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

Comparing SheepShaver/src/Unix/video_x.cpp (file contents):
Revision 1.34 by gbeauche, 2004-12-18T18:34:56Z vs.
Revision 1.43 by gbeauche, 2005-06-22T12:24:36Z

#	Line 1 | Line 1
1		/*
2		*  video_x.cpp - Video/graphics emulation, X11 specific stuff
3		*
4	<	*  SheepShaver (C) 1997-2004 Marc Hellwig and Christian Bauer
4	>	*  SheepShaver (C) 1997-2005 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 18 | Line 18
18		*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19		*/
20
21	+	/*
22	+	*  NOTES:
23	+	*    The Ctrl key works like a qualifier for special actions:
24	+	*      Ctrl-Tab = suspend DGA mode
25	+	*      Ctrl-Esc = emergency quit
26	+	*      Ctrl-F1 = mount floppy
27	+	*      Ctrl-F5 = grab mouse (in windowed mode)
28	+	*/
29	+
30		#include "sysdeps.h"
31
32		#include <X11/Xlib.h>
#	Line 31 | Line 40
40
41		#include <algorithm>
42
43	+	#ifdef ENABLE_FBDEV_DGA
44	+	# include <linux/fb.h>
45	+	# include <sys/ioctl.h>
46	+	#endif
47	+
48		#ifdef ENABLE_XF86_DGA
49		# include <X11/extensions/xf86dga.h>
50		#endif
#	Line 39 | Line 53
53		# include <X11/extensions/xf86vmode.h>
54		#endif
55
56	+	#ifdef ENABLE_FBDEV_DGA
57	+	# include <sys/mman.h>
58	+	#endif
59	+
60		#include "main.h"
61		#include "adb.h"
62		#include "prefs.h"
#	Line 109 | Line 127 | static int color_class;
127		static int rshift, rloss, gshift, gloss, bshift, bloss; // Pixel format of DirectColor/TrueColor modes
128		static Colormap cmap[2];                                        // Two colormaps (DGA) for 8-bit mode
129		static XColor x_palette[256];                           // Color palette to be used as CLUT and gamma table
130	+	static int orig_accel_numer, orig_accel_denom, orig_threshold;  // Original mouse acceleration
131
132		static XColor black, white;
133		static unsigned long black_pixel, white_pixel;
#	Line 131 | Line 150 | static uint8 *the_buffer_copy = NULL;          /
150		static uint32 the_buffer_size;                          // Size of allocated the_buffer
151
152		// Variables for DGA mode
153	+	static bool is_fbdev_dga_mode = false;          // Flag: Use FBDev DGA mode?
154		static int current_dga_cmap;
155
156	+	#ifdef ENABLE_FBDEV_DGA
157	+	static int fb_dev_fd = -1;                                              // Handle to fb device name
158	+	static struct fb_fix_screeninfo fb_finfo;               // Fixed info
159	+	static struct fb_var_screeninfo fb_vinfo;               // Variable info
160	+	static struct fb_var_screeninfo fb_orig_vinfo;  // Variable info to restore later
161	+	static struct fb_cmap fb_oldcmap;                               // Colormap to restore later
162	+	#endif
163	+
164		#ifdef ENABLE_XF86_VIDMODE
165		// Variables for XF86 VidMode support
166		static XF86VidModeModeInfo **x_video_modes;             // Array of all available modes
#	Line 153 | Line 181 | static pthread_mutex_t x_palette_lock =
181		#define UNLOCK_PALETTE
182		#endif
183
184	+	// Mutex to protect frame buffer
185	+	#ifdef HAVE_SPINLOCKS
186	+	static spinlock_t frame_buffer_lock = SPIN_LOCK_UNLOCKED;
187	+	#define LOCK_FRAME_BUFFER spin_lock(&frame_buffer_lock)
188	+	#define UNLOCK_FRAME_BUFFER spin_unlock(&frame_buffer_lock)
189	+	#elif defined(HAVE_PTHREADS)
190	+	static pthread_mutex_t frame_buffer_lock = PTHREAD_MUTEX_INITIALIZER;
191	+	#define LOCK_FRAME_BUFFER pthread_mutex_lock(&frame_buffer_lock);
192	+	#define UNLOCK_FRAME_BUFFER pthread_mutex_unlock(&frame_buffer_lock);
193	+	#else
194	+	#define LOCK_FRAME_BUFFER
195	+	#define UNLOCK_FRAME_BUFFER
196	+	#endif
197	+
198
199		// Prototypes
200		static void *redraw_func(void *arg);
#	Line 364 | Line 406 | static bool find_visual_for_depth(int de
406		*  Open display (window or fullscreen)
407		*/
408
409	+	// Set window name and class
410	+	static void set_window_name(Window w, int name)
411	+	{
412	+	const char *str = GetString(name);
413	+	XStoreName(x_display, w, str);
414	+	XSetIconName(x_display, w, str);
415	+
416	+	XClassHint *hints;
417	+	hints = XAllocClassHint();
418	+	if (hints) {
419	+	hints->res_name = "SheepShaver";
420	+	hints->res_class = "SheepShaver";
421	+	XSetClassHint(x_display, w, hints);
422	+	XFree(hints);
423	+	}
424	+	}
425	+
426	+	// Set window input focus flag
427	+	static void set_window_focus(Window w)
