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root/cebix/SheepShaver/src/Unix/video_x.cpp

Comparing SheepShaver/src/Unix/video_x.cpp (file contents):
Revision 1.41 by gbeauche, 2005-04-02T09:54:16Z vs.
Revision 1.52 by cebix, 2010-02-21T09:59:52Z

#	Line 1 | Line 1
1		/*
2		*  video_x.cpp - Video/graphics emulation, X11 specific stuff
3		*
4	<	*  SheepShaver (C) 1997-2005 Marc Hellwig and Christian Bauer
4	>	*  SheepShaver (C) Marc Hellwig and Christian Bauer
5		*
6		*  This program is free software; you can redistribute it and/or modify
7		*  it under the terms of the GNU General Public License as published by
#	Line 37 | Line 37
37		#include <sys/shm.h>
38		#include <errno.h>
39		#include <pthread.h>
40	+	#include <semaphore.h>
41
42		#include <algorithm>
43
#	Line 46 | Line 47
47		#endif
48
49		#ifdef ENABLE_XF86_DGA
50	<	# include <X11/extensions/xf86dga.h>
50	>	# include <X11/extensions/Xxf86dga.h>
51		#endif
52
53		#ifdef ENABLE_XF86_VIDMODE
54		# include <X11/extensions/xf86vmode.h>
55		#endif
56
57	+	#ifdef ENABLE_FBDEV_DGA
58	+	# include <sys/mman.h>
59	+	#endif
60	+
61		#include "main.h"
62		#include "adb.h"
63		#include "prefs.h"
#	Line 83 | Line 88 | static pthread_attr_t redraw_thread_attr
88		static volatile bool redraw_thread_cancel;      // Flag: Cancel Redraw thread
89		static pthread_t redraw_thread;                         // Redraw thread
90
86	–	static bool local_X11;                                          // Flag: X server running on local machine?
91		static volatile bool thread_stop_req = false;
92	<	static volatile bool thread_stop_ack = false;   // Acknowledge for thread_stop_req
92	>	static sem_t thread_stop_ack;
93	>	static sem_t thread_resume_req;
94
95	+	static bool local_X11;                                          // Flag: X server running on local machine?
96		static bool has_dga = false;                            // Flag: Video DGA capable
97		static bool has_vidmode = false;                        // Flag: VidMode extension available
98
#	Line 164 | Line 170 | static int num_x_video_modes;
170		#endif
171
172		// Mutex to protect palette
173	<	#ifdef HAVE_SPINLOCKS
168	<	static spinlock_t x_palette_lock = SPIN_LOCK_UNLOCKED;
169	<	#define LOCK_PALETTE spin_lock(&x_palette_lock)
170	<	#define UNLOCK_PALETTE spin_unlock(&x_palette_lock)
171	<	#elif defined(HAVE_PTHREADS)
173	>	#if defined(HAVE_PTHREADS)
174		static pthread_mutex_t x_palette_lock = PTHREAD_MUTEX_INITIALIZER;
175		#define LOCK_PALETTE pthread_mutex_lock(&x_palette_lock)
176		#define UNLOCK_PALETTE pthread_mutex_unlock(&x_palette_lock)
177	+	#elif defined(HAVE_SPINLOCKS)
178	+	static spinlock_t x_palette_lock = SPIN_LOCK_UNLOCKED;
179	+	#define LOCK_PALETTE spin_lock(&x_palette_lock)
180	+	#define UNLOCK_PALETTE spin_unlock(&x_palette_lock)
181		#else
182		#define LOCK_PALETTE
183		#define UNLOCK_PALETTE
184		#endif
185
186		// Mutex to protect frame buffer
187	<	#ifdef HAVE_SPINLOCKS
182	<	static spinlock_t frame_buffer_lock = SPIN_LOCK_UNLOCKED;
183	<	#define LOCK_FRAME_BUFFER spin_lock(&frame_buffer_lock)
184	<	#define UNLOCK_FRAME_BUFFER spin_unlock(&frame_buffer_lock)
185	<	#elif defined(HAVE_PTHREADS)
187	>	#if defined(HAVE_PTHREADS)
188		static pthread_mutex_t frame_buffer_lock = PTHREAD_MUTEX_INITIALIZER;
189		#define LOCK_FRAME_BUFFER pthread_mutex_lock(&frame_buffer_lock);
190		#define UNLOCK_FRAME_BUFFER pthread_mutex_unlock(&frame_buffer_lock);
191	+	#elif defined(HAVE_SPINLOCKS)
192	+	static spinlock_t frame_buffer_lock = SPIN_LOCK_UNLOCKED;
193	+	#define LOCK_FRAME_BUFFER spin_lock(&frame_buffer_lock)
