c4c7069a8a
SDL docs say SDL_PumpEvent (implicitely called by SDL_Poll/WaitEvent) may only be called from the thread that initializes the video subsystem, apparently because Windows requires that. So create an (or bring it back) SDL thread (with preemtive behavior) to read the event queue for buttons and initialize the video subsystem. I'd probably would have done that anyway because it enables an interrupt-like method to read them (no polling). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26113 a1c6a512-1295-4272-9138-f99709370657
293 lines
8.3 KiB
C
293 lines
8.3 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006 by Daniel Everton <dan@iocaine.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <SDL.h>
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#include <stdlib.h>
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#include <string.h>
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#include <setjmp.h>
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#include "system-sdl.h"
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#include "thread-sdl.h"
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#include "sim-ui-defines.h"
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#include "lcd-sdl.h"
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#ifdef HAVE_LCD_BITMAP
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#include "lcd-bitmap.h"
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#elif defined(HAVE_LCD_CHARCELLS)
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#include "lcd-charcells.h"
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#endif
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#ifdef HAVE_REMOTE_LCD
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#include "lcd-remote-bitmap.h"
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#endif
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#include "panic.h"
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#include "debug.h"
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SDL_Surface *gui_surface;
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bool background = true; /* use backgrounds by default */
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#ifdef HAVE_REMOTE_LCD
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bool showremote = true; /* include remote by default */
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#endif
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bool mapping = false;
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bool debug_buttons = false;
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bool lcd_display_redraw = true; /* Used for player simulator */
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char having_new_lcd = true; /* Used for player simulator */
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bool sim_alarm_wakeup = false;
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const char *sim_root_dir = NULL;
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extern int display_zoom;
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#ifdef DEBUG
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bool debug_audio = false;
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#endif
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bool debug_wps = false;
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int wps_verbose_level = 3;
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void sys_poweroff(void)
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{
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/* Order here is relevent to prevent deadlocks and use of destroyed
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sync primitives by kernel threads */
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sim_thread_shutdown();
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sim_kernel_shutdown();
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SDL_Quit();
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}
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/*
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* Button read loop */
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void gui_message_loop(void);
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/*
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* This callback let's the main thread run again after SDL has been initialized
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**/
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static uint32_t cond_signal(uint32_t interval, void *param)
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{
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(void)interval;
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SDL_cond *c = (SDL_cond*)param;
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/* remove timer, CondSignal returns 0 on success */
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return SDL_CondSignal(c);
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}
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/*
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* This thread will read the buttons in an interrupt like fashion, and
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* also initializes SDL_INIT_VIDEO and the surfaces
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*
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* it must be done in the same thread (at least on windows) because events only
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* work in the thread which called SDL_Init(SubSystem) with SDL_INIT_VIDEO
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*
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* This is an SDL thread and relies on preemptive behavoir of the host
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**/
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static int sdl_event_thread(void * param)
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{
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SDL_InitSubSystem(SDL_INIT_VIDEO);
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SDL_Surface *picture_surface;
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int width, height;
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/* Try and load the background image. If it fails go without */
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if (background) {
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picture_surface = SDL_LoadBMP("UI256.bmp");
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if (picture_surface == NULL) {
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background = false;
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DEBUGF("warn: %s\n", SDL_GetError());
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}
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}
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/* Set things up */
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if (background)
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{
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width = UI_WIDTH;
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height = UI_HEIGHT;
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}
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else
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{
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#ifdef HAVE_REMOTE_LCD
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if (showremote)
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{
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width = SIM_LCD_WIDTH > SIM_REMOTE_WIDTH ? SIM_LCD_WIDTH : SIM_REMOTE_WIDTH;
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height = SIM_LCD_HEIGHT + SIM_REMOTE_HEIGHT;
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}
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else
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#endif
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{
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width = SIM_LCD_WIDTH;
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height = SIM_LCD_HEIGHT;
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}
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}
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if ((gui_surface = SDL_SetVideoMode(width * display_zoom, height * display_zoom, 24, SDL_HWSURFACE|SDL_DOUBLEBUF)) == NULL) {
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panicf("%s", SDL_GetError());
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}
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SDL_WM_SetCaption(UI_TITLE, NULL);
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sim_lcd_init();
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#ifdef HAVE_REMOTE_LCD
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if (showremote)
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sim_lcd_remote_init();
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#endif
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if (background && picture_surface != NULL)
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SDL_BlitSurface(picture_surface, NULL, gui_surface, NULL);
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/* calling SDL_CondSignal() right away here doesn't work reliably so
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* post-pone it a bit */
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SDL_AddTimer(100, cond_signal, param);
