xwin.c@ 33944

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1	/* -- c-basic-offset: 8 --
2	rdesktop: A Remote Desktop Protocol client.
3	User interface services - X Window System
4	Copyright (C) Matthew Chapman 1999-2008
5	Copyright 2007 Pierre Ossman <[email protected]> for Cendio AB
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20	*/
21
22	/*
23	* Oracle GPL Disclaimer: For the avoidance of doubt, except that if any license choice
24	* other than GPL or LGPL is available it will apply instead, Oracle elects to use only
25	* the General Public License version 2 (GPLv2) at this time for any software where
26	* a choice of GPL license versions is made available with the language indicating
27	* that GPLv2 or any later version may be used, or where a choice of which version
28	* of the GPL is applied is otherwise unspecified.
29	*/
30
31	#include <X11/Xlib.h>
32	#include <X11/Xutil.h>
33	#include <X11/Xproto.h>
34	#include <unistd.h>
35	#include <sys/time.h>
36	#include <time.h>
37	#include <errno.h>
38	#include <strings.h>
39	#include "rdesktop.h"
40	#include "xproto.h"
41
42	extern int g_width;
43	extern int g_height;
44	extern int g_xpos;
45	extern int g_ypos;
46	extern int g_pos;
47	extern RD_BOOL g_sendmotion;
48	extern RD_BOOL g_fullscreen;
49	extern RD_BOOL g_grab_keyboard;
50	extern RD_BOOL g_hide_decorations;
51	extern char g_title[];
52	/* Color depth of the RDP session.
53	As of RDP 5.1, it may be 8, 15, 16 or 24. */
54	extern int g_server_depth;
55	extern int g_win_button_size;
56
57	Display *g_display;
58	Time g_last_gesturetime;
59	static int g_x_socket;
60	static Screen *g_screen;
61	Window g_wnd;
62
63	/* SeamlessRDP support */
64	typedef struct _seamless_group
65	{
66	Window wnd;
67	unsigned long id;
68	unsigned int refcnt;
69	} seamless_group;
70	typedef struct _seamless_window
71	{
72	Window wnd;
73	unsigned long id;
74	unsigned long behind;
75	seamless_group *group;
76	int xoffset, yoffset;
77	int width, height;
78	int state; /* normal/minimized/maximized. */
79	unsigned int desktop;
80	struct timeval *position_timer;
81
82	RD_BOOL outstanding_position;
83	unsigned int outpos_serial;
84	int outpos_xoffset, outpos_yoffset;
85	int outpos_width, outpos_height;
86
87	unsigned int icon_size;
88	unsigned int icon_offset;
89	char icon_buffer[32 * 32 * 4];
90
91	struct _seamless_window *next;
92	} seamless_window;
93	static seamless_window *g_seamless_windows = NULL;
94	static unsigned long g_seamless_focused = 0;
95	static RD_BOOL g_seamless_started = False; /* Server end is up and running */
96	static RD_BOOL g_seamless_active = False; /* We are currently in seamless mode */
97	static RD_BOOL g_seamless_hidden = False; /* Desktop is hidden on server */
98	static RD_BOOL g_seamless_broken_restack = False; /* WM does not properly restack */
99	extern RD_BOOL g_seamless_rdp;
100
101	extern uint32 g_embed_wnd;
102	RD_BOOL g_enable_compose = False;
103	RD_BOOL g_Unobscured; /* used for screenblt */
104	static GC g_gc = NULL;
105	static GC g_create_bitmap_gc = NULL;
106	static GC g_create_glyph_gc = NULL;
107	static XRectangle g_clip_rectangle;
108	static Visual *g_visual;
109	/* Color depth of the X11 visual of our window (e.g. 24 for True Color R8G8B visual).
110	This may be 32 for R8G8B8 visuals, and then the rest of the bits are undefined
111	as far as we're concerned. */
112	static int g_depth;
113	/* Bits-per-Pixel of the pixmaps we'll be using to draw on our window.
114	This may be larger than g_depth, in which case some of the bits would
115	be kept solely for alignment (e.g. 32bpp pixmaps on a 24bpp visual). */
116	static int g_bpp;
117	static XIM g_IM;
118	static XIC g_IC;
119	static XModifierKeymap *g_mod_map;
120	/* Maps logical (xmodmap -pp) pointing device buttons (0-based) back
121	to physical (1-based) indices. */
122	static unsigned char g_pointer_log_to_phys_map[32];
123	static Cursor g_current_cursor;
124	static RD_HCURSOR g_null_cursor = NULL;
125	static Atom g_protocol_atom, g_kill_atom;
126	extern Atom g_net_wm_state_atom;
127	extern Atom g_net_wm_desktop_atom;
128	static RD_BOOL g_focused;
129	static RD_BOOL g_mouse_in_wnd;
130	/* Indicates that:
131	1) visual has 15, 16 or 24 depth and the same color channel masks
132	as its RDP equivalent (implies X server is LE),
133	2) host is LE
134	This will trigger an optimization whose real value is questionable.
135	*/
136	static RD_BOOL g_compatible_arch;
137	/* Indicates whether RDP's bitmaps and our XImages have the same
138	binary format. If so, we can avoid an expensive translation.
139	Note that this can be true when g_compatible_arch is false,
140	e.g.:
141
142	RDP(LE) <-> host(BE) <-> X-Server(LE)
143
144	('host' is the machine running rdesktop; the host simply memcpy's
145	so its endianess doesn't matter)
146	*/
147	static RD_BOOL g_no_translate_image = False;
148
149	/* endianness */
150	static RD_BOOL g_host_be;
151	static RD_BOOL g_xserver_be;
152	static int g_red_shift_r, g_blue_shift_r, g_green_shift_r;
153	static int g_red_shift_l, g_blue_shift_l, g_green_shift_l;
154
155	/* software backing store */
156	extern RD_BOOL g_ownbackstore;
157	static Pixmap g_backstore = 0;
158
159	/* Moving in single app mode */
160	static RD_BOOL g_moving_wnd;
161	static int g_move_x_offset = 0;
162	static int g_move_y_offset = 0;
163	static RD_BOOL g_using_full_workarea = False;
164
165	#ifdef WITH_RDPSND
166	extern RD_BOOL g_rdpsnd;
167	#endif
168
169	/* MWM decorations */
170	#define MWM_HINTS_DECORATIONS (1L << 1)
171	#define PROP_MOTIF_WM_HINTS_ELEMENTS 5
172	typedef struct
173	{
174	unsigned long flags;
175	unsigned long functions;
176	unsigned long decorations;
177	long inputMode;
178	unsigned long status;
179	}
180	PropMotifWmHints;
181
182	typedef struct
183	{
184	uint32 red;
185	uint32 green;
186	uint32 blue;
187	}
188	PixelColour;
189
190	#define ON_ALL_SEAMLESS_WINDOWS(func, args) \
191	do { \
192	seamless_window *sw; \
193	XRectangle rect; \
194	if (!g_seamless_windows) break; \
195	for (sw = g_seamless_windows; sw; sw = sw->next) { \
196	rect.x = g_clip_rectangle.x - sw->xoffset; \
197	rect.y = g_clip_rectangle.y - sw->yoffset; \
198	rect.width = g_clip_rectangle.width; \
199	rect.height = g_clip_rectangle.height; \
200	XSetClipRectangles(g_display, g_gc, 0, 0, &rect, 1, YXBanded); \
201	func args; \
202	} \
203	XSetClipRectangles(g_display, g_gc, 0, 0, &g_clip_rectangle, 1, YXBanded); \
204	} while (0)
205
206	static void
207	seamless_XFillPolygon(Drawable d, XPoint * points, int npoints, int xoffset, int yoffset)
208	{
209	points[0].x -= xoffset;
210	points[0].y -= yoffset;
211	XFillPolygon(g_display, d, g_gc, points, npoints, Complex, CoordModePrevious);
212	points[0].x += xoffset;
213	points[0].y += yoffset;
214	}
215
216	static void
217	seamless_XDrawLines(Drawable d, XPoint * points, int npoints, int xoffset, int yoffset)
218	{
219	points[0].x -= xoffset;
220	points[0].y -= yoffset;
221	XDrawLines(g_display, d, g_gc, points, npoints, CoordModePrevious);
222	points[0].x += xoffset;
223	points[0].y += yoffset;
224	}
225
226	#define FILL_RECTANGLE(x,y,cx,cy)\
227	{ \
228	XFillRectangle(g_display, g_wnd, g_gc, x, y, cx, cy); \
229	ON_ALL_SEAMLESS_WINDOWS(XFillRectangle, (g_display, sw->wnd, g_gc, x-sw->xoffset, y-sw->yoffset, cx, cy)); \
230	if (g_ownbackstore) \
231	XFillRectangle(g_display, g_backstore, g_gc, x, y, cx, cy); \
232	}
233
234	#define FILL_RECTANGLE_BACKSTORE(x,y,cx,cy)\
235	{ \
236	XFillRectangle(g_display, g_ownbackstore ? g_backstore : g_wnd, g_gc, x, y, cx, cy); \
237	}
238
239	#define FILL_POLYGON(p,np)\
240	{ \
241	XFillPolygon(g_display, g_wnd, g_gc, p, np, Complex, CoordModePrevious); \
242	if (g_ownbackstore) \
243	XFillPolygon(g_display, g_backstore, g_gc, p, np, Complex, CoordModePrevious); \
244	ON_ALL_SEAMLESS_WINDOWS(seamless_XFillPolygon, (sw->wnd, p, np, sw->xoffset, sw->yoffset)); \
245	}
246
247	#define DRAW_ELLIPSE(x,y,cx,cy,m)\
248	{ \
249	switch (m) \
250	{ \
251	case 0: /* Outline */ \
252	XDrawArc(g_display, g_wnd, g_gc, x, y, cx, cy, 0, 360*64); \
253	ON_ALL_SEAMLESS_WINDOWS(XDrawArc, (g_display, sw->wnd, g_gc, x-sw->xoffset, y-sw->yoffset, cx, cy, 0, 360*64)); \
254	if (g_ownbackstore) \
255	XDrawArc(g_display, g_backstore, g_gc, x, y, cx, cy, 0, 360*64); \
256	break; \
257	case 1: /* Filled */ \
258	XFillArc(g_display, g_wnd, g_gc, x, y, cx, cy, 0, 360*64); \
259	ON_ALL_SEAMLESS_WINDOWS(XFillArc, (g_display, sw->wnd, g_gc, x-sw->xoffset, y-sw->yoffset, cx, cy, 0, 360*64)); \
260	if (g_ownbackstore) \
261	XFillArc(g_display, g_backstore, g_gc, x, y, cx, cy, 0, 360*64); \
262	break; \
263	} \
264	}
265
266	/* colour maps */
267	extern RD_BOOL g_owncolmap;
268	static Colormap g_xcolmap;
269	static uint32 *g_colmap = NULL;
270
271	#define TRANSLATE(col) ( g_server_depth != 8 ? translate_colour(col) : g_owncolmap ? col : g_colmap[col] )
272	#define SET_FOREGROUND(col) XSetForeground(g_display, g_gc, TRANSLATE(col));
273	#define SET_BACKGROUND(col) XSetBackground(g_display, g_gc, TRANSLATE(col));
274
275	static int rop2_map[] = {
276	GXclear, /* 0 */
277	GXnor, /* DPon */
278	GXandInverted, /* DPna */
279	GXcopyInverted, /* Pn */
280	GXandReverse, /* PDna */
281	GXinvert, /* Dn */
282	GXxor, /* DPx */
283	GXnand, /* DPan */
284	GXand, /* DPa */
285	GXequiv, /* DPxn */
286	GXnoop, /* D */
287	GXorInverted, /* DPno */
288	GXcopy, /* P */
289	GXorReverse, /* PDno */
290	GXor, /* DPo */
291	GXset /* 1 */
292	};
293
294	#define SET_FUNCTION(rop2) { if (rop2 != ROP2_COPY) XSetFunction(g_display, g_gc, rop2_map[rop2]); }
295	#define RESET_FUNCTION(rop2) { if (rop2 != ROP2_COPY) XSetFunction(g_display, g_gc, GXcopy); }
296
297	static seamless_window *
298	sw_get_window_by_id(unsigned long id)
299	{
300	seamless_window *sw;
301	for (sw = g_seamless_windows; sw; sw = sw->next)
302	{
303	if (sw->id == id)
304	return sw;
305	}
306	return NULL;
307	}
308
309
310	static seamless_window *
311	sw_get_window_by_wnd(Window wnd)
312	{
313	seamless_window *sw;
314	for (sw = g_seamless_windows; sw; sw = sw->next)
315	{
316	if (sw->wnd == wnd)
317	return sw;
318	}
319	return NULL;
320	}
321
322
323	static void
324	sw_remove_window(seamless_window * win)
325	{
326	seamless_window sw, *prevnext = &g_seamless_windows;
327	for (sw = g_seamless_windows; sw; sw = sw->next)
328	{
329	if (sw == win)
330	{
331	*prevnext = sw->next;
332	sw->group->refcnt--;
333	if (sw->group->refcnt == 0)
334	{
335	XDestroyWindow(g_display, sw->group->wnd);
336	xfree(sw->group);
337	}
338	xfree(sw->position_timer);
339	xfree(sw);
340	return;
341	}
342	prevnext = &sw->next;
343	}
344	return;
345	}
346
347
348	/* Move all windows except wnd to new desktop */
349	static void
350	sw_all_to_desktop(Window wnd, unsigned int desktop)
351	{
352	seamless_window *sw;
353	for (sw = g_seamless_windows; sw; sw = sw->next)
354	{
355	if (sw->wnd == wnd)
356	continue;
357	if (sw->desktop != desktop)
358	{
359	ewmh_move_to_desktop(sw->wnd, desktop);
360	sw->desktop = desktop;
361	}
362	}
363	}
364
365
366	/* Send our position */
367	static void
368	sw_update_position(seamless_window * sw)
369	{
370	XWindowAttributes wa;
371	int x, y;
372	Window child_return;
373	unsigned int serial;
374
375	XGetWindowAttributes(g_display, sw->wnd, &wa);
376	XTranslateCoordinates(g_display, sw->wnd, wa.root,
377	-wa.border_width, -wa.border_width, &x, &y, &child_return);
378
379	serial = seamless_send_position(sw->id, x, y, wa.width, wa.height, 0);
380
381	sw->outstanding_position = True;
382	sw->outpos_serial = serial;
383
384	sw->outpos_xoffset = x;
385	sw->outpos_yoffset = y;
386	sw->outpos_width = wa.width;
387	sw->outpos_height = wa.height;
388	}
389
390
391	/* Check if it's time to send our position */
392	static void
393	sw_check_timers()
394	{
395	seamless_window *sw;
396	struct timeval now;
397
398	gettimeofday(&now, NULL);
399	for (sw = g_seamless_windows; sw; sw = sw->next)
400	{
401	if (timerisset(sw->position_timer) && timercmp(sw->position_timer, &now, <))
402	{
403	timerclear(sw->position_timer);
404	sw_update_position(sw);
405	}
406	}
407	}
408
409
410	static void
411	sw_restack_window(seamless_window * sw, unsigned long behind)
412	{
413	seamless_window *sw_above;
414
415	/* Remove window from stack */
416	for (sw_above = g_seamless_windows; sw_above; sw_above = sw_above->next)
417	{
418	if (sw_above->behind == sw->id)
419	break;
420	}
421
422	if (sw_above)
423	sw_above->behind = sw->behind;
424
425	/* And then add it at the new position */
426	for (sw_above = g_seamless_windows; sw_above; sw_above = sw_above->next)
427	{
428	if (sw_above->behind == behind)
429	break;
430	}
431
432	if (sw_above)
433	sw_above->behind = sw->id;
434
435	sw->behind = behind;
436	}
437
438
439	static void
440	sw_handle_restack(seamless_window * sw)
441	{
442	Status status;
443	Window root, parent, *children;
444	unsigned int nchildren, i;
445	seamless_window *sw_below;
446
447	status = XQueryTree(g_display, RootWindowOfScreen(g_screen),
448	&root, &parent, &children, &nchildren);
449	if (!status \|\| !nchildren)
450	return;
451
452	sw_below = NULL;
453
454	i = 0;
455	while (children[i] != sw->wnd)
456	{
457	i++;
458	if (i >= nchildren)
459	goto end;
460	}
461
462	for (i++; i < nchildren; i++)
463	{
464	sw_below = sw_get_window_by_wnd(children[i]);
465	if (sw_below)
466	break;
467	}
468
469	if (!sw_below && !sw->behind)
470	goto end;
471	if (sw_below && (sw_below->id == sw->behind))
472	goto end;
473
474	if (sw_below)
475	{
476	seamless_send_zchange(sw->id, sw_below->id, 0);
477	sw_restack_window(sw, sw_below->id);
478	}
479	else
480	{
481	seamless_send_zchange(sw->id, 0, 0);
482	sw_restack_window(sw, 0);
483	}
484
485	end:
486	XFree(children);
487	}
488
489
490	static seamless_group *
491	sw_find_group(unsigned long id, RD_BOOL dont_create)
492	{
493	seamless_window *sw;
494	seamless_group *sg;
495	XSetWindowAttributes attribs;
496
497	for (sw = g_seamless_windows; sw; sw = sw->next)
498	{
499	if (sw->group->id == id)
500	return sw->group;
501	}
502
503	if (dont_create)
504	return NULL;
505
506	sg = xmalloc(sizeof(seamless_group));
507
508	sg->wnd =
509	XCreateWindow(g_display, RootWindowOfScreen(g_screen), -1, -1, 1, 1, 0,
510	CopyFromParent, CopyFromParent, CopyFromParent, 0, &attribs);
511
512	sg->id = id;
513	sg->refcnt = 0;
514
515	return sg;
516	}
517
518
519	static void
520	mwm_hide_decorations(Window wnd)
521	{
522	PropMotifWmHints motif_hints;
523	Atom hintsatom;
524
525	/* setup the property */
526	motif_hints.flags = MWM_HINTS_DECORATIONS;
527	motif_hints.decorations = 0;
528
529	/* get the atom for the property */
530	hintsatom = XInternAtom(g_display, "_MOTIF_WM_HINTS", False);
531	if (!hintsatom)
532	{
533	warning("Failed to get atom _MOTIF_WM_HINTS: probably your window manager does not support MWM hints\n");
534	return;
535	}
536
537	XChangeProperty(g_display, wnd, hintsatom, hintsatom, 32, PropModeReplace,
538	(unsigned char *) &motif_hints, PROP_MOTIF_WM_HINTS_ELEMENTS);
539
540	}
541
542	typedef struct _sw_configurenotify_context
543	{
544	Window window;
545	unsigned long serial;
546	} sw_configurenotify_context;
547
548	/* Predicate procedure for sw_wait_configurenotify */
549	static Bool
550	sw_configurenotify_p(Display * display, XEvent * xevent, XPointer arg)
551	{
552	sw_configurenotify_context context = (sw_configurenotify_context ) arg;
553	if (xevent->xany.type == ConfigureNotify
554	&& xevent->xconfigure.window == context->window
555	&& xevent->xany.serial >= context->serial)
556	return True;
557
558	return False;
559	}
560
561	/* Wait for a ConfigureNotify, with a equal or larger serial, on the
562	specified window. The event will be removed from the queue. We
563	could use XMaskEvent(StructureNotifyMask), but we would then risk
564	throwing away crucial events like DestroyNotify.
