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 <u.h>
  5 be22ae2d 2004-03-26 devnull #include "x11-inc.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 6325e032 2004-03-26 devnull static Image	*getimage0(Display*, Image*);
 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 6325e032 2004-03-26 devnull 	d->screenimage = getimage0(d, 0);
 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 6325e032 2004-03-26 devnull getimage0(Display *d, Image *image)
 71 76193d7c 2003-09-30 devnull {
 72 be22ae2d 2004-03-26 devnull 	char info[12*12+1];
 73 be22ae2d 2004-03-26 devnull 	uchar *a;
 74 76193d7c 2003-09-30 devnull 	int n;
 75 6325e032 2004-03-26 devnull 	extern int _freeimage1(Image*);
 76 76193d7c 2003-09-30 devnull 
 77 6325e032 2004-03-26 devnull 	/*
 78 6325e032 2004-03-26 devnull 	 * If there's an old screen, it has id 0.  The 'J' request below
 79 6325e032 2004-03-26 devnull 	 * will try to install the new screen as id 0, so the old one 
 80 6325e032 2004-03-26 devnull 	 * must be freed first.
 81 6325e032 2004-03-26 devnull 	 */
 82 6325e032 2004-03-26 devnull 	if(image){
 83 6325e032 2004-03-26 devnull 		_freeimage1(image);
 84 6325e032 2004-03-26 devnull 		memset(image, 0, sizeof(Image));
 85 6325e032 2004-03-26 devnull 	}
 86 6325e032 2004-03-26 devnull 
 87 76193d7c 2003-09-30 devnull 	a = bufimage(d, 2);
 88 76193d7c 2003-09-30 devnull 	a[0] = 'J';
 89 76193d7c 2003-09-30 devnull 	a[1] = 'I';
 90 76193d7c 2003-09-30 devnull 	if(flushimage(d, 0) < 0){
 91 76193d7c 2003-09-30 devnull 		fprint(2, "cannot read screen info: %r\n");
 92 76193d7c 2003-09-30 devnull 		abort();
 93 76193d7c 2003-09-30 devnull 	}
 94 161060a4 2003-10-11 devnull 
 95 76193d7c 2003-09-30 devnull 	n = _drawmsgread(d, info, sizeof info);
 96 76193d7c 2003-09-30 devnull 	if(n != 12*12){
 97 76193d7c 2003-09-30 devnull 		fprint(2, "short screen info\n");
 98 76193d7c 2003-09-30 devnull 		abort();
 99 76193d7c 2003-09-30 devnull 	}
100 76193d7c 2003-09-30 devnull 
101 6325e032 2004-03-26 devnull 	if(image == nil){
102 6325e032 2004-03-26 devnull 		image = mallocz(sizeof(Image), 1);
103 6325e032 2004-03-26 devnull 		if(image == nil){
104 6325e032 2004-03-26 devnull 			fprint(2, "cannot allocate image: %r\n");
105 6325e032 2004-03-26 devnull 			abort();
106 6325e032 2004-03-26 devnull 		}
107 6325e032 2004-03-26 devnull 	}
108 6325e032 2004-03-26 devnull 
109 76193d7c 2003-09-30 devnull 	image->display = d;
110 76193d7c 2003-09-30 devnull 	image->id = 0;
111 76193d7c 2003-09-30 devnull 	image->chan = strtochan(info+2*12);
112 76193d7c 2003-09-30 devnull 	image->depth = chantodepth(image->chan);
113 76193d7c 2003-09-30 devnull 	image->repl = atoi(info+3*12);
114 76193d7c 2003-09-30 devnull 	image->r.min.x = atoi(info+4*12);
115 76193d7c 2003-09-30 devnull 	image->r.min.y = atoi(info+5*12);
116 76193d7c 2003-09-30 devnull 	image->r.max.x = atoi(info+6*12);
117 76193d7c 2003-09-30 devnull 	image->r.max.y = atoi(info+7*12);
118 76193d7c 2003-09-30 devnull 	image->clipr.min.x = atoi(info+8*12);
119 76193d7c 2003-09-30 devnull 	image->clipr.min.y = atoi(info+9*12);
120 76193d7c 2003-09-30 devnull 	image->clipr.max.x = atoi(info+10*12);
121 76193d7c 2003-09-30 devnull 	image->clipr.max.y = atoi(info+11*12);
122 76193d7c 2003-09-30 devnull 	return image;
123 76193d7c 2003-09-30 devnull }
124 76193d7c 2003-09-30 devnull 
125 76193d7c 2003-09-30 devnull int
126 76193d7c 2003-09-30 devnull getwindow(Display *d, int ref)
127 76193d7c 2003-09-30 devnull {
128 76193d7c 2003-09-30 devnull 	Image *i;
129 6325e032 2004-03-26 devnull 	Image *oi;
130 76193d7c 2003-09-30 devnull 
131 16a70966 2003-11-23 devnull 	if(_x.destroyed)
132 16a70966 2003-11-23 devnull 		postnote(PNGROUP, getpgrp(), "hangup");
133 d4853cf4 2003-10-01 devnull 	if(xreplacescreenimage() == 0)
134 d4853cf4 2003-10-01 devnull 		return 0;
135 6325e032 2004-03-26 devnull 
136 6325e032 2004-03-26 devnull 	/*
137 6325e032 2004-03-26 devnull 	 * Libdraw promises not to change the value of "screen",
138 6325e032 2004-03-26 devnull 	 * so we have to reuse the image structure
139 6325e032 2004-03-26 devnull 	 * memory we already have.
