+   GLfloat dx, dy, ix, iy;
+   GLfloat width = mmesa->glCtx->Line._Width;
+   GLint j;
+
+#if 0
+   v0->v.x += LINE_X_OFFSET - TRI_X_OFFSET;
+   v0->v.y += LINE_Y_OFFSET - TRI_Y_OFFSET;
+   v1->v.x += LINE_X_OFFSET - TRI_X_OFFSET;
+   v1->v.y += LINE_Y_OFFSET - TRI_Y_OFFSET;
+#endif
+
+   dx = v0->v.x - v1->v.x;
+   dy = v0->v.y - v1->v.y;
+   
+   ix = width * .5; iy = 0;
+   if (dx * dx > dy * dy) {
+      iy = ix; ix = 0;
+   }
+
+   *(float *)&vb[0] = v0->v.x - ix;
+   *(float *)&vb[1] = v0->v.y - iy;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = v0->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = v1->v.x + ix;
+   *(float *)&vb[1] = v1->v.y + iy;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = v1->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = v0->v.x + ix;
+   *(float *)&vb[1] = v0->v.y + iy;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = v0->ui[j];
+   vb += vertex_size;
+	 
+   *(float *)&vb[0] = v0->v.x - ix;
+   *(float *)&vb[1] = v0->v.y - iy;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = v0->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = v1->v.x - ix;
+   *(float *)&vb[1] = v1->v.y - iy;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = v1->ui[j];
+   vb += vertex_size;
+
+   *(float *)&vb[0] = v1->v.x + ix;
+   *(float *)&vb[1] = v1->v.y + iy;
+   for (j = 2 ; j < vertex_size ; j++) 
+      vb[j] = v1->ui[j];
+   vb += vertex_size;
+
+#if 0
+   v0->v.x -= LINE_X_OFFSET - TRI_X_OFFSET;
+   v0->v.y -= LINE_Y_OFFSET - TRI_Y_OFFSET;
+   v1->v.x -= LINE_X_OFFSET - TRI_X_OFFSET;
+   v1->v.y -= LINE_Y_OFFSET - TRI_Y_OFFSET;
+#endif
+}
+
+/***********************************************************************
+ *          Macros for t_dd_tritmp.h to draw basic primitives          *
+ ***********************************************************************/
+
+#define TRI( a, b, c )				\
+do {						\
+   if (DO_FALLBACK)				\
+      mmesa->draw_tri( mmesa, a, b, c );	\
+   else						\
+      mga_draw_triangle( mmesa, a, b, c );	\
+} while (0)
+
+#define QUAD( a, b, c, d )			\
+do {						\
+   if (DO_FALLBACK) {				\
+      mmesa->draw_tri( mmesa, a, b, d );	\
+      mmesa->draw_tri( mmesa, b, c, d );	\
+   } else {					\
+      mga_draw_quad( mmesa, a, b, c, d );	\
+   }						\
+} while (0)
+
+#define LINE( v0, v1 )				\
+do {						\
+   if (DO_FALLBACK)				\
+      mmesa->draw_line( mmesa, v0, v1 );	\
+   else {					\
+      mga_draw_line( mmesa, v0, v1 );		\
+   }						\
+} while (0)
+
+#define POINT( v0 )				\
+do {						\
+   if (DO_FALLBACK)				\
+      mmesa->draw_point( mmesa, v0 );		\
+   else {					\
+      mga_draw_point( mmesa, v0 );		\
+   }						\
+} while (0)
+
+
+/***********************************************************************
+ *              Fallback to swrast for basic primitives                *
+ ***********************************************************************/
+
+/* This code is hit only when a mix of accelerated and unaccelerated
+ * primitives are being drawn, and only for the unaccelerated
+ * primitives.  
+ */
+
+static void 
+mga_fallback_tri( mgaContextPtr mmesa, 
+		   mgaVertex *v0, 
+		   mgaVertex *v1, 
+		   mgaVertex *v2 )
+{
+   GLcontext *ctx = mmesa->glCtx;
+   SWvertex v[3];
+   mga_translate_vertex( ctx, v0, &v[0] );
+   mga_translate_vertex( ctx, v1, &v[1] );
+   mga_translate_vertex( ctx, v2, &v[2] );
+   _swrast_Triangle( ctx, &v[0], &v[1], &v[2] );
+}
+
+
+static void 
+mga_fallback_line( mgaContextPtr mmesa,
+		    mgaVertex *v0,
+		    mgaVertex *v1 )
+{
+   GLcontext *ctx = mmesa->glCtx;
+   SWvertex v[2];
+   mga_translate_vertex( ctx, v0, &v[0] );
+   mga_translate_vertex( ctx, v1, &v[1] );
+   _swrast_Line( ctx, &v[0], &v[1] );
+}
+
+
+static void 
+mga_fallback_point( mgaContextPtr mmesa, 
+		     mgaVertex *v0 )
+{
+   GLcontext *ctx = mmesa->glCtx;
+   SWvertex v[1];
+   mga_translate_vertex( ctx, v0, &v[0] );
+   _swrast_Point( ctx, &v[0] );
+}
+
+/***********************************************************************
+ *              Build render functions from dd templates               *
+ ***********************************************************************/
+
+
+#define MGA_UNFILLED_BIT    0x1
+#define MGA_OFFSET_BIT	    0x2
+#define MGA_TWOSIDE_BIT     0x4
+#define MGA_FLAT_BIT        0x8	/* mga can't flatshade? */
+#define MGA_FALLBACK_BIT    0x10
+#define MGA_MAX_TRIFUNC     0x20
+
+static struct {
+   points_func	        points;
+   line_func		line;
+   triangle_func	triangle;
+   quad_func		quad;
+} rast_tab[MGA_MAX_TRIFUNC];
+
+#define DO_FALLBACK (IND & MGA_FALLBACK_BIT)
+#define DO_OFFSET   (IND & MGA_OFFSET_BIT)
+#define DO_UNFILLED (IND & MGA_UNFILLED_BIT)
+#define DO_TWOSIDE  (IND & MGA_TWOSIDE_BIT)
+#define DO_FLAT     (IND & MGA_FLAT_BIT)
+#define DO_TRI       1
+#define DO_QUAD      1
+#define DO_LINE      1
+#define DO_POINTS    1
+#define DO_FULL_QUAD 1
+
+#define HAVE_RGBA         1
+#define HAVE_BACK_COLORS  0
+#define HAVE_SPEC         1
+#define HAVE_HW_FLATSHADE 0
+#define VERTEX mgaVertex
+#define TAB rast_tab
+
+#define MGA_COLOR( dst, src )			\
+do {						\
+   dst[0] = src[2];				\
+   dst[1] = src[1];				\
+   dst[2] = src[0];				\
+   dst[3] = src[3];				\
+} while (0)
+
+#define MGA_SPEC( dst, src )			\
+do {						\
+   dst[0] = src[2];				\
+   dst[1] = src[1];				\
+   dst[2] = src[0];				\
+} while (0)
+
+#define DEPTH_SCALE mmesa->depth_scale
+#define UNFILLED_TRI unfilled_tri
+#define UNFILLED_QUAD unfilled_quad
+#define VERT_X(_v) _v->v.x
+#define VERT_Y(_v) _v->v.y
+#define VERT_Z(_v) _v->v.z
+#define AREA_IS_CCW( a ) (a > 0)
+#define GET_VERTEX(e) (mmesa->verts + (e<<mmesa->vertex_stride_shift))
+
+#define VERT_SET_RGBA( v, c )  MGA_COLOR( v->ub4[4], c )
+#define VERT_COPY_RGBA( v0, v1 ) v0->ui[4] = v1->ui[4]
+#define VERT_SAVE_RGBA( idx )  color[idx] = v[idx]->ui[4]
+#define VERT_RESTORE_RGBA( idx ) v[idx]->ui[4] = color[idx]   
+
+#define VERT_SET_SPEC( v, c )  MGA_SPEC( v->ub4[5], c )
+#define VERT_COPY_SPEC( v0, v1 ) COPY_3V(v0->ub4[5], v1->ub4[5])
+#define VERT_SAVE_SPEC( idx )  spec[idx] = v[idx]->ui[5]
+#define VERT_RESTORE_SPEC( idx ) v[idx]->ui[5] = spec[idx]   
+
+#define LOCAL_VARS(n)					\
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);		\
+   GLuint color[n], spec[n];				\
+   (void) color; (void) spec;
+
+
+
+/***********************************************************************
+ *            Functions to draw basic unfilled primitives              *
+ ***********************************************************************/
+