428	+	{
429	+	XWMHints *hints = XAllocWMHints();
430	+	if (hints) {
431	+	hints->input = True;
432	+	hints->initial_state = NormalState;
433	+	hints->flags = InputHint | StateHint;
434	+	XSetWMHints(x_display, w, hints);
435	+	XFree(hints);
436	+	}
437	+	}
438	+
439		// Set WM_DELETE_WINDOW protocol on window (preventing it from being destroyed by the WM when clicking on the "close" widget)
440		static Atom WM_DELETE_WINDOW = (Atom)0;
441		static void set_window_delete_protocol(Window w)
#	Line 389 | Line 461 | static void wait_unmapped(Window w)
461		} while ((e.type != UnmapNotify) || (e.xmap.event != w));
462		}
463
464	+	// Disable mouse acceleration
465	+	static void disable_mouse_accel(void)
466	+	{
467	+	XChangePointerControl(x_display, True, False, 1, 1, 0);
468	+	}
469	+
470	+	// Restore mouse acceleration to original value
471	+	static void restore_mouse_accel(void)
472	+	{
473	+	XChangePointerControl(x_display, True, True, orig_accel_numer, orig_accel_denom, orig_threshold);
474	+	}
475	+
476		// Trap SHM errors
477		static bool shm_error = false;
478		static int (*old_error_handler)(Display *, XErrorEvent *);
#	Line 421 | Line 505 | static bool open_window(int width, int h
505		the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
506		InputOutput, vis, CWEventMask | CWBackPixel | CWBorderPixel | CWBackingStore | CWColormap, &wattr);
507
508	<	// Set window name
509	<	XStoreName(x_display, the_win, GetString(STR_WINDOW_TITLE));
508	>	// Set window name/class
509	>	set_window_name(the_win, STR_WINDOW_TITLE);
510	>
511	>	// Indicate that we want keyboard input
512	>	set_window_focus(the_win);
513
514		// Set delete protocol property
515		set_window_delete_protocol(the_win);
#	Line 550 | Line 637 | static bool open_window(int width, int h
637		return true;
638		}
639
640	<	// Open DGA display (!! should use X11 VidMode extensions to set mode)
641	<	static bool open_dga(int width, int height)
640	>	// Open FBDev DGA display
641	>	static bool open_fbdev_dga(int width, int height)
642		{
643	+	#ifdef ENABLE_FBDEV_DGA
644	+	#ifdef ENABLE_XF86_VIDMODE
645	+	// Switch to best mode
646	+	if (has_vidmode) {
647	+	int best = -1;
648	+	for (int i = 0; i < num_x_video_modes; i++) {
649	+	if (x_video_modes[i]->hdisplay == width && x_video_modes[i]->vdisplay == height) {
650	+	best = i;
651	+	break;
652	+	}
653	+	};
654	+	assert(best != -1);
655	+	XF86VidModeSwitchToMode(x_display, screen, x_video_modes[best]);
656	+	XF86VidModeSetViewPort(x_display, screen, 0, 0);
657	+	D(bug("[fbdev] VideoMode %d: %d x %d @ %d\n", best,
658	+	x_video_modes[best]->hdisplay, x_video_modes[best]->vdisplay,
659	+	1000 * x_video_modes[best]->dotclock / (x_video_modes[best]->htotal * x_video_modes[best]->vtotal)));
660	+	}
661	+	#endif
662	+
663	+	if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo) != 0) {
664	+	D(bug("[fbdev] Can't get FSCREENINFO: %s\n", strerror(errno)));
665	+	return false;
666	+	}
667	+	D(bug("[fbdev] Device ID: %s\n", fb_finfo.id));
668	+	D(bug("[fbdev] smem_start: %p [%d bytes]\n", fb_finfo.smem_start, fb_finfo.smem_len));
669	+
670	+	int fb_type = fb_finfo.type;
671	+	const char *fb_type_str = NULL;
672	+	switch (fb_type) {
673	+	case FB_TYPE_PACKED_PIXELS:                     fb_type_str = "Packed Pixels";                  break;
674	+	case FB_TYPE_PLANES:                            fb_type_str = "Non interleaved planes"; break;
675	+	case FB_TYPE_INTERLEAVED_PLANES:        fb_type_str = "Interleaved planes";             break;
676	+	case FB_TYPE_TEXT:                                      fb_type_str = "Text/attributes";                break;
677	+	case FB_TYPE_VGA_PLANES:                        fb_type_str = "EGA/VGA planes";                 break;
678	+	default:                                                        fb_type_str = "<unknown>";                              break;
679	+	}
680	+	D(bug("[fbdev] type: %s\n", fb_type_str));
681	+
682	+	if (fb_type != FB_TYPE_PACKED_PIXELS) {
683	+	D(bug("[fbdev] type '%s' not supported\n", fb_type_str));
684	+	return false;
685	+	}
686	+
687	+	int fb_visual = fb_finfo.visual;
688	+	const char *fb_visual_str;
689	+	switch (fb_visual) {
690	+	case FB_VISUAL_MONO01:                          fb_visual_str = "Monochrome 1=Black 0=White";   break;
