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add lots more BBT-based time info for VST plugins (see 5737)

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This commit is contained in:
Paul Davis 2014-01-15 16:08:27 -05:00
parent a454bedc1d
commit af3481fb78
1 changed files with 48 additions and 3 deletions
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51
libs/ardour/session_vst.cc
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@ -17,7 +17,9 @@
*/
#ifndef COMPILER_MSVC
#include <stdbool.h>
#endif
#include <cstdio>
#include "ardour/session.h"
@ -59,11 +61,19 @@ intptr_t Session::vst_callback (
if (effect && effect->user) {
plug = (VSTPlugin *) (effect->user);
session = &plug->session();
#ifdef COMPILER_MSVC
SHOW_CALLBACK ("am callback 0x%x, opcode = %d, plugin = \"%s\" ", (int) pthread_self().p, opcode, plug->name());
#else
SHOW_CALLBACK ("am callback 0x%x, opcode = %d, plugin = \"%s\" ", (int) pthread_self(), opcode, plug->name());
#endif
} else {
plug = 0;
session = 0;
#ifdef COMPILER_MSVC
SHOW_CALLBACK ("am callback 0x%x, opcode = %d", (int) pthread_self().p, opcode);
#else
SHOW_CALLBACK ("am callback 0x%x, opcode = %d", (int) pthread_self(), opcode);
#endif
}
switch(opcode){
@ -121,21 +131,56 @@ intptr_t Session::vst_callback (
// conversions
memset(&_timeInfo, 0, sizeof(_timeInfo));
if (session) {
_timeInfo.samplePos = session->transport_frame();
framepos_t now = session->transport_frame();
_timeInfo.samplePos = now;
_timeInfo.sampleRate = session->frame_rate();
_timeInfo.flags = 0;
const TempoMetric& tm (session->tempo_map().metric_at (now));
if (value & (kVstTempoValid)) {
const Tempo& t (session->tempo_map().tempo_at (session->transport_frame()));
const Tempo& t (tm.tempo());
_timeInfo.tempo = t.beats_per_minute ();
_timeInfo.flags |= (kVstTempoValid);
}
if (value & (kVstBarsValid)) {
const Meter& m (session->tempo_map().meter_at (session->transport_frame()));
const Meter& m (tm.meter());
_timeInfo.timeSigNumerator = m.divisions_per_bar ();
_timeInfo.timeSigDenominator = m.note_divisor ();
_timeInfo.flags |= (kVstBarsValid);
}
if (value & (kVstPpqPosValid)) {
Timecode::BBT_Time bbt;
try {
session->tempo_map().bbt_time_rt (now, bbt);
/* Note that this assumes constant
meter/tempo throughout the session. We
can do better than this, because
progressive rock fans demand it.
*/
double ppqBar = double(bbt.bars - 1) * tm.meter().divisions_per_bar();
double ppqBeat = double(bbt.beats - 1);
double ppqTick = double(bbt.ticks) / Timecode::BBT_Time::ticks_per_beat;
// PPQ Pos
_timeInfo.ppqPos = ppqBar + ppqBeat + ppqTick;
_timeInfo.flags |= (kVstPpqPosValid);
} catch (...) {
/* relax */
}
}
_timeInfo.tempo = tm.tempo().beats_per_minute();
_timeInfo.flags |= kVstTempoValid;
// Bars
// _timeInfo.barStartPos = ppqBar;
// _timeInfo.flags |= kVstBarsValid;
// Time Signature
_timeInfo.timeSigNumerator = tm.meter().divisions_per_bar();
_timeInfo.timeSigDenominator = tm.meter().note_divisor();
_timeInfo.flags |= kVstTimeSigValid;
if (session->transport_speed() != 0.0f) {
_timeInfo.flags |= kVstTransportPlaying;