+#define RASTERIZE(x) if (mmesa->raster_primitive != x) \
+                        mgaRasterPrimitive( ctx, x, MGA_WA_TRIANGLES )
+#define RENDER_PRIMITIVE mmesa->render_primitive
+#define IND MGA_FALLBACK_BIT
+#define TAG(x) x
+#include "tnl_dd/t_dd_unfilled.h"
+#undef IND
+
+/***********************************************************************
+ *                 Functions to draw GL primitives                     *
+ ***********************************************************************/
+
+#define IND (0)
+#define TAG(x) x
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT)
+#define TAG(x) x##_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT)
+#define TAG(x) x##_twoside
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT)
+#define TAG(x) x##_twoside_offset
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_UNFILLED_BIT)
+#define TAG(x) x##_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT|MGA_UNFILLED_BIT)
+#define TAG(x) x##_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_UNFILLED_BIT)
+#define TAG(x) x##_twoside_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT|MGA_UNFILLED_BIT)
+#define TAG(x) x##_twoside_offset_unfilled
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_FALLBACK_BIT)
+#define TAG(x) x##_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT|MGA_FALLBACK_BIT)
+#define TAG(x) x##_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_FALLBACK_BIT)
+#define TAG(x) x##_twoside_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT|MGA_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_UNFILLED_BIT|MGA_FALLBACK_BIT)
+#define TAG(x) x##_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT|MGA_UNFILLED_BIT|MGA_FALLBACK_BIT)
+#define TAG(x) x##_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_UNFILLED_BIT|MGA_FALLBACK_BIT)
+#define TAG(x) x##_twoside_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT|MGA_UNFILLED_BIT| \
+	     MGA_FALLBACK_BIT)
+#define TAG(x) x##_twoside_offset_unfilled_fallback
+#include "tnl_dd/t_dd_tritmp.h"
+
+
+/* Mga doesn't support provoking-vertex flat-shading?
+ */
+#define IND (MGA_FLAT_BIT)
+#define TAG(x) x##_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_offset_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_offset_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_UNFILLED_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_unfilled_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT|MGA_UNFILLED_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_offset_unfilled_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_UNFILLED_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_unfilled_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT|MGA_UNFILLED_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_offset_unfilled_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT|MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_offset_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT|MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_offset_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_UNFILLED_BIT|MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_unfilled_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_OFFSET_BIT|MGA_UNFILLED_BIT|MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_offset_unfilled_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_UNFILLED_BIT|MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_unfilled_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+#define IND (MGA_TWOSIDE_BIT|MGA_OFFSET_BIT|MGA_UNFILLED_BIT| \
+	     MGA_FALLBACK_BIT|MGA_FLAT_BIT)
+#define TAG(x) x##_twoside_offset_unfilled_fallback_flat
+#include "tnl_dd/t_dd_tritmp.h"
+
+
+static void init_rast_tab( void )
+{
+   init();
+   init_offset();
+   init_twoside();
+   init_twoside_offset();
+   init_unfilled();
+   init_offset_unfilled();
+   init_twoside_unfilled();
+   init_twoside_offset_unfilled();
+   init_fallback();
+   init_offset_fallback();
+   init_twoside_fallback();
+   init_twoside_offset_fallback();
+   init_unfilled_fallback();
+   init_offset_unfilled_fallback();
+   init_twoside_unfilled_fallback();
+   init_twoside_offset_unfilled_fallback();
+
+   init_flat();
+   init_offset_flat();
+   init_twoside_flat();
+   init_twoside_offset_flat();
+   init_unfilled_flat();
+   init_offset_unfilled_flat();
+   init_twoside_unfilled_flat();
+   init_twoside_offset_unfilled_flat();
+   init_fallback_flat();
+   init_offset_fallback_flat();
+   init_twoside_fallback_flat();
+   init_twoside_offset_fallback_flat();
+   init_unfilled_fallback_flat();
+   init_offset_unfilled_fallback_flat();
+   init_twoside_unfilled_fallback_flat();
+   init_twoside_offset_unfilled_fallback_flat();
+}
+
+/**********************************************************************/
+/*                 Render whole begin/end objects                     */
+/**********************************************************************/
+
+
+#define VERT(x) (mgaVertex *)(vertptr + ((x)<<vertshift))
+#define RENDER_POINTS( start, count )		\
+   for ( ; start < count ; start++)		\
+      mga_draw_point( mmesa, VERT(ELT(start)) );
+#define RENDER_LINE( v0, v1 ) \
+   mga_draw_line( mmesa, VERT(v0), VERT(v1) )
+#define RENDER_TRI( v0, v1, v2 )  \
+   mga_draw_triangle( mmesa, VERT(v0), VERT(v1), VERT(v2) )
+#define RENDER_QUAD( v0, v1, v2, v3 ) \
+   mga_draw_quad( mmesa, VERT(v0), VERT(v1), VERT(v2), VERT(v3) )
+#define INIT(x) mgaRenderPrimitive( ctx, x )
+#undef LOCAL_VARS
+#define LOCAL_VARS						\
+    mgaContextPtr mmesa = MGA_CONTEXT(ctx);			\
+    GLubyte *vertptr = (GLubyte *)mmesa->verts;			\
+    const GLuint vertshift = mmesa->vertex_stride_shift;       	\
+    const GLuint * const elt = TNL_CONTEXT(ctx)->vb.Elts;	\
+    (void) elt;
+#define RESET_STIPPLE 
+#define RESET_OCCLUSION 
+#define PRESERVE_VB_DEFS
+#define ELT(x) x
+#define TAG(x) mga_##x##_verts
+#include "tnl/t_vb_rendertmp.h"
+#undef ELT
+#undef TAG
+#define TAG(x) mga_##x##_elts
+#define ELT(x) elt[x]
+#include "tnl/t_vb_rendertmp.h"
+
+
+/**********************************************************************/
+/*                   Render clipped primitives                        */
+/**********************************************************************/
+
+
+
+static void mgaRenderClippedPoly( GLcontext *ctx, const GLuint *elts, GLuint n )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   struct vertex_buffer *VB = &tnl->vb;
+   GLuint prim = mmesa->render_primitive;
+
+   /* Render the new vertices as an unclipped polygon. 
