/* -*- 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_2d_SourceSurfaceCapture_h

#define mozilla_gfx_2d_SourceSurfaceCapture_h

#include "2D.h"

#include "CaptureCommandList.h"

#include "mozilla/Mutex.h"

namespace mozilla {

namespace gfx {

class DrawTargetCaptureImpl;

class SourceSurfaceCapture : public SourceSurface

{

  friend class DrawTargetCaptureImpl;

public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(SourceSurfaceCapture, override)

  explicit SourceSurfaceCapture(DrawTargetCaptureImpl* aOwner);

  explicit SourceSurfaceCapture(DrawTargetCaptureImpl* aOwner,

                                LuminanceType aLuminanceType,

                                float aOpacity);

  ~SourceSurfaceCapture();

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

  IntSize GetSize() const override { return mSize; }

  SurfaceFormat GetFormat() const override { return mFormat; }

  bool IsValid() const override;

  already_AddRefed<DataSourceSurface> GetDataSurface() override;

  // The backend hint is not guaranteed to be honored, so callers must check

  // the resulting type if needed.

  RefPtr<SourceSurface> Resolve(BackendType aBackendType = BackendType::NONE);

protected:

  RefPtr<SourceSurface> ResolveImpl(BackendType aBackendType);

  void DrawTargetWillDestroy();

  void DrawTargetWillChange();

private:

  IntSize mSize;

  SurfaceFormat mFormat;

  int32_t mStride;

  int32_t mSurfaceAllocationSize;

  RefPtr<DrawTarget> mRefDT;

  DrawTargetCaptureImpl* mOwner;

  CaptureCommandList mCommands;

  bool mHasCommandList;

  bool mShouldResolveToLuminance;

  LuminanceType mLuminanceType;

  float mOpacity;

  // Note that we have to keep a reference around. Internal methods like

  // GetSkImageForSurface expect their callers to hold a reference, which

  // isn't easily possible for nested surfaces.

  mutable Mutex mLock;

  RefPtr<SourceSurface> mResolved;

};

} // namespace gfx

} // namespace mozilla

#endif // mozilla_gfx_2d_SourceSurfaceCapture_h