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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef __riscos__
#include "swis.h"
#endif
#include "fm.h"
#include "glyph.h"
#include "intmetrics.h"
#include "utils.h"
struct intmetrics_header {
char name[40];
int a;
int b;
char nlo;
char version;
char flags;
char nhi;
};
static short mapsize;
static char *character_map = 0;
/* we don't use these */
// static short *x0;
// static short *y0;
// static short *x1;
// static short *y1;
static short *xwidthtab = 0;
// static short *ywidthtab;
struct extra_data_offsets {
short misc;
short kern;
short res1;
short res2;
};
struct misc_area {
short x0;
short y0;
short x1;
short y1;
short default_x_offset;
short default_y_offset;
short italic_h_offset;
char underline_position;
char underline_thickness;
short cap_height;
short xheight;
short descender;
short ascender;
int reserved;
};
struct kern_pair_8 {
char left;
char right;
short x_kern;
short y_kern;
char list_end;
char area_end;
};
struct kern_pair_16 {
short left;
short right;
short x_kern;
short y_kern;
short list_end;
short area_end;
};
/**
* Write font metrics to file
*
* \param savein Location to save in
* \param name Font name
* \param glyph_list List of all glyphs in font
* \param list_size Size of glyph list
* \param metrics Global font metrics
*/
ttf2f_result write_intmetrics(const char *savein,
const char *name,struct glyph *glyph_list, int list_size,
struct font_metrics *metrics, void (*callback)(int progress))
{
struct intmetrics_header header;
int charmap_size = 0;
unsigned int xwidthtab_size = 0;
int i;
struct glyph *g;
char out[1024];
FILE *output;
UNUSED(metrics);
/* allow for chunk 0 */
xwidthtab = calloc(33, sizeof(short));
if (xwidthtab == NULL)
return TTF2F_RESULT_NOMEM;
xwidthtab_size = 32;
/* create xwidthtab - char code is now the index */
for (i = 0; i != list_size; i++) {
g = &glyph_list[i];
callback((i * 100) / list_size);
ttf2f_poll(1);
xwidthtab_size++;
xwidthtab[i+32] = g->width;
xwidthtab = realloc(xwidthtab,
(xwidthtab_size+1) * sizeof(short));
if (xwidthtab == NULL)
return TTF2F_RESULT_NOMEM;
}
/* fill in header */
snprintf(header.name, 40, "%s", name);
memset(header.name + (strlen(name) >= 40 ? 39 : strlen(name)), 0xD,
40 - (strlen(name) >= 40 ? 39 : strlen(name)));
header.a = header.b = 16;
header.version = 0x2;
header.flags = 0x25;
header.nhi = xwidthtab_size / 256;
header.nlo = xwidthtab_size % 256;
mapsize = charmap_size;
snprintf(out, 1024, "%s" DIR_SEP "IntMetrics", savein);
if ((output = fopen(out, "wb+")) == NULL) {
free(xwidthtab);
return TTF2F_RESULT_OPEN;
}
if (fwrite((void*)&header, sizeof(struct intmetrics_header),
1, output) != 1) goto error_write;
if (fputc(mapsize & 0xFF, output) == EOF) goto error_write;
if (fputc((mapsize & 0xFF00) >> 8, output) == EOF) goto error_write;
if (fwrite(character_map, sizeof(char), charmap_size, output)
!= (size_t)charmap_size) goto error_write;
if (fwrite(xwidthtab, sizeof(short), xwidthtab_size, output)
!= xwidthtab_size) goto error_write;
fclose(output);
#ifdef __riscos__
/* set type */
_swix(OS_File, _INR(0,2), 18, out, 0xFF6);
#endif
if (character_map)
free(character_map);
free(xwidthtab);
return TTF2F_RESULT_OK;
error_write:
free(character_map);
free(xwidthtab);
fclose(output);
return TTF2F_RESULT_WRITE;
}
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