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

Comparing SheepShaver/src/Unix/video_x.cpp (file contents):
Revision 1.10 by gbeauche, 2003-12-31T18:16:55Z vs.
Revision 1.14 by gbeauche, 2004-04-11T10:46:32Z

#	Line 1 | Line 1
1		/*
2		*  video_x.cpp - Video/graphics emulation, X11 specific stuff
3		*
4	<	*  SheepShaver (C) 1997-2003 Marc Hellwig and Christian Bauer
4	>	*  SheepShaver (C) 1997-2004 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 29 | Line 29
29		#include <errno.h>
30		#include <pthread.h>
31
32	+	#include <algorithm>
33	+
34		#ifdef ENABLE_XF86_DGA
35		#include <X11/extensions/xf86dga.h>
36		#endif
#	Line 48 | Line 50
50		#define DEBUG 0
51		#include "debug.h"
52
53	+	#ifndef NO_STD_NAMESPACE
54	+	using std::sort;
55	+	#endif
56	+
57
58		// Constants
59		const char KEYCODE_FILE_NAME[] = DATADIR "/keycodes";
#	Line 89 | Line 95 | static int screen;                                                     // Screen numbe
95		static int xdepth;                                                      // Depth of X screen
96		static int depth;                                                       // Depth of Mac frame buffer
97		static Window rootwin, the_win;                         // Root window and our window
98	+	static int num_depths = 0;                                      // Number of available X depths
99	+	static int *avail_depths = NULL;                        // List of available X depths
100		static XVisualInfo visualInfo;
101		static Visual *vis;
102	+	static int color_class;
103	+	static int rshift, rloss, gshift, gloss, bshift, bloss; // Pixel format of DirectColor/TrueColor modes
104		static Colormap cmap[2];                                        // Two colormaps (DGA) for 8-bit mode
105	+	static XColor x_palette[256];                           // Color palette to be used as CLUT and gamma table
106	+
107		static XColor black, white;
108		static unsigned long black_pixel, white_pixel;
109		static int eventmask;
110	<	static const int win_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | ExposureMask;
111	<	static const int dga_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
110	>	static const int win_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | ExposureMask | StructureNotifyMask;
111	>	static const int dga_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask;
112
113		// Variables for window mode
114		static GC the_gc;
#	Line 123 | Line 135 | static XF86VidModeModeInfo **x_video_mod
135		static int num_x_video_modes;
136		#endif
137
138	+	// Mutex to protect palette
139	+	#ifdef HAVE_SPINLOCKS
140	+	static spinlock_t x_palette_lock = SPIN_LOCK_UNLOCKED;
141	+	#define LOCK_PALETTE spin_lock(&x_palette_lock)
142	+	#define UNLOCK_PALETTE spin_unlock(&x_palette_lock)
143	+	#elif defined(HAVE_PTHREADS)
144	+	static pthread_mutex_t x_palette_lock = PTHREAD_MUTEX_INITIALIZER;
145	+	#define LOCK_PALETTE pthread_mutex_lock(&x_palette_lock)
146	+	#define UNLOCK_PALETTE pthread_mutex_unlock(&x_palette_lock)
147	+	#else
148	+	#define LOCK_PALETTE
149	+	#define UNLOCK_PALETTE
150	+	#endif
151	+
152
153		// Prototypes
154		static void *redraw_func(void *arg);
#	Line 147 | Line 173 | extern void ClipboardSelectionRequest(XS
173
174
175		/*
176	+	*  Utility functions
177	+	*/
178	+
179	+	// Get current video mode
180	+	static inline int get_current_mode(void)
181	+	{
182	+	return VModes[cur_mode].viAppleMode;
183	+	}
184	+
185	+	// Find palette size for given color depth
186	+	static int palette_size(int mode)
187	+	{
188	+	switch (mode) {
189	+	case APPLE_1_BIT: return 2;
190	+	case APPLE_2_BIT: return 4;
191	+	case APPLE_4_BIT: return 16;
192	+	case APPLE_8_BIT: return 256;
193	+	case APPLE_16_BIT: return 32;
194	+	case APPLE_32_BIT: return 256;
195	+	default: return 0;
196	+	}
197	+	}
198	+
199	+	// Map video_mode depth ID to numerical depth value
200	+	static inline int depth_of_video_mode(int mode)
201	+	{
202	+	int depth = -1;
203	+	switch (mode) {
204	+	case APPLE_1_BIT:
205	+	depth = 1;
206	+	break;
207	+	case APPLE_2_BIT:
208	+	depth = 2;
209	+	break;
210	+	case APPLE_4_BIT:
211	+	depth = 4;
212	+	break;
213	+	case APPLE_8_BIT:
214	+	depth = 8;
215	+	break;
216	+	case APPLE_16_BIT:
217	+	depth = 16;
218	+	break;
219	+	case APPLE_32_BIT:
220	+	depth = 32;
221	+	break;
222	+	default:
223	+	abort();
224	+	}
225	+	return depth;
226	+	}
227	+
228	+	// Map RGB color to pixel value (this only works in TrueColor/DirectColor visuals)
229	+	static inline uint32 map_rgb(uint8 red, uint8 green, uint8 blue)
230	+	{
231	+	return ((red >> rloss) << rshift) | ((green >> gloss) << gshift) | ((blue >> bloss) << bshift);
232	+	}
233	+
234	+
235	+	// Do we have a visual for handling the specified Mac depth? If so, set the
236	+	// global variables "xdepth", "visualInfo", "vis" and "color_class".
