Mercurial > repos > blastem
diff nuklear_ui/font.c @ 1541:f8ef74e7c800
Merged nuklear_ui into default
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Sun, 25 Mar 2018 12:01:49 -0700 |
parents | 4f6e8acd7b6a |
children | 24508cb54f87 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/nuklear_ui/font.c Sun Mar 25 12:01:49 2018 -0700 @@ -0,0 +1,57 @@ +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include "../util.h" +#include "sfnt.h" + +char *default_font_path(void) +{ + FILE *fc_pipe = popen("fc-match -f '%{file}'", "r"); + if (!fc_pipe) { + return NULL; + } + size_t buf_size = 128; + char *buffer = NULL; + size_t total = 0, read = 0; + do { + total += read; + buf_size *= 2; + buffer = realloc(buffer, buf_size); + if (!buffer) { + return NULL; + } + read = fread(buffer, 1, buf_size - total, fc_pipe); + } while (read == (buf_size - total)); + total += read; + buffer[total] = 0; + + return buffer; +} + +uint8_t *default_font(uint32_t *size_out) +{ + char *path = default_font_path(); + if (!path) { + goto error; + } + FILE *f = fopen(path, "rb"); + if (!f) { + goto error; + } + long size = file_size(f); + uint8_t *buffer = malloc(size); + if (size != fread(buffer, 1, size, f)) { + fclose(f); + goto error; + } + fclose(f); + sfnt_container *sfnt = load_sfnt(buffer, size); + if (!sfnt) { + free(buffer); + goto error; + } + return sfnt_flatten(sfnt->tables, size_out); +error: + //TODO: try to find a suitable font in /usr/share/fonts as a fallback + return NULL; +} \ No newline at end of file