140 6325e032 2004-03-26 devnull 	 */
141 6325e032 2004-03-26 devnull 	oi = d->screenimage;
142 6325e032 2004-03-26 devnull 	i = getimage0(d, oi);
143 76193d7c 2003-09-30 devnull 	screen = d->screenimage = d->image = i;
144 6325e032 2004-03-26 devnull 	// fprint(2, "getwindow %p -> %p\n", oi, i);
145 76193d7c 2003-09-30 devnull 	return 0;
146 76193d7c 2003-09-30 devnull }
147 76193d7c 2003-09-30 devnull 
148 76193d7c 2003-09-30 devnull static int
149 76193d7c 2003-09-30 devnull xerror(XDisplay *d, XErrorEvent *e)
150 76193d7c 2003-09-30 devnull {
151 76193d7c 2003-09-30 devnull 	char buf[200];
152 76193d7c 2003-09-30 devnull 
153 af78a4cd 2004-03-02 devnull 	if(e->request_code == 42) /* XSetInputFocus */
154 af78a4cd 2004-03-02 devnull 		return 0;
155 6b2d0fd9 2004-03-26 devnull 	if(e->request_code == 18) /* XChangeProperty */
156 6b2d0fd9 2004-03-26 devnull 		return 0;
157 6b2d0fd9 2004-03-26 devnull 
158 161060a4 2003-10-11 devnull 	print("X error: error_code=%d, request_code=%d, minor=%d disp=%p\n",
159 161060a4 2003-10-11 devnull 		e->error_code, e->request_code, e->minor_code, d);
160 76193d7c 2003-09-30 devnull 	XGetErrorText(d, e->error_code, buf, sizeof buf);
161 76193d7c 2003-09-30 devnull 	print("%s\n", buf);
162 76193d7c 2003-09-30 devnull 	return 0;
163 76193d7c 2003-09-30 devnull }
164 76193d7c 2003-09-30 devnull 
165 76193d7c 2003-09-30 devnull static int
166 76193d7c 2003-09-30 devnull xioerror(XDisplay *d)
167 76193d7c 2003-09-30 devnull {
168 76193d7c 2003-09-30 devnull 	print("X I/O error\n");
169 16a70966 2003-11-23 devnull 	abort();
170 76193d7c 2003-09-30 devnull 	return -1;
171 76193d7c 2003-09-30 devnull }
172 76193d7c 2003-09-30 devnull 
173 76193d7c 2003-09-30 devnull 
174 76193d7c 2003-09-30 devnull static Memimage*
175 76193d7c 2003-09-30 devnull xattach(char *label)
176 76193d7c 2003-09-30 devnull {
177 76193d7c 2003-09-30 devnull 	char *argv[2], *disp;
178 76193d7c 2003-09-30 devnull 	int i, n, xrootid;
179 76193d7c 2003-09-30 devnull 	Rectangle r;
180 76193d7c 2003-09-30 devnull 	XClassHint classhint;
181 76193d7c 2003-09-30 devnull 	XDrawable pmid;
182 76193d7c 2003-09-30 devnull 	XPixmapFormatValues *pfmt;
183 76193d7c 2003-09-30 devnull 	XScreen *xscreen;
184 76193d7c 2003-09-30 devnull 	XSetWindowAttributes attr;
185 76193d7c 2003-09-30 devnull 	XSizeHints normalhint;
186 76193d7c 2003-09-30 devnull 	XTextProperty name;
187 76193d7c 2003-09-30 devnull 	XVisualInfo xvi;
188 76193d7c 2003-09-30 devnull 	XWindow xrootwin;
189 ab5efca8 2003-12-02 devnull 	XWindowAttributes wattr;
190 76193d7c 2003-09-30 devnull 	XWMHints hint;
191 4f30f3b4 2004-03-30 devnull 	Atom atoms[2];
192 76193d7c 2003-09-30 devnull 
193 76193d7c 2003-09-30 devnull 	/*
194 d4853cf4 2003-10-01 devnull 	if(XInitThreads() == 0){
195 d4853cf4 2003-10-01 devnull 		fprint(2, "XInitThreads failed\n");
196 d4853cf4 2003-10-01 devnull 		abort();
197 d4853cf4 2003-10-01 devnull 	}
198 d4853cf4 2003-10-01 devnull 	*/
199 d4853cf4 2003-10-01 devnull 
200 d4853cf4 2003-10-01 devnull 	/*
201 76193d7c 2003-09-30 devnull 	 * Connect to X server.
202 76193d7c 2003-09-30 devnull 	 */
203 76193d7c 2003-09-30 devnull 	_x.display = XOpenDisplay(NULL);
204 76193d7c 2003-09-30 devnull 	if(_x.display == nil){
205 76193d7c 2003-09-30 devnull 		disp = getenv("DISPLAY");
206 76193d7c 2003-09-30 devnull 		werrstr("XOpenDisplay %s: %r", disp ? disp : ":0");
207 76193d7c 2003-09-30 devnull 		free(disp);
208 76193d7c 2003-09-30 devnull 		return nil;
209 76193d7c 2003-09-30 devnull 	}
210 76193d7c 2003-09-30 devnull 	XSetErrorHandler(xerror);
211 76193d7c 2003-09-30 devnull 	XSetIOErrorHandler(xioerror);
212 76193d7c 2003-09-30 devnull 	xrootid = DefaultScreen(_x.display);
213 76193d7c 2003-09-30 devnull 	xrootwin = DefaultRootWindow(_x.display);
214 76193d7c 2003-09-30 devnull 
215 76193d7c 2003-09-30 devnull 	/* 
216 76193d7c 2003-09-30 devnull 	 * Figure out underlying screen format.
217 76193d7c 2003-09-30 devnull 	 */
218 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 16, TrueColor, &xvi)
219 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 16, DirectColor, &xvi)){
220 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
221 76193d7c 2003-09-30 devnull 		_x.depth = 16;
222 76193d7c 2003-09-30 devnull 	}
223 76193d7c 2003-09-30 devnull 	else
224 161060a4 2003-10-11 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 15, TrueColor, &xvi)
225 161060a4 2003-10-11 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 15, DirectColor, &xvi)){
226 161060a4 2003-10-11 devnull 		_x.vis = xvi.visual;
227 161060a4 2003-10-11 devnull 		_x.depth = 15;
228 161060a4 2003-10-11 devnull 	}
229 161060a4 2003-10-11 devnull 	else
230 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 24, TrueColor, &xvi)
231 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 24, DirectColor, &xvi)){
232 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
233 76193d7c 2003-09-30 devnull 		_x.depth = 24;
234 76193d7c 2003-09-30 devnull 	}
235 76193d7c 2003-09-30 devnull 	else
236 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 8, PseudoColor, &xvi)
237 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 8, StaticColor, &xvi)){
238 76193d7c 2003-09-30 devnull 		if(_x.depth > 8){
239 76193d7c 2003-09-30 devnull 			werrstr("can't deal with colormapped depth %d screens",
240 76193d7c 2003-09-30 devnull 				_x.depth);
241 76193d7c 2003-09-30 devnull 			goto err0;
242 76193d7c 2003-09-30 devnull 		}
243 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
244 76193d7c 2003-09-30 devnull 		_x.depth = 8;
245 76193d7c 2003-09-30 devnull 	}
246 76193d7c 2003-09-30 devnull 	else{
247 8ad51794 2004-03-25 devnull 		_x.depth = DefaultDepth(_x.display, xrootid);
248 76193d7c 2003-09-30 devnull 		if(_x.depth != 8){
249 76193d7c 2003-09-30 devnull 			werrstr("can't understand depth %d screen", _x.depth);
250 76193d7c 2003-09-30 devnull 			goto err0;
251 76193d7c 2003-09-30 devnull 		}
252 76193d7c 2003-09-30 devnull 		_x.vis = DefaultVisual(_x.display, xrootid);
253 76193d7c 2003-09-30 devnull 	}
254 76193d7c 2003-09-30 devnull 
255 8ad51794 2004-03-25 devnull 	if(DefaultDepth(_x.display, xrootid) == _x.depth)
256 8ad51794 2004-03-25 devnull 		_x.usetable = 1;
257 8ad51794 2004-03-25 devnull 
258 76193d7c 2003-09-30 devnull 	/*
259 76193d7c 2003-09-30 devnull 	 * _x.depth is only the number of significant pixel bits,
260 76193d7c 2003-09-30 devnull 	 * not the total number of pixel bits.  We need to walk the
261 76193d7c 2003-09-30 devnull 	 * display list to find how many actual bits are used
262 76193d7c 2003-09-30 devnull 	 * per pixel.
