bool SoundBuffer::update(unsigned int channelCount, unsigned int sampleRate)
{
// Check parameters
if (!channelCount || !sampleRate || m_samples.empty())
return false;
// Check if the format is valid
if (channelCount > 2){
err() << "Failed to load sound buffer (unsupported number of channels: " << channelCount << ")" << std::endl;
return false;
}
m_channelCount = channelCount;
m_sampleRate = sampleRate;
// First make a copy of the list of sounds so we can reattach later
SoundList sounds(m_sounds);
// Detach the buffer from the sounds that use it (to avoid OpenAL errors)
for (SoundList::const_iterator it = sounds.begin(); it != sounds.end(); ++it)
(*it)->resetBuffer();
// Compute the duration
m_duration = seconds(static_cast<float>(m_samples.size()) / sampleRate / channelCount);
// Now reattach the buffer to the sounds that use it
for (SoundList::const_iterator it = sounds.begin(); it != sounds.end(); ++it)
(*it)->setBuffer(*this);
return true;
}
void compile(const char* path, CompileOptions& opts)
{
static const uint32_t VERSION = 1;
Buffer buf = opts.read(path);
JSONParser json(array::begin(buf));
JSONElement root = json.root();
Array<LevelUnit> units(default_allocator());
Array<LevelSound> sounds(default_allocator());
{
JSONElement sounds_arr = root.key("sounds");
const uint32_t size = sounds_arr.size();
for (uint32_t i = 0; i < size; i++)
{
JSONElement e = sounds_arr[i];
LevelSound ls;
ls.name = e.key("name").to_resource_id("sound").name;
ls.position = e.key("position").to_vector3();
ls.volume = e.key("volume").to_float();
ls.range = e.key("range").to_float();
ls.loop = e.key("loop").to_bool();
array::push_back(sounds, ls);
}
}
{
JSONElement units_arr = root.key("units");
const uint32_t size = units_arr.size();
for (uint32_t i = 0; i < size; i++)
{
JSONElement e = units_arr[i];
LevelUnit lu;
lu.name = e.key("name").to_resource_id("unit").name;
lu.position = e.key("position").to_vector3();
lu.rotation = e.key("rotation").to_quaternion();
array::push_back(units, lu);
}
}
LevelResource lr;
lr.version = VERSION;
lr.num_units = array::size(units);
lr.num_sounds = array::size(sounds);
uint32_t offt = sizeof(LevelResource);
lr.units_offset = offt; offt += sizeof(LevelUnit) * lr.num_units;
lr.sounds_offset = offt;
opts._bw & lr
& units
& sounds;
}
bool SoundBuffer::update(unsigned int channelCount, unsigned int sampleRate)
{
// Check parameters
if (!channelCount || !sampleRate || m_samples.empty())
return false;
// Find the good format according to the number of channels
ALenum format = priv::AudioDevice::getFormatFromChannelCount(channelCount);
// Check if the format is valid
if (format == 0)
{
err() << "Failed to load sound buffer (unsupported number of channels: " << channelCount << ")" << std::endl;
return false;
}
// First make a copy of the list of sounds so we can reattach later
SoundList sounds(m_sounds);
// Detach the buffer from the sounds that use it (to avoid OpenAL errors)
for (SoundList::const_iterator it = sounds.begin(); it != sounds.end(); ++it)
(*it)->resetBuffer();
// Fill the buffer
ALsizei size = static_cast<ALsizei>(m_samples.size()) * sizeof(Int16);
alCheck(alBufferData(m_buffer, format, &m_samples[0], size, sampleRate));
// Compute the duration
m_duration = seconds(static_cast<float>(m_samples.size()) / sampleRate / channelCount);
// Now reattach the buffer to the sounds that use it
for (SoundList::const_iterator it = sounds.begin(); it != sounds.end(); ++it)
(*it)->setBuffer(*this);
return true;
}
