1 9142d362 2008-06-30 rsc /*
  2 9142d362 2008-06-30 rsc  * Window system protocol server.
  3 9142d362 2008-06-30 rsc  */
  4 9142d362 2008-06-30 rsc 
  5 9142d362 2008-06-30 rsc #include <u.h>
  6 9142d362 2008-06-30 rsc #include <errno.h>
  7 9142d362 2008-06-30 rsc #include <sys/select.h>
  8 9142d362 2008-06-30 rsc #include <libc.h>
  9 9142d362 2008-06-30 rsc #include <thread.h>
 10 9142d362 2008-06-30 rsc #include <draw.h>
 11 9142d362 2008-06-30 rsc #include <memdraw.h>
 12 9142d362 2008-06-30 rsc #include <memlayer.h>
 13 9142d362 2008-06-30 rsc #include <keyboard.h>
 14 9142d362 2008-06-30 rsc #include <mouse.h>
 15 9142d362 2008-06-30 rsc #include <cursor.h>
 16 9142d362 2008-06-30 rsc #include <drawfcall.h>
 17 9142d362 2008-06-30 rsc #include "osx-screen.h"
 18 9142d362 2008-06-30 rsc #include "devdraw.h"
 19 9142d362 2008-06-30 rsc 
 20 9142d362 2008-06-30 rsc #undef time
 21 9142d362 2008-06-30 rsc 
 22 9142d362 2008-06-30 rsc #define MouseMask (\
 23 9142d362 2008-06-30 rsc 	ButtonPressMask|\
 24 9142d362 2008-06-30 rsc 	ButtonReleaseMask|\
 25 9142d362 2008-06-30 rsc 	PointerMotionMask|\
 26 9142d362 2008-06-30 rsc 	Button1MotionMask|\
 27 9142d362 2008-06-30 rsc 	Button2MotionMask|\
 28 9142d362 2008-06-30 rsc 	Button3MotionMask)
 29 9142d362 2008-06-30 rsc 
 30 9142d362 2008-06-30 rsc #define Mask MouseMask|ExposureMask|StructureNotifyMask|KeyPressMask|EnterWindowMask|LeaveWindowMask
 31 9142d362 2008-06-30 rsc 
 32 9142d362 2008-06-30 rsc typedef struct Kbdbuf Kbdbuf;
 33 9142d362 2008-06-30 rsc typedef struct Mousebuf Mousebuf;
 34 9142d362 2008-06-30 rsc typedef struct Fdbuf Fdbuf;
 35 9142d362 2008-06-30 rsc typedef struct Tagbuf Tagbuf;
 36 9142d362 2008-06-30 rsc 
 37 9142d362 2008-06-30 rsc struct Kbdbuf
 38 9142d362 2008-06-30 rsc {
 39 9142d362 2008-06-30 rsc 	Rune r[32];
 40 9142d362 2008-06-30 rsc 	int ri;
 41 9142d362 2008-06-30 rsc 	int wi;
 42 9142d362 2008-06-30 rsc 	int stall;
 43 9142d362 2008-06-30 rsc };
 44 9142d362 2008-06-30 rsc 
 45 9142d362 2008-06-30 rsc struct Mousebuf
 46 9142d362 2008-06-30 rsc {
 47 9142d362 2008-06-30 rsc 	Mouse m[32];
 48 1f74e1b7 2008-07-10 rsc 	Mouse last;
 49 9142d362 2008-06-30 rsc 	int ri;
 50 9142d362 2008-06-30 rsc 	int wi;
 51 9142d362 2008-06-30 rsc 	int stall;
 52 9142d362 2008-06-30 rsc };
 53 9142d362 2008-06-30 rsc 
 54 9142d362 2008-06-30 rsc struct Tagbuf
 55 9142d362 2008-06-30 rsc {
 56 9142d362 2008-06-30 rsc 	int t[32];
 57 9142d362 2008-06-30 rsc 	int ri;
