VST to host sync
This patch should bring VST to host synchronization for LMMS. (e.g. for plugins like dBlue Glitch, TAL Filters). Synchronization is done via shared memory, missing song time positions are reccalculated and added to PPQ position sync values (SHM - common input interface for sync of all VST plugins)
This commit is contained in:
Mike Choi
committed by
Tobias Doerffel
Tobias Doerffel
parent
7682bc6ef9
commit
0ef2997ece
@@ -92,7 +92,20 @@ struct ERect
|
||||
#include "midi.h"
|
||||
#include "communication.h"
|
||||
|
||||
#include "VST_sync_shm.h"
|
||||
|
||||
#ifdef LMMS_BUILD_WIN32
|
||||
#define USE_QT_SHMEM
|
||||
#endif
|
||||
|
||||
#ifndef USE_QT_SHMEM
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/ipc.h>
|
||||
#include <sys/shm.h>
|
||||
#endif
|
||||
|
||||
static VstHostLanguages hlang = LanguageEnglish;
|
||||
|
||||
@@ -303,6 +316,18 @@ private:
|
||||
double m_currentSamplePos;
|
||||
int m_currentProgram;
|
||||
|
||||
// host to plugin synchronisation data structure
|
||||
struct in
|
||||
{
|
||||
double lastppqPos;
|
||||
double m_Timestamp;
|
||||
} ;
|
||||
|
||||
in * m_in;
|
||||
|
||||
int m_shmID;
|
||||
sncVST * m_SncVSTplug;
|
||||
|
||||
} ;
|
||||
|
||||
|
||||
@@ -324,23 +349,65 @@ RemoteVstPlugin::RemoteVstPlugin( key_t _shm_in, key_t _shm_out ) :
|
||||
m_midiEvents(),
|
||||
m_bpm( 0 ),
|
||||
m_currentSamplePos( 0 ),
|
||||
m_currentProgram( -1 )
|
||||
m_currentProgram( -1 ),
|
||||
m_in( NULL ),
|
||||
m_shmID( -1 ),
|
||||
m_SncVSTplug( NULL )
|
||||
|
||||
{
|
||||
pthread_mutex_init( &m_pluginLock, NULL );
|
||||
|
||||
__plugin = this;
|
||||
|
||||
#ifndef USE_QT_SHMEM
|
||||
key_t key;
|
||||
if( ( key = ftok( VST_SNC_SHM_KEY_FILE, 'R' ) ) == -1 )
|
||||
{
|
||||
perror( "RemoteVstPlugin.cpp::ftok" );
|
||||
}
|
||||
else
|
||||
{ // connect to shared memory segment
|
||||
if( ( m_shmID = shmget( key, 0, 0 ) ) == -1 )
|
||||
{
|
||||
perror( "RemoteVstPlugin.cpp::shmget" );
|
||||
}
|
||||
else
|
||||
{ // attach segment
|
||||
m_SncVSTplug = (sncVST *)shmat(m_shmID, 0, 0);
|
||||
if( m_SncVSTplug == (sncVST *)( -1 ) )
|
||||
{
|
||||
perror( "RemoteVstPlugin.cpp::shmat" );
|
||||
}
|
||||
}
|
||||
}
|
||||
#else
|
||||
m_SncVSTplug = RemotePluginClient::getQtVSTshm();
|
||||
#endif
|
||||
if( m_SncVSTplug == NULL )
|
||||
{
|
||||
fprintf(stderr, "RemoteVstPlugin.cpp: "
|
||||
"Failed to initialize shared memory for VST synchronization.\n"
|
||||
" (VST-host synchronization will be disabled)\n");
|
||||
m_SncVSTplug = (sncVST*) malloc( sizeof( sncVST ) );
|
||||
m_SncVSTplug->isPlayin = true;
|
||||
m_SncVSTplug->timeSigNumer = 4;
|
||||
m_SncVSTplug->timeSigDenom = 4;
|
||||
m_SncVSTplug->ppqPos = 0;
|
||||
m_SncVSTplug->isCycle = false;
|
||||
m_SncVSTplug->hasSHM = false;
|
||||
m_SncVSTplug->m_sampleRate = sampleRate();
|
||||
}
|
||||
|
||||
m_in = ( in* ) new char[ sizeof( in ) ];
|
||||
m_in->lastppqPos = 0;
|
||||
m_in->m_Timestamp = -1;
|
||||
|
||||
// process until we have loaded the plugin
|
||||
while( 1 )
|
||||
{
|
||||
message m = receiveMessage();
|
||||
processMessage( m );
|
||||
//if( m.id == IdVstLoadPlugin || m.id == IdQuit )
|
||||
|
||||
// IdBufferSizeInformation is sent right after plugin load
|
||||
// otherwise causes deadlocks to FxMixer/EffectChain
|
||||
|
||||
if( m.id == IdBufferSizeInformation || m.id == IdQuit )
|
||||
if( m.id == IdVstLoadPlugin || m.id == IdQuit )
|
||||
{
|
||||
break;
|
||||
}
|
||||
@@ -352,6 +419,21 @@ RemoteVstPlugin::RemoteVstPlugin( key_t _shm_in, key_t _shm_out ) :
|
||||
|
||||
RemoteVstPlugin::~RemoteVstPlugin()
|
||||
{
|
||||
#ifndef USE_QT_SHMEM
|
||||
// detach shared memory segment
|
||||
if( shmdt( m_SncVSTplug ) == -1)
