diff options
Diffstat (limited to 'converter')
| -rw-r--r-- | converter/other/pamtopng.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/converter/other/pamtopng.c b/converter/other/pamtopng.c index 3a987820..a9d04029 100644 --- a/converter/other/pamtopng.c +++ b/converter/other/pamtopng.c @@ -287,6 +287,16 @@ colorTypeFromInputType(const struct pam * const pamP) { pm_error("Input tuple type is GRAYSCALE, " "but number of planes is %u instead of 1", pamP->depth); + } else if (strneq(pamP->tuple_type, "BLACKANDWHITE_ALPHA", 19)) { + if (pamP->depth != 2) + pm_error("Input tuple type is BLACKANDWHITE_ALPHA, " + "but number of planes is %u instead of 2", + pamP->depth); + if (pamP->maxval != 1) + pm_error("Input tuple type is BLACKANDWHITE_ALPHA, " + "but maxval is %u instead of 1", (unsigned)pamP->maxval); + + retval = PNG_COLOR_TYPE_GRAY_ALPHA; } else if (strneq(pamP->tuple_type, "BLACKANDWHITE", 3)) { if (pamP->depth != 1) pm_error("Input tuple type is BLACKANDWHITE, " |