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 be36ff68 2004-04-29 devnull 
 14 be36ff68 2004-04-29 devnull char *winsize;
 15 be36ff68 2004-04-29 devnull static int parsewinsize(char*, Rectangle*, int*);
 16 76193d7c 2003-09-30 devnull 
 17 76193d7c 2003-09-30 devnull static Memimage	*xattach(char*);
 18 76193d7c 2003-09-30 devnull static void	plan9cmap(void);
 19 76193d7c 2003-09-30 devnull static int	setupcmap(XWindow);
 20 d4853cf4 2003-10-01 devnull static int	xreplacescreenimage(void);
 21 76193d7c 2003-09-30 devnull static XGC	xgc(XDrawable, int, int);
 22 6325e032 2004-03-26 devnull static Image	*getimage0(Display*, Image*);
 23 76193d7c 2003-09-30 devnull 
 24 76193d7c 2003-09-30 devnull Xprivate _x;
 25 76193d7c 2003-09-30 devnull 
 26 76193d7c 2003-09-30 devnull Display*
 27 76193d7c 2003-09-30 devnull _initdisplay(void (*error)(Display*, char*), char *label)
 28 76193d7c 2003-09-30 devnull {
 29 76193d7c 2003-09-30 devnull 	Display *d;
 30 76193d7c 2003-09-30 devnull 	Memimage *m;
 31 76193d7c 2003-09-30 devnull 
 32 f7012583 2003-11-25 devnull 	/*
 33 f7012583 2003-11-25 devnull 	 * This rfork(RFNOTEG) isn't exactly right,
 34 f7012583 2003-11-25 devnull 	 * but we need some way to signal window 
 35 f7012583 2003-11-25 devnull 	 * closes.  Right now we post a hangup
 36 f7012583 2003-11-25 devnull 	 * note to the note group, which kills a whole
 37 f7012583 2003-11-25 devnull 	 * lot more than just the current program
 38 f7012583 2003-11-25 devnull 	 * if we don't do this.
 39 f7012583 2003-11-25 devnull 	 */
 40 3151bc58 2004-04-21 devnull 	/*
 41 3151bc58 2004-04-21 devnull 	 * Actually, I don't know what I changed but
 42 3151bc58 2004-04-21 devnull 	 * this appears not to be necessary anymore.
 43 3151bc58 2004-04-21 devnull 	 * I'll regret this probably.
 44 f7012583 2003-11-25 devnull 	rfork(RFNOTEG);
 45 3151bc58 2004-04-21 devnull 	*/
 46 76193d7c 2003-09-30 devnull 	memimageinit();
 47 76193d7c 2003-09-30 devnull 
 48 76193d7c 2003-09-30 devnull 	d = mallocz(sizeof(Display), 1);
 49 76193d7c 2003-09-30 devnull 	if(d == nil)
 50 76193d7c 2003-09-30 devnull 		return nil;
 51 76193d7c 2003-09-30 devnull 
 52 76193d7c 2003-09-30 devnull 	d->buf = malloc(16000+5);
 53 76193d7c 2003-09-30 devnull 	d->obuf = malloc(16000);
 54 76193d7c 2003-09-30 devnull 	if(d->buf == nil || d->obuf == nil){
 55 76193d7c 2003-09-30 devnull 		free(d->buf);
 56 76193d7c 2003-09-30 devnull 		free(d->obuf);
 57 76193d7c 2003-09-30 devnull 		free(d);
 58 76193d7c 2003-09-30 devnull 		return nil;
 59 76193d7c 2003-09-30 devnull 	}
 60 76193d7c 2003-09-30 devnull 	d->bufsize = 16000;
 61 76193d7c 2003-09-30 devnull 	d->obufsize = 16000;
 62 76193d7c 2003-09-30 devnull 	d->bufp = d->buf;
 63 76193d7c 2003-09-30 devnull 	d->obufp = d->obuf;
 64 76193d7c 2003-09-30 devnull 
 65 76193d7c 2003-09-30 devnull 	m = xattach(label);
 66 76193d7c 2003-09-30 devnull 	if(m == nil){
 67 76193d7c 2003-09-30 devnull 		free(d);
 68 76193d7c 2003-09-30 devnull 		return nil;
 69 76193d7c 2003-09-30 devnull 	}
 70 76193d7c 2003-09-30 devnull 
 71 76193d7c 2003-09-30 devnull 	d->error = error;
 72 76193d7c 2003-09-30 devnull 	_initdisplaymemimage(d, m);
 73 670dd11a 2005-03-18 devnull 	d->image = getimage0(d, 0);
 74 670dd11a 2005-03-18 devnull 	
 75 76193d7c 2003-09-30 devnull 	return d;
 76 76193d7c 2003-09-30 devnull }
 77 76193d7c 2003-09-30 devnull 
 78 76193d7c 2003-09-30 devnull static Image*
 79 6325e032 2004-03-26 devnull getimage0(Display *d, Image *image)
 80 76193d7c 2003-09-30 devnull {
 81 be22ae2d 2004-03-26 devnull 	char info[12*12+1];
 82 be22ae2d 2004-03-26 devnull 	uchar *a;
 83 76193d7c 2003-09-30 devnull 	int n;
 84 6325e032 2004-03-26 devnull 	extern int _freeimage1(Image*);
 85 76193d7c 2003-09-30 devnull 
 86 6325e032 2004-03-26 devnull 	/*
 87 6325e032 2004-03-26 devnull 	 * If there's an old screen, it has id 0.  The 'J' request below
 88 6325e032 2004-03-26 devnull 	 * will try to install the new screen as id 0, so the old one 
 89 6325e032 2004-03-26 devnull 	 * must be freed first.
 90 6325e032 2004-03-26 devnull 	 */
 91 6325e032 2004-03-26 devnull 	if(image){
 92 6325e032 2004-03-26 devnull 		_freeimage1(image);
 93 6325e032 2004-03-26 devnull 		memset(image, 0, sizeof(Image));
 94 6325e032 2004-03-26 devnull 	}
 95 6325e032 2004-03-26 devnull 
 96 76193d7c 2003-09-30 devnull 	a = bufimage(d, 2);
 97 76193d7c 2003-09-30 devnull 	a[0] = 'J';
 98 76193d7c 2003-09-30 devnull 	a[1] = 'I';
 99 76193d7c 2003-09-30 devnull 	if(flushimage(d, 0) < 0){
100 76193d7c 2003-09-30 devnull 		fprint(2, "cannot read screen info: %r\n");
101 76193d7c 2003-09-30 devnull 		abort();
102 76193d7c 2003-09-30 devnull 	}
103 161060a4 2003-10-11 devnull 
104 76193d7c 2003-09-30 devnull 	n = _drawmsgread(d, info, sizeof info);
105 76193d7c 2003-09-30 devnull 	if(n != 12*12){
106 76193d7c 2003-09-30 devnull 		fprint(2, "short screen info\n");
107 76193d7c 2003-09-30 devnull 		abort();
108 76193d7c 2003-09-30 devnull 	}
109 76193d7c 2003-09-30 devnull 
110 6325e032 2004-03-26 devnull 	if(image == nil){
111 6325e032 2004-03-26 devnull 		image = mallocz(sizeof(Image), 1);
112 6325e032 2004-03-26 devnull 		if(image == nil){
113 6325e032 2004-03-26 devnull 			fprint(2, "cannot allocate image: %r\n");
114 6325e032 2004-03-26 devnull 			abort();
115 6325e032 2004-03-26 devnull 		}
116 6325e032 2004-03-26 devnull 	}
117 6325e032 2004-03-26 devnull 
118 76193d7c 2003-09-30 devnull 	image->display = d;
119 76193d7c 2003-09-30 devnull 	image->id = 0;
120 76193d7c 2003-09-30 devnull 	image->chan = strtochan(info+2*12);
121 76193d7c 2003-09-30 devnull 	image->depth = chantodepth(image->chan);
122 76193d7c 2003-09-30 devnull 	image->repl = atoi(info+3*12);
123 76193d7c 2003-09-30 devnull 	image->r.min.x = atoi(info+4*12);
124 76193d7c 2003-09-30 devnull 	image->r.min.y = atoi(info+5*12);
125 76193d7c 2003-09-30 devnull 	image->r.max.x = atoi(info+6*12);
126 76193d7c 2003-09-30 devnull 	image->r.max.y = atoi(info+7*12);
127 76193d7c 2003-09-30 devnull 	image->clipr.min.x = atoi(info+8*12);
128 76193d7c 2003-09-30 devnull 	image->clipr.min.y = atoi(info+9*12);
129 76193d7c 2003-09-30 devnull 	image->clipr.max.x = atoi(info+10*12);
130 76193d7c 2003-09-30 devnull 	image->clipr.max.y = atoi(info+11*12);
131 76193d7c 2003-09-30 devnull 	return image;
132 76193d7c 2003-09-30 devnull }
133 76193d7c 2003-09-30 devnull 
134 76193d7c 2003-09-30 devnull int
135 76193d7c 2003-09-30 devnull getwindow(Display *d, int ref)
136 76193d7c 2003-09-30 devnull {
137 76193d7c 2003-09-30 devnull 	Image *i;
138 6325e032 2004-03-26 devnull 	Image *oi;
139 76193d7c 2003-09-30 devnull 
140 16a70966 2003-11-23 devnull 	if(_x.destroyed)
141 16a70966 2003-11-23 devnull 		postnote(PNGROUP, getpgrp(), "hangup");
142 d4853cf4 2003-10-01 devnull 	if(xreplacescreenimage() == 0)
143 d4853cf4 2003-10-01 devnull 		return 0;
144 6325e032 2004-03-26 devnull 
145 6325e032 2004-03-26 devnull 	/*
146 6325e032 2004-03-26 devnull 	 * Libdraw promises not to change the value of "screen",
147 6325e032 2004-03-26 devnull 	 * so we have to reuse the image structure
148 6325e032 2004-03-26 devnull 	 * memory we already have.
