mirrors/kitty
1
0
Fork 0
mirror of https://github.com/kovidgoyal/kitty synced 2026-07-26 10:12:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Implement loading of bitmap fonts via FreeType

Browse Source 
Needed for some fallback fonts such as Apple Color Emoji
This commit is contained in:
Kovid Goyal
2017-11-11 08:07:18 +05:30
parent 51fe1e4dab
commit 4edfa9f4fd
1 changed files with 25 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
kitty/freetype.c
View File

@@ -6,6 +6,7 @@
*/ */
#include "fonts.h" #include "fonts.h"
#include "state.h"
#include <math.h> #include <math.h>
#include <structmember.h> #include <structmember.h>
#include <ft2build.h> #include <ft2build.h>
@@ -86,7 +87,30 @@ set_font_size(Face *self, FT_F26Dot6 char_width, FT_F26Dot6 char_height, FT_UInt
#endif #endif
} }
} else { } else {
set_freetype_error("Failed to set char size, with error:", error); return false; if (!self->is_scalable && self->face->num_fixed_sizes > 0) {
int32_t min_diff = INT32_MAX;
int desired_height = global_state.cell_height;
if (desired_height == 0) {
desired_height = ceil(((double)char_height / 64.) * (double)ydpi / 72.);
desired_height += ceil(0.2 * desired_height);
}
FT_Int strike_index = -1;
for (FT_Int i = 0; i < self->face->num_fixed_sizes; i++) {
int h = self->face->available_sizes[i].height;
int32_t diff = h < desired_height ? desired_height - h : h - desired_height;
if (diff < min_diff) {
min_diff = diff;
strike_index = i;
}
}
if (strike_index > -1) {
error = FT_Select_Size(self->face, strike_index);
if (error) { set_freetype_error("Failed to set char size for non-scaleable font, with error:", error); return false; }
return true;
}
}
set_freetype_error("Failed to set char size, with error:", error);
return false;
} }
return !error; return !error;
} }