void
ImageLayerComposite::RenderLayer(const nsIntRect& aClipRect)
{
  if (!mImageHost || !mImageHost->IsAttached()) {
    return;
  }

#ifdef MOZ_DUMP_PAINTING
  if (gfxUtils::sDumpPainting) {
    nsRefPtr<gfxImageSurface> surf = mImageHost->GetAsSurface();
    WriteSnapshotToDumpFile(this, surf);
  }
#endif

  mCompositor->MakeCurrent();

  EffectChain effectChain;
  LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain);

  gfx::Matrix4x4 transform;
  ToMatrix4x4(GetEffectiveTransform(), transform);
  gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);
  mImageHost->SetCompositor(mCompositor);
  mImageHost->Composite(effectChain,
                        GetEffectiveOpacity(),
                        transform,
                        gfx::ToFilter(mFilter),
                        clipRect);
}
void
ColorLayerComposite::RenderLayer(const nsIntPoint& aOffset,
                                 const nsIntRect& aClipRect)
{
  EffectChain effects;
  gfxRGBA color(GetColor());
  effects.mPrimaryEffect = new EffectSolidColor(gfx::Color(color.r,
                                                           color.g,
                                                           color.b,
                                                           color.a));
  nsIntRect boundRect = GetBounds();

  LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(GetMaskLayer(),
                                                          effects);

  gfx::Rect rect(boundRect.x, boundRect.y,
                 boundRect.width, boundRect.height);
  gfx::Rect clipRect(aClipRect.x, aClipRect.y,
                     aClipRect.width, aClipRect.height);

  float opacity = GetEffectiveOpacity();

  gfx::Matrix4x4 transform;
  ToMatrix4x4(GetEffectiveTransform(), transform);

  mCompositor->DrawQuad(rect, clipRect, effects, opacity,
                        transform, gfx::Point(aOffset.x, aOffset.y));
  mCompositor->DrawDiagnostics(DIAGNOSTIC_COLOR,
                               rect, clipRect,
                               transform, gfx::Point(aOffset.x, aOffset.y));
}
void
ImageLayerComposite::RenderLayer(const nsIntRect& aClipRect)
{
  if (!mImageHost || !mImageHost->IsAttached()) {
    return;
  }

#ifdef MOZ_DUMP_PAINTING
  if (gfxUtils::sDumpPainting) {
    RefPtr<gfx::DataSourceSurface> dSurf = mImageHost->GetAsSurface();
    gfxPlatform *platform = gfxPlatform::GetPlatform();
    RefPtr<gfx::DrawTarget> dt = platform->CreateDrawTargetForData(dSurf->GetData(),
                                                                   dSurf->GetSize(),
                                                                   dSurf->Stride(),
                                                                   dSurf->GetFormat());
    nsRefPtr<gfxASurface> surf = platform->GetThebesSurfaceForDrawTarget(dt);
    WriteSnapshotToDumpFile(this, surf);
  }
#endif

  mCompositor->MakeCurrent();

  EffectChain effectChain;
  LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain);

  gfx::Matrix4x4 transform;
  ToMatrix4x4(GetEffectiveTransform(), transform);
  gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);
  mImageHost->SetCompositor(mCompositor);
  mImageHost->Composite(effectChain,
                        GetEffectiveOpacity(),
                        transform,
                        gfx::ToFilter(mFilter),
                        clipRect);
}
void
ThebesLayerComposite::RenderLayer(const nsIntPoint& aOffset,
                                  const nsIntRect& aClipRect)
{
  if (!mBuffer || !mBuffer->IsAttached()) {
    return;
  }

  MOZ_ASSERT(mBuffer->GetCompositor() == mCompositeManager->GetCompositor() &&
             mBuffer->GetLayer() == this,
             "buffer is corrupted");

  gfx::Matrix4x4 transform;
  ToMatrix4x4(GetEffectiveTransform(), transform);
  gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);

#ifdef MOZ_DUMP_PAINTING
  if (gfxUtils::sDumpPainting) {
    nsRefPtr<gfxImageSurface> surf = mBuffer->GetAsSurface();
    WriteSnapshotToDumpFile(this, surf);
  }
#endif

  EffectChain effectChain;
  LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain);

  nsIntRegion visibleRegion = GetEffectiveVisibleRegion();

  TiledLayerProperties tiledLayerProps;
  if (mRequiresTiledProperties) {
    // calculating these things can be a little expensive, so don't
    // do them if we don't have to
    tiledLayerProps.mVisibleRegion = visibleRegion;
    tiledLayerProps.mDisplayPort = GetDisplayPort();
    tiledLayerProps.mEffectiveResolution = GetEffectiveResolution();
    tiledLayerProps.mCompositionBounds = GetCompositionBounds();
    tiledLayerProps.mRetainTiles = !mIsFixedPosition;
    tiledLayerProps.mValidRegion = mValidRegion;
  }

  mBuffer->SetPaintWillResample(MayResample());

  mBuffer->Composite(effectChain,
                     GetEffectiveOpacity(),
                     transform,
                     gfx::Point(aOffset.x, aOffset.y),
                     gfx::FILTER_LINEAR,
                     clipRect,
                     &visibleRegion,
                     mRequiresTiledProperties ? &tiledLayerProps
                                              : nullptr);


  if (mRequiresTiledProperties) {
    mValidRegion = tiledLayerProps.mValidRegion;
  }

  mCompositeManager->GetCompositor()->MakeCurrent();
}
示例#5
0
void
ThebesLayerComposite::RenderLayer(const nsIntRect& aClipRect)
{
  if (!mBuffer || !mBuffer->IsAttached()) {
    return;
  }
  PROFILER_LABEL("ThebesLayerComposite", "RenderLayer",
    js::ProfileEntry::Category::GRAPHICS);

  MOZ_ASSERT(mBuffer->GetCompositor() == mCompositeManager->GetCompositor() &&
             mBuffer->GetLayer() == this,
             "buffer is corrupted");

  gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);

#ifdef MOZ_DUMP_PAINTING
  if (gfxUtils::sDumpPainting) {
    RefPtr<gfx::DataSourceSurface> surf = mBuffer->GetAsSurface();
    if (surf) {
      WriteSnapshotToDumpFile(this, surf);
    }
  }
#endif

  EffectChain effectChain(this);
  LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(mMaskLayer, effectChain);
  AddBlendModeEffect(effectChain);

  const nsIntRegion& visibleRegion = GetEffectiveVisibleRegion();

  TiledLayerProperties tiledLayerProps;
  if (mRequiresTiledProperties) {
    tiledLayerProps.mVisibleRegion = visibleRegion;
    tiledLayerProps.mEffectiveResolution = GetEffectiveResolution();
    tiledLayerProps.mValidRegion = mValidRegion;
  }

  mBuffer->SetPaintWillResample(MayResample());

  mBuffer->Composite(effectChain,
                     GetEffectiveOpacity(),
                     GetEffectiveTransform(),
                     gfx::Filter::LINEAR,
                     clipRect,
                     &visibleRegion,
                     mRequiresTiledProperties ? &tiledLayerProps
                                              : nullptr);
  mBuffer->BumpFlashCounter();

  if (mRequiresTiledProperties) {
    mValidRegion = tiledLayerProps.mValidRegion;
  }

  mCompositeManager->GetCompositor()->MakeCurrent();
}
template<class ContainerT> void
ContainerRender(ContainerT* aContainer,
                LayerManagerComposite* aManager,
                const nsIntRect& aClipRect)
{
  /**
   * Setup our temporary surface for rendering the contents of this container.
   */
  RefPtr<CompositingRenderTarget> surface;

  Compositor* compositor = aManager->GetCompositor();

  RefPtr<CompositingRenderTarget> previousTarget = compositor->GetCurrentRenderTarget();

  nsIntRect visibleRect = aContainer->GetEffectiveVisibleRegion().GetBounds();

  aContainer->mSupportsComponentAlphaChildren = false;

  float opacity = aContainer->GetEffectiveOpacity();

  bool needsSurface = aContainer->UseIntermediateSurface();
  if (needsSurface) {
    SurfaceInitMode mode = INIT_MODE_CLEAR;
    bool surfaceCopyNeeded = false;
    gfx::IntRect surfaceRect = gfx::IntRect(visibleRect.x, visibleRect.y,
                                            visibleRect.width, visibleRect.height);
    gfx::IntPoint sourcePoint = gfx::IntPoint(visibleRect.x, visibleRect.y);
    // we're about to create a framebuffer backed by textures to use as an intermediate
    // surface. What to do if its size (as given by framebufferRect) would exceed the
    // maximum texture size supported by the GL? The present code chooses the compromise
    // of just clamping the framebuffer's size to the max supported size.
    // This gives us a lower resolution rendering of the intermediate surface (children layers).
    // See bug 827170 for a discussion.
    int32_t maxTextureSize = compositor->GetMaxTextureSize();
    surfaceRect.width = std::min(maxTextureSize, surfaceRect.width);
    surfaceRect.height = std::min(maxTextureSize, surfaceRect.height);
    if (aContainer->GetEffectiveVisibleRegion().GetNumRects() == 1 &&
        (aContainer->GetContentFlags() & Layer::CONTENT_OPAQUE))
    {
      // don't need a background, we're going to paint all opaque stuff
      aContainer->mSupportsComponentAlphaChildren = true;
      mode = INIT_MODE_NONE;
    } else {
      const gfx3DMatrix& transform3D = aContainer->GetEffectiveTransform();
      gfxMatrix transform;
      // If we have an opaque ancestor layer, then we can be sure that
      // all the pixels we draw into are either opaque already or will be
      // covered by something opaque. Otherwise copying up the background is
      // not safe.
      if (HasOpaqueAncestorLayer(aContainer) &&
          transform3D.Is2D(&transform) && !transform.HasNonIntegerTranslation()) {
        surfaceCopyNeeded = gfxPlatform::ComponentAlphaEnabled();
        sourcePoint.x += transform.x0;
        sourcePoint.y += transform.y0;
        aContainer->mSupportsComponentAlphaChildren
          = gfxPlatform::ComponentAlphaEnabled();
      }
    }

