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
  64 static SDL_Thread *evt_thread = NULL;
  65
  66 #ifdef DEBUG
  67 bool debug_audio = false;
  68 #endif
  69
  70 bool debug_wps = false;
  71 int wps_verbose_level = 3;
  72
  73 /*
  74  * This thread will read the buttons in an interrupt like fashion, and
  75  * also initializes SDL_INIT_VIDEO and the surfaces
  76  *
  77  * it must be done in the same thread (at least on windows) because events only
  78  * work in the thread which called SDL_Init(SubSystem) with SDL_INIT_VIDEO
  79  *
  80  * This is an SDL thread and relies on preemptive behavoir of the host
  81  **/
  82 static int sdl_event_thread(void * param)
  83 {
  84     SDL_InitSubSystem(SDL_INIT_VIDEO);
  85
  86 #if (CONFIG_PLATFORM & PLATFORM_MAEMO)
  87     SDL_sem *wait_for_maemo_startup;
  88 #endif
  89     SDL_Surface *picture_surface = NULL;
  90     int width, height;
  91     int depth;
  92     Uint32 flags;
  93
  94     /* Try and load the background image. If it fails go without */
  95     if (background) {
  96         picture_surface = SDL_LoadBMP("UI256.bmp");
  97         if (picture_surface == NULL) {
  98             background = false;
  99             DEBUGF("warn: %s\n", SDL_GetError());
 100         }
 101     }
 102
 103     /* Set things up */
 104     if (background)
 105     {
 106         width = UI_WIDTH;
 107         height = UI_HEIGHT;
 108     }
 109     else
 110     {
 111 #ifdef HAVE_REMOTE_LCD
 112         if (showremote)
 113         {
 114             width = SIM_LCD_WIDTH > SIM_REMOTE_WIDTH ? SIM_LCD_WIDTH : SIM_REMOTE_WIDTH;
 115             height = SIM_LCD_HEIGHT + SIM_REMOTE_HEIGHT;
 116         }
 117         else
 118 #endif
 119         {
 120             width = SIM_LCD_WIDTH;
 121             height = SIM_LCD_HEIGHT;
 122         }
 123     }
 124
 125     depth = LCD_DEPTH;
 126     if (depth < 8)
 127         depth = 16;
 128
 129     flags = SDL_HWSURFACE|SDL_DOUBLEBUF;
 130 #if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
 131     /* Fullscreen mode for maemo app */
 132     flags |= SDL_FULLSCREEN;
 133 #endif
 134
 135     SDL_WM_SetCaption(UI_TITLE, NULL);
 136
 137     if ((gui_surface = SDL_SetVideoMode(width * display_zoom, height * display_zoom, depth, flags)) == NULL) {
 138         panicf("%s", SDL_GetError());
 139     }
 140
 141 #if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
 142     /* SDL touch screen fix: Work around a SDL assumption that returns
 143        relative mouse coordinates when you get to the screen edges
 144        using the touchscreen and a disabled mouse cursor.
 145      */
 146     uint8_t hiddenCursorData = 0;
 147     SDL_Cursor *hiddenCursor = SDL_CreateCursor(&hiddenCursorData, &hiddenCursorData, 8, 1, 0, 0);
 148
 149     SDL_ShowCursor(SDL_ENABLE);
 150     SDL_SetCursor(hiddenCursor);
 151 #endif
 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 (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
 184     SDL_FreeCursor(hiddenCursor);
 185 #endif
 186
 187     if(picture_surface)
 188         SDL_FreeSurface(picture_surface);
 189
 190     /* Order here is relevent to prevent deadlocks and use of destroyed
 191        sync primitives by kernel threads */
 192 #ifdef HAVE_SDL_THREADS
 193     sim_thread_shutdown(); /* not needed for native threads */
 194 #endif
 195     return 0;
 196 }
 197
 198 void power_off(void)
 199 {
 200     /* Shut down SDL event loop */
 201     SDL_Event event;
 202     memset(&event, 0, sizeof(SDL_Event));
 203     event.type = SDL_USEREVENT;
 204     SDL_PushEvent(&event);
 205 #ifdef HAVE_SDL_THREADS
 206     /* since sim_thread_shutdown() grabs the mutex we need to let it free,
 207      * otherwise SDL_WaitThread will deadlock */
 208     struct thread_entry* t = sim_thread_unlock();
 209 #endif
 210     /* wait for event thread to finish */
 211     SDL_WaitThread(evt_thread, NULL);
 212
 213 #ifdef HAVE_SDL_THREADS
 214     /* lock again before entering the scheduler */
 215     sim_thread_lock(t);
 216     /* sim_thread_shutdown() will cause sim_do_exit() to be called via longjmp,
 217      * but only if we let the sdl thread scheduler exit the other threads */
 218     while(1) yield();
 219 #else
 220     sim_do_exit();
 221 #endif
 222 }
 223
 224 void sim_do_exit()
 225 {
 226     sim_kernel_shutdown();
 227
 228     SDL_Quit();
 229     exit(EXIT_SUCCESS);
 230 }
 231
 232 uintptr_t *stackbegin;
 233 uintptr_t *stackend;
 234 void system_init(void)
 235 {
 236     SDL_sem *s;
 237     /* fake stack, OS manages size (and growth) */
