1 files changed, 78 insertions, 0 deletions
diff --git a/gfx/2d/SourceSurfaceSkia.h b/gfx/2d/SourceSurfaceSkia.h
new file mode 100644
index 0000000000..e0f085d2d4
--- /dev/null
+++ b/gfx/2d/SourceSurfaceSkia.h
@@ -0,0 +1,78 @@
+/* -*- 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_SOURCESURFACESKIA_H_
+#define MOZILLA_GFX_SOURCESURFACESKIA_H_
+
+#include "2D.h"
+#include "mozilla/Mutex.h"
+#include "skia/include/core/SkRefCnt.h"
+
+class SkImage;
+class SkSurface;
+
+namespace mozilla {
+
+namespace gfx {
+
+class DrawTargetSkia;
+class SnapshotLock;
+
+class SourceSurfaceSkia : public DataSourceSurface {
+ public:
+  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DataSourceSurfaceSkia, override)
+
+  SourceSurfaceSkia();
+  virtual ~SourceSurfaceSkia();
+
+  SurfaceType GetType() const override { return SurfaceType::SKIA; }
+  IntSize GetSize() const override;
+  SurfaceFormat GetFormat() const override;
+
+  void GiveSurface(SkSurface* aSurface);
+
+  sk_sp<SkImage> GetImage(Maybe<MutexAutoLock>* aLock);
+
+  bool InitFromData(unsigned char* aData, const IntSize& aSize, int32_t aStride,
+                    SurfaceFormat aFormat);
+
+  bool InitFromImage(const sk_sp<SkImage>& aImage,
+                     SurfaceFormat aFormat = SurfaceFormat::UNKNOWN,
+                     DrawTargetSkia* aOwner = nullptr);
+
+  already_AddRefed<SourceSurface> ExtractSubrect(const IntRect& aRect) override;
+
+  uint8_t* GetData() override;
+
+  /**
+   * The caller is responsible for ensuring aMappedSurface is not null.
+   */
+  bool Map(MapType, MappedSurface* aMappedSurface) override;
+
+  void Unmap() override;
+
+  int32_t Stride() override { return mStride; }
+
+ private:
+  friend class DrawTargetSkia;
+
+  void DrawTargetWillChange();
+
+  sk_sp<SkImage> mImage;
+  // This keeps a surface alive if needed because its DrawTarget has gone away.
+  sk_sp<SkSurface> mSurface;
+  SurfaceFormat mFormat;
+  IntSize mSize;
+  int32_t mStride;
+  Atomic<DrawTargetSkia*> mDrawTarget;
+  Mutex mChangeMutex MOZ_UNANNOTATED;
+  bool mIsMapped;
+};
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif /* MOZILLA_GFX_SOURCESURFACESKIA_H_ */