curioustorvald/Terrarum-sans-bitmap
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Latin Ext F and G

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minjaesong
2026-03-13 13:29:43 +09:00
parent 8daa968d80
commit 9d9efce9d4
17 changed files with 231 additions and 22 deletions
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12
Autokem/train.c
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@@ -2,6 +2,7 @@
#include "tga.h"
#include "nn.h"
#include "safetensor.h"
#include "unicode_lm.h"
#include <stdio.h>
#include <stdlib.h>
@@ -42,7 +43,8 @@ static void extract_shape_bits(int kerning_mask, float *shape) {
/* ---- Collect samples from one TGA ---- */
static int collect_from_sheet(const char *path, int is_xyswap, Sample *samples, int max_samples) {
static int collect_from_sheet(const char *path, int is_xyswap, int start_code,
Sample *samples, int max_samples) {
TgaImage *img = tga_read(path);
if (!img) {
fprintf(stderr, "Warning: cannot read %s\n", path);
@@ -76,6 +78,10 @@ static int collect_from_sheet(const char *path, int is_xyswap, Sample *samples,
}
if (width == 0) continue;
/* Skip modifier letters (superscripts/subscripts) */
if (start_code >= 0 && is_modifier_letter(start_code + index))
continue;
/* Read kerning data pixel at Y+6 */
uint32_t kern_pixel = tagify(tga_get_pixel(img, tag_x, tag_y + 6));
if ((kern_pixel & 0xFF) == 0) continue; /* no kern data */
@@ -170,7 +176,9 @@ int train_model(void) {
char fullpath[512];
snprintf(fullpath, sizeof(fullpath), "%s/%s", assets_dir, name);
int got = collect_from_sheet(fullpath, is_xyswap, all_samples + total, max_total - total);
int start_code = sheet_start_code(name);
int got = collect_from_sheet(fullpath, is_xyswap, start_code,
all_samples + total, max_total - total);
if (got > 0) {
printf(" %s: %d samples\n", name, got);
total += got;