[qemu.git] / sdl.c

/*
 * QEMU SDL display driver
 * 
 * Copyright (c) 2003 Fabrice Bellard
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "vl.h"

#include <SDL.h>

#ifndef _WIN32
#include <signal.h>
#endif

static SDL_Surface *screen;
static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
static int last_vm_running;
static int gui_saved_grab;
static int gui_fullscreen;
static int gui_key_modifier_pressed;
static int gui_keysym;

static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
{
    //    printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
    SDL_UpdateRect(screen, x, y, w, h);
}

static void sdl_resize(DisplayState *ds, int w, int h)
{
    int flags;

    //    printf("resizing to %d %d\n", w, h);

    flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL;
    flags |= SDL_RESIZABLE;
    if (gui_fullscreen)
        flags |= SDL_FULLSCREEN;
    screen = SDL_SetVideoMode(w, h, 0, flags);
    if (!screen) {
        fprintf(stderr, "Could not open SDL display\n");
        exit(1);
    }
    ds->data = screen->pixels;
    ds->linesize = screen->pitch;
    ds->depth = screen->format->BitsPerPixel;
}

static const uint8_t x_keycode_to_pc_keycode[61] = {
   0xc7,      /*  97  Home   */
   0xc8,      /*  98  Up     */
   0xc9,      /*  99  PgUp   */
   0xcb,      /* 100  Left   */
   0x4c,        /* 101  KP-5   */
   0xcd,      /* 102  Right  */
   0xcf,      /* 103  End    */
   0xd0,      /* 104  Down   */
   0xd1,      /* 105  PgDn   */
   0xd2,      /* 106  Ins    */
   0xd3,      /* 107  Del    */
   0x9c,      /* 108  Enter  */
   0x9d,      /* 109  Ctrl-R */
   0x0,       /* 110  Pause  */
   0xb7,      /* 111  Print  */
   0xb5,      /* 112  Divide */
   0xb8,      /* 113  Alt-R  */
   0xc6,      /* 114  Break  */   
   0x0,         /* 115 */
   0x0,         /* 116 */
   0x0,         /* 117 */
   0x0,         /* 118 */
   0x0,         /* 119 */
   0x70,         /* 120 Hiragana_Katakana */
   0x0,         /* 121 */
   0x0,         /* 122 */
   0x73,         /* 123 backslash */
   0x0,         /* 124 */
   0x0,         /* 125 */
   0x0,         /* 126 */
   0x0,         /* 127 */
   0x0,         /* 128 */
   0x79,         /* 129 Henkan */
   0x0,         /* 130 */
   0x7b,         /* 131 Muhenkan */
   0x0,         /* 132 */
   0x7d,         /* 133 Yen */
   0x0,         /* 134 */
   0x0,         /* 135 */
   0x47,         /* 136 KP_7 */
   0x48,         /* 137 KP_8 */
   0x49,         /* 138 KP_9 */
   0x4b,         /* 139 KP_4 */
   0x4c,         /* 140 KP_5 */
   0x4d,         /* 141 KP_6 */
   0x4f,         /* 142 KP_1 */
   0x50,         /* 143 KP_2 */
   0x51,         /* 144 KP_3 */
   0x52,         /* 145 KP_0 */
   0x53,         /* 146 KP_. */
   0x47,         /* 147 KP_HOME */
   0x48,         /* 148 KP_UP */
   0x49,         /* 149 KP_PgUp */
   0x4b,         /* 150 KP_Left */
   0x4c,         /* 151 KP_ */
   0x4d,         /* 152 KP_Right */
   0x4f,         /* 153 KP_End */
   0x50,         /* 154 KP_Down */
   0x51,         /* 155 KP_PgDn */
   0x52,         /* 156 KP_Ins */
   0x53,         /* 157 KP_Del */
};

static void sdl_process_key(SDL_KeyboardEvent *ev)
{
    int keycode, v, i;
    static uint8_t modifiers_state[256];

    if (ev->keysym.sym == SDLK_PAUSE) {
        /* specific case */
        v = 0;
        if (ev->type == SDL_KEYUP)
            v |= 0x80;
        kbd_put_keycode(0xe1);
        kbd_put_keycode(0x1d | v);
        kbd_put_keycode(0x45 | v);
        return;
    }

    /* XXX: not portable, but avoids complicated mappings */
    keycode = ev->keysym.scancode;

