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Alternate font support for MDA and Hercules

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This commit is contained in:
Jasmine Iwanek
2025-05-26 04:38:28 -04:00
parent 09e107e008
commit 8e895903ed
7 changed files with 176 additions and 98 deletions
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144
src/video/video.c
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@@ -1006,76 +1006,73 @@ video_force_resize_set_monitor(uint8_t res, int monitor_index)
}
void
loadfont_common(FILE *f, int format)
loadfont_common(FILE *fp, int format)
{
int c;
int d;
switch (format) {
case 0: /* MDA */
for (c = 0; c < 256; c++)
for (d = 0; d < 8; d++)
fontdatm[c][d] = fgetc(f) & 0xff;
for (c = 0; c < 256; c++)
for (d = 0; d < 8; d++)
fontdatm[c][d + 8] = fgetc(f) & 0xff;
(void) fseek(f, 4096 + 2048, SEEK_SET);
for (c = 0; c < 256; c++)
for (d = 0; d < 8; d++)
fontdat[c][d] = fgetc(f) & 0xff;
for (uint16_t c = 0; c < 256; c++) /* 8x14 MDA in 8x8 cell (lines 0-7) */
for (uint8_t d = 0; d < 8; d++)
fontdatm[c][d] = fgetc(fp) & 0xff;
for (uint16_t c = 0; c < 256; c++) /* 8x14 MDA in 8x8 cell (lines 8-13 + padding lines) */
for (uint8_t d = 0; d < 8; d++)
fontdatm[c][d + 8] = fgetc(fp) & 0xff;
(void) fseek(fp, 4096 + 2048, SEEK_SET);
for (uint16_t c = 0; c < 256; c++)
for (uint8_t d = 0; d < 8; d++) /* 8x8 CGA (thick, primary) */
fontdat[c][d] = fgetc(fp) & 0xff;
break;
case 1: /* PC200 */
for (d = 0; d < 4; d++) {
for (uint8_t d = 0; d < 4; d++) {
/* There are 4 fonts in the ROM */
for (c = 0; c < 256; c++) /* 8x14 MDA in 8x16 cell */
(void) !fread(&fontdatm[256 * d + c][0], 1, 16, f);
for (c = 0; c < 256; c++) { /* 8x8 CGA in 8x16 cell */
(void) !fread(&fontdat[256 * d + c][0], 1, 8, f);
fseek(f, 8, SEEK_CUR);
for (uint16_t c = 0; c < 256; c++) /* 8x14 MDA in 8x16 cell */
(void) !fread(&fontdatm[256 * d + c][0], 1, 16, fp);
for (uint16_t c = 0; c < 256; c++) { /* 8x8 CGA in 8x16 cell */
(void) !fread(&fontdat[256 * d + c][0], 1, 8, fp);
fseek(fp, 8, SEEK_CUR);
}
}
break;
default:
case 2: /* CGA */
for (c = 0; c < 256; c++)
for (d = 0; d < 8; d++)
fontdat[c][d] = fgetc(f) & 0xff;
for (uint16_t c = 0; c < 256; c++)
for (uint8_t d = 0; d < 8; d++)
fontdat[c][d] = fgetc(fp) & 0xff;
break;
case 3: /* Wyse 700 */
for (c = 0; c < 512; c++)
for (d = 0; d < 32; d++)
fontdatw[c][d] = fgetc(f) & 0xff;
for (uint16_t c = 0; c < 512; c++)
for (uint8_t d = 0; d < 32; d++)
fontdatw[c][d] = fgetc(fp) & 0xff;
break;
case 4: /* MDSI Genius */
for (c = 0; c < 256; c++)
for (d = 0; d < 16; d++)
fontdat8x12[c][d] = fgetc(f) & 0xff;
for (uint16_t c = 0; c < 256; c++)
for (uint8_t d = 0; d < 16; d++)
fontdat8x12[c][d] = fgetc(fp) & 0xff;
break;
case 5: /* Toshiba 3100e */
for (d = 0; d < 2048; d += 512) { /* Four languages... */
for (c = d; c < d + 256; c++) {
(void) !fread(&fontdatm[c][8], 1, 8, f);
case 5: /* Toshiba 3100e */
for (uint16_t d = 0; d < 2048; d += 512) { /* Four languages... */
for (uint16_t c = d; c < d + 256; c++) {
(void) !fread(&fontdatm[c][8], 1, 8, fp);
}
for (c = d + 256; c < d + 512; c++) {
(void) !fread(&fontdatm[c][8], 1, 8, f);
for (uint16_t c = d + 256; c < d + 512; c++) {
(void) !fread(&fontdatm[c][8], 1, 8, fp);
}
for (c = d; c < d + 256; c++) {
(void) !fread(&fontdatm[c][0], 1, 8, f);
for (uint16_t c = d; c < d + 256; c++) {
(void) !fread(&fontdatm[c][0], 1, 8, fp);
}
for (c = d + 256; c < d + 512; c++) {
