From: Nick Bowler <nbowler@draconx.ca>
Date: Sat, 6 Jan 2024 07:31:15 +0000 (-0500)
Subject: ewmhicon: Fix colourmap generation in w32vga mode.
X-Git-Url: http://git.draconx.ca/gitweb/rrace.git/commitdiff_plain/a3eba64d464d36cb5fac25d3f1f1ff1044b00579

ewmhicon: Fix colourmap generation in w32vga mode.

The bitmap tracking which colours are used is not properly initialized
to zero, so the generated XPM potentially includes a bunch of garbage
in the colourmap section.

No idea why this went unnoticed before as it is completely not working
today.
---

diff --git a/t/ewmhicon.c b/t/ewmhicon.c
index 5919363..ffd1d98 100644
--- a/t/ewmhicon.c
+++ b/t/ewmhicon.c
@@ -1,6 +1,6 @@
 /*
  * Test app for _NET_WM_ICON formatting.
- * Copyright © 2022-2023 Nick Bowler
+ * Copyright © 2022-2024 Nick Bowler
  *
  * Use a fake colour scheme to generate an icon of the chosen size (16x16,
  * 24x24, 32x32 or 48x48) and display the pixels as characters.
@@ -142,7 +142,7 @@ static void print_xpm_w32vga(unsigned long size, unsigned long *icon_buf)
 	};
 
 	unsigned long prev_colour = 0;
-	unsigned used_colours, v;
+	unsigned used_colours = 0, v;
 
 	size = (unsigned long) w * h;
 	for (i = 0; i < size; i++) {