149 6325e032 2004-03-26 devnull 	 */
150 670dd11a 2005-03-18 devnull 	oi = d->image;
151 6325e032 2004-03-26 devnull 	i = getimage0(d, oi);
152 670dd11a 2005-03-18 devnull 	d->image = i;
153 6325e032 2004-03-26 devnull 	// fprint(2, "getwindow %p -> %p\n", oi, i);
154 670dd11a 2005-03-18 devnull 
155 670dd11a 2005-03-18 devnull 	_screen = allocscreen(i, d->white, 0);
156 670dd11a 2005-03-18 devnull 	_freeimage1(screen);
157 670dd11a 2005-03-18 devnull 	screen = _allocwindow(screen, _screen, i->r, ref, DWhite);
158 670dd11a 2005-03-18 devnull 	d->screenimage = screen;
159 76193d7c 2003-09-30 devnull 	return 0;
160 76193d7c 2003-09-30 devnull }
161 76193d7c 2003-09-30 devnull 
162 76193d7c 2003-09-30 devnull static int
163 76193d7c 2003-09-30 devnull xerror(XDisplay *d, XErrorEvent *e)
164 76193d7c 2003-09-30 devnull {
165 76193d7c 2003-09-30 devnull 	char buf[200];
166 76193d7c 2003-09-30 devnull 
167 af78a4cd 2004-03-02 devnull 	if(e->request_code == 42) /* XSetInputFocus */
168 af78a4cd 2004-03-02 devnull 		return 0;
169 6b2d0fd9 2004-03-26 devnull 	if(e->request_code == 18) /* XChangeProperty */
170 6b2d0fd9 2004-03-26 devnull 		return 0;
171 6b2d0fd9 2004-03-26 devnull 
172 161060a4 2003-10-11 devnull 	print("X error: error_code=%d, request_code=%d, minor=%d disp=%p\n",
173 161060a4 2003-10-11 devnull 		e->error_code, e->request_code, e->minor_code, d);
174 76193d7c 2003-09-30 devnull 	XGetErrorText(d, e->error_code, buf, sizeof buf);
175 76193d7c 2003-09-30 devnull 	print("%s\n", buf);
176 76193d7c 2003-09-30 devnull 	return 0;
177 76193d7c 2003-09-30 devnull }
178 76193d7c 2003-09-30 devnull 
179 76193d7c 2003-09-30 devnull static int
180 76193d7c 2003-09-30 devnull xioerror(XDisplay *d)
181 76193d7c 2003-09-30 devnull {
182 115d4c0a 2004-05-03 devnull 	//print("X I/O error\n");
183 115d4c0a 2004-05-03 devnull 	sysfatal("X I/O error\n");
184 16a70966 2003-11-23 devnull 	abort();
185 76193d7c 2003-09-30 devnull 	return -1;
186 76193d7c 2003-09-30 devnull }
187 76193d7c 2003-09-30 devnull 
188 76193d7c 2003-09-30 devnull 
189 76193d7c 2003-09-30 devnull static Memimage*
190 76193d7c 2003-09-30 devnull xattach(char *label)
191 76193d7c 2003-09-30 devnull {
192 76193d7c 2003-09-30 devnull 	char *argv[2], *disp;
193 dea58c42 2004-06-17 devnull 	int i, havemin, height, mask, n, width, x, xrootid, y;
194 76193d7c 2003-09-30 devnull 	Rectangle r;
195 76193d7c 2003-09-30 devnull 	XClassHint classhint;
196 76193d7c 2003-09-30 devnull 	XDrawable pmid;
197 76193d7c 2003-09-30 devnull 	XPixmapFormatValues *pfmt;
198 76193d7c 2003-09-30 devnull 	XScreen *xscreen;
199 76193d7c 2003-09-30 devnull 	XSetWindowAttributes attr;
200 76193d7c 2003-09-30 devnull 	XSizeHints normalhint;
201 76193d7c 2003-09-30 devnull 	XTextProperty name;
202 76193d7c 2003-09-30 devnull 	XVisualInfo xvi;
203 76193d7c 2003-09-30 devnull 	XWindow xrootwin;
204 ab5efca8 2003-12-02 devnull 	XWindowAttributes wattr;
205 76193d7c 2003-09-30 devnull 	XWMHints hint;
206 4f30f3b4 2004-03-30 devnull 	Atom atoms[2];
207 76193d7c 2003-09-30 devnull 
208 76193d7c 2003-09-30 devnull 	/*
209 d4853cf4 2003-10-01 devnull 	if(XInitThreads() == 0){
210 d4853cf4 2003-10-01 devnull 		fprint(2, "XInitThreads failed\n");
211 d4853cf4 2003-10-01 devnull 		abort();
212 d4853cf4 2003-10-01 devnull 	}
213 d4853cf4 2003-10-01 devnull 	*/
214 d4853cf4 2003-10-01 devnull 
215 d4853cf4 2003-10-01 devnull 	/*
216 76193d7c 2003-09-30 devnull 	 * Connect to X server.
217 76193d7c 2003-09-30 devnull 	 */
218 76193d7c 2003-09-30 devnull 	_x.display = XOpenDisplay(NULL);
219 76193d7c 2003-09-30 devnull 	if(_x.display == nil){
220 76193d7c 2003-09-30 devnull 		disp = getenv("DISPLAY");
221 76193d7c 2003-09-30 devnull 		werrstr("XOpenDisplay %s: %r", disp ? disp : ":0");
222 76193d7c 2003-09-30 devnull 		free(disp);
223 76193d7c 2003-09-30 devnull 		return nil;
224 76193d7c 2003-09-30 devnull 	}
225 76193d7c 2003-09-30 devnull 	XSetErrorHandler(xerror);
226 76193d7c 2003-09-30 devnull 	XSetIOErrorHandler(xioerror);
227 76193d7c 2003-09-30 devnull 	xrootid = DefaultScreen(_x.display);
228 76193d7c 2003-09-30 devnull 	xrootwin = DefaultRootWindow(_x.display);
229 76193d7c 2003-09-30 devnull 
230 76193d7c 2003-09-30 devnull 	/* 
231 76193d7c 2003-09-30 devnull 	 * Figure out underlying screen format.
232 76193d7c 2003-09-30 devnull 	 */
233 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 16, TrueColor, &xvi)
234 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 16, DirectColor, &xvi)){
235 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
236 76193d7c 2003-09-30 devnull 		_x.depth = 16;
237 76193d7c 2003-09-30 devnull 	}
238 76193d7c 2003-09-30 devnull 	else
239 161060a4 2003-10-11 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 15, TrueColor, &xvi)
240 161060a4 2003-10-11 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 15, DirectColor, &xvi)){
241 161060a4 2003-10-11 devnull 		_x.vis = xvi.visual;
242 161060a4 2003-10-11 devnull 		_x.depth = 15;
243 161060a4 2003-10-11 devnull 	}
244 161060a4 2003-10-11 devnull 	else
245 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 24, TrueColor, &xvi)
246 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 24, DirectColor, &xvi)){
247 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
248 76193d7c 2003-09-30 devnull 		_x.depth = 24;
249 76193d7c 2003-09-30 devnull 	}
250 76193d7c 2003-09-30 devnull 	else
251 76193d7c 2003-09-30 devnull 	if(XMatchVisualInfo(_x.display, xrootid, 8, PseudoColor, &xvi)
252 76193d7c 2003-09-30 devnull 	|| XMatchVisualInfo(_x.display, xrootid, 8, StaticColor, &xvi)){
253 76193d7c 2003-09-30 devnull 		if(_x.depth > 8){
254 76193d7c 2003-09-30 devnull 			werrstr("can't deal with colormapped depth %d screens",
255 76193d7c 2003-09-30 devnull 				_x.depth);
256 76193d7c 2003-09-30 devnull 			goto err0;
257 76193d7c 2003-09-30 devnull 		}
258 76193d7c 2003-09-30 devnull 		_x.vis = xvi.visual;
259 76193d7c 2003-09-30 devnull 		_x.depth = 8;
260 76193d7c 2003-09-30 devnull 	}
261 76193d7c 2003-09-30 devnull 	else{
262 8ad51794 2004-03-25 devnull 		_x.depth = DefaultDepth(_x.display, xrootid);
263 76193d7c 2003-09-30 devnull 		if(_x.depth != 8){
264 76193d7c 2003-09-30 devnull 			werrstr("can't understand depth %d screen", _x.depth);
265 76193d7c 2003-09-30 devnull 			goto err0;
266 76193d7c 2003-09-30 devnull 		}
267 76193d7c 2003-09-30 devnull 		_x.vis = DefaultVisual(_x.display, xrootid);
268 76193d7c 2003-09-30 devnull 	}
269 76193d7c 2003-09-30 devnull 
270 8ad51794 2004-03-25 devnull 	if(DefaultDepth(_x.display, xrootid) == _x.depth)
271 8ad51794 2004-03-25 devnull 		_x.usetable = 1;
272 8ad51794 2004-03-25 devnull 
273 76193d7c 2003-09-30 devnull 	/*
274 76193d7c 2003-09-30 devnull 	 * _x.depth is only the number of significant pixel bits,
275 76193d7c 2003-09-30 devnull 	 * not the total number of pixel bits.  We need to walk the
276 76193d7c 2003-09-30 devnull 	 * display list to find how many actual bits are used
277 76193d7c 2003-09-30 devnull 	 * per pixel.
