/* Returns 1 if envelope runs out */
int recompute_envelope(int v)
{
int stage;
stage = voice[v].envelope_stage;
if (stage>5)
{
/* Envelope ran out. */
int tmp=(voice[v].status == VOICE_DIE); /* Already displayed as dead */
voice[v].status = VOICE_FREE;
if(!tmp)
ctl->note(v);
return 1;
}
if (voice[v].sample->modes & MODES_ENVELOPE)
{
if (voice[v].status==VOICE_ON || voice[v].status==VOICE_SUSTAINED)
{
if (stage>2)
{
/* Freeze envelope until note turns off. Trumpets want this. */
voice[v].envelope_increment=0;
return 0;
}
}
}
voice[v].envelope_stage=stage+1;
if (voice[v].envelope_volume==voice[v].sample->envelope_offset[stage])
return recompute_envelope(v);
voice[v].envelope_target=voice[v].sample->envelope_offset[stage];
voice[v].envelope_increment = voice[v].sample->envelope_rate[stage];
if (voice[v].envelope_target<voice[v].envelope_volume)
voice[v].envelope_increment = -voice[v].envelope_increment;
return 0;
}
/* Returns 1 if envelope runs out */
int recompute_envelope(PMIDI_DECODEC hMidi,int v)
{
int stage;
stage = hMidi->voice[v].envelope_stage;
if (stage>5)
{
/* Envelope ran out. */
int tmp;
tmp = (hMidi->voice[v].status == VOICE_DIE); /* Already displayed as dead */
hMidi->voice[v].status = VOICE_FREE;
return 1;
}
if (hMidi->voice[v].sample->modes & MODES_ENVELOPE)
{
if (hMidi->voice[v].status==VOICE_ON || hMidi->voice[v].status==VOICE_SUSTAINED)
{
if (stage>2)
{
/* Freeze envelope until note turns off. Trumpets want this. */
hMidi->voice[v].envelope_increment=0;
return 0;
}
}
}
hMidi->voice[v].envelope_stage=stage+1;
if (hMidi->voice[v].envelope_volume==hMidi->voice[v].sample->envelope_offset[stage])
return recompute_envelope(hMidi,v);
hMidi->voice[v].envelope_target=hMidi->voice[v].sample->envelope_offset[stage];
hMidi->voice[v].envelope_increment = hMidi->voice[v].sample->envelope_rate[stage];
if (hMidi->voice[v].envelope_target<hMidi->voice[v].envelope_volume)
hMidi->voice[v].envelope_increment = -hMidi->voice[v].envelope_increment;
return 0;
}
