void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
// check if we have this already
if (iter == s_effects.end())
{
ALuint buffer;
ALuint source;
soundData *data = new soundData;
string path = pszFilePath;
buffer = alutCreateBufferFromFile(path.data());
if (buffer == AL_NONE)
{
fprintf(stderr, "Error loading file: '%s'\n", path.data());
alDeleteBuffers(1, &buffer);
return;
}
alGenSources(1, &source);
alSourcei(source, AL_BUFFER, buffer);
data->isLooped = false;
data->buffer = buffer;
data->source = source;
s_effects.insert(EffectsMap::value_type(pszFilePath, data));
}
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
if (iter == s_effects.end())
{
preloadEffect(pszFilePath);
// let's try again
iter = s_effects.find(pszFilePath);
if (iter == s_effects.end())
{
fprintf(stderr, "could not find play sound %s\n", pszFilePath);
return -1;
}
}
checkALError("playEffect");
iter->second->isLooped = bLoop;
alSourcei(iter->second->source, AL_LOOPING, iter->second->isLooped ? AL_TRUE : AL_FALSE);
alSourcePlay(iter->second->source);
checkALError("playEffect");
return iter->second->source;
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop)
{
// Changing file path to full path
std::string fullPath = CCFileUtils::sharedFileUtils()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
preloadEffect(fullPath.c_str());
// let's try again
iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
fprintf(stderr, "could not find play sound %s\n", fullPath.c_str());
return -1;
}
}
checkALError("playEffect");
iter->second->isLooped = bLoop;
alSourcei(iter->second->source, AL_LOOPING, iter->second->isLooped ? AL_TRUE : AL_FALSE);
alSourcePlay(iter->second->source);
checkALError("playEffect");
return iter->second->source;
}
void SimpleAudioEngine::end()
{
checkALError("end");
// clear all the sounds
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::iterator it = s_effects.begin(); it != end; it++)
{
alSourceStop(it->second->source);
checkALError("end");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end");
alDeleteSources(1, &it->second->source);
checkALError("end");
delete it->second;
}
s_effects.clear();
// and the background too
stopBackground(true);
for (BackgroundMusicsMap::iterator it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
alSourceStop(it->second->source);
checkALError("end");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end");
alDeleteSources(1, &it->second->source);
checkALError("end");
delete it->second;
}
s_backgroundMusics.clear();
}
void SimpleAudioEngine::pauseAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
alSourcePause(iter->second->source);
checkALError("pauseAllEffects");
}
}
void SimpleAudioEngine::resumeAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
checkALError("resumeAllEffects");
alSourcePlay(iter->second->source);
checkALError("resumeAllEffects");
}
}
void SimpleAudioEngine::stopAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
checkALError("stopAllEffects:init");
alSourceStop(iter->second->source);
checkALError("stopAllEffects:alSourceStop");
}
}
void SimpleAudioEngine::stopAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
alSourceStop(iter->second->source);
int err = alGetError();
if (err != AL_NO_ERROR)
printALError(err);
}
}
void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
// Changing file path to full path
std::string fullPath = CCFileUtils::sharedFileUtils()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
// check if we have this already
if (iter == s_effects.end())
{
ALuint buffer;
ALuint source;
soundData *data = new soundData;
string path = fullPath;
checkALError("preloadEffect");
if (isOGGFile(path.data()))
{
buffer = createBufferFromOGG(path.data());
}
else
{
buffer = alutCreateBufferFromFile(path.data());
checkALError("preloadEffect");
}
if (buffer == AL_NONE)
{
fprintf(stderr, "Error loading file: '%s'\n", path.data());
alDeleteBuffers(1, &buffer);
return;
}
alGenSources(1, &source);
if (checkALError("preloadEffect") != AL_NO_ERROR)
{
alDeleteBuffers(1, &buffer);
return;
}
alSourcei(source, AL_BUFFER, buffer);
checkALError("preloadEffect");
data->isLooped = false;
data->buffer = buffer;
data->source = source;
s_effects.insert(EffectsMap::value_type(fullPath, data));
}
}
void SimpleAudioEngine::resumeAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
ALint state;
while (iter != s_effects.end())
{
alGetSourcei(iter->second->source, AL_SOURCE_STATE, &state);
if (state == AL_PAUSED)
alSourcePlay(iter->second->source);
checkALError("resumeAllEffects:alSourcePlay");
++iter;
}
}
void SimpleAudioEngine::pauseAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
ALint state;
while (iter != s_effects.end())
{
alGetSourcei(iter->second->source, AL_SOURCE_STATE, &state);
if (state == AL_PLAYING)
alSourcePause(iter->second->source);
checkALError("pauseAllEffects");
++iter;
}
}
void SimpleAudioEngine::setEffectsVolume(float volume)
{
if (volume != s_effectVolume)
{
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::const_iterator it = s_effects.begin(); it != end; it++)
{
alSourcef(it->second->source, AL_GAIN, volume * it->second->gain);
}
s_effectVolume = volume;
}
}
void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
// Changing file path to full path
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
// check if we have this already
if (iter == s_effects.end())
{
ALuint buffer = AL_NONE;
ALuint source = AL_NONE;
checkALError("preloadEffect:init");
OpenALFile file;
file.debugName = pszFilePath;
file.file = fopen(fullPath.c_str(), "rb");
if (!file.file) {
fprintf(stderr, "Cannot read file: '%s'\n", fullPath.data());
return;
}
bool success = false;
const std::vector<OpenALDecoder *> &decoders = OpenALDecoder::getDecoders();
for (size_t i = 0, n = decoders.size(); !success && i < n; ++i)
success = decoders[i]->decode(file, buffer);
file.clear();
alGenSources(1, &source);
if (checkALError("preloadEffect:alGenSources") != AL_NO_ERROR)
{
alDeleteBuffers(1, &buffer);
return;
}
alSourcei(source, AL_BUFFER, buffer);
checkALError("preloadEffect:alSourcei");
soundData *data = new soundData;
data->isLooped = false;
data->buffer = buffer;
data->source = source;
data->pitch = 1.0;
data->pan = 0.0;
data->gain = 1.0;
s_effects.insert(EffectsMap::value_type(fullPath, data));
}
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
std::string key = std::string(pszFilePath);
if(!s_effects.count(key))
{
return;
}
struct soundData *sound = s_effects[key];
Mix_FreeChunk(sound->chunk);
delete sound;
s_effects.erase(key);
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop,
float pitch, float pan, float gain)
{
std::string key = std::string(pszFilePath);
struct soundData *sound;
if(!s_effects.count(key))
{
sound = new struct soundData();
sound->chunk = Mix_LoadWAV(pszFilePath);
sound->isLooped = bLoop;
s_effects[key] = sound;
}
else
{
sound = s_effects[key];
}
// This is safe here since Emscripten is just passing back an
// incrementing integer each time you use the Mix_LoadWAV method.
unsigned int result = (unsigned int) sound->chunk;
// XXX: This is a bit of a hack, but... Choose a channel based on the
// modulo of the # of channels. This allows us to set the volume
// without passing around both chunk address and channel.
