C++ PlanarYCbCrImage::GetBackendData方法代码示例

void
ImageLayerOGL::RenderLayer(int,
                           const nsIntPoint& aOffset)
{
  nsRefPtr<ImageContainer> container = GetContainer();

  if (!container)
    return;

  mOGLManager->MakeCurrent();

  AutoLockImage autoLock(container);

  Image *image = autoLock.GetImage();
  if (!image) {
    return;
  }

  NS_ASSERTION(image->GetFormat() != Image::REMOTE_IMAGE_BITMAP,
    "Remote images aren't handled yet in OGL layers!");
  NS_ASSERTION(mScaleMode == SCALE_NONE,
    "Scale modes other than none not handled yet in OGL layers!");

  if (image->GetFormat() == Image::PLANAR_YCBCR) {
    PlanarYCbCrImage *yuvImage =
      static_cast<PlanarYCbCrImage*>(image);

    if (!yuvImage->mBufferSize) {
      return;
    }

    PlanarYCbCrOGLBackendData *data =
      static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LayerManager::LAYERS_OPENGL));

    if (data && data->mTextures->GetGLContext() != gl()) {
      // If these textures were allocated by another layer manager,
      // clear them out and re-allocate below.
      data = nsnull;
      yuvImage->SetBackendData(LayerManager::LAYERS_OPENGL, nsnull);
    }

    if (!data) {
      AllocateTexturesYCbCr(yuvImage);
      data = static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LayerManager::LAYERS_OPENGL));
    }

    if (!data || data->mTextures->GetGLContext() != gl()) {
      // XXX - Can this ever happen? If so I need to fix this!
      return;
    }

    gl()->MakeCurrent();
    gl()->fActiveTexture(LOCAL_GL_TEXTURE2);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[2].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    gl()->fActiveTexture(LOCAL_GL_TEXTURE1);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[1].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[0].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);

    YCbCrTextureLayerProgram *program = mOGLManager->GetYCbCrLayerProgram();

    program->Activate();
    program->SetLayerQuadRect(nsIntRect(0, 0,
                                        yuvImage->mSize.width,
                                        yuvImage->mSize.height));
    program->SetLayerTransform(GetEffectiveTransform());
    program->SetLayerOpacity(GetEffectiveOpacity());
    program->SetRenderOffset(aOffset);
    program->SetYCbCrTextureUnits(0, 1, 2);

    mOGLManager->BindAndDrawQuadWithTextureRect(program,
                                                yuvImage->mData.GetPictureRect(),
                                                nsIntSize(yuvImage->mData.mYSize.width,
                                                          yuvImage->mData.mYSize.height));

    // We shouldn't need to do this, but do it anyway just in case
    // someone else forgets.
    gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
  } else if (image->GetFormat() == Image::CAIRO_SURFACE) {
    CairoImage *cairoImage =
      static_cast<CairoImage*>(image);

    if (!cairoImage->mSurface) {
      return;
    }

    CairoOGLBackendData *data =
      static_cast<CairoOGLBackendData*>(cairoImage->GetBackendData(LayerManager::LAYERS_OPENGL));

    if (data && data->mTexture.GetGLContext() != gl()) {
      // If this texture was allocated by another layer manager, clear
      // it out and re-allocate below.
      data = nsnull;
      cairoImage->SetBackendData(LayerManager::LAYERS_OPENGL, nsnull);
    }

    if (!data) {
//.........这里部分代码省略.........

void
ImageLayerD3D9::RenderLayer()
{
  ImageContainer *container = GetContainer();
  if (!container || mD3DManager->CompositingDisabled()) {
    return;
  }

  AutoLockImage autoLock(container);

