Title: [168033] trunk/Source/WebKit2
- Revision
- 168033
- Author
- za...@apple.com
- Date
- 2014-04-30 12:00:06 -0700 (Wed, 30 Apr 2014)
Log Message
[iOS]Subpixel rendering: Extra line of pixels next to the YouTube loading indicator.
https://bugs.webkit.org/show_bug.cgi?id=132391
Reviewed by Simon Fraser.
CG and GraphicsContext clipping should use the same coordinates. Snapping either one
while leaving the other unsnapped results in clipping mismatch and that may produce
unpainted areas.
Not testable.
* Shared/mac/RemoteLayerBackingStore.mm:
(WebKit::RemoteLayerBackingStore::drawInContext):
Modified Paths
Diff
Modified: trunk/Source/WebKit2/ChangeLog (168032 => 168033)
--- trunk/Source/WebKit2/ChangeLog 2014-04-30 17:50:04 UTC (rev 168032)
+++ trunk/Source/WebKit2/ChangeLog 2014-04-30 19:00:06 UTC (rev 168033)
@@ -1,3 +1,19 @@
+2014-04-30 Zalan Bujtas <za...@apple.com>
+
+ [iOS]Subpixel rendering: Extra line of pixels next to the YouTube loading indicator.
+ https://bugs.webkit.org/show_bug.cgi?id=132391
+
+ Reviewed by Simon Fraser.
+
+ CG and GraphicsContext clipping should use the same coordinates. Snapping either one
+ while leaving the other unsnapped results in clipping mismatch and that may produce
+ unpainted areas.
+
+ Not testable.
+
+ * Shared/mac/RemoteLayerBackingStore.mm:
+ (WebKit::RemoteLayerBackingStore::drawInContext):
+
2014-04-30 Alexey Proskuryakov <a...@apple.com>
https://bugs.webkit.org/show_bug.cgi?id=132363
Modified: trunk/Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm (168032 => 168033)
--- trunk/Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm 2014-04-30 17:50:04 UTC (rev 168032)
+++ trunk/Source/WebKit2/Shared/mac/RemoteLayerBackingStore.mm 2014-04-30 19:00:06 UTC (rev 168033)
@@ -264,6 +264,7 @@
dirtyRects.append(dirtyBounds);
}
+ // FIXME: find a consistent way to scale and snap dirty and CG clip rects.
for (const auto& rect : dirtyRects) {
FloatRect scaledRect(rect);
scaledRect.scale(m_scale, m_scale);
@@ -276,7 +277,7 @@
for (size_t i = 0, dirtyRectCount = m_paintingRects.size(); i < dirtyRectCount; ++i) {
FloatRect scaledPaintingRect = m_paintingRects[i];
scaledPaintingRect.scale(m_scale);
- cgPaintingRects[i] = enclosingIntRect(scaledPaintingRect);
+ cgPaintingRects[i] = scaledPaintingRect;
}
if (backImage) {
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