Bug 84857 – [GTK] 32-bit vs 64-bit floating point inconsistencies in fast/repaint

• Status: RESOLVED
• Resolution: FIXED
• Component: WebKitGTK

[Philippe Normand]

2 tests fail on 32-bits Release:

--- /var/lib/buildbot/build/gtk-linux-32-release/build/layout-test-results/fast/repaint/moving-shadow-on-container-expected.txt 
+++ /var/lib/buildbot/build/gtk-linux-32-release/build/layout-test-results/fast/repaint/moving-shadow-on-container-actual.txt 
@@ -4,6 +4,6 @@
   RenderBlock {HTML} at (0,0) size 785x616
     RenderBody {BODY} at (8,8) size 769x600
       RenderSVGRoot {svg} at (8,8) size 468x173
-        RenderSVGPath {path} at (8,8) size 78x68 [stroke={[type=SOLID] [color=#000000] [stroke width=10.00]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83697e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10218e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
-        RenderSVGPath {path} at (200,46) size 128x125 [transform={m=((1.00,0.00)(0.00,1.00)) t=(250.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83697e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10218e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
-        RenderSVGPath {path} at (349,46) size 117x122 [transform={m=((1.00,0.00)(0.00,1.00)) t=(400.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.53081e-15 25 L -29.3893 40.4509 L -23.7764 7.72542 L -47.5528 -15.4508 L -14.6946 -20.2254 L -9.18485e-15 -50 L 14.6946 -20.2254 L 47.5528 -15.4508 L 23.7764 7.72542 L 29.3893 40.4509 Z"]
+        RenderSVGPath {path} at (8,8) size 78x68 [stroke={[type=SOLID] [color=#000000] [stroke width=10.00]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83691e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10215e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
+        RenderSVGPath {path} at (200,46) size 128x125 [transform={m=((1.00,0.00)(0.00,1.00)) t=(250.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83691e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10215e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
+        RenderSVGPath {path} at (349,46) size 117x122 [transform={m=((1.00,0.00)(0.00,1.00)) t=(400.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.53076e-15 25 L -29.3893 40.4509 L -23.7764 7.72542 L -47.5528 -15.4508 L -14.6946 -20.2254 L -9.18455e-15 -50 L 14.6946 -20.2254 L 47.5528 -15.4508 L 23.7764 7.72542 L 29.3893 40.4509 Z"]

--- /var/lib/buildbot/build/gtk-linux-32-release/build/layout-test-results/fast/repaint/moving-shadow-on-path-expected.txt 
+++ /var/lib/buildbot/build/gtk-linux-32-release/build/layout-test-results/fast/repaint/moving-shadow-on-path-actual.txt 
@@ -4,6 +4,6 @@
   RenderBlock {HTML} at (0,0) size 785x616
     RenderBody {BODY} at (8,8) size 769x600
       RenderSVGRoot {svg} at (8,8) size 458x163
-        RenderSVGPath {path} at (8,8) size 88x78 [stroke={[type=SOLID] [color=#000000] [stroke width=10.00]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83697e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10218e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
-        RenderSVGPath {path} at (200,46) size 138x135 [transform={m=((1.00,0.00)(0.00,1.00)) t=(250.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83697e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10218e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
-        RenderSVGPath {path} at (349,46) size 127x132 [transform={m=((1.00,0.00)(0.00,1.00)) t=(400.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.53081e-15 25 L -29.3893 40.4509 L -23.7764 7.72542 L -47.5528 -15.4508 L -14.6946 -20.2254 L -9.18485e-15 -50 L 14.6946 -20.2254 L 47.5528 -15.4508 L 23.7764 7.72542 L 29.3893 40.4509 Z"]
+        RenderSVGPath {path} at (8,8) size 88x78 [stroke={[type=SOLID] [color=#000000] [stroke width=10.00]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83691e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10215e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
+        RenderSVGPath {path} at (200,46) size 138x135 [transform={m=((1.00,0.00)(0.00,1.00)) t=(250.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.83691e-15 30 L -35.2671 48.541 L -28.5317 9.27051 L -57.0634 -18.541 L -17.6336 -24.2705 L -1.10215e-14 -60 L 17.6336 -24.2705 L 57.0634 -18.541 L 28.5317 9.27051 L 35.2671 48.541 Z"]
+        RenderSVGPath {path} at (349,46) size 127x132 [transform={m=((1.00,0.00)(0.00,1.00)) t=(400.00,100.00)}] [stroke={[type=SOLID] [color=#000000] [stroke width=10.00] [dash array={20.00}]}] [fill={[type=SOLID] [color=#999999]}] [data="M 1.53076e-15 25 L -29.3893 40.4509 L -23.7764 7.72542 L -47.5528 -15.4508 L -14.6946 -20.2254 L -9.18455e-15 -50 L 14.6946 -20.2254 L 47.5528 -15.4508 L 23.7764 7.72542 L 29.3893 40.4509 Z"]

[Diego Pino]

There are no references to this bug in any TestExpectations. It's probable this bug was solved at some point but it wasn't marked as closed. I'm closing this bug now. If you think this bug report is still valid, please reopen it and add an entry to TestExpectations.