138 lines
3.9 KiB
C++
138 lines
3.9 KiB
C++
/**
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* @author Gary P. SCAVONE
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*
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* @copyright 2001-2013 Gary P. Scavone, all right reserved
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*
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* @license like MIT (see license file)
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*/
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#include <airtaudio/Interface.h>
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#include <airtaudio/debug.h>
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#include <iostream>
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std::vector<airtaudio::api::type> airtaudio::Interface::getCompiledApi(void) {
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std::vector<airtaudio::api::type> apis;
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// The order here will control the order of RtAudio's API search in
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// the constructor.
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for (auto &it : m_apiAvaillable) {
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apis.push_back(it.first);
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}
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return apis;
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}
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void airtaudio::Interface::openRtApi(airtaudio::api::type _api) {
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if (m_rtapi != NULL) {
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delete m_rtapi;
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m_rtapi = NULL;
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}
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for (auto &it :m_apiAvaillable) {
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if (_api == it.first) {
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m_rtapi = it.second();
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if (m_rtapi != NULL) {
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return;
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}
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}
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}
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// TODO : An eror occured ...
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}
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airtaudio::Interface::Interface(void) :
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m_rtapi(NULL) {
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#if defined(__UNIX_JACK__)
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addInterface(airtaudio::api::UNIX_JACK, airtaudio::api::Jack::Create);
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#endif
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#if defined(__LINUX_ALSA__)
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addInterface(airtaudio::api::LINUX_ALSA, airtaudio::api::Alsa::Create);
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#endif
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#if defined(__LINUX_PULSE__)
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addInterface(airtaudio::api::LINUX_PULSE, airtaudio::api::Pulse::Create);
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#endif
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#if defined(__LINUX_OSS__)
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addInterface(airtaudio::api::LINUX_OSS, airtaudio::api::Oss::Create);
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#endif
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#if defined(__WINDOWS_ASIO__)
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addInterface(airtaudio::api::WINDOWS_ASIO, airtaudio::api::Asio::Create);
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#endif
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#if defined(__WINDOWS_DS__)
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addInterface(airtaudio::api::WINDOWS_DS, airtaudio::api::Ds::Create);
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#endif
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#if defined(__MACOSX_CORE__)
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addInterface(airtaudio::api::MACOSX_CORE, airtaudio::api::Core::Create);
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#endif
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#if defined(__AIRTAUDIO_DUMMY__)
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addInterface(airtaudio::api::RTAUDIO_DUMMY, airtaudio::api::Dummy::Create);
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#endif
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}
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void airtaudio::Interface::addInterface(airtaudio::api::type _api, Api* (*_callbackCreate)(void)) {
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m_apiAvaillable.push_back(std::pair<airtaudio::api::type, Api* (*)(void)>(_api, _callbackCreate));
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}
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enum airtaudio::errorType airtaudio::Interface::instanciate(airtaudio::api::type _api) {
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if (m_rtapi != NULL) {
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std::cerr << "\nInterface already started ...!\n" << std::endl;
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return airtaudio::errorNone;
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}
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if (_api != airtaudio::api::UNSPECIFIED) {
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// Attempt to open the specified API.
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openRtApi(_api);
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if (m_rtapi != NULL) {
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return airtaudio::errorNone;
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}
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// No compiled support for specified API value. Issue a debug
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// warning and continue as if no API was specified.
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std::cerr << "\nRtAudio: no compiled support for specified API argument!\n" << std::endl;
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return airtaudio::errorFail;
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}
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// Iterate through the compiled APIs and return as soon as we find
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// one with at least one device or we reach the end of the list.
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std::vector<airtaudio::api::type> apis = getCompiledApi();
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for (auto &it : apis) {
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openRtApi(it);
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if (m_rtapi->getDeviceCount() != 0) {
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break;
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}
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}
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if (m_rtapi != NULL) {
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return airtaudio::errorNone;
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}
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std::cout << "\nRtAudio: no compiled API support found ... critical error!!\n\n";
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return airtaudio::errorFail;
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}
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airtaudio::Interface::~Interface(void) {
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if (m_rtapi != NULL) {
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delete m_rtapi;
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m_rtapi = NULL;
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}
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}
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enum airtaudio::errorType airtaudio::Interface::openStream(
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airtaudio::StreamParameters* _outputParameters,
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airtaudio::StreamParameters* _inputParameters,
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airtaudio::format _format,
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uint32_t _sampleRate,
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uint32_t* _bufferFrames,
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airtaudio::AirTAudioCallback _callback,
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void* _userData,
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airtaudio::StreamOptions* _options) {
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if (m_rtapi == NULL) {
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return airtaudio::errorInputNull;
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}
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return m_rtapi->openStream(_outputParameters,
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_inputParameters,
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_format,
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_sampleRate,
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_bufferFrames,
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_callback,
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_userData,
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_options);
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}
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