237	+	static bool find_visual_for_depth(int depth)
238	+	{
239	+	D(bug("have_visual_for_depth(%d)\n", depth_of_video_mode(depth)));
240	+
241	+	// 1-bit works always and uses default visual
242	+	if (depth == APPLE_1_BIT) {
243	+	vis = DefaultVisual(x_display, screen);
244	+	visualInfo.visualid = XVisualIDFromVisual(vis);
245	+	int num = 0;
246	+	XVisualInfo *vi = XGetVisualInfo(x_display, VisualIDMask, &visualInfo, &num);
247	+	visualInfo = vi[0];
248	+	XFree(vi);
249	+	xdepth = visualInfo.depth;
250	+	color_class = visualInfo.c_class;
251	+	D(bug(" found visual ID 0x%02x, depth %d\n", visualInfo.visualid, xdepth));
252	+	return true;
253	+	}
254	+
255	+	// Calculate minimum and maximum supported X depth
256	+	int min_depth = 1, max_depth = 32;
257	+	switch (depth) {
258	+	#ifdef ENABLE_VOSF
259	+	case APPLE_2_BIT:
260	+	case APPLE_4_BIT:       // VOSF blitters can convert 2/4/8-bit -> 8/16/32-bit
261	+	case APPLE_8_BIT:
262	+	min_depth = 8;
263	+	max_depth = 32;
264	+	break;
265	+	#else
266	+	case APPLE_2_BIT:
267	+	case APPLE_4_BIT:       // 2/4-bit requires VOSF blitters
268	+	return false;
269	+	case APPLE_8_BIT:       // 8-bit without VOSF requires an 8-bit visual
270	+	min_depth = 8;
271	+	max_depth = 8;
272	+	break;
273	+	#endif
274	+	case APPLE_16_BIT:      // 16-bit requires a 15/16-bit visual
275	+	min_depth = 15;
276	+	max_depth = 16;
277	+	break;
278	+	case APPLE_32_BIT:      // 32-bit requires a 24/32-bit visual
279	+	min_depth = 24;
280	+	max_depth = 32;
281	+	break;
282	+	}
283	+	D(bug(" minimum required X depth is %d, maximum supported X depth is %d\n", min_depth, max_depth));
284	+
285	+	// Try to find a visual for one of the color depths
286	+	bool visual_found = false;
287	+	for (int i=0; i<num_depths && !visual_found; i++) {
288	+
289	+	xdepth = avail_depths[i];
290	+	D(bug(" trying to find visual for depth %d\n", xdepth));
291	+	if (xdepth < min_depth || xdepth > max_depth)
292	+	continue;
293	+
294	+	// Determine best color class for this depth
295	+	switch (xdepth) {
296	+	case 1: // Try StaticGray or StaticColor
297	+	if (XMatchVisualInfo(x_display, screen, xdepth, StaticGray, &visualInfo)
298	+	|| XMatchVisualInfo(x_display, screen, xdepth, StaticColor, &visualInfo))
299	+	visual_found = true;
300	+	break;
301	+	case 8: // Need PseudoColor
302	+	if (XMatchVisualInfo(x_display, screen, xdepth, PseudoColor, &visualInfo))
303	+	visual_found = true;
304	+	break;
305	+	case 15:
306	+	case 16:
307	+	case 24:
308	+	case 32: // Try DirectColor first, as this will allow gamma correction
309	+	if (XMatchVisualInfo(x_display, screen, xdepth, DirectColor, &visualInfo)
310	+	|| XMatchVisualInfo(x_display, screen, xdepth, TrueColor, &visualInfo))
311	+	visual_found = true;
312	+	break;
313	+	default:
314	+	D(bug("  not a supported depth\n"));
315	+	break;
316	+	}
317	+	}
318	+	if (!visual_found)
319	+	return false;
320	+
321	+	// Visual was found
322	+	vis = visualInfo.visual;
323	+	color_class = visualInfo.c_class;
324	+	D(bug(" found visual ID 0x%02x, depth %d, class ", visualInfo.visualid, xdepth));
325	+	#if DEBUG
326	+	switch (color_class) {
327	+	case StaticGray: D(bug("StaticGray\n")); break;
