summaryrefslogtreecommitdiffstats
path: root/raul/TimeSlice.hpp
diff options
context:
space:
mode:
authorDavid Robillard <d@drobilla.net>2020-11-12 01:11:11 +0100
committerDavid Robillard <d@drobilla.net>2020-11-12 01:47:40 +0100
commitbf9190ef628c1aa04791af1bd7cd4905e9c24658 (patch)
tree56114c93a8ec689cd15497059958dad03a1ee2ce /raul/TimeSlice.hpp
parent496e70e420811c7d744a8bcc44a2ac1b51b676b5 (diff)
downloadraul-bf9190ef628c1aa04791af1bd7cd4905e9c24658.tar.gz
raul-bf9190ef628c1aa04791af1bd7cd4905e9c24658.tar.bz2
raul-bf9190ef628c1aa04791af1bd7cd4905e9c24658.zip
Move includes to a conventional include directory
Diffstat (limited to 'raul/TimeSlice.hpp')
-rw-r--r--raul/TimeSlice.hpp157
1 files changed, 0 insertions, 157 deletions
diff --git a/raul/TimeSlice.hpp b/raul/TimeSlice.hpp
deleted file mode 100644
index 7758602..0000000
--- a/raul/TimeSlice.hpp
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- This file is part of Raul.
- Copyright 2007-2012 David Robillard <http://drobilla.net>
-
- Raul is free software: you can redistribute it and/or modify it under the
- terms of the GNU General Public License as published by the Free Software
- Foundation, either version 3 of the License, or any later version.
-
- Raul 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. See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with Raul. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef RAUL_TIMESLICE_HPP
-#define RAUL_TIMESLICE_HPP
-
-#include "raul/Noncopyable.hpp"
-#include "raul/TimeStamp.hpp"
-
-#include <cassert>
-#include <cmath>
-
-namespace Raul {
-
-/* FIXME: all the conversion here is wrong now */
-
-/** A duration of time, with conversion between tick time and beat time.
- *
- * This is a slice along a single timeline (ie t=0 in ticks and t=0 in beats
- * are equal). Relation to an external time base (e.g. Jack frame time) is
- * represented by frame_offset (the idea is that this holds all the information
- * necessary for passing to run() methods so they know the current state of
- * things WRT time).
- *
- * This class handles conversion between two units of time: musical
- * (beat) time, and real (tick) time. Real time is discrete, the smallest
- * unit of time is the 'tick' (usually audio frames or MIDI ticks). Beat time
- * is stored as a double (to be independent of any rates or timer precision).
- *
- * This caches as many values as possible to make calls less expensive, pass it
- * around by reference, not value.
- *
- * \ingroup raul
- */
-class TimeSlice : public Noncopyable {
-public:
- TimeSlice(uint32_t rate, uint32_t ppqn, double bpm)
- : _tick_rate(rate)
- , _beat_rate(60.0/bpm)
- , _start_ticks(Raul::TimeUnit(Raul::TimeUnit::FRAMES, rate), 0, 0)
- , _length_ticks(TimeUnit(TimeUnit::FRAMES, rate), 0, 0)
- , _start_beats(TimeUnit(TimeUnit::BEATS, ppqn), 0, 0)
- , _length_beats(TimeUnit(TimeUnit::BEATS, ppqn), 0, 0)
- , _offset_ticks(TimeUnit(TimeUnit::FRAMES, rate), 0, 0)
- {}
-
- /** Set the start and length of the slice.
- *
- * Note that external offset is not affected by this, don't forget to reset
- * the offset each cycle!
- */
- void set_slice(TimeStamp start, TimeDuration length) {
- assert(start.unit() == ticks_unit());
- assert(length.unit() == ticks_unit());
- _start_ticks = start;
- _length_ticks = length;
- update_beat_time();
- }
-
- void set_length(TimeDuration length) {
- assert(length.unit() == ticks_unit());
- _length_ticks = length;
- _length_beats = ticks_to_beats(_length_ticks);
- }
-
- bool contains(TimeStamp time) const {
- return (time >= start_ticks() && time < start_ticks() + length_ticks());
- }
-
- double tick_rate() const { return _tick_rate; }
- double beat_rate() const { return _beat_rate; }
- double bpm() const { return 60/_beat_rate; }
-
- void set_tick_rate(double tick_rate) {
- _tick_rate = tick_rate;
- update_beat_time();
- }
-
- void set_bpm(double bpm) {
- _beat_rate = 60.0/bpm;
- update_beat_time();
- }
-
- inline TimeStamp beats_to_seconds(TimeStamp beats) const {
- return TimeStamp(real_unit(), beats.to_double() * 1/_beat_rate);
- }
-
- inline TimeStamp beats_to_ticks(TimeStamp beats) const {
- return TimeStamp(ticks_unit(), beats.to_double() * _beat_rate * _tick_rate);
- }
-
- inline TimeStamp ticks_to_seconds(TimeStamp ticks) const {
- return {real_unit(), ticks.ticks() * 1/_tick_rate};
- }
-
- inline TimeStamp ticks_to_beats(TimeStamp ticks) const {
- return {beats_unit(), ticks.ticks() * 1/_tick_rate * _beat_rate};
- }
-
- /** Start of current sub-cycle in ticks */
- inline TimeStamp start_ticks() const { return _start_ticks; }
-
- /** Length of current sub-cycle in ticks */
- inline TimeDuration length_ticks() const { return _length_ticks; }
-
- /** Start of current sub-cycle in beats */
- inline TimeStamp start_beats() const { return _start_beats; }
-
- /** Length of current sub-cycle in beats */
- inline TimeDuration length_beats() const { return _length_beats; }
-
- /** Set the offset between real-time and timeslice-time. */
- inline void set_offset(TimeDuration offset) { _offset_ticks = offset; }
-
- /** Offset relative to external (e.g Jack) time */
- inline TimeDuration offset_ticks() const { return _offset_ticks; }
-
- inline TimeUnit beats_unit() const { return _start_beats.unit(); }
- inline TimeUnit ticks_unit() const { return _start_ticks.unit(); }
-
- static inline TimeUnit real_unit() { return {TimeUnit::SECONDS, 0}; }
-
-private:
- inline void update_beat_time() {
- _start_beats = ticks_to_beats(_start_ticks);
- _length_beats = ticks_to_beats(_length_ticks);
- }
-
- // Rate/Tempo
- double _tick_rate; ///< Tick rate in Hz (e.g. sample rate)
- double _beat_rate; ///< Beat rate in Hz
-
- // Current time
- TimeStamp _start_ticks; ///< Current window start in ticks
- TimeDuration _length_ticks; ///< Current window length in ticks
- TimeStamp _start_beats; ///< Current window start in beats
- TimeDuration _length_beats; ///< Current window length in beats
-
- TimeDuration _offset_ticks; ///< Offset to global time
-};
-
-} // namespace Raul
-
-#endif // RAUL_TIMESLICE_HPP