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Add core options for region and hardware type overrides

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This commit is contained in:
negativeExponent 2020-04-20 22:15:02 +08:00
parent c7de12523f
commit 647daa269e
2 changed files with 76 additions and 16 deletions
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28
source/ports/libretro/libretro_core_options.h
View File

@ -49,6 +49,34 @@ extern "C" {
* frontend language definition */
struct retro_core_option_definition option_defs_us[] = {
{
"smsplus_hardware",
"Hardware (Restart)",
"Emulates which system hardware to use. Needs restart.",
{
{ "auto", NULL },
{ "master system", NULL },
{ "master system II", NULL },
{ "game gear", NULL },
{ "game gear (sms compatibility)", NULL },
{ "coleco", NULL },
{ NULL, NULL },
},
"auto"
},
{
"smsplus_region",
"Region (Restart)",
"Runs console at a specific video timing based on region. Needs restart.",
{
{ "auto", NULL },
{ "ntsc-u", NULL },
{ "pal", NULL },
{ "ntsc-j", NULL },
{ NULL, NULL },
},
"auto"
},
{
"smsplus_ntsc_filter",
"Blargg NTSC Filter",

64
source/ports/libretro/smsplus_libretro.c
View File

@ -36,7 +36,6 @@ static unsigned geometry_changed;
/* blargg NTSC */
static unsigned use_ntsc = 0;
static unsigned sony_decoder = 0;
static SMS_NTSC_IN_T *ntsc_screen = NULL;
static sms_ntsc_t *sms_ntsc = NULL;
@ -214,9 +213,9 @@ static int bios_init(void)
sprintf(bios_path, "%s%s", gdata.biosdir, "BIOS.col");
fd = fopen(bios_path, "rb");
if (sms.console == CONSOLE_COLECO)
{
fd = fopen(bios_path, "rb");
if(fd)
{
/* Seek to end of file, and get size */
@ -382,12 +381,53 @@ bool retro_load_game_special(unsigned id, const struct retro_game_info *info, si
return false;
}
static void check_variables(void)
static void check_variables(bool startup)
{
struct retro_variable var = { 0 };
unsigned old_ntsc = use_ntsc;
unsigned old_decode = sony_decoder;
var.value = NULL;
var.key = "smsplus_hardware";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && startup)
{
if (strcmp(var.value, "master system") == 0)
sms.console = CONSOLE_SMS;
else if (strcmp(var.value, "master system II") == 0)
sms.console = CONSOLE_SMS2;
else if (strcmp(var.value, "game gear") == 0)
sms.console = CONSOLE_GG;
else if (strcmp(var.value, "game gear (sms compatibility)") == 0)
sms.console = CONSOLE_GGMS;
else if (strcmp(var.value, "coleco") == 0)
{
sms.console = CONSOLE_COLECO;
cart.mapper = MAPPER_NONE;
}
}
var.value = NULL;
var.key = "smsplus_region";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value && startup)
{
if (strcmp(var.value, "ntsc-u") == 0)
{
sms.display = DISPLAY_NTSC;
sms.territory = TERRITORY_EXPORT;
}
else if (strcmp(var.value, "pal") == 0)
{
sms.display = DISPLAY_PAL;
sms.territory = TERRITORY_EXPORT;
}
else if (strcmp(var.value, "ntsc-j") == 0)
{
sms.display = DISPLAY_NTSC;
sms.territory = TERRITORY_DOMESTIC;
}
}
var.value = NULL;
var.key = "smsplus_ntsc_filter";
@ -395,26 +435,18 @@ static void check_variables(void)
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
if (strcmp(var.value, "monochrome") == 0)
{
use_ntsc = NTSC_MONOCHROME;
}
else if (strcmp(var.value, "composite") == 0)
{
use_ntsc = NTSC_COMPOSITE;
}
else if (strcmp(var.value, "svideo") == 0)
{
use_ntsc = NTSC_SVIDEO;
}
else if (strcmp(var.value, "rgb") == 0)
{
use_ntsc = NTSC_RGB;
}
else
use_ntsc = NTSC_NONE;
}
if (old_ntsc != use_ntsc || old_decode != sony_decoder)
if (old_ntsc != use_ntsc)
{
geometry_changed = 1;
filter_ntsc_set();
@ -465,6 +497,8 @@ bool retro_load_game(const struct retro_game_info *info)
return false;
}
check_variables(true);
sms_bitmap = (uint16_t*)malloc(VIDEO_WIDTH_SMS * 240 * sizeof(uint16_t));
log_cb(RETRO_LOG_INFO, "CRC : 0x%08X\n", cart.crc);
@ -498,8 +532,6 @@ bool retro_load_game(const struct retro_game_info *info)
filter_ntsc_init();
check_variables();
libretro_serialize_size = 0;
geometry_changed = 1;
@ -516,7 +548,7 @@ void retro_run(void)
bool updated = false;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
check_variables();
check_variables(false);
/* Read input */
update_input();