root / sdl.c @ 97eb5b14
History | View | Annotate | Download (8.1 kB)
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 |
*/
|
24 |
#include <stdlib.h> |
25 |
#include <stdio.h> |
26 |
#include <stdarg.h> |
27 |
#include <string.h> |
28 |
#include <getopt.h> |
29 |
#include <inttypes.h> |
30 |
#include <unistd.h> |
31 |
#include <sys/mman.h> |
32 |
#include <fcntl.h> |
33 |
#include <signal.h> |
34 |
#include <time.h> |
35 |
#include <sys/time.h> |
36 |
#include <malloc.h> |
37 |
#include <termios.h> |
38 |
#include <sys/poll.h> |
39 |
#include <errno.h> |
40 |
#include <sys/wait.h> |
41 |
#include <netinet/in.h> |
42 |
|
43 |
#include <SDL.h> |
44 |
|
45 |
#include "cpu.h" |
46 |
#include "exec-all.h" |
47 |
|
48 |
#include "vl.h" |
49 |
|
50 |
static SDL_Surface *screen;
|
51 |
static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ |
52 |
|
53 |
static void sdl_update(DisplayState *ds, int x, int y, int w, int h) |
54 |
{ |
55 |
// printf("updating x=%d y=%d w=%d h=%d\n", x, y, w, h);
|
56 |
SDL_UpdateRect(screen, x, y, w, h); |
57 |
} |
58 |
|
59 |
static void sdl_resize(DisplayState *ds, int w, int h) |
60 |
{ |
61 |
int flags;
|
62 |
|
63 |
// printf("resizing to %d %d\n", w, h);
|
64 |
|
65 |
flags = SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_HWACCEL; |
66 |
flags |= SDL_RESIZABLE; |
67 |
screen = SDL_SetVideoMode(w, h, 0, flags);
|
68 |
if (!screen) {
|
69 |
fprintf(stderr, "Could not open SDL display\n");
|
70 |
exit(1);
|
71 |
} |
72 |
ds->data = screen->pixels; |
73 |
ds->linesize = screen->pitch; |
74 |
ds->depth = screen->format->BitsPerPixel; |
75 |
} |
76 |
|
77 |
static const uint32_t x_keycode_to_pc_keycode[61] = { |
78 |
0x47e0, /* 97 Home */ |
79 |
0x48e0, /* 98 Up */ |
80 |
0x49e0, /* 99 PgUp */ |
81 |
0x4be0, /* 100 Left */ |
82 |
0x4c, /* 101 KP-5 */ |
83 |
0x4de0, /* 102 Right */ |
84 |
0x4fe0, /* 103 End */ |
85 |
0x50e0, /* 104 Down */ |
86 |
0x51e0, /* 105 PgDn */ |
87 |
0x52e0, /* 106 Ins */ |
88 |
0x53e0, /* 107 Del */ |
89 |
0x1ce0, /* 108 Enter */ |
90 |
0x1de0, /* 109 Ctrl-R */ |
91 |
0x451de1, /* 110 Pause */ |
92 |
0x37e0, /* 111 Print */ |
93 |
0x35e0, /* 112 Divide */ |
94 |
0x38e0, /* 113 Alt-R */ |
95 |
0x46e0, /* 114 Break */ |
96 |
0x0, /* 115 */ |
97 |
0x0, /* 116 */ |
98 |
0x0, /* 117 */ |
99 |
0x0, /* 118 */ |
100 |
0x0, /* 119 */ |
101 |
0x0, /* 120 */ |
102 |
0x0, /* 121 */ |
103 |
0x0, /* 122 */ |
104 |
0x0, /* 123 */ |
105 |
0x0, /* 124 */ |
106 |
0x0, /* 125 */ |
107 |
0x0, /* 126 */ |
108 |
0x0, /* 127 */ |
