X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Ftempo.cc;h=ce2d311d391c475aa407395e29e27b119cd72c04;hb=639dff3a7c776d5da7b481beb627afab106b6513;hp=bd23e02ebdcae550fa18242f2592ce4baf1dfce8;hpb=5aafb0b53486a92a4e966510388d9c7cfbb799fb;p=ardour.git diff --git a/libs/ardour/tempo.cc b/libs/ardour/tempo.cc index bd23e02ebd..ce2d311d39 100644 --- a/libs/ardour/tempo.cc +++ b/libs/ardour/tempo.cc @@ -27,11 +27,13 @@ #include "pbd/enumwriter.h" #include "pbd/xml++.h" -#include "evoral/Beats.hpp" + +#include "temporal/beats.h" #include "ardour/debug.h" #include "ardour/lmath.h" #include "ardour/tempo.h" +#include "ardour/types_convert.h" #include "pbd/i18n.h" #include @@ -45,24 +47,52 @@ using Timecode::BBT_Time; /* _default tempo is 4/4 qtr=120 */ Meter TempoMap::_default_meter (4.0, 4.0); -Tempo TempoMap::_default_tempo (120.0); +Tempo TempoMap::_default_tempo (120.0, 4.0, 120.0); -framepos_t -MetricSection::frame_at_minute (const double& time) const +samplepos_t +MetricSection::sample_at_minute (const double& time) const { - return (framepos_t) floor ((time * 60.0 * _sample_rate) + 0.5); + return (samplepos_t) floor ((time * 60.0 * _sample_rate) + 0.5); } double -MetricSection::minute_at_frame (const framepos_t& frame) const +MetricSection::minute_at_sample (const samplepos_t sample) const +{ + return (sample / (double) _sample_rate) / 60.0; +} + +/***********************************************************************/ + +bool +ARDOUR::bbt_time_to_string (const BBT_Time& bbt, std::string& str) +{ + char buf[256]; + int retval = snprintf (buf, sizeof(buf), "%" PRIu32 "|%" PRIu32 "|%" PRIu32, bbt.bars, bbt.beats, + bbt.ticks); + + if (retval <= 0 || retval >= (int)sizeof(buf)) { + return false; + } + + str = buf; + return true; +} + +bool +ARDOUR::string_to_bbt_time (const std::string& str, BBT_Time& bbt) { - return (frame / (double) _sample_rate) / 60.0; + if (sscanf (str.c_str (), "%" PRIu32 "|%" PRIu32 "|%" PRIu32, &bbt.bars, &bbt.beats, + &bbt.ticks) == 3) { + return true; + } + return false; } + /***********************************************************************/ double -Meter::frames_per_grid (const Tempo& tempo, framecnt_t sr) const +Meter::samples_per_grid (const Tempo& tempo, samplecnt_t sr) const { /* This is tempo- and meter-sensitive. The number it returns is based on the interval between any two lines in the @@ -71,127 +101,138 @@ Meter::frames_per_grid (const Tempo& tempo, framecnt_t sr) const The return value IS NOT interpretable in terms of "beats". */ - return (60.0 * sr) / (tempo.note_types_per_minute() * (_note_type/tempo.note_type())); + return (60.0 * sr) / (tempo.note_types_per_minute() * (_note_type / tempo.note_type())); } double -Meter::frames_per_bar (const Tempo& tempo, framecnt_t sr) const +Meter::samples_per_bar (const Tempo& tempo, samplecnt_t sr) const +{ + return samples_per_grid (tempo, sr) * _divisions_per_bar; +} + +/***********************************************************************/ + +void +MetricSection::add_state_to_node(XMLNode& node) const +{ + node.set_property ("pulse", _pulse); + node.set_property ("frame", sample()); + node.set_property ("movable", !_initial); + node.set_property ("lock-style", _position_lock_style); +} + +int +MetricSection::set_state (const XMLNode& node, int /*version*/) { - return frames_per_grid (tempo, sr) * _divisions_per_bar; + node.get_property ("pulse", _pulse); + + samplepos_t sample; + if (node.get_property ("frame", sample)) { + set_minute (minute_at_sample (sample)); + } + + bool tmp; + if (!node.get_property ("movable", tmp)) { + error << _("TempoSection XML node has no \"movable\" property") << endmsg; + throw failed_constructor(); + } + _initial = !tmp; + + if (!node.get_property ("lock-style", _position_lock_style)) { + if (!initial()) { + _position_lock_style = MusicTime; + } else { + _position_lock_style = AudioTime; + } + } + return 0; } /***********************************************************************/ const string TempoSection::xml_state_node_name = "Tempo"; -TempoSection::TempoSection (const XMLNode& node, framecnt_t sample_rate) +TempoSection::TempoSection (const XMLNode& node, samplecnt_t sample_rate) : MetricSection (0.0, 0, MusicTime, true, sample_rate) , Tempo (TempoMap::default_tempo()) - , _c_func (0.0) + , _c (0.0) , _active (true) , _locked_to_meter (false) + , _clamped (false) { - XMLProperty const * prop; - LocaleGuard lg; BBT_Time bbt; - double pulse; - uint32_t frame; - bool had_beats_per_minute = false; - - _legacy_bbt = BBT_Time (0, 0, 0); - - if ((prop = node.property ("start")) != 0) { - if (sscanf (prop->value().c_str(), "%" PRIu32 "|%" PRIu32 "|%" PRIu32, - &bbt.bars, - &bbt.beats, - &bbt.ticks) == 3) { + std::string start_bbt; + _legacy_bbt.bars = 0; // legacy session check compars .bars != 0; default BBT_Time c'tor uses 1. + if (node.get_property ("start", start_bbt)) { + if (string_to_bbt_time (start_bbt, bbt)) { /* legacy session - start used to be in bbt*/ _legacy_bbt = bbt; - pulse = -1.0; + set_pulse(-1.0); info << _("Legacy session detected. TempoSection XML node will be altered.") << endmsg; } } - if ((prop = node.property ("pulse")) != 0) { - if (sscanf (prop->value().c_str(), "%lf", &pulse) != 1) { - error << _("TempoSection XML node has an illegal \"pulse\" value") << endmsg; - } - } - - set_pulse (pulse); - - if ((prop = node.property ("frame")) != 0) { - if (sscanf (prop->value().c_str(), "%" PRIu32, &frame) != 1) { - error << _("TempoSection XML node has an illegal \"frame\" value") << endmsg; - } else { - set_minute (minute_at_frame (frame)); - } - } + // Don't worry about return value, exception will be thrown on error + MetricSection::set_state (node, Stateful::loading_state_version); - /* replace old beats-per-minute with note-types-per-minute */ - if ((prop = node.property ("beats-per-minute")) != 0) { - info << _("Renaming legacy \"beats-per-minute\" XML node to note-types-per-minute") << endmsg; - if (sscanf (prop->value().c_str(), "%lf", &_note_types_per_minute) != 1 || _note_types_per_minute < 0.0) { - error << _("TempoSection XML node has an illegal \"beats-per-minutee\" value") << endmsg; + if (node.get_property ("beats-per-minute", _note_types_per_minute)) { + if (_note_types_per_minute < 0.0) { + error << _("TempoSection XML node has an illegal \"beats_per_minute\" value") << endmsg; throw failed_constructor(); } - had_beats_per_minute = true; } - if ((prop = node.property ("note-types-per-minute")) != 0) { - if (sscanf (prop->value().c_str(), "%lf", &_note_types_per_minute) != 1 || _note_types_per_minute < 0.0) { - error << _("TempoSection XML node has an illegal \"note-types-per-minute\" value") << endmsg; + if (node.get_property ("note-type", _note_type)) { + if (_note_type < 1.0) { + error << _("TempoSection XML node has an illegal \"note-type\" value") << endmsg; throw failed_constructor(); } - } else if (!had_beats_per_minute) { - error << _("TempoSection XML node has no \"note-types-per-minute\" or \"beats-per-minute\" property") << endmsg; - throw failed_constructor(); - } - - if ((prop = node.property ("note-type")) == 0) { + } else { /* older session, make note type be quarter by default */ _note_type = 4.0; - } else { - if (sscanf (prop->value().c_str(), "%lf", &_note_type) != 1 || _note_type < 1.0) { - error << _("TempoSection XML node has an illegal \"note-type\" value") << endmsg; - throw failed_constructor(); } + + if (!node.get_property ("clamped", _clamped)) { + _clamped = false; } - if ((prop = node.property ("movable")) == 0) { - error << _("TempoSection XML node has no \"movable\" property") << endmsg; - throw failed_constructor(); + if (node.get_property ("end-beats-per-minute", _end_note_types_per_minute)) { + if (_end_note_types_per_minute < 0.0) { + info << _("TempoSection XML node has an illegal \"end-beats-per-minute\" value") << endmsg; + throw failed_constructor(); + } } - set_movable (string_is_affirmative (prop->value())); + TempoSection::Type old_type; + if (node.get_property ("tempo-type", old_type)) { + /* sessions with a tempo-type node contain no end-beats-per-minute. + if the legacy node indicates a constant tempo, simply fill this in with the + start tempo. otherwise we need the next neighbour to know what it will be. + */ - if ((prop = node.property ("active")) == 0) { - warning << _("TempoSection XML node has no \"active\" property") << endmsg; - set_active(true); - } else { - set_active (string_is_affirmative (prop->value())); + if (old_type == TempoSection::Constant) { + _end_note_types_per_minute = _note_types_per_minute; + } else { + _end_note_types_per_minute = -1.0; + } } - if ((prop = node.property ("tempo-type")) == 0) { - _type = Constant; - } else { - _type = Type (string_2_enum (prop->value(), _type)); + if (!node.get_property ("active", _active)) { + warning << _("TempoSection XML node has no \"active\" property") << endmsg; + _active = true; } - if ((prop = node.property ("lock-style")) == 0) { - if (movable()) { - set_position_lock_style (MusicTime); + if (!node.get_property ("locked-to-meter", _locked_to_meter)) { + if (initial()) { + set_locked_to_meter (true); } else { - set_position_lock_style (AudioTime); + set_locked_to_meter (false); } - } else { - set_position_lock_style (PositionLockStyle (string_2_enum (prop->value(), position_lock_style()))); } - if ((prop = node.property ("locked-to-meter")) == 0) { - set_locked_to_meter (false); - } else { - set_locked_to_meter (string_is_affirmative (prop->value())); + /* 5.5 marked initial tempo as not locked to meter. this should always be true anyway */ + if (initial()) { + set_locked_to_meter (true); } } @@ -199,32 +240,17 @@ XMLNode& TempoSection::get_state() const { XMLNode *root = new XMLNode (xml_state_node_name); - char buf[256]; - LocaleGuard lg; - - snprintf (buf, sizeof (buf), "%lf", pulse()); - root->add_property ("pulse", buf); - snprintf (buf, sizeof (buf), "%li", frame()); - root->add_property ("frame", buf); - snprintf (buf, sizeof (buf), "%lf", _note_types_per_minute); - root->add_property ("note-types-per-minute", buf); - snprintf (buf, sizeof (buf), "%lf", _note_type); - root->add_property ("note-type", buf); - snprintf (buf, sizeof (buf), "%s", movable()?"yes":"no"); - root->add_property ("movable", buf); - snprintf (buf, sizeof (buf), "%s", active()?"yes":"no"); - root->add_property ("active", buf); - root->add_property ("tempo-type", enum_2_string (_type)); - root->add_property ("lock-style", enum_2_string (position_lock_style())); - root->add_property ("locked-to-meter", locked_to_meter()?"yes":"no"); - return *root; -} + MetricSection::add_state_to_node (*root); -void -TempoSection::set_type (Type type) -{ - _type = type; + root->set_property ("beats-per-minute", _note_types_per_minute); + root->set_property ("note-type", _note_type); + root->set_property ("clamped", _clamped); + root->set_property ("end-beats-per-minute", _end_note_types_per_minute); + root->set_property ("active", _active); + root->set_property ("locked-to-meter", _locked_to_meter); + + return *root; } /** returns the Tempo at the session-relative minute. @@ -232,12 +258,12 @@ TempoSection::set_type (Type type) Tempo TempoSection::tempo_at_minute (const double& m) const { - - if (_type == Constant || _c_func == 0.0) { + const bool constant = type() == Constant || _c == 0.0 || (initial() && m < minute()); + if (constant) { return Tempo (note_types_per_minute(), note_type()); } - return Tempo (_tempo_at_time (m - minute()), _note_type); + return Tempo (_tempo_at_time (m - minute()), _note_type, _end_note_types_per_minute); } /** returns the session relative minute where the supplied tempo in note types per minute occurs. @@ -249,17 +275,17 @@ TempoSection::tempo_at_minute (const double& m) const * */ -/** user feedback dictates that if tempoA (120, 4.0) precedes tempoB (120, 8.0), - * there will be no ramp between the two even if set to ramped. +/** if tempoA (120, 4.0) precedes tempoB (120, 8.0), + * there should be no ramp between the two even if we are ramped. * in other words a ramp should only place a curve on note_types_per_minute. * we should be able to use Tempo note type here, but the above * complicates things a bit. - * we would ideally like to use arbitrary Tempo structs here. */ double TempoSection::minute_at_ntpm (const double& ntpm, const double& p) const { - if (_type == Constant || _c_func == 0.0) { + const bool constant = type() == Constant || _c == 0.0 || (initial() && p < pulse()); + if (constant) { return ((p - pulse()) / pulses_per_minute()) + minute(); } @@ -271,12 +297,13 @@ TempoSection::minute_at_ntpm (const double& ntpm, const double& p) const Tempo TempoSection::tempo_at_pulse (const double& p) const { + const bool constant = type() == Constant || _c == 0.0 || (initial() && p < pulse()); - if (_type == Constant || _c_func == 0.0) { + if (constant) { return Tempo (note_types_per_minute(), note_type()); } - return Tempo (_tempo_at_pulse (p - pulse()), _note_type); + return Tempo (_tempo_at_pulse (p - pulse()), _note_type, _end_note_types_per_minute); } /** returns the whole-note pulse where a tempo in note types per minute occurs. @@ -292,7 +319,8 @@ TempoSection::tempo_at_pulse (const double& p) const double TempoSection::pulse_at_ntpm (const double& ntpm, const double& m) const { - if (_type == Constant || _c_func == 0.0) { + const bool constant = type() == Constant || _c == 0.0 || (initial() && m < minute()); + if (constant) { return ((m - minute()) * pulses_per_minute()) + pulse(); } @@ -304,7 +332,8 @@ TempoSection::pulse_at_ntpm (const double& ntpm, const double& m) const double TempoSection::pulse_at_minute (const double& m) const { - if (_type == Constant || _c_func == 0.0) { + const bool constant = type() == Constant || _c == 0.0 || (initial() && m < minute()); + if (constant) { return ((m - minute()) * pulses_per_minute()) + pulse(); } @@ -316,31 +345,40 @@ TempoSection::pulse_at_minute (const double& m) const double TempoSection::minute_at_pulse (const double& p) const { - if (_type == Constant || _c_func == 0.0) { + const bool constant = type() == Constant || _c == 0.0 || (initial() && p < pulse()); + if (constant) { return ((p - pulse()) / pulses_per_minute()) + minute(); } return _time_at_pulse (p - pulse()) + minute(); } +/** returns thw whole-note pulse at session sample position f. + * @param f the sample position. + * @return the position in whole-note pulses corresponding to f + * + * for use with musical units whose granularity is coarser than samples (e.g. ticks) +*/ double -TempoSection::pulse_at_frame (const framepos_t& f) const +TempoSection::pulse_at_sample (const samplepos_t f) const { - if (_type == Constant || _c_func == 0.0) { - return (minute_at_frame (f - frame()) * pulses_per_minute()) + pulse(); + const bool constant = type() == Constant || _c == 0.0 || (initial() && f < sample()); + if (constant) { + return (minute_at_sample (f - sample()) * pulses_per_minute()) + pulse(); } - return _pulse_at_time (minute_at_frame (f - frame())) + pulse(); + return _pulse_at_time (minute_at_sample (f - sample())) + pulse(); } -framepos_t -TempoSection::frame_at_pulse (const double& p) const +samplepos_t +TempoSection::sample_at_pulse (const double& p) const { - if (_type == Constant || _c_func == 0.0) { - return frame_at_minute (((p - pulse()) / pulses_per_minute()) + minute()); + const bool constant = type() == Constant || _c == 0.0 || (initial() && p < pulse()); + if (constant) { + return sample_at_minute (((p - pulse()) / pulses_per_minute()) + minute()); } - return frame_at_minute (_time_at_pulse (p - pulse()) + minute()); + return sample_at_minute (_time_at_pulse (p - pulse()) + minute()); } /* @@ -424,8 +462,12 @@ https://www.zhdk.ch/fileadmin/data_subsites/data_icst/Downloads/Timegrid/ICST_Te * @return the calculated function constant */ double -TempoSection::compute_c_func_pulse (const double& end_npm, const double& end_pulse) const +TempoSection::compute_c_pulse (const double& end_npm, const double& end_pulse) const { + if (note_types_per_minute() == end_npm || type() == Constant) { + return 0.0; + } + double const log_tempo_ratio = log (end_npm / note_types_per_minute()); return (note_types_per_minute() * expm1 (log_tempo_ratio)) / ((end_pulse - pulse()) * _note_type); } @@ -436,16 +478,20 @@ TempoSection::compute_c_func_pulse (const double& end_npm, const double& end_pul * @return the calculated function constant */ double -TempoSection::compute_c_func_minute (const double& end_npm, const double& end_minute) const +TempoSection::compute_c_minute (const double& end_npm, const double& end_minute) const { + if (note_types_per_minute() == end_npm || type() == Constant) { + return 0.0; + } + return c_func (end_npm, end_minute - minute()); } /* position function */ double -TempoSection::a_func (double end_npm, double c_func) const +TempoSection::a_func (double end_npm, double c) const { - return log (end_npm / note_types_per_minute()) / c_func; + return log (end_npm / note_types_per_minute()) / c; } /*function constant*/ @@ -459,174 +505,118 @@ TempoSection::c_func (double end_npm, double end_time) const double TempoSection::_tempo_at_time (const double& time) const { - return exp (_c_func * time) * note_types_per_minute(); + return exp (_c * time) * note_types_per_minute(); } /* time in minutes at tempo in note types per minute */ double TempoSection::_time_at_tempo (const double& npm) const { - return log (npm / note_types_per_minute()) / _c_func; + return log (npm / note_types_per_minute()) / _c; } /* pulse at tempo in note types per minute */ double TempoSection::_pulse_at_tempo (const double& npm) const { - return ((npm - note_types_per_minute()) / _c_func) / _note_type; + return ((npm - note_types_per_minute()) / _c) / _note_type; } /* tempo in note types per minute at pulse */ double TempoSection::_tempo_at_pulse (const double& pulse) const { - return (pulse * _note_type * _c_func) + note_types_per_minute(); + return (pulse * _note_type * _c) + note_types_per_minute(); } /* pulse at time in minutes */ double TempoSection::_pulse_at_time (const double& time) const { - return (expm1 (_c_func * time) * (note_types_per_minute() / _c_func)) / _note_type; + return (expm1 (_c * time) * (note_types_per_minute() / _c)) / _note_type; } /* time in minutes at pulse */ double TempoSection::_time_at_pulse (const double& pulse) const { - return log1p ((_c_func * pulse * _note_type) / note_types_per_minute()) / _c_func; + return log1p ((_c * pulse * _note_type) / note_types_per_minute()) / _c; } /***********************************************************************/ const string MeterSection::xml_state_node_name = "Meter"; -MeterSection::MeterSection (const XMLNode& node, const framecnt_t sample_rate) +MeterSection::MeterSection (const XMLNode& node, const samplecnt_t sample_rate) : MetricSection (0.0, 0, MusicTime, false, sample_rate), Meter (TempoMap::default_meter()) { - XMLProperty const * prop; - LocaleGuard lg; - BBT_Time bbt; - double pulse = 0.0; - double beat = 0.0; - framepos_t frame = 0; pair start; + start.first = 0.0; - if ((prop = node.property ("start")) != 0) { - if (sscanf (prop->value().c_str(), "%" PRIu32 "|%" PRIu32 "|%" PRIu32, - &bbt.bars, - &bbt.beats, - &bbt.ticks) < 3) { - error << _("MeterSection XML node has an illegal \"start\" value") << endmsg; - } else { + std::string bbt_str; + if (node.get_property ("start", bbt_str)) { + if (string_to_bbt_time (bbt_str, start.second)) { /* legacy session - start used to be in bbt*/ info << _("Legacy session detected - MeterSection XML node will be altered.") << endmsg; - pulse = -1.0; - } - } - - if ((prop = node.property ("pulse")) != 0) { - if (sscanf (prop->value().c_str(), "%lf", &pulse) != 1) { - error << _("MeterSection XML node has an illegal \"pulse\" value") << endmsg; + set_pulse (-1.0); + } else { + error << _("MeterSection XML node has an illegal \"start\" value") << endmsg; } } - set_pulse (pulse); - if ((prop = node.property ("beat")) != 0) { - if (sscanf (prop->value().c_str(), "%lf", &beat) != 1) { - error << _("MeterSection XML node has an illegal \"beat\" value") << endmsg; - } - } + MetricSection::set_state (node, Stateful::loading_state_version); - start.first = beat; + node.get_property ("beat", start.first); - if ((prop = node.property ("bbt")) == 0) { + if (node.get_property ("bbt", bbt_str)) { + if (!string_to_bbt_time (bbt_str, start.second)) { + error << _("MeterSection XML node has an illegal \"bbt\" value") << endmsg; + throw failed_constructor(); + } + } else { warning << _("MeterSection XML node has no \"bbt\" property") << endmsg; - } else if (sscanf (prop->value().c_str(), "%" PRIu32 "|%" PRIu32 "|%" PRIu32, - &bbt.bars, - &bbt.beats, - &bbt.ticks) < 3) { - error << _("MeterSection XML node has an illegal \"bbt\" value") << endmsg; - throw failed_constructor(); } - start.second = bbt; set_beat (start); - if ((prop = node.property ("frame")) != 0) { - if (sscanf (prop->value().c_str(), "%li", &frame) != 1) { - error << _("MeterSection XML node has an illegal \"frame\" value") << endmsg; - } else { - set_minute (minute_at_frame (frame)); - } - } - /* beats-per-bar is old; divisions-per-bar is new */ - if ((prop = node.property ("divisions-per-bar")) == 0) { - if ((prop = node.property ("beats-per-bar")) == 0) { + if (!node.get_property ("divisions-per-bar", _divisions_per_bar)) { + if (!node.get_property ("beats-per-bar", _divisions_per_bar)) { error << _("MeterSection XML node has no \"beats-per-bar\" or \"divisions-per-bar\" property") << endmsg; throw failed_constructor(); } } - if (sscanf (prop->value().c_str(), "%lf", &_divisions_per_bar) != 1 || _divisions_per_bar < 0.0) { + + if (_divisions_per_bar < 0.0) { error << _("MeterSection XML node has an illegal \"divisions-per-bar\" value") << endmsg; throw failed_constructor(); } - if ((prop = node.property ("note-type")) == 0) { + if (!node.get_property ("note-type", _note_type)) { error << _("MeterSection XML node has no \"note-type\" property") << endmsg; throw failed_constructor(); } - if (sscanf (prop->value().c_str(), "%lf", &_note_type) != 1 || _note_type < 0.0) { - error << _("MeterSection XML node has an illegal \"note-type\" value") << endmsg; - throw failed_constructor(); - } - if ((prop = node.property ("movable")) == 0) { - error << _("MeterSection XML node has no \"movable\" property") << endmsg; + if (_note_type < 0.0) { + error << _("MeterSection XML node has an illegal \"note-type\" value") << endmsg; throw failed_constructor(); } - - set_movable (string_is_affirmative (prop->value())); - - if ((prop = node.property ("lock-style")) == 0) { - warning << _("MeterSection XML node has no \"lock-style\" property") << endmsg; - if (movable()) { - set_position_lock_style (MusicTime); - } else { - set_position_lock_style (AudioTime); - } - } else { - set_position_lock_style (PositionLockStyle (string_2_enum (prop->value(), position_lock_style()))); - } } XMLNode& MeterSection::get_state() const { XMLNode *root = new XMLNode (xml_state_node_name); - char buf[256]; - LocaleGuard lg; - - snprintf (buf, sizeof (buf), "%lf", pulse()); - root->add_property ("pulse", buf); - snprintf (buf, sizeof (buf), "%" PRIu32 "|%" PRIu32 "|%" PRIu32, - bbt().bars, - bbt().beats, - bbt().ticks); - root->add_property ("bbt", buf); - snprintf (buf, sizeof (buf), "%lf", beat()); - root->add_property ("beat", buf); - snprintf (buf, sizeof (buf), "%lf", _note_type); - root->add_property ("note-type", buf); - snprintf (buf, sizeof (buf), "%li", frame()); - root->add_property ("frame", buf); - root->add_property ("lock-style", enum_2_string (position_lock_style())); - snprintf (buf, sizeof (buf), "%lf", _divisions_per_bar); - root->add_property ("divisions-per-bar", buf); - snprintf (buf, sizeof (buf), "%s", movable()?"yes":"no"); - root->add_property ("movable", buf); + + MetricSection::add_state_to_node (*root); + + std::string bbt_str; + bbt_time_to_string (_bbt, bbt_str); + root->set_property ("bbt", bbt_str); + root->set_property ("beat", beat()); + root->set_property ("note-type", _note_type); + root->set_property ("divisions-per-bar", _divisions_per_bar); return *root; } @@ -671,40 +661,40 @@ MeterSection::get_state() const It is important to keep the _metrics in an order that makes sense. Because ramped MusicTime and AudioTime tempos can interact with each other, reordering is frequent. Care must be taken to keep _metrics in a solved state. - Solved means ordered by frame or pulse with frame-accurate precision (see check_solved()). + Solved means ordered by sample or pulse with sample-accurate precision (see check_solved()). Music and Audio Music and audio-locked objects may seem interchangeable on the surface, but when translating between audio samples and beat, remember that a sample is only a quantised approximation of the actual time (in minutes) of a beat. - Thus if a gui user points to the frame occupying the start of a music-locked object on 1|3|0, it does not - mean that this frame is the actual location in time of 1|3|0. + Thus if a gui user points to the sample occupying the start of a music-locked object on 1|3|0, it does not + mean that this sample is the actual location in time of 1|3|0. - You cannot use a frame measurement to determine beat distance except under special circumstances - (e.g. where the user has requested that a beat lie on a SMPTE frame or if the tempo is known to be constant over the duration). + You cannot use a sample measurement to determine beat distance except under special circumstances + (e.g. where the user has requested that a beat lie on a SMPTE sample or if the tempo is known to be constant over the duration). This means is that a user operating on a musical grid must supply the desired beat position and/or current beat quantization in order for the sample space the user is operating at to be translated correctly to the object. - The current approach is to interpret the supplied frame using the grid division the user has currently selected. - If the user has no musical grid set, they are actually operating in sample space (even SMPTE frames are rounded to audio frame), so - the supplied audio frame is interpreted as the desired musical location (beat_at_frame()). + The current approach is to interpret the supplied sample using the grid division the user has currently selected. + If the user has no musical grid set, they are actually operating in sample space (even SMPTE samples are rounded to audio sample), so + the supplied audio sample is interpreted as the desired musical location (beat_at_sample()). tldr: Beat, being a function of time, has nothing to do with sample rate, but time quantization can get in the way of precision. - When frame_at_beat() is called, the position calculation is performed in pulses and minutes. - The result is rounded to audio frames. - When beat_at_frame() is called, the frame is converted to minutes, with no rounding performed on the result. + When sample_at_beat() is called, the position calculation is performed in pulses and minutes. + The result is rounded to audio samples. + When beat_at_sample() is called, the sample is converted to minutes, with no rounding performed on the result. So : - frame_at_beat (beat_at_frame (frame)) == frame + sample_at_beat (beat_at_sample (sample)) == sample but : - beat_at_frame (frame_at_beat (beat)) != beat due to the time quantization of frame_at_beat(). + beat_at_sample (sample_at_beat (beat)) != beat due to the time quantization of sample_at_beat(). Doing the second one will result in a beat distance error of up to 0.5 audio samples. - frames_between_quarter_notes () eliminats this effect when determining time duration - from Beats distance, or instead work in quarter-notes and/or beats and convert to frames last. + samples_between_quarter_notes () eliminats this effect when determining time duration + from Beats distance, or instead work in quarter-notes and/or beats and convert to samples last. The above pointless example could instead do: beat_at_quarter_note (quarter_note_at_beat (beat)) to avoid rounding. @@ -721,28 +711,64 @@ struct MetricSectionSorter { struct MetricSectionFrameSorter { bool operator() (const MetricSection* a, const MetricSection* b) { - return a->frame() < b->frame(); + return a->sample() < b->sample(); } }; -TempoMap::TempoMap (framecnt_t fr) +TempoMap::TempoMap (samplecnt_t fr) { - _frame_rate = fr; + _sample_rate = fr; BBT_Time start (1, 1, 0); - TempoSection *t = new TempoSection (0.0, 0.0, _default_tempo.note_types_per_minute(), _default_tempo.note_type(), TempoSection::Ramp, AudioTime, fr); + TempoSection *t = new TempoSection (0.0, 0.0, _default_tempo, AudioTime, fr); MeterSection *m = new MeterSection (0.0, 0.0, 0.0, start, _default_meter.divisions_per_bar(), _default_meter.note_divisor(), AudioTime, fr); - t->set_movable (false); - m->set_movable (false); + t->set_initial (true); + t->set_locked_to_meter (true); + + m->set_initial (true); - /* note: frame time is correct (zero) for both of these */ + /* note: sample time is correct (zero) for both of these */ _metrics.push_back (t); _metrics.push_back (m); } +TempoMap& +TempoMap::operator= (TempoMap const & other) +{ + if (&other != this) { + Glib::Threads::RWLock::ReaderLock lr (other.lock); + Glib::Threads::RWLock::WriterLock lm (lock); + _sample_rate = other._sample_rate; + + Metrics::const_iterator d = _metrics.begin(); + while (d != _metrics.end()) { + delete (*d); + ++d; + } + _metrics.clear(); + + for (Metrics::const_iterator m = other._metrics.begin(); m != other._metrics.end(); ++m) { + TempoSection const * const ts = dynamic_cast (*m); + MeterSection const * const ms = dynamic_cast (*m); + + if (ts) { + TempoSection* new_section = new TempoSection (*ts); + _metrics.push_back (new_section); + } else { + MeterSection* new_section = new MeterSection (*ms); + _metrics.push_back (new_section); + } + } + } + + PropertyChanged (PropertyChange()); + + return *this; +} + TempoMap::~TempoMap () { Metrics::const_iterator d = _metrics.begin(); @@ -753,16 +779,16 @@ TempoMap::~TempoMap () _metrics.clear(); } -framepos_t -TempoMap::frame_at_minute (const double time) const +samplepos_t +TempoMap::sample_at_minute (const double time) const { - return (framepos_t) floor ((time * 60.0 * _frame_rate) + 0.5); + return (samplepos_t) floor ((time * 60.0 * _sample_rate) + 0.5); } double -TempoMap::minute_at_frame (const framepos_t frame) const +TempoMap::minute_at_sample (const samplepos_t sample) const { - return (frame / (double) _frame_rate) / 60.0; + return (sample / (double) _sample_rate) / 60.0; } void @@ -791,8 +817,8 @@ TempoMap::remove_tempo_locked (const TempoSection& tempo) for (i = _metrics.begin(); i != _metrics.end(); ++i) { if (dynamic_cast (*i) != 0) { - if (tempo.frame() == (*i)->frame()) { - if ((*i)->movable()) { + if (tempo.sample() == (*i)->sample()) { + if (!(*i)->initial()) { delete (*i); _metrics.erase (i); return true; @@ -832,7 +858,7 @@ TempoMap::remove_meter_locked (const MeterSection& meter) for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { TempoSection* t = 0; if ((t = dynamic_cast (*i)) != 0) { - if (t->locked_to_meter() && meter.frame() == (*i)->frame()) { + if (t->locked_to_meter() && meter.sample() == (*i)->sample()) { delete (*i); _metrics.erase (i); break; @@ -843,8 +869,8 @@ TempoMap::remove_meter_locked (const MeterSection& meter) for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { if (dynamic_cast (*i) != 0) { - if (meter.frame() == (*i)->frame()) { - if ((*i)->movable()) { + if (meter.sample() == (*i)->sample()) { + if (!(*i)->initial()) { delete (*i); _metrics.erase (i); return true; @@ -896,9 +922,9 @@ TempoMap::do_insert (MetricSection* section) /* Tempo sections */ bool const ipm = insert_tempo->position_lock_style() == MusicTime; - if ((ipm && tempo->pulse() == insert_tempo->pulse()) || (!ipm && tempo->frame() == insert_tempo->frame())) { + if ((ipm && tempo->pulse() == insert_tempo->pulse()) || (!ipm && tempo->sample() == insert_tempo->sample())) { - if (!tempo->movable()) { + if (tempo->initial()) { /* can't (re)move this section, so overwrite * its data content (but not its properties as @@ -907,10 +933,6 @@ TempoMap::do_insert (MetricSection* section) *(dynamic_cast(*i)) = *(dynamic_cast(insert_tempo)); (*i)->set_position_lock_style (AudioTime); - TempoSection* t; - if ((t = dynamic_cast(*i)) != 0) { - t->set_type (insert_tempo->type()); - } need_add = false; } else { delete (*i); @@ -925,9 +947,9 @@ TempoMap::do_insert (MetricSection* section) bool const ipm = insert_meter->position_lock_style() == MusicTime; - if ((ipm && meter->beat() == insert_meter->beat()) || (!ipm && meter->frame() == insert_meter->frame())) { + if ((ipm && meter->beat() == insert_meter->beat()) || (!ipm && meter->sample() == insert_meter->sample())) { - if (!meter->movable()) { + if (meter->initial()) { /* can't (re)move this section, so overwrite * its data content (but not its properties as @@ -957,15 +979,24 @@ TempoMap::do_insert (MetricSection* section) MeterSection* const insert_meter = dynamic_cast (section); TempoSection* const insert_tempo = dynamic_cast (section); Metrics::iterator i; + if (insert_meter) { + TempoSection* prev_t = 0; + for (i = _metrics.begin(); i != _metrics.end(); ++i) { MeterSection* const meter = dynamic_cast (*i); + bool const ipm = insert_meter->position_lock_style() == MusicTime; if (meter) { - bool const ipm = insert_meter->position_lock_style() == MusicTime; - if ((ipm && meter->beat() > insert_meter->beat()) || (!ipm && meter->frame() > insert_meter->frame())) { + if ((ipm && meter->beat() > insert_meter->beat()) || (!ipm && meter->sample() > insert_meter->sample())) { + break; + } + } else { + if (prev_t && prev_t->locked_to_meter() && (!ipm && prev_t->sample() == insert_meter->sample())) { break; } + + prev_t = dynamic_cast (*i); } } } else if (insert_tempo) { @@ -974,7 +1005,9 @@ TempoMap::do_insert (MetricSection* section) if (tempo) { bool const ipm = insert_tempo->position_lock_style() == MusicTime; - if ((ipm && tempo->pulse() > insert_tempo->pulse()) || (!ipm && tempo->frame() > insert_tempo->frame())) { + const bool lm = insert_tempo->locked_to_meter(); + if ((ipm && tempo->pulse() > insert_tempo->pulse()) || (!ipm && tempo->sample() > insert_tempo->sample()) + || (lm && tempo->pulse() > insert_tempo->pulse())) { break; } } @@ -982,19 +1015,26 @@ TempoMap::do_insert (MetricSection* section) } _metrics.insert (i, section); - //dump (_metrics, std::cout); + //dump (std::cout); } } /* user supplies the exact pulse if pls == MusicTime */ TempoSection* -TempoMap::add_tempo (const Tempo& tempo, const double& pulse, const framepos_t& frame, ARDOUR::TempoSection::Type type, PositionLockStyle pls) +TempoMap::add_tempo (const Tempo& tempo, const double& pulse, const samplepos_t sample, PositionLockStyle pls) { + if (tempo.note_types_per_minute() <= 0.0) { + warning << "Cannot add tempo. note types per minute must be greater than zero." << endmsg; + return 0; + } + TempoSection* ts = 0; { Glib::Threads::RWLock::WriterLock lm (lock); - ts = add_tempo_locked (tempo, pulse, minute_at_frame (frame), type, pls, true); - } + /* here we default to not clamped for a new tempo section. preference? */ + ts = add_tempo_locked (tempo, pulse, minute_at_sample (sample), pls, true, false, false); + recompute_map (_metrics); + } PropertyChanged (PropertyChange ()); @@ -1002,27 +1042,49 @@ TempoMap::add_tempo (const Tempo& tempo, const double& pulse, const framepos_t& } void -TempoMap::replace_tempo (const TempoSection& ts, const Tempo& tempo, const double& pulse, const framepos_t& frame, TempoSection::Type type, PositionLockStyle pls) +TempoMap::replace_tempo (TempoSection& ts, const Tempo& tempo, const double& pulse, const samplepos_t sample, PositionLockStyle pls) { - const bool locked_to_meter = ts.locked_to_meter(); + if (tempo.note_types_per_minute() <= 0.0) { + warning << "Cannot replace tempo. note types per minute must be greater than zero." << endmsg; + return; + } + + bool const locked_to_meter = ts.locked_to_meter(); + bool