3D Compositing in <browser>, first draft.

content/common/gpu/gpu_command_buffer_stub.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.
 
 #if defined(ENABLE_GPU)
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 256 matching lines @@
   decoder_.reset(::gpu::gles2::GLES2Decoder::Create(context_group_.get()));
 
   scheduler_.reset(new gpu::GpuScheduler(command_buffer_.get(),
                                          decoder_.get(),
                                          decoder_.get()));
   if (preempt_by_counter_.get())
     scheduler_->SetPreemptByCounter(preempt_by_counter_);
 
   decoder_->set_engine(scheduler_.get());
 
+  printf("initializing command buffer stub; handle is %s and has textures %u and %u\n", handle_.is_null() ? "null" : "not null", handle_.parent_texture_id[0], handle_.parent_texture_id[1]);

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

Delete once you're done debugging please. 

   if (!handle_.is_null()) {
 #if defined(OS_MACOSX) || defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
     if (software_) {
       DLOG(ERROR) << "No software support.\n";
       OnInitializeFailed(reply_message);
       return;
     }
 #endif
 
     surface_ = ImageTransportSurface::CreateSurface(
@@ skipping 454 matching lines @@
     const GpuMemoryAllocation& allocation) {
   Send(new GpuCommandBufferMsg_SetMemoryAllocation(route_id_, allocation));
   // This can be called outside of OnMessageReceived, so the context needs to be
   // made current before calling methods on the surface.
   if (!surface_ || !MakeCurrent())
     return;
   surface_->SetFrontbufferAllocation(allocation.suggest_have_frontbuffer);
 }
 
 #endif  // defined(ENABLE_GPU)