278 76193d7c 2003-09-30 devnull 	 */
279 76193d7c 2003-09-30 devnull 	_x.chan = 0;
280 76193d7c 2003-09-30 devnull 	pfmt = XListPixmapFormats(_x.display, &n);
281 76193d7c 2003-09-30 devnull 	for(i=0; i<n; i++){
282 76193d7c 2003-09-30 devnull 		if(pfmt[i].depth == _x.depth){
283 76193d7c 2003-09-30 devnull 			switch(pfmt[i].bits_per_pixel){
284 76193d7c 2003-09-30 devnull 			case 1:	/* untested */
285 76193d7c 2003-09-30 devnull 				_x.chan = GREY1;
286 76193d7c 2003-09-30 devnull 				break;
287 76193d7c 2003-09-30 devnull 			case 2:	/* untested */
288 76193d7c 2003-09-30 devnull 				_x.chan = GREY2;
289 76193d7c 2003-09-30 devnull 				break;
290 76193d7c 2003-09-30 devnull 			case 4:	/* untested */
291 76193d7c 2003-09-30 devnull 				_x.chan = GREY4;
292 76193d7c 2003-09-30 devnull 				break;
293 76193d7c 2003-09-30 devnull 			case 8:
294 76193d7c 2003-09-30 devnull 				_x.chan = CMAP8;
295 161060a4 2003-10-11 devnull 				break;
296 161060a4 2003-10-11 devnull 			case 15:
297 161060a4 2003-10-11 devnull 				_x.chan = RGB15;
298 76193d7c 2003-09-30 devnull 				break;
299 76193d7c 2003-09-30 devnull 			case 16: /* how to tell RGB15? */
300 76193d7c 2003-09-30 devnull 				_x.chan = RGB16;
301 76193d7c 2003-09-30 devnull 				break;
302 76193d7c 2003-09-30 devnull 			case 24: /* untested (impossible?) */
303 76193d7c 2003-09-30 devnull 				_x.chan = RGB24;
304 76193d7c 2003-09-30 devnull 				break;
305 76193d7c 2003-09-30 devnull 			case 32:
306 76193d7c 2003-09-30 devnull 				_x.chan = XRGB32;
307 76193d7c 2003-09-30 devnull 				break;
308 76193d7c 2003-09-30 devnull 			}
309 76193d7c 2003-09-30 devnull 		}
310 76193d7c 2003-09-30 devnull 	}
311 76193d7c 2003-09-30 devnull 	if(_x.chan == 0){
312 76193d7c 2003-09-30 devnull 		werrstr("could not determine screen pixel format");
313 76193d7c 2003-09-30 devnull 		goto err0;
314 76193d7c 2003-09-30 devnull 	}
315 76193d7c 2003-09-30 devnull 
316 76193d7c 2003-09-30 devnull 	/*
317 76193d7c 2003-09-30 devnull 	 * Set up color map if necessary.
318 76193d7c 2003-09-30 devnull 	 */
319 76193d7c 2003-09-30 devnull 	xscreen = DefaultScreenOfDisplay(_x.display);
320 76193d7c 2003-09-30 devnull 	_x.cmap = DefaultColormapOfScreen(xscreen);
321 76193d7c 2003-09-30 devnull 	if(_x.vis->class != StaticColor){
322 76193d7c 2003-09-30 devnull 		plan9cmap();
323 76193d7c 2003-09-30 devnull 		setupcmap(xrootwin);
324 76193d7c 2003-09-30 devnull 	}
325 76193d7c 2003-09-30 devnull 
326 76193d7c 2003-09-30 devnull 	/*
327 76193d7c 2003-09-30 devnull 	 * We get to choose the initial rectangle size.
328 76193d7c 2003-09-30 devnull 	 * This is arbitrary.  In theory we should read the
329 76193d7c 2003-09-30 devnull 	 * command line and allow the traditional X options.
330 76193d7c 2003-09-30 devnull 	 */
331 dea58c42 2004-06-17 devnull 	mask = 0;
332 503f601c 2004-06-17 devnull 	x = 0;
333 503f601c 2004-06-17 devnull 	y = 0;
334 be36ff68 2004-04-29 devnull 	if(winsize){
335 be36ff68 2004-04-29 devnull 		if(parsewinsize(winsize, &r, &havemin) < 0)
336 be36ff68 2004-04-29 devnull 			sysfatal("%r");
337 be36ff68 2004-04-29 devnull 	}else{
338 dea58c42 2004-06-17 devnull 		/*
339 dea58c42 2004-06-17 devnull 		 * Parse the various X resources.  Thanks to Peter Canning.
340 dea58c42 2004-06-17 devnull 		 */
341 dea58c42 2004-06-17 devnull 		char *screen_resources, *display_resources, *geom, 
342 dea58c42 2004-06-17 devnull 			*geomrestype, *home, *file;
343 dea58c42 2004-06-17 devnull 		XrmDatabase database;
344 dea58c42 2004-06-17 devnull 		XrmValue geomres;
345 dea58c42 2004-06-17 devnull 
346 dea58c42 2004-06-17 devnull 		database = XrmGetDatabase(_x.display);
347 dea58c42 2004-06-17 devnull 		screen_resources = XScreenResourceString(xscreen);
348 dea58c42 2004-06-17 devnull 		if(screen_resources != nil){
349 dea58c42 2004-06-17 devnull 			XrmCombineDatabase(XrmGetStringDatabase(screen_resources), &database, False);
350 dea58c42 2004-06-17 devnull 			XFree(screen_resources);
351 dea58c42 2004-06-17 devnull 		}
352 dea58c42 2004-06-17 devnull 
353 dea58c42 2004-06-17 devnull 		display_resources = XResourceManagerString(_x.display);
354 dea58c42 2004-06-17 devnull 		if(display_resources == nil){
355 c8b6342d 2005-01-13 devnull 			home = getenv("HOME");
356 e915fe7c 2004-06-24 devnull 			if(home!=nil && (file=smprint("%s/.Xdefaults", home)) != nil){
357 dea58c42 2004-06-17 devnull 				XrmCombineFileDatabase(file, &database, False);
358 dea58c42 2004-06-17 devnull 				free(file);
359 dea58c42 2004-06-17 devnull 			}
360 dea58c42 2004-06-17 devnull 			free(home);
361 dea58c42 2004-06-17 devnull 		}else
362 dea58c42 2004-06-17 devnull 			XrmCombineDatabase(XrmGetStringDatabase(display_resources), &database, False);
363 dea58c42 2004-06-17 devnull 
364 dea58c42 2004-06-17 devnull 		geom = smprint("%s.geometry", label);
365 dea58c42 2004-06-17 devnull 		if(geom && XrmGetResource(database, geom, nil, &geomrestype, &geomres))
366 1818ce0f 2005-01-04 devnull 			mask = XParseGeometry(geomres.addr, &x, &y, (uint*)&width, (uint*)&height);
367 dea58c42 2004-06-17 devnull 		free(geom);
368 dea58c42 2004-06-17 devnull 
369 dea58c42 2004-06-17 devnull 		if((mask & WidthValue) && (mask & HeightValue)){
370 dea58c42 2004-06-17 devnull 			r = Rect(0, 0, width, height);
371 dea58c42 2004-06-17 devnull 		}else{
372 dea58c42 2004-06-17 devnull 			r = Rect(0, 0, WidthOfScreen(xscreen)*3/4,
373 dea58c42 2004-06-17 devnull 					HeightOfScreen(xscreen)*3/4);
374 dea58c42 2004-06-17 devnull 			if(Dx(r) > Dy(r)*3/2)
375 dea58c42 2004-06-17 devnull 				r.max.x = r.min.x + Dy(r)*3/2;
376 dea58c42 2004-06-17 devnull 			if(Dy(r) > Dx(r)*3/2)
377 dea58c42 2004-06-17 devnull 				r.max.y = r.min.y + Dx(r)*3/2;
