gecko/gfx/layers/client/ClientCanvasLayer.h

95 lines
2.2 KiB
C++

/* -*- 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 "ClientLayerManager.h"
#include "nsXULAppAPI.h"
#include "gfxASurface.h"
#include "mozilla/Preferences.h"
#include "mozilla/layers/LayerTransaction.h"
#include "mozilla/layers/CanvasClient.h"
#include "CopyableCanvasLayer.h"
using namespace mozilla::gfx;
namespace mozilla {
namespace layers {
class CanvasClient2D;
class CanvasClientWebGL;
class ClientCanvasLayer : public CopyableCanvasLayer,
public ClientLayer
{
public:
ClientCanvasLayer(ClientLayerManager* aLayerManager) :
CopyableCanvasLayer(aLayerManager, static_cast<ClientLayer*>(this))
{
MOZ_COUNT_CTOR(ClientCanvasLayer);
}
virtual ~ClientCanvasLayer()
{
MOZ_COUNT_DTOR(ClientCanvasLayer);
if (mCanvasClient) {
mCanvasClient->Detach();
mCanvasClient = nullptr;
}
}
virtual void SetVisibleRegion(const nsIntRegion& aRegion)
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
CanvasLayer::SetVisibleRegion(aRegion);
}
virtual void Initialize(const Data& aData);
virtual void RenderLayer();
virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs)
{
aAttrs = CanvasLayerAttributes(mFilter, mBounds);
}
virtual Layer* AsLayer() { return this; }
virtual ShadowableLayer* AsShadowableLayer() { return this; }
virtual void Disconnect()
{
mCanvasClient = nullptr;
ClientLayer::Disconnect();
}
virtual CompositableClient* GetCompositableClient() MOZ_OVERRIDE
{
return mCanvasClient;
}
protected:
ClientLayerManager* ClientManager()
{
return static_cast<ClientLayerManager*>(mManager);
}
CompositableType GetCompositableClientType()
{
if (mGLContext) {
return BUFFER_IMAGE_BUFFERED;
}
return BUFFER_IMAGE_SINGLE;
}
RefPtr<CanvasClient> mCanvasClient;
friend class CanvasClient2D;
friend class CanvasClientWebGL;
};
}
}
#endif