Mix_PlayChannel(result % NR_CHANNELS, sound->chunk, bLoop ? -1 : 0);
return result;
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
if (iter != s_effects.end())
{
alSourceStop(iter->second->source);
alDeleteSources(1, &iter->second->source);
alDeleteBuffers(1, &iter->second->buffer);
delete iter->second;
int err = alGetError();
if (err != AL_NO_ERROR)
printALError(err);
s_effects.erase(iter);
}
}
void SimpleAudioEngine::end()
{
checkALError("end:init");
// clear all the sound effects
EffectsMap::const_iterator end = s_effects.end();
for (auto it = s_effects.begin(); it != end; ++it)
{
alSourceStop(it->second->source);
checkALError("end:alSourceStop");
alDeleteSources(1, &it->second->source);
checkALError("end:alDeleteSources");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end:alDeleteBuffers");
delete it->second;
}
s_effects.clear();
// and the background music too
stopBackground(true);
for (auto it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
alSourceStop(it->second->source);
checkALError("end:alSourceStop");
alDeleteSources(1, &it->second->source);
checkALError("end:alDeleteSources");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end:alDeleteBuffers");
delete it->second;
}
s_backgroundMusics.clear();
CC_SAFE_DELETE(s_engine);
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
if (iter != s_effects.end())
{
checkALError("unloadEffect");
alSourceStop(iter->second->source);
checkALError("unloadEffect");
alDeleteSources(1, &iter->second->source);
checkALError("unloadEffect");
alDeleteBuffers(1, &iter->second->buffer);
checkALError("unloadEffect");
delete iter->second;
s_effects.erase(iter);
}
}
void SimpleAudioEngine::end()
{
// clear all the sounds
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::iterator it = s_effects.begin(); it != end; it++)
{
Mix_FreeChunk(it->second->chunk);
delete it->second;
}
s_effects.clear();
// and the background too
stopBackground(true);
for (BackgroundMusicsMap::iterator it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
Mix_FreeMusic(it->second->music);
delete it->second;
}
s_backgroundMusics.clear();
}
void SimpleAudioEngine::end()
{
// clear all the sounds
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::iterator it = s_effects.begin(); it != end; it++)
{
alSourceStop(it->second->source);
alDeleteBuffers(1, &it->second->buffer);
alDeleteSources(1, &it->second->source);
delete it->second;
}
s_effects.clear();
if (s_isBackgroundInitialized)
{
s_isBackgroundInitialized = false;
}
// and the background too
stopBackground(true);
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop,
float pitch, float pan, float gain)
{
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
preloadEffect(fullPath.c_str());
// let's try again
iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
fprintf(stderr, "could not find play sound %s\n", fullPath.c_str());
return -1;
}
}
checkALError("playEffect:init");
soundData &d = *iter->second;
d.isLooped = bLoop;
d.pitch = pitch;
d.pan = pan;
d.gain = gain;
alSourcei(d.source, AL_LOOPING, d.isLooped ? AL_TRUE : AL_FALSE);
alSourcef(d.source, AL_GAIN, s_effectVolume * d.gain);
alSourcef(d.source, AL_PITCH, d.pitch);
float sourcePosAL[] = {d.pan, 0.0f, 0.0f};//Set position - just using left and right panning
alSourcefv(d.source, AL_POSITION, sourcePosAL);
alSourcePlay(d.source);
checkALError("playEffect:alSourcePlay");
return d.source;
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
// Changing file path to full path
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
if (iter != s_effects.end())
{
checkALError("unloadEffect:init");
alSourceStop(iter->second->source);
checkALError("unloadEffect:alSourceStop");
alDeleteSources(1, &iter->second->source);
checkALError("unloadEffect:DeletSources");
alDeleteBuffers(1, &iter->second->buffer);
checkALError("unloadEffect:alDeleteBuffers");
delete iter->second;
s_effects.erase(iter);
}
}
void System<EffectsComp>::update(double elapsed)
{
std::map<ObjectId,EffectsComp>::iterator iCom = components_.begin();
while(iCom!=components_.end())
{
EffectsComp* effectsComp = &iCom->second;
EffectsMap* effectsMap = effectsComp->getEffects();
// std::cout << "Address of effectsMap: "<< effectsMap << std::endl;
// std::cout << "copy of effects map size : "<< effectsMap->size() << std::endl;
// std::cout << "orig effects map size : " << effectsComp->getEffects()->size() << std::endl;
//update each effect in component as necessary
EffectsMap::iterator iEffect = effectsMap->begin();
while(iEffect!=effectsMap->end())
{
//update timer if necessary
if(iEffect->second->hasDuration())
{
iEffect->second->updateDuration(elapsed);
//check if timer has expired
if (iEffect->second->hasExpired())
{
//do on end messages
std::vector<Parameters> endParams = iEffect->second->getOnEnd();
std::vector<Parameters>::iterator iParams = endParams.begin();
while(iParams!= endParams.end())
{
if(iParams->size()>0)
{
Message msg(effectsComp->getId(), effectsComp->getId(), *iParams);
Telegram tel(effectsComp->getId(), effectsComp->getId(), 0.0, msg);
core_->getMessageCentre()->addTelegram(tel);
}
++iParams;
}
//delete params
effectsMap->erase(iEffect++);
continue;
}
}
//carry out onUpdate messages
std::vector<Parameters> updateParams = iEffect->second->getOnUpdate();
std::vector<Parameters>::iterator iParams = updateParams.begin();
while(iParams!= updateParams.end())
{
if(iParams->size()>0)
{
Message msg(effectsComp->getId(), effectsComp->getId(), *iParams);
Telegram tel(effectsComp->getId(), effectsComp->getId(), 0.0, msg);
core_->getMessageCentre()->addTelegram(tel);
}
++iParams;
}
++iEffect;
}
++iCom;
}
}
namespace CocosDenshion
{
struct soundData {
ALuint buffer;
ALuint source;
bool isLooped;
};
typedef map<string, soundData *> EffectsMap;
EffectsMap s_effects;
typedef enum {
PLAYING,
STOPPED,
PAUSED,
} playStatus;
static int s_audioOid;
static float s_volume = 1.0f;
static float s_effectVolume = 1.0f;
static bool s_isBackgroundInitialized = false;
static bool s_hasMMRError = false;
static playStatus s_playStatus = STOPPED;
static string s_currentBackgroundStr;
static mmr_connection_t *s_mmrConnection = 0;
static mmr_context_t *s_mmrContext = 0;
