mdw@git.distorted.org.uk Git - disorder/blob - disobedience/disobedience.c

   1 /*
   2  * This file is part of DisOrder.
   3  * Copyright (C) 2006, 2007, 2008 Richard Kettlewell
   4  *
   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.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  18  * USA
  19  */
  20 /** @file disobedience/disobedience.c
  21  * @brief Main Disobedience program
  22  */
  23
  24 #include "disobedience.h"
  25 #include "mixer.h"
  26 #include "version.h"
  27
  28 #include <getopt.h>
  29 #include <locale.h>
  30 #include <pcre.h>
  31
  32 /* Apologies for the numerous de-consting casts, but GLib et al do not seem to
  33  * have heard of const. */
  34
  35 /* Variables --------------------------------------------------------------- */
  36
  37 /** @brief Event loop */
  38 GMainLoop *mainloop;
  39
  40 /** @brief Top-level window */
  41 GtkWidget *toplevel;
  42
  43 /** @brief Label for progress indicator */
  44 GtkWidget *report_label;
  45
  46 /** @brief Main tab group */
  47 GtkWidget *tabs;
  48
  49 /** @brief Main client */
  50 disorder_eclient *client;
  51
  52 /** @brief Log client */
  53 disorder_eclient *logclient;
  54
  55 /** @brief Last reported state
  56  *
  57  * This is updated by log_state().
  58  */
  59 unsigned long last_state;
  60
  61 /** @brief True if some track is playing
  62  *
  63  * This ought to be removed in favour of last_state & DISORDER_PLAYING
  64  */
  65 int playing;
  66
  67 /** @brief Left channel volume */
  68 int volume_l;
  69
  70 /** @brief Right channel volume */
  71 int volume_r;
  72
  73 double goesupto = 10;                   /* volume upper bound */
  74
  75 /** @brief True if a NOP is in flight */
  76 static int nop_in_flight;
  77
  78 /** @brief True if an rtp-address command is in flight */
  79 static int rtp_address_in_flight;
  80
  81 /** @brief Global tooltip group */
  82 GtkTooltips *tips;
  83
  84 /** @brief True if RTP play is available
  85  *
  86  * This is a bit of a bodge...
  87  */
  88 int rtp_supported;
  89
  90 /** @brief True if RTP play is enabled */
  91 int rtp_is_running;
  92
  93 /* Window creation --------------------------------------------------------- */
  94
  95 /* Note that all the client operations kicked off from here will only complete
  96  * after we've entered the event loop. */
  97
  98 /** @brief Called when main window is deleted
  99  *
 100  * Terminates the program.
 101  */
 102 static gboolean delete_event(GtkWidget attribute((unused)) *widget,
 103                              GdkEvent attribute((unused)) *event,
 104                              gpointer attribute((unused)) data) {
 105   D(("delete_event"));
 106   exit(0);                              /* die immediately */
 107 }
 108
 109 /** @brief Called when the current tab is switched
 110  *
 111  * Updates the menu settings to correspond to the new page.
 112  */
 113 static void tab_switched(GtkNotebook attribute((unused)) *notebook,
 114                          GtkNotebookPage attribute((unused)) *page,
 115                          guint page_num,
 116                          gpointer attribute((unused)) user_data) {
 117   menu_update(page_num);
 118 }
 119
 120 /** @brief Create the report box */
 121 static GtkWidget *report_box(void) {
 122   GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
 123
 124   report_label = gtk_label_new("");
 125   gtk_label_set_ellipsize(GTK_LABEL(report_label), PANGO_ELLIPSIZE_END);
 126   gtk_misc_set_alignment(GTK_MISC(report_label), 0, 0);
 127   gtk_container_add(GTK_CONTAINER(vbox), gtk_hseparator_new());
 128   gtk_container_add(GTK_CONTAINER(vbox), report_label);
 129   return vbox;
 130 }
 131
 132 /** @brief Create and populate the main tab group */
 133 static GtkWidget *notebook(void) {
 134   tabs = gtk_notebook_new();
 135   /* The current tab is _NORMAL, the rest are _ACTIVE, which is bizarre but
 136    * produces not too dreadful appearance */
 137   gtk_widget_set_style(tabs, tool_style);
