firmware/target/hosted/sdl/system-sdl.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 by Daniel Everton <dan@iocaine.org>
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include <SDL.h>
  23 #include <SDL_thread.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <inttypes.h>
  27 #include "system.h"
  28 #include "thread-sdl.h"
  29 #include "system-sdl.h"
  30 #include "sim-ui-defines.h"
  31 #include "lcd-sdl.h"
  32 #ifdef HAVE_LCD_BITMAP
  33 #include "lcd-bitmap.h"
  34 #elif defined(HAVE_LCD_CHARCELLS)
  35 #include "lcd-charcells.h"
  36 #endif
  37 #ifdef HAVE_REMOTE_LCD
  38 #include "lcd-remote-bitmap.h"
  39 #endif
  40 #include "panic.h"
  41 #include "debug.h"
  42
  43 #if (CONFIG_PLATFORM & PLATFORM_MAEMO)
  44 #include <glib.h>
  45 #include <glib-object.h>
  46 #include "maemo-thread.h"
  47
  48 #endif
  49
  50 SDL_Surface    *gui_surface;
  51
  52 bool            background = true;          /* use backgrounds by default */
  53 #ifdef HAVE_REMOTE_LCD
  54 bool            showremote = true;          /* include remote by default */
  55 #endif
  56 bool            mapping = false;
  57 bool            debug_buttons = false;
  58
  59 bool            lcd_display_redraw = true;  /* Used for player simulator */
  60 char            having_new_lcd = true;      /* Used for player simulator */
  61 bool            sim_alarm_wakeup = false;
  62 const char     *sim_root_dir = NULL;
  63 extern int      display_zoom;
  64
  65 static SDL_Thread *evt_thread = NULL;
  66
  67 #ifdef DEBUG
  68 bool debug_audio = false;
  69 #endif
  70
  71 bool debug_wps = false;
  72 int wps_verbose_level = 3;
  73
  74 void sys_poweroff(void)
  75 {
  76     /* Post SYS_POWEROFF event. Will post SDL_USEREVENT in shutdown_hw() if successful. */
  77     queue_broadcast(SYS_POWEROFF, 0);
  78 }
  79
  80 /*
  81  * This thread will read the buttons in an interrupt like fashion, and
  82  * also initializes SDL_INIT_VIDEO and the surfaces
  83  *
  84  * it must be done in the same thread (at least on windows) because events only
  85  * work in the thread which called SDL_Init(SubSystem) with SDL_INIT_VIDEO
  86  *
  87  * This is an SDL thread and relies on preemptive behavoir of the host
  88  **/
  89 static int sdl_event_thread(void * param)
  90 {
  91     SDL_InitSubSystem(SDL_INIT_VIDEO);
  92
  93 #if (CONFIG_PLATFORM & PLATFORM_MAEMO)
  94     SDL_sem *wait_for_maemo_startup;
  95 #endif
  96     SDL_Surface *picture_surface = NULL;
  97     int width, height;
  98     int depth;
  99     Uint32 flags;
 100
 101     /* Try and load the background image. If it fails go without */
 102     if (background) {
 103         picture_surface = SDL_LoadBMP("UI256.bmp");
 104         if (picture_surface == NULL) {
 105             background = false;
 106             DEBUGF("warn: %s\n", SDL_GetError());
 107         }
 108     }
 109
 110     /* Set things up */
 111     if (background)
 112     {
 113         width = UI_WIDTH;
 114         height = UI_HEIGHT;
 115     }
 116     else
 117     {
 118 #ifdef HAVE_REMOTE_LCD
 119         if (showremote)
 120         {
 121             width = SIM_LCD_WIDTH > SIM_REMOTE_WIDTH ? SIM_LCD_WIDTH : SIM_REMOTE_WIDTH;
 122             height = SIM_LCD_HEIGHT + SIM_REMOTE_HEIGHT;
 123         }
 124         else
 125 #endif
 126         {
 127             width = SIM_LCD_WIDTH;
 128             height = SIM_LCD_HEIGHT;
 129         }
 130     }
 131
 132     depth = LCD_DEPTH;
 133     if (depth < 8)
 134         depth = 16;
 135
 136     flags = SDL_HWSURFACE|SDL_DOUBLEBUF;
 137 #if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
 138     /* Fullscreen mode for maemo app */
 139     flags |= SDL_FULLSCREEN;
 140 #endif
 141
 142     if ((gui_surface = SDL_SetVideoMode(width * display_zoom, height * display_zoom, depth, flags)) == NULL) {
