[OMPT-svn-commit] SF.net SVN: modplug:[2400] trunk/OpenMPT/soundlib/Snd_fx.cpp

[<sag...@us...>]

Revision: 2400
          http://sourceforge.net/p/modplug/code/2400
Author:   saga-games
Date:     2013-06-22 22:34:56 +0000 (Sat, 22 Jun 2013)
Log Message:
-----------
[Fix] IT compatibility: Fine volume slides in the volume column are only executed on the first tick, and not on multiples of the first tick in case of a pattern delay.

Modified Paths:
--------------
    trunk/OpenMPT/soundlib/Snd_fx.cpp

Modified: trunk/OpenMPT/soundlib/Snd_fx.cpp
===================================================================
--- trunk/OpenMPT/soundlib/Snd_fx.cpp	2013-06-21 16:47:24 UTC (rev 2399)
+++ trunk/OpenMPT/soundlib/Snd_fx.cpp	2013-06-22 22:34:56 UTC (rev 2400)
@@ -2148,15 +2148,25 @@
 					break;
 
 				case VOLCMD_FINEVOLUP:
-					// IT Compatibility: Volume column volume slides have their own memory
-					// Test case: VolColMemory.it
-					FineVolumeUp(pChn, vol, IsCompatibleMode(TRK_IMPULSETRACKER));
+					// IT Compatibility: Fine volume slides in the volume column are only executed on the first tick, not on multiples of the first tick in case of pattern delay
+					// Test case: FineVolColSlide.it
+					if(m_nTickCount == 0 || !IsCompatibleMode(TRK_IMPULSETRACKER))
+					{
+						// IT Compatibility: Volume column volume slides have their own memory
+						// Test case: VolColMemory.it
+						FineVolumeUp(pChn, vol, IsCompatibleMode(TRK_IMPULSETRACKER));
+					}
 					break;
 
 				case VOLCMD_FINEVOLDOWN:
-					// IT Compatibility: Volume column volume slides have their own memory
-					// Test case: VolColMemory.it
-					FineVolumeDown(pChn, vol, IsCompatibleMode(TRK_IMPULSETRACKER));
+					// IT Compatibility: Fine volume slides in the volume column are only executed on the first tick, not on multiples of the first tick in case of pattern delay
+					// Test case: FineVolColSlide.it
+					if(m_nTickCount == 0 || !IsCompatibleMode(TRK_IMPULSETRACKER))
+					{
+						// IT Compatibility: Volume column volume slides have their own memory
+						// Test case: VolColMemory.it
+						FineVolumeDown(pChn, vol, IsCompatibleMode(TRK_IMPULSETRACKER));
+					}
 					break;
 
 				case VOLCMD_VIBRATOSPEED:

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