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102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GONKIOSURFACEIMAGE_H
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#define GONKIOSURFACEIMAGE_H
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#ifdef MOZ_WIDGET_GONK
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#include "mozilla/layers/LayersSurfaces.h"
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#include "ImageContainer.h"
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#include <ui/GraphicBuffer.h>
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namespace mozilla {
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namespace layers {
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/**
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* The gralloc buffer maintained by android GraphicBuffer can be
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* shared between the compositor thread and the producer thread. The
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* mGraphicBuffer is owned by the producer thread, but when it is
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* wrapped by GraphicBufferLocked and passed to the compositor, the
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* buffer content is guaranteed to not change until Unlock() is
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* called. Each producer must maintain their own buffer queue and
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* implement the GraphicBufferLocked::Unlock() interface.
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*/
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class GraphicBufferLocked {
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GraphicBufferLocked)
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public:
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GraphicBufferLocked(SurfaceDescriptor aGraphicBuffer)
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: mSurfaceDescriptor(aGraphicBuffer)
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{}
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virtual ~GraphicBufferLocked() {}
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virtual void Unlock() {}
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SurfaceDescriptor GetSurfaceDescriptor()
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{
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return mSurfaceDescriptor;
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}
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protected:
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SurfaceDescriptor mSurfaceDescriptor;
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};
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class THEBES_API GonkIOSurfaceImage : public Image {
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public:
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struct Data {
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nsRefPtr<GraphicBufferLocked> mGraphicBuffer;
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gfxIntSize mPicSize;
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};
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GonkIOSurfaceImage()
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: Image(NULL, GONK_IO_SURFACE)
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, mSize(0, 0)
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{}
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virtual ~GonkIOSurfaceImage()
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{
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mGraphicBuffer->Unlock();
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}
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virtual void SetData(const Data& aData)
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{
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mGraphicBuffer = aData.mGraphicBuffer;
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mSize = aData.mPicSize;
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}
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virtual gfxIntSize GetSize()
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{
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return mSize;
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}
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virtual already_AddRefed<gfxASurface> GetAsSurface()
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{
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// We need to fix this and return a ASurface at some point.
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return nullptr;
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}
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void* GetNativeBuffer()
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{
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return GrallocBufferActor::GetFrom(GetSurfaceDescriptor())->getNativeBuffer();
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}
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SurfaceDescriptor GetSurfaceDescriptor()
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{
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return mGraphicBuffer->GetSurfaceDescriptor();
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}
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private:
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nsRefPtr<GraphicBufferLocked> mGraphicBuffer;
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gfxIntSize mSize;
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};
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} // namespace layers
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} // namespace mozilla
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#endif
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#endif /* GONKIOSURFACEIMAGE_H */
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