diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmd/devdraw/osx-srv.c | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/src/cmd/devdraw/osx-srv.c b/src/cmd/devdraw/osx-srv.c index 32450cd8..9329bc2f 100644 --- a/src/cmd/devdraw/osx-srv.c +++ b/src/cmd/devdraw/osx-srv.c @@ -45,6 +45,7 @@ struct Kbdbuf struct Mousebuf { Mouse m[32]; + Mouse last; int ri; int wi; int stall; @@ -201,7 +202,6 @@ runmsg(Wsysmsg *m) mousetags.wi = 0; if(mousetags.wi == mousetags.ri) sysfatal("too many queued mouse reads"); - /* fprint(2, "mouse unstall\n"); */ mouse.stall = 0; matchmouse(); zunlock(); @@ -379,21 +379,28 @@ mousetrack(int x, int y, int b, int ms) y = mouserect.max.y; zlock(); - m = &mouse.m[mouse.wi]; - m->xy.x = x; - m->xy.y = y; - m->buttons = b; - m->msec = ms; - mouse.wi++; - if(mouse.wi == nelem(mouse.m)) - mouse.wi = 0; - if(mouse.wi == mouse.ri){ - mouse.stall = 1; - mouse.ri = 0; - mouse.wi = 1; - mouse.m[0] = *m; + // If reader has stopped reading, don't bother. + // If reader is completely caught up, definitely queue. + // Otherwise, queue only button change events. + if(!mouse.stall) + if(mouse.wi == mouse.ri || mouse.last.buttons != b){ + m = &mouse.last; + m->xy.x = x; + m->xy.y = y; + m->buttons = b; + m->msec = ms; + + mouse.m[mouse.wi] = *m; + if(++mouse.wi == nelem(mouse.m)) + mouse.wi = 0; + if(mouse.wi == mouse.ri){ + mouse.stall = 1; + mouse.ri = 0; + mouse.wi = 1; + mouse.m[0] = *m; + } + matchmouse(); } - matchmouse(); zunlock(); } |