Small ASIO update to support buffersize value of 0 (setting to preferred size).

diff --git a/RtAudio.cpp b/RtAudio.cpp
index 31bef7171f2ff3668271beefaca2c6555ec29ee9..4d4c85f2ef03037db4270ad7dc645306dcae6864 100644 (file)
--- a/RtAudio.cpp
+++ b/RtAudio.cpp
@@ -3012,7 +3012,8 @@ bool RtApiAsio :: probeDeviceOpen( unsigned int device, StreamMode mode, unsigne
     *bufferSize = stream_.bufferSize;\r
 \r
   } else {\r
-    if ( *bufferSize < (unsigned int) minSize ) *bufferSize = (unsigned int) minSize;\r
+    if ( *bufferSize == 0 ) *bufferSize = preferSize;\r
+    else if ( *bufferSize < (unsigned int) minSize ) *bufferSize = (unsigned int) minSize;\r
     else if ( *bufferSize > (unsigned int) maxSize ) *bufferSize = (unsigned int) maxSize;\r
     else if ( granularity == -1 ) {\r
       // Make sure bufferSize is a power of two.\r