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Unified Diff: Source/core/html/HTMLCanvasElement.cpp

Issue 341213002: Redraw only dirty area for accelerated 2D Canvas. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 6 months ago
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Index: Source/core/html/HTMLCanvasElement.cpp
diff --git a/Source/core/html/HTMLCanvasElement.cpp b/Source/core/html/HTMLCanvasElement.cpp
index e8805396aa094994d3774af6d021dc1439dbcf1d..eb1ebcbc27c39a6ebfdcfaf9c646931da18accab 100644
--- a/Source/core/html/HTMLCanvasElement.cpp
+++ b/Source/core/html/HTMLCanvasElement.cpp
@@ -219,6 +219,7 @@ void HTMLCanvasElement::didDraw(const FloatRect& rect)
void HTMLCanvasElement::notifyObserversCanvasChanged(const FloatRect& rect)
{
+ m_dirtyRect = rect;
Justin Novosad 2014/06/20 14:06:53 Storing the rect for later is a fragile approach b
WillBeHeapHashSet<RawPtrWillBeWeakMember<CanvasObserver> >::iterator end = m_observers.end();
for (WillBeHeapHashSet<RawPtrWillBeWeakMember<CanvasObserver> >::iterator it = m_observers.begin(); it != end; ++it)
(*it)->canvasChanged(this, rect);

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