 238     stackbegin = stackend = (uintptr_t*)&s;
 239
 240 #if (CONFIG_PLATFORM & PLATFORM_MAEMO)
 241     /* Make glib thread safe */
 242     g_thread_init(NULL);
 243     g_type_init();
 244 #endif
 245
 246     if (SDL_Init(SDL_INIT_TIMER))
 247         panicf("%s", SDL_GetError());
 248
 249     s = SDL_CreateSemaphore(0); /* 0-count so it blocks */
 250
 251     evt_thread = SDL_CreateThread(sdl_event_thread, s);
 252
 253     /* wait for sdl_event_thread to run so that it can initialize the surfaces
 254      * and video subsystem needed for SDL events */
 255     SDL_SemWait(s);
 256     /* cleanup */
 257     SDL_DestroySemaphore(s);
 258 }
 259
 260
 261 void system_reboot(void)
 262 {
 263 #ifdef HAVE_SDL_THREADS
 264     sim_thread_exception_wait();
 265 #else
 266     sim_do_exit();
 267 #endif
 268 }
 269
 270 void system_exception_wait(void)
 271 {
 272     system_reboot();
 273 }
 274
 275 void sys_handle_argv(int argc, char *argv[])
 276 {
 277     if (argc >= 1)
 278     {
 279         int x;
 280         for (x = 1; x < argc; x++)
 281         {
 282 #ifdef DEBUG
 283             if (!strcmp("--debugaudio", argv[x]))
 284             {
 285                 debug_audio = true;
 286                 printf("Writing debug audio file.\n");
 287             }
 288             else
 289 #endif
 290                 if (!strcmp("--debugwps", argv[x]))
 291             {
 292                 debug_wps = true;
 293                 printf("WPS debug mode enabled.\n");
 294             }
 295             else if (!strcmp("--nobackground", argv[x]))
 296             {
 297                 background = false;
 298                 printf("Disabling background image.\n");
 299             }
 300 #ifdef HAVE_REMOTE_LCD
 301             else if (!strcmp("--noremote", argv[x]))
 302             {
 303                 showremote = false;
 304                 background = false;
 305                 printf("Disabling remote image.\n");
 306             }
 307 #endif
 308             else if (!strcmp("--old_lcd", argv[x]))
 309             {
 310                 having_new_lcd = false;
 311                 printf("Using old LCD layout.\n");
 312             }
 313             else if (!strcmp("--zoom", argv[x]))
 314             {
 315                 x++;
 316                 if(x < argc)
 317                     display_zoom=atof(argv[x]);
 318                 else
 319                     display_zoom = 2;
 320                 printf("Window zoom is %d\n", display_zoom);
 321             }
 322             else if (!strcmp("--alarm", argv[x]))
 323             {
 324                 sim_alarm_wakeup = true;
 325                 printf("Simulating alarm wakeup.\n");
 326             }
 327             else if (!strcmp("--root", argv[x]))
 328             {
 329                 x++;
 330                 if (x < argc)
 331                 {
 332                     sim_root_dir = argv[x];
 333                     printf("Root directory: %s\n", sim_root_dir);
 334                 }
 335             }
 336             else if (!strcmp("--mapping", argv[x]))
 337             {
 338                     mapping = true;
 339                     printf("Printing click coords with drag radii.\n");
 340             }
 341             else if (!strcmp("--debugbuttons", argv[x]))
 342             {
 343                     debug_buttons = true;
 344                     printf("Printing background button clicks.\n");
 345             }
 346             else
 347             {
 348                 printf("rockboxui\n");
 349                 printf("Arguments:\n");
 350 #ifdef DEBUG
 351                 printf("  --debugaudio \t Write raw PCM data to audiodebug.raw\n");
 352 #endif
 353                 printf("  --debugwps \t Print advanced WPS debug info\n");
 354                 printf("  --nobackground \t Disable the background image\n");
 355 #ifdef HAVE_REMOTE_LCD
 356                 printf("  --noremote \t Disable the remote image (will disable backgrounds)\n");
 357 #endif
 358                 printf("  --old_lcd \t [Player] simulate old playermodel (ROM version<4.51)\n");
 359                 printf("  --zoom [VAL]\t Window zoom (will disable backgrounds)\n");
 360                 printf("  --alarm \t Simulate a wake-up on alarm\n");
 361                 printf("  --root [DIR]\t Set root directory\n");
 362                 printf("  --mapping \t Output coordinates and radius for mapping backgrounds\n");
 363                 exit(0);
 364             }
 365         }
 366     }
 367     if (display_zoom != 1) {
 368         background = false;
 369     }
 370 }