1 76193d7c 2003-09-30 devnull /*
  2 76193d7c 2003-09-30 devnull  * Some of the stuff in this file is not X-dependent and should be elsewhere.
  3 76193d7c 2003-09-30 devnull  */
  4 76193d7c 2003-09-30 devnull #include "x11-inc.h"
  5 76193d7c 2003-09-30 devnull #include <u.h>
  6 76193d7c 2003-09-30 devnull #include <libc.h>
  7 76193d7c 2003-09-30 devnull #include <draw.h>
  8 76193d7c 2003-09-30 devnull #include <memdraw.h>
  9 76193d7c 2003-09-30 devnull #include <keyboard.h>
 10 76193d7c 2003-09-30 devnull #include <mouse.h>
 11 76193d7c 2003-09-30 devnull #include <cursor.h>
 12 76193d7c 2003-09-30 devnull #include "x11-memdraw.h"
 13 76193d7c 2003-09-30 devnull 
 14 76193d7c 2003-09-30 devnull static Memimage	*xattach(char*);
 15 76193d7c 2003-09-30 devnull static void	plan9cmap(void);
 16 76193d7c 2003-09-30 devnull static int	setupcmap(XWindow);
 17 d4853cf4 2003-10-01 devnull static int	xreplacescreenimage(void);
 18 76193d7c 2003-09-30 devnull static XGC	xgc(XDrawable, int, int);
 19 76193d7c 2003-09-30 devnull static Image	*getimage0(Display*);
 20 76193d7c 2003-09-30 devnull 
 21 76193d7c 2003-09-30 devnull Xprivate _x;
 22 76193d7c 2003-09-30 devnull 
 23 76193d7c 2003-09-30 devnull Display*
 24 76193d7c 2003-09-30 devnull _initdisplay(void (*error)(Display*, char*), char *label)
 25 76193d7c 2003-09-30 devnull {
 26 76193d7c 2003-09-30 devnull 	Display *d;
 27 76193d7c 2003-09-30 devnull 	Memimage *m;
 28 76193d7c 2003-09-30 devnull 
 29 f7012583 2003-11-25 devnull 	/*
 30 f7012583 2003-11-25 devnull 	 * This rfork(RFNOTEG) isn't exactly right,
 31 f7012583 2003-11-25 devnull 	 * but we need some way to signal window 
 32 f7012583 2003-11-25 devnull 	 * closes.  Right now we post a hangup
 33 f7012583 2003-11-25 devnull 	 * note to the note group, which kills a whole
 34 f7012583 2003-11-25 devnull 	 * lot more than just the current program
 35 f7012583 2003-11-25 devnull 	 * if we don't do this.
 36 f7012583 2003-11-25 devnull 	 */
 37 f7012583 2003-11-25 devnull 	rfork(RFNOTEG);
 38 76193d7c 2003-09-30 devnull 	memimageinit();
 39 76193d7c 2003-09-30 devnull 
 40 76193d7c 2003-09-30 devnull 	d = mallocz(sizeof(Display), 1);
 41 76193d7c 2003-09-30 devnull 	if(d == nil)
 42 76193d7c 2003-09-30 devnull 		return nil;
 43 76193d7c 2003-09-30 devnull 
 44 76193d7c 2003-09-30 devnull 	d->buf = malloc(16000+5);
 45 76193d7c 2003-09-30 devnull 	d->obuf = malloc(16000);
 46 76193d7c 2003-09-30 devnull 	if(d->buf == nil || d->obuf == nil){
 47 76193d7c 2003-09-30 devnull 		free(d->buf);
 48 76193d7c 2003-09-30 devnull 		free(d->obuf);
 49 76193d7c 2003-09-30 devnull 		free(d);
 50 76193d7c 2003-09-30 devnull 		return nil;
 51 76193d7c 2003-09-30 devnull 	}
 52 76193d7c 2003-09-30 devnull 	d->bufsize = 16000;
 53 76193d7c 2003-09-30 devnull 	d->obufsize = 16000;
 54 76193d7c 2003-09-30 devnull 	d->bufp = d->buf;
 55 76193d7c 2003-09-30 devnull 	d->obufp = d->obuf;
 56 76193d7c 2003-09-30 devnull 
 57 76193d7c 2003-09-30 devnull 	m = xattach(label);
 58 76193d7c 2003-09-30 devnull 	if(m == nil){
 59 76193d7c 2003-09-30 devnull 		free(d);
 60 76193d7c 2003-09-30 devnull 		return nil;
 61 76193d7c 2003-09-30 devnull 	}
 62 76193d7c 2003-09-30 devnull 
 63 76193d7c 2003-09-30 devnull 	d->error = error;
 64 76193d7c 2003-09-30 devnull 	_initdisplaymemimage(d, m);
 65 76193d7c 2003-09-30 devnull 	d->screenimage = getimage0(d);
 66 76193d7c 2003-09-30 devnull 	return d;
 67 76193d7c 2003-09-30 devnull }
 68 76193d7c 2003-09-30 devnull 
 69 76193d7c 2003-09-30 devnull static Image*
 70 76193d7c 2003-09-30 devnull getimage0(Display *d)
 71 76193d7c 2003-09-30 devnull {
 72 76193d7c 2003-09-30 devnull 	char *a, info[12*12+1];
 73 76193d7c 2003-09-30 devnull 	int n;
 74 76193d7c 2003-09-30 devnull 	Image *image;
 75 76193d7c 2003-09-30 devnull 
 76 76193d7c 2003-09-30 devnull 	a = bufimage(d, 2);
 77 76193d7c 2003-09-30 devnull 	a[0] = 'J';
 78 76193d7c 2003-09-30 devnull 	a[1] = 'I';
 79 76193d7c 2003-09-30 devnull 	if(flushimage(d, 0) < 0){
 80 76193d7c 2003-09-30 devnull 		fprint(2, "cannot read screen info: %r\n");
 81 76193d7c 2003-09-30 devnull 		abort();
 82 76193d7c 2003-09-30 devnull 	}
 83 161060a4 2003-10-11 devnull 
 84 76193d7c 2003-09-30 devnull 	n = _drawmsgread(d, info, sizeof info);
 85 76193d7c 2003-09-30 devnull 	if(n != 12*12){
 86 76193d7c 2003-09-30 devnull 		fprint(2, "short screen info\n");
 87 76193d7c 2003-09-30 devnull 		abort();
 88 76193d7c 2003-09-30 devnull 	}
 89 76193d7c 2003-09-30 devnull 
 90 76193d7c 2003-09-30 devnull 	image = mallocz(sizeof(Image), 1);
 91 76193d7c 2003-09-30 devnull 	image->display = d;
 92 76193d7c 2003-09-30 devnull 	image->id = 0;
 93 76193d7c 2003-09-30 devnull 	image->chan = strtochan(info+2*12);
