DataSourceSurfaceWrapper.h (1760B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_ 8 #define MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_ 9 10 #include "2D.h" 11 12 namespace mozilla { 13 namespace gfx { 14 15 // Wraps a DataSourceSurface and forwards all methods except for GetType(), 16 // from which it always returns SurfaceType::DATA. 17 class DataSourceSurfaceWrapper final : public DataSourceSurface { 18 public: 19 MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceWrapper, override) 20 explicit DataSourceSurfaceWrapper(DataSourceSurface* aSurface) 21 : mSurface(aSurface) {} 22 23 bool Equals(SourceSurface* aOther, bool aSymmetric = true) override { 24 return DataSourceSurface::Equals(aOther, aSymmetric) || 25 mSurface->Equals(aOther, aSymmetric); 26 } 27 28 SurfaceType GetType() const override { return SurfaceType::DATA; } 29 30 uint8_t* GetData() override { return mSurface->GetData(); } 31 int32_t Stride() override { return mSurface->Stride(); } 32 IntSize GetSize() const override { return mSurface->GetSize(); } 33 SurfaceFormat GetFormat() const override { return mSurface->GetFormat(); } 34 bool IsValid() const override { return mSurface->IsValid(); } 35 36 bool Map(MapType aType, MappedSurface* aMappedSurface) override { 37 return mSurface->Map(aType, aMappedSurface); 38 } 39 40 void Unmap() override { mSurface->Unmap(); } 41 42 private: 43 RefPtr<DataSourceSurface> mSurface; 44 }; 45 46 } // namespace gfx 47 } // namespace mozilla 48 49 #endif /* MOZILLA_GFX_DATASOURCESURFACEWRAPPER_H_ */