renderspu_glx.c@ 26753

Last change on this file since 26753 was 21476, checked in by vboxsync, 15 years ago
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1	/* Copyright (c) 2001, Stanford University
2	* All rights reserved
3	*
4	* See the file LICENSE.txt for information on redistributing this software.
5	*/
6	#if 00 /TEMPORARY/
7	#include <unistd.h>
8	#include "cr_rand.h"
9	#endif
10
11	#include <GL/glx.h>
12	#include <X11/Xlib.h>
13	#include <X11/Xutil.h>
14	#include <X11/Xmu/StdCmap.h>
15	#include <X11/Xatom.h>
16	#include <X11/extensions/shape.h>
17	#include <sys/time.h>
18	#include <stdio.h>
19
20	#include "cr_environment.h"
21	#include "cr_error.h"
22	#include "cr_string.h"
23	#include "cr_mem.h"
24	#include "cr_process.h"
25	#include "renderspu.h"
26
27
28	/*
29	* Stuff from MwmUtils.h
30	*/
31	typedef struct
32	{
33	unsigned long flags;
34	unsigned long functions;
35	unsigned long decorations;
36	long inputMode;
37	unsigned long status;
38	} PropMotifWmHints;
39
40	#define PROP_MOTIF_WM_HINTS_ELEMENTS 5
41	#define MWM_HINTS_DECORATIONS (1L << 1)
42
43
44	#define WINDOW_NAME window->title
45
46	static Bool WindowExistsFlag;
47
48	static int
49	WindowExistsErrorHandler( Display dpy, XErrorEvent xerr )
50	{
51	if (xerr->error_code == BadWindow)
52	{
53	WindowExistsFlag = GL_FALSE;
54	}
55	return 0;
56	}
57
58	static GLboolean
59	WindowExists( Display *dpy, Window w )
60	{
61	XWindowAttributes xwa;
62	int (oldXErrorHandler)(Display , XErrorEvent *);
63
64	WindowExistsFlag = GL_TRUE;
65	oldXErrorHandler = XSetErrorHandler(WindowExistsErrorHandler);
66	XGetWindowAttributes(dpy, w, &xwa); /* dummy request */
67	XSetErrorHandler(oldXErrorHandler);
68	return WindowExistsFlag;
69	}
70
71	static GLboolean
72	renderDestroyWindow( Display *dpy, Window w )
73	{
74	XWindowAttributes xwa;
75	int (oldXErrorHandler)(Display , XErrorEvent *);
76
77	WindowExistsFlag = GL_TRUE;
78	oldXErrorHandler = XSetErrorHandler(WindowExistsErrorHandler);
79	XGetWindowAttributes(dpy, w, &xwa); /* dummy request */
80	if (xwa.map_state == IsViewable) {
81	XDestroyWindow (dpy, w); /* dummy request */
82	XSync (dpy,0);
83	}
84	XSetErrorHandler(oldXErrorHandler);
85	return WindowExistsFlag;
86	}
87
88	/*
89	* Garbage collection function.
90	* Loop over all known windows and check if corresponding X window still
91	* exists. If it doesn't, destroy the render SPU window.
92	* XXX seems to blow up with threadtest.conf tests.
93	*/
94	void
95	renderspu_GCWindow(void)
96	{
97	int i;
98	WindowInfo *window;
99
100	for (i = 0; i < (int)render_spu.window_id - 1; i++) {
101	window = (WindowInfo *) crHashtableSearch(render_spu.windowTable, i);
102	if (window->visual->dpy) {
103	if (!WindowExists (window->visual->dpy, window->appWindow) ) {
104	XSync(window->visual->dpy,0);
105	if(WindowExists(window->visual->dpy, window->window)) {
106	renderDestroyWindow(window->visual->dpy, window->window);
107	}
108	}
109	}
110	}
111	}
112
113	static Colormap
114	GetLUTColormap( Display dpy, XVisualInfo vi )
115	{
116	int a;
117	XColor col;
118	Colormap cmap;
119
120	#if defined(__cplusplus) \|\| defined(c_plusplus)
121	int localclass = vi->c_class; /* C++ */
122	#else
123	int localclass = vi->class; /* C */
124	#endif
125
126	if ( localclass != DirectColor )
127	{
128	crError( "No support for non-DirectColor visuals with LUTs" );
129	}
130
131	cmap = XCreateColormap( dpy, RootWindow(dpy, vi->screen),
132	vi->visual, AllocAll );
133
134	for (a=0; a<256; a++)
135	{
136	col.red = render_spu.lut8[0][a]<<8;
137	col.green = col.blue = 0;
138	col.pixel = a<<16;
139	col.flags = DoRed;
140	XStoreColor(dpy, cmap, &col);
141	}
142
143	for (a=0; a<256; a++)
144	{
145	col.green = render_spu.lut8[1][a]<<8;
146	col.red = col.blue = 0;
147	col.pixel = a<<8;
148	col.flags = DoGreen;
149	XStoreColor(dpy, cmap, &col);
150	}
151
152	for (a=0; a<256; a++)
153	{
154	col.blue = render_spu.lut8[2][a]<<8;
155	col.red = col.green= 0;
156	col.pixel = a;
157	col.flags = DoBlue;
158	XStoreColor(dpy, cmap, &col);
159	}
160
161	return cmap;
162	}
163
164	static Colormap
165	GetShareableColormap( Display dpy, XVisualInfo vi )
166	{
167	Status status;
168	XStandardColormap *standardCmaps;
169	Colormap cmap;
170	int i, numCmaps;
171
172	#if defined(__cplusplus) \|\| defined(c_plusplus)
173	int localclass = vi->c_class; /* C++ */
174	#else
175	int localclass = vi->class; /* C */
176	#endif
177
178	if ( localclass != TrueColor )
179	{
180	crError( "No support for non-TrueColor visuals." );
181	}
182
183	status = XmuLookupStandardColormap( dpy, vi->screen, vi->visualid,
184	vi->depth, XA_RGB_DEFAULT_MAP,
185	False, True );
186
187	if ( status == 1 )
188	{
189	status = XGetRGBColormaps( dpy, RootWindow( dpy, vi->screen),
190	&standardCmaps, &numCmaps,
191	XA_RGB_DEFAULT_MAP );
192	if ( status == 1 )
193	{
194	for (i = 0 ; i < numCmaps ; i++)
195	{
196	if (standardCmaps[i].visualid == vi->visualid)
197	{
198	cmap = standardCmaps[i].colormap;
199	XFree( standardCmaps);
200	return cmap;
201	}
202	}
203	}
204	}
205
206	cmap = XCreateColormap( dpy, RootWindow(dpy, vi->screen),
207	vi->visual, AllocNone );
208	return cmap;
209	}
210
211
212	static int
213	WaitForMapNotify( Display display, XEvent event, char *arg )
214	{
215	(void)display;
216	return ( event->type == MapNotify && event->xmap.window == (Window)arg );
217	}
218
219
220	/**
221	* Return the X Visual ID of the given window
222	*/
223	static int
224	GetWindowVisualID( Display *dpy, Window w )
225	{
226	XWindowAttributes attr;
227	int k = XGetWindowAttributes(dpy, w, &attr);
228	if (!k)
229	return -1;
230	return attr.visual->visualid;
231	}
232
233
234	/**
235	* Wrapper for glXGetConfig().
236	*/
237	static int
238	Attrib( const VisualInfo *visual, int attrib )
239	{
240	int value = 0;
241	render_spu.ws.glXGetConfig( visual->dpy, visual->visual, attrib, &value );
242	return value;
243	}
244
245
246
247	/**
248	* Find a visual with the specified attributes. If we fail, turn off an
249	* attribute (like multisample or stereo) and try again.
