gpu: reference target surfaces through a globally unique surface id.

content/common/gpu/image_transport_surface_win.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 "content/common/gpu/image_transport_surface.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 13 matching lines @@
 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 client_id,
-                               int32 command_buffer_id);
+                               GpuCommandBufferStub* stub);
 
   // gfx::GLSurface implementation
   virtual bool Initialize() OVERRIDE;
   virtual void Destroy() OVERRIDE;
   virtual bool IsOffscreen() OVERRIDE;
   virtual bool SwapBuffers() OVERRIDE;
   virtual bool PostSubBuffer(int x, int y, int width, int height) OVERRIDE;
   virtual std::string GetExtensions() OVERRIDE;
   virtual void SetVisible(bool visible) OVERRIDE;
 
@@ skipping 16 matching lines @@
   // Size to resize to when the surface becomes visible.
   gfx::Size visible_size_;
 
   scoped_ptr<ImageTransportHelper> helper_;
 
   DISALLOW_COPY_AND_ASSIGN(PbufferImageTransportSurface);
 };
 
 PbufferImageTransportSurface::PbufferImageTransportSurface(
     GpuChannelManager* manager,
-    int32 render_view_id,
-    int32 client_id,
-    int32 command_buffer_id)
-        : GLSurfaceAdapter(new gfx::PbufferGLSurfaceEGL(false,
-                                                        gfx::Size(1, 1))),
-          is_visible_(true) {
+    GpuCommandBufferStub* stub)
+    : GLSurfaceAdapter(new gfx::PbufferGLSurfaceEGL(false, gfx::Size(1, 1))),
+      is_visible_(true) {
   helper_.reset(new ImageTransportHelper(this,
                                          manager,
-                                         render_view_id,
-                                         client_id,
-                                         command_buffer_id,
+                                         stub,
                                          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
@@ skipping 85 matching lines @@
     Resize(size);
 
   visible_size_ = size;
 }
 
 }  // namespace anonymous
 
 // static
 scoped_refptr<gfx::GLSurface> ImageTransportSurface::CreateSurface(
     GpuChannelManager* manager,
-    int32 render_view_id,
-    int32 client_id,
-    int32 command_buffer_id,
+    GpuCommandBufferStub* stub,
     gfx::PluginWindowHandle handle) {
   scoped_refptr<gfx::GLSurface> surface;
 
   if (gfx::GetGLImplementation() == gfx::kGLImplementationEGLGLES2 &&
       !CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableImageTransportSurface)) {
     const char* extensions = eglQueryString(eglGetDisplay(EGL_DEFAULT_DISPLAY),
                                             EGL_EXTENSIONS);
     if (strstr(extensions, "EGL_ANGLE_query_surface_pointer") &&
         strstr(extensions, "EGL_ANGLE_surface_d3d_texture_2d_share_handle")) {
-      surface = new PbufferImageTransportSurface(manager,
-                                                 render_view_id,
-                                                 client_id,
-                                                 command_buffer_id);
+      surface = new PbufferImageTransportSurface(manager, stub);
     }
   }
 
   if (!surface.get()) {
     surface = gfx::GLSurface::CreateViewGLSurface(false, handle);
     if (!surface.get())
       return NULL;
 
     surface = new PassThroughImageTransportSurface(manager,
-                                                   render_view_id,
-                                                   client_id,
-                                                   command_buffer_id,
+                                                   stub,
                                                    surface.get());
   }
 
   if (surface->Initialize())
     return surface;
   else
     return NULL;
 }
 
 #endif  // ENABLE_GPU