const ts_clamped = ts.clamped(); + TempoSection* new_ts = 0; { Glib::Threads::RWLock::WriterLock lm (lock); TempoSection& first (first_tempo()); - if (ts.frame() != first.frame()) { - remove_tempo_locked (ts); - add_tempo_locked (tempo, pulse, minute_at_frame (frame), type, pls, true, locked_to_meter); + if (!ts.initial()) { + if (locked_to_meter) { + { + /* cannot move a meter-locked tempo section */ + *static_cast(&ts) = tempo; + recompute_map (_metrics); + } + } else { + remove_tempo_locked (ts); + new_ts = add_tempo_locked (tempo, pulse, minute_at_sample (sample), pls, true, locked_to_meter, ts_clamped); + /* enforce clampedness of next tempo section */ + TempoSection* next_t = next_tempo_section_locked (_metrics, new_ts); + if (next_t && next_t->clamped()) { + next_t->set_note_types_per_minute (new_ts->end_note_types_per_minute()); + } + } + } else { - first.set_type (type); first.set_pulse (0.0); - first.set_minute (minute_at_frame (frame)); + first.set_minute (minute_at_sample (sample)); first.set_position_lock_style (AudioTime); + first.set_locked_to_meter (true); + first.set_clamped (ts_clamped); { /* cannot move the first tempo section */ *static_cast(&first) = tempo; - recompute_map (_metrics); } } + recompute_map (_metrics); } PropertyChanged (PropertyChange ()); @@ -1030,43 +1092,53 @@ TempoMap::replace_tempo (const TempoSection& ts, const Tempo& tempo, const doubl TempoSection* TempoMap::add_tempo_locked (const Tempo& tempo, double pulse, double minute - , TempoSection::Type type, PositionLockStyle pls, bool recompute, bool locked_to_meter) + , PositionLockStyle pls, bool recompute, bool locked_to_meter, bool clamped) { - TempoSection* t = new TempoSection (pulse, minute, tempo.note_types_per_minute(), tempo.note_type(), type, pls, _frame_rate); + TempoSection* t = new TempoSection (pulse, minute, tempo, pls, _sample_rate); t->set_locked_to_meter (locked_to_meter); - bool solved = false; + t->set_clamped (clamped); do_insert (t); + TempoSection* prev_tempo = 0; + for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { + TempoSection* const this_t = dynamic_cast(*i); + if (this_t) { + if (this_t == t) { + if (prev_tempo && prev_tempo->type() == TempoSection::Ramp) { + prev_tempo->set_end_note_types_per_minute (t->note_types_per_minute()); + } + break; + } + prev_tempo = this_t; + } + } + if (recompute) { if (pls == AudioTime) { - solved = solve_map_minute (_metrics, t, t->minute()); + solve_map_minute (_metrics, t, t->minute()); } else { - solved = solve_map_pulse (_metrics, t, t->pulse()); + solve_map_pulse (_metrics, t, t->pulse()); } recompute_meters (_metrics); } - if (!solved && recompute) { - recompute_map (_metrics); - } - return t; } MeterSection* -TempoMap::add_meter (const Meter& meter, const double& beat, const Timecode::BBT_Time& where, PositionLockStyle pls) +TempoMap::add_meter (const Meter& meter, const Timecode::BBT_Time& where, samplepos_t sample, PositionLockStyle pls) { MeterSection* m = 0; { Glib::Threads::RWLock::WriterLock lm (lock); - m = add_meter_locked (meter, beat, where, pls, true); + m = add_meter_locked (meter, where, sample, pls, true); } #ifndef NDEBUG if (DEBUG_ENABLED(DEBUG::TempoMap)) { - dump (_metrics, std::cerr); + dump (std::cerr); } #endif @@ -1075,15 +1147,14 @@ TempoMap::add_meter (const Meter& meter, const double& beat, const Timecode::BBT } void -TempoMap::replace_meter (const MeterSection& ms, const Meter& meter, const BBT_Time& where, PositionLockStyle pls) +TempoMap::replace_meter (const MeterSection& ms, const Meter& meter, const BBT_Time& where, samplepos_t sample, PositionLockStyle pls) { { Glib::Threads::RWLock::WriterLock lm (lock); - const double beat = beat_at_bbt_locked (_metrics, where); - if (ms.movable()) { + if (!ms.initial()) { remove_meter_locked (ms); - add_meter_locked (meter, beat, where, pls, true); + add_meter_locked (meter, where, sample, pls, true); } else { MeterSection& first (first_meter()); TempoSection& first_t (first_tempo()); @@ -1091,10 +1162,11 @@ TempoMap::replace_meter (const MeterSection& ms, const Meter& meter, const BBT_T *static_cast(&first) = meter; first.set_position_lock_style (AudioTime); first.set_pulse (0.0); - //first.set_minute (minute_at_frame (frame)); + first.set_minute (minute_at_sample (sample)); pair beat = make_pair (0.0, BBT_Time (1, 1, 0)); first.set_beat (beat); first_t.set_minute (first.minute()); + first_t.set_locked_to_meter (true); first_t.set_pulse (0.0); first_t.set_position_lock_style (AudioTime); recompute_map (_metrics); @@ -1105,24 +1177,26 @@ TempoMap::replace_meter (const MeterSection& ms, const Meter& meter, const BBT_T } MeterSection* -TempoMap::add_meter_locked (const Meter& meter, double beat, const BBT_Time& where, PositionLockStyle pls, bool recompute) +TempoMap::add_meter_locked (const Meter& meter, const BBT_Time& bbt, samplepos_t sample, PositionLockStyle pls, bool recompute) { - const MeterSection& prev_m = meter_section_at_minute_locked (_metrics, minute_at_beat_locked (_metrics, beat) - minute_at_frame (1)); - const double pulse = ((where.bars - prev_m.bbt().bars) * (prev_m.divisions_per_bar() / prev_m.note_divisor())) + prev_m.pulse(); - const double time_minutes = minute_at_pulse_locked (_metrics, pulse); - TempoSection* mlt = 0; + double const minute_at_bbt = minute_at_bbt_locked (_metrics, bbt); + const MeterSection& prev_m = meter_section_at_minute_locked (_metrics, minute_at_bbt - minute_at_sample (1)); + double const pulse = ((bbt.bars - prev_m.bbt().bars) * (prev_m.divisions_per_bar() / prev_m.note_divisor())) + prev_m.pulse(); + /* the natural time of the BBT position */ + double const time_minutes = minute_at_pulse_locked (_metrics, pulse); if (pls == AudioTime) { - /* add meter-locked tempo */ - mlt = add_tempo_locked (tempo_at_minute_locked (_metrics, time_minutes), pulse, time_minutes, TempoSection::Ramp, AudioTime, true, true); + /* add meter-locked tempo at the natural time in the current map (sample may differ). */ + Tempo const tempo_at_time = tempo_at_minute_locked (_metrics, time_minutes); + TempoSection* mlt = add_tempo_locked (tempo_at_time, pulse, time_minutes, AudioTime, true, true, false); if (!mlt) { return 0; } - } + /* still using natural time for the position, ignoring lock style. */ + MeterSection* new_meter = new MeterSection (pulse, time_minutes, beat_at_bbt_locked (_metrics, bbt), bbt, meter.divisions_per_bar(), meter.note_divisor(), pls, _sample_rate); - MeterSection* new_meter = new MeterSection (pulse, time_minutes, beat, where, meter.divisions_per_bar(), meter.note_divisor(), pls, _frame_rate); bool solved = false; do_insert (new_meter); @@ -1130,9 +1204,16 @@ TempoMap::add_meter_locked (const Meter& meter, double beat, const BBT_Time& whe if (recompute) { if (pls == AudioTime) { - solved = solve_map_minute (_metrics, new_meter, time_minutes); + /* now set the audio locked meter's position to sample */ + solved = solve_map_minute (_metrics, new_meter, minute_at_sample (sample)); + /* we failed, most likely due to some impossible sample requirement wrt audio-locked tempi. + fudge sample so that the meter ends up at its BBT position instead. + */ + if (!solved) { + solved = solve_map_minute (_metrics, new_meter, minute_at_sample (prev_m.sample() + 1)); + } } else { - solved = solve_map_bbt (_metrics, new_meter, where); + solved = solve_map_bbt (_metrics, new_meter, bbt); /* required due to resetting the pulse of meter-locked tempi above. Arguably solve_map_bbt() should use solve_map_pulse (_metrics, TempoSection) instead, but afaict this cannot cause the map to be left unsolved (these tempi are all audio locked). @@ -1153,9 +1234,9 @@ TempoMap::add_meter_locked (const Meter& meter, double beat, const BBT_Time& whe } void -TempoMap::change_initial_tempo (double note_types_per_minute, double note_type) +TempoMap::change_initial_tempo (double note_types_per_minute, double note_type, double end_note_types_per_minute) { - Tempo newtempo (note_types_per_minute, note_type); + Tempo newtempo (note_types_per_minute, note_type, end_note_types_per_minute); TempoSection* t; for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { @@ -1175,9 +1256,9 @@ TempoMap::change_initial_tempo (double note_types_per_minute, double note_type) } void -TempoMap::change_existing_tempo_at (framepos_t where, double note_types_per_minute, double note_type) +TempoMap::change_existing_tempo_at (samplepos_t where, double note_types_per_minute, double note_type, double end_ntpm) { - Tempo newtempo (note_types_per_minute, note_type); + Tempo newtempo (note_types_per_minute, note_type, end_ntpm); TempoSection* prev; TempoSection* first; @@ -1188,7 +1269,7 @@ TempoMap::change_existing_tempo_at (framepos_t where, double note_types_per_minu for (first = 0, i = _metrics.begin(), prev = 0; i != _metrics.end(); ++i) { - if ((*i)->frame() > where) { + if ((*i)->sample() > where) { break; } @@ -1272,7 +1353,7 @@ TempoMap::first_tempo () const if (!t->active()) { continue; } - if (!t->movable()) { + if (t->initial()) { return *t; } } @@ -1293,7 +1374,7 @@ TempoMap::first_tempo () if (!t->active()) { continue; } - if (!t->movable()) { + if (t->initial()) { return *t; } } @@ -1316,36 +1397,38 @@ TempoMap::recompute_tempi (Metrics& metrics) if (!t->active()) { continue; } - if (!t->movable()) { + if (t->initial()) { if (!prev_t) { t->set_pulse (0.0); prev_t = t; continue; } } + if (prev_t) { if (t->position_lock_style() == AudioTime) { - prev_t->set_c_func (prev_t->compute_c_func_minute (t->note_types_per_minute(), t->minute())); + prev_t->set_c (prev_t->compute_c_minute (prev_t->end_note_types_per_minute(), t->minute())); if (!t->locked_to_meter()) { - t->set_pulse (prev_t->pulse_at_ntpm (t->note_types_per_minute(), t->minute())); + t->set_pulse (prev_t->pulse_at_ntpm (prev_t->end_note_types_per_minute(), t->minute())); } } else { - prev_t->set_c_func (prev_t->compute_c_func_pulse (t->note_types_per_minute(), t->pulse())); - t->set_minute (prev_t->minute_at_ntpm (t->note_types_per_minute(), t->pulse())); + prev_t->set_c (prev_t->compute_c_pulse (prev_t->end_note_types_per_minute(), t->pulse())); + t->set_minute (prev_t->minute_at_ntpm (prev_t->end_note_types_per_minute(), t->pulse())); } } prev_t = t; } } - prev_t->set_c_func (0.0); + assert (prev_t); + prev_t->set_c (0.0); } /* tempos must be positioned correctly. the current approach is to use a meter's bbt time as its base position unit. an audio-locked meter requires a recomputation of pulse and beat (but not bbt), - while a music-locked meter requires recomputations of frame pulse and beat (but not bbt) + while a music-locked meter requires recomputations of sample pulse and beat (but not bbt) */ void TempoMap::recompute_meters (Metrics& metrics) @@ -1364,7 +1447,7 @@ TempoMap::recompute_meters (Metrics& metrics) TempoSection* t; if ((*ii)->is_tempo()) { t = static_cast (*ii); - if ((t->locked_to_meter() || !t->movable()) && t->frame() == meter->frame()) { + if (t->locked_to_meter() && t->sample() == meter->sample()) { meter_locked_tempo = t; break; } @@ -1372,14 +1455,16 @@ TempoMap::recompute_meters (Metrics& metrics) } if (prev_m) { - const double beats = (meter->bbt().bars - prev_m->bbt().bars) * prev_m->divisions_per_bar(); + double beats = (meter->bbt().bars - prev_m->bbt().bars) * prev_m->divisions_per_bar(); if (beats + prev_m->beat() != meter->beat()) { /* reordering caused a bbt change */ + + beats = meter->beat() - prev_m->beat(); b_bbt = make_pair (beats + prev_m->beat() , BBT_Time ((beats / prev_m->divisions_per_bar()) + prev_m->bbt().bars, 1, 0)); pulse = prev_m->pulse() + (beats / prev_m->note_divisor()); - } else if (meter->movable()) { + } else if (!meter->initial()) { b_bbt = make_pair (meter->beat(), meter->bbt()); pulse = prev_m->pulse() + (beats / prev_m->note_divisor()); } @@ -1423,7 +1508,7 @@ TempoMap::recompute_meters (Metrics& metrics) } void -TempoMap::recompute_map (Metrics& metrics, framepos_t end) +TempoMap::recompute_map (Metrics& metrics, samplepos_t end) { /* CALLER MUST HOLD WRITE LOCK */ @@ -1440,11 +1525,15 @@ TempoMap::recompute_map (Metrics& metrics, framepos_t end) } TempoMetric -TempoMap::metric_at (framepos_t frame, Metrics::const_iterator* last) const +TempoMap::metric_at (samplepos_t sample, Metrics::const_iterator* last) const { Glib::Threads::RWLock::ReaderLock lm (lock); TempoMetric m (first_meter(), first_tempo()); + if (last) { + *last = ++_metrics.begin(); + } + /* at this point, we are *guaranteed* to have m.meter and m.tempo pointing at something, because we insert the default tempo and meter during TempoMap construction. @@ -1454,7 +1543,7 @@ TempoMap::metric_at (framepos_t frame, Metrics::const_iterator* last) const for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) { - if ((*i)->frame() > frame) { + if ((*i)->sample() > sample) { break; } @@ -1499,21 +1588,21 @@ TempoMap::metric_at (BBT_Time bbt) const return m; } -/** Returns the BBT (meter-based) beat corresponding to the supplied frame, possibly returning a negative value. - * @param frame The session frame position. - * @return The beat duration according to the tempo map at the supplied frame. +/** Returns the BBT (meter-based) beat corresponding to the supplied sample, possibly returning a negative value. + * @param sample The session sample position. + * @return The beat duration according to the tempo map at the supplied sample. * - * If the supplied frame lies before the first meter, the returned beat duration will be negative. + * If the supplied sample lies before the first meter, the returned beat duration will be negative. * The returned beat is obtained using the first meter and the continuation of the tempo curve (backwards). * * This function uses both tempo and meter. */ double -TempoMap::beat_at_frame (const framecnt_t& frame) const +TempoMap::beat_at_sample (const samplecnt_t sample) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return beat_at_minute_locked (_metrics, minute_at_frame (frame)); + return beat_at_minute_locked (_metrics, minute_at_sample (sample)); } /* This function uses both tempo and meter.*/ @@ -1544,18 +1633,18 @@ TempoMap::beat_at_minute_locked (const Metrics& metrics, const double& minute) c return beat; } -/** Returns the frame corresponding to the supplied BBT (meter-based) beat. +/** Returns the sample corresponding to the supplied BBT (meter-based) beat. * @param beat The BBT (meter-based) beat. - * @return The frame duration according to the tempo map at the supplied BBT (meter-based) beat. + * @return The sample duration according to the tempo map at the supplied BBT (meter-based) beat. * * This function uses both tempo and meter. */ -framepos_t -TempoMap::frame_at_beat (const double& beat) const +samplepos_t +TempoMap::sample_at_beat (const double& beat) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return frame_at_minute (minute_at_beat_locked (_metrics, beat)); + return sample_at_minute (minute_at_beat_locked (_metrics, beat)); } /* meter & tempo section based */ @@ -1576,12 +1665,18 @@ TempoMap::minute_at_beat_locked (const Metrics& metrics, const double& beat) con prev_m = m; } } + assert (prev_m); TempoSection* t; for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { if ((*i)->is_tempo()) { t = static_cast (*i); + + if (!t->active()) { + continue; + } + if (prev_t && ((t->pulse() - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat() > beat) { break; } @@ -1589,21 +1684,22 @@ TempoMap::minute_at_beat_locked (const Metrics& metrics, const double& beat) con } } + assert (prev_t); return prev_t->minute_at_pulse (((beat - prev_m->beat()) / prev_m->note_divisor()) + prev_m->pulse()); } -/** Returns a Tempo corresponding to the supplied frame position. - * @param frame The audio frame. - * @return a Tempo according to the tempo map at the supplied frame. +/** Returns a Tempo corresponding to the supplied sample position. + * @param sample The audio sample. + * @return a Tempo according to the tempo map at the supplied sample. * */ Tempo -TempoMap::tempo_at_frame (const framepos_t& frame) const +TempoMap::tempo_at_sample (const samplepos_t sample) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return tempo_at_minute_locked (_metrics, minute_at_frame (frame)); + return tempo_at_minute_locked (_metrics, minute_at_sample (sample)); } Tempo @@ -1620,27 +1716,27 @@ TempoMap::tempo_at_minute_locked (const Metrics& metrics, const double& minute) continue; } if ((prev_t) && t->minute() > minute) { - /* t is the section past frame */ + /* t is the section past sample */ return prev_t->tempo_at_minute (minute); } prev_t = t; } } - return Tempo (prev_t->note_types_per_minute(), prev_t->note_type()); + return Tempo (prev_t->note_types_per_minute(), prev_t->note_type(), prev_t->end_note_types_per_minute()); } -/** returns the frame at which the supplied tempo occurs, or - * the frame of the last tempo section (search exhausted) +/** returns the sample at which the supplied tempo occurs, or + * the sample of the last tempo section (search exhausted) * only the position of the first occurence will be returned * (extend me) */ -framepos_t -TempoMap::frame_at_tempo (const Tempo& tempo) const +samplepos_t +TempoMap::sample_at_tempo (const Tempo& tempo) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return frame_at_minute (minute_at_tempo_locked (_metrics, tempo)); + return sample_at_minute (minute_at_tempo_locked (_metrics, tempo)); } double @@ -1660,17 +1756,20 @@ TempoMap::minute_at_tempo_locked (const Metrics& metrics, const Tempo& tempo) co continue; } - const double t_bpm = t->note_types_per_minute(); - if (t_bpm == tempo_bpm) { + + if (t->note_types_per_minute() == tempo_bpm) { return t->minute(); } if (prev_t) { const double prev_t_bpm = prev_t->note_types_per_minute(); + const double prev_t_end_bpm = prev_t->end_note_types_per_minute(); + if ((prev_t_bpm > tempo_bpm && prev_t_end_bpm < tempo_bpm) + || (prev_t_bpm < tempo_bpm && prev_t_end_bpm > tempo_bpm) + || (prev_t_end_bpm == tempo_bpm)) { - if ((t_bpm > tempo_bpm && prev_t_bpm < tempo_bpm) || (t_bpm < tempo_bpm && prev_t_bpm > tempo_bpm)) { - return prev_t->minute_at_ntpm (prev_t->note_types_per_minute(), prev_t->pulse()); + return prev_t->minute_at_ntpm (tempo_bpm, t->pulse()); } } prev_t = t; @@ -1694,14 +1793,14 @@ TempoMap::tempo_at_pulse_locked (const Metrics& metrics, const double& pulse) co continue; } if ((prev_t) && t->pulse() > pulse) { - /* t is the section past frame */ + /* t is the section past sample */ return prev_t->tempo_at_pulse (pulse); } prev_t = t; } } - return Tempo (prev_t->note_types_per_minute(), prev_t->note_type()); + return Tempo (prev_t->note_types_per_minute(), prev_t->note_type(), prev_t->end_note_types_per_minute()); } double @@ -1763,7 +1862,7 @@ TempoMap::quarter_note_at_tempo (const Tempo& tempo) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return pulse_at_tempo_locked (_metrics, tempo) * 4.0;; + return pulse_at_tempo_locked (_metrics, tempo) * 4.0; } /** Returns the whole-note pulse corresponding to the supplied BBT (meter-based) beat. @@ -1806,6 +1905,7 @@ TempoMap::beat_at_pulse_locked (const Metrics& metrics, const double& pulse) con prev_m = m; } } + assert (prev_m); double const ret = ((pulse - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat(); return ret; @@ -1826,7 +1926,7 @@ TempoMap::pulse_at_minute_locked (const Metrics& metrics, const double& minute) continue; } if (prev_t && t->minute() > minute) { - /*the previous ts is the one containing the frame */ + /*the previous ts is the one containing the sample */ const double ret = prev_t->pulse_at_minute (minute); /* audio locked section in new meter*/ if (t->pulse() < ret) { @@ -1952,6 +2052,7 @@ TempoMap::bbt_at_beat_locked (const Metrics& metrics, const double& b) const prev_m = m; } } + assert (prev_m); const double beats_in_ms = beats - prev_m->beat(); const uint32_t bars_in_ms = (uint32_t) floor (beats_in_ms / prev_m->divisions_per_bar()); @@ -2089,6 +2190,8 @@ TempoMap::bbt_at_pulse_locked (const Metrics& metrics, const double& pulse) cons } } + assert (prev_m); + const double beats_in_ms = (pulse - prev_m->pulse()) * prev_m->note_divisor(); const uint32_t bars_in_ms = (uint32_t) floor (beats_in_ms / prev_m->divisions_per_bar()); const uint32_t total_bars = bars_in_ms + (prev_m->bbt().bars - 1); @@ -2118,37 +2221,44 @@ TempoMap::bbt_at_pulse_locked (const Metrics& metrics, const double& pulse) cons return ret; } -/** Returns the BBT time corresponding to the supplied frame position. - * @param frame the position in audio samples. - * @return the BBT time at the frame position . +/** Returns the BBT time corresponding to the supplied sample position. + * @param sample the position in audio samples. + * @return the BBT time at the sample position . * */ BBT_Time -TempoMap::bbt_at_frame (framepos_t frame) +TempoMap::bbt_at_sample (samplepos_t sample) { - if (frame < 0) { + if (sample < 0) { BBT_Time bbt; bbt.bars = 1; bbt.beats = 1; bbt.ticks = 0; - warning << string_compose (_("tempo map was asked for BBT time at frame %1\n"), frame) << endmsg; +#ifndef NDEBUG + warning << string_compose (_("tempo map was asked for BBT time at sample %1\n"), sample) << endmsg; +#endif return bbt; } + + const double minute = minute_at_sample (sample); + Glib::Threads::RWLock::ReaderLock lm (lock); - return bbt_at_minute_locked (_metrics, minute_at_frame (frame)); + return bbt_at_minute_locked (_metrics, minute); } BBT_Time -TempoMap::bbt_at_frame_rt (framepos_t frame) +TempoMap::bbt_at_sample_rt (samplepos_t sample) { + const double minute = minute_at_sample (sample); + Glib::Threads::RWLock::ReaderLock lm (lock, Glib::Threads::TRY_LOCK); if (!lm.locked()) { - throw std::logic_error ("TempoMap::bbt_at_frame_rt() could not lock tempo map"); + throw std::logic_error ("TempoMap::bbt_at_sample_rt() could not lock tempo map"); } - return bbt_at_minute_locked (_metrics, minute_at_frame (frame)); + return bbt_at_minute_locked (_metrics, minute); } Timecode::BBT_Time @@ -2181,7 +2291,7 @@ TempoMap::bbt_at_minute_locked (const Metrics& metrics, const double& minute) co double beat = prev_m->beat() + (ts.pulse_at_minute (minute) - prev_m->pulse()) * prev_m->note_divisor(); - /* handle frame before first meter */ + /* handle sample before first meter */ if (minute < prev_m->minute()) { beat = 0.0; } @@ -2221,25 +2331,32 @@ TempoMap::bbt_at_minute_locked (const Metrics& metrics, const double& minute) co return ret; } -/** Returns the frame position corresponding to the supplied BBT time. +/** Returns the sample position corresponding to the supplied BBT time. * @param bbt the position in BBT time. - * @return the frame position at bbt. + * @return the sample position at bbt. * */ -framepos_t -TempoMap::frame_at_bbt (const BBT_Time& bbt) +samplepos_t +TempoMap::sample_at_bbt (const BBT_Time& bbt) { if (bbt.bars < 1) { - warning << string_compose (_("tempo map asked for frame time at bar < 1 (%1)\n"), bbt) << endmsg; +#ifndef NDEBUG + warning << string_compose (_("tempo map asked for sample time at bar < 1 (%1)\n"), bbt) << endmsg; +#endif return 0; } if (bbt.beats < 1) { throw std::logic_error ("beats are counted from one"); } - Glib::Threads::RWLock::ReaderLock lm (lock); - return frame_at_minute (minute_at_bbt_locked (_metrics, bbt)); + double minute; + { + Glib::Threads::RWLock::ReaderLock lm (lock); + minute = minute_at_bbt_locked (_metrics, bbt); + } + + return sample_at_minute (minute); } /* meter & tempo section based */ @@ -2253,135 +2370,108 @@ TempoMap::minute_at_bbt_locked (const Metrics& metrics, const BBT_Time& bbt) con } /** - * Returns the quarter-note beat position corresponding to the supplied frame. + * Returns the quarter-note beat position corresponding to the supplied sample. * - * @param frame the position in frames. - * @return The quarter-note position of the supplied frame. Ignores meter. + * @param sample the position in samples. + * @return The quarter-note position of the supplied sample. Ignores meter. * */ double -TempoMap::quarter_note_at_frame (const framepos_t frame) const +TempoMap::quarter_note_at_sample (const samplepos_t sample) const { - Glib::Threads::RWLock::ReaderLock lm (lock); + const double minute = minute_at_sample (sample); - const double ret = quarter_note_at_minute_locked (_metrics, minute_at_frame (frame)); + Glib::Threads::RWLock::ReaderLock lm (lock); - return ret; + return pulse_at_minute_locked (_metrics, minute) * 4.0; } double -TempoMap::quarter_note_at_minute_locked (const Metrics& metrics, const double minute) const +TempoMap::quarter_note_at_sample_rt (const samplepos_t sample) const { - const double ret = pulse_at_minute_locked (metrics, minute) * 4.0; - - return ret; -} + const double minute = minute_at_sample (sample); -double -TempoMap::quarter_note_at_frame_rt (const framepos_t frame) const -{ Glib::Threads::RWLock::ReaderLock lm (lock, Glib::Threads::TRY_LOCK); if (!lm.locked()) { - throw std::logic_error ("TempoMap::quarter_note_at_frame_rt() could not lock tempo map"); + throw std::logic_error ("TempoMap::quarter_note_at_sample_rt() could not lock tempo map"); } - const double ret = pulse_at_minute_locked (_metrics, minute_at_frame (frame)) * 4.0; - - return ret; + return pulse_at_minute_locked (_metrics, minute) * 4.0; } /** - * Returns the frame position corresponding to the supplied quarter-note beat. + * Returns the sample position corresponding to the supplied quarter-note beat. * * @param quarter_note the quarter-note position. - * @return the frame position of the supplied quarter-note. Ignores meter. + * @return the sample position of the supplied quarter-note. Ignores meter. * * */ -framepos_t -TempoMap::frame_at_quarter_note (const double quarter_note) const +samplepos_t +TempoMap::sample_at_quarter_note (const double quarter_note) const { - Glib::Threads::RWLock::ReaderLock lm (lock); - - const framepos_t ret = frame_at_minute (minute_at_quarter_note_locked (_metrics, quarter_note)); - - return ret; -} + double minute; + { + Glib::Threads::RWLock::ReaderLock lm (lock); -double -TempoMap::minute_at_quarter_note_locked (const Metrics& metrics, const double quarter_note) const -{ - const double ret = minute_at_pulse_locked (metrics, quarter_note / 4.0); + minute = minute_at_pulse_locked (_metrics, quarter_note / 4.0); + } - return ret; + return sample_at_minute (minute); } /** Returns the quarter-note beats corresponding to the supplied BBT (meter-based) beat. * @param beat The BBT (meter-based) beat. * @return The quarter-note position of the supplied BBT (meter-based) beat. * - * a quarter-note may be compared with and assigned to Evoral::Beats. + * a quarter-note may be compared with and assigned to Temporal::Beats. * */ double -TempoMap::quarter_note_at_beat (const double beat) +TempoMap::quarter_note_at_beat (const double beat) const { Glib::Threads::RWLock::ReaderLock lm (lock); - const double ret = quarter_note_at_beat_locked (_metrics, beat); - - return ret; -} - -double -TempoMap::quarter_note_at_beat_locked (const Metrics& metrics, const double beat) const -{ - const double ret = pulse_at_beat_locked (metrics, beat) * 4.0; - - return ret; + return pulse_at_beat_locked (_metrics, beat) * 4.0; } /** Returns the BBT (meter-based) beat position corresponding to the supplied quarter-note beats. * @param quarter_note The position in quarter-note beats. * @return the BBT (meter-based) beat position of the supplied quarter-note beats. * - * a quarter-note is the musical unit of Evoral::Beats. + * a quarter-note is the musical unit of Temporal::Beats. * */ double -TempoMap::beat_at_quarter_note (const double quarter_note) +TempoMap::beat_at_quarter_note (const double quarter_note) const { Glib::Threads::RWLock::ReaderLock lm (lock); - const double ret = beat_at_quarter_note_locked (_metrics, quarter_note); - - return ret; -} - -double -TempoMap::beat_at_quarter_note_locked (const Metrics& metrics, const double quarter_note) const -{ - - return beat_at_pulse_locked (metrics, quarter_note / 4.0); + return beat_at_pulse_locked (_metrics, quarter_note / 4.0); } -/** Returns the duration in frames between two supplied quarter-note beat positions. +/** Returns the duration in samples between two supplied quarter-note beat positions. * @param start the first position in quarter-note beats. * @param end the end position in quarter-note beats. - * @return the frame distance ober the quarter-note beats duration. + * @return the sample distance ober the quarter-note beats duration. * * use this rather than e.g. - * frame_at-quarter_note (end_beats) - frame_at_quarter_note (start_beats). - * frames_between_quarter_notes() doesn't round to audio frames as an intermediate step, + * sample_at-quarter_note (end_beats) - sample_at_quarter_note (start_beats). + * samples_between_quarter_notes() doesn't round to audio samples as an intermediate step, * */ -framecnt_t -TempoMap::frames_between_quarter_notes (const double start, const double end) const +samplecnt_t +TempoMap::samples_between_quarter_notes (const double start, const double end) const { - Glib::Threads::RWLock::ReaderLock lm (lock); + double minutes; - return frame_at_minute (minutes_between_quarter_notes_locked (_metrics, start, end)); + { + Glib::Threads::RWLock::ReaderLock lm (lock); + minutes = minutes_between_quarter_notes_locked (_metrics, start, end); + } + + return sample_at_minute (minutes); } double @@ -2392,15 +2482,15 @@ TempoMap::minutes_between_quarter_notes_locked (const Metrics& metrics, const do } double -TempoMap::quarter_notes_between_frames (const framecnt_t start, const framecnt_t end) const +TempoMap::quarter_notes_between_samples (const samplecnt_t start, const samplecnt_t end) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return quarter_notes_between_frames_locked (_metrics, start, end); + return quarter_notes_between_samples_locked (_metrics, start, end); } double -TempoMap::quarter_notes_between_frames_locked (const Metrics& metrics, const framecnt_t start, const framecnt_t end) const +TempoMap::quarter_notes_between_samples_locked (const Metrics& metrics, const samplecnt_t start, const samplecnt_t end) const { const TempoSection* prev_t = 0; @@ -2412,13 +2502,14 @@ TempoMap::quarter_notes_between_frames_locked (const Metrics& metrics, const fra if (!t->active()) { continue; } - if (prev_t && t->frame() > start) { + if (prev_t && t->sample() > start) { break; } prev_t = t; } } - const double start_qn = prev_t->pulse_at_frame (start); + assert (prev_t); + const double start_qn = prev_t->pulse_at_sample (start); for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { TempoSection* t; @@ -2428,13 +2519,13 @@ TempoMap::quarter_notes_between_frames_locked (const Metrics& metrics, const fra if (!t->active()) { continue; } - if (prev_t && t->frame() > end) { + if (prev_t && t->sample() > end) { break; } prev_t = t; } } - const double end_qn = prev_t->pulse_at_frame (end); + const double end_qn = prev_t->pulse_at_sample (end); return (end_qn - start_qn) * 4.0; } @@ -2459,8 +2550,8 @@ TempoMap::check_solved (const Metrics& metrics) const return false; } - /* precision check ensures tempo and frames align.*/ - if (t->frame() != frame_at_minute (prev_t->minute_at_ntpm (t->note_types_per_minute(), t->pulse()))) { + /* precision check ensures tempo and samples align.*/ + if (t->sample() != sample_at_minute (prev_t->minute_at_ntpm (prev_t->end_note_types_per_minute(), t->pulse()))) { if (!t->locked_to_meter()) { return false; } @@ -2469,8 +2560,8 @@ TempoMap::check_solved (const Metrics& metrics) const /* gradient limit - who knows what it should be? things are also ok (if a little chaotic) without this */ - if (fabs (prev_t->c_func()) > 1000.0) { - //std::cout << "c : " << prev_t->c_func() << std::endl; + if (fabs (prev_t->c()) > 1000.0) { + //std::cout << "c : " << prev_t->c() << std::endl; return false; } } @@ -2480,11 +2571,11 @@ TempoMap::check_solved (const Metrics& metrics) const if (!(*i)->is_tempo()) { m = static_cast (*i); if (prev_m && m->position_lock_style() == AudioTime) { - const TempoSection* t = &tempo_section_at_minute_locked (metrics, minute_at_frame (m->frame() - 1)); - const double nascent_m_minute = t->minute_at_pulse (m->pulse()); + const TempoSection* t = &tempo_section_at_minute_locked (metrics, minute_at_sample (m->sample() - 1)); + const samplepos_t nascent_m_sample = sample_at_minute (t->minute_at_pulse (m->pulse())); /* Here we check that a preceding section of music doesn't overlap a subsequent one. */ - if (t && (nascent_m_minute > m->minute() || nascent_m_minute < 0.0)) { + if (t && (nascent_m_sample > m->sample() || nascent_m_sample < 0)) { return false; } } @@ -2498,23 +2589,23 @@ TempoMap::check_solved (const Metrics& metrics) const } bool -TempoMap::set_active_tempos (const Metrics& metrics, const framepos_t& frame) +TempoMap::set_active_tempi (const Metrics& metrics, const samplepos_t sample) { for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { TempoSection* t; if ((*i)->is_tempo()) { t = static_cast (*i); - if (!t->movable()) { - t->set_active (true); - continue; - } - if (t->movable() && t->active () && t->position_lock_style() == AudioTime && t->frame() < frame) { - t->set_active (false); - t->set_pulse (0.0); - } else if (t->movable() && t->position_lock_style() == AudioTime && t->frame() > frame) { + if (t->locked_to_meter()) { t->set_active (true); - } else if (t->movable() && t->position_lock_style() == AudioTime && t->frame() == frame) { - return false; + } else if (t->position_lock_style() == AudioTime) { + if (t->sample() < sample) { + t->set_active (false); + t->set_pulse (-1.0); + } else if (t->sample() > sample) { + t->set_active (true); + } else if (t->sample() == sample) { + return false; + } } } } @@ -2527,19 +2618,20 @@ TempoMap::solve_map_minute (Metrics& imaginary, TempoSection* section, const dou TempoSection* prev_t = 0; TempoSection* section_prev = 0; double first_m_minute = 0.0; + const bool sml = section->locked_to_meter(); /* can't move a tempo before the first meter */ for (Metrics::iterator i = imaginary.begin(); i != imaginary.end(); ++i) { MeterSection* m; if (!