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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_CLIENTPAINTEDLAYER_H
#define GFX_CLIENTPAINTEDLAYER_H
#include "ClientLayerManager.h" // for ClientLayerManager, etc
#include "Layers.h" // for PaintedLayer, etc
#include "RotatedBuffer.h" // for RotatedContentBuffer, etc
#include "mozilla/Attributes.h" // for override
#include "mozilla/RefPtr.h" // for RefPtr
#include "mozilla/layers/ContentClient.h" // for ContentClient
#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
#include "mozilla/layers/PLayerTransaction.h" // for PaintedLayerAttributes
namespace mozilla {
namespace layers {
class CompositableClient;
class ShadowableLayer;
class SpecificLayerAttributes;
class ClientPaintedLayer : public PaintedLayer,
public ClientLayer {
public:
typedef RotatedContentBuffer::PaintState PaintState;
typedef RotatedContentBuffer::ContentType ContentType;
explicit ClientPaintedLayer(ClientLayerManager* aLayerManager,
LayerManager::PaintedLayerCreationHint aCreationHint = LayerManager::NONE) :
PaintedLayer(aLayerManager, static_cast<ClientLayer*>(this), aCreationHint),
mContentClient(nullptr)
{
MOZ_COUNT_CTOR(ClientPaintedLayer);
}
protected:
virtual ~ClientPaintedLayer()
{
if (mContentClient) {
mContentClient->OnDetach();
mContentClient = nullptr;
}
MOZ_COUNT_DTOR(ClientPaintedLayer);
}
public:
virtual void SetVisibleRegion(const LayerIntRegion& aRegion) override
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
PaintedLayer::SetVisibleRegion(aRegion);
}
virtual void InvalidateRegion(const nsIntRegion& aRegion) override
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
mInvalidRegion.Add(aRegion);
mValidRegion.Sub(mValidRegion, mInvalidRegion.GetRegion());
}
virtual void RenderLayer() override { RenderLayerWithReadback(nullptr); }
virtual void RenderLayerWithReadback(ReadbackProcessor *aReadback) override;
virtual void ClearCachedResources() override
{
if (mContentClient) {
mContentClient->Clear();
}
mValidRegion.SetEmpty();
DestroyBackBuffer();
}
virtual void HandleMemoryPressure() override
{
if (mContentClient) {
mContentClient->HandleMemoryPressure();
}
}
virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs) override
{
aAttrs = PaintedLayerAttributes(GetValidRegion());
}
ClientLayerManager* ClientManager()
{
return static_cast<ClientLayerManager*>(mManager);
}
virtual Layer* AsLayer() override { return this; }
virtual ShadowableLayer* AsShadowableLayer() override { return this; }
virtual CompositableClient* GetCompositableClient() override
{
return mContentClient;
}
virtual void Disconnect() override
{
mContentClient = nullptr;
ClientLayer::Disconnect();
}
protected:
void PaintThebes();
virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix) override;
void DestroyBackBuffer()
{
mContentClient = nullptr;
}
RefPtr<ContentClient> mContentClient;
};
} // namespace layers
} // namespace mozilla
#endif
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