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