    /* XXX: windows version may not work: 0xe0/0xe1 should be trapped
       ? */
#ifndef _WIN32
    if (keycode < 9) {
        keycode = 0;
    } else if (keycode < 97) {
        keycode -= 8; /* just an offset */
    } else if (keycode < 158) {
        /* use conversion table */
        keycode = x_keycode_to_pc_keycode[keycode - 97];
    } else {
        keycode = 0;
    }
#endif

    switch(keycode) {
    case 0x00:
        /* sent when leaving window: reset the modifiers state */
        for(i = 0; i < 256; i++) {
            if (modifiers_state[i]) {
                if (i & 0x80)
                    kbd_put_keycode(0xe0);
                kbd_put_keycode(i | 0x80);
            }
        }
        return;
    case 0x2a:                          /* Left Shift */
    case 0x36:                          /* Right Shift */
    case 0x1d:                          /* Left CTRL */
    case 0x9d:                          /* Right CTRL */
    case 0x38:                          /* Left ALT */
    case 0xb8:                         /* Right ALT */
        if (ev->type == SDL_KEYUP)
            modifiers_state[keycode] = 0;
        else
            modifiers_state[keycode] = 1;
        break;
    case 0x45: /* num lock */
    case 0x3a: /* caps lock */
        /* SDL does not send the key up event, so we generate it */
        kbd_put_keycode(keycode);
        kbd_put_keycode(keycode | 0x80);
        return;
    }

    /* now send the key code */
    if (keycode & 0x80)
        kbd_put_keycode(0xe0);
    if (ev->type == SDL_KEYUP)
        kbd_put_keycode(keycode | 0x80);
    else
        kbd_put_keycode(keycode & 0x7f);
}

static void sdl_update_caption(void)
{
    char buf[1024];
    strcpy(buf, "QEMU");
    if (!vm_running) {
        strcat(buf, " [Stopped]");
    }
    if (gui_grab) {
        strcat(buf, " - Press Ctrl-Shift to exit grab");
    }
    SDL_WM_SetCaption(buf, "QEMU");
}

static void sdl_grab_start(void)
{
    SDL_ShowCursor(0);
    SDL_WM_GrabInput(SDL_GRAB_ON);
    /* dummy read to avoid moving the mouse */
    SDL_GetRelativeMouseState(NULL, NULL);
    gui_grab = 1;
    sdl_update_caption();
}

static void sdl_grab_end(void)
{
    SDL_WM_GrabInput(SDL_GRAB_OFF);
    SDL_ShowCursor(1);
    gui_grab = 0;
    sdl_update_caption();
}

static void sdl_send_mouse_event(void)
{
    int dx, dy, dz, state, buttons;
    state = SDL_GetRelativeMouseState(&dx, &dy);
    buttons = 0;
    if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
        buttons |= MOUSE_EVENT_LBUTTON;
    if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
        buttons |= MOUSE_EVENT_RBUTTON;
    if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
        buttons |= MOUSE_EVENT_MBUTTON;
    /* XXX: test wheel */
    dz = 0;
#ifdef SDL_BUTTON_WHEELUP
    if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
        dz--;
    if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
        dz++;
#endif
    kbd_mouse_event(dx, dy, dz, buttons);
}

static void toggle_full_screen(DisplayState *ds)
{
    gui_fullscreen = !gui_fullscreen;
    sdl_resize(ds, screen->w, screen->h);
    if (gui_fullscreen) {
        gui_saved_grab = gui_grab;
        sdl_grab_start();
    } else {
        if (!gui_saved_grab)
            sdl_grab_end();
    }
    vga_update_display();
    sdl_update(ds, 0, 0, screen->w, screen->h);
}

static void sdl_refresh(DisplayState *ds)
{
    SDL_Event ev1, *ev = &ev1;
    int mod_state;
                     
    if (last_vm_running != vm_running) {
        last_vm_running = vm_running;
        sdl_update_caption();
    }