691	+	case FB_VISUAL_MONO10:                          fb_visual_str = "Monochrome 1=While 0=Black";   break;
692	+	case FB_VISUAL_TRUECOLOR:                       fb_visual_str = "True color";                                   break;
693	+	case FB_VISUAL_PSEUDOCOLOR:                     fb_visual_str = "Pseudo color (like atari)";    break;
694	+	case FB_VISUAL_DIRECTCOLOR:                     fb_visual_str = "Direct color";                                 break;
695	+	case FB_VISUAL_STATIC_PSEUDOCOLOR:      fb_visual_str = "Pseudo color readonly";                break;
696	+	default:                                                        fb_visual_str = "<unknown>";                                    break;
697	+	}
698	+	D(bug("[fbdev] visual: %s\n", fb_visual_str));
699	+
700	+	if (fb_visual != FB_VISUAL_TRUECOLOR) {
701	+	D(bug("[fbdev] visual '%s' not supported\n", fb_visual_str));
702	+	return false;
703	+	}
704	+
705	+	// Map frame buffer
706	+	the_buffer = (uint8 *)mmap(NULL, fb_finfo.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fb_dev_fd, 0);
707	+	if (the_buffer == MAP_FAILED) {
708	+	D(bug("[fbdev] Can't mmap /dev/fb0: %s\n", strerror(errno)));
709	+	return false;
710	+	}
711	+
712	+	// Set absolute mouse mode
713	+	ADBSetRelMouseMode(false);
714	+
715	+	// Create window
716	+	XSetWindowAttributes wattr;
717	+	wattr.event_mask = eventmask = dga_eventmask;
718	+	wattr.override_redirect = True;
719	+	the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
720	+	InputOutput, DefaultVisual(x_display, screen),
721	+	CWEventMask | CWOverrideRedirect, &wattr);
722	+
723	+	// Show window
724	+	XMapRaised(x_display, the_win);
725	+	wait_mapped(the_win);
726	+
727	+	// Grab mouse and keyboard
728	+	XGrabKeyboard(x_display, the_win, True,
729	+	GrabModeAsync, GrabModeAsync, CurrentTime);
730	+	XGrabPointer(x_display, the_win, True,
731	+	PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
732	+	GrabModeAsync, GrabModeAsync, the_win, None, CurrentTime);
733	+	disable_mouse_accel();
734	+
735	+	// Create no_cursor
736	+	mac_cursor = XCreatePixmapCursor(x_display,
737	+	XCreatePixmap(x_display, the_win, 1, 1, 1),
738	+	XCreatePixmap(x_display, the_win, 1, 1, 1),
739	+	&black, &white, 0, 0);
740	+	XDefineCursor(x_display, the_win, mac_cursor);
741	+
742	+	// Init blitting routines
743	+	int bytes_per_row = TrivialBytesPerRow((width + 7) & ~7, DepthModeForPixelDepth(depth));
744	+	#if ENABLE_VOSF
745	+	// Extract current screen color masks (we are in True Color mode)
746	+	VisualFormat visualFormat;
747	+	visualFormat.depth = xdepth = DefaultDepth(x_display, screen);
748	+	XMatchVisualInfo(x_display, screen, xdepth, TrueColor, &visualInfo);
749	+	assert(visualFormat.depth == visualInfo.depth);
750	+	visualFormat.Rmask = visualInfo.red_mask;
751	+	visualFormat.Gmask = visualInfo.green_mask;
752	+	visualFormat.Bmask = visualInfo.blue_mask;
753	+	D(bug("[fbdev] %d bpp, (%08x,%08x,%08x)\n",
754	+	visualFormat.depth,
755	+	visualFormat.Rmask, visualFormat.Gmask, visualFormat.Bmask));
756	+	D(bug("[fbdev] Mac depth %d bpp\n", depth));
757	+
758	+	// Screen_blitter_init() returns TRUE if VOSF is mandatory
759	+	// i.e. the framebuffer update function is not Blit_Copy_Raw
760	+	#ifdef WORDS_BIGENDIAN
761	+	const bool native_byte_order = (XImageByteOrder(x_display) == MSBFirst);
762	+	#else
763	+	const bool native_byte_order = (XImageByteOrder(x_display) == LSBFirst);
764	+	#endif
765	+	Screen_blitter_init(visualFormat, native_byte_order, depth);
766	+
767	+	// Allocate memory for frame buffer (SIZE is extended to page-boundary)
768	+	use_vosf = true;
769	+	the_host_buffer = the_buffer;
770	+	the_buffer_size = page_extend((height + 2) * bytes_per_row);
771	+	the_buffer_copy = (uint8 *)malloc(the_buffer_size);
772	+	the_buffer = (uint8 *)vm_acquire(the_buffer_size);
773	+	D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
774	+	#endif
775	+
776	+	// Set frame buffer base
777	+	D(bug("the_buffer = %p, use_vosf = %d\n", the_buffer, use_vosf));
778	+	screen_base = Host2MacAddr(the_buffer);
779	+	VModes[cur_mode].viRowBytes = bytes_per_row;
780	+	return true;
781	+	#else
782	+	ErrorAlert("SheepShaver has been compiled with DGA support disabled.");
783	+	return false;
784	+	#endif
785	+	}
786	+
787	+	// Open XF86 DGA display (!! should use X11 VidMode extensions to set mode)
