Changeset 111560 in webkit

Timestamp:

Mar 21, 2012 10:16:46 AM (12 years ago)

Author:

jocelyn.turcotte@nokia.com

Message:

TiledBackingStore: When checking if the visible area is covered, only convert to scaled coordinates once.
​https://bugs.webkit.org/show_bug.cgi?id=81519

Reviewed by Kenneth Rohde Christiansen.

Both visibleRect and coverageRatio call mapFromContents on the input rect,
this woulc cause the coverageRatio to never reach 1.0 when the contents is
scaled up.

• platform/graphics/TiledBackingStore.cpp:

(WebCore::TiledBackingStore::visibleAreaIsCovered):

Location:

trunk/Source/WebCore

Files:

• ChangeLog (modified) (1 diff)
• platform/graphics/TiledBackingStore.cpp (modified) (1 diff)

trunk/Source/WebCore/ChangeLog

@@ +1 @@
+2012-03-19  Jocelyn Turcotte  <jocelyn.turcotte@nokia.com>
+
+        TiledBackingStore: When checking if the visible area is covered, only convert to scaled coordinates once.
+        https://bugs.webkit.org/show_bug.cgi?id=81519
+
+        Reviewed by Kenneth Rohde Christiansen.
+
+        Both visibleRect and coverageRatio call mapFromContents on the input rect,
+        this woulc cause the coverageRatio to never reach 1.0 when the contents is
+        scaled up.
+
+        * platform/graphics/TiledBackingStore.cpp:
+        (WebCore::TiledBackingStore::visibleAreaIsCovered):
+
 2012-03-21  Mao Yujie  <yujie.mao@intel.com>
 

trunk/Source/WebCore/platform/graphics/TiledBackingStore.cpp

@@ -228 +228 @@
 bool TiledBackingStore::visibleAreaIsCovered() const
 {
-    return coverageRatio(visibleRect()) == 1.0f;
+    return coverageRatio(m_client->tiledBackingStoreVisibleRect()) == 1.0f;
 }