forked from len0rd/rockbox
9ba59477a1
This enables smooth resizing of the window using a fixed aspect ratio, instead of snapping into the correct aspect ratio only when the resize operation has finished, by using an SDL event filter that gets events delivered during the resize operation (whereas SDL_PollEvent blocks until done on macOS). Change-Id: Ie6614e4b6f49a24469c5ee6a69721c9fbd440dae
379 lines
10 KiB
C
379 lines
10 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 <SDL_thread.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#ifdef __unix__
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#include <unistd.h>
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#endif
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#include "system.h"
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#include "kernel.h"
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#include "thread-sdl.h"
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#include "system-sdl.h"
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#include "sim-ui-defines.h"
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#include "window-sdl.h"
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#include "button-sdl.h"
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#include "lcd-bitmap.h"
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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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#if (CONFIG_PLATFORM & PLATFORM_MAEMO)
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#include <glib.h>
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#include <glib-object.h>
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#include "maemo-thread.h"
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#endif
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#define SIMULATOR_DEFAULT_ROOT "simdisk"
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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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const char *audiodev = NULL;
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bool debug_buttons = false;
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bool sim_alarm_wakeup = false;
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const char *sim_root_dir = SIMULATOR_DEFAULT_ROOT;
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static SDL_Thread *evt_thread = NULL;
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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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#ifndef __APPLE__ /* MacOS requires events to be handled on main thread */
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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 that called SDL_InitSubSystem(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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#ifdef __WIN32 /* Fails on Linux and MacOS */
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SDL_SetHint(SDL_HINT_WINDOWS_DPI_SCALING, "1");
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SDL_InitSubSystem(SDL_INIT_VIDEO);
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sdl_window_setup();
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#endif
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#if (CONFIG_PLATFORM & PLATFORM_MAEMO)
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SDL_sem *wait_for_maemo_startup;
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#endif
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#if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
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/* SDL touch screen fix: Work around a SDL assumption that returns
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relative mouse coordinates when you get to the screen edges
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using the touchscreen and a disabled mouse cursor.
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*/
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uint8_t hiddenCursorData = 0;
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SDL_Cursor *hiddenCursor = SDL_CreateCursor(&hiddenCursorData, &hiddenCursorData, 8, 1, 0, 0);
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SDL_ShowCursor(SDL_ENABLE);
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SDL_SetCursor(hiddenCursor);
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#endif
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#if (CONFIG_PLATFORM & PLATFORM_MAEMO)
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/* start maemo thread: Listen to display on/off events and battery monitoring */
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wait_for_maemo_startup = SDL_CreateSemaphore(0); /* 0-count so it blocks */
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SDL_Thread *maemo_thread = SDL_CreateThread(maemo_thread_func, NULL, wait_for_maemo_startup);
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SDL_SemWait(wait_for_maemo_startup);
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SDL_DestroySemaphore(wait_for_maemo_startup);
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#endif
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/* let system_init proceed */
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SDL_SemPost((SDL_sem *)param);
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/* finally enter the button loop */
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gui_message_loop();
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#if (CONFIG_PLATFORM & PLATFORM_MAEMO5)
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pcm_shutdown_gstreamer();
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#endif
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#if (CONFIG_PLATFORM & PLATFORM_MAEMO)
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g_main_loop_quit (maemo_main_loop);
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g_main_loop_unref(maemo_main_loop);
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SDL_WaitThread(maemo_thread, NULL);
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#endif
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#if (CONFIG_PLATFORM & (PLATFORM_MAEMO|PLATFORM_PANDORA))
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SDL_FreeCursor(hiddenCursor);
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#endif
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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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#ifdef HAVE_SDL_THREADS
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sim_thread_shutdown(); /* not needed for native threads */
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#endif
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return 0;
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}
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#endif
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static bool quitting;
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void sdl_sys_quit(void)
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{
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quitting = true;
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sys_poweroff();
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}
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void power_off(void)
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{
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/* Shut down SDL event loop */
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SDL_Event event;
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memset(&event, 0, sizeof(SDL_Event));
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event.type = SDL_USEREVENT;
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SDL_PushEvent(&event);
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#ifdef HAVE_SDL_THREADS
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/* since sim_thread_shutdown() grabs the mutex we need to let it free,
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* otherwise SDL_WaitThread will deadlock */
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struct thread_entry* t = sim_thread_unlock();
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if (!evt_thread) /* no event thread on MacOS */
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sim_thread_shutdown();
