sound.cpp

经典开源游戏glest的源代码

// ==============================================================
//	This file is part of Glest Shared Library (www.glest.org)
//
//	Copyright (C) 2001-2008 Marti駉 Figueroa
//
//	You can redistribute this code and/or modify it under 
//	the terms of the GNU General Public License as published 
//	by the Free Software Foundation; either version 2 of the 
//	License, or (at your option) any later version
// ==============================================================

#include "sound.h"

#include <fstream>
#include <stdexcept>

#include "leak_dumper.h"

namespace Shared{ namespace Sound{
// =====================================================
//	class SoundInfo
// =====================================================

SoundInfo::SoundInfo(){
	channels= 0;
	samplesPerSecond= 0;
	bitsPerSample= 0;
	size= 0;
}

// =====================================================
//	class Sound
// =====================================================

Sound::Sound(){
	volume= 0.0f;
}

// =====================================================
//	class StaticSound
// =====================================================

StaticSound::StaticSound(){
	samples= NULL;
}

StaticSound::~StaticSound(){
	delete [] samples;
}

void StaticSound::load(const string &path){
	string ext= path.substr(path.find_last_of('.')+1);

	soundFileLoader= SoundFileLoaderFactory::getInstance()->newInstance(ext);

	soundFileLoader->open(path, &info);
	samples= new int8[info.getSize()];
	soundFileLoader->read(samples, info.getSize());
	soundFileLoader->close();

	delete soundFileLoader;
}

// =====================================================
//	class StrSound
// =====================================================

StrSound::StrSound(){
	soundFileLoader= NULL;
	next= NULL;
}

StrSound::~StrSound(){
	close();
}

void StrSound::open(const string &path){
	string ext= path.substr(path.find_last_of('.')+1);

	soundFileLoader= SoundFileLoaderFactory::getInstance()->newInstance(ext);
	soundFileLoader->open(path, &info);
}

uint32 StrSound::read(int8 *samples, uint32 size){
	return soundFileLoader->read(samples, size);
}

void StrSound::close(){
	if(soundFileLoader!=NULL){
		soundFileLoader->close();
		delete soundFileLoader;
		soundFileLoader= NULL;
	}
}

void StrSound::restart(){
	soundFileLoader->restart();
}

}}//end namespace