[ALSA] emux midi synthesizer doesn't honor SOFT_PEDAL-release event

When the hardware wavetable synthesizer of an Creative SB Audigy or SB
Live! card (with emu10k chip) receives the MIDI SOFT_PEADAL-press event
(?? 67 127) the appropriate voice is attenuted. Unfortunately when the
pedal is released (event ?? 67 0) the voice does not get it's original
volume again.

Boolean MIDI controls should interpret 0..63 as false and 64..127 as true.
Thanks to Clemens Ladisch for review and correction.

Original patch from "Uwe Kraeger" <uwe_debbug@arcor.de>
Submitted to http://bugs.debian.org/474312

Signed-off-by: maximilian attems <max@stro.at>
Cc: uwe_debbug@arcor.de
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
maximilian attems 2008-05-09 13:43:09 +02:00 committed by Takashi Iwai
parent c714a534d8
commit bf91141d35

View File

@ -341,8 +341,12 @@ snd_emux_control(void *p, int type, struct snd_midi_channel *chan)
case MIDI_CTL_SOFT_PEDAL:
#ifdef SNDRV_EMUX_USE_RAW_EFFECT
/* FIXME: this is an emulation */
snd_emux_send_effect(port, chan, EMUX_FX_CUTOFF, -160,
if (chan->control[type] >= 64)
snd_emux_send_effect(port, chan, EMUX_FX_CUTOFF, -160,
EMUX_FX_FLAG_ADD);
else
snd_emux_send_effect(port, chan, EMUX_FX_CUTOFF, 0,
EMUX_FX_FLAG_OFF);
#endif
break;