+    */
+   {
+      GLuint *tmp = VB->Elts;
+      VB->Elts = (GLuint *)elts;
+      tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, PRIM_BEGIN|PRIM_END );
+      VB->Elts = tmp;
+   }
+
+   /* Restore the render primitive
+    */
+   if (prim != GL_POLYGON)
+      tnl->Driver.Render.PrimitiveNotify( ctx, prim );
+}
+
+static void mgaRenderClippedLine( GLcontext *ctx, GLuint ii, GLuint jj )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   tnl->Driver.Render.Line( ctx, ii, jj );
+}
+
+static void mgaFastRenderClippedPoly( GLcontext *ctx, const GLuint *elts, 
+				       GLuint n )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   GLuint vertex_size = mmesa->vertex_size;
+   GLuint *vb = mgaAllocDmaLow( mmesa, (n-2) * 3 * 4 * vertex_size );
+   GLubyte *vertptr = (GLubyte *)mmesa->verts;			
+   const GLuint vertshift = mmesa->vertex_stride_shift;       	
+   const GLuint *start = (const GLuint *)VERT(elts[0]);
+   int i,j;
+
+   for (i = 2 ; i < n ; i++) {
+      EMIT_VERT( j, vb, vertex_size, (mgaVertexPtr) VERT(elts[i-1]) );
+      EMIT_VERT( j, vb, vertex_size, (mgaVertexPtr) VERT(elts[i]) );
+      EMIT_VERT( j, vb, vertex_size, (mgaVertexPtr) start );
+   }
+}
+
+/**********************************************************************/
+/*                    Choose render functions                         */
+/**********************************************************************/
+
+
+
+#define _MGA_NEW_RENDERSTATE (_DD_NEW_LINE_STIPPLE |		\
+			       _DD_NEW_TRI_UNFILLED |		\
+			       _DD_NEW_TRI_LIGHT_TWOSIDE |	\
+			       _DD_NEW_TRI_OFFSET |		\
+			       _DD_NEW_TRI_STIPPLE |		\
+			       _NEW_POLYGONSTIPPLE)
+
+
+#define POINT_FALLBACK (DD_POINT_SMOOTH)
+#define LINE_FALLBACK (DD_LINE_SMOOTH | DD_LINE_STIPPLE)
+#define TRI_FALLBACK (DD_TRI_SMOOTH | DD_TRI_UNFILLED)
+#define ANY_FALLBACK_FLAGS (POINT_FALLBACK|LINE_FALLBACK|TRI_FALLBACK| \
+                            DD_TRI_STIPPLE)
+#define ANY_RASTER_FLAGS (DD_FLATSHADE|DD_TRI_LIGHT_TWOSIDE|DD_TRI_OFFSET| \
+                          DD_TRI_UNFILLED)
+
+static void mgaChooseRenderState(GLcontext *ctx)
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLuint flags = ctx->_TriangleCaps;
+   GLuint index = 0;
+
+   if (flags & (ANY_FALLBACK_FLAGS|ANY_RASTER_FLAGS)) {
+      if (flags & ANY_RASTER_FLAGS) {
+	 if (flags & DD_TRI_LIGHT_TWOSIDE)    index |= MGA_TWOSIDE_BIT;
+	 if (flags & DD_TRI_OFFSET)	      index |= MGA_OFFSET_BIT;
+	 if (flags & DD_TRI_UNFILLED)	      index |= MGA_UNFILLED_BIT;
+	 if (flags & DD_FLATSHADE)	      index |= MGA_FLAT_BIT;
+      }
+
+      mmesa->draw_point = mga_draw_point;
+      mmesa->draw_line = mga_draw_line;
+      mmesa->draw_tri = mga_draw_triangle;
+
+      /* Hook in fallbacks for specific primitives.
+       */
+      if (flags & ANY_FALLBACK_FLAGS)
+      {
+	 if (flags & POINT_FALLBACK) 
+	    mmesa->draw_point = mga_fallback_point;
+	 
+	 if (flags & LINE_FALLBACK) 
+	    mmesa->draw_line = mga_fallback_line;
+	 
+	 if (flags & TRI_FALLBACK) 
+	    mmesa->draw_tri = mga_fallback_tri;
+	 
+	 if ((flags & DD_TRI_STIPPLE) && !mmesa->haveHwStipple)
+	    mmesa->draw_tri = mga_fallback_tri;
+      
+	 index |= MGA_FALLBACK_BIT;
+      }
+   }
+
+   if (mmesa->RenderIndex != index) {
+      mmesa->RenderIndex = index;
+
+      tnl->Driver.Render.Points = rast_tab[index].points;
+      tnl->Driver.Render.Line = rast_tab[index].line;
+      tnl->Driver.Render.Triangle = rast_tab[index].triangle;
+      tnl->Driver.Render.Quad = rast_tab[index].quad;
+         
+      if (index == 0) {
+	 tnl->Driver.Render.PrimTabVerts = mga_render_tab_verts;
+	 tnl->Driver.Render.PrimTabElts = mga_render_tab_elts;
+	 tnl->Driver.Render.ClippedLine = line; /* from tritmp.h */
+	 tnl->Driver.Render.ClippedPolygon = mgaFastRenderClippedPoly;
+      } else {
+	 tnl->Driver.Render.PrimTabVerts = _tnl_render_tab_verts;
+	 tnl->Driver.Render.PrimTabElts = _tnl_render_tab_elts;
+	 tnl->Driver.Render.ClippedLine = mgaRenderClippedLine;
+	 tnl->Driver.Render.ClippedPolygon = mgaRenderClippedPoly;
+      }
+   }
+}
+
+/**********************************************************************/
+/*                Runtime render state and callbacks                  */
+/**********************************************************************/
+
+
+static void mgaRunPipeline( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+
+   if (mmesa->new_state) {
+      mgaDDUpdateHwState( ctx );
+   }
+
+   if (!mmesa->Fallback && mmesa->new_gl_state) {
+      if (mmesa->new_gl_state & _MGA_NEW_RASTERSETUP)
+	 mgaChooseVertexState( ctx );
+      
+      if (mmesa->new_gl_state & _MGA_NEW_RENDERSTATE)
+	 mgaChooseRenderState( ctx );
+      
+      mmesa->new_gl_state = 0;
+
+      /* Circularity: mgaDDUpdateHwState can affect mmesa->Fallback,
+       * but mgaChooseVertexState can affect mmesa->new_state.  Hence
+       * the second check.  (Fix this...)