 94 76193d7c 2003-09-30 devnull 	image->depth = chantodepth(image->chan);
 95 76193d7c 2003-09-30 devnull 	image->repl = atoi(info+3*12);
 96 76193d7c 2003-09-30 devnull 	image->r.min.x = atoi(info+4*12);
 97 76193d7c 2003-09-30 devnull 	image->r.min.y = atoi(info+5*12);
 98 76193d7c 2003-09-30 devnull 	image->r.max.x = atoi(info+6*12);
 99 76193d7c 2003-09-30 devnull 	image->r.max.y = atoi(info+7*12);
100 76193d7c 2003-09-30 devnull 	image->clipr.min.x = atoi(info+8*12);
101 76193d7c 2003-09-30 devnull 	image->clipr.min.y = atoi(info+9*12);
102 76193d7c 2003-09-30 devnull 	image->clipr.max.x = atoi(info+10*12);
103 76193d7c 2003-09-30 devnull 	image->clipr.max.y = atoi(info+11*12);
104 76193d7c 2003-09-30 devnull 	return image;
105 76193d7c 2003-09-30 devnull }
106 76193d7c 2003-09-30 devnull 
107 76193d7c 2003-09-30 devnull int
108 76193d7c 2003-09-30 devnull getwindow(Display *d, int ref)
109 76193d7c 2003-09-30 devnull {
110 76193d7c 2003-09-30 devnull 	Image *i;
111 76193d7c 2003-09-30 devnull 
112 16a70966 2003-11-23 devnull 	if(_x.destroyed)
113 16a70966 2003-11-23 devnull 		postnote(PNGROUP, getpgrp(), "hangup");
114 d4853cf4 2003-10-01 devnull 	if(xreplacescreenimage() == 0)
115 d4853cf4 2003-10-01 devnull 		return 0;
116 76193d7c 2003-09-30 devnull 	freeimage(d->screenimage);
117 76193d7c 2003-09-30 devnull 	i = getimage0(d);
118 76193d7c 2003-09-30 devnull 	screen = d->screenimage = d->image = i;
119 76193d7c 2003-09-30 devnull 	return 0;
120 76193d7c 2003-09-30 devnull }
121 76193d7c 2003-09-30 devnull 
122 76193d7c 2003-09-30 devnull static int
123 76193d7c 2003-09-30 devnull xerror(XDisplay *d, XErrorEvent *e)
124 76193d7c 2003-09-30 devnull {
125 76193d7c 2003-09-30 devnull 	char buf[200];
126 76193d7c 2003-09-30 devnull 
127 161060a4 2003-10-11 devnull 	print("X error: error_code=%d, request_code=%d, minor=%d disp=%p\n",
128 161060a4 2003-10-11 devnull 		e->error_code, e->request_code, e->minor_code, d);
129 76193d7c 2003-09-30 devnull 	XGetErrorText(d, e->error_code, buf, sizeof buf);
130 76193d7c 2003-09-30 devnull 	print("%s\n", buf);
131 76193d7c 2003-09-30 devnull 	return 0;
132 76193d7c 2003-09-30 devnull }
133 76193d7c 2003-09-30 devnull 
134 76193d7c 2003-09-30 devnull static int
135 76193d7c 2003-09-30 devnull xioerror(XDisplay *d)
136 76193d7c 2003-09-30 devnull {
137 76193d7c 2003-09-30 devnull 	print("X I/O error\n");
138 16a70966 2003-11-23 devnull 	abort();
139 76193d7c 2003-09-30 devnull 	return -1;
140 76193d7c 2003-09-30 devnull }
141 76193d7c 2003-09-30 devnull 
142 76193d7c 2003-09-30 devnull 
143 76193d7c 2003-09-30 devnull static Memimage*
144 76193d7c 2003-09-30 devnull xattach(char *label)
145 76193d7c 2003-09-30 devnull {
146 76193d7c 2003-09-30 devnull 	char *argv[2], *disp;
147 76193d7c 2003-09-30 devnull 	int i, n, xrootid;
148 76193d7c 2003-09-30 devnull 	Rectangle r;
149 76193d7c 2003-09-30 devnull 	XClassHint classhint;
150 76193d7c 2003-09-30 devnull 	XDrawable pmid;
151 76193d7c 2003-09-30 devnull 	XPixmapFormatValues *pfmt;
152 76193d7c 2003-09-30 devnull 	XScreen *xscreen;
153 76193d7c 2003-09-30 devnull 	XSetWindowAttributes attr;
154 76193d7c 2003-09-30 devnull 	XSizeHints normalhint;
155 76193d7c 2003-09-30 devnull 	XTextProperty name;
156 76193d7c 2003-09-30 devnull 	XVisualInfo xvi;
157 76193d7c 2003-09-30 devnull 	XWindow xrootwin;
158 ab5efca8 2003-12-02 devnull 	XWindowAttributes wattr;
159 76193d7c 2003-09-30 devnull 	XWMHints hint;
160 76193d7c 2003-09-30 devnull 
161 76193d7c 2003-09-30 devnull 	/*
162 d4853cf4 2003-10-01 devnull 	if(XInitThreads() == 0){
163 d4853cf4 2003-10-01 devnull 		fprint(2, "XInitThreads failed\n");
164 d4853cf4 2003-10-01 devnull 		abort();
165 d4853cf4 2003-10-01 devnull 	}
166 d4853cf4 2003-10-01 devnull 	*/
167 d4853cf4 2003-10-01 devnull 
168 d4853cf4 2003-10-01 devnull 	/*
169 76193d7c 2003-09-30 devnull 	 * Connect to X server.
170 76193d7c 2003-09-30 devnull 	 */
171 76193d7c 2003-09-30 devnull 	_x.display = XOpenDisplay(NULL);
172 76193d7c 2003-09-30 devnull 	if(_x.display == nil){
173 76193d7c 2003-09-30 devnull 		disp = getenv("DISPLAY");
174 76193d7c 2003-09-30 devnull 		werrstr("XOpenDisplay %s: %r", disp ? disp : ":0");
175 76193d7c 2003-09-30 devnull 		free(disp);
176 76193d7c 2003-09-30 devnull 		return nil;
177 76193d7c 2003-09-30 devnull 	}
178 76193d7c 2003-09-30 devnull 	XSetErrorHandler(xerror);
179 76193d7c 2003-09-30 devnull 	XSetIOErrorHandler(xioerror);
180 76193d7c 2003-09-30 devnull 	xrootid = DefaultScreen(_x.display);
181 76193d7c 2003-09-30 devnull 	xrootwin = DefaultRootWindow(_x.display);
182 76193d7c 2003-09-30 devnull 
183 76193d7c 2003-09-30 devnull 	/* 
184 76193d7c 2003-09-30 devnull 	 * Figure out underlying screen format.
