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/* -*- Mode: C++; tab-width: 20; 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 MOZILLA_GFX_SINGLETILEDCONTENTCLIENT_H
#define MOZILLA_GFX_SINGLETILEDCONTENTCLIENT_H
#include "TiledContentClient.h"
namespace mozilla {
namespace layers {
class ClientTiledPaintedLayer;
class ClientLayerManager;
/**
* Provide an instance of TiledLayerBuffer backed by drawable TextureClients.
* This buffer provides an implementation of ValidateTile using a
* thebes callback and can support painting using a single paint buffer.
* Whether a single paint buffer is used is controlled by
* gfxPrefs::PerTileDrawing().
*/
class ClientSingleTiledLayerBuffer
: public ClientTiledLayerBuffer
, public TextureClientAllocator
{
virtual ~ClientSingleTiledLayerBuffer() {}
public:
ClientSingleTiledLayerBuffer(ClientTiledPaintedLayer& aPaintedLayer,
CompositableClient& aCompositableClient,
ClientLayerManager* aManager);
// TextureClientAllocator
already_AddRefed<TextureClient> GetTextureClient() override;
void ReturnTextureClientDeferred(TextureClient* aClient) override {}
void ReportClientLost() override {}
// ClientTiledLayerBuffer
void PaintThebes(const nsIntRegion& aNewValidRegion,
const nsIntRegion& aPaintRegion,
const nsIntRegion& aDirtyRegion,
LayerManager::DrawPaintedLayerCallback aCallback,
void* aCallbackData,
bool aIsProgressive = false) override;
bool SupportsProgressiveUpdate() override { return false; }
bool ProgressiveUpdate(nsIntRegion& aValidRegion,
nsIntRegion& aInvalidRegion,
const nsIntRegion& aOldValidRegion,
BasicTiledLayerPaintData* aPaintData,
LayerManager::DrawPaintedLayerCallback aCallback,
void* aCallbackData) override
{
MOZ_ASSERT(false, "ProgressiveUpdate not supported!");
return false;
}
void ResetPaintedAndValidState() override {
mPaintedRegion.SetEmpty();
mValidRegion.SetEmpty();
mTile.DiscardBuffers();
}
const nsIntRegion& GetValidRegion() override {
return mValidRegion;
}
bool IsLowPrecision() const override {
return false;
}
void ReleaseTiles();
void DiscardBuffers();
SurfaceDescriptorTiles GetSurfaceDescriptorTiles();
void ClearPaintedRegion() {
mPaintedRegion.SetEmpty();
}
private:
TileClient mTile;
nsIntRegion mPaintedRegion;
nsIntRegion mValidRegion;
bool mWasLastPaintProgressive;
/**
* While we're adding tiles, this is used to keep track of the position of
* the top-left of the top-left-most tile. When we come to wrap the tiles in
* TiledDrawTarget we subtract the value of this member from each tile's
* offset so that all the tiles have a positive offset, then add a
* translation to the TiledDrawTarget to compensate. This is important so
* that the mRect of the TiledDrawTarget is always at a positive x/y
* position, otherwise its GetSize() methods will be broken.
*/
gfx::IntPoint mTilingOrigin;
gfx::IntSize mSize;
gfxImageFormat mFormat;
};
class SingleTiledContentClient : public TiledContentClient
{
public:
SingleTiledContentClient(ClientTiledPaintedLayer& aPaintedLayer,
ClientLayerManager* aManager);
protected:
~SingleTiledContentClient()
{
MOZ_COUNT_DTOR(SingleTiledContentClient);
mTiledBuffer->ReleaseTiles();
}
public:
static bool ClientSupportsLayerSize(const gfx::IntSize& aSize, ClientLayerManager* aManager);
virtual void ClearCachedResources() override;
virtual void UpdatedBuffer(TiledBufferType aType) override;
virtual ClientTiledLayerBuffer* GetTiledBuffer() override { return mTiledBuffer; }
virtual ClientTiledLayerBuffer* GetLowPrecisionTiledBuffer() override { return nullptr; }
private:
RefPtr<ClientSingleTiledLayerBuffer> mTiledBuffer;
};
}
}
#endif
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