r3576 - trunk/payloads/libpayload/drivers/video

Author: oxygene
Date: 2008-09-11 19:44:45 +0200 (Thu, 11 Sep 2008)
New Revision: 3576

Modified:
   trunk/payloads/libpayload/drivers/video/video.c
Log:
makes cursorx and cursory signed, as there
are several "if (cursorx < 0)" tests.

I also added another one, to make backspace
wrap backwards into the previous line, if necessary.

Signed-off-by: Patrick Georgi 
Acked-by: Jordan Crouse

Modified: trunk/payloads/libpayload/drivers/video/video.c
===================================================================
--- trunk/payloads/libpayload/drivers/video/video.c	2008-09-11 17:29:00 UTC (rev 3575)
+++ trunk/payloads/libpayload/drivers/video/video.c	2008-09-11 17:44:45 UTC (rev 3576)
@@ -51,8 +51,8 @@

static struct video_console *console;

-static unsigned int cursorx;
-static unsigned int cursory;
+static int cursorx;
+static int cursory;
 static unsigned int cursor_enabled = 1;

static void video_console_fixup_cursor(void)
@@ -122,6 +122,10 @@

case '\b':
    	cursorx--;
+		if (cursorx < 0) {
+			cursory--;
+			cursorx = VIDEO_COLS;
+		}
    	break;

case '\t':
@@ -172,7 +176,7 @@
    		console = console_list[i];

if (console->get_cursor)
-				console->get_cursor(&cursorx, &cursory, &cursor_enabled);
+				console->get_cursor((unsigned int*)&cursorx, (unsigned int*)&cursory, &cursor_enabled);

if (cursorx) {
    			cursorx = 0;