 138   g_signal_connect(tabs, "switch-page", G_CALLBACK(tab_switched), 0);
 139   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), queue_widget(),
 140                            gtk_label_new("Queue"));
 141   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), recent_widget(),
 142                            gtk_label_new("Recent"));
 143   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), choose_widget(),
 144                            gtk_label_new("Choose"));
 145   gtk_notebook_append_page(GTK_NOTEBOOK(tabs), added_widget(),
 146                            gtk_label_new("Added"));
 147   return tabs;
 148 }
 149
 150 /** @brief Create and populate the main window */
 151 static void make_toplevel_window(void) {
 152   GtkWidget *const vbox = gtk_vbox_new(FALSE, 1);
 153   GtkWidget *const rb = report_box();
 154
 155   D(("top_window"));
 156   toplevel = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 157   /* default size is too small */
 158   gtk_window_set_default_size(GTK_WINDOW(toplevel), 640, 480);
 159   /* terminate on close */
 160   g_signal_connect(G_OBJECT(toplevel), "delete_event",
 161                    G_CALLBACK(delete_event), NULL);
 162   /* lay out the window */
 163   gtk_window_set_title(GTK_WINDOW(toplevel), "Disobedience");
 164   gtk_container_add(GTK_CONTAINER(toplevel), vbox);
 165   /* lay out the vbox */
 166   gtk_box_pack_start(GTK_BOX(vbox),
 167                      menubar(toplevel),
 168                      FALSE,             /* expand */
 169                      FALSE,             /* fill */
 170                      0);
 171   gtk_box_pack_start(GTK_BOX(vbox),
 172                      control_widget(),
 173                      FALSE,             /* expand */
 174                      FALSE,             /* fill */
 175                      0);
 176   gtk_container_add(GTK_CONTAINER(vbox), notebook());
 177   gtk_box_pack_end(GTK_BOX(vbox),
 178                    rb,
 179                    FALSE,             /* expand */
 180                    FALSE,             /* fill */
 181                    0);
 182   gtk_widget_set_style(toplevel, tool_style);
 183 }
 184
 185 #if MDEBUG
 186 static int widget_count, container_count;
 187
 188 static void count_callback(GtkWidget *w,
 189                            gpointer attribute((unused)) data) {
 190   ++widget_count;
 191   if(GTK_IS_CONTAINER(w)) {
 192     ++container_count;
 193     gtk_container_foreach(GTK_CONTAINER(w), count_callback, 0);
 194   }
 195 }
 196
 197 static void count_widgets(void) {
 198   widget_count = 0;
 199   container_count = 1;
 200   if(toplevel)
 201     gtk_container_foreach(GTK_CONTAINER(toplevel), count_callback, 0);
 202   fprintf(stderr, "widget count: %8d  container count: %8d\n",
 203           widget_count, container_count);
 204 }
 205 #endif
 206
 207 #if MTRACK
 208 const char *mtag = "init";
 209 static hash *mtrack_hash;
 210
 211 static int *mthfind(const char *tag) {
 212   static const int zero = 0;
 213   int *cp = hash_find(mtrack_hash, tag);
 214   if(!cp) {
 215     hash_add(mtrack_hash, tag, &zero, HASH_INSERT);
 216     cp = hash_find(mtrack_hash, tag);
 217   }
 218   return cp;
 219 }
 220
 221 static void *trap_malloc(size_t n) {
 222   void *ptr = malloc(n + sizeof(char *));
 223
 224   *(const char **)ptr = mtag;
 225   ++*mthfind(mtag);
 226   return (char *)ptr + sizeof(char *);
 227 }
 228
 229 static void trap_free(void *ptr) {
 230   const char *tag;
 231   if(!ptr)
 232     return;
 233   ptr = (char *)ptr - sizeof(char *);
 234   tag = *(const char **)ptr;
 235   --*mthfind(tag);
 236   free(ptr);
 237 }
 238
 239 static void *trap_realloc(void *ptr, size_t n) {
 240   if(!ptr)
 241     return trap_malloc(n);
 242   if(!n) {
 243     trap_free(ptr);
 244     return 0;
 245   }
 246   ptr = (char *)ptr - sizeof(char *);
 247   ptr = realloc(ptr, n + sizeof(char *));
 248   *(const char **)ptr = mtag;
 249   return (char *)ptr + sizeof(char *);
 250 }
 251