 58 9142d362 2008-06-30 rsc 	int wi;
 59 9142d362 2008-06-30 rsc };
 60 9142d362 2008-06-30 rsc 
 61 9142d362 2008-06-30 rsc Kbdbuf kbd;
 62 9142d362 2008-06-30 rsc Mousebuf mouse;
 63 9142d362 2008-06-30 rsc Tagbuf kbdtags;
 64 9142d362 2008-06-30 rsc Tagbuf mousetags;
 65 9142d362 2008-06-30 rsc 
 66 9142d362 2008-06-30 rsc void fdslide(Fdbuf*);
 67 9142d362 2008-06-30 rsc void runmsg(Wsysmsg*);
 68 9142d362 2008-06-30 rsc void replymsg(Wsysmsg*);
 69 9142d362 2008-06-30 rsc void matchkbd(void);
 70 9142d362 2008-06-30 rsc void matchmouse(void);
 71 9142d362 2008-06-30 rsc int fdnoblock(int);
 72 9142d362 2008-06-30 rsc Rectangle mouserect;
 73 9142d362 2008-06-30 rsc int mouseresized;
 74 9142d362 2008-06-30 rsc 
 75 9142d362 2008-06-30 rsc 
 76 9142d362 2008-06-30 rsc QLock lk;
 77 9142d362 2008-06-30 rsc void
 78 9142d362 2008-06-30 rsc zlock(void)
 79 9142d362 2008-06-30 rsc {
 80 9142d362 2008-06-30 rsc 	qlock(&lk);
 81 9142d362 2008-06-30 rsc }
 82 9142d362 2008-06-30 rsc 
 83 9142d362 2008-06-30 rsc void
 84 9142d362 2008-06-30 rsc zunlock(void)
 85 9142d362 2008-06-30 rsc {
 86 9142d362 2008-06-30 rsc 	qunlock(&lk);
 87 9142d362 2008-06-30 rsc }
 88 9142d362 2008-06-30 rsc 
 89 9142d362 2008-06-30 rsc int chatty;
 90 9142d362 2008-06-30 rsc int drawsleep;
 91 9142d362 2008-06-30 rsc int trace;
 92 100ec44e 2010-01-04 rsc int multitouch = 1;
 93 9142d362 2008-06-30 rsc 
 94 9142d362 2008-06-30 rsc void
 95 9142d362 2008-06-30 rsc usage(void)
 96 9142d362 2008-06-30 rsc {
 97 9142d362 2008-06-30 rsc 	fprint(2, "usage: devdraw (don't run directly)\n");
 98 9142d362 2008-06-30 rsc 	threadexitsall("usage");
 99 9142d362 2008-06-30 rsc }
100 9142d362 2008-06-30 rsc 
101 9142d362 2008-06-30 rsc void
102 9142d362 2008-06-30 rsc bell(void *v, char *msg)
103 9142d362 2008-06-30 rsc {
104 9142d362 2008-06-30 rsc 	if(strcmp(msg, "alarm") == 0)
105 9142d362 2008-06-30 rsc 		drawsleep = drawsleep ? 0 : 1000;
106 9142d362 2008-06-30 rsc 	noted(NCONT);
107 9142d362 2008-06-30 rsc }
108 9142d362 2008-06-30 rsc 
109 9142d362 2008-06-30 rsc void
110 9142d362 2008-06-30 rsc threadmain(int argc, char **argv)
111 9142d362 2008-06-30 rsc {
112 9142d362 2008-06-30 rsc 	uchar buf[4], *mbuf;
113 9142d362 2008-06-30 rsc 	int nmbuf, n, nn;
114 9142d362 2008-06-30 rsc 	Wsysmsg m;
115 9142d362 2008-06-30 rsc 
116 9142d362 2008-06-30 rsc 	/*
117 9142d362 2008-06-30 rsc 	 * Move the protocol off stdin/stdout so that
118 9142d362 2008-06-30 rsc 	 * any inadvertent prints don't screw things up.