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/*
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* finally enter the button loop */
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while(1)
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gui_message_loop();
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return 0;
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}
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void system_init(void)
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{
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SDL_cond *c;
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SDL_mutex *m;
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if (SDL_Init(SDL_INIT_TIMER))
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panicf("%s", SDL_GetError());
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atexit(SDL_Quit);
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c = SDL_CreateCond();
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m = SDL_CreateMutex();
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SDL_CreateThread(sdl_event_thread, c);
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/* Lock mutex and wait for sdl_event_thread to run so that it can
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* initialize the surfaces and video subsystem needed for SDL events */
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SDL_LockMutex(m);
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SDL_CondWait(c, m);
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SDL_UnlockMutex(m);
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/* cleanup */
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SDL_DestroyCond(c);
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SDL_DestroyMutex(m);
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}
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void system_exception_wait(void)
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{
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sim_thread_exception_wait();
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}
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void system_reboot(void)
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{
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sim_thread_exception_wait();
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}
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void sys_handle_argv(int argc, char *argv[])
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{
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if (argc >= 1)
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{
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int x;
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for (x = 1; x < argc; x++)
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{
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#ifdef DEBUG
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if (!strcmp("--debugaudio", argv[x]))
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{
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debug_audio = true;
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printf("Writing debug audio file.\n");
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}
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else
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#endif
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if (!strcmp("--debugwps", argv[x]))
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{
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debug_wps = true;
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printf("WPS debug mode enabled.\n");
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}
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else if (!strcmp("--nobackground", argv[x]))
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{
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background = false;
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printf("Disabling background image.\n");
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}
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#ifdef HAVE_REMOTE_LCD
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else if (!strcmp("--noremote", argv[x]))
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{
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showremote = false;
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background = false;
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printf("Disabling remote image.\n");
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}
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#endif
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else if (!strcmp("--old_lcd", argv[x]))
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{
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having_new_lcd = false;
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printf("Using old LCD layout.\n");
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}
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else if (!strcmp("--zoom", argv[x]))
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{
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x++;
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if(x < argc)
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display_zoom=atoi(argv[x]);
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else
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display_zoom = 2;
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printf("Window zoom is %d\n", display_zoom);
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}
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else if (!strcmp("--alarm", argv[x]))
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{
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sim_alarm_wakeup = true;
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printf("Simulating alarm wakeup.\n");
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}
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else if (!strcmp("--root", argv[x]))
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{
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x++;
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if (x < argc)
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{
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sim_root_dir = argv[x];
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printf("Root directory: %s\n", sim_root_dir);
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}
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}
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else if (!strcmp("--mapping", argv[x]))
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{
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mapping = true;
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printf("Printing click coords with drag radii.\n");
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}
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else if (!strcmp("--debugbuttons", argv[x]))
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{
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debug_buttons = true;
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printf("Printing background button clicks.\n");
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}
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else
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{
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printf("rockboxui\n");
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printf("Arguments:\n");
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#ifdef DEBUG
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printf(" --debugaudio \t Write raw PCM data to audiodebug.raw\n");
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#endif
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printf(" --debugwps \t Print advanced WPS debug info\n");
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printf(" --nobackground \t Disable the background image\n");
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#ifdef HAVE_REMOTE_LCD
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printf(" --noremote \t Disable the remote image (will disable backgrounds)\n");
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#endif
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printf(" --old_lcd \t [Player] simulate old playermodel (ROM version<4.51)\n");
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printf(" --zoom [VAL]\t Window zoom (will disable backgrounds)\n");
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printf(" --alarm \t Simulate a wake-up on alarm\n");
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printf(" --root [DIR]\t Set root directory\n");
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printf(" --mapping \t Output coordinates and radius for mapping backgrounds\n");
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exit(0);
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}
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}
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}
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if (display_zoom > 1) {
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background = false;
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}
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}
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