gfx/2d/DataSourceSurfaceWrapper.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/2d/DataSourceSurfaceWrapper.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,39 @@
     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 MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_
    1.10 +#define MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_
    1.11 +
    1.12 +#include "2D.h"
    1.13 +
    1.14 +namespace mozilla {
    1.15 +namespace gfx {
    1.16 +
    1.17 +// Wraps a DataSourceSurface and forwards all methods except for GetType(),
    1.18 +// from which it always returns SurfaceType::DATA.
    1.19 +class DataSourceSurfaceWrapper : public DataSourceSurface
    1.20 +{
    1.21 +public:
    1.22 +  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceWrapper)
    1.23 +  DataSourceSurfaceWrapper(DataSourceSurface *aSurface)
    1.24 +   : mSurface(aSurface)
    1.25 +  {}
    1.26 +
    1.27 +  virtual SurfaceType GetType() const MOZ_OVERRIDE { return SurfaceType::DATA; }
    1.28 +
    1.29 +  virtual uint8_t *GetData() MOZ_OVERRIDE { return mSurface->GetData(); }
    1.30 +  virtual int32_t Stride() MOZ_OVERRIDE { return mSurface->Stride(); }
    1.31 +  virtual IntSize GetSize() const MOZ_OVERRIDE { return mSurface->GetSize(); }
    1.32 +  virtual SurfaceFormat GetFormat() const MOZ_OVERRIDE { return mSurface->GetFormat(); }
    1.33 +  virtual bool IsValid() const MOZ_OVERRIDE { return mSurface->IsValid(); }
    1.34 +
    1.35 +private:
    1.36 +  RefPtr<DataSourceSurface> mSurface;
    1.37 +};
    1.38 +
    1.39 +}
    1.40 +}
    1.41 +
    1.42 +#endif /* MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_ */

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