Changeset 88577 in webkit

Timestamp:

Jun 10, 2011 4:55:31 PM (13 years ago)

Author:

alokp@chromium.org

Message:

2011-06-10 Alok Priyadarshi <​alokp@chromium.org>

Reviewed by James Robinson.

[chromium] Top portion of page is rendered messed up with accelerated drawing
​https://bugs.webkit.org/show_bug.cgi?id=62484

Fixed the math in flipping the texture from bottom-up to top-down.
Test: compositing/repaint/shrink-layer.html (existing)

• platform/graphics/chromium/LayerTilerChromium.cpp: (WebCore::LayerTilerChromium::draw):

Location:

trunk/Source/WebCore

Files:

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

trunk/Source/WebCore/ChangeLog

@@ +1 @@
+2011-06-10  Alok Priyadarshi  <alokp@chromium.org>
+
+        Reviewed by James Robinson.
+
+        [chromium] Top portion of page is rendered messed up with accelerated drawing
+        https://bugs.webkit.org/show_bug.cgi?id=62484
+
+        Fixed the math in flipping the texture from bottom-up to top-down.
+        Test: compositing/repaint/shrink-layer.html (existing)
+
+        * platform/graphics/chromium/LayerTilerChromium.cpp:
+        (WebCore::LayerTilerChromium::draw):
+
 2011-06-10  Tony Chang  <tony@chromium.org>
 

trunk/Source/WebCore/platform/graphics/chromium/LayerTilerChromium.cpp

@@ -379 +379 @@
             // If tile texture is top-down, we need to flip the texture coordinates.
             if (m_textureUpdater->orientation() == LayerTextureUpdater::TopDownOrientation) {
-                texTranslateY += 1.0;
+                texTranslateY = 1.0 - texTranslateY;
                 texScaleY *= -1.0;
             }