+       */
+      if (mmesa->new_state) {
+	 mgaDDUpdateHwState( ctx );
+      }
+   }
+
+   _tnl_run_pipeline( ctx );
+}
+
+
+static GLenum reduced_prim[GL_POLYGON+1] = {
+   GL_POINTS,
+   GL_LINES,
+   GL_LINES,
+   GL_LINES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES,
+   GL_TRIANGLES
+};
+
+
+
+/* Always called between RenderStart and RenderFinish --> We already
+ * hold the lock.
+ */
+void mgaRasterPrimitive( GLcontext *ctx, GLenum prim, GLuint hwprim )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+
+   FLUSH_BATCH( mmesa );
+   mmesa->raster_primitive = prim;
+/*     mmesa->hw_primitive = hwprim; */
+   mmesa->hw_primitive = MGA_WA_TRIANGLES; /* disable mgarender.c for now */
+   mgaUpdateCull(ctx);   
+
+   if (ctx->Polygon.StippleFlag && mmesa->haveHwStipple)
+   {
+      mmesa->dirty |= MGA_UPLOAD_CONTEXT;
+      if (mmesa->raster_primitive == GL_TRIANGLES)
+	 mmesa->setup.dwgctl |= mmesa->poly_stipple;
+      else
+	 mmesa->setup.dwgctl &= ~(0xf<<20);
+   }
+}
+
+
+
+/* Determine the rasterized primitive when not drawing unfilled 
+ * polygons.
+ *
+ * Used only for the default render stage which always decomposes
+ * primitives to trianges/lines/points.  For the accelerated stage,
+ * which renders strips as strips, the equivalent calculations are
+ * performed in mgarender.c.
+ */
+static void mgaRenderPrimitive( GLcontext *ctx, GLenum prim )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLuint rprim = reduced_prim[prim];
+
+   mmesa->render_primitive = prim;
+
+   if (rprim == GL_TRIANGLES && (ctx->_TriangleCaps & DD_TRI_UNFILLED))
+      return;
+       
+   if (mmesa->raster_primitive != rprim) {
+      mgaRasterPrimitive( ctx, rprim, MGA_WA_TRIANGLES );
+   }
+}
+
+static void mgaRenderFinish( GLcontext *ctx )
+{
+   if (MGA_CONTEXT(ctx)->RenderIndex & MGA_FALLBACK_BIT)
+      _swrast_flush( ctx );
+}
+
+
+
+/**********************************************************************/
+/*               Manage total rasterization fallbacks                 */
+/**********************************************************************/
+
+void mgaFallback( GLcontext *ctx, GLuint bit, GLboolean mode )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLuint oldfallback = mmesa->Fallback;
+
+   if (mode) {
+      mmesa->Fallback |= bit;
+      if (oldfallback == 0) {
+	 FLUSH_BATCH(mmesa);
+	 _swsetup_Wakeup( ctx );
+	 mmesa->RenderIndex = ~0;
+      }
+   }
+   else {
+      mmesa->Fallback &= ~bit;
+      if (oldfallback == bit) {
+	 _swrast_flush( ctx );
+	 tnl->Driver.Render.Start = mgaCheckTexSizes;
+	 tnl->Driver.Render.PrimitiveNotify = mgaRenderPrimitive;
+	 tnl->Driver.Render.Finish = mgaRenderFinish;
+	 tnl->Driver.Render.BuildVertices = mgaBuildVertices;
+	 mmesa->new_gl_state |= (_MGA_NEW_RENDERSTATE |
+				 _MGA_NEW_RASTERSETUP);
+      }
+   }
+}
+
+
+void mgaDDInitTriFuncs( GLcontext *ctx )
+{
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   static int firsttime = 1;
+   if (firsttime) {
+      init_rast_tab();
+      firsttime = 0;
+   }
+
+   mmesa->RenderIndex = ~0;
+	
+   tnl->Driver.RunPipeline               = mgaRunPipeline;
+   tnl->Driver.Render.Start              = mgaCheckTexSizes;
+   tnl->Driver.Render.Finish             = mgaRenderFinish; 
+   tnl->Driver.Render.PrimitiveNotify    = mgaRenderPrimitive;
+   tnl->Driver.Render.ResetLineStipple   = _swrast_ResetLineStipple;
+   tnl->Driver.Render.BuildVertices      = mgaBuildVertices;
+   tnl->Driver.Render.Multipass		 = NULL;
+}

src/mesa/drivers/dri/mga/mgatris.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgatris.h,v 1.10 2002/10/30 12:51:36 alanh Exp $ */
+
+#ifndef MGATRIS_INC
+#define MGATRIS_INC
+
+#include "mtypes.h"
+
+extern void mgaDDInitTriFuncs( GLcontext *ctx );
+
+extern void mgaRasterPrimitive( GLcontext *ctx, GLenum prim, GLuint hwprim );
+
+extern void mgaFallback( GLcontext *ctx, GLuint bit, GLboolean mode );
+#define FALLBACK( ctx, bit, mode ) mgaFallback( ctx, bit, mode )
+
+
+
+#endif

src/mesa/drivers/dri/mga/mgavb.c

@@ -0,0 +1,497 @@
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgavb.c,v 1.15 2003/03/26 20:43:49 tsi Exp $ */
+
+#include "mgacontext.h"
+#include "mgavb.h"
+#include "mgatris.h"
+#include "mgaioctl.h"
+#include "mga_xmesa.h"
+
+#include "glheader.h"
+#include "mtypes.h"
+//#include "mem.h"
+#include "macros.h"
+#include "colormac.h"
+#include "mmath.h"
+
+#include "tnl/t_context.h"
+#include "swrast_setup/swrast_setup.h"
+#include "swrast/swrast.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+
+#define MGA_TEX1_BIT       0x1
+#define MGA_TEX0_BIT       0x2	
+#define MGA_RGBA_BIT       0x4
+#define MGA_SPEC_BIT       0x8
+#define MGA_FOG_BIT	   0x10
+#define MGA_XYZW_BIT       0x20
+#define MGA_PTEX_BIT       0x40
+#define MGA_MAX_SETUP      0x80
+
+static struct {
+   void                (*emit)( GLcontext *, GLuint, GLuint, void *, GLuint );
+   interp_func		interp;
+   copy_pv_func	        copy_pv;
+   GLboolean           (*check_tex_sizes)( GLcontext *ctx );
+   GLuint               vertex_size;
+   GLuint               vertex_stride_shift;
+   GLuint               vertex_format;
+} setup_tab[MGA_MAX_SETUP];
+
+
+#define TINY_VERTEX_FORMAT      0
+#define NOTEX_VERTEX_FORMAT     0
+#define TEX0_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F)
+#define TEX1_VERTEX_FORMAT      (MGA_A|MGA_S|MGA_F|MGA_T2)
+#define PROJ_TEX1_VERTEX_FORMAT 0
+#define TEX2_VERTEX_FORMAT      0
+#define TEX3_VERTEX_FORMAT      0
+#define PROJ_TEX3_VERTEX_FORMAT 0
+
+#define DO_XYZW (IND & MGA_XYZW_BIT)
+#define DO_RGBA (IND & MGA_RGBA_BIT)
+#define DO_SPEC (IND & MGA_SPEC_BIT)
+#define DO_FOG  (IND & MGA_FOG_BIT)
+#define DO_TEX0 (IND & MGA_TEX0_BIT)
+#define DO_TEX1 (IND & MGA_TEX1_BIT)
+#define DO_TEX2 0
