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| author | Marti Maria <marti.maria@littlecms.com> | 2022-12-04 16:46:13 +0100 |
|---|---|---|
| committer | Marti Maria <marti.maria@littlecms.com> | 2022-12-04 16:46:13 +0100 |
| commit | a6955358910a5300148ce2fe31790ef55f29f7b0 (patch) | |
| tree | 091494cd92a1559be71931783909f9edef211be1 /src | |
| parent | caab4c07e60022a0f776b543eaa30785e2bb42ed (diff) | |
| download | lcms2-a6955358910a5300148ce2fe31790ef55f29f7b0.tar.gz | |
Output on pre-multiplied alpha is now zero if alpha is zero
Fixes #346
Output on pre-multiplied alpha is now zero if alpha is zero.
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmspack.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/cmspack.c b/src/cmspack.c index 3982cc5..72b4785 100644 --- a/src/cmspack.c +++ b/src/cmspack.c @@ -1707,7 +1707,7 @@ cmsUInt8Number* PackChunkyBytes(CMSREGISTER _cmsTRANSFORM* info, if (Reverse) v = REVERSE_FLAVOR_16(v); - if (Premul && alpha_factor != 0) + if (Premul) { v = (cmsUInt16Number)((cmsUInt32Number)((cmsUInt32Number)v * alpha_factor + 0x8000) >> 16); } @@ -1776,7 +1776,7 @@ cmsUInt8Number* PackChunkyWords(CMSREGISTER _cmsTRANSFORM* info, if (Reverse) v = REVERSE_FLAVOR_16(v); - if (Premul && alpha_factor != 0) + if (Premul) { v = (cmsUInt16Number)((cmsUInt32Number)((cmsUInt32Number)v * alpha_factor + 0x8000) >> 16); } @@ -1843,7 +1843,7 @@ cmsUInt8Number* PackPlanarBytes(CMSREGISTER _cmsTRANSFORM* info, if (Reverse) v = REVERSE_FLAVOR_16(v); - if (Premul && alpha_factor != 0) + if (Premul) { v = (cmsUInt16Number)((cmsUInt32Number)((cmsUInt32Number)v * alpha_factor + 0x8000) >> 16); } @@ -1903,7 +1903,7 @@ cmsUInt8Number* PackPlanarWords(CMSREGISTER _cmsTRANSFORM* info, if (Reverse) v = REVERSE_FLAVOR_16(v); - if (Premul && alpha_factor != 0) + if (Premul) { v = (cmsUInt16Number)((cmsUInt32Number)((cmsUInt32Number)v * alpha_factor + 0x8000) >> 16); } |