gfx/2d/SourceSurfaceSkia.h
author James Willcox <snorp@snorp.net>
Wed, 29 May 2013 12:49:40 -0400
changeset 144808 a35e0a08ef37d4c6d1730c0dbf19ffb1d933e07b
parent 107947 8f6b4e0bcef0922e09b722a6b52285918ca88c63
child 146981 2a1e3764868afccdf0892cf4dcbebc89a968494f
permissions -rw-r--r--
Bug 854556 - Only hold SkCanvas in DrawTargetSkia r=mattwoodword

/* -*- 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 MOZILLA_GFX_SOURCESURFACESKIA_H_
#define MOZILLA_GFX_SOURCESURFACESKIA_H_

#include "2D.h"
#include <vector>
#include "skia/SkCanvas.h"
#include "skia/SkBitmap.h"

namespace mozilla {
namespace gfx {

class DrawTargetSkia;

class SourceSurfaceSkia : public DataSourceSurface
{
public:
  SourceSurfaceSkia();
  ~SourceSurfaceSkia();

  virtual SurfaceType GetType() const { return SURFACE_SKIA; }
  virtual IntSize GetSize() const;
  virtual SurfaceFormat GetFormat() const;

  SkBitmap& GetBitmap() { return mBitmap; }

  bool InitFromData(unsigned char* aData,
                    const IntSize &aSize,
                    int32_t aStride,
                    SurfaceFormat aFormat);

  bool InitFromCanvas(SkCanvas* aCanvas,
                      SurfaceFormat aFormat,
                      DrawTargetSkia* aOwner);

  virtual unsigned char *GetData();

  virtual int32_t Stride() { return mStride; }

private:
  friend class DrawTargetSkia;

  void DrawTargetWillChange();
  void DrawTargetDestroyed();
  void MarkIndependent();

  SkBitmap mBitmap;
  SurfaceFormat mFormat;
  IntSize mSize;
  int32_t mStride;
  DrawTargetSkia* mDrawTarget;
};

}
}

#endif /* MOZILLA_GFX_SOURCESURFACESKIA_H_ */