185 76193d7c 2003-09-30 devnull 	 */
186 76193d7c 2003-09-30 devnull 	_x.depth = DefaultDepth(_x.display, xrootid);
187 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 16, TrueColor, &xvi)
188 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 16, DirectColor, &xvi)){
189 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
190 76193d7c 2003-09-30 devnull 		_x.depth = 16;
191 76193d7c 2003-09-30 devnull 		_x.usetable = 1;
192 76193d7c 2003-09-30 devnull 	}
193 76193d7c 2003-09-30 devnull 	else
194 161060a4 2003-10-11 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 15, TrueColor, &xvi)
195 161060a4 2003-10-11 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 15, DirectColor, &xvi)){
196 161060a4 2003-10-11 devnull 		_x.vis = xvi.visual;
197 161060a4 2003-10-11 devnull 		_x.depth = 15;
198 161060a4 2003-10-11 devnull 		_x.usetable = 1;
199 161060a4 2003-10-11 devnull 	}
200 161060a4 2003-10-11 devnull 	else
201 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 24, TrueColor, &xvi)
202 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 24, DirectColor, &xvi)){
203 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
204 76193d7c 2003-09-30 devnull 		_x.depth = 24;
205 76193d7c 2003-09-30 devnull 		_x.usetable = 1;
206 76193d7c 2003-09-30 devnull 	}
207 76193d7c 2003-09-30 devnull 	else
208 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 8, PseudoColor, &xvi)
209 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 8, StaticColor, &xvi)){
210 76193d7c 2003-09-30 devnull 		if(_x.depth > 8){
211 76193d7c 2003-09-30 devnull 			werrstr("can't deal with colormapped depth %d screens",
212 76193d7c 2003-09-30 devnull 				_x.depth);
213 76193d7c 2003-09-30 devnull 			goto err0;
214 76193d7c 2003-09-30 devnull 		}
215 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
216 76193d7c 2003-09-30 devnull 		_x.depth = 8;
217 76193d7c 2003-09-30 devnull 	}
218 76193d7c 2003-09-30 devnull 	else{
219 76193d7c 2003-09-30 devnull 		if(_x.depth != 8){
220 76193d7c 2003-09-30 devnull 			werrstr("can't understand depth %d screen", _x.depth);
221 76193d7c 2003-09-30 devnull 			goto err0;
222 76193d7c 2003-09-30 devnull 		}
223 76193d7c 2003-09-30 devnull 		_x.vis = DefaultVisual(_x.display, xrootid);
224 76193d7c 2003-09-30 devnull 	}
225 76193d7c 2003-09-30 devnull 
226 76193d7c 2003-09-30 devnull 	/*
227 76193d7c 2003-09-30 devnull 	 * _x.depth is only the number of significant pixel bits,
228 76193d7c 2003-09-30 devnull 	 * not the total number of pixel bits.  We need to walk the
229 76193d7c 2003-09-30 devnull 	 * display list to find how many actual bits are used
230 76193d7c 2003-09-30 devnull 	 * per pixel.
231 76193d7c 2003-09-30 devnull 	 */
232 76193d7c 2003-09-30 devnull 	_x.chan = 0;
233 76193d7c 2003-09-30 devnull 	pfmt = XListPixmapFormats(_x.display, &n);
234 76193d7c 2003-09-30 devnull 	for(i=0; i<n; i++){
235 76193d7c 2003-09-30 devnull 		if(pfmt[i].depth == _x.depth){
236 76193d7c 2003-09-30 devnull 			switch(pfmt[i].bits_per_pixel){
237 76193d7c 2003-09-30 devnull 			case 1:	/* untested */
238 76193d7c 2003-09-30 devnull 				_x.chan = GREY1;
239 76193d7c 2003-09-30 devnull 				break;
240 76193d7c 2003-09-30 devnull 			case 2:	/* untested */
241 76193d7c 2003-09-30 devnull 				_x.chan = GREY2;
242 76193d7c 2003-09-30 devnull 				break;
243 76193d7c 2003-09-30 devnull 			case 4:	/* untested */
244 76193d7c 2003-09-30 devnull 				_x.chan = GREY4;
245 76193d7c 2003-09-30 devnull 				break;
246 76193d7c 2003-09-30 devnull 			case 8:
247 76193d7c 2003-09-30 devnull 				_x.chan = CMAP8;
248 161060a4 2003-10-11 devnull 				break;
249 161060a4 2003-10-11 devnull 			case 15:
250 161060a4 2003-10-11 devnull 				_x.chan = RGB15;
251 76193d7c 2003-09-30 devnull 				break;
252 76193d7c 2003-09-30 devnull 			case 16: /* how to tell RGB15? */
253 76193d7c 2003-09-30 devnull 				_x.chan = RGB16;
254 76193d7c 2003-09-30 devnull 				break;
255 76193d7c 2003-09-30 devnull 			case 24: /* untested (impossible?) */
256 76193d7c 2003-09-30 devnull 				_x.chan = RGB24;
257 76193d7c 2003-09-30 devnull 				break;
258 76193d7c 2003-09-30 devnull 			case 32:
259 76193d7c 2003-09-30 devnull 				_x.chan = XRGB32;
260 76193d7c 2003-09-30 devnull 				break;
261 76193d7c 2003-09-30 devnull 			}
262 76193d7c 2003-09-30 devnull 		}
263 76193d7c 2003-09-30 devnull 	}
264 76193d7c 2003-09-30 devnull 	if(_x.chan == 0){
265 76193d7c 2003-09-30 devnull 		werrstr("could not determine screen pixel format");
266 76193d7c 2003-09-30 devnull 		goto err0;
267 76193d7c 2003-09-30 devnull 	}
268 76193d7c 2003-09-30 devnull 
269 76193d7c 2003-09-30 devnull 	/*
270 76193d7c 2003-09-30 devnull 	 * Set up color map if necessary.
271 76193d7c 2003-09-30 devnull 	 */
272 76193d7c 2003-09-30 devnull 	xscreen = DefaultScreenOfDisplay(_x.display);
273 76193d7c 2003-09-30 devnull 	_x.cmap = DefaultColormapOfScreen(xscreen);
274 76193d7c 2003-09-30 devnull 	if(_x.vis->class != StaticColor){
275 76193d7c 2003-09-30 devnull 		plan9cmap();
276 76193d7c 2003-09-30 devnull 		setupcmap(xrootwin);
277 76193d7c 2003-09-30 devnull 	}
278 76193d7c 2003-09-30 devnull 
279 76193d7c 2003-09-30 devnull 	/*
280 76193d7c 2003-09-30 devnull 	 * We get to choose the initial rectangle size.
281 76193d7c 2003-09-30 devnull 	 * This is arbitrary.  In theory we should read the
282 76193d7c 2003-09-30 devnull 	 * command line and allow the traditional X options.
