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

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• Hash : 70961b33
  Author :
  Date : 2013-05-30T00:17:48
  

  Add support for structures in interface and uniform blocks.
  
  Also redesigns the uniform block layout computation to be more general.
  
  TRAC #23018
  
  Signed-off-by: Geoff Lang
  Signed-off-by: Nicolas Capens
  Author: Jamie Madill
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2387 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/ProgramBinary.h

• //
  // Copyright (c) 2002-2013 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_
  
  #define GL_APICALL
  #include <GLES3/gl3.h>
  #include <GLES3/gl3ext.h>
  #include <GLES2/gl2.h>
  #include <GLES2/gl2ext.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"
  
  namespace rx
  {
  class ShaderExecutable;
  class Renderer;
  struct TranslatedAttribute;
  }
  
  namespace gl
  {
  class FragmentShader;
  class VertexShader;
  class InfoLog;
  class AttributeBindings;
  struct Varying;
  class Buffer;
  
  // Struct used for correlating uniforms/elements of uniform arrays to handles
  struct UniformLocation
  {
      UniformLocation()
      {
      }
  
      UniformLocation(const std::string &name, unsigned int element, unsigned int index);
  
      std::string name;
      unsigned int element;
      unsigned int index;
  };
  
  // 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 *getPixelExecutable();
      rx::ShaderExecutable *getVertexExecutable();
      rx::ShaderExecutable *getGeometryExecutable();
  
      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);
      bool setUniform1fv(GLint location, GLsizei count, const GLfloat *v);
      bool setUniform2fv(GLint location, GLsizei count, const GLfloat *v);
      bool setUniform3fv(GLint location, GLsizei count, const GLfloat *v);
      bool setUniform4fv(GLint location, GLsizei count, const GLfloat *v);
      bool setUniform1iv(GLint location, GLsizei count, const GLint *v);
      bool setUniform2iv(GLint location, GLsizei count, const GLint *v);
      bool setUniform3iv(GLint location, GLsizei count, const GLint *v);
      bool setUniform4iv(GLint location, GLsizei count, const GLint *v);
      bool setUniform1uiv(GLint location, GLsizei count, const GLuint *v);
      bool setUniform2uiv(GLint location, GLsizei count, const GLuint *v);
      bool setUniform3uiv(GLint location, GLsizei count, const GLuint *v);
      bool setUniform4uiv(GLint location, GLsizei count, const GLuint *v);
      bool setUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool setUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool setUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool setUniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool setUniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool setUniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool setUniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool setUniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
      bool 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<gl::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);
      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;
  
      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);
  
      void validate(InfoLog &infoLog);
      bool validateSamplers(InfoLog *infoLog);
      bool isValidated() const;
  
      unsigned int getSerial() const;
      int getShaderVersion() const;
  
      void sortAttributesByLayout(rx::TranslatedAttribute attributes[gl::MAX_VERTEX_ATTRIBS], int sortedSemanticIndices[MAX_VERTEX_ATTRIBS]) const;
  
      static std::string decorateAttribute(const std::string &name);    // Prepend an underscore
  
    private:
      DISALLOW_COPY_AND_ASSIGN(ProgramBinary);
  
      int packVaryings(InfoLog &infoLog, const Varying *packing[][4], FragmentShader *fragmentShader);
      bool linkVaryings(InfoLog &infoLog, int registers, const Varying *packing[][4],
                        std::string& pixelHLSL, std::string& vertexHLSL,
                        FragmentShader *fragmentShader, VertexShader *vertexShader);
      std::string generateVaryingHLSL(FragmentShader *fragmentShader, const std::string &varyingSemantic) const;
  
      bool linkAttributes(InfoLog &infoLog, const AttributeBindings &attributeBindings, FragmentShader *fragmentShader, VertexShader *vertexShader);
  
      typedef sh::BlockMemberInfoArray::const_iterator BlockInfoItr;
  
      bool areMatchingUniforms(InfoLog &infoLog, const std::string& uniformName, const sh::Uniform &vertexUniform, const sh::Uniform &fragmentUniform);
      bool linkUniforms(InfoLog &infoLog, const sh::ActiveUniforms &vertexUniforms, const sh::ActiveUniforms &fragmentUniforms);
      bool defineUniform(GLenum shader, const sh::Uniform &constant, InfoLog &infoLog);
      bool areMatchingInterfaceBlocks(InfoLog &infoLog, const sh::InterfaceBlock &vertexInterfaceBlock, const sh::InterfaceBlock &fragmentInterfaceBlock);
      bool linkUniformBlocks(InfoLog &infoLog, const sh::ActiveInterfaceBlocks &vertexUniformBlocks, const sh::ActiveInterfaceBlocks &fragmentUniformBlocks);
      void defineUniformBlockMembers(const sh::ActiveUniforms &uniforms, const std::string &prefix, int blockIndex, BlockInfoItr *blockInfoItr, std::vector<unsigned int> *blockUniformIndexes);
      bool defineUniformBlock(InfoLog &infoLog, GLenum shader, const sh::InterfaceBlock &interfaceBlock);
      bool assignUniformBlockRegister(InfoLog &infoLog, UniformBlock *uniformBlock, GLenum shader, unsigned int registerIndex);
      
      std::string generateGeometryShaderHLSL(int registers, const Varying *packing[][4], FragmentShader *fragmentShader, VertexShader *vertexShader) const;
      std::string generatePointSpriteHLSL(int registers, const Varying *packing[][4], FragmentShader *fragmentShader, VertexShader *vertexShader) const;
  
      template <typename T>
      bool setUniform(GLint location, GLsizei count, const T* v, GLenum targetUniformType);
  
      template <int cols, int rows>
      bool 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);
  
      rx::Renderer *const mRenderer;
  
      rx::ShaderExecutable *mPixelExecutable;
      rx::ShaderExecutable *mVertexExecutable;
      rx::ShaderExecutable *mGeometryExecutable;
  
      Attribute mLinkedAttribute[MAX_VERTEX_ATTRIBS];
      int mSemanticIndex[MAX_VERTEX_ATTRIBS];
  
      struct Sampler
      {
          Sampler();
  
          bool active;
          GLint logicalTextureUnit;
          TextureType textureType;
      };
  
      Sampler mSamplersPS[MAX_TEXTURE_IMAGE_UNITS];
      Sampler mSamplersVS[IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS];
      GLuint mUsedVertexSamplerRange;
      GLuint mUsedPixelSamplerRange;
      bool mUsesPointSize;
      int mShaderVersion;
  
      UniformArray mUniforms;
      UniformBlockArray mUniformBlocks;
      typedef std::vector<UniformLocation> UniformIndex;
      UniformIndex mUniformIndex;
  
      bool mValidated;
  
      const unsigned int mSerial;
  
      static unsigned int issueSerial();
      static unsigned int mCurrentSerial;
  };
  }
  
  #endif   // LIBGLESV2_PROGRAM_BINARY_H_
  

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