378 dea58c42 2004-06-17 devnull 		}
379 dea58c42 2004-06-17 devnull 		if(mask & XNegative){
380 dea58c42 2004-06-17 devnull 			x += WidthOfScreen(xscreen);
381 dea58c42 2004-06-17 devnull 		}
382 dea58c42 2004-06-17 devnull 		if(mask & YNegative){
383 dea58c42 2004-06-17 devnull 			y += HeightOfScreen(xscreen);
384 dea58c42 2004-06-17 devnull 		}
385 be36ff68 2004-04-29 devnull 		havemin = 0;
386 be36ff68 2004-04-29 devnull 	}
387 76193d7c 2003-09-30 devnull 
388 76193d7c 2003-09-30 devnull 	memset(&attr, 0, sizeof attr);
389 76193d7c 2003-09-30 devnull 	attr.colormap = _x.cmap;
390 161060a4 2003-10-11 devnull 	attr.background_pixel = ~0;
391 76193d7c 2003-09-30 devnull 	attr.border_pixel = 0;
392 76193d7c 2003-09-30 devnull 	_x.drawable = XCreateWindow(
393 76193d7c 2003-09-30 devnull 		_x.display,	/* display */
394 76193d7c 2003-09-30 devnull 		xrootwin,	/* parent */
395 dea58c42 2004-06-17 devnull 		x,		/* x */
396 dea58c42 2004-06-17 devnull 		y,		/* y */
397 76193d7c 2003-09-30 devnull 		Dx(r),		/* width */
398 76193d7c 2003-09-30 devnull 	 	Dy(r),		/* height */
399 76193d7c 2003-09-30 devnull 		0,		/* border width */
400 8ad51794 2004-03-25 devnull 		_x.depth,	/* depth */
401 76193d7c 2003-09-30 devnull 		InputOutput,	/* class */
402 76193d7c 2003-09-30 devnull 		_x.vis,		/* visual */
403 76193d7c 2003-09-30 devnull 				/* valuemask */
404 76193d7c 2003-09-30 devnull 		CWBackPixel|CWBorderPixel|CWColormap,
405 76193d7c 2003-09-30 devnull 		&attr		/* attributes (the above aren't?!) */
406 76193d7c 2003-09-30 devnull 	);
407 ab5efca8 2003-12-02 devnull 
408 76193d7c 2003-09-30 devnull 	/*
409 76193d7c 2003-09-30 devnull 	 * Label and other properties required by ICCCCM.
410 76193d7c 2003-09-30 devnull 	 */
411 76193d7c 2003-09-30 devnull 	memset(&name, 0, sizeof name);
412 76193d7c 2003-09-30 devnull 	if(label == nil)
413 76193d7c 2003-09-30 devnull 		label = "pjw-face-here";
414 76193d7c 2003-09-30 devnull 	name.value = (uchar*)label;
415 76193d7c 2003-09-30 devnull 	name.encoding = XA_STRING;
416 76193d7c 2003-09-30 devnull 	name.format = 8;
417 be22ae2d 2004-03-26 devnull 	name.nitems = strlen((char*)name.value);
418 76193d7c 2003-09-30 devnull 
419 76193d7c 2003-09-30 devnull 	memset(&normalhint, 0, sizeof normalhint);
420 be36ff68 2004-04-29 devnull 	normalhint.flags = PSize|PMaxSize;
421 be36ff68 2004-04-29 devnull 	if(winsize){
422 be36ff68 2004-04-29 devnull 		normalhint.flags &= ~PSize;
423 be36ff68 2004-04-29 devnull 		normalhint.flags |= USSize;
424 be36ff68 2004-04-29 devnull 		normalhint.width = Dx(r);
425 be36ff68 2004-04-29 devnull 		normalhint.height = Dy(r);
426 dea58c42 2004-06-17 devnull 	}else{
427 dea58c42 2004-06-17 devnull 		if((mask & WidthValue) && (mask & HeightValue)){
428 dea58c42 2004-06-17 devnull 			normalhint.flags &= ~PSize;
429 dea58c42 2004-06-17 devnull 			normalhint.flags |= USSize;
430 dea58c42 2004-06-17 devnull 			normalhint.width = width;
431 dea58c42 2004-06-17 devnull 			normalhint.height = height;
432 dea58c42 2004-06-17 devnull 		}
433 dea58c42 2004-06-17 devnull 		if((mask & WidthValue) && (mask & HeightValue)){
434 dea58c42 2004-06-17 devnull 			normalhint.flags |= USPosition;
435 dea58c42 2004-06-17 devnull 			normalhint.x = x;
436 dea58c42 2004-06-17 devnull 			normalhint.y = y;
437 dea58c42 2004-06-17 devnull 		}
438 be36ff68 2004-04-29 devnull 	}
439 be36ff68 2004-04-29 devnull 
440 76193d7c 2003-09-30 devnull 	normalhint.max_width = WidthOfScreen(xscreen);
441 76193d7c 2003-09-30 devnull 	normalhint.max_height = HeightOfScreen(xscreen);
442 76193d7c 2003-09-30 devnull 
443 76193d7c 2003-09-30 devnull 	memset(&hint, 0, sizeof hint);
444 76193d7c 2003-09-30 devnull 	hint.flags = InputHint|StateHint;
445 76193d7c 2003-09-30 devnull 	hint.input = 1;
446 76193d7c 2003-09-30 devnull 	hint.initial_state = NormalState;
447 76193d7c 2003-09-30 devnull 
448 76193d7c 2003-09-30 devnull 	memset(&classhint, 0, sizeof classhint);
449 76193d7c 2003-09-30 devnull 	classhint.res_name = label;
450 76193d7c 2003-09-30 devnull 	classhint.res_class = label;
451 76193d7c 2003-09-30 devnull 
452 76193d7c 2003-09-30 devnull 	argv[0] = label;
453 76193d7c 2003-09-30 devnull 	argv[1] = nil;
454 76193d7c 2003-09-30 devnull 
455 76193d7c 2003-09-30 devnull 	XSetWMProperties(
456 76193d7c 2003-09-30 devnull 		_x.display,	/* display */
457 76193d7c 2003-09-30 devnull 		_x.drawable,	/* window */
458 76193d7c 2003-09-30 devnull 		&name,		/* XA_WM_NAME property */
459 76193d7c 2003-09-30 devnull 		&name,		/* XA_WM_ICON_NAME property */
460 76193d7c 2003-09-30 devnull 		argv,		/* XA_WM_COMMAND */
461 76193d7c 2003-09-30 devnull 		1,		/* argc */
462 76193d7c 2003-09-30 devnull 		&normalhint,	/* XA_WM_NORMAL_HINTS */
463 76193d7c 2003-09-30 devnull 		&hint,		/* XA_WM_HINTS */
464 76193d7c 2003-09-30 devnull 		&classhint	/* XA_WM_CLASSHINTS */
465 76193d7c 2003-09-30 devnull 	);
466 76193d7c 2003-09-30 devnull 	XFlush(_x.display);
467 be36ff68 2004-04-29 devnull 
468 be36ff68 2004-04-29 devnull 	if(havemin){
469 be36ff68 2004-04-29 devnull 		XWindowChanges ch;
470 4f30f3b4 2004-03-30 devnull 
471 be36ff68 2004-04-29 devnull 		memset(&ch, 0, sizeof ch);
472 be36ff68 2004-04-29 devnull 		ch.x = r.min.x;
473 be36ff68 2004-04-29 devnull 		ch.y = r.min.y;
474 be36ff68 2004-04-29 devnull 		XConfigureWindow(_x.display, _x.drawable, CWX|CWY, &ch);
475 57d26136 2005-01-26 devnull 		/*
476 57d26136 2005-01-26 devnull 		 * Must pretend origin is 0,0 for X.
477 57d26136 2005-01-26 devnull 		 */
478 57d26136 2005-01-26 devnull 		r = Rect(0,0,Dx(r),Dy(r));
479 be36ff68 2004-04-29 devnull 	}
480 4f30f3b4 2004-03-30 devnull 	/*
481 4f30f3b4 2004-03-30 devnull 	 * Look up clipboard atom.
