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Diffstat (limited to 'gfx/layers/composite/ContainerLayerComposite.cpp')
| -rwxr-xr-x | gfx/layers/composite/ContainerLayerComposite.cpp | 698 |
1 files changed, 698 insertions, 0 deletions
diff --git a/gfx/layers/composite/ContainerLayerComposite.cpp b/gfx/layers/composite/ContainerLayerComposite.cpp new file mode 100755 index 000000000..35070cad6 --- /dev/null +++ b/gfx/layers/composite/ContainerLayerComposite.cpp @@ -0,0 +1,698 @@ +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "ContainerLayerComposite.h" +#include <algorithm> // for min +#include "apz/src/AsyncPanZoomController.h" // for AsyncPanZoomController +#include "FrameMetrics.h" // for FrameMetrics +#include "Units.h" // for LayerRect, LayerPixel, etc +#include "CompositableHost.h" // for CompositableHost +#include "gfxEnv.h" // for gfxEnv +#include "gfxPrefs.h" // for gfxPrefs +#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc +#include "mozilla/RefPtr.h" // for RefPtr +#include "mozilla/UniquePtr.h" // for UniquePtr +#include "mozilla/gfx/BaseRect.h" // for BaseRect +#include "mozilla/gfx/Matrix.h" // for Matrix4x4 +#include "mozilla/gfx/Point.h" // for Point, IntPoint +#include "mozilla/gfx/Rect.h" // for IntRect, Rect +#include "mozilla/layers/Compositor.h" // for Compositor, etc +#include "mozilla/layers/CompositorTypes.h" // for DiagnosticFlags::CONTAINER +#include "mozilla/layers/Effects.h" // for Effect, EffectChain, etc +#include "mozilla/layers/TextureHost.h" // for CompositingRenderTarget +#include "mozilla/layers/AsyncCompositionManager.h" // for ViewTransform +#include "mozilla/layers/LayerMetricsWrapper.h" // for LayerMetricsWrapper +#include "mozilla/mozalloc.h" // for operator delete, etc +#include "mozilla/RefPtr.h" // for nsRefPtr +#include "nsDebug.h" // for NS_ASSERTION +#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc +#include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE +#include "nsRegion.h" // for nsIntRegion +#include "nsTArray.h" // for AutoTArray +#include <stack> +#include "TextRenderer.h" // for TextRenderer +#include <vector> +#include "GeckoProfiler.h" // for GeckoProfiler +#ifdef MOZ_ENABLE_PROFILER_SPS +#include "ProfilerMarkers.h" // for ProfilerMarkers +#endif + +#define CULLING_LOG(...) +// #define CULLING_LOG(...) printf_stderr("CULLING: " __VA_ARGS__) + +#define DUMP(...) do { if (gfxEnv::DumpDebug()) { printf_stderr(__VA_ARGS__); } } while(0) +#define XYWH(k) (k).x, (k).y, (k).width, (k).height +#define XY(k) (k).x, (k).y +#define WH(k) (k).width, (k).height + +namespace mozilla { +namespace layers { + +using namespace gfx; + +static void DrawLayerInfo(const RenderTargetIntRect& aClipRect, + LayerManagerComposite* aManager, + Layer* aLayer) +{ + + if (aLayer->GetType() == Layer::LayerType::TYPE_CONTAINER) { + // XXX - should figure out a way to render this, but for now this + // is hard to do, since it will often get superimposed over the first + // child of the layer, which is bad. + return; + } + + std::stringstream ss; + aLayer->PrintInfo(ss, ""); + + LayerIntRegion visibleRegion = aLayer->GetVisibleRegion(); + + uint32_t maxWidth = std::min<uint32_t>(visibleRegion.GetBounds().width, 500); + + IntPoint topLeft = visibleRegion.ToUnknownRegion().GetBounds().TopLeft(); + aManager->GetTextRenderer()->RenderText(ss.str().c_str(), topLeft, + aLayer->GetEffectiveTransform(), 16, + maxWidth); +} + +template<class ContainerT> +static gfx::IntRect ContainerVisibleRect(ContainerT* aContainer) +{ + gfx::IntRect surfaceRect = aContainer->GetLocalVisibleRegion().ToUnknownRegion().GetBounds(); + return surfaceRect; +} + +static void PrintUniformityInfo(Layer* aLayer) +{ +#ifdef MOZ_ENABLE_PROFILER_SPS + if (!profiler_is_active()) { + return; + } + + // Don't want to print a log for smaller layers + if (aLayer->GetLocalVisibleRegion().GetBounds().width < 300 || + aLayer->GetLocalVisibleRegion().GetBounds().height < 300) { + return; + } + + Matrix4x4 transform = aLayer->AsLayerComposite()->GetShadowBaseTransform(); + if (!transform.Is2D()) { + return; + } + + Point translation = transform.As2D().GetTranslation(); + LayerTranslationPayload* payload = new LayerTranslationPayload(aLayer, translation); + PROFILER_MARKER_PAYLOAD("LayerTranslation", payload); +#endif +} + +/* all of the per-layer prepared data we need to maintain */ +struct PreparedLayer +{ + PreparedLayer(Layer *aLayer, RenderTargetIntRect aClipRect) : + mLayer(aLayer), mClipRect(aClipRect) {} + RefPtr<Layer> mLayer; + RenderTargetIntRect mClipRect; +}; + +/* all of the prepared data that we need in RenderLayer() */ +struct PreparedData +{ + RefPtr<CompositingRenderTarget> mTmpTarget; + AutoTArray<PreparedLayer, 12> mLayers; + bool mNeedsSurfaceCopy; +}; + +// ContainerPrepare is shared between RefLayer and ContainerLayer +template<class ContainerT> void +ContainerPrepare(ContainerT* aContainer, + LayerManagerComposite* aManager, + const RenderTargetIntRect& aClipRect) +{ + aContainer->mPrepared = MakeUnique<PreparedData>(); + aContainer->mPrepared->mNeedsSurfaceCopy = false; + + /** + * Determine which layers to draw. + */ + AutoTArray<Layer*, 12> children; + aContainer->SortChildrenBy3DZOrder(children); + + for (uint32_t i = 0; i < children.Length(); i++) { + LayerComposite* layerToRender = static_cast<LayerComposite*>(children.ElementAt(i)->ImplData()); + + RenderTargetIntRect clipRect = layerToRender->GetLayer()-> + CalculateScissorRect(aClipRect); + + if (layerToRender->GetLayer()->IsBackfaceHidden()) { + continue; + } + + // We don't want to skip container layers because otherwise their mPrepared + // may be null which is not allowed. + if (!layerToRender->GetLayer()->AsContainerLayer()) { + if (!layerToRender->GetLayer()->IsVisible() && + !layerToRender->NeedToDrawCheckerboarding(nullptr)) { + CULLING_LOG("Sublayer %p has no effective visible region\n", layerToRender->GetLayer()); + continue; + } + + if (clipRect.IsEmpty()) { + CULLING_LOG("Sublayer %p has an empty world clip rect\n", layerToRender->GetLayer()); + continue; + } + } + + CULLING_LOG("Preparing sublayer %p\n", layerToRender->GetLayer()); + + layerToRender->Prepare(clipRect); + aContainer->mPrepared->mLayers.AppendElement(PreparedLayer(layerToRender->GetLayer(), + clipRect)); + } + + CULLING_LOG("Preparing container layer %p\n", aContainer->GetLayer()); + + /** + * Setup our temporary surface for rendering the contents of this container. + */ + + gfx::IntRect surfaceRect = ContainerVisibleRect(aContainer); + if (surfaceRect.IsEmpty()) { + return; + } + + bool surfaceCopyNeeded; + // DefaultComputeSupportsComponentAlphaChildren can mutate aContainer so call it unconditionally + aContainer->DefaultComputeSupportsComponentAlphaChildren(&surfaceCopyNeeded); + if (aContainer->UseIntermediateSurface()) { + if (!surfaceCopyNeeded) { + RefPtr<CompositingRenderTarget> surface = nullptr; + + RefPtr<CompositingRenderTarget>& lastSurf = aContainer->mLastIntermediateSurface; + if (lastSurf && !aContainer->mChildrenChanged && lastSurf->GetRect().IsEqualEdges(surfaceRect)) { + surface = lastSurf; + } + + if (!surface) { + // If we don't need a copy we can render to the intermediate now to avoid + // unecessary render target switching. This brings a big perf boost on mobile gpus. + surface = CreateOrRecycleTarget(aContainer, aManager); + + MOZ_PERFORMANCE_WARNING("gfx", "[%p] Container layer requires intermediate surface rendering\n", aContainer); + RenderIntermediate(aContainer, aManager, aClipRect.ToUnknownRect(), surface); + aContainer->SetChildrenChanged(false); + } + + aContainer->mPrepared->mTmpTarget = surface; + } else { + MOZ_PERFORMANCE_WARNING("gfx", "[%p] Container layer requires intermediate surface copy\n", aContainer); + aContainer->mPrepared->mNeedsSurfaceCopy = true; + aContainer->mLastIntermediateSurface = nullptr; + } + } else { + aContainer->mLastIntermediateSurface = nullptr; + } +} + +template<class ContainerT> void +RenderMinimap(ContainerT* aContainer, LayerManagerComposite* aManager, + const RenderTargetIntRect& aClipRect, Layer* aLayer) +{ + Compositor* compositor = aManager->GetCompositor(); + + if (aLayer->GetScrollMetadataCount() < 1) { + return; + } + + AsyncPanZoomController* controller = aLayer->GetAsyncPanZoomController(0); + if (!controller) { + return; + } + + ParentLayerPoint scrollOffset = controller->GetCurrentAsyncScrollOffset(AsyncPanZoomController::RESPECT_FORCE_DISABLE); + + // Options + const int verticalPadding = 10; + const int horizontalPadding = 5; + gfx::Color backgroundColor(0.3f, 0.3f, 0.3f, 0.3f); + gfx::Color tileActiveColor(1, 1, 1, 0.4f); + gfx::Color tileBorderColor(0, 0, 0, 0.1f); + gfx::Color pageBorderColor(0, 0, 0); + gfx::Color criticalDisplayPortColor(1.f, 1.f, 0); + gfx::Color displayPortColor(0, 1.f, 0); + gfx::Color viewPortColor(0, 0, 1.f, 0.3f); + gfx::Color visibilityColor(1.f, 0, 0); + + // Rects + const FrameMetrics& fm = aLayer->GetFrameMetrics(0); + ParentLayerRect compositionBounds = fm.GetCompositionBounds(); + LayerRect scrollRect = fm.GetScrollableRect() * fm.LayersPixelsPerCSSPixel(); + LayerRect viewRect = ParentLayerRect(scrollOffset, compositionBounds.Size()) / LayerToParentLayerScale(1); + LayerRect dp = (fm.GetDisplayPort() + fm.GetScrollOffset()) * fm.LayersPixelsPerCSSPixel(); + Maybe<LayerRect> cdp; + if (!fm.GetCriticalDisplayPort().IsEmpty()) { + cdp = Some((fm.GetCriticalDisplayPort() + fm.GetScrollOffset()) * fm.LayersPixelsPerCSSPixel()); + } + + // Don't render trivial minimap. They can show up from textboxes and other tiny frames. + if (viewRect.width < 64 && viewRect.height < 64) { + return; + } + + // Compute a scale with an appropriate aspect ratio + // We allocate up to 100px of width and the height of this layer. + float scaleFactor; + float scaleFactorX; + float scaleFactorY; + Rect dest = Rect(aClipRect.ToUnknownRect()); + if (aLayer->GetLocalClipRect()) { + dest = Rect(aLayer->GetLocalClipRect().value().ToUnknownRect()); + } else { + dest = aContainer->GetEffectiveTransform().Inverse().TransformBounds(dest); + } + dest = dest.Intersect(compositionBounds.ToUnknownRect()); + scaleFactorX = std::min(100.f, dest.width - (2 * horizontalPadding)) / scrollRect.width; + scaleFactorY = (dest.height - (2 * verticalPadding)) / scrollRect.height; + scaleFactor = std::min(scaleFactorX, scaleFactorY); + if (scaleFactor <= 0) { + return; + } + + Matrix4x4 transform = Matrix4x4::Scaling(scaleFactor, scaleFactor, 1); + transform.PostTranslate(horizontalPadding + dest.x, verticalPadding + dest.y, 0); + + Rect transformedScrollRect = transform.TransformBounds(scrollRect.ToUnknownRect()); + + IntRect clipRect = RoundedOut(aContainer->GetEffectiveTransform().TransformBounds(transformedScrollRect)); + + // Render the scrollable area. + compositor->FillRect(transformedScrollRect, backgroundColor, clipRect, aContainer->GetEffectiveTransform()); + compositor->SlowDrawRect(transformedScrollRect, pageBorderColor, clipRect, aContainer->GetEffectiveTransform()); + + // If enabled, render information about visibility. + if (gfxPrefs::APZMinimapVisibilityEnabled()) { + // Retrieve the APZC scrollable layer guid, which we'll use to get the + // appropriate visibility information from the layer manager. + AsyncPanZoomController* controller = aLayer->GetAsyncPanZoomController(0); + MOZ_ASSERT(controller); + + ScrollableLayerGuid guid = controller->GetGuid(); + + // Get the approximately visible region. + static CSSIntRegion emptyRegion; + CSSIntRegion* visibleRegion = aManager->GetApproximatelyVisibleRegion(guid); + if (!visibleRegion) { + visibleRegion = &emptyRegion; + } + + // Iterate through and draw the rects in the region. + for (CSSIntRegion::RectIterator iterator = visibleRegion->RectIter(); + !iterator.Done(); + iterator.Next()) + { + CSSIntRect rect = iterator.Get(); + LayerRect scaledRect = rect * fm.LayersPixelsPerCSSPixel(); + Rect r = transform.TransformBounds(scaledRect.ToUnknownRect()); + compositor->FillRect(r, visibilityColor, clipRect, aContainer->GetEffectiveTransform()); + } + } + + // Render the displayport. + Rect r = transform.TransformBounds(dp.ToUnknownRect()); + compositor->FillRect(r, tileActiveColor, clipRect, aContainer->GetEffectiveTransform()); + compositor->SlowDrawRect(r, displayPortColor, clipRect, aContainer->GetEffectiveTransform()); + + // Render the critical displayport if there is one + if (cdp) { + r = transform.TransformBounds(cdp->ToUnknownRect()); + compositor->SlowDrawRect(r, criticalDisplayPortColor, clipRect, aContainer->GetEffectiveTransform()); + } + + // Render the viewport. + r = transform.TransformBounds(viewRect.ToUnknownRect()); + compositor->SlowDrawRect(r, viewPortColor, clipRect, aContainer->GetEffectiveTransform(), 2); +} + + +template<class ContainerT> void +RenderLayers(ContainerT* aContainer, + LayerManagerComposite* aManager, + const RenderTargetIntRect& aClipRect) +{ + Compositor* compositor = aManager->GetCompositor(); + + for (size_t i = 0u; i < aContainer->mPrepared->mLayers.Length(); i++) { + PreparedLayer& preparedData = aContainer->mPrepared->mLayers[i]; + LayerComposite* layerToRender = static_cast<LayerComposite*>(preparedData.mLayer->ImplData()); + const RenderTargetIntRect& clipRect = preparedData.mClipRect; + Layer* layer = layerToRender->GetLayer(); + + if (layerToRender->HasStaleCompositor()) { + continue; + } + + if (gfxPrefs::LayersDrawFPS()) { + for (const auto& metadata : layer->GetAllScrollMetadata()) { + if (metadata.IsApzForceDisabled()) { + aManager->DisabledApzWarning(); + break; + } + } + } + + Color color; + if (layerToRender->NeedToDrawCheckerboarding(&color)) { + if (gfxPrefs::APZHighlightCheckerboardedAreas()) { + color = Color(255 / 255.f, 188 / 255.f, 217 / 255.f, 1.f); // "Cotton Candy" + } + // Ideally we would want to intersect the checkerboard region from the APZ with the layer bounds + // and only fill in that area. However the layer bounds takes into account the base translation + // for the painted layer whereas the checkerboard region does not. One does not simply + // intersect areas in different coordinate spaces. So we