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      1 //
      2 // Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
      3 // Use of this source code is governed by a BSD-style license that can be
      4 // found in the LICENSE file.
      5 //
      6 // UniformHLSL.h:
      7 //   Methods for GLSL to HLSL translation for uniforms and interface blocks.
      8 //
      9 
     10 #ifndef TRANSLATOR_UNIFORMHLSL_H_
     11 #define TRANSLATOR_UNIFORMHLSL_H_
     12 
     13 #include "compiler/translator/Types.h"
     14 
     15 namespace sh
     16 {
     17 class StructureHLSL;
     18 
     19 class UniformHLSL
     20 {
     21   public:
     22     UniformHLSL(StructureHLSL *structureHLSL, TranslatorHLSL *translator);
     23 
     24     void reserveUniformRegisters(unsigned int registerCount);
     25     void reserveInterfaceBlockRegisters(unsigned int registerCount);
     26     TString uniformsHeader(ShShaderOutput outputType, const ReferencedSymbols &referencedUniforms);
     27     TString interfaceBlocksHeader(const ReferencedSymbols &referencedInterfaceBlocks);
     28 
     29     // Used for direct index references
     30     static TString interfaceBlockInstanceString(const TInterfaceBlock& interfaceBlock, unsigned int arrayIndex);
     31 
     32     const std::map<std::string, unsigned int> &getInterfaceBlockRegisterMap() const
     33     {
     34         return mInterfaceBlockRegisterMap;
     35     }
     36     const std::map<std::string, unsigned int> &getUniformRegisterMap() const
     37     {
     38         return mUniformRegisterMap;
     39     }
     40 
     41   private:
     42     TString interfaceBlockString(const TInterfaceBlock &interfaceBlock, unsigned int registerIndex, unsigned int arrayIndex);
     43     TString interfaceBlockMembersString(const TInterfaceBlock &interfaceBlock, TLayoutBlockStorage blockStorage);
     44     TString interfaceBlockStructString(const TInterfaceBlock &interfaceBlock);
     45     const Uniform *findUniformByName(const TString &name) const;
     46 
     47     // Returns the uniform's register index
     48     unsigned int declareUniformAndAssignRegister(const TType &type, const TString &name);
     49 
     50     unsigned int mUniformRegister;
     51     unsigned int mInterfaceBlockRegister;
     52     unsigned int mSamplerRegister;
     53     StructureHLSL *mStructureHLSL;
     54     ShShaderOutput mOutputType;
     55 
     56     const std::vector<Uniform> &mUniforms;
     57     std::map<std::string, unsigned int> mInterfaceBlockRegisterMap;
     58     std::map<std::string, unsigned int> mUniformRegisterMap;
     59 };
     60 
     61 }
     62 
     63 #endif // TRANSLATOR_UNIFORMHLSL_H_
     64