Merge pull request #16167 from dumganhar/fix/remove-unused-openal

Remove unused code in cocos/audio/openal
This commit is contained in:
minggo 2016-07-20 17:07:22 +08:00 committed by GitHub
commit 6314daeebb
3 changed files with 0 additions and 1103 deletions

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#include "audio/openal/OpenALDecoder.h"
#include <sys/mman.h>
#include <sys/stat.h>
#include <AL/alut.h>
#if CC_TARGET_PLATFORM == CC_PLATFORM_TIZEN
#include <FBase.h>
#include <FBaseCol.h>
#include <FMedia.h>
using namespace Tizen::Base;
using namespace Tizen::Base::Collection;
using namespace Tizen::Media;
#endif
#ifndef DISABLE_VORBIS
#include <vorbis/vorbisfile.h>
#endif
#ifdef ENABLE_MPG123
#include <mpg123.h>
#endif
namespace CocosDenshion {
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;
}
class AlutDecoder : public OpenALDecoder
{
bool decode(OpenALFile &file, ALuint &result)
{
if (!file.mapToMemory())
return false;
result = alutCreateBufferFromFileImage(file.mappedFile, file.fileSize);
if (AL_NONE == result)
return false;
return true;
}
bool acceptsFormat(Format format) const
{
return Wav == format || Raw == format;
}
};
class DataRaii
{
public:
char *data;
size_t size;
DataRaii() : data(0), size(0) {}
~DataRaii() { delete [] data; }
};
#ifdef ENABLE_MPG123
class Mpg123Decoder : public OpenALDecoder
{
private:
mpg123_handle *handle;
public:
class MpgOpenRaii
{
public:
mpg123_handle *handle;
MpgOpenRaii(mpg123_handle *handle) : handle(handle) {}
~MpgOpenRaii() { mpg123_close(handle); }
};
bool getInfo(ALenum &format, ALsizei &freq, ALsizei &size) const
{
int channels = 0;
int encoding = 0;
long rate = 0;
if (MPG123_OK != mpg123_getformat(handle, &rate, &channels, &encoding))
return false;
size = mpg123_length(handle);
if (size == MPG123_ERR)
return false;
freq = rate;
if (encoding == MPG123_ENC_UNSIGNED_8) {
if (channels == 1)
format = AL_FORMAT_MONO8;
else
format = AL_FORMAT_STEREO8;
} else {
if (channels == 1)
format = AL_FORMAT_MONO16;
else
format = AL_FORMAT_STEREO16;
}
return true;
}
bool decode(OpenALFile &file, ALuint &result)
{
if (MPG123_OK != mpg123_open_fd(handle, fileno(file.file)))
return false;
MpgOpenRaii raii(handle);
ALenum format = AL_NONE;
ALsizei freq = 0;
ALsizei size = 0;
if (!getInfo(format, freq, size))
return false;
DataRaii pcm;
pcm.size = size;
if (format == AL_FORMAT_MONO16 || format == AL_FORMAT_STEREO16)
pcm.size *= 2;
pcm.data = new char[pcm.size];
size_t done = 0;
if (MPG123_DONE != mpg123_read(handle, (unsigned char*)pcm.data, pcm.size, &done))
return false;
CCLOG("MP3 BUFFER SIZE: %ld, FORMAT %i.", (long)done, (int)format);
return initALBuffer(result, format, pcm.data, done, freq);
}
bool acceptsFormat(Format format) const
{
return Mp3 == format;
}
Mpg123Decoder()
: handle(mpg123_new(NULL, NULL))
{
if (MPG123_OK != mpg123_format(handle, 44100, MPG123_MONO | MPG123_STEREO,
MPG123_ENC_UNSIGNED_8 | MPG123_ENC_SIGNED_16))
CCLOG("ERROR (CocosDenshion): cannot set specified mpg123 format.");
}
~Mpg123Decoder()
{
mpg123_delete(handle);
}
};
#endif
#ifndef DISABLE_VORBIS
class VorbisDecoder : public OpenALDecoder
{
class OggRaii
{
public:
OggVorbis_File file;
~OggRaii() { ov_clear(&file); }
};
public:
bool decode(OpenALFile &file, ALuint &result)
{
OggRaii ogg;
int status = ov_test(file.file, &ogg.file, 0, 0);
if (status != 0) {
ov_clear(&ogg.file);
return false;
}
status = ov_test_open(&ogg.file);
if (status != 0) {
fprintf(stderr, "Could not open OGG file '%s'\n", file.debugName.c_str());
return false;
}
// As vorbis documentation says, we should not fclose() file
// after successful opening by vorbis functions.
