[OMPT-svn-commit] OpenMPT r22054 - trunk/OpenMPT/soundlib

[<sv...@op...>]

Author: sagamusix
Date: Fri Nov  1 21:51:14 2024
New Revision: 22054
URL: https://source.openmpt.org/browse/openmpt/?op=revision&rev=22054

Log:
[Mod] Use deterministic PRNG for random sample creation in Startrekker files. This way we can have consistent playback tests.

Modified:
   trunk/OpenMPT/soundlib/Load_mod.cpp

Modified: trunk/OpenMPT/soundlib/Load_mod.cpp
==============================================================================
--- trunk/OpenMPT/soundlib/Load_mod.cpp	Fri Nov  1 21:41:13 2024	(r22053)
+++ trunk/OpenMPT/soundlib/Load_mod.cpp	Fri Nov  1 21:51:14 2024	(r22054)
@@ -745,6 +745,8 @@
 		m_nInstruments = 31;
 #endif
 
+		mpt::deterministic_random_device rd;
+		auto prng = mpt::make_prng<mpt::deterministic_fast_engine>(rd);
 		for(SAMPLEINDEX smp = 1; smp <= m_nInstruments; smp++)
 		{
 			// For Startrekker AM synthesis, we need instrument envelopes.
@@ -759,7 +761,7 @@
 			// Allow partial reads for fa.worse face.mod
 			if(amData.ReadStructPartial(am) && !memcmp(am.am, "AM", 2) && am.waveform < 4)
 			{
-				am.ConvertToMPT(Samples[smp], *ins, AccessPRNG());
+				am.ConvertToMPT(Samples[smp], *ins, prng);
 			}
 
 			// This extra padding is probably present to have identical block sizes for AM and FM instruments.