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

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• Author : Jamie Madill
  Date : 2018-03-08 20:28:32
  Hash : 5b772312
  Message : Nuke ValidationContext. This pattern never really took off. It was intended to be used to unit-test our Validation logic, but it become so complex because of interactions with Framebuffer::syncState that we could never really make use of it. Nuke it entirely and simplify the Context class. Bug: angleproject:2372 Change-Id: I40b9d46ce7706511a210da496ee19192cf609366 Reviewed-on: https://chromium-review.googlesource.com/954291 Reviewed-by: Luc Ferron <lucferron@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

• src/libANGLE/ContextState.cpp

• //
  // 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.
  //
  
  // Data.cpp: Container class for all GL relevant state, caps and objects
  
  #include "libANGLE/ContextState.h"
  
  #include "libANGLE/Framebuffer.h"
  #include "libANGLE/ResourceManager.h"
  
  namespace gl
  {
  
  namespace
  {
  
  template <typename T>
  using ContextStateMember = T *(ContextState::*);
  
  template <typename T>
  T *AllocateOrGetSharedResourceManager(const ContextState *shareContextState,
                                        ContextStateMember<T> member)
  {
      if (shareContextState)
      {
          T *resourceManager = (*shareContextState).*member;
          resourceManager->addRef();
          return resourceManager;
      }
      else
      {
          return new T();
      }
  }
  
  TextureManager *AllocateOrGetSharedTextureManager(const ContextState *shareContextState,
                                                    TextureManager *shareTextures,
                                                    ContextStateMember<TextureManager> member)
  {
      if (shareContextState)
      {
          TextureManager *textureManager = (*shareContextState).*member;
          ASSERT(shareTextures == nullptr || textureManager == shareTextures);
          textureManager->addRef();
          return textureManager;
      }
      else if (shareTextures)
      {
          TextureManager *textureManager = shareTextures;
          textureManager->addRef();
          return textureManager;
      }
      else
      {
          return new TextureManager();
      }
  }
  
  }  // anonymous namespace
  
  ContextState::ContextState(ContextID contextIn,
                             const ContextState *shareContextState,
                             TextureManager *shareTextures,
                             const Version &clientVersion,
                             State *stateIn,
                             const Caps &capsIn,
                             const TextureCapsMap &textureCapsIn,
                             const Extensions &extensionsIn,
                             const Limitations &limitationsIn)
      : mClientVersion(clientVersion),
        mContext(contextIn),
        mState(stateIn),
        mCaps(capsIn),
        mTextureCaps(textureCapsIn),
        mExtensions(extensionsIn),
        mLimitations(limitationsIn),
        mBuffers(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mBuffers)),
        mShaderPrograms(
            AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mShaderPrograms)),
        mTextures(AllocateOrGetSharedTextureManager(shareContextState,
                                                    shareTextures,
                                                    &ContextState::mTextures)),
        mRenderbuffers(
            AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mRenderbuffers)),
        mSamplers(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mSamplers)),
        mSyncs(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mSyncs)),
        mPaths(AllocateOrGetSharedResourceManager(shareContextState, &ContextState::mPaths)),
        mFramebuffers(new FramebufferManager()),
        mPipelines(new ProgramPipelineManager())
  {
  }
  
  ContextState::~ContextState()
  {
      // Handles are released by the Context.
  }
  
  bool ContextState::isWebGL() const
  {
      return mExtensions.webglCompatibility;
  }
  
  bool ContextState::isWebGL1() const
  {
      return (isWebGL() && mClientVersion.major == 2);
  }
  
  const TextureCaps &ContextState::getTextureCap(GLenum internalFormat) const
  {
      return mTextureCaps.get(internalFormat);
  }
  
  }  // namespace gl