http://bugs.freedesktop.org/show_bug.cgi?id=24531
Summary: ARB FP shaders appear to have locale-dependant syntax
Product: Mesa
Version: unspecified
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
AssignedTo: mesa3d-dev@lists.sourceforge.net
ReportedBy: n...@linux.intel.com
Created an attachment (id=30410)
--> (http://bugs.freedesktop.org/attachment.cgi?id=30410)
Test program
The parser for ARB FB shaders uses different values for number constants
depending on the locale. It may be using strtod somewhere for parsing numbers
which is locale dependent.
Please see the attached program which renders a rectangle using a shader with
the constant color 0.5, 0.5, 0.5. Under the C locale this appears as a grey
rectangle but under a French locale (which uses ',' as the decimal separator)
it appears as a black rectangle.
This is likely the root cause of this bug in Moblin which is using Mesa 7.6:
http://bugzilla.moblin.org/show_bug.cgi?id=6803
Robert Bragg has tested with Mesa git drivers from Oct 12th and they also
display the bug.
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