[Android WebView] Implement Ubercomp for Render Thread support

android_webview/native/aw_contents.cc

 // Copyright 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.
 
 #include "android_webview/native/aw_contents.h"
 
 #include <limits>
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_browser_main_parts.h"
 #include "android_webview/browser/aw_resource_context.h"
 #include "android_webview/browser/browser_view_renderer.h"
 #include "android_webview/browser/deferred_gpu_command_service.h"
 #include "android_webview/browser/gpu_memory_buffer_factory_impl.h"
 #include "android_webview/browser/hardware_renderer.h"
+#include "android_webview/browser/hardware_renderer_legacy.h"
 #include "android_webview/browser/net_disk_cache_remover.h"
 #include "android_webview/browser/renderer_host/aw_resource_dispatcher_host_delegate.h"
 #include "android_webview/browser/scoped_app_gl_state_restore.h"
 #include "android_webview/common/aw_hit_test_data.h"
+#include "android_webview/common/aw_switches.h"
 #include "android_webview/common/devtools_instrumentation.h"
 #include "android_webview/native/aw_autofill_manager_delegate.h"
 #include "android_webview/native/aw_browser_dependency_factory.h"
 #include "android_webview/native/aw_contents_client_bridge.h"
 #include "android_webview/native/aw_contents_io_thread_client_impl.h"
 #include "android_webview/native/aw_pdf_exporter.h"
 #include "android_webview/native/aw_picture.h"
 #include "android_webview/native/aw_web_contents_delegate.h"
 #include "android_webview/native/java_browser_view_renderer_helper.h"
 #include "android_webview/native/permission/aw_permission_request.h"
@@ skipping 314 matching lines @@
     hardware_renderer_.reset();
     shared_renderer_state_.SetHardwareInitialized(false);
     return;
   }
 
   if (draw_info->mode != AwDrawGLInfo::kModeDraw)
     return;
 
   if (!hardware_renderer_) {
     DCHECK(!shared_renderer_state_.IsHardwareInitialized());
-    hardware_renderer_.reset(new HardwareRenderer(&shared_renderer_state_));
+    if (switches::UbercompEnabled()) {
+      hardware_renderer_.reset(new HardwareRenderer(&shared_renderer_state_));
+    } else {
+      hardware_renderer_.reset(
+          new HardwareRendererLegacy(&shared_renderer_state_));
+    }
     shared_renderer_state_.SetHardwareInitialized(true);
   }
 
-  DrawGLResult result;
+  scoped_ptr<DrawGLResult> result(new DrawGLResult);
   if (hardware_renderer_->DrawGL(state_restore.stencil_enabled(),
                                  state_restore.framebuffer_binding_ext(),
                                  draw_info,
-                                 &result)) {
-    browser_view_renderer_.DidDrawGL(result);
+                                 result.get())) {
+    if (switches::UbercompEnabled()) {
+      browser_view_renderer_.DidDrawDelegated(result.Pass());
+    } else {
+      browser_view_renderer_.DidDrawGL(result.Pass());
+    }
   }
 }
 
 namespace {
 void DocumentHasImagesCallback(const ScopedJavaGlobalRef<jobject>& message,
                                bool has_images) {
   Java_AwContents_onDocumentHasImagesResponse(AttachCurrentThread(),
                                               has_images,
                                               message.obj());
 }
@@ skipping 429 matching lines @@
   }
 }
 
 void AwContents::OnDetachedFromWindow(JNIEnv* env, jobject obj) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   shared_renderer_state_.SetHardwareAllowed(false);
 
   bool hardware_initialized = shared_renderer_state_.IsHardwareInitialized();
   if (hardware_initialized) {
     bool draw_functor_succeeded = RequestDrawGL(NULL, true);
     if (!draw_functor_succeeded && hardware_initialized) {

[no sievers, 2014/05/23 19:47:35]

|hardware_initialized| is always true in here.

[boliu, 2014/05/23 20:36:51]

Done.

       LOG(ERROR) << "Unable to free GL resources. Has the Window leaked?";
       // Calling release on wrong thread intentionally.
       AwDrawGLInfo info;
       info.mode = AwDrawGLInfo::kModeProcess;
       DrawGL(&info);
     }
   }
 
   DCHECK(!hardware_renderer_);
   browser_view_renderer_.OnDetachedFromWindow();
@@ skipping 260 matching lines @@
     return;
 
   browser_view_renderer_.TrimMemory(level, visible);
 }
 
 void SetShouldDownloadFavicons(JNIEnv* env, jclass jclazz) {
   g_should_download_favicons = true;
 }
 
 }  // namespace android_webview