119 9142d362 2008-06-30 rsc 	 */
120 9142d362 2008-06-30 rsc 	dup(0, 3);
121 9142d362 2008-06-30 rsc 	dup(1, 4);
122 9142d362 2008-06-30 rsc 	close(0);
123 9142d362 2008-06-30 rsc 	close(1);
124 9142d362 2008-06-30 rsc 	open("/dev/null", OREAD);
125 9142d362 2008-06-30 rsc 	open("/dev/null", OWRITE);
126 9142d362 2008-06-30 rsc 
127 9142d362 2008-06-30 rsc //trace = 1;
128 9142d362 2008-06-30 rsc 	fmtinstall('W', drawfcallfmt);
129 9142d362 2008-06-30 rsc 
130 9142d362 2008-06-30 rsc 	ARGBEGIN{
131 9142d362 2008-06-30 rsc 	case 'D':
132 9142d362 2008-06-30 rsc 		chatty++;
133 100ec44e 2010-01-04 rsc 		break;
134 100ec44e 2010-01-04 rsc 	case 'M':
135 100ec44e 2010-01-04 rsc 		multitouch = 0;
136 9142d362 2008-06-30 rsc 		break;
137 9142d362 2008-06-30 rsc 	default:
138 9142d362 2008-06-30 rsc 		usage();
139 9142d362 2008-06-30 rsc 	}ARGEND
140 9142d362 2008-06-30 rsc 
141 9142d362 2008-06-30 rsc 	/*
142 9142d362 2008-06-30 rsc 	 * Ignore arguments.  They're only for good ps -a listings.
143 9142d362 2008-06-30 rsc 	 */
144 9142d362 2008-06-30 rsc 	
145 9142d362 2008-06-30 rsc 	notify(bell);
146 9142d362 2008-06-30 rsc 
147 9142d362 2008-06-30 rsc 	mbuf = nil;
148 9142d362 2008-06-30 rsc 	nmbuf = 0;
149 9142d362 2008-06-30 rsc 	while((n = read(3, buf, 4)) == 4){
150 9142d362 2008-06-30 rsc 		GET(buf, n);
151 9142d362 2008-06-30 rsc 		if(n > nmbuf){
152 9142d362 2008-06-30 rsc 			free(mbuf);
153 9142d362 2008-06-30 rsc 			mbuf = malloc(4+n);
154 9142d362 2008-06-30 rsc 			if(mbuf == nil)
155 9142d362 2008-06-30 rsc 				sysfatal("malloc: %r");
156 9142d362 2008-06-30 rsc 			nmbuf = n;
157 9142d362 2008-06-30 rsc 		}
158 9142d362 2008-06-30 rsc 		memmove(mbuf, buf, 4);
159 9142d362 2008-06-30 rsc 		nn = readn(3, mbuf+4, n-4);
160 9142d362 2008-06-30 rsc 		if(nn != n-4)
161 9142d362 2008-06-30 rsc 			sysfatal("eof during message");
162 9142d362 2008-06-30 rsc 
163 9142d362 2008-06-30 rsc 		/* pick off messages one by one */
164 9142d362 2008-06-30 rsc 		if(convM2W(mbuf, nn+4, &m) <= 0)
165 9142d362 2008-06-30 rsc 			sysfatal("cannot convert message");
166 9142d362 2008-06-30 rsc 		if(trace) fprint(2, "<- %W\n", &m);
167 9142d362 2008-06-30 rsc 		runmsg(&m);
168 9142d362 2008-06-30 rsc 	}
169 9142d362 2008-06-30 rsc 	threadexitsall(0);
170 9142d362 2008-06-30 rsc }
171 9142d362 2008-06-30 rsc 
172 9142d362 2008-06-30 rsc void
173 9142d362 2008-06-30 rsc replyerror(Wsysmsg *m)
174 9142d362 2008-06-30 rsc {
175 9142d362 2008-06-30 rsc 	char err[256];
176 9142d362 2008-06-30 rsc 	
177 9142d362 2008-06-30 rsc 	rerrstr(err, sizeof err);
178 9142d362 2008-06-30 rsc 	m->type = Rerror;
179 9142d362 2008-06-30 rsc 	m->error = err;
180 9142d362 2008-06-30 rsc 	replymsg(m);
181 9142d362 2008-06-30 rsc }
182 9142d362 2008-06-30 rsc 
183 9142d362 2008-06-30 rsc /* 
184 9142d362 2008-06-30 rsc  * Handle a single wsysmsg. 
