diff options
Diffstat (limited to 'converter/other/bmptopnm.c')
| -rw-r--r-- | converter/other/bmptopnm.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/converter/other/bmptopnm.c b/converter/other/bmptopnm.c index 3ba1d77c..4d29e4d3 100644 --- a/converter/other/bmptopnm.c +++ b/converter/other/bmptopnm.c @@ -651,11 +651,15 @@ extractBitFields(unsigned int const rasterval, unsigned int const abits = (rasterval >> pixelformat.trn.shift) & pixelformat.trn.mask; - *rP = (unsigned int) rbits * maxval / pixelformat.red.mask; - *gP = (unsigned int) gbits * maxval / pixelformat.blu.mask; - *bP = (unsigned int) bbits * maxval / pixelformat.grn.mask; - *aP = (unsigned int) abits * maxval / pixelformat.trn.mask; -} + *rP = pixelformat.red.mask ? + (unsigned int) rbits * maxval / pixelformat.red.mask : 0; + *gP = pixelformat.grn.mask ? + (unsigned int) gbits * maxval / pixelformat.grn.mask : 0; + *bP = pixelformat.blu.mask ? + (unsigned int) bbits * maxval / pixelformat.blu.mask : 0; + *aP = pixelformat.trn.mask ? + (unsigned int) abits * maxval / pixelformat.trn.mask : 0; +} |