349 lines
8.3 KiB
C++
349 lines
8.3 KiB
C++
/*
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Copyright (C) 2008 Paul Davis
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Author: Dave Robillard
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <pbd/pthread_utils.h>
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#include <ardour/insert.h>
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#include <ardour/lv2_plugin.h>
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#include <gtkmm2ext/gtk_ui.h>
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#include "ardour_ui.h"
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#include "lv2_plugin_ui.h"
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#include "gui_thread.h"
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using namespace Gtk;
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using namespace ARDOUR;
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using namespace PBD;
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#define NS_UI "http://lv2plug.in/ns/extensions/ui#"
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static SuilHost* ui_host = 0;
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void
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LV2PluginUI::lv2_ui_write(LV2UI_Controller controller,
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uint32_t port_index,
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uint32_t buffer_size,
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uint32_t format,
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const void* buffer)
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{
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LV2PluginUI* me = (LV2PluginUI*)controller;
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if (!Gtkmm2ext::UI::instance()->caller_is_ui_thread()) {
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PBD::notify_gui_about_thread_creation (pthread_self(), me->_lv2->name());
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}
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if (*(float*)buffer != me->_values[port_index]) {
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// cout << "set_parameter " << port_index << ":" << *(float*)buffer << endl;
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me->_lv2->set_parameter(port_index, *(float*)buffer);
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}
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}
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void LV2PluginUI::on_external_ui_closed(LV2UI_Controller controller)
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{
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LV2PluginUI* me = (LV2PluginUI*)controller;
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me->_screen_update_connection.disconnect();
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me->_external_ui_ptr = 0;
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}
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void
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LV2PluginUI::parameter_changed (uint32_t port_index, float val)
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{
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//cout << "parameter_changed" << endl;
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if (val != _values[port_index]) {
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parameter_update(port_index, val);
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}
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}
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void
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LV2PluginUI::parameter_update (uint32_t port_index, float val)
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{
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if (!_inst) {
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return;
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}
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ENSURE_GUI_THREAD(bind (mem_fun (*this, &LV2PluginUI::parameter_update), port_index, val));
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suil_instance_port_event(_inst, port_index, 4, 0, &val);
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_values[port_index] = val;
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}
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bool
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LV2PluginUI::start_updating(GdkEventAny* event)
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{
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//cout << "start_updating" << endl;
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if (!_output_ports.empty()) {
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_screen_update_connection.disconnect();
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_screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
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(mem_fun(*this, &LV2PluginUI::output_update));
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}
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return false;
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}
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bool
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LV2PluginUI::stop_updating(GdkEventAny* event)
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{
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//cout << "stop_updating" << endl;
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if (//!_external_ui_ptr &&
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!_output_ports.empty()) {
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_screen_update_connection.disconnect();
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}
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return false;
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}
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void
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LV2PluginUI::output_update()
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{
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//cout << "output_update" << endl;
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if (_external_ui_ptr) {
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LV2_EXTERNAL_UI_RUN(_external_ui_ptr);
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}
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/* FIXME only works with control output ports (which is all we support now anyway) */
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uint32_t nports = _output_ports.size();
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for (uint32_t i = 0; i < nports; ++i) {
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uint32_t index = _output_ports[i];
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parameter_changed(index, _lv2->get_parameter(index));
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}
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}
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LV2PluginUI::LV2PluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LV2Plugin> lv2p)
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: PlugUIBase (pi)
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, _lv2(lv2p)
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, _current_ui_thread (0)
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, _inst (0)
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, _values (0)
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, _gui_widget (0)
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, _external_ui_ptr (0)
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{
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if (!_lv2->is_external_ui()) {
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lv2ui_instantiate("gtk2gui");
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}
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}
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void
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LV2PluginUI::lv2ui_instantiate(const std::string& title)
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{
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LV2_Feature** features;
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LV2_Feature** features_src;
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LV2_Feature** features_dst;
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size_t features_count;
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bool is_external_ui;
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is_external_ui = _lv2->is_external_ui();
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if (is_external_ui) {
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_external_ui_host.ui_closed = LV2PluginUI::on_external_ui_closed;
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_external_ui_host.plugin_human_id = strdup(title.c_str());
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_external_ui_feature.URI = LV2_EXTERNAL_UI_URI;
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_external_ui_feature.data = &_external_ui_host;
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features_src = features = (LV2_Feature**)_lv2->features();
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features_count = 2;
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while (*features++) {
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features_count++;
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}
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features_dst = features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * features_count);
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features_dst[--features_count] = 0;
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features_dst[--features_count] = &_external_ui_feature;
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while (features_count--) {
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*features++ = *features_src++;
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}
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} else {
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features_dst = (LV2_Feature**)_lv2->features();
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}
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if (!ui_host) {
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ui_host = suil_host_new(LV2PluginUI::lv2_ui_write, 0, 0, 0);
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}
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const char* container_type = (is_external_ui)
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? NS_UI "external"
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: NS_UI "GtkUI";