565
566	After a ConfigureWindow, according to ICCCM section 4.1.5, we
567	should recieve a ConfigureNotify, either a real or synthetic
568	one. This indicates that the configure has been "completed".
569	However, some WMs such as several versions of Metacity fails to
570	send synthetic events. See bug
571	http://bugzilla.gnome.org/show_bug.cgi?id=322840. We need to use a
572	timeout to avoid a hang. Tk uses the same approach. */
573	static void
574	sw_wait_configurenotify(Window wnd, unsigned long serial)
575	{
576	XEvent xevent;
577	sw_configurenotify_context context;
578	struct timeval now;
579	struct timeval nextsecond;
580	RD_BOOL got = False;
581
582	context.window = wnd;
583	context.serial = serial;
584
585	gettimeofday(&nextsecond, NULL);
586	nextsecond.tv_sec += 1;
587
588	do
589	{
590	if (XCheckIfEvent(g_display, &xevent, sw_configurenotify_p, (XPointer) & context))
591	{
592	got = True;
593	break;
594	}
595	usleep(100000);
596	gettimeofday(&now, NULL);
597	}
598	while (timercmp(&now, &nextsecond, <));
599
600	if (!got)
601	{
602	warning("Broken Window Manager: Timeout while waiting for ConfigureNotify\n");
603	}
604	}
605
606	/* Get the toplevel window, in case of reparenting */
607	static Window
608	sw_get_toplevel(Window wnd)
609	{
610	Window root, parent;
611	Window *child_list;
612	unsigned int num_children;
613
614	while (1)
615	{
616	XQueryTree(g_display, wnd, &root, &parent, &child_list, &num_children);
617	if (root == parent)
618	{
619	break;
620	}
621	else if (!parent)
622	{
623	warning("Internal error: sw_get_toplevel called with root window\n");
624	}
625
626	wnd = parent;
627	}
628
629	return wnd;
630	}
631
632
633	/* Check if wnd is already behind a window wrt stacking order */
634	static RD_BOOL
635	sw_window_is_behind(Window wnd, Window behind)
636	{
637	Window dummy1, dummy2;
638	Window *child_list;
639	unsigned int num_children;
640	unsigned int i;
641	RD_BOOL found_behind = False;
642	RD_BOOL found_wnd = False;
643
644	wnd = sw_get_toplevel(wnd);
645	behind = sw_get_toplevel(behind);
646
647	XQueryTree(g_display, RootWindowOfScreen(g_screen), &dummy1, &dummy2, &child_list,
648	&num_children);
649
650	for (i = num_children; i > 0; i--)
651	{
652	if (child_list[i-1] == behind)
653	{
654	found_behind = True;
655	}
656	else if (child_list[i-1] == wnd)
657	{
658	found_wnd = True;
659	break;
660	}
661	}
662
663	if (child_list)
664	XFree(child_list);
665
666	if (!found_wnd)
667	{
668	warning("sw_window_is_behind: Unable to find window 0x%lx\n", wnd);
669
670	if (!found_behind)
671	{
672	warning("sw_window_is_behind: Unable to find behind window 0x%lx\n",
673	behind);
674	}
675	}
676
677	return found_behind;
678	}
679
680
681	/* Test if the window manager correctly handles window restacking. In
682	particular, we are testing if it's possible to place a window
683	between two other windows. Many WMs such as Metacity can only stack
684	windows on the top or bottom. The window creation should mostly
685	match ui_seamless_create_window. */
686	static void
687	seamless_restack_test()
688	{
689	/* The goal is to have the middle window between top and
690	bottom. The middle window is initially at the top,
691	though. */
692	Window wnds[3]; /* top, middle and bottom */
693	int i;
694	XEvent xevent;
695	XWindowChanges values;
696	unsigned long restack_serial;
697
698	for (i = 0; i < 3; i++)
699	{
700	char name[64];
701	wnds[i] =
702	XCreateSimpleWindow(g_display, RootWindowOfScreen(g_screen), 0, 0, 20, 20,
703	0, 0, 0);
704	snprintf(name, sizeof(name), "SeamlessRDP restack test - window %d", i);
705	XStoreName(g_display, wnds[i], name);
706	ewmh_set_wm_name(wnds[i], name);
707
708	/* Hide decorations. Often this means that no
709	reparenting will be done, which makes the restack
710	easier. Besides, we want to mimic our other
711	seamless windows as much as possible. We must still
712	handle the case with reparenting, though. */
713	mwm_hide_decorations(wnds[i]);
714
715	/* Prevent windows from appearing in task bar */
716	XSetTransientForHint(g_display, wnds[i], RootWindowOfScreen(g_screen));
717	ewmh_set_window_popup(wnds[i]);
718
719	/* We need to catch MapNotify/ConfigureNotify */
720	XSelectInput(g_display, wnds[i], StructureNotifyMask);
721	}
722
723	/* Map Windows. Currently, we assume that XMapRaised places
724	the window on the top of the stack. Should be fairly safe;
725	the window is configured before it's mapped. */
726	XMapRaised(g_display, wnds[2]); /* bottom */
727	do
728	{
729	XWindowEvent(g_display, wnds[2], StructureNotifyMask, &xevent);
730	}
731	while (xevent.type != MapNotify);
732	XMapRaised(g_display, wnds[0]); /* top */
733	do
734	{
735	XWindowEvent(g_display, wnds[0], StructureNotifyMask, &xevent);
736	}
737	while (xevent.type != MapNotify);
738	XMapRaised(g_display, wnds[1]); /* middle */
739	do
740	{
741	XWindowEvent(g_display, wnds[1], StructureNotifyMask, &xevent);
742	}
743	while (xevent.type != MapNotify);
744
745	/* The stacking order should now be 1 - 0 - 2 */
746	if (!sw_window_is_behind(wnds[0], wnds[1]) \|\| !sw_window_is_behind(wnds[2], wnds[1]))
747	{
748	/* Ok, technically a WM is allowed to stack windows arbitrarily, but... */
749	warning("Broken Window Manager: Unable to test window restacking\n");
750	g_seamless_broken_restack = True;
751	for (i = 0; i < 3; i++)
752	XDestroyWindow(g_display, wnds[i]);
753	return;
754	}
755
756	/* Restack, using XReconfigureWMWindow, which should correctly
757	handle reparented windows as well as nonreparenting WMs. */
758	values.stack_mode = Below;
759	values.sibling = wnds[0];
760	restack_serial = XNextRequest(g_display);
761	XReconfigureWMWindow(g_display, wnds[1], DefaultScreen(g_display), CWStackMode \| CWSibling,
762	&values);
763	sw_wait_configurenotify(wnds[1], restack_serial);
764
765	/* Now verify that middle is behind top but not behind
766	bottom */
767	if (!sw_window_is_behind(wnds[1], wnds[0]))
768	{
769	warning("Broken Window Manager: doesn't handle restack (restack request was ignored)\n");
770	g_seamless_broken_restack = True;
771	}
772	else if (sw_window_is_behind(wnds[1], wnds[2]))
773	{
774	warning("Broken Window Manager: doesn't handle restack (window was moved to bottom)\n");
775	g_seamless_broken_restack = True;
776	}
777
778	/* Destroy windows */
779	for (i = 0; i < 3; i++)
780	XDestroyWindow(g_display, wnds[i]);
781	}
782
783	#define SPLITCOLOUR15(colour, rv) \
784	{ \
785	rv.red = ((colour >> 7) & 0xf8) \| ((colour >> 12) & 0x7); \
786	rv.green = ((colour >> 2) & 0xf8) \| ((colour >> 8) & 0x7); \
787	rv.blue = ((colour << 3) & 0xf8) \| ((colour >> 2) & 0x7); \
788	}
789
790	#define SPLITCOLOUR16(colour, rv) \
791	{ \
792	rv.red = ((colour >> 8) & 0xf8) \| ((colour >> 13) & 0x7); \
793	rv.green = ((colour >> 3) & 0xfc) \| ((colour >> 9) & 0x3); \
794	rv.blue = ((colour << 3) & 0xf8) \| ((colour >> 2) & 0x7); \
795	} \
796
797	#define SPLITCOLOUR24(colour, rv) \
798	{ \
799	rv.blue = (colour & 0xff0000) >> 16; \
800	rv.green = (colour & 0x00ff00) >> 8; \
801	rv.red = (colour & 0x0000ff); \
802	}
803
804	#define MAKECOLOUR(pc) \
805	((pc.red >> g_red_shift_r) << g_red_shift_l) \
806	\| ((pc.green >> g_green_shift_r) << g_green_shift_l) \
807	\| ((pc.blue >> g_blue_shift_r) << g_blue_shift_l) \
808
809	#define BSWAP16(x) { x = (((x & 0xff) << 8) \| (x >> 8)); }
810	#define BSWAP24(x) { x = (((x & 0xff) << 16) \| (x >> 16) \| (x & 0xff00)); }
811	#define BSWAP32(x) { x = (((x & 0xff00ff) << 8) \| ((x >> 8) & 0xff00ff)); \
812	x = (x << 16) \| (x >> 16); }
813
814	/* The following macros output the same octet sequences
815	on both BE and LE hosts: */
816
817	#define BOUT16(o, x) { (o++) = x >> 8; (o++) = x; }
818	#define BOUT24(o, x) { (o++) = x >> 16; (o++) = x >> 8; *(o++) = x; }
819	#define BOUT32(o, x) { (o++) = x >> 24; (o++) = x >> 16; (o++) = x >> 8; (o++) = x; }
820	#define LOUT16(o, x) { (o++) = x; (o++) = x >> 8; }
821	#define LOUT24(o, x) { (o++) = x; (o++) = x >> 8; *(o++) = x >> 16; }
822	#define LOUT32(o, x) { (o++) = x; (o++) = x >> 8; (o++) = x >> 16; (o++) = x >> 24; }
823
824	static uint32
825	translate_colour(uint32 colour)
826	{
827	PixelColour pc;
828	switch (g_server_depth)
829	{
830	case 15:
831	SPLITCOLOUR15(colour, pc);
832	break;
833	case 16:
834	SPLITCOLOUR16(colour, pc);
835	break;
836	case 24:
837	case 32:
838	SPLITCOLOUR24(colour, pc);
839	break;
840	default:
841	/* Avoid warning */
842	pc.red = 0;
843	pc.green = 0;
844	pc.blue = 0;
845	break;
846	}
847	return MAKECOLOUR(pc);
848	}
849
850	/* indent is confused by UNROLL8 */
851	/* INDENT-OFF */
852
853	/* repeat and unroll, similar to bitmap.c */
854	/* potentialy any of the following translate */
855	/* functions can use repeat but just doing */
856	/* the most common ones */
857
858	#define UNROLL8(stm) { stm stm stm stm stm stm stm stm }
859	/* 2 byte output repeat */
860	#define REPEAT2(stm) \
861	{ \
862	while (out <= end - 8 * 2) \
863	UNROLL8(stm) \
864	while (out < end) \
865	{ stm } \
866	}
867	/* 3 byte output repeat */
868	#define REPEAT3(stm) \
869	{ \
870	while (out <= end - 8 * 3) \
871	UNROLL8(stm) \
872	while (out < end) \
873	{ stm } \
874	}
875	/* 4 byte output repeat */
876	#define REPEAT4(stm) \
877	{ \
878	while (out <= end - 8 * 4) \
879	UNROLL8(stm) \
880	while (out < end) \
881	{ stm } \
882	}
883	/* INDENT-ON */
884
885	static void
886	translate8to8(const uint8 * data, uint8 * out, uint8 * end)
887	{
888	while (out < end)
889	(out++) = (uint8) g_colmap[(data++)];
890	}
891
892	static void
893	translate8to16(const uint8 * data, uint8 * out, uint8 * end)
894	{
895	uint16 value;
896
897	if (g_compatible_arch)
898	{
899	/* INDENT-OFF */
900	REPEAT2
901	(
902	((uint16 ) out) = g_colmap[*(data++)];
903	out += 2;
904	)
905	/* INDENT-ON */
906	}
907	else if (g_xserver_be)
908	{
909	while (out < end)
910	{
911	value = (uint16) g_colmap[*(data++)];
912	BOUT16(out, value);
913	}
914	}
915	else
916	{
917	while (out < end)
918	{
919	value = (uint16) g_colmap[*(data++)];
920	LOUT16(out, value);
921	}
922	}
923	}
924
925	/* little endian - conversion happens when colourmap is built */
926	static void
927	translate8to24(const uint8 * data, uint8 * out, uint8 * end)
928	{
929	uint32 value;
930
931	if (g_compatible_arch)
932	{
933	while (out < end)
934	{
935	value = g_colmap[*(data++)];
936	BOUT24(out, value);
937	}
938	}
939	else
940	{
941	while (out < end)
942	{
943	value = g_colmap[*(data++)];
944	LOUT24(out, value);
945	}
946	}
947	}
948
949	static void
950	translate8to32(const uint8 * data, uint8 * out, uint8 * end)
951	{
952	uint32 value;
953
954	if (g_compatible_arch)
955	{
956	/* INDENT-OFF */
957	REPEAT4
958	(
959	((uint32 ) out) = g_colmap[*(data++)];
960	out += 4;
961	)
962	/* INDENT-ON */
963	}
964	else if (g_xserver_be)
965	{
966	while (out < end)
967	{
968	value = g_colmap[*(data++)];
969	BOUT32(out, value);
970	}
971	}
972	else
973	{
974	while (out < end)
975	{
976	value = g_colmap[*(data++)];
977	LOUT32(out, value);
978	}
979	}
980	}
981
982	static void
983	translate15to16(const uint16 * data, uint8 * out, uint8 * end)
984	{
985	uint16 pixel;
986	uint16 value;
987	PixelColour pc;
988
989	if (g_xserver_be)
990	{
991	while (out < end)
992	{
993	pixel = *(data++);
994	if (g_host_be)
995	{
996	BSWAP16(pixel);
997	}
998	SPLITCOLOUR15(pixel, pc);
999	value = MAKECOLOUR(pc);
1000	BOUT16(out, value);
1001	}
1002	}
1003	else
1004	{
1005	while (out < end)
1006	{
1007	pixel = *(data++);
1008	if (g_host_be)
1009	{
1010	BSWAP16(pixel);
1011	}
1012	SPLITCOLOUR15(pixel, pc);
1013	value = MAKECOLOUR(pc);
1014	LOUT16(out, value);
1015	}
1016	}
1017	}
1018
1019	static void
1020	translate15to24(const uint16 * data, uint8 * out, uint8 * end)
1021	{
1022	uint32 value;
1023	uint16 pixel;
1024	PixelColour pc;
1025
1026	if (g_compatible_arch)
1027	{
1028	/* INDENT-OFF */
1029	REPEAT3
1030	(
1031	pixel = *(data++);
1032	SPLITCOLOUR15(pixel, pc);
1033	*(out++) = pc.blue;
1034	*(out++) = pc.green;
1035	*(out++) = pc.red;
1036	)
1037	/* INDENT-ON */
1038	}
1039	else if (g_xserver_be)
1040	{
1041	while (out < end)
1042	{
1043	pixel = *(data++);
1044	if (g_host_be)
1045	{
1046	BSWAP16(pixel);
1047	}
1048	SPLITCOLOUR15(pixel, pc);
1049	value = MAKECOLOUR(pc);
1050	BOUT24(out, value);
1051	}
1052	}
1053	else
1054	{
1055	while (out < end)
1056	{
1057	pixel = *(data++);
1058	if (g_host_be)
1059	{
1060	BSWAP16(pixel);
1061	}
1062	SPLITCOLOUR15(pixel, pc);
1063	value = MAKECOLOUR(pc);
1064	LOUT24(out, value);
1065	}
1066	}
1067	}
1068
1069	static void
1070	translate15to32(const uint16 * data, uint8 * out, uint8 * end)
1071	{
1072	uint16 pixel;
1073	uint32 value;
1074	PixelColour pc;
1075
1076	if (g_compatible_arch)
1077	{
1078	/* INDENT-OFF */
1079	REPEAT4
1080	(
1081	pixel = *(data++);
1082	SPLITCOLOUR15(pixel, pc);
1083	*(out++) = pc.blue;
1084	*(out++) = pc.green;
1085	*(out++) = pc.red;
