shithub: riscv

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camv: fix display locking issues

--- a/sys/src/cmd/camv.c

+++ b/sys/src/cmd/camv.c

@@ -203,8 +203,8 @@

 		r = (Rectangle){subpt(p, q), addpt(p, q)};

 		lockdisplay(display);

 		draw(disp, r, i, nil, i->r.min);

-		flushimage(display, 1);

 		freeimage(i);

+		flushimage(display, 1);

 		unlockdisplay(display);

 	}

 	fprint(2, "readimage: %r\n");

@@ -233,11 +233,17 @@

 	threadcreate(resizethread, nil, mainstacksize);

 	proccreate(videoproc, nil, mainstacksize);

 	display->locking = 1;

+	flushimage(display, 1);

 	unlockdisplay(display);

-	while(readmouse(mc) >= 0){

+	while(recv(mc->c, &mc->Mouse) >= 0){

+		if(mc->buttons == 0)

+			continue;

+		lockdisplay(display);

 		if((mc->buttons & 4) != 0)

 			rmb();

 		else if((mc->buttons & 2) != 0)

 			mmb();

+		flushimage(display, 1);

+		unlockdisplay(display);

 	}

 }