  Image *image = autoLock.GetImage();
  if (!image) {
    return;
  }

  SetShaderTransformAndOpacity();

  gfx::IntSize size = image->GetSize();

  if (image->GetFormat() == ImageFormat::CAIRO_SURFACE ||
      image->GetFormat() == ImageFormat::REMOTE_IMAGE_BITMAP ||
      image->GetFormat() == ImageFormat::D3D9_RGB32_TEXTURE)
  {
    NS_ASSERTION(image->GetFormat() != ImageFormat::CAIRO_SURFACE ||
                 !static_cast<CairoImage*>(image)->mSourceSurface ||
                 static_cast<CairoImage*>(image)->mSourceSurface->GetFormat() != SurfaceFormat::A8,
                 "Image layer has alpha image");

    bool hasAlpha = false;
    nsRefPtr<IDirect3DTexture9> texture = GetTexture(image, hasAlpha);

    device()->SetVertexShaderConstantF(CBvLayerQuad,
                                       ShaderConstantRect(0,
                                                          0,
                                                          size.width,
                                                          size.height),
                                       1);

    if (hasAlpha) {
      mD3DManager->SetShaderMode(DeviceManagerD3D9::RGBALAYER, GetMaskLayer());
    } else {
      mD3DManager->SetShaderMode(DeviceManagerD3D9::RGBLAYER, GetMaskLayer());
    }

    if (mFilter == GraphicsFilter::FILTER_NEAREST) {
      device()->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_POINT);
      device()->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_POINT);
    }
    device()->SetTexture(0, texture);

    image = nullptr;
    autoLock.Unlock();

    device()->DrawPrimitive(D3DPT_TRIANGLESTRIP, 0, 2);
    if (mFilter == GraphicsFilter::FILTER_NEAREST) {
      device()->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
      device()->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
    }
  } else {
    PlanarYCbCrImage *yuvImage =
      static_cast<PlanarYCbCrImage*>(image);

    if (!yuvImage->IsValid()) {
      return;
    }

    if (!yuvImage->GetBackendData(mozilla::layers::LayersBackend::LAYERS_D3D9)) {
      AllocateTexturesYCbCr(yuvImage, device(), mD3DManager);
    }

    PlanarYCbCrD3D9BackendData *data =
      static_cast<PlanarYCbCrD3D9BackendData*>(yuvImage->GetBackendData(mozilla::layers::LayersBackend::LAYERS_D3D9));

    if (!data) {
      return;
    }

    nsRefPtr<IDirect3DDevice9> dev;
    data->mYTexture->GetDevice(getter_AddRefs(dev));
    if (dev != device()) {
      return;
    }

    device()->SetVertexShaderConstantF(CBvLayerQuad,
                                       ShaderConstantRect(0,
                                                          0,
                                                          size.width,
                                                          size.height),
                                       1);

    device()->SetVertexShaderConstantF(CBvTextureCoords,
      ShaderConstantRect(
        (float)yuvImage->GetData()->mPicX / yuvImage->GetData()->mYSize.width,
        (float)yuvImage->GetData()->mPicY / yuvImage->GetData()->mYSize.height,
        (float)yuvImage->GetData()->mPicSize.width / yuvImage->GetData()->mYSize.width,
        (float)yuvImage->GetData()->mPicSize.height / yuvImage->GetData()->mYSize.height
      ),
      1);

    mD3DManager->SetShaderMode(DeviceManagerD3D9::YCBCRLAYER, GetMaskLayer());
//.........这里部分代码省略.........

void
ImageLayerOGL::RenderLayer(int,
                           const nsIntPoint& aOffset)
{
  nsRefPtr<ImageContainer> container = GetContainer();

  if (!container || mOGLManager->CompositingDisabled())
    return;

  mOGLManager->MakeCurrent();

  AutoLockImage autoLock(container);

  Image *image = autoLock.GetImage();
  if (!image) {
    return;
  }

  NS_ASSERTION(image->GetFormat() != REMOTE_IMAGE_BITMAP,
    "Remote images aren't handled yet in OGL layers!");

  if (image->GetFormat() == PLANAR_YCBCR) {
    PlanarYCbCrImage *yuvImage =
      static_cast<PlanarYCbCrImage*>(image);

    if (!yuvImage->IsValid()) {
      return;
    }

    PlanarYCbCrOGLBackendData *data =
      static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LAYERS_OPENGL));

    if (data && data->mTextures->GetGLContext() != gl()) {
      // If these textures were allocated by another layer manager,
      // clear them out and re-allocate below.
      data = nullptr;
      yuvImage->SetBackendData(LAYERS_OPENGL, nullptr);
    }

    if (!data) {
      AllocateTexturesYCbCr(yuvImage);
      data = static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LAYERS_OPENGL));
    }