263 76193d7c 2003-09-30 devnull 	 */
264 76193d7c 2003-09-30 devnull 	_x.chan = 0;
265 76193d7c 2003-09-30 devnull 	pfmt = XListPixmapFormats(_x.display, &n);
266 76193d7c 2003-09-30 devnull 	for(i=0; i<n; i++){
267 76193d7c 2003-09-30 devnull 		if(pfmt[i].depth == _x.depth){
268 76193d7c 2003-09-30 devnull 			switch(pfmt[i].bits_per_pixel){
269 76193d7c 2003-09-30 devnull 			case 1:	/* untested */
270 76193d7c 2003-09-30 devnull 				_x.chan = GREY1;
271 76193d7c 2003-09-30 devnull 				break;
272 76193d7c 2003-09-30 devnull 			case 2:	/* untested */
273 76193d7c 2003-09-30 devnull 				_x.chan = GREY2;
274 76193d7c 2003-09-30 devnull 				break;
275 76193d7c 2003-09-30 devnull 			case 4:	/* untested */
276 76193d7c 2003-09-30 devnull 				_x.chan = GREY4;
277 76193d7c 2003-09-30 devnull 				break;
278 76193d7c 2003-09-30 devnull 			case 8:
279 76193d7c 2003-09-30 devnull 				_x.chan = CMAP8;
280 161060a4 2003-10-11 devnull 				break;
281 161060a4 2003-10-11 devnull 			case 15:
282 161060a4 2003-10-11 devnull 				_x.chan = RGB15;
283 76193d7c 2003-09-30 devnull 				break;
284 76193d7c 2003-09-30 devnull 			case 16: /* how to tell RGB15? */
285 76193d7c 2003-09-30 devnull 				_x.chan = RGB16;
286 76193d7c 2003-09-30 devnull 				break;
287 76193d7c 2003-09-30 devnull 			case 24: /* untested (impossible?) */
288 76193d7c 2003-09-30 devnull 				_x.chan = RGB24;
289 76193d7c 2003-09-30 devnull 				break;
290 76193d7c 2003-09-30 devnull 			case 32:
291 76193d7c 2003-09-30 devnull 				_x.chan = XRGB32;
292 76193d7c 2003-09-30 devnull 				break;
293 76193d7c 2003-09-30 devnull 			}
294 76193d7c 2003-09-30 devnull 		}
295 76193d7c 2003-09-30 devnull 	}
296 76193d7c 2003-09-30 devnull 	if(_x.chan == 0){
297 76193d7c 2003-09-30 devnull 		werrstr("could not determine screen pixel format");
298 76193d7c 2003-09-30 devnull 		goto err0;
299 76193d7c 2003-09-30 devnull 	}
300 76193d7c 2003-09-30 devnull 
301 76193d7c 2003-09-30 devnull 	/*
302 76193d7c 2003-09-30 devnull 	 * Set up color map if necessary.
303 76193d7c 2003-09-30 devnull 	 */
304 76193d7c 2003-09-30 devnull 	xscreen = DefaultScreenOfDisplay(_x.display);
305 76193d7c 2003-09-30 devnull 	_x.cmap = DefaultColormapOfScreen(xscreen);
306 76193d7c 2003-09-30 devnull 	if(_x.vis->class != StaticColor){
307 76193d7c 2003-09-30 devnull 		plan9cmap();
308 76193d7c 2003-09-30 devnull 		setupcmap(xrootwin);
309 76193d7c 2003-09-30 devnull 	}
310 76193d7c 2003-09-30 devnull 
311 76193d7c 2003-09-30 devnull 	/*
312 76193d7c 2003-09-30 devnull 	 * We get to choose the initial rectangle size.
313 76193d7c 2003-09-30 devnull 	 * This is arbitrary.  In theory we should read the
314 76193d7c 2003-09-30 devnull 	 * command line and allow the traditional X options.
315 76193d7c 2003-09-30 devnull 	 */
316 76193d7c 2003-09-30 devnull 	r = Rect(0, 0, WidthOfScreen(xscreen)*3/4,
317 76193d7c 2003-09-30 devnull 			HeightOfScreen(xscreen)*3/4);
318 76193d7c 2003-09-30 devnull 
319 76193d7c 2003-09-30 devnull 	memset(&attr, 0, sizeof attr);
320 76193d7c 2003-09-30 devnull 	attr.colormap = _x.cmap;
321 161060a4 2003-10-11 devnull 	attr.background_pixel = ~0;
322 76193d7c 2003-09-30 devnull 	attr.border_pixel = 0;
323 76193d7c 2003-09-30 devnull 	_x.drawable = XCreateWindow(
324 76193d7c 2003-09-30 devnull 		_x.display,	/* display */
325 76193d7c 2003-09-30 devnull 		xrootwin,	/* parent */
326 76193d7c 2003-09-30 devnull 		0,		/* x */
327 76193d7c 2003-09-30 devnull 		0,		/* y */
328 76193d7c 2003-09-30 devnull 		Dx(r),		/* width */
329 76193d7c 2003-09-30 devnull 	 	Dy(r),		/* height */
330 76193d7c 2003-09-30 devnull 		0,		/* border width */
331 8ad51794 2004-03-25 devnull 		_x.depth,	/* depth */
332 76193d7c 2003-09-30 devnull 		InputOutput,	/* class */
333 76193d7c 2003-09-30 devnull 		_x.vis,		/* visual */
334 76193d7c 2003-09-30 devnull 				/* valuemask */
335 76193d7c 2003-09-30 devnull 		CWBackPixel|CWBorderPixel|CWColormap,
336 76193d7c 2003-09-30 devnull 		&attr		/* attributes (the above aren't?!) */
337 76193d7c 2003-09-30 devnull 	);
338 ab5efca8 2003-12-02 devnull 
339 76193d7c 2003-09-30 devnull 	/*
340 76193d7c 2003-09-30 devnull 	 * Label and other properties required by ICCCCM.
