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

content/common/gpu/image_transport_surface_linux.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 "content/common/gpu/image_transport_surface.h"
 
 // This conflicts with the defines in Xlib.h and must come first.
 #include "content/common/gpu/gpu_messages.h"
@@ skipping 58 matching lines @@
   virtual gfx::Size GetSize() OVERRIDE;
   virtual bool OnMakeCurrent(gfx::GLContext* context) OVERRIDE;
   virtual unsigned int GetBackingFrameBufferObject() OVERRIDE;
   virtual void SetVisible(bool visible) OVERRIDE;
 
  protected:
   // ImageTransportSurface implementation
   virtual void OnNewSurfaceACK(
       uint64 surface_id, TransportDIB::Handle surface_handle) OVERRIDE;
   virtual void OnBuffersSwappedACK() OVERRIDE;
+  virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
 
  private:
   virtual ~EGLImageTransportSurface() OVERRIDE;
   void ReleaseSurface(scoped_refptr<EGLAcceleratedSurface>* surface);
 
   uint32 fbo_id_;
 
   scoped_refptr<EGLAcceleratedSurface> back_surface_;
   scoped_refptr<EGLAcceleratedSurface> front_surface_;
@@ skipping 21 matching lines @@
   virtual void Destroy() OVERRIDE;
   virtual bool SwapBuffers() OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
   virtual bool OnMakeCurrent(gfx::GLContext* context) OVERRIDE;
 
  protected:
   // ImageTransportSurface implementation:
   virtual void OnNewSurfaceACK(
       uint64 surface_id, TransportDIB::Handle surface_handle) OVERRIDE;
   virtual void OnBuffersSwappedACK() OVERRIDE;
+  virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
 
  private:
   virtual ~GLXImageTransportSurface();
 
   // Tell the browser to release the surface.
   void ReleaseSurface();
 
   XID dummy_parent_;
   gfx::Size size_;
@@ skipping 25 matching lines @@
   virtual void Destroy() OVERRIDE;
   virtual bool IsOffscreen() OVERRIDE;
   virtual bool SwapBuffers() OVERRIDE;
   virtual gfx::Size GetSize() OVERRIDE;
 
  protected:
   // ImageTransportSurface implementation:
   virtual void OnNewSurfaceACK(
       uint64 surface_id, TransportDIB::Handle surface_handle) OVERRIDE;
   virtual void OnBuffersSwappedACK() OVERRIDE;
+  virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
 
  private:
   virtual ~OSMesaImageTransportSurface();
 
   // Tell the browser to release the surface.
   void ReleaseSurface();
 
   scoped_ptr<TransportDIB> shared_mem_;
   uint32 shared_id_;
@@ skipping 187 matching lines @@
 void EGLImageTransportSurface::OnNewSurfaceACK(
     uint64 surface_id, TransportDIB::Handle /*surface_handle*/) {
   DCHECK_EQ(back_surface_->pixmap(), surface_id);
   helper_->SetScheduled(true);
 }
 
 void EGLImageTransportSurface::OnBuffersSwappedACK() {
   helper_->SetScheduled(true);
 }
 
+
+void EGLImageTransportSurface::OnResizeViewACK() {
+}
+
 GLXImageTransportSurface::GLXImageTransportSurface(
     GpuChannelManager* manager,
     int32 render_view_id,
     int32 renderer_id,
     int32 command_buffer_id)
       : gfx::NativeViewGLSurfaceGLX(),
         dummy_parent_(0),
         size_(1, 1),
         bound_(false),
         made_current_(false) {
   helper_.reset(new ImageTransportHelper(this,
                                          manager,
                                          render_view_id,
                                          renderer_id,
                                          command_buffer_id,
                                          gfx::kNullPluginWindow));
 }
 
 GLXImageTransportSurface::~GLXImageTransportSurface() {
   Destroy();
 }
 
 bool GLXImageTransportSurface::Initialize() {
   // Create a dummy window to host the real window.
-  Display* dpy = gfx::GLSurfaceGLX::GetDisplay();
+  Display* dpy = static_cast<Display*>(GetDisplay());
   XSetWindowAttributes swa;
   swa.event_mask = StructureNotifyMask;
   swa.override_redirect = True;
   dummy_parent_ = XCreateWindow(
       dpy,
       RootWindow(dpy, DefaultScreen(dpy)),  // parent
       -100, -100, 1, 1,
       0,  // border width
       CopyFromParent,  // depth
       InputOutput,
@@ skipping 25 matching lines @@
   if (!helper_->Initialize())
     return false;
   return gfx::NativeViewGLSurfaceGLX::Initialize();
 }
 
 void GLXImageTransportSurface::Destroy() {
   if (bound_)
     ReleaseSurface();
 
   if (window_) {
-    Display* dpy = gfx::GLSurfaceGLX::GetDisplay();
+    Display* dpy = static_cast<Display*>(GetDisplay());
     XDestroyWindow(dpy, window_);
     XDestroyWindow(dpy, dummy_parent_);
   }
 
   helper_->Destroy();
   gfx::NativeViewGLSurfaceGLX::Destroy();
 }
 
 void GLXImageTransportSurface::ReleaseSurface() {
   DCHECK(bound_);
   GpuHostMsg_AcceleratedSurfaceRelease_Params params;
   params.identifier = window_;
   helper_->SendAcceleratedSurfaceRelease(params);
 }
 
 void GLXImageTransportSurface::OnResize(gfx::Size size) {
   size_ = size;
   if (bound_) {
     ReleaseSurface();
     bound_ = false;
   }
 