static strm_dict_t *s_repeatDictionary = 0;
static strm_dict_t *s_volumeDictionary = 0;
static SimpleAudioEngine *s_engine = 0;
static void printALError(int err)
{
switch (err)
{
case AL_NO_ERROR:
fprintf(stderr, "AL_NO_ERROR");
break;
case AL_INVALID_NAME:
fprintf(stderr, "AL_INVALID_NAME");
break;
case AL_INVALID_ENUM:
fprintf(stderr, "AL_INVALID_ENUM");
break;
case AL_INVALID_VALUE:
fprintf(stderr, "AL_INVALID_VALUE");
break;
case AL_INVALID_OPERATION:
fprintf(stderr, "AL_INVALID_OPERATION");
break;
case AL_OUT_OF_MEMORY:
fprintf(stderr, "AL_OUT_OF_MEMORY");
break;
};
}
static void mmrerror(mmr_context_t *ctxt, const char *msg)
{
const mmr_error_info_t *err = mmr_error_info( ctxt );
unsigned errcode = (err) ? err->error_code : -1;
const char *name;
fprintf(stderr, "%s: error %d \n", msg, errcode);
s_hasMMRError = true;
}
static void stopBackground(bool bReleaseData)
{
s_playStatus = STOPPED;
if (s_mmrContext)
mmr_stop(s_mmrContext);
if (bReleaseData)
{
if (s_mmrContext)
{
mmr_input_detach(s_mmrContext);
mmr_context_destroy(s_mmrContext);
}
if (s_mmrConnection)
mmr_disconnect(s_mmrConnection);
if (s_repeatDictionary)
strm_dict_destroy(s_repeatDictionary);
if (s_volumeDictionary)
strm_dict_destroy(s_volumeDictionary);
s_mmrContext = 0;
s_mmrConnection = 0;
s_repeatDictionary = 0;
s_volumeDictionary = 0;
s_hasMMRError = false;
s_currentBackgroundStr = "";
s_isBackgroundInitialized = false;
}
}
static void setBackgroundVolume(float volume)
{
if (!s_isBackgroundInitialized)
{
return;
}
char volume_str[128];
// set it up the background volume
strm_dict_t *dictionary = strm_dict_new();
sprintf(volume_str, "%d", (int)(volume * 100) );
s_volumeDictionary = strm_dict_set(dictionary, "volume", volume_str);
if (mmr_output_parameters(s_mmrContext, s_audioOid, s_volumeDictionary) != 0)
{
mmrerror(s_mmrContext, "output parameters");
return;
}
}
SimpleAudioEngine::SimpleAudioEngine()
{
alutInit(0, 0);
}
SimpleAudioEngine::~SimpleAudioEngine()
{
alutExit();
}
SimpleAudioEngine* SimpleAudioEngine::sharedEngine()
{
if (!s_engine)
s_engine = new SimpleAudioEngine();
return s_engine;
}
void SimpleAudioEngine::end()
{
// clear all the sounds
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::iterator it = s_effects.begin(); it != end; it++)
{
alSourceStop(it->second->source);
alDeleteBuffers(1, &it->second->buffer);
alDeleteSources(1, &it->second->source);
delete it->second;
}
s_effects.clear();
if (s_isBackgroundInitialized)
{
s_isBackgroundInitialized = false;
}
// and the background too
stopBackground(true);
}
void SimpleAudioEngine::setResource(const char* pszZipFileName)
{
}
//
// background audio (using mmrenderer)
//
void SimpleAudioEngine::preloadBackgroundMusic(const char* pszFilePath)
{
if (!s_isBackgroundInitialized)
{
const char *mmrname = NULL;
const char *ctxtname = "mmrplayer";
char cwd[PATH_MAX];
mode_t mode = S_IRUSR | S_IXUSR;
getcwd(cwd, PATH_MAX);
string path = "file://";
path += cwd;
path += "/";
path += pszFilePath;
s_mmrConnection = mmr_connect(mmrname);
if (!s_mmrConnection)
{
perror("mmr_connect");
s_hasMMRError = true;
return;
}
s_mmrContext = mmr_context_create(s_mmrConnection, ctxtname, 0, mode);
if (!s_mmrContext)
{
perror(ctxtname);
s_hasMMRError = true;
return;
}
if ((s_audioOid = mmr_output_attach(s_mmrContext, "audio:default", "audio")) < 0)
{
mmrerror(s_mmrContext, "audio:default");
return;
}
if (mmr_input_attach(s_mmrContext, path.data(), "autolist") < 0)
{
fprintf(stderr, "unable to load %s\n", path.data());
mmrerror(s_mmrContext, path.data());
return;
}
s_currentBackgroundStr = pszFilePath;
s_isBackgroundInitialized = true;
setBackgroundVolume(s_volume);
}
}
void SimpleAudioEngine::playBackgroundMusic(const char* pszFilePath, bool bLoop)
{
if (0 != strcmp(s_currentBackgroundStr.c_str(), pszFilePath))
{
stopBackgroundMusic(true);
}
else
{
if (s_playStatus == PAUSED)
resumeBackgroundMusic();
else
rewindBackgroundMusic();
}
if (!s_isBackgroundInitialized)
preloadBackgroundMusic(pszFilePath);
if (bLoop)
{
// set it up to loop
strm_dict_t *dictionary = strm_dict_new();
s_repeatDictionary = strm_dict_set(dictionary, "repeat", "all");
if (mmr_input_parameters(s_mmrContext, s_repeatDictionary) != 0)
{
mmrerror(s_mmrContext, "input parameters (loop)");
return;
}
}
if (s_hasMMRError || !s_mmrContext)
return;
if (mmr_play(s_mmrContext) < 0)
{
mmrerror(s_mmrContext, "mmr_play");
s_hasMMRError = true;
}
if (!s_hasMMRError)
s_playStatus = PLAYING;
}
void SimpleAudioEngine::stopBackgroundMusic(bool bReleaseData)
{
// if we were paused then we need to resume first so that we can play
if (s_playStatus == PAUSED)
resumeBackgroundMusic();
stopBackground(bReleaseData);
}
void SimpleAudioEngine::pauseBackgroundMusic()
{
if (s_mmrContext && mmr_speed_set(s_mmrContext, 0) < 0)
{
mmrerror(s_mmrContext, "pause");
}
s_playStatus = PAUSED;
}
void SimpleAudioEngine::resumeBackgroundMusic()
{
if (s_mmrContext && mmr_speed_set(s_mmrContext, 1000) < 0)
{
mmrerror(s_mmrContext, "resume");
}
s_playStatus = PLAYING;
}
void SimpleAudioEngine::rewindBackgroundMusic()
{
if (s_mmrContext && mmr_seek(s_mmrContext, "1:0") < 0)
{
mmrerror(s_mmrContext, "rewind");
}
}
bool SimpleAudioEngine::willPlayBackgroundMusic()
{
return true;
}
bool SimpleAudioEngine::isBackgroundMusicPlaying()
{
return (s_playStatus == PLAYING) && s_isBackgroundInitialized;
}
float SimpleAudioEngine::getBackgroundMusicVolume()
{
return s_volume;
}
void SimpleAudioEngine::setBackgroundMusicVolume(float volume)
{
if (s_volume != volume && volume >= -0.0001 && volume <= 1.0001)
{
s_volume = volume;
setBackgroundVolume(volume);
}
}
//
// Effect audio (using OpenAL)
//
float SimpleAudioEngine::getEffectsVolume()
{
return s_effectVolume;
}
void SimpleAudioEngine::setEffectsVolume(float volume)
{
if (volume != s_effectVolume)
{
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::const_iterator it = s_effects.begin(); it != end; it++)
{
alSourcef(it->second->source, AL_GAIN, volume);
}
s_effectVolume = volume;
}
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
if (iter == s_effects.end())
{
preloadEffect(pszFilePath);
// let's try again
iter = s_effects.find(pszFilePath);
if (iter == s_effects.end())
