зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
2.9 KiB
C++
110 строки
2.9 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 GRALLOCIMAGES_H
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#define GRALLOCIMAGES_H
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#ifdef MOZ_WIDGET_GONK
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#include "ImageLayers.h"
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#include "ImageContainer.h"
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#include "mozilla/gfx/Point.h"
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#include "mozilla/layers/AtomicRefCountedWithFinalize.h"
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#include "mozilla/layers/FenceUtils.h"
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#include "mozilla/layers/LayersSurfaces.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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class GrallocTextureClientOGL;
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/**
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* The YUV format supported by Android HAL
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*
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* 4:2:0 - CbCr width and height is half that of Y.
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*
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* This format assumes
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* - an even width
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* - an even height
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* - a horizontal stride multiple of 16 pixels
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* - a vertical stride equal to the height
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*
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* y_size = stride * height
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* c_size = ALIGN(stride/2, 16) * height/2
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* size = y_size + c_size * 2
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* cr_offset = y_size
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* cb_offset = y_size + c_size
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*
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* The Image that is rendered is the picture region defined by
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* mPicX, mPicY and mPicSize. The size of the rendered image is
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* mPicSize, not mYSize or mCbCrSize.
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*/
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class GrallocImage : public PlanarYCbCrImage
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, public ISharedImage
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{
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typedef PlanarYCbCrData Data;
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static uint32_t sColorIdMap[];
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public:
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struct GrallocData {
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nsRefPtr<TextureClient> mGraphicBuffer;
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gfx::IntSize mPicSize;
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};
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GrallocImage();
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virtual ~GrallocImage();
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/**
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* This makes a copy of the data buffers, in order to support functioning
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* in all different layer managers.
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*/
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virtual void SetData(const Data& aData);
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/**
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* Share the SurfaceDescriptor without making the copy, in order
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* to support functioning in all different layer managers.
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*/
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virtual void SetData(const GrallocData& aData);
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// From [android 4.0.4]/hardware/msm7k/libgralloc-qsd8k/gralloc_priv.h
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enum {
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/* OEM specific HAL formats */
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HAL_PIXEL_FORMAT_YCbCr_422_P = 0x102,
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HAL_PIXEL_FORMAT_YCbCr_420_P = 0x103,
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HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109,
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HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x10A,
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HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03,
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HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04,
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};
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virtual TemporaryRef<gfx::SourceSurface> GetAsSourceSurface() MOZ_OVERRIDE;
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android::sp<android::GraphicBuffer> GetGraphicBuffer() const;
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void* GetNativeBuffer();
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virtual bool IsValid() { return !!mTextureClient; }
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virtual ISharedImage* AsSharedImage() MOZ_OVERRIDE { return this; }
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virtual TextureClient* GetTextureClient(CompositableClient* aClient) MOZ_OVERRIDE;
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virtual uint8_t* GetBuffer()
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{
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return static_cast<uint8_t*>(GetNativeBuffer());
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}
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private:
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RefPtr<GrallocTextureClientOGL> mTextureClient;
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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 /* GRALLOCIMAGES_H */
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