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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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35
src/include/86box/video.h
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@@ -36,6 +36,10 @@ using atomic_int = std::atomic_int;
#define getcolg(color) (((color) >> 8) & 0xFF) #define getcolg(color) (((color) >> 8) & 0xFF)
#define getcolb(color) ((color) & 0xFF) #define getcolb(color) ((color) & 0xFF)
#ifdef __cplusplus
extern "C" {
#endif
enum { enum {
VID_NONE = 0, VID_NONE = 0,
VID_INTERNAL VID_INTERNAL
@@ -49,10 +53,6 @@ enum {
FULLSCR_SCALE_INT43 FULLSCR_SCALE_INT43
}; };
#ifdef __cplusplus
extern "C" {
#endif
enum { enum {
VIDEO_ISA = 0, VIDEO_ISA = 0,
VIDEO_MCA, VIDEO_MCA,
@@ -71,6 +71,11 @@ enum {
#define VIDEO_FLAG_TYPE_SECONDARY VIDEO_FLAG_TYPE_SPECIAL #define VIDEO_FLAG_TYPE_SECONDARY VIDEO_FLAG_TYPE_SPECIAL
#define FONT_IBM_MDA_437_PATH "roms/video/mda/mda.rom"
#define FONT_IBM_MDA_437_NORDIC_PATH "roms/video/mda/4733197.bin"
#define FONT_KAM_PATH "roms/video/mda/kam.bin"
#define FONT_KAMCL16_PATH "roms/video/mda/kamcl16.bin"
typedef struct video_timings_t { typedef struct video_timings_t {
int type; int type;
int write_b; int write_b;
@@ -189,15 +194,15 @@ extern uint32_t pal_lookup[256];
#endif #endif
extern int video_fullscreen; extern int video_fullscreen;
extern int video_fullscreen_scale; extern int video_fullscreen_scale;
extern uint8_t fontdat[2048][8]; extern uint8_t fontdat[2048][8]; /* IBM CGA font */
extern uint8_t fontdatm[2048][16]; extern uint8_t fontdatm[2048][16]; /* IBM MDA font */
extern uint8_t fontdat2[2048][8]; extern uint8_t fontdat2[2048][8]; /* IBM CGA 2nd instance font */
extern uint8_t fontdatm2[2048][16]; extern uint8_t fontdatm2[2048][16]; /* IBM MDA 2nd instance font */
extern uint8_t fontdatw[512][32]; extern uint8_t fontdatw[512][32]; /* Wyse700 font */
extern uint8_t fontdat8x12[256][16]; extern uint8_t fontdat8x12[256][16]; /* MDSI Genius font */
extern uint8_t fontdat12x18[256][36]; extern uint8_t fontdat12x18[256][36]; /* IM1024 font */
extern dbcs_font_t *fontdatksc5601; extern dbcs_font_t *fontdatksc5601; /* Korean KSC-5601 font */
extern dbcs_font_t *fontdatksc5601_user; extern dbcs_font_t *fontdatksc5601_user; /* Korean KSC-5601 user defined font */
extern uint32_t *video_6to8; extern uint32_t *video_6to8;
extern uint32_t *video_8togs; extern uint32_t *video_8togs;
extern uint32_t *video_8to32; extern uint32_t *video_8to32;
@@ -277,8 +282,8 @@ extern uint8_t video_force_resize_get_monitor(int monitor_index);
extern void video_force_resize_set_monitor(uint8_t res, int monitor_index); extern void video_force_resize_set_monitor(uint8_t res, int monitor_index);
extern void video_update_timing(void); extern void video_update_timing(void);
extern void loadfont_ex(char *s, int format, int offset); extern void loadfont_ex(char *fn, int format, int offset);
extern void loadfont(char *s, int format); extern void loadfont(char *fn, int format);
extern int get_actual_size_x(void); extern int get_actual_size_x(void);
extern int get_actual_size_y(void); extern int get_actual_size_y(void);

2
src/machine/m_amstrad.c
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@@ -2936,7 +2936,7 @@ machine_amstrad_init(const machine_t *model, int type)
break; break;
case AMS_PC1640: case AMS_PC1640:
loadfont("roms/video/mda/mda.rom", 0); loadfont(FONT_IBM_MDA_437_PATH, 0);
device_context(&vid_1640_device); device_context(&vid_1640_device);
ams->language = device_get_config_int("language"); ams->language = device_get_config_int("language");
vid_init_1640(ams); vid_init_1640(ams);

2
src/machine/m_pcjr.c
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@@ -1541,7 +1541,7 @@ machine_pcjr_init(UNUSED(const machine_t *model))
/* Initialize the video controller. */ /* Initialize the video controller. */
video_reset(gfxcard[0]); video_reset(gfxcard[0]);
loadfont("roms/video/mda/mda.rom", 0); loadfont(FONT_IBM_MDA_437_PATH, 0);
device_context(&pcjr_device); device_context(&pcjr_device);
pcjr_vid_init(pcjr); pcjr_vid_init(pcjr);
device_context_restore(); device_context_restore();