{
fprintf(stderr, "could not find play sound %s\n", pszFilePath);
return -1;
}
}
iter->second->isLooped = bLoop;
alSourcei(iter->second->source, AL_LOOPING, iter->second->isLooped ? AL_TRUE : AL_FALSE);
alSourcePlay(iter->second->source);
return iter->second->source;
}
void SimpleAudioEngine::stopEffect(unsigned int nSoundId)
{
alSourceStop(nSoundId);
}
void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
// check if we have this already
if (iter == s_effects.end())
{
ALuint buffer;
ALuint source;
soundData *data = new soundData;
string path = pszFilePath;
buffer = alutCreateBufferFromFile(path.data());
if (buffer == AL_NONE)
{
fprintf(stderr, "Error loading file: '%s'\n", path.data());
alDeleteBuffers(1, &buffer);
return;
}
alGenSources(1, &source);
alSourcei(source, AL_BUFFER, buffer);
data->isLooped = false;
data->buffer = buffer;
data->source = source;
s_effects.insert(EffectsMap::value_type(pszFilePath, data));
}
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
if (iter != s_effects.end())
{
alSourceStop(iter->second->source);
alDeleteSources(1, &iter->second->source);
alDeleteBuffers(1, &iter->second->buffer);
delete iter->second;
int err = alGetError();
if (err != AL_NO_ERROR)
printALError(err);
s_effects.erase(iter);
}
}
void SimpleAudioEngine::pauseEffect(unsigned int nSoundId)
{
alSourcePause(nSoundId);
}
void SimpleAudioEngine::pauseAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
alSourcePause(iter->second->source);
int err = alGetError();
if (err != AL_NO_ERROR)
printALError(err);
}
}
void SimpleAudioEngine::resumeEffect(unsigned int nSoundId)
{
alSourcePlay(nSoundId);
}
void SimpleAudioEngine::resumeAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
alSourcePlay(iter->second->source);
int err = alGetError();
if (err != AL_NO_ERROR)
printALError(err);
}
}
void SimpleAudioEngine::stopAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
alSourceStop(iter->second->source);
int err = alGetError();
if (err != AL_NO_ERROR)
printALError(err);
}
}
}
namespace CocosDenshion
{
struct soundData {
ALuint buffer;
ALuint source;
bool isLooped;
};
typedef map<string, soundData *> EffectsMap;
EffectsMap s_effects;
typedef enum {
PLAYING,
STOPPED,
PAUSED,
} playStatus;
static float s_volume = 1.0f;
static float s_effectVolume = 1.0f;
static bool s_isBackgroundInitialized = false;
static std::string s_currentBackgroundStr;
ALuint s_backgroundBuffer;
ALuint s_backgroundSource;
static SimpleAudioEngine *s_engine = 0;
static int checkALError(const char *funcName)
{
int err = alGetError();
if (err != AL_NO_ERROR)
{
switch (err)
{
case AL_INVALID_NAME:
fprintf(stderr, "AL_INVALID_NAME in %s\n", funcName);
break;
case AL_INVALID_ENUM:
fprintf(stderr, "AL_INVALID_ENUM in %s\n", funcName);
break;
case AL_INVALID_VALUE:
fprintf(stderr, "AL_INVALID_VALUE in %s\n", funcName);
break;
case AL_INVALID_OPERATION:
fprintf(stderr, "AL_INVALID_OPERATION in %s\n", funcName);
break;
case AL_OUT_OF_MEMORY:
fprintf(stderr, "AL_OUT_OF_MEMORY in %s\n", funcName);
break;
}
}
return err;
}
static void stopBackground(bool bReleaseData)
{
alSourceStop(s_backgroundSource);
if (bReleaseData)
{
s_currentBackgroundStr = "";
s_isBackgroundInitialized = false;
alDeleteBuffers(1, &s_backgroundBuffer);
checkALError("stopBackground");
alDeleteSources(1, &s_backgroundSource);
checkALError("stopBackground");
}
}
static void setBackgroundVolume(float volume)
{
alSourcef(s_backgroundSource, AL_GAIN, volume);
}
SimpleAudioEngine::SimpleAudioEngine()
{
alutInit(0, 0);
}
SimpleAudioEngine::~SimpleAudioEngine()
{
alutExit();
}
SimpleAudioEngine* SimpleAudioEngine::sharedEngine()
{
if (!s_engine)
s_engine = new SimpleAudioEngine();
return s_engine;
}
void SimpleAudioEngine::end()
{
checkALError("end");
// clear all the sounds
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::iterator it = s_effects.begin(); it != end; it++)
{
alSourceStop(it->second->source);
checkALError("end");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end");
alDeleteSources(1, &it->second->source);
checkALError("end");
delete it->second;
}
s_effects.clear();
// and the background too
stopBackground(true);
}
void SimpleAudioEngine::setResource(const char* pszZipFileName)
{
}
//
// OGG support
//
static bool isOGGFile(const char *pszFilePath)
{
FILE *file;
OggVorbis_File ogg_file;
int result;
file = fopen(pszFilePath, "rb");
result = ov_test(file, &ogg_file, 0, 0);
ov_clear(&ogg_file);
return (result == 0);
}
static ALuint createBufferFromOGG(const char *pszFilePath)
{
ALuint buffer;
OggVorbis_File ogg_file;
vorbis_info* info;
ALenum format;
int result;
int section;
int err;
unsigned int size = 0;
if (ov_fopen(pszFilePath, &ogg_file) < 0)
{
ov_clear(&ogg_file);
fprintf(stderr, "Could not open OGG file %s\n", pszFilePath);
return -1;
}
info = ov_info(&ogg_file, -1);
if (info->channels == 1)
format = AL_FORMAT_MONO16;
else
format = AL_FORMAT_STEREO16;
// size = #samples * #channels * 2 (for 16 bit)
unsigned int data_size = ov_pcm_total(&ogg_file, -1) * info->channels * 2;
char* data = new char[data_size];
while (size < data_size)
{
result = ov_read(&ogg_file, data + size, data_size - size, 0, 2, 1, §ion);
if (result > 0)
{
size += result;
}
else if (result < 0)
{
delete [] data;
fprintf(stderr, "OGG file problem %s\n", pszFilePath);
return -1;
}
else
{
break;
}
}
if (size == 0)
{
delete [] data;
fprintf(stderr, "Unable to read OGG data\n");
return -1;
}
// clear al errors
checkALError("createBufferFromOGG");
// Load audio data into a buffer.
alGenBuffers(1, &buffer);
if (checkALError("createBufferFromOGG") != AL_NO_ERROR)
{
fprintf(stderr, "Couldn't generate a buffer for OGG file\n");
delete [] data;
return buffer;
}
alBufferData(buffer, format, data, data_size, info->rate);
checkALError("createBufferFromOGG");
delete [] data;
ov_clear(&ogg_file);
return buffer;
}
//
// background audio
//
void SimpleAudioEngine::preloadBackgroundMusic(const char* pszFilePath)
{
if (!s_isBackgroundInitialized || s_currentBackgroundStr != pszFilePath)
{
string path = pszFilePath;
if (isOGGFile(path.data()))
{
s_backgroundBuffer = createBufferFromOGG(path.data());
}
else
{
s_backgroundBuffer = alutCreateBufferFromFile(path.data());
