vcs.maemo.org Git - drnoksnes/blob - platform/osso.cpp

   1 #include <stdio.h>
   2
   3 #include "snes9x.h"
   4
   5 #include <glib.h>
   6 #include <libosso.h>
   7 #include <gconf/gconf.h>
   8 #include <gconf/gconf-client.h>
   9
  10 #include "platform.h"
  11 #include "osso.h"
  12 #include "../gui/gconf.h"
  13
  14 static GMainContext *mainContext;
  15 static GMainLoop *mainLoop;
  16 osso_context_t *ossoContext;
  17
  18 static volatile enum {
  19         STARTUP_COMMAND_INVALID = -1,
  20         STARTUP_COMMAND_UNKNOWN = 0,
  21         STARTUP_COMMAND_RUN,
  22         STARTUP_COMMAND_CONTINUE,
  23         STARTUP_COMMAND_RESTART,
  24         STARTUP_COMMAND_QUIT
  25 } startupCommand;
  26
  27 static void createActionMappingsOnly();
  28 static void parseGConfKeyMappings(GConfClient* gcc);
  29
  30 static gint ossoAppCallback(const gchar *interface, const gchar *method,
  31   GArray *arguments, gpointer data, osso_rpc_t *retval)
  32 {
  33         retval->type = DBUS_TYPE_BOOLEAN;
  34
  35         if (startupCommand == STARTUP_COMMAND_UNKNOWN) {
  36                 // Only if we haven't received the startup command yet.
  37                 printf("Osso: Startup method is: %s\n", method);
  38
  39                 if (strcmp(method, "game_run") == 0) {
  40                         startupCommand = STARTUP_COMMAND_RUN;
  41                         retval->value.b = TRUE;
  42                 } else if (strcmp(method, "game_continue") == 0) {
  43                         startupCommand = STARTUP_COMMAND_CONTINUE;
  44                         retval->value.b = TRUE;
  45                 } else if (strcmp(method, "game_restart") == 0) {
  46                         startupCommand = STARTUP_COMMAND_RESTART;
  47                         retval->value.b = TRUE;
  48                 } else if (strcmp(method, "game_close") == 0) {
  49                         // A bit weird, but could happen
  50                         startupCommand = STARTUP_COMMAND_QUIT;
  51                         retval->value.b = TRUE;
  52                 } else {
  53                         startupCommand = STARTUP_COMMAND_INVALID;
  54                         retval->value.b = FALSE;
  55                 }
  56         } else {
  57                 if (strcmp(method, "game_close") == 0) {
  58                         printf("Osso: quitting because of D-Bus close message\n");
  59                         S9xDoAction(kActionQuit);
  60                         retval->value.b = TRUE;
  61                 } else {
  62                         retval->value.b = FALSE;
  63                 }
  64         }
  65
  66         return OSSO_OK;
  67 }
  68
  69 static void ossoHwCallback(osso_hw_state_t *state, gpointer data)
  70 {
  71         if (state->shutdown_ind) {
  72                 // Shutting down. Try to quit gracefully.
  73                 S9xDoAction(kActionQuit);
  74         }
  75         if (Config.saver && state->system_inactivity_ind) {
  76                 // Screen went off, and power saving is active.
  77                 S9xDoAction(kActionQuit);
  78         }
  79 }
  80
  81 /** Called from main(), initializes Glib & libosso stuff if needed. */
  82 void OssoInit()
  83 {
  84         char *dbusLaunch = getenv("DRNOKSNES_DBUS");
  85
  86         if (!dbusLaunch || dbusLaunch[0] != 'y') {
  87                 // Not launched from GUI, so we don't assume GUI features.
  88                 ossoContext = 0;
  89                 return;
  90         }
  91
  92         g_type_init();
  93         g_set_prgname("drnoksnes");
  94         g_set_application_name("DrNokSnes");
  95         mainContext = g_main_context_default();
  96         mainLoop = g_main_loop_new(mainContext, FALSE);
  97         ossoContext = osso_initialize("com.javispedro.drnoksnes", "1", 0, 0);
  98
  99         if (!ossoContext) {
 100                 fprintf(stderr, "Error initializing libosso\n");
 101                 exit(2);
 102         }
 103
 104         // At this point, we still don't know what the startup command is
 105         startupCommand = STARTUP_COMMAND_UNKNOWN;
 106
 107         osso_return_t ret;
 108         ret = osso_rpc_set_default_cb_f(ossoContext, ossoAppCallback, 0);
 109         g_warn_if_fail(ret == OSSO_OK);
 110
 111         osso_hw_state_t hwStateFlags = { FALSE };
 112         hwStateFlags.shutdown_ind = TRUE;
 113         hwStateFlags.system_inactivity_ind = TRUE;
 114         ret = osso_hw_set_event_cb(ossoContext, &hwStateFlags, ossoHwCallback, 0);
 115         g_warn_if_fail(ret == OSSO_OK);
 116
 117         printf("Osso: Initialized libosso\n");
 118 }
 119
 120 static osso_return_t invokeLauncherMethod(const char *method, osso_rpc_t *retval)
 121 {
 122         // The launcher seems to assume there is at least one parameter,
 123         // even if the method doesn't actually require one.
