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livetrax/libs/ardour/session_vst.cc
Carl Hetherington 5f4bdb233a Clean up plugin preset handling a bit.
git-svn-id: svn://localhost/ardour2/branches/3.0@8301 d708f5d6-7413-0410-9779-e7cbd77b26cf
2010-12-19 23:11:01 +00:00

358 lines
10 KiB
C++

/*
Copyright (C) 2004
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdbool.h>
#include <cstdio>
#include <fst.h>
#include <fst/vestige/aeffectx.h>
#include "ardour/session.h"
#include "ardour/tempo.h"
#include "ardour/vst_plugin.h"
#include "i18n.h"
#define DEBUG_CALLBACKS
static int debug_callbacks = -1;
#ifdef DEBUG_CALLBACKS
#define SHOW_CALLBACK if (debug_callbacks) printf
#else
#define SHOW_CALLBACK(...)
#endif
using namespace ARDOUR;
long Session::vst_callback (AEffect* effect,
long opcode,
long index,
long value,
void* ptr,
float opt)
{
static VstTimeInfo _timeInfo;
VSTPlugin* plug;
Session* session;
if (debug_callbacks < 0) {
debug_callbacks = (getenv ("ARDOUR_DEBUG_VST_CALLBACKS") != 0);
}
if (effect && effect->user) {
plug = (VSTPlugin*) (effect->user);
session = &plug->session();
SHOW_CALLBACK ("am callback 0x%x, opcode = %ld, plugin = \"%s\" ", (int) pthread_self(), opcode, plug->name());
} else {
plug = 0;
session = 0;
SHOW_CALLBACK ("am callback 0x%x, opcode = %ld", (int) pthread_self(), opcode);
}
switch(opcode){
case audioMasterAutomate:
SHOW_CALLBACK ("amc: audioMasterAutomate\n");
// index, value, returns 0
if (plug) {
plug->set_parameter (index, opt);
}
return 0;
case audioMasterVersion:
SHOW_CALLBACK ("amc: audioMasterVersion\n");
// vst version, currently 2 (0 for older)
return 2;
case audioMasterCurrentId:
SHOW_CALLBACK ("amc: audioMasterCurrentId\n");
// returns the unique id of a plug that's currently
// loading
return 0;
case audioMasterIdle:
SHOW_CALLBACK ("amc: audioMasterIdle\n");
// call application idle routine (this will
// call effEditIdle for all open editors too)
if (effect) {
effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
}
return 0;
case audioMasterPinConnected:
SHOW_CALLBACK ("amc: audioMasterPinConnected\n");
// inquire if an input or output is beeing connected;
// index enumerates input or output counting from zero:
// value is 0 for input and != 0 otherwise. note: the
// return value is 0 for <true> such that older versions
// will always return true.
return 1;
case audioMasterWantMidi:
SHOW_CALLBACK ("amc: audioMasterWantMidi\n");
// <value> is a filter which is currently ignored
if (plug) {
plug->get_info()->n_inputs.set_midi (1);
}
return 0;
case audioMasterGetTime:
SHOW_CALLBACK ("amc: audioMasterGetTime\n");
// returns const VstTimeInfo* (or 0 if not supported)
// <value> should contain a mask indicating which fields are required
// (see valid masks above), as some items may require extensive
// conversions
memset(&_timeInfo, 0, sizeof(_timeInfo));
if (session) {
_timeInfo.samplePos = session->transport_frame();
_timeInfo.sampleRate = session->frame_rate();
_timeInfo.flags = 0;
if (value & (kVstTempoValid)) {
const Tempo& t (session->tempo_map().tempo_at (session->transport_frame()));
_timeInfo.tempo = t.beats_per_minute ();
_timeInfo.flags |= (kVstTempoValid);
}
if (value & (kVstBarsValid)) {
const Meter& m (session->tempo_map().meter_at (session->transport_frame()));
_timeInfo.timeSigNumerator = m.beats_per_bar ();
_timeInfo.timeSigDenominator = m.note_divisor ();
_timeInfo.flags |= (kVstBarsValid);
}
if (session->transport_speed() != 0.0f) {
_timeInfo.flags |= kVstTransportPlaying;
}
}
return (long)&_timeInfo;
case audioMasterProcessEvents:
SHOW_CALLBACK ("amc: audioMasterProcessEvents\n");
// VstEvents* in <ptr>
return 0;
case audioMasterSetTime:
SHOW_CALLBACK ("amc: audioMasterSetTime\n");
// VstTimenfo* in <ptr>, filter in <value>, not supported
case audioMasterTempoAt:
SHOW_CALLBACK ("amc: audioMasterTempoAt\n");
// returns tempo (in bpm * 10000) at sample frame location passed in <value>
if (session) {
const Tempo& t (session->tempo_map().tempo_at (value));
return t.beats_per_minute() * 1000;
} else {
return 0;
}
break;
case audioMasterGetNumAutomatableParameters:
SHOW_CALLBACK ("amc: audioMasterGetNumAutomatableParameters\n");
return 0;
case audioMasterGetParameterQuantization:
SHOW_CALLBACK ("amc: audioMasterGetParameterQuantization\n");
// returns the integer value for +1.0 representation,
// or 1 if full single float precision is maintained
// in automation. parameter index in <value> (-1: all, any)
return 0;
case audioMasterIOChanged:
SHOW_CALLBACK ("amc: audioMasterIOChanged\n");
// numInputs and/or numOutputs has changed
return 0;
case audioMasterNeedIdle:
SHOW_CALLBACK ("amc: audioMasterNeedIdle\n");
// plug needs idle calls (outside its editor window)
if (plug) {