194	+	#define UNLOCK_FRAME_BUFFER spin_unlock(&frame_buffer_lock)
195		#else
196		#define LOCK_FRAME_BUFFER
197		#define UNLOCK_FRAME_BUFFER
#	Line 577 | Line 583 | static bool open_window(int width, int h
583		use_vosf = true;
584		// Allocate memory for frame buffer (SIZE is extended to page-boundary)
585		the_host_buffer = the_buffer_copy;
586	<	the_buffer_size = page_extend((aligned_height + 2) * (the_host_buffer_row_bytes = img->bytes_per_line));
586	>	the_buffer_size = page_extend((aligned_height + 2) * img->bytes_per_line);
587		the_buffer = (uint8 *)vm_acquire(the_buffer_size);
588		the_buffer_copy = (uint8 *)malloc(the_buffer_size);
589		D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
#	Line 633 | Line 639 | static bool open_window(int width, int h
639		return true;
640		}
641
642	<	// Open FBDev display
643	<	static bool open_fbdev(int width, int height)
642	>	// Open FBDev DGA display
643	>	static bool open_fbdev_dga(int width, int height)
644		{
645		#ifdef ENABLE_FBDEV_DGA
646	+	#ifdef ENABLE_XF86_VIDMODE
647	+	// Switch to best mode
648	+	if (has_vidmode) {
649	+	int best = -1;
650	+	for (int i = 0; i < num_x_video_modes; i++) {
651	+	if (x_video_modes[i]->hdisplay == width && x_video_modes[i]->vdisplay == height) {
652	+	best = i;
653	+	break;
654	+	}
655	+	};
656	+	assert(best != -1);
657	+	XF86VidModeSwitchToMode(x_display, screen, x_video_modes[best]);
658	+	XF86VidModeSetViewPort(x_display, screen, 0, 0);
659	+	D(bug("[fbdev] VideoMode %d: %d x %d @ %d\n", best,
660	+	x_video_modes[best]->hdisplay, x_video_modes[best]->vdisplay,
661	+	1000 * x_video_modes[best]->dotclock / (x_video_modes[best]->htotal * x_video_modes[best]->vtotal)));
662	+	}
663	+	#endif
664	+
665		if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo) != 0) {
666		D(bug("[fbdev] Can't get FSCREENINFO: %s\n", strerror(errno)));
667		return false;
#	Line 674 | Line 699 | static bool open_fbdev(int width, int he
699		}
700		D(bug("[fbdev] visual: %s\n", fb_visual_str));
701
702	<	if (fb_visual != FB_VISUAL_TRUECOLOR) {
702	>	if (fb_visual != FB_VISUAL_TRUECOLOR && fb_visual != FB_VISUAL_DIRECTCOLOR) {
703		D(bug("[fbdev] visual '%s' not supported\n", fb_visual_str));
704		return false;
705		}
#	Line 706 | Line 731 | static bool open_fbdev(int width, int he
731		GrabModeAsync, GrabModeAsync, CurrentTime);
732		XGrabPointer(x_display, the_win, True,
733		PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
734	<	GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
734	>	GrabModeAsync, GrabModeAsync, the_win, None, CurrentTime);
735		disable_mouse_accel();
736
737		// Create no_cursor
#	Line 717 | Line 742 | static bool open_fbdev(int width, int he
742		XDefineCursor(x_display, the_win, mac_cursor);
743
744		// Init blitting routines
745	+	int bytes_per_row = TrivialBytesPerRow((width + 7) & ~7, DepthModeForPixelDepth(depth));
746		#if ENABLE_VOSF
747		// Extract current screen color masks (we are in True Color mode)
748		VisualFormat visualFormat;
#	Line 743 | Line 769 | static bool open_fbdev(int width, int he
769		// Allocate memory for frame buffer (SIZE is extended to page-boundary)
770		use_vosf = true;
771		the_host_buffer = the_buffer;
772	<	the_host_buffer_row_bytes = TrivialBytesPerRow((width + 7) & ~7, DepthModeForPixelDepth(visualFormat.depth));
747	<	the_buffer_size = page_extend((height + 2) * the_host_buffer_row_bytes);
772	>	the_buffer_size = page_extend((height + 2) * bytes_per_row);
773		the_buffer_copy = (uint8 *)malloc(the_buffer_size);
774		the_buffer = (uint8 *)vm_acquire(the_buffer_size);