-  Display* dpy = gfx::GLSurfaceGLX::GetDisplay();
+  Display* dpy = static_cast<Display*>(GetDisplay());
   XResizeWindow(dpy, window_, size_.width(), size_.height());
   XFlush(dpy);
 
   GpuHostMsg_AcceleratedSurfaceNew_Params params;
   params.width = size_.width();
   params.height = size_.height();
   params.surface_id = window_;
   helper_->SendAcceleratedSurfaceNew(params);
 
   helper_->SetScheduled(false);
@@ skipping 13 matching lines @@
 
 gfx::Size GLXImageTransportSurface::GetSize() {
   return size_;
 }
 
 bool GLXImageTransportSurface::OnMakeCurrent(gfx::GLContext* context) {
   if (made_current_)
     return true;
 
   // Check for driver support.
-  Display* dpy = gfx::GLSurfaceGLX::GetDisplay();
+  Display* dpy = static_cast<Display*>(GetDisplay());
   int event_base, error_base;
   if (XCompositeQueryExtension(dpy, &event_base, &error_base)) {
     int major = 0, minor = 2;
     XCompositeQueryVersion(dpy, &major, &minor);
     if (major == 0 && minor < 2) {
       LOG(ERROR) << "Pixmap from window not supported.";
       return false;
     }
   }
 
   context->SetSwapInterval(0);
 
   made_current_ = true;
   return true;
 }
 
 void GLXImageTransportSurface::OnNewSurfaceACK(
     uint64 surface_id, TransportDIB::Handle /*surface_handle*/) {
   DCHECK(!bound_);
   bound_ = true;
   helper_->SetScheduled(true);
 }
 
 void GLXImageTransportSurface::OnBuffersSwappedACK() {
   helper_->SetScheduled(true);
 }
 
+void GLXImageTransportSurface::OnResizeViewACK() {
+}
+
 OSMesaImageTransportSurface::OSMesaImageTransportSurface(
     GpuChannelManager* manager,
     int32 render_view_id,
     int32 renderer_id,
     int32 command_buffer_id)
   : gfx::GLSurfaceOSMesa(OSMESA_RGBA, gfx::Size(1, 1)),
     size_(gfx::Size(1, 1)) {
   helper_.reset(new ImageTransportHelper(this,
                                          manager,
                                          render_view_id,
@@ skipping 58 matching lines @@
 
 void OSMesaImageTransportSurface::OnNewSurfaceACK(
     uint64 surface_id, TransportDIB::Handle surface_handle) {
   shared_id_ = surface_id;
   shared_mem_.reset(TransportDIB::Map(surface_handle));
   DCHECK_NE(shared_mem_.get(), static_cast<void*>(NULL));
 
   helper_->SetScheduled(true);
 }
 
+void OSMesaImageTransportSurface::OnResizeViewACK() {
+}
+
 bool OSMesaImageTransportSurface::SwapBuffers() {
   DCHECK_NE(shared_mem_.get(), static_cast<void*>(NULL));
 
   // Copy the OSMesa buffer to the shared memory
   glFinish();
   memcpy(shared_mem_->memory(), GetHandle(), size_.GetArea() * 4);
 
   GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params params;
   params.surface_id = shared_id_;
   helper_->SendAcceleratedSurfaceBuffersSwapped(params);
@@ skipping 11 matching lines @@
 }
 
 }  // namespace
 
 // static
 scoped_refptr<gfx::GLSurface> ImageTransportSurface::CreateSurface(
     GpuChannelManager* manager,
     int32 render_view_id,
     int32 renderer_id,
     int32 command_buffer_id,
-    gfx::PluginWindowHandle /* handle */) {
+    gfx::PluginWindowHandle handle) {
   scoped_refptr<gfx::GLSurface> surface;
+#if defined(UI_COMPOSITOR_IMAGE_TRANSPORT)
   switch (gfx::GetGLImplementation()) {
     case gfx::kGLImplementationDesktopGL:
       surface = new GLXImageTransportSurface(manager,
                                              render_view_id,
                                              renderer_id,
                                              command_buffer_id);
       break;
     case gfx::kGLImplementationEGLGLES2:
       surface = new EGLImageTransportSurface(manager,
                                              render_view_id,
                                              renderer_id,
                                              command_buffer_id);
       break;
     case gfx::kGLImplementationOSMesaGL:
       surface = new OSMesaImageTransportSurface(manager,
                                                 render_view_id,
                                                 renderer_id,
                                                 command_buffer_id);
       break;
     default:
       NOTREACHED();
       return NULL;
   }
+#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());
+#endif
   if (surface->Initialize())
     return surface;
   else
     return NULL;
 }
 
 #endif  // defined(USE_GPU)