Commit Graph

230 Commits

Author SHA1 Message Date
Francesco Abbate e82d766c2b Add more debug information in font's bitmap images 2020-06-07 00:15:38 +02:00
Francesco Abbate b978873a58 Fix font's descender rounding to integer 2020-06-07 00:14:41 +02:00
Francesco Abbate 81289d651e Move font resize in a separate function 2020-06-06 19:11:14 +02:00
Francesco Abbate 8e796831f2 Fixed integer signed comparison warning 2020-06-06 19:03:41 +02:00
Francesco Abbate 646a594e89 Add optional const qualifiers 2020-06-06 14:58:19 +02:00
Francesco Abbate 609b31a3b9 Remove unused debug code 2020-06-06 14:54:11 +02:00
Francesco Abbate 229037293b Fix error in glyph lcd convolution 2020-06-06 14:53:44 +02:00
Francesco Abbate dcf6b06629 Cleanup debug code 2020-06-06 13:08:39 +02:00
Francesco Abbate d17fde1b13 WIP: debugging stuff 2020-06-06 10:52:50 +02:00
Francesco Abbate 7b541b7de8 Do not use additional padding space in covers temporary array 2020-06-05 17:36:08 +02:00
Francesco Abbate ad8cdf2b92 Found a working condition but some details needs attention 2020-06-05 17:32:36 +02:00
Francesco Abbate 2e2db2d690 WIP testing ahead of time coverage convolution 2020-06-05 15:27:55 +02:00
Francesco Abbate baf8cec837 Cosmetic change to floor_div function 2020-06-05 14:16:08 +02:00
Francesco Abbate c5575de058 Move font renderer in a separate folder as a library 2020-06-04 18:52:01 +02:00
Francesco Abbate 2171ea17fb Add correct copyright information 2020-06-04 18:14:02 +02:00
Francesco Abbate ac36cfc59c Remove unused code files 2020-06-04 18:13:28 +02:00
Francesco Abbate a2a4668887 Add some comments and remove unused code 2020-06-04 17:23:39 +02:00
Francesco Abbate 67124de130 Add some explanatory comments 2020-06-04 17:17:10 +02:00
Francesco Abbate dc5b668389 Fix resize of bounding rectangle in BakeFontBitmap function 2020-06-04 17:08:55 +02:00
Francesco Abbate c433017d75 Fix remove unnecessary function templating 2020-06-04 16:46:37 +02:00
Francesco Abbate a0e7d16167 Implement subpixel LCD font rendering 2020-06-04 16:29:28 +02:00
U-ST\francesco abbate f61ffc4710 Add missing resource file on windows 2020-06-03 12:22:17 +02:00
Francesco Abbate 9bd4a8b9de Merge remote-tracking branch 'rxi/master' into font-rendering-tests 2020-06-02 23:28:52 +02:00
Francesco Abbate 01a4981210 Use static libgcc and libstdc++ when doing release build 2020-06-02 23:20:22 +02:00
Francesco Abbate e01ba599ba Optimize glyph set bitmap rectangles by trimming empty regions 2020-06-02 18:46:44 +02:00
Francesco Abbate d46cf80226 Adjust xadvance computation to use rounding instead of truncate 2020-06-02 17:52:02 +02:00
Francesco Abbate 39d7d49586 Reduce y padding in BakeFontBitmap 2020-06-02 17:51:26 +02:00
Francesco Abbate ae032cd185 Ember blender with gamma correction into FontRenderer 2020-06-02 17:18:52 +02:00
Francesco Abbate bc74b2860d Add gamma correct pixel blender 2020-06-02 14:47:06 +02:00
Francesco Abbate c41d6a82e1 Adjust BakeFontBitmap issues 2020-06-01 17:23:18 +02:00
Francesco Abbate c2949edcd7 Check for errors when loading fonts 2020-06-01 17:01:42 +02:00
Francesco Abbate b734390388 Use font_renderer in aGG font testing program 2020-06-01 16:57:33 +02:00
Francesco Abbate e291e7269a Hack to fix font size rendering to align with STB original rendering 2020-06-01 15:33:14 +02:00
Francesco Abbate c333425770 Remove stb from Meson dependencies for Lite 2020-06-01 15:28:07 +02:00
Francesco Abbate 98f5c16932 Remove unused variable 2020-06-01 15:16:07 +02:00
Francesco Abbate 5ca7471fc7 Cosmetic code's cleanup 2020-06-01 14:45:07 +02:00
Francesco Abbate fa06862177 Completely remove usage of stb_truetype 2020-06-01 14:43:45 +02:00
Francesco Abbate 91a82d8ae4 Add missing function to free FontRenderer 2020-06-01 14:42:57 +02:00
Francesco Abbate 0389bd000a Fix y offset in BakeFontBitmap
Compute Y offset more accurately and the way it is required in
renderer.c.

Instead of returning y offset wrt the baseline position returns it
wrt the top position (the baseline plus the font's ascent).
2020-06-01 14:33:46 +02:00
Francesco Abbate 4c6e15b66c Rename GlyphSetA to GlyphSet 2020-06-01 14:08:50 +02:00
Francesco Abbate 3a8cb05ea6 Replace stb's BakeBitmapFont with AGG based font's renderer 2020-06-01 12:56:23 +02:00
Francesco Abbate ca6b7bc902 Render correctly codepoints in agg font render test and fix bounding box 2020-06-01 11:26:25 +02:00
Francesco Abbate edb103716a Add function to render a single unicode codepoint 2020-06-01 11:25:22 +02:00
rxi f00d5d55df Version 1.06 2020-05-31 16:53:53 +01:00
Francesco Abbate 4ec521dd37 Add correct glyphs bitmap location rects with AGG 2020-05-31 13:53:27 +02:00
Francesco Abbate 7c57b1d6ca Adjust the font's height when creating the bitmap
Now the font's height to compute the bitmap is computed correcty but:

- STB truetype takes the pixel height as a float
- AGG takes an integer
2020-05-30 20:01:37 +02:00
Francesco Abbate 4334d09bab More notes 2020-05-30 18:07:40 +02:00
Francesco Abbate 103336945e Add pixel format to render font in bitmap format
The purpose it to add later subpixel by storing the bitmap with RGB
channels to have subpixel LCD coverage information.

The colorization and gamma blending will be done when blitting the glyph
on the destination surface.
2020-05-30 18:07:31 +02:00
Francesco Abbate 010966d60d Add correct font's height calculation using AGG
Compute the height like in renderer.c
2020-05-30 16:26:10 +02:00
Francesco Abbate 0fea5d9d25 Add in agg_font_render method to get face's units to em 2020-05-30 16:25:13 +02:00