diff options
author | erdgeist <> | 2003-05-13 12:05:12 +0000 |
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committer | erdgeist <> | 2003-05-13 12:05:12 +0000 |
commit | 866f0ad8030ea2ceea22a4d61e6ff0006546c3fa (patch) | |
tree | 54f3af1248bce246e1dd92b196b818271d21f2f6 /X11.c |
Here we go
Diffstat (limited to 'X11.c')
-rwxr-xr-x | X11.c | 264 |
1 files changed, 264 insertions, 0 deletions
@@ -0,0 +1,264 @@ | |||
1 | #include <X11/Xlib.h> | ||
2 | #include <X11/Xos.h> | ||
3 | #include <X11/Xutil.h> | ||
4 | #include <X11/Xatom.h> | ||
5 | #include <X11/keysym.h> | ||
6 | #include <X11/cursorfont.h> | ||
7 | |||
8 | #define ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
9 | |||
10 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
11 | #include <sys/ipc.h> | ||
12 | #include <sys/shm.h> | ||
13 | #include <sys/time.h> | ||
14 | #include <X11/extensions/XShm.h> | ||
15 | |||
16 | static int UsingSharedMemoryPixmaps = 0; | ||
17 | #endif | ||
18 | |||
19 | #include <assert.h> | ||
20 | #include <unistd.h> | ||
21 | #include <stdio.h> | ||
22 | #include <stdlib.h> | ||
23 | #include <signal.h> | ||
24 | |||
25 | #include "Gfx.h" | ||
26 | #include "Vector.h" | ||
27 | #include "Movie.h" | ||
28 | |||
29 | #define NIL (0) | ||
30 | #define EVENT_MASK ( ExposureMask | \ | ||
31 | KeyPressMask | \ | ||
32 | ButtonPressMask | \ | ||
33 | ButtonReleaseMask | \ | ||
34 | ButtonMotionMask) | ||
35 | |||
36 | /*** global data ***/ | ||
37 | |||
38 | static Display * dpy; | ||
39 | static Visual vis; | ||
40 | static unsigned int blackColor; | ||
41 | static unsigned int whiteColor; | ||
42 | static Window win; | ||
43 | static XEvent e; | ||
44 | static GC gc; | ||
45 | static XImage * image; | ||
46 | static void * offscreen = (void*)0; | ||
47 | static int mydepth; | ||
48 | static signed int startx, starty; | ||
49 | static int width = 400, height = 400; | ||
50 | |||
51 | /*** End of global data ***/ | ||
52 | void redraw(void) { | ||
53 | |||
54 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
55 | if( UsingSharedMemoryPixmaps ) { | ||
56 | XShmPutImage( dpy, win, gc, image, 0, 0, 0, 0, width, height, 0 ); | ||
57 | } else { | ||
58 | #endif | ||
59 | XPutImage ( dpy, win, gc, image, 0, 0, 0, 0, width, height ); | ||
60 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
61 | } | ||
62 | #endif | ||
63 | |||
64 | } | ||
65 | |||
66 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
67 | XShmSegmentInfo * shminfo; | ||
68 | #endif | ||
69 | |||
70 | void handle_signal( int sig ) { | ||
71 | if( sig == SIGINT ) { | ||
72 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
73 | shmdt( shminfo->shmaddr ); | ||
74 | shmctl( shminfo->shmid, IPC_RMID, 0); | ||
75 | #endif | ||
76 | fputs( "Exit\n", stderr); | ||
77 | exit( 0 ); | ||
78 | } | ||
79 | if( sig == SIGALRM ) { | ||
80 | if( !Movie_checkframe( ) ) { | ||
