From 426f18764212a03bdf1a2261e5e8720bd50c0b36 Mon Sep 17 00:00:00 2001
From: NeoBrainX <NeoBrainX@googlemail.com>
Date: Sun, 3 Apr 2011 18:08:04 +0000
Subject: [PATCH] VideoCommon: Update color writing mask if pixel format
 changes. Possibly fixes issue 4340.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7436 8ced0084-cf51-0410-be5f-012b33b47a6e
---
 Source/Core/VideoCommon/Src/BPStructs.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Source/Core/VideoCommon/Src/BPStructs.cpp b/Source/Core/VideoCommon/Src/BPStructs.cpp
index b83104b522..bd9e9ac5f7 100644
--- a/Source/Core/VideoCommon/Src/BPStructs.cpp
+++ b/Source/Core/VideoCommon/Src/BPStructs.cpp
@@ -429,6 +429,7 @@ void BPWritten(const BPCmd& bp)
 		break;
 
 	case BPMEM_ZCOMPARE:      // Set the Z-Compare and EFB pixel format
+		g_renderer->SetColorMask(); // alpha writing needs to be disabled if the new pixel format doesn't have an alpha channel
 		OnPixelFormatChange(bp);
 		break;