250	*/
251	static XVisualInfo *
252	chooseVisualRetry( Display *dpy, int screen, GLbitfield visAttribs )
253	{
254	while (1) {
255	XVisualInfo *vis = crChooseVisual(&render_spu.ws, dpy, screen,
256	(GLboolean) render_spu.use_lut8,
257	visAttribs);
258	if (vis)
259	return vis;
260
261	if (visAttribs & CR_MULTISAMPLE_BIT)
262	visAttribs &= ~CR_MULTISAMPLE_BIT;
263	else if (visAttribs & CR_OVERLAY_BIT)
264	visAttribs &= ~CR_OVERLAY_BIT;
265	else if (visAttribs & CR_STEREO_BIT)
266	visAttribs &= ~CR_STEREO_BIT;
267	else if (visAttribs & CR_ACCUM_BIT)
268	visAttribs &= ~CR_ACCUM_BIT;
269	else if (visAttribs & CR_ALPHA_BIT)
270	visAttribs &= ~CR_ALPHA_BIT;
271	else
272	return NULL;
273	}
274	}
275
276
277	/**
278	* Get an FBconfig for the specified attributes
279	*/
280	#ifdef GLX_VERSION_1_3
281	static GLXFBConfig
282	chooseFBConfig( Display *dpy, int screen, GLbitfield visAttribs )
283	{
284	GLXFBConfig *fbconfig;
285	int attribs[1000], attrCount = 0, numConfigs;
286	int major, minor;
287
288	CRASSERT(visAttribs & CR_PBUFFER_BIT);
289
290	/* Make sure pbuffers are supported */
291	render_spu.ws.glXQueryVersion(dpy, &major, &minor);
292	if (major * 100 + minor < 103) {
293	crWarning("Render SPU: GLX %d.%d doesn't support pbuffers", major, minor);
294	return 0;
295	}
296
297	attribs[attrCount++] = GLX_DRAWABLE_TYPE;
298	attribs[attrCount++] = GLX_PBUFFER_BIT;
299
300	if (visAttribs & CR_RGB_BIT) {
301	attribs[attrCount++] = GLX_RENDER_TYPE;
302	attribs[attrCount++] = GLX_RGBA_BIT;
303	attribs[attrCount++] = GLX_RED_SIZE;
304	attribs[attrCount++] = 1;
305	attribs[attrCount++] = GLX_GREEN_SIZE;
306	attribs[attrCount++] = 1;
307	attribs[attrCount++] = GLX_BLUE_SIZE;
308	attribs[attrCount++] = 1;
309	if (visAttribs & CR_ALPHA_BIT) {
310	attribs[attrCount++] = GLX_ALPHA_SIZE;
311	attribs[attrCount++] = 1;
312	}
313	}
314
315	if (visAttribs & CR_DEPTH_BIT) {
316	attribs[attrCount++] = GLX_DEPTH_SIZE;
317	attribs[attrCount++] = 1;
318	}
319
320	if (visAttribs & CR_DOUBLE_BIT) {
321	attribs[attrCount++] = GLX_DOUBLEBUFFER;
322	attribs[attrCount++] = True;
323	}
324	else {
325	/* don't care */
326	}
327
328	if (visAttribs & CR_STENCIL_BIT) {
329	attribs[attrCount++] = GLX_STENCIL_SIZE;
330	attribs[attrCount++] = 1;
331	}
332
333	if (visAttribs & CR_ACCUM_BIT) {
334	attribs[attrCount++] = GLX_ACCUM_RED_SIZE;
335	attribs[attrCount++] = 1;
336	attribs[attrCount++] = GLX_ACCUM_GREEN_SIZE;
337	attribs[attrCount++] = 1;
338	attribs[attrCount++] = GLX_ACCUM_BLUE_SIZE;
339	attribs[attrCount++] = 1;
340	if (visAttribs & CR_ALPHA_BIT) {
341	attribs[attrCount++] = GLX_ACCUM_ALPHA_SIZE;
342	attribs[attrCount++] = 1;
343	}
344	}
345
346	if (visAttribs & CR_MULTISAMPLE_BIT) {
347	attribs[attrCount++] = GLX_SAMPLE_BUFFERS_SGIS;
348	attribs[attrCount++] = 1;
349	attribs[attrCount++] = GLX_SAMPLES_SGIS;
350	attribs[attrCount++] = 4;
351	}
352
353	if (visAttribs & CR_STEREO_BIT) {
354	attribs[attrCount++] = GLX_STEREO;
355	attribs[attrCount++] = 1;
356	}
357
358	/* terminate */
359	attribs[attrCount++] = 0;
360
361	fbconfig = render_spu.ws.glXChooseFBConfig(dpy, screen, attribs, &numConfigs);
362	if (!fbconfig \|\| numConfigs == 0) {
363	/* no matches! */
364	return 0;
365	}
366	if (numConfigs == 1) {
367	/* one match */
368	return fbconfig[0];
369	}
370	else {
371	/* found several matches - try to find best one */
372	int i;
373
374	crDebug("Render SPU: glXChooseFBConfig found %d matches for visBits 0x%x",
375	numConfigs, visAttribs);
376	/* Skip/omit configs that have unneeded Z buffer or unneeded double
377	* buffering. Possible add other tests in the future.
378	*/
379	for (i = 0; i < numConfigs; i++) {
380	int zBits, db;
381	render_spu.ws.glXGetFBConfigAttrib(dpy, fbconfig[i],
382	GLX_DEPTH_SIZE, &zBits);
383	if ((visAttribs & CR_DEPTH_BIT) == 0 && zBits > 0) {
384	/* omit fbconfig with unneeded Z */
385	continue;
386	}
387	render_spu.ws.glXGetFBConfigAttrib(dpy, fbconfig[i],
388	GLX_DOUBLEBUFFER, &db);
389	if ((visAttribs & CR_DOUBLE_BIT) == 0 && db) {
390	/* omit fbconfig with uneeded DB */
391	continue;
392	}
393
394	/* if we get here, use this config */
395	return fbconfig[i];
396	}
397
398	/* if we get here, we didn't find a better fbconfig */
399	return fbconfig[0];
400	}
401	}
402	#endif /* GLX_VERSION_1_3 */
403
404
405	GLboolean
406	renderspu_SystemInitVisual( VisualInfo *visual )
407	{
408	const char *dpyName;
409	int screen;
410
411	CRASSERT(visual);
412
413	#ifdef USE_OSMESA
414	if (render_spu.use_osmesa) {
415	/* A dummy visual - being non null is enough. */
416	visual->visual =(XVisualInfo *) "os";
417	return GL_TRUE;
418	}
419	#endif
420
421	if (render_spu.display_string[0])
422	dpyName = render_spu.display_string;
423	else if (visual->displayName[0])
424	dpyName = visual->displayName;
425	else
426	dpyName = NULL;
427
428	if (!dpyName)
429	{
430	crWarning("Render SPU: no display, aborting");
431	return GL_FALSE;
432	}
433
434	crDebug("Render SPU: Opening display %s", dpyName);
435
436	if (dpyName &&
437	(crStrncmp(dpyName, "localhost:11", 12) == 0 \|\|
438	crStrncmp(dpyName, "localhost:12", 12) == 0 \|\|
439	crStrncmp(dpyName, "localhost:13", 12) == 0)) {
440	/* Issue both debug and warning messages to make sure the
441	* message gets noticed!
