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ui/gfx/ozone/dri/scanout_surface.h

Index: ui/gfx/ozone/dri/scanout_surface.h
diff --git a/ui/gfx/ozone/dri/scanout_surface.h b/ui/gfx/ozone/dri/scanout_surface.h
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index 0000000000000000000000000000000000000000..b4795f4f52ebdcc394c582080667e84ff4dfbddb
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+++ b/ui/gfx/ozone/dri/scanout_surface.h
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+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_GFX_OZONE_DRI_SCANOUT_SURFACE_H_
+#define UI_GFX_OZONE_DRI_SCANOUT_SURFACE_H_
+
+#include <stdint.h>
+
+#include "base/basictypes.h"
+
+namespace gfx {
+
+// Interface for a surface that can be scanned out to a monitor. It will store
+// the internal state associated with the drawing surface associated with it.
+// ScanoutSurface also performs all the needed operations to initialize and
+// update the drawing surface.
+class ScanoutSurface {
+ public:
+  ScanoutSurface() {}
+  virtual ~ScanoutSurface() {}
+
+  // Used to initialize the surface object. This involves creating the
+  // underlying buffers and initializing them.
+  // Returns true if successful, false otherwise.
+  virtual bool Initialize() = 0;
+
+  // Returns the ID of the current backbuffer.
+  virtual uint32_t GetFramebufferId() const = 0;
+
+  // Update the front buffer pointer and release the old front buffer.
+  virtual void SwapBuffers() = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScanoutSurface);
+};
+
+}  // namespace gfx
+
+#endif  // UI_GFX_OZONE_DRI_SCANOUT_SURFACE_H_