    sourcePoint -= compositor->GetCurrentRenderTarget()->GetOrigin();
    if (surfaceCopyNeeded) {
      surface = compositor->CreateRenderTargetFromSource(surfaceRect, previousTarget, sourcePoint);
    } else {
      surface = compositor->CreateRenderTarget(surfaceRect, mode);
    }

    if (!surface) {
      return;
    }

    compositor->SetRenderTarget(surface);
  } else {
    surface = previousTarget;
    aContainer->mSupportsComponentAlphaChildren = (aContainer->GetContentFlags() & Layer::CONTENT_OPAQUE) ||
      (aContainer->GetParent() && aContainer->GetParent()->SupportsComponentAlphaChildren());
  }

  nsAutoTArray<Layer*, 12> children;
  aContainer->SortChildrenBy3DZOrder(children);

  /**
   * Render this container's contents.
   */
  for (uint32_t i = 0; i < children.Length(); i++) {
    LayerComposite* layerToRender = static_cast<LayerComposite*>(children.ElementAt(i)->ImplData());

    if (layerToRender->GetLayer()->GetEffectiveVisibleRegion().IsEmpty() &&
        !layerToRender->GetLayer()->AsContainerLayer()) {
      continue;
    }

    if (i + 1 < children.Length() &&
        layerToRender->GetLayer()->GetEffectiveTransform().IsIdentity()) {
      LayerComposite* nextLayer = static_cast<LayerComposite*>(children.ElementAt(i + 1)->ImplData());
      nsIntRect nextLayerOpaqueRect;
      if (nextLayer && nextLayer->GetLayer()) {
        nextLayerOpaqueRect = GetOpaqueRect(nextLayer->GetLayer());
      }
      if (!nextLayerOpaqueRect.IsEmpty()) {
        nsIntRegion visibleRegion;
        visibleRegion.Sub(layerToRender->GetShadowVisibleRegion(), nextLayerOpaqueRect);
        layerToRender->SetShadowVisibleRegion(visibleRegion);
        if (visibleRegion.IsEmpty()) {
          continue;
        }
      }
    }

    nsIntRect clipRect = layerToRender->GetLayer()->
        CalculateScissorRect(aClipRect, &aManager->GetWorldTransform());
    if (clipRect.IsEmpty()) {
      continue;
    }

    if (layerToRender->HasLayerBeenComposited()) {
      // Composer2D will compose this layer so skip GPU composition
      // this time & reset composition flag for next composition phase
      layerToRender->SetLayerComposited(false);
    } else {
      layerToRender->RenderLayer(clipRect);
    }
    // invariant: our GL context should be current here, I don't think we can
    // assert it though
  }

  if (needsSurface) {
    // Unbind the current surface and rebind the previous one.
#ifdef MOZ_DUMP_PAINTING
    if (gfxUtils::sDumpPainting) {
      nsRefPtr<gfxImageSurface> surf = surface->Dump(aManager->GetCompositor());
      WriteSnapshotToDumpFile(aContainer, surf);
    }
#endif

    compositor->SetRenderTarget(previousTarget);
    EffectChain effectChain;
    LayerManagerComposite::AutoAddMaskEffect autoMaskEffect(aContainer->GetMaskLayer(),
                                                            effectChain,
                                                            !aContainer->GetTransform().CanDraw2D());

    effectChain.mPrimaryEffect = new EffectRenderTarget(surface);

    gfx::Matrix4x4 transform;
    ToMatrix4x4(aContainer->GetEffectiveTransform(), transform);

    gfx::Rect rect(visibleRect.x, visibleRect.y, visibleRect.width, visibleRect.height);
    gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);
    aManager->GetCompositor()->DrawQuad(rect, clipRect, effectChain, opacity,
                                        transform);
  }

  if (aContainer->GetFrameMetrics().IsScrollable()) {
    gfx::Matrix4x4 transform;
    ToMatrix4x4(aContainer->GetEffectiveTransform(), transform);

    const FrameMetrics& frame = aContainer->GetFrameMetrics();
    LayerRect layerBounds = ScreenRect(frame.mCompositionBounds) * ScreenToLayerScale(1.0);
    gfx::Rect rect(layerBounds.x, layerBounds.y, layerBounds.width, layerBounds.height);
    gfx::Rect clipRect(aClipRect.x, aClipRect.y, aClipRect.width, aClipRect.height);
    aManager->GetCompositor()->DrawDiagnostics(DIAGNOSTIC_CONTAINER,
                                               rect, clipRect,
                                               transform);
  }
}