442	*/
443	crDebug("Render SPU: display string looks like a proxy X server!");
444	crDebug("Render SPU: This is usually a problem!");
445	crWarning("Render SPU: display string looks like a proxy X server!");
446	crWarning("Render SPU: This is usually a problem!");
447	}
448
449	visual->dpy = XOpenDisplay(dpyName);
450	if (!visual->dpy)
451	{
452	crWarning( "Couldn't open X display named '%s'", dpyName );
453	return GL_FALSE;
454	}
455
456	if ( !render_spu.ws.glXQueryExtension( visual->dpy, NULL, NULL ) )
457	{
458	crWarning( "Render SPU: Display %s doesn't support GLX", visual->displayName );
459	return GL_FALSE;
460	}
461
462	screen = DefaultScreen(visual->dpy);
463
464	#ifdef GLX_VERSION_1_3
465	if (visual->visAttribs & CR_PBUFFER_BIT)
466	{
467	visual->fbconfig = chooseFBConfig(visual->dpy, screen, visual->visAttribs);
468	if (!visual->fbconfig) {
469	char s[1000];
470	renderspuMakeVisString( visual->visAttribs, s );
471	crWarning( "Render SPU: Display %s doesn't have the necessary fbconfig: %s",
472	dpyName, s );
473	XCloseDisplay(visual->dpy);
474	return GL_FALSE;
475	}
476	}
477	else
478	#endif /* GLX_VERSION_1_3 */
479	{
480	visual->visual = chooseVisualRetry(visual->dpy, screen, visual->visAttribs);
481	if (!visual->visual) {
482	char s[1000];
483	renderspuMakeVisString( visual->visAttribs, s );
484	crWarning("Render SPU: Display %s doesn't have the necessary visual: %s",
485	dpyName, s );
486	XCloseDisplay(visual->dpy);
487	return GL_FALSE;
488	}
489	}
490
491	if ( render_spu.sync )
492	{
493	crDebug( "Render SPU: Turning on XSynchronize" );
494	XSynchronize( visual->dpy, True );
495	}
496
497	if (visual->visual) {
498	crDebug( "Render SPU: Choose visual id=0x%x: RGBA=(%d,%d,%d,%d) Z=%d"
499	" stencil=%d double=%d stereo=%d accum=(%d,%d,%d,%d)",
500	(int) visual->visual->visualid,
501	Attrib( visual, GLX_RED_SIZE ),
502	Attrib( visual, GLX_GREEN_SIZE ),
503	Attrib( visual, GLX_BLUE_SIZE ),
504	Attrib( visual, GLX_ALPHA_SIZE ),
505	Attrib( visual, GLX_DEPTH_SIZE ),
506	Attrib( visual, GLX_STENCIL_SIZE ),
507	Attrib( visual, GLX_DOUBLEBUFFER ),
508	Attrib( visual, GLX_STEREO ),
509	Attrib( visual, GLX_ACCUM_RED_SIZE ),
510	Attrib( visual, GLX_ACCUM_GREEN_SIZE ),
511	Attrib( visual, GLX_ACCUM_BLUE_SIZE ),
512	Attrib( visual, GLX_ACCUM_ALPHA_SIZE )
513	);
514	}
515	else if (visual->fbconfig) {
516	int id;
517	render_spu.ws.glXGetFBConfigAttrib(visual->dpy, visual->fbconfig,
518	GLX_FBCONFIG_ID, &id);
519	crDebug("Render SPU: Chose FBConfig 0x%x, visBits=0x%x",
520	id, visual->visAttribs);
521	}
522
523	return GL_TRUE;
524	}
525
526
527	/*
528	* Add a GLX window to a swap group for inter-machine SwapBuffer
529	* synchronization.
530	* Only supported on NVIDIA Quadro 3000G hardware.
531	*/
532	static void
533	JoinSwapGroup(Display *dpy, int screen, Window window,
534	GLuint group, GLuint barrier)
535	{
536	GLuint maxGroups, maxBarriers;
537	const char *ext;
538	Bool b;
539
540	/*
541	* XXX maybe query glXGetClientString() instead???
542	*/
543	ext = render_spu.ws.glXQueryExtensionsString(dpy, screen);
544
545	if (!crStrstr(ext, "GLX_NV_swap_group") \|\|
546	!render_spu.ws.glXQueryMaxSwapGroupsNV \|\|
547	!render_spu.ws.glXJoinSwapGroupNV \|\|
548	!render_spu.ws.glXBindSwapBarrierNV) {
549	crWarning("Render SPU: nv_swap_group is set but GLX_NV_swap_group is not supported on this system!");
550	return;
551	}
552
553	b = render_spu.ws.glXQueryMaxSwapGroupsNV(dpy, screen,
554	&maxGroups, &maxBarriers);
555	if (!b)
556	crWarning("Render SPU: call to glXQueryMaxSwapGroupsNV() failed!");
557
558	if (group >= maxGroups) {
559	crWarning("Render SPU: nv_swap_group too large (%d > %d)",
560	group, (int) maxGroups);
561	return;
562	}
563	crDebug("Render SPU: max swap groups = %d, max barriers = %d",
564	maxGroups, maxBarriers);
565
566	/* add this window to the swap group */
567	b = render_spu.ws.glXJoinSwapGroupNV(dpy, window, group);
568	if (!b) {
569	crWarning("Render SPU: call to glXJoinSwapGroupNV() failed!");
570	return;
571	}
572	else {
573	crDebug("Render SPU: call to glXJoinSwapGroupNV() worked!");
574	}
575
576	/* ... and bind window to barrier of same ID */
577	b = render_spu.ws.glXBindSwapBarrierNV(dpy, group, barrier);
578	if (!b) {
579	crWarning("Render SPU: call to glXBindSwapBarrierNV(group=%d barrier=%d) failed!", group, barrier);
580	return;
581	}
582	else {
583	crDebug("Render SPU: call to glXBindSwapBarrierNV(group=%d barrier=%d) worked!", group, barrier);
584	}
585
586	crDebug("Render SPU: window has joined swap group %d", group);
587	}
588
589
590
591	static GLboolean
592	createWindow( VisualInfo visual, GLboolean showIt, WindowInfo window )
593	{
594	Display *dpy;
595	Colormap cmap;
596	XSetWindowAttributes swa;
597	XSizeHints hints = {0};
598	XEvent event;
599	XTextProperty text_prop;
600	XClassHint *class_hints = NULL;
601	Window parent;
602	char *name;
603	unsigned long flags;
604	unsigned int vncWin;
605
606	CRASSERT(visual);
607	window->visual = visual;
608	window->nativeWindow = 0;
609
610	#ifdef USE_OSMESA
611	if (render_spu.use_osmesa)
612	return GL_TRUE;
613	#endif
614
615	dpy = visual->dpy;
616
617	if ( render_spu.use_L2 )
618	{
619	crWarning( "Render SPU: Going fullscreen because we think we're using Lightning-2." );
620	render_spu.fullscreen = 1;
621	}
622
623	/*
624	* Query screen size if we're going full-screen
625	*/
626	if ( render_spu.fullscreen )
627	{
628	XWindowAttributes xwa;
629	Window root_window;
630
631	/* disable the screensaver */
632	XSetScreenSaver( dpy, 0, 0, PreferBlanking, AllowExposures );
633	crDebug( "Render SPU: Just turned off the screensaver" );
634
635	/* Figure out how big the screen is, and make the window that size */
636	root_window = DefaultRootWindow( dpy );
637	XGetWindowAttributes( dpy, root_window, &xwa );
638
639	crDebug( "Render SPU: root window size: %d x %d", xwa.width, xwa.height );
640
641	window->x = 0;
642	window->y = 0;
643	window->width = xwa.width;
644	window->height = xwa.height;
645	}
646
647	/* i've changed default window size to be 0,0 but X doesn't like it */
648	/*CRASSERT(window->width >= 1);
649	CRASSERT(window->height >= 1);*/
650	if (window->width < 1) window->width = 1;
651	if (window->height < 1) window->height = 1;
652
653	/*
654	* Get a colormap.
