+++ /dev/null
-/*
- 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.
-
-*/
-
-/******************************************************/
-/*The big 'audio master' callback for linuxVST plugins*/
-/******************************************************/
-
-
-#include <stdbool.h>
-#include <cstdio>
-#include <stdint.h>
-#include "ardour/vstfx.h"
-#include "ardour/vestige/aeffectx.h"
-
-#include "ardour/session.h"
-#include "ardour/tempo.h"
-#include "ardour/lxvst_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;
-
-intptr_t Session::lxvst_callback (AEffect* effect,
- int32_t opcode,
- int32_t index,
- intptr_t value,
- void* ptr,
- float opt)
-{
- static VstTimeInfo _timeInfo;
- LXVSTPlugin* plug;
- Session* session;
-
- if (debug_callbacks < 0)
- {
- debug_callbacks = (getenv ("ARDOUR_DEBUG_VST_CALLBACKS") != 0);
- }
-
- if (effect && effect->user)
- {
- plug = (LXVSTPlugin*) (effect->user);
- session = &plug->session();
- SHOW_CALLBACK ("am callback 0x%x, opcode = %d, plugin = \"%s\" ", (unsigned int)pthread_self(), opcode, plug->name());
- }
- else
- {
- plug = 0;
- session = 0;
- SHOW_CALLBACK ("am callback 0x%x, opcode = %d", (unsigned int)pthread_self(), opcode);
- }
-
- switch(opcode){
-
- case audioMasterAutomate:
- SHOW_CALLBACK ("amc: audioMasterAutomate\n");
-
- // index, value, returns 0
- if (effect) {
- effect->setParameter (effect, 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
- 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);
- }
- // NOTE: 'kVstBarsValid' is no longer defined in vestige headers -- I have no idea how important this is
- /*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->state()->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 ("LXVST master dispatcher: undefed: %d\n", (int)opcode);
- break;
- }
-
- return 0;
-}
-
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