On 5/23/2023 11:31 PM, Max Chernoff via ntg-context wrote:
Hi Hans,
I tried using the code from [1] for Noto Emoji in COLRv1 format [2]:
\startTEXpage \definefontfeature[colored][default][colr=9] \definedfont[Noto-COLRv1.ttf*colored] 🦆 % U+1F986 \stopTEXpage
but ConTeXt gives the following error:
fonts > otf loading > loading 'Noto-COLRv1.ttf', hash 'noto-colrv1' otf reader > table version 1 of 'colr' is partially supported for font Noto-COLRv1.ttf otf reader > unsupported colr type 2 paint format 0 otf reader > unsupported colr type 2 paint format %i otf reader > fatal error in file 'Noto-COLRv1.ttf': ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3575: table index is nil stack traceback: ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2344: in metamethod 'newindex' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3575: in metamethod 'index' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3677: in metamethod 'index' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3150: in upvalue 'getpaintoffset' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3564: in field '?' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3677: in metamethod 'index' ...ext/tex/texmf-context/tex/context/base/mkxl/font-dsp.lmt:3685: in local 'reader' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2089: in upvalue 'readtable' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2204: in upvalue 'readdata' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2257: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2240> [C]: in function 'xpcall' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2346: in upvalue 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otr.lua:2401: in field 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:160: in field 'load' ...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:624: in upvalue 'otftotfm' ...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:652: in function <...ext/tex/texmf-context/tex/context/base/mkxl/font-otl.lmt:651> (...tail calls...) ...ext/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:362: in function <...ext/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:350> (...tail calls...) ...ext/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:465: in field 'read' ...ext/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1371: in function <...ext/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1228> (...tail calls...) fonts > otf loading > loading failed due to read error fonts > defining > forced type 'ttf' of 'Noto-COLRv1' not found fonts > defining > unable to define 'Noto-COLRv1.ttf' as 'thedefinedfont--0' system > print height forced to paper height system > print width forced to paper width fonts > checking > char 🦆 (U+1F986) in font 'LMRoman10-Regular' with id 1: missing
From what I can tell, the Lua code is trying to read past the end of font file. I tried debugging the error further, but this is well beyond my understanding.
(Also, paintreaders[6--11] in font-dsp.lmt are missing "offset" in the function signature, and paintreaders itself is glboal. Maybe related?)
I'm using the current latest (2023.05.08 17:39). i'll check it but as usuel with these new things in fonts, one depends on fonts for testing so all that goes stepwise (as - hopefully correct - fonts come available)
Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------