109 |
0x0, /* 128 */ |
110 |
0x0, /* 129 */ |
111 |
0x0, /* 130 */ |
112 |
0x0, /* 131 */ |
113 |
0x0, /* 132 */ |
114 |
0x0, /* 133 */ |
115 |
0x0, /* 134 */ |
116 |
0x0, /* 135 */ |
117 |
0x47, /* 136 KP_7 */ |
118 |
0x48, /* 137 KP_8 */ |
119 |
0x49, /* 138 KP_9 */ |
120 |
0x4b, /* 139 KP_4 */ |
121 |
0x4c, /* 140 KP_5 */ |
122 |
0x4d, /* 141 KP_6 */ |
123 |
0x4f, /* 142 KP_1 */ |
124 |
0x50, /* 143 KP_2 */ |
125 |
0x51, /* 144 KP_3 */ |
126 |
0x52, /* 145 KP_0 */ |
127 |
0x53, /* 146 KP_. */ |
128 |
0x47, /* 147 KP_HOME */ |
129 |
0x48, /* 148 KP_UP */ |
130 |
0x49, /* 149 KP_PgUp */ |
131 |
0x4b, /* 150 KP_Left */ |
132 |
0x4c, /* 151 KP_ */ |
133 |
0x4d, /* 152 KP_Right */ |
134 |
0x4f, /* 153 KP_End */ |
135 |
0x50, /* 154 KP_Down */ |
136 |
0x51, /* 155 KP_PgDn */ |
137 |
0x52, /* 156 KP_Ins */ |
138 |
0x53, /* 157 KP_Del */ |
139 |
}; |
140 |
|
141 |
static void sdl_process_key(SDL_KeyboardEvent *ev) |
142 |
{ |
143 |
int keycode, v;
|
144 |
|
145 |
/* XXX: not portable, but avoids complicated mappings */
|
146 |
keycode = ev->keysym.scancode; |
147 |
if (keycode < 9) { |
148 |
keycode = 0;
|
149 |
} else if (keycode < 97) { |
150 |
keycode -= 8; /* just an offset */ |
151 |
} else if (keycode < 158) { |
152 |
/* use conversion table */
|
153 |
keycode = x_keycode_to_pc_keycode[keycode - 97];
|
154 |
} else {
|
155 |
keycode = 0;
|
156 |
} |
157 |
|
158 |
/* now send the key code */
|
159 |
while (keycode != 0) { |
160 |
v = keycode & 0xff;
|
161 |
if (ev->type == SDL_KEYUP)
|
162 |
v |= 0x80;
|
163 |
kbd_put_keycode(v); |
164 |
keycode >>= 8;
|
165 |
} |
166 |
} |
167 |
|
168 |
static void sdl_grab_start(void) |
169 |
{ |
170 |
SDL_WM_SetCaption("QEMU - Press Ctrl-Shift to exit grab", "QEMU"); |
171 |
SDL_ShowCursor(0);
|
172 |
SDL_WM_GrabInput(SDL_GRAB_ON); |
173 |
/* dummy read to avoid moving the mouse */
|
174 |
SDL_GetRelativeMouseState(NULL, NULL); |
175 |
gui_grab = 1;
|
176 |
} |
177 |
|
178 |
static void sdl_grab_end(void) |
179 |
{ |
180 |
SDL_WM_SetCaption("QEMU", "QEMU"); |
181 |
SDL_WM_GrabInput(SDL_GRAB_OFF); |
182 |
SDL_ShowCursor(1);
|
183 |
gui_grab = 0;
|
184 |
} |
185 |
|
186 |
static void sdl_send_mouse_event(void) |
187 |
{ |
188 |
int dx, dy, dz, state, buttons;
|
189 |
state = SDL_GetRelativeMouseState(&dx, &dy); |
190 |
buttons = 0;
|
191 |
if (state & SDL_BUTTON(SDL_BUTTON_LEFT))
|
192 |
buttons |= MOUSE_EVENT_LBUTTON; |
193 |
if (state & SDL_BUTTON(SDL_BUTTON_RIGHT))
|
194 |
buttons |= MOUSE_EVENT_RBUTTON; |
195 |
if (state & SDL_BUTTON(SDL_BUTTON_MIDDLE))