}
checkALError("preloadBackgroundMusic");
if (s_backgroundBuffer == AL_NONE)
{
fprintf(stderr, "Error loading file: '%s'\n", path.data());
alDeleteBuffers(1, &s_backgroundBuffer);
return;
}
alGenSources(1, &s_backgroundSource);
checkALError("preloadBackgroundMusic");
alSourcei(s_backgroundSource, AL_BUFFER, s_backgroundBuffer);
checkALError("preloadBackgroundMusic");
s_currentBackgroundStr = pszFilePath;
}
s_currentBackgroundStr = pszFilePath;
s_isBackgroundInitialized = true;
}
void SimpleAudioEngine::playBackgroundMusic(const char* pszFilePath, bool bLoop)
{
if (!s_isBackgroundInitialized)
preloadBackgroundMusic(pszFilePath);
alSourcei(s_backgroundSource, AL_LOOPING, bLoop ? AL_TRUE : AL_FALSE);
alSourcePlay(s_backgroundSource);
checkALError("playBackgroundMusic");
}
void SimpleAudioEngine::stopBackgroundMusic(bool bReleaseData)
{
stopBackground(bReleaseData);
}
void SimpleAudioEngine::pauseBackgroundMusic()
{
alSourcePause(s_backgroundSource);
checkALError("pauseBackgroundMusic");
}
void SimpleAudioEngine::resumeBackgroundMusic()
{
alSourcePlay(s_backgroundSource);
checkALError("resumeBackgroundMusic");
}
void SimpleAudioEngine::rewindBackgroundMusic()
{
alSourceRewind(s_backgroundSource);
checkALError("rewindBackgroundMusic");
}
bool SimpleAudioEngine::willPlayBackgroundMusic()
{
return true;
}
bool SimpleAudioEngine::isBackgroundMusicPlaying()
{
ALint play_status;
alGetSourcei(s_backgroundSource, AL_SOURCE_STATE, &play_status);
return (play_status == AL_PLAYING);
}
float SimpleAudioEngine::getBackgroundMusicVolume()
{
return s_volume;
}
void SimpleAudioEngine::setBackgroundMusicVolume(float volume)
{
if (s_volume != volume && volume >= -0.0001 && volume <= 1.0001)
{
s_volume = volume;
setBackgroundVolume(volume);
}
}
//
// Effect audio (using OpenAL)
//
float SimpleAudioEngine::getEffectsVolume()
{
return s_effectVolume;
}
void SimpleAudioEngine::setEffectsVolume(float volume)
{
if (volume != s_effectVolume)
{
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::const_iterator it = s_effects.begin(); it != end; it++)
{
alSourcef(it->second->source, AL_GAIN, volume);
}
s_effectVolume = volume;
}
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
if (iter == s_effects.end())
{
preloadEffect(pszFilePath);
// let's try again
iter = s_effects.find(pszFilePath);
if (iter == s_effects.end())
{
fprintf(stderr, "could not find play sound %s\n", pszFilePath);
return -1;
}
}
checkALError("playEffect");
iter->second->isLooped = bLoop;
alSourcei(iter->second->source, AL_LOOPING, iter->second->isLooped ? AL_TRUE : AL_FALSE);
alSourcePlay(iter->second->source);
checkALError("playEffect");
return iter->second->source;
}
void SimpleAudioEngine::stopEffect(unsigned int nSoundId)
{
alSourceStop(nSoundId);
checkALError("stopEffect");
}
void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
// check if we have this already
if (iter == s_effects.end())
{
ALuint buffer;
ALuint source;
soundData *data = new soundData;
string path = pszFilePath;
checkALError("preloadEffect");
if (isOGGFile(path.data()))
{
buffer = createBufferFromOGG(path.data());
}
else
{
buffer = alutCreateBufferFromFile(path.data());
checkALError("preloadEffect");
}
if (buffer == AL_NONE)
{
fprintf(stderr, "Error loading file: '%s'\n", path.data());
alDeleteBuffers(1, &buffer);
return;
}
alGenSources(1, &source);
if (checkALError("preloadEffect") != AL_NO_ERROR)
{
alDeleteBuffers(1, &buffer);
return;
}
alSourcei(source, AL_BUFFER, buffer);
checkALError("preloadEffect");
data->isLooped = false;
data->buffer = buffer;
data->source = source;
s_effects.insert(EffectsMap::value_type(pszFilePath, data));
}
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
EffectsMap::iterator iter = s_effects.find(pszFilePath);
if (iter != s_effects.end())
{
checkALError("unloadEffect");
alSourceStop(iter->second->source);
checkALError("unloadEffect");
alDeleteSources(1, &iter->second->source);
checkALError("unloadEffect");
alDeleteBuffers(1, &iter->second->buffer);
checkALError("unloadEffect");
delete iter->second;
s_effects.erase(iter);
}
}
void SimpleAudioEngine::pauseEffect(unsigned int nSoundId)
{
alSourcePause(nSoundId);
checkALError("pauseEffect");
}
void SimpleAudioEngine::pauseAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
alSourcePause(iter->second->source);
checkALError("pauseAllEffects");
}
}
void SimpleAudioEngine::resumeEffect(unsigned int nSoundId)
{
alSourcePlay(nSoundId);
checkALError("resumeEffect");
}
void SimpleAudioEngine::resumeAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
checkALError("resumeAllEffects");
alSourcePlay(iter->second->source);
checkALError("resumeAllEffects");
}
}
void SimpleAudioEngine::stopAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
checkALError("stopAllEffects");
alSourceStop(iter->second->source);
checkALError("stopAllEffects");
}
}
}
namespace CocosDenshion {
struct soundData {
ALuint buffer;
ALuint source;
bool isLooped;
float pitch;
float pan;
float gain;
};
typedef map<string, soundData *> EffectsMap;
EffectsMap s_effects;
typedef enum {
PLAYING,
STOPPED,
PAUSED,
} playStatus;
static float s_volume = 1.0f;
static float s_effectVolume = 1.0f;
struct backgroundMusicData {
ALuint buffer;
ALuint source;
};
typedef map<string, backgroundMusicData *> BackgroundMusicsMap;
BackgroundMusicsMap s_backgroundMusics;
static ALuint s_backgroundSource = AL_NONE;
static SimpleAudioEngine *s_engine = nullptr;
static int checkALError(const char *funcName)
{
int err = alGetError();
if (err != AL_NO_ERROR)
{
switch (err)
{
case AL_INVALID_NAME:
fprintf(stderr, "AL_INVALID_NAME in %s\n", funcName);
break;
case AL_INVALID_ENUM:
fprintf(stderr, "AL_INVALID_ENUM in %s\n", funcName);
break;
case AL_INVALID_VALUE:
fprintf(stderr, "AL_INVALID_VALUE in %s\n", funcName);
break;
case AL_INVALID_OPERATION:
fprintf(stderr, "AL_INVALID_OPERATION in %s\n", funcName);
break;
case AL_OUT_OF_MEMORY:
fprintf(stderr, "AL_OUT_OF_MEMORY in %s\n", funcName);
break;
}
}
return err;
}
static void stopBackground(bool bReleaseData)
{
// The background music might have been already stopped
// Stop request can come from
// - stopBackgroundMusic(..)
// - end(..)