    vga_update_display();
    while (SDL_PollEvent(ev)) {
        switch (ev->type) {
        case SDL_VIDEOEXPOSE:
            sdl_update(ds, 0, 0, screen->w, screen->h);
            break;
        case SDL_KEYDOWN:
        case SDL_KEYUP:
            if (ev->type == SDL_KEYDOWN) {
                mod_state = (SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL)) ==
                    (KMOD_LSHIFT | KMOD_LCTRL);
                gui_key_modifier_pressed = mod_state;
                if (gui_key_modifier_pressed && 
                    ev->key.keysym.sym == SDLK_f) {
                    gui_keysym = ev->key.keysym.sym;
                }
            } else if (ev->type == SDL_KEYUP) {
                mod_state = (SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL));
                if (!mod_state) {
                    if (gui_key_modifier_pressed) {
                        switch(gui_keysym) {
                        case SDLK_f:
                            toggle_full_screen(ds);
                            break;
                        case 0:
                            /* exit/enter grab if pressing Ctrl-Shift */
                            if (!gui_grab)
                                sdl_grab_start();
                            else
                                sdl_grab_end();
                            break;
                        }
                        gui_key_modifier_pressed = 0;
                        gui_keysym = 0;
                    }
                }
            }
            sdl_process_key(&ev->key);
            break;
        case SDL_QUIT:
            reset_requested = 1;
            break;
        case SDL_MOUSEMOTION:
            if (gui_grab) {
                sdl_send_mouse_event();
            }
            break;
        case SDL_MOUSEBUTTONDOWN:
        case SDL_MOUSEBUTTONUP:
            {
                SDL_MouseButtonEvent *bev = &ev->button;
                if (!gui_grab) {
                    if (ev->type == SDL_MOUSEBUTTONDOWN &&
                        (bev->state & SDL_BUTTON_LMASK)) {
                        /* start grabbing all events */
                        sdl_grab_start();
                    }
                } else {
                    sdl_send_mouse_event();
                }
            }
            break;
        case SDL_ACTIVEEVENT:
            if (gui_grab && (ev->active.gain & SDL_ACTIVEEVENTMASK) == 0) {
                sdl_grab_end();
            }
            break;
        default:
            break;
        }
    }
}

static void sdl_cleanup(void) 
{
    SDL_Quit();
}

void sdl_display_init(DisplayState *ds)
{
    int flags;

    flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
    if (SDL_Init (flags)) {
        fprintf(stderr, "Could not initialize SDL - exiting\n");
        exit(1);
    }

#ifndef _WIN32
    /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
    signal(SIGINT, SIG_DFL);
    signal(SIGQUIT, SIG_DFL);
#endif

    ds->dpy_update = sdl_update;
    ds->dpy_resize = sdl_resize;
    ds->dpy_refresh = sdl_refresh;

    sdl_resize(ds, 640, 400);
    sdl_update_caption();
    SDL_EnableKeyRepeat(250, 50);
    gui_grab = 0;