 143         panicf("%s", SDL_GetError());
 144     }
 145
 146 #if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
 147     /* Hide mouse cursor on real touchscreen device */
 148     SDL_ShowCursor(SDL_DISABLE);
 149 #endif
 150
 151     SDL_WM_SetCaption(UI_TITLE, NULL);
 152
 153     if (background && picture_surface != NULL)
 154         SDL_BlitSurface(picture_surface, NULL, gui_surface, NULL);
 155
 156     /* let system_init proceed */
 157     SDL_SemPost((SDL_sem *)param);
 158
 159 #if (CONFIG_PLATFORM & PLATFORM_MAEMO)
 160     /* Start maemo thread: Listen to display on/off events and battery monitoring */
 161     wait_for_maemo_startup = SDL_CreateSemaphore(0); /* 0-count so it blocks */
 162     SDL_Thread *maemo_thread = SDL_CreateThread(maemo_thread_func, wait_for_maemo_startup);
 163 #endif
 164
 165     /*
 166      * finally enter the button loop */
 167     gui_message_loop();
 168
 169 #if (CONFIG_PLATFORM & PLATFORM_MAEMO)
 170     /* Ensure maemo thread is up and running */
 171     SDL_SemWait(wait_for_maemo_startup);
 172     SDL_DestroySemaphore(wait_for_maemo_startup);
 173
 174 #if (CONFIG_PLATFORM & PLATFORM_MAEMO5)
 175     pcm_shutdown_gstreamer();
 176 #endif
 177
 178     g_main_loop_quit (maemo_main_loop);
 179     g_main_loop_unref(maemo_main_loop);
 180     SDL_WaitThread(maemo_thread, NULL);
 181 #endif
 182
 183     if(picture_surface)
 184         SDL_FreeSurface(picture_surface);
 185
 186     /* Order here is relevent to prevent deadlocks and use of destroyed
 187        sync primitives by kernel threads */
 188 #ifdef HAVE_SDL_THREADS
 189     sim_thread_shutdown(); /* not needed for native threads */
 190 #endif
 191     return 0;
 192 }
 193
 194 void shutdown_hw(void)
 195 {
 196     /* Shut down SDL event loop */
 197     SDL_Event event;
 198     memset(&event, 0, sizeof(SDL_Event));
 199     event.type = SDL_USEREVENT;
 200     SDL_PushEvent(&event);
 201 #ifdef HAVE_SDL_THREADS
 202     /* since sim_thread_shutdown() grabs the mutex we need to let it free,
 203      * otherwise SDL_WaitThread will deadlock */
 204     struct thread_entry* t = sim_thread_unlock();
 205 #endif
 206     /* wait for event thread to finish */
 207     SDL_WaitThread(evt_thread, NULL);
 208
 209 #ifdef HAVE_SDL_THREADS
 210     /* lock again before entering the scheduler */
 211     sim_thread_lock(t);
 212     /* sim_thread_shutdown() will cause sim_do_exit() to be called via longjmp,
 213      * but only if we let the sdl thread scheduler exit the other threads */
 214     while(1) yield();
 215 #else
 216     sim_do_exit();
 217 #endif
 218 }
 219
 220 void sim_do_exit()
 221 {
 222     sim_kernel_shutdown();
 223
 224     SDL_Quit();
 225     exit(EXIT_SUCCESS);
 226 }
 227
 228 uintptr_t *stackbegin;
 229 uintptr_t *stackend;
 230 void system_init(void)
 231 {
 232     SDL_sem *s;
 233     /* fake stack, OS manages size (and growth) */
 234     stackbegin = stackend = (uintptr_t*)&s;
 235
 236 #if (CONFIG_PLATFORM & PLATFORM_MAEMO)
 237     /* Make glib thread safe */
 238     g_thread_init(NULL);
 239     g_type_init();
 240 #endif
 241
 242     if (SDL_Init(SDL_INIT_TIMER))
 243         panicf("%s", SDL_GetError());
 244
 245     s = SDL_CreateSemaphore(0); /* 0-count so it blocks */
 246
 247     evt_thread = SDL_CreateThread(sdl_event_thread, s);
 248
 249     /* wait for sdl_event_thread to run so that it can initialize the surfaces
 250      * and video subsystem needed for SDL events */
 251     SDL_SemWait(s);
 252     /* cleanup */
 253     SDL_DestroySemaphore(s);
 254 }
 255
 256
 257 void system_reboot(void)
 258 {
 259 #ifdef HAVE_SDL_THREADS
 260     sim_thread_exception_wait();
 261 #else
 262     sim_do_exit();
 263 #endif
 264 }
 265
