Hi Kai-Uwe.
That may be a bug.
May I have the sRGC.icc and XYZ.icc profiles?
Tried with the built-ins but it doesn't fail
with those...
Tnx!
Marti
Quoting Kai-Uwe Behrmann <k...@gmx.de>:
> Btw the output of the code during cmsTransform2DeviceLink() is:
>
> lcms2: LUT is not suitable to be saved as LutAToB
> lcms2: Couldn't write type 'mAB '
>
>
> Am 06.08.10, 15:03 +0200 schrieb Kai-Uwe Behrmann:
>> Any idea how to put the processing elements in the right order during
>> creation of a transform from sRGB to XYZ floats?.
>>
>> Following code demonstrates the issue:
>>
>> /* gcc -Wall -g transforms.c -o transforms `pkg-config --cflags
>> --libs lcms2` */
>> #include <lcms2.h>
>>
>> void errorHandlerFunction ( cmsContext ContextID,
>> cmsUInt32Number ErrorCode,
>> const char * ErrorText )
>> { printf( "lcms2: %s\n", ErrorText ); }
>>
>>
>> int main(int argc, char **argv)
>> {
>> cmsSetLogErrorHandler( lcm2ErrorHandlerFunction );
>> /* adapt profile paths to your needs */
>> cmsHPROFILE p_in = cmsOpenProfileFromFile(
>> "/usr/share/color/icc/sRGB.icc","rb");
>> cmsHPROFILE p_out = cmsOpenProfileFromFile(
>> "/usr/share/color/icc/XYZ.icc","rb");
>>
>> cmsUInt32Number format_in = TYPE_RGB_FLT,
>> format_out = TYPE_XYZ_FLT;
>> cmsHTRANSFORM xform = cmsCreateTransform( p_in, format_in,
>> p_out, format_out,
>> 0, 0 );
>> cmsHPROFILE dl = cmsTransform2DeviceLink( xform, 4.2, 0 );
>>
>> if(!cmsSaveProfileToFile( dl, "sRGB-XYZ_dl.icc" ))
>> printf("error in writing sRGB-XYZ_dl.icc\n");
>>
>> return 0;
>> }
>
>
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