[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 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;
    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 uint32_t x_keycode_to_pc_keycode[61] = {
   0x47e0,      /*  97  Home   */
   0x48e0,      /*  98  Up     */
   0x49e0,      /*  99  PgUp   */
   0x4be0,      /* 100  Left   */
   0x4c,        /* 101  KP-5   */
   0x4de0,      /* 102  Right  */
   0x4fe0,      /* 103  End    */
   0x50e0,      /* 104  Down   */
   0x51e0,      /* 105  PgDn   */
   0x52e0,      /* 106  Ins    */
   0x53e0,      /* 107  Del    */
   0x1ce0,      /* 108  Enter  */
   0x1de0,      /* 109  Ctrl-R */
   0x451de1,    /* 110  Pause  */
   0x37e0,      /* 111  Print  */
   0x35e0,      /* 112  Divide */
   0x38e0,      /* 113  Alt-R  */
   0x46e0,      /* 114  Break  */   
   0x0,         /* 115 */
   0x0,         /* 116 */
   0x0,         /* 117 */
   0x0,         /* 118 */
   0x0,         /* 119 */
   0x0,         /* 120 */
   0x0,         /* 121 */
   0x0,         /* 122 */
   0x0,         /* 123 */
   0x0,         /* 124 */
   0x0,         /* 125 */
   0x0,         /* 126 */
   0x0,         /* 127 */
   0x0,         /* 128 */
   0x0,         /* 129 */
   0x0,         /* 130 */
   0x0,         /* 131 */
   0x0,         /* 132 */
   0x0,         /* 133 */
   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;
    
    /* XXX: not portable, but avoids complicated mappings */
    keycode = ev->keysym.scancode;
    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;
    }
    
    /* now send the key code */
    while (keycode != 0) {
        v = keycode & 0xff;
        if (ev->type == SDL_KEYUP)
            v |= 0x80;
        kbd_put_keycode(v);
        keycode >>= 8;
    }
}

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 sdl_refresh(DisplayState *ds)
{
    SDL_Event ev1, *ev = &ev1;

    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) {
                if ((SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL)) ==
                    (KMOD_LSHIFT | KMOD_LCTRL)) {
                    /* exit/enter grab if pressing Ctrl-Shift */
                    if (!gui_grab)
                        sdl_grab_start();
                    else
                        sdl_grab_end();
                }
            }
            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;
        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;
0f0b7264 FB	35
	36	static void sdl_update(DisplayState *ds, int x, int y, int w, int h)
	37	{
898712a8	38	// printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
0f0b7264 FB	39	SDL_UpdateRect(screen, x, y, w, h);
	40	}
	41
	42	static void sdl_resize(DisplayState *ds, int w, int h)
	43	{
	44	int flags;
	45
	46	// printf("resizing to %d %d\n", w, h);
	47
	48	flags = SDL_HWSURFACE\|SDL_ASYNCBLIT\|SDL_HWACCEL;
	49	flags \|= SDL_RESIZABLE;
	50	screen = SDL_SetVideoMode(w, h, 0, flags);
	51	if (!screen) {
	52	fprintf(stderr, "Could not open SDL display\n");
	53	exit(1);
	54	}
