From fa921ad6d629937bb348a6296bee68ed5e9cee0e Mon Sep 17 00:00:00 2001
From: Robert Göffringmann
Date: Fri, 11 Jul 2003 22:59:56 +0000
Subject: fixed screen blit during fnDrawScreen

svn-id: r8916
---
 sky/screen.cpp | 7 ++++---
 sky/screen.h   | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/sky/screen.cpp b/sky/screen.cpp
index 414d151ede..32bc7ed113 100644
--- a/sky/screen.cpp
+++ b/sky/screen.cpp
@@ -194,7 +194,7 @@ void SkyScreen::recreate(void) {
 	}
 }
 
-void SkyScreen::flip(void) {
+void SkyScreen::flip(bool doUpdate) {
 
 	SkyState::_systemVars.mouseFlag |= MF_NO_UPDATE;
 	uint8 *screenPos = _currentScreen;
@@ -229,7 +229,8 @@ void SkyScreen::flip(void) {
 		backPos += (GRID_H - 1) * GAME_SCREEN_WIDTH;
 	}
 	SkyState::_systemVars.mouseFlag &= ~MF_NO_UPDATE;
-	_system->update_screen();
+	if (doUpdate)
+		_system->update_screen();
 }
 
 void SkyScreen::fnDrawScreen(uint32 palette, uint32 scroll) {
@@ -239,7 +240,7 @@ void SkyScreen::fnDrawScreen(uint32 palette, uint32 scroll) {
 	forceRefresh();
 	recreate();
 	spriteEngine();
-	flip();
+	flip(false);
 	fnFadeUp(palette, scroll);
 }
 
diff --git a/sky/screen.h b/sky/screen.h
index a1116b2afd..59ab046266 100644
--- a/sky/screen.h
+++ b/sky/screen.h
@@ -78,7 +78,7 @@ public:
 	void clearScreen(void);
 
 	void recreate(void);
-	void flip(void);
+	void flip(bool doUpdate = true);
 
 	void spriteEngine(void);
 
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