 266 void system_exception_wait(void)
 267 {
 268     system_reboot();
 269 }
 270
 271 void sys_handle_argv(int argc, char *argv[])
 272 {
 273     if (argc >= 1)
 274     {
 275         int x;
 276         for (x = 1; x < argc; x++)
 277         {
 278 #ifdef DEBUG
 279             if (!strcmp("--debugaudio", argv[x]))
 280             {
 281                 debug_audio = true;
 282                 printf("Writing debug audio file.\n");
 283             }
 284             else
 285 #endif
 286                 if (!strcmp("--debugwps", argv[x]))
 287             {
 288                 debug_wps = true;
 289                 printf("WPS debug mode enabled.\n");
 290             }
 291             else if (!strcmp("--nobackground", argv[x]))
 292             {
 293                 background = false;
 294                 printf("Disabling background image.\n");
 295             }
 296 #ifdef HAVE_REMOTE_LCD
 297             else if (!strcmp("--noremote", argv[x]))
 298             {
 299                 showremote = false;
 300                 background = false;
 301                 printf("Disabling remote image.\n");
 302             }
 303 #endif
 304             else if (!strcmp("--old_lcd", argv[x]))
 305             {
 306                 having_new_lcd = false;
 307                 printf("Using old LCD layout.\n");
 308             }
 309             else if (!strcmp("--zoom", argv[x]))
 310             {
 311                 x++;
 312                 if(x < argc)
 313                     display_zoom=atoi(argv[x]);
 314                 else
 315                     display_zoom = 2;
 316                 printf("Window zoom is %d\n", display_zoom);
 317             }
 318             else if (!strcmp("--alarm", argv[x]))
 319             {
 320                 sim_alarm_wakeup = true;
 321                 printf("Simulating alarm wakeup.\n");
 322             }
 323             else if (!strcmp("--root", argv[x]))
 324             {
 325                 x++;
 326                 if (x < argc)
 327                 {
 328                     sim_root_dir = argv[x];
 329                     printf("Root directory: %s\n", sim_root_dir);
 330                 }
 331             }
 332             else if (!strcmp("--mapping", argv[x]))
 333             {
 334                     mapping = true;
 335                     printf("Printing click coords with drag radii.\n");
 336             }
 337             else if (!strcmp("--debugbuttons", argv[x]))
 338             {
 339                     debug_buttons = true;
 340                     printf("Printing background button clicks.\n");
 341             }
 342             else
 343             {
 344                 printf("rockboxui\n");
 345                 printf("Arguments:\n");
 346 #ifdef DEBUG
 347                 printf("  --debugaudio \t Write raw PCM data to audiodebug.raw\n");
 348 #endif
 349                 printf("  --debugwps \t Print advanced WPS debug info\n");
 350                 printf("  --nobackground \t Disable the background image\n");
 351 #ifdef HAVE_REMOTE_LCD
 352                 printf("  --noremote \t Disable the remote image (will disable backgrounds)\n");
 353 #endif
 354                 printf("  --old_lcd \t [Player] simulate old playermodel (ROM version<4.51)\n");
 355                 printf("  --zoom [VAL]\t Window zoom (will disable backgrounds)\n");
 356                 printf("  --alarm \t Simulate a wake-up on alarm\n");
 357                 printf("  --root [DIR]\t Set root directory\n");
 358                 printf("  --mapping \t Output coordinates and radius for mapping backgrounds\n");
 359                 exit(0);
 360             }
 361         }
 362     }
 363     if (display_zoom > 1) {
 364         background = false;
 365     }
 366 }