283 76193d7c 2003-09-30 devnull 	 */
284 76193d7c 2003-09-30 devnull 	r = Rect(0, 0, WidthOfScreen(xscreen)*3/4,
285 76193d7c 2003-09-30 devnull 			HeightOfScreen(xscreen)*3/4);
286 76193d7c 2003-09-30 devnull 
287 76193d7c 2003-09-30 devnull 	memset(&attr, 0, sizeof attr);
288 76193d7c 2003-09-30 devnull 	attr.colormap = _x.cmap;
289 161060a4 2003-10-11 devnull 	attr.background_pixel = ~0;
290 76193d7c 2003-09-30 devnull 	attr.border_pixel = 0;
291 76193d7c 2003-09-30 devnull 	_x.drawable = XCreateWindow(
292 76193d7c 2003-09-30 devnull 		_x.display,	/* display */
293 76193d7c 2003-09-30 devnull 		xrootwin,	/* parent */
294 76193d7c 2003-09-30 devnull 		0,		/* x */
295 76193d7c 2003-09-30 devnull 		0,		/* y */
296 76193d7c 2003-09-30 devnull 		Dx(r),		/* width */
297 76193d7c 2003-09-30 devnull 	 	Dy(r),		/* height */
298 76193d7c 2003-09-30 devnull 		0,		/* border width */
299 161060a4 2003-10-11 devnull 		DefaultDepthOfScreen(xscreen),	/* depth */
300 76193d7c 2003-09-30 devnull 		InputOutput,	/* class */
301 76193d7c 2003-09-30 devnull 		_x.vis,		/* visual */
302 76193d7c 2003-09-30 devnull 				/* valuemask */
303 76193d7c 2003-09-30 devnull 		CWBackPixel|CWBorderPixel|CWColormap,
304 76193d7c 2003-09-30 devnull 		&attr		/* attributes (the above aren't?!) */
305 76193d7c 2003-09-30 devnull 	);
306 76193d7c 2003-09-30 devnull 
307 ab5efca8 2003-12-02 devnull 	if(!XGetWindowAttributes(_x.display, _x.drawable, &wattr))
308 ab5efca8 2003-12-02 devnull 		fprint(2, "XGetWindowAttributes failed\n");
309 ab5efca8 2003-12-02 devnull 	else if(wattr.width && wattr.height){
310 ab5efca8 2003-12-02 devnull 		r.max.x = wattr.width;
311 ab5efca8 2003-12-02 devnull 		r.max.y = wattr.height;
312 ab5efca8 2003-12-02 devnull 		if(0) fprint(2, "new rect %dx%d\n", r.max.x, r.max.y);
313 ab5efca8 2003-12-02 devnull 	}
314 ab5efca8 2003-12-02 devnull 
315 76193d7c 2003-09-30 devnull 	/*
316 76193d7c 2003-09-30 devnull 	 * Label and other properties required by ICCCCM.
317 76193d7c 2003-09-30 devnull 	 */
318 76193d7c 2003-09-30 devnull 	memset(&name, 0, sizeof name);
319 76193d7c 2003-09-30 devnull 	if(label == nil)
320 76193d7c 2003-09-30 devnull 		label = "pjw-face-here";
321 76193d7c 2003-09-30 devnull 	name.value = (uchar*)label;
322 76193d7c 2003-09-30 devnull 	name.encoding = XA_STRING;
323 76193d7c 2003-09-30 devnull 	name.format = 8;
324 76193d7c 2003-09-30 devnull 	name.nitems = strlen(name.value);
325 76193d7c 2003-09-30 devnull 
326 76193d7c 2003-09-30 devnull 	memset(&normalhint, 0, sizeof normalhint);
327 76193d7c 2003-09-30 devnull 	normalhint.flags = USSize|PMaxSize;
328 76193d7c 2003-09-30 devnull 	normalhint.max_width = WidthOfScreen(xscreen);
329 76193d7c 2003-09-30 devnull 	normalhint.max_height = HeightOfScreen(xscreen);
330 76193d7c 2003-09-30 devnull 
331 76193d7c 2003-09-30 devnull 	memset(&hint, 0, sizeof hint);
332 76193d7c 2003-09-30 devnull 	hint.flags = InputHint|StateHint;
333 76193d7c 2003-09-30 devnull 	hint.input = 1;
334 76193d7c 2003-09-30 devnull 	hint.initial_state = NormalState;
335 76193d7c 2003-09-30 devnull 
336 76193d7c 2003-09-30 devnull 	memset(&classhint, 0, sizeof classhint);
337 76193d7c 2003-09-30 devnull 	classhint.res_name = label;
338 76193d7c 2003-09-30 devnull 	classhint.res_class = label;
339 76193d7c 2003-09-30 devnull 
340 76193d7c 2003-09-30 devnull 	argv[0] = label;
341 76193d7c 2003-09-30 devnull 	argv[1] = nil;
342 76193d7c 2003-09-30 devnull 
343 76193d7c 2003-09-30 devnull 	XSetWMProperties(
344 76193d7c 2003-09-30 devnull 		_x.display,	/* display */
345 76193d7c 2003-09-30 devnull 		_x.drawable,	/* window */
346 76193d7c 2003-09-30 devnull 		&name,		/* XA_WM_NAME property */
347 76193d7c 2003-09-30 devnull 		&name,		/* XA_WM_ICON_NAME property */
348 76193d7c 2003-09-30 devnull 		argv,		/* XA_WM_COMMAND */
349 76193d7c 2003-09-30 devnull 		1,		/* argc */
350 76193d7c 2003-09-30 devnull 		&normalhint,	/* XA_WM_NORMAL_HINTS */
351 76193d7c 2003-09-30 devnull 		&hint,		/* XA_WM_HINTS */
352 76193d7c 2003-09-30 devnull 		&classhint	/* XA_WM_CLASSHINTS */
353 76193d7c 2003-09-30 devnull 	);
354 76193d7c 2003-09-30 devnull 	XFlush(_x.display);
355 76193d7c 2003-09-30 devnull 
356 76193d7c 2003-09-30 devnull 	/*
357 76193d7c 2003-09-30 devnull 	 * Allocate our local backing store.
358 76193d7c 2003-09-30 devnull 	 */
359 76193d7c 2003-09-30 devnull 	_x.screenr = r;
360 76193d7c 2003-09-30 devnull 	_x.screenpm = XCreatePixmap(_x.display, _x.drawable, Dx(r), Dy(r), _x.depth);
361 161060a4 2003-10-11 devnull 	_x.nextscreenpm = _x.screenpm;
362 32f69c36 2003-12-11 devnull 	_x.screenimage = _xallocmemimage(r, _x.chan, _x.screenpm);
363 76193d7c 2003-09-30 devnull 
364 76193d7c 2003-09-30 devnull 	/*
365 76193d7c 2003-09-30 devnull 	 * Allocate some useful graphics contexts for the future.