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const LilvUI* ui = _lv2->lilv_ui();
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_inst = suil_instance_new(
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ui_host,
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this,
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container_type,
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_lv2->uri(),
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lilv_node_as_uri(lilv_ui_get_uri(ui)),
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lilv_node_as_uri(_lv2->ui_type()),
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lilv_uri_to_path(lilv_node_as_uri(lilv_ui_get_bundle_uri(ui))),
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lilv_uri_to_path(lilv_node_as_uri(lilv_ui_get_binary_uri(ui))),
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features_dst);
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if (is_external_ui) {
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free(features_dst);
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}
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uint32_t num_ports = lilv_plugin_get_num_ports(_lv2->lilv_plugin());
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for (uint32_t i = 0; i < num_ports; ++i) {
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if (_lv2->parameter_is_output(i) && _lv2->parameter_is_control(i) && is_update_wanted(i)) {
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_output_ports.push_back(i);
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}
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}
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_external_ui_ptr = 0;
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if (_inst) {
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if (!is_external_ui) {
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GtkWidget* c_widget = (GtkWidget*)suil_instance_get_widget(_inst);
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_gui_widget = Glib::wrap(c_widget);
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_gui_widget->show_all();
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pack_start(*_gui_widget, true, true);
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} else {
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_external_ui_ptr = (struct lv2_external_ui *)suil_instance_get_widget(_inst);
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}
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}
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_values = new float[num_ports];
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for (uint32_t i = 0; i < num_ports; ++i) {
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bool ok;
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uint32_t port = _lv2->nth_parameter(i, ok);
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if (ok) {
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_values[port] = _lv2->get_parameter(port);
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if (_lv2->parameter_is_control(port) && _lv2->parameter_is_input(port)) {
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parameter_update(port, _values[port]);
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}
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}
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}
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_lv2->ParameterChanged.connect(mem_fun(*this, &LV2PluginUI::parameter_changed));
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}
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void
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LV2PluginUI::lv2ui_free()
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{
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stop_updating (0);
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if (_gui_widget) {
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remove (*_gui_widget);
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}
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suil_instance_free((SuilInstance*)_inst);
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_inst = 0;
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_gui_widget = 0;
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}
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LV2PluginUI::~LV2PluginUI ()
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{
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//cout << "LV2PluginUI destructor called" << endl;
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if (_values) {
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delete[] _values;
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}
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/* Close and delete GUI. */
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lv2ui_free();
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_screen_update_connection.disconnect();
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if (_lv2->is_external_ui()) {
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/*external UI is no longer valid - on_window_hide() will not try to use it if is 0*/
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_external_ui_ptr = 0;
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}
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}
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int
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LV2PluginUI::get_preferred_height ()
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{
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Gtk::Requisition r = size_request();
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return r.height;
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}
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int
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LV2PluginUI::get_preferred_width ()
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{
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Gtk::Requisition r = size_request();
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return r.width;
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}
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int
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LV2PluginUI::package (Gtk::Window& win)
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{
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//cout << "package" << endl;
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if (_external_ui_ptr) {
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_win_ptr = &win;
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} else {
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/* forward configure events to plugin window */
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win.signal_configure_event().connect (mem_fun (*this, &LV2PluginUI::configure_handler));
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win.signal_map_event().connect (mem_fun (*this, &LV2PluginUI::start_updating));
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win.signal_unmap_event().connect (mem_fun (*this, &LV2PluginUI::stop_updating));
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}
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return 0;
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}
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bool
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LV2PluginUI::configure_handler (GdkEventConfigure* ev)
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{
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cout << "CONFIGURE" << endl;
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return false;
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}
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bool
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LV2PluginUI::is_update_wanted(uint32_t index)
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{
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/* FIXME this should check the port notification properties, which nobody sets now anyway :) */
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return true;
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}
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bool
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LV2PluginUI::on_window_show(const std::string& title)
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{
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//cout << "on_window_show - " << title << endl; flush(cout);
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if (_lv2->is_external_ui()) {
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if (_external_ui_ptr) {
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LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
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return false;
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}
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lv2ui_instantiate(title);
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if (!_external_ui_ptr) {
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return false;
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}
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LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
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_screen_update_connection.disconnect();
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_screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
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(mem_fun(*this, &LV2PluginUI::output_update));
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return false;
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}
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return true;
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}
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void
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LV2PluginUI::on_window_hide()
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{
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//cout << "on_window_hide" << endl; flush(cout);
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if (_external_ui_ptr) {
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LV2_EXTERNAL_UI_HIDE(_external_ui_ptr);
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//suil_instance_get_descriptor(_inst)->cleanup(_inst);
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//_external_ui_ptr = 0;
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//_screen_update_connection.disconnect();
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}
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}
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