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/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#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 pluginConnect(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;
_maxPos = new float[3];
_maxPos[0] = _maxPos[1] = _maxPos[2] = 1.0;
miles_init();
}
SpatialAudio::~SpatialAudio() {
};
boost::shared_ptr<InvokerImpl> SpatialAudio::create(InterpreterImpl* interpreter) {
boost::shared_ptr<SpatialAudio> invoker = boost::shared_ptr<SpatialAudio>(new SpatialAudio());
invoker->_interpreter = interpreter;
return invoker;
}
Data SpatialAudio::getDataModelVariables() {
Data data;
// data.compound["foo"] = Data("32");
return data;
}
void SpatialAudio::send(const SendRequest& req) {
if (!_audioDevOpen) {
_audioDev = miles_audio_device_open(MILES_AUDIO_IO_OPENAL, _audioDevIndex, 0, 22050, 2, 1, 1024, false);
if (_audioDev != NULL) {
_audioDevOpen = true;
// float rolloffFactor = 1.0;
// miles_audio_device_control(MILES_AUDIO_IO_OPENAL, _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(MILES_AUDIO_IO_OPENAL, _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) {
int written = 0;
while(written < _audioDev->chunk_size) {
written += miles_audio_device_write(MILES_AUDIO_IO_OPENAL, _audioDev, buffer + written, _audioDev->chunk_size - written);
tthread::this_thread::sleep_for(tthread::chrono::milliseconds(10));
}
}
_dataStream.seekg(0);
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(MILES_AUDIO_IO_OPENAL, _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(const InvokeRequest& req) {
_invokeId = req.invokeid;
if (req.src.length() > 0) {
URL scriptUrl(req.src);
if (!scriptUrl.toAbsolute(_interpreter->getBaseURI())) {
LOG(ERROR) << "Source attribute for audio invoker has relative URI " << req.src << " with no base URI set for interpreter";
return;
}
_dataStream << scriptUrl;
}
getPosFromParams(req.params, _pos);
std::multimap<std::string, Data>::const_iterator paramIter = req.params.begin();
while(paramIter != req.params.end()) {
if (boost::iequals(paramIter->first, "maxX"))
_maxPos[0] = strTo<float>(paramIter->second);
if (boost::iequals(paramIter->first, "maxY"))
_maxPos[1] = strTo<float>(paramIter->second);
if (boost::iequals(paramIter->first, "maxZ"))
_maxPos[2] = strTo<float>(paramIter->second);
paramIter++;
}
struct miles_audio_device_description *devices;
int ndevs;
ndevs = miles_audio_device_get_supported_devices(MILES_AUDIO_IO_OPENAL, &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(const std::multimap<std::string, Data>& params, float* position) {
// vector explicitly given
try {
if (params.find("x") != params.end())
position[0] = boost::lexical_cast<float>(params.find("x")->second);
if (params.find("y") != params.end())
position[1] = boost::lexical_cast<float>(params.find("y")->second);
if (params.find("z") != params.end())
position[2] = boost::lexical_cast<float>(params.find("z")->second);
} 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.find("right")->second);
// height is an alias for y
if (params.find("height") != params.end())
position[1] = boost::lexical_cast<float>(params.find("height")->second);
// front is an alias for z
if (params.find("front") != params.end())
position[2] = boost::lexical_cast<float>(params.find("front")->second);
} 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.find("circle")->second);
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();
}
position[0] = position[0] / _maxPos[0];
position[1] = position[1] / _maxPos[1];
position[2] = position[2] / _maxPos[2];
// std::cout << _pos[0] << ":" << _pos[1] << ":" << _pos[2] << std::endl;
}
float SpatialAudio::posToRadian(const std::string& pos) {
std::string trimmedPos = boost::trim_copy(pos);
float rad = 0;
if (trimmedPos.size() > 3 && boost::iequals("deg", trimmedPos.substr(trimmedPos.length() - 3, 3))) {
rad = boost::lexical_cast<float>(trimmedPos.substr(0, trimmedPos.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 (trimmedPos.size() > 3 && boost::iequals("rad", trimmedPos.substr(trimmedPos.length() - 3, 3))) {
rad = boost::lexical_cast<float>(trimmedPos.substr(0, trimmedPos.size() - 3));
rad = fmodf(rad, M_PI * 2); // into range [0-2*PI]
} else {
LOG(ERROR) << "Cannot make sense of position value " << trimmedPos << ": does not end in 'deg', 'rad'";
}
return rad;
}
}
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