81 | Vector_paint(); | ||
82 | redraw(); | ||
83 | } | ||
84 | } | ||
85 | } | ||
86 | |||
87 | /*** main() ***/ | ||
88 | int main(int argc, char **argv) { | ||
89 | |||
90 | char x11_keychar; /* gedrueckte taste */ | ||
91 | KeySym key; /* metadaten beim tastendruecken */ | ||
92 | int shallredraw = 0; | ||
93 | Cursor curs; | ||
94 | struct itimerval ticks; | ||
95 | |||
96 | signal( SIGINT, handle_signal ); | ||
97 | signal( SIGALRM, handle_signal ); | ||
98 | |||
99 | Vector_init( 8, 300); | ||
100 | |||
101 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
102 | shminfo = malloc( sizeof( shminfo )); | ||
103 | #endif | ||
104 | |||
105 | if( (dpy = XOpenDisplay(NIL)) == NULL ) { | ||
106 | fputs( "Can't XOpenDisplay\n", stderr ); | ||
107 | exit( 0 ); | ||
108 | } | ||
109 | |||
110 | win = XCreateSimpleWindow(dpy, DefaultRootWindow(dpy), 0, 0, width, height, 0, blackColor, blackColor); | ||
111 | |||
112 | /*** We want to get MapNotify events ***/ | ||
113 | XSelectInput(dpy, win, StructureNotifyMask); | ||
114 | |||
115 | /*** "Map" the window (that is, make it appear on the screen) ***/ | ||
116 | XMapWindow(dpy, win); | ||
117 | |||
118 | /*** Create a "Graphics Context" ***/ | ||
119 | gc = XCreateGC(dpy, win, 0, NIL); | ||
120 | |||
121 | /*** Wait for the MapNotify event ***/ | ||
122 | for(;;) { | ||
123 | XNextEvent(dpy, &e); | ||
124 | if (e.type == MapNotify) | ||
125 | break; | ||
126 | } | ||
127 | |||
128 | curs = XCreateFontCursor(dpy, 39); | ||
129 | XDefineCursor( dpy, win, curs ); | ||
130 | |||
131 | switch ( mydepth = DefaultDepth(dpy, DefaultScreen(dpy)) ) { | ||
132 | case 24: | ||
133 | case 32: | ||
134 | break; | ||
135 | default: | ||
136 | fputs( "Screen Resolution Aua\n", stderr ); | ||
137 | exit( 0 ); | ||
138 | break; | ||
139 | } | ||
140 | |||
141 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
142 | { | ||
143 | int major, minor; | ||
144 | Bool pixmaps; | ||
145 | |||
146 | if( XShmQueryVersion( dpy, &major, &minor, &pixmaps) && pixmaps ) { | ||
147 | UsingSharedMemoryPixmaps = 1; | ||
148 | if((image = XShmCreateImage( dpy, CopyFromParent, DefaultDepth(dpy, DefaultScreen(dpy)), ZPixmap, NULL, shminfo, width, height )) == NULL ) { | ||
149 | fputs( "Can't XShmCreateImage\n", stderr ); | ||
150 | exit( 0 ); | ||
151 | } | ||
152 | shminfo->shmid = shmget( IPC_PRIVATE, image->bytes_per_line * image->height, IPC_CREAT | 0777 ); | ||
153 | shminfo->shmaddr = offscreen = image->data = shmat( shminfo->shmid, 0, 0); | ||
154 | shminfo->readOnly= 0; | ||
155 | if( XShmAttach( dpy, shminfo ) == NULL ) { | ||
156 | fputs( "Can't XShmAttach\n", stderr ); | ||
157 | exit( 0 ); | ||
158 | } | ||
159 | } else { | ||
160 | #endif | ||
161 | if( ( image = XCreateImage( dpy, CopyFromParent, DefaultDepth(dpy, DefaultScreen(dpy)), ZPixmap, 0, offscreen, width, height, 32, 0 ) ) == NULL ) { | ||
162 | fputs( "Can't XCreateImage\n", stderr ); | ||