775		D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
#	Line 753 | Line 778 | static bool open_fbdev(int width, int he
778		// Set frame buffer base
779		D(bug("the_buffer = %p, use_vosf = %d\n", the_buffer, use_vosf));
780		screen_base = Host2MacAddr(the_buffer);
781	<	VModes[cur_mode].viRowBytes = TrivialBytesPerRow((width + 7) & ~7, DepthModeForPixelDepth(depth));
781	>	VModes[cur_mode].viRowBytes = bytes_per_row;
782		return true;
783		#else
784		ErrorAlert("SheepShaver has been compiled with DGA support disabled.");
#	Line 761 | Line 786 | static bool open_fbdev(int width, int he
786		#endif
787		}
788
789	<	// Open DGA display (!! should use X11 VidMode extensions to set mode)
790	<	static bool open_dga(int width, int height)
789	>	// Open XF86 DGA display (!! should use X11 VidMode extensions to set mode)
790	>	static bool open_xf86_dga(int width, int height)
791		{
792		if (is_fbdev_dga_mode)
793		return false;
#	Line 835 | Line 860 | static bool open_dga(int width, int heig
860		if (use_vosf) {
861		// Allocate memory for frame buffer (SIZE is extended to page-boundary)
862		the_host_buffer = the_buffer;
863	<	the_buffer_size = page_extend((height + 2) * (the_host_buffer_row_bytes = bytes_per_row));
863	>	the_buffer_size = page_extend((height + 2) * bytes_per_row);
864		the_buffer_copy = (uint8 *)malloc(the_buffer_size);
865		the_buffer = (uint8 *)vm_acquire(the_buffer_size);
866		D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
#	Line 856 | Line 881 | static bool open_dga(int width, int heig
881		#endif
882		}
883
884	+	// Open DGA display
885	+	static bool open_dga(int width, int height)
886	+	{
887	+	bool display_open;
888	+
889	+	display_open = open_xf86_dga(width, height);
890	+	#ifdef ENABLE_FBDEV_DGA
891	+	// Try to fallback to FBDev DGA mode
892	+	if (!display_open) {
893	+	is_fbdev_dga_mode = true;
894	+	display_open = open_fbdev_dga(width, height);
895	+	}
896	+	#endif
897	+
898	+	// Common DGA display initialization
899	+	if (display_open) {
900	+
901	+	// Fake image to get display bounds in the refresh function
902	+	if ((img = (XImage *)malloc(sizeof(*img))) == NULL)
903	+	return false;
904	+	img->width = DisplayWidth(x_display, screen);
905	+	img->height = DisplayHeight(x_display, screen);
906	+	img->depth = is_fbdev_dga_mode ? xdepth : depth;
907	+	img->bytes_per_line = TrivialBytesPerRow(img->width, DepthModeForPixelDepth(img->depth));
908	+	}
909	+
910	+	return display_open;
911	+	}
912	+
913		static bool open_display(void)
914		{
915		D(bug("open_display()\n"));
#	Line 944 | Line 998 | static bool open_display(void)
998		display_type = mode.viType;
999		depth = depth_of_video_mode(mode.viAppleMode);
1000
1001	<	bool display_open = false;
1002	<	if (display_type == DIS_SCREEN) {
1001	>	bool display_open;
1002	>	switch (display_type) {
1003	>	case DIS_SCREEN:
1004		display_open = open_dga(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
1005	<	#ifdef ENABLE_FBDEV_DGA
1006	<	// Try to fallback to FBDev DGA mode
952	<	if (!display_open) {
953	<	is_fbdev_dga_mode = true;
954	<	display_open = open_fbdev(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
955	<	}
956	<	#endif
957	<
958	<	}
959	<	else if (display_type == DIS_WINDOW)
1005	>	break;
1006	>	case DIS_WINDOW:
1007		display_open = open_window(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
1008	+	break;
1009	+	default:
1010	+	display_open = false;
1011	+	break;
1012	+	}
1013
1014		#ifdef ENABLE_VOSF
1015		if (use_vosf) {
#	Line 973 | Line 1025 | static bool open_display(void)
1025		#endif
1026
1027		// Zero screen buffers, viRowBytes is initialized at this stage
