61     float lfol, lfor, lgain, rgain, tmp;  in out()  local
65     rgain = lfor;  in out()
68     rgain =  in out()
69         (expf (rgain * PHASER_LFO_SHAPE) - 1.0f) / (expf (PHASER_LFO_SHAPE) - 1.0f);  in out()
73     rgain = 1.0f - phase * (1.0f - depth) - (1.0f - phase) * rgain * depth;  in out()
79     if (rgain > 1.0)  in out()
80         rgain = 1.0f;  in out()
81     else if (rgain < 0.0)  in out()
82         rgain = 0.0f;  in out()
88         float gr = rgain * x + oldrgain * x1;  in out()
120     oldrgain = rgain;  in out()