do this a little more permissively + // and only fill in the background when we know there is checkerboard, which in theory + // should only occur transiently. + gfx::IntRect layerBounds = layer->GetLayerBounds(); + EffectChain effectChain(layer); + effectChain.mPrimaryEffect = new EffectSolidColor(color); + aManager->GetCompositor()->DrawQuad(gfx::Rect(layerBounds.x, layerBounds.y, layerBounds.width, layerBounds.height), + clipRect.ToUnknownRect(), + effectChain, layer->GetEffectiveOpacity(), + layer->GetEffectiveTransform()); + } + + if (layerToRender->HasLayerBeenComposited()) { + // Composer2D will compose this layer so skip GPU composition + // this time. The flag will be reset for the next composition phase + // at the beginning of LayerManagerComposite::Rener(). + gfx::IntRect clearRect = layerToRender->GetClearRect(); + if (!clearRect.IsEmpty()) { + // Clear layer's visible rect on FrameBuffer with transparent pixels + gfx::Rect fbRect(clearRect.x, clearRect.y, clearRect.width, clearRect.height); + compositor->ClearRect(fbRect); + layerToRender->SetClearRect(gfx::IntRect(0, 0, 0, 0)); + } + } else { + layerToRender->RenderLayer(clipRect.ToUnknownRect()); + } + + if (gfxPrefs::UniformityInfo()) { + PrintUniformityInfo(layer); + } + + if (gfxPrefs::DrawLayerInfo()) { + DrawLayerInfo(clipRect, aManager, layer); + } + + // Draw a border around scrollable layers. + // A layer can be scrolled by multiple scroll frames. Draw a border + // for each. + // Within the list of scroll frames for a layer, the layer border for a + // scroll frame lower down is affected by the async transforms on scroll + // frames higher up, so loop from the top down, and accumulate an async + // transform as we go along. + Matrix4x4 asyncTransform; + for (uint32_t i = layer->GetScrollMetadataCount(); i > 0; --i) { + if (layer->GetFrameMetrics(i - 1).IsScrollable()) { + // Since the composition bounds are in the parent layer's coordinates, + // use the parent's effective transform rather than the layer's own. + ParentLayerRect compositionBounds = layer->GetFrameMetrics(i - 1).GetCompositionBounds(); + aManager->GetCompositor()->DrawDiagnostics(DiagnosticFlags::CONTAINER, + compositionBounds.ToUnknownRect(), + aClipRect.ToUnknownRect(), + asyncTransform * aContainer->GetEffectiveTransform()); + if (AsyncPanZoomController* apzc = layer->GetAsyncPanZoomController(i - 1)) { + asyncTransform = + apzc->GetCurrentAsyncTransformWithOverscroll(AsyncPanZoomController::RESPECT_FORCE_DISABLE).ToUnknownMatrix() + * asyncTransform; + } + } + } + + if (gfxPrefs::APZMinimap()) { + RenderMinimap(aContainer, aManager, aClipRect, layer); + } + + // invariant: our GL context should be current here, I don't think we can + // assert it though + } +} + +template<class ContainerT> RefPtr<CompositingRenderTarget> +CreateOrRecycleTarget(ContainerT* aContainer, + LayerManagerComposite* aManager) +{ + Compositor* compositor = aManager->GetCompositor(); + SurfaceInitMode mode = INIT_MODE_CLEAR; + gfx::IntRect surfaceRect = ContainerVisibleRect(aContainer); + if (aContainer->GetLocalVisibleRegion().GetNumRects() == 1 && + (aContainer->GetContentFlags() & Layer::CONTENT_OPAQUE)) + { + mode = INIT_MODE_NONE; + } + + RefPtr<CompositingRenderTarget>& lastSurf = aContainer->mLastIntermediateSurface; + if (lastSurf && lastSurf->GetRect().IsEqualEdges(surfaceRect)) { + if (mode == INIT_MODE_CLEAR) { + lastSurf->ClearOnBind(); + } + + return lastSurf; + } else { + lastSurf = compositor->CreateRenderTarget(surfaceRect, mode); + + return