FrontendFeatures.h

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1//
2// Copyright 2016 The ANGLE Project Authors. All rights reserved.
3// Use of this source code is governed by a BSD-style license that can be
4// found in the LICENSE file.
5//
6
7// FrontendFeatures.h: Features/workarounds for driver bugs and other behaviors seen
8// on all platforms.
9
10#ifndef ANGLE_PLATFORM_FRONTENDFEATURES_H_
11#define ANGLE_PLATFORM_FRONTENDFEATURES_H_
12
13#include "platform/Feature.h"
14
15namespace angle
16{
17
18struct FrontendFeatures : angle::FeatureSetBase
19{
20 FrontendFeatures();
21 ~FrontendFeatures();
22
23 // Force the context to be lost (via KHR_robustness) if a GL_OUT_OF_MEMORY error occurs. The
24 // driver may be in an inconsistent state if this happens, and some users of ANGLE rely on this
25 // notification to prevent further execution.
26 angle::Feature loseContextOnOutOfMemory = {
27 "lose_context_on_out_of_memory", angle::FeatureCategory::FrontendWorkarounds,
28 "Some users rely on a lost context notification if a GL_OUT_OF_MEMORY "
29 "error occurs",
30 &members};
31
32 // Program binaries don't contain transform feedback varyings on Qualcomm GPUs.
33 // Work around this by disabling the program cache for programs with transform feedback.
34 angle::Feature disableProgramCachingForTransformFeedback = {
35 "disable_program_caching_for_transform_feedback",
36 angle::FeatureCategory::FrontendWorkarounds,
37 "On some GPUs, program binaries don't contain transform feedback varyings", &members};
38
39 // On Windows Intel OpenGL drivers TexImage sometimes seems to interact with the Framebuffer.
40 // Flaky crashes can occur unless we sync the Framebuffer bindings. The workaround is to add
41 // Framebuffer binding dirty bits to TexImage updates. See http://anglebug.com/2906
42 angle::Feature syncFramebufferBindingsOnTexImage = {
43 "sync_framebuffer_bindings_on_tex_image", angle::FeatureCategory::FrontendWorkarounds,
44 "On some drivers TexImage sometimes seems to interact "
45 "with the Framebuffer",
46 &members};
47
48 angle::Feature scalarizeVecAndMatConstructorArgs = {
49 "scalarize_vec_and_mat_constructor_args", angle::FeatureCategory::FrontendWorkarounds,
50 "Always rewrite vec/mat constructors to be consistent", &members,
51 "http://crbug.com/398694"};
52};
53
54inline FrontendFeatures::FrontendFeatures() = default;
55inline FrontendFeatures::~FrontendFeatures() = default;
56
57} // namespace angle
58
59#endif // ANGLE_PLATFORM_FRONTENDFEATURES_H_
60
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