	55	ds->data = screen->pixels;
	56	ds->linesize = screen->pitch;
	57	ds->depth = screen->format->BitsPerPixel;
	58	}
	59
	60	static const uint32_t x_keycode_to_pc_keycode[61] = {
	61	0x47e0, /* 97 Home */
	62	0x48e0, /* 98 Up */
	63	0x49e0, /* 99 PgUp */
	64	0x4be0, /* 100 Left */
	65	0x4c, /* 101 KP-5 */
	66	0x4de0, /* 102 Right */
	67	0x4fe0, /* 103 End */
	68	0x50e0, /* 104 Down */
	69	0x51e0, /* 105 PgDn */
	70	0x52e0, /* 106 Ins */
	71	0x53e0, /* 107 Del */
	72	0x1ce0, /* 108 Enter */
	73	0x1de0, /* 109 Ctrl-R */
	74	0x451de1, /* 110 Pause */
	75	0x37e0, /* 111 Print */
	76	0x35e0, /* 112 Divide */
	77	0x38e0, /* 113 Alt-R */
	78	0x46e0, /* 114 Break */
	79	0x0, /* 115 */
	80	0x0, /* 116 */
	81	0x0, /* 117 */
	82	0x0, /* 118 */
	83	0x0, /* 119 */
	84	0x0, /* 120 */
	85	0x0, /* 121 */
	86	0x0, /* 122 */
	87	0x0, /* 123 */
	88	0x0, /* 124 */
	89	0x0, /* 125 */
	90	0x0, /* 126 */
	91	0x0, /* 127 */
	92	0x0, /* 128 */
	93	0x0, /* 129 */
	94	0x0, /* 130 */
	95	0x0, /* 131 */
	96	0x0, /* 132 */
	97	0x0, /* 133 */
	98	0x0, /* 134 */
	99	0x0, /* 135 */
	100	0x47, /* 136 KP_7 */
	101	0x48, /* 137 KP_8 */
	102	0x49, /* 138 KP_9 */
103	0x4b, /* 139 KP_4 */
104	0x4c, /* 140 KP_5 */
105	0x4d, /* 141 KP_6 */
106	0x4f, /* 142 KP_1 */
107	0x50, /* 143 KP_2 */
108	0x51, /* 144 KP_3 */
109	0x52, /* 145 KP_0 */
110	0x53, /* 146 KP_. */
111	0x47, /* 147 KP_HOME */
112	0x48, /* 148 KP_UP */
113	0x49, /* 149 KP_PgUp */
114	0x4b, /* 150 KP_Left */
115	0x4c, /* 151 KP_ */
116	0x4d, /* 152 KP_Right */
117	0x4f, /* 153 KP_End */
118	0x50, /* 154 KP_Down */
119	0x51, /* 155 KP_PgDn */
120	0x52, /* 156 KP_Ins */
121	0x53, /* 157 KP_Del */
122	};
123
124	static void sdl_process_key(SDL_KeyboardEvent *ev)
125	{
126	int keycode, v;
127
128	/* XXX: not portable, but avoids complicated mappings */
129	keycode = ev->keysym.scancode;
130	if (keycode < 9) {
131	keycode = 0;
132	} else if (keycode < 97) {
133	keycode -= 8; /* just an offset */
134	} else if (keycode < 158) {
135	/* use conversion table */
136	keycode = x_keycode_to_pc_keycode[keycode - 97];
137	} else {
138	keycode = 0;
139	}
140
141	/* now send the key code */
142	while (keycode != 0) {
143	v = keycode & 0xff;
144	if (ev->type == SDL_KEYUP)
145	v \|= 0x80;
146	kbd_put_keycode(v);
147	keycode >>= 8;
148	}
149	}
150
8a7ddc38 FB	151	static void sdl_update_caption(void)
	152	{
	153	char buf[1024];
	154	strcpy(buf, "QEMU");
	155	if (!vm_running) {
	156	strcat(buf, " [Stopped]");
	157	}
	158	if (gui_grab) {
	159	strcat(buf, " - Press Ctrl-Shift to exit grab");
	160	}
	161	SDL_WM_SetCaption(buf, "QEMU");
	162	}
	163
0f0b7264 FB	164	static void sdl_grab_start(void)
0f0b7264 FB	165	{
0f0b7264 FB	166	SDL_ShowCursor(0);
	167	SDL_WM_GrabInput(SDL_GRAB_ON);
	168	/* dummy read to avoid moving the mouse */
	169	SDL_GetRelativeMouseState(NULL, NULL);
	170	gui_grab = 1;
8a7ddc38	171	sdl_update_caption();
0f0b7264 FB	172	}
	173
	174	static void sdl_grab_end(void)
	175	{
0f0b7264 FB	176	SDL_WM_GrabInput(SDL_GRAB_OFF);
	177	SDL_ShowCursor(1);
	178	gui_grab = 0;
