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

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• Author : Geoff Lang
  Date : 2019-06-19 16:20:09
  Hash : bce4b9f8
  Message : Always scalarize mat and vec constructor arguments. This workaround is always enabled in Chrome, do the same in ANGLE. BUG=882580 Change-Id: I2c01f34a589b07bd0035d7408be884f7a51b1706 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1666699 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Geoff Lang <geofflang@chromium.org>

• include/platform/FrontendFeatures.h

• //
  // Copyright (c) 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 Qualcomm 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 Windows Intel OpenGL 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/398694"};
  };
  
  inline FrontendFeatures::FrontendFeatures()  = default;
  inline FrontendFeatures::~FrontendFeatures() = default;
  
  }  // namespace angle
  
  #endif  // ANGLE_PLATFORM_FRONTENDFEATURES_H_