Use shared D3D9 texture to transport the compositor's backing buffer to the browser...

content/common/gpu/gpu_command_buffer_stub.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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/shared_memory.h"
 #include "build/build_config.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_channel_manager.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/gpu/gpu_watchdog.h"
+#include "content/common/gpu/image_transport_surface.h"
 #include "gpu/command_buffer/common/constants.h"
+#include "ui/gfx/gl/gl_bindings.h"
 #include "ui/gfx/gl/gl_switches.h"
 
-#if defined(OS_MACOSX) || defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
-#include "content/common/gpu/image_transport_surface.h"
-#endif
-
 GpuCommandBufferStub::GpuCommandBufferStub(
     GpuChannel* channel,
     GpuCommandBufferStub* share_group,
     gfx::PluginWindowHandle handle,
     const gfx::Size& size,
     const gpu::gles2::DisallowedFeatures& disallowed_features,
     const std::string& allowed_extensions,
     const std::vector<int32>& attribs,
     gfx::GpuPreference gpu_preference,
     int32 route_id,
@@ skipping 84 matching lines @@
 }
 
 bool GpuCommandBufferStub::Send(IPC::Message* message) {
   return channel_->Send(message);
 }
 
 bool GpuCommandBufferStub::IsScheduled() {
   return !scheduler_.get() || scheduler_->IsScheduled();
 }
 
+void GpuCommandBufferStub::SetSwapInterval() {
+#if !defined(OS_MACOSX) && !defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
+  // Set up swap interval for onscreen contexts.
+  if (!surface_->IsOffscreen()) {
+    decoder_->MakeCurrent();
+    if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableGpuVsync))
+      context_->SetSwapInterval(0);
+    else
+      context_->SetSwapInterval(1);
+  }
+#endif
+}
+
 void GpuCommandBufferStub::Destroy() {
   // The scheduler has raw references to the decoder and the command buffer so
   // destroy it before those.
   scheduler_.reset();
 
   if (decoder_.get()) {
     decoder_->Destroy();
     decoder_.reset();
   }
 
@@ skipping 41 matching lines @@
                                          NULL));
 
   decoder_->set_engine(scheduler_.get());
 
   if (handle_) {
 #if defined(OS_MACOSX) || defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
     if (software_) {
       OnInitializeFailed(reply_message);
       return;
     }
+#endif
 
     surface_ = ImageTransportSurface::CreateSurface(
         channel_->gpu_channel_manager(),
         render_view_id_,
         renderer_id_,
         route_id_,
         handle_);
-#elif defined(OS_WIN) || defined(OS_LINUX)
-    surface_ = gfx::GLSurface::CreateViewGLSurface(software_, handle_);
-#endif
   } else {
     surface_ = gfx::GLSurface::CreateOffscreenGLSurface(software_,
                                                         gfx::Size(1, 1));
   }
 
   if (!surface_.get()) {
     // Ensure the decoder is not destroyed if it is not initialized.
     decoder_.reset();
 
     DLOG(ERROR) << "Failed to create surface.\n";
@@ skipping 38 matching lines @@
   SetSwapInterval();
 
   command_buffer_->SetPutOffsetChangeCallback(
       NewCallback(scheduler_.get(),
                   &gpu::GpuScheduler::PutChanged));
   command_buffer_->SetParseErrorCallback(
       NewCallback(this, &GpuCommandBufferStub::OnParseError));
   scheduler_->SetScheduledCallback(
       NewCallback(channel_, &GpuChannel::OnScheduled));
 
-  // On platforms that use an ImageTransportSurface, the surface
-  // handles co-ordinating the resize with the browser process. The
-  // surface sets it's own resize callback, so we shouldn't do it here.
-#if !defined(OS_MACOSX) && !defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
-  if (handle_ != gfx::kNullPluginWindow) {
-    decoder_->SetResizeCallback(
-        NewCallback(this, &GpuCommandBufferStub::OnResize));
-  }
-#endif
-
   if (watchdog_) {
     scheduler_->SetCommandProcessedCallback(
         NewCallback(this, &GpuCommandBufferStub::OnCommandProcessed));
   }
 
   if (parent_stub_for_initialization_) {
     decoder_->SetParent(parent_stub_for_initialization_->decoder_.get(),
                         parent_texture_for_initialization_);
     parent_stub_for_initialization_.reset();
     parent_texture_for_initialization_ = 0;
@@ skipping 146 matching lines @@
                                                           transfer_buffer,
                                                           size);
   Send(reply_message);
 }
 
 void GpuCommandBufferStub::OnCommandProcessed() {
   if (watchdog_)
     watchdog_->CheckArmed();
 }
 