1086	*(out++) = 0;
1087	)
1088	/* INDENT-ON */
1089	}
1090	else if (g_xserver_be)
1091	{
1092	while (out < end)
1093	{
1094	pixel = *(data++);
1095	if (g_host_be)
1096	{
1097	BSWAP16(pixel);
1098	}
1099	SPLITCOLOUR15(pixel, pc);
1100	value = MAKECOLOUR(pc);
1101	BOUT32(out, value);
1102	}
1103	}
1104	else
1105	{
1106	while (out < end)
1107	{
1108	pixel = *(data++);
1109	if (g_host_be)
1110	{
1111	BSWAP16(pixel);
1112	}
1113	SPLITCOLOUR15(pixel, pc);
1114	value = MAKECOLOUR(pc);
1115	LOUT32(out, value);
1116	}
1117	}
1118	}
1119
1120	static void
1121	translate16to16(const uint16 * data, uint8 * out, uint8 * end)
1122	{
1123	uint16 pixel;
1124	uint16 value;
1125	PixelColour pc;
1126
1127	if (g_xserver_be)
1128	{
1129	if (g_host_be)
1130	{
1131	while (out < end)
1132	{
1133	pixel = *(data++);
1134	BSWAP16(pixel);
1135	SPLITCOLOUR16(pixel, pc);
1136	value = MAKECOLOUR(pc);
1137	BOUT16(out, value);
1138	}
1139	}
1140	else
1141	{
1142	while (out < end)
1143	{
1144	pixel = *(data++);
1145	SPLITCOLOUR16(pixel, pc);
1146	value = MAKECOLOUR(pc);
1147	BOUT16(out, value);
1148	}
1149	}
1150	}
1151	else
1152	{
1153	if (g_host_be)
1154	{
1155	while (out < end)
1156	{
1157	pixel = *(data++);
1158	BSWAP16(pixel);
1159	SPLITCOLOUR16(pixel, pc);
1160	value = MAKECOLOUR(pc);
1161	LOUT16(out, value);
1162	}
1163	}
1164	else
1165	{
1166	while (out < end)
1167	{
1168	pixel = *(data++);
1169	SPLITCOLOUR16(pixel, pc);
1170	value = MAKECOLOUR(pc);
1171	LOUT16(out, value);
1172	}
1173	}
1174	}
1175	}
1176
1177	static void
1178	translate16to24(const uint16 * data, uint8 * out, uint8 * end)
1179	{
1180	uint32 value;
1181	uint16 pixel;
1182	PixelColour pc;
1183
1184	if (g_compatible_arch)
1185	{
1186	/* INDENT-OFF */
1187	REPEAT3
1188	(
1189	pixel = *(data++);
1190	SPLITCOLOUR16(pixel, pc);
1191	*(out++) = pc.blue;
1192	*(out++) = pc.green;
1193	*(out++) = pc.red;
1194	)
1195	/* INDENT-ON */
1196	}
1197	else if (g_xserver_be)
1198	{
1199	if (g_host_be)
1200	{
1201	while (out < end)
1202	{
1203	pixel = *(data++);
1204	BSWAP16(pixel);
1205	SPLITCOLOUR16(pixel, pc);
1206	value = MAKECOLOUR(pc);
1207	BOUT24(out, value);
1208	}
1209	}
1210	else
1211	{
1212	while (out < end)
1213	{
1214	pixel = *(data++);
1215	SPLITCOLOUR16(pixel, pc);
1216	value = MAKECOLOUR(pc);
1217	BOUT24(out, value);
1218	}
1219	}
1220	}
1221	else
1222	{
1223	if (g_host_be)
1224	{
1225	while (out < end)
1226	{
1227	pixel = *(data++);
1228	BSWAP16(pixel);
1229	SPLITCOLOUR16(pixel, pc);
1230	value = MAKECOLOUR(pc);
1231	LOUT24(out, value);
1232	}
1233	}
1234	else
1235	{
1236	while (out < end)
1237	{
1238	pixel = *(data++);
1239	SPLITCOLOUR16(pixel, pc);
1240	value = MAKECOLOUR(pc);
1241	LOUT24(out, value);
1242	}
1243	}
1244	}
1245	}
1246
1247	static void
1248	translate16to32(const uint16 * data, uint8 * out, uint8 * end)
1249	{
1250	uint16 pixel;
1251	uint32 value;
1252	PixelColour pc;
1253
1254	if (g_compatible_arch)
1255	{
1256	/* INDENT-OFF */
1257	REPEAT4
1258	(
1259	pixel = *(data++);
1260	SPLITCOLOUR16(pixel, pc);
1261	*(out++) = pc.blue;
1262	*(out++) = pc.green;
1263	*(out++) = pc.red;
1264	*(out++) = 0;
1265	)
1266	/* INDENT-ON */
1267	}
1268	else if (g_xserver_be)
1269	{
1270	if (g_host_be)
1271	{
1272	while (out < end)
1273	{
1274	pixel = *(data++);
1275	BSWAP16(pixel);
1276	SPLITCOLOUR16(pixel, pc);
1277	value = MAKECOLOUR(pc);
1278	BOUT32(out, value);
1279	}
1280	}
1281	else
1282	{
1283	while (out < end)
1284	{
1285	pixel = *(data++);
1286	SPLITCOLOUR16(pixel, pc);
1287	value = MAKECOLOUR(pc);
1288	BOUT32(out, value);
1289	}
1290	}
1291	}
1292	else
1293	{
1294	if (g_host_be)
1295	{
1296	while (out < end)
1297	{
1298	pixel = *(data++);
1299	BSWAP16(pixel);
1300	SPLITCOLOUR16(pixel, pc);
1301	value = MAKECOLOUR(pc);
1302	LOUT32(out, value);
1303	}
1304	}
1305	else
1306	{
1307	while (out < end)
1308	{
1309	pixel = *(data++);
1310	SPLITCOLOUR16(pixel, pc);
1311	value = MAKECOLOUR(pc);
1312	LOUT32(out, value);
1313	}
1314	}
1315	}
1316	}
1317
1318	static void
1319	translate24to16(const uint8 * data, uint8 * out, uint8 * end)
1320	{
1321	uint32 pixel = 0;
1322	uint16 value;
1323	PixelColour pc;
1324
1325	while (out < end)
1326	{
1327	pixel = *(data++) << 16;
1328	pixel \|= *(data++) << 8;
1329	pixel \|= *(data++);
1330	SPLITCOLOUR24(pixel, pc);
1331	value = MAKECOLOUR(pc);
1332	if (g_xserver_be)
1333	{
1334	BOUT16(out, value);
1335	}
1336	else
1337	{
1338	LOUT16(out, value);
1339	}
1340	}
1341	}
1342
1343	static void
1344	translate24to24(const uint8 * data, uint8 * out, uint8 * end)
1345	{
1346	uint32 pixel;
1347	uint32 value;
1348	PixelColour pc;
1349
1350	if (g_xserver_be)
1351	{
1352	while (out < end)
1353	{
1354	pixel = *(data++) << 16;
1355	pixel \|= *(data++) << 8;
1356	pixel \|= *(data++);
1357	SPLITCOLOUR24(pixel, pc);
1358	value = MAKECOLOUR(pc);
1359	BOUT24(out, value);
1360	}
1361	}
1362	else
1363	{
1364	while (out < end)
1365	{
1366	pixel = *(data++) << 16;
1367	pixel \|= *(data++) << 8;
1368	pixel \|= *(data++);
1369	SPLITCOLOUR24(pixel, pc);
1370	value = MAKECOLOUR(pc);
1371	LOUT24(out, value);
1372	}
1373	}
1374	}
1375
1376	static void
1377	translate24to32(const uint8 * data, uint8 * out, uint8 * end)
1378	{
1379	uint32 pixel;
1380	uint32 value;
1381	PixelColour pc;
1382
1383	if (g_compatible_arch)
1384	{
1385	/* INDENT-OFF */
1386	#ifdef NEED_ALIGN
1387	REPEAT4
1388	(
1389	(out++) = (data++);
1390	(out++) = (data++);
1391	(out++) = (data++);
1392	*(out++) = 0;
1393	)
1394	#else
1395	REPEAT4
1396	(
1397	/* Only read 3 bytes. Reading 4 bytes means reading beyond buffer. */
1398	((uint32 ) out) = ((uint16 ) data) + (((uint8 ) data + 2) << 16);
1399	out += 4;
1400	data += 3;
1401	)
1402	#endif
1403	/* INDENT-ON */
1404	}
1405	else if (g_xserver_be)
1406	{
1407	while (out < end)
1408	{
1409	pixel = *(data++) << 16;
1410	pixel \|= *(data++) << 8;
1411	pixel \|= *(data++);
1412	SPLITCOLOUR24(pixel, pc);
1413	value = MAKECOLOUR(pc);
1414	BOUT32(out, value);
1415	}
1416	}
1417	else
1418	{
1419	while (out < end)
1420	{
1421	pixel = *(data++) << 16;
1422	pixel \|= *(data++) << 8;
1423	pixel \|= *(data++);
1424	SPLITCOLOUR24(pixel, pc);
1425	value = MAKECOLOUR(pc);
1426	LOUT32(out, value);
1427	}
1428	}
1429	}
1430
1431	static uint8 *
1432	translate_image(int width, int height, uint8 * data)
1433	{
1434	int size;
1435	uint8 *out;
1436	uint8 *end;
1437
1438	/*
1439	If RDP depth and X Visual depths match,
1440	and arch(endian) matches, no need to translate:
1441	just return data.
1442	Note: select_visual should've already ensured g_no_translate
1443	is only set for compatible depths, but the RDP depth might've
1444	changed during connection negotiations.
1445	*/
1446
1447	/* todo */
1448	if (g_server_depth == 32 && g_depth == 24)
1449	{
1450	return data;
1451	}
1452
1453	if (g_no_translate_image)
1454	{
1455	if ((g_depth == 15 && g_server_depth == 15) \|\|
1456	(g_depth == 16 && g_server_depth == 16) \|\|
1457	(g_depth == 24 && g_server_depth == 24))
1458	return data;
1459	}
1460
1461	size = width * height * (g_bpp / 8);
1462	out = (uint8 *) xmalloc(size);
1463	end = out + size;
1464
1465	switch (g_server_depth)
1466	{
1467	case 24:
1468	switch (g_bpp)
1469	{
1470	case 32:
1471	translate24to32(data, out, end);
1472	break;
1473	case 24:
1474	translate24to24(data, out, end);
1475	break;
1476	case 16:
1477	translate24to16(data, out, end);
1478	break;
1479	}
1480	break;
1481	case 16:
1482	switch (g_bpp)
1483	{
1484	case 32:
1485	translate16to32((uint16 *) data, out, end);
1486	break;
1487	case 24:
1488	translate16to24((uint16 *) data, out, end);
1489	break;
1490	case 16:
1491	translate16to16((uint16 *) data, out, end);
1492	break;
1493	}
1494	break;
1495	case 15:
1496	switch (g_bpp)
1497	{
1498	case 32:
1499	translate15to32((uint16 *) data, out, end);
1500	break;
1501	case 24:
1502	translate15to24((uint16 *) data, out, end);
1503	break;
1504	case 16:
1505	translate15to16((uint16 *) data, out, end);
1506	break;
1507	}
1508	break;
1509	case 8:
1510	switch (g_bpp)
1511	{
1512	case 8:
1513	translate8to8(data, out, end);
1514	break;
1515	case 16:
1516	translate8to16(data, out, end);
1517	break;
1518	case 24:
1519	translate8to24(data, out, end);
1520	break;
1521	case 32:
1522	translate8to32(data, out, end);
1523	break;
1524	}
1525	break;
1526	}
1527	return out;
1528	}
1529
1530	static void
1531	xwin_refresh_pointer_map(void)
1532	{
1533	unsigned char phys_to_log_map[sizeof(g_pointer_log_to_phys_map)];
1534	int i, pointer_buttons;
1535
1536	pointer_buttons = XGetPointerMapping(g_display, phys_to_log_map, sizeof(phys_to_log_map));
1537	if (pointer_buttons > sizeof(phys_to_log_map))
1538	pointer_buttons = sizeof(phys_to_log_map);
1539
1540	/* if multiple physical buttons map to the same logical button, then
1541	* use the lower numbered physical one */
1542	for (i = pointer_buttons - 1; i >= 0; i--)
1543	{
1544	/* a user could specify arbitrary values for the logical button
1545	* number, ignore any that are abnormally large */
1546	if (phys_to_log_map[i] > sizeof(g_pointer_log_to_phys_map))
1547	continue;
1548	g_pointer_log_to_phys_map[phys_to_log_map[i] - 1] = i + 1;
1549	}
1550	}
1551
1552	RD_BOOL
1553	get_key_state(unsigned int state, uint32 keysym)
1554	{
1555	int modifierpos, key, keysymMask = 0;
1556	int offset;
1557
1558	KeyCode keycode = XKeysymToKeycode(g_display, keysym);
1559
1560	if (keycode == NoSymbol)
1561	return False;
1562
1563	for (modifierpos = 0; modifierpos < 8; modifierpos++)
1564	{
1565	offset = g_mod_map->max_keypermod * modifierpos;
1566
1567	for (key = 0; key < g_mod_map->max_keypermod; key++)
1568	{
1569	if (g_mod_map->modifiermap[offset + key] == keycode)
1570	keysymMask \|= 1 << modifierpos;
1571	}
1572	}
1573
1574	return (state & keysymMask) ? True : False;
1575	}
1576
1577	static void
1578	calculate_shifts(uint32 mask, int shift_r, int shift_l)
1579	{
1580	*shift_l = ffs(mask) - 1;
1581	mask >>= *shift_l;
1582	*shift_r = 8 - ffs(mask & ~(mask >> 1));
1583	}
1584
1585	/* Given a mask of a colour channel (e.g. XVisualInfo.red_mask),
1586	calculates the bits-per-pixel of this channel (a.k.a. colour weight).
1587	*/
1588	static unsigned
1589	calculate_mask_weight(uint32 mask)
1590	{
1591	unsigned weight = 0;
1592	do
1593	{
1594	weight += (mask & 1);
1595	}
1596	while (mask >>= 1);
1597	return weight;
1598	}
1599
1600	static RD_BOOL
1601	select_visual(int screen_num)
1602	{
1603	XPixmapFormatValues *pfm;
1604	int pixmap_formats_count, visuals_count;
1605	XVisualInfo *vmatches = NULL;
1606	XVisualInfo template;
1607	int i;
1608	unsigned red_weight, blue_weight, green_weight;
1609
1610	red_weight = blue_weight = green_weight = 0;
1611
1612	if (g_server_depth == -1)
1613	{
1614	g_server_depth = DisplayPlanes(g_display, DefaultScreen(g_display));
1615	}
1616
1617	pfm = XListPixmapFormats(g_display, &pixmap_formats_count);
1618	if (pfm == NULL)
1619	{
1620	error("Unable to get list of pixmap formats from display.\n");
1621	XCloseDisplay(g_display);
1622	return False;
1623	}
1624
1625	/* Search for best TrueColor visual */
1626	template.class = TrueColor;
1627	template.screen = screen_num;
1628	vmatches =
1629	XGetVisualInfo(g_display, VisualClassMask \| VisualScreenMask, &template,
1630	&visuals_count);
1631	g_visual = NULL;
1632	g_no_translate_image = False;
1633	g_compatible_arch = False;
1634	if (vmatches != NULL)
1635	{
1636	for (i = 0; i < visuals_count; ++i)
1637	{
1638	XVisualInfo *visual_info = &vmatches[i];
1639	RD_BOOL can_translate_to_bpp = False;
1640	int j;
1641
1642	/* Try to find a no-translation visual that'll
1643	allow us to use RDP bitmaps directly as ZPixmaps. */
1644	if (!g_xserver_be && (((visual_info->depth == 15) &&
1645	/* R5G5B5 */
1646	(visual_info->red_mask == 0x7c00) &&
1647	(visual_info->green_mask == 0x3e0) &&
1648	(visual_info->blue_mask == 0x1f)) \|\|
1649	((visual_info->depth == 16) &&
1650	/* R5G6B5 */
1651	(visual_info->red_mask == 0xf800) &&
1652	(visual_info->green_mask == 0x7e0) &&
1653	(visual_info->blue_mask == 0x1f)) \|\|
1654	((visual_info->depth == 24) &&
1655	/* R8G8B8 */
1656	(visual_info->red_mask == 0xff0000) &&
1657	(visual_info->green_mask == 0xff00) &&
1658	(visual_info->blue_mask == 0xff))))
1659	{
1660	g_visual = visual_info->visual;
1661	g_depth = visual_info->depth;
1662	g_compatible_arch = !g_host_be;
1663	g_no_translate_image = (visual_info->depth == g_server_depth);
1664	if (g_no_translate_image)
1665	/* We found the best visual */
1666	break;
1667	}
1668	else
1669	{
1670	g_compatible_arch = False;
1671	}
1672
1673	if (visual_info->depth > 24)
1674	{
1675	/* Avoid 32-bit visuals and likes like the plague.
1676	They're either untested or proven to work bad
1677	(e.g. nvidia's Composite 32-bit visual).
1678	Most implementation offer a 24-bit visual anyway. */
1679	continue;
1680	}
1681
1682	/* Only care for visuals, for whose BPPs (not depths!)