    atexit(sdl_cleanup);
}
Commit	Line	Data
0f0b7264 FB	1	/*
	2	* QEMU SDL display driver
	3	*
	4	* Copyright (c) 2003 Fabrice Bellard
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
67b915a5	24	#include "vl.h"
0f0b7264 FB	25
	26	#include <SDL.h>
	27
67b915a5 FB	28	#ifndef _WIN32
	29	#include <signal.h>
	30	#endif
0f0b7264 FB	31
	32	static SDL_Surface *screen;
	33	static int gui_grab; /* if true, all keyboard/mouse events are grabbed */
8a7ddc38	34	static int last_vm_running;
8e9c4afe FB	35	static int gui_saved_grab;
	36	static int gui_fullscreen;
	37	static int gui_key_modifier_pressed;
	38	static int gui_keysym;
0f0b7264 FB	39
	40	static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
	41	{
898712a8	42	// printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
0f0b7264 FB	43	SDL_UpdateRect(screen, x, y, w, h);
	44	}
	45
	46	static void sdl_resize(DisplayState *ds, int w, int h)
	47	{
	48	int flags;
	49
	50	// printf("resizing to %d %d\n", w, h);
	51
	52	flags = SDL_HWSURFACE\|SDL_ASYNCBLIT\|SDL_HWACCEL;
	53	flags \|= SDL_RESIZABLE;
8e9c4afe FB	54	if (gui_fullscreen)
8e9c4afe FB	55	flags \|= SDL_FULLSCREEN;
0f0b7264 FB	56	screen = SDL_SetVideoMode(w, h, 0, flags);
	57	if (!screen) {
	58	fprintf(stderr, "Could not open SDL display\n");
	59	exit(1);
	60	}
	61	ds->data = screen->pixels;
	62	ds->linesize = screen->pitch;
	63	ds->depth = screen->format->BitsPerPixel;
	64	}
	65
de2200d3 FB	66	static const uint8_t x_keycode_to_pc_keycode[61] = {
	67	0xc7, /* 97 Home */
	68	0xc8, /* 98 Up */
	69	0xc9, /* 99 PgUp */
	70	0xcb, /* 100 Left */
0f0b7264	71	0x4c, /* 101 KP-5 */
de2200d3 FB	72	0xcd, /* 102 Right */
	73	0xcf, /* 103 End */
	74	0xd0, /* 104 Down */
	75	0xd1, /* 105 PgDn */
	76	0xd2, /* 106 Ins */
	77	0xd3, /* 107 Del */
	78	0x9c, /* 108 Enter */
	79	0x9d, /* 109 Ctrl-R */
22a56b8a	80	0x0, /* 110 Pause */
de2200d3 FB	81	0xb7, /* 111 Print */
	82	0xb5, /* 112 Divide */
	83	0xb8, /* 113 Alt-R */
	84	0xc6, /* 114 Break */
0f0b7264 FB	85	0x0, /* 115 */
	86	0x0, /* 116 */
	87	0x0, /* 117 */
	88	0x0, /* 118 */
	89	0x0, /* 119 */
b71e95fc	90	0x70, /* 120 Hiragana_Katakana */
0f0b7264 FB	91	0x0, /* 121 */
0f0b7264 FB	92	0x0, /* 122 */
b71e95fc	93	0x73, /* 123 backslash */
0f0b7264 FB	94	0x0, /* 124 */
	95	0x0, /* 125 */
	96	0x0, /* 126 */
	97	0x0, /* 127 */
	98	0x0, /* 128 */
b71e95fc	99	0x79, /* 129 Henkan */
0f0b7264	100	0x0, /* 130 */
b71e95fc	101	0x7b, /* 131 Muhenkan */
0f0b7264	102	0x0, /* 132 */
b71e95fc	103	0x7d, /* 133 Yen */
0f0b7264 FB	104	0x0, /* 134 */
	105	0x0, /* 135 */
	106	0x47, /* 136 KP_7 */
	107	0x48, /* 137 KP_8 */
	108	0x49, /* 138 KP_9 */
	109	0x4b, /* 139 KP_4 */
	110	0x4c, /* 140 KP_5 */
	111	0x4d, /* 141 KP_6 */
	112	0x4f, /* 142 KP_1 */
	113	0x50, /* 143 KP_2 */
	114	0x51, /* 144 KP_3 */
	115	0x52, /* 145 KP_0 */
	116	0x53, /* 146 KP_. */
	117	0x47, /* 147 KP_HOME */
	118	0x48, /* 148 KP_UP */
	119	0x49, /* 149 KP_PgUp */
	120	0x4b, /* 150 KP_Left */
	121	0x4c, /* 151 KP_ */
	122	0x4d, /* 152 KP_Right */
	123	0x4f, /* 153 KP_End */
	124	0x50, /* 154 KP_Down */
	125	0x51, /* 155 KP_PgDn */
	126	0x52, /* 156 KP_Ins */
	127	0x53, /* 157 KP_Del */
	128	};
	129
	130	static void sdl_process_key(SDL_KeyboardEvent *ev)
	131	{
de2200d3 FB	132	int keycode, v, i;
	133	static uint8_t modifiers_state[256];
	134
	135	if (ev->keysym.sym == SDLK_PAUSE) {
	136	/* specific case */
	137	v = 0;
