diff options
Diffstat (limited to 'libs/ardour/utils.cc')
-rw-r--r-- | libs/ardour/utils.cc | 54 |
1 files changed, 47 insertions, 7 deletions
diff --git a/libs/ardour/utils.cc b/libs/ardour/utils.cc index ec5cb4e757..a02016201a 100644 --- a/libs/ardour/utils.cc +++ b/libs/ardour/utils.cc @@ -394,25 +394,65 @@ slave_source_to_string (SlaveSource src) } } +/* I don't really like hard-coding these falloff rates here + * Probably should use a map of some kind that could be configured + * These rates are db/sec. +*/ + +#define METER_FALLOFF_OFF 0.0f +#define METER_FALLOFF_SLOWEST 6.6f // BBC standard +#define METER_FALLOFF_SLOW 8.6f // BBC standard +#define METER_FALLOFF_MEDIUM 20.0f +#define METER_FALLOFF_FAST 32.0f +#define METER_FALLOFF_FASTER 46.0f +#define METER_FALLOFF_FASTEST 70.0f + float meter_falloff_to_float (MeterFalloff falloff) { switch (falloff) { case MeterFalloffOff: - return 0.0f; + return METER_FALLOFF_OFF; case MeterFalloffSlowest: - return 1.0f; + return METER_FALLOFF_SLOWEST; case MeterFalloffSlow: - return 2.0f; + return METER_FALLOFF_SLOW; case MeterFalloffMedium: - return 3.0f; + return METER_FALLOFF_MEDIUM; case MeterFalloffFast: - return 4.0f; + return METER_FALLOFF_FAST; case MeterFalloffFaster: - return 5.0f; + return METER_FALLOFF_FASTER; case MeterFalloffFastest: + return METER_FALLOFF_FASTEST; default: - return 6.0f; + return METER_FALLOFF_FAST; + } +} + +MeterFalloff +meter_falloff_from_float (float val) +{ + if (val == METER_FALLOFF_OFF) { + return MeterFalloffOff; + } + else if (val <= METER_FALLOFF_SLOWEST) { + return MeterFalloffSlowest; + } + else if (val <= METER_FALLOFF_SLOW) { + return MeterFalloffSlow; + } + else if (val <= METER_FALLOFF_MEDIUM) { + return MeterFalloffMedium; + } + else if (val <= METER_FALLOFF_FAST) { + return MeterFalloffFast; + } + else if (val <= METER_FALLOFF_FASTER) { + return MeterFalloffFaster; + } + else { + return MeterFalloffFastest; } } |