Ozone integration.

ui/ozone/public/native_pixmap.h

+// Copyright 2014 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_OZONE_PUBLIC_NATIVE_PIXMAP_H_
+#define UI_OZONE_PUBLIC_NATIVE_PIXMAP_H_
+
+#include "base/memory/ref_counted.h"
+#include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/overlay_transform.h"
+
+namespace gfx {
+class Rect;
+class RectF;
+}
+
+namespace ui {
+
+// This represents a buffer that can be directly imported via GL for
+// rendering, or exported via dma-buf fds.
+class NativePixmap : public base::RefCountedThreadSafe<NativePixmap> {
+ public:
+  NativePixmap() {}
+
+  virtual void* /* EGLClientBuffer */ GetEGLClientBuffer() = 0;
+  virtual int GetDmaBufFd() = 0;
+  virtual int GetDmaBufPitch() = 0;
+
+  // Sets the overlay plane to switch to at the next page flip.
+  // |w| specifies the screen to display this overlay plane on.
+  // |plane_z_order| specifies the stacking order of the plane relative to the
+  // main framebuffer located at index 0.
+  // |plane_transform| specifies how the buffer is to be transformed during.
+  // composition.
+  // |buffer| to be presented by the overlay.
+  // |display_bounds| specify where it is supposed to be on the screen.
+  // |crop_rect| specifies the region within the buffer to be placed
+  // inside |display_bounds|. This is specified in texture coordinates, in the
+  // range of [0,1].
+  virtual bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
+                                    int plane_z_order,
+                                    gfx::OverlayTransform plane_transform,
+                                    const gfx::Rect& display_bounds,
+                                    const gfx::RectF& crop_rect) = 0;
+
+ protected:
+  virtual ~NativePixmap() {}
+
+ private:
+  friend class base::RefCountedThreadSafe<NativePixmap>;
+
+  DISALLOW_COPY_AND_ASSIGN(NativePixmap);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PUBLIC_NATIVE_PIXMAP_H_