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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef Canvas2DImageBufferSurface_h
#define Canvas2DImageBufferSurface_h
#include "platform/graphics/Canvas2DLayerBridge.h"
#include "platform/graphics/ImageBufferSurface.h"
#include "third_party/skia/include/core/SkRefCnt.h"
namespace blink {
// This shim is necessary because ImageBufferSurfaces are not allowed to be
// RefCounted.
class Canvas2DImageBufferSurface final : public ImageBufferSurface {
public:
Canvas2DImageBufferSurface(
std::unique_ptr<WebGraphicsContext3DProvider> contextProvider,
const IntSize& size,
int msaaSampleCount,
OpacityMode opacityMode,
Canvas2DLayerBridge::AccelerationMode accelerationMode,
sk_sp<SkColorSpace> colorSpace,
SkColorType colorType)
: ImageBufferSurface(size, opacityMode, colorSpace, colorType),
m_layerBridge(
adoptRef(new Canvas2DLayerBridge(std::move(contextProvider),
size,
msaaSampleCount,
opacityMode,
accelerationMode,
std::move(colorSpace),
colorType))) {
init();
}
Canvas2DImageBufferSurface(PassRefPtr<Canvas2DLayerBridge> bridge,
const IntSize& size)
: ImageBufferSurface(size,
bridge->opacityMode(),
bridge->colorSpace(),
bridge->colorType()),
m_layerBridge(std::move(bridge)) {
init();
}
~Canvas2DImageBufferSurface() override { m_layerBridge->beginDestruction(); }
// ImageBufferSurface implementation
void finalizeFrame(const FloatRect& dirtyRect) override {
m_layerBridge->finalizeFrame(dirtyRect);
}
void willOverwriteCanvas() override { m_layerBridge->willOverwriteCanvas(); }
SkCanvas* canvas() override { return m_layerBridge->canvas(); }
void disableDeferral(DisableDeferralReason reason) override {
m_layerBridge->disableDeferral(reason);
}
bool isValid() const override { return m_layerBridge->checkSurfaceValid(); }
bool restore() override { return m_layerBridge->restoreSurface(); }
WebLayer* layer() const override { return m_layerBridge->layer(); }
bool isAccelerated() const override { return m_layerBridge->isAccelerated(); }
void setFilterQuality(SkFilterQuality filterQuality) override {
m_layerBridge->setFilterQuality(filterQuality);
}
void setIsHidden(bool hidden) override { m_layerBridge->setIsHidden(hidden); }
void setImageBuffer(ImageBuffer* imageBuffer) override {
m_layerBridge->setImageBuffer(imageBuffer);
}
void didDraw(const FloatRect& rect) override { m_layerBridge->didDraw(rect); }
void flush(FlushReason) override { m_layerBridge->flush(); }
void flushGpu(FlushReason) override { m_layerBridge->flushGpu(); }
void prepareSurfaceForPaintingIfNeeded() override {
m_layerBridge->prepareSurfaceForPaintingIfNeeded();
}
bool writePixels(const SkImageInfo& origInfo,
const void* pixels,
size_t rowBytes,
int x,
int y) override {
return m_layerBridge->writePixels(origInfo, pixels, rowBytes, x, y);
}
sk_sp<SkImage> newImageSnapshot(AccelerationHint hint,
SnapshotReason reason) override {
return m_layerBridge->newImageSnapshot(hint, reason);
}
private:
void init() {
clear();
if (isValid())
m_layerBridge->flush();
}
RefPtr<Canvas2DLayerBridge> m_layerBridge;
};
} // namespace blink
#endif
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