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

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• Author : jbauman@chromium.org
  Date : 2011-10-18 23:01:46
  Hash : b6e7222c
  Message : Avoid iterating over unused samplers. Keep track of the maximum used sampler to avoid expensive iterations in applyTextures and validateSamplers. BUG= TEST=webgl conformance tests Review URL: http://codereview.appspot.com/5246061 git-svn-id: https://angleproject.googlecode.com/svn/trunk@795 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/libGLESv2/Program.h

• //
  // Copyright (c) 2002-2011 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_H_
  #define LIBGLESV2_PROGRAM_H_
  
  #include <d3dx9.h>
  #include <d3dcompiler.h>
  #include <string>
  #include <vector>
  #include <set>
  
  #include "libGLESv2/Shader.h"
  #include "libGLESv2/Context.h"
  
  namespace gl
  {
  class ResourceManager;
  class FragmentShader;
  class VertexShader;
  
  // Helper struct representing a single shader uniform
  struct Uniform
  {
      Uniform(GLenum type, const std::string &_name, unsigned int arraySize);
  
      ~Uniform();
  
      bool isArray();
  
      const GLenum type;
      const std::string _name;   // Decorated name
      const std::string name;    // Undecorated name
      const unsigned int arraySize;
  
      unsigned char *data;
      bool dirty;
  
      D3DXHANDLE vsHandle;
      D3DXHANDLE psHandle;
      bool handlesSet;
  };
  
  // Struct used for correlating uniforms/elements of uniform arrays to handles
  struct UniformLocation
  {
      UniformLocation(const std::string &_name, unsigned int element, unsigned int index);
  
      std::string name;
      unsigned int element;
      unsigned int index;
  };
  
  class Program
  {
    public:
      Program(ResourceManager *manager, GLuint handle);
  
      ~Program();
  
      bool attachShader(Shader *shader);
      bool detachShader(Shader *shader);
      int getAttachedShadersCount() const;
  
      IDirect3DPixelShader9 *getPixelShader();
      IDirect3DVertexShader9 *getVertexShader();
  
      void bindAttributeLocation(GLuint index, const char *name);
      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);
  
      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, GLfloat *params);
      bool getUniformiv(GLint location, GLint *params);
  
      GLint getDxDepthRangeLocation() const;
      GLint getDxDepthLocation() const;
      GLint getDxViewportLocation() const;
      GLint getDxHalfPixelSizeLocation() const;
      GLint getDxFrontCCWLocation() const;
      GLint getDxPointsOrLinesLocation() const;
  
      void dirtyAllUniforms();
      void applyUniforms();
  
      void link();
      bool isLinked();
      int getInfoLogLength() const;
      void getInfoLog(GLsizei bufSize, GLsizei *length, char *infoLog);
      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 addRef();
      void release();
      unsigned int getRefCount() const;
      void flagForDeletion();
      bool isFlaggedForDeletion() const;
  
      void validate();
      bool validateSamplers(bool logErrors);
      bool isValidated() const;
  
      unsigned int getSerial() const;
  
      static std::string decorateAttribute(const std::string &name);    // Prepend an underscore
      static std::string undecorateUniform(const std::string &_name);   // Remove leading underscore
  
    private:
      DISALLOW_COPY_AND_ASSIGN(Program);
  
      ID3D10Blob *compileToBinary(const char *hlsl, const char *profile, ID3DXConstantTable **constantTable);
      void unlink(bool destroy = false);
  
      int packVaryings(const Varying *packing[][4]);
      bool linkVaryings();
  
      bool linkAttributes();
      int getAttributeBinding(const std::string &name);
  
