On 05/12/2010 05:57 PM, Stefano Stabellini wrote:
I guess even a src blt pitch of 0 could be useful there, however in
practice I think the only rop function that was written with this case in
mind has:
dstpitch -= bltwidth;
srcpitch -= bltwidth;
if (dstpitch< 0 || srcpitch< 0) {
/* is 0 valid? srcpitch == 0 could be useful */
return;
}
Note that here srcpitch == 0 is actually srcpitch == bltwidth, which
_is_ obviously useful.
The "real" srcpitch == 0 case would result in srcpitch == -bltwidth, and
it is actually quite useful if you want to stretch a Nx1 bitmap to NxN.
Paolo
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