michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_
michael@0: #define MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_
michael@0: 
michael@0: #include "2D.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace gfx {
michael@0: 
michael@0: // Wraps a DataSourceSurface and forwards all methods except for GetType(),
michael@0: // from which it always returns SurfaceType::DATA.
michael@0: class DataSourceSurfaceWrapper : public DataSourceSurface
michael@0: {
michael@0: public:
michael@0:   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceWrapper)
michael@0:   DataSourceSurfaceWrapper(DataSourceSurface *aSurface)
michael@0:    : mSurface(aSurface)
michael@0:   {}
michael@0: 
michael@0:   virtual SurfaceType GetType() const MOZ_OVERRIDE { return SurfaceType::DATA; }
michael@0: 
michael@0:   virtual uint8_t *GetData() MOZ_OVERRIDE { return mSurface->GetData(); }
michael@0:   virtual int32_t Stride() MOZ_OVERRIDE { return mSurface->Stride(); }
michael@0:   virtual IntSize GetSize() const MOZ_OVERRIDE { return mSurface->GetSize(); }
michael@0:   virtual SurfaceFormat GetFormat() const MOZ_OVERRIDE { return mSurface->GetFormat(); }
michael@0:   virtual bool IsValid() const MOZ_OVERRIDE { return mSurface->IsValid(); }
michael@0: 
michael@0: private:
michael@0:   RefPtr<DataSourceSurface> mSurface;
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif /* MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_ */