1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #import <OpenGL/OpenGL.h> 6 7 #include "content/plugin/webplugin_accelerated_surface_proxy_mac.h" 8 9 #include "base/bind.h" 10 #include "base/command_line.h" 11 #include "content/plugin/webplugin_proxy.h" 12 #include "content/public/common/content_switches.h" 13 #include "ui/gl/io_surface_support_mac.h" 14 #include "ui/surface/accelerated_surface_mac.h" 15 #include "ui/surface/transport_dib.h" 16 17 namespace content { 18 19 WebPluginAcceleratedSurfaceProxy* WebPluginAcceleratedSurfaceProxy::Create( 20 WebPluginProxy* plugin_proxy, 21 gfx::GpuPreference gpu_preference) { 22 // This code path shouldn't be taken if CA plugins are disabled 23 // because the CA drawing model shouldn't be advertised. 24 DCHECK(!CommandLine::ForCurrentProcess()->HasSwitch( 25 switches::kDisableCoreAnimationPlugins)); 26 27 // Require IOSurface support for drawing Core Animation plugins. 28 if (!IOSurfaceSupport::Initialize()) 29 return NULL; 30 31 AcceleratedSurface* surface = new AcceleratedSurface; 32 // It's possible for OpenGL to fail to initialize (e.g., if an incompatible 33 // mode is forced via flags), so handle that gracefully. 34 if (!surface->Initialize(NULL, true, gpu_preference)) { 35 delete surface; 36 return NULL; 37 } 38 39 return new WebPluginAcceleratedSurfaceProxy(plugin_proxy, surface); 40 } 41 42 WebPluginAcceleratedSurfaceProxy::WebPluginAcceleratedSurfaceProxy( 43 WebPluginProxy* plugin_proxy, 44 AcceleratedSurface* surface) 45 : plugin_proxy_(plugin_proxy), 46 surface_(surface) { 47 } 48 49 WebPluginAcceleratedSurfaceProxy::~WebPluginAcceleratedSurfaceProxy() { 50 if (surface_) { 51 surface_->Destroy(); 52 delete surface_; 53 surface_ = NULL; 54 } 55 } 56 57 void WebPluginAcceleratedSurfaceProxy::SetSize(const gfx::Size& size) { 58 if (!surface_) 59 return; 60 61 uint32 io_surface_id = surface_->SetSurfaceSize(size); 62 // If allocation fails for some reason, still inform the plugin proxy. 63 plugin_proxy_->AcceleratedPluginAllocatedIOSurface( 64 size.width(), size.height(), io_surface_id); 65 } 66 67 CGLContextObj WebPluginAcceleratedSurfaceProxy::context() { 68 return surface_ ? surface_->context() : NULL; 69 } 70 71 void WebPluginAcceleratedSurfaceProxy::StartDrawing() { 72 if (!surface_) 73 return; 74 75 surface_->MakeCurrent(); 76 surface_->Clear(gfx::Rect(surface_->GetSize())); 77 } 78 79 void WebPluginAcceleratedSurfaceProxy::EndDrawing() { 80 if (!surface_) 81 return; 82 83 surface_->SwapBuffers(); 84 plugin_proxy_->AcceleratedPluginSwappedIOSurface(); 85 } 86 87 } // namespace content 88