lastSurf; + } +} + +template<class ContainerT> RefPtr<CompositingRenderTarget> +CreateTemporaryTargetAndCopyFromBackground(ContainerT* aContainer, + LayerManagerComposite* aManager) +{ + Compositor* compositor = aManager->GetCompositor(); + gfx::IntRect visibleRect = aContainer->GetLocalVisibleRegion().ToUnknownRegion().GetBounds(); + RefPtr<CompositingRenderTarget> previousTarget = compositor->GetCurrentRenderTarget(); + gfx::IntRect surfaceRect = gfx::IntRect(visibleRect.x, visibleRect.y, + visibleRect.width, visibleRect.height); + + gfx::IntPoint sourcePoint = gfx::IntPoint(visibleRect.x, visibleRect.y); + + gfx::Matrix4x4 transform = aContainer->GetEffectiveTransform(); + DebugOnly<gfx::Matrix> transform2d; + MOZ_ASSERT(transform.Is2D(&transform2d) && !gfx::ThebesMatrix(transform2d).HasNonIntegerTranslation()); + sourcePoint += gfx::IntPoint::Truncate(transform._41, transform._42); + + sourcePoint -= compositor->GetCurrentRenderTarget()->GetOrigin(); + + return compositor->CreateRenderTargetFromSource(surfaceRect, previousTarget, sourcePoint); +} + +template<class ContainerT> void +RenderIntermediate(ContainerT* aContainer, + LayerManagerComposite* aManager, + const gfx::IntRect& aClipRect, + RefPtr<CompositingRenderTarget> surface) +{ + Compositor* compositor = aManager->GetCompositor(); + RefPtr<CompositingRenderTarget> previousTarget = compositor->GetCurrentRenderTarget(); + + if (!surface) { + return; + } + + compositor->SetRenderTarget(surface); + // pre-render all of the layers into our temporary + RenderLayers(aContainer, aManager, RenderTargetIntRect::FromUnknownRect(aClipRect)); + // Unbind the current surface and rebind the previous one. + compositor->SetRenderTarget(previousTarget); +} + +template<class ContainerT> void +ContainerRender(ContainerT* aContainer, + LayerManagerComposite* aManager, + const gfx::IntRect& aClipRect) +{ + MOZ_ASSERT(aContainer->mPrepared); + + if (aContainer->UseIntermediateSurface()) { + RefPtr<CompositingRenderTarget> surface; + + if (aContainer->mPrepared->mNeedsSurfaceCopy) { + // we needed to copy the background so we waited until now to render the intermediate + surface = CreateTemporaryTargetAndCopyFromBackground(aContainer, aManager); + RenderIntermediate(aContainer, aManager, + aClipRect, surface); + } else { + surface = aContainer->mPrepared->mTmpTarget; + } + + if (!surface) { + aContainer->mPrepared = nullptr; + return; + } + + gfx::Rect visibleRect(aContainer->GetLocalVisibleRegion().ToUnknownRegion().GetBounds()); + RefPtr<Compositor> compositor = aManager->GetCompositor(); +#ifdef MOZ_DUMP_PAINTING + if (gfxEnv::DumpCompositorTextures()) { + RefPtr<gfx::DataSourceSurface> surf = surface->Dump(compositor); + if (surf) { + WriteSnapshotToDumpFile(aContainer, surf); + } + } +#endif + + RefPtr<ContainerT> container = aContainer; + RenderWithAllMasks(aContainer, compositor, aClipRect, + [&, surface, compositor, container](EffectChain& effectChain, const IntRect& clipRect) { + effectChain.mPrimaryEffect = new EffectRenderTarget(surface); + compositor->DrawQuad(visibleRect, clipRect, effectChain, + container->GetEffectiveOpacity(), + container->GetEffectiveTransform()); + }); + } else { + RenderLayers(aContainer, aManager, RenderTargetIntRect::FromUnknownRect(aClipRect)); + } + aContainer->mPrepared = nullptr; + + // If it is a scrollable container layer with no child layers, and one of the APZCs + // attached to it has a nonempty async transform, then that transform is not applied + // to any visible content. Display