file.file = NULL;
vorbis_info *info = ov_info(&ogg.file, -1);
ALenum format = (info->channels == 1) ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16;
DataRaii pcm;
pcm.size = ov_pcm_total(&ogg.file, -1) * info->channels * 2;
pcm.data = new char[pcm.size];
size_t size = 0;
int section = 0;
while (size < pcm.size) {
status = ov_read(&ogg.file, pcm.data + size, pcm.size - size, 0, 2, 1, &section);
if (status > 0) {
size += status;
} else if (status < 0) {
fprintf(stderr, "OGG file decoding stopped, file '%s'\n", file.debugName.c_str());
return false;
} else {
break;
}
}
if (size == 0) {
fprintf(stderr, "Unable to read OGG data from '%s'\n", file.debugName.c_str());
return false;
}
return initALBuffer(result, format, pcm.data, pcm.size, info->rate);
}
bool acceptsFormat(Format format) const
{
return Vorbis == format;
}
};
#endif
#if CC_TARGET_PLATFORM == CC_PLATFORM_TIZEN
class TizenDecoder : public OpenALDecoder
{
public:
static TizenDecoder *create(Format format)
{
TizenDecoder *decoder = new TizenDecoder(format);
if (decoder && !decoder->init()) {
delete decoder;
decoder = NULL;
}
return decoder;
}
bool decode(OpenALFile &file, ALuint &result)
{
if (!file.mapToMemory())
return false;
ByteBuffer inputBuffer;
inputBuffer.Construct(/*capacity*/ file.fileSize);
inputBuffer.SetArray((const byte*)file.mappedFile, 0, file.fileSize);
inputBuffer.Flip();
ByteBuffer pcm;
pcm.Construct(/*capacity*/ 2 * file.fileSize);
AudioSampleType sampleType = AUDIO_TYPE_NONE;
AudioChannelType channelType = AUDIO_CHANNEL_TYPE_NONE;
int sampleRate = 0;
if (E_SUCCESS != _decoder.Probe(inputBuffer, sampleType, channelType, sampleRate))
return false;
while (inputBuffer.GetRemaining()) {
auto ret = _decoder.Decode(inputBuffer, pcm);
if (ret == E_OUT_OF_MEMORY) {
pcm.ExpandCapacity(2 * pcm.GetCapacity());
} else if (IsFailed(ret)) {
AppLogTag("CocosDenshion(TizenDecoder)", "failed to decode file '%s', supported format is %s.", file.debugName.c_str(), getCodecName());
return false;
}
}
return initALBuffer(result, getALFormat(sampleType, channelType),
pcm.GetPointer(), pcm.GetPosition(), sampleRate);
}
bool acceptsFormat(Format format) const
{
return _format == format;
}
private:
TizenDecoder(Format format)
: _format(format)
{
}
bool init()
{
HashMap option;
option.Construct();
option.Add(*(new Integer(MEDIA_PROPERTY_AUDIO_CHANNEL_TYPE)), *(new Integer(AUDIO_CHANNEL_TYPE_NONE)));
option.Add(*(new Integer(MEDIA_PROPERTY_AUDIO_SAMPLE_RATE)), *(new Integer(44100)));
result r = _decoder.Construct(getCodecType());
if (IsFailed(r))
return false;
else
AppLogTag("CocosDenshion", "Tizen device supports audio format %s.", getCodecName());
return true;
}
ALenum getALFormat(AudioSampleType sampleType, AudioChannelType channelType)
{
if (sampleType == AUDIO_TYPE_PCM_U8) {
if (channelType == AUDIO_CHANNEL_TYPE_MONO)
return AL_FORMAT_MONO8;
return AL_FORMAT_STEREO8;
}
if (sampleType == AUDIO_TYPE_PCM_S16_LE) {
if (channelType == AUDIO_CHANNEL_TYPE_MONO)
return AL_FORMAT_MONO16;
return AL_FORMAT_STEREO16;
}
AppLogTag("CocosDenshion(TizenDecoder)", "unsuppored sampleType=%d.", sampleType, channelType);
return AL_NONE;
}
CodecType getCodecType() const
{
switch (_format) {
case Mp3:
return CODEC_MP3;
case Vorbis:
return CODEC_VORBIS;
case Flac:
return CODEC_FLAC;
case Midi:
return CODEC_MIDI;
case Aac:
return CODEC_AAC;
default:
break;
}
return CODEC_UNKNOWN;
}
const char *getCodecName() const
{
switch (_format) {
case Mp3:
return "mp3";
case Vorbis:
return "vorbis";
case Flac:
return "flac";
case Midi:
return "midi";
case Aac:
return "aac";
default:
break;
}
return "unknown";
}
Format _format;
AudioDecoder _decoder;
};
#endif
std::vector<OpenALDecoder *> OpenALDecoder::_decoders;
void OpenALDecoder::installDecoders()
{
#if CC_TARGET_PLATFORM == CC_PLATFORM_TIZEN
addDecoder(TizenDecoder::create(Mp3));
addDecoder(TizenDecoder::create(Vorbis));
addDecoder(TizenDecoder::create(Flac));
addDecoder(TizenDecoder::create(Midi));
addDecoder(TizenDecoder::create(Aac));
#else
#if !defined(DISABLE_VORBIS)
addDecoder(new VorbisDecoder());
#endif
#if defined(ENABLE_MPG123)
addDecoder(new Mpg123Decoder());
#endif
#endif
addDecoder(new AlutDecoder());
}
void OpenALDecoder::addDecoder(OpenALDecoder *decoder)
{
if (decoder)
_decoders.push_back(decoder);
}
bool OpenALDecoder::initALBuffer(ALuint &result, ALenum format,
const ALvoid *data, ALsizei size, ALsizei freq)
{
// Load audio data into a buffer.
