13
0
livetrax/libs/ardour/vst_state.cc

63 lines
2.1 KiB
C++

/*
* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <string.h>
#include "ardour/vst_types.h"
void
vststate_init (VSTState* state) {
memset (state, 0, sizeof (VSTState));
pthread_mutex_init (&state->lock, 0);
pthread_mutex_init (&state->state_lock, 0);
pthread_cond_init (&state->window_status_change, 0);
pthread_cond_init (&state->plugin_dispatcher_called, 0);
pthread_cond_init (&state->window_created, 0);
state->want_program = -1;
}
/* This is to be called while handling VST UI events.
*
* Many plugins expect program dispatch from the GUI event-loop
* only (VSTPlugin::load_plugin_preset/set_chunk is invoked by
* the user in ardour's main GUI thread, which on Windows and Linux
* may *not* the VST event loop).
*/
void
vststate_maybe_set_program (VSTState* state)
{
if (state->want_program != -1) {
if (state->vst_version >= 2) {
state->plugin->dispatcher (state->plugin, effBeginSetProgram, 0, 0, NULL, 0);
}
state->plugin->dispatcher (state->plugin, effSetProgram, 0, state->want_program, NULL, 0);
if (state->vst_version >= 2) {
state->plugin->dispatcher (state->plugin, effEndSetProgram, 0, 0, NULL, 0);
}
state->want_program = -1;
}
if (state->want_chunk == 1) {
pthread_mutex_lock (&state->state_lock);
state->plugin->dispatcher (state->plugin, 24 /* effSetChunk */, 1, state->wanted_chunk_size, state->wanted_chunk, 0);
state->want_chunk = 0;
pthread_mutex_unlock (&state->state_lock);
}
}