[sane-devel] a backend test
Oliver Rauch
oliver.rauch at rauch-domain.de
Tue Mar 19 21:58:31 GMT 2002
Frank Zago wrote:
>
> > for (*option_num = 0; *option_num <= num_dev_options; (*option_num)++) {
> >
> > Shouldn't this be "< num_dev_options"
>
> Fixed. New release uploaded.
>
> Your bug report looks smaller everytime. I take that as a good sign :)
>
> In your pnm backend, in sane_get_parameters, you could return a slightly
> different number of line and line size when a backup is not occuring.
>
Hello Frank,
when for Option 0 the name is not defined (opt->name == NULL) then this code
prints the warning about empty name. e.g. the additional "if (opt->name != NULL)"
solves the Problem, but then the opt->name != NULL of the check command also
can be removed:
if (opt->name != NULL)
{
check(WRN, (*opt->name ==0),
"option %d must have an empty name (ie. \"\")",
option_num);
}
The testbackend prints a warning:
warning : invalid size for option halftone-pattern
for this option:
/* halftone pattern */
scanner->opt[OPT_HALFTONE_PATTERN].name = SANE_NAME_HALFTONE_PATTERN;
scanner->opt[OPT_HALFTONE_PATTERN].title = SANE_TITLE_HALFTONE_PATTERN;
scanner->opt[OPT_HALFTONE_PATTERN].desc = SANE_DESC_HALFTONE_PATTERN;
scanner->opt[OPT_HALFTONE_PATTERN].type = SANE_TYPE_INT;
scanner->opt[OPT_HALFTONE_PATTERN].size = 0;
scanner->opt[OPT_HALFTONE_PATTERN].constraint_type = SANE_CONSTRAINT_RANGE;
scanner->opt[OPT_HALFTONE_PATTERN].constraint.range = &u8_range;
scanner->val[OPT_HALFTONE_PATTERN].wa = scanner->halftone_pattern;
I think a constraint_range can have a size of 0 if there is nothing to set.
In this case the option also is set inactive.
Bye
Oliver
--
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