ozone: gbm: Add overlay support

ui/ozone/platform/dri/dri_wrapper.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_PLATFORM_DRI_DRI_WRAPPER_H_
 #define UI_OZONE_PLATFORM_DRI_DRI_WRAPPER_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
+#include "ui/gfx/overlay_transform.h"
+#include "ui/gfx/rect.h"
+#include "ui/gfx/rect_f.h"
 #include "ui/ozone/platform/dri/scoped_drm_types.h"
 
 typedef struct _drmEventContext drmEventContext;
 typedef struct _drmModeModeInfo drmModeModeInfo;
 
 namespace ui {
 
 // Wraps DRM calls into a nice interface. Used to provide different
 // implementations of the DRM calls. For the actual implementation the DRM API
 // would be called. In unit tests this interface would be stubbed.
@@ skipping 39 matching lines @@
   // Get the DRM details associated with |framebuffer|.
   virtual ScopedDrmFramebufferPtr GetFramebuffer(uint32_t framebuffer);
 
   // Schedules a pageflip for CRTC |crtc_id|. This function will return
   // immediately. Upon completion of the pageflip event, the CRTC will be
   // displaying the buffer with ID |framebuffer| and will have a DRM event
   // queued on |fd_|. |data| is a generic pointer to some information the user
   // will receive when processing the pageflip event.
   virtual bool PageFlip(uint32_t crtc_id, uint32_t framebuffer, void* data);
 
+  // Schedule an overlay to be show during the page flip for CRTC |crtc_id|.
+  // |source| location from |framebuffer| will be shown on overlay
+  // |overlay_plane|, in the bounds specified by |location| on the screen.
+  virtual bool PageFlipOverlay(uint32_t crtc_id,
+                               uint32_t framebuffer,
+                               const gfx::Rect& location,
+                               const gfx::RectF& source,
+                               int overlay_plane);
+
   // Returns the property with name |name| associated with |connector|. Returns
   // NULL if property not found. If the returned value is valid, it must be
   // released using FreeProperty().
   virtual ScopedDrmPropertyPtr GetProperty(drmModeConnector* connector,
                                            const char* name);
 
   // Sets the value of property with ID |property_id| to |value|. The property
   // is applied to the connector with ID |connector_id|.
   virtual bool SetProperty(uint32_t connector_id,
                            uint32_t property_id,
@@ skipping 26 matching lines @@
   // be performed using this FD.
   int fd_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DriWrapper);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRI_DRI_WRAPPER_H_