341 76193d7c 2003-09-30 devnull 	 */
342 76193d7c 2003-09-30 devnull 	memset(&name, 0, sizeof name);
343 76193d7c 2003-09-30 devnull 	if(label == nil)
344 76193d7c 2003-09-30 devnull 		label = "pjw-face-here";
345 76193d7c 2003-09-30 devnull 	name.value = (uchar*)label;
346 76193d7c 2003-09-30 devnull 	name.encoding = XA_STRING;
347 76193d7c 2003-09-30 devnull 	name.format = 8;
348 be22ae2d 2004-03-26 devnull 	name.nitems = strlen((char*)name.value);
349 76193d7c 2003-09-30 devnull 
350 76193d7c 2003-09-30 devnull 	memset(&normalhint, 0, sizeof normalhint);
351 76193d7c 2003-09-30 devnull 	normalhint.flags = USSize|PMaxSize;
352 76193d7c 2003-09-30 devnull 	normalhint.max_width = WidthOfScreen(xscreen);
353 76193d7c 2003-09-30 devnull 	normalhint.max_height = HeightOfScreen(xscreen);
354 76193d7c 2003-09-30 devnull 
355 76193d7c 2003-09-30 devnull 	memset(&hint, 0, sizeof hint);
356 76193d7c 2003-09-30 devnull 	hint.flags = InputHint|StateHint;
357 76193d7c 2003-09-30 devnull 	hint.input = 1;
358 76193d7c 2003-09-30 devnull 	hint.initial_state = NormalState;
359 76193d7c 2003-09-30 devnull 
360 76193d7c 2003-09-30 devnull 	memset(&classhint, 0, sizeof classhint);
361 76193d7c 2003-09-30 devnull 	classhint.res_name = label;
362 76193d7c 2003-09-30 devnull 	classhint.res_class = label;
363 76193d7c 2003-09-30 devnull 
364 76193d7c 2003-09-30 devnull 	argv[0] = label;
365 76193d7c 2003-09-30 devnull 	argv[1] = nil;
366 76193d7c 2003-09-30 devnull 
367 76193d7c 2003-09-30 devnull 	XSetWMProperties(
368 76193d7c 2003-09-30 devnull 		_x.display,	/* display */
369 76193d7c 2003-09-30 devnull 		_x.drawable,	/* window */
370 76193d7c 2003-09-30 devnull 		&name,		/* XA_WM_NAME property */
371 76193d7c 2003-09-30 devnull 		&name,		/* XA_WM_ICON_NAME property */
372 76193d7c 2003-09-30 devnull 		argv,		/* XA_WM_COMMAND */
373 76193d7c 2003-09-30 devnull 		1,		/* argc */
374 76193d7c 2003-09-30 devnull 		&normalhint,	/* XA_WM_NORMAL_HINTS */
375 76193d7c 2003-09-30 devnull 		&hint,		/* XA_WM_HINTS */
376 76193d7c 2003-09-30 devnull 		&classhint	/* XA_WM_CLASSHINTS */
377 76193d7c 2003-09-30 devnull 	);
378 76193d7c 2003-09-30 devnull 	XFlush(_x.display);
379 4f30f3b4 2004-03-30 devnull 
380 4f30f3b4 2004-03-30 devnull 	/*
381 4f30f3b4 2004-03-30 devnull 	 * Look up clipboard atom.
382 4f30f3b4 2004-03-30 devnull 	 */
383 4f30f3b4 2004-03-30 devnull 	_x.clipboard = XInternAtom(_x.display, "CLIPBOARD", False);
384 4f30f3b4 2004-03-30 devnull 	_x.utf8string = XInternAtom(_x.display, "UTF8_STRING", False);
385 4f30f3b4 2004-03-30 devnull 	_x.targets = XInternAtom(_x.display, "TARGETS", False);
386 4f30f3b4 2004-03-30 devnull 	_x.text = XInternAtom(_x.display, "TEXT", False);
387 4f30f3b4 2004-03-30 devnull 	_x.compoundtext = XInternAtom(_x.display, "COMPOUND_TEXT", False);
388 4f30f3b4 2004-03-30 devnull 	_x.takefocus = XInternAtom(_x.display, "WM_TAKE_FOCUS", False);
389 4f30f3b4 2004-03-30 devnull 	_x.losefocus = XInternAtom(_x.display, "_9WM_LOSE_FOCUS", False);
390 4f30f3b4 2004-03-30 devnull 	_x.wmprotos = XInternAtom(_x.display, "WM_PROTOCOLS", False);
391 4f30f3b4 2004-03-30 devnull 
392 4f30f3b4 2004-03-30 devnull 	atoms[0] = _x.takefocus;
393 4f30f3b4 2004-03-30 devnull 	atoms[1] = _x.losefocus;
394 4f30f3b4 2004-03-30 devnull 	XChangeProperty(_x.display, _x.drawable, _x.wmprotos, XA_ATOM, 32,
395 4f30f3b4 2004-03-30 devnull 		PropModeReplace, (uchar*)atoms, 2);
396 4f30f3b4 2004-03-30 devnull 
397 4f30f3b4 2004-03-30 devnull 	/*
398 4f30f3b4 2004-03-30 devnull 	 * Put the window on the screen, check to see what size we actually got.
399 4f30f3b4 2004-03-30 devnull 	 */
400 4f30f3b4 2004-03-30 devnull 	XMapWindow(_x.display, _x.drawable);
401 4f30f3b4 2004-03-30 devnull 	XSync(_x.display, False);
402 76193d7c 2003-09-30 devnull 
403 4f30f3b4 2004-03-30 devnull 	if(!XGetWindowAttributes(_x.display, _x.drawable, &wattr))
404 4f30f3b4 2004-03-30 devnull 		fprint(2, "XGetWindowAttributes failed\n");
405 4f30f3b4 2004-03-30 devnull 	else if(wattr.width && wattr.height){
406 4f30f3b4 2004-03-30 devnull 		if(wattr.width != Dx(r) || wattr.height != Dy(r)){
407 4f30f3b4 2004-03-30 devnull 			r.max.x = wattr.width;
408 4f30f3b4 2004-03-30 devnull 			r.max.y = wattr.height;
409 4f30f3b4 2004-03-30 devnull 		}
410 4f30f3b4 2004-03-30 devnull 	}else
411 1ed1c638 2004-03-31 devnull 		fprint(2, "XGetWindowAttributes: bad attrs\n");
412 4f30f3b4 2004-03-30 devnull 
413 76193d7c 2003-09-30 devnull 	/*
414 76193d7c 2003-09-30 devnull 	 * Allocate our local backing store.
415 76193d7c 2003-09-30 devnull 	 */
416 76193d7c 2003-09-30 devnull 	_x.screenr = r;
417 76193d7c 2003-09-30 devnull 	_x.screenpm = XCreatePixmap(_x.display, _x.drawable, Dx(r), Dy(r), _x.depth);
418 161060a4 2003-10-11 devnull 	_x.nextscreenpm = _x.screenpm;
419 32f69c36 2003-12-11 devnull 	_x.screenimage = _xallocmemimage(r, _x.chan, _x.screenpm);
420 76193d7c 2003-09-30 devnull 
421 76193d7c 2003-09-30 devnull 	/*
422 76193d7c 2003-09-30 devnull 	 * Allocate some useful graphics contexts for the future.