655	*/
656	if (render_spu.use_lut8)
657	cmap = GetLUTColormap( dpy, visual->visual );
658	else
659	cmap = GetShareableColormap( dpy, visual->visual );
660	if ( !cmap ) {
661	crError( "Render SPU: Unable to get a colormap!" );
662	return GL_FALSE;
663	}
664
665	/* destroy existing window if there is one */
666	if (window->window) {
667	XDestroyWindow(dpy, window->window);
668	}
669
670	/*
671	* Create the window
672	*
673	* POSSIBLE OPTIMIZATION:
674	* If we're using the render_to_app_window or render_to_crut_window option
675	* (or DMX) we may never actually use this X window. So we could perhaps
676	* delay its creation until glXMakeCurrent is called. With NVIDIA's OpenGL
677	* driver, creating a lot of GLX windows can eat up a lot of VRAM and lead
678	* to slow, software-fallback rendering. Apps that use render_to_app_window,
679	* etc should set the default window size very small to avoid this.
680	* See dmx.conf for example.
681	*/
682	swa.colormap = cmap;
683	swa.border_pixel = 0;
684	swa.event_mask = ExposureMask \| StructureNotifyMask;
685	swa.override_redirect = 1;
686
687	flags = CWBorderPixel \| CWColormap \| CWEventMask \| CWOverrideRedirect;
688
689	/*
690	* We pass the VNC's desktop windowID via an environment variable.
691	* If we don't find one, we're not on a 3D-capable vncviewer, or
692	* if we do find one, then create the renderspu subwindow as a
693	* child of the vncviewer's desktop window.
694	*
695	* This is purely for the replicateSPU.
696	*
697	* NOTE: This is crufty, and will do for now. FIXME.
698	*/
699	vncWin = crStrToInt( crGetenv("CRVNCWINDOW") );
700	if (vncWin)
701	parent = (Window) vncWin;
702	else
703	parent = RootWindow(dpy, visual->visual->screen);
704
705	if (render_spu_parent_window_id>0)
706	{
707	crDebug("Render SPU: VBox parent window_id is: %x", render_spu_parent_window_id);
708	window->window = XCreateWindow(dpy, render_spu_parent_window_id,
709	window->x, window->y,
710	window->width, window->height,
711	0, visual->visual->depth, InputOutput,
712	visual->visual->visual, flags, &swa);
713	}
714	else
715	{
716	/* This should happen only at the call from crVBoxServerInit. At this point we don't
717	* know render_spu_parent_window_id yet, nor we need it for default window which is hidden.
718	*/
719
720	crDebug("Render SPU: Creating global window, parent: %x", RootWindow(dpy, visual->visual->screen));
721	window->window = XCreateWindow(dpy, RootWindow(dpy, visual->visual->screen),
722	window->x, window->y,
723	window->width, window->height,
724	0, visual->visual->depth, InputOutput,
725	visual->visual->visual, flags, &swa);
726	}
727
728	if (!window->window) {
729	crWarning( "Render SPU: unable to create window" );
730	return GL_FALSE;
731	}
732
733	crDebug( "Render SPU: Created window 0x%x on display %s, Xvisual 0x%x",
734	(int) window->window,
735	DisplayString(visual->dpy),
736	(int) visual->visual->visual->visualid /* yikes */
737	);
738
739	if (render_spu.fullscreen \|\| render_spu.borderless)
740	{
741	/* Disable border/decorations with an MWM property (observed by most
742	* modern window managers.
743	*/
744	PropMotifWmHints motif_hints;
745	Atom prop, proptype;
746
747	/* setup the property */
748	motif_hints.flags = MWM_HINTS_DECORATIONS;
749	motif_hints.decorations = 0; /* Turn off all decorations */
750
751	/* get the atom for the property */
752	prop = XInternAtom( dpy, "_MOTIF_WM_HINTS", True );
753	if (prop) {
754	/* not sure this is correct, seems to work, XA_WM_HINTS didn't work */
755	proptype = prop;
756	XChangeProperty( dpy, window->window, /* display, window */
757	prop, proptype, /* property, type */
758	32, /* format: 32-bit datums */
759	PropModeReplace, /* mode */
760	(unsigned char ) &motif_hints, / data */
761	PROP_MOTIF_WM_HINTS_ELEMENTS /* nelements */
762	);
763	}
764	}
765
766	/* Make a clear cursor to get rid of the monitor cursor */
767	if ( render_spu.fullscreen )
768	{
769	Pixmap pixmap;
770	Cursor cursor;
771	XColor colour;
772	char clearByte = 0;
773
774	/* AdB - Only bother to create a 1x1 cursor (byte) */
775	pixmap = XCreatePixmapFromBitmapData(dpy, window->window, &clearByte,
776	1, 1, 1, 0, 1);
777	if(!pixmap){
778	crWarning("Unable to create clear cursor pixmap");
779	return GL_FALSE;
780	}
781
782	cursor = XCreatePixmapCursor(dpy, pixmap, pixmap, &colour, &colour, 0, 0);
783	if(!cursor){
784	crWarning("Unable to create clear cursor from zero byte pixmap");
785	return GL_FALSE;
786	}
787	XDefineCursor(dpy, window->window, cursor);
788	XFreePixmap(dpy, pixmap);
789	}
790
791	hints.x = window->x;
792	hints.y = window->y;
793	hints.width = window->width;
794	hints.height = window->height;
795	hints.min_width = hints.width;
796	hints.min_height = hints.height;
797	hints.max_width = hints.width;
798	hints.max_height = hints.height;
799	if (render_spu.resizable)
800	hints.flags = USPosition \| USSize;
801	else
802	hints.flags = USPosition \| USSize \| PMinSize \| PMaxSize;
803	XSetStandardProperties( dpy, window->window,
804	WINDOW_NAME, WINDOW_NAME,
805	None, NULL, 0, &hints );
806
807	/* New item! This is needed so that the sgimouse server can find
808	* the crDebug window.
809	*/
810	name = WINDOW_NAME;
811	XStringListToTextProperty( &name, 1, &text_prop );
812	XSetWMName( dpy, window->window, &text_prop );
813
814	/* Set window name, resource class */
815	class_hints = XAllocClassHint( );
816	class_hints->res_name = crStrdup( "foo" );
817	class_hints->res_class = crStrdup( "Chromium" );
818	XSetClassHint( dpy, window->window, class_hints );
819	crFree( class_hints->res_name );
820	crFree( class_hints->res_class );
821	XFree( class_hints );
822
823	if (showIt) {
824	XMapWindow( dpy, window->window );
825	XIfEvent( dpy, &event, WaitForMapNotify,
826	(char *) window->window );
827	}
828	window->visible = showIt;
829
830	if ((window->visual->visAttribs & CR_DOUBLE_BIT) && render_spu.nvSwapGroup) {
831	/* NOTE:
832	* If this SPU creates N windows we don't want to gang the N windows
833	* together!
834	* By adding the window ID to the nvSwapGroup ID we can be sure each
835	* app window is in a separate swap group while all the back-end windows
836	* which form a mural are in the same swap group.
