1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
const std = @import("std");
pub const Backend = enum {
const WasmTarget = @import("../os/wasm/target.zig").Target;
/// FreeType for font rendering with no font discovery enabled.
freetype,
/// Fontconfig for font discovery and FreeType for font rendering.
fontconfig_freetype,
/// CoreText for font discovery, rendering, and shaping (macOS).
coretext,
/// CoreText for font discovery, FreeType for rendering, and
/// HarfBuzz for shaping (macOS).
coretext_freetype,
/// CoreText for font discovery and rendering, HarfBuzz for shaping
coretext_harfbuzz,
/// CoreText for font discovery and rendering, no shaping.
coretext_noshape,
/// Use the browser font system and the Canvas API (wasm). This limits
/// the available fonts to browser fonts (anything Canvas natively
/// supports).
web_canvas,
/// Returns the default backend for a build environment. This is
/// meant to be called at comptime by the build.zig script. To get the
/// backend look at build_options.
pub fn default(
target: std.Target,
wasm_target: WasmTarget,
) Backend {
if (target.cpu.arch == .wasm32) {
return switch (wasm_target) {
.browser => .web_canvas,
};
}
// macOS also supports "coretext_freetype" but there is no scenario
// that is the default. It is only used by people who want to
// self-compile Ghostty and prefer the freetype aesthetic.
return if (target.os.tag.isDarwin()) .coretext else .fontconfig_freetype;
}
// All the functions below can be called at comptime or runtime to
// determine if we have a certain dependency.
pub fn hasFreetype(self: Backend) bool {
return switch (self) {
.freetype,
.fontconfig_freetype,
.coretext_freetype,
=> true,
.coretext,
.coretext_harfbuzz,
.coretext_noshape,
.web_canvas,
=> false,
};
}
pub fn hasCoretext(self: Backend) bool {
return switch (self) {
.coretext,
.coretext_freetype,
.coretext_harfbuzz,
.coretext_noshape,
=> true,
.freetype,
.fontconfig_freetype,
.web_canvas,
=> false,
};
}
pub fn hasFontconfig(self: Backend) bool {
return switch (self) {
.fontconfig_freetype => true,
.freetype,
.coretext,
.coretext_freetype,
.coretext_harfbuzz,
.coretext_noshape,
.web_canvas,
=> false,
};
}
pub fn hasHarfbuzz(self: Backend) bool {
return switch (self) {
.freetype,
.fontconfig_freetype,
.coretext_freetype,
.coretext_harfbuzz,
=> true,
.coretext,
.coretext_noshape,
.web_canvas,
=> false,
};
}
};
|
