axmol/CocosDenshion/airplay/SimpleAudioEngine.cpp

/****************************************************************************
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#include "SimpleAudioEngine.h"
#include "s3e.h"
#include "IwUtil.h"
#include <set>

namespace CocosDenshion
{
	static int16*   g_SoundBuffer = 0;
	static int16*   g_AudioBuffer = 0;
	static int32    g_SoundFileSize = 0;
	static int32    g_AudioFileSize = 0;
	static int      g_SoundChannel = 0;
	static bool     g_SoundIsPlaying = false;
	static s3eBool  g_MP3Support = S3E_FALSE;
	
	
	static SimpleAudioEngine *s_pEngine;

	SimpleAudioEngine::SimpleAudioEngine()
	{

	}

	SimpleAudioEngine::~SimpleAudioEngine()
	{

		
	}

	SimpleAudioEngine* SimpleAudioEngine::sharedEngine()
	{
		if (! s_pEngine)
		{
			s_pEngine = new SimpleAudioEngine();
		}
        
		return s_pEngine;
	}

	void SimpleAudioEngine::end()
	{
		s3eAudioStop();
		s3eFreeBase(g_AudioBuffer);
	}

	void SimpleAudioEngine::setResource(const char* pszZipFileName)
	{

	}

    void SimpleAudioEngine::preloadBackgroundMusic(const char* pszFilePath)
	{
		
			s3eFile *fileHandle = s3eFileOpen(pszFilePath, "rb");
		
			IwAssertMsg(GAME, fileHandle, ("Open file %s Failed. s3eFileError Code : %i", pszFilePath, s3eFileGetError()));
		
			g_AudioFileSize = s3eFileGetSize(fileHandle);
			g_AudioBuffer = (int16*)s3eMallocBase(g_AudioFileSize);
			memset(g_AudioBuffer, 0, g_AudioFileSize);
			s3eFileRead(g_AudioBuffer, g_AudioFileSize, 1, fileHandle);
			s3eFileClose(fileHandle);
	}

	void SimpleAudioEngine::playBackgroundMusic(const char* pszFilePath, bool bLoop)
	{
		s3eResult result;
		
		result = s3eAudioPlayFromBuffer(g_AudioBuffer, g_AudioFileSize, bLoop);
		
		if ( result == S3E_RESULT_ERROR)
		{
			if (bLoop)
			{
				result = s3eAudioPlay(pszFilePath, 1000000);
			}
			else
			{
				result = s3eAudioPlay(pszFilePath, 0);
			}
		}
		
		if ( result == S3E_RESULT_ERROR) 
		{
			IwAssert(GAME, ("Play music %s Failed. Error Code : %s", pszFilePath, s3eAudioGetErrorString()));
		}
	}

	void SimpleAudioEngine::stopBackgroundMusic(bool bReleaseData)
	{
		s3eAudioStop();
		
		if (bReleaseData)
		{
			s3eFreeBase(g_AudioBuffer);
		}

	}

	void SimpleAudioEngine::pauseBackgroundMusic()
	{
		s3eAudioPause();
	}

	void SimpleAudioEngine::resumeBackgroundMusic()
	{
		s3eAudioResume();
	} 

	void SimpleAudioEngine::rewindBackgroundMusic()
	{

	}

	bool SimpleAudioEngine::willPlayBackgroundMusic()
	{
		return true;
	}

	bool SimpleAudioEngine::isBackgroundMusicPlaying()
	{
		return s3eAudioIsPlaying();
	}

	float SimpleAudioEngine::getBackgroundMusicVolume()
	{

		return s3eAudioGetInt(S3E_AUDIO_VOLUME);
	}

	void SimpleAudioEngine::setBackgroundMusicVolume(float volume)
	{
		s3eAudioSetInt(S3E_AUDIO_VOLUME, volume);
	}

	float SimpleAudioEngine::getEffectsVolume()
	{
		return s3eSoundGetInt(S3E_SOUND_VOLUME);
	}

	void SimpleAudioEngine::setEffectsVolume(float volume)
	{
		
		s3eSoundSetInt(S3E_SOUND_VOLUME, volume);
	}

	unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop)
	{
					
		
		int channel = s3eSoundGetFreeChannel();
		
		s3eSoundChannelPlay(channel, g_SoundBuffer, g_SoundFileSize/2, 1, 0);
		
		if (s3eSoundGetError()!= S3E_SOUND_ERR_NONE)
		{
			IwAssertMsg(GAME, false, ("Play sound %s Failed. Error Code : %s", pszFilePath, s3eSoundGetErrorString()));	
		}

		return channel;

	}

	void SimpleAudioEngine::stopEffect(unsigned int nSoundId)
	{
		s3eSoundChannelStop(nSoundId);
	}

	void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
	{
		s3eFile *fileHandle = s3eFileOpen(pszFilePath, "rb");
		
		IwAssertMsg(GAME, fileHandle, ("Open file %s Failed. s3eFileError Code : %i", pszFilePath, s3eFileGetError()));
		
		g_SoundFileSize = s3eFileGetSize(fileHandle);
		g_SoundBuffer = (int16*)s3eMallocBase(g_SoundFileSize);
		memset(g_SoundBuffer, 0, g_SoundFileSize);
		s3eFileRead(g_SoundBuffer, g_SoundFileSize, 1, fileHandle);
		s3eFileClose(fileHandle);
	}

	void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
	{
		s3eFreeBase(g_SoundBuffer);
	}
}