1683	we have a translateXtoY function. */
1684	for (j = 0; j < pixmap_formats_count; ++j)
1685	{
1686	if (pfm[j].depth == visual_info->depth)
1687	{
1688	if ((pfm[j].bits_per_pixel == 16) \|\|
1689	(pfm[j].bits_per_pixel == 24) \|\|
1690	(pfm[j].bits_per_pixel == 32))
1691	{
1692	can_translate_to_bpp = True;
1693	}
1694	break;
1695	}
1696	}
1697
1698	/* Prefer formats which have the most colour depth.
1699	We're being truly aristocratic here, minding each
1700	weight on its own. */
1701	if (can_translate_to_bpp)
1702	{
1703	unsigned vis_red_weight =
1704	calculate_mask_weight(visual_info->red_mask);
1705	unsigned vis_green_weight =
1706	calculate_mask_weight(visual_info->green_mask);
1707	unsigned vis_blue_weight =
1708	calculate_mask_weight(visual_info->blue_mask);
1709	if ((vis_red_weight >= red_weight)
1710	&& (vis_green_weight >= green_weight)
1711	&& (vis_blue_weight >= blue_weight))
1712	{
1713	red_weight = vis_red_weight;
1714	green_weight = vis_green_weight;
1715	blue_weight = vis_blue_weight;
1716	g_visual = visual_info->visual;
1717	g_depth = visual_info->depth;
1718	}
1719	}
1720	}
1721	XFree(vmatches);
1722	}
1723
1724	if (g_visual != NULL)
1725	{
1726	g_owncolmap = False;
1727	calculate_shifts(g_visual->red_mask, &g_red_shift_r, &g_red_shift_l);
1728	calculate_shifts(g_visual->green_mask, &g_green_shift_r, &g_green_shift_l);
1729	calculate_shifts(g_visual->blue_mask, &g_blue_shift_r, &g_blue_shift_l);
1730	}
1731	else
1732	{
1733	template.class = PseudoColor;
1734	template.depth = 8;
1735	template.colormap_size = 256;
1736	vmatches =
1737	XGetVisualInfo(g_display,
1738	VisualClassMask \| VisualDepthMask \| VisualColormapSizeMask,
1739	&template, &visuals_count);
1740	if (vmatches == NULL)
1741	{
1742	error("No usable TrueColor or PseudoColor visuals on this display.\n");
1743	XCloseDisplay(g_display);
1744	XFree(pfm);
1745	return False;
1746	}
1747
1748	/* we use a colourmap, so the default visual should do */
1749	g_owncolmap = True;
1750	g_visual = vmatches[0].visual;
1751	g_depth = vmatches[0].depth;
1752	}
1753
1754	g_bpp = 0;
1755	for (i = 0; i < pixmap_formats_count; ++i)
1756	{
1757	XPixmapFormatValues *pf = &pfm[i];
1758	if (pf->depth == g_depth)
1759	{
1760	g_bpp = pf->bits_per_pixel;
1761
1762	if (g_no_translate_image)
1763	{
1764	switch (g_server_depth)
1765	{
1766	case 15:
1767	case 16:
1768	if (g_bpp != 16)
1769	g_no_translate_image = False;
1770	break;
1771	case 24:
1772	/* Yes, this will force image translation
1773	on most modern servers which use 32 bits
1774	for R8G8B8. */
1775	if (g_bpp != 24)
1776	g_no_translate_image = False;
1777	break;
1778	default:
1779	g_no_translate_image = False;
1780	break;
1781	}
1782	}
1783
1784	/* Pixmap formats list is a depth-to-bpp mapping --
1785	there's just a single entry for every depth,
1786	so we can safely break here */
1787	break;
1788	}
1789	}
1790	XFree(pfm);
1791	pfm = NULL;
1792	return True;
1793	}
1794
1795	static XErrorHandler g_old_error_handler;
1796	static RD_BOOL g_error_expected = False;
1797
1798	/* Check if the X11 window corresponding to a seamless window with
1799	specified id exists. */
1800	RD_BOOL
1801	sw_window_exists(unsigned long id)
1802	{
1803	seamless_window *sw;
1804	char *name;
1805	Status sts = 0;
1806
1807	sw = sw_get_window_by_id(id);
1808	if (!sw)
1809	return False;
1810
1811	g_error_expected = True;
1812	sts = XFetchName(g_display, sw->wnd, &name);
1813	g_error_expected = False;
1814	if (sts)
1815	{
1816	XFree(name);
1817	}
1818
1819	return sts;
1820	}
1821
1822	static int
1823	error_handler(Display * dpy, XErrorEvent * eev)
1824	{
1825	if (g_error_expected)
1826	return 0;
1827
1828	return g_old_error_handler(dpy, eev);
1829	}
1830
1831	RD_BOOL
1832	ui_init(void)
1833	{
1834	int screen_num;
1835
1836	g_display = XOpenDisplay(NULL);
1837	if (g_display == NULL)
1838	{
1839	error("Failed to open display: %s\n", XDisplayName(NULL));
1840	return False;
1841	}
1842
1843	{
1844	uint16 endianess_test = 1;
1845	g_host_be = !(RD_BOOL) ((uint8 ) (&endianess_test));
1846	}
1847
1848	g_old_error_handler = XSetErrorHandler(error_handler);
1849	g_xserver_be = (ImageByteOrder(g_display) == MSBFirst);
1850	screen_num = DefaultScreen(g_display);
1851	g_x_socket = ConnectionNumber(g_display);
1852	g_screen = ScreenOfDisplay(g_display, screen_num);
1853	g_depth = DefaultDepthOfScreen(g_screen);
1854
1855	if (!select_visual(screen_num))
1856	return False;
1857
1858	if (g_no_translate_image)
1859	{
1860	DEBUG(("Performance optimization possible: avoiding image translation (colour depth conversion).\n"));
1861	}
1862
1863	if (g_server_depth > g_bpp)
1864	{
1865	warning("Remote desktop colour depth %d higher than display colour depth %d.\n",
1866	g_server_depth, g_bpp);
1867	}
1868
1869	DEBUG(("RDP depth: %d, display depth: %d, display bpp: %d, X server BE: %d, host BE: %d\n",
1870	g_server_depth, g_depth, g_bpp, g_xserver_be, g_host_be));
1871
1872	if (!g_owncolmap)
1873	{
1874	g_xcolmap =
1875	XCreateColormap(g_display, RootWindowOfScreen(g_screen), g_visual,
1876	AllocNone);
1877	if (g_depth <= 8)
1878	warning("Display colour depth is %d bit: you may want to use -C for a private colourmap.\n", g_depth);
1879	}
1880
1881	if ((!g_ownbackstore) && (DoesBackingStore(g_screen) != Always))
1882	{
1883	warning("External BackingStore not available. Using internal.\n");
1884	g_ownbackstore = True;
1885	}
1886
1887	/*
1888	* Determine desktop size
1889	*/
1890	if (g_fullscreen)
1891	{
1892	g_width = WidthOfScreen(g_screen);
1893	g_height = HeightOfScreen(g_screen);
1894	g_using_full_workarea = True;
1895	}
1896	else if (g_width < 0)
1897	{
1898	/* Percent of screen */
1899	if (-g_width >= 100)
1900	g_using_full_workarea = True;
1901	g_height = HeightOfScreen(g_screen) * (-g_width) / 100;
1902	g_width = WidthOfScreen(g_screen) * (-g_width) / 100;
1903	}
1904	else if (g_width == 0)
1905	{
1906	/* Fetch geometry from _NET_WORKAREA */
1907	uint32 x, y, cx, cy;
1908	if (get_current_workarea(&x, &y, &cx, &cy) == 0)
1909	{
1910	g_width = cx;
1911	g_height = cy;
1912	g_using_full_workarea = True;
1913	}
1914	else
1915	{
1916	warning("Failed to get workarea: probably your window manager does not support extended hints\n");
1917	g_width = WidthOfScreen(g_screen);
1918	g_height = HeightOfScreen(g_screen);
1919	}
1920	}
1921
1922	/* make sure width is a multiple of 4 */
1923	g_width = (g_width + 3) & ~3;
1924
1925	g_mod_map = XGetModifierMapping(g_display);
1926	xwin_refresh_pointer_map();
1927
1928	xkeymap_init();
1929
1930	if (g_enable_compose)
1931	g_IM = XOpenIM(g_display, NULL, NULL, NULL);
1932
1933	xclip_init();
1934	ewmh_init();
1935	if (g_seamless_rdp)
1936	{
1937	seamless_init();
1938	}
1939
1940	DEBUG_RDP5(("server bpp %d client bpp %d depth %d\n", g_server_depth, g_bpp, g_depth));
1941
1942	return True;
1943	}
1944
1945	void
1946	ui_deinit(void)
1947	{
1948	while (g_seamless_windows)
1949	{
1950	XDestroyWindow(g_display, g_seamless_windows->wnd);
1951	sw_remove_window(g_seamless_windows);
1952	}
1953
1954	xclip_deinit();
1955
1956	if (g_IM != NULL)
1957	XCloseIM(g_IM);
1958
1959	if (g_null_cursor != NULL)
1960	ui_destroy_cursor(g_null_cursor);
1961
1962	XFreeModifiermap(g_mod_map);
1963
1964	if (g_ownbackstore)
1965	XFreePixmap(g_display, g_backstore);
1966
1967	XFreeGC(g_display, g_gc);
1968	XCloseDisplay(g_display);
1969	g_display = NULL;
1970	}
1971
1972
1973	static void
1974	get_window_attribs(XSetWindowAttributes * attribs)
1975	{
1976	attribs->background_pixel = BlackPixelOfScreen(g_screen);
1977	attribs->background_pixel = WhitePixelOfScreen(g_screen);
1978	attribs->border_pixel = WhitePixelOfScreen(g_screen);
1979	attribs->backing_store = g_ownbackstore ? NotUseful : Always;
1980	attribs->override_redirect = g_fullscreen;
1981	attribs->colormap = g_xcolmap;
1982	}
1983
1984	static void
1985	get_input_mask(long *input_mask)
1986	{
1987	*input_mask = KeyPressMask \| KeyReleaseMask \| ButtonPressMask \| ButtonReleaseMask \|
1988	VisibilityChangeMask \| FocusChangeMask \| StructureNotifyMask;
1989
1990	if (g_sendmotion)
1991	*input_mask \|= PointerMotionMask;
1992	if (g_ownbackstore)
1993	*input_mask \|= ExposureMask;
1994	if (g_fullscreen \|\| g_grab_keyboard)
1995	*input_mask \|= EnterWindowMask;
1996	if (g_grab_keyboard)
1997	*input_mask \|= LeaveWindowMask;
1998	}
1999
2000	RD_BOOL
2001	ui_create_window(void)
2002	{
2003	uint8 null_pointer_mask[1] = { 0x80 };
2004	uint8 null_pointer_data[24] = { 0x00 };
2005
2006	XSetWindowAttributes attribs;
2007	XClassHint *classhints;
2008	XSizeHints *sizehints;
2009	int wndwidth, wndheight;
2010	long input_mask, ic_input_mask;
2011	XEvent xevent;
2012
2013	wndwidth = g_fullscreen ? WidthOfScreen(g_screen) : g_width;
2014	wndheight = g_fullscreen ? HeightOfScreen(g_screen) : g_height;
2015
2016	/* Handle -x-y portion of geometry string */
2017	if (g_xpos < 0 \|\| (g_xpos == 0 && (g_pos & 2)))
2018	g_xpos = WidthOfScreen(g_screen) + g_xpos - g_width;
2019	if (g_ypos < 0 \|\| (g_ypos == 0 && (g_pos & 4)))
2020	g_ypos = HeightOfScreen(g_screen) + g_ypos - g_height;
2021
2022	get_window_attribs(&attribs);
2023
2024	g_wnd = XCreateWindow(g_display, RootWindowOfScreen(g_screen), g_xpos, g_ypos, wndwidth,
2025	wndheight, 0, g_depth, InputOutput, g_visual,
2026	CWBackPixel \| CWBackingStore \| CWOverrideRedirect \| CWColormap \|
2027	CWBorderPixel, &attribs);
2028
2029	if (g_gc == NULL)
2030	{
2031	g_gc = XCreateGC(g_display, g_wnd, 0, NULL);
2032	ui_reset_clip();
2033	}
2034
2035	if (g_create_bitmap_gc == NULL)
2036	g_create_bitmap_gc = XCreateGC(g_display, g_wnd, 0, NULL);
2037
2038	if ((g_ownbackstore) && (g_backstore == 0))
2039	{
2040	g_backstore = XCreatePixmap(g_display, g_wnd, g_width, g_height, g_depth);
2041
2042	/* clear to prevent rubbish being exposed at startup */
2043	XSetForeground(g_display, g_gc, BlackPixelOfScreen(g_screen));
2044	XFillRectangle(g_display, g_backstore, g_gc, 0, 0, g_width, g_height);
2045	}
2046
2047	XStoreName(g_display, g_wnd, g_title);
2048	ewmh_set_wm_name(g_wnd, g_title);
2049
2050	if (g_hide_decorations)
2051	mwm_hide_decorations(g_wnd);
2052
2053	classhints = XAllocClassHint();
2054	if (classhints != NULL)
2055	{
2056	classhints->res_name = classhints->res_class = "rdesktop";
2057	XSetClassHint(g_display, g_wnd, classhints);
2058	XFree(classhints);
2059	}
2060
2061	sizehints = XAllocSizeHints();
2062	if (sizehints)
2063	{
2064	sizehints->flags = PMinSize \| PMaxSize;
2065	if (g_pos)
2066	sizehints->flags \|= PPosition;
2067	sizehints->min_width = sizehints->max_width = g_width;
2068	sizehints->min_height = sizehints->max_height = g_height;
2069	XSetWMNormalHints(g_display, g_wnd, sizehints);
2070	XFree(sizehints);
2071	}
2072
2073	if (g_embed_wnd)
2074	{
2075	XReparentWindow(g_display, g_wnd, (Window) g_embed_wnd, 0, 0);
2076	}
2077
2078	get_input_mask(&input_mask);
2079
2080	if (g_IM != NULL)
2081	{
2082	g_IC = XCreateIC(g_IM, XNInputStyle, (XIMPreeditNothing \| XIMStatusNothing),
2083	XNClientWindow, g_wnd, XNFocusWindow, g_wnd, NULL);
2084
2085	if ((g_IC != NULL)
2086	&& (XGetICValues(g_IC, XNFilterEvents, &ic_input_mask, NULL) == NULL))
2087	input_mask \|= ic_input_mask;
2088	}
2089
2090	XSelectInput(g_display, g_wnd, input_mask);
2091	XMapWindow(g_display, g_wnd);
2092
2093	/* wait for VisibilityNotify */
2094	do
2095	{
2096	XMaskEvent(g_display, VisibilityChangeMask, &xevent);
2097	}
2098	while (xevent.type != VisibilityNotify);
2099	g_Unobscured = xevent.xvisibility.state == VisibilityUnobscured;
2100
2101	g_focused = False;
2102	g_mouse_in_wnd = False;
2103
2104	/* handle the WM_DELETE_WINDOW protocol */
2105	g_protocol_atom = XInternAtom(g_display, "WM_PROTOCOLS", True);
2106	g_kill_atom = XInternAtom(g_display, "WM_DELETE_WINDOW", True);
2107	XSetWMProtocols(g_display, g_wnd, &g_kill_atom, 1);
2108
2109	/* create invisible 1x1 cursor to be used as null cursor */
2110	if (g_null_cursor == NULL)
2111	g_null_cursor = ui_create_cursor(0, 0, 1, 1, null_pointer_mask, null_pointer_data);
2112
2113	if (g_seamless_rdp)
2114	{
2115	seamless_restack_test();
2116	}
2117
2118	return True;
2119	}
2120
2121	void
2122	ui_resize_window()
2123	{
2124	XSizeHints *sizehints;
2125	Pixmap bs;
2126
2127	sizehints = XAllocSizeHints();
2128	if (sizehints)
2129	{
2130	sizehints->flags = PMinSize \| PMaxSize;
2131	sizehints->min_width = sizehints->max_width = g_width;
2132	sizehints->min_height = sizehints->max_height = g_height;
2133	XSetWMNormalHints(g_display, g_wnd, sizehints);
2134	XFree(sizehints);
2135	}
2136
2137	if (!(g_fullscreen \|\| g_embed_wnd))
2138	{
2139	XResizeWindow(g_display, g_wnd, g_width, g_height);
2140	}
2141
2142	/* create new backstore pixmap */
2143	if (g_backstore != 0)
2144	{
2145	bs = XCreatePixmap(g_display, g_wnd, g_width, g_height, g_depth);
2146	XSetForeground(g_display, g_gc, BlackPixelOfScreen(g_screen));
2147	XFillRectangle(g_display, bs, g_gc, 0, 0, g_width, g_height);
2148	XCopyArea(g_display, g_backstore, bs, g_gc, 0, 0, g_width, g_height, 0, 0);
2149	XFreePixmap(g_display, g_backstore);
2150	g_backstore = bs;
2151	}
2152	}
2153
2154	void
2155	ui_destroy_window(void)
2156	{
2157	if (g_IC != NULL)
2158	XDestroyIC(g_IC);
2159
2160	XDestroyWindow(g_display, g_wnd);
2161	}
2162
2163	void
2164	xwin_toggle_fullscreen(void)
2165	{