1028	<	memset(the_buffer, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1029	<	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1028	>	if (display_open) {
1029	>	memset(the_buffer, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1030	>	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1031	>	}
1032		return display_open;
1033		}
1034
#	Line 1011 | Line 1065 | static void close_window(void)
1065		}
1066
1067		// Close FBDev mode
1068	<	static void close_fbdev(void)
1068	>	static void close_fbdev_dga(void)
1069		{
1070		#ifdef ENABLE_FBDEV_DGA
1017	–	XUngrabPointer(x_display, CurrentTime);
1018	–	XUngrabKeyboard(x_display, CurrentTime);
1019	–
1071		uint8 *fb_base;
1072	<	if (!use_vosf) {
1022	<	// don't free() the screen buffer in driver_base dtor
1072	>	if (!use_vosf)
1073		fb_base = the_buffer;
1024	–	the_buffer = NULL;
1025	–	}
1074		#ifdef ENABLE_VOSF
1075	<	else {
1028	<	// don't free() the screen buffer in driver_base dtor
1075	>	else
1076		fb_base = the_host_buffer;
1030	–	the_host_buffer = NULL;
1031	–	}
1077		#endif
1078		munmap(fb_base, fb_finfo.smem_len);
1079		#endif
1080		}
1081
1082	+	// Close XF86 DGA mode
1083	+	static void close_xf86_dga(void)
1084	+	{
1085	+	#ifdef ENABLE_XF86_DGA
1086	+	XF86DGADirectVideo(x_display, screen, 0);
1087	+	#endif
1088	+	}
1089	+
1090		// Close DGA mode
1091		static void close_dga(void)
1092		{
1093		if (is_fbdev_dga_mode)
1094	<	return;
1094	>	close_fbdev_dga();
1095	>	else
1096	>	close_xf86_dga();
1097
1043	–	#ifdef ENABLE_XF86_DGA
1044	–	XF86DGADirectVideo(x_display, screen, 0);
1098		XUngrabPointer(x_display, CurrentTime);
1099		XUngrabKeyboard(x_display, CurrentTime);
1047	–	#endif
1100
1101		#ifdef ENABLE_XF86_VIDMODE
1102		if (has_vidmode)
1103		XF86VidModeSwitchToMode(x_display, screen, x_video_modes[0]);
1104		#endif
1105
1106	+	// Release fake image (it's not a normal XImage!)
1107	+	free(img);
1108	+	img = NULL;
1109	+
1110		if (!use_vosf) {
1111		// don't free() the screen buffer in driver_base dtor
1112		the_buffer = NULL;
#	Line 1065 | Line 1121 | static void close_dga(void)
1121
1122		static void close_display(void)
1123		{
1124	<	if (display_type == DIS_SCREEN) {
1125	<	if (is_fbdev_dga_mode)
1070	<	close_fbdev();
1071	<	else
1072	<	close_dga();
1073	<	}
1124	>	if (display_type == DIS_SCREEN)
1125	>	close_dga();
1126		else if (display_type == DIS_WINDOW)
1127		close_window();
1128
#	Line 1300 | Line 1352 | static void add_window_modes(VideoInfo *
1352		static bool has_mode(int x, int y)
1353		{
1354		#ifdef ENABLE_XF86_VIDMODE
1355	<	for (int i=0; i<num_x_video_modes; i++)
1356	<	if (x_video_modes[i]->hdisplay >= x && x_video_modes[i]->vdisplay >= y)
1357	<	return true;
1358	<	return false;
1359	<	#else
1360	<	return DisplayWidth(x_display, screen) >= x && DisplayHeight(x_display, screen) >= y;
1355	>	if (has_vidmode) {
1356	>	for (int i=0; i<num_x_video_modes; i++)
1357	>	if (x_video_modes[i]->hdisplay == x && x_video_modes[i]->vdisplay == y)
1358	>	return true;
1359	>	return false;
1360	>	}
1361		#endif
1362	+	return DisplayWidth(x_display, screen) >= x && DisplayHeight(x_display, screen) >= y;
1363		}
1364
1365		bool VideoInit(void)
#	Line 1319 | Line 1372 | bool VideoInit(void)
1372
1373		// Check if X server runs on local machine
1374		local_X11 = (strncmp(XDisplayName(x_display_name), ":", 1) == 0)
1375	+	|| (strncmp(XDisplayName(x_display_name), "/", 1) == 0)
1376		|| (strncmp(XDisplayName(x_display_name), "unix:", 5) == 0);
1377
1378		// Init keycode translation
#	Line 1373 | Line 1427 | bool VideoInit(void)
1427		// VidMode available?