plug->fst()->wantIdle = 1;
}
return 0;
case audioMasterSizeWindow:
SHOW_CALLBACK ("amc: audioMasterSizeWindow\n");
// index: width, value: height
return 0;
case audioMasterGetSampleRate:
SHOW_CALLBACK ("amc: audioMasterGetSampleRate\n");
if (session) {
return session->frame_rate();
}
return 0;
case audioMasterGetBlockSize:
SHOW_CALLBACK ("amc: audioMasterGetBlockSize\n");
if (session) {
return session->get_block_size();
}
return 0;
case audioMasterGetInputLatency:
SHOW_CALLBACK ("amc: audioMasterGetInputLatency\n");
return 0;
case audioMasterGetOutputLatency:
SHOW_CALLBACK ("amc: audioMasterGetOutputLatency\n");
return 0;
case audioMasterGetPreviousPlug:
SHOW_CALLBACK ("amc: audioMasterGetPreviousPlug\n");
// input pin in <value> (-1: first to come), returns cEffect*
return 0;
case audioMasterGetNextPlug:
SHOW_CALLBACK ("amc: audioMasterGetNextPlug\n");
// output pin in <value> (-1: first to come), returns cEffect*
case audioMasterWillReplaceOrAccumulate:
SHOW_CALLBACK ("amc: audioMasterWillReplaceOrAccumulate\n");
// returns: 0: not supported, 1: replace, 2: accumulate
return 0;
case audioMasterGetCurrentProcessLevel:
SHOW_CALLBACK ("amc: audioMasterGetCurrentProcessLevel\n");
// returns: 0: not supported,
// 1: currently in user thread (gui)
// 2: currently in audio thread (where process is called)
// 3: currently in 'sequencer' thread (midi, timer etc)
// 4: currently offline processing and thus in user thread
// other: not defined, but probably pre-empting user thread.
return 0;
case audioMasterGetAutomationState:
SHOW_CALLBACK ("amc: audioMasterGetAutomationState\n");
// returns 0: not supported, 1: off, 2:read, 3:write, 4:read/write
// offline
return 0;
case audioMasterOfflineStart:
SHOW_CALLBACK ("amc: audioMasterOfflineStart\n");
case audioMasterOfflineRead:
SHOW_CALLBACK ("amc: audioMasterOfflineRead\n");
// ptr points to offline structure, see below. return 0: error, 1 ok
return 0;
case audioMasterOfflineWrite:
SHOW_CALLBACK ("amc: audioMasterOfflineWrite\n");
// same as read
return 0;
case audioMasterOfflineGetCurrentPass:
SHOW_CALLBACK ("amc: audioMasterOfflineGetCurrentPass\n");
case audioMasterOfflineGetCurrentMetaPass:
SHOW_CALLBACK ("amc: audioMasterOfflineGetCurrentMetaPass\n");
return 0;
case audioMasterSetOutputSampleRate:
SHOW_CALLBACK ("amc: audioMasterSetOutputSampleRate\n");
// for variable i/o, sample rate in <opt>
return 0;
case audioMasterGetSpeakerArrangement:
SHOW_CALLBACK ("amc: audioMasterGetSpeakerArrangement\n");
// (long)input in <value>, output in <ptr>
return 0;
case audioMasterGetVendorString:
SHOW_CALLBACK ("amc: audioMasterGetVendorString\n");
// fills <ptr> with a string identifying the vendor (max 64 char)
strcpy ((char*) ptr, "Linux Audio Systems");
return 0;
case audioMasterGetProductString:
SHOW_CALLBACK ("amc: audioMasterGetProductString\n");
// fills <ptr> with a string with product name (max 64 char)
strcpy ((char*) ptr, "Ardour");
return 0;
case audioMasterGetVendorVersion:
SHOW_CALLBACK ("amc: audioMasterGetVendorVersion\n");
// returns vendor-specific version
return 900;
case audioMasterVendorSpecific:
SHOW_CALLBACK ("amc: audioMasterVendorSpecific\n");
// no definition, vendor specific handling
return 0;
case audioMasterSetIcon:
SHOW_CALLBACK ("amc: audioMasterSetIcon\n");
// void* in <ptr>, format not defined yet
return 0;
case audioMasterCanDo:
SHOW_CALLBACK ("amc: audioMasterCanDo\n");
// string in ptr, see below
return 0;
case audioMasterGetLanguage:
SHOW_CALLBACK ("amc: audioMasterGetLanguage\n");
// see enum
return 0;
case audioMasterOpenWindow:
SHOW_CALLBACK ("amc: audioMasterOpenWindow\n");
// returns platform specific ptr
return 0;
case audioMasterCloseWindow:
SHOW_CALLBACK ("amc: audioMasterCloseWindow\n");
// close window, platform specific handle in <ptr>
return 0;
case audioMasterGetDirectory:
SHOW_CALLBACK ("amc: audioMasterGetDirectory\n");
// get plug directory, FSSpec on MAC, else char*
return 0;
case audioMasterUpdateDisplay:
SHOW_CALLBACK ("amc: audioMasterUpdateDisplay\n");
// something has changed, update 'multi-fx' display
if (effect) {
effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
}
return 0;
case audioMasterBeginEdit:
SHOW_CALLBACK ("amc: audioMasterBeginEdit\n");
// begin of automation session (when mouse down), parameter index in <index>
return 0;
case audioMasterEndEdit:
SHOW_CALLBACK ("amc: audioMasterEndEdit\n");
// end of automation session (when mouse up), parameter index in <index>
return 0;
case audioMasterOpenFileSelector:
SHOW_CALLBACK ("amc: audioMasterOpenFileSelector\n");
// open a fileselector window with VstFileSelect* in <ptr>
return 0;
default:
SHOW_CALLBACK ("VST master dispatcher: undefed: %ld\n", opcode);
break;
}
return 0;
}