366 76193d7c 2003-09-30 devnull 	 */
367 76193d7c 2003-09-30 devnull 	_x.gcfill	= xgc(_x.screenpm, FillSolid, -1);
368 76193d7c 2003-09-30 devnull 	_x.gccopy	= xgc(_x.screenpm, -1, -1);
369 76193d7c 2003-09-30 devnull 	_x.gcsimplesrc 	= xgc(_x.screenpm, FillStippled, -1);
370 76193d7c 2003-09-30 devnull 	_x.gczero	= xgc(_x.screenpm, -1, -1);
371 76193d7c 2003-09-30 devnull 	_x.gcreplsrc	= xgc(_x.screenpm, FillTiled, -1);
372 76193d7c 2003-09-30 devnull 
373 76193d7c 2003-09-30 devnull 	pmid = XCreatePixmap(_x.display, _x.drawable, 1, 1, 1);
374 76193d7c 2003-09-30 devnull 	_x.gcfill0	= xgc(pmid, FillSolid, 0);
375 76193d7c 2003-09-30 devnull 	_x.gccopy0	= xgc(pmid, -1, -1);
376 76193d7c 2003-09-30 devnull 	_x.gcsimplesrc0	= xgc(pmid, FillStippled, -1);
377 76193d7c 2003-09-30 devnull 	_x.gczero0	= xgc(pmid, -1, -1);
378 76193d7c 2003-09-30 devnull 	_x.gcreplsrc0	= xgc(pmid, FillTiled, -1);
379 76193d7c 2003-09-30 devnull 	XFreePixmap(_x.display, pmid);
380 76193d7c 2003-09-30 devnull 
381 76193d7c 2003-09-30 devnull 	/*
382 76193d7c 2003-09-30 devnull 	 * Put the window on the screen.
383 76193d7c 2003-09-30 devnull 	 */
384 76193d7c 2003-09-30 devnull 	XMapWindow(_x.display, _x.drawable);
385 76193d7c 2003-09-30 devnull 	XFlush(_x.display);
386 76193d7c 2003-09-30 devnull 
387 76193d7c 2003-09-30 devnull 	/*
388 16a70966 2003-11-23 devnull 	 * Look up clipboard atom.
389 16a70966 2003-11-23 devnull 	 */
390 268fa933 2003-11-25 devnull 	_x.clipboard = XInternAtom(_x.display, "CLIPBOARD", False);
391 e39b8b19 2003-12-02 devnull 	_x.utf8string = XInternAtom(_x.display, "UTF8_STRING", False);
392 e39b8b19 2003-12-02 devnull 	_x.targets = XInternAtom(_x.display, "TARGETS", False);
393 e39b8b19 2003-12-02 devnull 	_x.text = XInternAtom(_x.display, "TEXT", False);
394 e39b8b19 2003-12-02 devnull 	_x.compoundtext = XInternAtom(_x.display, "COMPOUND_TEXT", False);
395 16a70966 2003-11-23 devnull 
396 16a70966 2003-11-23 devnull 	/*
397 161060a4 2003-10-11 devnull 	 * Lots of display connections for various procs.
398 76193d7c 2003-09-30 devnull 	 */
399 76193d7c 2003-09-30 devnull 	_x.kbdcon	= XOpenDisplay(NULL);
400 76193d7c 2003-09-30 devnull 	_x.mousecon	= XOpenDisplay(NULL);
401 76193d7c 2003-09-30 devnull 	_x.snarfcon	= XOpenDisplay(NULL);
402 76193d7c 2003-09-30 devnull 
403 161060a4 2003-10-11 devnull 	if(0) fprint(2, "x: display=%p kbd=%p mouse=%p snarf=%p\n",
404 161060a4 2003-10-11 devnull 		_x.display, _x.kbdcon, _x.mousecon, _x.snarfcon);
405 161060a4 2003-10-11 devnull 
406 76193d7c 2003-09-30 devnull 	_x.black	= xscreen->black_pixel;
407 76193d7c 2003-09-30 devnull 	_x.white	= xscreen->white_pixel;
408 76193d7c 2003-09-30 devnull 
409 76193d7c 2003-09-30 devnull 	return _x.screenimage;
410 76193d7c 2003-09-30 devnull 
411 76193d7c 2003-09-30 devnull err0:
412 161060a4 2003-10-11 devnull fprint(2, "%r\n");
413 76193d7c 2003-09-30 devnull 	/*
414 76193d7c 2003-09-30 devnull 	 * Should do a better job of cleaning up here.
415 76193d7c 2003-09-30 devnull 	 */
416 76193d7c 2003-09-30 devnull 	XCloseDisplay(_x.display);
417 76193d7c 2003-09-30 devnull 	return nil;
418 16a70966 2003-11-23 devnull }
419 16a70966 2003-11-23 devnull 
420 16a70966 2003-11-23 devnull int
421 16a70966 2003-11-23 devnull drawsetlabel(Display *d, char *label)
422 16a70966 2003-11-23 devnull {
423 16a70966 2003-11-23 devnull 	char *argv[2];
424 16a70966 2003-11-23 devnull 	XClassHint classhint;
425 16a70966 2003-11-23 devnull 	XTextProperty name;
426 16a70966 2003-11-23 devnull 
427 16a70966 2003-11-23 devnull 	/*
428 16a70966 2003-11-23 devnull 	 * Label and other properties required by ICCCCM.
429 16a70966 2003-11-23 devnull 	 */
430 16a70966 2003-11-23 devnull 	memset(&name, 0, sizeof name);
431 16a70966 2003-11-23 devnull 	if(label == nil)
432 16a70966 2003-11-23 devnull 		label = "pjw-face-here";
433 16a70966 2003-11-23 devnull 	name.value = (uchar*)label;
434 16a70966 2003-11-23 devnull 	name.encoding = XA_STRING;
435 16a70966 2003-11-23 devnull 	name.format = 8;
436 16a70966 2003-11-23 devnull 	name.nitems = strlen(name.value);
437 16a70966 2003-11-23 devnull 
438 16a70966 2003-11-23 devnull 	memset(&classhint, 0, sizeof classhint);
439 16a70966 2003-11-23 devnull 	classhint.res_name = label;
440 16a70966 2003-11-23 devnull 	classhint.res_class = label;
441 16a70966 2003-11-23 devnull 
442 16a70966 2003-11-23 devnull 	argv[0] = label;
443 16a70966 2003-11-23 devnull 	argv[1] = nil;
444 16a70966 2003-11-23 devnull 
445 16a70966 2003-11-23 devnull 	XSetWMProperties(
446 16a70966 2003-11-23 devnull 		_x.display,	/* display */
447 16a70966 2003-11-23 devnull 		_x.drawable,	/* window */
448 16a70966 2003-11-23 devnull 		&name,		/* XA_WM_NAME property */
449 16a70966 2003-11-23 devnull 		&name,		/* XA_WM_ICON_NAME property */
450 16a70966 2003-11-23 devnull 		argv,		/* XA_WM_COMMAND */
451 16a70966 2003-11-23 devnull 		1,		/* argc */
452 16a70966 2003-11-23 devnull 		nil,		/* XA_WM_NORMAL_HINTS */
453 16a70966 2003-11-23 devnull 		nil,		/* XA_WM_HINTS */
454 16a70966 2003-11-23 devnull 		&classhint	/* XA_WM_CLASSHINTS */
455 16a70966 2003-11-23 devnull 	);
456 16a70966 2003-11-23 devnull 	XFlush(_x.display);
457 16a70966 2003-11-23 devnull 	return 0;
458 76193d7c 2003-09-30 devnull }
459 76193d7c 2003-09-30 devnull 
460 76193d7c 2003-09-30 devnull /*
461 76193d7c 2003-09-30 devnull  * Create a GC with a particular fill style and XXX.
