Add m-esr52 at 52.6.0

1 files changed, 59 insertions, 0 deletions

diff --git a/gfx/layers/ipc/SharedRGBImage.h b/gfx/layers/ipc/SharedRGBImage.h
new file mode 100644
index 000000000..2c6009c19
--- /dev/null
+++ b/gfx/layers/ipc/SharedRGBImage.h
@@ -0,0 +1,59 @@
+/* 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 SHAREDRGBIMAGE_H_
+#define SHAREDRGBIMAGE_H_
+
+#include <stddef.h>                     // for size_t
+#include <stdint.h>                     // for uint8_t
+#include "ImageContainer.h"             // for ISharedImage, Image, etc
+#include "gfxTypes.h"
+#include "mozilla/Attributes.h"         // for override
+#include "mozilla/RefPtr.h"             // for RefPtr
+#include "mozilla/gfx/Point.h"          // for IntSize
+#include "mozilla/gfx/Types.h"          // for SurfaceFormat
+#include "nsCOMPtr.h"                   // for already_AddRefed
+
+namespace mozilla {
+namespace layers {
+
+class ImageClient;
+class TextureClient;
+
+already_AddRefed<Image> CreateSharedRGBImage(ImageContainer* aImageContainer,
+                                             gfx::IntSize aSize,
+                                             gfxImageFormat aImageFormat);
+
+/**
+ * Stores RGB data in shared memory
+ * It is assumed that the image width and stride are equal
+ */
+class SharedRGBImage : public Image
+{
+public:
+  explicit SharedRGBImage(ImageClient* aCompositable);
+
+protected:
+  ~SharedRGBImage();
+
+public:
+  virtual TextureClient* GetTextureClient(KnowsCompositor* aForwarder) override;
+
+  virtual uint8_t* GetBuffer() override;
+
+  gfx::IntSize GetSize() override;
+
+  already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;
+
+  bool Allocate(gfx::IntSize aSize, gfx::SurfaceFormat aFormat);
+private:
+  gfx::IntSize mSize;
+  RefPtr<ImageClient> mCompositable;
+  RefPtr<TextureClient> mTextureClient;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif