1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/GrallocImages.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,109 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GRALLOCIMAGES_H
1.10 +#define GRALLOCIMAGES_H
1.11 +
1.12 +#ifdef MOZ_WIDGET_GONK
1.13 +
1.14 +#include "ImageLayers.h"
1.15 +#include "ImageContainer.h"
1.16 +#include "mozilla/gfx/Point.h"
1.17 +#include "mozilla/layers/AtomicRefCountedWithFinalize.h"
1.18 +#include "mozilla/layers/FenceUtils.h"
1.19 +#include "mozilla/layers/LayersSurfaces.h"
1.20 +
1.21 +#include <ui/GraphicBuffer.h>
1.22 +
1.23 +namespace mozilla {
1.24 +namespace layers {
1.25 +
1.26 +class GrallocTextureClientOGL;
1.27 +
1.28 +/**
1.29 + * The YUV format supported by Android HAL
1.30 + *
1.31 + * 4:2:0 - CbCr width and height is half that of Y.
1.32 + *
1.33 + * This format assumes
1.34 + * - an even width
1.35 + * - an even height
1.36 + * - a horizontal stride multiple of 16 pixels
1.37 + * - a vertical stride equal to the height
1.38 + *
1.39 + * y_size = stride * height
1.40 + * c_size = ALIGN(stride/2, 16) * height/2
1.41 + * size = y_size + c_size * 2
1.42 + * cr_offset = y_size
1.43 + * cb_offset = y_size + c_size
1.44 + *
1.45 + * The Image that is rendered is the picture region defined by
1.46 + * mPicX, mPicY and mPicSize. The size of the rendered image is
1.47 + * mPicSize, not mYSize or mCbCrSize.
1.48 + */
1.49 +class GrallocImage : public PlanarYCbCrImage
1.50 + , public ISharedImage
1.51 +{
1.52 + typedef PlanarYCbCrData Data;
1.53 + static uint32_t sColorIdMap[];
1.54 +public:
1.55 + struct GrallocData {
1.56 + nsRefPtr<TextureClient> mGraphicBuffer;
1.57 + gfx::IntSize mPicSize;
1.58 + };
1.59 +
1.60 + GrallocImage();
1.61 +
1.62 + virtual ~GrallocImage();
1.63 +
1.64 + /**
1.65 + * This makes a copy of the data buffers, in order to support functioning
1.66 + * in all different layer managers.
1.67 + */
1.68 + virtual void SetData(const Data& aData);
1.69 +
1.70 + /**
1.71 + * Share the SurfaceDescriptor without making the copy, in order
1.72 + * to support functioning in all different layer managers.
1.73 + */
1.74 + virtual void SetData(const GrallocData& aData);
1.75 +
1.76 + // From [android 4.0.4]/hardware/msm7k/libgralloc-qsd8k/gralloc_priv.h
1.77 + enum {
1.78 + /* OEM specific HAL formats */
1.79 + HAL_PIXEL_FORMAT_YCbCr_422_P = 0x102,
1.80 + HAL_PIXEL_FORMAT_YCbCr_420_P = 0x103,
1.81 + HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109,
1.82 + HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x10A,
1.83 + HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03,
1.84 + HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04,
1.85 + };
1.86 +
1.87 + virtual TemporaryRef<gfx::SourceSurface> GetAsSourceSurface() MOZ_OVERRIDE;
1.88 +
1.89 + android::sp<android::GraphicBuffer> GetGraphicBuffer() const;
1.90 +
1.91 + void* GetNativeBuffer();
1.92 +
1.93 + virtual bool IsValid() { return !!mTextureClient; }
1.94 +
1.95 + virtual ISharedImage* AsSharedImage() MOZ_OVERRIDE { return this; }
1.96 +
1.97 + virtual TextureClient* GetTextureClient(CompositableClient* aClient) MOZ_OVERRIDE;
1.98 +
1.99 + virtual uint8_t* GetBuffer()
1.100 + {
1.101 + return static_cast<uint8_t*>(GetNativeBuffer());
1.102 + }
1.103 +
1.104 +private:
1.105 + RefPtr<GrallocTextureClientOGL> mTextureClient;
1.106 +};
1.107 +
1.108 +} // namespace layers
1.109 +} // namespace mozilla
1.110 +#endif
1.111 +
1.112 +#endif /* GRALLOCIMAGES_H */
