[Bug 65514] New: Mesa can't render Google Maps WebGL preview in Firefox

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65514

          Priority: medium
            Bug ID: 65514
          Assignee: dri-devel at lists.freedesktop.org
           Summary: Mesa can't render Google Maps WebGL preview in Firefox
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: nmiell at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Drivers/Gallium/r600
           Product: Mesa

Both current git Mesa (8bc788ea9e73ef4c355dfea80ac5070c6f81ac1c) and current
Fedora Mesa (mesa-libGL-9.2-0.7.20130528.fc18.x86_64) fail to render the
preview version of the WebGL based Google Maps correctly in Firefox.

The Google Maps preview renders correctly in Chrome using Mesa and in Firefox
using Catalyst.

The misrendering occurs with both RS880 (Radeon HD 4250) and JUNIPER (Radeon HD
6770) GPUs.

After the initial map is rendered (when in Map mode), Firefox fails to update
the map in response to user interaction (dragging the map around, searching for
locations outside the current map view, zooming, etc.) unless the window is
resized.

If you switch to Earth mode (which uses aerial photography instead of line
drawings), in addition to failures to redraw, forcing redraws using resizing
often results in corrupted rendering.

xorg-x11-server-Xorg-1.13.3-3.fc18.x86_64
kernel-3.9.4-200.fc18.x86_64

(Sign up for the Google Maps preview at http://maps.google.com/preview ).

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