if (s_backgroundSource != AL_NONE)
alSourceStop(s_backgroundSource);
if (bReleaseData)
{
for (auto it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
if (it->second->source == s_backgroundSource)
{
alDeleteSources(1, &it->second->source);
checkALError("stopBackground:alDeleteSources");
alDeleteBuffers(1, &it->second->buffer);
checkALError("stopBackground:alDeleteBuffers");
delete it->second;
s_backgroundMusics.erase(it);
break;
}
}
}
s_backgroundSource = AL_NONE;
}
static void setBackgroundVolume(float volume)
{
alSourcef(s_backgroundSource, AL_GAIN, volume);
}
SimpleAudioEngine::SimpleAudioEngine()
{
alutInit(0, 0);
#ifdef ENABLE_MPG123
mpg123_init();
#endif
checkALError("SimpleAudioEngine:alutInit");
OpenALDecoder::installDecoders();
}
SimpleAudioEngine::~SimpleAudioEngine()
{
#ifdef ENABLE_MPG123
mpg123_exit();
#endif
alutExit();
}
SimpleAudioEngine* SimpleAudioEngine::getInstance()
{
if (!s_engine)
s_engine = new SimpleAudioEngine();
return s_engine;
}
void SimpleAudioEngine::end()
{
checkALError("end:init");
// clear all the sound effects
EffectsMap::const_iterator end = s_effects.end();
for (auto it = s_effects.begin(); it != end; ++it)
{
alSourceStop(it->second->source);
checkALError("end:alSourceStop");
alDeleteSources(1, &it->second->source);
checkALError("end:alDeleteSources");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end:alDeleteBuffers");
delete it->second;
}
s_effects.clear();
// and the background music too
stopBackground(true);
for (auto it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
alSourceStop(it->second->source);
checkALError("end:alSourceStop");
alDeleteSources(1, &it->second->source);
checkALError("end:alDeleteSources");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end:alDeleteBuffers");
delete it->second;
}
s_backgroundMusics.clear();
CC_SAFE_DELETE(s_engine);
}
//
// background audio
//
void SimpleAudioEngine::preloadBackgroundMusic(const char* pszFilePath)
{
// Changing file path to full path
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
BackgroundMusicsMap::const_iterator it = s_backgroundMusics.find(fullPath);
if (it == s_backgroundMusics.end())
{
ALuint buffer = AL_NONE;
bool success = false;
OpenALFile file;
file.debugName = pszFilePath;
file.file = fopen(fullPath.c_str(), "rb");
if (!file.file) {
fprintf(stderr, "Cannot read file: '%s'\n", fullPath.data());
return;
}
const std::vector<OpenALDecoder *> &decoders = OpenALDecoder::getDecoders();
for (size_t i = 0, n = decoders.size(); !success && i < n; ++i)
success = decoders[i]->decode(file, buffer);
file.clear();
ALuint source = AL_NONE;
alGenSources(1, &source);
checkALError("preloadBackgroundMusic:alGenSources");
alSourcei(source, AL_BUFFER, buffer);
checkALError("preloadBackgroundMusic:alSourcei");
backgroundMusicData* data = new backgroundMusicData();
data->buffer = buffer;
data->source = source;
s_backgroundMusics.insert(BackgroundMusicsMap::value_type(fullPath, data));
}
}
void SimpleAudioEngine::playBackgroundMusic(const char* pszFilePath, bool bLoop)
{
// If there is already a background music source we stop it first
if (s_backgroundSource != AL_NONE)
stopBackgroundMusic(false);
// Changing file path to full path
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
BackgroundMusicsMap::const_iterator it = s_backgroundMusics.find(fullPath);
if (it == s_backgroundMusics.end())
{
preloadBackgroundMusic(fullPath.c_str());
it = s_backgroundMusics.find(fullPath);
}
if (it != s_backgroundMusics.end())
{
s_backgroundSource = it->second->source;
alSourcei(s_backgroundSource, AL_LOOPING, bLoop ? AL_TRUE : AL_FALSE);
setBackgroundVolume(s_volume);
alSourcePlay(s_backgroundSource);
checkALError("playBackgroundMusic:alSourcePlay");
}
}
void SimpleAudioEngine::stopBackgroundMusic(bool bReleaseData)
{
// If there is no source, then there is nothing that can be stopped
if (s_backgroundSource == AL_NONE)
return;
ALint state;
alGetSourcei(s_backgroundSource, AL_SOURCE_STATE, &state);
if (state == AL_PLAYING)
stopBackground(bReleaseData);
}
void SimpleAudioEngine::pauseBackgroundMusic()
{
// If there is no source, then there is nothing that can be paused
if (s_backgroundSource == AL_NONE)
return;
ALint state;
alGetSourcei(s_backgroundSource, AL_SOURCE_STATE, &state);
if (state == AL_PLAYING)
alSourcePause(s_backgroundSource);
checkALError("pauseBackgroundMusic:alSourcePause");
}
void SimpleAudioEngine::resumeBackgroundMusic()
{
// If there is no source, then there is nothing that can be resumed
if (s_backgroundSource == AL_NONE)
return;
ALint state;
alGetSourcei(s_backgroundSource, AL_SOURCE_STATE, &state);
if (state == AL_PAUSED)
alSourcePlay(s_backgroundSource);
checkALError("resumeBackgroundMusic:alSourcePlay");
}
void SimpleAudioEngine::rewindBackgroundMusic()
{
// If there is no source, then there is nothing that can be rewinded
if (s_backgroundSource == AL_NONE)
return;
// Rewind and prevent the last state the source had
ALint state;
alGetSourcei(s_backgroundSource, AL_SOURCE_STATE, &state);
alSourceRewind(s_backgroundSource);
if (state == AL_PLAYING)
{
alSourcePlay(s_backgroundSource);
}
else if (state == AL_PAUSED)
{
alSourcePlay(s_backgroundSource);
alSourcePause(s_backgroundSource);
}
checkALError("rewindBackgroundMusic:alSourceRewind");
}
bool SimpleAudioEngine::willPlayBackgroundMusic()
{
// We are able to play background music
// if we have a valid background source
if (s_backgroundSource == AL_NONE)
return false;
return (alIsSource(s_backgroundSource) == AL_TRUE ? true : false);
}
bool SimpleAudioEngine::isBackgroundMusicPlaying()
{
// If there is no source, then there is nothing that is playing
if (s_backgroundSource == AL_NONE)
return false;
ALint play_status;
alGetSourcei(s_backgroundSource, AL_SOURCE_STATE, &play_status);
checkALError("isBackgroundMusicPlaying:alGetSourcei");
return (play_status == AL_PLAYING);
}
float SimpleAudioEngine::getBackgroundMusicVolume()
{
return s_volume;
}
void SimpleAudioEngine::setBackgroundMusicVolume(float volume)
{
if (s_volume != volume && volume >= -0.0001 && volume <= 1.0001)
{
s_volume = volume;
// No source, no background music, no volume adjustment
if (s_backgroundSource != AL_NONE)
{
setBackgroundVolume(volume);
}
}
}
//
// Effect audio (using OpenAL)
//
float SimpleAudioEngine::getEffectsVolume()
{
return s_effectVolume;
}
void SimpleAudioEngine::setEffectsVolume(float volume)
{
if (volume != s_effectVolume)
{
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::const_iterator it = s_effects.begin(); it != end; it++)
{
alSourcef(it->second->source, AL_GAIN, volume * it->second->gain);
}
s_effectVolume = volume;
}
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop,
float pitch, float pan, float gain)
{
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
preloadEffect(fullPath.c_str());
// let's try again
iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
fprintf(stderr, "could not find play sound %s\n", fullPath.c_str());
return -1;
}
}
checkALError("playEffect:init");
soundData &d = *iter->second;
d.isLooped = bLoop;
d.pitch = pitch;
d.pan = pan;
d.gain = gain;
alSourcei(d.source, AL_LOOPING, d.isLooped ? AL_TRUE : AL_FALSE);
alSourcef(d.source, AL_GAIN, s_effectVolume * d.gain);
alSourcef(d.source, AL_PITCH, d.pitch);