    if (!data || data->mTextures->GetGLContext() != gl()) {
      // XXX - Can this ever happen? If so I need to fix this!
      return;
    }

    gl()->MakeCurrent();
    gl()->fActiveTexture(LOCAL_GL_TEXTURE2);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[2].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    gl()->fActiveTexture(LOCAL_GL_TEXTURE1);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[1].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[0].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    
    ShaderProgramOGL *program = mOGLManager->GetProgram(YCbCrLayerProgramType,
                                                        GetMaskLayer());

    program->Activate();
    program->SetLayerQuadRect(nsIntRect(0, 0,
                                        yuvImage->GetSize().width,
                                        yuvImage->GetSize().height));
    program->SetLayerTransform(GetEffectiveTransform());
    program->SetLayerOpacity(GetEffectiveOpacity());
    program->SetRenderOffset(aOffset);
    program->SetYCbCrTextureUnits(0, 1, 2);
    program->LoadMask(GetMaskLayer());

    mOGLManager->BindAndDrawQuadWithTextureRect(program,
                                                yuvImage->GetData()->GetPictureRect(),
                                                nsIntSize(yuvImage->GetData()->mYSize.width,
                                                          yuvImage->GetData()->mYSize.height));

    // We shouldn't need to do this, but do it anyway just in case
    // someone else forgets.
    gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
  } else if (image->GetFormat() == CAIRO_SURFACE) {
    CairoImage *cairoImage =
      static_cast<CairoImage*>(image);

    if (!cairoImage->mSurface) {
      return;
    }

    NS_ASSERTION(cairoImage->mSurface->GetContentType() != gfxASurface::CONTENT_ALPHA,
                 "Image layer has alpha image");

    CairoOGLBackendData *data =
      static_cast<CairoOGLBackendData*>(cairoImage->GetBackendData(LAYERS_OPENGL));

    if (data && data->mTexture.GetGLContext() != gl()) {
      // If this texture was allocated by another layer manager, clear
      // it out and re-allocate below.
      data = nullptr;
      cairoImage->SetBackendData(LAYERS_OPENGL, nullptr);
//.........这里部分代码省略.........

void
ImageLayerD3D10::RenderLayer()
{
  ImageContainer *container = GetContainer();
  if (!container) {
    return;
  }

  AutoLockImage autoLock(container);

  Image *image = autoLock.GetImage();
  if (!image) {
    return;
  }

  gfxIntSize size = image->GetSize();

  SetEffectTransformAndOpacity();

  ID3D10EffectTechnique *technique;
  nsRefPtr<IDXGIKeyedMutex> keyedMutex;

  if (image->GetFormat() == ImageFormat::CAIRO_SURFACE ||
      image->GetFormat() == ImageFormat::REMOTE_IMAGE_BITMAP ||
      image->GetFormat() == ImageFormat::REMOTE_IMAGE_DXGI_TEXTURE ||
      image->GetFormat() == ImageFormat::D3D9_RGB32_TEXTURE) {
    NS_ASSERTION(image->GetFormat() != ImageFormat::CAIRO_SURFACE ||
                 !static_cast<CairoImage*>(image)->mSurface ||
                 static_cast<CairoImage*>(image)->mSurface->GetContentType() != gfxASurface::CONTENT_ALPHA,
                 "Image layer has alpha image");
    bool hasAlpha = false;

    nsRefPtr<ID3D10ShaderResourceView> srView = GetImageSRView(image, hasAlpha, getter_AddRefs(keyedMutex));
    if (!srView) {
      return;
    }

    uint8_t shaderFlags = SHADER_PREMUL;
    shaderFlags |= LoadMaskTexture();
    shaderFlags |= hasAlpha
                  ? SHADER_RGBA : SHADER_RGB;
    shaderFlags |= mFilter == gfxPattern::FILTER_NEAREST
                  ? SHADER_POINT : SHADER_LINEAR;
    technique = SelectShader(shaderFlags);


    effect()->GetVariableByName("tRGB")->AsShaderResource()->SetResource(srView);

    effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
      ShaderConstantRectD3D10(
        (float)0,
        (float)0,
        (float)size.width,
        (float)size.height)
      );
  } else if (image->GetFormat() == ImageFormat::PLANAR_YCBCR) {
    PlanarYCbCrImage *yuvImage =
      static_cast<PlanarYCbCrImage*>(image);

    if (!yuvImage->IsValid()) {
      return;
    }

    if (!yuvImage->GetBackendData(mozilla::layers::LAYERS_D3D10)) {
      AllocateTexturesYCbCr(yuvImage);
    }

