DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (5b81998bb7ab)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112
/* -*- 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 */