Title: [277528] trunk/Source/WebKit
- Revision
- 277528
- Author
- timothy_hor...@apple.com
- Date
- 2021-05-14 20:15:41 -0700 (Fri, 14 May 2021)
Log Message
REGRESSION (r269824): Random tile corruption when scrolling/zooming in macCatalyst
https://bugs.webkit.org/show_bug.cgi?id=225837
<rdar://problem/75053997>
Reviewed by Simon Fraser.
* Shared/RemoteLayerTree/RemoteLayerBackingStore.mm:
(WebKit::RemoteLayerBackingStore::swapToValidFrontBuffer):
Mark the newly front buffer non-volatile before painting into it.
This was lost in r269824. Oddly, this caused less trouble than
one might expect, except on some particular hardware.
Modified Paths
Diff
Modified: trunk/Source/WebKit/ChangeLog (277527 => 277528)
--- trunk/Source/WebKit/ChangeLog 2021-05-15 02:05:22 UTC (rev 277527)
+++ trunk/Source/WebKit/ChangeLog 2021-05-15 03:15:41 UTC (rev 277528)
@@ -1,3 +1,17 @@
+2021-05-14 Tim Horton <timothy_hor...@apple.com>
+
+ REGRESSION (r269824): Random tile corruption when scrolling/zooming in macCatalyst
+ https://bugs.webkit.org/show_bug.cgi?id=225837
+ <rdar://problem/75053997>
+
+ Reviewed by Simon Fraser.
+
+ * Shared/RemoteLayerTree/RemoteLayerBackingStore.mm:
+ (WebKit::RemoteLayerBackingStore::swapToValidFrontBuffer):
+ Mark the newly front buffer non-volatile before painting into it.
+ This was lost in r269824. Oddly, this caused less trouble than
+ one might expect, except on some particular hardware.
+
2021-05-14 Jonathan Bedard <jbed...@apple.com>
Fix iOS 14.5 embedded build
Modified: trunk/Source/WebKit/Shared/RemoteLayerTree/RemoteLayerBackingStore.mm (277527 => 277528)
--- trunk/Source/WebKit/Shared/RemoteLayerTree/RemoteLayerBackingStore.mm 2021-05-15 02:05:22 UTC (rev 277527)
+++ trunk/Source/WebKit/Shared/RemoteLayerTree/RemoteLayerBackingStore.mm 2021-05-15 03:15:41 UTC (rev 277528)
@@ -202,8 +202,10 @@
std::swap(m_frontBuffer, m_backBuffer);
- if (m_frontBuffer.imageBuffer)
+ if (m_frontBuffer.imageBuffer) {
+ setBufferVolatility(BufferType::Front, false);
return;
+ }
bool shouldUseRemoteRendering = WebProcess::singleton().shouldUseRemoteRenderingFor(WebCore::RenderingPurpose::DOM);
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