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FEAT: Unicode support using NotoEmoji

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boreddevnl
2026-03-17 19:46:48 +01:00
parent 72baf6506d
commit 7eb55f3a59
6 changed files with 135 additions and 79 deletions
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119
src/wm/font_manager.c
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@@ -54,6 +54,11 @@ static inline uint32_t alpha_blend(uint32_t bg, uint32_t fg, uint8_t alpha) {
}
static ttf_font_t *default_font = NULL;
static ttf_font_t *fallback_font = NULL;
void font_manager_set_fallback_font(ttf_font_t *font) {
fallback_font = font;
}
#define MAX_LOADED_FONTS 8
typedef struct {
@@ -149,13 +154,49 @@ ttf_font_t* font_manager_load(const char *path, float size) {
return font;
}
void font_manager_render_char(ttf_font_t *font, int x, int y, char c, uint32_t color, void (*put_pixel_fn)(int, int, uint32_t)) {
if (!font) font = default_font;
if (!font) return;
font_manager_render_char_scaled(font, x, y, c, color, font->pixel_height, put_pixel_fn);
uint32_t utf8_decode(const char **s) {
const unsigned char *u = (const unsigned char *)*s;
if (!*u) return 0;
if (u[0] < 0x80) {
*s = (const char *)(u + 1);
return u[0];
}
if ((u[0] & 0xE0) == 0xC0 && (u[1] & 0xC0) == 0x80) {
*s = (const char *)(u + 2);
return ((u[0] & 0x1F) << 6) | (u[1] & 0x3F);
}
if ((u[0] & 0xF0) == 0xE0 && (u[1] & 0xC0) == 0x80 && (u[2] & 0xC0) == 0x80) {
*s = (const char *)(u + 3);
return ((u[0] & 0x0F) << 12) | ((u[1] & 0x3F) << 6) | (u[2] & 0x3F);
}
if ((u[0] & 0xF8) == 0xF0 && (u[1] & 0xC0) == 0x80 && (u[2] & 0xC0) == 0x80 && (u[3] & 0xC0) == 0x80) {
*s = (const char *)(u + 4);
return ((u[0] & 0x07) << 18) | ((u[1] & 0x3F) << 12) | ((u[2] & 0x3F) << 6) | (u[3] & 0x3F);
}
uint32_t codepoint = u[0];
*s = (const char *)(u + 1);
if (codepoint == 128) return 0x2014;
if (codepoint == 129) return 0x2013;
if (codepoint == 130) return 0x2022;
if (codepoint == 131) return 0x2026;
if (codepoint == 132) return 0x2122;
if (codepoint == 133) return 0x20AC;
if (codepoint == 134) return 0x00B7;
return codepoint;
}
void font_manager_render_char_scaled(ttf_font_t *font, int x, int y, char c, uint32_t color, float scale, void (*put_pixel_fn)(int, int, uint32_t)) {
void font_manager_render_char(ttf_font_t *font, int x, int y, uint32_t codepoint, uint32_t color, void (*put_pixel_fn)(int, int, uint32_t)) {
if (!font) font = default_font;
if (!font) return;
font_manager_render_char_scaled(font, x, y, codepoint, color, font->pixel_height, put_pixel_fn);
}
void font_manager_render_char_scaled(ttf_font_t *font, int x, int y, uint32_t codepoint, uint32_t color, float scale, void (*put_pixel_fn)(int, int, uint32_t)) {
if (!font) font = default_font;
if (!font) return;
@@ -166,15 +207,11 @@ void font_manager_render_char_scaled(ttf_font_t *font, int x, int y, char c, uin
float real_scale = stbtt_ScaleForPixelHeight(info, scale);
int codepoint = (unsigned char)c;
if (codepoint == 128) codepoint = 0x2014;
if (codepoint == 129) codepoint = 0x2013;
if (codepoint == 130) codepoint = 0x2022;
if (codepoint == 131) codepoint = 0x2026;
if (codepoint == 132) codepoint = 0x2122;
