From: Toni Wilen <twilen@winuae.net>
Date: Fri, 17 Aug 2018 20:16:01 +0000 (+0300)
Subject: Skip blit validation if blit call is "fake" memory to VRAM generated.
X-Git-Tag: 4100~121
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=c2287d655acbbef2108c0fc93ab248db75595347;p=francis%2Fwinuae.git

Skip blit validation if blit call is "fake" memory to VRAM generated.
---

diff --git a/qemuvga/cirrus_vga.cpp b/qemuvga/cirrus_vga.cpp
index dcd0e27a..fa12e856 100644
--- a/qemuvga/cirrus_vga.cpp
+++ b/qemuvga/cirrus_vga.cpp
@@ -178,7 +178,7 @@ static void check_blit(int32_t addr, uint32_t mask, int pitch, int width, int *h
 {
 	int h = *height;
 	int32_t off;
-	if (!h || !width)
+	if (!h || !width || (!addr && !mask))
 		return;
 	addr &= mask;
 	off = addr + pitch * (h - 1);