kc3-lang/angle/src/libGLESv2/ProgramBinary.h

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• Author : Jamie Madill
  Date : 2014-07-18 10:33:12
  Hash : e04a5b7b
  Message : Remove sh::InterfaceBlock member info. We can compute the interface block member info entirely on the API side. This will allow us to get rid of some un-necessary code in the compiler. BUG=angle:466 Change-Id: I664ffc82de5f2723156e51f4e9ffc07e4de162aa Reviewed-on: https://chromium-review.googlesource.com/207781 Reviewed-by: Zhenyao Mo <zmo@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Nicolas Capens <capn@chromium.org>

• src/libGLESv2/ProgramBinary.h

• //
  // Copyright (c) 2002-2014 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.
  //
  
  // Program.h: Defines the gl::Program class. Implements GL program objects
  // and related functionality. [OpenGL ES 2.0.24] section 2.10.3 page 28.
  
  #ifndef LIBGLESV2_PROGRAM_BINARY_H_
  #define LIBGLESV2_PROGRAM_BINARY_H_
  
  #include "angle_gl.h"
  
  #include <string>
  #include <vector>
  
  #include "common/RefCountObject.h"
  #include "angletypes.h"
  #include "common/mathutil.h"
  #include "libGLESv2/Uniform.h"
  #include "libGLESv2/Shader.h"
  #include "libGLESv2/Constants.h"
  #include "libGLESv2/renderer/d3d/VertexDataManager.h"
  #include "libGLESv2/DynamicHLSL.h"
  
  namespace sh
  {
  class HLSLBlockEncoder;
  }
  
  namespace rx
  {
  class ShaderExecutable;
  class Renderer;
  struct TranslatedAttribute;
  class UniformStorage;
  }
  
  namespace gl
  {
  class FragmentShader;
  class VertexShader;
  class InfoLog;
  class AttributeBindings;
  class Buffer;
  class Framebuffer;
  
  // Struct used for correlating uniforms/elements of uniform arrays to handles
  struct VariableLocation
  {
      VariableLocation()
      {
      }
  
      VariableLocation(const std::string &name, unsigned int element, unsigned int index);
  
      std::string name;
      unsigned int element;
      unsigned int index;
  };
  
  struct LinkedVarying
  {
      LinkedVarying();
      LinkedVarying(const std::string &name, GLenum type, GLsizei size, const std::string &semanticName,
                    unsigned int semanticIndex, unsigned int semanticIndexCount);
  
      // Original GL name
      std::string name;
  
      GLenum type;
      GLsizei size;
  
      // DirectX semantic information
      std::string semanticName;
      unsigned int semanticIndex;
      unsigned int semanticIndexCount;
  };
  
  // This is the result of linking a program. It is the state that would be passed to ProgramBinary.
  class ProgramBinary : public RefCountObject
  {
    public:
      explicit ProgramBinary(rx::Renderer *renderer);
      ~ProgramBinary();
  
      rx::ShaderExecutable *getPixelExecutableForFramebuffer(const Framebuffer *fbo);
      rx::ShaderExecutable *getPixelExecutableForOutputLayout(const std::vector<GLenum> &outputLayout);
      rx::ShaderExecutable *getVertexExecutableForInputLayout(const VertexFormat inputLayout[MAX_VERTEX_ATTRIBS]);
      rx::ShaderExecutable *getGeometryExecutable() const;
  
      GLuint getAttributeLocation(const char *name);
      int getSemanticIndex(int attributeIndex);
  
      GLint getSamplerMapping(SamplerType type, unsigned int samplerIndex);
      TextureType getSamplerTextureType(SamplerType type, unsigned int samplerIndex);
      GLint getUsedSamplerRange(SamplerType type);
      bool usesPointSize() const;
      bool usesPointSpriteEmulation() const;
      bool usesGeometryShader() const;
  
      GLint getUniformLocation(std::string name);
      GLuint getUniformIndex(std::string name);
      GLuint getUniformBlockIndex(std::string name);
      void setUniform1fv(GLint location, GLsizei count, const GLfloat *v);
      void setUniform2fv(GLint location, GLsizei count, const GLfloat *v);
      void setUniform3fv(GLint location, GLsizei count, const GLfloat *v);
      void setUniform4fv(GLint location, GLsizei count, const GLfloat *v);
      void setUniform1iv(GLint location, GLsizei count, const GLint *v);
      void setUniform2iv(GLint location, GLsizei count, const GLint *v);
      void setUniform3iv(GLint location, GLsizei count, const GLint *v);
      void setUniform4iv(GLint location, GLsizei count, const GLint *v);
      void setUniform1uiv(GLint location, GLsizei count, const GLuint *v);
      void setUniform2uiv(GLint location, GLsizei count, const GLuint *v);
      void setUniform3uiv(GLint location, GLsizei count, const GLuint *v);
      void setUniform4uiv(GLint location, GLsizei count, const GLuint *v);
      void setUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      void setUniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
  
      bool getUniformfv(GLint location, GLsizei *bufSize, GLfloat *params);
      bool getUniformiv(GLint location, GLsizei *bufSize, GLint *params);
      bool getUniformuiv(GLint location, GLsizei *bufSize, GLuint *params);
  