423 76193d7c 2003-09-30 devnull 	 */
424 76193d7c 2003-09-30 devnull 	_x.gcfill	= xgc(_x.screenpm, FillSolid, -1);
425 76193d7c 2003-09-30 devnull 	_x.gccopy	= xgc(_x.screenpm, -1, -1);
426 76193d7c 2003-09-30 devnull 	_x.gcsimplesrc 	= xgc(_x.screenpm, FillStippled, -1);
427 76193d7c 2003-09-30 devnull 	_x.gczero	= xgc(_x.screenpm, -1, -1);
428 76193d7c 2003-09-30 devnull 	_x.gcreplsrc	= xgc(_x.screenpm, FillTiled, -1);
429 76193d7c 2003-09-30 devnull 
430 76193d7c 2003-09-30 devnull 	pmid = XCreatePixmap(_x.display, _x.drawable, 1, 1, 1);
431 76193d7c 2003-09-30 devnull 	_x.gcfill0	= xgc(pmid, FillSolid, 0);
432 76193d7c 2003-09-30 devnull 	_x.gccopy0	= xgc(pmid, -1, -1);
433 76193d7c 2003-09-30 devnull 	_x.gcsimplesrc0	= xgc(pmid, FillStippled, -1);
434 76193d7c 2003-09-30 devnull 	_x.gczero0	= xgc(pmid, -1, -1);
435 76193d7c 2003-09-30 devnull 	_x.gcreplsrc0	= xgc(pmid, FillTiled, -1);
436 76193d7c 2003-09-30 devnull 	XFreePixmap(_x.display, pmid);
437 76193d7c 2003-09-30 devnull 
438 76193d7c 2003-09-30 devnull 	/*
439 161060a4 2003-10-11 devnull 	 * Lots of display connections for various procs.
440 76193d7c 2003-09-30 devnull 	 */
441 76193d7c 2003-09-30 devnull 	_x.kbdcon	= XOpenDisplay(NULL);
442 76193d7c 2003-09-30 devnull 	_x.mousecon	= XOpenDisplay(NULL);
443 76193d7c 2003-09-30 devnull 	_x.snarfcon	= XOpenDisplay(NULL);
444 76193d7c 2003-09-30 devnull 
445 161060a4 2003-10-11 devnull 	if(0) fprint(2, "x: display=%p kbd=%p mouse=%p snarf=%p\n",
446 161060a4 2003-10-11 devnull 		_x.display, _x.kbdcon, _x.mousecon, _x.snarfcon);
447 161060a4 2003-10-11 devnull 
448 76193d7c 2003-09-30 devnull 	_x.black	= xscreen->black_pixel;
449 76193d7c 2003-09-30 devnull 	_x.white	= xscreen->white_pixel;
450 76193d7c 2003-09-30 devnull 
451 76193d7c 2003-09-30 devnull 	return _x.screenimage;
452 76193d7c 2003-09-30 devnull 
453 76193d7c 2003-09-30 devnull err0:
454 161060a4 2003-10-11 devnull fprint(2, "%r\n");
455 76193d7c 2003-09-30 devnull 	/*
456 76193d7c 2003-09-30 devnull 	 * Should do a better job of cleaning up here.
457 76193d7c 2003-09-30 devnull 	 */
458 76193d7c 2003-09-30 devnull 	XCloseDisplay(_x.display);
459 76193d7c 2003-09-30 devnull 	return nil;
460 16a70966 2003-11-23 devnull }
461 16a70966 2003-11-23 devnull 
462 16a70966 2003-11-23 devnull int
463 16a70966 2003-11-23 devnull drawsetlabel(Display *d, char *label)
464 16a70966 2003-11-23 devnull {
465 16a70966 2003-11-23 devnull 	char *argv[2];
466 16a70966 2003-11-23 devnull 	XClassHint classhint;
467 16a70966 2003-11-23 devnull 	XTextProperty name;
468 16a70966 2003-11-23 devnull 
469 16a70966 2003-11-23 devnull 	/*
470 16a70966 2003-11-23 devnull 	 * Label and other properties required by ICCCCM.
471 16a70966 2003-11-23 devnull 	 */
472 16a70966 2003-11-23 devnull 	memset(&name, 0, sizeof name);
473 16a70966 2003-11-23 devnull 	if(label == nil)
474 16a70966 2003-11-23 devnull 		label = "pjw-face-here";
475 16a70966 2003-11-23 devnull 	name.value = (uchar*)label;
476 16a70966 2003-11-23 devnull 	name.encoding = XA_STRING;
477 16a70966 2003-11-23 devnull 	name.format = 8;
478 be22ae2d 2004-03-26 devnull 	name.nitems = strlen((char*)name.value);
479 16a70966 2003-11-23 devnull 
480 16a70966 2003-11-23 devnull 	memset(&classhint, 0, sizeof classhint);
481 16a70966 2003-11-23 devnull 	classhint.res_name = label;
482 16a70966 2003-11-23 devnull 	classhint.res_class = label;
483 16a70966 2003-11-23 devnull 
484 16a70966 2003-11-23 devnull 	argv[0] = label;
485 16a70966 2003-11-23 devnull 	argv[1] = nil;
486 16a70966 2003-11-23 devnull 
487 16a70966 2003-11-23 devnull 	XSetWMProperties(
488 16a70966 2003-11-23 devnull 		_x.display,	/* display */
489 16a70966 2003-11-23 devnull 		_x.drawable,	/* window */
490 16a70966 2003-11-23 devnull 		&name,		/* XA_WM_NAME property */
491 16a70966 2003-11-23 devnull 		&name,		/* XA_WM_ICON_NAME property */
492 16a70966 2003-11-23 devnull 		argv,		/* XA_WM_COMMAND */
493 16a70966 2003-11-23 devnull 		1,		/* argc */
494 16a70966 2003-11-23 devnull 		nil,		/* XA_WM_NORMAL_HINTS */
495 16a70966 2003-11-23 devnull 		nil,		/* XA_WM_HINTS */
496 16a70966 2003-11-23 devnull 		&classhint	/* XA_WM_CLASSHINTS */
497 16a70966 2003-11-23 devnull 	);
498 16a70966 2003-11-23 devnull 	XFlush(_x.display);
499 16a70966 2003-11-23 devnull 	return 0;
500 76193d7c 2003-09-30 devnull }
501 76193d7c 2003-09-30 devnull 
502 76193d7c 2003-09-30 devnull /*
503 76193d7c 2003-09-30 devnull  * Create a GC with a particular fill style and XXX.
504 76193d7c 2003-09-30 devnull  * Disable generation of GraphicsExpose/NoExpose events in the GC.
