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f3d5dac3
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2021-08-23T17:25:15
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Vulkan: SPIR-V Gen: Drop dependency to glslang
The SPIR-V gen path is now made default. Compilation through glslang is
still supported for debugging, and is enabled on the GLSL* end2end tests
for smoke testing. On release builds, glslang is not supported.
To test with glslang, add the following gn arg (only necessary if dcheck
is disabled):
angle_enable_spirv_gen_through_glslang = true
Then enable the generateSPIRVThroughGlslang feature. This can be done
by setting an environment variable:
ANGLE_FEATURE_OVERRIDES_ENABLED=generateSPIRVThroughGlslang ./angle_deqp_gles2_tests
Binary size saving:
- 1.3MB on Linux (SPIR-V gen itself: 240KB)
- 730KB on Android (SPIR-V gen itself: 140KB)
Perf tests:
- LinkProgramBenchmark.Run/vulkan_compile_single_thread
* Through glslang:
truncated mean: 1287033.36
* Direct SPIR-V Gen:
truncated mean: 244495.91 (~80% reduction)
- LinkProgramBenchmark.Run/vulkan_compile_multi_thread
* Through glslang:
truncated mean: 4565894.83
* Direct SPIR-V Gen:
truncated mean: 1158164.10 (~75% reduction)
Bug: angleproject:4889
Bug: angleproject:6210
Change-Id: I486342702977c8114e90073b97183aba115a8b2d
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3115140
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
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9c271645
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2021-08-27T13:07:06
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Vulkan: SPIR-V Gen: Fix gl_PerVertex without clip/cull support
When the clip/cull distance extension is not supported, the
gl_ClipDistances and gl_CullDistances arrays were given a size of 0,
which made them translate as OpRuntimeArray.
This change makes sure that these arrays always have a non-zero size.
Bug: angleproject:4889
Change-Id: I8d2ffe3a7c1df9316e91eebc2aa53bdc2c87ccc1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3123354
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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2f737c25
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2021-02-25T16:55:14
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Translator: Rename GLSL to SPIR-V in Vulkan and Metal output
Preparation for actual SPIR-V output instead of GLSL.
Bug: angleproject:4889
Change-Id: Ic279b23d3a817bd5dca66a844905378207afdbac
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2721194
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
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dadd1986
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2020-04-21T01:50:00
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Implement GL_APPLE_clip_distance
- Built-in variable gl_ClipDistance has been added to compiler.
- Desktop GL: gl_ClipDistance is supported since GL 3.0. Enable/Disable
each gl_ClipDistances[i] works out of the box via glEnable().
- Vulkan/Metal: Use uniform variable to control writing to each
gl_ClipDistance. One bit flag controls one element in the gl_ClipDistance
array. The writing to the disabled element in vertex shader will be
ignored, and turned into zero assignment instead.
- Direct3D/Mobile GL: Not implemented yet.
- Added ClipDistanceTest to gl_tests and compiler unittests.
- GL_APPLE_clip_distance is a subset of GL_EXT_clip_cull_distance, so
GL_EXT_clip_cull_distance could be implemented in future if needed.
Bug: angleproject:4452
Change-Id: I571ac8b56826989808a680226a04bec4cf59988e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2084324
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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