Commit Graph

94514 Commits

Author SHA1 Message Date
Topi Pohjolainen
43c3b5b523 i965/miptree: Switch to isl_surf::tiling
v2 (Daniel): Use isl tiling converters instead of introducing local.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
2017-07-20 11:32:21 +03:00
Topi Pohjolainen
171b72542c intel/isl: Add i915 to isl_tiling converter
v2: s/i915_tiling_to_isl_tiling(/isl_tiling_from_i915_tiling/

Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
2017-07-20 11:32:21 +03:00
Topi Pohjolainen
d8521b9960 i965/miptree: Use isl_tiling_to_i915_tiling()
and drop local copy.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
2017-07-20 11:32:21 +03:00
Topi Pohjolainen
a92e6ff315 i965/miptree: Switch to isl_surf::samples
v2 (Jason):
   - Don't trigger miptree re-creation in vain later on with ISL
     based. Core GL uses zero to indicate single sampled while
     ISL uses one - this would cause intel_miptree_match_image()
     to always fail.
   - Now that native miptree is already using sample number of
     one, there is no need for MAX2() when converting to ISL.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
2017-07-20 11:32:21 +03:00
Topi Pohjolainen
76e2f390f9 i965/miptree: Use num_samples of 1 instead of 0 for single-sampled
Patch moves "assert(brw->num_samples <= 16)" from
emit_3dstate_multisample2() to upload_multisample_state(). Latter
is the only caller of the former and passes "brw->num_samples"
as argument. Therefore it is clearer to assert in the caller.

Possible bug fix in genX(emit_3dstate_multisample2) which
doesn't have a case for num_samples == 0 in the switch
statement.

It should be noted that intel_miptree_map()/unmap() now checks
additionally for "mt->surf.samples == 1" in order to support gen6
stencil which is already transitioned to ISL. This will go away in
next patch when native miptrees start to use isl_surf::samples as
well.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
2017-07-20 11:32:21 +03:00
Topi Pohjolainen
0e8b81af7b i965/miptree: Switch to isl_surf::msaa_layout
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
2017-07-20 11:32:21 +03:00
Bas Nieuwenhuizen
21d777a122 radv: Add support for VK_KHR_variable_pointers.
Just a trivial enable.

Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Acked-by: Dave Airlie <airlied@redhat.com>
2017-07-20 09:13:01 +02:00
Bas Nieuwenhuizen
31469c0265 radv: Add VK_KHR_storage_buffer_storage_class support.
Signed-off-by: Bas Nieuwenhuizen <basni@google.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Acked-by: Dave Airlie <airlied@redhat.com>
2017-07-20 09:13:01 +02:00
Brian Paul
98240f6399 mesa: check API profile for GL_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION
If we have a compat profile context, it means that GL_QUADS[_STRIP] are
supported so this query makes sense.  It's also legal for 3.2 core profile
because of a spec bug.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2017-07-19 20:09:09 -06:00
Dave Airlie
9ac1432a57 radv: port to new libdrm API.
This bumps the libdrm requirement for amdgpu to the 2.4.82.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-07-20 01:56:04 +01:00
Dave Airlie
aee382510e radv: introduce some wrapper in cs code to make porting off libdrm_amdgpu easier.
This just introduces a central semaphore info struct, and passes it around,
and introduces some wrappers that will make porting off libdrm_amdgpu easier.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-07-20 01:55:36 +01:00
Tim Rowley
1cb5a6061c configure/swr: add KNL and SKX architecture targets
Not built by default.  Currently only builds with icc.

v2:
 * document knl,skx possibilities for swr_archs
 * merge with changed loader lib selection code

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 15:12:07 -05:00
Tim Rowley
f42186b01d configure/swr: configurable swr architectures
Allow configuration of the SWR architecture depend libraries
we build for with --with-swr-archs.  Maintains current behavior
by defaulting to avx,avx2.