2166	Pixmap contents = 0;
2167
2168	if (g_seamless_active)
2169	/* Turn off SeamlessRDP mode */
2170	ui_seamless_toggle();
2171
2172	if (!g_ownbackstore)
2173	{
2174	/* need to save contents of window */
2175	contents = XCreatePixmap(g_display, g_wnd, g_width, g_height, g_depth);
2176	XCopyArea(g_display, g_wnd, contents, g_gc, 0, 0, g_width, g_height, 0, 0);
2177	}
2178
2179	ui_destroy_window();
2180	g_fullscreen = !g_fullscreen;
2181	ui_create_window();
2182
2183	XDefineCursor(g_display, g_wnd, g_current_cursor);
2184
2185	if (!g_ownbackstore)
2186	{
2187	XCopyArea(g_display, contents, g_wnd, g_gc, 0, 0, g_width, g_height, 0, 0);
2188	XFreePixmap(g_display, contents);
2189	}
2190	}
2191
2192	static void
2193	handle_button_event(XEvent xevent, RD_BOOL down)
2194	{
2195	uint16 button, flags = 0;
2196	g_last_gesturetime = xevent.xbutton.time;
2197	/* Reverse the pointer button mapping, e.g. in the case of
2198	"left-handed mouse mode"; the RDP session expects to
2199	receive physical buttons (true in mstsc as well) and
2200	logical button behavior depends on the remote desktop's own
2201	mouse settings */
2202	xevent.xbutton.button = g_pointer_log_to_phys_map[xevent.xbutton.button - 1];
2203	button = xkeymap_translate_button(xevent.xbutton.button);
2204	if (button == 0)
2205	return;
2206
2207	if (down)
2208	flags = MOUSE_FLAG_DOWN;
2209
2210	/* Stop moving window when button is released, regardless of cursor position */
2211	if (g_moving_wnd && (xevent.type == ButtonRelease))
2212	g_moving_wnd = False;
2213
2214	/* If win_button_size is nonzero, enable single app mode */
2215	if (xevent.xbutton.y < g_win_button_size)
2216	{
2217	/* Check from right to left: */
2218	if (xevent.xbutton.x >= g_width - g_win_button_size)
2219	{
2220	/* The close button, continue */
2221	;
2222	}
2223	else if (xevent.xbutton.x >= g_width - g_win_button_size * 2)
2224	{
2225	/* The maximize/restore button. Do not send to
2226	server. It might be a good idea to change the
2227	cursor or give some other visible indication
2228	that rdesktop inhibited this click */
2229	if (xevent.type == ButtonPress)
2230	return;
2231	}
2232	else if (xevent.xbutton.x >= g_width - g_win_button_size * 3)
2233	{
2234	/* The minimize button. Iconify window. */
2235	if (xevent.type == ButtonRelease)
2236	{
2237	/* Release the mouse button outside the minimize button, to prevent the
2238	actual minimazation to happen */
2239	rdp_send_input(time(NULL), RDP_INPUT_MOUSE, button, 1, 1);
2240	XIconifyWindow(g_display, g_wnd, DefaultScreen(g_display));
2241	return;
2242	}
2243	}
2244	else if (xevent.xbutton.x <= g_win_button_size)
2245	{
2246	/* The system menu. Ignore. */
2247	if (xevent.type == ButtonPress)
2248	return;
2249	}
2250	else
2251	{
2252	/* The title bar. */
2253	if (xevent.type == ButtonPress)
2254	{
2255	if (!g_fullscreen && g_hide_decorations && !g_using_full_workarea)
2256	{
2257	g_moving_wnd = True;
2258	g_move_x_offset = xevent.xbutton.x;
2259	g_move_y_offset = xevent.xbutton.y;
2260	}
2261	return;
2262	}
2263	}
2264	}
2265
2266	if (xevent.xmotion.window == g_wnd)
2267	{
2268	rdp_send_input(time(NULL), RDP_INPUT_MOUSE,
2269	flags \| button, xevent.xbutton.x, xevent.xbutton.y);
2270	}
2271	else
2272	{
2273	/* SeamlessRDP */
2274	rdp_send_input(time(NULL), RDP_INPUT_MOUSE,
2275	flags \| button, xevent.xbutton.x_root, xevent.xbutton.y_root);
2276	}
2277	}
2278
2279
2280	/* Process events in Xlib queue
2281	Returns 0 after user quit, 1 otherwise */
2282	static int
2283	xwin_process_events(void)
2284	{
2285	XEvent xevent;
2286	KeySym keysym;
2287	uint32 ev_time;
2288	char str[256];
2289	Status status;
2290	int events = 0;
2291	seamless_window *sw;
2292
2293	while ((XPending(g_display) > 0) && events++ < 20)
2294	{
2295	XNextEvent(g_display, &xevent);
2296
2297	if ((g_IC != NULL) && (XFilterEvent(&xevent, None) == True))
2298	{
2299	DEBUG_KBD(("Filtering event\n"));
2300	continue;
2301	}
2302
2303	switch (xevent.type)
2304	{
2305	case VisibilityNotify:
2306	if (xevent.xvisibility.window == g_wnd)
2307	g_Unobscured =
2308	xevent.xvisibility.state == VisibilityUnobscured;
2309
2310	break;
2311	case ClientMessage:
2312	/* the window manager told us to quit */
2313	if ((xevent.xclient.message_type == g_protocol_atom)
2314	&& ((Atom) xevent.xclient.data.l[0] == g_kill_atom))
2315	{
2316	/* When killing a seamless window, close the window on the
2317	serverside instead of terminating rdesktop */
2318	sw = sw_get_window_by_wnd(xevent.xclient.window);
2319	if (!sw)
2320	/* Otherwise, quit */
2321	return 0;
2322	/* send seamless destroy process message */
2323	seamless_send_destroy(sw->id);
2324	}
2325	break;
2326
2327	case KeyPress:
2328	g_last_gesturetime = xevent.xkey.time;
2329	if (g_IC != NULL)
2330	/* Multi_key compatible version */
2331	{
2332	XmbLookupString(g_IC,
2333	&xevent.xkey, str, sizeof(str), &keysym,
2334	&status);
2335	if (!((status == XLookupKeySym) \|\| (status == XLookupBoth)))
2336	{
2337	error("XmbLookupString failed with status 0x%x\n",
2338	status);
2339	break;
2340	}
2341	}
2342	else
2343	{
2344	/* Plain old XLookupString */
2345	DEBUG_KBD(("\nNo input context, using XLookupString\n"));
2346	XLookupString((XKeyEvent *) & xevent,
2347	str, sizeof(str), &keysym, NULL);
2348	}
2349
2350	DEBUG_KBD(("KeyPress for keysym (0x%lx, %s)\n", keysym,
2351	get_ksname(keysym)));
2352
2353	ev_time = time(NULL);
2354	if (handle_special_keys(keysym, xevent.xkey.state, ev_time, True))
2355	break;
2356
2357	xkeymap_send_keys(keysym, xevent.xkey.keycode, xevent.xkey.state,
2358	ev_time, True, 0);
2359	break;
2360
2361	case KeyRelease:
2362	g_last_gesturetime = xevent.xkey.time;
2363	XLookupString((XKeyEvent *) & xevent, str,
2364	sizeof(str), &keysym, NULL);
2365
2366	DEBUG_KBD(("\nKeyRelease for keysym (0x%lx, %s)\n", keysym,
2367	get_ksname(keysym)));
2368
2369	ev_time = time(NULL);
2370	if (handle_special_keys(keysym, xevent.xkey.state, ev_time, False))
2371	break;
2372
2373	xkeymap_send_keys(keysym, xevent.xkey.keycode, xevent.xkey.state,
2374	ev_time, False, 0);
2375	break;
2376
2377	case ButtonPress:
2378	handle_button_event(xevent, True);
2379	break;
2380
2381	case ButtonRelease:
2382	handle_button_event(xevent, False);
2383	break;
2384
2385	case MotionNotify:
2386	if (g_moving_wnd)
2387	{
2388	XMoveWindow(g_display, g_wnd,
2389	xevent.xmotion.x_root - g_move_x_offset,
2390	xevent.xmotion.y_root - g_move_y_offset);
2391	break;
2392	}
2393
2394	if (g_fullscreen && !g_focused)
2395	XSetInputFocus(g_display, g_wnd, RevertToPointerRoot,
2396	CurrentTime);
2397
2398	if (xevent.xmotion.window == g_wnd)
2399	{
2400	rdp_send_input(time(NULL), RDP_INPUT_MOUSE, MOUSE_FLAG_MOVE,
2401	xevent.xmotion.x, xevent.xmotion.y);
2402	}
2403	else
2404	{
2405	/* SeamlessRDP */
2406	rdp_send_input(time(NULL), RDP_INPUT_MOUSE, MOUSE_FLAG_MOVE,
2407	xevent.xmotion.x_root,
2408	xevent.xmotion.y_root);
2409	}
2410	break;
2411
2412	case FocusIn:
2413	if (xevent.xfocus.mode == NotifyGrab)
2414	break;
2415	g_focused = True;
2416	reset_modifier_keys();
2417	if (g_grab_keyboard && g_mouse_in_wnd)
2418	XGrabKeyboard(g_display, g_wnd, True,
2419	GrabModeAsync, GrabModeAsync, CurrentTime);
2420
2421	sw = sw_get_window_by_wnd(xevent.xfocus.window);
2422	if (!sw)
2423	break;
2424
2425	/* Menu windows are real X11 windows,
2426	with focus. When such a window is
2427	destroyed, focus is reverted to the
2428	main application window, which
2429	would cause us to send FOCUS. This
2430	breaks window switching in, say,
2431	Seamonkey. We shouldn't need to
2432	send FOCUS: Windows should also
2433	revert focus to some other window
2434	when the menu window is
2435	destroyed. So, we only send FOCUS
2436	if the previous focus window still
2437	exists. */
2438	if (sw->id != g_seamless_focused)
2439	{
2440
2441	if (sw_window_exists(g_seamless_focused))
2442	seamless_send_focus(sw->id, 0);
2443	g_seamless_focused = sw->id;
2444	}
2445	break;
2446
2447	case FocusOut:
2448	if (xevent.xfocus.mode == NotifyUngrab)
2449	break;
2450	g_focused = False;
2451	if (xevent.xfocus.mode == NotifyWhileGrabbed)
2452	XUngrabKeyboard(g_display, CurrentTime);
2453	break;
2454
2455	case EnterNotify:
2456	/* we only register for this event when in fullscreen mode */
2457	/* or grab_keyboard */
2458	g_mouse_in_wnd = True;
2459	if (g_fullscreen)
2460	{
2461	XSetInputFocus(g_display, g_wnd, RevertToPointerRoot,
2462	CurrentTime);
2463	break;
2464	}
2465	if (g_focused)
2466	XGrabKeyboard(g_display, g_wnd, True,
2467	GrabModeAsync, GrabModeAsync, CurrentTime);
2468	break;
2469
2470	case LeaveNotify:
2471	/* we only register for this event when grab_keyboard */
2472	g_mouse_in_wnd = False;
2473	XUngrabKeyboard(g_display, CurrentTime);
2474	/* VirtualBox code begin */
2475	if (g_fullscreen)
2476	{
2477	/* If mouse pointer is outside the fullscreen client window,
2478	* release it to let the client on the other screen to continue
2479	* with the mouse processing.
2480	*/
2481	XUngrabPointer(g_display, CurrentTime);
2482	}
2483	/* VirtualBox code end */
2484	break;
2485
2486	case Expose:
2487	if (xevent.xexpose.window == g_wnd)
2488	{
2489	XCopyArea(g_display, g_backstore, xevent.xexpose.window,
2490	g_gc,
2491	xevent.xexpose.x, xevent.xexpose.y,
2492	xevent.xexpose.width, xevent.xexpose.height,
2493	xevent.xexpose.x, xevent.xexpose.y);
2494	}
2495	else
2496	{
2497	sw = sw_get_window_by_wnd(xevent.xexpose.window);
2498	if (!sw)
2499	break;
2500	XCopyArea(g_display, g_backstore,
2501	xevent.xexpose.window, g_gc,
2502	xevent.xexpose.x + sw->xoffset,
2503	xevent.xexpose.y + sw->yoffset,
2504	xevent.xexpose.width,
2505	xevent.xexpose.height, xevent.xexpose.x,
2506	xevent.xexpose.y);
2507	}
2508
2509	break;
2510
2511	case MappingNotify:
2512	/* Refresh keyboard mapping if it has changed. This is important for
2513	Xvnc, since it allocates keycodes dynamically */
2514	if (xevent.xmapping.request == MappingKeyboard
2515	\|\| xevent.xmapping.request == MappingModifier)
2516	XRefreshKeyboardMapping(&xevent.xmapping);
2517
2518	if (xevent.xmapping.request == MappingModifier)
2519	{
2520	XFreeModifiermap(g_mod_map);
2521	g_mod_map = XGetModifierMapping(g_display);
2522	}
2523
2524	if (xevent.xmapping.request == MappingPointer)
2525	{
2526	xwin_refresh_pointer_map();
2527	}
2528
2529	break;
2530
2531	/* clipboard stuff */
2532	case SelectionNotify:
2533	xclip_handle_SelectionNotify(&xevent.xselection);
2534	break;
2535	case SelectionRequest:
2536	xclip_handle_SelectionRequest(&xevent.xselectionrequest);
2537	break;
2538	case SelectionClear:
2539	xclip_handle_SelectionClear();
2540	break;
2541	case PropertyNotify:
2542	xclip_handle_PropertyNotify(&xevent.xproperty);
2543	if (xevent.xproperty.window == g_wnd)
2544	break;
2545	if (xevent.xproperty.window == DefaultRootWindow(g_display))
2546	break;
2547
2548	/* seamless */
2549	sw = sw_get_window_by_wnd(xevent.xproperty.window);
2550	if (!sw)
2551	break;
2552
2553	if ((xevent.xproperty.atom == g_net_wm_state_atom)
2554	&& (xevent.xproperty.state == PropertyNewValue))
2555	{
2556	sw->state = ewmh_get_window_state(sw->wnd);
2557	seamless_send_state(sw->id, sw->state, 0);
2558	}
2559
2560	if ((xevent.xproperty.atom == g_net_wm_desktop_atom)
2561	&& (xevent.xproperty.state == PropertyNewValue))
2562	{
2563	sw->desktop = ewmh_get_window_desktop(sw->wnd);
2564	sw_all_to_desktop(sw->wnd, sw->desktop);
2565	}
2566
2567	break;
2568	case MapNotify:
2569	if (!g_seamless_active)
2570	rdp_send_client_window_status(1);
2571	break;
2572	case UnmapNotify:
2573	if (!g_seamless_active)
2574	rdp_send_client_window_status(0);
2575	break;
2576	case ConfigureNotify:
2577	if (!g_seamless_active)
2578	break;
2579
2580	sw = sw_get_window_by_wnd(xevent.xconfigure.window);
2581	if (!sw)
2582	break;
2583
2584	gettimeofday(sw->position_timer, NULL);
2585	if (sw->position_timer->tv_usec + SEAMLESSRDP_POSITION_TIMER >=
2586	1000000)
2587	{
2588	sw->position_timer->tv_usec +=
2589	SEAMLESSRDP_POSITION_TIMER - 1000000;
2590	sw->position_timer->tv_sec += 1;
2591	}
2592	else
2593	{
2594	sw->position_timer->tv_usec += SEAMLESSRDP_POSITION_TIMER;
2595	}
2596
2597	sw_handle_restack(sw);
2598	break;
2599	}
2600	}
2601	/* Keep going */
2602	return 1;
2603	}
2604
2605	/* Returns 0 after user quit, 1 otherwise */
2606	int
2607	ui_select(int rdp_socket)
2608	{
2609	int n;
2610	fd_set rfds, wfds;
2611	struct timeval tv;
2612	RD_BOOL s_timeout = False;
2613
2614	while (True)
2615	{
2616	n = (rdp_socket > g_x_socket) ? rdp_socket : g_x_socket;
2617	/* Process any events already waiting */
2618	if (!xwin_process_events())
2619	/* User quit */
2620	return 0;
2621
2622	if (g_seamless_active)
2623	sw_check_timers();
2624
2625	FD_ZERO(&rfds);
2626	FD_ZERO(&wfds);
2627	FD_SET(rdp_socket, &rfds);
2628	FD_SET(g_x_socket, &rfds);
2629
2630	/* default timeout */
2631	tv.tv_sec = 60;
2632	tv.tv_usec = 0;
2633
2634	#ifdef WITH_RDPSND
2635	rdpsnd_add_fds(&n, &rfds, &wfds, &tv);
2636	#endif
2637
2638	#ifdef WITH_RDPUSB
2639	rdpusb_add_fds (&n, &rfds, &wfds);
2640	#endif
2641
2642	/* add redirection handles */
2643	rdpdr_add_fds(&n, &rfds, &wfds, &tv, &s_timeout);
2644	seamless_select_timeout(&tv);
2645
2646	n++;
2647
2648	switch (select(n, &rfds, &wfds, NULL, &tv))
2649	{
2650	case -1:
2651	error("select: %s\n", strerror(errno));