505 76193d7c 2003-09-30 devnull  */
506 76193d7c 2003-09-30 devnull static XGC
507 76193d7c 2003-09-30 devnull xgc(XDrawable d, int fillstyle, int foreground)
508 76193d7c 2003-09-30 devnull {
509 76193d7c 2003-09-30 devnull 	XGC gc;
510 76193d7c 2003-09-30 devnull 	XGCValues v;
511 76193d7c 2003-09-30 devnull 
512 76193d7c 2003-09-30 devnull 	memset(&v, 0, sizeof v);
513 76193d7c 2003-09-30 devnull 	v.function = GXcopy;
514 76193d7c 2003-09-30 devnull 	v.graphics_exposures = False;
515 76193d7c 2003-09-30 devnull 	gc = XCreateGC(_x.display, d, GCFunction|GCGraphicsExposures, &v);
516 76193d7c 2003-09-30 devnull 	if(fillstyle != -1)
517 76193d7c 2003-09-30 devnull 		XSetFillStyle(_x.display, gc, fillstyle);
518 76193d7c 2003-09-30 devnull 	if(foreground != -1)
519 76193d7c 2003-09-30 devnull 		XSetForeground(_x.display, gc, 0);
520 76193d7c 2003-09-30 devnull 	return gc;
521 76193d7c 2003-09-30 devnull }
522 76193d7c 2003-09-30 devnull 
523 76193d7c 2003-09-30 devnull 
524 76193d7c 2003-09-30 devnull /*
525 76193d7c 2003-09-30 devnull  * Initialize map with the Plan 9 rgbv color map.
526 76193d7c 2003-09-30 devnull  */
527 76193d7c 2003-09-30 devnull static void
528 76193d7c 2003-09-30 devnull plan9cmap(void)
529 76193d7c 2003-09-30 devnull {
530 76193d7c 2003-09-30 devnull 	int r, g, b, cr, cg, cb, v, num, den, idx, v7, idx7;
531 76193d7c 2003-09-30 devnull 	static int once;
532 76193d7c 2003-09-30 devnull 
533 76193d7c 2003-09-30 devnull 	if(once)
534 76193d7c 2003-09-30 devnull 		return;
535 76193d7c 2003-09-30 devnull 	once = 1;
536 76193d7c 2003-09-30 devnull 
537 76193d7c 2003-09-30 devnull 	for(r=0; r!=4; r++)
538 76193d7c 2003-09-30 devnull 	for(g = 0; g != 4; g++)
539 76193d7c 2003-09-30 devnull 	for(b = 0; b!=4; b++)
540 76193d7c 2003-09-30 devnull 	for(v = 0; v!=4; v++){
541 76193d7c 2003-09-30 devnull 		den=r;
542 76193d7c 2003-09-30 devnull 		if(g > den)
543 76193d7c 2003-09-30 devnull 			den=g;
544 76193d7c 2003-09-30 devnull 		if(b > den)
545 76193d7c 2003-09-30 devnull 			den=b;
546 76193d7c 2003-09-30 devnull 		/* divide check -- pick grey shades */
547 76193d7c 2003-09-30 devnull 		if(den==0)
548 76193d7c 2003-09-30 devnull 			cr=cg=cb=v*17;
549 76193d7c 2003-09-30 devnull 		else {
550 76193d7c 2003-09-30 devnull 			num=17*(4*den+v);
551 76193d7c 2003-09-30 devnull 			cr=r*num/den;
552 76193d7c 2003-09-30 devnull 			cg=g*num/den;
553 76193d7c 2003-09-30 devnull 			cb=b*num/den;
554 76193d7c 2003-09-30 devnull 		}
555 76193d7c 2003-09-30 devnull 		idx = r*64 + v*16 + ((g*4 + b + v - r) & 15);
556 76193d7c 2003-09-30 devnull 		_x.map[idx].red = cr*0x0101;
557 76193d7c 2003-09-30 devnull 		_x.map[idx].green = cg*0x0101;
558 76193d7c 2003-09-30 devnull 		_x.map[idx].blue = cb*0x0101;
559 76193d7c 2003-09-30 devnull 		_x.map[idx].pixel = idx;
560 76193d7c 2003-09-30 devnull 		_x.map[idx].flags = DoRed|DoGreen|DoBlue;
561 76193d7c 2003-09-30 devnull 
562 76193d7c 2003-09-30 devnull 		v7 = v >> 1;
563 76193d7c 2003-09-30 devnull 		idx7 = r*32 + v7*16 + g*4 + b;
564 76193d7c 2003-09-30 devnull 		if((v & 1) == v7){
565 76193d7c 2003-09-30 devnull 			_x.map7to8[idx7][0] = idx;
566 76193d7c 2003-09-30 devnull 			if(den == 0) { 		/* divide check -- pick grey shades */
567 76193d7c 2003-09-30 devnull 				cr = ((255.0/7.0)*v7)+0.5;
568 76193d7c 2003-09-30 devnull 				cg = cr;
569 76193d7c 2003-09-30 devnull 				cb = cr;
570 76193d7c 2003-09-30 devnull 			}
571 76193d7c 2003-09-30 devnull 			else {
572 76193d7c 2003-09-30 devnull 				num=17*15*(4*den+v7*2)/14;
573 76193d7c 2003-09-30 devnull 				cr=r*num/den;
574 76193d7c 2003-09-30 devnull 				cg=g*num/den;
575 76193d7c 2003-09-30 devnull 				cb=b*num/den;
576 76193d7c 2003-09-30 devnull 			}
577 76193d7c 2003-09-30 devnull 			_x.map7[idx7].red = cr*0x0101;
578 76193d7c 2003-09-30 devnull 			_x.map7[idx7].green = cg*0x0101;
579 76193d7c 2003-09-30 devnull 			_x.map7[idx7].blue = cb*0x0101;
580 76193d7c 2003-09-30 devnull 			_x.map7[idx7].pixel = idx7;
581 76193d7c 2003-09-30 devnull 			_x.map7[idx7].flags = DoRed|DoGreen|DoBlue;
582 76193d7c 2003-09-30 devnull 		}
583 76193d7c 2003-09-30 devnull 		else
584 76193d7c 2003-09-30 devnull 			_x.map7to8[idx7][1] = idx;
585 76193d7c 2003-09-30 devnull 	}
586 76193d7c 2003-09-30 devnull }
587 76193d7c 2003-09-30 devnull 
588 76193d7c 2003-09-30 devnull /*
589 76193d7c 2003-09-30 devnull  * Initialize and install the rgbv color map as a private color map
590 76193d7c 2003-09-30 devnull  * for this application.  It gets the best colors when it has the
591 76193d7c 2003-09-30 devnull  * cursor focus.
592 fff395d7 2004-03-26 devnull  *
593 fff395d7 2004-03-26 devnull  * We always choose the best depth possible, but that might not
594 fff395d7 2004-03-26 devnull  * be the default depth.  On such "suboptimal" systems, we have to allocate an
595 fff395d7 2004-03-26 devnull  * empty color map anyway, according to Axel Belinfante.
