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

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• Hash : 4e0e6f8a
  Author :
  Date : 2017-02-17T11:06:03
  

  WebGL Compat: Add DEPTH_STENCIL renderbuffers.
  
  This special internal format was defined in the WebGL 1 spec as a
  special unsized format with at least 16 bits of depth and at least
  8 bits of stencil. Intenally ANGLE will translate this to packed
  24/8 depth/stencil.
  
  The new test is adapted from the WebGL test:
  conformance/renderbuffers/framebuffer-object-attachment
  
  BUG=angleproject:1708
  
  Change-Id: I44b03e41889eed02481f603b8d52c530dcfed5ce
  Reviewed-on: https://chromium-review.googlesource.com/442094
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/ContextState.h

• //
  // Copyright (c) 2014 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.
  //
  
  // ContextState: Container class for all GL context state, caps and objects.
  
  #ifndef LIBANGLE_CONTEXTSTATE_H_
  #define LIBANGLE_CONTEXTSTATE_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/State.h"
  #include "libANGLE/Version.h"
  
  namespace gl
  {
  class BufferManager;
  class ContextState;
  class FenceSyncManager;
  class FramebufferManager;
  class PathManager;
  class RenderbufferManager;
  class SamplerManager;
  class ShaderProgramManager;
  class TextureManager;
  class ValidationContext;
  
  static constexpr Version ES_2_0 = Version(2, 0);
  static constexpr Version ES_3_0 = Version(3, 0);
  static constexpr Version ES_3_1 = Version(3, 1);
  
  class ContextState final : public angle::NonCopyable
  {
    public:
      ContextState(uintptr_t context,
                   const ContextState *shareContextState,
                   TextureManager *shareTextures,
                   const Version &clientVersion,
                   State *state,
                   const Caps &caps,
                   const TextureCapsMap &textureCaps,
                   const Extensions &extensions,
                   const Limitations &limitations);
      ~ContextState();
  
      uintptr_t getContext() const { return mContext; }
      GLint getClientMajorVersion() const { return mClientVersion.major; }
      GLint getClientMinorVersion() const { return mClientVersion.minor; }
      const Version &getClientVersion() const { return mClientVersion; }
      const State &getState() const { return *mState; }
      const Caps &getCaps() const { return mCaps; }
      const TextureCapsMap &getTextureCaps() const { return mTextureCaps; }
      const Extensions &getExtensions() const { return mExtensions; }
      const Limitations &getLimitations() const { return mLimitations; }
  
      const TextureCaps &getTextureCap(GLenum internalFormat) const;
  
      bool usingDisplayTextureShareGroup() const;
  
    private:
      friend class Context;
      friend class ValidationContext;
  
      Version mClientVersion;
      uintptr_t mContext;
      State *mState;
      const Caps &mCaps;
      const TextureCapsMap &mTextureCaps;
      const Extensions &mExtensions;
      const Limitations &mLimitations;
  
      BufferManager *mBuffers;
      ShaderProgramManager *mShaderPrograms;
      TextureManager *mTextures;
      RenderbufferManager *mRenderbuffers;
      SamplerManager *mSamplers;
      FenceSyncManager *mFenceSyncs;
      PathManager *mPaths;
      FramebufferManager *mFramebuffers;
  };
  
  class ValidationContext : angle::NonCopyable
  {
    public:
      ValidationContext(const ValidationContext *shareContext,
                        TextureManager *shareTextures,
                        const Version &clientVersion,
                        State *state,
                        const Caps &caps,
                        const TextureCapsMap &textureCaps,
                        const Extensions &extensions,
                        const Limitations &limitations,
                        bool skipValidation);
      virtual ~ValidationContext() {}
  
      virtual void handleError(const Error &error) = 0;
  
      const ContextState &getContextState() const { return mState; }
      GLint getClientMajorVersion() const { return mState.getClientMajorVersion(); }
      GLint getClientMinorVersion() const { return mState.getClientMinorVersion(); }
      const Version &getClientVersion() const { return mState.getClientVersion(); }
      const State &getGLState() const { return mState.getState(); }
      const Caps &getCaps() const { return mState.getCaps(); }
      const TextureCapsMap &getTextureCaps() const { return mState.getTextureCaps(); }
      const Extensions &getExtensions() const { return mState.getExtensions(); }
      const Limitations &getLimitations() const { return mState.getLimitations(); }
      bool skipValidation() const { return mSkipValidation; }
  
      // Specific methods needed for validation.
      bool getQueryParameterInfo(GLenum pname, GLenum *type, unsigned int *numParams);
      bool getIndexedQueryParameterInfo(GLenum target, GLenum *type, unsigned int *numParams);
  
      Program *getProgram(GLuint handle) const;
      Shader *getShader(GLuint handle) const;
  
      bool isTextureGenerated(GLuint texture) const;
      bool isBufferGenerated(GLuint buffer) const;
      bool isRenderbufferGenerated(GLuint renderbuffer) const;
      bool isFramebufferGenerated(GLuint framebuffer) const;
  
      bool usingDisplayTextureShareGroup() const;
  
      // Hack for the special WebGL 1 "DEPTH_STENCIL" internal format.
      GLenum getConvertedRenderbufferFormat(GLenum internalformat) const;
  
    protected:
      ContextState mState;
      bool mSkipValidation;
      bool mDisplayTextureShareGroup;
  };
  }  // namespace gl
  
  #endif  // LIBANGLE_CONTEXTSTATE_H_
  

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