SourceSurfaceD2D1.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_SOURCESURFACED2D1_H_

#define MOZILLA_GFX_SOURCESURFACED2D1_H_

#include "2D.h"

#include "HelpersD2D.h"

#include <vector>

#include <d3d11.h>

#include <d2d1_1.h>

namespace mozilla {

namespace gfx {

class DrawTargetD2D1;

class SourceSurfaceD2D1 : public SourceSurface {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(SourceSurfaceD2D1, override)

  SourceSurfaceD2D1(ID2D1Image* aImage, ID2D1DeviceContext* aDC,

                    SurfaceFormat aFormat, const IntSize& aSize,

                    DrawTargetD2D1* aDT = nullptr);

  ~SourceSurfaceD2D1();

  SurfaceType GetType() const override { return SurfaceType::D2D1_1_IMAGE; }

  IntSize GetSize() const override { return mSize; }

  SurfaceFormat GetFormat() const override { return mFormat; }

  bool IsValid() const override;

  already_AddRefed<DataSourceSurface> GetDataSurface() override;

  ID2D1Image* GetImage() { return mImage; }

  void EnsureIndependent() {

    if (!mDrawTarget) return;

    DrawTargetWillChange();

 private:

  friend class DrawTargetD2D1;

  bool EnsureRealizedBitmap();

  // This function is called by the draw target this texture belongs to when

  // it is about to be changed. The texture will be required to make a copy

  // of itself when this happens.

  void DrawTargetWillChange();

  // This will mark the surface as no longer depending on its drawtarget,

  // this may happen on destruction or copying.

  void MarkIndependent();

  RefPtr<ID2D1Image> mImage;

  // This may be null if we were created for a non-bitmap image and have not

  // had a reason yet to realize ourselves.

  RefPtr<ID2D1Bitmap1> mRealizedBitmap;

  RefPtr<ID2D1DeviceContext> mDC;

  // Keep this around to verify whether out image is still valid in the future.

  RefPtr<ID2D1Device> mDevice;

  const SurfaceFormat mFormat;

  const IntSize mSize;

  DrawTargetD2D1* mDrawTarget;

  std::shared_ptr<Mutex> mSnapshotLock;

  bool mOwnsCopy;

};

class DataSourceSurfaceD2D1 : public DataSourceSurface {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceD2D1, override)

  DataSourceSurfaceD2D1(ID2D1Bitmap1* aMappableBitmap, SurfaceFormat aFormat);

  ~DataSourceSurfaceD2D1();

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

  IntSize GetSize() const override;

  SurfaceFormat GetFormat() const override { return mFormat; }

  bool IsValid() const override { return !!mBitmap; }

  uint8_t* GetData() override;

  int32_t Stride() override;

  bool Map(MapType, MappedSurface* aMappedSurface) override;

  void Unmap() override;

 private:

  friend class SourceSurfaceD2DTarget;

  void EnsureMapped();

  mutable RefPtr<ID2D1Bitmap1> mBitmap;

  SurfaceFormat mFormat;

  D2D1_MAPPED_RECT mMap;

  bool mIsMapped;

  bool mImplicitMapped;

};

}  // namespace gfx

}  // namespace mozilla

#endif /* MOZILLA_GFX_SOURCESURFACED2D2TARGET_H_ */