596 76193d7c 2003-09-30 devnull  */
597 76193d7c 2003-09-30 devnull static int 
598 76193d7c 2003-09-30 devnull setupcmap(XWindow w)
599 76193d7c 2003-09-30 devnull {
600 76193d7c 2003-09-30 devnull 	char buf[30];
601 76193d7c 2003-09-30 devnull 	int i;
602 76193d7c 2003-09-30 devnull 	u32int p, pp;
603 76193d7c 2003-09-30 devnull 	XColor c;
604 76193d7c 2003-09-30 devnull 
605 76193d7c 2003-09-30 devnull 	if(_x.depth <= 1)
606 76193d7c 2003-09-30 devnull 		return 0;
607 76193d7c 2003-09-30 devnull 
608 76193d7c 2003-09-30 devnull 	if(_x.depth >= 24) {
609 fff395d7 2004-03-26 devnull 		if(_x.usetable == 0)
610 fff395d7 2004-03-26 devnull 			_x.cmap = XCreateColormap(_x.display, w, _x.vis, AllocNone); 
611 8ad51794 2004-03-25 devnull 
612 8ad51794 2004-03-25 devnull 		/*
613 76193d7c 2003-09-30 devnull 		 * The pixel value returned from XGetPixel needs to
614 76193d7c 2003-09-30 devnull 		 * be converted to RGB so we can call rgb2cmap()
615 76193d7c 2003-09-30 devnull 		 * to translate between 24 bit X and our color. Unfortunately,
616 76193d7c 2003-09-30 devnull 		 * the return value appears to be display server endian 
617 76193d7c 2003-09-30 devnull 		 * dependant. Therefore, we run some heuristics to later
618 76193d7c 2003-09-30 devnull 		 * determine how to mask the int value correctly.
619 76193d7c 2003-09-30 devnull 		 * Yeah, I know we can look at _x.vis->byte_order but 
620 76193d7c 2003-09-30 devnull 		 * some displays say MSB even though they run on LSB.
621 76193d7c 2003-09-30 devnull 		 * Besides, this is more anal.
622 76193d7c 2003-09-30 devnull 		 */
623 76193d7c 2003-09-30 devnull 		c = _x.map[19];	/* known to have different R, G, B values */
624 76193d7c 2003-09-30 devnull 		if(!XAllocColor(_x.display, _x.cmap, &c)){
625 76193d7c 2003-09-30 devnull 			werrstr("XAllocColor: %r");
626 76193d7c 2003-09-30 devnull 			return -1;
627 76193d7c 2003-09-30 devnull 		}
628 76193d7c 2003-09-30 devnull 		p  = c.pixel;
629 76193d7c 2003-09-30 devnull 		pp = rgb2cmap((p>>16)&0xff,(p>>8)&0xff,p&0xff);
630 76193d7c 2003-09-30 devnull 		if(pp != _x.map[19].pixel) {
631 76193d7c 2003-09-30 devnull 			/* check if endian is other way */
632 76193d7c 2003-09-30 devnull 			pp = rgb2cmap(p&0xff,(p>>8)&0xff,(p>>16)&0xff);
633 76193d7c 2003-09-30 devnull 			if(pp != _x.map[19].pixel){
634 76193d7c 2003-09-30 devnull 				werrstr("cannot detect X server byte order");
635 76193d7c 2003-09-30 devnull 				return -1;
636 76193d7c 2003-09-30 devnull 			}
637 76193d7c 2003-09-30 devnull 
638 76193d7c 2003-09-30 devnull 			switch(_x.chan){
639 76193d7c 2003-09-30 devnull 			case RGB24:
640 76193d7c 2003-09-30 devnull 				_x.chan = BGR24;
641 76193d7c 2003-09-30 devnull 				break;
642 76193d7c 2003-09-30 devnull 			case XRGB32:
643 76193d7c 2003-09-30 devnull 				_x.chan = XBGR32;
644 76193d7c 2003-09-30 devnull 				break;
645 76193d7c 2003-09-30 devnull 			default:
646 76193d7c 2003-09-30 devnull 				werrstr("cannot byteswap channel %s",
647 76193d7c 2003-09-30 devnull 					chantostr(buf, _x.chan));
648 76193d7c 2003-09-30 devnull 				break;
649 76193d7c 2003-09-30 devnull 			}
650 76193d7c 2003-09-30 devnull 		}
651 76193d7c 2003-09-30 devnull 	}else if(_x.vis->class == TrueColor || _x.vis->class == DirectColor){
652 76193d7c 2003-09-30 devnull 		/*
653 76193d7c 2003-09-30 devnull 		 * Do nothing.  We have no way to express a
654 76193d7c 2003-09-30 devnull 		 * mixed-endian 16-bit screen, so pretend they don't exist.
655 76193d7c 2003-09-30 devnull 		 */
656 fff395d7 2004-03-26 devnull 		if(_x.usetable == 0)
657 fff395d7 2004-03-26 devnull 			_x.cmap = XCreateColormap(_x.display, w, _x.vis, AllocNone);
658 76193d7c 2003-09-30 devnull 	}else if(_x.vis->class == PseudoColor){
659 76193d7c 2003-09-30 devnull 		if(_x.usetable == 0){
660 76193d7c 2003-09-30 devnull 			_x.cmap = XCreateColormap(_x.display, w, _x.vis, AllocAll); 
661 76193d7c 2003-09-30 devnull 			XStoreColors(_x.display, _x.cmap, _x.map, 256);
662 76193d7c 2003-09-30 devnull 			for(i = 0; i < 256; i++){
663 76193d7c 2003-09-30 devnull 				_x.tox11[i] = i;
664 76193d7c 2003-09-30 devnull 				_x.toplan9[i] = i;
665 76193d7c 2003-09-30 devnull 			}
666 76193d7c 2003-09-30 devnull 		}else{
667 76193d7c 2003-09-30 devnull 			for(i = 0; i < 128; i++){
668 76193d7c 2003-09-30 devnull 				c = _x.map7[i];
669 76193d7c 2003-09-30 devnull 				if(!XAllocColor(_x.display, _x.cmap, &c)){
670 76193d7c 2003-09-30 devnull 					werrstr("can't allocate colors in 7-bit map");
671 76193d7c 2003-09-30 devnull 					return -1;
672 76193d7c 2003-09-30 devnull 				}
673 76193d7c 2003-09-30 devnull 				_x.tox11[_x.map7to8[i][0]] = c.pixel;
674 76193d7c 2003-09-30 devnull 				_x.tox11[_x.map7to8[i][1]] = c.pixel;
675 76193d7c 2003-09-30 devnull 				_x.toplan9[c.pixel] = _x.map7to8[i][0];
676 76193d7c 2003-09-30 devnull 			}
677 76193d7c 2003-09-30 devnull 		}
678 76193d7c 2003-09-30 devnull 	}else{
679 76193d7c 2003-09-30 devnull 		werrstr("unsupported visual class %d", _x.vis->class);
680 76193d7c 2003-09-30 devnull 		return -1;
681 76193d7c 2003-09-30 devnull 	}
682 76193d7c 2003-09-30 devnull 	return 0;
683 76193d7c 2003-09-30 devnull }