      void dirtyAllUniforms();
      void applyUniforms();
      bool applyUniformBuffers(const std::vector<Buffer*> boundBuffers);
  
      bool load(InfoLog &infoLog, const void *binary, GLsizei length);
      bool save(void* binary, GLsizei bufSize, GLsizei *length);
      GLint getLength();
  
      bool link(InfoLog &infoLog, const AttributeBindings &attributeBindings, FragmentShader *fragmentShader, VertexShader *vertexShader,
                const std::vector<std::string>& transformFeedbackVaryings, GLenum transformFeedbackBufferMode);
      void getAttachedShaders(GLsizei maxCount, GLsizei *count, GLuint *shaders);
  
      void getActiveAttribute(GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name) const;
      GLint getActiveAttributeCount() const;
      GLint getActiveAttributeMaxLength() const;
  
      void getActiveUniform(GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name) const;
      GLint getActiveUniformCount() const;
      GLint getActiveUniformMaxLength() const;
      GLint getActiveUniformi(GLuint index, GLenum pname) const;
      bool isValidUniformLocation(GLint location) const;
      LinkedUniform *getUniformByLocation(GLint location) const;
      LinkedUniform *getUniformByName(const std::string &name) const;
  
      void getActiveUniformBlockName(GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName) const;
      void getActiveUniformBlockiv(GLuint uniformBlockIndex, GLenum pname, GLint *params) const;
      GLuint getActiveUniformBlockCount() const;
      GLuint getActiveUniformBlockMaxLength() const;
      UniformBlock *getUniformBlockByIndex(GLuint blockIndex);
  
      GLint getFragDataLocation(const char *name) const;
  
      size_t getTransformFeedbackVaryingCount() const;
      const LinkedVarying &getTransformFeedbackVarying(size_t idx) const;
      GLenum getTransformFeedbackBufferMode() const;
  
      void validate(InfoLog &infoLog);
      bool validateSamplers(InfoLog *infoLog);
      bool isValidated() const;
      void updateSamplerMapping();
  
      unsigned int getSerial() const;
      int getShaderVersion() const;
  
      void initAttributesByLayout();
      void sortAttributesByLayout(rx::TranslatedAttribute attributes[MAX_VERTEX_ATTRIBS], int sortedSemanticIndices[MAX_VERTEX_ATTRIBS]) const;
  
      const std::vector<LinkedUniform*> &getUniforms() const { return mUniforms; }
      const rx::UniformStorage &getVertexUniformStorage() const { return *mVertexUniformStorage; }
      const rx::UniformStorage &getFragmentUniformStorage() const { return *mFragmentUniformStorage; }
  
    private:
      DISALLOW_COPY_AND_ASSIGN(ProgramBinary);
  
      struct Sampler
      {
          Sampler();
  
          bool active;
          GLint logicalTextureUnit;
          TextureType textureType;
      };
  
      void reset();
  
      bool linkVaryings(InfoLog &infoLog, FragmentShader *fragmentShader, VertexShader *vertexShader);
      bool linkAttributes(InfoLog &infoLog, const AttributeBindings &attributeBindings, FragmentShader *fragmentShader, VertexShader *vertexShader);
  
      template <class ShaderVarType>
      bool linkValidateFields(InfoLog &infoLog, const std::string &varName, const ShaderVarType &vertexVar, const ShaderVarType &fragmentVar);
      bool linkValidateVariablesBase(InfoLog &infoLog, const std::string &variableName, const sh::ShaderVariable &vertexVariable, const sh::ShaderVariable &fragmentVariable, bool validatePrecision);
  
      bool linkValidateVariables(InfoLog &infoLog, const std::string &uniformName, const sh::Uniform &vertexUniform, const sh::Uniform &fragmentUniform);
      bool linkValidateVariables(InfoLog &infoLog, const std::string &varyingName, const sh::Varying &vertexVarying, const sh::Varying &fragmentVarying);
      bool linkValidateVariables(InfoLog &infoLog, const std::string &uniformName, const sh::InterfaceBlockField &vertexUniform, const sh::InterfaceBlockField &fragmentUniform);
      bool linkUniforms(InfoLog &infoLog, const VertexShader &vertexShader, const FragmentShader &fragmentShader);
      void defineUniformBase(GLenum shader, const sh::Uniform &uniform, unsigned int uniformRegister);
      void defineUniform(GLenum shader, const sh::Uniform &uniform, const std::string &fullName, sh::HLSLBlockEncoder *encoder);
      bool indexSamplerUniform(const LinkedUniform &uniform, InfoLog &infoLog);
      bool indexUniforms(InfoLog &infoLog);
      static bool assignSamplers(unsigned int startSamplerIndex, GLenum samplerType, unsigned int samplerCount,
                                 Sampler *outArray, GLuint *usedRange, unsigned int limit);
      bool areMatchingInterfaceBlocks(InfoLog &infoLog, const sh::InterfaceBlock &vertexInterfaceBlock, const sh::InterfaceBlock &fragmentInterfaceBlock);
      bool linkUniformBlocks(InfoLog &infoLog, const VertexShader &vertexShader, const FragmentShader &fragmentShader);
      bool gatherTransformFeedbackLinkedVaryings(InfoLog &infoLog, const std::vector<LinkedVarying> &linkedVaryings,
                                                 const std::vector<std::string> &transformFeedbackVaryingNames,
                                                 GLenum transformFeedbackBufferMode,
                                                 std::vector<LinkedVarying> *outTransformFeedbackLinkedVaryings) const;
      void defineUniformBlockMembers(const std::vector<sh::InterfaceBlockField> &fields, const std::string &prefix, int blockIndex,
                                     sh::BlockLayoutEncoder *encoder, std::vector<unsigned int> *blockUniformIndexes);
      bool defineUniformBlock(InfoLog &infoLog, const Shader &shader, const sh::InterfaceBlock &interfaceBlock);
      bool assignUniformBlockRegister(InfoLog &infoLog, UniformBlock *uniformBlock, GLenum shader, unsigned int registerIndex);
      void defineOutputVariables(FragmentShader *fragmentShader);
      void initializeUniformStorage();
  