482 4f30f3b4 2004-03-30 devnull 	 */
483 4f30f3b4 2004-03-30 devnull 	_x.clipboard = XInternAtom(_x.display, "CLIPBOARD", False);
484 4f30f3b4 2004-03-30 devnull 	_x.utf8string = XInternAtom(_x.display, "UTF8_STRING", False);
485 4f30f3b4 2004-03-30 devnull 	_x.targets = XInternAtom(_x.display, "TARGETS", False);
486 4f30f3b4 2004-03-30 devnull 	_x.text = XInternAtom(_x.display, "TEXT", False);
487 4f30f3b4 2004-03-30 devnull 	_x.compoundtext = XInternAtom(_x.display, "COMPOUND_TEXT", False);
488 4f30f3b4 2004-03-30 devnull 	_x.takefocus = XInternAtom(_x.display, "WM_TAKE_FOCUS", False);
489 4f30f3b4 2004-03-30 devnull 	_x.losefocus = XInternAtom(_x.display, "_9WM_LOSE_FOCUS", False);
490 4f30f3b4 2004-03-30 devnull 	_x.wmprotos = XInternAtom(_x.display, "WM_PROTOCOLS", False);
491 4f30f3b4 2004-03-30 devnull 
492 4f30f3b4 2004-03-30 devnull 	atoms[0] = _x.takefocus;
493 4f30f3b4 2004-03-30 devnull 	atoms[1] = _x.losefocus;
494 4f30f3b4 2004-03-30 devnull 	XChangeProperty(_x.display, _x.drawable, _x.wmprotos, XA_ATOM, 32,
495 4f30f3b4 2004-03-30 devnull 		PropModeReplace, (uchar*)atoms, 2);
496 4f30f3b4 2004-03-30 devnull 
497 4f30f3b4 2004-03-30 devnull 	/*
498 4f30f3b4 2004-03-30 devnull 	 * Put the window on the screen, check to see what size we actually got.
499 4f30f3b4 2004-03-30 devnull 	 */
500 4f30f3b4 2004-03-30 devnull 	XMapWindow(_x.display, _x.drawable);
501 4f30f3b4 2004-03-30 devnull 	XSync(_x.display, False);
502 76193d7c 2003-09-30 devnull 
503 4f30f3b4 2004-03-30 devnull 	if(!XGetWindowAttributes(_x.display, _x.drawable, &wattr))
504 4f30f3b4 2004-03-30 devnull 		fprint(2, "XGetWindowAttributes failed\n");
505 4f30f3b4 2004-03-30 devnull 	else if(wattr.width && wattr.height){
506 4f30f3b4 2004-03-30 devnull 		if(wattr.width != Dx(r) || wattr.height != Dy(r)){
507 4f30f3b4 2004-03-30 devnull 			r.max.x = wattr.width;
508 4f30f3b4 2004-03-30 devnull 			r.max.y = wattr.height;
509 4f30f3b4 2004-03-30 devnull 		}
510 4f30f3b4 2004-03-30 devnull 	}else
511 1ed1c638 2004-03-31 devnull 		fprint(2, "XGetWindowAttributes: bad attrs\n");
512 4f30f3b4 2004-03-30 devnull 
513 76193d7c 2003-09-30 devnull 	/*
514 76193d7c 2003-09-30 devnull 	 * Allocate our local backing store.
515 76193d7c 2003-09-30 devnull 	 */
516 76193d7c 2003-09-30 devnull 	_x.screenr = r;
517 76193d7c 2003-09-30 devnull 	_x.screenpm = XCreatePixmap(_x.display, _x.drawable, Dx(r), Dy(r), _x.depth);
518 161060a4 2003-10-11 devnull 	_x.nextscreenpm = _x.screenpm;
519 32f69c36 2003-12-11 devnull 	_x.screenimage = _xallocmemimage(r, _x.chan, _x.screenpm);
520 76193d7c 2003-09-30 devnull 
521 76193d7c 2003-09-30 devnull 	/*
522 76193d7c 2003-09-30 devnull 	 * Allocate some useful graphics contexts for the future.
523 76193d7c 2003-09-30 devnull 	 */
524 76193d7c 2003-09-30 devnull 	_x.gcfill	= xgc(_x.screenpm, FillSolid, -1);
525 76193d7c 2003-09-30 devnull 	_x.gccopy	= xgc(_x.screenpm, -1, -1);
526 76193d7c 2003-09-30 devnull 	_x.gcsimplesrc 	= xgc(_x.screenpm, FillStippled, -1);
527 76193d7c 2003-09-30 devnull 	_x.gczero	= xgc(_x.screenpm, -1, -1);
528 76193d7c 2003-09-30 devnull 	_x.gcreplsrc	= xgc(_x.screenpm, FillTiled, -1);
529 76193d7c 2003-09-30 devnull 
530 76193d7c 2003-09-30 devnull 	pmid = XCreatePixmap(_x.display, _x.drawable, 1, 1, 1);
531 76193d7c 2003-09-30 devnull 	_x.gcfill0	= xgc(pmid, FillSolid, 0);
532 76193d7c 2003-09-30 devnull 	_x.gccopy0	= xgc(pmid, -1, -1);
533 76193d7c 2003-09-30 devnull 	_x.gcsimplesrc0	= xgc(pmid, FillStippled, -1);
534 76193d7c 2003-09-30 devnull 	_x.gczero0	= xgc(pmid, -1, -1);
535 76193d7c 2003-09-30 devnull 	_x.gcreplsrc0	= xgc(pmid, FillTiled, -1);
536 76193d7c 2003-09-30 devnull 	XFreePixmap(_x.display, pmid);
537 76193d7c 2003-09-30 devnull 
538 76193d7c 2003-09-30 devnull 	/*
539 161060a4 2003-10-11 devnull 	 * Lots of display connections for various procs.
540 76193d7c 2003-09-30 devnull 	 */
541 76193d7c 2003-09-30 devnull 	_x.kbdcon	= XOpenDisplay(NULL);
542 76193d7c 2003-09-30 devnull 	_x.mousecon	= XOpenDisplay(NULL);
543 76193d7c 2003-09-30 devnull 	_x.snarfcon	= XOpenDisplay(NULL);
544 76193d7c 2003-09-30 devnull 
545 161060a4 2003-10-11 devnull 	if(0) fprint(2, "x: display=%p kbd=%p mouse=%p snarf=%p\n",
546 161060a4 2003-10-11 devnull 		_x.display, _x.kbdcon, _x.mousecon, _x.snarfcon);
547 161060a4 2003-10-11 devnull 
548 76193d7c 2003-09-30 devnull 	return _x.screenimage;
549 76193d7c 2003-09-30 devnull 
550 76193d7c 2003-09-30 devnull err0:
551 161060a4 2003-10-11 devnull fprint(2, "%r\n");
552 76193d7c 2003-09-30 devnull 	/*
553 76193d7c 2003-09-30 devnull 	 * Should do a better job of cleaning up here.
554 76193d7c 2003-09-30 devnull 	 */
555 76193d7c 2003-09-30 devnull 	XCloseDisplay(_x.display);
556 76193d7c 2003-09-30 devnull 	return nil;
557 16a70966 2003-11-23 devnull }
558 16a70966 2003-11-23 devnull 
559 16a70966 2003-11-23 devnull int
560 1818ce0f 2005-01-04 devnull drawsetlabel(char *label)
561 16a70966 2003-11-23 devnull {
562 16a70966 2003-11-23 devnull 	XTextProperty name;
563 16a70966 2003-11-23 devnull 
564 16a70966 2003-11-23 devnull 	/*
565 16a70966 2003-11-23 devnull 	 * Label and other properties required by ICCCCM.
566 16a70966 2003-11-23 devnull 	 */
567 16a70966 2003-11-23 devnull 	memset(&name, 0, sizeof name);
568 16a70966 2003-11-23 devnull 	if(label == nil)
569 16a70966 2003-11-23 devnull 		label = "pjw-face-here";
570 16a70966 2003-11-23 devnull 	name.value = (uchar*)label;
571 16a70966 2003-11-23 devnull 	name.encoding = XA_STRING;
572 16a70966 2003-11-23 devnull 	name.format = 8;
573 be22ae2d 2004-03-26 devnull 	name.nitems = strlen((char*)name.value);
574 16a70966 2003-11-23 devnull 
575 16a70966 2003-11-23 devnull 	XSetWMProperties(
576 16a70966 2003-11-23 devnull 		_x.display,	/* display */
577 16a70966 2003-11-23 devnull 		_x.drawable,	/* window */
578 16a70966 2003-11-23 devnull 		&name,		/* XA_WM_NAME property */
579 16a70966 2003-11-23 devnull 		&name,		/* XA_WM_ICON_NAME property */
580 931ba0b7 2005-01-07 devnull 		nil,		/* XA_WM_COMMAND */
581 931ba0b7 2005-01-07 devnull 		0,		/* argc */
582 16a70966 2003-11-23 devnull 		nil,		/* XA_WM_NORMAL_HINTS */
583 16a70966 2003-11-23 devnull 		nil,		/* XA_WM_HINTS */
584 931ba0b7 2005-01-07 devnull 		nil	/* XA_WM_CLASSHINTS */
585 16a70966 2003-11-23 devnull 	);
586 16a70966 2003-11-23 devnull 	XFlush(_x.display);
587 16a70966 2003-11-23 devnull 	return 0;
588 76193d7c 2003-09-30 devnull }
589 76193d7c 2003-09-30 devnull 
590 76193d7c 2003-09-30 devnull /*
591 76193d7c 2003-09-30 devnull  * Create a GC with a particular fill style and XXX.