788	+	static bool open_xf86_dga(int width, int height)
789	+	{
790	+	if (is_fbdev_dga_mode)
791	+	return false;
792	+
793		#ifdef ENABLE_XF86_DGA
794		// Set relative mouse mode
795		ADBSetRelMouseMode(true);
#	Line 642 | Line 879 | static bool open_dga(int width, int heig
879		#endif
880		}
881
882	+	// Open DGA display
883	+	static bool open_dga(int width, int height)
884	+	{
885	+	bool display_open;
886	+
887	+	display_open = open_xf86_dga(width, height);
888	+	#ifdef ENABLE_FBDEV_DGA
889	+	// Try to fallback to FBDev DGA mode
890	+	if (!display_open) {
891	+	is_fbdev_dga_mode = true;
892	+	display_open = open_fbdev_dga(width, height);
893	+	}
894	+	#endif
895	+
896	+	// Common DGA display initialization
897	+	if (display_open) {
898	+
899	+	// Fake image to get display bounds in the refresh function
900	+	if ((img = (XImage *)malloc(sizeof(*img))) == NULL)
901	+	return false;
902	+	img->width = DisplayWidth(x_display, screen);
903	+	img->height = DisplayHeight(x_display, screen);
904	+	img->depth = is_fbdev_dga_mode ? xdepth : depth;
905	+	img->bytes_per_line = TrivialBytesPerRow(img->width, DepthModeForPixelDepth(img->depth));
906	+	}
907	+
908	+	return display_open;
909	+	}
910	+
911		static bool open_display(void)
912		{
913		D(bug("open_display()\n"));
914		const VideoInfo &mode = VModes[cur_mode];
915
916	+	// Get original mouse acceleration
917	+	XGetPointerControl(x_display, &orig_accel_numer, &orig_accel_denom, &orig_threshold);
918	+
919		// Find best available X visual
920		if (!find_visual_for_depth(mode.viAppleMode)) {
921		ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
#	Line 654 | Line 923 | static bool open_display(void)
923		}
924
925		// Build up visualFormat structure
926	+	visualFormat.fullscreen = (display_type == DIS_SCREEN);
927		visualFormat.depth = visualInfo.depth;
928		visualFormat.Rmask = visualInfo.red_mask;
929		visualFormat.Gmask = visualInfo.green_mask;
#	Line 726 | Line 996 | static bool open_display(void)
996		display_type = mode.viType;
997		depth = depth_of_video_mode(mode.viAppleMode);
998
999	<	bool display_open = false;
1000	<	if (display_type == DIS_SCREEN)
999	>	bool display_open;
1000	>	switch (display_type) {
1001	>	case DIS_SCREEN:
1002		display_open = open_dga(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
1003	<	else if (display_type == DIS_WINDOW)
1003	>	break;
1004	>	case DIS_WINDOW:
1005		display_open = open_window(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
1006	+	break;
1007	+	default:
1008	+	display_open = false;
1009	+	break;
1010	+	}
1011
1012		#ifdef ENABLE_VOSF
1013		if (use_vosf) {
1014		// Initialize the VOSF system
1015	+	LOCK_VOSF;
1016		if (!video_vosf_init()) {
1017		ErrorAlert(GetString(STR_VOSF_INIT_ERR));
1018	+	UNLOCK_VOSF;
1019		return false;
1020		}
1021	+	UNLOCK_VOSF;
1022		}
1023		#endif
1024	<
1024	>
1025	>	// Zero screen buffers, viRowBytes is initialized at this stage
1026	>	memset(the_buffer, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1027	>	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1028		return display_open;
1029		}
1030
#	Line 777 | Line 1060 | static void close_window(void)
1060		XSync(x_display, false);
1061		}
1062
1063	<	// Close DGA mode
1064	<	static void close_dga(void)
1063	>	// Close FBDev mode
1064	>	static void close_fbdev_dga(void)
1065	>	{
1066	>	#ifdef ENABLE_FBDEV_DGA
1067	>	uint8 *fb_base;
1068	>	if (!use_vosf)
1069	>	fb_base = the_buffer;
1070	>	#ifdef ENABLE_VOSF
1071	>	else
1072	>	fb_base = the_host_buffer;
1073	>	#endif
1074	>	munmap(fb_base, fb_finfo.smem_len);
1075	>	#endif
1076	>	}
1077	>
1078	>	// Close XF86 DGA mode
1079	>	static void close_xf86_dga(void)
1080		{
1081		#ifdef ENABLE_XF86_DGA
1082		XF86DGADirectVideo(x_display, screen, 0);
1083	+	#endif
1084	+	}
1085	+
1086	+	// Close DGA mode
1087	+	static void close_dga(void)
1088	+	{
1089	+	if (is_fbdev_dga_mode)
1090	+	close_fbdev_dga();
1091	+	else
1092	+	close_xf86_dga();
1093	+
1094		XUngrabPointer(x_display, CurrentTime);
1095		XUngrabKeyboard(x_display, CurrentTime);
787	–	#endif
1096
1097		#ifdef ENABLE_XF86_VIDMODE
1098		if (has_vidmode)
1099		XF86VidModeSwitchToMode(x_display, screen, x_video_modes[0]);
1100		#endif
1101
1102	+	// Release fake image (it's not a normal XImage!)