+#define DO_TEX3 0
+#define DO_PTEX (IND & MGA_PTEX_BIT)
+
+			       
+#define VERTEX mgaVertex
+#define VERTEX_COLOR mga_color_t
+#define LOCALVARS mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+#define GET_VIEWPORT_MAT() mmesa->hw_viewport
+#define GET_TEXSOURCE(n)  mmesa->tmu_source[n]
+#define GET_VERTEX_FORMAT() mmesa->vertex_format
+#define GET_VERTEX_STORE() ((GLubyte *)mmesa->verts)
+#define GET_VERTEX_STRIDE_SHIFT() mmesa->vertex_stride_shift
+#define GET_UBYTE_COLOR_STORE() &mmesa->UbyteColor
+#define GET_UBYTE_SPEC_COLOR_STORE() &mmesa->UbyteSecondaryColor
+
+#define HAVE_HW_VIEWPORT    0
+#define HAVE_HW_DIVIDE      0
+#define HAVE_RGBA_COLOR     0
+#define HAVE_TINY_VERTICES  0
+#define HAVE_NOTEX_VERTICES 0
+#define HAVE_TEX0_VERTICES  1
+#define HAVE_TEX1_VERTICES  1
+#define HAVE_TEX2_VERTICES  0
+#define HAVE_TEX3_VERTICES  0
+#define HAVE_PTEX_VERTICES  0
+
+#define UNVIEWPORT_VARS					\
+   const GLfloat dx = - mmesa->drawX - SUBPIXEL_X;	\
+   const GLfloat dy = (mmesa->driDrawable->h + 		\
+		       mmesa->drawY + SUBPIXEL_Y);	\
+   const GLfloat sz = 1.0 / mmesa->depth_scale
+
+#define UNVIEWPORT_X(x)    x      + dx;
+#define UNVIEWPORT_Y(y)  - y      + dy;
+#define UNVIEWPORT_Z(z)    z * sz;
+
+#define PTEX_FALLBACK() FALLBACK(ctx, MGA_FALLBACK_TEXTURE, 1)
+
+
+#define IMPORT_FLOAT_COLORS mga_import_float_colors
+#define IMPORT_FLOAT_SPEC_COLORS mga_import_float_spec_colors
+
+#define INTERP_VERTEX setup_tab[MGA_CONTEXT(ctx)->SetupIndex].interp
+#define COPY_PV_VERTEX setup_tab[MGA_CONTEXT(ctx)->SetupIndex].copy_pv
+
+
+/***********************************************************************
+ *         Generate  pv-copying and translation functions              *
+ ***********************************************************************/
+
+#define TAG(x) mga_##x
+#include "tnl_dd/t_dd_vb.c"
+
+/***********************************************************************
+ *             Generate vertex emit and interp functions               *
+ ***********************************************************************/
+
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT)
+#define TAG(x) x##_wg
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT)
+#define TAG(x) x##_wgs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_wgt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_wgt0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
+#define TAG(x) x##_wgpt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_wgst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_wgst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
+#define TAG(x) x##_wgspt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT)
+#define TAG(x) x##_wgf
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
+#define TAG(x) x##_wgfs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_wgft0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_wgft0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
+#define TAG(x) x##_wgfpt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_wgfst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_wgfst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_XYZW_BIT|MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_PTEX_BIT)
+#define TAG(x) x##_wgfspt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_TEX0_BIT)
+#define TAG(x) x##_t0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_t0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_FOG_BIT)
+#define TAG(x) x##_f
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_FOG_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_ft0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_ft0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT)
+#define TAG(x) x##_g
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_SPEC_BIT)
+#define TAG(x) x##_gs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_gt0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_gt0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_gst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_gst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_FOG_BIT)
+#define TAG(x) x##_gf
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT)
+#define TAG(x) x##_gfs
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_gft0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_gft0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT)
+#define TAG(x) x##_gfst0
+#include "tnl_dd/t_dd_vbtmp.h"
+
+#define IND (MGA_RGBA_BIT|MGA_FOG_BIT|MGA_SPEC_BIT|MGA_TEX0_BIT|MGA_TEX1_BIT)
+#define TAG(x) x##_gfst0t1
+#include "tnl_dd/t_dd_vbtmp.h"
+
+
+static void init_setup_tab( void )
+{
+   init_wg();
+   init_wgs();
+   init_wgt0();
+   init_wgt0t1();
+   init_wgpt0();
+   init_wgst0();
+   init_wgst0t1();
+   init_wgspt0();
+   init_wgf();
+   init_wgfs();
+   init_wgft0();
+   init_wgft0t1();
+   init_wgfpt0();
+   init_wgfst0();
+   init_wgfst0t1();
+   init_wgfspt0();
+   init_t0();
+   init_t0t1();
+   init_f();
+   init_ft0();
+   init_ft0t1();
+   init_g();
+   init_gs();
+   init_gt0();
+   init_gt0t1();
+   init_gst0();
+   init_gst0t1();
+   init_gf();
+   init_gfs();
+   init_gft0();
+   init_gft0t1();
+   init_gfst0();
+   init_gfst0t1();
+}
+
+
+
+
+void mgaPrintSetupFlags(char *msg, GLuint flags )
+{
+   fprintf(stderr, "%s: %d %s%s%s%s%s%s\n",
+	   msg,
+	   (int)flags,
+	   (flags & MGA_XYZW_BIT)      ? " xyzw," : "", 
+	   (flags & MGA_RGBA_BIT)     ? " rgba," : "",
+	   (flags & MGA_SPEC_BIT)     ? " spec," : "",
+	   (flags & MGA_FOG_BIT)      ? " fog," : "",
+	   (flags & MGA_TEX0_BIT)     ? " tex-0," : "",
+	   (flags & MGA_TEX1_BIT)     ? " tex-1," : "");
+}
+
+
+void mgaCheckTexSizes( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+
+   /*fprintf(stderr, "%s\n", __FUNCTION__);*/