 124         return osso_rpc_run(ossoContext, "com.javispedro.drnoksnes.startup",
 125                 "/com/javispedro/drnoksnes/startup", "com.javispedro.drnoksnes.startup",
 126                 method, retval, DBUS_TYPE_INVALID);
 127 }
 128
 129 void OssoDeinit()
 130 {
 131         if (!OssoOk()) return;
 132
 133         // Send a goodbye message to the launcher
 134         osso_return_t ret;
 135         osso_rpc_t retval = { 0 };
 136         if (Config.snapshotSave) {
 137                 // If we saved game state, notify launcher to enter "paused" status.
 138                 ret = invokeLauncherMethod("game_pause", &retval);
 139         } else {
 140                 ret = invokeLauncherMethod("game_close", &retval);
 141         }
 142         if (ret != OSSO_OK) {
 143                 printf("Osso: failed to notify launcher\n");
 144         }
 145         osso_rpc_free_val(&retval);
 146
 147         osso_deinitialize(ossoContext);
 148         g_main_loop_unref(mainLoop);
 149         g_main_context_unref(mainContext);
 150
 151         ossoContext = 0;
 152 }
 153
 154 /** Called after loading the config file, loads settings from gconf. */
 155 void OssoConfig()
 156 {
 157         if (!OssoOk()) return;
 158
 159         GConfClient *gcc = gconf_client_get_default();
 160
 161         // GUI only allows fullscreen
 162         Config.fullscreen = true;
 163
 164         // Get ROM filename from Gconf
 165         gchar *romFile = gconf_client_get_string(gcc, kGConfRomFile, 0);
 166         if (romFile && strlen(romFile) > 0) {
 167                 S9xSetRomFile(romFile);
 168         } else {
 169                 printf("Exiting gracefully because there's no ROM in Gconf\n");
 170                 OssoDeinit();
 171                 exit(0);
 172         }
 173
 174         // Read most of the non-player specific settings
 175         Config.saver = gconf_client_get_bool(gcc, kGConfSaver, 0);
 176         Config.enableAudio = gconf_client_get_bool(gcc, kGConfSound, 0);
 177         Settings.TurboMode = gconf_client_get_bool(gcc, kGConfTurboMode, 0);
 178         Settings.Transparency = gconf_client_get_bool(gcc, kGConfTransparency, 0);
 179         Settings.DisplayFrameRate = gconf_client_get_bool(gcc, kGConfDisplayFramerate, 0);
 180
 181         int frameskip = gconf_client_get_int(gcc, kGConfFrameskip, 0);
 182         Settings.SkipFrames = (frameskip > 0 ? frameskip : AUTO_FRAMERATE);
 183
 184         gchar *scaler = gconf_client_get_string(gcc, kGConfScaler, 0);
 185         if (scaler && strlen(scaler) > 0) {
 186                 free(Config.scaler);
 187                 Config.scaler = strdup(scaler);
 188         }
 189         g_free(scaler);
 190
 191         int speedhacks = gconf_client_get_int(gcc, kGConfSpeedhacks, 0);
 192         if (speedhacks <= 0) {
 193                 Settings.HacksEnabled = FALSE;
 194                 Settings.HacksFilter = FALSE;
 195         } else if (speedhacks == 1) {
 196                 Settings.HacksEnabled = TRUE;
 197                 Settings.HacksFilter = TRUE;
 198         } else {
 199                 Settings.HacksEnabled = TRUE;
 200                 Settings.HacksFilter = FALSE;
 201         }
 202
 203         if (Settings.HacksEnabled && !Config.hacksFile) {
 204                 // Provide a default speedhacks file
 205                 gchar *romDir = g_path_get_dirname(romFile);
 206                 if (asprintf(&Config.hacksFile, "%s/snesadvance.dat", romDir)
 207                                 < 0) {
 208                         Config.hacksFile = 0; // malloc error.
 209                 }
 210                 g_free(romDir);
 211         }
 212
 213         g_free(romFile);
 214
 215         // Read player 1 controls
 216         gchar key[kGConfPlayerPathBufferLen];
 217         gchar *relKey = key + sprintf(key, kGConfPlayerPath, 1);
 218
 219         strcpy(relKey, kGConfPlayerKeyboardEnable);
 220         if (gconf_client_get_bool(gcc, key, NULL)) {
 221                 parseGConfKeyMappings(gcc);
 222         } else {
 223                 createActionMappingsOnly();
 224         }
 225
 226         // Iterate the event loop since we want to catch the initial dbus messages
 227         while (startupCommand == STARTUP_COMMAND_UNKNOWN) {
 228                 // This is not busylooping since we are blocking here
 229                 g_main_context_iteration(mainContext, TRUE);
 230         }
 231
 232         // The command we received from the launcher will tell us if we have to
 233         // load a snapshot file.