float sourcePosAL[] = {d.pan, 0.0f, 0.0f};//Set position - just using left and right panning
alSourcefv(d.source, AL_POSITION, sourcePosAL);
alSourcePlay(d.source);
checkALError("playEffect:alSourcePlay");
return d.source;
}
void SimpleAudioEngine::stopEffect(unsigned int nSoundId)
{
alSourceStop(nSoundId);
checkALError("stopEffect:alSourceStop");
}
void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
// Changing file path to full path
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
// check if we have this already
if (iter == s_effects.end())
{
ALuint buffer = AL_NONE;
ALuint source = AL_NONE;
checkALError("preloadEffect:init");
OpenALFile file;
file.debugName = pszFilePath;
file.file = fopen(fullPath.c_str(), "rb");
if (!file.file) {
fprintf(stderr, "Cannot read file: '%s'\n", fullPath.data());
return;
}
bool success = false;
const std::vector<OpenALDecoder *> &decoders = OpenALDecoder::getDecoders();
for (size_t i = 0, n = decoders.size(); !success && i < n; ++i)
success = decoders[i]->decode(file, buffer);
file.clear();
alGenSources(1, &source);
if (checkALError("preloadEffect:alGenSources") != AL_NO_ERROR)
{
alDeleteBuffers(1, &buffer);
return;
}
alSourcei(source, AL_BUFFER, buffer);
checkALError("preloadEffect:alSourcei");
soundData *data = new soundData;
data->isLooped = false;
data->buffer = buffer;
data->source = source;
data->pitch = 1.0;
data->pan = 0.0;
data->gain = 1.0;
s_effects.insert(EffectsMap::value_type(fullPath, data));
}
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
// Changing file path to full path
std::string fullPath = FileUtils::getInstance()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
if (iter != s_effects.end())
{
checkALError("unloadEffect:init");
alSourceStop(iter->second->source);
checkALError("unloadEffect:alSourceStop");
alDeleteSources(1, &iter->second->source);
checkALError("unloadEffect:DeletSources");
alDeleteBuffers(1, &iter->second->buffer);
checkALError("unloadEffect:alDeleteBuffers");
delete iter->second;
s_effects.erase(iter);
}
}
void SimpleAudioEngine::pauseEffect(unsigned int nSoundId)
{
ALint state;
alGetSourcei(nSoundId, AL_SOURCE_STATE, &state);
if (state == AL_PLAYING)
alSourcePause(nSoundId);
checkALError("pauseEffect:alSourcePause");
}
void SimpleAudioEngine::pauseAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
ALint state;
while (iter != s_effects.end())
{
alGetSourcei(iter->second->source, AL_SOURCE_STATE, &state);
if (state == AL_PLAYING)
alSourcePause(iter->second->source);
checkALError("pauseAllEffects:alSourcePause");
++iter;
}
}
void SimpleAudioEngine::resumeEffect(unsigned int nSoundId)
{
ALint state;
alGetSourcei(nSoundId, AL_SOURCE_STATE, &state);
if (state == AL_PAUSED)
alSourcePlay(nSoundId);
checkALError("resumeEffect:alSourcePlay");
}
void SimpleAudioEngine::resumeAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
ALint state;
while (iter != s_effects.end())
{
alGetSourcei(iter->second->source, AL_SOURCE_STATE, &state);
if (state == AL_PAUSED)
alSourcePlay(iter->second->source);
checkALError("resumeAllEffects:alSourcePlay");
++iter;
}
}
void SimpleAudioEngine::stopAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
checkALError("stopAllEffects:init");
alSourceStop(iter->second->source);
checkALError("stopAllEffects:alSourceStop");
}
}
} // namespace CocosDenshion {
namespace CocosDenshion
{
struct soundData {
Mix_Chunk *chunk;
bool isLooped;
};
typedef map<string, soundData *> EffectsMap;
EffectsMap s_effects;
float s_effectsVolume = 1.0;
typedef enum {
PLAYING,
STOPPED,
PAUSED,
} playStatus;
struct backgroundMusicData {
Mix_Music *music;
};
typedef map<string, backgroundMusicData *> BackgroundMusicsMap;
BackgroundMusicsMap s_backgroundMusics;
float s_backgroundVolume = 1.0;
static SimpleAudioEngine *s_engine = 0;
// Unfortunately this is just hard-coded in Emscripten's SDL
// implementation.
static const int NR_CHANNELS = 32;
static void stopBackground(bool bReleaseData)
{
SimpleAudioEngine *engine = SimpleAudioEngine::getInstance();
engine->stopBackgroundMusic();
}
SimpleAudioEngine::SimpleAudioEngine()
{
}
SimpleAudioEngine::~SimpleAudioEngine()
{
}
SimpleAudioEngine* SimpleAudioEngine::getInstance()
{
if (!s_engine)
s_engine = new SimpleAudioEngine();
return s_engine;
}
void SimpleAudioEngine::end()
{
// clear all the sounds
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::iterator it = s_effects.begin(); it != end; it++)
{
Mix_FreeChunk(it->second->chunk);
delete it->second;
}
s_effects.clear();
// and the background too
stopBackground(true);
for (BackgroundMusicsMap::iterator it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
Mix_FreeMusic(it->second->music);
delete it->second;
}
s_backgroundMusics.clear();
}
//
// background audio
//
void SimpleAudioEngine::preloadBackgroundMusic(const char* pszFilePath)
{
}
void SimpleAudioEngine::playBackgroundMusic(const char* pszFilePath, bool bLoop)
{
std::string key = std::string(pszFilePath);
struct backgroundMusicData *musicData;
if(!s_backgroundMusics.count(key))
{
musicData = new struct backgroundMusicData();
musicData->music = Mix_LoadMUS(pszFilePath);
s_backgroundMusics[key] = musicData;
}
else
{
musicData = s_backgroundMusics[key];
}
Mix_PlayMusic(musicData->music, bLoop ? -1 : 0);
}
void SimpleAudioEngine::stopBackgroundMusic(bool bReleaseData)
{
Mix_HaltMusic();
}
void SimpleAudioEngine::pauseBackgroundMusic()
{
Mix_PauseMusic();
}
void SimpleAudioEngine::resumeBackgroundMusic()
{
Mix_ResumeMusic();
}
void SimpleAudioEngine::rewindBackgroundMusic()
{
CCLOGWARN("Cannot rewind background in Emscripten");
}
bool SimpleAudioEngine::willPlayBackgroundMusic()
{
return true;
}
bool SimpleAudioEngine::isBackgroundMusicPlaying()
{
return Mix_PlayingMusic();
}
float SimpleAudioEngine::getBackgroundMusicVolume()
{
return s_backgroundVolume;
}
void SimpleAudioEngine::setBackgroundMusicVolume(float volume)
{
// Ensure volume is between 0.0 and 1.0.
volume = volume > 1.0 ? 1.0 : volume;
volume = volume < 0.0 ? 0.0 : volume;
Mix_VolumeMusic(volume * MIX_MAX_VOLUME);
s_backgroundVolume = volume;
}
float SimpleAudioEngine::getEffectsVolume()
{
return s_effectsVolume;
}
void SimpleAudioEngine::setEffectsVolume(float volume)
{
volume = volume > 1.0 ? 1.0 : volume;
volume = volume < 0.0 ? 0.0 : volume;
// Need to set volume on every channel. SDL will then read this volume
// level and apply it back to the individual sample.
for(int i = 0; i < NR_CHANNELS; i++)
{
Mix_Volume(i, volume * MIX_MAX_VOLUME);
}
s_effectsVolume = volume;
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop,
float pitch, float pan, float gain)
{
std::string key = std::string(pszFilePath);
struct soundData *sound;
if(!s_effects.count(key))
{
sound = new struct soundData();
sound->chunk = Mix_LoadWAV(pszFilePath);
sound->isLooped = bLoop;
s_effects[key] = sound;
}
else
{
sound = s_effects[key];
}
// This is safe here since Emscripten is just passing back an
// incrementing integer each time you use the Mix_LoadWAV method.
unsigned int result = (unsigned int) sound->chunk;
// XXX: This is a bit of a hack, but... Choose a channel based on the
// modulo of the # of channels. This allows us to set the volume
// without passing around both chunk address and channel.