1428		int vm_event_base, vm_error_base;
1429		has_vidmode = XF86VidModeQueryExtension(x_display, &vm_event_base, &vm_error_base);
1430	<	if (has_vidmode)
1430	>	if (has_vidmode) {
1431	>	int vm_major_version, vm_minor_version;
1432	>	XF86VidModeQueryVersion(x_display, &vm_major_version, &vm_minor_version);
1433	>	D(bug("VidMode extension %d.%d available\n", vm_major_version, vm_minor_version));
1434		XF86VidModeGetAllModeLines(x_display, screen, &num_x_video_modes, &x_video_modes);
1435	+	}
1436		#endif
1437
1438		#ifdef ENABLE_FBDEV_DGA
#	Line 1486 | Line 1544 | bool VideoInit(void)
1544		#endif
1545		} else
1546		add_custom_mode(p, display_type, default_width, default_height, default_mode, APPLE_CUSTOM);
1547	+
1548	+	// Add extra VidMode capable modes
1549	+	if (display_type == DIS_SCREEN) {
1550	+	struct {
1551	+	int w;
1552	+	int h;
1553	+	int apple_id;
1554	+	}
1555	+	video_modes[] = {
1556	+	{  640,  480, APPLE_640x480   },
1557	+	{  800,  600, APPLE_800x600   },
1558	+	{ 1024,  768, APPLE_1024x768  },
1559	+	{ 1152,  768, APPLE_1152x768  },
1560	+	{ 1152,  900, APPLE_1152x900  },
1561	+	{ 1280, 1024, APPLE_1280x1024 },
1562	+	{ 1600, 1200, APPLE_1600x1200 },
1563	+	{ 0, }
1564	+	};
1565	+
1566	+	for (int i = 0; video_modes[i].w != 0; i++) {
1567	+	const int w = video_modes[i].w;
1568	+	const int h = video_modes[i].h;
1569	+	if (w >= default_width || h >= default_height)
1570	+	continue;
1571	+	if (has_mode(w, h)) {
1572	+	#ifdef ENABLE_VOSF
1573	+	if (is_fbdev_dga_mode) {
1574	+	for (unsigned int d = APPLE_1_BIT; d <= default_mode; d++)
1575	+	if (find_visual_for_depth(d))
1576	+	add_custom_mode(p, display_type, w, h, d, video_modes[i].apple_id);
1577	+	} else
1578	+	#endif
1579	+	add_custom_mode(p, display_type, w, h, default_mode, video_modes[i].apple_id);
1580	+	}
1581	+	}
1582	+	}
1583		} else if (window_modes) {
1584		for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++)
1585		if (find_visual_for_depth(d))
#	Line 1554 | Line 1648 | bool VideoInit(void)
1648		#endif
1649
1650		// Open window/screen
1651	<	if (!open_display())
1651	>	if (!open_display()) {
1652	>	ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
1653		return false;
1654	+	}
1655
1656		#if 0
1657		// Ignore errors from now on
#	Line 1568 | Line 1664 | bool VideoInit(void)
1664
1665		// Start periodic thread
1666		XSync(x_display, false);
1667	+	if (sem_init(&thread_stop_ack, 0, 0) < 0)
1668	+	return false;
1669	+	if (sem_init(&thread_resume_req, 0, 0) < 0)
1670	+	return false;
1671		Set_pthread_attr(&redraw_thread_attr, 0);
1672		redraw_thread_cancel = false;
1673		redraw_thread_active = (pthread_create(&redraw_thread, &redraw_thread_attr, redraw_func, NULL) == 0);
#	Line 1587 | Line 1687 | void VideoExit(void)
1687		redraw_thread_cancel = true;
1688		pthread_cancel(redraw_thread);
1689		pthread_join(redraw_thread, NULL);
1690	+	sem_destroy(&thread_stop_ack);
1691	+	sem_destroy(&thread_resume_req);