      bool linkUniforms(ID3DXConstantTable *constantTable);
      bool defineUniform(const D3DXHANDLE &constantHandle, const D3DXCONSTANT_DESC &constantDescription, std::string name = "");
      bool defineUniform(const D3DXCONSTANT_DESC &constantDescription, std::string &name);
      Uniform *createUniform(const D3DXCONSTANT_DESC &constantDescription, std::string &name);
      bool applyUniform1bv(Uniform *targetUniform, GLsizei count, const GLboolean *v);
      bool applyUniform2bv(Uniform *targetUniform, GLsizei count, const GLboolean *v);
      bool applyUniform3bv(Uniform *targetUniform, GLsizei count, const GLboolean *v);
      bool applyUniform4bv(Uniform *targetUniform, GLsizei count, const GLboolean *v);
      bool applyUniform1fv(Uniform *targetUniform, GLsizei count, const GLfloat *v);
      bool applyUniform2fv(Uniform *targetUniform, GLsizei count, const GLfloat *v);
      bool applyUniform3fv(Uniform *targetUniform, GLsizei count, const GLfloat *v);
      bool applyUniform4fv(Uniform *targetUniform, GLsizei count, const GLfloat *v);
      bool applyUniformMatrix2fv(Uniform *targetUniform, GLsizei count, const GLfloat *value);
      bool applyUniformMatrix3fv(Uniform *targetUniform, GLsizei count, const GLfloat *value);
      bool applyUniformMatrix4fv(Uniform *targetUniform, GLsizei count, const GLfloat *value);
      bool applyUniform1iv(Uniform *targetUniform, GLsizei count, const GLint *v);
      bool applyUniform2iv(Uniform *targetUniform, GLsizei count, const GLint *v);
      bool applyUniform3iv(Uniform *targetUniform, GLsizei count, const GLint *v);
      bool applyUniform4iv(Uniform *targetUniform, GLsizei count, const GLint *v);
  
      void getConstantHandles(Uniform *targetUniform, D3DXHANDLE *constantPS, D3DXHANDLE *constantVS);
  
      void appendToInfoLogSanitized(const char *message);
      void appendToInfoLog(const char *info, ...);
      void resetInfoLog();
  
      static unsigned int issueSerial();
  
      FragmentShader *mFragmentShader;
      VertexShader *mVertexShader;
  
      std::string mPixelHLSL;
      std::string mVertexHLSL;
  
      IDirect3DPixelShader9 *mPixelExecutable;
      IDirect3DVertexShader9 *mVertexExecutable;
      ID3DXConstantTable *mConstantTablePS;
      ID3DXConstantTable *mConstantTableVS;
  
      std::set<std::string> mAttributeBinding[MAX_VERTEX_ATTRIBS];
      Attribute mLinkedAttribute[MAX_VERTEX_ATTRIBS];
      int mSemanticIndex[MAX_VERTEX_ATTRIBS];
  
      struct Sampler
      {
          bool active;
          GLint logicalTextureUnit;
          TextureType textureType;
      };
  
      Sampler mSamplersPS[MAX_TEXTURE_IMAGE_UNITS];
      Sampler mSamplersVS[MAX_VERTEX_TEXTURE_IMAGE_UNITS_VTF];
      GLuint mUsedVertexSamplerRange;
      GLuint mUsedPixelSamplerRange;
  
      typedef std::vector<Uniform*> UniformArray;
      UniformArray mUniforms;
      typedef std::vector<UniformLocation> UniformIndex;
      UniformIndex mUniformIndex;
  
      GLint mDxDepthRangeLocation;
      GLint mDxDepthLocation;
      GLint mDxViewportLocation;
      GLint mDxHalfPixelSizeLocation;
      GLint mDxFrontCCWLocation;
      GLint mDxPointsOrLinesLocation;
  
      bool mLinked;
      bool mDeleteStatus;   // Flag to indicate that the program can be deleted when no longer in use
      char *mInfoLog;
      bool mValidated;
  
      unsigned int mRefCount;
  
      const unsigned int mSerial;
  
      static unsigned int mCurrentSerial;
  
      ResourceManager *mResourceManager;
      const GLuint mHandle;
  };
  }
  
  #endif   // LIBGLESV2_PROGRAM_H_