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Add more runtime options - blargg NTSC filter options - monochrome/composite/svideo/rgb -

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gg_extra / overscan
This commit is contained in:
twinaphex 2013-04-08 00:58:24 +02:00
parent fad92cea92
commit d8af16f193
1 changed files with 72 additions and 5 deletions
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77
libretro/libretro.c
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@ -41,7 +41,9 @@ void retro_set_environment(retro_environment_t cb)
environ_cb = cb;
static const struct retro_variable vars[] = {
{ "blargg_ntsc_filter", "Blargg NTSC filter; disabled|enabled" },
{ "blargg_ntsc_filter", "Blargg NTSC filter; disabled|monochrome|composite|svideo|rgb" },
{ "overscan", "Overscan mode; 0|1|2|3" },
{ "gg_extra", "Game Gear extended screen; disabled|enabled" },
{ NULL, NULL },
};
@ -847,18 +849,85 @@ static bool LoadFile(char * filename)
static void check_variables(void)
{
bool update_viewports = false;
static bool last_ntsc_val_same;
struct retro_variable var = {0};
var.key = "blargg_ntsc_filter";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
unsigned orig_value = config.ntsc;
update_viewports = true;
if (strcmp(var.value, "disabled") == 0)
config.ntsc = 0;
else if (strcmp(var.value, "enabled") == 0)
else if (strcmp(var.value, "monochrome") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_monochrome);
md_ntsc_init(md_ntsc, &md_ntsc_monochrome);
}
else if (strcmp(var.value, "composite") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_composite);
md_ntsc_init(md_ntsc, &md_ntsc_composite);
}
else if (strcmp(var.value, "svideo") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_svideo);
md_ntsc_init(md_ntsc, &md_ntsc_svideo);
}
else if (strcmp(var.value, "rgb") == 0)
{
config.ntsc = 1;
sms_ntsc_init(sms_ntsc, &sms_ntsc_rgb);
md_ntsc_init(md_ntsc, &md_ntsc_rgb);
}
retro_set_viewport_dimensions();
if (orig_value != config.ntsc)
update_viewports = true;
}
var.key = "overscan";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
unsigned orig_value = config.overscan;
if (strcmp(var.value, "0") == 0)
config.overscan = 0;
else if (strcmp(var.value, "1") == 0)
config.overscan = 1;
else if (strcmp(var.value, "2") == 0)
config.overscan = 2;
else if (strcmp(var.value, "3") == 0)
config.overscan = 3;
if (orig_value != config.overscan)
update_viewports = true;
}
var.key = "gg_extra";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var))
{
unsigned orig_value = config.gg_extra;
if (strcmp(var.value, "disabled") == 0)
config.gg_extra = 0;
else if (strcmp(var.value, "enabled") == 0)
config.gg_extra = 1;
if (orig_value != config.gg_extra)
update_viewports = true;
}
if (update_viewports)
retro_set_viewport_dimensions();
}
bool retro_load_game(const struct retro_game_info *info)
@ -990,8 +1059,6 @@ void retro_init(void)
unsigned level, rgb565;
sms_ntsc = calloc(1, sizeof(sms_ntsc_t));
md_ntsc = calloc(1, sizeof(md_ntsc_t));
sms_ntsc_init(sms_ntsc, &sms_ntsc_composite);
md_ntsc_init(md_ntsc, &md_ntsc_composite);
level = 1;
environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);