Aura: PostSubBuffer implementation for --ui-use-gpu-process

content/common/gpu/image_transport_surface.h

 // Copyright (c) 2012 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 CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_H_
 #define CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_H_
 #pragma once
 
 #if defined(ENABLE_GPU)
 
+#include <vector>
+
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_message.h"
 #include "ui/gfx/gl/gl_surface.h"
+#include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
-#include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/surface/transport_dib.h"
 
 class GpuChannelManager;
 class GpuCommandBufferStub;
 
 struct GpuHostMsg_AcceleratedSurfaceNew_Params;
 struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
 struct GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params;
 struct GpuHostMsg_AcceleratedSurfaceRelease_Params;
 
@@ skipping 32 matching lines @@
   virtual void OnBuffersSwappedACK() = 0;
   virtual void OnPostSubBufferACK() = 0;
   virtual void OnResizeViewACK() = 0;
   virtual void OnResize(gfx::Size size) = 0;
 
   // Creates the appropriate surface depending on the GL implementation.
   static scoped_refptr<gfx::GLSurface>
       CreateSurface(GpuChannelManager* manager,
                     GpuCommandBufferStub* stub,
                     const gfx::GLSurfaceHandle& handle);
+ protected:
+  // Used by certain implements of PostSubBuffer to determine
+  // how much needs to be copied between frames.
+  void GetRegionsToCopy(const gfx::Rect& previous_damage_rect,
+                        const gfx::Rect& new_damage_rect,
+                        std::vector<gfx::Rect>* regions);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(ImageTransportSurface);
 };
 
 class ImageTransportHelper : public IPC::Channel::Listener {
  public:
   // Takes weak pointers to objects that outlive the helper.
   ImageTransportHelper(ImageTransportSurface* surface,
                        GpuChannelManager* manager,
                        GpuCommandBufferStub* stub,
@@ skipping 87 matching lines @@
   gfx::Size new_size_;
   bool transport_;
   bool did_set_swap_interval_;
 
   DISALLOW_COPY_AND_ASSIGN(PassThroughImageTransportSurface);
 };
 
 #endif  // defined(ENABLE_GPU)
 
 #endif  // CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_H_