-void GpuCommandBufferStub::OnResize(gfx::Size size) {
-  if (handle_ == gfx::kNullPluginWindow)
-    return;
-
-#if defined(TOOLKIT_USES_GTK) && !defined(UI_COMPOSITOR_IMAGE_TRANSPORT) || \
-    defined(OS_WIN)
-  GpuChannelManager* gpu_channel_manager = channel_->gpu_channel_manager();
-
-  // On Windows, Linux, we need to coordinate resizing of onscreen
-  // contexts with the resizing of the actual OS-level window. We do this by
-  // sending a resize message to the browser process and descheduling the
-  // context until the ViewResized message comes back in reply.
-  // Send the resize message if needed
-  gpu_channel_manager->Send(
-      new GpuHostMsg_ResizeView(renderer_id_,
-                                render_view_id_,
-                                route_id_,
-                                size));
-
-  scheduler_->SetScheduled(false);
-#endif
-}
-
-void GpuCommandBufferStub::ViewResized() {
-#if defined(TOOLKIT_USES_GTK) && !defined(UI_COMPOSITOR_IMAGE_TRANSPORT) || \
-    defined(OS_WIN)
-  DCHECK(handle_ != gfx::kNullPluginWindow);
-  scheduler_->SetScheduled(true);
-#endif
-
-#if defined(OS_WIN)
-  // Recreate the view surface to match the window size. Swap chains do not
-  // automatically resize with window size with D3D.
-  context_->ReleaseCurrent(surface_.get());
-  if (surface_.get()) {
-    surface_->Destroy();
-    surface_->Initialize();
-    SetSwapInterval();
-  }
-#endif
-}
-
 void GpuCommandBufferStub::ReportState() {
   gpu::CommandBuffer::State state = command_buffer_->GetState();
   if (state.error == gpu::error::kLostContext &&
       gfx::GLContext::LosesAllContextsOnContextLost()) {
     channel_->LoseAllContexts();
   } else {
     IPC::Message* msg = new GpuCommandBufferMsg_UpdateState(route_id_, state);
     msg->set_unblock(true);
     Send(msg);
   }
 }
 
-void GpuCommandBufferStub::SetSwapInterval() {
-#if !defined(OS_MACOSX) && !defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
-  // Set up swap interval for onscreen contexts.
-  if (!surface_->IsOffscreen()) {
-    decoder_->MakeCurrent();
-    if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableGpuVsync))
-      context_->SetSwapInterval(0);
-    else
-      context_->SetSwapInterval(1);
-  }
-#endif
-}
-
 void GpuCommandBufferStub::OnCreateVideoDecoder(
     media::VideoDecodeAccelerator::Profile profile,
     IPC::Message* reply_message) {
   int decoder_route_id = channel_->GenerateRouteID();
   GpuCommandBufferMsg_CreateVideoDecoder::WriteReplyParams(
       reply_message, decoder_route_id);
   GpuVideoDecodeAccelerator* decoder =
       new GpuVideoDecodeAccelerator(this, decoder_route_id, this);
   video_decoders_.AddWithID(decoder, decoder_route_id);
   channel_->AddRoute(decoder_route_id, decoder);
   decoder->Initialize(profile, reply_message);
 }
 
 void GpuCommandBufferStub::OnDestroyVideoDecoder(int decoder_route_id) {
   channel_->RemoveRoute(decoder_route_id);
   video_decoders_.Remove(decoder_route_id);
 }
 
 void GpuCommandBufferStub::OnSetSurfaceVisible(bool visible) {
   surface_->SetVisible(visible);
 }
 
 #endif  // defined(ENABLE_GPU)