2652
2653	case 0:
2654	#ifdef WITH_RDPSND
2655	rdpsnd_check_fds(&rfds, &wfds);
2656	#endif
2657
2658	/* Abort serial read calls */
2659	if (s_timeout)
2660	rdpdr_check_fds(&rfds, &wfds, (RD_BOOL) True);
2661	continue;
2662	}
2663
2664	#ifdef WITH_RDPUSB
2665	rdpusb_check_fds (&rfds, &wfds);
2666	#endif
2667
2668	#ifdef WITH_RDPSND
2669	rdpsnd_check_fds(&rfds, &wfds);
2670	#endif
2671
2672	rdpdr_check_fds(&rfds, &wfds, (RD_BOOL) False);
2673
2674	if (FD_ISSET(rdp_socket, &rfds))
2675	return 1;
2676
2677	}
2678	}
2679
2680	void
2681	ui_move_pointer(int x, int y)
2682	{
2683	XWarpPointer(g_display, g_wnd, g_wnd, 0, 0, 0, 0, x, y);
2684	}
2685
2686	RD_HBITMAP
2687	ui_create_bitmap(int width, int height, uint8 * data)
2688	{
2689	XImage *image;
2690	Pixmap bitmap;
2691	uint8 *tdata;
2692	int bitmap_pad;
2693
2694	if (g_server_depth == 8)
2695	{
2696	bitmap_pad = 8;
2697	}
2698	else
2699	{
2700	bitmap_pad = g_bpp;
2701
2702	if (g_bpp == 24)
2703	bitmap_pad = 32;
2704	}
2705
2706	tdata = (g_owncolmap ? data : translate_image(width, height, data));
2707	bitmap = XCreatePixmap(g_display, g_wnd, width, height, g_depth);
2708	image = XCreateImage(g_display, g_visual, g_depth, ZPixmap, 0,
2709	(char *) tdata, width, height, bitmap_pad, 0);
2710
2711	XPutImage(g_display, bitmap, g_create_bitmap_gc, image, 0, 0, 0, 0, width, height);
2712
2713	XFree(image);
2714	if (tdata != data)
2715	xfree(tdata);
2716	return (RD_HBITMAP) bitmap;
2717	}
2718
2719	void
2720	ui_paint_bitmap(int x, int y, int cx, int cy, int width, int height, uint8 * data)
2721	{
2722	XImage *image;
2723	uint8 *tdata;
2724	int bitmap_pad;
2725
2726	if (g_server_depth == 8)
2727	{
2728	bitmap_pad = 8;
2729	}
2730	else
2731	{
2732	bitmap_pad = g_bpp;
2733
2734	if (g_bpp == 24)
2735	bitmap_pad = 32;
2736	}
2737
2738	tdata = (g_owncolmap ? data : translate_image(width, height, data));
2739	image = XCreateImage(g_display, g_visual, g_depth, ZPixmap, 0,
2740	(char *) tdata, width, height, bitmap_pad, 0);
2741
2742	if (g_ownbackstore)
2743	{
2744	XPutImage(g_display, g_backstore, g_gc, image, 0, 0, x, y, cx, cy);
2745	XCopyArea(g_display, g_backstore, g_wnd, g_gc, x, y, cx, cy, x, y);
2746	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
2747	(g_display, g_backstore, sw->wnd, g_gc, x, y, cx, cy,
2748	x - sw->xoffset, y - sw->yoffset));
2749	}
2750	else
2751	{
2752	XPutImage(g_display, g_wnd, g_gc, image, 0, 0, x, y, cx, cy);
2753	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
2754	(g_display, g_wnd, sw->wnd, g_gc, x, y, cx, cy,
2755	x - sw->xoffset, y - sw->yoffset));
2756	}
2757
2758	XFree(image);
2759	if (tdata != data)
2760	xfree(tdata);
2761	}
2762
2763	void
2764	ui_destroy_bitmap(RD_HBITMAP bmp)
2765	{
2766	XFreePixmap(g_display, (Pixmap) bmp);
2767	}
2768
2769	RD_HGLYPH
2770	ui_create_glyph(int width, int height, uint8 * data)
2771	{
2772	XImage *image;
2773	Pixmap bitmap;
2774	int scanline;
2775
2776	scanline = (width + 7) / 8;
2777
2778	bitmap = XCreatePixmap(g_display, g_wnd, width, height, 1);
2779	if (g_create_glyph_gc == 0)
2780	g_create_glyph_gc = XCreateGC(g_display, bitmap, 0, NULL);
2781
2782	image = XCreateImage(g_display, g_visual, 1, ZPixmap, 0, (char *) data,
2783	width, height, 8, scanline);
2784	image->byte_order = MSBFirst;
2785	image->bitmap_bit_order = MSBFirst;
2786	XInitImage(image);
2787
2788	XPutImage(g_display, bitmap, g_create_glyph_gc, image, 0, 0, 0, 0, width, height);
2789
2790	XFree(image);
2791	return (RD_HGLYPH) bitmap;
2792	}
2793
2794	void
2795	ui_destroy_glyph(RD_HGLYPH glyph)
2796	{
2797	XFreePixmap(g_display, (Pixmap) glyph);
2798	}
2799
2800	RD_HCURSOR
2801	ui_create_cursor(unsigned int x, unsigned int y, int width, int height,
2802	uint8 * andmask, uint8 * xormask)
2803	{
2804	RD_HGLYPH maskglyph, cursorglyph;
2805	XColor bg, fg;
2806	Cursor xcursor;
2807	uint8 cursor, pcursor;
2808	uint8 mask, pmask;
2809	uint8 nextbit;
2810	int scanline, offset;
2811	int i, j;
2812
2813	scanline = (width + 7) / 8;
2814	offset = scanline * height;
2815
2816	cursor = (uint8 *) xmalloc(offset);
2817	memset(cursor, 0, offset);
2818
2819	mask = (uint8 *) xmalloc(offset);
2820	memset(mask, 0, offset);
2821
2822	/* approximate AND and XOR masks with a monochrome X pointer */
2823	for (i = 0; i < height; i++)
2824	{
2825	offset -= scanline;
2826	pcursor = &cursor[offset];
2827	pmask = &mask[offset];
2828
2829	for (j = 0; j < scanline; j++)
2830	{
2831	for (nextbit = 0x80; nextbit != 0; nextbit >>= 1)
2832	{
2833	if (xormask[0] \|\| xormask[1] \|\| xormask[2])
2834	{
2835	pcursor \|= (~(andmask) & nextbit);
2836	*pmask \|= nextbit;
2837	}
2838	else
2839	{
2840	pcursor \|= ((andmask) & nextbit);
2841	pmask \|= (~(andmask) & nextbit);
2842	}
2843
2844	xormask += 3;
2845	}
2846
2847	andmask++;
2848	pcursor++;
2849	pmask++;
2850	}
2851	}
2852
2853	fg.red = fg.blue = fg.green = 0xffff;
2854	bg.red = bg.blue = bg.green = 0x0000;
2855	fg.flags = bg.flags = DoRed \| DoBlue \| DoGreen;
2856
2857	cursorglyph = ui_create_glyph(width, height, cursor);
2858	maskglyph = ui_create_glyph(width, height, mask);
2859
2860	xcursor =
2861	XCreatePixmapCursor(g_display, (Pixmap) cursorglyph,
2862	(Pixmap) maskglyph, &fg, &bg, x, y);
2863
2864	ui_destroy_glyph(maskglyph);
2865	ui_destroy_glyph(cursorglyph);
2866	xfree(mask);
2867	xfree(cursor);
2868	return (RD_HCURSOR) xcursor;
2869	}
2870
2871	void
2872	ui_set_cursor(RD_HCURSOR cursor)
2873	{
2874	g_current_cursor = (Cursor) cursor;
2875	XDefineCursor(g_display, g_wnd, g_current_cursor);
2876	ON_ALL_SEAMLESS_WINDOWS(XDefineCursor, (g_display, sw->wnd, g_current_cursor));
2877	}
2878
2879	void
2880	ui_destroy_cursor(RD_HCURSOR cursor)
2881	{
2882	XFreeCursor(g_display, (Cursor) cursor);
2883	}
2884
2885	void
2886	ui_set_null_cursor(void)
2887	{
2888	ui_set_cursor(g_null_cursor);
2889	}
2890
2891	#define MAKE_XCOLOR(xc,c) \
2892	(xc)->red = ((c)->red << 8) \| (c)->red; \
2893	(xc)->green = ((c)->green << 8) \| (c)->green; \
2894	(xc)->blue = ((c)->blue << 8) \| (c)->blue; \
2895	(xc)->flags = DoRed \| DoGreen \| DoBlue;
2896
2897
2898	RD_HCOLOURMAP
2899	ui_create_colourmap(COLOURMAP * colours)
2900	{
2901	COLOURENTRY *entry;
2902	int i, ncolours = colours->ncolours;
2903	if (!g_owncolmap)
2904	{
2905	uint32 map = (uint32 ) xmalloc(sizeof(g_colmap) ncolours);
2906	XColor xentry;
2907	XColor xc_cache[256];
2908	uint32 colour;
2909	int colLookup = 256;
2910	for (i = 0; i < ncolours; i++)
2911	{
2912	entry = &colours->colours[i];
2913	MAKE_XCOLOR(&xentry, entry);
2914
2915	if (XAllocColor(g_display, g_xcolmap, &xentry) == 0)
2916	{
2917	/* Allocation failed, find closest match. */
2918	int j = 256;
2919	int nMinDist = 3 * 256 * 256;
2920	long nDist = nMinDist;
2921
2922	/* only get the colors once */
2923	while (colLookup--)
2924	{
2925	xc_cache[colLookup].pixel = colLookup;
2926	xc_cache[colLookup].red = xc_cache[colLookup].green =
2927	xc_cache[colLookup].blue = 0;
2928	xc_cache[colLookup].flags = 0;
2929	XQueryColor(g_display,
2930	DefaultColormap(g_display,
2931	DefaultScreen(g_display)),
2932	&xc_cache[colLookup]);
2933	}
2934	colLookup = 0;
2935
2936	/* approximate the pixel */
2937	while (j--)
2938	{
2939	if (xc_cache[j].flags)
2940	{
2941	nDist = ((long) (xc_cache[j].red >> 8) -
2942	(long) (xentry.red >> 8)) *
2943	((long) (xc_cache[j].red >> 8) -
2944	(long) (xentry.red >> 8)) +
2945	((long) (xc_cache[j].green >> 8) -
2946	(long) (xentry.green >> 8)) *
2947	((long) (xc_cache[j].green >> 8) -
2948	(long) (xentry.green >> 8)) +
2949	((long) (xc_cache[j].blue >> 8) -
2950	(long) (xentry.blue >> 8)) *
2951	((long) (xc_cache[j].blue >> 8) -
2952	(long) (xentry.blue >> 8));
2953	}
2954	if (nDist < nMinDist)
2955	{
2956	nMinDist = nDist;
2957	xentry.pixel = j;
2958	}
2959	}
2960	}
2961	colour = xentry.pixel;
2962
2963	/* update our cache */
2964	if (xentry.pixel < 256)
2965	{
2966	xc_cache[xentry.pixel].red = xentry.red;
2967	xc_cache[xentry.pixel].green = xentry.green;
2968	xc_cache[xentry.pixel].blue = xentry.blue;
2969
2970	}
2971
2972	map[i] = colour;
2973	}
2974	return map;
2975	}
2976	else
2977	{
2978	XColor xcolours, xentry;
2979	Colormap map;
2980
2981	xcolours = (XColor ) xmalloc(sizeof(XColor) ncolours);
2982	for (i = 0; i < ncolours; i++)
2983	{
2984	entry = &colours->colours[i];
2985	xentry = &xcolours[i];
2986	xentry->pixel = i;
2987	MAKE_XCOLOR(xentry, entry);
2988	}
2989
2990	map = XCreateColormap(g_display, g_wnd, g_visual, AllocAll);
2991	XStoreColors(g_display, map, xcolours, ncolours);
2992
2993	xfree(xcolours);
2994	return (RD_HCOLOURMAP) map;
2995	}
2996	}
2997
2998	void
2999	ui_destroy_colourmap(RD_HCOLOURMAP map)
3000	{
3001	if (!g_owncolmap)
3002	xfree(map);
3003	else
3004	XFreeColormap(g_display, (Colormap) map);
3005	}
3006
3007	void
3008	ui_set_colourmap(RD_HCOLOURMAP map)
3009	{
3010	if (!g_owncolmap)
3011	{
3012	if (g_colmap)
3013	xfree(g_colmap);
3014
3015	g_colmap = (uint32 *) map;
3016	}
3017	else
3018	{
3019	XSetWindowColormap(g_display, g_wnd, (Colormap) map);
3020	ON_ALL_SEAMLESS_WINDOWS(XSetWindowColormap, (g_display, sw->wnd, (Colormap) map));
3021	}
3022	}
3023
3024	void
3025	ui_set_clip(int x, int y, int cx, int cy)
3026	{
3027	g_clip_rectangle.x = x;
3028	g_clip_rectangle.y = y;
3029	g_clip_rectangle.width = cx;
3030	g_clip_rectangle.height = cy;
3031	XSetClipRectangles(g_display, g_gc, 0, 0, &g_clip_rectangle, 1, YXBanded);
3032	}
3033
3034	void
3035	ui_reset_clip(void)
3036	{
3037	g_clip_rectangle.x = 0;
3038	g_clip_rectangle.y = 0;
3039	g_clip_rectangle.width = g_width;
3040	g_clip_rectangle.height = g_height;
3041	XSetClipRectangles(g_display, g_gc, 0, 0, &g_clip_rectangle, 1, YXBanded);
3042	}
3043
3044	void
3045	ui_bell(void)
3046	{
3047	XBell(g_display, 0);
3048	}
3049
3050	void
3051	ui_destblt(uint8 opcode,
3052	/* dest */ int x, int y, int cx, int cy)
3053	{
3054	SET_FUNCTION(opcode);
3055	FILL_RECTANGLE(x, y, cx, cy);
3056	RESET_FUNCTION(opcode);
3057	}
3058
3059	static uint8 hatch_patterns[] = {
3060	0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, /* 0 - bsHorizontal */
3061	0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, /* 1 - bsVertical */
3062	0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, /* 2 - bsFDiagonal */
3063	0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, /* 3 - bsBDiagonal */
3064	0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08, /* 4 - bsCross */
3065	0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 /* 5 - bsDiagCross */
3066	};
3067
3068	void
3069	ui_patblt(uint8 opcode,
3070	/* dest */ int x, int y, int cx, int cy,
3071	/* brush / BRUSH brush, int bgcolour, int fgcolour)
3072	{
3073	Pixmap fill;
3074	uint8 i, ipattern[8];
3075
3076	SET_FUNCTION(opcode);
3077
3078	switch (brush->style)
3079	{
3080	case 0: /* Solid */
3081	SET_FOREGROUND(fgcolour);
3082	FILL_RECTANGLE_BACKSTORE(x, y, cx, cy);
3083	break;
3084
3085	case 2: /* Hatch */
3086	fill = (Pixmap) ui_create_glyph(8, 8,
3087	hatch_patterns + brush->pattern[0] * 8);
3088	SET_FOREGROUND(fgcolour);
3089	SET_BACKGROUND(bgcolour);
3090	XSetFillStyle(g_display, g_gc, FillOpaqueStippled);
3091	XSetStipple(g_display, g_gc, fill);
3092	XSetTSOrigin(g_display, g_gc, brush->xorigin, brush->yorigin);
3093	FILL_RECTANGLE_BACKSTORE(x, y, cx, cy);
3094	XSetFillStyle(g_display, g_gc, FillSolid);
3095	XSetTSOrigin(g_display, g_gc, 0, 0);
3096	ui_destroy_glyph((RD_HGLYPH) fill);
3097	break;
3098
3099	case 3: /* Pattern */
3100	for (i = 0; i != 8; i++)
3101	ipattern[7 - i] = brush->pattern[i];
3102	fill = (Pixmap) ui_create_glyph(8, 8, ipattern);
3103	SET_FOREGROUND(bgcolour);
3104	SET_BACKGROUND(fgcolour);
3105	XSetFillStyle(g_display, g_gc, FillOpaqueStippled);
3106	XSetStipple(g_display, g_gc, fill);
3107	XSetTSOrigin(g_display, g_gc, brush->xorigin, brush->yorigin);
3108	FILL_RECTANGLE_BACKSTORE(x, y, cx, cy);
3109	XSetFillStyle(g_display, g_gc, FillSolid);
3110	XSetTSOrigin(g_display, g_gc, 0, 0);
3111	ui_destroy_glyph((RD_HGLYPH) fill);
3112	break;
3113
3114	default:
3115	unimpl("brush %d\n", brush->style);
3116	}
3117
3118	RESET_FUNCTION(opcode);
3119
3120	if (g_ownbackstore)
3121	XCopyArea(g_display, g_backstore, g_wnd, g_gc, x, y, cx, cy, x, y);
3122	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
3123	(g_display, g_ownbackstore ? g_backstore : g_wnd, sw->wnd, g_gc,
3124	x, y, cx, cy, x - sw->xoffset, y - sw->yoffset));
3125	}
3126
3127	void
3128	ui_screenblt(uint8 opcode,
3129	/* dest */ int x, int y, int cx, int cy,
3130	/* src */ int srcx, int srcy)
3131	{
3132	SET_FUNCTION(opcode);
3133	if (g_ownbackstore)
3134	{
3135	XCopyArea(g_display, g_Unobscured ? g_wnd : g_backstore,
3136	g_wnd, g_gc, srcx, srcy, cx, cy, x, y);
3137	XCopyArea(g_display, g_backstore, g_backstore, g_gc, srcx, srcy, cx, cy, x, y);
3138	}
3139	else
3140	{
3141	XCopyArea(g_display, g_wnd, g_wnd, g_gc, srcx, srcy, cx, cy, x, y);
3142	}
3143
3144	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
3145	(g_display, g_ownbackstore ? g_backstore : g_wnd,
3146	sw->wnd, g_gc, x, y, cx, cy, x - sw->xoffset, y - sw->yoffset));
3147
3148	RESET_FUNCTION(opcode);
3149	}
3150
3151	void
3152	ui_memblt(uint8 opcode,
3153	/* dest */ int x, int y, int cx, int cy,
3154	/* src */ RD_HBITMAP src, int srcx, int srcy)
3155	{
3156	SET_FUNCTION(opcode);
