зеркало из https://github.com/mozilla/gecko-dev.git
124 строки
3.9 KiB
C++
124 строки
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_CLIENTPAINTEDLAYER_H
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#define GFX_CLIENTPAINTEDLAYER_H
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#include "ClientLayerManager.h" // for ClientLayerManager, etc
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#include "Layers.h" // for PaintedLayer, etc
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#include "RotatedBuffer.h" // for RotatedBuffer, etc
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#include "mozilla/Attributes.h" // for override
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#include "mozilla/RefPtr.h" // for RefPtr
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#include "mozilla/layers/ContentClient.h" // for ContentClient
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#include "mozilla/mozalloc.h" // for operator delete
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#include "nsDebug.h" // for NS_ASSERTION
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#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR, etc
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#include "nsRegion.h" // for nsIntRegion
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#include "mozilla/layers/PLayerTransaction.h" // for PaintedLayerAttributes
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namespace mozilla {
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namespace gfx {
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class DrawEventRecorderMemory;
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class DrawTargetCapture;
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}; // namespace gfx
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namespace layers {
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class CompositableClient;
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class ShadowableLayer;
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class SpecificLayerAttributes;
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class ClientPaintedLayer : public PaintedLayer, public ClientLayer {
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public:
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typedef ContentClient::PaintState PaintState;
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typedef ContentClient::ContentType ContentType;
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explicit ClientPaintedLayer(
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ClientLayerManager* aLayerManager,
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LayerManager::PaintedLayerCreationHint aCreationHint = LayerManager::NONE)
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: PaintedLayer(aLayerManager, static_cast<ClientLayer*>(this),
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aCreationHint),
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mContentClient(nullptr) {
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MOZ_COUNT_CTOR(ClientPaintedLayer);
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}
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protected:
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virtual ~ClientPaintedLayer() {
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if (mContentClient) {
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mContentClient->OnDetach();
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mContentClient = nullptr;
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}
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MOZ_COUNT_DTOR(ClientPaintedLayer);
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}
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public:
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void SetVisibleRegion(const LayerIntRegion& aRegion) override {
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NS_ASSERTION(ClientManager()->InConstruction(),
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"Can only set properties in construction phase");
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PaintedLayer::SetVisibleRegion(aRegion);
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}
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void InvalidateRegion(const nsIntRegion& aRegion) override {
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NS_ASSERTION(ClientManager()->InConstruction(),
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"Can only set properties in construction phase");
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mInvalidRegion.Add(aRegion);
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UpdateValidRegionAfterInvalidRegionChanged();
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}
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void RenderLayer() override { RenderLayerWithReadback(nullptr); }
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void RenderLayerWithReadback(ReadbackProcessor* aReadback) override;
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void ClearCachedResources() override {
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if (mContentClient) {
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mContentClient->Clear();
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}
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ClearValidRegion();
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DestroyBackBuffer();
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}
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void HandleMemoryPressure() override {
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if (mContentClient) {
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mContentClient->HandleMemoryPressure();
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}
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}
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void FillSpecificAttributes(SpecificLayerAttributes& aAttrs) override {
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aAttrs = PaintedLayerAttributes(GetValidRegion());
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}
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ClientLayerManager* ClientManager() {
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return static_cast<ClientLayerManager*>(mManager);
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}
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Layer* AsLayer() override { return this; }
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ShadowableLayer* AsShadowableLayer() override { return this; }
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CompositableClient* GetCompositableClient() override {
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return mContentClient;
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}
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void Disconnect() override { mContentClient = nullptr; }
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protected:
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void RecordThebes();
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bool HasMaskLayers();
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bool EnsureContentClient();
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uint32_t GetPaintFlags(ReadbackProcessor* aReadback);
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void UpdateContentClient(PaintState& aState);
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bool UpdatePaintRegion(PaintState& aState);
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void FinishPaintState(PaintState& aState);
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void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
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void DestroyBackBuffer() { mContentClient = nullptr; }
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RefPtr<ContentClient> mContentClient;
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};
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} // namespace layers
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} // namespace mozilla
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#endif
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