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-rw-r--r--src/cmd/devdraw/osx-screen-carbon.m6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/cmd/devdraw/osx-screen-carbon.m b/src/cmd/devdraw/osx-screen-carbon.m
index d4720be7..6f3b4312 100644
--- a/src/cmd/devdraw/osx-screen-carbon.m
+++ b/src/cmd/devdraw/osx-screen-carbon.m
@@ -61,6 +61,7 @@ struct {
int kalting; // last keystroke was Kalt
int touched; // last mouse event was touchCallback
int collapsed; // parked in dock
+ int flushing; // flushproc has started
NSMutableArray* devicelist;
} osx;
@@ -871,7 +872,10 @@ _flushmemscreen(Rectangle r)
qlock(&osx.flushlock);
if(osx.windowctx == nil){
QDBeginCGContext(GetWindowPort(osx.window), &osx.windowctx);
- proccreate(flushproc, nil, 256*1024);
+ if(!osx.flushing) {
+ proccreate(flushproc, nil, 256*1024);
+ osx.flushing = 1;
+ }
}
cgr.origin.x = r.min.x;