328	+	case GrayScale: D(bug("GrayScale\n")); break;
329	+	case StaticColor: D(bug("StaticColor\n")); break;
330	+	case PseudoColor: D(bug("PseudoColor\n")); break;
331	+	case TrueColor: D(bug("TrueColor\n")); break;
332	+	case DirectColor: D(bug("DirectColor\n")); break;
333	+	}
334	+	#endif
335	+	return true;
336	+	}
337	+
338	+
339	+	/*
340		*  Open display (window or fullscreen)
341		*/
342
343	+	// Set WM_DELETE_WINDOW protocol on window (preventing it from being destroyed by the WM when clicking on the "close" widget)
344	+	static Atom WM_DELETE_WINDOW = (Atom)0;
345	+	static void set_window_delete_protocol(Window w)
346	+	{
347	+	WM_DELETE_WINDOW = XInternAtom(x_display, "WM_DELETE_WINDOW", false);
348	+	XSetWMProtocols(x_display, w, &WM_DELETE_WINDOW, 1);
349	+	}
350	+
351	+	// Wait until window is mapped/unmapped
352	+	void wait_mapped(Window w)
353	+	{
354	+	XEvent e;
355	+	do {
356	+	XMaskEvent(x_display, StructureNotifyMask, &e);
357	+	} while ((e.type != MapNotify) || (e.xmap.event != w));
358	+	}
359	+
360	+	void wait_unmapped(Window w)
361	+	{
362	+	XEvent e;
363	+	do {
364	+	XMaskEvent(x_display, StructureNotifyMask, &e);
365	+	} while ((e.type != UnmapNotify) || (e.xmap.event != w));
366	+	}
367	+
368		// Trap SHM errors
369		static bool shm_error = false;
370		static int (*old_error_handler)(Display *, XErrorEvent *);
#	Line 175 | Line 390 | static bool open_window(int width, int h
390		// Create window
391		XSetWindowAttributes wattr;
392		wattr.event_mask = eventmask = win_eventmask;
393	<	wattr.background_pixel = black_pixel;
394	<	wattr.border_pixel = black_pixel;
393	>	wattr.background_pixel = (vis == DefaultVisual(x_display, screen) ? black_pixel : 0);
394	>	wattr.border_pixel = 0;
395		wattr.backing_store = NotUseful;
396	<
182	<	XSync(x_display, false);
396	>	wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
397		the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
398	<	InputOutput, vis, CWEventMask | CWBackPixel | CWBorderPixel | CWBackingStore, &wattr);
399	<	XSync(x_display, false);
398	>	InputOutput, vis, CWEventMask | CWBackPixel | CWBorderPixel | CWBackingStore | CWColormap, &wattr);
399	>
400	>	// Set window name
401		XStoreName(x_display, the_win, GetString(STR_WINDOW_TITLE));
187	–	XMapRaised(x_display, the_win);
188	–	XSync(x_display, false);
402
403	<	// Set colormap
404	<	if (depth == 8) {
192	<	XSetWindowColormap(x_display, the_win, cmap[0]);
193	<	XSetWMColormapWindows(x_display, the_win, &the_win, 1);
194	<	}
403	>	// Set delete protocol property
404	>	set_window_delete_protocol(the_win);
405
406		// Make window unresizable
407		XSizeHints *hints;
#	Line 205 | Line 415 | static bool open_window(int width, int h
415		XFree((char *)hints);
416		}
417
418	+	// Show window
419	+	XMapWindow(x_display, the_win);
420	+	wait_mapped(the_win);
421	+
422		// 1-bit mode is big-endian; if the X server is little-endian, we can't
423		// use SHM because that doesn't allow changing the image byte order
424		bool need_msb_image = (depth == 1 && XImageByteOrder(x_display) == LSBFirst);
#	Line 215 | Line 429 | static bool open_window(int width, int h
429
