gecko-dev/gfx/layers/GrallocImages.h

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3.5 KiB
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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 GRALLOCIMAGES_H
#define GRALLOCIMAGES_H
#ifdef MOZ_WIDGET_GONK
#include "ImageLayers.h"
#include "ImageContainer.h"
#include "mozilla/gfx/Point.h"
#include "mozilla/layers/AtomicRefCountedWithFinalize.h"
#include "mozilla/layers/FenceUtils.h"
#include "mozilla/layers/LayersSurfaces.h"
#include <ui/GraphicBuffer.h>
namespace mozilla {
namespace layers {
class TextureClient;
already_AddRefed<gfx::DataSourceSurface>
GetDataSourceSurfaceFrom(android::sp<android::GraphicBuffer>& aGraphicBuffer,
gfx::IntSize aSize,
const layers::PlanarYCbCrData& aYcbcrData);
/**
* The YUV format supported by Android HAL
*
* 4:2:0 - CbCr width and height is half that of Y.
*
* This format assumes
* - an even width
* - an even height
* - a horizontal stride multiple of 16 pixels
* - a vertical stride equal to the height
*
* y_size = stride * height
* c_size = ALIGN(stride/2, 16) * height/2
* size = y_size + c_size * 2
* cr_offset = y_size
* cb_offset = y_size + c_size
*
* The Image that is rendered is the picture region defined by
* mPicX, mPicY and mPicSize. The size of the rendered image is
* mPicSize, not mYSize or mCbCrSize.
*/
class GrallocImage : public RecyclingPlanarYCbCrImage
{
typedef PlanarYCbCrData Data;
static int32_t sColorIdMap[];
public:
GrallocImage();
virtual ~GrallocImage();
/**
* This makes a copy of the data buffers, in order to support functioning
* in all different layer managers.
*/
virtual bool SetData(const Data& aData);
/**
* Share the SurfaceDescriptor without making the copy, in order
* to support functioning in all different layer managers.
*/
void SetData(TextureClient* aGraphicBuffer, const gfx::IntSize& aSize);
// 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,
HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03,
HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04,
};
enum {
GRALLOC_SW_UAGE = android::GraphicBuffer::USAGE_SOFTWARE_MASK,
};
virtual already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;
android::sp<android::GraphicBuffer> GetGraphicBuffer() const;
void* GetNativeBuffer();
virtual bool IsValid() { return !!mTextureClient; }
virtual TextureClient* GetTextureClient(CompositableClient* aClient) override;
virtual GrallocImage* AsGrallocImage() override
{
return this;
}
virtual uint8_t* GetBuffer()
{
return static_cast<uint8_t*>(GetNativeBuffer());
}
int GetUsage()
{
return (static_cast<ANativeWindowBuffer*>(GetNativeBuffer()))->usage;
}
static int GetOmxFormat(int aFormat)
{
uint32_t omxFormat = 0;
for (int i = 0; sColorIdMap[i]; i += 2) {
if (sColorIdMap[i] == aFormat) {
omxFormat = sColorIdMap[i + 1];
break;
}
}
return omxFormat;
}
private:
RefPtr<TextureClient> mTextureClient;
};
} // namespace layers
} // namespace mozilla
#endif
#endif /* GRALLOCIMAGES_H */