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

• Show log

  Commit

• Hash : daeac238
  Author :
  Date : 2021-05-08T22:09:38
  

  Translator: Ensure structs and blocks are uniquely defined
  
  A new AST validation is added to ensure that the same TStructure or
  TInterfaceBlock is not redundantly defined.  This helps with SPIR-V
  generation by allowing the id to be used as key in a hash map that looks
  up the corresponding SPIR-V type id.
  
  A bug is fixed where the Vulkan driver uniform declaration created two
  identical declarations for ANGLEDepthRangeParams.
  
  A number of other bugs are also fixed in this change, where if a
  variable declaration is eliminated (for example due to constant folding,
  or inactive interface variable removal) and it contained a struct
  specifier, the struct declaration was also removed.  OutputGLSLBase had
  a hack where structs were declared on first encounter, which was
  incorrect as the scope of the declaration could change.  Those bugs are
  fixed and this hack is removed.
  
  Bug: angleproject:2733
  Bug: angleproject:4889
  Bug: angleproject:5936
  Change-Id: I8e13748c0bf552ae8b052249282769a1f0775603
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2881942
  Reviewed-by: Charlie Lao <cclao@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

Download

• 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(TInfoSinkBase &objSink,
                        ShArrayIndexClampingStrategy clampingStrategy,
                        ShHashFunction64 hashFunction,
                        NameMap &nameMap,
                        TSymbolTable *symbolTable,
                        sh::GLenum shaderType,
                        int shaderVersion,
                        ShShaderOutput output,
                        bool forceHighp,
                        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(TIntermTyped *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 mForceHighp;
      bool mEnablePrecision;
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_OUTPUTVULKANGLSL_H_
  

Download