diff options
Diffstat (limited to 'src/cmsxform.c')
| -rw-r--r-- | src/cmsxform.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/cmsxform.c b/src/cmsxform.c index 8a76dae..eef54e4 100644 --- a/src/cmsxform.c +++ b/src/cmsxform.c @@ -369,6 +369,7 @@ _cmsTRANSFORM* AllocEmptyTransform(cmsContext ContextID, cmsUInt32Number InputFo if (InputFormat == 0 && OutputFormat == 0) { p ->FromInput = p ->ToOutput = NULL; + dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER; } else { @@ -509,6 +510,12 @@ cmsHTRANSFORM CMSEXPORT cmsCreateExtendedTransform(cmsContext ContextID, cmsPipeline* Lut; cmsUInt32Number LastIntent = Intents[nProfiles-1]; + // If it is a fake transform + if (dwFlags & cmsFLAGS_NULLTRANSFORM) + { + return AllocEmptyTransform(ContextID, InputFormat, OutputFormat, dwFlags); + } + // If gamut check is requested, make sure we have a gamut profile if (dwFlags & cmsFLAGS_GAMUTCHECK) { if (hGamutProfile == NULL) dwFlags &= ~cmsFLAGS_GAMUTCHECK; @@ -788,10 +795,9 @@ cmsBool CMSEXPORT cmsChangeBuffersFormat(cmsHTRANSFORM hTransform, _cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform; cmsFormatter16 FromInput, ToOutput; - cmsUInt32Number BytesPerPixelInput; + - // We only can afford to change formatters if previous transform is at least 16 bits - BytesPerPixelInput = T_BYTES(xform ->InputFormat); + // We only can afford to change formatters if previous transform is at least 16 bits if (!(xform ->dwOriginalFlags & cmsFLAGS_CAN_CHANGE_FORMATTER)) { cmsSignalError(xform ->ContextID, cmsERROR_NOT_SUITABLE, "cmsChangeBuffersFormat works only on transforms created originally with at least 16 bits of precision"); |