837	*/
838	GLuint group = 0; /render_spu.nvSwapGroup + window->id;/
839	GLuint barrier = 0;
840	JoinSwapGroup(dpy, visual->visual->screen, window->window, group, barrier);
841	}
842
843	/*
844	* End GLX code
845	*/
846	crDebug( "Render SPU: actual window x, y, width, height: %d, %d, %d, %d",
847	window->x, window->y, window->width, window->height );
848
849	XSync(dpy, 0);
850
851	return GL_TRUE;
852	}
853
854
855	static GLboolean
856	createPBuffer( VisualInfo visual, WindowInfo window )
857	{
858	window->visual = visual;
859	window->x = 0;
860	window->y = 0;
861	window->nativeWindow = 0;
862
863	CRASSERT(window->width > 0);
864	CRASSERT(window->height > 0);
865
866	#ifdef GLX_VERSION_1_3
867	{
868	int attribs[100], i = 0, w, h;
869	CRASSERT(visual->fbconfig);
870	w = window->width;
871	h = window->height;
872	attribs[i++] = GLX_PRESERVED_CONTENTS;
873	attribs[i++] = True;
874	attribs[i++] = GLX_PBUFFER_WIDTH;
875	attribs[i++] = w;
876	attribs[i++] = GLX_PBUFFER_HEIGHT;
877	attribs[i++] = h;
878	attribs[i++] = 0; /* terminator */
879	window->window = render_spu.ws.glXCreatePbuffer(visual->dpy,
880	visual->fbconfig, attribs);
881	if (window->window) {
882	crDebug("Render SPU: Allocated %d x %d pbuffer", w, h);
883	return GL_TRUE;
884	}
885	else {
886	crWarning("Render SPU: Failed to allocate %d x %d pbuffer", w, h);
887	return GL_FALSE;
888	}
889	}
890	#endif /* GLX_VERSION_1_3 */
891	return GL_FALSE;
892	}
893
894
895	GLboolean
896	renderspu_SystemCreateWindow( VisualInfo visual, GLboolean showIt, WindowInfo window )
897	{
898	if (visual->visAttribs & CR_PBUFFER_BIT) {
899	window->width = render_spu.defaultWidth;
900	window->height = render_spu.defaultHeight;
901	return createPBuffer(visual, window);
902	}
903	else {
904	return createWindow(visual, showIt, window);
905	}
906	}
907
908	GLboolean
909	renderspu_SystemVBoxCreateWindow( VisualInfo visual, GLboolean showIt, WindowInfo window )
910	{
911	return renderspu_SystemCreateWindow(visual, showIt, window);
912	}
913
914	void
915	renderspu_SystemDestroyWindow( WindowInfo *window )
916	{
917	CRASSERT(window);
918	CRASSERT(window->visual);
919
920	#ifdef USE_OSMESA
921	if (render_spu.use_osmesa)
922	{
923	crFree(window->buffer);
924	window->buffer = NULL;
925	}
926	else
927	#endif
928	{
929	if (window->visual->visAttribs & CR_PBUFFER_BIT) {
930	#ifdef GLX_VERSION_1_3
931	render_spu.ws.glXDestroyPbuffer(window->visual->dpy, window->window);
932	#endif
933	}
934	else {
935	/* The value window->nativeWindow will only be non-NULL if the
936	* render_to_app_window option is set to true. In this case, we
937	* don't want to do anything, since we're not responsible for this
938	* window. I know...personal responsibility and all...
939	*/
940	if (!window->nativeWindow) {
941	XDestroyWindow(window->visual->dpy, window->window);
942	XSync(window->visual->dpy, 0);
943	}
944	}
945	}
946	window->visual = NULL;
947	window->window = 0;
948	}
949
950
951	GLboolean
952	renderspu_SystemCreateContext( VisualInfo visual, ContextInfo context, ContextInfo *sharedContext )
953	{
954	Bool is_direct;
955	GLXContext sharedSystemContext = NULL;
956
957	CRASSERT(visual);
958	CRASSERT(context);
959
960	context->visual = visual;
961
962	if (sharedContext != NULL) {
963	sharedSystemContext = sharedContext->context;
964	}
965
966
967
968	#ifdef USE_OSMESA
969	if (render_spu.use_osmesa) {
970	context->context = (GLXContext) render_spu.OSMesaCreateContext(OSMESA_RGB, 0);
971	if (context->context)
972	return GL_TRUE;
973	else
974	return GL_FALSE;
975	}
976	#endif
977
978	#ifdef GLX_VERSION_1_3
979	if (visual->visAttribs & CR_PBUFFER_BIT) {
980	context->context = render_spu.ws.glXCreateNewContext( visual->dpy,
981	visual->fbconfig,
982	GLX_RGBA_TYPE,
983	sharedSystemContext,
984	render_spu.try_direct);
985	}
986	else
987	#endif
988	{
989	context->context = render_spu.ws.glXCreateContext( visual->dpy,
990	visual->visual,
991	sharedSystemContext,
992	render_spu.try_direct);
993	}
994	if (!context->context) {
995	crError( "Render SPU: Couldn't create rendering context" );
996	return GL_FALSE;
997	}
998
999	is_direct = render_spu.ws.glXIsDirect( visual->dpy, context->context );
1000	if (visual->visual)
1001	crDebug("Render SPU: Created %s context (%d) on display %s for visAttribs 0x%x",
1002	is_direct ? "DIRECT" : "INDIRECT",
1003	context->id,
1004	DisplayString(visual->dpy),
1005	visual->visAttribs);
1006
1007	if ( render_spu.force_direct && !is_direct )
1008	{
1009	crError( "Render SPU: Direct rendering not possible." );
1010	return GL_FALSE;
1011	}
1012
1013	return GL_TRUE;
1014	}
1015
1016
1017	#define USE_GLX_COPYCONTEXT 0
1018
1019	#if !USE_GLX_COPYCONTEXT
1020
1021	/**
1022	* Unfortunately, glXCopyContext() is broken sometimes (NVIDIA 76.76 driver).
1023	* This bit of code gets and sets GL state we need to copy between contexts.
1024	*/
1025	struct saved_state
1026	{
1027	/* XXX depending on the app, more state may be needed here */
1028	GLboolean Lighting;
1029	GLboolean LightEnabled[8];
1030	GLfloat LightPos[8][4];
1031	GLfloat LightAmbient[8][4];
1032	GLfloat LightDiffuse[8][4];
1033	GLfloat LightSpecular[8][4];
1034	GLboolean DepthTest;
1035	};
1036
1037	static struct saved_state SavedState;
1038
1039	static void
1040	get_state(struct saved_state *s)
1041	{
1042	int i;
1043
1044	s->Lighting = render_spu.self.IsEnabled(GL_LIGHTING);
1045	for (i = 0; i < 8; i++) {
1046	s->LightEnabled[i] = render_spu.self.IsEnabled(GL_LIGHT0 + i);
1047	render_spu.self.GetLightfv(GL_LIGHT0 + i, GL_POSITION, s->LightPos[i]);
1048	render_spu.self.GetLightfv(GL_LIGHT0 + i, GL_AMBIENT, s->LightAmbient[i]);
1049	render_spu.self.GetLightfv(GL_LIGHT0 + i, GL_DIFFUSE, s->LightDiffuse[i]);
1050	render_spu.self.GetLightfv(GL_LIGHT0 + i, GL_SPECULAR, s->LightSpecular[i]);
1051	}
1052
1053	s->DepthTest = render_spu.self.IsEnabled(GL_DEPTH_TEST);
1054	}
1055
1056	static void
1057	set_state(const struct saved_state *s)
1058	{
1059	int i;
1060
1061	if (s->Lighting) {
1062	render_spu.self.Enable(GL_LIGHTING);
1063	}
1064	else {
1065	render_spu.self.Disable(GL_LIGHTING);
1066	}
1067
1068	for (i = 0; i < 8; i++) {
1069	if (s->LightEnabled[i]) {
1070	render_spu.self.Enable(GL_LIGHT0 + i);
1071	}
1072	else {
1073	render_spu.self.Disable(GL_LIGHT0 + i);
1074	}
1075	render_spu.self.Lightfv(GL_LIGHT0 + i, GL_POSITION, s->LightPos[i]);
1076	render_spu.self.Lightfv(GL_LIGHT0 + i, GL_AMBIENT, s->LightAmbient[i]);
1077	render_spu.self.Lightfv(GL_LIGHT0 + i, GL_DIFFUSE, s->LightDiffuse[i]);
1078	render_spu.self.Lightfv(GL_LIGHT0 + i, GL_SPECULAR, s->LightSpecular[i]);
1079	}
1080
1081	if (s->DepthTest)
1082	render_spu.self.Enable(GL_DEPTH_TEST);
1083	else
1084	render_spu.self.Disable(GL_DEPTH_TEST);
1085	}
1086
1087	#endif /* !USE_GLX_COPYCONTEXT */
1088
1089	/**
1090	* Recreate the GLX context for ContextInfo. The new context will use the
1091	* visual specified by newVisualID.