3157	XCopyArea(g_display, (Pixmap) src, g_wnd, g_gc, srcx, srcy, cx, cy, x, y);
3158	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
3159	(g_display, (Pixmap) src, sw->wnd, g_gc,
3160	srcx, srcy, cx, cy, x - sw->xoffset, y - sw->yoffset));
3161	if (g_ownbackstore)
3162	XCopyArea(g_display, (Pixmap) src, g_backstore, g_gc, srcx, srcy, cx, cy, x, y);
3163	RESET_FUNCTION(opcode);
3164	}
3165
3166	void
3167	ui_triblt(uint8 opcode,
3168	/* dest */ int x, int y, int cx, int cy,
3169	/* src */ RD_HBITMAP src, int srcx, int srcy,
3170	/* brush / BRUSH brush, int bgcolour, int fgcolour)
3171	{
3172	/* This is potentially difficult to do in general. Until someone
3173	comes up with a more efficient way of doing it I am using cases. */
3174
3175	switch (opcode)
3176	{
3177	case 0x69: /* PDSxxn */
3178	ui_memblt(ROP2_XOR, x, y, cx, cy, src, srcx, srcy);
3179	ui_patblt(ROP2_NXOR, x, y, cx, cy, brush, bgcolour, fgcolour);
3180	break;
3181
3182	case 0xb8: /* PSDPxax */
3183	ui_patblt(ROP2_XOR, x, y, cx, cy, brush, bgcolour, fgcolour);
3184	ui_memblt(ROP2_AND, x, y, cx, cy, src, srcx, srcy);
3185	ui_patblt(ROP2_XOR, x, y, cx, cy, brush, bgcolour, fgcolour);
3186	break;
3187
3188	case 0xc0: /* PSa */
3189	ui_memblt(ROP2_COPY, x, y, cx, cy, src, srcx, srcy);
3190	ui_patblt(ROP2_AND, x, y, cx, cy, brush, bgcolour, fgcolour);
3191	break;
3192
3193	default:
3194	unimpl("triblt 0x%x\n", opcode);
3195	ui_memblt(ROP2_COPY, x, y, cx, cy, src, srcx, srcy);
3196	}
3197	}
3198
3199	void
3200	ui_line(uint8 opcode,
3201	/* dest */ int startx, int starty, int endx, int endy,
3202	/* pen / PEN pen)
3203	{
3204	SET_FUNCTION(opcode);
3205	SET_FOREGROUND(pen->colour);
3206	XDrawLine(g_display, g_wnd, g_gc, startx, starty, endx, endy);
3207	ON_ALL_SEAMLESS_WINDOWS(XDrawLine, (g_display, sw->wnd, g_gc,
3208	startx - sw->xoffset, starty - sw->yoffset,
3209	endx - sw->xoffset, endy - sw->yoffset));
3210	if (g_ownbackstore)
3211	XDrawLine(g_display, g_backstore, g_gc, startx, starty, endx, endy);
3212	RESET_FUNCTION(opcode);
3213	}
3214
3215	void
3216	ui_rect(
3217	/* dest */ int x, int y, int cx, int cy,
3218	/* brush */ int colour)
3219	{
3220	SET_FOREGROUND(colour);
3221	FILL_RECTANGLE(x, y, cx, cy);
3222	}
3223
3224	void
3225	ui_polygon(uint8 opcode,
3226	/* mode */ uint8 fillmode,
3227	/* dest / RD_POINT point, int npoints,
3228	/* brush / BRUSH brush, int bgcolour, int fgcolour)
3229	{
3230	uint8 style, i, ipattern[8];
3231	Pixmap fill;
3232
3233	SET_FUNCTION(opcode);
3234
3235	switch (fillmode)
3236	{
3237	case ALTERNATE:
3238	XSetFillRule(g_display, g_gc, EvenOddRule);
3239	break;
3240	case WINDING:
3241	XSetFillRule(g_display, g_gc, WindingRule);
3242	break;
3243	default:
3244	unimpl("fill mode %d\n", fillmode);
3245	}
3246
3247	if (brush)
3248	style = brush->style;
3249	else
3250	style = 0;
3251
3252	switch (style)
3253	{
3254	case 0: /* Solid */
3255	SET_FOREGROUND(fgcolour);
3256	FILL_POLYGON((XPoint *) point, npoints);
3257	break;
3258
3259	case 2: /* Hatch */
3260	fill = (Pixmap) ui_create_glyph(8, 8,
3261	hatch_patterns + brush->pattern[0] * 8);
3262	SET_FOREGROUND(fgcolour);
3263	SET_BACKGROUND(bgcolour);
3264	XSetFillStyle(g_display, g_gc, FillOpaqueStippled);
3265	XSetStipple(g_display, g_gc, fill);
3266	XSetTSOrigin(g_display, g_gc, brush->xorigin, brush->yorigin);
3267	FILL_POLYGON((XPoint *) point, npoints);
3268	XSetFillStyle(g_display, g_gc, FillSolid);
3269	XSetTSOrigin(g_display, g_gc, 0, 0);
3270	ui_destroy_glyph((RD_HGLYPH) fill);
3271	break;
3272
3273	case 3: /* Pattern */
3274	for (i = 0; i != 8; i++)
3275	ipattern[7 - i] = brush->pattern[i];
3276	fill = (Pixmap) ui_create_glyph(8, 8, ipattern);
3277	SET_FOREGROUND(bgcolour);
3278	SET_BACKGROUND(fgcolour);
3279	XSetFillStyle(g_display, g_gc, FillOpaqueStippled);
3280	XSetStipple(g_display, g_gc, fill);
3281	XSetTSOrigin(g_display, g_gc, brush->xorigin, brush->yorigin);
3282	FILL_POLYGON((XPoint *) point, npoints);
3283	XSetFillStyle(g_display, g_gc, FillSolid);
3284	XSetTSOrigin(g_display, g_gc, 0, 0);
3285	ui_destroy_glyph((RD_HGLYPH) fill);
3286	break;
3287
3288	default:
3289	unimpl("brush %d\n", brush->style);
3290	}
3291
3292	RESET_FUNCTION(opcode);
3293	}
3294
3295	void
3296	ui_polyline(uint8 opcode,
3297	/* dest / RD_POINT points, int npoints,
3298	/* pen / PEN pen)
3299	{
3300	/* TODO: set join style */
3301	SET_FUNCTION(opcode);
3302	SET_FOREGROUND(pen->colour);
3303	XDrawLines(g_display, g_wnd, g_gc, (XPoint *) points, npoints, CoordModePrevious);
3304	if (g_ownbackstore)
3305	XDrawLines(g_display, g_backstore, g_gc, (XPoint *) points, npoints,
3306	CoordModePrevious);
3307
3308	ON_ALL_SEAMLESS_WINDOWS(seamless_XDrawLines,
3309	(sw->wnd, (XPoint *) points, npoints, sw->xoffset, sw->yoffset));
3310
3311	RESET_FUNCTION(opcode);
3312	}
3313
3314	void
3315	ui_ellipse(uint8 opcode,
3316	/* mode */ uint8 fillmode,
3317	/* dest */ int x, int y, int cx, int cy,
3318	/* brush / BRUSH brush, int bgcolour, int fgcolour)
3319	{
3320	uint8 style, i, ipattern[8];
3321	Pixmap fill;
3322
3323	SET_FUNCTION(opcode);
3324
3325	if (brush)
3326	style = brush->style;
3327	else
3328	style = 0;
3329
3330	switch (style)
3331	{
3332	case 0: /* Solid */
3333	SET_FOREGROUND(fgcolour);
3334	DRAW_ELLIPSE(x, y, cx, cy, fillmode);
3335	break;
3336
3337	case 2: /* Hatch */
3338	fill = (Pixmap) ui_create_glyph(8, 8,
3339	hatch_patterns + brush->pattern[0] * 8);
3340	SET_FOREGROUND(fgcolour);
3341	SET_BACKGROUND(bgcolour);
3342	XSetFillStyle(g_display, g_gc, FillOpaqueStippled);
3343	XSetStipple(g_display, g_gc, fill);
3344	XSetTSOrigin(g_display, g_gc, brush->xorigin, brush->yorigin);
3345	DRAW_ELLIPSE(x, y, cx, cy, fillmode);
3346	XSetFillStyle(g_display, g_gc, FillSolid);
3347	XSetTSOrigin(g_display, g_gc, 0, 0);
3348	ui_destroy_glyph((RD_HGLYPH) fill);
3349	break;
3350
3351	case 3: /* Pattern */
3352	for (i = 0; i != 8; i++)
3353	ipattern[7 - i] = brush->pattern[i];
3354	fill = (Pixmap) ui_create_glyph(8, 8, ipattern);
3355	SET_FOREGROUND(bgcolour);
3356	SET_BACKGROUND(fgcolour);
3357	XSetFillStyle(g_display, g_gc, FillOpaqueStippled);
3358	XSetStipple(g_display, g_gc, fill);
3359	XSetTSOrigin(g_display, g_gc, brush->xorigin, brush->yorigin);
3360	DRAW_ELLIPSE(x, y, cx, cy, fillmode);
3361	XSetFillStyle(g_display, g_gc, FillSolid);
3362	XSetTSOrigin(g_display, g_gc, 0, 0);
3363	ui_destroy_glyph((RD_HGLYPH) fill);
3364	break;
3365
3366	default:
3367	unimpl("brush %d\n", brush->style);
3368	}
3369
3370	RESET_FUNCTION(opcode);
3371	}
3372
3373	/* warning, this function only draws on wnd or backstore, not both */
3374	void
3375	ui_draw_glyph(int mixmode,
3376	/* dest */ int x, int y, int cx, int cy,
3377	/* src */ RD_HGLYPH glyph, int srcx, int srcy,
3378	int bgcolour, int fgcolour)
3379	{
3380	SET_FOREGROUND(fgcolour);
3381	SET_BACKGROUND(bgcolour);
3382
3383	XSetFillStyle(g_display, g_gc,
3384	(mixmode == MIX_TRANSPARENT) ? FillStippled : FillOpaqueStippled);
3385	XSetStipple(g_display, g_gc, (Pixmap) glyph);
3386	XSetTSOrigin(g_display, g_gc, x, y);
3387
3388	FILL_RECTANGLE_BACKSTORE(x, y, cx, cy);
3389
3390	XSetFillStyle(g_display, g_gc, FillSolid);
3391	}
3392
3393	#define DO_GLYPH(ttext,idx) \
3394	{\
3395	glyph = cache_get_font (font, ttext[idx]);\
3396	if (!(flags & TEXT2_IMPLICIT_X))\
3397	{\
3398	xyoffset = ttext[++idx];\
3399	if ((xyoffset & 0x80))\
3400	{\
3401	if (flags & TEXT2_VERTICAL)\
3402	y += ttext[idx+1] \| (ttext[idx+2] << 8);\
3403	else\
3404	x += ttext[idx+1] \| (ttext[idx+2] << 8);\
3405	idx += 2;\
3406	}\
3407	else\
3408	{\
3409	if (flags & TEXT2_VERTICAL)\
3410	y += xyoffset;\
3411	else\
3412	x += xyoffset;\
3413	}\
3414	}\
3415	if (glyph != NULL)\
3416	{\
3417	x1 = x + glyph->offset;\
3418	y1 = y + glyph->baseline;\
3419	XSetStipple(g_display, g_gc, (Pixmap) glyph->pixmap);\
3420	XSetTSOrigin(g_display, g_gc, x1, y1);\
3421	FILL_RECTANGLE_BACKSTORE(x1, y1, glyph->width, glyph->height);\
3422	if (flags & TEXT2_IMPLICIT_X)\
3423	x += glyph->width;\
3424	}\
3425	}
3426
3427	void
3428	ui_draw_text(uint8 font, uint8 flags, uint8 opcode, int mixmode, int x, int y,
3429	int clipx, int clipy, int clipcx, int clipcy,
3430	int boxx, int boxy, int boxcx, int boxcy, BRUSH * brush,
3431	int bgcolour, int fgcolour, uint8 * text, uint8 length)
3432	{
3433	/* TODO: use brush appropriately */
3434
3435	FONTGLYPH *glyph;
3436	int i, j, xyoffset, x1, y1;
3437	DATABLOB *entry;
3438
3439	SET_FOREGROUND(bgcolour);
3440
3441	/* Sometimes, the boxcx value is something really large, like
3442	32691. This makes XCopyArea fail with Xvnc. The code below
3443	is a quick fix. */
3444	if (boxx + boxcx > g_width)
3445	boxcx = g_width - boxx;
3446
3447	if (boxcx > 1)
3448	{
3449	FILL_RECTANGLE_BACKSTORE(boxx, boxy, boxcx, boxcy);
3450	}
3451	else if (mixmode == MIX_OPAQUE)
3452	{
3453	FILL_RECTANGLE_BACKSTORE(clipx, clipy, clipcx, clipcy);
3454	}
3455
3456	SET_FOREGROUND(fgcolour);
3457	SET_BACKGROUND(bgcolour);
3458	XSetFillStyle(g_display, g_gc, FillStippled);
3459
3460	/* Paint text, character by character */
3461	for (i = 0; i < length;)
3462	{
3463	switch (text[i])
3464	{
3465	case 0xff:
3466	/* At least two bytes needs to follow */
3467	if (i + 3 > length)
3468	{
3469	warning("Skipping short 0xff command:");
3470	for (j = 0; j < length; j++)
3471	fprintf(stderr, "%02x ", text[j]);
3472	fprintf(stderr, "\n");
3473	i = length = 0;
3474	break;
3475	}
3476	cache_put_text(text[i + 1], text, text[i + 2]);
3477	i += 3;
3478	length -= i;
3479	/* this will move pointer from start to first character after FF command */
3480	text = &(text[i]);
3481	i = 0;
3482	break;
3483
3484	case 0xfe:
3485	/* At least one byte needs to follow */
3486	if (i + 2 > length)
3487	{
3488	warning("Skipping short 0xfe command:");
3489	for (j = 0; j < length; j++)
3490	fprintf(stderr, "%02x ", text[j]);
3491	fprintf(stderr, "\n");
3492	i = length = 0;
3493	break;
3494	}
3495	entry = cache_get_text(text[i + 1]);
3496	if (entry->data != NULL)
3497	{
3498	if ((((uint8 *) (entry->data))[1] == 0)
3499	&& (!(flags & TEXT2_IMPLICIT_X)) && (i + 2 < length))
3500	{
3501	if (flags & TEXT2_VERTICAL)
3502	y += text[i + 2];
3503	else
3504	x += text[i + 2];
3505	}
3506	for (j = 0; j < entry->size; j++)
3507	DO_GLYPH(((uint8 *) (entry->data)), j);
3508	}
3509	if (i + 2 < length)
3510	i += 3;
3511	else
3512	i += 2;
3513	length -= i;
3514	/* this will move pointer from start to first character after FE command */
3515	text = &(text[i]);
3516	i = 0;
3517	break;
3518
3519	default:
3520	DO_GLYPH(text, i);
3521	i++;
3522	break;
3523	}
3524	}
3525
3526	XSetFillStyle(g_display, g_gc, FillSolid);
3527
3528	if (g_ownbackstore)
3529	{
3530	if (boxcx > 1)
3531	{
3532	XCopyArea(g_display, g_backstore, g_wnd, g_gc, boxx,
3533	boxy, boxcx, boxcy, boxx, boxy);
3534	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
3535	(g_display, g_backstore, sw->wnd, g_gc,
3536	boxx, boxy,
3537	boxcx, boxcy,
3538	boxx - sw->xoffset, boxy - sw->yoffset));
3539	}
3540	else
3541	{
3542	XCopyArea(g_display, g_backstore, g_wnd, g_gc, clipx,
3543	clipy, clipcx, clipcy, clipx, clipy);
3544	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
3545	(g_display, g_backstore, sw->wnd, g_gc,
3546	clipx, clipy,
3547	clipcx, clipcy, clipx - sw->xoffset,
3548	clipy - sw->yoffset));
3549	}
3550	}
3551	}
3552
3553	void
3554	ui_desktop_save(uint32 offset, int x, int y, int cx, int cy)
3555	{
3556	Pixmap pix;
3557	XImage *image;
3558
3559	if (g_ownbackstore)
3560	{
3561	image = XGetImage(g_display, g_backstore, x, y, cx, cy, AllPlanes, ZPixmap);
3562	exit_if_null(image);
3563	}
3564	else
3565	{
3566	pix = XCreatePixmap(g_display, g_wnd, cx, cy, g_depth);
3567	XCopyArea(g_display, g_wnd, pix, g_gc, x, y, cx, cy, 0, 0);
3568	image = XGetImage(g_display, pix, 0, 0, cx, cy, AllPlanes, ZPixmap);
3569	exit_if_null(image);
3570	XFreePixmap(g_display, pix);
3571	}
3572
3573	offset *= g_bpp / 8;
3574	cache_put_desktop(offset, cx, cy, image->bytes_per_line, g_bpp / 8, (uint8 *) image->data);
3575
3576	XDestroyImage(image);
3577	}
3578
3579	void
3580	ui_desktop_restore(uint32 offset, int x, int y, int cx, int cy)
3581	{
3582	XImage *image;
3583	uint8 *data;
3584
3585	offset *= g_bpp / 8;
3586	data = cache_get_desktop(offset, cx, cy, g_bpp / 8);
3587	if (data == NULL)
3588	return;
3589
3590	image = XCreateImage(g_display, g_visual, g_depth, ZPixmap, 0,
3591	(char *) data, cx, cy, g_bpp, 0);
3592
3593	if (g_ownbackstore)
3594	{
3595	XPutImage(g_display, g_backstore, g_gc, image, 0, 0, x, y, cx, cy);
3596	XCopyArea(g_display, g_backstore, g_wnd, g_gc, x, y, cx, cy, x, y);
3597	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
3598	(g_display, g_backstore, sw->wnd, g_gc,
3599	x, y, cx, cy, x - sw->xoffset, y - sw->yoffset));
3600	}
3601	else
3602	{
3603	XPutImage(g_display, g_wnd, g_gc, image, 0, 0, x, y, cx, cy);
3604	ON_ALL_SEAMLESS_WINDOWS(XCopyArea,
3605	(g_display, g_wnd, sw->wnd, g_gc, x, y, cx, cy,
3606	x - sw->xoffset, y - sw->yoffset));
3607	}
3608
3609	XFree(image);
3610	}
3611
3612	/* these do nothing here but are used in uiports */
3613	void
3614	ui_begin_update(void)
3615	{
3616	}
3617
3618	void
3619	ui_end_update(void)
3620	{
3621	}
3622
3623
3624	void
3625	ui_seamless_begin(RD_BOOL hidden)
3626	{
3627	if (!g_seamless_rdp)
3628	return;
3629
3630	if (g_seamless_started)
3631	return;
3632