430		// Create SHM image ("height + 2" for safety)
431		img = XShmCreateImage(x_display, vis, depth == 1 ? 1 : xdepth, depth == 1 ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
432	<	shminfo.shmid = shmget(IPC_PRIVATE, (height + 2) * img->bytes_per_line, IPC_CREAT | 0777);
432	>	shminfo.shmid = shmget(IPC_PRIVATE, (aligned_height + 2) * img->bytes_per_line, IPC_CREAT | 0777);
433	>	D(bug(" shm image created\n"));
434		the_buffer_copy = (uint8 *)shmat(shminfo.shmid, 0, 0);
435		shminfo.shmaddr = img->data = (char *)the_buffer_copy;
436		shminfo.readOnly = False;
#	Line 234 | Line 449 | static bool open_window(int width, int h
449		have_shm = true;
450		shmctl(shminfo.shmid, IPC_RMID, 0);
451		}
452	+	D(bug(" shm image attached\n"));
453		}
454
455		// Create normal X image if SHM doesn't work ("height + 2" for safety)
456		if (!have_shm) {
457	<	int bytes_per_row = aligned_width;
242	<	switch (depth) {
243	<	case 1:
244	<	bytes_per_row /= 8;
245	<	break;
246	<	case 15:
247	<	case 16:
248	<	bytes_per_row *= 2;
249	<	break;
250	<	case 24:
251	<	case 32:
252	<	bytes_per_row *= 4;
253	<	break;
254	<	}
457	>	int bytes_per_row = depth == 1 ? aligned_width/8 : TrivialBytesPerRow(aligned_width, DepthModeForPixelDepth(xdepth));
458		the_buffer_copy = (uint8 *)malloc((aligned_height + 2) * bytes_per_row);
459		img = XCreateImage(x_display, vis, depth == 1 ? 1 : xdepth, depth == 1 ? XYBitmap : ZPixmap, 0, (char *)the_buffer_copy, aligned_width, aligned_height, 32, bytes_per_row);
460	+	D(bug(" X image created\n"));
461		}
462
463		// 1-Bit mode is big-endian
464	<	if (depth == 1) {
464	>	if (need_msb_image) {
465		img->byte_order = MSBFirst;
466		img->bitmap_bit_order = MSBFirst;
467		}
#	Line 279 | Line 483 | static bool open_window(int width, int h
483
484		// Create GC
485		the_gc = XCreateGC(x_display, the_win, 0, 0);
486	<	XSetForeground(x_display, the_gc, black_pixel);
486	>	XSetState(x_display, the_gc, black_pixel, white_pixel, GXcopy, AllPlanes);
487
488		// Create cursor
489		cursor_image = XCreateImage(x_display, vis, 1, XYPixmap, 0, (char *)MacCursor + 4, 16, 16, 16, 2);
#	Line 307 | Line 511 | static bool open_window(int width, int h
511		#endif
512
513		// Set bytes per row
310	–	VModes[cur_mode].viRowBytes = img->bytes_per_line;
514		XSync(x_display, false);
515		return true;
516		}
#	Line 346 | Line 549 | static bool open_dga(int width, int heig
549		XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
550
551		// Set bytes per row
552	<	int bytes_per_row = (dga_fb_width + 7) & ~7;
350	<	switch (depth) {
351	<	case 15:
352	<	case 16:
353	<	bytes_per_row *= 2;
354	<	break;
355	<	case 24:
356	<	case 32:
357	<	bytes_per_row *= 4;
358	<	break;
359	<	}
552	>	int bytes_per_row = TrivialBytesPerRow((dga_fb_width + 7) & ~7, DepthModeForPixelDepth(depth));
553
554		#if ENABLE_VOSF
555		bool native_byte_order;
#	Line 395 | Line 588 | static bool open_dga(int width, int heig
588
589		static bool open_display(void)
590		{
591	<	display_type = VModes[cur_mode].viType;
592	<	switch (VModes[cur_mode].viAppleMode) {
593	<	case APPLE_1_BIT:
594	<	depth = 1;
595	<	break;
596	<	case APPLE_2_BIT:
597	<	depth = 2;
598	<	break;
599	<	case APPLE_4_BIT:
