Allow textures to be moved from one GL context group to another.

content/common/gpu/gpu_channel.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(OS_WIN)
 #include <windows.h>
 #endif
 
 #include "content/common/gpu/gpu_channel.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/process_util.h"
 #include "base/string_util.h"
 #include "content/common/child_process.h"
 #include "content/common/gpu/gpu_channel_manager.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
+#include "gpu/command_buffer/service/mailbox_manager.h"
 #include "ui/gfx/gl/gl_context.h"
 #include "ui/gfx/gl/gl_surface.h"
 
 #if defined(OS_POSIX)
 #include "ipc/ipc_channel_posix.h"
 #endif
 
 namespace {
 // The first time polling a fence, delay some extra time to allow other
 // stubs to process some work, or else the timing of the fences could
 // allow a pattern of alternating fast and slow frames to occur.
 const int64 kHandleMoreWorkPeriodMs = 2;
 const int64 kHandleMoreWorkPeriodBusyMs = 1;
 }
 
 GpuChannel::GpuChannel(GpuChannelManager* gpu_channel_manager,
                        GpuWatchdog* watchdog,
                        gfx::GLShareGroup* share_group,
                        int client_id,
                        bool software)
     : gpu_channel_manager_(gpu_channel_manager),
       client_id_(client_id),
       share_group_(share_group ? share_group : new gfx::GLShareGroup),
+      mailbox_manager_(new gpu::gles2::MailboxManager),
       watchdog_(watchdog),
       software_(software),
       handle_messages_scheduled_(false),
       processed_get_state_fast_(false),
       num_contexts_preferring_discrete_gpu_(0),
       weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
   DCHECK(gpu_channel_manager);
   DCHECK(client_id);
 
   channel_id_ = IPC::Channel::GenerateVerifiedChannelID("gpu");
@@ skipping 131 matching lines @@
 #if defined(ENABLE_GPU)
   WillCreateCommandBuffer(init_params.gpu_preference);
 
   GpuCommandBufferStub* share_group = stubs_.Lookup(init_params.share_group_id);
 
   *route_id = GenerateRouteID();
   scoped_ptr<GpuCommandBufferStub> stub(new GpuCommandBufferStub(
       this,
       share_group,
       window,
+      mailbox_manager_,
       gfx::Size(),
       disallowed_features_,
       init_params.allowed_extensions,
       init_params.attribs,
       init_params.gpu_preference,
       *route_id,
       surface_id,
       watchdog_,
       software_));
   router_.AddRoute(*route_id, stub.get());
@@ skipping 137 matching lines @@
   WillCreateCommandBuffer(init_params.gpu_preference);
 
   GpuCommandBufferStub* share_group = stubs_.Lookup(init_params.share_group_id);
 
   route_id = GenerateRouteID();
 
   scoped_ptr<GpuCommandBufferStub> stub(new GpuCommandBufferStub(
       this,
       share_group,
       gfx::GLSurfaceHandle(),
+      mailbox_manager_.get(),
       size,
       disallowed_features_,
       init_params.allowed_extensions,
       init_params.attribs,
       init_params.gpu_preference,
       route_id,
       0, watchdog_,
       software_));
   router_.AddRoute(route_id, stub.get());
   stubs_.AddWithID(stub.release(), route_id);
@@ skipping 62 matching lines @@
 void GpuChannel::WillCreateCommandBuffer(gfx::GpuPreference gpu_preference) {
   if (gpu_preference == gfx::PreferDiscreteGpu)
     ++num_contexts_preferring_discrete_gpu_;
 }
 
 void GpuChannel::DidDestroyCommandBuffer(gfx::GpuPreference gpu_preference) {
   if (gpu_preference == gfx::PreferDiscreteGpu)
     --num_contexts_preferring_discrete_gpu_;
   DCHECK_GE(num_contexts_preferring_discrete_gpu_, 0);
 }