|
||||
{
|
||||
if( __plugin->m_SncVSTplug->hasSHM )
|
||||
{
|
||||
perror( "~RemoteVstPlugin::shmdt" );
|
||||
}
|
||||
if( m_SncVSTplug != NULL )
|
||||
{
|
||||
delete m_SncVSTplug;
|
||||
m_SncVSTplug = NULL;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
if( m_window != NULL )
|
||||
{
|
||||
pluginDispatch( effEditClose );
|
||||
@@ -491,6 +573,12 @@ void RemoteVstPlugin::init( const std::string & _plugin_file )
|
||||
|
||||
updateInOutCount();
|
||||
|
||||
// some plugins have to set samplerate during init
|
||||
if( m_SncVSTplug->hasSHM )
|
||||
{
|
||||
updateSampleRate();
|
||||
}
|
||||
|
||||
/* set program to zero */
|
||||
/* i comment this out because it breaks dfx Geometer
|
||||
* looks like we cant set programs for it
|
||||
@@ -1356,16 +1444,62 @@ intptr_t RemoteVstPlugin::hostCallback( AEffect * _effect, int32_t _opcode,
|
||||
// fields are required (see valid masks above), as some
|
||||
// items may require extensive conversions
|
||||
|
||||
memset( &_timeInfo, 0, sizeof( _timeInfo ) );
|
||||
// Shared memory was initialised? - see song.cpp
|
||||
//assert( __plugin->m_SncVSTplug != NULL );
|
||||
|
||||
memset( &_timeInfo, 0, sizeof( _timeInfo ) );
|
||||
_timeInfo.samplePos = __plugin->m_currentSamplePos;
|
||||
_timeInfo.sampleRate = __plugin->sampleRate();
|
||||
_timeInfo.sampleRate = __plugin->m_SncVSTplug->hasSHM ?
|
||||
__plugin->m_SncVSTplug->m_sampleRate :
|
||||
__plugin->sampleRate();
|
||||
_timeInfo.flags = 0;
|
||||
_timeInfo.tempo = __plugin->m_bpm;
|
||||
_timeInfo.timeSigNumerator = 4;
|
||||
_timeInfo.timeSigDenominator = 4;
|
||||
_timeInfo.flags |= (/* kVstBarsValid|*/kVstTempoValid );
|
||||
_timeInfo.flags |= kVstTransportPlaying;
|
||||
_timeInfo.tempo = __plugin->m_SncVSTplug->hasSHM ?
|
||||
__plugin->m_SncVSTplug->m_bpm :
|
||||
__plugin->m_bpm;
|
||||
_timeInfo.timeSigNumerator = __plugin->m_SncVSTplug->timeSigNumer;
|
||||
_timeInfo.timeSigDenominator = __plugin->m_SncVSTplug->timeSigDenom;
|
||||
_timeInfo.flags |= kVstTempoValid;
|
||||
_timeInfo.flags |= kVstTimeSigValid;
|
||||
|
||||
if( __plugin->m_SncVSTplug->isCycle )
|
||||
{
|
||||
_timeInfo.cycleStartPos = __plugin->m_SncVSTplug->cycleStart;
|
||||
_timeInfo.cycleEndPos = __plugin->m_SncVSTplug->cycleEnd;
|
||||
_timeInfo.flags |= kVstCyclePosValid;
|
||||
_timeInfo.flags |= kVstTransportCycleActive;
|
||||
}
|
||||
|
||||
if( __plugin->m_SncVSTplug->ppqPos !=
|
||||
__plugin->m_in->m_Timestamp )
|
||||
{
|
||||
_timeInfo.ppqPos = __plugin->m_SncVSTplug->ppqPos;
|
||||
_timeInfo.flags |= kVstTransportChanged;
|
||||
__plugin->m_in->lastppqPos = __plugin->m_SncVSTplug->ppqPos;
|
||||
__plugin->m_in->m_Timestamp = __plugin->m_SncVSTplug->ppqPos;
|
||||
}
|
||||
else if( __plugin->m_SncVSTplug->isPlayin )
|
||||
{
|
||||
__plugin->m_in->lastppqPos += (
|
||||
__plugin->m_SncVSTplug->hasSHM ?
|
||||
__plugin->m_SncVSTplug->m_bpm :
|
||||
__plugin->m_bpm ) / (double)10340;
|
||||
_timeInfo.ppqPos = __plugin->m_in->lastppqPos;
|
||||
}
|
||||
// _timeInfo.ppqPos = __plugin->m_SncVSTplug->ppqPos;
|
||||
_timeInfo.flags |= kVstPpqPosValid;
|
||||
|
||||
if( __plugin->m_SncVSTplug->isPlayin )
|
||||
{
|
||||
_timeInfo.flags |= kVstTransportPlaying;
|
||||
}
|
||||
_timeInfo.barStartPos = ( (int) ( _timeInfo.ppqPos /
|
||||
( 4 *__plugin->m_SncVSTplug->timeSigNumer
|
||||
/ (float) __plugin->m_SncVSTplug->timeSigDenom ) ) ) *
|
||||
( 4 * __plugin->m_SncVSTplug->timeSigNumer
|
||||
/ (float) __plugin->m_SncVSTplug->timeSigDenom );
|
||||
|
||||
_timeInfo.flags |= kVstBarsValid;
|
||||
|
||||
#ifdef LMMS_BUILD_WIN64
|
||||
return (long long) &_timeInfo;
|
||||
#else
|
||||
|
||||
Reference in New Issue
Block a user