This appeared (after some discussion of Mozilla's handling of the PNG cHRM
chunk) on [EMAIL PROTECTED] See also bug #460520 at
bugzilla.mozilla.org:
... little-cms succeeds when it should fail.
I think it fails to detect the error in MAT3Inverse (cmxmtrx.c):
int MAT3inverse()
it returns 1 on success and -1 for what the comment asserts is a singular
matrix.
But the code in cmswtpnt.c tests the result as a Boolean:
LCMSBOOL LCMSEXPORT cmsBuildRGB2XYZtransferMatrix(LPMAT3 r, LPcmsCIExyY
WhitePt,
LPcmsCIExyYTRIPLE Primrs)
{
...
// Result = Primaries ^ (-1) inverse matrix
if (!MAT3inverse(&Primaries, &Result))
return FALSE;
The same bug exists in cmsmtrx.c itself (!) but not in cmsxform.c - which
tests for <0.
Glenn Randers-Pehrson (forwarding report by John Bowler)
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