1103	+	free(img);
1104	+	img = NULL;
1105	+
1106		if (!use_vosf) {
1107		// don't free() the screen buffer in driver_base dtor
1108		the_buffer = NULL;
#	Line 861 | Line 1173 | static void close_display(void)
1173		}
1174		}
1175		#endif
1176	+
1177	+	// Restore mouse acceleration
1178	+	restore_mouse_accel();
1179		}
1180
1181
#	Line 970 | Line 1285 | static int find_mode(int apple_mode, int
1285		return -1;
1286		}
1287
1288	+	// Add custom video mode
1289	+	static void add_custom_mode(VideoInfo *&p, int type, uint32 x, uint32 y, int apple_mode, int apple_id)
1290	+	{
1291	+	p->viType = type;
1292	+	p->viXsize = x;
1293	+	p->viYsize = y;
1294	+	p->viRowBytes = TrivialBytesPerRow(p->viXsize, apple_mode);
1295	+	p->viAppleMode = apple_mode;
1296	+	p->viAppleID = apple_id;
1297	+	p++;
1298	+	}
1299	+
1300		// Add mode to list of supported modes
1301		static void add_mode(VideoInfo *&p, uint32 allow, uint32 test, int apple_mode, int apple_id, int type)
1302		{
1303		if (allow & test) {
1304	<	p->viType = type;
1304	>	uint32 x = 0, y = 0;
1305		switch (apple_id) {
1306		case APPLE_W_640x480:
1307		case APPLE_640x480:
1308	<	p->viXsize = 640;
1309	<	p->viYsize = 480;
1308	>	x = 640;
1309	>	y = 480;
1310		break;
1311		case APPLE_W_800x600:
1312		case APPLE_800x600:
1313	<	p->viXsize = 800;
1314	<	p->viYsize = 600;
1313	>	x = 800;
1314	>	y = 600;
1315		break;
1316		case APPLE_1024x768:
1317	<	p->viXsize = 1024;
1318	<	p->viYsize = 768;
1317	>	x = 1024;
1318	>	y = 768;
1319		break;
1320		case APPLE_1152x768:
1321	<	p->viXsize = 1152;
1322	<	p->viYsize = 768;
1321	>	x = 1152;
1322	>	y = 768;
1323		break;
1324		case APPLE_1152x900:
1325	<	p->viXsize = 1152;
1326	<	p->viYsize = 900;
1325	>	x = 1152;
1326	>	y = 900;
1327		break;
1328		case APPLE_1280x1024:
1329	<	p->viXsize = 1280;
1330	<	p->viYsize = 1024;
1329	>	x = 1280;
1330	>	y = 1024;
1331		break;
1332		case APPLE_1600x1200:
1333	<	p->viXsize = 1600;
1334	<	p->viYsize = 1200;
1333	>	x = 1600;
1334	>	y = 1200;
1335		break;
1336		}
1337	<	p->viRowBytes = TrivialBytesPerRow(p->viXsize, apple_mode);
1011	<	p->viAppleMode = apple_mode;
1012	<	p->viAppleID = apple_id;
1013	<	p++;
1337	>	add_custom_mode(p, type, x, y, apple_mode, apple_id);
1338		}
1339		}
1340
#	Line 1024 | Line 1348 | static void add_window_modes(VideoInfo *
1348		static bool has_mode(int x, int y)
1349		{
1350		#ifdef ENABLE_XF86_VIDMODE
1351	<	for (int i=0; i<num_x_video_modes; i++)
1352	<	if (x_video_modes[i]->hdisplay >= x && x_video_modes[i]->vdisplay >= y)
1353	<	return true;
1354	<	return false;
1355	<	#else
1356	<	return DisplayWidth(x_display, screen) >= x && DisplayHeight(x_display, screen) >= y;
1351	>	if (has_vidmode) {
1352	>	for (int i=0; i<num_x_video_modes; i++)
1353	>	if (x_video_modes[i]->hdisplay == x && x_video_modes[i]->vdisplay == y)
1354	>	return true;
1355	>	return false;
1356	>	}
1357		#endif
1358	+	return DisplayWidth(x_display, screen) >= x && DisplayHeight(x_display, screen) >= y;
1359		}
1360
1361		bool VideoInit(void)
#	Line 1079 | Line 1404 | bool VideoInit(void)
1404		#ifdef ENABLE_XF86_DGA
1405		// DGA available?
1406		int event_base, error_base;
1407	+	is_fbdev_dga_mode = false;
1408		if (local_X11 && XF86DGAQueryExtension(x_display, &event_base, &error_base)) {
1409		int dga_flags = 0;
1410		XF86DGAQueryDirectVideo(x_display, screen, &dga_flags);
1411		has_dga = dga_flags & XF86DGADirectPresent;
1412	+	#if defined(__linux__)
1413	+	// Check r/w permission on /dev/mem for DGA mode to work
1414	+	if (has_dga && access("/dev/mem", R_OK | W_OK) != 0)
1415	+	has_dga = false;
1416	+	#endif
1417		} else
1418		has_dga = false;
1419		#endif
#	Line 1091 | Line 1422 | bool VideoInit(void)
1422		// VidMode available?
1423		int vm_event_base, vm_error_base;
1424		has_vidmode = XF86VidModeQueryExtension(x_display, &vm_event_base, &vm_error_base);
1425	<	if (has_vidmode)
1425	>	if (has_vidmode) {
1426	>	int vm_major_version, vm_minor_version;
1427	>	XF86VidModeQueryVersion(x_display, &vm_major_version, &vm_minor_version);
1428	>	D(bug("VidMode extension %d.%d available\n", vm_major_version, vm_minor_version));
1429		XF86VidModeGetAllModeLines(x_display, screen, &num_x_video_modes, &x_video_modes);
1430	+	}
1431	+	#endif
1432	+
1433	+	#ifdef ENABLE_FBDEV_DGA
1434	+	// FBDev available?
