Re: [Lcms-user] cmsBuildTabulatedToneCurve16

[Pascal de B. <pmj...@gm...>]

On Sat, Oct 13, 2012 at 5:47 PM, Marti Maria <mar...@li...> wrote:
>
> Try this one I'm sending, you have to fill the copyright and description but
> all remaining tags are ok

Thanks, that's very helpful. There is just one thing left, which is
that some of our 'desc' tags have ScriptCode and some don't:

tag 0:
  sig      'desc'
  type     'desc'
  offset   264
  size     116
TextDescription:
  ASCII data, length 8 chars:
    0x0000: sRGB\000\000\000
  No Unicode data
  ScriptCode Data, Code 0x0, length 9 chars
    0x0000: 00 73 00 52 00 47 00 42 00

tag 1:
  sig      'dmnd'
  type     'desc'
  offset   380
  size     128
TextDescription:
  ASCII data, length 12 chars:
    0x0000: Darktable\000\000
  No Unicode data
  No ScriptCode data

tag 2:
  sig      'dmdd'
  type     'desc'
  offset   508
  size     116
TextDescription:
  ASCII data, length 8 chars:
    0x0000: sRGB\000\000\000
  No Unicode data
  ScriptCode Data, Code 0x0, length 9 chars
    0x0000: 00 73 00 52 00 47 00 42 00

All these tags are added in the same way:

  cmsMLU *mlu0 = cmsMLUalloc(NULL, 1);
  cmsMLUsetASCII(mlu0, "en", "US", "sRGB");
  cmsMLU *mlu1 = cmsMLUalloc(NULL, 1);
  cmsMLUsetASCII(mlu1, "en", "US", "Darktable");
  cmsMLU *mlu2 = cmsMLUalloc(NULL, 1);
  cmsMLUsetASCII(mlu2, "en", "US", "sRGB");
  cmsWriteTag(hsRGB, cmsSigProfileDescriptionTag, mlu0);
  cmsWriteTag(hsRGB, cmsSigDeviceMfgDescTag, mlu1);
  cmsWriteTag(hsRGB, cmsSigDeviceModelDescTag, mlu2);
  cmsMLUfree(mlu0);
  cmsMLUfree(mlu1);
  cmsMLUfree(mlu2);

Do you have any clue why they would end up differently in the ICC
(I've attached the ICC in question)?

I'm not particularly clear on what ScriptCode is, glancing over the
ICCv2 spec didn't clear anything up either...

Regards,
Pascal de Bruijn