8a7ddc38	179	sdl_update_caption();
0f0b7264 FB	180	}
	181
	182	static void sdl_send_mouse_event(void)
	183	{
	184	int dx, dy, dz, state, buttons;
	185	state = SDL_GetRelativeMouseState(&dx, &dy);
	186	buttons = 0;
	187	if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
	188	buttons \|= MOUSE_EVENT_LBUTTON;
	189	if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
	190	buttons \|= MOUSE_EVENT_RBUTTON;
	191	if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
	192	buttons \|= MOUSE_EVENT_MBUTTON;
	193	/* XXX: test wheel */
	194	dz = 0;
8351d2d4	195	#ifdef SDL_BUTTON_WHEELUP
0f0b7264 FB	196	if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
	197	dz--;
	198	if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
	199	dz++;
8351d2d4	200	#endif
0f0b7264 FB	201	kbd_mouse_event(dx, dy, dz, buttons);
	202	}
	203
	204	static void sdl_refresh(DisplayState *ds)
	205	{
	206	SDL_Event ev1, *ev = &ev1;
	207
8a7ddc38 FB	208	if (last_vm_running != vm_running) {
	209	last_vm_running = vm_running;
	210	sdl_update_caption();
	211	}
	212
0f0b7264 FB	213	vga_update_display();
	214	while (SDL_PollEvent(ev)) {
	215	switch (ev->type) {
	216	case SDL_VIDEOEXPOSE:
	217	sdl_update(ds, 0, 0, screen->w, screen->h);
	218	break;
	219	case SDL_KEYDOWN:
	220	case SDL_KEYUP:
	221	if (ev->type == SDL_KEYDOWN) {
	222	if ((SDL_GetModState() & (KMOD_LSHIFT \| KMOD_LCTRL)) ==
	223	(KMOD_LSHIFT \| KMOD_LCTRL)) {
	224	/* exit/enter grab if pressing Ctrl-Shift */
	225	if (!gui_grab)
	226	sdl_grab_start();
	227	else
	228	sdl_grab_end();
	229	}
	230	}
	231	sdl_process_key(&ev->key);
	232	break;
	233	case SDL_QUIT:
	234	reset_requested = 1;
	235	break;
	236	case SDL_MOUSEMOTION:
	237	if (gui_grab) {
	238	sdl_send_mouse_event();
	239	}
	240	break;
	241	case SDL_MOUSEBUTTONDOWN:
	242	case SDL_MOUSEBUTTONUP:
	243	{
	244	SDL_MouseButtonEvent *bev = &ev->button;
	245	if (!gui_grab) {
	246	if (ev->type == SDL_MOUSEBUTTONDOWN &&
	247	(bev->state & SDL_BUTTON_LMASK)) {
	248	/* start grabbing all events */
	249	sdl_grab_start();
	250	}
	251	} else {
	252	sdl_send_mouse_event();
	253	}
	254	}
	255	break;
	256	default:
	257	break;
	258	}
	259	}
	260	}
	261
898712a8 FB	262	static void sdl_cleanup(void)
	263	{
	264	SDL_Quit();
	265	}
	266
0f0b7264 FB	267	void sdl_display_init(DisplayState *ds)
	268	{
	269	int flags;
	270
	271	flags = SDL_INIT_VIDEO \| SDL_INIT_NOPARACHUTE;
	272	if (SDL_Init (flags)) {
	273	fprintf(stderr, "Could not initialize SDL - exiting\n");
	274	exit(1);
	275	}
67b915a5 FB	276
67b915a5 FB	277	#ifndef _WIN32
0ae04d73 FB	278	/* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
	279	signal(SIGINT, SIG_DFL);
	280	signal(SIGQUIT, SIG_DFL);
67b915a5	281	#endif
0ae04d73	282
0f0b7264 FB	283	ds->dpy_update = sdl_update;
	284	ds->dpy_resize = sdl_resize;
	285	ds->dpy_refresh = sdl_refresh;
	286
	287	sdl_resize(ds, 640, 400);
8a7ddc38	288	sdl_update_caption();
0f0b7264 FB	289	SDL_EnableKeyRepeat(250, 50);
0f0b7264 FB	290	gui_grab = 0;
898712a8 FB	291
898712a8 FB	292	atexit(sdl_cleanup);
0f0b7264	293	}