462 76193d7c 2003-09-30 devnull  * Disable generation of GraphicsExpose/NoExpose events in the GC.
463 76193d7c 2003-09-30 devnull  */
464 76193d7c 2003-09-30 devnull static XGC
465 76193d7c 2003-09-30 devnull xgc(XDrawable d, int fillstyle, int foreground)
466 76193d7c 2003-09-30 devnull {
467 76193d7c 2003-09-30 devnull 	XGC gc;
468 76193d7c 2003-09-30 devnull 	XGCValues v;
469 76193d7c 2003-09-30 devnull 
470 76193d7c 2003-09-30 devnull 	memset(&v, 0, sizeof v);
471 76193d7c 2003-09-30 devnull 	v.function = GXcopy;
472 76193d7c 2003-09-30 devnull 	v.graphics_exposures = False;
473 76193d7c 2003-09-30 devnull 	gc = XCreateGC(_x.display, d, GCFunction|GCGraphicsExposures, &v);
474 76193d7c 2003-09-30 devnull 	if(fillstyle != -1)
475 76193d7c 2003-09-30 devnull 		XSetFillStyle(_x.display, gc, fillstyle);
476 76193d7c 2003-09-30 devnull 	if(foreground != -1)
477 76193d7c 2003-09-30 devnull 		XSetForeground(_x.display, gc, 0);
478 76193d7c 2003-09-30 devnull 	return gc;
479 76193d7c 2003-09-30 devnull }
480 76193d7c 2003-09-30 devnull 
481 76193d7c 2003-09-30 devnull 
482 76193d7c 2003-09-30 devnull /*
483 76193d7c 2003-09-30 devnull  * Initialize map with the Plan 9 rgbv color map.
484 76193d7c 2003-09-30 devnull  */
485 76193d7c 2003-09-30 devnull static void
486 76193d7c 2003-09-30 devnull plan9cmap(void)
487 76193d7c 2003-09-30 devnull {
488 76193d7c 2003-09-30 devnull 	int r, g, b, cr, cg, cb, v, num, den, idx, v7, idx7;
489 76193d7c 2003-09-30 devnull 	static int once;
490 76193d7c 2003-09-30 devnull 
491 76193d7c 2003-09-30 devnull 	if(once)
492 76193d7c 2003-09-30 devnull 		return;
493 76193d7c 2003-09-30 devnull 	once = 1;
494 76193d7c 2003-09-30 devnull 
495 76193d7c 2003-09-30 devnull 	for(r=0; r!=4; r++)
496 76193d7c 2003-09-30 devnull 	for(g = 0; g != 4; g++)
497 76193d7c 2003-09-30 devnull 	for(b = 0; b!=4; b++)
498 76193d7c 2003-09-30 devnull 	for(v = 0; v!=4; v++){
499 76193d7c 2003-09-30 devnull 		den=r;
500 76193d7c 2003-09-30 devnull 		if(g > den)
501 76193d7c 2003-09-30 devnull 			den=g;
502 76193d7c 2003-09-30 devnull 		if(b > den)
503 76193d7c 2003-09-30 devnull 			den=b;
504 76193d7c 2003-09-30 devnull 		/* divide check -- pick grey shades */
505 76193d7c 2003-09-30 devnull 		if(den==0)
506 76193d7c 2003-09-30 devnull 			cr=cg=cb=v*17;
507 76193d7c 2003-09-30 devnull 		else {
508 76193d7c 2003-09-30 devnull 			num=17*(4*den+v);
509 76193d7c 2003-09-30 devnull 			cr=r*num/den;
510 76193d7c 2003-09-30 devnull 			cg=g*num/den;
511 76193d7c 2003-09-30 devnull 			cb=b*num/den;
512 76193d7c 2003-09-30 devnull 		}
513 76193d7c 2003-09-30 devnull 		idx = r*64 + v*16 + ((g*4 + b + v - r) & 15);
514 76193d7c 2003-09-30 devnull 		_x.map[idx].red = cr*0x0101;
515 76193d7c 2003-09-30 devnull 		_x.map[idx].green = cg*0x0101;
516 76193d7c 2003-09-30 devnull 		_x.map[idx].blue = cb*0x0101;
517 76193d7c 2003-09-30 devnull 		_x.map[idx].pixel = idx;
518 76193d7c 2003-09-30 devnull 		_x.map[idx].flags = DoRed|DoGreen|DoBlue;
519 76193d7c 2003-09-30 devnull 
520 76193d7c 2003-09-30 devnull 		v7 = v >> 1;
521 76193d7c 2003-09-30 devnull 		idx7 = r*32 + v7*16 + g*4 + b;
522 76193d7c 2003-09-30 devnull 		if((v & 1) == v7){
523 76193d7c 2003-09-30 devnull 			_x.map7to8[idx7][0] = idx;
524 76193d7c 2003-09-30 devnull 			if(den == 0) { 		/* divide check -- pick grey shades */
525 76193d7c 2003-09-30 devnull 				cr = ((255.0/7.0)*v7)+0.5;
526 76193d7c 2003-09-30 devnull 				cg = cr;
527 76193d7c 2003-09-30 devnull 				cb = cr;
528 76193d7c 2003-09-30 devnull 			}
529 76193d7c 2003-09-30 devnull 			else {
530 76193d7c 2003-09-30 devnull 				num=17*15*(4*den+v7*2)/14;
531 76193d7c 2003-09-30 devnull 				cr=r*num/den;
532 76193d7c 2003-09-30 devnull 				cg=g*num/den;
533 76193d7c 2003-09-30 devnull 				cb=b*num/den;
534 76193d7c 2003-09-30 devnull 			}
535 76193d7c 2003-09-30 devnull 			_x.map7[idx7].red = cr*0x0101;
536 76193d7c 2003-09-30 devnull 			_x.map7[idx7].green = cg*0x0101;
537 76193d7c 2003-09-30 devnull 			_x.map7[idx7].blue = cb*0x0101;
538 76193d7c 2003-09-30 devnull 			_x.map7[idx7].pixel = idx7;
539 76193d7c 2003-09-30 devnull 			_x.map7[idx7].flags = DoRed|DoGreen|DoBlue;
540 76193d7c 2003-09-30 devnull 		}
541 76193d7c 2003-09-30 devnull 		else
542 76193d7c 2003-09-30 devnull 			_x.map7to8[idx7][1] = idx;
543 76193d7c 2003-09-30 devnull 	}
544 76193d7c 2003-09-30 devnull }
545 76193d7c 2003-09-30 devnull 
546 76193d7c 2003-09-30 devnull /*
547 76193d7c 2003-09-30 devnull  * Initialize and install the rgbv color map as a private color map
548 76193d7c 2003-09-30 devnull  * for this application.  It gets the best colors when it has the
549 76193d7c 2003-09-30 devnull  * cursor focus.