44
src/video/vid_hercules.c
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@@ -543,14 +543,33 @@ hercules_init(UNUSED(const device_t *info))
dev->vram = (uint8_t *) malloc(0x10000); dev->vram = (uint8_t *) malloc(0x10000);
switch(device_get_config_int("font")) {
case 0:
loadfont(FONT_IBM_MDA_437_PATH, 0);
break;
case 1:
loadfont(FONT_IBM_MDA_437_NORDIC_PATH, 0);
break;
case 2:
loadfont(FONT_KAM_PATH, 0);
break;
case 3:
loadfont(FONT_KAMCL16_PATH, 0);
break;
}
timer_add(&dev->timer, hercules_poll, dev, 1); timer_add(&dev->timer, hercules_poll, dev, 1);
mem_mapping_add(&dev->mapping, 0xb0000, 0x08000, mem_mapping_add(&dev->mapping, 0xb0000, 0x08000,
hercules_read, NULL, NULL, hercules_write, NULL, NULL, hercules_read, NULL, NULL,
NULL /*dev->vram*/, MEM_MAPPING_EXTERNAL, dev); hercules_write, NULL, NULL,
NULL /*dev->vram*/, MEM_MAPPING_EXTERNAL,
dev);
io_sethandler(0x03b0, 16, io_sethandler(0x03b0, 0x0010,
hercules_in, NULL, NULL, hercules_out, NULL, NULL, dev); hercules_in, NULL, NULL,
hercules_out, NULL, NULL,
dev);
for (uint16_t c = 0; c < 256; c++) { for (uint16_t c = 0; c < 256; c++) {
dev->cols[c][0][0] = dev->cols[c][1][0] = dev->cols[c][1][1] = 16; dev->cols[c][0][0] = dev->cols[c][1][0] = dev->cols[c][1][1] = 16;
@@ -642,6 +661,23 @@ static const device_config_t hercules_config[] = {
.selection = { { 0 } }, .selection = { { 0 } },
.bios = { { 0 } } .bios = { { 0 } }
}, },
{
.name = "font",
.description = "Font",
.type = CONFIG_SELECTION,
.default_string = NULL,
.default_int = 0,
.file_filter = NULL,
.spinner = { 0 },
.selection = {
{ .description = "US (CP 437)", .value = 0 },
{ .description = "IBM Nordic (CP 437-Nordic)", .value = 1 },
{ .description = "Czech Kamenicky (CP 895) #1", .value = 2 },
{ .description = "Czech Kamenicky (CP 895) #2", .value = 3 },
{ .description = "" }
},
.bios = { { 0 } }
},
{ .name = "", .description = "", .type = CONFIG_END } { .name = "", .description = "", .type = CONFIG_END }
// clang-format on // clang-format on
}; };

45
src/video/vid_mda.c
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@@ -317,8 +317,32 @@ mda_standalone_init(UNUSED(const device_t *info))
mda->vram = malloc(0x1000); mda->vram = malloc(0x1000);
mem_mapping_add(&mda->mapping, 0xb0000, 0x08000, mda_read, NULL, NULL, mda_write, NULL, NULL, NULL, MEM_MAPPING_EXTERNAL, mda); switch(device_get_config_int("font")) {
io_sethandler(0x03b0, 0x0010, mda_in, NULL, NULL, mda_out, NULL, NULL, mda); case 0:
loadfont(FONT_IBM_MDA_437_PATH, 0);
break;
case 1:
loadfont(FONT_IBM_MDA_437_NORDIC_PATH, 0);
break;
case 2:
loadfont(FONT_KAM_PATH, 0);
break;
case 3:
loadfont(FONT_KAMCL16_PATH, 0);
break;
}
mem_mapping_add(&mda->mapping, 0xb0000, 0x08000,
mda_read, NULL, NULL,
mda_write, NULL, NULL,
NULL, MEM_MAPPING_EXTERNAL,
mda);
io_sethandler(0x03b0, 0x0010,
mda_in, NULL, NULL,
mda_out, NULL, NULL,
mda);
mda_init(mda); mda_init(mda);
@@ -369,6 +393,23 @@ static const device_config_t mda_config[] = {
}, },
.bios = { { 0 } } .bios = { { 0 } }
}, },
{
.name = "font",
.description = "Font",
.type = CONFIG_SELECTION,
.default_string = NULL,
.default_int = 0,
.file_filter = NULL,
.spinner = { 0 },
.selection = {
{ .description = "US (CP 437)", .value = 0 },
{ .description = "IBM Nordic (CP 437-Nordic)", .value = 1 },
{ .description = "Czech Kamenicky (CP 895) #1", .value = 2 },
{ .description = "Czech Kamenicky (CP 895) #2", .value = 3 },
{ .description = "" }
},
.bios = { { 0 } }
},
{ .name = "", .description = "", .type = CONFIG_END } { .name = "", .description = "", .type = CONFIG_END }
// clang-format on // clang-format on
}; };

2
src/video/vid_table.c
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@@ -328,7 +328,7 @@ video_reset(int card)
card, machine_has_flags(machine, MACHINE_VIDEO) ? 1 : 0); card, machine_has_flags(machine, MACHINE_VIDEO) ? 1 : 0);
monitor_index_global = 0; monitor_index_global = 0;
loadfont("roms/video/mda/mda.rom", 0); loadfont(FONT_IBM_MDA_437_PATH, 0);
for (uint8_t i = 1; i < GFXCARD_MAX; i ++) { for (uint8_t i = 1; i < GFXCARD_MAX; i ++) {
if ((card != VID_NONE) && !machine_has_flags(machine, MACHINE_VIDEO_ONLY) && if ((card != VID_NONE) && !machine_has_flags(machine, MACHINE_VIDEO_ONLY) &&

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