kc3-lang/angle/src/libANGLE/renderer/vulkan/GlslangWrapperVk.cpp

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• Hash : 8b80e852
  Author :
  Date : 2020-06-25T09:43:01
  

  Remove debug info from SPIR-V
  
  When dcheck_always_on=false, the SPIR-V transformer will strip all debug
  information to reduce the SPIR-V binary size.
  
  Running T-Rex shows about 27% reduction in the SPIR-V binary size.
  
  Bug: angleproject:4680
  Test: CQ
  Change-Id: Id9d0189cdc9c12fa5a1741cf62ef549a533cdf93
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2267358
  Commit-Queue: Tim Van Patten <timvp@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/vulkan/GlslangWrapperVk.cpp

• //
  // 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.
  //
  // GlslangWrapperVk: Wrapper for Vulkan's glslang compiler.
  //
  
  #include "libANGLE/renderer/vulkan/GlslangWrapperVk.h"
  
  #include "libANGLE/renderer/vulkan/ContextVk.h"
  #include "libANGLE/renderer/vulkan/vk_cache_utils.h"
  
  namespace rx
  {
  namespace
  {
  angle::Result ErrorHandler(vk::Context *context, GlslangError)
  {
      ANGLE_VK_CHECK(context, false, VK_ERROR_INVALID_SHADER_NV);
      return angle::Result::Stop;
  }
  
  }  // namespace
  
  // static
  GlslangSourceOptions GlslangWrapperVk::CreateSourceOptions(const angle::FeaturesVk &features)
  {
      GlslangSourceOptions options;
  
      options.useOldRewriteStructSamplers = features.forceOldRewriteStructSamplers.enabled;
      options.supportsTransformFeedbackExtension =
          features.supportsTransformFeedbackExtension.enabled;
      options.emulateTransformFeedback = features.emulateTransformFeedback.enabled;
      options.emulateBresenhamLines    = features.basicGLLineRasterization.enabled;
  
      return options;
  }
  
  // static
  void GlslangWrapperVk::ResetGlslangProgramInterfaceInfo(
      GlslangProgramInterfaceInfo *glslangProgramInterfaceInfo)
  {
      glslangProgramInterfaceInfo->uniformsAndXfbDescriptorSetIndex =
          kUniformsAndXfbDescriptorSetIndex;
      glslangProgramInterfaceInfo->currentUniformBindingIndex = 0;
      glslangProgramInterfaceInfo->textureDescriptorSetIndex  = kTextureDescriptorSetIndex;
      glslangProgramInterfaceInfo->currentTextureBindingIndex = 0;
      glslangProgramInterfaceInfo->shaderResourceDescriptorSetIndex =
          kShaderResourceDescriptorSetIndex;
      glslangProgramInterfaceInfo->currentShaderResourceBindingIndex = 0;
      glslangProgramInterfaceInfo->driverUniformsDescriptorSetIndex =
          kDriverUniformsDescriptorSetIndex;
  
      glslangProgramInterfaceInfo->locationsUsedForXfbExtension = 0;
  }
  
  // static
  void GlslangWrapperVk::GetShaderSource(const angle::FeaturesVk &features,
                                         const gl::ProgramState &programState,
                                         const gl::ProgramLinkedResources &resources,
                                         GlslangProgramInterfaceInfo *programInterfaceInfo,
                                         gl::ShaderMap<std::string> *shaderSourcesOut,
                                         ShaderMapInterfaceVariableInfoMap *variableInfoMapOut)
  {
      GlslangSourceOptions options = CreateSourceOptions(features);
      GlslangGetShaderSource(options, programState, resources, programInterfaceInfo, shaderSourcesOut,
                             variableInfoMapOut);
  }
  
  // static
  angle::Result GlslangWrapperVk::GetShaderCode(
      vk::Context *context,
      const gl::ShaderBitSet &linkedShaderStages,
      const gl::Caps &glCaps,
      const gl::ShaderMap<std::string> &shaderSources,
      const ShaderMapInterfaceVariableInfoMap &variableInfoMap,
      gl::ShaderMap<std::vector<uint32_t>> *shaderCodeOut)
  {
      return GlslangGetShaderSpirvCode(
          [context](GlslangError error) { return ErrorHandler(context, error); }, linkedShaderStages,
          glCaps, shaderSources, variableInfoMap, shaderCodeOut);
  }
  
  // static
  angle::Result GlslangWrapperVk::TransformSpirV(
      vk::Context *context,
      const gl::ShaderType shaderType,
      bool removeEarlyFragmentTestsOptimization,
      const ShaderInterfaceVariableInfoMap &variableInfoMap,
      const SpirvBlob &initialSpirvBlob,
      SpirvBlob *shaderCodeOut)
  {
      const bool removeDebugInfo = !context->getRenderer()->getEnableValidationLayers();
  
      return GlslangTransformSpirvCode(
          [context](GlslangError error) { return ErrorHandler(context, error); }, shaderType,
          removeEarlyFragmentTestsOptimization, removeDebugInfo, variableInfoMap, initialSpirvBlob,
          shaderCodeOut);
  }
  }  // namespace rx
  

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