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authorVitaly Novichkov <admin@wohlnet.ru>2019-09-23 02:14:21 +0300
committerVitaly Novichkov <admin@wohlnet.ru>2019-09-23 02:14:21 +0300
commit62a018a1338b807d325d44a512499cf31563ab26 (patch)
tree1d123547ccc047e2cdc3d078a46ad372f47ff6d7 /src/chips/dosbox/dbopl.cpp
parent795195d9fe76654ff028578a9a95876b1b92dcc1 (diff)
parent241cf3838dcb4a383302cdaa99f13347c7f52f77 (diff)
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Merge branch 'master' of github.com:Wohlstand/libADLMIDI
Diffstat (limited to 'src/chips/dosbox/dbopl.cpp')
-rw-r--r--src/chips/dosbox/dbopl.cpp9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/chips/dosbox/dbopl.cpp b/src/chips/dosbox/dbopl.cpp
index d1ab82f..5b4bf53 100644
--- a/src/chips/dosbox/dbopl.cpp
+++ b/src/chips/dosbox/dbopl.cpp
@@ -1507,11 +1507,15 @@ void Chip::Setup( Bit32u rate ) {
}
}
-static bool doneTables = false;
+static volatile bool doneTables = false;
+static Mutex mutexTables;
+
void InitTables( void ) {
if ( doneTables )
return;
- doneTables = true;
+ MutexHolder lock( mutexTables );
+ if ( doneTables )
+ return;
#if ( DBOPL_WAVE == WAVE_HANDLER ) || ( DBOPL_WAVE == WAVE_TABLELOG )
//Exponential volume table, same as the real adlib
for ( int i = 0; i < 256; i++ ) {
@@ -1661,6 +1665,7 @@ void InitTables( void ) {
}
}
#endif
+ doneTables = true;
}
Bit32u Handler::WriteAddr( Bit32u port, Bit8u val ) {