 252 static int report_tags_callback(const char *key, void *value,
 253                                 void attribute((unused)) *u) {
 254   fprintf(stderr, "%16s: %d\n", key, *(int *)value);
 255   return 0;
 256 }
 257
 258 static void report_tags(void) {
 259   hash_foreach(mtrack_hash, report_tags_callback, 0);
 260   fprintf(stderr, "\n");
 261 }
 262
 263 static const GMemVTable glib_memvtable = {
 264   trap_malloc,
 265   trap_realloc,
 266   trap_free,
 267   0,
 268   0,
 269   0
 270 };
 271 #endif
 272
 273 /** @brief Called occasionally */
 274 static gboolean periodic_slow(gpointer attribute((unused)) data) {
 275   D(("periodic"));
 276   /* Expire cached data */
 277   cache_expire();
 278   /* Update everything to be sure that the connection to the server hasn't
 279    * mysteriously gone stale on us. */
 280   all_update();
 281 #if MDEBUG
 282   count_widgets();
 283   fprintf(stderr, "cache size: %zu\n", cache_count());
 284 #endif
 285 #if MTRACK
 286   report_tags();
 287 #endif
 288   return TRUE;                          /* don't remove me */
 289 }
 290
 291 /** @brief Called frequently */
 292 static gboolean periodic_fast(gpointer attribute((unused)) data) {
 293 #if 0                                   /* debugging hack */
 294   static struct timeval last;
 295   struct timeval now;
 296   double delta;
 297
 298   xgettimeofday(&now, 0);
 299   if(last.tv_sec) {
 300     delta = (now.tv_sec + now.tv_sec / 1.0E6)
 301       - (last.tv_sec + last.tv_sec / 1.0E6);
 302     if(delta >= 1.0625)
 303       fprintf(stderr, "%f: %fs between 1s heartbeats\n",
 304               now.tv_sec + now.tv_sec / 1.0E6,
 305               delta);
 306   }
 307   last = now;
 308 #endif
 309   if(rtp_supported && mixer_supported(DEFAULT_BACKEND)) {
 310     int nl, nr;
 311     if(!mixer_control(DEFAULT_BACKEND, &nl, &nr, 0)
 312        && (nl != volume_l || nr != volume_r)) {
 313       volume_l = nl;
 314       volume_r = nr;
 315       event_raise("volume-changed", 0);
 316     }
 317   }
 318   return TRUE;
 319 }
 320
 321 /** @brief Called when a NOP completes */
 322 static void nop_completed(void attribute((unused)) *v,
 323                           const char attribute((unused)) *error) {
 324   /* TODO report the error somewhere */
 325   nop_in_flight = 0;
 326 }
 327
 328 /** @brief Called from time to time to arrange for a NOP to be sent
 329  *
 330  * At most one NOP remains in flight at any moment.  If the client is not
 331  * currently connected then no NOP is sent.
 332  */
 333 static gboolean maybe_send_nop(gpointer attribute((unused)) data) {
 334   if(!nop_in_flight && (disorder_eclient_state(client) & DISORDER_CONNECTED)) {
 335     nop_in_flight = 1;
 336     disorder_eclient_nop(client, nop_completed, 0);
 337   }
 338   if(rtp_supported) {
 339     const int rtp_was_running = rtp_is_running;
 340     rtp_is_running = rtp_running();
 341     if(rtp_was_running != rtp_is_running)
 342       event_raise("rtp-changed", 0);
 343   }
 344   return TRUE;                          /* keep call me please */
 345 }
 346
 347 /** @brief Called when a rtp-address command succeeds */
 348 static void got_rtp_address(void attribute((unused)) *v,
 349                             const char *error,
 350                             int attribute((unused)) nvec,
 351                             char attribute((unused)) **vec) {
 352   const int rtp_was_supported = rtp_supported;
 353   const int rtp_was_running = rtp_is_running;
 354
 355   ++suppress_actions;
 356   rtp_address_in_flight = 0;
 357   if(error) {
 358     /* An error just means that we're not using network play */
 359     rtp_supported = 0;
 360     rtp_is_running = 0;
 361   } else {
 362     rtp_supported = 1;
 363     rtp_is_running = rtp_running();
 364   }
 365   if(rtp_supported != rtp_was_supported
 366      || rtp_is_running != rtp_was_running)
 367     event_raise("rtp-changed", 0);
 368   --suppress_actions;
 369 }
 370
 371 /** @brief Called to check whether RTP play is available */
 372 static void check_rtp_address(void) {
