1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
3 * LADI Session Handler (ladish)
5 * Copyright (C) 2008, 2009, 2010 Nedko Arnaudov <nedko@arnaudov.name>
6 * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
8 **************************************************************************
9 * This file contains the JACK related functionality
10 **************************************************************************
12 * LADI Session Handler is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * LADI Session Handler is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
24 * or write to the Free Software Foundation, Inc.,
25 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
30 #include "graph_view.h"
33 #include "statusbar.h"
35 #include "../proxies/jack_proxy.h"
36 #include "gtk_builder.h"
39 #define JACK_STATE_NA 0
40 #define JACK_STATE_STOPPED 1
41 #define JACK_STATE_STARTED 2
43 unsigned int g_jack_state
= JACK_STATE_NA
;
44 static uint32_t g_xruns
;
45 static double g_jack_max_dsp_load
= 0.0;
46 static GtkWidget
* g_xrun_progress_bar
;
47 static uint32_t g_sample_rate
;
48 static bool g_jack_view_enabled
= false;
49 static graph_view_handle g_jack_view
= NULL
;
50 static guint g_jack_poll_source_tag
;
52 static void update_raw_jack_visibility(void)
54 /* if there is no jack view and its display is enabled and jack is avaialable, create the raw jack view */
55 if (g_jack_view
== NULL
&& g_jack_view_enabled
&& g_jack_state
!= JACK_STATE_NA
)
57 if (!create_view("Raw JACK", JACKDBUS_SERVICE_NAME
, JACKDBUS_OBJECT_PATH
, false, false, true, &g_jack_view
))
59 log_error("create_view() failed for jack");
64 /* if there is jack view and its display is disabled or it is enabled byt jack is not avaialable, destroy the raw jack view */
65 if (g_jack_view
!= NULL
&& (!g_jack_view_enabled
|| g_jack_state
== JACK_STATE_NA
))
67 destroy_view(g_jack_view
);
72 void buffer_size_clear(void)
74 menu_set_jack_latency_items_sensivity(false);
78 static void buffer_size_set(uint32_t size
, bool force
)
81 static uint32_t last_buffer_size
;
83 if (!menu_set_jack_latency(size
, force
))
89 if (size
!= last_buffer_size
)
91 log_info("JACK latency changed: %"PRIu32
" samples", size
);
93 snprintf(buf
, sizeof(buf
), "%4.1f ms (%"PRIu32
")", (float)size
/ (float)g_sample_rate
* 1000.0f
, size
);
94 set_latency_text(buf
);
96 last_buffer_size
= size
;
99 static void update_buffer_size(bool force
)
103 if (jack_proxy_get_buffer_size(&size
))
105 buffer_size_set(size
, force
);
113 static void update_load(void)
119 if (jack_proxy_get_xruns(&xruns
))
121 snprintf(tmp_buf
, sizeof(tmp_buf
), "%" PRIu32
" dropouts", xruns
);
122 set_xruns_text(tmp_buf
);
123 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(g_xrun_progress_bar
), tmp_buf
);
127 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(g_xrun_progress_bar
), "error");
128 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(g_xrun_progress_bar
), 0.0);
132 if (jack_proxy_get_dsp_load(&load
))
134 if (load
> g_jack_max_dsp_load
)
136 g_jack_max_dsp_load
= load
;
137 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(g_xrun_progress_bar
), load
/ 100.0);
140 snprintf(tmp_buf
, sizeof(tmp_buf
), "DSP: %5.1f%% (%5.1f%%)", (float)load
, (float)g_jack_max_dsp_load
);
141 set_dsp_load_text(tmp_buf
);
148 if ((g_xruns
== 0 && xruns
!= 0) || (g_xruns
!= 0 && xruns
== 0))
151 studio_state_changed(NULL
);
159 static gboolean
poll_jack(gpointer data
)
162 update_buffer_size(false);
167 static void jack_appeared(void)
169 log_info("JACK appeared");
171 g_jack_state