185 9142d362 2008-06-30 rsc  * Might queue for later (kbd, mouse read)
186 9142d362 2008-06-30 rsc  */
187 9142d362 2008-06-30 rsc void
188 9142d362 2008-06-30 rsc runmsg(Wsysmsg *m)
189 9142d362 2008-06-30 rsc {
190 9142d362 2008-06-30 rsc 	static uchar buf[65536];
191 9142d362 2008-06-30 rsc 	int n;
192 9142d362 2008-06-30 rsc 	Memimage *i;
193 9142d362 2008-06-30 rsc 	
194 9142d362 2008-06-30 rsc 	switch(m->type){
195 9142d362 2008-06-30 rsc 	case Tinit:
196 9142d362 2008-06-30 rsc 		memimageinit();
197 9142d362 2008-06-30 rsc 		i = attachscreen(m->label, m->winsize);
198 9142d362 2008-06-30 rsc 		_initdisplaymemimage(i);
199 9142d362 2008-06-30 rsc 		replymsg(m);
200 9142d362 2008-06-30 rsc 		break;
201 9142d362 2008-06-30 rsc 
202 9142d362 2008-06-30 rsc 	case Trdmouse:
203 9142d362 2008-06-30 rsc 		zlock();
204 9142d362 2008-06-30 rsc 		mousetags.t[mousetags.wi++] = m->tag;
205 9142d362 2008-06-30 rsc 		if(mousetags.wi == nelem(mousetags.t))
206 9142d362 2008-06-30 rsc 			mousetags.wi = 0;
207 9142d362 2008-06-30 rsc 		if(mousetags.wi == mousetags.ri)
208 9142d362 2008-06-30 rsc 			sysfatal("too many queued mouse reads");
209 9142d362 2008-06-30 rsc 		mouse.stall = 0;
210 9142d362 2008-06-30 rsc 		matchmouse();
211 9142d362 2008-06-30 rsc 		zunlock();
212 9142d362 2008-06-30 rsc 		break;
213 9142d362 2008-06-30 rsc 
214 9142d362 2008-06-30 rsc 	case Trdkbd:
215 9142d362 2008-06-30 rsc 		zlock();
216 9142d362 2008-06-30 rsc 		kbdtags.t[kbdtags.wi++] = m->tag;
217 9142d362 2008-06-30 rsc 		if(kbdtags.wi == nelem(kbdtags.t))
218 9142d362 2008-06-30 rsc 			kbdtags.wi = 0;
219 9142d362 2008-06-30 rsc 		if(kbdtags.wi == kbdtags.ri)
220 9142d362 2008-06-30 rsc 			sysfatal("too many queued keyboard reads");
221 9142d362 2008-06-30 rsc 		kbd.stall = 0;
222 9142d362 2008-06-30 rsc 		matchkbd();
223 9142d362 2008-06-30 rsc 		zunlock();
224 9142d362 2008-06-30 rsc 		break;
225 9142d362 2008-06-30 rsc 
226 9142d362 2008-06-30 rsc 	case Tmoveto:
227 9142d362 2008-06-30 rsc 		setmouse(m->mouse.xy);
228 9142d362 2008-06-30 rsc 		replymsg(m);
229 9142d362 2008-06-30 rsc 		break;
230 9142d362 2008-06-30 rsc 
231 9142d362 2008-06-30 rsc 	case Tcursor:
232 9142d362 2008-06-30 rsc 		if(m->arrowcursor)
233 9142d362 2008-06-30 rsc 			setcursor(nil);
234 9142d362 2008-06-30 rsc 		else
235 9142d362 2008-06-30 rsc 			setcursor(&m->cursor);
236 9142d362 2008-06-30 rsc 		replymsg(m);
