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Add Core Option "Sound Quality"

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This commit is contained in:
retro-wertz
2017-09-09 14:54:02 +08:00
parent 8dda68b22e
commit 67fe19858a
1 changed files with 23 additions and 4 deletions
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27
src/drivers/libretro/libretro.c
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@@ -76,6 +76,9 @@ static uint16_t* fceu_video_out;
/* Some timing-related variables. */
static int soundo = 1;
unsigned sndsamplerate = 48000;
unsigned sndquality = 0;
unsigned sndvolume = 150;
static volatile int nofocus = 0;
@@ -179,7 +182,7 @@ void FCEUD_NetworkClose(void)
void FCEUD_SoundToggle (void)
{
FCEUI_SetSoundVolume(100);
FCEUI_SetSoundVolume(sndvolume);
}
void FCEUD_VideoChanged (void)
@@ -548,6 +551,7 @@ void retro_set_environment(retro_environment_t cb)
{ "fceumm_turbo_delay", "Turbo Delay (in frames); 3|5|10|15|30|60|1|2" },
{ "fceumm_aspect", "Preferred aspect ratio; 8:7 PAR|4:3" },
{ "fceumm_region", "Region Override; Auto|NTSC|PAL|Dendy" },
{ "fceumm_sndquality", "Sound Quality; Low|High|Very High" },
{ NULL, NULL },
};
@@ -582,7 +586,7 @@ void retro_get_system_av_info(struct retro_system_av_info *info)
info->geometry.max_width = width;
info->geometry.max_height = height;
info->geometry.aspect_ratio = use_par ? NES_8_7_PAR : NES_4_3;
info->timing.sample_rate = 48000.0;
info->timing.sample_rate = (float)sndsamplerate;
if (FSettings.PAL || dendy)
info->timing.fps = 838977920.0/16777215.0;
else
@@ -959,6 +963,21 @@ static void check_variables(bool startup)
}
}
var.key = "fceumm_sndquality";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
unsigned oldval = sndquality;
if (!strcmp(var.value, "Low"))
sndquality = 0;
else if (!strcmp(var.value, "High"))
sndquality = 1;
else if (!strcmp(var.value, "Very High"))
sndquality = 2;
if (sndquality != oldval)
FCEUI_SetSoundQuality(sndquality);
}
if (geometry_update)
{
retro_get_system_av_info(&av_info);
@@ -1594,8 +1613,8 @@ bool retro_load_game(const struct retro_game_info *game)
FCEUI_Initialize();
FCEUI_SetSoundVolume(256);
FCEUI_Sound(48000);
FCEUI_SetSoundVolume(sndvolume);
FCEUI_Sound(sndsamplerate);
GameInfo = (FCEUGI*)FCEUI_LoadGame(game->path, (uint8_t*)game->data, game->size);
if (!GameInfo)