mangavalk/lcdproc
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Patched lcd.c to work with older drivers that use 0 or (void *) -1

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as valid function pointer values (now logs to syslog); fixed text
driver, curses driver, and CFontz driver to work correctly in new
environment.
This commit is contained in:
ddouthitt
2001-09-25 00:13:57 +00:00
parent 1be66aa0b9
commit 4b24b2e6f1
5 changed files with 124 additions and 26 deletions
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server/drivers/CFontz.c
+35 -2
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@@ -187,8 +187,10 @@ CFontz_init (lcd_logical_driver * driver, char *args)
}
// Set the functions the driver supports...
driver->clear = (void *) -1;
driver->string = (void *) -1;
//driver->clear = (void *) -1;
driver->clear = CFontz_clear;
//driver->string = (void *) -1;
driver->string = CFontz_string;
// driver->chr = CFontz_chr;
driver->chr = CFontz_chr;
driver->vbar = CFontz_vbar;
@@ -694,3 +696,34 @@ CFontz_draw_frame (char *dat)
*/
}
/////////////////////////////////////////////////////////////////
// Clears the LCD screen
//
void
CFontz_clear ()
{
memset (lcd.framebuf, ' ', lcd.wid * lcd.hgt);
}
/////////////////////////////////////////////////////////////////
// Prints a string on the lcd display, at position (x,y). The
// upper-left is (1,1), and the lower right should be (20,4).
//
void
CFontz_string (int x, int y, char string[])
{
int i;
x -= 1; // Convert 1-based coords to 0-based...
y -= 1;
for (i = 0; string[i]; i++) {
// Check for buffer overflows...
if ((y * lcd.wid) + x + i > (lcd.wid * lcd.hgt))
break;
lcd.framebuf[(y * lcd.wid) + x + i] = string[i];
}
}