1092	*/
1093	static void
1094	renderspu_RecreateContext( ContextInfo *context, int newVisualID )
1095	{
1096	XVisualInfo templateVis, *vis;
1097	long templateFlags;
1098	int screen = 0, count;
1099	GLXContext oldContext = context->context;
1100
1101	templateFlags = VisualScreenMask \| VisualIDMask;
1102	templateVis.screen = screen;
1103	templateVis.visualid = newVisualID;
1104	vis = XGetVisualInfo(context->visual->dpy, templateFlags, &templateVis, &count);
1105	CRASSERT(vis);
1106	if (!vis)
1107	return;
1108
1109	/* create new context */
1110	crDebug("Render SPU: Creating new GLX context with visual 0x%x", newVisualID);
1111	context->context = render_spu.ws.glXCreateContext(context->visual->dpy,
1112	vis, NULL,
1113	render_spu.try_direct);
1114	CRASSERT(context->context);
1115
1116	#if USE_GLX_COPYCONTEXT
1117	/* copy old context state to new context */
1118	render_spu.ws.glXCopyContext(context->visual->dpy,
1119	oldContext, context->context, ~0);
1120	crDebug("Render SPU: Done copying context state");
1121	#endif
1122
1123	/* destroy old context */
1124	render_spu.ws.glXDestroyContext(context->visual->dpy, oldContext);
1125
1126	context->visual->visual = vis;
1127	}
1128
1129
1130	void
1131	renderspu_SystemDestroyContext( ContextInfo *context )
1132	{
1133	#ifdef USE_OSMESA
1134	if (render_spu.use_osmesa)
1135	{
1136	render_spu.OSMesaDestroyContext( (OSMesaContext) context->context );
1137	}
1138	else
1139	#endif
1140	{
1141	#if 0
1142	/* XXX disable for now - causes segfaults w/ NVIDIA's driver */
1143	render_spu.ws.glXDestroyContext( context->visual->dpy, context->context );
1144	#endif
1145	}
1146	context->visual = NULL;
1147	context->context = 0;
1148	}
1149
1150
1151	#ifdef USE_OSMESA
1152	static void
1153	check_buffer_size( WindowInfo *window )
1154	{
1155	if (window->width != window->in_buffer_width
1156	\|\| window->height != window->in_buffer_height
1157	\|\| ! window->buffer) {
1158	crFree(window->buffer);
1159
1160	window->buffer = crCalloc(window->width * window->height
1161	* 4 * sizeof (GLubyte));
1162
1163	window->in_buffer_width = window->width;
1164	window->in_buffer_height = window->height;
1165
1166	crDebug("Render SPU: dimensions changed to %d x %d", window->width, window->height);
1167	}
1168	}
1169	#endif
1170
1171
1172	void
1173	renderspu_SystemMakeCurrent( WindowInfo *window, GLint nativeWindow,
1174	ContextInfo *context )
1175	{
1176	Bool b;
1177
1178	CRASSERT(render_spu.ws.glXMakeCurrent);
1179	window->appWindow = nativeWindow;
1180
1181	/crDebug("%s nativeWindow=0x%x", __FUNCTION__, (int) nativeWindow);/
1182
1183	#ifdef USE_OSMESA
1184	if (render_spu.use_osmesa) {
1185	check_buffer_size(window);
1186	render_spu.OSMesaMakeCurrent( (OSMesaContext) context->context,
1187	window->buffer, GL_UNSIGNED_BYTE,
1188	window->width, window->height);
1189	return;
1190	}
1191	#endif
1192
1193	if (window && context) {
1194	if (window->visual != context->visual) {
1195	crDebug("Render SPU: MakeCurrent visual mismatch (win(%d) bits:0x%x != ctx(%d) bits:0x%x); remaking window.",
1196	window->id, window->visual->visAttribs,
1197	context->id, context->visual->visAttribs);
1198	/*
1199	* XXX have to revisit this issue!!!
1200	*
1201	* But for now we destroy the current window
1202	* and re-create it with the context's visual abilities
1203	*/
1204	#ifndef SOLARIS_9_X_BUG
1205	/*
1206	I'm having some really weird issues if I destroy this window
1207	when I'm using the version of sunX that comes with Solaris 9.
1208	Subsiquent glX calls return GLXBadCurrentWindow error.
1209
1210	This is an issue even when running Linux version and using
1211	the Solaris 9 sunX as a display.
1212	-- jw
1213
1214	jw: we might have to call glXMakeCurrent(dpy, 0, 0) to unbind
1215	the context from the window before destroying it. -Brian
1216	*/
1217	render_spu.ws.glXMakeCurrent(window->visual->dpy, 0, 0);
1218	renderspu_SystemDestroyWindow( window );
1219	#endif
1220	renderspu_SystemCreateWindow( context->visual, window->visible, window );
1221	/*
1222	crError("In renderspu_SystemMakeCurrent() window and context"
1223	" weren't created with same visual!");
1224	*/
1225	}
1226
1227	CRASSERT(context->context);
1228
1229	#if 0
1230	if (render_spu.render_to_crut_window) {
1231	if (render_spu.crut_drawable == 0) {
1232	/* We don't know the X drawable ID yet. Ask mothership for it. */
1233	char response[8096];
1234	CRConnection *conn = crMothershipConnect();
1235	if (!conn)
1236	{
1237	crError("Couldn't connect to the mothership to get CRUT drawable-- "
1238	"I have no idea what to do!");
1239	}
1240	crMothershipGetParam( conn, "crut_drawable", response );
1241	render_spu.crut_drawable = crStrToInt(response);
1242	crMothershipDisconnect(conn);
1243
1244	crDebug("Render SPU: using CRUT drawable: 0x%x",
1245	render_spu.crut_drawable);
1246	if (!render_spu.crut_drawable) {
1247	crDebug("Render SPU: Crut drawable 0 is invalid");
1248	/* Continue with nativeWindow = 0; we'll render to the window that
1249	* we (the Render SPU) previously created.
1250	*/
1251	}
1252	}
1253
1254	nativeWindow = render_spu.crut_drawable;
1255	}
1256	#endif
1257
1258	if ((render_spu.render_to_crut_window \|\| render_spu.render_to_app_window)
1259	&& nativeWindow)
1260	{
1261	/* We're about to bind the rendering context to a window that we
1262	* (the Render SPU) did not create. The window was created by the
1263	* application or the CRUT server.
1264	* Make sure the window ID is valid and that the window's X visual is
1265	* the same as the rendering context's.