 373   if(!rtp_address_in_flight)
 374     disorder_eclient_rtp_address(client, got_rtp_address, NULL);
 375 }
 376
 377 /* main -------------------------------------------------------------------- */
 378
 379 static const struct option options[] = {
 380   { "help", no_argument, 0, 'h' },
 381   { "version", no_argument, 0, 'V' },
 382   { "config", required_argument, 0, 'c' },
 383   { "tufnel", no_argument, 0, 't' },
 384   { "debug", no_argument, 0, 'd' },
 385   { 0, 0, 0, 0 }
 386 };
 387
 388 /* display usage message and terminate */
 389 static void help(void) {
 390   xprintf("Disobedience - GUI client for DisOrder\n"
 391           "\n"
 392           "Usage:\n"
 393           "  disobedience [OPTIONS]\n"
 394           "Options:\n"
 395           "  --help, -h              Display usage message\n"
 396           "  --version, -V           Display version number\n"
 397           "  --config PATH, -c PATH  Set configuration file\n"
 398           "  --debug, -d             Turn on debugging\n"
 399           "\n"
 400           "Also GTK+ options will work.\n");
 401   xfclose(stdout);
 402   exit(0);
 403 }
 404
 405 void logged_in(void) {
 406   /* reset the clients */
 407   disorder_eclient_close(client);
 408   disorder_eclient_close(logclient);
 409   rtp_supported = 0;
 410   event_raise("logged-in", 0);
 411   /* Might be a new server so re-check */
 412   check_rtp_address();
 413 }
 414
 415 int main(int argc, char **argv) {
 416   int n;
 417   gboolean gtkok;
 418
 419   mem_init();
 420   /* garbage-collect PCRE's memory */
 421   pcre_malloc = xmalloc;
 422   pcre_free = xfree;
 423 #if MTRACK
 424   mtrack_hash = hash_new(sizeof (int));
 425   g_mem_set_vtable((GMemVTable *)&glib_memvtable);
 426 #endif
 427   if(!setlocale(LC_CTYPE, "")) fatal(errno, "error calling setlocale");
 428   gtkok = gtk_init_check(&argc, &argv);
 429   while((n = getopt_long(argc, argv, "hVc:dtHC", options, 0)) >= 0) {
 430     switch(n) {
 431     case 'h': help();
 432     case 'V': version("disobedience");
 433     case 'c': configfile = optarg; break;
 434     case 'd': debugging = 1; break;
 435     case 't': goesupto = 11; break;
 436     default: fatal(0, "invalid option");
 437     }
 438   }
 439   if(!gtkok)
 440     fatal(0, "failed to initialize GTK+");
 441   signal(SIGPIPE, SIG_IGN);
 442   init_styles();
 443   load_settings();
 444   /* create the event loop */
 445   D(("create main loop"));
 446   mainloop = g_main_loop_new(0, 0);
 447   if(config_read(0)) fatal(0, "cannot read configuration");
 448   /* create the clients */
 449   if(!(client = gtkclient())
 450      || !(logclient = gtkclient()))
 451     return 1;                           /* already reported an error */
 452   /* periodic operations (e.g. expiring the cache, checking local volume) */
 453   g_timeout_add(600000/*milliseconds*/, periodic_slow, 0);
 454   g_timeout_add(1000/*milliseconds*/, periodic_fast, 0);
 455   /* global tooltips */
 456   tips = gtk_tooltips_new();
 457   make_toplevel_window();
 458   /* reset styles now everything has its name */
 459   gtk_rc_reset_styles(gtk_settings_get_for_screen(gdk_screen_get_default()));
 460   gtk_widget_show_all(toplevel);
 461   /* issue a NOP every so often */
 462   g_timeout_add_full(G_PRIORITY_LOW,
 463                      2000/*interval, ms*/,
 464                      maybe_send_nop,
 465                      0/*data*/,
 466                      0/*notify*/);
 467   /* Start monitoring the log */
 468   disorder_eclient_log(logclient, &log_callbacks, 0);
 469   /* See if RTP play supported */
 470   check_rtp_address();
 471   suppress_actions = 0;
 472   /* If no password is set yet pop up a login box */
 473   if(!config->password)
 474     login_box();
 475   D(("enter main loop"));
 476   MTAG("misc");
 477   g_main_loop_run(mainloop);
 478   return 0;
 479 }
 480
 481 /*
 482 Local Variables:
 483 c-basic-offset:2
 484 comment-column:40
 485 fill-column:79
 486 indent-tabs-mode:nil
 487 End:
 488 */