kc3-lang/angle/src/libANGLE/renderer/d3d/DynamicHLSL.h

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• Hash : 3da79b7b
  Author :
  Date : 2015-04-27T11:09:17
  

  Reject shaders using attribute aliasing.
  
  The current code rejects any shaders that use more than the caps
  allow, but a bug would crash us before the check. We don't support
  aliasing in shaders that use a lot of uniforms because this
  causes problems with the D3D back-end, currently. This changes the
  crash in the dEQP aliasing tests to a link error.
  
  See dEQP-GLES2.functional.attribute_location.bind_aliasing.*
  
  BUG=angleproject:901
  
  Change-Id: I6906d3345abe9f89cfa0aa6cec4be26b5b2851d0
  Reviewed-on: https://chromium-review.googlesource.com/266928
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Brandon Jones <bajones@chromium.org>
  

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• src/libANGLE/renderer/d3d/DynamicHLSL.h

• //
  // Copyright (c) 2014 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.
  //
  // DynamicHLSL.h: Interface for link and run-time HLSL generation
  //
  
  #ifndef LIBANGLE_RENDERER_D3D_DYNAMICHLSL_H_
  #define LIBANGLE_RENDERER_D3D_DYNAMICHLSL_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/Constants.h"
  
  #include "angle_gl.h"
  
  #include <vector>
  #include <map>
  
  namespace sh
  {
  struct Attribute;
  struct ShaderVariable;
  }
  
  namespace gl
  {
  class InfoLog;
  struct VariableLocation;
  struct LinkedVarying;
  struct VertexAttribute;
  struct VertexFormat;
  struct PackedVarying;
  struct Data;
  }
  
  namespace rx
  {
  class RendererD3D;
  class ShaderD3D;
  
  typedef const gl::PackedVarying *VaryingPacking[gl::IMPLEMENTATION_MAX_VARYING_VECTORS][4];
  
  struct PixelShaderOutputVariable
  {
      GLenum type;
      std::string name;
      std::string source;
      size_t outputIndex;
  };
  
  class DynamicHLSL : angle::NonCopyable
  {
    public:
      explicit DynamicHLSL(RendererD3D *const renderer);
  
      int packVaryings(gl::InfoLog &infoLog, VaryingPacking packing, ShaderD3D *fragmentShader,
                       ShaderD3D *vertexShader, const std::vector<std::string>& transformFeedbackVaryings);
      std::string generateVertexShaderForInputLayout(const std::string &sourceShader,
                                                     const gl::VertexFormat inputLayout[],
                                                     const std::vector<sh::Attribute> &shaderAttributes) const;
      std::string generatePixelShaderForOutputSignature(const std::string &sourceShader, const std::vector<PixelShaderOutputVariable> &outputVariables,
                                                        bool usesFragDepth, const std::vector<GLenum> &outputLayout) const;
      bool generateShaderLinkHLSL(const gl::Data &data, gl::InfoLog &infoLog, int registers,
                                  const VaryingPacking packing,
                                  std::string &pixelHLSL, std::string &vertexHLSL,
                                  ShaderD3D *fragmentShader, ShaderD3D *vertexShader,
                                  const std::vector<std::string> &transformFeedbackVaryings,
                                  std::vector<gl::LinkedVarying> *linkedVaryings,
                                  std::map<int, gl::VariableLocation> *programOutputVars,
                                  std::vector<PixelShaderOutputVariable> *outPixelShaderKey,
                                  bool *outUsesFragDepth) const;
  
      std::string generateGeometryShaderHLSL(int registers, ShaderD3D *fragmentShader, ShaderD3D *vertexShader) const;
      void getInputLayoutSignature(const gl::VertexFormat inputLayout[], GLenum signature[]) const;
  
    private:
      RendererD3D *const mRenderer;
  
      struct SemanticInfo;
  
      std::string getVaryingSemantic(bool pointSize) const;
      SemanticInfo getSemanticInfo(int startRegisters, bool position, bool fragCoord, bool pointCoord,
                                   bool pointSize, bool pixelShader) const;
      std::string generateVaryingLinkHLSL(const SemanticInfo &info, const std::string &varyingHLSL) const;
      std::string generateVaryingHLSL(const ShaderD3D *shader) const;
      void storeUserLinkedVaryings(const ShaderD3D *vertexShader, std::vector<gl::LinkedVarying> *linkedVaryings) const;
      void storeBuiltinLinkedVaryings(const SemanticInfo &info, std::vector<gl::LinkedVarying> *linkedVaryings) const;
      void defineOutputVariables(ShaderD3D *fragmentShader, std::map<int, gl::VariableLocation> *programOutputVars) const;
      std::string generatePointSpriteHLSL(int registers, ShaderD3D *fragmentShader, ShaderD3D *vertexShader) const;
  
      // Prepend an underscore
      static std::string decorateVariable(const std::string &name);
  
      std::string generateAttributeConversionHLSL(const gl::VertexFormat &vertexFormat, const sh::ShaderVariable &shaderAttrib) const;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_DYNAMICHLSL_H_
  

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