Scons changes made to make it still build and work, but
without the changes for configuring which architectures.

v2:
 * add missing comma for swr_archs default
 * check that at least one architecture is enabled
 * modify loader logic to make it clearer how to add archs

Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 15:12:07 -05:00
Tim Rowley
131b9f644c gallium/util: fix nondeterministic avx512 detection
cpuid.7 requires cx=0 to select the extended feature leaf.

avx512 detection was using the non-indexed cpuid resulting
in random non-detection of avx512.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
2017-07-19 15:12:07 -05:00
Marek Olšák
19c101f704 drirc: whitelist War Thunder (Wine) for glthread
Nominated by František Zatloukal <zatloukal.frantisek@gmail.com>
2017-07-19 16:14:47 -04:00
Andres Gomez
9375c1d896 travis: add missing wayland-protocols
> checking for WAYLAND... no
>
> configure: error: Package requirements (wayland-client >= 1.11 wayland-server >= 1.11 wayland-protocols >= 1.8) were not met:
>
> No package 'wayland-protocols' found
>
> Consider adjusting the PKG_CONFIG_PATH environment variable if you
> installed software in a non-standard prefix.
>
> Alternatively, you may set the environment variables WAYLAND_CFLAGS
> and WAYLAND_LIBS to avoid the need to call pkg-config.
> See the pkg-config man page for more details.

Also, added extra path to PKG_CONFIG_PATH env variable.

Fixes: 02cc359372 ("egl/wayland: Use linux-dmabuf interface for buffers")
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 22:17:41 +03:00
Chad Versace
5d69052113 anv/image: Fix VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT
We incorrectly detected VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT.  We looked
for the bit in VkImageCreateInfo::usage, but it's actually in
VkImageCreateInfo::flags.

Found by assertion failures while enabling VK_ANDROID_native_buffer.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
2017-07-19 11:25:50 -07:00
Andres Gomez
80a0c9745c docs: update master's release notes, news and calendar commit
This reflects closer what we are actually doing.

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 19:10:10 +03:00
Andres Gomez
e6f455646a docs: avoid overwrite of LD_LIBRARY_PATH during basic testing
The LD_LIBRARY_PATH environment variable could be already defined so
we extend it and restore it rather than just overwriting it.

v2:
 - Unset the __old_ld helper variable when we are done with it.
 - Corrected test for and escaping of variables (Eric).

v3: Remove unneeded variable (Emil).

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 19:10:10 +03:00
Andres Gomez
8c1d87b251 docs: add instructions to specify LLVM version for basic testing
The "Perform basic testing" and "Use the release.sh script from xorg
util-modular" sections provide some instructions to do so. We add now
some comments in order to use a recent enough LLVM version to run
dist/distcheck and the automake generated binaries.

v2: Suggested the need to define LLVM_CONFIG also before running the
    release.sh script.

Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 19:10:10 +03:00
Eric Engestrom
50d478036a egl: fix line continuation
Trailing space after the backslash meant the rest of the AM_CFLAGS lines
were no longer included.
This has been silently ignored because of the next line starting with
a `-` dash, instructing make to be silent about that line.

Fixes: 02cc359372 "egl/wayland: Use linux-dmabuf interface for buffers"
Cc: Daniel Stone <daniels@collabora.com>
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2017-07-19 15:51:54 +01:00
Eric Engestrom
21c2aca6b7 gbm: fix typo
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-07-19 15:51:54 +01:00
Eric Engestrom
8616a9bd35 configure.ac: fix whitespace
Whitespace-only change (`diff -w` is empty).

Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-07-19 15:51:54 +01:00
Lucas Stach
c8a0660ab4 etnaviv: advertise supported dmabuf modifiers
Simply advertise all supported modifiers, independent of the format.
Special formats, like compressed, which don't support all those modifiers
are already culled from the dmabuf format list, as we don't support
the render target binding for them.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2017-07-19 16:26:50 +02:00
Lucas Stach
58c3ce071c etnaviv: implement resource creation with modifier
This allows to create buffers with a specific tiling layout, which is primarily
used by GBM to allocate the EGL back buffers with the correct tiling/modifier
for use with the scanout engines.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2017-07-19 16:26:50 +02:00
Lucas Stach
d06cfaf4fc etnaviv: fill in modifier in etna_resource_get_handle
This allows the state trackers to know the tiling layout of the
resource and pass this through the various userspace protocols.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2017-07-19 16:26:50 +02:00
Lucas Stach
eebf6ee6e9 etnaviv: fold etna_screen_bo_get_handle into etna_resource_get_handle
There is no point in keeping this indirection. Makes the code easier to
follow.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com> (v1)
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2017-07-19 16:26:50 +02:00
Lucas Stach
8a44aa5043 etnaviv: implement resource import with modifier
This implements resource import with modifier, deriving the correct
internal layout from the modifier and constructing a render compatible
base resource if needed.