1692		redraw_thread_active = false;
1693		}
1694
#	Line 1681 | Line 1783 | static void resume_emul(void)
1783		XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
1784		Window w = is_fbdev_dga_mode ? the_win : rootwin;
1785		XGrabKeyboard(x_display, w, True, GrabModeAsync, GrabModeAsync, CurrentTime);
1786	<	XGrabPointer(x_display, w, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
1786	>	XGrabPointer(x_display, w, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, is_fbdev_dga_mode ? w : None, None, CurrentTime);
1787		disable_mouse_accel();
1788		#ifdef ENABLE_XF86_DGA
1789		if (!is_fbdev_dga_mode) {
#	Line 2064 | Line 2166 | int16 video_mode_change(VidLocals *csSav
2166		csSave->savePage = ReadMacInt16(ParamPtr + csPage);
2167
2168		// Disable interrupts and pause redraw thread
2067	–	DisableInterrupt();
2068	–	thread_stop_ack = false;
2169		thread_stop_req = true;
2170	<	while (!thread_stop_ack) ;
2170	>	sem_wait(&thread_stop_ack);
2171	>	thread_stop_req = false;
2172	>	DisableInterrupt();
2173
2174		/* close old display */
2175		close_display();
#	Line 2088 | Line 2190 | int16 video_mode_change(VidLocals *csSav
2190		csSave->saveMode=VModes[cur_mode].viAppleMode;
2191
2192		// Enable interrupts and resume redraw thread
2091	–	thread_stop_req = false;
2193		EnableInterrupt();
2194	+	sem_post(&thread_resume_req);
2195		return noErr;
2196		}
2197		}
#	Line 2341 | Line 2443 | static void *redraw_func(void *arg)
2443		while (!redraw_thread_cancel) {
2444
2445		// Pause if requested (during video mode switches)
2446	<	while (thread_stop_req)
2447	<	thread_stop_ack = true;
2446	>	if (thread_stop_req) {
2447	>	sem_post(&thread_stop_ack);
2448	>	sem_wait(&thread_resume_req);
2449	>	}
2450
2451		int64 delay = next - GetTicks_usec();
2452		if (delay < -VIDEO_REFRESH_DELAY) {
#	Line 2366 | Line 2470 | static void *redraw_func(void *arg)
2470		XDisplayLock();
2471		#if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
2472		#ifdef ENABLE_XF86_DGA
2473	<	if (is_fbdev_dga_mode)
2473	>	if (!is_fbdev_dga_mode)
2474		XF86DGADirectVideo(x_display, screen, 0);
2475		#endif
2476		XUngrabPointer(x_display, CurrentTime);
#	Line 2456 | Line 2560 | static void *redraw_func(void *arg)
2560		}
2561		return NULL;
2562		}
2563	+
2564	+
2565	+	/*
2566	+	*  Record dirty area from NQD
2567	+	*/
2568	+
2569	+	void video_set_dirty_area(int x, int y, int w, int h)
2570	+	{
2571	+	VideoInfo const & mode = VModes[cur_mode];
2572	+	const int screen_width = VIDEO_MODE_X;
2573	+	const int screen_height = VIDEO_MODE_Y;
2574	+	const int bytes_per_row = VIDEO_MODE_ROW_BYTES;
2575	+
2576	+	#ifdef ENABLE_VOSF
2577	+	if (use_vosf) {
2578	+	vosf_set_dirty_area(x, y, w, h, screen_width, screen_height, bytes_per_row);
2579	+	return;
2580	+	}
2581	+	#endif
2582	+
2583	+	// XXX handle dirty bounding boxes for non-VOSF modes
2584	+	}

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