600	<	depth = 4;
601	<	break;
602	<	case APPLE_8_BIT:
603	<	depth = 8;
604	<	break;
605	<	case APPLE_16_BIT:
606	<	depth = xdepth == 15 ? 15 : 16;
607	<	break;
608	<	case APPLE_32_BIT:
609	<	depth = 32;
610	<	break;
591	>	D(bug("open_display()\n"));
592	>	const VideoInfo &mode = VModes[cur_mode];
593	>
594	>	// Find best available X visual
595	>	if (!find_visual_for_depth(mode.viAppleMode)) {
596	>	ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
597	>	return false;
598	>	}
599	>
600	>	// Create color maps
601	>	if (color_class == PseudoColor || color_class == DirectColor) {
602	>	cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocAll);
603	>	cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocAll);
604	>	} else {
605	>	cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocNone);
606	>	cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocNone);
607	>	}
608	>
609	>	// Find pixel format of direct modes
610	>	if (color_class == DirectColor || color_class == TrueColor) {
611	>	rshift = gshift = bshift = 0;
612	>	rloss = gloss = bloss = 8;
613	>	uint32 mask;
614	>	for (mask=vis->red_mask; !(mask&1); mask>>=1)
615	>	++rshift;
616	>	for (; mask&1; mask>>=1)
617	>	--rloss;
618	>	for (mask=vis->green_mask; !(mask&1); mask>>=1)
619	>	++gshift;
620	>	for (; mask&1; mask>>=1)
621	>	--gloss;
622	>	for (mask=vis->blue_mask; !(mask&1); mask>>=1)
623	>	++bshift;
624	>	for (; mask&1; mask>>=1)
625	>	--bloss;
626	>	}
627	>
628	>	// Preset palette pixel values for CLUT or gamma table
629	>	if (color_class == DirectColor) {
630	>	int num = vis->map_entries;
631	>	for (int i=0; i<num; i++) {
632	>	int c = (i * 256) / num;
633	>	x_palette[i].pixel = map_rgb(c, c, c);
634	>	x_palette[i].flags = DoRed | DoGreen | DoBlue;
635	>	}
636	>	} else if (color_class == PseudoColor) {
637	>	for (int i=0; i<256; i++) {
638	>	x_palette[i].pixel = i;
639	>	x_palette[i].flags = DoRed | DoGreen | DoBlue;
640	>	}
641	>	}
642	>
643	>	// Load gray ramp to color map
644	>	int num = (color_class == DirectColor ? vis->map_entries : 256);
645	>	for (int i=0; i<num; i++) {
646	>	int c = (i * 256) / num;
647	>	x_palette[i].red = c * 0x0101;
648	>	x_palette[i].green = c * 0x0101;
649	>	x_palette[i].blue = c * 0x0101;
650	>	}
651	>	if (color_class == PseudoColor || color_class == DirectColor) {
652	>	XStoreColors(x_display, cmap[0], x_palette, num);
653	>	XStoreColors(x_display, cmap[1], x_palette, num);
654		}
655
656	+	#ifdef ENABLE_VOSF
657	+	// Load gray ramp to 8->16/32 expand map
658	+	if (!IsDirectMode(get_current_mode()) && xdepth > 8)
659	+	for (int i=0; i<256; i++)
660	+	ExpandMap[i] = map_rgb(i, i, i);
661	+	#endif
662	+
663	+	// Create display of requested type
664	+	display_type = mode.viType;
665	+	depth = depth_of_video_mode(mode.viAppleMode);
666	+
667		bool display_open = false;
668		if (display_type == DIS_SCREEN)
669		display_open = open_dga(VModes[cur_mode].viXsize, VModes[cur_mode].viYsize);
#	Line 465 | Line 712 | static void close_window(void)
712		XFreeGC(x_display, the_gc);
713
714		// Close window
715	<	XDestroyWindow(x_display, the_win);
715	>	if (the_win) {
716	>	XUnmapWindow(x_display, the_win);
