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

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• Author : Bryan Bernhart
  Date : 2016-11-09 11:11:41
  Hash : 619c833b
  Message : Add default compiler options to WebGL shaders. Enforces default compiler options when compiling WebGL compatible shaders. BUG=angleproject:1616 Change-Id: I18490db68b29981fab4817bdd61727752cf50997 Reviewed-on: https://chromium-review.googlesource.com/409016 Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com> Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

• 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;
  class ContextState;
  struct Limitations;
  class ResourceManager;
  class Context;
  
  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;
  
      sh::WorkGroupSize mLocalSize;
  
      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;
  
      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(const Context *context);
      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;
  
      const sh::WorkGroupSize &getWorkGroupSize() const { return mState.mLocalSize; }
  
    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_