kc3-lang/angle/src/libANGLE/Shader.h

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• Hash : 7aea7e05
  Author :
  Date : 2016-05-10T10:39:45
  

  Add EGLImplFactory.
  
  Also rename ImplFactory to GLImplFactory.
  
  This will allow us to use the same factory design pattern for EGL
  objects, and to use State helper classes to share data with Impls.
  
  BUG=angleproject:1363
  BUG=angleproject:1369
  
  Change-Id: I07a8fe40838d5d4ca32b04910c306edeab4d25a7
  Reviewed-on: https://chromium-review.googlesource.com/342051
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/Shader.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.
  //
  
  // Shader.h: Defines the abstract gl::Shader class and its concrete derived
  // classes VertexShader and FragmentShader. Implements GL shader objects and
  // related functionality. [OpenGL ES 2.0.24] section 2.10 page 24 and section
  // 3.8 page 84.
  
  #ifndef LIBANGLE_SHADER_H_
  #define LIBANGLE_SHADER_H_
  
  #include <string>
  #include <list>
  #include <vector>
  
  #include "angle_gl.h"
  #include <GLSLANG/ShaderLang.h>
  
  #include "common/angleutils.h"
  #include "libANGLE/angletypes.h"
  #include "libANGLE/Debug.h"
  
  namespace rx
  {
  class GLImplFactory;
  class ShaderImpl;
  class ShaderSh;
  }
  
  namespace gl
  {
  class Compiler;
  struct ContextState;
  struct Limitations;
  class ResourceManager;
  
  class ShaderState final : angle::NonCopyable
  {
    public:
      ShaderState(GLenum shaderType);
      ~ShaderState();
  
      const std::string &getLabel() const { return mLabel; }
  
      const std::string &getSource() const { return mSource; }
      const std::string &getTranslatedSource() const { return mTranslatedSource; }
  
      GLenum getShaderType() const { return mShaderType; }
      int getShaderVersion() const { return mShaderVersion; }
  
      const std::vector<sh::Varying> &getVaryings() const { return mVaryings; }
      const std::vector<sh::Uniform> &getUniforms() const { return mUniforms; }
      const std::vector<sh::InterfaceBlock> &getInterfaceBlocks() const { return mInterfaceBlocks; }
      const std::vector<sh::Attribute> &getActiveAttributes() const { return mActiveAttributes; }
      const std::vector<sh::OutputVariable> &getActiveOutputVariables() const
      {
          return mActiveOutputVariables;
      }
  
    private:
      friend class Shader;
  
      std::string mLabel;
  
      GLenum mShaderType;
      int mShaderVersion;
      std::string mTranslatedSource;
      std::string mSource;
  
      std::vector<sh::Varying> mVaryings;
      std::vector<sh::Uniform> mUniforms;
      std::vector<sh::InterfaceBlock> mInterfaceBlocks;
      std::vector<sh::Attribute> mActiveAttributes;
      std::vector<sh::OutputVariable> mActiveOutputVariables;
  };
  
  class Shader final : angle::NonCopyable, public LabeledObject
  {
    public:
      Shader(ResourceManager *manager,
             rx::GLImplFactory *implFactory,
             const gl::Limitations &rendererLimitations,
             GLenum type,
             GLuint handle);
  
      virtual ~Shader();
  
      void setLabel(const std::string &label) override;
      const std::string &getLabel() const override;
  
      GLenum getType() const { return mType; }
      GLuint getHandle() const;
  
      const rx::ShaderImpl *getImplementation() const { return mImplementation; }
  
      void deleteSource();
      void setSource(GLsizei count, const char *const *string, const GLint *length);
      int getInfoLogLength() const;
      void getInfoLog(GLsizei bufSize, GLsizei *length, char *infoLog) const;
      int getSourceLength() const;
      void getSource(GLsizei bufSize, GLsizei *length, char *buffer) const;
      int getTranslatedSourceLength() const;
      int getTranslatedSourceWithDebugInfoLength() const;
      const std::string &getTranslatedSource() const { return mState.getTranslatedSource(); }
      void getTranslatedSource(GLsizei bufSize, GLsizei *length, char *buffer) const;
      void getTranslatedSourceWithDebugInfo(GLsizei bufSize, GLsizei *length, char *buffer) const;
  
      void compile(Compiler *compiler);
      bool isCompiled() const { return mCompiled; }
  
      void addRef();
      void release();
      unsigned int getRefCount() const;
      bool isFlaggedForDeletion() const;
      void flagForDeletion();
  
      int getShaderVersion() const;
  
      const std::vector<sh::Varying> &getVaryings() const;
      const std::vector<sh::Uniform> &getUniforms() const;
      const std::vector<sh::InterfaceBlock> &getInterfaceBlocks() const;
      const std::vector<sh::Attribute> &getActiveAttributes() const;
      const std::vector<sh::OutputVariable> &getActiveOutputVariables() const;
  
      int getSemanticIndex(const std::string &attributeName) const;
  
    private:
      static void getSourceImpl(const std::string &source, GLsizei bufSize, GLsizei *length, char *buffer);
  
      ShaderState mState;
      rx::ShaderImpl *mImplementation;
      const gl::Limitations &mRendererLimitations;
      const GLuint mHandle;
      const GLenum mType;
      unsigned int mRefCount;     // Number of program objects this shader is attached to
      bool mDeleteStatus;         // Flag to indicate that the shader can be deleted when no longer in use
      bool mCompiled;             // Indicates if this shader has been successfully compiled
      std::string mInfoLog;
  
      ResourceManager *mResourceManager;
  };
  
  bool CompareShaderVar(const sh::ShaderVariable &x, const sh::ShaderVariable &y);
  }
  
  #endif   // LIBANGLE_SHADER_H_
  

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