diff options
| author | rcombs <rcombs@rcombs.me> | 2023-01-22 15:56:52 -0600 |
|---|---|---|
| committer | Oleg Oshmyan <chortos@inbox.lv> | 2023-02-17 00:09:18 +0200 |
| commit | e50e0002f5567d6005ce61ca8a469a1dae57d10f (patch) | |
| tree | 934e48d54a03148610e30b87714440de1273d4be /libass/ass_font.c | |
| parent | 6f026e0e5517cbf5873fe827207afa34a5551e03 (diff) | |
| download | libass-e50e0002f5567d6005ce61ca8a469a1dae57d10f.tar.bz2 libass-e50e0002f5567d6005ce61ca8a469a1dae57d10f.tar.xz | |
ass_font: match GDI's faux-italics
GDI uses this same matrix.
Diffstat (limited to 'libass/ass_font.c')
| -rw-r--r-- | libass/ass_font.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/libass/ass_font.c b/libass/ass_font.c index de59c7f..edf42b0 100644 --- a/libass/ass_font.c +++ b/libass/ass_font.c @@ -560,6 +560,21 @@ static void ass_glyph_embolden(FT_GlyphSlot slot) } /** + * Slightly italicize a glyph + */ +static void ass_glyph_italicize(FT_GlyphSlot slot) +{ + FT_Matrix xfrm = { + .xx = 0x10000L, + .yx = 0x00000L, + .xy = 0x05700L, + .yy = 0x10000L, + }; + + FT_Outline_Transform(&slot->outline, &xfrm); +} + +/** * \brief Get glyph and face index * Finds a face that has the requested codepoint and returns both face * and glyph index. @@ -662,7 +677,7 @@ bool ass_font_get_glyph(ASS_Font *font, int face_index, int index, return false; } if (!(face->style_flags & FT_STYLE_FLAG_ITALIC) && (font->desc.italic > 55)) - FT_GlyphSlot_Oblique(face->glyph); + ass_glyph_italicize(face->glyph); if (font->desc.bold > ass_face_get_weight(face) + 150) ass_glyph_embolden(face->glyph); return true; |