Sound_Buffer::Sound_Buffer(const String &filename)
:
#ifndef DISABLE_AL
m_buffer(AL_NONE),
#endif
m_duration(float())
//, m_loader(0)
//, m_thread(0)
{
Sound &sr = get_Sound();
#ifndef DISABLE_AL
if(dynamic_cast<Sound_Renderer_AL *>(&sr.get_Renderer())) {
//m_loader = new Loader(filename);
//m_thread = new Thread(*m_loader);
std::pair<ALuint, float> loaded_ogg = load_ogg_vorbis(filename);
if(loaded_ogg.first == AL_NONE) {
std::cerr << "OpenAL error on '" << filename << "': " << Sound_Renderer_AL::errorString() << std::endl;
throw Sound_Buffer_Init_Failure();
}
m_buffer = loaded_ogg.first;
m_duration = loaded_ogg.second;
}
#endif
#ifdef ENABLE_SLES
init_SLES(filename);
#endif
}
pair<ALuint, float> Sound_Buffer::load_ogg_vorbis(const string &
#ifndef DISABLE_AL
filename
#endif
) {
#ifndef DISABLE_AL
/*** Open VorbisFile ***/
OggVorbis_File oggFile;
if(ov_fopen(const_cast<char *>(filename.c_str()), &oggFile))
return make_pair(AL_NONE, 0.0f);
/*** Get Information About the Audio File ***/
vorbis_info *pInfo = ov_info(&oggFile, -1);
const ALenum format = pInfo->channels == 2 ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16;
const ALsizei freq = pInfo->rate;
const ALsizei bytes_per_sample = format == AL_FORMAT_STEREO16 ? 4 : 2;
const ogg_int64_t num_samples = ov_pcm_total(&oggFile, -1);
const ogg_int64_t pcm_size = num_samples * bytes_per_sample;
const float duration = float(num_samples) / freq;
#ifndef NDEBUG
if(format == AL_FORMAT_STEREO16)
cerr << "WARNING: '" << filename << "' is stereo and will be unaffected by the OpenAL positional audio system." << endl;
#endif
/*** Load the Audio File ***/
int bytes = 0;
int buffer_size = int(pcm_size);
vector<char> buffer( static_cast<size_t>(buffer_size) );
for(char *begin = &buffer[0], *end = begin + pcm_size;
begin != end;
begin += bytes, buffer_size -= bytes) {
bytes = ov_read(&oggFile, begin, buffer_size, 0, 2, 1, 0);
if(!bytes) {
ov_clear(&oggFile);
throw Sound_Buffer_Init_Failure();
}
}
/*** Generate Audio Buffer ***/
ALuint bufferID = AL_NONE;
alGenBuffers(1, &bufferID);
alBufferData(bufferID, format, &buffer[0], static_cast<ALsizei>(buffer.size()), freq);
return make_pair(bufferID, duration);
#else
return make_pair(AL_NONE, 0.0f);
#endif
}
void Sound_Buffer::finish_loading() const {
delete m_thread;
m_thread = 0;
const int status = m_loader->status;
m_buffer = m_loader->m_buffer;
m_duration = m_loader->m_duration;
delete m_loader;
m_loader = 0;
if(status)
throw Sound_Buffer_Init_Failure();
}
Sound_Buffer::Sound_Buffer()
: m_buffer(AL_NONE),
m_loader(0),
m_thread(0)
{
get_Sound();
#ifndef DISABLE_AL
m_buffer = alutCreateBufferHelloWorld();
if(m_buffer == AL_NONE) {
cerr << "ALUT error on Hello World: " << alutGetErrorString(alutGetError()) << endl;
throw Sound_Buffer_Init_Failure();
}
#endif
}
void Sound_Buffer::init_SLES(const String &filename) {
if(dynamic_cast<Sound_Renderer_SLES *>(&get_Sound().get_Renderer())) {
