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olikraus / u8g2

U8glib library for monochrome displays, version 2
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Fail to bdfconv big u8x8 font #2403

Open My-point-is opened 3 months ago

My-point-is commented 3 months ago

I'm trying to obtain u8x8 font from .bdf with height greater than 1 tile but converter cuts result to 1x1 tile and I get glyph array with 8 bytes per symbol. Big u8x8 fonts from "u8x8.h" are being rendered correctly but I need unicode subset.

bdfconv -v -f 2 -m "1024-1071>128" 7x14.bdf -o u8x8_7x14_cl.c -n u8x8_7x14_cl Parse File 7x14.bdf: 2576 glyph(s) found Map: map_cmd_list='1024-1071>128' Map: exclude=0 from=1024/$400 to=1071/$42f map=128/$80 Reduce: Start Reduce: End CalculateMaxBBX: x=0, y=-2, w=8, h=7 CalculateMaxBBX: Encodings x=1024, y=1026, w=1024, h=1024 bf_CalculateMinMaxDWidth: dx_min=7, dx_max=7 bf_CalculateMinMaxDWidth: x_min=0, x_max=1 bf_CalculateMinMaxDWidth: Monospaced font. bf_CalculateMaxBitFieldSize: bbx.x=1, bbx.y=2, bbx.w=4, bbx.h=4, dwidth=5 Generate8x8Font: Tile size width=1 height=1 Generate8x8Font: Font size 388 Monospace Statistics: Max width extention 3, average width extention 2.1 Note: For font format 2 BBX mode has been set to 3 bf_WriteU8G2CByFilename: Write file 'u8x8_7x14_cl.c'

My-point-is commented 3 months ago

I get it. In order to get full size glyph u8x8 font you must specify tile width and tile height explicitly. So it should be like this instead: bdfconv -v -f 2 -th 1 -tv 2 -m "1024-1071>128" 7x14.bdf -o u8x8_7x14_cl.c -n u8x8_7x14_cl

May be it would be better if bdfconv caculated minimal tw and th to enclose the entire glyph in case tw and th are not specified explicitly?

olikraus commented 3 months ago

May be it would be better if bdfconv caculated minimal tw and th to enclose the entire glyph in case tw and th are not specified explicitly?

hmmm yes, but difficult.

My-point-is commented 3 months ago

hmmm yes, but difficult.

As alternative you could add conversion log Note: about tv, th not being specified in case it is possible to get the sign through conversion that glyphs are probably being bigger than just 1x1 in tiles. I think it would be helpfull for other users of converter as in my case I saw log line: Generate8x8Font: Tile size width=1 height=1 but it wasn't obvious for me that I need to specify those myself. Thank you for you great work!

olikraus commented 3 months ago

this i could indeed do...