This removes the special cases for DDX and renderonly scanout allocated
buffers, as the linear modifier is enough to trigger correct handling
of those buffers.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>
2017-07-19 16:26:49 +02:00
Lucas Stach
605007d5c7 etnaviv: also update textures from external resources
This reworks the logic in etna_update_sampler_source to select the
newest resource view for updating the texture view. This should make
the logic easier to follow and fixes texture updates from imported
dma-bufs.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-07-19 16:26:49 +02:00
Lucas Stach
836d22a2fb etnaviv: increment correct seqno for external resources
If we import a dma-buf with a sampler/pixel pipe incompatible modifier,
the imported buffer will end up in an external resource view. As
resource_changed signals the change of the imported resource, we need
to update the external view seqno, instead of the base resource seqno.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-07-19 16:26:49 +02:00
Lucas Stach
b158ccf1d9 etnaviv: pad scanout buffer size to RS alignment
This fixes failures to import the scanout buffer with screen resolutions
that don't satisfy the RS alignment restrictions, like 1680x1050.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
2017-07-19 16:26:49 +02:00
Lucas Stach
68ec876a25 etnaviv: add helper to work out RS alignment
The minimum RS alignment calculation is needed in various places.
Extract a helper to avoid open-coding the calcuation at every site.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-07-19 16:26:49 +02:00
Lucas Stach
c481880899 renderonly/etnaviv: stop importing resource from renderonly
The current way of importing the resource from renderonly after allocation
is opaque and is taking away control from the driver, which it needs in
order to implement more advanced scenarios than the simple linear scanout
with matching stride alignments.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>
2017-07-19 16:26:49 +02:00
Lucas Stach
a9fad437f7 configure.ac: bump required etnaviv libdrm version to 2.4.82
The following changes need the modifier definitions for the Vivante tiled
formats, which are shipped with libdrm 2.4.82.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2017-07-19 16:26:49 +02:00
Emil Velikov
b359957469 dri/common: use designated initializers for OptConfElems
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-07-19 13:28:54 +01:00
Tomasz Figa
107b9c70d0 gallium: auxiliary: Fix standalone Android build of u_cpu_detect (v2)
Commit 463b7d0332c5("gallium: Enable ARM NEON CPU detection.")
introduced CPU feature detection based Android cpufeatures library.
Unfortunately it also added an assumption that if PIPE_OS_ANDROID is
defined, the library is also available, which is not true for the
standalone build without using Android build system.

Fix it by defining HAS_ANDROID_CPUFEATURES in Android.mk and replacing
respective #ifdefs to use it instead.

v2:
 - Add a comment explaining why the separate flag is needed (Emil).

Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 13:28:23 +01:00
Emil Velikov
644ac2b780 egl: propagate EGL_BAD_ATTRIBUTE during EGLImage attr parsing
Earlier commit refactored/split the parsing into separate hunks.
While no functional change was intended, it did not attribute that
different error is set when the attrib. value is incorrect.

Fixes:  3ee2be4113 ("egl: split _eglParseImageAttribList into per
extension functions")
Cc: Michel Dänzer <michel@daenzer.net>
Reported-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
2017-07-19 13:06:50 +01:00
Emil Velikov
a0755f2e6a swr: remove unneeded fallback strcasecmp define
The last user of the function was removed with earlier commit.

Fixes: 50842e8a93 ("swr: replace gallium->swr format enum conversion")
Cc: Tim Rowley <timothy.o.rowley@intel.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tim Rowley <timothy.o.rowley@intel.com>
2017-07-19 13:06:50 +01:00
Emil Velikov
8e25e23dae st/dri: list __DRI2_FENCE extension only where needed
The extension should be present (if applicable) in the list returned by
getExtensions(). AFAICT no loader has ever looked for it in
__driDriverExtensions/__driDriverGetExtensions.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-07-19 13:06:50 +01:00
Emil Velikov
7791949dad swrast: add dri2ConfigQueryExtension to the correct extension list
The extension should be in the list as returned by getExtensions().
Seems to have gone unnoticed since close to nobody wants to change the
vblank mode for the software driver.

v2: Rebase

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
2017-07-19 13:06:50 +01:00
Emil Velikov
225e45d45c radeon: remove local vblank_mode option
Analogous to previous commits.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-07-19 13:06:50 +01:00
Emil Velikov
6ba3fd2d6d i915: remove local vblank_mode option
Analogous to previous commit.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-07-19 13:06:50 +01:00
Emil Velikov
b655205ff2 i965: remove local vblank_mode option
The option is only queried from the loader, which has access to the
dri common code in src/mesa/drivers/dri/common/.

