From 58884b1244e2ff88aeeec4d5f281c56ec9ba3139 Mon Sep 17 00:00:00 2001
From: Sylvain Dupont
Date: Sat, 5 Feb 2011 12:11:57 +0000
Subject: TOON: Add some sleep if the game refreshes too fast

Prevents the game from using 100% CPU? 

svn-id: r55786
---
 engines/toon/toon.cpp | 10 ++++++++++
 engines/toon/toon.h   |  1 +
 2 files changed, 11 insertions(+)

(limited to 'engines')

diff --git a/engines/toon/toon.cpp b/engines/toon/toon.cpp
index eb4120123d..a9b0d7aa5e 100644
--- a/engines/toon/toon.cpp
+++ b/engines/toon/toon.cpp
@@ -160,6 +160,7 @@ void ToonEngine::init() {
 
 	_lastMouseButton = 0;
 	_mouseButton = 0;
+	_lastRenderTime = _system->getMillis();
 }
 
 void ToonEngine::waitForScriptStep() {
@@ -417,6 +418,15 @@ void ToonEngine::render() {
 	} else {
 		copyToVirtualScreen(true);
 	}
+
+	// add a little sleep here if needed.
+	int32 newMillis = (int32)_system->getMillis();
+	if(newMillis - _lastRenderTime  < _tickLength) {
+		int32 sleepMs = _tickLength - ( _system->getMillis() - _lastRenderTime );
+		assert(sleepMs >= 0);
+		_system->delayMillis(sleepMs);
+	}
+	_lastRenderTime = _system->getMillis();
 }
 
 void ToonEngine::doMagnifierEffect() {
diff --git a/engines/toon/toon.h b/engines/toon/toon.h
index c16336722d..0627674cd6 100644
--- a/engines/toon/toon.h
+++ b/engines/toon/toon.h
@@ -407,6 +407,7 @@ protected:
 
 	int32 _oldTimer;
 	int32 _oldTimer2;
+	int32 _lastRenderTime;
 
 	Movie *_moviePlayer;
 
-- 
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