Add CCDelegatingRenderer, and corresponding IPCs

cc/CCLayerTreeHostImpl.cpp

 // Copyright 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.
 
 #include "config.h"
 
 #include "CCLayerTreeHostImpl.h"
 
 #include "base/basictypes.h"
 #include "CCAppendQuadsData.h"
 #include "CCDamageTracker.h"
 #include "CCDebugRectHistory.h"
 #include "CCDelayBasedTimeSource.h"
+#include "CCDelegatingRenderer.h"
 #include "CCFontAtlas.h"
 #include "CCFrameRateCounter.h"
 #include "CCHeadsUpDisplayLayerImpl.h"
 #include "CCLayerIterator.h"
 #include "CCLayerTreeHost.h"
 #include "CCLayerTreeHostCommon.h"
 #include "CCMathUtil.h"
 #include "CCOverdrawMetrics.h"
 #include "CCPageScaleAnimation.h"
 #include "CCPrioritizedTextureManager.h"
 #include "CCRenderPassDrawQuad.h"
 #include "CCRendererGL.h"
 #include "CCRendererSoftware.h"
 #include "CCRenderingStats.h"
 #include "CCScrollbarAnimationController.h"
 #include "CCScrollbarLayerImpl.h"
 #include "CCSettings.h"
 #include "CCSingleThreadProxy.h"
+#include "compositor_frame.h"
 #include "TextureUploader.h"
 #include "TraceEvent.h"
 #include <wtf/CurrentTime.h>
 #include <algorithm>
 
 using WebKit::WebTransformationMatrix;
 
 namespace {
 
 void didVisibilityChange(cc::CCLayerTreeHostImpl* id, bool visible)
@@ skipping 610 matching lines @@
 
     ASSERT(bytes);
     m_client->setNeedsCommitOnImplThread();
 }
 
 void CCLayerTreeHostImpl::onVSyncParametersChanged(double monotonicTimebase, double intervalInSeconds)
 {
     m_client->onVSyncParametersChanged(monotonicTimebase, intervalInSeconds);
 }
 
+void CCLayerTreeHostImpl::onSendFrameToParentCompositorAck(const WebKit::WebCompositorFrameAck& webAck)
+{
+    const CompositorFrameAck& ack = static_cast<const CompositorFrameAck&>(webAck);
+    if (m_renderer)
+        m_renderer->onSendFrameToParentCompositorAck(ack);
+}
+
 void CCLayerTreeHostImpl::drawLayers(const FrameData& frame)
 {
     TRACE_EVENT0("cc", "CCLayerTreeHostImpl::drawLayers");
     ASSERT(canDraw());
     ASSERT(!frame.renderPasses.empty());
 
     // FIXME: use the frame begin time from the overall compositor scheduler.
     // This value is currently inaccessible because it is up in Chromium's
     // RenderWidget.
     m_fpsCounter->markBeginningOfFrame(currentTime());
@@ skipping 168 matching lines @@
     m_resourceProvider.clear();
     m_context.reset();
 
     if (!context->bindToClient(this))
         return false;
 
     OwnPtr<CCResourceProvider> resourceProvider = CCResourceProvider::create(context.get());
     if (!resourceProvider)
         return false;
 
-    if (context->context3D())
+    if (context->capabilities().hasParentCompositor)
+        m_renderer = CCDelegatingRenderer::create(this, resourceProvider.get());
+    else if (context->context3D())
         m_renderer = CCRendererGL::create(this, resourceProvider.get());
     else if (context->softwareDevice())
         m_renderer = CCRendererSoftware::create(this, resourceProvider.get(), context->softwareDevice());
     if (!m_renderer)
         return false;
 
     m_resourceProvider = resourceProvider.release();
     m_context = context.Pass();
 
     if (!m_visible)
@@ skipping 592 matching lines @@
 
     CCScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], monotonicTime);
 }
 
 }  // namespace cc