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

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• Author : Le Quyen
  Date : 2019-10-14 14:49:49
  Hash : a48f95ab
  Message : Move Vulkan GlslangWrapper code to a shared location. Metal backend will reuse Vulkan's GlslangWrapper code. The Metal backend will use this code to translate glsl to spirv then cross compile to Metal Shading Language using spirv-cross. So the source code of GlslangWrapper should be moved outside vulkan folder. Bug: angleproject:2634 Change-Id: I208062daf0d77756c9d32cfdab925b7dfdf83e05 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1858042 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

• 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/glslang_wrapper_utils.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;
  }
  
  GlslangSourceOptions CreateSourceOptions()
  {
      GlslangSourceOptions options;
      options.uniformsAndXfbDescriptorSetIndex = kUniformsAndXfbDescriptorSetIndex;
      options.textureDescriptorSetIndex        = kTextureDescriptorSetIndex;
      options.shaderResourceDescriptorSetIndex = kShaderResourceDescriptorSetIndex;
      options.driverUniformsDescriptorSetIndex = kDriverUniformsDescriptorSetIndex;
      options.xfbBindingIndexStart             = kXfbBindingIndexStart;
      return options;
  }
  }  // namespace
  
  // static
  void GlslangWrapperVk::GetShaderSource(bool useOldRewriteStructSamplers,
                                         const gl::ProgramState &programState,
                                         const gl::ProgramLinkedResources &resources,
                                         gl::ShaderMap<std::string> *shaderSourcesOut)
  {
      GlslangGetShaderSource(CreateSourceOptions(), useOldRewriteStructSamplers, programState,
                             resources, shaderSourcesOut);
  }
  
  // static
  angle::Result GlslangWrapperVk::GetShaderCode(vk::Context *context,
                                                const gl::Caps &glCaps,
                                                bool enableLineRasterEmulation,
                                                const gl::ShaderMap<std::string> &shaderSources,
                                                gl::ShaderMap<std::vector<uint32_t>> *shaderCodeOut)
  {
      return GlslangGetShaderSpirvCode(
          [context](GlslangError error) { return ErrorHandler(context, error); }, glCaps,
          enableLineRasterEmulation, shaderSources, shaderCodeOut);
  }
  }  // namespace rx