SourceSurfaceCairo.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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_OP_SOURCESURFACE_CAIRO_H

#define _MOZILLA_GFX_OP_SOURCESURFACE_CAIRO_H

#include "2D.h"

namespace mozilla {

namespace gfx {

class DrawTargetCairo;

class SourceSurfaceCairo : public SourceSurface {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(SourceSurfaceCairo, override)

  // Create a SourceSurfaceCairo. The surface will not be copied, but simply

  // referenced.

  // If aDrawTarget is non-nullptr, it is assumed that this is a snapshot source

  // surface, and we'll call DrawTargetCairo::RemoveSnapshot(this) on it when

  // we're destroyed.

  SourceSurfaceCairo(cairo_surface_t* aSurface, const IntSize& aSize,

                     const SurfaceFormat& aFormat,

                     DrawTargetCairo* aDrawTarget = nullptr);

  virtual ~SourceSurfaceCairo();

  SurfaceType GetType() const override { return SurfaceType::CAIRO; }

  IntSize GetSize() const override;

  SurfaceFormat GetFormat() const override;

  already_AddRefed<DataSourceSurface> GetDataSurface() override;

  cairo_surface_t* GetSurface() const;

 private:  // methods

  friend class DrawTargetCairo;

  void DrawTargetWillChange();

 private:  // data

  IntSize mSize;

  SurfaceFormat mFormat;

  cairo_surface_t* mSurface;

  DrawTargetCairo* mDrawTarget;

};

class DataSourceSurfaceCairo : public DataSourceSurface {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceCairo, override)

  explicit DataSourceSurfaceCairo(cairo_surface_t* imageSurf);

  virtual ~DataSourceSurfaceCairo();

  unsigned char* GetData() override;

  int32_t Stride() override;

  SurfaceType GetType() const override { return SurfaceType::CAIRO_IMAGE; }

  IntSize GetSize() const override;

  SurfaceFormat GetFormat() const override;

  cairo_surface_t* GetSurface() const;

 private:

  cairo_surface_t* mImageSurface;

};

}  // namespace gfx

}  // namespace mozilla

#endif  // _MOZILLA_GFX_OP_SOURCESURFACE_CAIRO_H