237 9142d362 2008-06-30 rsc 		break;
238 9142d362 2008-06-30 rsc 			
239 9142d362 2008-06-30 rsc 	case Tbouncemouse:
240 9142d362 2008-06-30 rsc 	//	_xbouncemouse(&m->mouse);
241 9142d362 2008-06-30 rsc 		replymsg(m);
242 9142d362 2008-06-30 rsc 		break;
243 9142d362 2008-06-30 rsc 
244 9142d362 2008-06-30 rsc 	case Tlabel:
245 4a34106c 2009-06-16 rsc 		kicklabel(m->label);
246 9142d362 2008-06-30 rsc 		replymsg(m);
247 9142d362 2008-06-30 rsc 		break;
248 9142d362 2008-06-30 rsc 
249 9142d362 2008-06-30 rsc 	case Trdsnarf:
250 9142d362 2008-06-30 rsc 		m->snarf = getsnarf();
251 9142d362 2008-06-30 rsc 		replymsg(m);
252 9142d362 2008-06-30 rsc 		free(m->snarf);
253 9142d362 2008-06-30 rsc 		break;
254 9142d362 2008-06-30 rsc 
255 9142d362 2008-06-30 rsc 	case Twrsnarf:
256 9142d362 2008-06-30 rsc 		putsnarf(m->snarf);
257 9142d362 2008-06-30 rsc 		replymsg(m);
258 9142d362 2008-06-30 rsc 		break;
259 9142d362 2008-06-30 rsc 
260 9142d362 2008-06-30 rsc 	case Trddraw:
261 9142d362 2008-06-30 rsc 		n = m->count;
262 9142d362 2008-06-30 rsc 		if(n > sizeof buf)
263 9142d362 2008-06-30 rsc 			n = sizeof buf;
264 9142d362 2008-06-30 rsc 		n = _drawmsgread(buf, n);
265 9142d362 2008-06-30 rsc 		if(n < 0)
266 9142d362 2008-06-30 rsc 			replyerror(m);
267 9142d362 2008-06-30 rsc 		else{
268 9142d362 2008-06-30 rsc 			m->count = n;
269 9142d362 2008-06-30 rsc 			m->data = buf;
270 9142d362 2008-06-30 rsc 			replymsg(m);
271 9142d362 2008-06-30 rsc 		}
272 9142d362 2008-06-30 rsc 		break;
273 9142d362 2008-06-30 rsc 
274 9142d362 2008-06-30 rsc 	case Twrdraw:
275 9142d362 2008-06-30 rsc 		if(_drawmsgwrite(m->data, m->count) < 0)
276 9142d362 2008-06-30 rsc 			replyerror(m);
277 9142d362 2008-06-30 rsc 		else
278 9142d362 2008-06-30 rsc 			replymsg(m);
279 9142d362 2008-06-30 rsc 		break;
280 9142d362 2008-06-30 rsc 	
281 9142d362 2008-06-30 rsc 	case Ttop:
282 9142d362 2008-06-30 rsc 	//	_xtopwindow();
283 9142d362 2008-06-30 rsc 		replymsg(m);
284 9142d362 2008-06-30 rsc 		break;
285 9142d362 2008-06-30 rsc 	
286 9142d362 2008-06-30 rsc 	case Tresize:
287 9142d362 2008-06-30 rsc 	//	_xresizewindow(m->rect);
288 9142d362 2008-06-30 rsc 		replymsg(m);
289 9142d362 2008-06-30 rsc 		break;
290 9142d362 2008-06-30 rsc 	}
291 9142d362 2008-06-30 rsc }
292 9142d362 2008-06-30 rsc 
293 9142d362 2008-06-30 rsc /*
294 9142d362 2008-06-30 rsc  * Reply to m.