163 | exit( 0 ); | ||
164 | } | ||
165 | |||
166 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
167 | } | ||
168 | } | ||
169 | #endif | ||
170 | |||
171 | Gfx_init(offscreen, width, height); | ||
172 | Vector_paint(); | ||
173 | |||
174 | /*** draw application***/ | ||
175 | redraw(); | ||
176 | /*** select events ***/ | ||
177 | XSelectInput(dpy, win, EVENT_MASK); | ||
178 | |||
179 | ticks.it_value.tv_sec = 0; | ||
180 | ticks.it_value.tv_usec = 1000 * 40; | ||
181 | ticks.it_interval.tv_sec = 0; | ||
182 | ticks.it_interval.tv_usec = 1000 * 40; | ||
183 | |||
184 | setitimer( ITIMER_REAL, &ticks, (struct itimerval*)0); | ||
185 | |||
186 | while(1) { | ||
187 | XNextEvent(dpy, &e); | ||
188 | |||
189 | switch(e.type) { | ||
190 | case ConfigureNotify: | ||
191 | /* fprintf(stderr, "window resized\n"); */ | ||
192 | break; | ||
193 | case Expose: | ||
194 | if(e.xexpose.count == 0) { | ||
195 | redraw(); | ||
196 | } | ||
197 | break; | ||
198 | |||
199 | case MotionNotify: | ||
200 | Vector_move( startx - ((XButtonEvent*)&e)->x, starty - ((XButtonEvent*)&e)->y ); | ||
201 | shallredraw = 1; | ||
202 | /* Fall through */ | ||
203 | case ButtonPress: | ||
204 | startx = ((XButtonEvent*)&e)->x; | ||
205 | starty = ((XButtonEvent*)&e)->y; | ||
206 | break; | ||
207 | |||
208 | case KeyPress: | ||
209 | /* fprintf(stderr, "got keypress-event\n"); */ | ||
210 | /*** klarheit verschaffen ***/ | ||
211 | XLookupString((XKeyEvent *)&e, &x11_keychar, 1, &key, NULL); | ||
212 | |||
213 | switch((int)key) { | ||
214 | case 'q': | ||
215 | Vector_angle( -0.01, 0, 0); | ||
216 | shallredraw = 1; | ||
217 | break; | ||
218 | case 'w': | ||
219 | Vector_angle( +0.01, 0, 0); | ||
220 | shallredraw = 1; | ||
221 | break; | ||
222 | case 'a': | ||
223 | Vector_angle( 0, -0.01, 0); | ||
224 | shallredraw = 1; | ||
225 | break; | ||
226 | case 's': | ||
227 | Vector_angle( 0, +0.01, 0); | ||
228 | shallredraw = 1; | ||
229 | break; | ||
230 | case 'y': | ||
231 | Vector_angle( 0, 0, -0.01); | ||
232 | shallredraw = 1; | ||
233 | break; | ||
234 | case 'x': | ||
235 | Vector_angle( 0, 0, +0.01); | ||
236 | shallredraw = 1; | ||
237 | break; | ||
238 | case 'c': | ||
239 | Vector_reset( ); | ||
240 | shallredraw = 1; | ||
241 | break; | ||
242 | default: | ||
243 | break; | ||
244 | } | ||
245 | |||
246 | default: | ||
247 | printf( "Uncatched event!" ); | ||
248 | break; | ||
249 | } | ||
250 | if( shallredraw == 1 ) { | ||
251 | Vector_paint(); | ||
252 | redraw(); | ||
253 | shallredraw = 0; | ||
254 | } | ||
255 | } | ||
256 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
257 | XShmDetach( dpy, shminfo); | ||
258 | #endif | ||
259 | XDestroyImage( image ); | ||
260 | #ifdef ENABLE_X11_SHARED_MEMORY_PIXMAPS | ||
261 | shmdt( shminfo->shmaddr ); | ||
262 | shmctl( shminfo->shmid, IPC_RMID, 0); | ||
263 | #endif | ||
264 | } | ||