C++ (Cpp) DestroyFrontBuffer示例

示例#1

void
BasicShadowCanvasLayer::Swap(const CanvasSurface& aNewFront, bool needYFlip,
                             CanvasSurface* aNewBack)
{
  AutoOpenSurface autoSurface(OPEN_READ_ONLY, aNewFront);
  // Destroy mFrontBuffer if size different
  gfxIntSize sz = autoSurface.Size();
  bool surfaceConfigChanged = sz != gfxIntSize(mBounds.width, mBounds.height);
  if (IsSurfaceDescriptorValid(mFrontSurface)) {
    AutoOpenSurface autoFront(OPEN_READ_ONLY, mFrontSurface);
    surfaceConfigChanged = surfaceConfigChanged ||
                           autoSurface.ContentType() != autoFront.ContentType();
  }
  if (surfaceConfigChanged) {
    DestroyFrontBuffer();
    mBounds.SetRect(0, 0, sz.width, sz.height);
  }

  mNeedsYFlip = needYFlip;
  // If mFrontBuffer
  if (IsSurfaceDescriptorValid(mFrontSurface)) {
    *aNewBack = mFrontSurface;
  } else {
    *aNewBack = null_t();
  }
  mFrontSurface = aNewFront;
}

示例#2

文件： ContentClient.cpp 项目： memorais/TC2_impl

void
ContentClientRemote::DestroyBuffers()
{
  if (!mTextureClient) {
    return;
  }

  MOZ_ASSERT(mTextureClient->GetAccessMode() == TextureClient::ACCESS_READ_WRITE);
  mTextureClient = nullptr;

  DestroyFrontBuffer();

  mForwarder->DestroyThebesBuffer(this);
}

示例#3

文件： ContentClient.cpp 项目： miketaylr/gecko-dev

void
ContentClientRemoteBuffer::DestroyBuffers()
{
  if (!mTextureClient) {
    return;
  }

  mOldTextures.AppendElement(mTextureClient);
  mTextureClient = nullptr;
  if (mTextureClientOnWhite) {
    mOldTextures.AppendElement(mTextureClientOnWhite);
    mTextureClientOnWhite = nullptr;
  }

  DestroyFrontBuffer();
}

示例#4

 virtual void Disconnect()
 {
   DestroyFrontBuffer();
   ShadowCanvasLayer::Disconnect();
 }