alGenBuffers(1, &result);
if (checkALError("initALBuffer:alGenBuffers") != AL_NO_ERROR)
{
fprintf(stderr, "Couldn't generate OpenAL buffer\n");
return false;
}
alBufferData(result, format, data, size, freq);
checkALError("initALBuffer:alBufferData");
return true;
}
const std::vector<OpenALDecoder *> &OpenALDecoder::getDecoders()
{
return _decoders;
}
void OpenALFile::clear()
{
if (mappedFile) {
::munmap(mappedFile, fileSize);
mappedFile = 0;
fileSize = 0;
}
if (file) {
fclose(file);
file = 0;
}
}
bool OpenALFile::mapToMemory()
{
if (!file)
return false;
if (mappedFile != NULL)
return true;
const int fd = fileno(file);
struct stat fileStats;
if (0 != fstat(fd, &fileStats))
return false;
fileSize = fileStats.st_size;
mappedFile = ::mmap(NULL, fileSize, PROT_READ, MAP_PRIVATE, fd, 0);
if (mappedFile != MAP_FAILED)
return true;
mappedFile = NULL;
return false;
}
} // namespace CocosDenshion

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#ifndef COCOSDENSHION_OPENALLOADER_H
#define COCOSDENSHION_OPENALLOADER_H
#include <vector>
#include <string>
#include <stdio.h>
#ifdef OPENAL_PLAIN_INCLUDES
#include <al.h>
#else
#include <AL/al.h>
#endif
#if CC_TARGET_PLATFORM == CC_PLATFORM_TIZEN
#define DISABLE_VORBIS
#endif
namespace CocosDenshion {
struct OpenALFile
{
std::string debugName; ///< For logging.
FILE *file;
void *mappedFile; ///< Reserved by decoders.
size_t fileSize; ///< Reserved by decoders.
OpenALFile() : file(0), mappedFile(0), fileSize(0) {}
~OpenALFile() { clear(); }
/// Unmaps from memory and closes file.
void clear();
/// Performs memory map, if was not mapped before.
bool mapToMemory();
};
class OpenALDecoder
{
public:
enum Format {
Mp3 = 0,
Vorbis,
Wav,
Raw,
Flac,
Midi,
Aac
};
virtual ~OpenALDecoder() {}
/// Returns true if such format is supported and decoding was successful.
virtual bool decode(OpenALFile &file, ALuint &result) = 0;
virtual bool acceptsFormat(Format format) const = 0;
static const std::vector<OpenALDecoder *> &getDecoders();
static void installDecoders();
protected:
static void addDecoder(OpenALDecoder *decoder);
bool initALBuffer(ALuint &result, ALenum format,
const ALvoid* data, ALsizei size, ALsizei freq);
static std::vector<OpenALDecoder *> _decoders;
};
} // namespace CocosDenshion
#endif // COCOSDENSHION_OPENALLOADER_H

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/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "audio/include/SimpleAudioEngine.h"
#include <map>
#include <string>
#include <vector>
#include <stdio.h>
#include <unistd.h>
#ifdef OPENAL_PLAIN_INCLUDES
#include <al.h>
#include <alc.h>
#include <alut.h>
#else
#include <AL/al.h>
#include <AL/alc.h>
#include <AL/alut.h>
#endif
#include "audio/openal/OpenALDecoder.h"
#ifdef ENABLE_MPG123
#include <mpg123.h>
#endif
USING_NS_CC;
using namespace std;
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 {