717	>	wait_unmapped(the_win);
718	>	XDestroyWindow(x_display, the_win);
719	>	}
720	>
721	>	XFlush(x_display);
722	>	XSync(x_display, false);
723		}
724
725		// Close DGA mode
#	Line 501 | Line 755 | static void close_display(void)
755		else if (display_type == DIS_WINDOW)
756		close_window();
757
758	+	// Free colormaps
759	+	if (cmap[0]) {
760	+	XFreeColormap(x_display, cmap[0]);
761	+	cmap[0] = 0;
762	+	}
763	+	if (cmap[1]) {
764	+	XFreeColormap(x_display, cmap[1]);
765	+	cmap[1] = 0;
766	+	}
767	+
768		#ifdef ENABLE_VOSF
769		if (use_vosf) {
770		// Deinitialize VOSF
#	Line 607 | Line 871 | static void keycode_init(void)
871		}
872		}
873
874	<	static void add_mode(VideoInfo *&p, uint32 allow, uint32 test, long apple_mode, long apple_id, int type)
874	>	// Add mode to list of supported modes
875	>	static void add_mode(VideoInfo *&p, uint32 allow, uint32 test, int apple_mode, int apple_id, int type)
876		{
877		if (allow & test) {
878		p->viType = type;
#	Line 639 | Line 904 | static void add_mode(VideoInfo *&p, uint
904		p->viYsize = 1200;
905		break;
906		}
907	<	switch (apple_mode) {
643	<	case APPLE_8_BIT:
644	<	p->viRowBytes = p->viXsize;
645	<	break;
646	<	case APPLE_16_BIT:
647	<	p->viRowBytes = p->viXsize * 2;
648	<	break;
649	<	case APPLE_32_BIT:
650	<	p->viRowBytes = p->viXsize * 4;
651	<	break;
652	<	}
907	>	p->viRowBytes = TrivialBytesPerRow(p->viXsize, apple_mode);
908		p->viAppleMode = apple_mode;
909		p->viAppleID = apple_id;
910		p++;
911		}
912		}
913
914	+	// Add standard list of windowed modes for given color depth
915	+	static void add_window_modes(VideoInfo *&p, int window_modes, int mode)
916	+	{
917	+	add_mode(p, window_modes, 1, mode, APPLE_W_640x480, DIS_WINDOW);
918	+	add_mode(p, window_modes, 2, mode, APPLE_W_800x600, DIS_WINDOW);
919	+	}
920	+
921		static bool has_mode(int x, int y)
922		{
923		#ifdef ENABLE_XF86_VIDMODE
#	Line 694 | Line 956 | bool VideoInit(void)
956
957		// Init variables
958		private_data = NULL;
697	–	cur_mode = 0;   // Window 640x480
959		video_activated = true;
960
961		// Find screen and root window
962		screen = XDefaultScreen(x_display);
963		rootwin = XRootWindow(x_display, screen);
964
965	+	// Get sorted list of available depths
966	+	avail_depths = XListDepths(x_display, screen, &num_depths);
967	+	if (avail_depths == NULL) {
968	+	ErrorAlert(GetString(STR_UNSUPP_DEPTH_ERR));
969	+	return false;
970	+	}
971	+	sort(avail_depths, avail_depths + num_depths);
972	+
973		// Get screen depth
974		xdepth = DefaultDepth(x_display, screen);
975
#	Line 731 | Line 1000 | bool VideoInit(void)
1000		black_pixel = BlackPixel(x_display, screen);
1001		white_pixel = WhitePixel(x_display, screen);
1002
734	–	// Get appropriate visual
735	–	int color_class;
736	–	switch (xdepth) {
737	–	#if 0
738	–	case 1:
739	–	color_class = StaticGray;
740	–	break;
741	–	#endif
742	–	case 8:
743	–	color_class = PseudoColor;
744	–	break;
745	–	case 15:
746	–	case 16:
747	–	case 24:
748	–	case 32:
749	–	color_class = TrueColor;
750	–	break;
751	–	default:
752	–	ErrorAlert(GetString(STR_UNSUPP_DEPTH_ERR));
753	–	return false;
754	–	}
755	–	if (!XMatchVisualInfo(x_display, screen, xdepth, color_class, &visualInfo)) {
