From 3ae850fe9c14d2feffbbad0b31df0c9f4ae0cb96 Mon Sep 17 00:00:00 2001
From: Norbert Lange
Date: Fri, 10 Jul 2009 15:04:41 +0000
Subject: added initialisation of channels

svn-id: r42339
---
 sound/mods/maxtrax.cpp | 22 +++++++++++++++++++++-
 sound/mods/maxtrax.h   |  1 +
 2 files changed, 22 insertions(+), 1 deletion(-)

(limited to 'sound')

diff --git a/sound/mods/maxtrax.cpp b/sound/mods/maxtrax.cpp
index 4573ab3e3d..b922fb0dc3 100644
--- a/sound/mods/maxtrax.cpp
+++ b/sound/mods/maxtrax.cpp
@@ -48,6 +48,9 @@ MaxTrax::MaxTrax(int rate, bool stereo)
 
 	uint32 colorClock = kPalSystemClock / 2;
 
+	for (int i = 0; i < kNumChannels; ++i)
+		resetChannel(_channelCtx[i], (i & 1) != 0);
+
 	// init extraChannel
 	// extraChannel. chan_Number = 16, chan_Flags = chan_VoicesActive = 0
 }
@@ -263,7 +266,7 @@ void MaxTrax::interrupt() {
 			if (voice.channel->volume < (1 << 7))
 				vol = (vol * voice.channel->volume) >> 7;
 
-			newVolume = (byte)MAX(vol, (uint16)0x64);
+			newVolume = (byte)MIN(vol, (uint16)0x64);
 			voice.lastVolume = newVolume;
 
 			if ((voice.flags & VoiceContext::kFlagPortamento) != 0) {
@@ -499,6 +502,23 @@ void MaxTrax::noteOff(ChannelContext &channel, const byte note) {
 	}
 }
 
+void MaxTrax::resetChannel(ChannelContext &chan, bool rightChannel) {
+	chan.modulation = 0;
+	chan.modulationTime = 1000;
+	chan.microtonal = -1;
+	chan.portamento = 500;
+	chan.pitchBend = 64 << 7;
+	chan.pitchReal = 0;
+	chan.pitchBendRange = 24;
+	chan.volume = 128;
+	chan.flags &= ~ChannelContext::kFlagPortamento & ~ChannelContext::kFlagMicrotonal;
+	chan.flags |= ChannelContext::kFlagAltered;
+	if (rightChannel)
+		chan.flags |= ChannelContext::kFlagRightChannel;
+	else
+		chan.flags &= ~ChannelContext::kFlagRightChannel;
+}
+
 void MaxTrax::freeScores() {
 	if (_scores) {
 		for (int i = 0; i < _numScores; ++i)
diff --git a/sound/mods/maxtrax.h b/sound/mods/maxtrax.h
index 0e266dfc90..1edfa5945b 100644
--- a/sound/mods/maxtrax.h
+++ b/sound/mods/maxtrax.h
@@ -202,6 +202,7 @@ public:
 	void stopMusic();
 	void freePatches();
 	void freeScores();
+	void resetChannel(ChannelContext &chan, bool rightChannel);
 
 	int calcNote(VoiceContext &voice);
 	int8 noteOn(ChannelContext &channel, byte note, uint16 volume, uint16 pri);
-- 
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