2 Copyright (C) 2008 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "ardour/processor.h"
22 #include "ardour/lv2_plugin.h"
24 #include "ardour_ui.h"
25 #include "lv2_plugin_ui.h"
28 using namespace ARDOUR;
31 std::vector<struct lv2_external_ui*> g_external_uis;
33 void close_external_ui_windows()
35 struct lv2_external_ui* external_ui_ptr;
37 //cout << "close_external_ui_windows" << endl;
39 while (!g_external_uis.empty()) {
40 //cout << "pop" << endl;
41 external_ui_ptr = g_external_uis.back();
42 LV2_EXTERNAL_UI_HIDE(external_ui_ptr);
43 g_external_uis.pop_back();
48 LV2PluginUI::lv2_ui_write(
49 LV2UI_Controller controller,
51 uint32_t /*buffer_size*/,
55 //cout << "lv2_ui_write" << endl;
56 LV2PluginUI* me = (LV2PluginUI*)controller;
57 if (*(float*)buffer != me->_values[port_index]) {
58 //cout << "set_parameter " << port_index << ":" << *(float*)buffer << endl;
59 me->_lv2->set_parameter(port_index, *(float*)buffer);
63 void LV2PluginUI::on_external_ui_closed(LV2UI_Controller controller)
65 //cout << "on_external_ui_closed" << endl;
67 LV2PluginUI* me = (LV2PluginUI*)controller;
68 me->_screen_update_connection.disconnect();
69 //me->insert->set_gui(0);
71 for (std::vector<struct lv2_external_ui*>::iterator it = g_external_uis.begin() ; it < g_external_uis.end(); it++) {
72 if (*it == me->_external_ui_ptr) {
73 g_external_uis.erase(it);
77 //slv2_ui_instance_get_descriptor(me->_inst)->cleanup(me->_inst);
78 me->_external_ui_ptr = NULL;
82 LV2PluginUI::parameter_changed (uint32_t port_index, float val)
84 //cout << "parameter_changed" << endl;
85 if (val != _values[port_index]) {
86 parameter_update(port_index, val);
91 LV2PluginUI::parameter_update (uint32_t port_index, float val)
97 const LV2UI_Descriptor* ui_desc = slv2_ui_instance_get_descriptor(_inst);
98 LV2UI_Handle ui_handle = slv2_ui_instance_get_handle(_inst);
99 if (ui_desc->port_event)
100 ui_desc->port_event(ui_handle, port_index, 4, 0, &val);
101 _values[port_index] = val;
105 LV2PluginUI::start_updating(GdkEventAny*)
107 if (!_output_ports.empty()) {
108 _screen_update_connection.disconnect();
109 _screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
110 (mem_fun(*this, &LV2PluginUI::output_update));
116 LV2PluginUI::stop_updating(GdkEventAny*)
118 //cout << "stop_updating" << endl;
120 if (//!_external_ui_ptr &&
121 !_output_ports.empty()) {
122 _screen_update_connection.disconnect();
128 LV2PluginUI::output_update()
130 //cout << "output_update" << endl;
131 if (_external_ui_ptr) {
132 LV2_EXTERNAL_UI_RUN(_external_ui_ptr);
135 /* FIXME only works with control output ports (which is all we support now anyway) */
136 uint32_t nports = _output_ports.size();
137 for (uint32_t i = 0; i < nports; ++i) {
138 uint32_t index = _output_ports[i];
139 parameter_changed(index, _lv2->get_parameter(index));
144 LV2PluginUI::LV2PluginUI (boost::shared_ptr<PluginInsert> pi, boost::shared_ptr<LV2Plugin> lv2p)
149 , _external_ui_ptr(NULL)
151 if (!_lv2->is_external_ui()) {
152 lv2ui_instantiate("gtk2gui");
157 LV2PluginUI::lv2ui_instantiate(const Glib::ustring& title)
159 LV2_Feature** features;
160 LV2_Feature** features_src;
161 LV2_Feature** features_dst;
162 size_t features_count;
165 is_external_ui = _lv2->is_external_ui();
167 if (is_external_ui) {
168 _external_ui_host.ui_closed = LV2PluginUI::on_external_ui_closed;
169 _external_ui_host.plugin_human_id = strdup(title.c_str());