592 76193d7c 2003-09-30 devnull  * Disable generation of GraphicsExpose/NoExpose events in the GC.
593 76193d7c 2003-09-30 devnull  */
594 76193d7c 2003-09-30 devnull static XGC
595 76193d7c 2003-09-30 devnull xgc(XDrawable d, int fillstyle, int foreground)
596 76193d7c 2003-09-30 devnull {
597 76193d7c 2003-09-30 devnull 	XGC gc;
598 76193d7c 2003-09-30 devnull 	XGCValues v;
599 76193d7c 2003-09-30 devnull 
600 76193d7c 2003-09-30 devnull 	memset(&v, 0, sizeof v);
601 76193d7c 2003-09-30 devnull 	v.function = GXcopy;
602 76193d7c 2003-09-30 devnull 	v.graphics_exposures = False;
603 76193d7c 2003-09-30 devnull 	gc = XCreateGC(_x.display, d, GCFunction|GCGraphicsExposures, &v);
604 76193d7c 2003-09-30 devnull 	if(fillstyle != -1)
605 76193d7c 2003-09-30 devnull 		XSetFillStyle(_x.display, gc, fillstyle);
606 76193d7c 2003-09-30 devnull 	if(foreground != -1)
607 76193d7c 2003-09-30 devnull 		XSetForeground(_x.display, gc, 0);
608 76193d7c 2003-09-30 devnull 	return gc;
609 76193d7c 2003-09-30 devnull }
610 76193d7c 2003-09-30 devnull 
611 76193d7c 2003-09-30 devnull 
612 76193d7c 2003-09-30 devnull /*
613 76193d7c 2003-09-30 devnull  * Initialize map with the Plan 9 rgbv color map.
614 76193d7c 2003-09-30 devnull  */
615 76193d7c 2003-09-30 devnull static void
616 76193d7c 2003-09-30 devnull plan9cmap(void)
617 76193d7c 2003-09-30 devnull {
618 76193d7c 2003-09-30 devnull 	int r, g, b, cr, cg, cb, v, num, den, idx, v7, idx7;
619 76193d7c 2003-09-30 devnull 	static int once;
620 76193d7c 2003-09-30 devnull 
621 76193d7c 2003-09-30 devnull 	if(once)
622 76193d7c 2003-09-30 devnull 		return;
623 76193d7c 2003-09-30 devnull 	once = 1;
624 76193d7c 2003-09-30 devnull 
625 76193d7c 2003-09-30 devnull 	for(r=0; r!=4; r++)
626 76193d7c 2003-09-30 devnull 	for(g = 0; g != 4; g++)
627 76193d7c 2003-09-30 devnull 	for(b = 0; b!=4; b++)
628 76193d7c 2003-09-30 devnull 	for(v = 0; v!=4; v++){
629 76193d7c 2003-09-30 devnull 		den=r;
630 76193d7c 2003-09-30 devnull 		if(g > den)
631 76193d7c 2003-09-30 devnull 			den=g;
632 76193d7c 2003-09-30 devnull 		if(b > den)
633 76193d7c 2003-09-30 devnull 			den=b;
634 76193d7c 2003-09-30 devnull 		/* divide check -- pick grey shades */
635 76193d7c 2003-09-30 devnull 		if(den==0)
636 76193d7c 2003-09-30 devnull 			cr=cg=cb=v*17;
637 76193d7c 2003-09-30 devnull 		else {
638 76193d7c 2003-09-30 devnull 			num=17*(4*den+v);
639 76193d7c 2003-09-30 devnull 			cr=r*num/den;
640 76193d7c 2003-09-30 devnull 			cg=g*num/den;
641 76193d7c 2003-09-30 devnull 			cb=b*num/den;
642 76193d7c 2003-09-30 devnull 		}
643 76193d7c 2003-09-30 devnull 		idx = r*64 + v*16 + ((g*4 + b + v - r) & 15);
644 76193d7c 2003-09-30 devnull 		_x.map[idx].red = cr*0x0101;
645 76193d7c 2003-09-30 devnull 		_x.map[idx].green = cg*0x0101;
646 76193d7c 2003-09-30 devnull 		_x.map[idx].blue = cb*0x0101;
647 76193d7c 2003-09-30 devnull 		_x.map[idx].pixel = idx;
648 76193d7c 2003-09-30 devnull 		_x.map[idx].flags = DoRed|DoGreen|DoBlue;
649 76193d7c 2003-09-30 devnull 
650 76193d7c 2003-09-30 devnull 		v7 = v >> 1;
651 76193d7c 2003-09-30 devnull 		idx7 = r*32 + v7*16 + g*4 + b;
652 76193d7c 2003-09-30 devnull 		if((v & 1) == v7){
653 76193d7c 2003-09-30 devnull 			_x.map7to8[idx7][0] = idx;
654 76193d7c 2003-09-30 devnull 			if(den == 0) { 		/* divide check -- pick grey shades */
655 76193d7c 2003-09-30 devnull 				cr = ((255.0/7.0)*v7)+0.5;
656 76193d7c 2003-09-30 devnull 				cg = cr;
657 76193d7c 2003-09-30 devnull 				cb = cr;
658 76193d7c 2003-09-30 devnull 			}
659 76193d7c 2003-09-30 devnull 			else {
660 76193d7c 2003-09-30 devnull 				num=17*15*(4*den+v7*2)/14;
661 76193d7c 2003-09-30 devnull 				cr=r*num/den;
662 76193d7c 2003-09-30 devnull 				cg=g*num/den;
663 76193d7c 2003-09-30 devnull 				cb=b*num/den;
664 76193d7c 2003-09-30 devnull 			}
665 76193d7c 2003-09-30 devnull 			_x.map7[idx7].red = cr*0x0101;
666 76193d7c 2003-09-30 devnull 			_x.map7[idx7].green = cg*0x0101;
667 76193d7c 2003-09-30 devnull 			_x.map7[idx7].blue = cb*0x0101;
668 76193d7c 2003-09-30 devnull 			_x.map7[idx7].pixel = idx7;
669 76193d7c 2003-09-30 devnull 			_x.map7[idx7].flags = DoRed|DoGreen|DoBlue;
670 76193d7c 2003-09-30 devnull 		}
671 76193d7c 2003-09-30 devnull 		else
672 76193d7c 2003-09-30 devnull 			_x.map7to8[idx7][1] = idx;
673 76193d7c 2003-09-30 devnull 	}
674 76193d7c 2003-09-30 devnull }
675 76193d7c 2003-09-30 devnull 
676 76193d7c 2003-09-30 devnull /*
677 76193d7c 2003-09-30 devnull  * Initialize and install the rgbv color map as a private color map
678 76193d7c 2003-09-30 devnull  * for this application.  It gets the best colors when it has the
679 76193d7c 2003-09-30 devnull  * cursor focus.
680 fff395d7 2004-03-26 devnull  *
681 fff395d7 2004-03-26 devnull  * We always choose the best depth possible, but that might not
682 fff395d7 2004-03-26 devnull  * be the default depth.  On such "suboptimal" systems, we have to allocate an
683 fff395d7 2004-03-26 devnull  * empty color map anyway, according to Axel Belinfante.
684 76193d7c 2003-09-30 devnull  */
685 76193d7c 2003-09-30 devnull static int 
686 76193d7c 2003-09-30 devnull setupcmap(XWindow w)
687 76193d7c 2003-09-30 devnull {
688 76193d7c 2003-09-30 devnull 	char buf[30];
689 76193d7c 2003-09-30 devnull 	int i;
690 76193d7c 2003-09-30 devnull 	u32int p, pp;
691 76193d7c 2003-09-30 devnull 	XColor c;
692 76193d7c 2003-09-30 devnull 
693 76193d7c 2003-09-30 devnull 	if(_x.depth <= 1)
694 76193d7c 2003-09-30 devnull 		return 0;
695 76193d7c 2003-09-30 devnull 
696 76193d7c 2003-09-30 devnull 	if(_x.depth >= 24) {
697 fff395d7 2004-03-26 devnull 		if(_x.usetable == 0)
698 fff395d7 2004-03-26 devnull 			_x.cmap = XCreateColormap(_x.display, w, _x.vis, AllocNone); 
699 8ad51794 2004-03-25 devnull 
700 8ad51794 2004-03-25 devnull 		/*
701 76193d7c 2003-09-30 devnull 		 * The pixel value returned from XGetPixel needs to
702 76193d7c 2003-09-30 devnull 		 * be converted to RGB so we can call rgb2cmap()
703 76193d7c 2003-09-30 devnull 		 * to translate between 24 bit X and our color. Unfortunately,
704 76193d7c 2003-09-30 devnull 		 * the return value appears to be display server endian 
705 76193d7c 2003-09-30 devnull 		 * dependant. Therefore, we run some heuristics to later
706 76193d7c 2003-09-30 devnull 		 * determine how to mask the int value correctly.
