gecko-dev/gfx/layers/GonkIOSurfaceImage.h

113 строки
2.7 KiB
C++

/* -*- 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 GONKIOSURFACEIMAGE_H
#define GONKIOSURFACEIMAGE_H
#ifdef MOZ_WIDGET_GONK
#include "mozilla/layers/LayersSurfaces.h"
#include "ImageContainer.h"
#include <ui/GraphicBuffer.h>
namespace mozilla {
namespace layers {
/**
* The gralloc buffer maintained by android GraphicBuffer can be
* shared between the compositor thread and the producer thread. The
* mGraphicBuffer is owned by the producer thread, but when it is
* wrapped by GraphicBufferLocked and passed to the compositor, the
* buffer content is guaranteed to not change until Unlock() is
* called. Each producer must maintain their own buffer queue and
* implement the GraphicBufferLocked::Unlock() interface.
*/
class GraphicBufferLocked {
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GraphicBufferLocked)
public:
GraphicBufferLocked(SurfaceDescriptor aGraphicBuffer)
: mSurfaceDescriptor(aGraphicBuffer)
{}
virtual ~GraphicBufferLocked() {}
virtual void Unlock() {}
SurfaceDescriptor GetSurfaceDescriptor()
{
return mSurfaceDescriptor;
}
protected:
SurfaceDescriptor mSurfaceDescriptor;
};
class GonkIOSurfaceImage : public Image {
typedef android::GraphicBuffer GraphicBuffer;
static uint32_t sColorIdMap[];
public:
struct Data {
nsRefPtr<GraphicBufferLocked> mGraphicBuffer;
gfxIntSize mPicSize;
};
GonkIOSurfaceImage()
: Image(NULL, GONK_IO_SURFACE)
, mSize(0, 0)
{}
virtual ~GonkIOSurfaceImage()
{
mGraphicBuffer->Unlock();
}
virtual void SetData(const Data& aData)
{
mGraphicBuffer = aData.mGraphicBuffer;
mSize = aData.mPicSize;
}
virtual gfxIntSize GetSize()
{
return mSize;
}
// From [android 4.0.4]/hardware/msm7k/libgralloc-qsd8k/gralloc_priv.h
enum {
/* OEM specific HAL formats */
HAL_PIXEL_FORMAT_YCbCr_422_P = 0x102,
HAL_PIXEL_FORMAT_YCbCr_420_P = 0x103,
HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109,
HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x10A,
};
enum {
OMX_QCOM_COLOR_FormatYVU420SemiPlanar = 0x7FA30C00,
};
virtual already_AddRefed<gfxASurface> GetAsSurface();
void* GetNativeBuffer()
{
return GrallocBufferActor::GetFrom(GetSurfaceDescriptor())->getNativeBuffer();
}
SurfaceDescriptor GetSurfaceDescriptor()
{
return mGraphicBuffer->GetSurfaceDescriptor();
}
private:
nsRefPtr<GraphicBufferLocked> mGraphicBuffer;
gfxIntSize mSize;
};
} // namespace layers
} // namespace mozilla
#endif
#endif /* GONKIOSURFACEIMAGE_H */