if (codepoint == 133) codepoint = 0x20AC;
if (codepoint == 134) codepoint = 0x00B7;
if (stbtt_FindGlyphIndex(info, codepoint) == 0 && fallback_font) {
info = (stbtt_fontinfo *)fallback_font->info;
real_scale = stbtt_ScaleForPixelHeight(info, scale);
}
bitmap = stbtt_GetCodepointBitmap(info, 0, real_scale, codepoint, &w, &h, &xoff, &yoff);
if (bitmap) {
@@ -193,7 +230,7 @@ void font_manager_render_char_scaled(ttf_font_t *font, int x, int y, char c, uin
}
}
void font_manager_render_char_sloped(ttf_font_t *font, int x, int y, char c, uint32_t color, float scale, float slope, void (*put_pixel_fn)(int, int, uint32_t)) {
void font_manager_render_char_sloped(ttf_font_t *font, int x, int y, uint32_t codepoint, uint32_t color, float scale, float slope, void (*put_pixel_fn)(int, int, uint32_t)) {
if (!font) font = default_font;
if (!font) return;
@@ -204,15 +241,11 @@ void font_manager_render_char_sloped(ttf_font_t *font, int x, int y, char c, uin
float real_scale = stbtt_ScaleForPixelHeight(info, scale);
int codepoint = (unsigned char)c;
if (codepoint == 128) codepoint = 0x2014;
if (codepoint == 129) codepoint = 0x2013;
if (codepoint == 130) codepoint = 0x2022;
if (codepoint == 131) codepoint = 0x2026;
if (codepoint == 132) codepoint = 0x2122;
if (codepoint == 133) codepoint = 0x20AC;
if (codepoint == 134) codepoint = 0x00B7;
if (stbtt_FindGlyphIndex(info, codepoint) == 0 && fallback_font) {
info = (stbtt_fontinfo *)fallback_font->info;
real_scale = stbtt_ScaleForPixelHeight(info, scale);
}
bitmap = stbtt_GetCodepointBitmap(info, 0, real_scale, codepoint, &w, &h, &xoff, &yoff);
if (bitmap) {
@@ -269,17 +302,33 @@ int font_manager_get_string_width_scaled(ttf_font_t *font, const char *s, float
int width = 0;
while (*s) {
int advance, lsb;
int codepoint = (unsigned char)*s;
if (codepoint == 128) codepoint = 0x2014;
if (codepoint == 129) codepoint = 0x2013;
if (codepoint == 130) codepoint = 0x2022;
if (codepoint == 131) codepoint = 0x2026;
if (codepoint == 132) codepoint = 0x2122;
if (codepoint == 133) codepoint = 0x20AC;
if (codepoint == 134) codepoint = 0x00B7;
stbtt_GetCodepointHMetrics(info, codepoint, &advance, &lsb);
width += (int)(advance * real_scale + 0.5f);
s++;
uint32_t codepoint = utf8_decode(&s);
stbtt_fontinfo *current_info = info;
float current_scale = real_scale;
if (stbtt_FindGlyphIndex(current_info, codepoint) == 0 && fallback_font) {
current_info = (stbtt_fontinfo *)fallback_font->info;
current_scale = stbtt_ScaleForPixelHeight(current_info, scale);
}
stbtt_GetCodepointHMetrics(current_info, codepoint, &advance, &lsb);
width += (int)(advance * current_scale + 0.5f);
}
return width;
}
int font_manager_get_codepoint_width_scaled(ttf_font_t *font, uint32_t codepoint, float scale) {
if (!font) font = default_font;
if (!font) return 0;
stbtt_fontinfo *info = (stbtt_fontinfo *)font->info;
float real_scale = stbtt_ScaleForPixelHeight(info, scale);
if (stbtt_FindGlyphIndex(info, codepoint) == 0 && fallback_font) {
info = (stbtt_fontinfo *)fallback_font->info;
real_scale = stbtt_ScaleForPixelHeight(info, scale);
}
int advance, lsb;
stbtt_GetCodepointHMetrics(info, codepoint, &advance, &lsb);
return (int)(advance * real_scale + 0.5f);
}