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stb_truetype: fix SDF handling of multiple move_to commands in a row

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This commit is contained in:
Sean Barrett
2021-07-07 01:21:37 -07:00
parent ca0e6d06d8
commit fc5b791228
2 changed files with 38 additions and 11 deletions
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30
tests/test_truetype.c
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@ -42,9 +42,13 @@ int main(int argc, char **argv)
//debug();
// @TODO: why is minglui.ttc failing?
fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/mingliu.ttc", "rb"));
//fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/mingliu.ttc", "rb"));
//fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/x/DroidSansMono.ttf", "rb"));
fread(ttf_buffer, 1, 1<<25, fopen(argc > 3 ? argv[3] : "c:/windows/fonts/DejaVuSans.ttf", "rb"));
stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
#if 0
{
static stbtt_pack_context pc;
static stbtt_packedchar cd[256];
@ -54,6 +58,27 @@ int main(int argc, char **argv)
stbtt_PackFontRange(&pc, ttf_buffer, 0, 32.0, 0, 256, cd);
stbtt_PackEnd(&pc);
}
#endif
{
static stbtt_pack_context pc;
static stbtt_packedchar cd[256];
static unsigned char atlas[1024*1024];
unsigned char *data;
stbtt_PackBegin(&pc, atlas, 1024,1024,1024,1,NULL);
stbtt_PackFontRange(&pc, ttf_buffer, 0, 32.0, 'u', 1, cd);
stbtt_PackEnd(&pc);
data = stbtt_GetCodepointSDF(&font, stbtt_ScaleForPixelHeight(&font,32.0), 'u', 4, 128, 128/4, &w,&h,&i,&j);
for (j=0; j < h; ++j) {
for (i=0; i < w; ++i) {
putchar(" .:ioVM@"[data[j*w+i]>>5]);
}
putchar('\n');
}
return 0;
}
#if 0
stbtt_BakeFontBitmap(ttf_buffer,stbtt_GetFontOffsetForIndex(ttf_buffer,0), 40.0, temp_bitmap[0],BITMAP_W,BITMAP_H, 32,96, cdata); // no guarantee this fits!
@ -92,7 +117,6 @@ int main(int argc, char **argv)
return 0;
#endif
stbtt_InitFont(&font, ttf_buffer, stbtt_GetFontOffsetForIndex(ttf_buffer,0));
bitmap = stbtt_GetCodepointBitmap(&font, 0,stbtt_ScaleForPixelHeight(&font, (float)s), c, &w, &h, 0,0);
for (j=0; j < h; ++j) {