(void) !fread(&fontdatm[c][0], 1, 8, f);
for (uint16_t c = d + 256; c < d + 512; c++) {
(void) !fread(&fontdatm[c][0], 1, 8, fp);
}
fseek(f, 4096, SEEK_CUR); /* Skip blank section */
for (c = d; c < d + 256; c++) {
(void) !fread(&fontdat[c][0], 1, 8, f);
fseek(fp, 4096, SEEK_CUR); /* Skip blank section */
for (uint16_t c = d; c < d + 256; c++) {
(void) !fread(&fontdat[c][0], 1, 8, fp);
}
for (c = d + 256; c < d + 512; c++) {
(void) !fread(&fontdat[c][0], 1, 8, f);
for (uint16_t c = d + 256; c < d + 512; c++) {
(void) !fread(&fontdat[c][0], 1, 8, fp);
}
}
break;
@@ -1087,65 +1084,64 @@ loadfont_common(FILE *f, int format)
if (!fontdatksc5601_user)
fontdatksc5601_user = malloc(192 * sizeof(dbcs_font_t));
for (c = 0; c < 16384; c++) {
for (d = 0; d < 32; d++)
fontdatksc5601[c].chr[d] = fgetc(f) & 0xff;
for (uint32_t c = 0; c < 16384; c++) {
for (uint8_t d = 0; d < 32; d++)
fontdatksc5601[c].chr[d] = fgetc(fp) & 0xff;
}
break;
case 7: /* Sigma Color 400 */
/* The first 4k of the character ROM holds an 8x8 font */
for (c = 0; c < 256; c++) {
(void) !fread(&fontdat[c][0], 1, 8, f);
fseek(f, 8, SEEK_CUR);
for (uint16_t c = 0; c < 256; c++) {
(void) !fread(&fontdat[c][0], 1, 8, fp);
fseek(fp, 8, SEEK_CUR);
}
/* The second 4k holds an 8x16 font */
for (c = 0; c < 256; c++) {
if (fread(&fontdatm[c][0], 1, 16, f) != 16)
for (uint16_t c = 0; c < 256; c++) {
if (fread(&fontdatm[c][0], 1, 16, fp) != 16)
fatal("loadfont(): Error reading 8x16 font in Sigma Color 400 mode, c = %i\n", c);
}
break;
case 8: /* Amstrad PC1512, Toshiba T1000/T1200 */
for (c = 0; c < 2048; c++) /* Allow up to 2048 chars */
for (d = 0; d < 8; d++)
fontdat[c][d] = fgetc(f) & 0xff;
case 8: /* Amstrad PC1512, Toshiba T1000/T1200 */
for (uint16_t c = 0; c < 2048; c++) /* Allow up to 2048 chars */
for (uint8_t d = 0; d < 8; d++)
fontdat[c][d] = fgetc(fp) & 0xff;
break;
case 9: /* Image Manager 1024 native font */
for (c = 0; c < 256; c++)
(void) !fread(&fontdat12x18[c][0], 1, 36, f);
for (uint16_t c = 0; c < 256; c++)
(void) !fread(&fontdat12x18[c][0], 1, 36, fp);
break;
case 10: /* Pravetz */
for (c = 0; c < 1024; c++) /* Allow up to 1024 chars */
for (d = 0; d < 8; d++)
fontdat[c][d] = fgetc(f) & 0xff;
case 10: /* Pravetz */
for (uint16_t c = 0; c < 1024; c++) /* Allow up to 1024 chars */
for (uint8_t d = 0; d < 8; d++)
fontdat[c][d] = fgetc(fp) & 0xff;
break;
case 11: /* PC200 */
for (d = 0; d < 4; d++) {
for (uint8_t d = 0; d < 4; d++) {
/* There are 4 fonts in the ROM */
for (c = 0; c < 256; c++) /* 8x14 MDA in 8x16 cell */
(void) !fread(&fontdatm2[256 * d + c][0], 1, 16, f);
for (c = 0; c < 256; c++) { /* 8x8 CGA in 8x16 cell */
(void) !fread(&fontdat2[256 * d + c][0], 1, 8, f);
fseek(f, 8, SEEK_CUR);
for (uint16_t c = 0; c < 256; c++) /* 8x14 MDA in 8x16 cell */
(void) !fread(&fontdatm2[256 * d + c][0], 1, 16, fp);
for (uint16_t c = 0; c < 256; c++) { /* 8x8 CGA in 8x16 cell */
(void) !fread(&fontdat2[256 * d + c][0], 1, 8, fp);
fseek(fp, 8, SEEK_CUR);
}
}
break;
}
(void) fclose(f);
(void) fclose(fp);
}
void
loadfont_ex(char *s, int format, int offset)
loadfont_ex(char *fn, int format, int offset)
{
FILE *fp;
fp = rom_fopen(s, "rb");
fp = rom_fopen(fn, "rb");
if (fp == NULL)
return;
@@ -1154,9 +1150,9 @@ loadfont_ex(char *s, int format, int offset)
}
void
loadfont(char *s, int format)
loadfont(char *fn, int format)
{
loadfont_ex(s, format, 0);
loadfont_ex(fn, format, 0);
}
uint32_t