171 _external_ui_feature.URI = LV2_EXTERNAL_UI_URI;
172 _external_ui_feature.data = &_external_ui_host;
174 features_src = features = (LV2_Feature**)_lv2->features();
176 while (*features++) {
180 features_dst = features = (LV2_Feature**)malloc(sizeof(LV2_Feature*) * features_count);
181 features_dst[--features_count] = NULL;
182 features_dst[--features_count] = &_external_ui_feature;
183 while (features_count--) {
184 *features++ = *features_src++;
187 features_dst = (LV2_Feature**)_lv2->features();
190 _inst = slv2_ui_instantiate(
191 _lv2->slv2_plugin(), _lv2->slv2_ui(), LV2PluginUI::lv2_ui_write, this,
194 if (is_external_ui) {
198 uint32_t num_ports = slv2_plugin_get_num_ports(_lv2->slv2_plugin());
199 for (uint32_t i = 0; i < num_ports; ++i) {
200 if (_lv2->parameter_is_output(i) && _lv2->parameter_is_control(i) && is_update_wanted(i)) {
201 _output_ports.push_back(i);
205 _external_ui_ptr = NULL;
207 if (!is_external_ui) {
208 GtkWidget* c_widget = (GtkWidget*)slv2_ui_instance_get_widget(_inst);
209 _gui_widget = Glib::wrap(c_widget);
210 _gui_widget->show_all();
211 pack_start(*_gui_widget, true, true);
213 _external_ui_ptr = (struct lv2_external_ui *)slv2_ui_instance_get_widget(_inst);
214 g_external_uis.push_back(_external_ui_ptr);
218 _values = new float[num_ports];
219 for (uint32_t i = 0; i < num_ports; ++i) {
221 uint32_t port = _lv2->nth_parameter(i, ok);
223 _values[port] = _lv2->get_parameter(port);
224 if (_lv2->parameter_is_control(port) && _lv2->parameter_is_input(port)) {
225 parameter_update(port, _values[port]);
230 _lv2->ParameterChanged.connect(mem_fun(*this, &LV2PluginUI::parameter_changed));
233 LV2PluginUI::~LV2PluginUI ()
235 //cout << "LV2PluginUI destructor called" << endl;
240 // plugin destructor destroys the GTK GUI
244 LV2PluginUI::get_preferred_height ()
246 Gtk::Requisition r = size_request();
251 LV2PluginUI::get_preferred_width ()
253 Gtk::Requisition r = size_request();
258 LV2PluginUI::package (Gtk::Window& win)
260 //cout << "package" << endl;
261 if (_external_ui_ptr) {
264 /* forward configure events to plugin window */
265 win.signal_configure_event().connect (mem_fun (*this, &LV2PluginUI::configure_handler));
266 win.signal_map_event().connect (mem_fun (*this, &LV2PluginUI::start_updating));
267 win.signal_unmap_event().connect (mem_fun (*this, &LV2PluginUI::stop_updating));
273 LV2PluginUI::configure_handler (GdkEventConfigure*)
275 std::cout << "CONFIGURE" << std::endl;
280 LV2PluginUI::is_update_wanted(uint32_t /*index*/)
282 /* FIXME this should check the port notification properties, which nobody sets now anyway :) */
287 LV2PluginUI::on_window_show(const Glib::ustring& title)
289 //cout << "on_window_show - " << title << endl; flush(cout);
291 if (_lv2->is_external_ui()) {
292 if (_external_ui_ptr) {
293 LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
296 lv2ui_instantiate(title);
297 if (!_external_ui_ptr) {
301 LV2_EXTERNAL_UI_SHOW(_external_ui_ptr);
302 _screen_update_connection.disconnect();
303 _screen_update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect
304 (mem_fun(*this, &LV2PluginUI::output_update));
312 LV2PluginUI::on_window_hide()
314 //cout << "on_window_hide" << endl; flush(cout);
316 if (_external_ui_ptr) {
317 LV2_EXTERNAL_UI_HIDE(_external_ui_ptr);
318 //slv2_ui_instance_get_descriptor(_inst)->cleanup(_inst);
319 //_external_ui_ptr = NULL;
320 //_screen_update_connection.disconnect();