Plumb the partial swap though image transport.

content/common/gpu/image_transport_surface_mac.cc

 // Copyright (c) 2011 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.
 
 #if defined(ENABLE_GPU)
 
 #include "content/common/gpu/image_transport_surface.h"
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 16 matching lines @@
                                  int32 render_view_id,
                                  int32 renderer_id,
                                  int32 command_buffer_id,
                                  gfx::PluginWindowHandle handle);
 
   // GLSurface implementation
   virtual bool Initialize() OVERRIDE;
   virtual void Destroy() OVERRIDE;
   virtual bool IsOffscreen() OVERRIDE;
   virtual bool SwapBuffers() OVERRIDE;
+  virtual bool PostSubBuffer(int x, int y, int width, int height) OVERRIDE;
+  virtual std::string GetExtensions() OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
   virtual bool OnMakeCurrent(gfx::GLContext* context) OVERRIDE;
   virtual unsigned int GetBackingFrameBufferObject() OVERRIDE;
 
  protected:
   // ImageTransportSurface implementation
   virtual void OnNewSurfaceACK(uint64 surface_id,
                                TransportDIB::Handle shm_handle) OVERRIDE;
   virtual void OnBuffersSwappedACK() OVERRIDE;
+  virtual void OnPostSubBufferACK() OVERRIDE;
   virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
 
  private:
   virtual ~IOSurfaceImageTransportSurface() OVERRIDE;
 
   uint32 fbo_id_;
   GLuint texture_id_;
 
   base::mac::ScopedCFTypeRef<CFTypeRef> io_surface_;
@@ skipping 23 matching lines @@
                                     int32 render_view_id,
                                     int32 renderer_id,
                                     int32 command_buffer_id,
                                     gfx::PluginWindowHandle handle);
 
   // GLSurface implementation
   virtual bool Initialize() OVERRIDE;
   virtual void Destroy() OVERRIDE;
   virtual bool IsOffscreen() OVERRIDE;
   virtual bool SwapBuffers() OVERRIDE;
+  virtual std::string GetExtensions() OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
   virtual bool OnMakeCurrent(gfx::GLContext* context) OVERRIDE;
   virtual unsigned int GetBackingFrameBufferObject() OVERRIDE;
 
  protected:
   // ImageTransportSurface implementation
   virtual void OnBuffersSwappedACK() OVERRIDE;
+  virtual void OnPostSubBufferACK() OVERRIDE;
   virtual void OnNewSurfaceACK(uint64 surface_id,
                                TransportDIB::Handle shm_handle) OVERRIDE;
   virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
 
  private:
   virtual ~TransportDIBImageTransportSurface() OVERRIDE;
 
   uint32 fbo_id_;
   GLuint render_buffer_id_;
@@ skipping 113 matching lines @@
   glFlush();
 
   GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params params;
   params.surface_id = io_surface_id_;
   helper_->SendAcceleratedSurfaceBuffersSwapped(params);
 
   helper_->SetScheduled(false);
   return true;
 }
 
+bool IOSurfaceImageTransportSurface::PostSubBuffer(
+    int x, int y, int width, int height) {
+  NOTREACHED();
+  return false;
+}
+
+std::string IOSurfaceImageTransportSurface::GetExtensions() {
+  return gfx::GLSurface::GetExtensions();
+}
+
 gfx::Size IOSurfaceImageTransportSurface::GetSize() {
   return size_;
 }
 
 void IOSurfaceImageTransportSurface::OnBuffersSwappedACK() {
   helper_->SetScheduled(true);
 }
 
+void IOSurfaceImageTransportSurface::OnPostSubBufferACK() {
+  NOTREACHED();
+}
+
 void IOSurfaceImageTransportSurface::OnNewSurfaceACK(
     uint64 surface_id,
     TransportDIB::Handle /* shm_handle */) {
   DCHECK_EQ(io_surface_id_, surface_id);
   helper_->SetScheduled(true);
 }
 
 void IOSurfaceImageTransportSurface::OnResizeViewACK() {
   NOTREACHED();
 }
@@ skipping 178 matching lines @@
   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, previous_fbo_id);
 
   GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params params;
   params.surface_id = next_id_;
   helper_->SendAcceleratedSurfaceBuffersSwapped(params);
 
   helper_->SetScheduled(false);
   return true;
 }
 
+std::string TransportDIBImageTransportSurface::GetExtensions() {
+  return gfx::GLSurface::GetExtensions();
+}
+
 gfx::Size TransportDIBImageTransportSurface::GetSize() {
   return size_;
 }
 
 void TransportDIBImageTransportSurface::OnBuffersSwappedACK() {
   helper_->SetScheduled(true);
 }
 
+void TransportDIBImageTransportSurface::OnPostSubBufferACK() {
+  NOTREACHED();
+}
+
 void TransportDIBImageTransportSurface::OnNewSurfaceACK(
     uint64 surface_id,
     TransportDIB::Handle shm_handle) {
   helper_->SetScheduled(true);
 
   shared_mem_.reset(TransportDIB::Map(shm_handle));
   DCHECK_NE(shared_mem_.get(), static_cast<void*>(NULL));
 }
 
 void TransportDIBImageTransportSurface::OnResizeViewACK() {
@@ skipping 68 matching lines @@
       NOTREACHED();
       return NULL;
   }
   if (surface->Initialize())
     return surface;
   else
     return NULL;
 }
 
 #endif  // defined(USE_GPU)