1435	+	bool has_fbdev_dga = false;
1436	+	if (local_X11) {
1437	+	if ((fb_dev_fd = open("/dev/fb0", O_RDWR)) > 0) {
1438	+	if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo) != 0)
1439	+	close(fb_dev_fd);
1440	+	else {
1441	+	has_fbdev_dga = true;
1442	+	if (!has_dga) {
1443	+	// Fallback to FBDev DGA mode if XF86 DGA is not possible
1444	+	has_dga = true;
1445	+	is_fbdev_dga_mode = true;
1446	+	}
1447	+	fb_orig_vinfo = fb_vinfo;
1448	+	D(bug("Frame buffer device initial resolution: %dx%dx%d\n", fb_vinfo.xres, fb_vinfo.yres, fb_vinfo.bits_per_pixel));
1449	+	}
1450	+	}
1451	+	}
1452		#endif
1453
1454		// Find black and white colors
#	Line 1120 | Line 1476 | bool VideoInit(void)
1476		break;
1477		}
1478
1479	+	// Get screen mode from preferences
1480	+	const char *mode_str = PrefsFindString("screen");
1481	+	int default_width = 640, default_height = 480;
1482	+	if (mode_str) {
1483	+	display_type = DIS_INVALID;
1484	+	if (sscanf(mode_str, "win/%d/%d", &default_width, &default_height) == 2)
1485	+	display_type = DIS_WINDOW;
1486	+	#ifdef ENABLE_XF86_DGA
1487	+	else if (has_dga && sscanf(mode_str, "dga/%d/%d", &default_width, &default_height) == 2)
1488	+	display_type = DIS_SCREEN;
1489	+	#endif
1490	+	#ifdef ENABLE_FBDEV_DGA
1491	+	else if (has_fbdev_dga && sscanf(mode_str, "fbdev/%d/%d", &default_width, &default_height) == 2) {
1492	+	is_fbdev_dga_mode = true;
1493	+	display_type = DIS_SCREEN;
1494	+	}
1495	+	#endif
1496	+	if (display_type == DIS_INVALID) {
1497	+	D(bug("Invalid screen mode specified, defaulting to old modes selection\n"));
1498	+	mode_str = NULL;
1499	+	}
1500	+	else {
1501	+	if (default_width <= 0)
1502	+	default_width = DisplayWidth(x_display, screen);
1503	+	else if (default_width > DisplayWidth(x_display, screen))
1504	+	default_width = DisplayWidth(x_display, screen);
1505	+	if (default_height <= 0)
1506	+	default_height = DisplayHeight(x_display, screen);
1507	+	else if (default_height > DisplayHeight(x_display, screen))
1508	+	default_height = DisplayHeight(x_display, screen);
1509	+	}
1510	+	}
1511	+
1512		// Construct video mode table
1513		uint32 window_modes = PrefsFindInt32("windowmodes");
1514		uint32 screen_modes = PrefsFindInt32("screenmodes");
1515		if (!has_dga)
1516		screen_modes = 0;
1517	<	if (window_modes == 0 && screen_modes == 0)
1517	>	if (mode_str)
1518	>	window_modes = screen_modes = 0;
1519	>	else if (window_modes == 0 && screen_modes == 0)
1520		window_modes |= 3;      // Allow at least 640x480 and 800x600 window modes
1521
1522		VideoInfo *p = VModes;
1523	<	for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++)
1524	<	if (find_visual_for_depth(d))
1525	<	add_window_modes(p, window_modes, d);
1523	>	if (mode_str) {
1524	>	if (display_type == DIS_WINDOW) {
1525	>	for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++) {
1526	>	if (find_visual_for_depth(d)) {
1527	>	if (default_width > 640 && default_height > 480)
1528	>	add_mode(p, 3, 1, d, APPLE_W_640x480, DIS_WINDOW);
1529	>	if (default_width > 800 && default_height > 600)
1530	>	add_mode(p, 3, 2, d, APPLE_W_800x600, DIS_WINDOW);
1531	>	add_custom_mode(p, display_type, default_width, default_height, d, APPLE_CUSTOM);
1532	>	}
1533	>	}
1534	>	#ifdef ENABLE_VOSF
1535	>	} else if (display_type == DIS_SCREEN && is_fbdev_dga_mode) {
1536	>	for (unsigned int d = APPLE_1_BIT; d <= default_mode; d++)
1537	>	if (find_visual_for_depth(d))
1538	>	add_custom_mode(p, display_type, default_width, default_height, d, APPLE_CUSTOM);
1539	>	#endif
1540	>	} else
1541	>	add_custom_mode(p, display_type, default_width, default_height, default_mode, APPLE_CUSTOM);
1542
1543	<	if (has_vidmode) {
1543	>	// Add extra VidMode capable modes
1544	>	if (display_type == DIS_SCREEN) {
1545	>	struct {
1546	>	int w;
1547	>	int h;
1548	>	int apple_id;
1549	>	}
1550	>	video_modes[] = {
1551	>	{  640,  480, APPLE_640x480   },
1552	>	{  800,  600, APPLE_800x600   },
1553	>	{ 1024,  768, APPLE_1024x768  },
1554	>	{ 1152,  768, APPLE_1152x768  },
1555	>	{ 1152,  900, APPLE_1152x900  },
1556	>	{ 1280, 1024, APPLE_1280x1024 },
1557	>	{ 1600, 1200, APPLE_1600x1200 },
1558	>	{ 0, }
1559	>	};
1560	>
1561	>	for (int i = 0; video_modes[i].w != 0; i++) {
1562	>	const int w = video_modes[i].w;
1563	>	const int h = video_modes[i].h;