684 76193d7c 2003-09-30 devnull 
685 76193d7c 2003-09-30 devnull void
686 76193d7c 2003-09-30 devnull flushmemscreen(Rectangle r)
687 76193d7c 2003-09-30 devnull {
688 161060a4 2003-10-11 devnull 	if(_x.nextscreenpm != _x.screenpm){
689 161060a4 2003-10-11 devnull 		qlock(&_x.screenlock);
690 161060a4 2003-10-11 devnull 		XSync(_x.display, False);
691 161060a4 2003-10-11 devnull 		XFreePixmap(_x.display, _x.screenpm);
692 161060a4 2003-10-11 devnull 		_x.screenpm = _x.nextscreenpm;
693 161060a4 2003-10-11 devnull 		qunlock(&_x.screenlock);
694 161060a4 2003-10-11 devnull 	}
695 161060a4 2003-10-11 devnull 
696 76193d7c 2003-09-30 devnull 	if(r.min.x >= r.max.x || r.min.y >= r.max.y)
697 76193d7c 2003-09-30 devnull 		return;
698 76193d7c 2003-09-30 devnull 	XCopyArea(_x.display, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
699 76193d7c 2003-09-30 devnull 		Dx(r), Dy(r), r.min.x, r.min.y);
700 76193d7c 2003-09-30 devnull 	XFlush(_x.display);
701 76193d7c 2003-09-30 devnull }
702 76193d7c 2003-09-30 devnull 
703 76193d7c 2003-09-30 devnull void
704 32f69c36 2003-12-11 devnull _xexpose(XEvent *e, XDisplay *xd)
705 76193d7c 2003-09-30 devnull {
706 76193d7c 2003-09-30 devnull 	XExposeEvent *xe;
707 76193d7c 2003-09-30 devnull 	Rectangle r;
708 76193d7c 2003-09-30 devnull 
709 161060a4 2003-10-11 devnull 	qlock(&_x.screenlock);
710 161060a4 2003-10-11 devnull 	if(_x.screenpm != _x.nextscreenpm){
711 161060a4 2003-10-11 devnull 		qunlock(&_x.screenlock);
712 161060a4 2003-10-11 devnull 		return;
713 161060a4 2003-10-11 devnull 	}
714 76193d7c 2003-09-30 devnull 	xe = (XExposeEvent*)e;
715 76193d7c 2003-09-30 devnull 	r.min.x = xe->x;
716 76193d7c 2003-09-30 devnull 	r.min.y = xe->y;
717 76193d7c 2003-09-30 devnull 	r.max.x = xe->x+xe->width;
718 76193d7c 2003-09-30 devnull 	r.max.y = xe->y+xe->height;
719 76193d7c 2003-09-30 devnull 	XCopyArea(xd, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
720 76193d7c 2003-09-30 devnull 		Dx(r), Dy(r), r.min.x, r.min.y);
721 161060a4 2003-10-11 devnull 	XSync(xd, False);
722 161060a4 2003-10-11 devnull 	qunlock(&_x.screenlock);
723 16a70966 2003-11-23 devnull }
724 16a70966 2003-11-23 devnull 
725 16a70966 2003-11-23 devnull int
726 32f69c36 2003-12-11 devnull _xdestroy(XEvent *e, XDisplay *xd)
727 16a70966 2003-11-23 devnull {
728 16a70966 2003-11-23 devnull 	XDestroyWindowEvent *xe;
729 16a70966 2003-11-23 devnull 
730 16a70966 2003-11-23 devnull 	xe = (XDestroyWindowEvent*)e;
731 16a70966 2003-11-23 devnull 	if(xe->window == _x.drawable){
732 16a70966 2003-11-23 devnull 		_x.destroyed = 1;
733 16a70966 2003-11-23 devnull 		return 1;
734 16a70966 2003-11-23 devnull 	}
735 16a70966 2003-11-23 devnull 	return 0;
736 76193d7c 2003-09-30 devnull }
737 76193d7c 2003-09-30 devnull 
738 76193d7c 2003-09-30 devnull int
739 32f69c36 2003-12-11 devnull _xconfigure(XEvent *e, XDisplay *xd)
740 76193d7c 2003-09-30 devnull {
741 161060a4 2003-10-11 devnull 	Rectangle r;
742 76193d7c 2003-09-30 devnull 	XConfigureEvent *xe = (XConfigureEvent*)e;
743 76193d7c 2003-09-30 devnull 
744 76193d7c 2003-09-30 devnull 	if(xe->width == Dx(_x.screenr) && xe->height == Dy(_x.screenr))
745 76193d7c 2003-09-30 devnull 		return 0;
746 161060a4 2003-10-11 devnull 	if(xe->width==0 || xe->height==0)
747 161060a4 2003-10-11 devnull 		fprint(2, "ignoring resize to %dx%d\n", xe->width, xe->height);
748 161060a4 2003-10-11 devnull 	r = Rect(0, 0, xe->width, xe->height);
749 161060a4 2003-10-11 devnull 	qlock(&_x.screenlock);
750 161060a4 2003-10-11 devnull 	if(_x.screenpm != _x.nextscreenpm){
751 161060a4 2003-10-11 devnull 		XCopyArea(xd, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
752 161060a4 2003-10-11 devnull 			Dx(r), Dy(r), r.min.x, r.min.y);
753 161060a4 2003-10-11 devnull 		XSync(xd, False);
754 161060a4 2003-10-11 devnull 	}
755 161060a4 2003-10-11 devnull 	qunlock(&_x.screenlock);
756 161060a4 2003-10-11 devnull 	_x.newscreenr = r;
757 d4853cf4 2003-10-01 devnull 	return 1;
758 d4853cf4 2003-10-01 devnull }
759 d4853cf4 2003-10-01 devnull 
760 d4853cf4 2003-10-01 devnull static int
761 d4853cf4 2003-10-01 devnull xreplacescreenimage(void)
762 d4853cf4 2003-10-01 devnull {
763 d4853cf4 2003-10-01 devnull 	Memimage *m;
764 d4853cf4 2003-10-01 devnull 	XDrawable pixmap;
765 d4853cf4 2003-10-01 devnull 	Rectangle r;
766 d4853cf4 2003-10-01 devnull 
767 d4853cf4 2003-10-01 devnull 	r = _x.newscreenr;
768 d4853cf4 2003-10-01 devnull 	if(eqrect(_x.screenr, r))
769 d4853cf4 2003-10-01 devnull 		return 0;
770 d4853cf4 2003-10-01 devnull 
771 d4853cf4 2003-10-01 devnull 	pixmap = XCreatePixmap(_x.display, _x.drawable, Dx(r), Dy(r), _x.depth);
772 32f69c36 2003-12-11 devnull 	m = _xallocmemimage(r, _x.chan, pixmap);
773 161060a4 2003-10-11 devnull 	if(_x.nextscreenpm != _x.screenpm)
774 161060a4 2003-10-11 devnull 		XFreePixmap(_x.display, _x.nextscreenpm);
775 161060a4 2003-10-11 devnull 	_x.nextscreenpm = pixmap;
776 d4853cf4 2003-10-01 devnull 	_x.screenr = r;
777 76193d7c 2003-09-30 devnull 	_drawreplacescreenimage(m);
778 76193d7c 2003-09-30 devnull 	return 1;
779 76193d7c 2003-09-30 devnull }
780 76193d7c 2003-09-30 devnull