| | <<<Back 1 day (to 2021/01/21) | Fwd 1 day (to 2021/01/23)>>> | 20210122 |
| artifexirc-bot | <sebras> @ator I have reduced the file with the problematic font causing issues with Freetype new T1 engine to the essentials. first it strokes the font then it fills it. | 04:19.17 |
| | <sebras> I've tried increasing the font size. when I do so I can see that the tip of the 'a' has a small hook. when using a small font size I'm assuming this hook is relatively bigger. | 04:21.22 |
| | <sebras> when I use Freetype's old T1 engine the hook is not there. | 04:21.33 |
| | <sebras> I'll dm you the link to my test files. do you think this is enough to report to upstream? | 04:22.30 |
| | <sebras> I'm not yet fluent enough in T1 fonts to debug this further I think. | 04:33.44 |
| | <ator> needs an issue-small-font-only-stroking.pdf :) | 11:15.01 |
| | <ator> strange that this only happens with the new engine, one would think the stroking module is unrelated | 11:18.22 |
| | <ator> do_render_ft_stroked_glyph | 11:19.07 |
| | <Robin_Watts> @ator I was buried in a mass of unicode and OCR yesterday. Where did we land with the snapshot stuff? | 12:25.32 |
| | <Robin_Watts> We had objects with bad lengths or something? | 12:25.42 |
| | <Robin_Watts> I see it in the logs. will try to look at that. | 12:27.52 |
| | <ator> yeah. somehow it looks like stream objects make it into the journal while being incomplete | 12:28.17 |
| | <ator> as if the 'Length' property update when updating the stream goes into its own journal entry | 12:28.40 |
| | <ator> at least that's what it looked like when looking at the written output, where a given AP stream is listed twice in sequential updates, first with no /Length and then with a /Length | 12:29.20 |
| | <Robin_Watts> Ah, so pdf_add_stream calls pdf_update_stream. | 13:09.01 |
| | <Robin_Watts> That updates the stream, then tries to update the Length. | 13:09.13 |
| | <Robin_Watts> We detect the object change when the Length is about to be changed, and copy the stream, which has already been updated. | 13:09.47 |
| | <sebras> btw, I noticed when cleaning a file yesterday that one streams had /Length /Length1 /Length2 and /Length3 entries. that seems odd, but I haven't investigated further. is it due to MuPDF out was it there from the beginning? I don't know yet. | 16:07.42 |
| | <Robin_Watts> I think that's a PDF spec thing isn't it? | 16:09.28 |
| | <Robin_Watts> See page 467 of pdf_reference17.pdf | 16:09.54 |
| | <Robin_Watts> Embedded font stream dictionaries Table 5.24 | 16:10.11 |
| | <Robin_Watts> Type1 fonts have Length1/Length2/Length3 tags. | 16:10.31 |
| | <sebras> oh! | 16:15.09 |
| | <Robin_Watts> @ator @sebras More commits on robin/master | 17:44.55 |
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