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#endif
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/* wait for event thread to finish */
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SDL_WaitThread(evt_thread, NULL);
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#ifdef HAVE_SDL_THREADS
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/* lock again before entering the scheduler */
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sim_thread_lock(t);
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/* sim_thread_shutdown() will cause sim_do_exit() to be called via longjmp,
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* but only if we let the sdl thread scheduler exit the other threads */
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while(1) yield();
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#else
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sim_do_exit();
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#endif
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}
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void sim_do_exit()
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{
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#ifdef SIMULATOR
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extern SDL_Cursor *sdl_focus_cursor;
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extern SDL_Cursor *sdl_arrow_cursor;
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if (sdl_focus_cursor)
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SDL_FreeCursor(sdl_focus_cursor);
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if (sdl_arrow_cursor)
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SDL_FreeCursor(sdl_arrow_cursor);
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#endif
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sim_kernel_shutdown();
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SDL_UnlockMutex(window_mutex);
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SDL_DestroyMutex(window_mutex);
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SDL_Quit();
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exit(EXIT_SUCCESS);
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}
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uintptr_t *stackbegin;
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uintptr_t *stackend;
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void system_init(void)
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{
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SDL_sem *s;
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/* fake stack, OS manages size (and growth) */
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stackbegin = stackend = (uintptr_t*)&s;
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#if (CONFIG_PLATFORM & PLATFORM_MAEMO)
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/* Make glib thread safe */
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g_thread_init(NULL);
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g_type_init();
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#endif
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if (SDL_InitSubSystem(SDL_INIT_TIMER))
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panicf("%s", SDL_GetError());
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#ifdef SIMULATOR
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{
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SDL_version compiled;
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SDL_version linked;
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SDL_VERSION(&compiled);
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SDL_GetVersion(&linked);
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printf("Rockbox compiled with SDL %u.%u.%u but running on SDL %u.%u.%u\n",
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compiled.major, compiled.minor, compiled.patch,
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linked.major, linked.minor, linked.patch);
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}
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#endif
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#ifndef __WIN32 /* Fails on Windows */
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SDL_InitSubSystem(SDL_INIT_VIDEO);
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sdl_window_setup();
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#endif
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#ifndef __APPLE__ /* MacOS requires events to be handled on main thread */
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s = SDL_CreateSemaphore(0); /* 0-count so it blocks */
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evt_thread = SDL_CreateThread(sdl_event_thread, NULL, s);
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SDL_SemWait(s);
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/* cleanup */
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SDL_DestroySemaphore(s);
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#else
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SDL_AddEventWatch(sdl_event_filter, NULL);
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#endif
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}
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void system_reboot(void)
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{
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#ifdef HAVE_SDL_THREADS
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sim_thread_exception_wait();
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#else
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sim_do_exit();
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#endif
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}
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void system_exception_wait(void)
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{
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if (evt_thread)
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{
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while (!quitting)
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SDL_Delay(10);
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}
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system_reboot();
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}
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int hostfs_init(void)
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{
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/* stub */
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return 0;
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}
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#ifdef HAVE_STORAGE_FLUSH
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int hostfs_flush(void)
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{
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#ifdef __unix__
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sync();
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#endif
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return 0;
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}
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#endif /* HAVE_STORAGE_FLUSH */
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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("--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=atof(argv[x]);
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else
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display_zoom = 2;
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printf("Window zoom is %f\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 if (!strcmp("--audiodev", 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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audiodev = argv[x];
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printf("Audio device: '%s'\n", audiodev);
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}
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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(" --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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printf(" --audiodev [NAME] \t Audio device name to use\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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