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git.proxmox.com Git - qemu.git/blob - sdl.c
2 * QEMU SDL display driver
4 * Copyright (c) 2003 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
41 #include <netinet/in.h>
50 static SDL_Surface
*screen
;
51 static int gui_grab
; /* if true, all keyboard/mouse events are grabbed */
53 static void sdl_update(DisplayState
*ds
, int x
, int y
, int w
, int h
)
55 SDL_UpdateRect(screen
, x
, y
, w
, h
);
58 static void sdl_resize(DisplayState
*ds
, int w
, int h
)
62 // printf("resizing to %d %d\n", w, h);
64 flags
= SDL_HWSURFACE
|SDL_ASYNCBLIT
|SDL_HWACCEL
;
65 flags
|= SDL_RESIZABLE
;
66 screen
= SDL_SetVideoMode(w
, h
, 0, flags
);
68 fprintf(stderr
, "Could not open SDL display\n");
71 ds
->data
= screen
->pixels
;
72 ds
->linesize
= screen
->pitch
;
73 ds
->depth
= screen
->format
->BitsPerPixel
;
76 static const uint32_t x_keycode_to_pc_keycode
[61] = {
80 0x4be0, /* 100 Left */
82 0x4de0, /* 102 Right */
84 0x50e0, /* 104 Down */
85 0x51e0, /* 105 PgDn */
88 0x1ce0, /* 108 Enter */
89 0x1de0, /* 109 Ctrl-R */
90 0x451de1, /* 110 Pause */
91 0x37e0, /* 111 Print */
92 0x35e0, /* 112 Divide */
93 0x38e0, /* 113 Alt-R */
94 0x46e0, /* 114 Break */
127 0x47, /* 147 KP_HOME */
128 0x48, /* 148 KP_UP */
129 0x49, /* 149 KP_PgUp */
130 0x4b, /* 150 KP_Left */
132 0x4d, /* 152 KP_Right */
133 0x4f, /* 153 KP_End */
134 0x50, /* 154 KP_Down */
135 0x51, /* 155 KP_PgDn */
136 0x52, /* 156 KP_Ins */
137 0x53, /* 157 KP_Del */
140 static void sdl_process_key(SDL_KeyboardEvent
*ev
)
144 /* XXX: not portable, but avoids complicated mappings */
145 keycode
= ev
->keysym
.scancode
;
148 } else if (keycode
< 97) {
149 keycode
-= 8; /* just an offset */
150 } else if (keycode
< 158) {
151 /* use conversion table */
152 keycode
= x_keycode_to_pc_keycode
[keycode
- 97];
157 /* now send the key code */
158 while (keycode
!= 0) {
160 if (ev
->type
== SDL_KEYUP
)
167 static void sdl_grab_start(void)
169 SDL_WM_SetCaption("QEMU - Press Ctrl-Shift to exit grab", "QEMU");
171 SDL_WM_GrabInput(SDL_GRAB_ON
);
172 /* dummy read to avoid moving the mouse */
173 SDL_GetRelativeMouseState(NULL
, NULL
);
177 static void sdl_grab_end(void)
179 SDL_WM_SetCaption("QEMU", "QEMU");
180 SDL_WM_GrabInput(SDL_GRAB_OFF
);
185 static void sdl_send_mouse_event(void)
187 int dx
, dy
, dz
, state
, buttons
;
188 state
= SDL_GetRelativeMouseState(&dx
, &dy
);
190 if (state
& SDL_BUTTON(SDL_BUTTON_LEFT
))
191 buttons
|= MOUSE_EVENT_LBUTTON
;
192 if (state
& SDL_BUTTON(SDL_BUTTON_RIGHT
))
193 buttons
|= MOUSE_EVENT_RBUTTON
;
194 if (state
& SDL_BUTTON(SDL_BUTTON_MIDDLE
))
195 buttons
|= MOUSE_EVENT_MBUTTON
;
196 /* XXX: test wheel */
198 if (state
& SDL_BUTTON(SDL_BUTTON_WHEELUP
))
200 if (state
& SDL_BUTTON(SDL_BUTTON_WHEELDOWN
))
202 kbd_mouse_event(dx
, dy
, dz
, buttons
);
205 static void sdl_refresh(DisplayState
*ds
)
207 SDL_Event ev1
, *ev
= &ev1
;
209 vga_update_display();
210 while (SDL_PollEvent(ev
)) {
212 case SDL_VIDEOEXPOSE
:
213 sdl_update(ds
, 0, 0, screen
->w
, screen
->h
);
217 if (ev
->type
== SDL_KEYDOWN
) {
218 if ((SDL_GetModState() & (KMOD_LSHIFT
| KMOD_LCTRL
)) ==
219 (KMOD_LSHIFT
| KMOD_LCTRL
)) {
220 /* exit/enter grab if pressing Ctrl-Shift */
227 sdl_process_key(&ev
->key
);
232 case SDL_MOUSEMOTION
:
234 sdl_send_mouse_event();
237 case SDL_MOUSEBUTTONDOWN
:
238 case SDL_MOUSEBUTTONUP
:
240 SDL_MouseButtonEvent
*bev
= &ev
->button
;
242 if (ev
->type
== SDL_MOUSEBUTTONDOWN
&&
243 (bev
->state
& SDL_BUTTON_LMASK
)) {
244 /* start grabbing all events */
248 sdl_send_mouse_event();
258 void sdl_display_init(DisplayState
*ds
)
262 flags
= SDL_INIT_VIDEO
| SDL_INIT_NOPARACHUTE
;
263 if (SDL_Init (flags
)) {
264 fprintf(stderr
, "Could not initialize SDL - exiting\n");
267 /* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
268 signal(SIGINT
, SIG_DFL
);
269 signal(SIGQUIT
, SIG_DFL
);
271 ds
->dpy_update
= sdl_update
;
272 ds
->dpy_resize
= sdl_resize
;
273 ds
->dpy_refresh
= sdl_refresh
;
275 sdl_resize(ds
, 640, 400);
276 SDL_WM_SetCaption("QEMU", "QEMU");
277 SDL_EnableKeyRepeat(250, 50);