    PlanarYCbCrD3D10BackendData *data =
      static_cast<PlanarYCbCrD3D10BackendData*>(yuvImage->GetBackendData(mozilla::layers::LAYERS_D3D10));

    if (!data) {
      return;
    }

    nsRefPtr<ID3D10Device> dev;
    data->mYTexture->GetDevice(getter_AddRefs(dev));
    if (dev != device()) {
      return;
    }

    // TODO: At some point we should try to deal with mFilter here, you don't
    // really want to use point filtering in the case of NEAREST, since that
    // would also use point filtering for Chroma upsampling. Where most likely
    // the user would only want point filtering for final RGB image upsampling.

    technique = SelectShader(SHADER_YCBCR | LoadMaskTexture());

    effect()->GetVariableByName("tY")->AsShaderResource()->SetResource(data->mYView);
    effect()->GetVariableByName("tCb")->AsShaderResource()->SetResource(data->mCbView);
    effect()->GetVariableByName("tCr")->AsShaderResource()->SetResource(data->mCrView);

    effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
      ShaderConstantRectD3D10(
        (float)0,
        (float)0,
        (float)size.width,
        (float)size.height)
      );

    effect()->GetVariableByName("vTextureCoords")->AsVector()->SetFloatVector(
//.........这里部分代码省略.........

void
ImageLayerOGL::RenderLayer(int,
                           const nsIntPoint& aOffset)
{
  nsRefPtr<ImageContainer> container = GetContainer();

  if (!container || mOGLManager->CompositingDisabled())
    return;

  mOGLManager->MakeCurrent();

  AutoLockImage autoLock(container);

  Image *image = autoLock.GetImage();
  if (!image) {
    return;
  }

  NS_ASSERTION(image->GetFormat() != REMOTE_IMAGE_BITMAP,
    "Remote images aren't handled yet in OGL layers!");

  if (image->GetFormat() == PLANAR_YCBCR) {
    PlanarYCbCrImage *yuvImage =
      static_cast<PlanarYCbCrImage*>(image);

    if (!yuvImage->IsValid()) {
      return;
    }

    PlanarYCbCrOGLBackendData *data =
      static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LAYERS_OPENGL));

    if (data && data->mTextures->GetGLContext() != gl()) {
      // If these textures were allocated by another layer manager,
      // clear them out and re-allocate below.
      data = nullptr;
      yuvImage->SetBackendData(LAYERS_OPENGL, nullptr);
    }

    if (!data) {
      AllocateTexturesYCbCr(yuvImage);
      data = static_cast<PlanarYCbCrOGLBackendData*>(yuvImage->GetBackendData(LAYERS_OPENGL));
    }

    if (!data || data->mTextures->GetGLContext() != gl()) {
      // XXX - Can this ever happen? If so I need to fix this!
      return;
    }

    gl()->MakeCurrent();
    gl()->fActiveTexture(LOCAL_GL_TEXTURE2);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[2].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    gl()->fActiveTexture(LOCAL_GL_TEXTURE1);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[1].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
    gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, data->mTextures[0].GetTextureID());
    gl()->ApplyFilterToBoundTexture(mFilter);
    
    ShaderProgramOGL *program = mOGLManager->GetProgram(YCbCrLayerProgramType,
                                                        GetMaskLayer());

    program->Activate();
    program->SetLayerQuadRect(nsIntRect(0, 0,
                                        yuvImage->GetSize().width,
                                        yuvImage->GetSize().height));
    program->SetLayerTransform(GetEffectiveTransform());
    program->SetLayerOpacity(GetEffectiveOpacity());
    program->SetRenderOffset(aOffset);
    program->SetYCbCrTextureUnits(0, 1, 2);
    program->LoadMask(GetMaskLayer());

    mOGLManager->BindAndDrawQuadWithTextureRect(program,
                                                yuvImage->GetData()->GetPictureRect(),
                                                nsIntSize(yuvImage->GetData()->mYSize.width,
                                                          yuvImage->GetData()->mYSize.height));

