From fad5041a3206da1649702874b563986d65a3626a Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Fri, 21 Sep 2012 03:01:39 +0200
Subject: TOLTECS: Replace ceil with integer maths.

This removes an unnecessary use of floating point maths.
---
 engines/toltecs/menu.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/engines/toltecs/menu.cpp b/engines/toltecs/menu.cpp
index d7ba254d9b..dfdad74839 100644
--- a/engines/toltecs/menu.cpp
+++ b/engines/toltecs/menu.cpp
@@ -582,19 +582,20 @@ void MenuSystem::changeVolumeBar(ItemID itemID, int delta) {
 	switch (itemID) {
 	case kItemIdVoices:
 		_vm->_cfgVoicesVolume = CLIP(_vm->_cfgVoicesVolume + delta, 0, 20);
-		newVolume = ceil((double)_vm->_cfgVoicesVolume * Audio::Mixer::kMaxChannelVolume / 20);
+		// Always round volume up instead of down.
+		newVolume = (_vm->_cfgVoicesVolume * Audio::Mixer::kMaxChannelVolume + 19) / 20;
 		_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, newVolume);
 		ConfMan.setInt("speech_volume", newVolume);
 		break;
 	case kItemIdMusic:
 		_vm->_cfgMusicVolume = CLIP(_vm->_cfgMusicVolume + delta, 0, 20);
-		newVolume = ceil((double)_vm->_cfgMusicVolume * Audio::Mixer::kMaxChannelVolume / 20);
+		newVolume = (_vm->_cfgMusicVolume * Audio::Mixer::kMaxChannelVolume + 19) / 20;
 		_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, newVolume);
 		ConfMan.setInt("music_volume", newVolume);
 		break;
 	case kItemIdSoundFX:
 		_vm->_cfgSoundFXVolume = CLIP(_vm->_cfgSoundFXVolume + delta, 0, 20);
-		newVolume = ceil((double)_vm->_cfgSoundFXVolume * Audio::Mixer::kMaxChannelVolume / 20);
+		newVolume = (_vm->_cfgSoundFXVolume * Audio::Mixer::kMaxChannelVolume + 19) / 20;
 		_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, newVolume);
 		ConfMan.setInt("sfx_volume", newVolume);
 		break;
-- 
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