550 76193d7c 2003-09-30 devnull  */
551 76193d7c 2003-09-30 devnull static int 
552 76193d7c 2003-09-30 devnull setupcmap(XWindow w)
553 76193d7c 2003-09-30 devnull {
554 76193d7c 2003-09-30 devnull 	char buf[30];
555 76193d7c 2003-09-30 devnull 	int i;
556 76193d7c 2003-09-30 devnull 	u32int p, pp;
557 76193d7c 2003-09-30 devnull 	XColor c;
558 76193d7c 2003-09-30 devnull 
559 76193d7c 2003-09-30 devnull 	if(_x.depth <= 1)
560 76193d7c 2003-09-30 devnull 		return 0;
561 76193d7c 2003-09-30 devnull 
562 76193d7c 2003-09-30 devnull 	if(_x.depth >= 24) {
563 76193d7c 2003-09-30 devnull 		/*
564 76193d7c 2003-09-30 devnull 		 * The pixel value returned from XGetPixel needs to
565 76193d7c 2003-09-30 devnull 		 * be converted to RGB so we can call rgb2cmap()
566 76193d7c 2003-09-30 devnull 		 * to translate between 24 bit X and our color. Unfortunately,
567 76193d7c 2003-09-30 devnull 		 * the return value appears to be display server endian 
568 76193d7c 2003-09-30 devnull 		 * dependant. Therefore, we run some heuristics to later
569 76193d7c 2003-09-30 devnull 		 * determine how to mask the int value correctly.
570 76193d7c 2003-09-30 devnull 		 * Yeah, I know we can look at _x.vis->byte_order but 
571 76193d7c 2003-09-30 devnull 		 * some displays say MSB even though they run on LSB.
572 76193d7c 2003-09-30 devnull 		 * Besides, this is more anal.
573 76193d7c 2003-09-30 devnull 		 */
574 76193d7c 2003-09-30 devnull 
575 76193d7c 2003-09-30 devnull 		c = _x.map[19];	/* known to have different R, G, B values */
576 76193d7c 2003-09-30 devnull 		if(!XAllocColor(_x.display, _x.cmap, &c)){
577 76193d7c 2003-09-30 devnull 			werrstr("XAllocColor: %r");
578 76193d7c 2003-09-30 devnull 			return -1;
579 76193d7c 2003-09-30 devnull 		}
580 76193d7c 2003-09-30 devnull 		p  = c.pixel;
581 76193d7c 2003-09-30 devnull 		pp = rgb2cmap((p>>16)&0xff,(p>>8)&0xff,p&0xff);
582 76193d7c 2003-09-30 devnull 		if(pp != _x.map[19].pixel) {
583 76193d7c 2003-09-30 devnull 			/* check if endian is other way */
584 76193d7c 2003-09-30 devnull 			pp = rgb2cmap(p&0xff,(p>>8)&0xff,(p>>16)&0xff);
585 76193d7c 2003-09-30 devnull 			if(pp != _x.map[19].pixel){
586 76193d7c 2003-09-30 devnull 				werrstr("cannot detect X server byte order");
587 76193d7c 2003-09-30 devnull 				return -1;
588 76193d7c 2003-09-30 devnull 			}
589 76193d7c 2003-09-30 devnull 
590 76193d7c 2003-09-30 devnull 			switch(_x.chan){
591 76193d7c 2003-09-30 devnull 			case RGB24:
592 76193d7c 2003-09-30 devnull 				_x.chan = BGR24;
593 76193d7c 2003-09-30 devnull 				break;
594 76193d7c 2003-09-30 devnull 			case XRGB32:
595 76193d7c 2003-09-30 devnull 				_x.chan = XBGR32;
596 76193d7c 2003-09-30 devnull 				break;
597 76193d7c 2003-09-30 devnull 			default:
598 76193d7c 2003-09-30 devnull 				werrstr("cannot byteswap channel %s",
599 76193d7c 2003-09-30 devnull 					chantostr(buf, _x.chan));
600 76193d7c 2003-09-30 devnull 				break;
601 76193d7c 2003-09-30 devnull 			}
602 76193d7c 2003-09-30 devnull 		}
603 76193d7c 2003-09-30 devnull 	}else if(_x.vis->class == TrueColor || _x.vis->class == DirectColor){
604 76193d7c 2003-09-30 devnull 		/*
605 76193d7c 2003-09-30 devnull 		 * Do nothing.  We have no way to express a
606 76193d7c 2003-09-30 devnull 		 * mixed-endian 16-bit screen, so pretend they don't exist.
607 76193d7c 2003-09-30 devnull 		 */
608 76193d7c 2003-09-30 devnull 	}else if(_x.vis->class == PseudoColor){
609 76193d7c 2003-09-30 devnull 		if(_x.usetable == 0){
610 76193d7c 2003-09-30 devnull 			_x.cmap = XCreateColormap(_x.display, w, _x.vis, AllocAll); 
611 76193d7c 2003-09-30 devnull 			XStoreColors(_x.display, _x.cmap, _x.map, 256);
612 76193d7c 2003-09-30 devnull 			for(i = 0; i < 256; i++){
613 76193d7c 2003-09-30 devnull 				_x.tox11[i] = i;
614 76193d7c 2003-09-30 devnull 				_x.toplan9[i] = i;
615 76193d7c 2003-09-30 devnull 			}
616 76193d7c 2003-09-30 devnull 		}else{
617 76193d7c 2003-09-30 devnull 			for(i = 0; i < 128; i++){
618 76193d7c 2003-09-30 devnull 				c = _x.map7[i];
619 76193d7c 2003-09-30 devnull 				if(!XAllocColor(_x.display, _x.cmap, &c)){
620 76193d7c 2003-09-30 devnull 					werrstr("can't allocate colors in 7-bit map");
621 76193d7c 2003-09-30 devnull 					return -1;
622 76193d7c 2003-09-30 devnull 				}
623 76193d7c 2003-09-30 devnull 				_x.tox11[_x.map7to8[i][0]] = c.pixel;
624 76193d7c 2003-09-30 devnull 				_x.tox11[_x.map7to8[i][1]] = c.pixel;
625 76193d7c 2003-09-30 devnull 				_x.toplan9[c.pixel] = _x.map7to8[i][0];
626 76193d7c 2003-09-30 devnull 			}
627 76193d7c 2003-09-30 devnull 		}
628 76193d7c 2003-09-30 devnull 	}else{
629 76193d7c 2003-09-30 devnull 		werrstr("unsupported visual class %d", _x.vis->class);
630 76193d7c 2003-09-30 devnull 		return -1;
631 76193d7c 2003-09-30 devnull 	}
632 76193d7c 2003-09-30 devnull 	return 0;
633 76193d7c 2003-09-30 devnull }
634 76193d7c 2003-09-30 devnull 
635 76193d7c 2003-09-30 devnull void
636 76193d7c 2003-09-30 devnull flushmemscreen(Rectangle r)
637 76193d7c 2003-09-30 devnull {
638 161060a4 2003-10-11 devnull 	if(_x.nextscreenpm != _x.screenpm){
639 161060a4 2003-10-11 devnull 		qlock(&_x.screenlock);
640 161060a4 2003-10-11 devnull 		XSync(_x.display, False);
641 161060a4 2003-10-11 devnull 		XFreePixmap(_x.display, _x.screenpm);
642 161060a4 2003-10-11 devnull 		_x.screenpm = _x.nextscreenpm;
643 161060a4 2003-10-11 devnull 		qunlock(&_x.screenlock);
644 161060a4 2003-10-11 devnull 	}
645 161060a4 2003-10-11 devnull 
646 76193d7c 2003-09-30 devnull 	if(r.min.x >= r.max.x || r.min.y >= r.max.y)
647 76193d7c 2003-09-30 devnull 		return;
648 76193d7c 2003-09-30 devnull 	XCopyArea(_x.display, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
649 76193d7c 2003-09-30 devnull 		Dx(r), Dy(r), r.min.x, r.min.y);
650 76193d7c 2003-09-30 devnull 	XFlush(_x.display);
651 76193d7c 2003-09-30 devnull }
652 76193d7c 2003-09-30 devnull 
653 76193d7c 2003-09-30 devnull void
654 32f69c36 2003-12-11 devnull _xexpose(XEvent *e, XDisplay *xd)
655 76193d7c 2003-09-30 devnull {
656 76193d7c 2003-09-30 devnull 	XExposeEvent *xe;
657 76193d7c 2003-09-30 devnull 	Rectangle r;
658 76193d7c 2003-09-30 devnull 
659 161060a4 2003-10-11 devnull 	qlock(&_x.screenlock);
660 161060a4 2003-10-11 devnull 	if(_x.screenpm != _x.nextscreenpm){
661 161060a4 2003-10-11 devnull 		qunlock(&_x.screenlock);
662 161060a4 2003-10-11 devnull 		return;
663 161060a4 2003-10-11 devnull 	}
664 76193d7c 2003-09-30 devnull 	xe = (XExposeEvent*)e;
665 76193d7c 2003-09-30 devnull 	r.min.x = xe->x;
666 76193d7c 2003-09-30 devnull 	r.min.y = xe->y;
667 76193d7c 2003-09-30 devnull 	r.max.x = xe->x+xe->width;
668 76193d7c 2003-09-30 devnull 	r.max.y = xe->y+xe->height;
669 76193d7c 2003-09-30 devnull 	XCopyArea(xd, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
670 76193d7c 2003-09-30 devnull 		Dx(r), Dy(r), r.min.x, r.min.y);
671 161060a4 2003-10-11 devnull 	XSync(xd, False);
672 161060a4 2003-10-11 devnull 	qunlock(&_x.screenlock);
673 16a70966 2003-11-23 devnull }
674 16a70966 2003-11-23 devnull 
675 16a70966 2003-11-23 devnull int
676 32f69c36 2003-12-11 devnull _xdestroy(XEvent *e, XDisplay *xd)
677 16a70966 2003-11-23 devnull {
678 16a70966 2003-11-23 devnull 	XDestroyWindowEvent *xe;
679 16a70966 2003-11-23 devnull 
680 16a70966 2003-11-23 devnull 	xe = (XDestroyWindowEvent*)e;
681 16a70966 2003-11-23 devnull 	if(xe->window == _x.drawable){
682 16a70966 2003-11-23 devnull 		_x.destroyed = 1;
683 16a70966 2003-11-23 devnull 		return 1;
684 16a70966 2003-11-23 devnull 	}
685 16a70966 2003-11-23 devnull 	return 0;
686 76193d7c 2003-09-30 devnull }
687 76193d7c 2003-09-30 devnull 
688 76193d7c 2003-09-30 devnull int
689 32f69c36 2003-12-11 devnull _xconfigure(XEvent *e, XDisplay *xd)
690 76193d7c 2003-09-30 devnull {
691 161060a4 2003-10-11 devnull 	Rectangle r;
692 76193d7c 2003-09-30 devnull 	XConfigureEvent *xe = (XConfigureEvent*)e;
693 76193d7c 2003-09-30 devnull 
694 76193d7c 2003-09-30 devnull 	if(xe->width == Dx(_x.screenr) && xe->height == Dy(_x.screenr))
695 76193d7c 2003-09-30 devnull 		return 0;
696 161060a4 2003-10-11 devnull 	if(xe->width==0 || xe->height==0)
697 161060a4 2003-10-11 devnull 		fprint(2, "ignoring resize to %dx%d\n", xe->width, xe->height);
698 161060a4 2003-10-11 devnull 	r = Rect(0, 0, xe->width, xe->height);
699 161060a4 2003-10-11 devnull 	qlock(&_x.screenlock);
700 161060a4 2003-10-11 devnull 	if(_x.screenpm != _x.nextscreenpm){
701 161060a4 2003-10-11 devnull 		XCopyArea(xd, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
702 161060a4 2003-10-11 devnull 			Dx(r), Dy(r), r.min.x, r.min.y);
703 161060a4 2003-10-11 devnull 		XSync(xd, False);
704 161060a4 2003-10-11 devnull 	}
705 161060a4 2003-10-11 devnull 	qunlock(&_x.screenlock);
706 161060a4 2003-10-11 devnull 	_x.newscreenr = r;
707 d4853cf4 2003-10-01 devnull 	return 1;
708 d4853cf4 2003-10-01 devnull }
709 d4853cf4 2003-10-01 devnull 
710 d4853cf4 2003-10-01 devnull static int
711 d4853cf4 2003-10-01 devnull xreplacescreenimage(void)
712 d4853cf4 2003-10-01 devnull {
713 d4853cf4 2003-10-01 devnull 	Memimage *m;
714 d4853cf4 2003-10-01 devnull 	XDrawable pixmap;
715 d4853cf4 2003-10-01 devnull 	Rectangle r;
716 d4853cf4 2003-10-01 devnull 
717 d4853cf4 2003-10-01 devnull 	r = _x.newscreenr;
718 d4853cf4 2003-10-01 devnull 	if(eqrect(_x.screenr, r))
719 d4853cf4 2003-10-01 devnull 		return 0;
720 d4853cf4 2003-10-01 devnull 
721 d4853cf4 2003-10-01 devnull 	pixmap = XCreatePixmap(_x.display, _x.drawable, Dx(r), Dy(r), _x.depth);
722 32f69c36 2003-12-11 devnull 	m = _xallocmemimage(r, _x.chan, pixmap);
723 161060a4 2003-10-11 devnull 	if(_x.nextscreenpm != _x.screenpm)
724 161060a4 2003-10-11 devnull 		XFreePixmap(_x.display, _x.nextscreenpm);
725 161060a4 2003-10-11 devnull 	_x.nextscreenpm = pixmap;
726 d4853cf4 2003-10-01 devnull 	_x.screenr = r;
727 76193d7c 2003-09-30 devnull 	_drawreplacescreenimage(m);
728 76193d7c 2003-09-30 devnull 	return 1;
729 76193d7c 2003-09-30 devnull }
730 76193d7c 2003-09-30 devnull