83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <unistd.h>
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#include <syscall.h>
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#include <toaru/trace.h>
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#define TRACE_APP_NAME "font-server"
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#define FONT_PATH "/usr/share/fonts/"
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#define FONT(a,b) {a, FONT_PATH b}
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struct font_def {
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char * identifier;
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char * path;
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};
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static struct font_def fonts[] = {
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FONT("sans-serif", "DejaVuSans.ttf"),
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FONT("sans-serif.bold", "DejaVuSans-Bold.ttf"),
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FONT("sans-serif.italic", "DejaVuSans-Oblique.ttf"),
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FONT("sans-serif.bolditalic", "DejaVuSans-BoldOblique.ttf"),
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FONT("monospace", "DejaVuSansMono.ttf"),
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FONT("monospace.bold", "DejaVuSansMono-Bold.ttf"),
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FONT("monospace.italic", "DejaVuSansMono-Oblique.ttf"),
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FONT("monospace.bolditalic", "DejaVuSansMono-BoldOblique.ttf"),
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{NULL, NULL}
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};
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/**
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* Preload a font into the font cache.
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*
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* TODO This should probably be moved out of the compositor,
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* perhaps into a generic resource cache daemon. This
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* is mostly kept this way for legacy reasons - the old
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* compositor did it, but it was also using some of the
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* fonts for internal rendering. We don't draw any text.
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*/
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static char * precache_shmfont(char * ident, char * name) {
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FILE * f = fopen(name, "r");
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if (!f) return NULL;
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size_t s = 0;
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fseek(f, 0, SEEK_END);
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s = ftell(f);
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fseek(f, 0, SEEK_SET);
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size_t shm_size = s;
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char * font = (char *)syscall_shm_obtain(ident, &shm_size);
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assert((shm_size >= s) && "shm_obtain returned too little memory to load a font into!");
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fread(font, s, 1, f);
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fclose(f);
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return font;
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}
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/**
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* Load all of the fonts into the cache.
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*/
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static void load_fonts(char * server) {
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int i = 0;
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while (fonts[i].identifier) {
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char tmp[100];
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sprintf(tmp, "sys.%s.fonts.%s", server, fonts[i].identifier);
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TRACE("Loading font %s -> %s", fonts[i].path, tmp);
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if (!precache_shmfont(tmp, fonts[i].path)) {
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TRACE(" ... failed.");
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}
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++i;
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}
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}
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int main(int argc, char * argv[]) {
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load_fonts(getenv("DISPLAY"));
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while (1) {
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usleep(100000);
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}
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return 0;
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}
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