707 76193d7c 2003-09-30 devnull 		 * Yeah, I know we can look at _x.vis->byte_order but 
708 76193d7c 2003-09-30 devnull 		 * some displays say MSB even though they run on LSB.
709 76193d7c 2003-09-30 devnull 		 * Besides, this is more anal.
710 76193d7c 2003-09-30 devnull 		 */
711 76193d7c 2003-09-30 devnull 		c = _x.map[19];	/* known to have different R, G, B values */
712 76193d7c 2003-09-30 devnull 		if(!XAllocColor(_x.display, _x.cmap, &c)){
713 76193d7c 2003-09-30 devnull 			werrstr("XAllocColor: %r");
714 76193d7c 2003-09-30 devnull 			return -1;
715 76193d7c 2003-09-30 devnull 		}
716 76193d7c 2003-09-30 devnull 		p  = c.pixel;
717 76193d7c 2003-09-30 devnull 		pp = rgb2cmap((p>>16)&0xff,(p>>8)&0xff,p&0xff);
718 76193d7c 2003-09-30 devnull 		if(pp != _x.map[19].pixel) {
719 76193d7c 2003-09-30 devnull 			/* check if endian is other way */
720 76193d7c 2003-09-30 devnull 			pp = rgb2cmap(p&0xff,(p>>8)&0xff,(p>>16)&0xff);
721 76193d7c 2003-09-30 devnull 			if(pp != _x.map[19].pixel){
722 76193d7c 2003-09-30 devnull 				werrstr("cannot detect X server byte order");
723 76193d7c 2003-09-30 devnull 				return -1;
724 76193d7c 2003-09-30 devnull 			}
725 76193d7c 2003-09-30 devnull 
726 76193d7c 2003-09-30 devnull 			switch(_x.chan){
727 76193d7c 2003-09-30 devnull 			case RGB24:
728 76193d7c 2003-09-30 devnull 				_x.chan = BGR24;
729 76193d7c 2003-09-30 devnull 				break;
730 76193d7c 2003-09-30 devnull 			case XRGB32:
731 76193d7c 2003-09-30 devnull 				_x.chan = XBGR32;
732 76193d7c 2003-09-30 devnull 				break;
733 76193d7c 2003-09-30 devnull 			default:
734 76193d7c 2003-09-30 devnull 				werrstr("cannot byteswap channel %s",
735 76193d7c 2003-09-30 devnull 					chantostr(buf, _x.chan));
736 76193d7c 2003-09-30 devnull 				break;
737 76193d7c 2003-09-30 devnull 			}
738 76193d7c 2003-09-30 devnull 		}
739 76193d7c 2003-09-30 devnull 	}else if(_x.vis->class == TrueColor || _x.vis->class == DirectColor){
740 76193d7c 2003-09-30 devnull 		/*
741 76193d7c 2003-09-30 devnull 		 * Do nothing.  We have no way to express a
742 76193d7c 2003-09-30 devnull 		 * mixed-endian 16-bit screen, so pretend they don't exist.
743 76193d7c 2003-09-30 devnull 		 */
744 fff395d7 2004-03-26 devnull 		if(_x.usetable == 0)
745 fff395d7 2004-03-26 devnull 			_x.cmap = XCreateColormap(_x.display, w, _x.vis, AllocNone);
746 76193d7c 2003-09-30 devnull 	}else if(_x.vis->class == PseudoColor){
747 76193d7c 2003-09-30 devnull 		if(_x.usetable == 0){
748 76193d7c 2003-09-30 devnull 			_x.cmap = XCreateColormap(_x.display, w, _x.vis, AllocAll); 
749 76193d7c 2003-09-30 devnull 			XStoreColors(_x.display, _x.cmap, _x.map, 256);
750 76193d7c 2003-09-30 devnull 			for(i = 0; i < 256; i++){
751 76193d7c 2003-09-30 devnull 				_x.tox11[i] = i;
752 76193d7c 2003-09-30 devnull 				_x.toplan9[i] = i;
753 76193d7c 2003-09-30 devnull 			}
754 76193d7c 2003-09-30 devnull 		}else{
755 76193d7c 2003-09-30 devnull 			for(i = 0; i < 128; i++){
756 76193d7c 2003-09-30 devnull 				c = _x.map7[i];
757 76193d7c 2003-09-30 devnull 				if(!XAllocColor(_x.display, _x.cmap, &c)){
758 76193d7c 2003-09-30 devnull 					werrstr("can't allocate colors in 7-bit map");
759 76193d7c 2003-09-30 devnull 					return -1;
760 76193d7c 2003-09-30 devnull 				}
761 76193d7c 2003-09-30 devnull 				_x.tox11[_x.map7to8[i][0]] = c.pixel;
762 76193d7c 2003-09-30 devnull 				_x.tox11[_x.map7to8[i][1]] = c.pixel;
763 76193d7c 2003-09-30 devnull 				_x.toplan9[c.pixel] = _x.map7to8[i][0];
764 76193d7c 2003-09-30 devnull 			}
765 76193d7c 2003-09-30 devnull 		}
766 76193d7c 2003-09-30 devnull 	}else{
767 76193d7c 2003-09-30 devnull 		werrstr("unsupported visual class %d", _x.vis->class);
768 76193d7c 2003-09-30 devnull 		return -1;
769 76193d7c 2003-09-30 devnull 	}
770 76193d7c 2003-09-30 devnull 	return 0;
771 76193d7c 2003-09-30 devnull }
772 76193d7c 2003-09-30 devnull 
773 76193d7c 2003-09-30 devnull void
774 1818ce0f 2005-01-04 devnull _flushmemscreen(Rectangle r)
775 76193d7c 2003-09-30 devnull {
776 161060a4 2003-10-11 devnull 	if(_x.nextscreenpm != _x.screenpm){
777 161060a4 2003-10-11 devnull 		qlock(&_x.screenlock);
778 161060a4 2003-10-11 devnull 		XSync(_x.display, False);
779 161060a4 2003-10-11 devnull 		XFreePixmap(_x.display, _x.screenpm);
780 161060a4 2003-10-11 devnull 		_x.screenpm = _x.nextscreenpm;
781 161060a4 2003-10-11 devnull 		qunlock(&_x.screenlock);
782 161060a4 2003-10-11 devnull 	}
783 161060a4 2003-10-11 devnull 
784 76193d7c 2003-09-30 devnull 	if(r.min.x >= r.max.x || r.min.y >= r.max.y)
785 76193d7c 2003-09-30 devnull 		return;
786 76193d7c 2003-09-30 devnull 	XCopyArea(_x.display, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
787 76193d7c 2003-09-30 devnull 		Dx(r), Dy(r), r.min.x, r.min.y);
788 76193d7c 2003-09-30 devnull 	XFlush(_x.display);
789 76193d7c 2003-09-30 devnull }
790 76193d7c 2003-09-30 devnull 
791 76193d7c 2003-09-30 devnull void
792 32f69c36 2003-12-11 devnull _xexpose(XEvent *e, XDisplay *xd)
793 76193d7c 2003-09-30 devnull {
794 76193d7c 2003-09-30 devnull 	XExposeEvent *xe;
795 76193d7c 2003-09-30 devnull 	Rectangle r;
796 76193d7c 2003-09-30 devnull 
797 161060a4 2003-10-11 devnull 	qlock(&_x.screenlock);
798 161060a4 2003-10-11 devnull 	if(_x.screenpm != _x.nextscreenpm){
799 161060a4 2003-10-11 devnull 		qunlock(&_x.screenlock);
800 161060a4 2003-10-11 devnull 		return;
801 161060a4 2003-10-11 devnull 	}
802 76193d7c 2003-09-30 devnull 	xe = (XExposeEvent*)e;
803 76193d7c 2003-09-30 devnull 	r.min.x = xe->x;
804 76193d7c 2003-09-30 devnull 	r.min.y = xe->y;
805 76193d7c 2003-09-30 devnull 	r.max.x = xe->x+xe->width;
806 76193d7c 2003-09-30 devnull 	r.max.y = xe->y+xe->height;
807 76193d7c 2003-09-30 devnull 	XCopyArea(xd, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
808 76193d7c 2003-09-30 devnull 		Dx(r), Dy(r), r.min.x, r.min.y);
809 161060a4 2003-10-11 devnull 	XSync(xd, False);
810 161060a4 2003-10-11 devnull 	qunlock(&_x.screenlock);
811 16a70966 2003-11-23 devnull }
812 16a70966 2003-11-23 devnull 
813 16a70966 2003-11-23 devnull int
814 32f69c36 2003-12-11 devnull _xdestroy(XEvent *e, XDisplay *xd)
