fix #22799: crash on startup on mac osx

musescore · Sep 24, 2013 · 429b740 · 429b740
1 parent df3b4a2
commit 429b740
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/synthesizer/msynthesizer.cpp b/synthesizer/msynthesizer.cpp
@@ -273,6 +273,9 @@ void MasterSynthesizer::process(unsigned n, float* p)
             lock1 = false;
             return;
             }
+      // avoid overflow
+      if( n > MAX_BUFFERSIZE / 2)
+            return;
       for (Synthesizer* s : _synthesizer) {
             if (s->active())
                   s->process(n, p, effect1Buffer, effect2Buffer);

diff --git a/synthesizer/msynthesizer.h b/synthesizer/msynthesizer.h
@@ -37,7 +37,7 @@ class MasterSynthesizer : public QObject {
       double _masterTuning;
 
    public:
-      static const int MAX_BUFFERSIZE = 4096;
+      static const int MAX_BUFFERSIZE = 8192;
       static const int MAX_EFFECTS = 2;
 
    private: