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