#ifndef __ardour_gtk_log_meter_h__
#define __ardour_gtk_log_meter_h__
+#include "ardour/dB.h"
+
#if 1
static inline float
_log_meter (float power, double lower_db, double upper_db, double non_linearity)
#endif
/* prototypes - avoid compiler warning */
-inline float log_meter (float db);
-inline float meter_deflect_ppm (float);
-inline float meter_deflect_din (float);
-inline float meter_deflect_nordic (float);
-inline float meter_deflect_vu (float);
-inline float meter_deflect_k (float, float);
+static inline float log_meter (float db);
+static inline float meter_deflect_ppm (float);
+static inline float meter_deflect_din (float);
+static inline float meter_deflect_nordic (float);
+static inline float meter_deflect_vu (float);
+static inline float meter_deflect_k (float, float);
-inline float
+static inline float
log_meter (float db)
{
gfloat def = 0.0f; /* Meter deflection %age */
return def/115.0f;
}
-inline float
+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) {
}
}
-inline float
+static inline float
meter_deflect_din (float db)
{
float rv = dB_to_coefficient(db);
}
}
-inline float
+static inline float
meter_deflect_nordic (float db)
{
if (db < -60) {
}
}
-inline float
+static inline float
meter_deflect_vu (float db)
{
const float rv = 6.77165f * dB_to_coefficient(db);
return rv;
}
-inline float
+static inline float
meter_deflect_k (float db, float krange)
{
db+=krange;