1266	*/
1267	if (WindowExists(window->visual->dpy, nativeWindow))
1268	{
1269	int vid = GetWindowVisualID(window->visual->dpy, nativeWindow);
1270	GLboolean recreated = GL_FALSE;
1271
1272	/* check that the window's visual and context's visual match */
1273	if (vid != (int) context->visual->visual->visualid) {
1274	crWarning("Render SPU: Can't bind context %d to CRUT/native window "
1275	"0x%x because of different X visuals (0x%x != 0x%x)!",
1276	context->id, (int) nativeWindow,
1277	vid, (int) context->visual->visual->visualid);
1278	crWarning("Render SPU: Trying to recreate GLX context to match.");
1279	/* Try to recreate the GLX context so that it uses the same
1280	* GLX visual as the window.
1281	*/
1282	#if !USE_GLX_COPYCONTEXT
1283	if (context->everCurrent) {
1284	get_state(&SavedState);
1285	}
1286	#endif
1287	renderspu_RecreateContext(context, vid);
1288	recreated = GL_TRUE;
1289	}
1290
1291	/* OK, this should work */
1292	window->nativeWindow = (Window) nativeWindow;
1293	b = render_spu.ws.glXMakeCurrent( window->visual->dpy,
1294	window->nativeWindow,
1295	context->context );
1296	CRASSERT(b);
1297	#if !USE_GLX_COPYCONTEXT
1298	if (recreated) {
1299	set_state(&SavedState);
1300	}
1301	#endif
1302	}
1303	else
1304	{
1305	crWarning("Render SPU: render_to_app/crut_window option is set but "
1306	"the window ID 0x%x is invalid on the display named %s",
1307	(unsigned int) nativeWindow,
1308	DisplayString(window->visual->dpy));
1309	CRASSERT(window->window);
1310	b = render_spu.ws.glXMakeCurrent( window->visual->dpy,
1311	window->window, context->context );
1312	CRASSERT(b);
1313	}
1314	}
1315	else
1316	{
1317	/* This is the normal case - rendering to the render SPU's own window */
1318	CRASSERT(window->window);
1319	#if 0
1320	crDebug("calling glXMakecurrent(%p, 0x%x, 0x%x)",
1321	window->visual->dpy,
1322	(int) window->window, (int) context->context );
1323	#endif
1324	b = render_spu.ws.glXMakeCurrent( window->visual->dpy,
1325	window->window, context->context );
1326	if (!b) {
1327	crWarning("glXMakeCurrent(%p, 0x%x, %p) failed! (winId %d, ctxId %d)",
1328	window->visual->dpy,
1329	(int) window->window, (void *) context->context,
1330	window->id, context->id );
1331	}
1332	/CRASSERT(b);/
1333	}
1334
1335	/* XXX this is a total hack to work around an NVIDIA driver bug */
1336	#if 0
1337	if (render_spu.self.GetFloatv && context->haveWindowPosARB) {
1338	GLfloat f[4];
1339	render_spu.self.GetFloatv(GL_CURRENT_RASTER_POSITION, f);
1340	if (!window->everCurrent \|\| f[1] < 0.0) {
1341	crDebug("Render SPU: Resetting raster pos");
1342	render_spu.self.WindowPos2iARB(0, 0);
1343	}
1344	}
1345	#endif
1346	}
1347
1348	#if 0
1349	/* XXX disabled for now due to problem with threadtest.conf */
1350	renderspu_GCWindow();
1351	#endif
1352	}
1353
1354
1355	/**
1356	* Set window (or pbuffer) size.
1357	*/
1358	void
1359	renderspu_SystemWindowSize( WindowInfo *window, GLint w, GLint h )
1360	{
1361	#ifdef USE_OSMESA
1362	if (render_spu.use_osmesa) {
1363	window->width = w;
1364	window->height = h;
1365	check_buffer_size(window);
1366	return;
1367	}
1368	#endif
1369
1370	CRASSERT(window);
1371	CRASSERT(window->visual);
1372	if (window->visual->visAttribs & CR_PBUFFER_BIT)
1373	{
1374	/* resizing a pbuffer */
1375	if (render_spu.pbufferWidth != 0 \|\| render_spu.pbufferHeight != 0) {
1376	/* size limit check */
1377	if (w > render_spu.pbufferWidth \|\| h > render_spu.pbufferHeight) {
1378	crWarning("Render SPU: Request for %d x %d pbuffer is larger than "
1379	"the configured size of %d x %d. ('pbuffer_size')",
1380	w, h, render_spu.pbufferWidth, render_spu.pbufferHeight);
1381	return;
1382	}
1383	/*
1384	* If the requested new pbuffer size is greater than 1/2 the size of
1385	* the max pbuffer, just use the max pbuffer size. This helps avoid
1386	* problems with VRAM memory fragmentation. If we run out of VRAM
1387	* for pbuffers, some drivers revert to software rendering. We want
1388	* to avoid that!
1389	*/
1390	if (w * h >= render_spu.pbufferWidth * render_spu.pbufferHeight / 2) {
1391	/* increase the dimensions to the max pbuffer size now */
1392	w = render_spu.pbufferWidth;
1393	h = render_spu.pbufferHeight;
1394	}
1395	}
1396
1397	if (window->width != w \|\| window->height != h) {
1398	/* Only resize if the new dimensions really are different */
1399	#ifdef CHROMIUM_THREADSAFE
1400	ContextInfo currentContext = (ContextInfo ) crGetTSD(&_RenderTSD);
1401	#else
1402	ContextInfo *currentContext = render_spu.currentContext;
1403	#endif
1404	/* Can't resize pbuffers, so destroy it and make a new one */
1405	render_spu.ws.glXDestroyPbuffer(window->visual->dpy, window->window);
1406	window->width = w;
1407	window->height = h;
1408	crDebug("Render SPU: Creating new %d x %d PBuffer (id=%d)",
1409	w, h, window->id);
1410	if (!createPBuffer(window->visual, window)) {
1411	crWarning("Render SPU: Unable to create PBuffer (out of VRAM?)!");
1412	}
1413	else if (currentContext && currentContext->currentWindow == window) {
1414	/* Determine if we need to bind the current context to new pbuffer */
1415	render_spu.ws.glXMakeCurrent(window->visual->dpy,
1416	window->window,
1417	currentContext->context );
1418	}
1419	}
1420	}
1421	else {
1422	/* Resize ordinary X window */
1423	/*
1424	* This is ugly, but it seems to be the only thing that works.
1425	* Basically, XResizeWindow() doesn't seem to always take effect
1426	* immediately.
1427	* Even after an XSync(), the GetWindowAttributes() call will sometimes
1428	* return the old window size. So, we use a loop to repeat the window
1429	* resize until it seems to take effect.
