diff options
Diffstat (limited to 'gtk2_ardour/logmeter.h')
| -rw-r--r-- | gtk2_ardour/logmeter.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gtk2_ardour/logmeter.h b/gtk2_ardour/logmeter.h index a244fb4bbe..ff0520a63b 100644 --- a/gtk2_ardour/logmeter.h +++ b/gtk2_ardour/logmeter.h @@ -76,6 +76,31 @@ log_meter (float db) } static inline float +log_meter0dB (float db) +{ + gfloat def = 0.0f; /* Meter deflection %age */ + + if (db < -70.0f) { + def = 0.0f; + } else if (db < -60.0f) { + def = (db + 70.0f) * 0.25f; + } else if (db < -50.0f) { + def = (db + 60.0f) * 0.5f + 2.5f; + } else if (db < -40.0f) { + def = (db + 50.0f) * 0.75f + 7.5f; + } else if (db < -30.0f) { + def = (db + 40.0f) * 1.5f + 15.0f; + } else if (db < -20.0f) { + def = (db + 30.0f) * 2.0f + 30.0f; + } else if (db < 0.0f) { + def = (db + 20.0f) * 2.5f + 50.0f; + } else { + def = 100.0f; + } + return def/100.0f; +} + +static inline float meter_deflect_ppm (float db) { if (db < -30) { |