|
196 |
buttons |= MOUSE_EVENT_MBUTTON; |
197 |
/* XXX: test wheel */
|
198 |
dz = 0;
|
199 |
#ifdef SDL_BUTTON_WHEELUP
|
200 |
if (state & SDL_BUTTON(SDL_BUTTON_WHEELUP))
|
201 |
dz--; |
202 |
if (state & SDL_BUTTON(SDL_BUTTON_WHEELDOWN))
|
203 |
dz++; |
204 |
#endif
|
205 |
kbd_mouse_event(dx, dy, dz, buttons); |
206 |
} |
207 |
|
208 |
static void sdl_refresh(DisplayState *ds) |
209 |
{ |
210 |
SDL_Event ev1, *ev = &ev1; |
211 |
|
212 |
vga_update_display(); |
213 |
while (SDL_PollEvent(ev)) {
|
214 |
switch (ev->type) {
|
215 |
case SDL_VIDEOEXPOSE:
|
216 |
sdl_update(ds, 0, 0, screen->w, screen->h); |
217 |
break;
|
218 |
case SDL_KEYDOWN:
|
219 |
case SDL_KEYUP:
|
220 |
if (ev->type == SDL_KEYDOWN) {
|
221 |
if ((SDL_GetModState() & (KMOD_LSHIFT | KMOD_LCTRL)) ==
|
222 |
(KMOD_LSHIFT | KMOD_LCTRL)) { |
223 |
/* exit/enter grab if pressing Ctrl-Shift */
|
224 |
if (!gui_grab)
|
225 |
sdl_grab_start(); |
226 |
else
|
227 |
sdl_grab_end(); |
228 |
} |
229 |
} |
230 |
sdl_process_key(&ev->key); |
231 |
break;
|
232 |
case SDL_QUIT:
|
233 |
reset_requested = 1;
|
234 |
break;
|
235 |
case SDL_MOUSEMOTION:
|
236 |
if (gui_grab) {
|
237 |
sdl_send_mouse_event(); |
238 |
} |
239 |
break;
|
240 |
case SDL_MOUSEBUTTONDOWN:
|
241 |
case SDL_MOUSEBUTTONUP:
|
242 |
{ |
243 |
SDL_MouseButtonEvent *bev = &ev->button; |
244 |
if (!gui_grab) {
|
245 |
if (ev->type == SDL_MOUSEBUTTONDOWN &&
|
246 |
(bev->state & SDL_BUTTON_LMASK)) { |
247 |
/* start grabbing all events */
|
248 |
sdl_grab_start(); |
249 |
} |
250 |
} else {
|
251 |
sdl_send_mouse_event(); |
252 |
} |
253 |
} |
254 |
break;
|
255 |
default:
|
256 |
break;
|
257 |
} |
258 |
} |
259 |
} |
260 |
|
261 |
static void sdl_cleanup(void) |
262 |
{ |
263 |
SDL_Quit(); |
264 |
} |
265 |
|
266 |
void sdl_display_init(DisplayState *ds)
|
267 |
{ |
268 |
int flags;
|
269 |
|
270 |
flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE; |
271 |
if (SDL_Init (flags)) {
|
272 |
fprintf(stderr, "Could not initialize SDL - exiting\n");
|
273 |
exit(1);
|
274 |
} |
275 |
/* NOTE: we still want Ctrl-C to work, so we undo the SDL redirections */
|
276 |
signal(SIGINT, SIG_DFL); |
277 |
signal(SIGQUIT, SIG_DFL); |
278 |
|
279 |
ds->dpy_update = sdl_update; |
280 |
ds->dpy_resize = sdl_resize; |
281 |
ds->dpy_refresh = sdl_refresh; |
282 |
|
283 |
sdl_resize(ds, 640, 400); |
284 |
SDL_WM_SetCaption("QEMU", "QEMU"); |
285 |
SDL_EnableKeyRepeat(250, 50); |
286 |
gui_grab = 0;
|
287 |
|
288 |
atexit(sdl_cleanup); |
289 |
} |