kc3-lang/angle/util/EGLPlatformParameters.h

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• Author : Shahbaz Youssefi
  Date : 2021-08-23 17:25:15
  Hash : f3d5dac3
  Message : 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>

• util/EGLPlatformParameters.h

• //
  // Copyright 2018 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.
  //
  // EGLPlatformParameters: Basic description of an EGL device.
  
  #ifndef UTIL_EGLPLATFORMPARAMETERS_H_
  #define UTIL_EGLPLATFORMPARAMETERS_H_
  
  #include "util/util_gl.h"
  
  #include <tuple>
  
  namespace angle
  {
  struct PlatformMethods;
  
  // The GLES driver type determines what shared object we use to load the GLES entry points.
  // AngleEGL loads from ANGLE's version of libEGL, libGLESv2, and libGLESv1_CM.
  // SystemEGL uses the system copies of libEGL, libGLESv2, and libGLESv1_CM.
  // SystemWGL loads Windows GL with the GLES compatibility extensions. See util/WGLWindow.h.
  enum class GLESDriverType
  {
      AngleEGL,
      SystemEGL,
      SystemWGL,
  };
  }  // namespace angle
  
  struct EGLPlatformParameters
  {
      EGLPlatformParameters() = default;
  
      explicit EGLPlatformParameters(EGLint renderer) : renderer(renderer) {}
  
      EGLPlatformParameters(EGLint renderer,
                            EGLint majorVersion,
                            EGLint minorVersion,
                            EGLint deviceType)
          : renderer(renderer),
            majorVersion(majorVersion),
            minorVersion(minorVersion),
            deviceType(deviceType)
      {}
  
      EGLPlatformParameters(EGLint renderer,
                            EGLint majorVersion,
                            EGLint minorVersion,
                            EGLint deviceType,
                            EGLint presentPath)
          : renderer(renderer),
            majorVersion(majorVersion),
            minorVersion(minorVersion),
            deviceType(deviceType),
            presentPath(presentPath)
      {}
  
      auto tie() const
      {
          return std::tie(renderer, majorVersion, minorVersion, deviceType, presentPath,
                          debugLayersEnabled, contextVirtualization, transformFeedbackFeature,
                          allocateNonZeroMemoryFeature, emulateCopyTexImage2DFromRenderbuffers,
                          shaderStencilOutputFeature, genMultipleMipsPerPassFeature, platformMethods,
                          robustness, emulatedPrerotation, asyncCommandQueueFeatureVulkan,
                          hasExplicitMemBarrierFeatureMtl, hasCheapRenderPassFeatureMtl,
                          forceBufferGPUStorageFeatureMtl, supportsVulkanViewportFlip, emulatedVAOs,
                          generateSPIRVThroughGlslang, captureLimits, forceRobustResourceInit,
                          directMetalGeneration, forceInitShaderVariables, forceVulkanFallbackFormat);
      }
  
      EGLint renderer                               = EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE;
      EGLint majorVersion                           = EGL_DONT_CARE;
      EGLint minorVersion                           = EGL_DONT_CARE;
      EGLint deviceType                             = EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE;
      EGLint presentPath                            = EGL_DONT_CARE;
      EGLint debugLayersEnabled                     = EGL_DONT_CARE;
      EGLint contextVirtualization                  = EGL_DONT_CARE;
      EGLint robustness                             = EGL_DONT_CARE;
      EGLint transformFeedbackFeature               = EGL_DONT_CARE;
      EGLint allocateNonZeroMemoryFeature           = EGL_DONT_CARE;
      EGLint emulateCopyTexImage2DFromRenderbuffers = EGL_DONT_CARE;
      EGLint shaderStencilOutputFeature             = EGL_DONT_CARE;
      EGLint genMultipleMipsPerPassFeature          = EGL_DONT_CARE;
      uint32_t emulatedPrerotation                  = 0;  // Can be 0, 90, 180 or 270
      EGLint asyncCommandQueueFeatureVulkan         = EGL_DONT_CARE;
      EGLint hasExplicitMemBarrierFeatureMtl        = EGL_DONT_CARE;
      EGLint hasCheapRenderPassFeatureMtl           = EGL_DONT_CARE;
      EGLint forceBufferGPUStorageFeatureMtl        = EGL_DONT_CARE;
      EGLint supportsVulkanViewportFlip             = EGL_DONT_CARE;
      EGLint emulatedVAOs                           = EGL_DONT_CARE;
      EGLint generateSPIRVThroughGlslang            = EGL_DONT_CARE;
      EGLint captureLimits                          = EGL_DONT_CARE;
      EGLint forceRobustResourceInit                = EGL_DONT_CARE;
      EGLint directMetalGeneration                  = EGL_DONT_CARE;
      EGLint forceInitShaderVariables               = EGL_DONT_CARE;
      EGLint forceVulkanFallbackFormat              = EGL_DONT_CARE;
  
      angle::PlatformMethods *platformMethods = nullptr;
  };
  
  inline bool operator<(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
  {
      return a.tie() < b.tie();
  }
  
  inline bool operator==(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
  {
      return a.tie() == b.tie();
  }
  
  inline bool operator!=(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
  {
      return a.tie() != b.tie();
  }
  
  #endif  // UTIL_EGLPLATFORMPARAMETERS_H_