+
+   if (!setup_tab[mmesa->SetupIndex].check_tex_sizes(ctx)) {
+      mmesa->SetupIndex |= MGA_PTEX_BIT;
+      mmesa->SetupNewInputs = ~0;
+
+      if (!mmesa->Fallback &&
+	  !(ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED))) {
+	 tnl->Driver.Render.Interp = setup_tab[mmesa->SetupIndex].interp;
+	 tnl->Driver.Render.CopyPV = setup_tab[mmesa->SetupIndex].copy_pv;
+      }
+   }
+}
+
+
+void mgaBuildVertices( GLcontext *ctx, 
+		       GLuint start, 
+		       GLuint count,
+		       GLuint newinputs )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   GLubyte *v = ((GLubyte *)mmesa->verts + (start<<mmesa->vertex_stride_shift));
+   GLuint stride = 1<<mmesa->vertex_stride_shift;
+
+   newinputs |= mmesa->SetupNewInputs;
+   mmesa->SetupNewInputs = 0;
+
+   if (!newinputs)
+      return;
+
+   if (newinputs & VERT_BIT_CLIP) {
+      setup_tab[mmesa->SetupIndex].emit( ctx, start, count, v, stride );   
+   } else {
+      GLuint ind = 0;
+
+      if (newinputs & VERT_BIT_COLOR0)
+	 ind |= MGA_RGBA_BIT;
+      
+      if (newinputs & VERT_BIT_COLOR1)
+	 ind |= MGA_SPEC_BIT;
+
+      if (newinputs & VERT_BIT_TEX0) 
+	 ind |= MGA_TEX0_BIT;
+
+      if (newinputs & VERT_BIT_TEX1)
+	 ind |= MGA_TEX0_BIT|MGA_TEX1_BIT;
+
+      if (newinputs & VERT_BIT_FOG)
+	 ind |= MGA_FOG_BIT;
+
+      if (mmesa->SetupIndex & MGA_PTEX_BIT)
+	 ind = ~0;
+
+      ind &= mmesa->SetupIndex;
+
+      if (ind) {
+	 setup_tab[ind].emit( ctx, start, count, v, stride );   
+      }
+   }
+}
+
+
+void mgaChooseVertexState( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT( ctx );
+   TNLcontext *tnl = TNL_CONTEXT(ctx);
+   GLuint ind = MGA_XYZW_BIT|MGA_RGBA_BIT;
+
+   if (ctx->_TriangleCaps & DD_SEPARATE_SPECULAR) 
+      ind |= MGA_SPEC_BIT;
+
+   if (ctx->Fog.Enabled) 
+      ind |= MGA_FOG_BIT;
+   
+   if (ctx->Texture.Unit[1]._ReallyEnabled & (TEXTURE_1D_BIT|TEXTURE_2D_BIT)) {
+      if (ctx->Texture.Unit[0]._ReallyEnabled & (TEXTURE_1D_BIT|TEXTURE_2D_BIT)) {
+	 ind |= MGA_TEX1_BIT|MGA_TEX0_BIT;
+      }
+      else {
+	 ind |= MGA_TEX0_BIT;
+      }
+   }
+   else if (ctx->Texture.Unit[0]._ReallyEnabled & (TEXTURE_1D_BIT|TEXTURE_2D_BIT)) {
+      ind |= MGA_TEX0_BIT;
+   }
+   
+   mmesa->SetupIndex = ind;
+
+   if (ctx->_TriangleCaps & (DD_TRI_LIGHT_TWOSIDE|DD_TRI_UNFILLED)) {
+      tnl->Driver.Render.Interp = mga_interp_extras;
+      tnl->Driver.Render.CopyPV = mga_copy_pv_extras;
+   } else {
+      tnl->Driver.Render.Interp = setup_tab[ind].interp;
+      tnl->Driver.Render.CopyPV = setup_tab[ind].copy_pv;
+   }
+
+   if (setup_tab[ind].vertex_format != mmesa->vertex_format) {
+      FLUSH_BATCH(mmesa);      
+      mmesa->new_state |= MGA_NEW_WARP;
+      mmesa->dirty |= MGA_UPLOAD_PIPE;
+      mmesa->vertex_format = setup_tab[ind].vertex_format;
+      mmesa->vertex_size = setup_tab[ind].vertex_size;
+      mmesa->vertex_stride_shift = setup_tab[ind].vertex_stride_shift;
+   }
+}
+
+
+
+void mga_emit_contiguous_verts( GLcontext *ctx,
+				 GLuint start,
+				 GLuint count )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLuint vertex_size = mmesa->vertex_size * 4;
+   GLuint *dest = mgaAllocDmaLow( mmesa, (count-start) * vertex_size);
+   setup_tab[mmesa->SetupIndex].emit( ctx, start, count, dest, vertex_size );
+}
+				   
+
+
+void mgaInitVB( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   GLuint size = TNL_CONTEXT(ctx)->vb.Size;
+
+   mmesa->verts = (char *)ALIGN_MALLOC(size * sizeof(mgaVertex), 32);
+
+   {
+      static int firsttime = 1;
+      if (firsttime) {
+	 init_setup_tab();
+	 firsttime = 0;
+      }
+   }
+
+   mmesa->new_state |= MGA_NEW_WARP;
+   mmesa->dirty |= MGA_UPLOAD_PIPE;
+   mmesa->vertex_format = setup_tab[0].vertex_format;
+   mmesa->vertex_size = setup_tab[0].vertex_size;
+   mmesa->vertex_stride_shift = setup_tab[0].vertex_stride_shift;
+}
+
+
+void mgaFreeVB( GLcontext *ctx )
+{
+   mgaContextPtr mmesa = MGA_CONTEXT(ctx);
+   if (mmesa->verts) {
+      ALIGN_FREE(mmesa->verts);
+      mmesa->verts = 0;
+   }
+
+   if (mmesa->UbyteSecondaryColor.Ptr) {
+      ALIGN_FREE(mmesa->UbyteSecondaryColor.Ptr);
+      mmesa->UbyteSecondaryColor.Ptr = 0;
+   }
+
+   if (mmesa->UbyteColor.Ptr) {
+      ALIGN_FREE(mmesa->UbyteColor.Ptr);
+      mmesa->UbyteColor.Ptr = 0;
+   }
+}
+

src/mesa/drivers/dri/mga/mgavb.h

@@ -0,0 +1,65 @@
+/* $XFree86: xc/lib/GL/mesa/src/drv/mga/mgavb.h,v 1.8 2002/10/30 12:51:36 alanh Exp $ */
+/*
+ * Copyright 2000-2001 VA Linux Systems, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef MGAVB_INC
+#define MGAVB_INC
+
+#include "mtypes.h"
+#include "mgacontext.h"
+#include "swrast/swrast.h"
+
+#define _MGA_NEW_RASTERSETUP (_NEW_TEXTURE |			\
+			      _DD_NEW_SEPARATE_SPECULAR |	\
+			      _DD_NEW_TRI_UNFILLED |		\
+			      _DD_NEW_TRI_LIGHT_TWOSIDE |	\
+			      _NEW_FOG)
+
+
+extern void mgaChooseVertexState( GLcontext *ctx );
+extern void mgaCheckTexSizes( GLcontext *ctx );
+extern void mgaBuildVertices( GLcontext *ctx, 
+			      GLuint start, 
+			      GLuint count,
+			      GLuint newinputs );
+
+extern void mgaPrintSetupFlags(char *msg, GLuint flags );
+
+extern void mgaInitVB( GLcontext *ctx );
+extern void mgaFreeVB( GLcontext *ctx );
+
+extern void mga_emit_contiguous_verts( GLcontext *ctx,
+					GLuint start,
+					GLuint count );
+
+extern void mga_translate_vertex(GLcontext *ctx, 
+				 const mgaVertex *src, 
+				 SWvertex *dst);
+
+extern void mga_print_vertex( GLcontext *ctx, const mgaVertex *v );
+
+#endif

src/mesa/drivers/dri/mga/server/mga.h

@@ -0,0 +1,114 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga.h,v 1.85 2002/12/16 16:19:17 dawes Exp $ */
+/*
+ * MGA Millennium (MGA2064W) functions
+ *
+ * Copyright 1996 The XFree86 Project, Inc.
