From 85ccf22f3d2340e80ce2a109bbe610da1b92ca7d Mon Sep 17 00:00:00 2001 From: Chris Xiong Date: Sun, 1 May 2016 23:49:05 +0800 Subject: Give the visualization a clearer look... Now highlights playing notes. Avoid a crash in file reading. --- core/qmpmidiread.cpp | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'core/qmpmidiread.cpp') diff --git a/core/qmpmidiread.cpp b/core/qmpmidiread.cpp index 380b603..9b1d932 100644 --- a/core/qmpmidiread.cpp +++ b/core/qmpmidiread.cpp @@ -172,10 +172,13 @@ int CMidiFile::eventReader()//returns 0 if End of Track encountered error(0,"W: Unknown event type %#x",type); } lasttype=type;++curid; - SEvent* le=eventList[eventList.size()-1]; - SEventCallBackData cbd(le->type,le->p1,le->p2,le->time); - for(int i=0;i<16;++i)if(eventReaderCB[i]) - eventReaderCB[i]->callBack(&cbd,eventReaderCBuserdata[i]); + if(eventList.size()) + { + SEvent* le=eventList[eventList.size()-1]; + SEventCallBackData cbd(le->type,le->p1,le->p2,le->time); + for(int i=0;i<16;++i)if(eventReaderCB[i]) + eventReaderCB[i]->callBack(&cbd,eventReaderCBuserdata[i]); + } return 1; } void CMidiFile::trackChunkReader() -- cgit v1.2.3