3D Compositing in <browser>, first draft.

content/browser/browser_plugin/old/browser_plugin_host_helper.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/browser/browser_plugin/old/browser_plugin_host_helper.h"
 
 #include "content/browser/browser_plugin/old/browser_plugin_host.h"
 #include "content/common/browser_plugin_messages.h"
+#include "content/common/gpu/gpu_messages.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "ui/gfx/size.h"
+#include "content/browser/renderer_host/render_widget_host_view_base.h"
+#include "content/browser/renderer_host/render_widget_host_impl.h"

[Fady Samuel, 2012/07/06 15:14:44]

Given you're now applying these changes to the new design, changes to this file
should be unnecessary.

 
 namespace content {
 
+class CrappyCompositingDelegate : public RenderWidgetHostViewBase::CompositingDelegate {

[Fady Samuel, 2012/07/06 15:14:44]

How about we simply call this BrowserPluginCompositingDelegate :-)

[scshunt, 2012/07/06 16:39:03]

Probably a good plan.

+ public:
+  virtual gfx::GLSurfaceHandle GetCompositingSurface() {
+    gfx::GLSurfaceHandle handle = gfx::GLSurfaceHandle(gfx::kNullPluginWindow, true);
+    handle.parent_gpu_process_id = helper_->surface_params_.gpu_process_id;
+    handle.parent_client_id = helper_->surface_params_.client_id;
+    handle.parent_context_id = helper_->surface_params_.context_id;
+    handle.parent_texture_id[0] = helper_->surface_params_.texture_id[0];
+    handle.parent_texture_id[1] = helper_->surface_params_.texture_id[1];
+    handle.sync_point = helper_->surface_params_.sync_point;
+    printf("CrappyCompositingDelegate is giving textures %u and %u\n", handle.parent_texture_id[0], handle.parent_texture_id[1]);
+    return handle;
+  }
+  virtual bool ResizeNeedsNewSurface() { return false;}
+  BrowserPluginHostHelper* helper_; 
+  CrappyCompositingDelegate(BrowserPluginHostHelper* helper)
+    : helper_(helper) {
+  }
+  virtual void AcceleratedSurfaceBuffersSwapped(
+      const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params,
+      int gpu_host_id) OVERRIDE {
+    printf("CrappyCompositingDelegate is acknowledging a full swap\n");
+    RenderWidgetHostImpl::AcknowledgeBufferPresent(params.route_id, gpu_host_id, 0);
+  }
+  virtual void AcceleratedSurfacePostSubBuffer(
+      const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
+      int gpu_host_id) OVERRIDE {
+    printf("CrappyCompositingDelegate is acknowledging a partial swap\n");
+    RenderWidgetHostImpl::AcknowledgeBufferPresent(params.route_id, gpu_host_id, 0);
+  }
+  virtual void AcceleratedSurfaceNew(
+      int32 width_in_pixel, int32 height_in_pixel, uint64* surface_handle, TransportDIB::Handle* shm_handle) {
+    printf("CrappyCompositingDelegate is making a new surface\n");
+  }
+  virtual void AcceleratedSurfaceRelease(
+      uint64 surface_handle) {
+    printf("CrappyCompositingDelegate is releasing a surface\n");
+  }
+};
+
 BrowserPluginHostHelper::BrowserPluginHostHelper(
     BrowserPluginHost* browser_plugin_host,
-    RenderViewHost* render_view_host)
+    RenderViewHost* render_view_host,
+    const BrowserPluginHostMsg_Surface_Params& params)
     : RenderViewHostObserver(render_view_host),
-      browser_plugin_host_(browser_plugin_host) {
+      browser_plugin_host_(browser_plugin_host),
+      surface_params_(params) {
+  printf("Constructing helper...");
+  if (browser_plugin_host->embedder_render_process_host()) {
+    printf(" in guest\n");
+    static_cast<RenderWidgetHostViewBase*>(render_view_host->GetView())->SetCompositingDelegate(scoped_ptr<RenderWidgetHostViewBase::CompositingDelegate>(new CrappyCompositingDelegate(this)).Pass());
+  } else {
+    printf(" not in guest\n");
+  }
 }
 
 BrowserPluginHostHelper::~BrowserPluginHostHelper() {
 }
 
 
 bool BrowserPluginHostHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(BrowserPluginHostHelper, message)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ConnectToChannel,
                         OnConnectToChannel)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_NavigateFromEmbedder,
                         OnNavigateGuestFromEmbedder)
     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ResizeGuest, OnResizeGuest)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void BrowserPluginHostHelper::OnConnectToChannel(
     const IPC::ChannelHandle& channel_handle) {
   browser_plugin_host_->ConnectEmbedderToChannel(
       render_view_host(),
       channel_handle);
 }
 
 void BrowserPluginHostHelper::OnNavigateGuestFromEmbedder(
     int32 instance_id,
     long long frame_id,
-    const std::string& src) {
+    const std::string& src,
+    const BrowserPluginHostMsg_Surface_Params& params) {
   browser_plugin_host_->NavigateGuestFromEmbedder(
       render_view_host(),
       instance_id,
       frame_id,
-      src);
+      src,
+      params);
 }
 
 void BrowserPluginHostHelper::OnResizeGuest(int width, int height) {
   render_view_host()->GetView()->SetSize(gfx::Size(width, height));
 }
 
 }  // namespace content