      template <typename T>
      void setUniform(GLint location, GLsizei count, const T* v, GLenum targetUniformType);
  
      template <int cols, int rows>
      void setUniformMatrixfv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value, GLenum targetUniformType);
  
      template <typename T>
      bool getUniformv(GLint location, GLsizei *bufSize, T *params, GLenum uniformType);
  
      class VertexExecutable
      {
        public:
          VertexExecutable(const VertexFormat inputLayout[MAX_VERTEX_ATTRIBS],
                           const GLenum signature[MAX_VERTEX_ATTRIBS],
                           rx::ShaderExecutable *shaderExecutable);
          ~VertexExecutable();
  
          bool matchesSignature(const GLenum convertedLayout[MAX_VERTEX_ATTRIBS]) const;
  
          const VertexFormat *inputs() const { return mInputs; }
          const GLenum *signature() const { return mSignature; }
          rx::ShaderExecutable *shaderExecutable() const { return mShaderExecutable; }
  
        private:
          VertexFormat mInputs[MAX_VERTEX_ATTRIBS];
          GLenum mSignature[MAX_VERTEX_ATTRIBS];
          rx::ShaderExecutable *mShaderExecutable;
      };
  
      class PixelExecutable
      {
        public:
          PixelExecutable(const std::vector<GLenum> &outputSignature, rx::ShaderExecutable *shaderExecutable);
          ~PixelExecutable();
  
          // FIXME(geofflang): Work around NVIDIA driver bug by repacking buffers
          bool matchesSignature(const std::vector<GLenum> &signature) const { return true; /* mOutputSignature == signature; */ }
  
          const std::vector<GLenum> &outputSignature() const { return mOutputSignature; }
          rx::ShaderExecutable *shaderExecutable() const { return mShaderExecutable; }
  
        private:
          std::vector<GLenum> mOutputSignature;
          rx::ShaderExecutable *mShaderExecutable;
      };
  
      rx::Renderer *const mRenderer;
      DynamicHLSL *mDynamicHLSL;
  
      std::string mVertexHLSL;
      rx::D3DWorkaroundType mVertexWorkarounds;
      std::vector<VertexExecutable *> mVertexExecutables;
  
      std::string mPixelHLSL;
      rx::D3DWorkaroundType mPixelWorkarounds;
      bool mUsesFragDepth;
      std::vector<PixelShaderOuputVariable> mPixelShaderKey;
      std::vector<PixelExecutable *> mPixelExecutables;
  
      rx::ShaderExecutable *mGeometryExecutable;
  
      sh::Attribute mLinkedAttribute[MAX_VERTEX_ATTRIBS];
      sh::Attribute mShaderAttributes[MAX_VERTEX_ATTRIBS];
      int mSemanticIndex[MAX_VERTEX_ATTRIBS];
      int mAttributesByLayout[MAX_VERTEX_ATTRIBS];
  
      GLenum mTransformFeedbackBufferMode;
      std::vector<LinkedVarying> mTransformFeedbackLinkedVaryings;
  
      Sampler mSamplersPS[MAX_TEXTURE_IMAGE_UNITS];
      Sampler mSamplersVS[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
      GLuint mUsedVertexSamplerRange;
      GLuint mUsedPixelSamplerRange;
      bool mUsesPointSize;
      int mShaderVersion;
      bool mDirtySamplerMapping;
  
      std::vector<LinkedUniform*> mUniforms;
      std::vector<UniformBlock*> mUniformBlocks;
      std::vector<VariableLocation> mUniformIndex;
      std::map<int, VariableLocation> mOutputVariables;
      rx::UniformStorage *mVertexUniformStorage;
      rx::UniformStorage *mFragmentUniformStorage;
  
      bool mValidated;
  
      const unsigned int mSerial;
  
      static unsigned int issueSerial();
      static unsigned int mCurrentSerial;
  };
  
  }
  
  #endif   // LIBGLESV2_PROGRAM_BINARY_H_