From b6cdba145f6029daea133863a99fa1216c5b7963 Mon Sep 17 00:00:00 2001
From: kichikuou <KichikuouChrome@gmail.com>
Date: Tue, 30 Nov 2021 17:15:50 +0900
Subject: [PATCH] ags: Initialize alpha plane with 255 (opaque)

This fixes an issue in Ouji-sama Lv1 where the background of the map
was not drawn.
---
 src/ags.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/ags.c b/src/ags.c
index 3c5a44e..08fc561 100644
--- a/src/ags.c
+++ b/src/ags.c
@@ -137,8 +137,10 @@ void ags_setWorldSize(int width, int height, int depth) {
 	nact->ags.dib = sdl_getDIB();
 	
 	/* DIBが8以上の場合は、alpha plane を用意 */
-	if (depth > 8)
-		nact->ags.dib->alpha = calloc(width * height, sizeof(BYTE));
+	if (depth > 8) {
+		nact->ags.dib->alpha = malloc(width * height);
+		memset(nact->ags.dib->alpha, 255, width * height);
+	}
 	
 	fade_outed = FALSE;  /* thanx tajiri@wizard */