Merge 113677 - [chromium] Viewport is not filled when out of texture memory on mac

Source/WebCore/platform/graphics/chromium/cc/CCRenderPass.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
 #include "cc/CCRenderPass.h"
 
+#include "Color.h"
 #include "cc/CCDamageTracker.h"
 #include "cc/CCDebugBorderDrawQuad.h"
 #include "cc/CCLayerImpl.h"
 #include "cc/CCQuadCuller.h"
 #include "cc/CCRenderSurfaceDrawQuad.h"
 #include "cc/CCSharedQuadState.h"
+#include "cc/CCSolidColorDrawQuad.h"
 
 namespace WebCore {
 
 static const int debugSurfaceBorderWidth = 2;
 static const int debugSurfaceBorderAlpha = 100;
 static const int debugSurfaceBorderColorRed = 0;
 static const int debugSurfaceBorderColorGreen = 0;
 static const int debugSurfaceBorderColorBlue = 255;
 static const int debugReplicaBorderColorRed = 160;
 static const int debugReplicaBorderColorGreen = 0;
@@ skipping 35 matching lines @@
             Color color(debugReplicaBorderColorRed, debugReplicaBorderColorGreen, debugReplicaBorderColorBlue, debugSurfaceBorderAlpha);
             m_quadList.append(CCDebugBorderDrawQuad::create(sharedQuadState.get(), surface->contentRect(), color, debugSurfaceBorderWidth));
             m_sharedQuadStateList.append(sharedQuadState.release());
         }
     }
 
     m_quadList.append(CCRenderSurfaceDrawQuad::create(sharedQuadState.get(), surface->contentRect(), layer, surfaceDamageRect()));
     m_sharedQuadStateList.append(sharedQuadState.release());
 }
 
+void CCRenderPass::appendQuadsToFillScreen(CCLayerImpl* rootLayer, const Color& screenBackgroundColor, const CCOcclusionTrackerImpl& occlusionTracker)
+{
+    if (!rootLayer || !screenBackgroundColor.isValid())
+        return;
+
+    Region fillRegion = occlusionTracker.computeVisibleRegionInScreen();
+    if (fillRegion.isEmpty())
+        return;
+
+    OwnPtr<CCSharedQuadState> sharedQuadState = rootLayer->createSharedQuadState();
+    TransformationMatrix transformToLayerSpace = rootLayer->screenSpaceTransform().inverse();
+    Vector<IntRect> fillRects = fillRegion.rects();
+    for (size_t i = 0; i < fillRects.size(); ++i) {
+        IntRect layerRect = transformToLayerSpace.mapRect(fillRects[i]);
+        m_quadList.append(CCSolidColorDrawQuad::create(sharedQuadState.get(), layerRect, screenBackgroundColor));
+    }
+    m_sharedQuadStateList.append(sharedQuadState.release());
+}
+
 }