One could grant the loader access to brw_config_options but even
then, having the same option in both places is not a good idea.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-07-19 13:06:50 +01:00
Gwan-gyeong Mun
3f6cc931eb egl/dri2: remove unused buffer_count variable
It removes unused buffer_count variable from dri2_egl_surface.
And it polishes the assert of dri2_drm_get_buffers_with_format().

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 13:06:50 +01:00
Gwan-gyeong Mun
faada25f47 egl/drm: Format code in platform_drm.c according to style guide.
This is a tiny housekeeping patch which does the following:
  * Limit lines to 78 or fewer characters.
According to the mesa coding style guidelines.

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 13:06:50 +01:00
Gwan-gyeong Mun
7c89585551 egl/drm: add going out of the loop when the designated buffer is found
Because the color_buffers have a each unique bo, if the designated buffer is
found, release_buffer() can go out the loop which seaches the buffer.

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 13:06:50 +01:00
Gwan-gyeong Mun
89505f7ead gbm: fix typo in doxygen comment
This fixes the misspelling of gbm_bo_import api param.

Signed-off-by: Mun Gwan-gyeong <elongbug@gmail.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
2017-07-19 13:06:50 +01:00
Daniel Stone
46dace14ff egl: Add MKDIR_GEN definition
Adding linux-dmabuf Wayland protocol files as generated did the right
thing, by prepending $(MKDIR_GEN) so autotools didn't try to write into
a build directory which didn't yet exist.

Unfortunately MKDIR_GEN needs to be defined in every Makefile it's used
in (which we do now), or alternately defined and substituted in
configure.ac (which we don't do), and src/egl/ didn't actually have it
from either method. As unset variables expand to nothing, it was
silently being skipped.

Copy & paste the defintion to make sure drivers/dri2/ exists before we
try to generate files into it.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reported-by: Nick Sarnie <commendsarnex@gmail.com>
Reported-by: Mike Lothian <mike@fireburn.co.uk>
Fixes: 02cc359372 ("egl/wayland: Use linux-dmabuf interface for buffers")
2017-07-19 13:05:02 +01:00
Kenneth Graunke
2412c4c81e util: Make CLAMP turn NaN into MIN.
The previous implementation of CLAMP() allowed NaN to pass through
unscathed, by failing both comparisons.  NaN isn't exactly a value
between MIN and MAX, which can break the assumptions of many callers.

This patch changes CLAMP to convert NaN to MIN, arbitrarily.  Callers
that need NaN to be handled in a specific manner should probably open
code something, or use a macro specifically designed to do that.

Section 2.3.4.1 of the OpenGL 4.5 spec says:

   "Any representable floating-point value is legal as input to a GL
    command that requires floating-point data. The result of providing a
    value that is not a floating-point number to such a command is
    unspecified, but must not lead to GL interruption or termination.
    In IEEE arithmetic, for example, providing a negative zero or a
    denormalized number to a GL command yields predictable results,
    while providing a NaN or an infinity yields unspecified results."

While CLAMP may apply to more than just GL inputs, it seems reasonable
to follow those rules, and allow MIN as an "unspecified result".

This prevents assertion failures in i965 when running the games
"XCOM: Enemy Unknown" and "XCOM: Enemy Within", which call

   glTexEnv(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT,
            -nan(0x7ffff3));

presumably unintentionally.  i965 clamps the LOD bias to be in range,
and asserts that it's in the proper range when converting to fixed
point.  NaN is not, so it crashed.  We'd like to at least avoid that.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2017-07-18 23:48:46 -07:00
Kenneth Graunke
0320bb2c6c nir: Use nir_src_copy instead of direct assignments.
If the source is an indirect register, there is ralloc'd data.  Copying
with a direct assignment will copy the pointer, but the data will still
belong to the old instruction's memory context.  Since we're lowering
and throwing away instructions, that could free the data by mistake.

Instead, use nir_src_copy, which properly handles this.

This is admittedly not a common case, so I think the bug is real,
but unlikely to be hit.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Matt Turner <mattst88@gmail.com>
2017-07-18 23:44:50 -07:00