295 9142d362 2008-06-30 rsc  */
296 607880ce 2008-10-08 rsc QLock replylock;
297 9142d362 2008-06-30 rsc void
298 9142d362 2008-06-30 rsc replymsg(Wsysmsg *m)
299 9142d362 2008-06-30 rsc {
300 9142d362 2008-06-30 rsc 	int n;
301 9142d362 2008-06-30 rsc 	static uchar *mbuf;
302 9142d362 2008-06-30 rsc 	static int nmbuf;
303 9142d362 2008-06-30 rsc 
304 9142d362 2008-06-30 rsc 	/* T -> R msg */
305 9142d362 2008-06-30 rsc 	if(m->type%2 == 0)
306 9142d362 2008-06-30 rsc 		m->type++;
307 9142d362 2008-06-30 rsc 		
308 9142d362 2008-06-30 rsc 	if(trace) fprint(2, "-> %W\n", m);
309 9142d362 2008-06-30 rsc 	/* copy to output buffer */
310 9142d362 2008-06-30 rsc 	n = sizeW2M(m);
311 607880ce 2008-10-08 rsc 
312 607880ce 2008-10-08 rsc 	qlock(&replylock);
313 9142d362 2008-06-30 rsc 	if(n > nmbuf){
314 9142d362 2008-06-30 rsc 		free(mbuf);
315 9142d362 2008-06-30 rsc 		mbuf = malloc(n);
316 9142d362 2008-06-30 rsc 		if(mbuf == nil)
317 9142d362 2008-06-30 rsc 			sysfatal("out of memory");
318 9142d362 2008-06-30 rsc 		nmbuf = n;
319 9142d362 2008-06-30 rsc 	}
320 9142d362 2008-06-30 rsc 	convW2M(m, mbuf, n);
321 962d5a8b 2008-07-04 rsc 	if(write(4, mbuf, n) != n)
322 962d5a8b 2008-07-04 rsc 		sysfatal("write: %r");
323 607880ce 2008-10-08 rsc 	qunlock(&replylock);
324 9142d362 2008-06-30 rsc }
325 9142d362 2008-06-30 rsc 
326 9142d362 2008-06-30 rsc /*
327 9142d362 2008-06-30 rsc  * Match queued kbd reads with queued kbd characters.
328 9142d362 2008-06-30 rsc  */
329 9142d362 2008-06-30 rsc void
330 9142d362 2008-06-30 rsc matchkbd(void)
331 9142d362 2008-06-30 rsc {
332 9142d362 2008-06-30 rsc 	Wsysmsg m;
333 9142d362 2008-06-30 rsc 	
334 9142d362 2008-06-30 rsc 	if(kbd.stall)
335 9142d362 2008-06-30 rsc 		return;
336 9142d362 2008-06-30 rsc 	while(kbd.ri != kbd.wi && kbdtags.ri != kbdtags.wi){
337 9142d362 2008-06-30 rsc 		m.type = Rrdkbd;
338 9142d362 2008-06-30 rsc 		m.tag = kbdtags.t[kbdtags.ri++];
339 9142d362 2008-06-30 rsc 		if(kbdtags.ri == nelem(kbdtags.t))
340 9142d362 2008-06-30 rsc 			kbdtags.ri = 0;
341 9142d362 2008-06-30 rsc 		m.rune = kbd.r[kbd.ri++];
342 9142d362 2008-06-30 rsc 		if(kbd.ri == nelem(kbd.r))
343 9142d362 2008-06-30 rsc 			kbd.ri = 0;
344 9142d362 2008-06-30 rsc 		replymsg(&m);
345 9142d362 2008-06-30 rsc 	}
346 9142d362 2008-06-30 rsc }
347 9142d362 2008-06-30 rsc 
348 9142d362 2008-06-30 rsc /*
349 9142d362 2008-06-30 rsc  * Match queued mouse reads with queued mouse events.