 234         switch (startupCommand) {
 235                 case STARTUP_COMMAND_RUN:
 236                 case STARTUP_COMMAND_RESTART:
 237                         Config.snapshotLoad = false;
 238                         Config.snapshotSave = true;
 239                         break;
 240                 case STARTUP_COMMAND_CONTINUE:
 241                         Config.snapshotLoad = true;
 242                         Config.snapshotSave = true;
 243                         break;
 244                 case STARTUP_COMMAND_QUIT:
 245                         Config.snapshotLoad = false;
 246                         Config.snapshotSave = false;
 247                         Config.quitting = true;
 248                         break;
 249                 default:
 250                         Config.snapshotLoad = false;
 251                         Config.snapshotSave = false;
 252                         break;
 253         }
 254
 255         g_object_unref(G_OBJECT(gcc));
 256 }
 257
 258 /** This is called periodically from the main loop.
 259         Iterates the GLib loop to get D-Bus events.
 260  */
 261 void OssoPollEvents()
 262 {
 263         if (!OssoOk()) return;
 264
 265         g_main_context_iteration(mainContext, FALSE);
 266 }
 267
 268 typedef struct ButtonEntry {
 269         const char * gconf_key;
 270         unsigned long mask;
 271         bool is_action;
 272 } ButtonEntry;
 273
 274 /** This arrays contains generic info about each of the mappable buttons the
 275         GUI shows */
 276 static const ButtonEntry buttons[] = {
 277 #define HELP(...)
 278 #define P(x) SNES_##x##_MASK
 279 #define A(x) kAction##x
 280 #define BUTTON(description, slug, actions, d, f) \
 281         { G_STRINGIFY(slug), actions, false },
 282 #define ACTION(description, slug, actions, d, f) \
 283         { G_STRINGIFY(slug), actions, true },
 284 #define LAST \
 285         { 0 }
 286 #include "../gui/buttons.inc"
 287 #undef HELP
 288 #undef P
 289 #undef A
 290 #undef BUTTON
 291 #undef ACTION
 292 #undef LAST
 293 };
 294
 295 static void createActionMappingsOnly()
 296 {
 297         // Map quit to fullscreen, escape and task switch.
 298         Config.action[72] = kActionQuit;
 299         Config.action[9] = kActionQuit;
 300         Config.action[71] = kActionQuit;
 301 }
 302
 303 static void parseGConfKeyMappings(GConfClient* gcc)
 304 {
 305         // Build player 1 keyboard gconf key relative path
 306         gchar key[kGConfPlayerPathBufferLen];
 307         gchar *relKey = key + sprintf(key,
 308                 kGConfPlayerPath kGConfPlayerKeyboardPath "/", 1);
 309
 310         // If the user does not map fullscreen or quit
 311         bool quit_mapped = false;
 312
 313         printf("Hgw: Using gconf key mappings\n");
 314         // Thus ignoring config file key mappings
 315         ZeroMemory(Config.joypad1Mapping, sizeof(Config.joypad1Mapping));
 316         ZeroMemory(Config.action, sizeof(Config.action));
 317
 318         int i, scancode;
 319         for (i = 0; buttons[i].gconf_key; i++) {
 320                 strcpy(relKey, buttons[i].gconf_key);
 321                 scancode = gconf_client_get_int(gcc, key, NULL);
 322
 323                 if (scancode <= 0 || scancode > 255) continue;
 324
 325                 if (buttons[i].is_action) {
 326                         Config.action[scancode] |= buttons[i].mask;
 327                         if (buttons[i].mask & (kActionQuit | kActionToggleFullscreen)) {
 328                                 quit_mapped = true;
 329                         }
 330                 } else {
 331                         Config.joypad1Mapping[scancode] |= buttons[i].mask;
 332                 }
 333         }
 334
 335 #if MAEMO && !CONF_EXIT_BUTTON
 336         // Safeguards
 337         if (!quit_mapped) {
 338                 // Newbie user won't know how to quit game.
 339                 if (!Config.joypad1Mapping[72] && !Config.action[72]) {
 340                         // Fullscreen key is not mapped, map
 341                         Config.action[72] = kActionQuit;
 342                         quit_mapped = true;
 343                 }
 344                 if (!quit_mapped && !Config.joypad1Mapping[9] && !Config.action[9]) {
 345                         // Escape key is not mapped, map
 346                         // But only if we couldn't map quit to fullscreen. Some people
 347                         // actually want Quit not to be mapped.
 348                         Config.action[9] = kActionQuit;
 349                         quit_mapped = true;
 350                 }
 351                 if (!quit_mapped) {
 352                         // Force mapping of fullscreen to Quit if can't map anywhere else.
 353                         Config.joypad1Mapping[72] = 0;
 354                         Config.action[72] = kActionQuit;
 355                 }
 356         }
 357
 358         // If task switch key is not mapped, map it to Quit by default.
 359         if (!Config.action[71] && !Config.joypad1Mapping[71]) {
 360                 Config.action[71] = kActionQuit;
 361         }
 362 #endif
 363 }
 364