kc3-lang/angle/src/compiler/translator/OutputVulkanGLSL.h

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• Author : Shahbaz Youssefi
  Date : 2021-08-04 10:07:47
  Hash : 061188a7
  Message : Translator: General clean up General clean up done as part of other changes, split to simplify review. Bug: angleproject:4889 Bug: angleproject:6132 Change-Id: Iade9954d187a759be9edd0e3754be007f4133c56 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3071598 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Tim Van Patten <timvp@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>

• src/compiler/translator/OutputVulkanGLSL.h

• //
  // 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.
  //
  // OutputVulkanGLSL:
  //   Code that outputs shaders that fit GL_KHR_vulkan_glsl, to be fed to glslang to generate
  //   SPIR-V.
  //   See: https://www.khronos.org/registry/vulkan/specs/misc/GL_KHR_vulkan_glsl.txt
  //
  
  #ifndef COMPILER_TRANSLATOR_OUTPUTVULKANGLSL_H_
  #define COMPILER_TRANSLATOR_OUTPUTVULKANGLSL_H_
  
  #include "compiler/translator/OutputGLSL.h"
  
  namespace sh
  {
  
  class TOutputVulkanGLSL : public TOutputGLSL
  {
    public:
      TOutputVulkanGLSL(TCompiler *compiler,
                        TInfoSinkBase &objSink,
                        bool enablePrecision,
                        ShCompileOptions compileOptions);
  
      uint32_t nextUnusedBinding() { return mNextUnusedBinding++; }
      uint32_t nextUnusedInputLocation(uint32_t consumedCount)
      {
          uint32_t nextUnused = mNextUnusedInputLocation;
          mNextUnusedInputLocation += consumedCount;
          return nextUnused;
      }
      uint32_t nextUnusedOutputLocation(uint32_t consumedCount)
      {
          uint32_t nextUnused = mNextUnusedOutputLocation;
          mNextUnusedOutputLocation += consumedCount;
          return nextUnused;
      }
  
    protected:
      void writeLayoutQualifier(TIntermSymbol *variable) override;
      void writeVariableType(const TType &type,
                             const TSymbol *symbol,
                             bool isFunctionArgument) override;
      bool writeVariablePrecision(TPrecision) override;
  
      // Every resource that requires set & binding layout qualifiers is assigned set 0 and an
      // arbitrary binding when outputting GLSL.  Every input/output that requires a location
      // layout qualifiers is assigned an arbitrary location as well.
      //
      // Glslang wrapper modifies set, binding and location decorations in SPIR-V directly.
      uint32_t mNextUnusedBinding;
      uint32_t mNextUnusedInputLocation;
      uint32_t mNextUnusedOutputLocation;
  
    private:
      bool mEnablePrecision;
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_OUTPUTVULKANGLSL_H_