    // We shouldn't need to do this, but do it anyway just in case
    // someone else forgets.
    gl()->fActiveTexture(LOCAL_GL_TEXTURE0);
  } else if (image->GetFormat() == CAIRO_SURFACE) {
    CairoImage *cairoImage =
      static_cast<CairoImage*>(image);

    if (!cairoImage->mSurface) {
      return;
    }

    NS_ASSERTION(cairoImage->mSurface->GetContentType() != gfxASurface::CONTENT_ALPHA,
                 "Image layer has alpha image");

    CairoOGLBackendData *data =
      static_cast<CairoOGLBackendData*>(cairoImage->GetBackendData(LAYERS_OPENGL));

    if (data && data->mTexture.GetGLContext() != gl()) {
      // If this texture was allocated by another layer manager, clear
      // it out and re-allocate below.
      data = nullptr;
      cairoImage->SetBackendData(LAYERS_OPENGL, nullptr);
//.........这里部分代码省略.........

void
ImageLayerD3D10::RenderLayer()
{
  ImageContainer *container = GetContainer();
  if (!container) {
    return;
  }

  AutoLockImage autoLock(container);

  Image *image = autoLock.GetImage();
  if (!image) {
    return;
  }

  gfxIntSize size = mScaleMode == SCALE_NONE ? image->GetSize() : mScaleToSize;

  SetEffectTransformAndOpacity();

  ID3D10EffectTechnique *technique;

  if (image->GetFormat() == Image::CAIRO_SURFACE || image->GetFormat() == Image::REMOTE_IMAGE_BITMAP)
  {
    bool hasAlpha = false;

    nsRefPtr<ID3D10ShaderResourceView> srView = GetImageSRView(image, hasAlpha);
    if (!srView) {
      return;
    }
    
    PRUint8 shaderFlags = SHADER_PREMUL;
    shaderFlags |= LoadMaskTexture();
    shaderFlags |= hasAlpha
                  ? SHADER_RGBA : SHADER_RGB;
    shaderFlags |= mFilter == gfxPattern::FILTER_NEAREST
                  ? SHADER_POINT : SHADER_LINEAR;
    technique = SelectShader(shaderFlags);


    effect()->GetVariableByName("tRGB")->AsShaderResource()->SetResource(srView);

    effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
      ShaderConstantRectD3D10(
        (float)0,
        (float)0,
        (float)size.width,
        (float)size.height)
      );
  } else if (image->GetFormat() == Image::PLANAR_YCBCR) {
    PlanarYCbCrImage *yuvImage =
      static_cast<PlanarYCbCrImage*>(image);

    if (!yuvImage->mBufferSize) {
      return;
    }

    if (!yuvImage->GetBackendData(LayerManager::LAYERS_D3D10)) {
      AllocateTexturesYCbCr(yuvImage);
    }

    PlanarYCbCrD3D10BackendData *data =
      static_cast<PlanarYCbCrD3D10BackendData*>(yuvImage->GetBackendData(LayerManager::LAYERS_D3D10));

    if (!data) {
      return;
    }

    nsRefPtr<ID3D10Device> dev;
    data->mYTexture->GetDevice(getter_AddRefs(dev));
    if (dev != device()) {
      return;
    }

    // TODO: At some point we should try to deal with mFilter here, you don't
    // really want to use point filtering in the case of NEAREST, since that
    // would also use point filtering for Chroma upsampling. Where most likely
    // the user would only want point filtering for final RGB image upsampling.

    technique = SelectShader(SHADER_YCBCR | LoadMaskTexture());

    effect()->GetVariableByName("tY")->AsShaderResource()->SetResource(data->mYView);
    effect()->GetVariableByName("tCb")->AsShaderResource()->SetResource(data->mCbView);
    effect()->GetVariableByName("tCr")->AsShaderResource()->SetResource(data->mCrView);

