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#include "uscxml/Common.h"
#include "SpatialAudio.h"
#include "uscxml/Interpreter.h"
#include "uscxml/URL.h"
#include <glog/logging.h>
#ifdef _WIN32
#define _USE_MATH_DEFINES
#endif
#include <math.h>
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool connect(pluma::Host& host) {
host.add( new SpatialAudioProvider() );
return true;
}
#endif
SpatialAudio::SpatialAudio() {
_audioDevOpen = false;
_audioDev = NULL;
_audioDevIndex = -1;
_pos = new float[3];
_pos[0] = _pos[1] = _pos[2] = 0.0;
_listener = new float[3];
_listener[0] = _listener[1] = _listener[2] = 0.0;
}
SpatialAudio::~SpatialAudio() {
};
Invoker* SpatialAudio::create(Interpreter* interpreter) {
SpatialAudio* invoker = new SpatialAudio();
invoker->_interpreter = interpreter;
return invoker;
}
Data SpatialAudio::getDataModelVariables() {
Data data;
// data.compound["foo"] = Data("32");
return data;
}
void SpatialAudio::send(SendRequest& req) {
if (!_audioDevOpen) {
_audioDev = miles_audio_device_open(_audioDevIndex, 0, 22050, 2, 1, 0);
if (_audioDev != NULL) {
_audioDevOpen = true;
float rolloffFactor = 0.2;
miles_audio_device_control(_audioDev, MILES_AUDIO_DEVICE_CTRL_SET_ROLLOFF_FACTOR, &rolloffFactor);
}
}
if (boost::iequals(req.name, "play")) {
if (_audioDevOpen) {
getPosFromParams(req.params, _pos);
// std::cout << "Source: ";
// for (int i = 0; i < 3; i++) {
// std::cout << _pos[i] << " ";
// }
// std::cout << std::endl;
miles_audio_device_control(_audioDev, MILES_AUDIO_DEVICE_CTRL_SET_POSITION, _pos);
char* buffer = (char*)malloc(_audioDev->chunk_size);
// skip wav header
_dataStream.seekg(44);
while(_dataStream.readsome(buffer, _audioDev->chunk_size) != 0) {
miles_audio_device_write(_audioDev, buffer, _audioDev->chunk_size);
}
free(buffer);
}
} else if (boost::iequals(req.name, "move.listener")) {
if (_audioDevOpen) {
getPosFromParams(req.params, _listener);
std::cout << "Listener: ";
for (int i = 0; i < 3; i++) {
std::cout << _listener[i] << " ";
}
std::cout << std::endl;
miles_audio_device_control(_audioDev, MILES_AUDIO_DEVICE_CTRL_SET_LISTENER_POS, _listener);
}
}
}
void SpatialAudio::cancel(const std::string sendId) {
assert(false);
}
void SpatialAudio::sendToParent(SendRequest& req) {
req.invokeid = _invokeId;
assert(false);
}
void SpatialAudio::invoke(InvokeRequest& req) {
_invokeId = req.invokeid;
if (req.src.length() > 0) {
Arabica::io::URI url(req.src);
if (!_interpreter->makeAbsolute(url)) {
LOG(ERROR) << "Source attribute for audio invoker has relative URI " << req.src << " with no base URI set for interpreter";
return;
}
URL scriptUrl(url.as_string());
_dataStream << scriptUrl;
}
getPosFromParams(req.params, _pos);
struct miles_audio_device_description *devices;
int ndevs;
ndevs = miles_audio_device_get_supported_devices(&devices);
for (int i = 0; i < ndevs; i++) {
if ((devices[i].capabilities & MILES_AUDIO_DEVICE_CAPABILITY_SPATIAL) &&
(devices[i].capabilities & MILES_AUDIO_DEVICE_CAPABILITY_OUTPUT)) {
_audioDevIndex = i;
break;
}
}
}
void SpatialAudio::getPosFromParams(std::map<std::string, std::list<std::string> >& params, float* position) {
// vector explicitly given
try {
if (params.find("x") != params.end())
position[0] = boost::lexical_cast<float>(params["x"].front());
if (params.find("y") != params.end())
position[1] = boost::lexical_cast<float>(params["y"].front());
if (params.find("z") != params.end())
position[2] = boost::lexical_cast<float>(params["z"].front());
} catch (boost::bad_lexical_cast& e) {
LOG(ERROR) << "Cannot interpret x, y or z as float value in params: " << e.what();
}
try {
// right is an alias for x
if (params.find("right") != params.end())
position[0] = boost::lexical_cast<float>(params["right"].front());
// height is an alias for y
if (params.find("height") != params.end())
position[1] = boost::lexical_cast<float>(params["height"].front());
// front is an alias for z
if (params.find("front") != params.end())
position[2] = boost::lexical_cast<float>(params["front"].front());
} catch (boost::bad_lexical_cast& e) {
LOG(ERROR) << "Cannot interpret right, height or front as float value in params: " << e.what();
}
// do we have a position on a circle?
try {
if (params.find("circle") != params.end()) {
float rad = posToRadian(params["circle"].front());
position[0] = cosf(rad);
position[2] = -1 * sinf(rad); // z axis increases to front
}
} catch (boost::bad_lexical_cast& e) {
LOG(ERROR) << "Cannot interpret circle as float value in params: " << e.what();
}
// std::cout << _pos[0] << ":" << _pos[1] << ":" << _pos[2] << std::endl;
}
float SpatialAudio::posToRadian(std::string& position) {
boost::trim(position);
float rad = 0;
if (position.size() > 3 && boost::iequals("deg", position.substr(position.length() - 3, 3))) {
rad = boost::lexical_cast<float>(position.substr(0, position.size() - 3));
rad = fmodf(rad, 360); // into range [0-360]
rad /= 180; // into range [0-2]
rad *= M_PI; // into range [0-2PI]
rad -= M_PI_2; // 0 to top;
rad *= -1; // make clockwise
rad += 2 * M_PI; // make positive
} else if (position.size() > 3 && boost::iequals("rad", position.substr(position.length() - 3, 3))) {
rad = boost::lexical_cast<float>(position.substr(0, position.size() - 3));
rad = fmodf(rad, M_PI * 2); // into range [0-2*PI]
} else {
LOG(ERROR) << "Cannot make sense of position value " << position << ": does not end in 'deg', 'rad'";
}
return rad;
}
}
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