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

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• Author : shannon.woods@transgaming.com
  Date : 2013-01-25 21:55:47
  Hash : 3e773bb4
  Message : Implement gl_PointSize point sprite emulation using D3D11 geometry shaders. TRAC #22412 Signed-off-by: Nicolas Capens Signed-off-by: Shannon Woods Author: Jamie Madill git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1786 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libGLESv2/ProgramBinary.h

• //
  // Copyright (c) 2002-2012 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 <GLES2/gl2.h>
  #include <GLES2/gl2ext.h>
  
  #include <string>
  #include <vector>
  
  #include "libGLESv2/Program.h"
  #include "libGLESv2/Context.h"
  #include "libGLESv2/mathutil.h"
  #include "libGLESv2/Shader.h"
  #include "libGLESv2/Uniform.h"
  
  #include "libGLESv2/renderer/ShaderExecutable.h"
  
  namespace gl
  {
  class FragmentShader;
  class VertexShader;
  
  // 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);
      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 setUniformMatrix2fv(GLint location, GLsizei count, const GLfloat *value);
      bool setUniformMatrix3fv(GLint location, GLsizei count, const GLfloat *value);
      bool setUniformMatrix4fv(GLint location, GLsizei count, const GLfloat *value);
      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 getUniformfv(GLint location, GLsizei *bufSize, GLfloat *params);
      bool getUniformiv(GLint location, GLsizei *bufSize, GLint *params);
  
      void dirtyAllUniforms();
      void applyUniforms();
  
      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);
      GLint getActiveAttributeCount();
      GLint getActiveAttributeMaxLength();
  
      void getActiveUniform(GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name);
      GLint getActiveUniformCount();
      GLint getActiveUniformMaxLength();
  
      void validate(InfoLog &infoLog);
      bool validateSamplers(InfoLog *infoLog);
      bool isValidated() const;
  
      unsigned int getSerial() 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);
  
      bool linkAttributes(InfoLog &infoLog, const AttributeBindings &attributeBindings, FragmentShader *fragmentShader, VertexShader *vertexShader);
  
      bool linkUniforms(InfoLog &infoLog, const sh::ActiveUniforms &vertexUniforms, const sh::ActiveUniforms &fragmentUniforms);
      bool defineUniform(GLenum shader, const sh::Uniform &constant, InfoLog &infoLog);
      
      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;
  
      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;
  
      UniformArray mUniforms;
      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_