    /*
     * Send 3d control data and metadata to NV3DVUtils
     */
    if (GetNv3DVUtils()) {
      Nv_Stereo_Mode mode;
      switch (yuvImage->mData.mStereoMode) {
      case STEREO_MODE_LEFT_RIGHT:
        mode = NV_STEREO_MODE_LEFT_RIGHT;
        break;
      case STEREO_MODE_RIGHT_LEFT:
        mode = NV_STEREO_MODE_RIGHT_LEFT;
        break;
      case STEREO_MODE_BOTTOM_TOP:
        mode = NV_STEREO_MODE_BOTTOM_TOP;
        break;
      case STEREO_MODE_TOP_BOTTOM:
//.........这里部分代码省略.........

void
ImageLayerD3D10::RenderLayer()
{
  ImageContainer *container = GetContainer();
  if (!container) {
    return;
  }

  AutoLockImage autoLock(container);

  Image *image = autoLock.GetImage();
  if (!image) {
    return;
  }

  gfxIntSize size = mScaleMode == SCALE_NONE ? image->GetSize() : mScaleToSize;

  SetEffectTransformAndOpacity();

  ID3D10EffectTechnique *technique;

  if (image->GetFormat() == Image::CAIRO_SURFACE || image->GetFormat() == Image::REMOTE_IMAGE_BITMAP)
  {
    bool hasAlpha = false;

    if (image->GetFormat() == Image::REMOTE_IMAGE_BITMAP) {
      RemoteBitmapImage *remoteImage =
        static_cast<RemoteBitmapImage*>(image);
      
      if (!image->GetBackendData(LayerManager::LAYERS_D3D10)) {
        nsAutoPtr<TextureD3D10BackendData> dat = new TextureD3D10BackendData();
        dat->mTexture = DataToTexture(device(), remoteImage->mData, remoteImage->mStride, remoteImage->mSize);

        if (dat->mTexture) {
          device()->CreateShaderResourceView(dat->mTexture, NULL, getter_AddRefs(dat->mSRView));
          image->SetBackendData(LayerManager::LAYERS_D3D10, dat.forget());
        }
      }

      hasAlpha = remoteImage->mFormat == RemoteImageData::BGRA32;
    } else {
      CairoImage *cairoImage =
        static_cast<CairoImage*>(image);

      if (!cairoImage->mSurface) {
        return;
      }

      if (!image->GetBackendData(LayerManager::LAYERS_D3D10)) {
        nsAutoPtr<TextureD3D10BackendData> dat = new TextureD3D10BackendData();
        dat->mTexture = SurfaceToTexture(device(), cairoImage->mSurface, cairoImage->mSize);

        if (dat->mTexture) {
          device()->CreateShaderResourceView(dat->mTexture, NULL, getter_AddRefs(dat->mSRView));
          image->SetBackendData(LayerManager::LAYERS_D3D10, dat.forget());
        }
      }

      hasAlpha = cairoImage->mSurface->GetContentType() == gfxASurface::CONTENT_COLOR_ALPHA;
    }

    TextureD3D10BackendData *data =
      static_cast<TextureD3D10BackendData*>(image->GetBackendData(LayerManager::LAYERS_D3D10));

    if (!data) {
      return;
    }

    nsRefPtr<ID3D10Device> dev;
    data->mTexture->GetDevice(getter_AddRefs(dev));
    if (dev != device()) {
      return;
    }
    
    if (hasAlpha) {
      if (mFilter == gfxPattern::FILTER_NEAREST) {
        technique = effect()->GetTechniqueByName("RenderRGBALayerPremulPoint");
      } else {
        technique = effect()->GetTechniqueByName("RenderRGBALayerPremul");
      }
    } else {
      if (mFilter == gfxPattern::FILTER_NEAREST) {
        technique = effect()->GetTechniqueByName("RenderRGBLayerPremulPoint");
      } else {
        technique = effect()->GetTechniqueByName("RenderRGBLayerPremul");
      }
    }

    effect()->GetVariableByName("tRGB")->AsShaderResource()->SetResource(data->mSRView);

    effect()->GetVariableByName("vLayerQuad")->AsVector()->SetFloatVector(
      ShaderConstantRectD3D10(
        (float)0,
        (float)0,
        (float)size.width,
        (float)size.height)
      );
  } else if (image->GetFormat() == Image::PLANAR_YCBCR) {
    PlanarYCbCrImage *yuvImage =
      static_cast<PlanarYCbCrImage*>(image);
//.........这里部分代码省略.........