	138	if (ev->type == SDL_KEYUP)
	139	v \|= 0x80;
	140	kbd_put_keycode(0xe1);
	141	kbd_put_keycode(0x1d \| v);
	142	kbd_put_keycode(0x45 \| v);
	143	return;
	144	}
	145
0f0b7264 FB	146	/* XXX: not portable, but avoids complicated mappings */
0f0b7264 FB	147	keycode = ev->keysym.scancode;
b71e95fc	148
de2200d3 FB	149	/* XXX: windows version may not work: 0xe0/0xe1 should be trapped
de2200d3 FB	150	? */
b71e95fc	151	#ifndef _WIN32
0f0b7264 FB	152	if (keycode < 9) {
	153	keycode = 0;
	154	} else if (keycode < 97) {
	155	keycode -= 8; /* just an offset */
b71e95fc	156	} else if (keycode < 158) {
0f0b7264 FB	157	/* use conversion table */
	158	keycode = x_keycode_to_pc_keycode[keycode - 97];
	159	} else {
	160	keycode = 0;
	161	}
b71e95fc	162	#endif
de2200d3 FB	163
	164	switch(keycode) {
	165	case 0x00:
	166	/* sent when leaving window: reset the modifiers state */
	167	for(i = 0; i < 256; i++) {
	168	if (modifiers_state[i]) {
	169	if (i & 0x80)
	170	kbd_put_keycode(0xe0);
	171	kbd_put_keycode(i \| 0x80);
	172	}
	173	}
	174	return;
	175	case 0x2a: /* Left Shift */
	176	case 0x36: /* Right Shift */
	177	case 0x1d: /* Left CTRL */
	178	case 0x9d: /* Right CTRL */
	179	case 0x38: /* Left ALT */
	180	case 0xb8: /* Right ALT */
0f0b7264	181	if (ev->type == SDL_KEYUP)
de2200d3 FB	182	modifiers_state[keycode] = 0;
	183	else
	184	modifiers_state[keycode] = 1;
	185	break;
	186	case 0x45: /* num lock */
	187	case 0x3a: /* caps lock */
	188	/* SDL does not send the key up event, so we generate it */
	189	kbd_put_keycode(keycode);
	190	kbd_put_keycode(keycode \| 0x80);
	191	return;
0f0b7264	192	}
de2200d3 FB	193
	194	/* now send the key code */
	195	if (keycode & 0x80)
	196	kbd_put_keycode(0xe0);
	197	if (ev->type == SDL_KEYUP)
	198	kbd_put_keycode(keycode \| 0x80);
	199	else
	200	kbd_put_keycode(keycode & 0x7f);
0f0b7264 FB	201	}
0f0b7264 FB	202
8a7ddc38 FB	203	static void sdl_update_caption(void)
	204	{
	205	char buf[1024];
	206	strcpy(buf, "QEMU");
	207	if (!vm_running) {
	208	strcat(buf, " [Stopped]");
	209	}
	210	if (gui_grab) {
	211	strcat(buf, " - Press Ctrl-Shift to exit grab");
	212	}
	213	SDL_WM_SetCaption(buf, "QEMU");
	214	}
	215
0f0b7264 FB	216	static void sdl_grab_start(void)
0f0b7264 FB	217	{
0f0b7264 FB	218	SDL_ShowCursor(0);
	219	SDL_WM_GrabInput(SDL_GRAB_ON);
	220	/* dummy read to avoid moving the mouse */
	221	SDL_GetRelativeMouseState(NULL, NULL);
	222	gui_grab = 1;
8a7ddc38	223	sdl_update_caption();
0f0b7264 FB	224	}
	225
	226	static void sdl_grab_end(void)
	227	{
0f0b7264 FB	228	SDL_WM_GrabInput(SDL_GRAB_OFF);
	229	SDL_ShowCursor(1);
	230	gui_grab = 0;
8a7ddc38	231	sdl_update_caption();
0f0b7264 FB	232	}
	233
	234	static void sdl_send_mouse_event(void)
	235	{
	236	int dx, dy, dz, state, buttons;
	237	state = SDL_GetRelativeMouseState(&dx, &dy);
	238	buttons = 0;
	239	if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
	240	buttons \|= MOUSE_EVENT_LBUTTON;
	241	if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
	242	buttons \|= MOUSE_EVENT_RBUTTON;
	243	if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
	244	buttons \|= MOUSE_EVENT_MBUTTON;
	245	/* XXX: test wheel */
	246	dz = 0;
8351d2d4	247	#ifdef SDL_BUTTON_WHEELUP
0f0b7264 FB	248	if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
	249	dz--;
	250	if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
	251	dz++;
8351d2d4	252	#endif
