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This commit is contained in:
John Alanbrook 2022-06-23 21:15:43 +00:00
parent 3842a1a9ff
commit 2e267e0b39
1 changed files with 11 additions and 7 deletions
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16
source/engine/font.c
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@ -8,8 +8,6 @@
#include <limits.h> #include <limits.h>
#include <stdlib.h> #include <stdlib.h>
#include <stb_truetype.h> #include <stb_truetype.h>
static uint32_t VBO = 0; static uint32_t VBO = 0;
@ -34,17 +32,23 @@ struct sFont *MakeFont(const char *fontfile, int height)
snprintf(fontpath, 256, "fonts/%s", fontfile); snprintf(fontpath, 256, "fonts/%s", fontfile);
stbtt_fontinfo fontinfo = { 0 }; stbtt_fontinfo fontinfo = { 0 };
int ascent = 0; int ascent, descent, linegap;
fread(ttf_buffer, 1, 1<<25, fopen(fontpath, "rb")); fread(ttf_buffer, 1, 1<<25, fopen(fontpath, "rb"));
stbtt_InitFont(&fontinfo, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0)); if (!stbtt_InitFont(&fontinfo, ttf_buffer, 0)) {
printf("failed\n");
}
stbtt_GetFontVMetrics(&fontinfo, &ascent, 0, 0); float scale = stbtt_ScaleForPixelHeight(&fontinfo, 64);
stbtt_GetFontVMetrics(&fontinfo, &ascent, &descent, &linegap);
ascent = roundf(ascent*scale);
descent=roundf(descent*scale);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1); glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
for (unsigned char c = 0; c < 128; c++) { for (unsigned char c = 32; c < 128; c++) {
unsigned char *bitmap; unsigned char *bitmap;
int advance, lsb, w, h; int advance, lsb, w, h;
stbtt_GetCodepointHMetrics(&fontinfo, c, &advance, &lsb); stbtt_GetCodepointHMetrics(&fontinfo, c, &advance, &lsb);