Mix_PlayChannel(result % NR_CHANNELS, sound->chunk, bLoop ? -1 : 0);
return result;
}
void SimpleAudioEngine::stopEffect(unsigned int nSoundId)
{
Mix_HaltChannel(nSoundId % NR_CHANNELS);
}
void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
std::string key = std::string(pszFilePath);
if(!s_effects.count(key))
{
return;
}
struct soundData *sound = s_effects[key];
Mix_FreeChunk(sound->chunk);
delete sound;
s_effects.erase(key);
}
void SimpleAudioEngine::pauseEffect(unsigned int nSoundId)
{
Mix_Pause(nSoundId % NR_CHANNELS);
}
void SimpleAudioEngine::pauseAllEffects()
{
for(int i = 0; i < NR_CHANNELS; i++)
{
Mix_Pause(i);
}
}
void SimpleAudioEngine::resumeEffect(unsigned int nSoundId)
{
Mix_Resume(nSoundId % NR_CHANNELS);
}
void SimpleAudioEngine::resumeAllEffects()
{
for(int i = 0; i < NR_CHANNELS; i++)
{
Mix_Resume(i);
}
}
void SimpleAudioEngine::stopAllEffects()
{
for(int i = 0; i < NR_CHANNELS; i++)
{
Mix_HaltChannel(i);
}
}
}
namespace CocosDenshion
{
struct soundData {
ALuint buffer;
ALuint source;
bool isLooped;
};
typedef map<string, soundData *> EffectsMap;
EffectsMap s_effects;
typedef enum {
PLAYING,
STOPPED,
PAUSED,
} playStatus;
static float s_volume = 1.0f;
static float s_effectVolume = 1.0f;
struct backgroundMusicData {
ALuint buffer;
ALuint source;
};
typedef map<string, backgroundMusicData *> BackgroundMusicsMap;
BackgroundMusicsMap s_backgroundMusics;
static ALuint s_backgroundSource = AL_NONE;
static SimpleAudioEngine *s_engine = 0;
static int checkALError(const char *funcName)
{
int err = alGetError();
if (err != AL_NO_ERROR)
{
switch (err)
{
case AL_INVALID_NAME:
fprintf(stderr, "AL_INVALID_NAME in %s\n", funcName);
break;
case AL_INVALID_ENUM:
fprintf(stderr, "AL_INVALID_ENUM in %s\n", funcName);
break;
case AL_INVALID_VALUE:
fprintf(stderr, "AL_INVALID_VALUE in %s\n", funcName);
break;
case AL_INVALID_OPERATION:
fprintf(stderr, "AL_INVALID_OPERATION in %s\n", funcName);
break;
case AL_OUT_OF_MEMORY:
fprintf(stderr, "AL_OUT_OF_MEMORY in %s\n", funcName);
break;
}
}
return err;
}
static void stopBackground(bool bReleaseData)
{
s_backgroundSource = AL_NONE;
}
static void setBackgroundVolume(float volume)
{
}
SimpleAudioEngine::SimpleAudioEngine()
{
}
SimpleAudioEngine::~SimpleAudioEngine()
{
}
SimpleAudioEngine* SimpleAudioEngine::sharedEngine()
{
if (!s_engine)
s_engine = new SimpleAudioEngine();
return s_engine;
}
void SimpleAudioEngine::end()
{
checkALError("end");
// clear all the sounds
EffectsMap::const_iterator end = s_effects.end();
for (EffectsMap::iterator it = s_effects.begin(); it != end; it++)
{
alSourceStop(it->second->source);
checkALError("end");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end");
alDeleteSources(1, &it->second->source);
checkALError("end");
delete it->second;
}
s_effects.clear();
// and the background too
stopBackground(true);
for (BackgroundMusicsMap::iterator it = s_backgroundMusics.begin(); it != s_backgroundMusics.end(); ++it)
{
alSourceStop(it->second->source);
checkALError("end");
alDeleteBuffers(1, &it->second->buffer);
checkALError("end");
alDeleteSources(1, &it->second->source);
checkALError("end");
delete it->second;
}
s_backgroundMusics.clear();
}
//
// OGG support
//
static bool isOGGFile(const char *pszFilePath)
{
return true;
}
static ALuint createBufferFromOGG(const char *pszFilePath)
{
}
//
// background audio
//
void SimpleAudioEngine::preloadBackgroundMusic(const char* pszFilePath)
{
}
void SimpleAudioEngine::playBackgroundMusic(const char* pszFilePath, bool bLoop)
{
}
void SimpleAudioEngine::stopBackgroundMusic(bool bReleaseData)
{
}
void SimpleAudioEngine::pauseBackgroundMusic()
{
}
void SimpleAudioEngine::resumeBackgroundMusic()
{
}
void SimpleAudioEngine::rewindBackgroundMusic()
{
}
bool SimpleAudioEngine::willPlayBackgroundMusic()
{
return false;
}
bool SimpleAudioEngine::isBackgroundMusicPlaying()
{
return false;
}
float SimpleAudioEngine::getBackgroundMusicVolume()
{
return s_volume;
}
void SimpleAudioEngine::setBackgroundMusicVolume(float volume)
{
}
//
// Effect audio (using OpenAL)
//
float SimpleAudioEngine::getEffectsVolume()
{
return s_effectVolume;
}
void SimpleAudioEngine::setEffectsVolume(float volume)
{
}
unsigned int SimpleAudioEngine::playEffect(const char* pszFilePath, bool bLoop)
{
// Changing file path to full path
std::string fullPath = CCFileUtils::sharedFileUtils()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
preloadEffect(fullPath.c_str());
// let's try again
iter = s_effects.find(fullPath);
if (iter == s_effects.end())
{
fprintf(stderr, "could not find play sound %s\n", fullPath.c_str());
return -1;
}
}
checkALError("playEffect");
iter->second->isLooped = bLoop;
alSourcei(iter->second->source, AL_LOOPING, iter->second->isLooped ? AL_TRUE : AL_FALSE);
alSourcePlay(iter->second->source);
checkALError("playEffect");
return iter->second->source;
}
void SimpleAudioEngine::stopEffect(unsigned int nSoundId)
{
alSourceStop(nSoundId);
checkALError("stopEffect");
}
void SimpleAudioEngine::preloadEffect(const char* pszFilePath)
{
}
void SimpleAudioEngine::unloadEffect(const char* pszFilePath)
{
// Changing file path to full path
std::string fullPath = CCFileUtils::sharedFileUtils()->fullPathForFilename(pszFilePath);
EffectsMap::iterator iter = s_effects.find(fullPath);
if (iter != s_effects.end())
{
checkALError("unloadEffect");
alSourceStop(iter->second->source);
checkALError("unloadEffect");
alDeleteSources(1, &iter->second->source);
checkALError("unloadEffect");
alDeleteBuffers(1, &iter->second->buffer);
checkALError("unloadEffect");
delete iter->second;
s_effects.erase(iter);
}
}
void SimpleAudioEngine::pauseEffect(unsigned int nSoundId)
{
ALint state;
alGetSourcei(nSoundId, AL_SOURCE_STATE, &state);
if (state == AL_PLAYING)
alSourcePause(nSoundId);
checkALError("pauseEffect");
}
void SimpleAudioEngine::pauseAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
ALint state;
while (iter != s_effects.end())
{
alGetSourcei(iter->second->source, AL_SOURCE_STATE, &state);
if (state == AL_PLAYING)
alSourcePause(iter->second->source);
checkALError("pauseAllEffects");
++iter;
}
}
void SimpleAudioEngine::resumeEffect(unsigned int nSoundId)
{
ALint state;
alGetSourcei(nSoundId, AL_SOURCE_STATE, &state);
if (state == AL_PAUSED)
alSourcePlay(nSoundId);
checkALError("resumeEffect");
}
void SimpleAudioEngine::resumeAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
ALint state;
while (iter != s_effects.end())
{
alGetSourcei(iter->second->source, AL_SOURCE_STATE, &state);
if (state == AL_PAUSED)
alSourcePlay(iter->second->source);
checkALError("resumeAllEffects");
++iter;
}
}
void SimpleAudioEngine::stopAllEffects()
{
EffectsMap::iterator iter = s_effects.begin();
if (iter != s_effects.end())
{
checkALError("stopAllEffects");
alSourceStop(iter->second->source);
checkALError("stopAllEffects");
}
}
}
