kc3-lang/angle/include/platform/FrontendFeatures.h

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• Hash : 572afd90
  Author :
  Date : 2021-01-29T22:45:29
  

  Disable SH_SCALARIZE_VEC_AND_MAT_CONSTRUCTOR_ARGS workaround.
  
  It causes incorrect compilation of some shaders. The original graphics
  driver bugs that motivated enabling it have been fixed, at least on
  one of the platforms (macOS).
  
  Tested with new WebGL conformance test in
  https://github.com/KhronosGroup/WebGL/pull/3214 .
  
  Bug: chromium:1165751
  Change-Id: Iee9747769ca918aab143592d6cf158ce02a75ee0
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2661024
  Commit-Queue: Kenneth Russell <kbr@chromium.org>
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• include/platform/FrontendFeatures.h

• //
  // Copyright 2016 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // FrontendFeatures.h: Features/workarounds for driver bugs and other behaviors seen
  // on all platforms.
  
  #ifndef ANGLE_PLATFORM_FRONTENDFEATURES_H_
  #define ANGLE_PLATFORM_FRONTENDFEATURES_H_
  
  #include "platform/Feature.h"
  
  namespace angle
  {
  
  struct FrontendFeatures : angle::FeatureSetBase
  {
      FrontendFeatures();
      ~FrontendFeatures();
  
      // Force the context to be lost (via KHR_robustness) if a GL_OUT_OF_MEMORY error occurs. The
      // driver may be in an inconsistent state if this happens, and some users of ANGLE rely on this
      // notification to prevent further execution.
      angle::Feature loseContextOnOutOfMemory = {
          "lose_context_on_out_of_memory", angle::FeatureCategory::FrontendWorkarounds,
          "Some users rely on a lost context notification if a GL_OUT_OF_MEMORY "
          "error occurs",
          &members};
  
      // Program binaries don't contain transform feedback varyings on Qualcomm GPUs.
      // Work around this by disabling the program cache for programs with transform feedback.
      angle::Feature disableProgramCachingForTransformFeedback = {
          "disable_program_caching_for_transform_feedback",
          angle::FeatureCategory::FrontendWorkarounds,
          "On some GPUs, program binaries don't contain transform feedback varyings", &members};
  
      // On Windows Intel OpenGL drivers TexImage sometimes seems to interact with the Framebuffer.
      // Flaky crashes can occur unless we sync the Framebuffer bindings. The workaround is to add
      // Framebuffer binding dirty bits to TexImage updates. See http://anglebug.com/2906
      angle::Feature syncFramebufferBindingsOnTexImage = {
          "sync_framebuffer_bindings_on_tex_image", angle::FeatureCategory::FrontendWorkarounds,
          "On some drivers TexImage sometimes seems to interact "
          "with the Framebuffer",
          &members};
  
      angle::Feature scalarizeVecAndMatConstructorArgs = {
          "scalarize_vec_and_mat_constructor_args", angle::FeatureCategory::FrontendWorkarounds,
          "Always rewrite vec/mat constructors to be consistent", &members,
          "http://crbug.com/1165751"};
  
      // Disable support for GL_OES_get_program_binary
      angle::Feature disableProgramBinary = {
          "disable_program_binary", angle::FeatureCategory::FrontendFeatures,
          "Disable support for GL_OES_get_program_binary", &members, "http://anglebug.com/5007"};
  
      // Allow disabling of GL_EXT_texture_filter_anisotropic through a runtime feature for
      // performance comparisons.
      angle::Feature disableAnisotropicFiltering = {
          "disable_anisotropic_filtering", angle::FeatureCategory::FrontendWorkarounds,
          "Disable support for anisotropic filtering", &members};
  
      // We can use this feature to override compressed format support for portability.
      angle::Feature allowCompressedFormats = {"allow_compressed_formats",
                                               angle::FeatureCategory::FrontendWorkarounds,
                                               "Allow compressed formats", &members};
  };
  
  inline FrontendFeatures::FrontendFeatures()  = default;
  inline FrontendFeatures::~FrontendFeatures() = default;
  
  }  // namespace angle
  
  #endif  // ANGLE_PLATFORM_FRONTENDFEATURES_H_
  

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