Revert 111040 - Reland 110355 - Use shared D3D9 texture to transport the compositor's backing buf...

content/common/gpu/image_transport_surface_win.cc

Index: content/common/gpu/image_transport_surface_win.cc
===================================================================
--- content/common/gpu/image_transport_surface_win.cc	(revision 111041)
+++ content/common/gpu/image_transport_surface_win.cc	(working copy)
@@ -1,176 +0,0 @@
-// 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 "content/common/gpu/image_transport_surface.h"
-
-#include "base/bind.h"
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/win/windows_version.h"
-#include "content/common/gpu/gpu_messages.h"
-#include "ui/gfx/gl/gl_bindings.h"
-#include "ui/gfx/gl/gl_context.h"
-#include "ui/gfx/gl/gl_implementation.h"
-#include "ui/gfx/gl/gl_surface_egl.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace {
-
-// We are backed by an Pbuffer offscreen surface through which ANGLE provides
-// a handle to the corresponding render target texture through an extension.
-class PbufferImageTransportSurface
-    : public gfx::GLSurfaceAdapter,
-      public ImageTransportSurface,
-      public base::SupportsWeakPtr<PbufferImageTransportSurface> {
- public:
-  PbufferImageTransportSurface(GpuChannelManager* manager,
-                               int32 render_view_id,
-                               int32 renderer_id,
-                               int32 command_buffer_id);
-
-  // GLSurface implementation
-  virtual bool Initialize();
-  virtual void Destroy();
-  virtual bool IsOffscreen();
-  virtual bool SwapBuffers();
-
- protected:
-  // ImageTransportSurface implementation
-  virtual void OnNewSurfaceACK(uint64 surface_id,
-                               TransportDIB::Handle shm_handle) OVERRIDE;
-  virtual void OnBuffersSwappedACK() OVERRIDE;
-  virtual void OnResizeViewACK() OVERRIDE;
-  virtual void OnResize(gfx::Size size) OVERRIDE;
-
- private:
-  virtual ~PbufferImageTransportSurface();
-  void SendBuffersSwapped();
-
-  scoped_ptr<ImageTransportHelper> helper_;
-
-  DISALLOW_COPY_AND_ASSIGN(PbufferImageTransportSurface);
-};
-
-PbufferImageTransportSurface::PbufferImageTransportSurface(
-    GpuChannelManager* manager,
-    int32 render_view_id,
-    int32 renderer_id,
-    int32 command_buffer_id)
-        : GLSurfaceAdapter(new gfx::PbufferGLSurfaceEGL(false,
-                                                        gfx::Size(1, 1))) {
-  helper_.reset(new ImageTransportHelper(this,
-                                         manager,
-                                         render_view_id,
-                                         renderer_id,
-                                         command_buffer_id,
-                                         gfx::kNullPluginWindow));
-}
-
-PbufferImageTransportSurface::~PbufferImageTransportSurface() {
-  Destroy();
-}
-
-bool PbufferImageTransportSurface::Initialize() {
-  // Only support this path if the GL implementation is ANGLE.
-  // IO surfaces will not work with, for example, OSMesa software renderer
-  // GL contexts.
-  if (gfx::GetGLImplementation() != gfx::kGLImplementationEGLGLES2)
-    return false;
-
-  if (!helper_->Initialize())
-    return false;
-
-  return GLSurfaceAdapter::Initialize();
-}
-
-void PbufferImageTransportSurface::Destroy() {
-  helper_->Destroy();
-  GLSurfaceAdapter::Destroy();
-}
-
-bool PbufferImageTransportSurface::IsOffscreen() {
-  return false;
-}
-
-bool PbufferImageTransportSurface::SwapBuffers() {
-  HANDLE surface_handle = GetShareHandle();
-  if (!surface_handle)
-    return false;
-
-  helper_->DeferToFence(base::Bind(
-      &PbufferImageTransportSurface::SendBuffersSwapped,
-      AsWeakPtr()));
-
-  return true;
-}
-
-void PbufferImageTransportSurface::SendBuffersSwapped() {
-  GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params params;
-  params.surface_id = reinterpret_cast<int64>(GetShareHandle());
-  params.size = GetSize();
-  helper_->SendAcceleratedSurfaceBuffersSwapped(params);
-
-  helper_->SetScheduled(false);
-}
-
-void PbufferImageTransportSurface::OnBuffersSwappedACK() {
-  helper_->SetScheduled(true);
-}
-
-void PbufferImageTransportSurface::OnNewSurfaceACK(
-    uint64 surface_id,
-    TransportDIB::Handle shm_handle) {
-  NOTIMPLEMENTED();
-}
-
-void PbufferImageTransportSurface::OnResizeViewACK() {
-  NOTIMPLEMENTED();
-}
-
-void PbufferImageTransportSurface::OnResize(gfx::Size size) {
-  Resize(size);
-}
-
-}  // namespace anonymous
-
-// static
-scoped_refptr<gfx::GLSurface> ImageTransportSurface::CreateSurface(
-    GpuChannelManager* manager,
-    int32 render_view_id,
-    int32 renderer_id,
-    int32 command_buffer_id,
-    gfx::PluginWindowHandle handle) {
-  scoped_refptr<gfx::GLSurface> surface;
-
-  base::win::OSInfo* os_info = base::win::OSInfo::GetInstance();
-
-  // TODO(apatrick): Enable this once it has settled in the tree.
-  if (false && gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2 &&
-      os_info->version() >= base::win::VERSION_VISTA) {
-    surface = new PbufferImageTransportSurface(manager,
-                                               render_view_id,
-                                               renderer_id,
-                                               command_buffer_id);
-  } else {
-    surface = gfx::GLSurface::CreateViewGLSurface(false, handle);
-    if (!surface.get())
-      return NULL;
-
-    surface = new PassThroughImageTransportSurface(manager,
-                                                   render_view_id,
-                                                   renderer_id,
-                                                   command_buffer_id,
-                                                   surface.get());
-  }
-
-  if (surface->Initialize())
-    return surface;
-  else
-    return NULL;
-}
-
-#endif  // ENABLE_GPU