// use asset manager to open asset by filename
AAsset* asset = AAssetManager_open(File_Ops::get_AAssetManager(), (filename + ".wav").c_str(), AASSET_MODE_UNKNOWN);
if(!asset)
throw Sound_Buffer_Init_Failure();
// open asset as file descriptor
off_t start, length;
int fd = AAsset_openFileDescriptor(asset, &start, &length);
assert(0 <= fd);
AAsset_close(asset);
// configure audio source
loc_fd = {SL_DATALOCATOR_ANDROIDFD, fd, start, length};
format_mime = {SL_DATAFORMAT_MIME, NULL, SL_CONTAINERTYPE_UNSPECIFIED};
audioSrc = {&loc_fd, &format_mime};
}
}
Sound_Buffer::Sound_Buffer()
: m_buffer(AL_NONE)
//, m_loader(0)
//, m_thread(0)
{
#ifndef DISABLE_AL
Sound &sr = get_Sound();
if(dynamic_cast<Sound_Renderer_AL *>(&sr.get_Renderer())) {
Sound_Renderer_AL::alGenBuffers()(1, &m_buffer);
if(m_buffer == AL_NONE) {
std::cerr << "OpenAL error on alGenBuffers: " << Sound_Renderer_AL::errorString() << std::endl;
throw Sound_Buffer_Init_Failure();
}
char buffer[64];
memset(buffer, 0, sizeof(buffer));
Sound_Renderer_AL::alBufferData()(m_buffer, AL_FORMAT_MONO16, buffer, sizeof(buffer), 22050);
}
#endif
}
std::pair<ALuint, float> Sound_Buffer::load_ogg_vorbis(const String &
#ifndef DISABLE_AL
filename
#endif
) {
#ifndef DISABLE_AL
/*** Open VorbisFile ***/
OggVorbis_File oggFile;
if(ov_fopen(const_cast<char *>((filename + ".ogg").c_str()), &oggFile))
return std::make_pair(AL_NONE, 0.0f);
/*** Get Information About the Audio File ***/
vorbis_info *pInfo = ov_info(&oggFile, -1);
const ALenum format = pInfo->channels == 2 ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16;
const ALsizei freq = ALsizei(pInfo->rate);
const ALsizei bytes_per_sample = format == AL_FORMAT_STEREO16 ? 4 : 2;
const ogg_int64_t num_samples = ov_pcm_total(&oggFile, -1);
const ogg_int64_t pcm_size = num_samples * bytes_per_sample;
const float duration = float(num_samples) / freq;
#ifndef NDEBUG
if(format == AL_FORMAT_STEREO16)
std::cerr << "WARNING: '" << filename << "' is stereo and will be unaffected by the OpenAL positional audio system." << std::endl;
#endif
/*** Load the Audio File ***/
long bytes = 0;
ogg_int64_t remaining = pcm_size;
if(pcm_size > std::numeric_limits<size_t>::max())
throw Sound_Buffer_Init_Failure();
std::vector<char> buffer(static_cast<size_t>(pcm_size));
for(char *begin = &buffer[0], *end = begin + pcm_size;
begin != end;
begin += bytes, remaining -= bytes)
{
int read_size = remaining > std::numeric_limits<int>::max() ? std::numeric_limits<int>::max() : int(remaining);
bytes = ov_read(&oggFile, begin, read_size, 0, 2, 1, 0);
if(bytes < 0) {
ov_clear(&oggFile);
throw Sound_Buffer_Init_Failure();
}
}
/*** Generate Audio Buffer ***/
ALuint bufferID = AL_NONE;
Sound_Renderer_AL::alGenBuffers()(1, &bufferID);
Sound_Renderer_AL::alBufferData()(bufferID, format, &buffer[0], static_cast<ALsizei>(buffer.size()), freq);
return std::make_pair(bufferID, duration);
#else
return std::make_pair(AL_NONE, 0.0f);
#endif
}