+ *
+ * Authors
+ *		Dirk Hohndel
+ *			hohndel@XFree86.Org
+ *		David Dawes
+ *			dawes@XFree86.Org
+ */
+
+#ifndef MGA_H
+#define MGA_H
+
+
+#include "xf86drm.h"
+
+
+#define PCI_CHIP_MGA2085		0x0518
+#define PCI_CHIP_MGA2064		0x0519
+#define PCI_CHIP_MGA1064		0x051A
+#define PCI_CHIP_MGA2164		0x051B
+#define PCI_CHIP_MGA2164_AGP		0x051F
+#define PCI_CHIP_MGAG200_PCI		0x0520
+#define PCI_CHIP_MGAG200		0x0521
+#define PCI_CHIP_MGAG400		0x0525
+#define PCI_CHIP_MGAG550		0x2527
+#define PCI_CHIP_MGAG100_PCI		0x1000
+#define PCI_CHIP_MGAG100		0x1001
+
+
+#  define MMIO_IN8(base, offset) \
+	*(volatile unsigned char *)(((unsigned char*)(base)) + (offset))
+#  define MMIO_IN16(base, offset) \
+	*(volatile unsigned short *)(void *)(((unsigned char*)(base)) + (offset))
+#  define MMIO_IN32(base, offset) \
+	*(volatile unsigned int *)(void *)(((unsigned char*)(base)) + (offset))
+#  define MMIO_OUT8(base, offset, val) \
+	*(volatile unsigned char *)(((unsigned char*)(base)) + (offset)) = (val)
+#  define MMIO_OUT16(base, offset, val) \
+	*(volatile unsigned short *)(void *)(((unsigned char*)(base)) + (offset)) = (val)
+#  define MMIO_OUT32(base, offset, val) \
+	*(volatile unsigned int *)(void *)(((unsigned char*)(base)) + (offset)) = (val)
+
+#define INREG8(addr) MMIO_IN8(pMga->IOBase, addr)
+#define INREG16(addr) MMIO_IN16(pMga->IOBase, addr)
+#define INREG(addr) MMIO_IN32(pMga->IOBase, addr)
+#define OUTREG8(addr, val) MMIO_OUT8(pMga->IOBase, addr, val)
+#define OUTREG16(addr, val) MMIO_OUT16(pMga->IOBase, addr, val)
+#define OUTREG(addr, val) MMIO_OUT32(pMga->IOBase, addr, val)
+
+#define MGAIOMAPSIZE		0x00004000
+
+
+typedef struct {
+  int               Chipset;          /**< \brief Chipset number */
+
+  int               irq;              /**< \brief IRQ number */
+
+
+  int               frontOffset;      /**< \brief Front color buffer offset */
+  int               frontPitch;       /**< \brief Front color buffer pitch */
+  int               backOffset;       /**< \brief Back color buffer offset */
+  int               backPitch;        /**< \brief Back color buffer pitch */
+  int               depthOffset;      /**< \brief Depth buffer offset */
+  int               depthPitch;       /**< \brief Depth buffer pitch */
+  int               textureOffset;    /**< \brief Texture area offset */
+  int               textureSize;      /**< \brief Texture area size */
+  int               logTextureGranularity;
+
+  /**
+   * \name AGP
+   */
+  /*@{*/
+  drmSize           agpSize;          /**< \brief AGP map size */
+  int               agpMode;          /**< \brief AGP mode */
+  /*@}*/
+
+  drmRegion         agp;
+
+  /* PCI mappings */
+  drmRegion         registers;
+  drmRegion         status;
+
+  /* AGP mappings */
+  drmRegion         warp;
+  drmRegion         primary;
+  drmRegion         buffers;
+  drmRegion         agpTextures;
+
+  drmBufMapPtr      drmBuffers;
+
+  unsigned long     IOAddress;
+  unsigned char    *IOBase;
+  int		    HasSDRAM;
+
+  __u32             reg_ien;
+} MGARec, *MGAPtr;
+
+
+
+#define MGA_FRONT	0x1
+#define MGA_BACK	0x2
+#define MGA_DEPTH	0x4
+
+#define MGA_AGP_1X_MODE		0x01
+#define MGA_AGP_2X_MODE		0x02
+#define MGA_AGP_4X_MODE		0x04
+#define MGA_AGP_MODE_MASK	0x07
+
+
+#endif

src/mesa/drivers/dri/mga/server/mga_bios.h

@@ -0,0 +1,143 @@
+/* $XConsortium: mga_bios.h /main/2 1996/10/28 04:48:23 kaleb $ */
+#ifndef MGA_BIOS_H
+#define MGA_BIOS_H
+
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga_bios.h,v 1.3 1998/07/25 16:55:51 dawes Exp $ */
+
+/*
+ * MGABiosInfo - This struct describes the video BIOS info block.
+ *
+ * DESCRIPTION
+ *   Do not mess with this, unless you know what you are doing.
+ *   The data lengths and types are critical.
+ *
+ * HISTORY
+ *   October 7, 1996 - [aem] Andrew E. Mileski
+ *   This struct was shamelessly stolen from the MGA DDK.
+ *   It has been reformatted, and the data types changed.
