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89 lines
1.9 KiB
C++
89 lines
1.9 KiB
C++
#include "musicsfml.h"
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MusicSFML::MusicSFML()
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: _sfml_music_offset(0), _previous_frame_offset(0), _absolute_offset(0)
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{
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}
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bool MusicSFML::open(const std::string &filepath)
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{
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return _music.openFromFile(filepath);
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}
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void MusicSFML::play()
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{
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_music.play();
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_sfml_music_offset = _offset_interpolator.restart().asMicroseconds();
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}
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void MusicSFML::pause()
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{
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_music.pause();
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}
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void MusicSFML::stop()
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{
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_music.stop();
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}
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bool MusicSFML::isPlaying() const
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{
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return _music.getStatus() == sf::Music::Playing;
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}
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void MusicSFML::setVolume(float volume)
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{
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_music.setVolume(volume);
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}
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void MusicSFML::setOffset(const kku::microsec &offset)
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{
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//_previous_frame_offset += (offset - _absolute_offset);
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_music.setPlayingOffset(sf::microseconds(offset));
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}
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kku::microsec MusicSFML::fetchOffset()
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{
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if (_music.getStatus() != sf::Music::Status::Playing)
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return _absolute_offset;
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const auto interpolator_timestamp =
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_offset_interpolator.getElapsedTime().asMicroseconds();
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const auto sfml_new_offset = _music.getPlayingOffset().asMicroseconds();
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_absolute_offset += (interpolator_timestamp - _previous_frame_offset);
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_previous_frame_offset = interpolator_timestamp;
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if (sfml_new_offset != _sfml_music_offset)
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{
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_absolute_offset = ((_absolute_offset + sfml_new_offset) / 2);
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_sfml_music_offset = sfml_new_offset;
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}
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return _absolute_offset;
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}
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void MusicSFML::moveOffset(const kku::microsec &delta)
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{
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const auto offset = fetchOffset();
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const auto result = offset + delta;
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if (result < 0)
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{
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setOffset(0);
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}
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else if (result > getDuration())
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{
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setOffset(_music.getDuration().asMicroseconds());
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pause();
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}
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else
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{
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setOffset(result);
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}
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}
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kku::microsec MusicSFML::getDuration() const
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{
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return _music.getDuration().asMicroseconds();
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}
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