117 lines
3.1 KiB
C++
117 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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_CLIENTCANVASLAYER_H
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#define GFX_CLIENTCANVASLAYER_H
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#include "CanvasClient.h" // for CanvasClient, etc
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#include "ClientLayerManager.h" // for ClientLayerManager, etc
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#include "CopyableCanvasLayer.h" // for CopyableCanvasLayer
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#include "Layers.h" // for CanvasLayer, 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/LayersMessages.h" // for CanvasLayerAttributes, etc
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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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namespace mozilla {
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namespace gl {
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class SurfaceFactory;
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} // namespace gl
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namespace layers {
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class CompositableClient;
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class ShadowableLayer;
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class ClientCanvasLayer : public CopyableCanvasLayer,
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public ClientLayer
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{
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typedef CanvasClient::CanvasClientType CanvasClientType;
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public:
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explicit ClientCanvasLayer(ClientLayerManager* aLayerManager) :
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CopyableCanvasLayer(aLayerManager, static_cast<ClientLayer*>(this))
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{
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MOZ_COUNT_CTOR(ClientCanvasLayer);
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}
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protected:
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virtual ~ClientCanvasLayer();
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public:
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virtual void SetVisibleRegion(const LayerIntRegion& aRegion) override
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{
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NS_ASSERTION(ClientManager()->InConstruction(),
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"Can only set properties in construction phase");
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CanvasLayer::SetVisibleRegion(aRegion);
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}
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virtual void Initialize(const Data& aData) override;
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virtual void RenderLayer() override;
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virtual void ClearCachedResources() override
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{
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if (mCanvasClient) {
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mCanvasClient->Clear();
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}
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}
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virtual void HandleMemoryPressure() override
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{
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if (mCanvasClient) {
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mCanvasClient->HandleMemoryPressure();
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}
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}
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virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs) override
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{
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aAttrs = CanvasLayerAttributes(mSamplingFilter, mBounds);
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}
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virtual Layer* AsLayer() override { return this; }
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virtual ShadowableLayer* AsShadowableLayer() override { return this; }
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virtual void Disconnect() override
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{
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mCanvasClient = nullptr;
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ClientLayer::Disconnect();
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}
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virtual CompositableClient* GetCompositableClient() override
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{
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return mCanvasClient;
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}
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const TextureFlags& Flags() const { return mFlags; }
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protected:
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bool UpdateTarget(gfx::DrawTarget* aDestTarget = nullptr);
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ClientLayerManager* ClientManager()
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{
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return static_cast<ClientLayerManager*>(mManager);
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}
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CanvasClientType GetCanvasClientType();
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RefPtr<CanvasClient> mCanvasClient;
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UniquePtr<gl::SurfaceFactory> mFactory;
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TextureFlags mFlags;
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friend class CanvasClient2D;
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friend class CanvasClientSharedSurface;
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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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