350 9142d362 2008-06-30 rsc  */
351 9142d362 2008-06-30 rsc void
352 9142d362 2008-06-30 rsc matchmouse(void)
353 9142d362 2008-06-30 rsc {
354 9142d362 2008-06-30 rsc 	Wsysmsg m;
355 9142d362 2008-06-30 rsc 	
356 9142d362 2008-06-30 rsc 	while(mouse.ri != mouse.wi && mousetags.ri != mousetags.wi){
357 9142d362 2008-06-30 rsc 		m.type = Rrdmouse;
358 9142d362 2008-06-30 rsc 		m.tag = mousetags.t[mousetags.ri++];
359 9142d362 2008-06-30 rsc 		if(mousetags.ri == nelem(mousetags.t))
360 9142d362 2008-06-30 rsc 			mousetags.ri = 0;
361 9142d362 2008-06-30 rsc 		m.mouse = mouse.m[mouse.ri];
362 9142d362 2008-06-30 rsc 		m.resized = mouseresized;
363 9142d362 2008-06-30 rsc 		/*
364 9142d362 2008-06-30 rsc 		if(m.resized)
365 9142d362 2008-06-30 rsc 			fprint(2, "sending resize\n");
366 9142d362 2008-06-30 rsc 		*/
367 9142d362 2008-06-30 rsc 		mouseresized = 0;
368 9142d362 2008-06-30 rsc 		mouse.ri++;
369 9142d362 2008-06-30 rsc 		if(mouse.ri == nelem(mouse.m))
370 9142d362 2008-06-30 rsc 			mouse.ri = 0;
371 9142d362 2008-06-30 rsc 		replymsg(&m);
372 9142d362 2008-06-30 rsc 	}
373 9142d362 2008-06-30 rsc }
374 9142d362 2008-06-30 rsc 
375 9142d362 2008-06-30 rsc void
376 9142d362 2008-06-30 rsc mousetrack(int x, int y, int b, int ms)
377 9142d362 2008-06-30 rsc {
378 9142d362 2008-06-30 rsc 	Mouse *m;
379 9142d362 2008-06-30 rsc 	
380 9142d362 2008-06-30 rsc 	if(x < mouserect.min.x)
381 9142d362 2008-06-30 rsc 		x = mouserect.min.x;
382 9142d362 2008-06-30 rsc 	if(x > mouserect.max.x)
383 9142d362 2008-06-30 rsc 		x = mouserect.max.x;
384 9142d362 2008-06-30 rsc 	if(y < mouserect.min.y)
385 9142d362 2008-06-30 rsc 		y = mouserect.min.y;
386 9142d362 2008-06-30 rsc 	if(y > mouserect.max.y)
387 9142d362 2008-06-30 rsc 		y = mouserect.max.y;
388 9142d362 2008-06-30 rsc 
389 9142d362 2008-06-30 rsc 	zlock();
390 1f74e1b7 2008-07-10 rsc 	// If reader has stopped reading, don't bother.
391 1f74e1b7 2008-07-10 rsc 	// If reader is completely caught up, definitely queue.
392 1f74e1b7 2008-07-10 rsc 	// Otherwise, queue only button change events.