0f0b7264 FB	253	kbd_mouse_event(dx, dy, dz, buttons);
	254	}
	255
8e9c4afe FB	256	static void toggle_full_screen(DisplayState *ds)
	257	{
	258	gui_fullscreen = !gui_fullscreen;
	259	sdl_resize(ds, screen->w, screen->h);
	260	if (gui_fullscreen) {
	261	gui_saved_grab = gui_grab;
	262	sdl_grab_start();
	263	} else {
	264	if (!gui_saved_grab)
	265	sdl_grab_end();
	266	}
	267	vga_update_display();
	268	sdl_update(ds, 0, 0, screen->w, screen->h);
	269	}
	270
0f0b7264 FB	271	static void sdl_refresh(DisplayState *ds)
	272	{
	273	SDL_Event ev1, *ev = &ev1;
8e9c4afe FB	274	int mod_state;
8e9c4afe FB	275
8a7ddc38 FB	276	if (last_vm_running != vm_running) {
	277	last_vm_running = vm_running;
	278	sdl_update_caption();
	279	}
	280
0f0b7264 FB	281	vga_update_display();
	282	while (SDL_PollEvent(ev)) {
	283	switch (ev->type) {
	284	case SDL_VIDEOEXPOSE:
	285	sdl_update(ds, 0, 0, screen->w, screen->h);
	286	break;
	287	case SDL_KEYDOWN:
	288	case SDL_KEYUP:
	289	if (ev->type == SDL_KEYDOWN) {
8e9c4afe FB	290	mod_state = (SDL_GetModState() & (KMOD_LSHIFT \| KMOD_LCTRL)) ==
	291	(KMOD_LSHIFT \| KMOD_LCTRL);
	292	gui_key_modifier_pressed = mod_state;
	293	if (gui_key_modifier_pressed &&
	294	ev->key.keysym.sym == SDLK_f) {
	295	gui_keysym = ev->key.keysym.sym;
	296	}
	297	} else if (ev->type == SDL_KEYUP) {
	298	mod_state = (SDL_GetModState() & (KMOD_LSHIFT \| KMOD_LCTRL));
	299	if (!mod_state) {
	300	if (gui_key_modifier_pressed) {
	301	switch(gui_keysym) {
	302	case SDLK_f:
	303	toggle_full_screen(ds);
	304	break;
	305	case 0:
	306	/* exit/enter grab if pressing Ctrl-Shift */
	307	if (!gui_grab)
	308	sdl_grab_start();
	309	else
	310	sdl_grab_end();
	311	break;
	312	}
	313	gui_key_modifier_pressed = 0;
	314	gui_keysym = 0;
	315	}
0f0b7264 FB	316	}
	317	}
	318	sdl_process_key(&ev->key);
	319	break;
	320	case SDL_QUIT:
	321	reset_requested = 1;
	322	break;
	323	case SDL_MOUSEMOTION:
	324	if (gui_grab) {
	325	sdl_send_mouse_event();
	326	}
	327	break;
	328	case SDL_MOUSEBUTTONDOWN:
	329	case SDL_MOUSEBUTTONUP:
	330	{
	331	SDL_MouseButtonEvent *bev = &ev->button;
	332	if (!gui_grab) {
	333	if (ev->type == SDL_MOUSEBUTTONDOWN &&
	334	(bev->state & SDL_BUTTON_LMASK)) {
	335	/* start grabbing all events */
	336	sdl_grab_start();
	337	}
	338	} else {
	339	sdl_send_mouse_event();
	340	}
	341	}
	342	break;
0294ffb9 FB	343	case SDL_ACTIVEEVENT:
	344	if (gui_grab && (ev->active.gain & SDL_ACTIVEEVENTMASK) == 0) {
	345	sdl_grab_end();
	346	}
	347	break;
0f0b7264 FB	348	default:
	349	break;
	350	}
	351	}
	352	}
	353
898712a8 FB	354	static void sdl_cleanup(void)
	355	{
	356	SDL_Quit();
	357	}
	358
0f0b7264 FB	359	void sdl_display_init(DisplayState *ds)
	360	{
	361	int flags;
	362
	363	flags = SDL_INIT_VIDEO \| SDL_INIT_NOPARACHUTE;
	364	if (SDL_Init (flags)) {
	365	fprintf(stderr, "Could not initialize SDL - exiting\n");
	366	exit(1);
	367	}
67b915a5 FB	368
67b915a5 FB	369	#ifndef _WIN32
0ae04d73 FB	370	/* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
	371	signal(SIGINT, SIG_DFL);
	372	signal(SIGQUIT, SIG_DFL);
67b915a5	373	#endif
0ae04d73	374
0f0b7264 FB	375	ds->dpy_update = sdl_update;
	376	ds->dpy_resize = sdl_resize;
	377	ds->dpy_refresh = sdl_refresh;
	378
	379	sdl_resize(ds, 640, 400);
8a7ddc38	380	sdl_update_caption();
0f0b7264 FB	381	SDL_EnableKeyRepeat(250, 50);
0f0b7264 FB	382	gui_grab = 0;
898712a8 FB	383
898712a8 FB	384	atexit(sdl_cleanup);
0f0b7264	385	}