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libdraw: don't flush in readmouse() when theres nothing to flush

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This commit is contained in:
cinap_lenrek 2016-03-13 00:03:42 +01:00
parent 2dddca9847
commit 7b8fcd1269
1 changed files with 5 additions and 2 deletions
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7
sys/src/libdraw/mouse.c
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@ -26,8 +26,11 @@ closemouse(Mousectl *mc)
int int
readmouse(Mousectl *mc) readmouse(Mousectl *mc)
{ {
if(mc->image) if(mc->image){
flushimage(mc->image->display, 1); Display *d = mc->image->display;
if(d->bufp > d->buf)
flushimage(d, 1);
}
if(recv(mc->c, &mc->Mouse) < 0){ if(recv(mc->c, &mc->Mouse) < 0){
fprint(2, "readmouse: %r\n"); fprint(2, "readmouse: %r\n");
return -1; return -1;