815 16a70966 2003-11-23 devnull {
816 16a70966 2003-11-23 devnull 	XDestroyWindowEvent *xe;
817 16a70966 2003-11-23 devnull 
818 16a70966 2003-11-23 devnull 	xe = (XDestroyWindowEvent*)e;
819 16a70966 2003-11-23 devnull 	if(xe->window == _x.drawable){
820 16a70966 2003-11-23 devnull 		_x.destroyed = 1;
821 16a70966 2003-11-23 devnull 		return 1;
822 16a70966 2003-11-23 devnull 	}
823 16a70966 2003-11-23 devnull 	return 0;
824 76193d7c 2003-09-30 devnull }
825 76193d7c 2003-09-30 devnull 
826 76193d7c 2003-09-30 devnull int
827 32f69c36 2003-12-11 devnull _xconfigure(XEvent *e, XDisplay *xd)
828 76193d7c 2003-09-30 devnull {
829 161060a4 2003-10-11 devnull 	Rectangle r;
830 76193d7c 2003-09-30 devnull 	XConfigureEvent *xe = (XConfigureEvent*)e;
831 76193d7c 2003-09-30 devnull 
832 76193d7c 2003-09-30 devnull 	if(xe->width == Dx(_x.screenr) && xe->height == Dy(_x.screenr))
833 76193d7c 2003-09-30 devnull 		return 0;
834 161060a4 2003-10-11 devnull 	if(xe->width==0 || xe->height==0)
835 161060a4 2003-10-11 devnull 		fprint(2, "ignoring resize to %dx%d\n", xe->width, xe->height);
836 161060a4 2003-10-11 devnull 	r = Rect(0, 0, xe->width, xe->height);
837 161060a4 2003-10-11 devnull 	qlock(&_x.screenlock);
838 161060a4 2003-10-11 devnull 	if(_x.screenpm != _x.nextscreenpm){
839 161060a4 2003-10-11 devnull 		XCopyArea(xd, _x.screenpm, _x.drawable, _x.gccopy, r.min.x, r.min.y,
840 161060a4 2003-10-11 devnull 			Dx(r), Dy(r), r.min.x, r.min.y);
841 161060a4 2003-10-11 devnull 		XSync(xd, False);
842 161060a4 2003-10-11 devnull 	}
843 161060a4 2003-10-11 devnull 	qunlock(&_x.screenlock);
844 161060a4 2003-10-11 devnull 	_x.newscreenr = r;
845 d4853cf4 2003-10-01 devnull 	return 1;
846 d4853cf4 2003-10-01 devnull }
847 d4853cf4 2003-10-01 devnull 
848 d4853cf4 2003-10-01 devnull static int
849 d4853cf4 2003-10-01 devnull xreplacescreenimage(void)
850 d4853cf4 2003-10-01 devnull {
851 d4853cf4 2003-10-01 devnull 	Memimage *m;
852 d4853cf4 2003-10-01 devnull 	XDrawable pixmap;
853 d4853cf4 2003-10-01 devnull 	Rectangle r;
854 d4853cf4 2003-10-01 devnull 
855 d4853cf4 2003-10-01 devnull 	r = _x.newscreenr;
856 d4853cf4 2003-10-01 devnull 	if(eqrect(_x.screenr, r))
857 d4853cf4 2003-10-01 devnull 		return 0;
858 d4853cf4 2003-10-01 devnull 
859 d4853cf4 2003-10-01 devnull 	pixmap = XCreatePixmap(_x.display, _x.drawable, Dx(r), Dy(r), _x.depth);
860 32f69c36 2003-12-11 devnull 	m = _xallocmemimage(r, _x.chan, pixmap);
861 161060a4 2003-10-11 devnull 	if(_x.nextscreenpm != _x.screenpm)
862 161060a4 2003-10-11 devnull 		XFreePixmap(_x.display, _x.nextscreenpm);
863 161060a4 2003-10-11 devnull 	_x.nextscreenpm = pixmap;
864 d4853cf4 2003-10-01 devnull 	_x.screenr = r;
865 76193d7c 2003-09-30 devnull 	_drawreplacescreenimage(m);
866 76193d7c 2003-09-30 devnull 	return 1;
867 76193d7c 2003-09-30 devnull }
868 76193d7c 2003-09-30 devnull 
869 be36ff68 2004-04-29 devnull static int
870 be36ff68 2004-04-29 devnull parsewinsize(char *s, Rectangle *r, int *havemin)
871 be36ff68 2004-04-29 devnull {
872 be36ff68 2004-04-29 devnull 	char c, *os;
873 be36ff68 2004-04-29 devnull 	int i, j, k, l;
874 be36ff68 2004-04-29 devnull 
875 be36ff68 2004-04-29 devnull 	os = s;
876 be36ff68 2004-04-29 devnull 	*havemin = 0;
877 be36ff68 2004-04-29 devnull 	*r = Rect(0,0,0,0);
878 be36ff68 2004-04-29 devnull 	if(!isdigit(*s))
879 be36ff68 2004-04-29 devnull 		goto oops;
880 be36ff68 2004-04-29 devnull 	i = strtol(s, &s, 0);
881 be36ff68 2004-04-29 devnull 	if(*s == 'x'){
882 be36ff68 2004-04-29 devnull 		s++;
883 be36ff68 2004-04-29 devnull 		if(!isdigit(*s))
884 be36ff68 2004-04-29 devnull 			goto oops;
885 be36ff68 2004-04-29 devnull 		j = strtol(s, &s, 0);
886 be36ff68 2004-04-29 devnull 		r->max.x = i;
887 be36ff68 2004-04-29 devnull 		r->max.y = j;
888 be36ff68 2004-04-29 devnull 		if(*s == 0)
889 be36ff68 2004-04-29 devnull 			return 0;
890 be36ff68 2004-04-29 devnull 		if(*s != '@')
891 be36ff68 2004-04-29 devnull 			goto oops;
892 be36ff68 2004-04-29 devnull 
893 be36ff68 2004-04-29 devnull 		s++;
894 be36ff68 2004-04-29 devnull 		if(!isdigit(*s))
895 be36ff68 2004-04-29 devnull 			goto oops;
896 be36ff68 2004-04-29 devnull 		i = strtol(s, &s, 0);
897 be36ff68 2004-04-29 devnull 		if(*s != ',' && *s != ' ')
898 be36ff68 2004-04-29 devnull 			goto oops;
899 be36ff68 2004-04-29 devnull 		s++;
900 be36ff68 2004-04-29 devnull 		if(!isdigit(*s))
901 be36ff68 2004-04-29 devnull 			goto oops;
902 be36ff68 2004-04-29 devnull 		j = strtol(s, &s, 0);
903 be36ff68 2004-04-29 devnull 		if(*s != 0)
904 be36ff68 2004-04-29 devnull 			goto oops;
905 be36ff68 2004-04-29 devnull 		*r = rectaddpt(*r, Pt(i,j));
906 be36ff68 2004-04-29 devnull 		*havemin = 1;
907 be36ff68 2004-04-29 devnull 		return 0;
908 be36ff68 2004-04-29 devnull 	}
909 be36ff68 2004-04-29 devnull 
910 be36ff68 2004-04-29 devnull 	c = *s;
911 be36ff68 2004-04-29 devnull 	if(c != ' ' && c != ',')
912 be36ff68 2004-04-29 devnull 		goto oops;
913 be36ff68 2004-04-29 devnull 	s++;
914 be36ff68 2004-04-29 devnull 	if(!isdigit(*s))
915 be36ff68 2004-04-29 devnull 		goto oops;
916 be36ff68 2004-04-29 devnull 	j = strtol(s, &s, 0);
917 be36ff68 2004-04-29 devnull 	if(*s != c)
918 be36ff68 2004-04-29 devnull 		goto oops;
919 be36ff68 2004-04-29 devnull 	s++;
920 be36ff68 2004-04-29 devnull 	if(!isdigit(*s))
921 be36ff68 2004-04-29 devnull 		goto oops;
922 be36ff68 2004-04-29 devnull 	k = strtol(s, &s, 0);
923 be36ff68 2004-04-29 devnull 	if(*s != c)
924 be36ff68 2004-04-29 devnull 		goto oops;
925 be36ff68 2004-04-29 devnull 	s++;
926 be36ff68 2004-04-29 devnull 	if(!isdigit(*s))
927 be36ff68 2004-04-29 devnull 		goto oops;
928 be36ff68 2004-04-29 devnull 	l = strtol(s, &s, 0);
929 be36ff68 2004-04-29 devnull 	if(*s != 0)
930 be36ff68 2004-04-29 devnull 		goto oops;
931 be36ff68 2004-04-29 devnull 	*r = Rect(i,j,k,l);
932 be36ff68 2004-04-29 devnull 	*havemin = 1;
933 be36ff68 2004-04-29 devnull 	return 0;
934 be36ff68 2004-04-29 devnull 
935 be36ff68 2004-04-29 devnull oops:
936 be36ff68 2004-04-29 devnull 	werrstr("bad syntax in window size '%s'", os);
937 be36ff68 2004-04-29 devnull 	return -1;
938 be36ff68 2004-04-29 devnull }