Quad list IPC infrastructure.

content/renderer/gpu/compositor_thread.cc

 // 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.
 
 #include "content/renderer/gpu/compositor_thread.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
+#include "content/common/view_messages.h"
 #include "content/renderer/gpu/input_event_filter.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebActiveWheelFlingParameters.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositorFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositorInputHandlerClient.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositorInputHandler.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
 using WebKit::WebCompositorInputHandler;
 using WebKit::WebInputEvent;
 
 //------------------------------------------------------------------------------
 
 class CompositorThread::InputHandlerWrapper
     : public WebKit::WebCompositorInputHandlerClient,
       public base::RefCountedThreadSafe<InputHandlerWrapper> {
  public:
   InputHandlerWrapper(CompositorThread* compositor_thread,
                       int routing_id,
+                      IPC::Message::Sender* sender,
                       WebKit::WebCompositorInputHandler* input_handler,
                       scoped_refptr<base::MessageLoopProxy> main_loop,
                       const base::WeakPtr<RenderViewImpl>& render_view_impl)
       : compositor_thread_(compositor_thread),
         routing_id_(routing_id),
+        sender_(sender),
         input_handler_(input_handler),
         main_loop_(main_loop),
         render_view_impl_(render_view_impl) {
     input_handler_->setClient(this);
   }
 
   virtual void transferActiveWheelFlingAnimation(
       const WebKit::WebActiveWheelFlingParameters& params) {
     main_loop_->PostTask(
         FROM_HERE,
@@ skipping 13 matching lines @@
   }
 
   virtual void didHandleInputEvent() {
     compositor_thread_->filter_->DidHandleInputEvent();
   }
 
   virtual void didNotHandleInputEvent(bool send_to_widget) {
     compositor_thread_->filter_->DidNotHandleInputEvent(send_to_widget);
   }
 
+  virtual void sendCompositorFrame(const WebKit::WebCompositorFrame& frame) {
+    std::vector<WebKit::WebCompositorQuad> quads;
+    for (unsigned int i = 0; i < frame.quadList.size(); i++)
+      quads.push_back(frame.quadList[i]);
+
+    CompositorHostMsg_DrawFrame_Params params;
+    params.quads = quads;
+    params.framebuffer_output_rect = frame.framebufferOutputRect;
+    sender_->Send(new CompositorHostMsg_DrawFrame(routing_id_, params));
+  }
+
  private:
   friend class base::RefCountedThreadSafe<InputHandlerWrapper>;
 
   virtual ~InputHandlerWrapper() {
     input_handler_->setClient(NULL);
   }
 
   CompositorThread* compositor_thread_;
   int routing_id_;
+  IPC::Message::Sender* sender_;
   WebKit::WebCompositorInputHandler* input_handler_;
   scoped_refptr<base::MessageLoopProxy> main_loop_;
 
   // Can only be accessed on the main thread.
   base::WeakPtr<RenderViewImpl> render_view_impl_;
 
   DISALLOW_COPY_AND_ASSIGN(InputHandlerWrapper);
 };
 
 //------------------------------------------------------------------------------
 
 CompositorThread::CompositorThread(IPC::Channel::Listener* main_listener)
     : thread_("Compositor") {
   filter_ =
       new InputEventFilter(main_listener,
                            thread_.message_loop()->message_loop_proxy(),
                            base::Bind(&CompositorThread::HandleInputEvent,
                                       base::Unretained(this)));
 }
 
 CompositorThread::~CompositorThread() {
 }
 
 IPC::ChannelProxy::MessageFilter* CompositorThread::GetMessageFilter() const {
   return filter_;
 }
 
 void CompositorThread::AddInputHandler(
-    int routing_id, int input_handler_id,
+    int routing_id, IPC::Message::Sender* sender, int input_handler_id,
     const base::WeakPtr<RenderViewImpl>& render_view_impl) {
   DCHECK_NE(thread_.message_loop(), MessageLoop::current());
 
   thread_.message_loop()->PostTask(
       FROM_HERE,
       base::Bind(&CompositorThread::AddInputHandlerOnCompositorThread,
                  base::Unretained(this),
                  routing_id,
+                 sender,
                  input_handler_id,
                  base::MessageLoopProxy::current(),
                  render_view_impl));
 }
 
 void CompositorThread::AddInputHandlerOnCompositorThread(
-    int routing_id, int input_handler_id,
+    int routing_id, IPC::Message::Sender* sender, int input_handler_id,
     scoped_refptr<base::MessageLoopProxy> main_loop,
     const base::WeakPtr<RenderViewImpl>& render_view_impl) {
 
   DCHECK_EQ(thread_.message_loop(), MessageLoop::current());
 
   WebCompositorInputHandler* input_handler =
       WebCompositorInputHandler::fromIdentifier(input_handler_id);
   if (!input_handler)
     return;
 
   if (input_handlers_.count(routing_id) != 0) {
     // It's valid to call AddInputHandler() for the same routing id with the
     // same input_handler many times, but it's not valid to change the
     // input_handler for a route.
     DCHECK_EQ(input_handlers_[routing_id]->input_handler(), input_handler);
     return;
   }
 
   TRACE_EVENT0("CompositorThread::AddInputHandler", "AddingRoute");
   filter_->AddRoute(routing_id);
   input_handlers_[routing_id] =
       make_scoped_refptr(new InputHandlerWrapper(this,
-          routing_id, input_handler, main_loop, render_view_impl));
+          routing_id, sender, input_handler, main_loop, render_view_impl));
 }
 
 void CompositorThread::RemoveInputHandler(int routing_id) {
   DCHECK_EQ(MessageLoop::current(), thread_.message_loop());
 
   TRACE_EVENT0("CompositorThread::RemoveInputHandler", "RemovingRoute");
 
   filter_->RemoveRoute(routing_id);
   input_handlers_.erase(routing_id);
 }
 
 void CompositorThread::HandleInputEvent(
     int routing_id,
     const WebInputEvent* input_event) {
   DCHECK_EQ(MessageLoop::current(), thread_.message_loop());
 
   InputHandlerMap::iterator it = input_handlers_.find(routing_id);
   if (it == input_handlers_.end()) {
     TRACE_EVENT0("CompositorThread::HandleInputEvent", "NoInputHandlerFound");
     // Oops, we no longer have an interested input handler..
     filter_->DidNotHandleInputEvent(true);
     return;
   }
 
   it->second->input_handler()->handleInputEvent(*input_event);
 }