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#include "xe_sound_device.hpp"
#include <stdexcept>
#include <iostream>
#include <cstring>
namespace xe {
XeSoundDevice::XeSoundDevice() {
ALboolean enumeration;
enumeration = alcIsExtensionPresent(NULL, "ALC_ENUMERATION_EXT");
if (enumeration == AL_FALSE) {
fprintf(stderr, "enumeration extension not available\n");
listAudioDevices(alcGetString(NULL, ALC_DEVICE_SPECIFIER));
}
listAudioDevices(alcGetString(NULL, ALC_DEVICE_SPECIFIER));
const ALCchar* name = alcGetString(NULL, ALC_DEFAULT_DEVICE_SPECIFIER);
device = alcOpenDevice(name);
if (!device) {
std::runtime_error("failed to get sound device");
}
std::cout << "Audio Device: " << alcGetString(device, ALC_DEVICE_SPECIFIER) << "\n";
context = alcCreateContext(device, NULL);
if(!alcMakeContextCurrent(context)) {
std::runtime_error("failed to make sound context current");
}
alListener3f(AL_POSITION, 0.f, 0.f, 0.f);
alListener3f(AL_VELOCITY, 0.f, 0.f, 0.f);
ALfloat frontAndUpVectors[] = {
/* front*/1.f, 0.f, 0.f,
/* up */ 0.f, 1.f, 0.f
};
alListenerfv(AL_ORIENTATION, frontAndUpVectors);
}
void XeSoundDevice::listAudioDevices(const ALCchar* devices) {
const ALCchar *device = devices, *next = devices + 1;
size_t len = 0;
fprintf(stdout, "Devices list: ");
while (device && *device != '\0' && next && *next != '\0') {
fprintf(stdout, "%s, ", device);
len = strlen(device);
device += (len + 1);
next += (len + 2);
}
std::cout << "\n";
}
XeSoundDevice::~XeSoundDevice() {
alcMakeContextCurrent(nullptr);
alcDestroyContext(context);
alcCloseDevice(device);
}
}
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