1430	*/
1431	int attempt;
1432	crDebug("Render SPU: XResizeWindow (%x, %x, %d, %d)", window->visual->dpy, window->window, w, h);
1433	XResizeWindow(window->visual->dpy, window->window, w, h);
1434	XSync(window->visual->dpy, 0);
1435	#if 0
1436	for (attempt = 0; attempt < 3; attempt++) { /* try three times max */
1437	XWindowAttributes attribs;
1438	/* Now, query the window size */
1439	XGetWindowAttributes(window->visual->dpy, window->window, &attribs);
1440	if (attribs.width == w && attribs.height == h)
1441	break;
1442	/* sleep for a millisecond and try again */
1443	crMsleep(1);
1444	}
1445	#endif
1446	}
1447
1448	/* finally, save the new size */
1449	window->width = w;
1450	window->height = h;
1451	}
1452
1453
1454	void
1455	renderspu_SystemGetWindowGeometry( WindowInfo *window,
1456	GLint x, GLint y, GLint w, GLint h )
1457	{
1458	#ifdef USE_OSMESA
1459	if (render_spu.use_osmesa) {
1460	*w = window->width;
1461	*h = window->height;
1462	return;
1463	}
1464	#endif
1465
1466	CRASSERT(window);
1467	CRASSERT(window->visual);
1468	CRASSERT(window->window);
1469	if (window->visual->visAttribs & CR_PBUFFER_BIT)
1470	{
1471	*x = 0;
1472	*y = 0;
1473	*w = window->width;
1474	*h = window->height;
1475	}
1476	else
1477	{
1478	Window xw, child, root;
1479	unsigned int width, height, bw, d;
1480	int rx, ry;
1481
1482	if ((render_spu.render_to_app_window \|\| render_spu.render_to_crut_window)
1483	&& window->nativeWindow) {
1484	xw = window->nativeWindow;
1485	}
1486	else {
1487	xw = window->window;
1488	}
1489
1490	XGetGeometry(window->visual->dpy, xw, &root,
1491	x, y, &width, &height, &bw, &d);
1492
1493	/* translate x/y to screen coords */
1494	if (!XTranslateCoordinates(window->visual->dpy, xw, root,
1495	0, 0, &rx, &ry, &child)) {
1496	rx = ry = 0;
1497	}
1498	*x = rx;
1499	*y = ry;
1500	*w = (int) width;
1501	*h = (int) height;
1502	}
1503	}
1504
1505
1506	void
1507	renderspu_SystemGetMaxWindowSize( WindowInfo window, GLint w, GLint *h )
1508	{
1509	int scrn;
1510	#ifdef USE_OSMESA
1511	if (render_spu.use_osmesa) {
1512	*w = 2048;
1513	*h = 2048;
1514	return;
1515	}
1516	#endif
1517
1518	CRASSERT(window);
1519	CRASSERT(window->visual);
1520	CRASSERT(window->window);
1521
1522	scrn = DefaultScreen(window->visual->dpy);
1523	*w = DisplayWidth(window->visual->dpy, scrn);
1524	*h = DisplayHeight(window->visual->dpy, scrn);
1525	}
1526
1527
1528	void
1529	renderspu_SystemWindowPosition( WindowInfo *window, GLint x, GLint y )
1530	{
1531	#ifdef USE_OSMESA
1532	if (render_spu.use_osmesa)
1533	return;
1534	#endif
1535
1536	CRASSERT(window);
1537	CRASSERT(window->visual);
1538	if ((window->visual->visAttribs & CR_PBUFFER_BIT) == 0)
1539	{
1540	crDebug("Render SPU: XMoveWindow (%x, %x, %d, %d)", window->visual->dpy, window->window, x, y);
1541	XMoveWindow(window->visual->dpy, window->window, x, y);
1542	XSync(window->visual->dpy, 0);
1543	}
1544	}
1545
1546	void
1547	renderspu_SystemWindowVisibleRegion( WindowInfo window, GLint cRects, GLint pRects )
1548	{
1549	#ifdef USE_OSMESA
1550	if (render_spu.use_osmesa)
1551	return;
1552	#endif
1553
1554	CRASSERT(window);
1555	CRASSERT(window->visual);
1556	if ((window->visual->visAttribs & CR_PBUFFER_BIT) == 0)
1557	{
1558	int evb, erb, i;
1559	XRectangle *pXRects;
1560
1561	if (!XShapeQueryExtension(window->visual->dpy, &evb, &erb))
1562	{
1563	crWarning("Render SPU: Display %s doesn't support SHAPE extension", window->visual->displayName);
1564	return;
1565	}
1566
1567	if (cRects>0)
1568	{
1569	pXRects = (XRectangle ) crAlloc(cRects sizeof(XRectangle));
1570
1571	for (i=0; i<cRects; ++i)
1572	{
1573	pXRects[i].x = (short) pRects[4*i];
1574	pXRects[i].y = (short) pRects[4*i+1];
1575	pXRects[i].width = (unsigned short) (pRects[4i+2]-pRects[4i]);
1576	pXRects[i].height = (unsigned short) (pRects[4i+3]-pRects[4i+1]);
1577	}
1578	}
1579	else
1580	{
1581	pXRects = (XRectangle *) crAlloc(sizeof(XRectangle));
1582	pXRects[0].x = 0;
1583	pXRects[0].y = 0;
1584	pXRects[0].width = 0;
1585	pXRects[0].height = 0;
1586	cRects = 1;
1587	}
1588
1589	crDebug("Render SPU: XShapeCombineRectangles (%x, %x, cRects=%i)", window->visual->dpy, window->window, cRects);
1590
1591	XShapeCombineRectangles(window->visual->dpy, window->window, ShapeBounding, 0, 0,
1592	pXRects, cRects, ShapeSet, YXBanded);
1593	XSync(window->visual->dpy, 0);
1594	crFree(pXRects);
1595	}
1596	}
1597
1598	/* Either show or hide the render SPU's window. */
1599	void
1600	renderspu_SystemShowWindow( WindowInfo *window, GLboolean showIt )
1601	{
1602	#ifdef USE_OSMESA
1603	if (render_spu.use_osmesa)
1604	return;
1605	#endif
1606
1607	if (window->visual->dpy && window->window &&
1608	(window->visual->visAttribs & CR_PBUFFER_BIT) == 0)
1609	{
1610	if (showIt)
1611	{
1612	XMapWindow( window->visual->dpy, window->window );
1613	XSync(window->visual->dpy, 0);
1614	}
1615	else
1616	{
1617	XUnmapWindow( window->visual->dpy, window->window );
1618	XSync(window->visual->dpy, 0);
1619	}
1620	window->visible = showIt;
1621	}
1622	}
1623
1624
1625	static void
1626	MarkWindow(WindowInfo *w)
1627	{
1628	static GC gc = 0; /* XXX per-window??? */
1629	if (!gc) {
1630	/* Create a GC for drawing invisible lines */
1631	XGCValues gcValues;
1632	gcValues.function = GXnoop;
1633	gc = XCreateGC(w->visual->dpy, w->nativeWindow, GCFunction, &gcValues);
1634	}
1635	XDrawLine(w->visual->dpy, w->nativeWindow, gc, 0, 0, w->width, w->height);
1636	}
1637
1638
1639	void
1640	renderspu_SystemSwapBuffers( WindowInfo *w, GLint flags )
1641	{
1642	CRASSERT(w);
1643
1644	#if 00 /TEMPORARY - FOR TESTING SWAP LOCK/
1645	if (1) {
1646	/* random delay */
1647	int k = crRandInt(1000 * 100, 750*1000);
1648	static int first = 1;
1649	if (first) {
1650	crRandAutoSeed();
1651	first = 0;
1652	}
1653	usleep(k);
1654	}
1655	#endif
1656
1657	/* render_to_app_window:
1658	* w->nativeWindow will only be non-zero if the
1659	* render_spu.render_to_app_window option is true and
1660	* MakeCurrent() recorded the nativeWindow handle in the WindowInfo
1661	* structure.
1662	*/
1663	if (w->nativeWindow) {
1664	render_spu.ws.glXSwapBuffers( w->visual->dpy, w->nativeWindow );
1665	#if 0
1666	MarkWindow(w);
1667	#else
1668	(void) MarkWindow;
1669	#endif
1670	}
1671	else {
1672	render_spu.ws.glXSwapBuffers( w->visual->dpy, w->window );
1673	}
1674	}

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source: vbox/trunk/src/VBox/HostServices/SharedOpenGL/render/renderspu_glx.c@ 26753

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