(*i)->is_tempo()) { m = static_cast (*i); - if (!m->movable()) { + if (m->initial()) { first_m_minute = m->minute(); break; } } } - if (section->movable() && minute <= first_m_minute) { + if (!section->initial() && minute <= first_m_minute) { return false; } @@ -2554,21 +2646,36 @@ TempoMap::solve_map_minute (Metrics& imaginary, TempoSection* section, const dou if (!t->active()) { continue; } + if (prev_t) { + if (t == section) { - section_prev = prev_t; - if (t->locked_to_meter()) { - prev_t = t; - } continue; } - if (t->position_lock_style() == MusicTime) { - prev_t->set_c_func (prev_t->compute_c_func_pulse (t->note_types_per_minute(), t->pulse())); - t->set_minute (prev_t->minute_at_ntpm (t->note_types_per_minute(), t->pulse())); + + if (t->sample() == sample_at_minute (minute)) { + return false; + } + + const bool tlm = t->position_lock_style() == MusicTime; + + if (prev_t && !section_prev && ((sml && tlm && t->pulse() > section->pulse()) || (!tlm && t->minute() > minute))) { + section_prev = prev_t; + + section_prev->set_c (section_prev->compute_c_minute (section_prev->end_note_types_per_minute(), minute)); + if (!section->locked_to_meter()) { + section->set_pulse (section_prev->pulse_at_ntpm (section_prev->end_note_types_per_minute(), minute)); + } + prev_t = section; + } + + if (t->position_lock_style() == MusicTime) { + prev_t->set_c (prev_t->compute_c_pulse (prev_t->end_note_types_per_minute(), t->pulse())); + t->set_minute (prev_t->minute_at_ntpm (prev_t->end_note_types_per_minute(), t->pulse())); } else { - prev_t->set_c_func (prev_t->compute_c_func_minute (t->note_types_per_minute(), t->minute())); + prev_t->set_c (prev_t->compute_c_minute (prev_t->end_note_types_per_minute(), t->minute())); if (!t->locked_to_meter()) { - t->set_pulse (prev_t->pulse_at_ntpm (t->note_types_per_minute(), t->minute())); + t->set_pulse (prev_t->pulse_at_ntpm (prev_t->end_note_types_per_minute(), t->minute())); } } } @@ -2576,23 +2683,6 @@ TempoMap::solve_map_minute (Metrics& imaginary, TempoSection* section, const dou } } - if (section_prev) { - section_prev->set_c_func (section_prev->compute_c_func_minute (section->note_types_per_minute(), minute)); - if (!section->locked_to_meter()) { - section->set_pulse (section_prev->pulse_at_ntpm (section->note_types_per_minute(), minute)); - } - } - -#if (0) - recompute_tempi (imaginary); - - if (check_solved (imaginary)) { - return true; - } else { - dunp (imaginary, std::cout); - } -#endif - MetricSectionFrameSorter fcmp; imaginary.sort (fcmp); @@ -2620,7 +2710,7 @@ TempoMap::solve_map_pulse (Metrics& imaginary, TempoSection* section, const doub if (!t->active()) { continue; } - if (!t->movable()) { + if (t->initial()) { t->set_pulse (0.0); prev_t = t; continue; @@ -2630,13 +2720,14 @@ TempoMap::solve_map_pulse (Metrics& imaginary, TempoSection* section, const doub section_prev = prev_t; continue; } + if (t->position_lock_style() == MusicTime) { - prev_t->set_c_func (prev_t->compute_c_func_pulse (t->note_types_per_minute(), t->pulse())); - t->set_minute (prev_t->minute_at_ntpm (t->note_types_per_minute(), t->pulse())); + prev_t->set_c (prev_t->compute_c_pulse (prev_t->end_note_types_per_minute(), t->pulse())); + t->set_minute (prev_t->minute_at_ntpm (prev_t->end_note_types_per_minute(), t->pulse())); } else { - prev_t->set_c_func (prev_t->compute_c_func_minute (t->note_types_per_minute(), t->minute())); + prev_t->set_c (prev_t->compute_c_minute (prev_t->end_note_types_per_minute(), t->minute())); if (!t->locked_to_meter()) { - t->set_pulse (prev_t->pulse_at_ntpm (t->note_types_per_minute(), t->minute())); + t->set_pulse (prev_t->pulse_at_ntpm (prev_t->end_note_types_per_minute(), t->minute())); } } } @@ -2645,20 +2736,10 @@ TempoMap::solve_map_pulse (Metrics& imaginary, TempoSection* section, const doub } if (section_prev) { - section_prev->set_c_func (section_prev->compute_c_func_pulse (section->note_types_per_minute(), pulse)); - section->set_minute (section_prev->minute_at_ntpm (section->note_types_per_minute(), pulse)); + section_prev->set_c (section_prev->compute_c_pulse (section_prev->end_note_types_per_minute(), pulse)); + section->set_minute (section_prev->minute_at_ntpm (section_prev->end_note_types_per_minute(), pulse)); } -#if (0) - recompute_tempi (imaginary); - - if (check_solved (imaginary)) { - return true; - } else { - dunp (imaginary, std::cout); - } -#endif - MetricSectionSorter cmp; imaginary.sort (cmp); @@ -2683,15 +2764,15 @@ TempoMap::solve_map_pulse (Metrics& imaginary, TempoSection* section, const doub bool TempoMap::solve_map_minute (Metrics& imaginary, MeterSection* section, const double& minute) { - /* disallow moving first meter past any subsequent one, and any movable meter before the first one */ + /* disallow moving first meter past any subsequent one, and any initial meter before the first one */ const MeterSection* other = &meter_section_at_minute_locked (imaginary, minute); - if ((!section->movable() && other->movable()) || (!other->movable() && section->movable() && other->minute() >= minute)) { + if ((section->initial() && !other->initial()) || (other->initial() && !section->initial() && other->minute() >= minute)) { return false; } - if (!section->movable()) { + if (section->initial()) { /* lock the first tempo to our first meter */ - if (!set_active_tempos (imaginary, section->frame_at_minute (minute))) { + if (!set_active_tempi (imaginary, sample_at_minute (minute))) { return false; } } @@ -2702,7 +2783,7 @@ TempoMap::solve_map_minute (Metrics& imaginary, MeterSection* section, const dou TempoSection* t; if ((*ii)->is_tempo()) { t = static_cast (*ii); - if ((t->locked_to_meter() || !t->movable()) && t->minute() == section->minute()) { + if (t->locked_to_meter() && t->sample() == section->sample()) { meter_locked_tempo = t; break; } @@ -2723,7 +2804,7 @@ TempoMap::solve_map_minute (Metrics& imaginary, MeterSection* section, const dou if (!(*i)->is_tempo()) { m = static_cast (*i); if (m == section){ - if (prev_m && section->movable()) { + if (prev_m && !section->initial()) { const double beats = (pulse_at_minute_locked (imaginary, minute) - prev_m->pulse()) * prev_m->note_divisor(); if (beats + prev_m->beat() < section->beat()) { /* set the section pulse according to its musical position, @@ -2757,7 +2838,7 @@ TempoMap::solve_map_minute (Metrics& imaginary, MeterSection* section, const dou } } else { /* all is ok. set section's locked tempo if allowed. - possibly disallowed if there is an adjacent audio-locked tempo. + possibly disallow if there is an adjacent audio-locked tempo. XX this check could possibly go. its never actually happened here. */ MeterSection* meter_copy = const_cast @@ -2785,7 +2866,7 @@ TempoMap::solve_map_minute (Metrics& imaginary, MeterSection* section, const dou } } } else { - /* not movable (first meter atm) */ + /* initial (first meter atm) */ tempo_copy->set_minute (minute); tempo_copy->set_pulse (0.0); @@ -2850,11 +2931,17 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti MeterSection* m; if (!(*i)->is_tempo()) { m = static_cast (*i); + + if (m == section) { + continue; + } + pair b_bbt; double new_pulse = 0.0; if (prev_m && m->bbt().bars > when.bars && !section_prev){ section_prev = prev_m; + const double beats = (when.bars - section_prev->bbt().bars) * section_prev->divisions_per_bar(); const double pulse = (beats / section_prev->note_divisor()) + section_prev->pulse(); pair b_bbt = make_pair (beats + section_prev->beat(), when); @@ -2863,7 +2950,6 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti section->set_pulse (pulse); section->set_minute (minute_at_pulse_locked (imaginary, pulse)); prev_m = section; - continue; } if (m->position_lock_style() == AudioTime) { @@ -2873,7 +2959,7 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti TempoSection* t; if ((*ii)->is_tempo()) { t = static_cast (*ii); - if ((t->locked_to_meter() || !t->movable()) && t->frame() == m->frame()) { + if (t->locked_to_meter() && t->sample() == m->sample()) { meter_locked_tempo = t; break; } @@ -2885,14 +2971,21 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti } if (prev_m) { - const double beats = ((m->bbt().bars - prev_m->bbt().bars) * prev_m->divisions_per_bar()); + double beats = ((m->bbt().bars - prev_m->bbt().bars) * prev_m->divisions_per_bar()); if (beats + prev_m->beat() != m->beat()) { /* tempo/ meter change caused a change in beat (bar). */ + + /* the user has requested that the previous section of music overlaps this one. + we have no choice but to change the bar number here, as being locked to audio means + we must stay where we are on the timeline. + */ + beats = m->beat() - prev_m->beat(); b_bbt = make_pair (beats + prev_m->beat() , BBT_Time ((beats / prev_m->divisions_per_bar()) + prev_m->bbt().bars, 1, 0)); new_pulse = prev_m->pulse() + (beats / prev_m->note_divisor()); - } else if (m->movable()) { + + } else if (!m->initial()) { b_bbt = make_pair (m->beat(), m->bbt()); new_pulse = prev_m->pulse() + (beats / prev_m->note_divisor()); } @@ -2948,15 +3041,13 @@ TempoMap::solve_map_bbt (Metrics& imaginary, MeterSection* section, const BBT_Ti * to section's equivalent in copy. */ TempoSection* -TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, TempoSection* section) +TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, TempoSection* section) const { TempoSection* ret = 0; for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { - TempoSection* t; - MeterSection* m; if ((*i)->is_tempo()) { - t = static_cast (*i); + TempoSection const * const t = dynamic_cast (*i); if (t == section) { ret = new TempoSection (*t); copy.push_back (ret); @@ -2965,9 +3056,8 @@ TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, TempoSe TempoSection* cp = new TempoSection (*t); copy.push_back (cp); - } - if (!(*i)->is_tempo()) { - m = static_cast (*i); + } else { + MeterSection const * const m = dynamic_cast (*i); MeterSection* cp = new MeterSection (*m); copy.push_back (cp); } @@ -2977,21 +3067,17 @@ TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, TempoSe } MeterSection* -TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, MeterSection* section) +TempoMap::copy_metrics_and_point (const Metrics& metrics, Metrics& copy, MeterSection* section) const { MeterSection* ret = 0; for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { - TempoSection* t; - MeterSection* m; if ((*i)->is_tempo()) { - t = static_cast (*i); + TempoSection const * const t = dynamic_cast (*i); TempoSection* cp = new TempoSection (*t); copy.push_back (cp); - } - - if (!(*i)->is_tempo()) { - m = static_cast (*i); + } else { + MeterSection const * const m = dynamic_cast (*i); if (m == section) { ret = new MeterSection (*m); copy.push_back (ret); @@ -3038,17 +3124,17 @@ TempoMap::can_solve_bbt (TempoSection* ts, const BBT_Time& bbt) } /** -* This is for a gui that needs to know the pulse or frame of a tempo section if it were to be moved to some bbt time, +* This is for a gui that needs to know the pulse or sample of a tempo section if it were to be moved to some bbt time, * taking any possible reordering as a consequence of this into account. * @param section - the section to be altered * @param bbt - the BBT time where the altered tempo will fall -* @return returns - the position in pulses and frames (as a pair) where the new tempo section will lie. +* @return returns - the position in pulses and samples (as a pair) where the new tempo section will lie. */ -pair +pair TempoMap::predict_tempo_position (TempoSection* section, const BBT_Time& bbt) { Metrics future_map; - pair ret = make_pair (0.0, 0); + pair ret = make_pair (0.0, 0); Glib::Threads::RWLock::ReaderLock lm (lock); @@ -3056,12 +3142,16 @@ TempoMap::predict_tempo_position (TempoSection* section, const BBT_Time& bbt) const double beat = beat_at_bbt_locked (future_map, bbt); + if (section->position_lock_style() == AudioTime) { + tempo_copy->set_position_lock_style (MusicTime); + } + if (solve_map_pulse (future_map, tempo_copy, pulse_at_beat_locked (future_map, beat))) { ret.first = tempo_copy->pulse(); - ret.second = tempo_copy->frame(); + ret.second = tempo_copy->sample(); } else { ret.first = section->pulse(); - ret.second = section->frame(); + ret.second = section->sample(); } Metrics::const_iterator d = future_map.begin(); @@ -3074,35 +3164,35 @@ TempoMap::predict_tempo_position (TempoSection* section, const BBT_Time& bbt) /** moves a TempoSection to a specified position. * @param ts - the section to be moved - * @param frame - the new position in frames for the tempo + * @param sample - the new position in samples for the tempo * @param sub_num - the snap division to use if using musical time. * - * if sub_num is non-zero, the frame position is used to calculate an exact + * if sub_num is non-zero, the sample position is used to calculate an exact * musical position. * sub_num | effect * -1 | snap to bars (meter-based) - * 0 | no snap - use audio frame for musical position + * 0 | no snap - use audio sample for musical position * 1 | snap to meter-based (BBT) beat * >1 | snap to quarter-note subdivision (i.e. 4 will snap to sixteenth notes) * * this follows the snap convention in the gui. - * if sub_num is zero, the musical position will be taken from the supplied frame. + * if sub_num is zero, the musical position will be taken from the supplied sample. */ void -TempoMap::gui_move_tempo (TempoSection* ts, const framepos_t& frame, const int& sub_num) +TempoMap::gui_set_tempo_position (TempoSection* ts, const samplepos_t sample, const int& sub_num) { Metrics future_map; if (ts->position_lock_style() == MusicTime) { { - /* if we're snapping to a musical grid, set the pulse exactly instead of via the supplied frame. */ + /* if we're snapping to a musical grid, set the pulse exactly instead of via the supplied sample. */ Glib::Threads::RWLock::WriterLock lm (lock); TempoSection* tempo_copy = copy_metrics_and_point (_metrics, future_map, ts); tempo_copy->set_position_lock_style (AudioTime); - if (solve_map_minute (future_map, tempo_copy, minute_at_frame (frame))) { - const double beat = exact_beat_at_frame_locked (future_map, frame, sub_num); + if (solve_map_minute (future_map, tempo_copy, minute_at_sample (sample))) { + const double beat = exact_beat_at_sample_locked (future_map, sample, sub_num); const double pulse = pulse_at_beat_locked (future_map, beat); if (solve_map_pulse (future_map, tempo_copy, pulse)) { @@ -3118,30 +3208,25 @@ TempoMap::gui_move_tempo (TempoSection* ts, const framepos_t& frame, const int& Glib::Threads::RWLock::WriterLock lm (lock); TempoSection* tempo_copy = copy_metrics_and_point (_metrics, future_map, ts); - if (solve_map_minute (future_map, tempo_copy, minute_at_frame (frame))) { - if (sub_num != 0) { - /* We're moving the object that defines the grid while snapping to it... - * Placing the ts at the beat corresponding to the requested frame may shift the - * grid in such a way that the mouse is left hovering over a completerly different division, - * causing jittering when the mouse next moves (esp. large tempo deltas). - * To avoid this, place the ts at the requested frame in a dummy map - * then find the closest beat subdivision to that frame in the dummy. - * This alters the snap behaviour slightly in that we snap to beat divisions - * in the future map rather than the existing one. - */ - const double beat = exact_beat_at_frame_locked (future_map, frame, sub_num); - const double pulse = pulse_at_beat_locked (future_map, beat); - - if (solve_map_pulse (future_map, tempo_copy, pulse)) { - /* snapping to a grid. force MusicTime temporarily. */ - ts->set_position_lock_style (MusicTime); - solve_map_pulse (_metrics, ts, pulse); - ts->set_position_lock_style (AudioTime); - recompute_meters (_metrics); - } - } else { - solve_map_minute (_metrics, ts, minute_at_frame (frame)); + if (sub_num != 0) { + /* We're moving the object that defines the grid while snapping to it... + * Placing the ts at the beat corresponding to the requested sample may shift the + * grid in such a way that the mouse is left hovering over a completerly different division, + * causing jittering when the mouse next moves (esp. large tempo deltas). + * We fudge around this by doing this in the musical domain and then swapping back for the recompute. + */ + const double qn = exact_qn_at_sample_locked (_metrics, sample, sub_num); + tempo_copy->set_position_lock_style (MusicTime); + if (solve_map_pulse (future_map, tempo_copy, qn / 4.0)) { + ts->set_position_lock_style (MusicTime); + solve_map_pulse (_metrics, ts, qn / 4.0); + ts->set_position_lock_style (AudioTime); + recompute_meters (_metrics); + } + } else { + if (solve_map_minute (future_map, tempo_copy, minute_at_sample (sample))) { + solve_map_minute (_metrics, ts, minute_at_sample (sample)); recompute_meters (_metrics); } } @@ -3154,19 +3239,19 @@ TempoMap::gui_move_tempo (TempoSection* ts, const framepos_t& frame, const int& ++d; } - MetricPositionChanged (); // Emit Signal + MetricPositionChanged (PropertyChange ()); // Emit Signal } /** moves a MeterSection to a specified position. * @param ms - the section to be moved - * @param frame - the new position in frames for the meter + * @param sample - the new position in samples for the meter * * as a meter cannot snap to anything but bars, - * the supplied frame is rounded to the nearest bar, possibly + * the supplied sample is rounded to the nearest bar, possibly * leaving the meter position unchanged. */ void -TempoMap::gui_move_meter (MeterSection* ms, const framepos_t& frame) +TempoMap::gui_set_meter_position (MeterSection* ms, const samplepos_t sample) { Metrics future_map; @@ -3176,8 +3261,8 @@ TempoMap::gui_move_meter (MeterSection* ms, const framepos_t& frame) Glib::Threads::RWLock::WriterLock lm (lock); MeterSection* copy = copy_metrics_and_point (_metrics, future_map, ms); - if (solve_map_minute (future_map, copy, minute_at_frame (frame))) { - solve_map_minute (_metrics, ms, minute_at_frame (frame)); + if (solve_map_minute (future_map, copy, minute_at_sample (sample))) { + solve_map_minute (_metrics, ms, minute_at_sample (sample)); recompute_tempi (_metrics); } } @@ -3186,7 +3271,7 @@ TempoMap::gui_move_meter (MeterSection* ms, const framepos_t& frame) Glib::Threads::RWLock::WriterLock lm (lock); MeterSection* copy = copy_metrics_and_point (_metrics, future_map, ms); - const double beat = beat_at_minute_locked (_metrics, minute_at_frame (frame)); + const double beat = beat_at_minute_locked (_metrics, minute_at_sample (sample)); const Timecode::BBT_Time bbt = bbt_at_beat_locked (_metrics, beat); if (solve_map_bbt (future_map, copy, bbt)) { @@ -3202,7 +3287,7 @@ TempoMap::gui_move_meter (MeterSection* ms, const framepos_t& frame) ++d; } - MetricPositionChanged (); // Emit Signal + MetricPositionChanged (PropertyChange ()); // Emit Signal } bool @@ -3213,11 +3298,40 @@ TempoMap::gui_change_tempo (TempoSection* ts, const Tempo& bpm) { Glib::Threads::RWLock::WriterLock lm (lock); TempoSection* tempo_copy = copy_metrics_and_point (_metrics, future_map, ts); - tempo_copy->set_note_types_per_minute (bpm.note_types_per_minute()); + + if (tempo_copy->type() == TempoSection::Constant) { + tempo_copy->set_end_note_types_per_minute (bpm.note_types_per_minute()); + tempo_copy->set_note_types_per_minute (bpm.note_types_per_minute()); + } else { + tempo_copy->set_note_types_per_minute (bpm.note_types_per_minute()); + tempo_copy->set_end_note_types_per_minute (bpm.end_note_types_per_minute()); + } + + if (ts->clamped()) { + TempoSection* prev = 0; + if ((prev = previous_tempo_section_locked (future_map, tempo_copy)) != 0) { + prev->set_end_note_types_per_minute (tempo_copy->note_types_per_minute()); + } + } + recompute_tempi (future_map); if (check_solved (future_map)) { - ts->set_note_types_per_minute (bpm.note_types_per_minute()); + if (ts->type() == TempoSection::Constant) { + ts->set_end_note_types_per_minute (bpm.note_types_per_minute()); + ts->set_note_types_per_minute (bpm.note_types_per_minute()); + } else { + ts->set_end_note_types_per_minute (bpm.end_note_types_per_minute()); + ts->set_note_types_per_minute (bpm.note_types_per_minute()); + } + + if (ts->clamped()) { + TempoSection* prev = 0; + if ((prev = previous_tempo_section_locked (_metrics, ts)) != 0) { + prev->set_end_note_types_per_minute (ts->note_types_per_minute()); + } + } + recompute_map (_metrics); can_solve = true; } @@ -3229,20 +3343,21 @@ TempoMap::gui_change_tempo (TempoSection* ts, const Tempo& bpm) ++d; } if (can_solve) { - MetricPositionChanged (); // Emit Signal + MetricPositionChanged (PropertyChange ()); // Emit Signal } + return can_solve; } void -TempoMap::gui_dilate_tempo (TempoSection* ts, const framepos_t& frame, const framepos_t& end_frame) +TempoMap::gui_stretch_tempo (TempoSection* ts, const samplepos_t sample, const samplepos_t end_sample, const double start_qnote, const double end_qnote) { /* Ts (future prev_t) Tnext | | | [drag^] | |----------|---------- - e_f qn_beats(frame) + e_f qn_beats(sample) */ Metrics future_map; @@ -3254,402 +3369,565 @@ TempoMap::gui_dilate_tempo (TempoSection* ts, const framepos_t& frame, const fra return; } - TempoSection* prev_t = copy_metrics_and_point (_metrics, future_map, ts); - TempoSection* prev_to_prev_t = 0; - const frameoffset_t fr_off = end_frame - frame; - - if (prev_t && prev_t->pulse() > 0.0) { - prev_to_prev_t = const_cast(&tempo_section_at_minute_locked (future_map, minute_at_frame (prev_t->frame() - 1))); - } - - TempoSection* next_t = 0; - for (Metrics::iterator i = future_map.begin(); i != future_map.end(); ++i) { - TempoSection* t = 0; - if ((*i)->is_tempo()) { - t = static_cast (*i); - if (t->frame() > ts->frame()) { - next_t = t; - break; - } - } - } - /* minimum allowed measurement distance in frames */ - const framepos_t min_dframe = 2; - - /* the change in frames is the result of changing the slope of at most 2 previous tempo sections. - constant to constant is straightforward, as the tempo prev to prev_t has constant slope. - */ - double contribution = 0.0; + TempoSection* ts_copy = copy_metrics_and_point (_metrics, future_map, ts); - if (next_t && prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) { - contribution = (prev_t->frame() - prev_to_prev_t->frame()) / (double) (next_t->frame() - prev_to_prev_t->frame()); + if (!ts_copy) { + return; } - const frameoffset_t prev_t_frame_contribution = fr_off - (contribution * (double) fr_off); - - const double start_pulse = prev_t->pulse_at_minute (minute_at_frame (frame)); - const double end_pulse = prev_t->pulse_at_minute (minute_at_frame (end_frame)); + /* minimum allowed measurement distance in samples */ + samplepos_t const min_dframe = 2; double new_bpm; + if (ts_copy->clamped()) { + TempoSection* next_t = next_tempo_section_locked (future_map, ts_copy); + TempoSection* prev_to_ts_copy = previous_tempo_section_locked (future_map, ts_copy); + /* the change in samples is the result of changing the slope of at most 2 previous tempo sections. + constant to constant is straightforward, as the tempo prev to ts_copy has constant slope. + */ double contribution = 0.0; + if (next_t && prev_to_ts_copy && prev_to_ts_copy->type() == TempoSection::Ramp) { + contribution = (ts_copy->pulse() - prev_to_ts_copy->pulse()) / (double) (next_t->pulse() - prev_to_ts_copy->pulse()); + } + samplepos_t const fr_off = end_sample - sample; + sampleoffset_t const ts_copy_sample_contribution = fr_off - (contribution * (double) fr_off); - if (prev_t->type() == TempoSection::Constant || prev_t->c_func() == 0.0) { - - if (prev_t->position_lock_style() == MusicTime) { - if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) { - if (frame > prev_to_prev_t->frame() + min_dframe && (frame + prev_t_frame_contribution) > prev_to_prev_t->frame() + min_dframe) { - - new_bpm = prev_t->note_types_per_minute() * ((frame - prev_to_prev_t->frame()) - / (double) ((frame + prev_t_frame_contribution) - prev_to_prev_t->frame())); - } else { - new_bpm = prev_t->note_types_per_minute(); - } - } else { - /* prev to prev is irrelevant */ - - if (start_pulse > prev_t->pulse() && end_pulse > prev_t->pulse()) { - new_bpm = prev_t->note_types_per_minute() * ((start_pulse - prev_t->pulse()) / (end_pulse - prev_t->pulse())); - } else { - new_bpm = prev_t->note_types_per_minute(); - } - } + if (sample > prev_to_ts_copy->sample() + min_dframe && (sample + ts_copy_sample_contribution) > prev_to_ts_copy->sample() + min_dframe) { + new_bpm = ts_copy->note_types_per_minute() * ((start_qnote - (prev_to_ts_copy->pulse() * 4.0)) + / (end_qnote - (prev_to_ts_copy->pulse() * 4.0))); } else { - /* AudioTime */ - if (prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) { - if (frame > prev_to_prev_t->frame() + min_dframe && end_frame > prev_to_prev_t->frame() + min_dframe) { - - new_bpm = prev_t->note_types_per_minute() * ((frame - prev_to_prev_t->frame()) - / (double) ((end_frame) - prev_to_prev_t->frame())); - } else { - new_bpm = prev_t->note_types_per_minute(); - } - } else { - /* prev_to_prev_t is irrelevant */ - - if (frame > prev_t->frame() + min_dframe && end_frame > prev_t->frame() + min_dframe) { - new_bpm = prev_t->note_types_per_minute() * ((frame - prev_t->frame()) / (double) (end_frame - prev_t->frame())); - } else { - new_bpm = prev_t->note_types_per_minute(); - } - } + new_bpm = ts_copy->note_types_per_minute(); } } else { + if (sample > ts_copy->sample() + min_dframe && end_sample > ts_copy->sample() + min_dframe) { - double frame_ratio = 1.0; - double pulse_ratio = 1.0; - const double pulse_pos = frame; - - if (prev_to_prev_t) { - if (pulse_pos > prev_to_prev_t->frame() + min_dframe && (pulse_pos - fr_off) > prev_to_prev_t->frame() + min_dframe) { - frame_ratio = (((pulse_pos - fr_off) - prev_to_prev_t->frame()) / (double) ((pulse_pos) - prev_to_prev_t->frame())); - } - if (end_pulse > prev_to_prev_t->pulse() && start_pulse > prev_to_prev_t->pulse()) { - pulse_ratio = ((start_pulse - prev_to_prev_t->pulse()) / (end_pulse - prev_to_prev_t->pulse())); - } + new_bpm = ts_copy->note_types_per_minute() * ((sample - ts_copy->sample()) + / (double) (end_sample - ts_copy->sample())); } else { - if (pulse_pos > prev_t->frame() + min_dframe && (pulse_pos - fr_off) > prev_t->frame() + min_dframe) { - frame_ratio = (((pulse_pos - fr_off) - prev_t->frame()) / (double) ((pulse_pos) - prev_t->frame())); - } - pulse_ratio = (start_pulse / end_pulse); + new_bpm = ts_copy->note_types_per_minute(); } - new_bpm = prev_t->note_types_per_minute() * (pulse_ratio * frame_ratio); - } + new_bpm = min (new_bpm, (double) 1000.0); + } /* don't clamp and proceed here. testing has revealed that this can go negative, which is an entirely different thing to just being too low. */ + if (new_bpm < 0.5) { - return; + goto out; } - new_bpm = min (new_bpm, (double) 1000.0); - prev_t->set_note_types_per_minute (new_bpm); + + ts_copy->set_note_types_per_minute (new_bpm); + + if (ts_copy->clamped()) { + TempoSection* prev = 0; + if ((prev = previous_tempo_section_locked (future_map, ts_copy)) != 0) { + prev->set_end_note_types_per_minute (ts_copy->note_types_per_minute()); + } + } + recompute_tempi (future_map); recompute_meters (future_map); if (check_solved (future_map)) { ts->set_note_types_per_minute (new_bpm); + + if (ts->clamped()) { + TempoSection* prev = 0; + if ((prev = previous_tempo_section_locked (_metrics, ts)) != 0) { + prev->set_end_note_types_per_minute (ts->note_types_per_minute()); + } + } + recompute_tempi (_metrics); recompute_meters (_metrics); } } + +out: Metrics::const_iterator d = future_map.begin(); while (d != future_map.end()) { delete (*d); ++d; } + MetricPositionChanged (PropertyChange ()); // Emit Signal - MetricPositionChanged (); // Emit Signal -} - -/** Returns the exact bbt-based beat corresponding to the bar, beat or quarter note subdivision nearest to - * the supplied frame, possibly returning a negative value. - * - * @param frame The session frame position. - * @param sub_num The subdivision to use when rounding the beat. - * A value of -1 indicates rounding to BBT bar. 1 indicates rounding to BBT beats. - * Positive integers indicate quarter note (non BBT) divisions. - * 0 indicates that the returned beat should not be rounded (equivalent to quarter_note_at_frame()). - * @return The beat position of the supplied frame. - * - * when working to a musical grid, the use of sub_nom indicates that - * the position should be interpreted musically. - * - * it effectively snaps to meter bars, meter beats or quarter note divisions - * (as per current gui convention) and returns a musical position independent of frame rate. - * - * If the supplied frame lies before the first meter, the return will be negative, - * in which case the returned beat uses the first meter (for BBT subdivisions) and - * the continuation of the tempo curve (backwards). - * - * This function is sensitive to tempo and meter. - */ -double -TempoMap::exact_beat_at_frame (const framepos_t& frame, const int32_t sub_num) -{ - Glib::Threads::RWLock::ReaderLock lm (lock); - return exact_beat_at_frame_locked (_metrics, frame, sub_num); } - -double -TempoMap::exact_beat_at_frame_locked (const Metrics& metrics, const framepos_t& frame, const int32_t divisions) +void +TempoMap::gui_stretch_tempo_end (TempoSection* ts, const samplepos_t sample, const samplepos_t end_sample) { - return beat_at_pulse_locked (_metrics, exact_qn_at_frame_locked (metrics, frame, divisions) / 4.0); -} + /* + Ts (future prev_t) Tnext + | | + | [drag^] | + |----------|---------- + e_f qn_beats(sample) + */ -/** Returns the exact quarter note corresponding to the bar, beat or quarter note subdivision nearest to - * the supplied frame, possibly returning a negative value. - * - * @param frame The session frame position. - * @param sub_num The subdivision to use when rounding the quarter note. - * A value of -1 indicates rounding to BBT bar. 1 indicates rounding to BBT beats. - * Positive integers indicate quarter note (non BBT) divisions. - * 0 indicates that the returned quarter note should not be rounded (equivalent to quarter_note_at_frame()). - * @return The quarter note position of the supplied frame. - * - * When working to a musical grid, the use of sub_nom indicates that - * the frame position should be interpreted musically. - * - * it effectively snaps to meter bars, meter beats or quarter note divisions - * (as per current gui convention) and returns a musical position independent of frame rate. - * - * If the supplied frame lies before the first meter, the return will be negative, - * in which case the returned quarter note uses the first meter (for BBT subdivisions) and - * the continuation of the tempo curve (backwards). - * - * This function is tempo-sensitive. - */ -double -TempoMap::exact_qn_at_frame (const framepos_t& frame, const int32_t sub_num) -{ - Glib::Threads::RWLock::ReaderLock lm (lock); + Metrics future_map; - return exact_qn_at_frame_locked (_metrics, frame, sub_num); -} + { + Glib::Threads::RWLock::WriterLock lm (lock); -double -TempoMap::exact_qn_at_frame_locked (const Metrics& metrics, const framepos_t& frame, const int32_t sub_num) -{ - double qn = quarter_note_at_minute_locked (metrics, minute_at_frame (frame)); + if (!ts) { + return; + } - if (sub_num > 1) { - qn = floor (qn) + (floor (((qn - floor (qn)) * (double) sub_num) + 0.5) / sub_num); - } else if (sub_num == 1) { - /* the gui requested exact musical (BBT) beat */ - qn = quarter_note_at_beat_locked (metrics, floor (beat_at_minute_locked (metrics, minute_at_frame (frame)) + 0.5)); - } else if (sub_num == -1) { - /* snap to bar */ - Timecode::BBT_Time bbt = bbt_at_pulse_locked (metrics, qn / 4.0); - bbt.beats = 1; - bbt.ticks = 0; + TempoSection* prev_t = copy_metrics_and_point (_metrics, future_map, ts); - const double prev_b = pulse_at_bbt_locked (metrics, bbt) * 4.0; - ++bbt.bars; - const double next_b = pulse_at_bbt_locked (metrics, bbt) * 4.0; + if (!prev_t) { + return; + } - if ((qn - prev_b) > (next_b - prev_b) / 2.0) { - qn = next_b; + /* minimum allowed measurement distance in samples */ + samplepos_t const min_dframe = 2; + double new_bpm; + + if (sample > prev_t->sample() + min_dframe && end_sample > prev_t->sample() + min_dframe) { + new_bpm = prev_t->end_note_types_per_minute() * ((prev_t->sample() - sample) + / (double) (prev_t->sample() - end_sample)); } else { - qn = prev_b; + new_bpm = prev_t->end_note_types_per_minute(); } - } - - return qn; -} -/** returns the frame duration of the supplied BBT time at a specified frame position in the tempo map. - * @param pos the frame position in the tempo map. - * @param bbt the distance in BBT time from pos to calculate. - * @param dir the rounding direction.. - * @return the duration in frames between pos and bbt -*/ -framecnt_t -TempoMap::bbt_duration_at (framepos_t pos, const BBT_Time& bbt, int dir) -{ - Glib::Threads::RWLock::ReaderLock lm (lock); + new_bpm = min (new_bpm, (double) 1000.0); - BBT_Time pos_bbt = bbt_at_minute_locked (_metrics, minute_at_frame (pos)); - const framecnt_t offset = frame_at_minute (minute_at_bbt_locked (_metrics, pos_bbt)); - const double divisions = meter_section_at_minute_locked (_metrics, minute_at_frame (pos)).divisions_per_bar(); + if (new_bpm < 0.5) { + goto out; + } - if (dir > 0) { - pos_bbt.bars += bbt.bars; + prev_t->set_end_note_types_per_minute (new_bpm); - pos_bbt.ticks += bbt.ticks; - if ((double) pos_bbt.ticks > BBT_Time::ticks_per_beat) { - pos_bbt.beats += 1; - pos_bbt.ticks -= BBT_Time::ticks_per_beat; + TempoSection* next = 0; + if ((next = next_tempo_section_locked (future_map, prev_t)) != 0) { + if (next->clamped()) { + next->set_note_types_per_minute (prev_t->end_note_types_per_minute()); + } } - pos_bbt.beats += bbt.beats; - if ((double) pos_bbt.beats > divisions) { - pos_bbt.bars += 1; - pos_bbt.beats -= divisions; - } + recompute_tempi (future_map); + recompute_meters (future_map); - return frame_at_minute (minute_at_bbt_locked (_metrics, pos_bbt)) - offset; - } else { - pos_bbt.bars -= bbt.bars; + if (check_solved (future_map)) { + ts->set_end_note_types_per_minute (new_bpm); - if (pos_bbt.ticks < bbt.ticks) { - if (pos_bbt.beats == 1) { - pos_bbt.bars--; - pos_bbt.beats = divisions; - } else { - pos_bbt.beats--; + TempoSection* true_next = 0; + if ((true_next = next_tempo_section_locked (_metrics, ts)) != 0) { + if (true_next->clamped()) { + true_next->set_note_types_per_minute (ts->end_note_types_per_minute()); + } } - pos_bbt.ticks = BBT_Time::ticks_per_beat - (bbt.ticks - pos_bbt.ticks); - } else { - pos_bbt.ticks -= bbt.ticks; - } - if (pos_bbt.beats <= bbt.beats) { - pos_bbt.bars--; - pos_bbt.beats = divisions - (bbt.beats - pos_bbt.beats); - } else { - pos_bbt.beats -= bbt.beats; + recompute_tempi (_metrics); + recompute_meters (_metrics); } - - return offset - frame_at_minute (minute_at_bbt_locked (_metrics, pos_bbt)); } - return 0; -} -framepos_t -TempoMap::round_to_bar (framepos_t fr, RoundMode dir) -{ - return round_to_type (fr, dir, Bar); -} +out: + Metrics::const_iterator d = future_map.begin(); + while (d != future_map.end()) { + delete (*d); + ++d; + } -framepos_t -TempoMap::round_to_beat (framepos_t fr, RoundMode dir) -{ - return round_to_type (fr, dir, Beat); + MetricPositionChanged (PropertyChange ()); // Emit Signal } -framepos_t -TempoMap::round_to_beat_subdivision (framepos_t fr, int sub_num, RoundMode dir) +bool +TempoMap::gui_twist_tempi (TempoSection* ts, const Tempo& bpm, const samplepos_t sample, const samplepos_t end_sample) { - Glib::Threads::RWLock::ReaderLock lm (lock); - uint32_t ticks = (uint32_t) floor (max (0.0, beat_at_minute_locked (_metrics, minute_at_frame (fr))) * BBT_Time::ticks_per_beat); - uint32_t beats = (uint32_t) floor (ticks / BBT_Time::ticks_per_beat); - uint32_t ticks_one_subdivisions_worth = (uint32_t) BBT_Time::ticks_per_beat / sub_num; + TempoSection* next_t = 0; + TempoSection* next_to_next_t = 0; + Metrics future_map; + bool can_solve = false; - ticks -= beats * BBT_Time::ticks_per_beat; + /* minimum allowed measurement distance in samples */ + samplepos_t const min_dframe = 2; - if (dir > 0) { - /* round to next (or same iff dir == RoundUpMaybe) */ + { + Glib::Threads::RWLock::WriterLock lm (lock); + if (!ts) { + return false; + } - uint32_t mod = ticks % ticks_one_subdivisions_worth; + TempoSection* tempo_copy = copy_metrics_and_point (_metrics, future_map, ts); + TempoSection* prev_to_prev_t = 0; + const sampleoffset_t fr_off = end_sample - sample; - if (mod == 0 && dir == RoundUpMaybe) { - /* right on the subdivision, which is fine, so do nothing */ + if (!tempo_copy) { + return false; + } - } else if (mod == 0) { - /* right on the subdivision, so the difference is just the subdivision ticks */ - ticks += ticks_one_subdivisions_worth; + if (tempo_copy->pulse() > 0.0) { + prev_to_prev_t = const_cast(&tempo_section_at_minute_locked (future_map, minute_at_sample (tempo_copy->sample() - 1))); + } - } else { - /* not on subdivision, compute distance to next subdivision */ + for (Metrics::const_iterator i = future_map.begin(); i != future_map.end(); ++i) { + if ((*i)->is_tempo() && (*i)->minute() > tempo_copy->minute()) { + next_t = static_cast (*i); + break; + } + } - ticks += ticks_one_subdivisions_worth - mod; + if (!next_t) { + return false; } - if (ticks >= BBT_Time::ticks_per_beat) { - ticks -= BBT_Time::ticks_per_beat; + for (Metrics::const_iterator i = future_map.begin(); i != future_map.end(); ++i) { + if ((*i)->is_tempo() && (*i)->minute() > next_t->minute()) { + next_to_next_t = static_cast (*i); + break; + } } - } else if (dir < 0) { - /* round to previous (or same iff dir == RoundDownMaybe) */ + if (!next_to_next_t) { + return false; + } - uint32_t difference = ticks % ticks_one_subdivisions_worth; + double prev_contribution = 0.0; - if (difference == 0 && dir == RoundDownAlways) { - /* right on the subdivision, but force-rounding down, - so the difference is just the subdivision ticks */ - difference = ticks_one_subdivisions_worth; + if (next_t && prev_to_prev_t && prev_to_prev_t->type() == TempoSection::Ramp) { + prev_contribution = (tempo_copy->sample() - prev_to_prev_t->sample()) / (double) (next_t->sample() - prev_to_prev_t->sample()); } - if (ticks < difference) { - ticks = BBT_Time::ticks_per_beat - ticks; + const sampleoffset_t tempo_copy_sample_contribution = fr_off - (prev_contribution * (double) fr_off); + + + samplepos_t old_tc_minute = tempo_copy->minute(); + double old_next_minute = next_t->minute(); + double old_next_to_next_minute = next_to_next_t->minute(); + + double new_bpm; + double new_next_bpm; + double new_copy_end_bpm; + + if (sample > tempo_copy->sample() + min_dframe && (sample + tempo_copy_sample_contribution) > tempo_copy->sample() + min_dframe) { + new_bpm = tempo_copy->note_types_per_minute() * ((sample - tempo_copy->sample()) + / (double) (end_sample - tempo_copy->sample())); } else { - ticks -= difference; + new_bpm = tempo_copy->note_types_per_minute(); } - } else { - /* round to nearest */ - double rem; + /* don't clamp and proceed here. + testing has revealed that this can go negative, + which is an entirely different thing to just being too low. + */ + if (new_bpm < 0.5) { + return false; + } - /* compute the distance to the previous and next subdivision */ + new_bpm = min (new_bpm, (double) 1000.0); - if ((rem = fmod ((double) ticks, (double) ticks_one_subdivisions_worth)) > ticks_one_subdivisions_worth/2.0) { + tempo_copy->set_note_types_per_minute (new_bpm); + if (tempo_copy->type() == TempoSection::Constant) { + tempo_copy->set_end_note_types_per_minute (new_bpm); + } - /* closer to the next subdivision, so shift forward */ + recompute_tempi (future_map); - ticks = lrint (ticks + (ticks_one_subdivisions_worth - rem)); + if (check_solved (future_map)) { - DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("moved forward to %1\n", ticks)); + if (!next_t) { + return false; + } - if (ticks > BBT_Time::ticks_per_beat) { - ++beats; - ticks -= BBT_Time::ticks_per_beat; - DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("fold beat to %1\n", beats)); + ts->set_note_types_per_minute (new_bpm); + if (ts->type() == TempoSection::Constant) { + ts->set_end_note_types_per_minute (new_bpm); } - } else if (rem > 0) { + recompute_map (_metrics); - /* closer to previous subdivision, so shift backward */ + can_solve = true; + } - if (rem > ticks) { - if (beats == 0) { - /* can't go backwards past zero, so ... */ - return 0; + if (next_t->type() == TempoSection::Constant || next_t->c() == 0.0) { + if (sample > tempo_copy->sample() + min_dframe && end_sample > tempo_copy->sample() + min_dframe) { + + new_next_bpm = next_t->note_types_per_minute() * ((next_to_next_t->minute() - old_next_minute) + / (double) ((old_next_to_next_minute) - old_next_minute)); + + } else { + new_next_bpm = next_t->note_types_per_minute(); + } + + next_t->set_note_types_per_minute (new_next_bpm); + recompute_tempi (future_map); + + if (check_solved (future_map)) { + for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) { + if ((*i)->is_tempo() && (*i)->minute() > ts->minute()) { + next_t = static_cast (*i); + break; + } } - /* step back to previous beat */ - --beats; - ticks = lrint (BBT_Time::ticks_per_beat - rem); - DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("step back beat to %1\n", beats)); + + if (!next_t) { + return false; + } + next_t->set_note_types_per_minute (new_next_bpm); + recompute_map (_metrics); + can_solve = true; + } + } else { + double next_sample_ratio = 1.0; + double copy_sample_ratio = 1.0; + + if (next_to_next_t) { + next_sample_ratio = (next_to_next_t->minute() - old_next_minute) / (old_next_to_next_minute - old_next_minute); + + copy_sample_ratio = ((old_tc_minute - next_t->minute()) / (double) (old_tc_minute - old_next_minute)); + } + + new_next_bpm = next_t->note_types_per_minute() * next_sample_ratio; + new_copy_end_bpm = tempo_copy->end_note_types_per_minute() * copy_sample_ratio; + + tempo_copy->set_end_note_types_per_minute (new_copy_end_bpm); + + if (next_t->clamped()) { + next_t->set_note_types_per_minute (new_copy_end_bpm); } else { - ticks = lrint (ticks - rem); - DEBUG_TRACE (DEBUG::SnapBBT, string_compose ("moved backward to %1\n", ticks)); + next_t->set_note_types_per_minute (new_next_bpm); } + + recompute_tempi (future_map); + + if (check_solved (future_map)) { + for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) { + if ((*i)->is_tempo() && (*i)->minute() > ts->minute()) { + next_t = static_cast (*i); + break; + } + } + + if (!next_t) { + return false; + } + + if (next_t->clamped()) { + next_t->set_note_types_per_minute (new_copy_end_bpm); + } else { + next_t->set_note_types_per_minute (new_next_bpm); + } + + ts->set_end_note_types_per_minute (new_copy_end_bpm); + recompute_map (_metrics); + can_solve = true; + } + } + } + + Metrics::const_iterator d = future_map.begin(); + while (d != future_map.end()) { + delete (*d); + ++d; + } + + MetricPositionChanged (PropertyChange ()); // Emit Signal + + return can_solve; +} + +/** Returns the sample position of the musical position zero */ +samplepos_t +TempoMap::music_origin () +{ + Glib::Threads::RWLock::ReaderLock lm (lock); + + return first_tempo().sample(); +} + +/** Returns the exact bbt-based beat corresponding to the bar, beat or quarter note subdivision nearest to + * the supplied sample, possibly returning a negative value. + * + * @param sample The session sample position. + * @param sub_num The subdivision to use when rounding the beat. + * A value of -1 indicates rounding to BBT bar. 1 indicates rounding to BBT beats. + * Positive integers indicate quarter note (non BBT) divisions. + * 0 indicates that the returned beat should not be rounded (equivalent to quarter_note_at_sample()). + * @return The beat position of the supplied sample. + * + * when working to a musical grid, the use of sub_nom indicates that + * the position should be interpreted musically. + * + * it effectively snaps to meter bars, meter beats or quarter note divisions + * (as per current gui convention) and returns a musical position independent of frame rate. + * + * If the supplied sample lies before the first meter, the return will be negative, + * in which case the returned beat uses the first meter (for BBT subdivisions) and + * the continuation of the tempo curve (backwards). + * + * This function is sensitive to tempo and meter. + */ +double +TempoMap::exact_beat_at_sample (const samplepos_t sample, const int32_t sub_num) const +{ + Glib::Threads::RWLock::ReaderLock lm (lock); + + return exact_beat_at_sample_locked (_metrics, sample, sub_num); +} + +double +TempoMap::exact_beat_at_sample_locked (const Metrics& metrics, const samplepos_t sample, const int32_t divisions) const +{ + return beat_at_pulse_locked (_metrics, exact_qn_at_sample_locked (metrics, sample, divisions) / 4.0); +} + +/** Returns the exact quarter note corresponding to the bar, beat or quarter note subdivision nearest to + * the supplied sample, possibly returning a negative value. + * + * @param sample The session sample position. + * @param sub_num The subdivision to use when rounding the quarter note. + * A value of -1 indicates rounding to BBT bar. 1 indicates rounding to BBT beats. + * Positive integers indicate quarter note (non BBT) divisions. + * 0 indicates that the returned quarter note should not be rounded (equivalent to quarter_note_at_sample()). + * @return The quarter note position of the supplied sample. + * + * When working to a musical grid, the use of sub_nom indicates that + * the sample position should be interpreted musically. + * + * it effectively snaps to meter bars, meter beats or quarter note divisions + * (as per current gui convention) and returns a musical position independent of frame rate. + * + * If the supplied sample lies before the first meter, the return will be negative, + * in which case the returned quarter note uses the first meter (for BBT subdivisions) and + * the continuation of the tempo curve (backwards). + * + * This function is tempo-sensitive. + */ +double +TempoMap::exact_qn_at_sample (const samplepos_t sample, const int32_t sub_num) const +{ + Glib::Threads::RWLock::ReaderLock lm (lock); + + return exact_qn_at_sample_locked (_metrics, sample, sub_num); +} + +double +TempoMap::exact_qn_at_sample_locked (const Metrics& metrics, const samplepos_t sample, const int32_t sub_num) const +{ + double qn = pulse_at_minute_locked (metrics, minute_at_sample (sample)) * 4.0; + + if (sub_num > 1) { + qn = floor (qn) + (floor (((qn - floor (qn)) * (double) sub_num) + 0.5) / sub_num); + } else if (sub_num == 1) { + /* the gui requested exact musical (BBT) beat */ + qn = pulse_at_beat_locked (metrics, (floor (beat_at_minute_locked (metrics, minute_at_sample (sample)) + 0.5))) * 4.0; + } else if (sub_num == -1) { + /* snap to bar */ + Timecode::BBT_Time bbt = bbt_at_pulse_locked (metrics, qn / 4.0); + bbt.beats = 1; + bbt.ticks = 0; + + const double prev_b = pulse_at_bbt_locked (metrics, bbt) * 4.0; + ++bbt.bars; + const double next_b = pulse_at_bbt_locked (metrics, bbt) * 4.0; + + if ((qn - prev_b) > (next_b - prev_b) / 2.0) { + qn = next_b; } else { - /* on the subdivision, do nothing */ + qn = prev_b; + } + } + + return qn; +} + +/** returns the sample duration of the supplied BBT time at a specified sample position in the tempo map. + * @param pos the sample position in the tempo map. + * @param bbt the distance in BBT time from pos to calculate. + * @param dir the rounding direction.. + * @return the duration in samples between pos and bbt +*/ +samplecnt_t +TempoMap::bbt_duration_at (samplepos_t pos, const BBT_Time& bbt, int dir) +{ + Glib::Threads::RWLock::ReaderLock lm (lock); + + BBT_Time pos_bbt = bbt_at_minute_locked (_metrics, minute_at_sample (pos)); + + const double divisions = meter_section_at_minute_locked (_metrics, minute_at_sample (pos)).divisions_per_bar(); + + if (dir > 0) { + pos_bbt.bars += bbt.bars; + + pos_bbt.ticks += bbt.ticks; + if ((double) pos_bbt.ticks > BBT_Time::ticks_per_beat) { + pos_bbt.beats += 1; + pos_bbt.ticks -= BBT_Time::ticks_per_beat; + } + + pos_bbt.beats += bbt.beats; + if ((double) pos_bbt.beats > divisions) { + pos_bbt.bars += 1; + pos_bbt.beats -= divisions; + } + const samplecnt_t pos_bbt_sample = sample_at_minute (minute_at_bbt_locked (_metrics, pos_bbt)); + + return pos_bbt_sample - pos; + + } else { + + if (pos_bbt.bars <= bbt.bars) { + pos_bbt.bars = 1; + } else { + pos_bbt.bars -= bbt.bars; } + + if (pos_bbt.ticks < bbt.ticks) { + if (pos_bbt.bars > 1) { + if (pos_bbt.beats == 1) { + pos_bbt.bars--; + pos_bbt.beats = divisions; + } else { + pos_bbt.beats--; + } + pos_bbt.ticks = BBT_Time::ticks_per_beat - (bbt.ticks - pos_bbt.ticks); + } else { + pos_bbt.beats = 1; + pos_bbt.ticks = 0; + } + } else { + pos_bbt.ticks -= bbt.ticks; + } + + if (pos_bbt.beats <= bbt.beats) { + if (pos_bbt.bars > 1) { + pos_bbt.bars--; + pos_bbt.beats = divisions - (bbt.beats - pos_bbt.beats); + } else { + pos_bbt.beats = 1; + } + } else { + pos_bbt.beats -= bbt.beats; + } + + return pos - sample_at_minute (minute_at_bbt_locked (_metrics, pos_bbt)); } - const framepos_t ret_frame = frame_at_minute (minute_at_beat_locked (_metrics, beats + (ticks / BBT_Time::ticks_per_beat))); + return 0; +} + +MusicSample +TempoMap::round_to_bar (samplepos_t fr, RoundMode dir) +{ + return round_to_type (fr, dir, Bar); +} - return ret_frame; +MusicSample +TempoMap::round_to_beat (samplepos_t fr, RoundMode dir) +{ + return round_to_type (fr, dir, Beat); } -framepos_t -TempoMap::round_to_quarter_note_subdivision (framepos_t fr, int sub_num, RoundMode dir) +MusicSample +TempoMap::round_to_quarter_note_subdivision (samplepos_t fr, int sub_num, RoundMode dir) { Glib::Threads::RWLock::ReaderLock lm (lock); - uint32_t ticks = (uint32_t) floor (max (0.0, quarter_note_at_minute_locked (_metrics, minute_at_frame (fr))) * BBT_Time::ticks_per_beat); + uint32_t ticks = (uint32_t) floor (max (0.0, pulse_at_minute_locked (_metrics, minute_at_sample (fr))) * BBT_Time::ticks_per_beat * 4.0); uint32_t beats = (uint32_t) floor (ticks / BBT_Time::ticks_per_beat); uint32_t ticks_one_subdivisions_worth = (uint32_t) BBT_Time::ticks_per_beat / sub_num; @@ -3673,9 +3951,14 @@ TempoMap::round_to_quarter_note_subdivision (framepos_t fr, int sub_num, RoundMo ticks += ticks_one_subdivisions_worth - mod; } - if (ticks >= BBT_Time::ticks_per_beat) { - ticks -= BBT_Time::ticks_per_beat; - } +//NOTE: this code intentionally limits the rounding so we don't advance to the next beat. +// For the purposes of "jump-to-next-subdivision", we DO want to advance to the next beat. +// And since the "prev" direction DOES move beats, I assume this code is unintended. +// But I'm keeping it around, until we determine there are no terrible consequences. +// if (ticks >= BBT_Time::ticks_per_beat) { +// ticks -= BBT_Time::ticks_per_beat; +// } + } else if (dir < 0) { /* round to previous (or same iff dir == RoundDownMaybe) */ @@ -3721,7 +4004,7 @@ TempoMap::round_to_quarter_note_subdivision (framepos_t fr, int sub_num, RoundMo if (rem > ticks) { if (beats == 0) { /* can't go backwards past zero, so ... */ - return 0; + return MusicSample (0, 0); } /* step back to previous beat */ --beats; @@ -3736,91 +4019,118 @@ TempoMap::round_to_quarter_note_subdivision (framepos_t fr, int sub_num, RoundMo } } - const framepos_t ret_frame = frame_at_minute (minute_at_quarter_note_locked (_metrics, beats + (ticks / BBT_Time::ticks_per_beat))); + MusicSample ret (0, 0); + ret.sample = sample_at_minute (minute_at_pulse_locked (_metrics, (beats + (ticks / BBT_Time::ticks_per_beat)) / 4.0)); + ret.division = sub_num; - return ret_frame; + return ret; } -framepos_t -TempoMap::round_to_type (framepos_t frame, RoundMode dir, BBTPointType type) +MusicSample +TempoMap::round_to_type (samplepos_t sample, RoundMode dir, BBTPointType type) { Glib::Threads::RWLock::ReaderLock lm (lock); - - const double beat_at_framepos = max (0.0, beat_at_minute_locked (_metrics, minute_at_frame (frame))); - BBT_Time bbt (bbt_at_beat_locked (_metrics, beat_at_framepos)); + const double minute = minute_at_sample (sample); + const double beat_at_samplepos = max (0.0, beat_at_minute_locked (_metrics, minute)); + BBT_Time bbt (bbt_at_beat_locked (_metrics, beat_at_samplepos)); + MusicSample ret (0, 0); switch (type) { case Bar: + ret.division = -1; + if (dir < 0) { - /* find bar previous to 'frame' */ + /* find bar previous to 'sample' */ + if (bbt.bars > 0) + --bbt.bars; bbt.beats = 1; bbt.ticks = 0; - return frame_at_minute (minute_at_bbt_locked (_metrics, bbt)); + + ret.sample = sample_at_minute (minute_at_bbt_locked (_metrics, bbt)); + + return ret; } else if (dir > 0) { - /* find bar following 'frame' */ + /* find bar following 'sample' */ ++bbt.bars; bbt.beats = 1; bbt.ticks = 0; - return frame_at_minute (minute_at_bbt_locked (_metrics, bbt)); + + ret.sample = sample_at_minute (minute_at_bbt_locked (_metrics, bbt)); + + return ret; } else { /* true rounding: find nearest bar */ - framepos_t raw_ft = frame_at_minute (minute_at_bbt_locked (_metrics, bbt)); + samplepos_t raw_ft = sample_at_minute (minute_at_bbt_locked (_metrics, bbt)); bbt.beats = 1; bbt.ticks = 0; - framepos_t prev_ft = frame_at_minute (minute_at_bbt_locked (_metrics, bbt)); + samplepos_t prev_ft = sample_at_minute (minute_at_bbt_locked (_metrics, bbt)); ++bbt.bars; - framepos_t next_ft = frame_at_minute (minute_at_bbt_locked (_metrics, bbt)); + samplepos_t next_ft = sample_at_minute (minute_at_bbt_locked (_metrics, bbt)); - if ((raw_ft - prev_ft) > (next_ft - prev_ft) / 2) { - return next_ft; + if ((raw_ft - prev_ft) > (next_ft - prev_ft) / 2) { + ret.sample = next_ft; + + return ret; } else { - return prev_ft; + --bbt.bars; + ret.sample = prev_ft; + + return ret; } } break; case Beat: + ret.division = 1; + if (dir < 0) { - return frame_at_minute (minute_at_beat_locked (_metrics, floor (beat_at_framepos))); + ret.sample = sample_at_minute (minute_at_beat_locked (_metrics, floor (beat_at_samplepos))); + + return ret; } else if (dir > 0) { - return frame_at_minute (minute_at_beat_locked (_metrics, ceil (beat_at_framepos))); + ret.sample = sample_at_minute (minute_at_beat_locked (_metrics, ceil (beat_at_samplepos))); + + return ret; } else { - return frame_at_minute (minute_at_beat_locked (_metrics, floor (beat_at_framepos + 0.5))); + ret.sample = sample_at_minute (minute_at_beat_locked (_metrics, floor (beat_at_samplepos + 0.5))); + + return ret; } break; } - return 0; + return MusicSample (0, 0); } void TempoMap::get_grid (vector& points, - framepos_t lower, framepos_t upper, uint32_t bar_mod) + samplepos_t lower, samplepos_t upper, uint32_t bar_mod) { Glib::Threads::RWLock::ReaderLock lm (lock); - int32_t cnt = ceil (beat_at_minute_locked (_metrics, minute_at_frame (lower))); - framecnt_t pos = 0; + int32_t cnt = ceil (beat_at_minute_locked (_metrics, minute_at_sample (lower))); + samplecnt_t pos = 0; /* although the map handles negative beats, bbt doesn't. */ if (cnt < 0.0) { cnt = 0.0; } - if (minute_at_beat_locked (_metrics, cnt) >= minute_at_frame (upper)) { + if (minute_at_beat_locked (_metrics, cnt) >= minute_at_sample (upper)) { return; } if (bar_mod == 0) { while (pos >= 0 && pos < upper) { - pos = frame_at_minute (minute_at_beat_locked (_metrics, cnt)); - const TempoSection tempo = tempo_section_at_minute_locked (_metrics, minute_at_frame (pos)); - const MeterSection meter = meter_section_at_minute_locked (_metrics, minute_at_frame (pos)); + pos = sample_at_minute (minute_at_beat_locked (_metrics, cnt)); + const MeterSection meter = meter_section_at_minute_locked (_metrics, minute_at_sample (pos)); const BBT_Time bbt = bbt_at_beat_locked (_metrics, cnt); - points.push_back (BBTPoint (meter, tempo_at_minute_locked (_metrics, minute_at_frame (pos)), pos, bbt.bars, bbt.beats, tempo.c_func())); + const double qn = pulse_at_beat_locked (_metrics, cnt) * 4.0; + + points.push_back (BBTPoint (meter, tempo_at_minute_locked (_metrics, minute_at_sample (pos)), pos, bbt.bars, bbt.beats, qn)); ++cnt; } } else { - BBT_Time bbt = bbt_at_minute_locked (_metrics, minute_at_frame (lower)); + BBT_Time bbt = bbt_at_minute_locked (_metrics, minute_at_sample (lower)); bbt.beats = 1; bbt.ticks = 0; @@ -3830,21 +4140,30 @@ TempoMap::get_grid (vector& points, } while (pos >= 0 && pos < upper) { - pos = frame_at_minute (minute_at_bbt_locked (_metrics, bbt)); - const TempoSection tempo = tempo_section_at_minute_locked (_metrics, minute_at_frame (pos)); - const MeterSection meter = meter_section_at_minute_locked (_metrics, minute_at_frame (pos)); - points.push_back (BBTPoint (meter, tempo_at_minute_locked (_metrics, minute_at_frame (pos)), pos, bbt.bars, bbt.beats, tempo.c_func())); + pos = sample_at_minute (minute_at_bbt_locked (_metrics, bbt)); + const MeterSection meter = meter_section_at_minute_locked (_metrics, minute_at_sample (pos)); + const double qn = pulse_at_bbt_locked (_metrics, bbt) * 4.0; + + points.push_back (BBTPoint (meter, tempo_at_minute_locked (_metrics, minute_at_sample (pos)), pos, bbt.bars, bbt.beats, qn)); bbt.bars += bar_mod; } } } const TempoSection& -TempoMap::tempo_section_at_frame (framepos_t frame) const +TempoMap::tempo_section_at_sample (samplepos_t sample) const +{ + Glib::Threads::RWLock::ReaderLock lm (lock); + + return tempo_section_at_minute_locked (_metrics, minute_at_sample (sample)); +} + +TempoSection& +TempoMap::tempo_section_at_sample (samplepos_t sample) { Glib::Threads::RWLock::ReaderLock lm (lock); - return tempo_section_at_minute_locked (_metrics, minute_at_frame (frame)); + return tempo_section_at_minute_locked (_metrics, minute_at_sample (sample)); } const TempoSection& @@ -3876,7 +4195,35 @@ TempoMap::tempo_section_at_minute_locked (const Metrics& metrics, double minute) return *prev; } +TempoSection& +TempoMap::tempo_section_at_minute_locked (const Metrics& metrics, double minute) +{ + TempoSection* prev = 0; + + TempoSection* t; + + for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { + + if ((*i)->is_tempo()) { + t = static_cast (*i); + if (!t->active()) { + continue; + } + if (prev && t->minute() > minute) { + break; + } + + prev = t; + } + } + + if (prev == 0) { + fatal << endmsg; + abort(); /*NOTREACHED*/ + } + return *prev; +} const TempoSection& TempoMap::tempo_section_at_beat_locked (const Metrics& metrics, const double& beat) const { @@ -3888,6 +4235,11 @@ TempoMap::tempo_section_at_beat_locked (const Metrics& metrics, const double& be for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { if ((*i)->is_tempo()) { t = static_cast (*i); + + if (!t->active()) { + continue; + } + if (prev_t && ((t->pulse() - prev_m->pulse()) * prev_m->note_divisor()) + prev_m->beat() > beat) { break; } @@ -3898,11 +4250,97 @@ TempoMap::tempo_section_at_beat_locked (const Metrics& metrics, const double& be return *prev_t; } -/* don't use this to calculate length (the tempo is only correct for this frame). - do that stuff based on the beat_at_frame and frame_at_beat api +TempoSection* +TempoMap::previous_tempo_section (TempoSection* ts) const +{ + Glib::Threads::RWLock::ReaderLock lm (lock); + + return previous_tempo_section_locked (_metrics, ts); + +} + +TempoSection* +TempoMap::previous_tempo_section_locked (const Metrics& metrics, TempoSection* ts) const +{ + if (!ts) { + return 0; + } + + TempoSection* prev = 0; + + for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { + + if ((*i)->is_tempo()) { + TempoSection* t = static_cast (*i); + + if (!t->active()) { + continue; + } + + if (prev && t == ts) { + + return prev; + } + + prev = t; + } + } + + if (prev == 0) { + fatal << endmsg; + abort(); /*NOTREACHED*/ + } + + return 0; +} + +TempoSection* +TempoMap::next_tempo_section (TempoSection* ts) const +{ + Glib::Threads::RWLock::ReaderLock lm (lock); + + return next_tempo_section_locked (_metrics, ts); +} + +TempoSection* +TempoMap::next_tempo_section_locked (const Metrics& metrics, TempoSection* ts) const +{ + if (!ts) { + return 0; + } + + TempoSection* prev = 0; + + for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { + + if ((*i)->is_tempo()) { + TempoSection* t = static_cast (*i); + + if (!t->active()) { + continue; + } + + if (prev && prev == ts) { + + return t; + } + + prev = t; + } + } + + if (prev == 0) { + fatal << endmsg; + abort(); /*NOTREACHED*/ + } + + return 0; +} +/* don't use this to calculate length (the tempo is only correct for this sample). + do that stuff based on the beat_at_sample and sample_at_beat api */ double -TempoMap::frames_per_quarter_note_at (const framepos_t& frame, const framecnt_t& sr) const +TempoMap::samples_per_quarter_note_at (const samplepos_t sample, const samplecnt_t sr) const { Glib::Threads::RWLock::ReaderLock lm (lock); @@ -3918,26 +4356,27 @@ TempoMap::frames_per_quarter_note_at (const framepos_t& frame, const framecnt_t& if (!t->active()) { continue; } - if (ts_at && (*i)->frame() > frame) { + if (ts_at && (*i)->sample() > sample) { ts_after = t; break; } ts_at = t; } } + assert (ts_at); if (ts_after) { - return (60.0 * _frame_rate) / ts_at->tempo_at_minute (minute_at_frame (frame)).quarter_notes_per_minute(); + return (60.0 * _sample_rate) / ts_at->tempo_at_minute (minute_at_sample (sample)).quarter_notes_per_minute(); } /* must be treated as constant tempo */ - return ts_at->frames_per_quarter_note (_frame_rate); + return ts_at->samples_per_quarter_note (_sample_rate); } const MeterSection& -TempoMap::meter_section_at_frame (framepos_t frame) const +TempoMap::meter_section_at_sample (samplepos_t sample) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return meter_section_at_minute_locked (_metrics, minute_at_frame (frame)); + return meter_section_at_minute_locked (_metrics, minute_at_sample (sample)); } const MeterSection& @@ -3996,9 +4435,9 @@ TempoMap::meter_section_at_beat (double beat) const } const Meter& -TempoMap::meter_at_frame (framepos_t frame) const +TempoMap::meter_at_sample (samplepos_t sample) const { - TempoMetric m (metric_at (frame)); + TempoMetric m (metric_at (sample)); return m.meter(); } @@ -4007,13 +4446,14 @@ TempoMap::fix_legacy_session () { MeterSection* prev_m = 0; TempoSection* prev_t = 0; + bool have_initial_t = false; for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { MeterSection* m; TempoSection* t; if ((m = dynamic_cast(*i)) != 0) { - if (!m->movable()) { + if (m->initial()) { pair bbt = make_pair (0.0, BBT_Time (1, 1, 0)); m->set_beat (bbt); m->set_pulse (0.0); @@ -4039,16 +4479,29 @@ TempoMap::fix_legacy_session () if (!t->active()) { continue; } + /* Ramp type never existed in the era of this tempo section */ + t->set_end_note_types_per_minute (t->note_types_per_minute()); - if (!t->movable()) { + if (t->initial()) { t->set_pulse (0.0); t->set_minute (0.0); t->set_position_lock_style (AudioTime); prev_t = t; + have_initial_t = true; continue; } if (prev_t) { + /* some 4.x sessions have no initial (non-movable) tempo. */ + if (!have_initial_t) { + prev_t->set_pulse (0.0); + prev_t->set_minute (0.0); + prev_t->set_position_lock_style (AudioTime); + prev_t->set_initial (true); + prev_t->set_locked_to_meter (true); + have_initial_t = true; + } + const double beat = ((t->legacy_bbt().bars - 1) * ((prev_m) ? prev_m->note_divisor() : 4.0)) + (t->legacy_bbt().beats - 1) + (t->legacy_bbt().ticks / BBT_Time::ticks_per_beat); @@ -4063,6 +4516,34 @@ TempoMap::fix_legacy_session () } } } +void +TempoMap::fix_legacy_end_session () +{ + TempoSection* prev_t = 0; + + for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { + TempoSection* t; + + if ((t = dynamic_cast(*i)) != 0) { + + if (!t->active()) { + continue; + } + + if (prev_t) { + if (prev_t->end_note_types_per_minute() < 0.0) { + prev_t->set_end_note_types_per_minute (t->note_types_per_minute()); + } + } + + prev_t = t; + } + } + + if (prev_t) { + prev_t->set_end_note_types_per_minute (prev_t->note_types_per_minute()); + } +} XMLNode& TempoMap::get_state () @@ -4099,7 +4580,7 @@ TempoMap::set_state (const XMLNode& node, int /*version*/) if (child->name() == TempoSection::xml_state_node_name) { try { - TempoSection* ts = new TempoSection (*child, _frame_rate); + TempoSection* ts = new TempoSection (*child, _sample_rate); _metrics.push_back (ts); } @@ -4113,7 +4594,7 @@ TempoMap::set_state (const XMLNode& node, int /*version*/) } else if (child->name() == MeterSection::xml_state_node_name) { try { - MeterSection* ms = new MeterSection (*child, _frame_rate); + MeterSection* ms = new MeterSection (*child, _sample_rate); _metrics.push_back (ms); } @@ -4126,11 +4607,6 @@ TempoMap::set_state (const XMLNode& node, int /*version*/) } } - if (niter == nlist.end()) { - MetricSectionSorter cmp; - _metrics.sort (cmp); - } - /* check for legacy sessions where bbt was the base musical unit for tempo */ for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) { TempoSection* t; @@ -4139,10 +4615,19 @@ TempoMap::set_state (const XMLNode& node, int /*version*/) fix_legacy_session(); break; } - break; + + if (t->end_note_types_per_minute() < 0.0) { + fix_legacy_end_session(); + break; + } } } + if (niter == nlist.end()) { + MetricSectionSorter cmp; + _metrics.sort (cmp); + } + /* check for multiple tempo/meters at the same location, which ardour2 somehow allowed. */ @@ -4155,9 +4640,9 @@ TempoMap::set_state (const XMLNode& node, int /*version*/) TempoSection* ts; TempoSection* prev_t; if ((prev_m = dynamic_cast(*prev)) != 0 && (ms = dynamic_cast(*i)) != 0) { - if (prev_m->pulse() == ms->pulse()) { - cerr << string_compose (_("Multiple meter definitions found at %1"), prev_m->pulse()) << endmsg; - error << string_compose (_("Multiple meter definitions found at %1"), prev_m->pulse()) << endmsg; + if (prev_m->beat() == ms->beat()) { + cerr << string_compose (_("Multiple meter definitions found at %1"), prev_m->beat()) << endmsg; + error << string_compose (_("Multiple meter definitions found at %1"), prev_m->beat()) << endmsg; return -1; } } else if ((prev_t = dynamic_cast(*prev)) != 0 && (ts = dynamic_cast(*i)) != 0) { @@ -4187,35 +4672,36 @@ TempoMap::set_state (const XMLNode& node, int /*version*/) } void -TempoMap::dump (const Metrics& metrics, std::ostream& o) const +TempoMap::dump (std::ostream& o) const { Glib::Threads::RWLock::ReaderLock lm (lock, Glib::Threads::TRY_LOCK); const MeterSection* m; const TempoSection* t; const TempoSection* prev_t = 0; - for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) { + for (Metrics::const_iterator i = _metrics.begin(); i != _metrics.end(); ++i) { if ((t = dynamic_cast(*i)) != 0) { - o << "Tempo @ " << *i << t->note_types_per_minute() << " BPM (pulse = 1/" << t->note_type() + o << "Tempo @ " << *i << " start : " << t->note_types_per_minute() << " end : " << t->end_note_types_per_minute() << " BPM (pulse = 1/" << t->note_type() << " type= " << enum_2_string (t->type()) << ") " << " at pulse= " << t->pulse() - << " minute= " << t->minute() << " frame= " << t->frame() << " (movable? " << t->movable() << ')' + << " minute= " << t->minute() << " sample= " << t->sample() << " (initial? " << t->initial() << ')' << " pos lock: " << enum_2_string (t->position_lock_style()) << std::endl; if (prev_t) { - o << std::setprecision (17) << " current : " << t->note_types_per_minute() - << " | " << t->pulse() << " | " << t->frame() << " | " << t->minute() << std::endl; + o << " current start : " << t->note_types_per_minute() + << " current end : " << t->end_note_types_per_minute() + << " | " << t->pulse() << " | " << t->sample() << " | " << t->minute() << std::endl; o << " previous : " << prev_t->note_types_per_minute() - << " | " << prev_t->pulse() << " | " << prev_t->frame() << " | " << prev_t->minute() << std::endl; + << " | " << prev_t->pulse() << " | " << prev_t->sample() << " | " << prev_t->minute() << std::endl; o << " calculated : " << prev_t->tempo_at_pulse (t->pulse()) - << " | " << prev_t->pulse_at_ntpm (t->note_types_per_minute(), t->minute()) - << " | " << frame_at_minute (prev_t->minute_at_ntpm (t->note_types_per_minute(), t->pulse())) - << " | " << prev_t->minute_at_ntpm (t->note_types_per_minute(), t->pulse()) << std::endl; + << " | " << prev_t->pulse_at_ntpm (prev_t->end_note_types_per_minute(), t->minute()) + << " | " << sample_at_minute (prev_t->minute_at_ntpm (prev_t->end_note_types_per_minute(), t->pulse())) + << " | " << prev_t->minute_at_ntpm (prev_t->end_note_types_per_minute(), t->pulse()) << std::endl; } prev_t = t; } else if ((m = dynamic_cast(*i)) != 0) { o << "Meter @ " << *i << ' ' << m->divisions_per_bar() << '/' << m->note_divisor() << " at " << m->bbt() - << " frame= " << m->frame() << " pulse: " << m->pulse() << " beat : " << m->beat() - << " pos lock: " << enum_2_string (m->position_lock_style()) << " (movable? " << m->movable() << ')' << endl; + << " sample= " << m->sample() << " pulse: " << m->pulse() << " beat : " << m->beat() + << " pos lock: " << enum_2_string (m->position_lock_style()) << " (initial? " << m->initial() << ')' << endl; } } o << "------" << std::endl; @@ -4252,19 +4738,19 @@ TempoMap::n_meters() const } void -TempoMap::insert_time (framepos_t where, framecnt_t amount) +TempoMap::insert_time (samplepos_t where, samplecnt_t amount) { for (Metrics::reverse_iterator i = _metrics.rbegin(); i != _metrics.rend(); ++i) { - if ((*i)->frame() >= where && (*i)->movable ()) { + if ((*i)->sample() >= where && !(*i)->initial ()) { MeterSection* ms; TempoSection* ts; if ((ms = dynamic_cast (*i)) != 0) { - gui_move_meter (ms, (*i)->frame() + amount); + gui_set_meter_position (ms, (*i)->sample() + amount); } if ((ts = dynamic_cast (*i)) != 0) { - gui_move_tempo (ts, (*i)->frame() + amount, 0); + gui_set_tempo_position (ts, (*i)->sample() + amount, 0); } } } @@ -4273,7 +4759,7 @@ TempoMap::insert_time (framepos_t where, framecnt_t amount) } bool -TempoMap::remove_time (framepos_t where, framecnt_t amount) +TempoMap::remove_time (samplepos_t where, samplecnt_t amount) { bool moved = false; @@ -4286,7 +4772,7 @@ TempoMap::remove_time (framepos_t where, framecnt_t amount) { Glib::Threads::RWLock::WriterLock lm (lock); for (Metrics::iterator i = _metrics.begin(); i != _metrics.end(); ++i) { - if ((*i)->frame() >= where && (*i)->frame() < where+amount) { + if ((*i)->sample() >= where && (*i)->sample() < where+amount) { metric_kill_list.push_back(*i); TempoSection *lt = dynamic_cast (*i); if (lt) @@ -4295,10 +4781,10 @@ TempoMap::remove_time (framepos_t where, framecnt_t amount) if (lm) last_meter = lm; } - else if ((*i)->frame() >= where) { + else if ((*i)->sample() >= where) { // TODO: make sure that moved tempo/meter markers are rounded to beat/bar boundaries - (*i)->set_minute ((*i)->minute() - minute_at_frame (amount)); - if ((*i)->frame() == where) { + (*i)->set_minute ((*i)->minute() - minute_at_sample (amount)); + if ((*i)->sample() == where) { // marker was immediately after end of range tempo_after = dynamic_cast (*i); meter_after = dynamic_cast (*i); @@ -4310,12 +4796,12 @@ TempoMap::remove_time (framepos_t where, framecnt_t amount) //find the last TEMPO and METER metric (if any) and move it to the cut point so future stuff is correct if (last_tempo && !tempo_after) { metric_kill_list.remove(last_tempo); - last_tempo->set_minute (minute_at_frame (where)); + last_tempo->set_minute (minute_at_sample (where)); moved = true; } if (last_meter && !meter_after) { metric_kill_list.remove(last_meter); - last_meter->set_minute (minute_at_frame (where)); + last_meter->set_minute (minute_at_sample (where)); moved = true; } @@ -4333,24 +4819,24 @@ TempoMap::remove_time (framepos_t where, framecnt_t amount) return moved; } -/** Add some (fractional) Beats to a session frame position, and return the result in frames. +/** Add some (fractional) Beats to a session sample position, and return the result in samples. * pos can be -ve, if required. */ -framepos_t -TempoMap::framepos_plus_qn (framepos_t frame, Evoral::Beats beats) const +samplepos_t +TempoMap::samplepos_plus_qn (samplepos_t sample, Temporal::Beats beats) const { Glib::Threads::RWLock::ReaderLock lm (lock); - const double frame_qn = quarter_notes_between_frames_locked (_metrics, 0, frame); + const double sample_qn = pulse_at_minute_locked (_metrics, minute_at_sample (sample)) * 4.0; - return frame_at_minute (minute_at_quarter_note_locked (_metrics, frame_qn + beats.to_double())); + return sample_at_minute (minute_at_pulse_locked (_metrics, (sample_qn + beats.to_double()) / 4.0)); } -framepos_t -TempoMap::framepos_plus_bbt (framepos_t pos, BBT_Time op) const +samplepos_t +TempoMap::samplepos_plus_bbt (samplepos_t pos, BBT_Time op) const { Glib::Threads::RWLock::ReaderLock lm (lock); - BBT_Time pos_bbt = bbt_at_beat_locked (_metrics, beat_at_minute_locked (_metrics, minute_at_frame (pos))); + BBT_Time pos_bbt = bbt_at_beat_locked (_metrics, beat_at_minute_locked (_metrics, minute_at_sample (pos))); pos_bbt.ticks += op.ticks; if (pos_bbt.ticks >= BBT_Time::ticks_per_beat) { ++pos_bbt.beats; @@ -4366,18 +4852,18 @@ TempoMap::framepos_plus_bbt (framepos_t pos, BBT_Time op) const } pos_bbt.bars += op.bars; - return frame_at_minute (minute_at_bbt_locked (_metrics, pos_bbt)); + return sample_at_minute (minute_at_bbt_locked (_metrics, pos_bbt)); } /** Count the number of beats that are equivalent to distance when going forward, starting at pos. */ -Evoral::Beats -TempoMap::framewalk_to_qn (framepos_t pos, framecnt_t distance) const +Temporal::Beats +TempoMap::framewalk_to_qn (samplepos_t pos, samplecnt_t distance) const { Glib::Threads::RWLock::ReaderLock lm (lock); - return Evoral::Beats (quarter_notes_between_frames_locked (_metrics, pos, pos + distance)); + return Temporal::Beats (quarter_notes_between_samples_locked (_metrics, pos, pos + distance)); } struct bbtcmp { @@ -4399,7 +4885,7 @@ operator<< (std::ostream& o, const Tempo& t) { std::ostream& operator<< (std::ostream& o, const MetricSection& section) { - o << "MetricSection @ " << section.frame() << ' '; + o << "MetricSection @ " << section.sample() << ' '; const TempoSection* ts; const MeterSection* ms;