gfx/layers/GrallocImages.h@97036ab72558 (annotated)
gfx/layers/GrallocImages.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef GRALLOCIMAGES_H |
| michael@0 | 7 | #define GRALLOCIMAGES_H |
| michael@0 | 8 | |
| michael@0 | 9 | #ifdef MOZ_WIDGET_GONK |
| michael@0 | 10 | |
| michael@0 | 11 | #include "ImageLayers.h" |
| michael@0 | 12 | #include "ImageContainer.h" |
| michael@0 | 13 | #include "mozilla/gfx/Point.h" |
| michael@0 | 14 | #include "mozilla/layers/AtomicRefCountedWithFinalize.h" |
| michael@0 | 15 | #include "mozilla/layers/FenceUtils.h" |
| michael@0 | 16 | #include "mozilla/layers/LayersSurfaces.h" |
| michael@0 | 17 | |
| michael@0 | 18 | #include <ui/GraphicBuffer.h> |
| michael@0 | 19 | |
| michael@0 | 20 | namespace mozilla { |
| michael@0 | 21 | namespace layers { |
| michael@0 | 22 | |
| michael@0 | 23 | class GrallocTextureClientOGL; |
| michael@0 | 24 | |
| michael@0 | 25 | /** |
| michael@0 | 26 | * The YUV format supported by Android HAL |
| michael@0 | 27 | * |
| michael@0 | 28 | * 4:2:0 - CbCr width and height is half that of Y. |
| michael@0 | 29 | * |
| michael@0 | 30 | * This format assumes |
| michael@0 | 31 | * - an even width |
| michael@0 | 32 | * - an even height |
| michael@0 | 33 | * - a horizontal stride multiple of 16 pixels |
| michael@0 | 34 | * - a vertical stride equal to the height |
| michael@0 | 35 | * |
| michael@0 | 36 | * y_size = stride * height |
| michael@0 | 37 | * c_size = ALIGN(stride/2, 16) * height/2 |
| michael@0 | 38 | * size = y_size + c_size * 2 |
| michael@0 | 39 | * cr_offset = y_size |
| michael@0 | 40 | * cb_offset = y_size + c_size |
| michael@0 | 41 | * |
| michael@0 | 42 | * The Image that is rendered is the picture region defined by |
| michael@0 | 43 | * mPicX, mPicY and mPicSize. The size of the rendered image is |
| michael@0 | 44 | * mPicSize, not mYSize or mCbCrSize. |
| michael@0 | 45 | */ |
| michael@0 | 46 | class GrallocImage : public PlanarYCbCrImage |
| michael@0 | 47 | , public ISharedImage |
| michael@0 | 48 | { |
| michael@0 | 49 | typedef PlanarYCbCrData Data; |
| michael@0 | 50 | static uint32_t sColorIdMap[]; |
| michael@0 | 51 | public: |
| michael@0 | 52 | struct GrallocData { |
| michael@0 | 53 | nsRefPtr<TextureClient> mGraphicBuffer; |
| michael@0 | 54 | gfx::IntSize mPicSize; |
| michael@0 | 55 | }; |
| michael@0 | 56 | |
| michael@0 | 57 | GrallocImage(); |
| michael@0 | 58 | |
| michael@0 | 59 | virtual ~GrallocImage(); |
| michael@0 | 60 | |
| michael@0 | 61 | /** |
| michael@0 | 62 | * This makes a copy of the data buffers, in order to support functioning |
| michael@0 | 63 | * in all different layer managers. |
| michael@0 | 64 | */ |
| michael@0 | 65 | virtual void SetData(const Data& aData); |
| michael@0 | 66 | |
| michael@0 | 67 | /** |
| michael@0 | 68 | * Share the SurfaceDescriptor without making the copy, in order |
| michael@0 | 69 | * to support functioning in all different layer managers. |
| michael@0 | 70 | */ |
| michael@0 | 71 | virtual void SetData(const GrallocData& aData); |
| michael@0 | 72 | |
| michael@0 | 73 | // From [android 4.0.4]/hardware/msm7k/libgralloc-qsd8k/gralloc_priv.h |
| michael@0 | 74 | enum { |
| michael@0 | 75 | /* OEM specific HAL formats */ |
| michael@0 | 76 | HAL_PIXEL_FORMAT_YCbCr_422_P = 0x102, |
| michael@0 | 77 | HAL_PIXEL_FORMAT_YCbCr_420_P = 0x103, |
| michael@0 | 78 | HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109, |
| michael@0 | 79 | HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x10A, |
| michael@0 | 80 | HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03, |
| michael@0 | 81 | HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04, |
| michael@0 | 82 | }; |
| michael@0 | 83 | |
| michael@0 | 84 | virtual TemporaryRef<gfx::SourceSurface> GetAsSourceSurface() MOZ_OVERRIDE; |
| michael@0 | 85 | |
| michael@0 | 86 | android::sp<android::GraphicBuffer> GetGraphicBuffer() const; |
| michael@0 | 87 | |
| michael@0 | 88 | void* GetNativeBuffer(); |
| michael@0 | 89 | |
| michael@0 | 90 | virtual bool IsValid() { return !!mTextureClient; } |
| michael@0 | 91 | |
| michael@0 | 92 | virtual ISharedImage* AsSharedImage() MOZ_OVERRIDE { return this; } |
| michael@0 | 93 | |
| michael@0 | 94 | virtual TextureClient* GetTextureClient(CompositableClient* aClient) MOZ_OVERRIDE; |
| michael@0 | 95 | |
| michael@0 | 96 | virtual uint8_t* GetBuffer() |
| michael@0 | 97 | { |
| michael@0 | 98 | return static_cast<uint8_t*>(GetNativeBuffer()); |
| michael@0 | 99 | } |
| michael@0 | 100 | |
| michael@0 | 101 | private: |
| michael@0 | 102 | RefPtr<GrallocTextureClientOGL> mTextureClient; |
| michael@0 | 103 | }; |
| michael@0 | 104 | |
| michael@0 | 105 | } // namespace layers |
| michael@0 | 106 | } // namespace mozilla |
| michael@0 | 107 | #endif |
| michael@0 | 108 | |
| michael@0 | 109 | #endif /* GRALLOCIMAGES_H */ |