= JACK_STATE_STOPPED
;
172 studio_state_changed(NULL
);
173 update_raw_jack_visibility();
176 static void jack_started(void)
178 log_info("JACK started");
180 g_jack_state
= JACK_STATE_STARTED
;
181 studio_state_changed(NULL
);
183 menu_set_jack_latency_items_sensivity(true);
184 update_buffer_size(true);
185 enable_action(g_clear_xruns_and_max_dsp_action
);
187 g_jack_poll_source_tag
= g_timeout_add(100, poll_jack
, NULL
);
190 static void jack_stopped(void)
192 if (g_jack_state
== JACK_STATE_STARTED
)
194 log_info("JACK stopped");
196 g_source_remove(g_jack_poll_source_tag
);
199 g_jack_state
= JACK_STATE_STOPPED
;
200 studio_state_changed(NULL
);
202 menu_set_jack_latency_items_sensivity(false);
204 disable_action(g_clear_xruns_and_max_dsp_action
);
205 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(g_xrun_progress_bar
), 0.0);
208 static void jack_disappeared(void)
210 log_info("JACK disappeared");
214 g_jack_state
= JACK_STATE_NA
;
215 studio_state_changed(NULL
);
216 update_raw_jack_visibility();
219 void clear_xruns_and_max_dsp(void)
221 log_info("clearing xruns and max dsp load");
222 jack_proxy_reset_xruns();
223 g_jack_max_dsp_load
= 0.0;
226 void menu_request_jack_latency_change(uint32_t buffer_size
)
228 log_info("JACK latency change request: %"PRIu32
" samples", buffer_size
);
230 if (!jack_proxy_set_buffer_size(buffer_size
))
232 log_error("cannot set JACK buffer size");
236 void menu_request_jack_configure(void)
239 gchar
* argv
[] = {"ladiconf", NULL
};
242 log_info("JACK configure request");
246 NULL
, /* working directory */
249 G_SPAWN_SEARCH_PATH
, /* flags */
250 NULL
, /* child_setup callback */
251 NULL
, /* user_data */
255 dialog
= get_gtk_builder_widget("error_dialog");
256 gtk_message_dialog_set_markup(GTK_MESSAGE_DIALOG(dialog
), "<b><big>Error executing ladiconf.\nAre LADI Tools installed?</big></b>");
257 gtk_message_dialog_format_secondary_markup(GTK_MESSAGE_DIALOG(dialog
), "%s", error_ptr
->message
);
258 gtk_widget_show(dialog
);
259 gtk_dialog_run(GTK_DIALOG(dialog
));
260 gtk_widget_hide(dialog
);
261 g_error_free(error_ptr
);
265 void menu_request_toggle_raw_jack(bool visible
)
267 //log_info("toogle raw jack visibility -> %s", visible ? "visible" : "invisible");
268 g_jack_view_enabled
= visible
;
269 update_raw_jack_visibility();
272 void init_jack_widgets(void)
274 g_xrun_progress_bar
= get_gtk_builder_widget("xrun_progress_bar");
279 return jack_proxy_init(jack_started
, jack_stopped
, jack_appeared
, jack_disappeared
);
282 void uninit_jack(void)
287 bool jack_xruns(void)
292 void set_xrun_progress_bar_text(const char * text
)
294 gtk_progress_bar_set_text(GTK_PROGRESS_BAR(g_xrun_progress_bar
), text
);
296 /* workaround a bug in GtkProgressBar. it needs fraction change in order to redraw the changed text
297 * GtkProgressBar tracks the dirty state and it is checked before painting, so sending redraw request
298 * through gtk_widget_queue_draw() will not help because expose handler will ignore the redraw request */
299 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(g_xrun_progress_bar
), 1.0);
300 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(g_xrun_progress_bar
), 0.0);
303 void update_jack_sample_rate(void)
305 if (jack_proxy_sample_rate(&g_sample_rate
))
309 if (fmod(g_sample_rate
, 1000.0) != 0.0)
311 snprintf(buf
, sizeof(buf
), "%.1f kHz", (float)g_sample_rate
/ 1000.0f
);
315 snprintf(buf
, sizeof(buf
), "%u kHz", g_sample_rate
/ 1000);
318 set_sample_rate_text(buf
);
322 clear_sample_rate_text();
326 unsigned int get_jack_state(void)