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

From: maximilian attems <max@stro.at>
To: Takashi Iwai <tiwai@suse.de>
Cc: Clemens Ladisch <clemens@ladisch.de>,
	alsa-devel@alsa-project.org, maximilian attems <max@stro.at>,
	uwe_debbug@arcor.de
Subject: [PATCH] emux midi synthesizer doesn't honor SOFT_PEDAL-release event
Date: Fri,  9 May 2008 10:44:54 +0200	[thread overview]
Message-ID: <1210322694-8868-1-git-send-email-max@stro.at> (raw)

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 KrÃ#ger" <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>
---
 sound/synth/emux/emux_synth.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/sound/synth/emux/emux_synth.c b/sound/synth/emux/emux_synth.c
index 478369b..b343818 100644
--- a/sound/synth/emux/emux_synth.c
+++ b/sound/synth/emux/emux_synth.c
@@ -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;
 
-- 
1.5.5.1

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