1564	>	if (w >= default_width || h >= default_height)
1565	>	continue;
1566	>	if (has_mode(w, h)) {
1567	>	#ifdef ENABLE_VOSF
1568	>	if (is_fbdev_dga_mode) {
1569	>	for (unsigned int d = APPLE_1_BIT; d <= default_mode; d++)
1570	>	if (find_visual_for_depth(d))
1571	>	add_custom_mode(p, display_type, w, h, d, video_modes[i].apple_id);
1572	>	} else
1573	>	#endif
1574	>	add_custom_mode(p, display_type, w, h, default_mode, video_modes[i].apple_id);
1575	>	}
1576	>	}
1577	>	}
1578	>	} else if (window_modes) {
1579	>	for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++)
1580	>	if (find_visual_for_depth(d))
1581	>	add_window_modes(p, window_modes, d);
1582	>	} else if (has_vidmode) {
1583		if (has_mode(640, 480))
1584		add_mode(p, screen_modes, 1, default_mode, APPLE_640x480, DIS_SCREEN);
1585		if (has_mode(800, 600))
#	Line 1174 | Line 1620 | bool VideoInit(void)
1620		int apple_id = find_apple_resolution(screen_width, screen_height);
1621		if (apple_id != -1)
1622		cur_mode = find_mode(default_mode, apple_id, DIS_SCREEN);
1623	<	}
1623	>	} else if (has_dga && mode_str)
1624	>	cur_mode = find_mode(default_mode, APPLE_CUSTOM, DIS_SCREEN);
1625	>
1626		if (cur_mode == -1) {
1627		// pick up first windowed mode available
1628		for (VideoInfo *p = VModes; p->viType != DIS_INVALID; p++) {
#	Line 1203 | Line 1651 | bool VideoInit(void)
1651		XSetErrorHandler(ignore_errors);
1652		#endif
1653
1654	+	// Lock down frame buffer
1655	+	XSync(x_display, false);
1656	+	LOCK_FRAME_BUFFER;
1657	+
1658		// Start periodic thread
1659		XSync(x_display, false);
1660		Set_pthread_attr(&redraw_thread_attr, 0);
#	Line 1227 | Line 1679 | void VideoExit(void)
1679		redraw_thread_active = false;
1680		}
1681
1682	+	// Unlock frame buffer
1683	+	UNLOCK_FRAME_BUFFER;
1684	+	XSync(x_display, false);
1685	+	D(bug(" frame buffer unlocked\n"));
1686	+
1687		#ifdef ENABLE_VOSF
1688		if (use_vosf) {
1689		// Deinitialize VOSF
#	Line 1241 | Line 1698 | void VideoExit(void)
1698		XFlush(x_display);
1699		XSync(x_display, false);
1700		}
1701	+
1702	+	#ifdef ENABLE_FBDEV_DGA
1703	+	// Close framebuffer device
1704	+	if (fb_dev_fd >= 0) {
1705	+	close(fb_dev_fd);
1706	+	fb_dev_fd = -1;
1707	+	}
1708	+	#endif
1709		}
1710
1711
#	Line 1248 | Line 1713 | void VideoExit(void)
1713		*  Suspend/resume emulator
1714		*/
1715
1251	–	extern void PauseEmulator(void);
1252	–	extern void ResumeEmulator(void);
1253	–
1716		static void suspend_emul(void)
1717		{
1718		if (display_type == DIS_SCREEN) {
#	Line 1258 | Line 1720 | static void suspend_emul(void)
1720		ADBKeyUp(0x36);
1721		ctrl_down = false;
1722
1723	<	// Pause MacOS thread
1724	<	PauseEmulator();
1263	<	emul_suspended = true;
1723	>	// Lock frame buffer (this will stop the MacOS thread)
1724	>	LOCK_FRAME_BUFFER;
1725
1726		// Save frame buffer
1727		fb_save = malloc(VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
#	Line 1268 | Line 1729 | static void suspend_emul(void)
1729		Mac2Host_memcpy(fb_save, screen_base, VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
1730
1731		// Close full screen display
1732	+	#if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1733		#ifdef ENABLE_XF86_DGA
1734	<	XF86DGADirectVideo(x_display, screen, 0);
1734	>	if (!is_fbdev_dga_mode)
1735	>	XF86DGADirectVideo(x_display, screen, 0);
1736	>	#endif
1737		XUngrabPointer(x_display, CurrentTime);
1738		XUngrabKeyboard(x_display, CurrentTime);
1739		#endif
1740	+	restore_mouse_accel();
1741	+	XUnmapWindow(x_display, the_win);
1742	+	wait_unmapped(the_win);
1743		XSync(x_display, false);
1744
1745		// Open "suspend" window
1746		XSetWindowAttributes wattr;
1747		wattr.event_mask = KeyPressMask;
1748	<	wattr.background_pixel = black_pixel;
1282	<	wattr.border_pixel = black_pixel;
1748	>	wattr.background_pixel = (vis == DefaultVisual(x_display, screen) ? black_pixel : 0);
1749		wattr.backing_store = Always;
1750	<	wattr.backing_planes = xdepth;
1751	<	wattr.colormap = DefaultColormap(x_display, screen);
1286	<	XSync(x_display, false);
1750	>	wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
1751	>
1752		suspend_win = XCreateWindow(x_display, rootwin, 0, 0, 512, 1, 0, xdepth,
1753	<	InputOutput, vis, CWEventMask | CWBackPixel | CWBorderPixel |
1754	<	CWBackingStore | CWBackingPlanes | (xdepth == 8 ? CWColormap : 0), &wattr);
1755	<	XSync(x_display, false);