a warning box (conditioned on the FPS display being + // enabled). + if (gfxPrefs::LayersDrawFPS() && aContainer->IsScrollInfoLayer()) { + // Since aContainer doesn't have any children we can just iterate from the top metrics + // on it down to the bottom using GetFirstChild and not worry about walking onto another + // underlying layer. + for (LayerMetricsWrapper i(aContainer); i; i = i.GetFirstChild()) { + if (AsyncPanZoomController* apzc = i.GetApzc()) { + if (!apzc->GetAsyncTransformAppliedToContent() + && !AsyncTransformComponentMatrix(apzc->GetCurrentAsyncTransform(AsyncPanZoomController::NORMAL)).IsIdentity()) { + aManager->UnusedApzTransformWarning(); + break; + } + } + } + } +} + +ContainerLayerComposite::ContainerLayerComposite(LayerManagerComposite *aManager) + : ContainerLayer(aManager, nullptr) + , LayerComposite(aManager) +{ + MOZ_COUNT_CTOR(ContainerLayerComposite); + mImplData = static_cast<LayerComposite*>(this); +} + +ContainerLayerComposite::~ContainerLayerComposite() +{ + MOZ_COUNT_DTOR(ContainerLayerComposite); + + // We don't Destroy() on destruction here because this destructor + // can be called after remote content has crashed, and it may not be + // safe to free the IPC resources of our children. Those resources + // are automatically cleaned up by IPDL-generated code. + // + // In the common case of normal shutdown, either + // LayerManagerComposite::Destroy(), a parent + // *ContainerLayerComposite::Destroy(), or Disconnect() will trigger + // cleanup of our resources. + while (mFirstChild) { + RemoveChild(mFirstChild); + } +} + +void +ContainerLayerComposite::Destroy() +{ + if (!mDestroyed) { + while (mFirstChild) { + static_cast<LayerComposite*>(GetFirstChild()->ImplData())->Destroy(); + RemoveChild(mFirstChild); + } + mDestroyed = true; + } +} + +LayerComposite* +ContainerLayerComposite::GetFirstChildComposite() +{ + if (!mFirstChild) { + return nullptr; + } + return static_cast<LayerComposite*>(mFirstChild->ImplData()); +} + +void +ContainerLayerComposite::RenderLayer(const gfx::IntRect& aClipRect) +{ + ContainerRender(this, mCompositeManager, aClipRect); +} + +void +ContainerLayerComposite::Prepare(const RenderTargetIntRect& aClipRect) +{ + ContainerPrepare(this, mCompositeManager, aClipRect); +} + +void +ContainerLayerComposite::CleanupResources() +{ + mLastIntermediateSurface = nullptr; + mPrepared = nullptr; + + for (Layer* l = GetFirstChild(); l; l = l->GetNextSibling()) { + LayerComposite* layerToCleanup = static_cast<LayerComposite*>(l->ImplData()); + layerToCleanup->CleanupResources(); + } +} + +RefLayerComposite::RefLayerComposite(LayerManagerComposite* aManager) + : RefLayer(aManager, nullptr) + , LayerComposite(aManager) +{ + mImplData = static_cast<LayerComposite*>(this); +} + +RefLayerComposite::~RefLayerComposite() +{ + Destroy(); +} + +void +RefLayerComposite::Destroy() +{ + MOZ_ASSERT(!mFirstChild); + mDestroyed = true; +} + +LayerComposite* +RefLayerComposite::GetFirstChildComposite() +{ + if (!mFirstChild) { + return nullptr; + } + return static_cast<LayerComposite*>(mFirstChild->ImplData()); +} + +void +RefLayerComposite::RenderLayer(const gfx::IntRect& aClipRect) +{ + ContainerRender(this, mCompositeManager, aClipRect); +} + +void +RefLayerComposite::Prepare(const RenderTargetIntRect& aClipRect) +{ + ContainerPrepare(this, mCompositeManager, aClipRect); +} + +void +RefLayerComposite::CleanupResources() +{ + mLastIntermediateSurface = nullptr; + mPrepared = nullptr; +} + +} // namespace layers +} // namespace mozilla |