commit 60a47420a8887d7fcda37efe4b6baf730d9cc936
from: Russ Cox <rsc@swtch.com>
date: Sun Oct 07 13:48:47 2012 UTC

devdraw: prefer 24-bit over 15-bit or 16-bit.

Fixes remote X11 use via XQuartz 2.7.4.

R=rsc
http://codereview.appspot.com/6624058

commit - 5b6028903dc9a0d1561a54764a520aaa1b1100e4
commit + 60a47420a8887d7fcda37efe4b6baf730d9cc936
blob - 0fd27d724a64638dbd1aa695f4e065e024e55461
blob + 04b13a038fa377d0baf0e3565c58b2b1eb08dcf0
--- src/cmd/devdraw/x11-init.c
+++ src/cmd/devdraw/x11-init.c
@@ -98,6 +98,12 @@ _xattach(char *label, char *winsize)
 	/* 
 	 * Figure out underlying screen format.
 	 */
+	if(XMatchVisualInfo(_x.display, xrootid, 24, TrueColor, &xvi)
+	|| XMatchVisualInfo(_x.display, xrootid, 24, DirectColor, &xvi)){
+		_x.vis = xvi.visual;
+		_x.depth = 24;
+	}
+	else
 	if(XMatchVisualInfo(_x.display, xrootid, 16, TrueColor, &xvi)
 	|| XMatchVisualInfo(_x.display, xrootid, 16, DirectColor, &xvi)){
 		_x.vis = xvi.visual;
@@ -108,12 +114,6 @@ _xattach(char *label, char *winsize)
 	|| XMatchVisualInfo(_x.display, xrootid, 15, DirectColor, &xvi)){
 		_x.vis = xvi.visual;
 		_x.depth = 15;
-	}
-	else
-	if(XMatchVisualInfo(_x.display, xrootid, 24, TrueColor, &xvi)
-	|| XMatchVisualInfo(_x.display, xrootid, 24, DirectColor, &xvi)){
-		_x.vis = xvi.visual;
-		_x.depth = 24;
 	}
 	else
 	if(XMatchVisualInfo(_x.display, xrootid, 8, PseudoColor, &xvi)