393 1f74e1b7 2008-07-10 rsc 	if(!mouse.stall)
394 1f74e1b7 2008-07-10 rsc 	if(mouse.wi == mouse.ri || mouse.last.buttons != b){
395 1f74e1b7 2008-07-10 rsc 		m = &mouse.last;
396 1f74e1b7 2008-07-10 rsc 		m->xy.x = x;
397 1f74e1b7 2008-07-10 rsc 		m->xy.y = y;
398 1f74e1b7 2008-07-10 rsc 		m->buttons = b;
399 1f74e1b7 2008-07-10 rsc 		m->msec = ms;
400 1f74e1b7 2008-07-10 rsc 
401 1f74e1b7 2008-07-10 rsc 		mouse.m[mouse.wi] = *m;
402 1f74e1b7 2008-07-10 rsc 		if(++mouse.wi == nelem(mouse.m))
403 1f74e1b7 2008-07-10 rsc 			mouse.wi = 0;
404 1f74e1b7 2008-07-10 rsc 		if(mouse.wi == mouse.ri){
405 1f74e1b7 2008-07-10 rsc 			mouse.stall = 1;
406 1f74e1b7 2008-07-10 rsc 			mouse.ri = 0;
407 1f74e1b7 2008-07-10 rsc 			mouse.wi = 1;
408 1f74e1b7 2008-07-10 rsc 			mouse.m[0] = *m;
409 1f74e1b7 2008-07-10 rsc 		}
410 1f74e1b7 2008-07-10 rsc 		matchmouse();
411 9142d362 2008-06-30 rsc 	}
412 9142d362 2008-06-30 rsc 	zunlock();
413 9142d362 2008-06-30 rsc }
414 81a90f89 2008-07-02 rsc 
415 9142d362 2008-06-30 rsc void
416 81a90f89 2008-07-02 rsc kputc(int c)
417 9142d362 2008-06-30 rsc {
418 9142d362 2008-06-30 rsc 	zlock();
419 9142d362 2008-06-30 rsc 	kbd.r[kbd.wi++] = c;
420 9142d362 2008-06-30 rsc 	if(kbd.wi == nelem(kbd.r))
421 9142d362 2008-06-30 rsc 		kbd.wi = 0;
422 9142d362 2008-06-30 rsc 	if(kbd.ri == kbd.wi)
423 9142d362 2008-06-30 rsc 		kbd.stall = 1;
424 9142d362 2008-06-30 rsc 	matchkbd();
425 9142d362 2008-06-30 rsc 	zunlock();
426 81a90f89 2008-07-02 rsc }
427 81a90f89 2008-07-02 rsc 
428 81a90f89 2008-07-02 rsc void
429 81a90f89 2008-07-02 rsc keystroke(int c)
430 81a90f89 2008-07-02 rsc {
431 81a90f89 2008-07-02 rsc 	static Rune k[10];
432 81a90f89 2008-07-02 rsc 	static int alting, nk;
433 81a90f89 2008-07-02 rsc 	int i;
434 81a90f89 2008-07-02 rsc 
435 81a90f89 2008-07-02 rsc 	if(c == Kalt){
436 81a90f89 2008-07-02 rsc 		alting = !alting;
437 81a90f89 2008-07-02 rsc 		return;
438 81a90f89 2008-07-02 rsc 	}
439 81a90f89 2008-07-02 rsc 	if(!alting){
440 81a90f89 2008-07-02 rsc 		kputc(c);
441 81a90f89 2008-07-02 rsc 		return;
442 81a90f89 2008-07-02 rsc 	}
443 81a90f89 2008-07-02 rsc 	if(nk >= nelem(k))      // should not happen
444 81a90f89 2008-07-02 rsc 		nk = 0;
445 81a90f89 2008-07-02 rsc 	k[nk++] = c;
446 81a90f89 2008-07-02 rsc 	c = _latin1(k, nk);
447 81a90f89 2008-07-02 rsc 	if(c > 0){
448 81a90f89 2008-07-02 rsc 		alting = 0;
449 81a90f89 2008-07-02 rsc 		kputc(c);
450 81a90f89 2008-07-02 rsc 		nk = 0;
451 81a90f89 2008-07-02 rsc 		return;
452 81a90f89 2008-07-02 rsc 	}
453 81a90f89 2008-07-02 rsc 	if(c == -1){
454 81a90f89 2008-07-02 rsc 		alting = 0;
455 81a90f89 2008-07-02 rsc 		for(i=0; i<nk; i++)
456 81a90f89 2008-07-02 rsc 			kputc(k[i]);
457 81a90f89 2008-07-02 rsc 		nk = 0;
458 81a90f89 2008-07-02 rsc 		return;
459 81a90f89 2008-07-02 rsc 	}
460 81a90f89 2008-07-02 rsc 	// need more input
461 81a90f89 2008-07-02 rsc 	return;
462 9142d362 2008-06-30 rsc }