+ */
+typedef struct {
+	/* Length of this structure in bytes */
+	__u16 StructLen;
+
+	/*
+	 * Unique number identifying the product type
+	 * 0 : MGA-S1P20 (2MB base with 175MHz Ramdac)
+	 * 1 : MGA-S1P21 (2MB base with 220MHz Ramdac)
+	 * 2 : Reserved
+	 * 3 : Reserved
+	 * 4 : MGA-S1P40 (4MB base with 175MHz Ramdac)
+	 * 5 : MGA-S1P41 (4MB base with 220MHz Ramdac)
+	 */
+	__u16 ProductID;
+
+	/* Serial number of the board */
+	__u8 SerNo[ 10 ];
+
+	/*
+	 * Manufacturing date of the board (at product test)
+	 * Format: yyyy yyym mmmd dddd
+	 */
+	__u16 ManufDate;
+
+	/* Identification of manufacturing site */
+	__u16 ManufId;
+
+	/*
+	 * Number and revision level of the PCB
+	 * Format: nnnn nnnn nnnr rrrr
+	 *         n = PCB number ex:576 (from 0->2047)
+	 *         r = PCB revision      (from 0->31)
+	 */
+	__u16 PCBInfo;
+
+	/* Identification of any PMBs */
+	__u16 PMBInfo;
+
+	/*
+	 * Bit  0-7  : Ramdac speed (0=175MHz, 1=220MHz)
+	 * Bit  8-15 : Ramdac type  (0=TVP3026, 1=TVP3027)
+	 */
+	__u16 RamdacType;
+
+	/* Maximum PCLK of the ramdac */
+	__u16 PclkMax;
+
+	/* Maximum LDCLK supported by the WRAM memory */
+	__u16 LclkMax;
+
+	/* Maximum MCLK of base board */
+	__u16 ClkBase;
+
+	/* Maximum MCLK of 4Mb board */
+	__u16 Clk4MB;
+
+	/* Maximum MCLK of 8Mb board */
+	__u16 Clk8MB;
+
+	/* Maximum MCLK of board with multimedia module */
+	__u16 ClkMod;
+
+	/* Diagnostic test pass frequency */
+	__u16 TestClk;
+
+	/* Default VGA mode1 pixel frequency */
+	__u16 VGAFreq1;
+
+	/* Default VGA mode2 pixel frequency */
+	__u16 VGAFreq2;
+
+	/* Date of last BIOS programming/update */
+	__u16 ProgramDate;
+
+	/* Number of times BIOS has been programmed */
+	__u16 ProgramCnt;
+
+	/* Support for up to 32 hardware/software options */
+	__u32 Options;
+
+	/* Support for up to 32 hardware/software features */
+	__u32 FeatFlag;
+
+	/* Definition of VGA mode MCLK */
+	__u16 VGAClk;
+
+	/* Indicate the revision level of this header struct */
+	__u16 StructRev;
+
+	__u16 Reserved[ 3 ];
+} MGABiosInfo;
+
+/* from the PINS structure, refer pins info from MGA */
+typedef struct tagParamMGA {
+	__u16 	PinID;		/* 0 */
+	__u8	StructLen;	/* 2 */
+	__u8	Rsvd1;		/* 3 */
+	__u16	StructRev;	/* 4 */
+	__u16	ProgramDate;	/* 6 */
+	__u16	ProgramCnt;	/* 8 */
+	__u16	ProductID;	/* 10 */
+	__u8	SerNo[16];	/* 12 */
+	__u8	PLInfo[6];	/* 28 */
+	__u16	PCBInfo;	/* 34 */
+	__u32	FeatFlag;	/* 36 */
+	__u8	RamdacType;	/* 40 */
+	__u8	RamdacSpeed;	/* 41 */
+	__u8	PclkMax;	/* 42 */
+	__u8	ClkGE;		/* 43 */
+	__u8   ClkMem;		/* 44 */
+	__u8	Clk4MB;		/* 45 */
+	__u8	Clk8MB;		/* 46 */
+	__u8	ClkMod;		/* 47 */
+	__u8	TestClk;	/* 48 */
+	__u8	VGAFreq1;	/* 49 */
+	__u8	VGAFreq2;	/* 50 */
+	__u8	MCTLWTST;	/* 51 */
+	__u8	VidCtrl;	/* 52 */
+	__u8	Clk12MB;	/* 53 */
+	__u8	Clk16MB;	/* 54 */
+	__u8	Reserved[8];	/* 55-62 */
+	__u8	PinCheck;	/* 63 */
+}	MGABios2Info;
+
+#endif

src/mesa/drivers/dri/mga/server/mga_common.h

@@ -0,0 +1,152 @@
+/* mga_common.h -- common header definitions for MGA 2D/3D/DRM suite
+ *
+ * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Converted to common header format:
+ *   Jens Owen <jens@tungstengraphics.com>
+ *
+ * $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga_common.h,v 1.2 2002/12/16 16:19:18 dawes Exp $
+ *
+ */
+
+#ifndef _MGA_COMMON_H_
+#define _MGA_COMMON_H_
+
+/*
+ * WARNING: If you change any of these defines, make sure to change
+ * the kernel include file as well (mga_drm.h)
+ */
+
+#define  DRM_MGA_IDLE_RETRY          2048
+#define  DRM_MGA_NR_TEX_HEAPS        2
+
+typedef struct {
+   int installed;
+   unsigned long phys_addr;
+   int size;
+} drmMGAWarpIndex;
+
+/* Driver specific DRM command indices
+ * NOTE: these are not OS specific, but they are driver specific
+ */
+#define DRM_MGA_INIT              0x00
+#define DRM_MGA_FLUSH             0x01
+#define DRM_MGA_RESET             0x02
+#define DRM_MGA_SWAP              0x03
+#define DRM_MGA_CLEAR             0x04
+#define DRM_MGA_VERTEX            0x05
+#define DRM_MGA_INDICES           0x06
+#define DRM_MGA_ILOAD             0x07
+#define DRM_MGA_BLIT              0x08
+#define DRM_MGA_GETPARAM          0x09
+
+typedef struct {
+   enum {
+      MGA_INIT_DMA    = 0x01,
+      MGA_CLEANUP_DMA = 0x02
+   } func;
+
+   unsigned long sarea_priv_offset;
+
+   int chipset;
+   int sgram;
+
+   unsigned int maccess;
+
+   unsigned int fb_cpp;
+   unsigned int front_offset, front_pitch;
+   unsigned int back_offset, back_pitch;
+
+   unsigned int depth_cpp;
+   unsigned int depth_offset, depth_pitch;
+
+   unsigned int texture_offset[DRM_MGA_NR_TEX_HEAPS];
+   unsigned int texture_size[DRM_MGA_NR_TEX_HEAPS];
+
+   unsigned long fb_offset;
+   unsigned long mmio_offset;
+   unsigned long status_offset;
+   unsigned long warp_offset;
+   unsigned long primary_offset;
+   unsigned long buffers_offset;
+} drmMGAInit;
+
+typedef enum {
+   DRM_MGA_LOCK_READY      = 0x01, /* Wait until hardware is ready for DMA */
+   DRM_MGA_LOCK_QUIESCENT  = 0x02, /* Wait until hardware quiescent        */
+   DRM_MGA_LOCK_FLUSH      = 0x04, /* Flush this context's DMA queue first */
+   DRM_MGA_LOCK_FLUSH_ALL  = 0x08, /* Flush all DMA queues first           */
+                                   /* These *HALT* flags aren't supported yet
+                                      -- they will be used to support the
+                                         full-screen DGA-like mode.        */
+   DRM_MGA_HALT_ALL_QUEUES = 0x10, /* Halt all current and future queues   */
+   DRM_MGA_HALT_CUR_QUEUES = 0x20  /* Halt all current queues              */
+} drmMGALockFlags;
+
+typedef struct {
+   int             context;
+   drmMGALockFlags flags;
+} drmMGALock;
+
+typedef struct {
+   int idx;
+   unsigned int dstorg;
+   unsigned int length;
+} drmMGAIload;
+
+typedef struct {
+   unsigned int flags;
+   unsigned int clear_color;
+   unsigned int clear_depth;
+   unsigned int color_mask;
+   unsigned int depth_mask;
+} drmMGAClearRec;
+
+typedef struct {
+   int idx;                        /* buffer to queue */
+   int used;                       /* bytes in use */
+   int discard;                    /* client finished with buffer?  */
+} drmMGAVertex;
+
+typedef struct {
+        unsigned int planemask;
+        unsigned int srcorg;
+        unsigned int dstorg;
+        int src_pitch, dst_pitch;
+        int delta_sx, delta_sy;
+        int delta_dx, delta_dy;
+        int height, ydir;               /* flip image vertically */
+        int source_pitch, dest_pitch;
+} drmMGABlit;
+
+/* 3.1: An ioctl to get parameters that aren't available to the 3d
+ * client any other way.  
+ */
+#define MGA_PARAM_IRQ_NR            1
+
+typedef struct {
+	int param;
+	int *value;
+} drmMGAGetParam;
+
+#endif