3633	g_seamless_started = True;
3634	g_seamless_hidden = hidden;
3635
3636	if (!hidden)
3637	ui_seamless_toggle();
3638	}
3639
3640
3641	void
3642	ui_seamless_hide_desktop()
3643	{
3644	if (!g_seamless_rdp)
3645	return;
3646
3647	if (!g_seamless_started)
3648	return;
3649
3650	if (g_seamless_active)
3651	ui_seamless_toggle();
3652
3653	g_seamless_hidden = True;
3654	}
3655
3656
3657	void
3658	ui_seamless_unhide_desktop()
3659	{
3660	if (!g_seamless_rdp)
3661	return;
3662
3663	if (!g_seamless_started)
3664	return;
3665
3666	g_seamless_hidden = False;
3667
3668	ui_seamless_toggle();
3669	}
3670
3671
3672	void
3673	ui_seamless_toggle()
3674	{
3675	if (!g_seamless_rdp)
3676	return;
3677
3678	if (!g_seamless_started)
3679	return;
3680
3681	if (g_seamless_hidden)
3682	return;
3683
3684	if (g_seamless_active)
3685	{
3686	/* Deactivate */
3687	while (g_seamless_windows)
3688	{
3689	XDestroyWindow(g_display, g_seamless_windows->wnd);
3690	sw_remove_window(g_seamless_windows);
3691	}
3692	XMapWindow(g_display, g_wnd);
3693	}
3694	else
3695	{
3696	/* Activate */
3697	XUnmapWindow(g_display, g_wnd);
3698	seamless_send_sync();
3699	}
3700
3701	g_seamless_active = !g_seamless_active;
3702	}
3703
3704
3705	void
3706	ui_seamless_create_window(unsigned long id, unsigned long group, unsigned long parent,
3707	unsigned long flags)
3708	{
3709	Window wnd;
3710	XSetWindowAttributes attribs;
3711	XClassHint *classhints;
3712	XSizeHints *sizehints;
3713	XWMHints *wmhints;
3714	long input_mask;
3715	seamless_window sw, sw_parent;
3716
3717	if (!g_seamless_active)
3718	return;
3719
3720	/* Ignore CREATEs for existing windows */
3721	sw = sw_get_window_by_id(id);
3722	if (sw)
3723	return;
3724
3725	get_window_attribs(&attribs);
3726	wnd = XCreateWindow(g_display, RootWindowOfScreen(g_screen), -1, -1, 1, 1, 0, g_depth,
3727	InputOutput, g_visual,
3728	CWBackPixel \| CWBackingStore \| CWColormap \| CWBorderPixel, &attribs);
3729
3730	XStoreName(g_display, wnd, "SeamlessRDP");
3731	ewmh_set_wm_name(wnd, "SeamlessRDP");
3732
3733	mwm_hide_decorations(wnd);
3734
3735	classhints = XAllocClassHint();
3736	if (classhints != NULL)
3737	{
3738	classhints->res_name = "rdesktop";
3739	classhints->res_class = "SeamlessRDP";
3740	XSetClassHint(g_display, wnd, classhints);
3741	XFree(classhints);
3742	}
3743
3744	/* WM_NORMAL_HINTS */
3745	sizehints = XAllocSizeHints();
3746	if (sizehints != NULL)
3747	{
3748	sizehints->flags = USPosition;
3749	XSetWMNormalHints(g_display, wnd, sizehints);
3750	XFree(sizehints);
3751	}
3752
3753	/* Parent-less transient windows */
3754	if (parent == 0xFFFFFFFF)
3755	{
3756	XSetTransientForHint(g_display, wnd, RootWindowOfScreen(g_screen));
3757	/* Some buggy wm:s (kwin) do not handle the above, so fake it
3758	using some other hints. */
3759	ewmh_set_window_popup(wnd);
3760	}
3761	/* Normal transient windows */
3762	else if (parent != 0x00000000)
3763	{
3764	sw_parent = sw_get_window_by_id(parent);
3765	if (sw_parent)
3766	XSetTransientForHint(g_display, wnd, sw_parent->wnd);
3767	else
3768	warning("ui_seamless_create_window: No parent window 0x%lx\n", parent);
3769	}
3770
3771	if (flags & SEAMLESSRDP_CREATE_MODAL)
3772	{
3773	/* We do this to support buggy wm:s (cough metacity cough)
3774	somewhat at least */
3775	if (parent == 0x00000000)
3776	XSetTransientForHint(g_display, wnd, RootWindowOfScreen(g_screen));
3777	ewmh_set_window_modal(wnd);
3778	}
3779
3780	if (flags & SEAMLESSRDP_CREATE_TOPMOST)
3781	{
3782	/* Make window always-on-top */
3783	ewmh_set_window_above(wnd);
3784	}
3785
3786	/* FIXME: Support for Input Context:s */
3787
3788	get_input_mask(&input_mask);
3789	input_mask \|= PropertyChangeMask;
3790
3791	XSelectInput(g_display, wnd, input_mask);
3792
3793	/* handle the WM_DELETE_WINDOW protocol. */
3794	XSetWMProtocols(g_display, wnd, &g_kill_atom, 1);
3795
3796	sw = xmalloc(sizeof(seamless_window));
3797
3798	memset(sw, 0, sizeof(seamless_window));
3799
3800	sw->wnd = wnd;
3801	sw->id = id;
3802	sw->group = sw_find_group(group, False);
3803	sw->group->refcnt++;
3804	sw->state = SEAMLESSRDP_NOTYETMAPPED;
3805	sw->desktop = 0;
3806	sw->position_timer = xmalloc(sizeof(struct timeval));
3807	timerclear(sw->position_timer);
3808
3809	sw->outstanding_position = False;
3810	sw->outpos_serial = 0;
3811	sw->outpos_xoffset = sw->outpos_yoffset = 0;
3812	sw->outpos_width = sw->outpos_height = 0;
3813
3814	sw->next = g_seamless_windows;
3815	g_seamless_windows = sw;
3816
3817	/* WM_HINTS */
3818	wmhints = XAllocWMHints();
3819	if (wmhints)
3820	{
3821	wmhints->flags = WindowGroupHint;
3822	wmhints->window_group = sw->group->wnd;
3823	XSetWMHints(g_display, sw->wnd, wmhints);
3824	XFree(wmhints);
3825	}
3826	}
3827
3828
3829	void
3830	ui_seamless_destroy_window(unsigned long id, unsigned long flags)
3831	{
3832	seamless_window *sw;
3833
3834	if (!g_seamless_active)
3835	return;
3836
3837	sw = sw_get_window_by_id(id);
3838	if (!sw)
3839	{
3840	warning("ui_seamless_destroy_window: No information for window 0x%lx\n", id);
3841	return;
3842	}
3843
3844	XDestroyWindow(g_display, sw->wnd);
3845	sw_remove_window(sw);
3846	}
3847
3848
3849	void
3850	ui_seamless_destroy_group(unsigned long id, unsigned long flags)
3851	{
3852	seamless_window sw, sw_next;
3853
3854	if (!g_seamless_active)
3855	return;
3856
3857	for (sw = g_seamless_windows; sw; sw = sw_next)
3858	{
3859	sw_next = sw->next;
3860
3861	if (sw->group->id == id)
3862	{
3863	XDestroyWindow(g_display, sw->wnd);
3864	sw_remove_window(sw);
3865	}
3866	}
3867	}
3868
3869
3870	void
3871	ui_seamless_seticon(unsigned long id, const char *format, int width, int height, int chunk,
3872	const char *data, int chunk_len)
3873	{
3874	seamless_window *sw;
3875
3876	if (!g_seamless_active)
3877	return;
3878
3879	sw = sw_get_window_by_id(id);
3880	if (!sw)
3881	{
3882	warning("ui_seamless_seticon: No information for window 0x%lx\n", id);
3883	return;
3884	}
3885
3886	if (chunk == 0)
3887	{
3888	if (sw->icon_size)
3889	warning("ui_seamless_seticon: New icon started before previous completed\n");
3890
3891	if (strcmp(format, "RGBA") != 0)
3892	{
3893	warning("ui_seamless_seticon: Uknown icon format \"%s\"\n", format);
3894	return;
3895	}
3896
3897	sw->icon_size = width * height * 4;
3898	if (sw->icon_size > 32 * 32 * 4)
3899	{
3900	warning("ui_seamless_seticon: Icon too large (%d bytes)\n", sw->icon_size);
3901	sw->icon_size = 0;
3902	return;
3903	}
3904
3905	sw->icon_offset = 0;
3906	}
3907	else
3908	{
3909	if (!sw->icon_size)
3910	return;
3911	}
3912
3913	if (chunk_len > (sw->icon_size - sw->icon_offset))
3914	{
3915	warning("ui_seamless_seticon: Too large chunk received (%d bytes > %d bytes)\n",
3916	chunk_len, sw->icon_size - sw->icon_offset);
3917	sw->icon_size = 0;
3918	return;
3919	}
3920
3921	memcpy(sw->icon_buffer + sw->icon_offset, data, chunk_len);
3922	sw->icon_offset += chunk_len;
3923
3924	if (sw->icon_offset == sw->icon_size)
3925	{
3926	ewmh_set_icon(sw->wnd, width, height, sw->icon_buffer);
3927	sw->icon_size = 0;
3928	}
3929	}
3930
3931
3932	void
3933	ui_seamless_delicon(unsigned long id, const char *format, int width, int height)
3934	{
3935	seamless_window *sw;
3936
3937	if (!g_seamless_active)
3938	return;
3939
3940	sw = sw_get_window_by_id(id);
3941	if (!sw)
3942	{
3943	warning("ui_seamless_seticon: No information for window 0x%lx\n", id);
3944	return;
3945	}
3946
3947	if (strcmp(format, "RGBA") != 0)
3948	{
3949	warning("ui_seamless_seticon: Uknown icon format \"%s\"\n", format);
3950	return;
3951	}
3952
3953	ewmh_del_icon(sw->wnd, width, height);
3954	}
3955
3956
3957	void
3958	ui_seamless_move_window(unsigned long id, int x, int y, int width, int height, unsigned long flags)
3959	{
3960	seamless_window *sw;
3961
3962	if (!g_seamless_active)
3963	return;
3964
3965	sw = sw_get_window_by_id(id);
3966	if (!sw)
3967	{
3968	warning("ui_seamless_move_window: No information for window 0x%lx\n", id);
3969	return;
3970	}
3971
3972	/* We ignore server updates until it has handled our request. */
3973	if (sw->outstanding_position)
3974	return;
3975
3976	if (!width \|\| !height)
3977	/* X11 windows must be at least 1x1 */
3978	return;
3979
3980	sw->xoffset = x;
3981	sw->yoffset = y;
3982	sw->width = width;
3983	sw->height = height;
3984
3985	/* If we move the window in a maximized state, then KDE won't
3986	accept restoration */
3987	switch (sw->state)
3988	{
3989	case SEAMLESSRDP_MINIMIZED:
3990	case SEAMLESSRDP_MAXIMIZED:
3991	return;
3992	}
3993
3994	/* FIXME: Perhaps use ewmh_net_moveresize_window instead */
3995	XMoveResizeWindow(g_display, sw->wnd, sw->xoffset, sw->yoffset, sw->width, sw->height);
3996	}
3997
3998
3999	void
4000	ui_seamless_restack_window(unsigned long id, unsigned long behind, unsigned long flags)
4001	{
4002	seamless_window *sw;
4003	XWindowChanges values;
4004	unsigned long restack_serial;
4005
4006	if (!g_seamless_active)
4007	return;
4008
4009	sw = sw_get_window_by_id(id);
4010	if (!sw)
4011	{
4012	warning("ui_seamless_restack_window: No information for window 0x%lx\n", id);
4013	return;
4014	}
4015
4016	if (behind)
4017	{
4018	seamless_window *sw_behind;
4019
4020	sw_behind = sw_get_window_by_id(behind);
4021	if (!sw_behind)
4022	{
4023	warning("ui_seamless_restack_window: No information for behind window 0x%lx\n", behind);
4024	return;
4025	}
4026
4027	if (!g_seamless_broken_restack)
4028	{
4029	values.stack_mode = Below;
4030	values.sibling = sw_behind->wnd;
4031	restack_serial = XNextRequest(g_display);
4032	XReconfigureWMWindow(g_display, sw->wnd, DefaultScreen(g_display),
4033	CWStackMode \| CWSibling, &values);
4034	sw_wait_configurenotify(sw->wnd, restack_serial);
4035	}
4036	}
4037	else
4038	{
4039	values.stack_mode = Above;
4040	restack_serial = XNextRequest(g_display);
4041	XReconfigureWMWindow(g_display, sw->wnd, DefaultScreen(g_display), CWStackMode,
4042	&values);
4043	sw_wait_configurenotify(sw->wnd, restack_serial);
4044	}
4045
4046	sw_restack_window(sw, behind);
4047
4048	if (flags & SEAMLESSRDP_CREATE_TOPMOST)
4049	{
4050	/* Make window always-on-top */
4051	ewmh_set_window_above(sw->wnd);
4052	}
4053	}
4054
4055
4056	void
4057	ui_seamless_settitle(unsigned long id, const char *title, unsigned long flags)
4058	{
4059	seamless_window *sw;
4060
4061	if (!g_seamless_active)
4062	return;
4063
4064	sw = sw_get_window_by_id(id);
4065	if (!sw)
4066	{
4067	warning("ui_seamless_settitle: No information for window 0x%lx\n", id);
4068	return;
4069	}
4070
4071	/* FIXME: Might want to convert the name for non-EWMH WMs */
4072	XStoreName(g_display, sw->wnd, title);
4073	ewmh_set_wm_name(sw->wnd, title);
4074	}
4075
4076
4077	void
4078	ui_seamless_setstate(unsigned long id, unsigned int state, unsigned long flags)
4079	{
4080	seamless_window *sw;
4081
4082	if (!g_seamless_active)
4083	return;
4084
4085	sw = sw_get_window_by_id(id);
4086	if (!sw)
4087	{
4088	warning("ui_seamless_setstate: No information for window 0x%lx\n", id);
4089	return;
4090	}
4091
4092	switch (state)
4093	{
4094	case SEAMLESSRDP_NORMAL:
4095	case SEAMLESSRDP_MAXIMIZED:
4096	ewmh_change_state(sw->wnd, state);
4097	XMapWindow(g_display, sw->wnd);
4098	break;
4099	case SEAMLESSRDP_MINIMIZED:
4100	/* EWMH says: "if an Application asks to toggle _NET_WM_STATE_HIDDEN
4101	the Window Manager should probably just ignore the request, since
4102	_NET_WM_STATE_HIDDEN is a function of some other aspect of the window
4103	such as minimization, rather than an independent state." Besides,
4104	XIconifyWindow is easier. */
4105	if (sw->state == SEAMLESSRDP_NOTYETMAPPED)
4106	{
4107	XWMHints *hints;
4108	hints = XGetWMHints(g_display, sw->wnd);
4109	if (hints)
4110	{
4111	hints->flags \|= StateHint;
4112	hints->initial_state = IconicState;
4113	XSetWMHints(g_display, sw->wnd, hints);
4114	XFree(hints);
4115	}
4116	XMapWindow(g_display, sw->wnd);
4117	}
4118	else
4119	XIconifyWindow(g_display, sw->wnd, DefaultScreen(g_display));
4120	break;
4121	default:
4122	warning("SeamlessRDP: Invalid state %d\n", state);
4123	break;
4124	}
4125
4126	sw->state = state;
4127	}
4128
4129
4130	void
4131	ui_seamless_syncbegin(unsigned long flags)
4132	{
4133	if (!g_seamless_active)
4134	return;
4135
4136	/* Destroy all seamless windows */
4137	while (g_seamless_windows)
4138	{
4139	XDestroyWindow(g_display, g_seamless_windows->wnd);
4140	sw_remove_window(g_seamless_windows);
4141	}
4142	}
4143
4144
4145	void
4146	ui_seamless_ack(unsigned int serial)
4147	{
4148	seamless_window *sw;
4149	for (sw = g_seamless_windows; sw; sw = sw->next)
4150	{
4151	if (sw->outstanding_position && (sw->outpos_serial == serial))
4152	{
4153	sw->xoffset = sw->outpos_xoffset;
4154	sw->yoffset = sw->outpos_yoffset;
4155	sw->width = sw->outpos_width;
4156	sw->height = sw->outpos_height;
4157	sw->outstanding_position = False;
4158
4159	/* Do a complete redraw of the window as part of the
4160	completion of the move. This is to remove any
4161	artifacts caused by our lack of synchronization. */
4162	XCopyArea(g_display, g_backstore,
4163	sw->wnd, g_gc,
4164	sw->xoffset, sw->yoffset, sw->width, sw->height, 0, 0);
4165
4166	break;
4167	}
4168	}
4169	}

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source: vbox/trunk/src/VBox/RDP/client/xwin.c@ 33944

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