1756	<	XStoreName(x_display, suspend_win, GetString(STR_SUSPEND_WINDOW_TITLE));
1757	<	XMapRaised(x_display, suspend_win);
1293	<	XSync(x_display, false);
1753	>	InputOutput, vis, CWEventMask | CWBackPixel | CWBackingStore | CWColormap, &wattr);
1754	>	set_window_name(suspend_win, STR_SUSPEND_WINDOW_TITLE);
1755	>	set_window_focus(suspend_win);
1756	>	XMapWindow(x_display, suspend_win);
1757	>	emul_suspended = true;
1758		}
1759		}
1760
#	Line 1301 | Line 1765 | static void resume_emul(void)
1765		XSync(x_display, false);
1766
1767		// Reopen full screen display
1768	<	XGrabKeyboard(x_display, rootwin, 1, GrabModeAsync, GrabModeAsync, CurrentTime);
1769	<	XGrabPointer(x_display, rootwin, 1, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
1768	>	XMapRaised(x_display, the_win);
1769	>	wait_mapped(the_win);
1770	>	XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
1771	>	Window w = is_fbdev_dga_mode ? the_win : rootwin;
1772	>	XGrabKeyboard(x_display, w, True, GrabModeAsync, GrabModeAsync, CurrentTime);
1773	>	XGrabPointer(x_display, w, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, is_fbdev_dga_mode ? w : None, None, CurrentTime);
1774	>	disable_mouse_accel();
1775		#ifdef ENABLE_XF86_DGA
1776	<	XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
1777	<	XF86DGASetViewPort(x_display, screen, 0, 0);
1776	>	if (!is_fbdev_dga_mode) {
1777	>	XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
1778	>	XF86DGASetViewPort(x_display, screen, 0, 0);
1779	>	}
1780		#endif
1781		XSync(x_display, false);
1782
#	Line 1316 | Line 1787 | static void resume_emul(void)
1787		if (use_vosf) {
1788		LOCK_VOSF;
1789		PFLAG_SET_ALL;
1319	–	UNLOCK_VOSF;
1790		memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1791	+	UNLOCK_VOSF;
1792		}
1793		#endif
1794
#	Line 1331 | Line 1802 | static void resume_emul(void)
1802		free(fb_save);
1803		fb_save = NULL;
1804		}
1334	–	if (depth == 8)
1335	–	palette_changed = true;
1805
1806	<	// Resume MacOS thread
1806	>	// Unlock frame buffer (and continue MacOS thread)
1807	>	UNLOCK_FRAME_BUFFER;
1808		emul_suspended = false;
1339	–	ResumeEmulator();
1809		}
1810
1811
#	Line 1633 | Line 2102 | static void handle_events(void)
2102		if (use_vosf) {                 // VOSF refresh
2103		LOCK_VOSF;
2104		PFLAG_SET_ALL;
2105	+	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
2106		UNLOCK_VOSF;
2107		}
2108	+	else
2109		#endif
2110	<	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
2110	>	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
2111		break;
2112		}
2113		}
#	Line 1652 | Line 2123 | void VideoVBL(void)
2123		if (emerg_quit)
2124		QuitEmulator();
2125
2126	+	// Temporarily give up frame buffer lock (this is the point where
2127	+	// we are suspended when the user presses Ctrl-Tab)
2128	+	UNLOCK_FRAME_BUFFER;
2129	+	LOCK_FRAME_BUFFER;
2130	+
2131		// Execute video VBL
2132		if (private_data != NULL && private_data->interruptsEnabled)
2133		VSLDoInterruptService(private_data->vslServiceID);
#	Line 1748 | Line 2224 | void video_set_palette(void)
2224		// We have to redraw everything because the interpretation of pixel values changed
2225		LOCK_VOSF;
2226		PFLAG_SET_ALL;
2227	+	if (display_type == DIS_SCREEN)
2228	+	PFLAG_SET_VERY_DIRTY;
2229		UNLOCK_VOSF;
1752	–	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
2230		}
2231		#endif
2232
#	Line 1931 | Line 2408 | static void handle_palette_changes(void)
2408		}
2409
2410		#ifdef ENABLE_XF86_DGA
2411	<	if (display_type == DIS_SCREEN) {
2411	>	if (display_type == DIS_SCREEN && !is_fbdev_dga_mode) {
2412		current_dga_cmap ^= 1;
2413		if (!IsDirectMode(mode) && cmap[current_dga_cmap])
2414		XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
#	Line 1976 | Line 2453 | static void *redraw_func(void *arg)
2453		quit_full_screen = false;
2454		if (display_type == DIS_SCREEN) {
2455		XDisplayLock();
2456	+	#if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
2457		#ifdef ENABLE_XF86_DGA
2458	<	XF86DGADirectVideo(x_display, screen, 0);
2458	>	if (!is_fbdev_dga_mode)
2459	>	XF86DGADirectVideo(x_display, screen, 0);
2460	>	#endif
2461		XUngrabPointer(x_display, CurrentTime);
2462		XUngrabKeyboard(x_display, CurrentTime);
2463		XUnmapWindow(x_display, the_win);

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