756	–	ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
757	–	return false;
758	–	}
759	–	if (visualInfo.depth != xdepth) {
760	–	ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
761	–	return false;
762	–	}
763	–	vis = visualInfo.visual;
764	–
1003		// Mac screen depth follows X depth (for now)
1004	<	depth = xdepth;
1005	<
1006	<	// Create color maps for 8 bit mode
1007	<	if (depth == 8) {
1008	<	cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocAll);
1009	<	cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocAll);
1010	<	XInstallColormap(x_display, cmap[0]);
1011	<	XInstallColormap(x_display, cmap[1]);
1004	>	int default_mode = APPLE_8_BIT;
1005	>	switch (DefaultDepth(x_display, screen)) {
1006	>	case 1:
1007	>	default_mode = APPLE_1_BIT;
1008	>	break;
1009	>	case 8:
1010	>	default_mode = APPLE_8_BIT;
1011	>	break;
1012	>	case 15: case 16:
1013	>	default_mode = APPLE_16_BIT;
1014	>	break;
1015	>	case 24: case 32:
1016	>	default_mode = APPLE_32_BIT;
1017	>	break;
1018		}
1019
1020		// Construct video mode table
777	–	int mode = APPLE_8_BIT;
778	–	int bpr_mult = 8;
779	–	switch (depth) {
780	–	case 1:
781	–	mode = APPLE_1_BIT;
782	–	bpr_mult = 1;
783	–	break;
784	–	case 8:
785	–	mode = APPLE_8_BIT;
786	–	bpr_mult = 8;
787	–	break;
788	–	case 15:
789	–	case 16:
790	–	mode = APPLE_16_BIT;
791	–	bpr_mult = 16;
792	–	break;
793	–	case 24:
794	–	case 32:
795	–	mode = APPLE_32_BIT;
796	–	bpr_mult = 32;
797	–	break;
798	–	}
799	–
1021		uint32 window_modes = PrefsFindInt32("windowmodes");
1022		uint32 screen_modes = PrefsFindInt32("screenmodes");
1023		if (!has_dga)
#	Line 805 | Line 1026 | bool VideoInit(void)
1026		window_modes |= 3;      // Allow at least 640x480 and 800x600 window modes
1027
1028		VideoInfo *p = VModes;
1029	<	add_mode(p, window_modes, 1, mode, APPLE_W_640x480, DIS_WINDOW);
1030	<	add_mode(p, window_modes, 2, mode, APPLE_W_800x600, DIS_WINDOW);
1029	>	for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++)
1030	>	if (find_visual_for_depth(d))
1031	>	add_window_modes(p, window_modes, d);
1032	>
1033		if (has_vidmode) {
1034		if (has_mode(640, 480))
1035	<	add_mode(p, screen_modes, 1, mode, APPLE_640x480, DIS_SCREEN);
1035	>	add_mode(p, screen_modes, 1, default_mode, APPLE_640x480, DIS_SCREEN);
1036		if (has_mode(800, 600))
1037	<	add_mode(p, screen_modes, 2, mode, APPLE_800x600, DIS_SCREEN);
1037	>	add_mode(p, screen_modes, 2, default_mode, APPLE_800x600, DIS_SCREEN);
1038		if (has_mode(1024, 768))
1039	<	add_mode(p, screen_modes, 4, mode, APPLE_1024x768, DIS_SCREEN);
1039	>	add_mode(p, screen_modes, 4, default_mode, APPLE_1024x768, DIS_SCREEN);
1040		if (has_mode(1152, 900))
1041	<	add_mode(p, screen_modes, 8, mode, APPLE_1152x900, DIS_SCREEN);
1041	>	add_mode(p, screen_modes, 8, default_mode, APPLE_1152x900, DIS_SCREEN);
1042		if (has_mode(1280, 1024))
1043	<	add_mode(p, screen_modes, 16, mode, APPLE_1280x1024, DIS_SCREEN);
1043	>	add_mode(p, screen_modes, 16, default_mode, APPLE_1280x1024, DIS_SCREEN);
1044		if (has_mode(1600, 1200))
1045	<	add_mode(p, screen_modes, 32, mode, APPLE_1600x1200, DIS_SCREEN);
1045	>	add_mode(p, screen_modes, 32, default_mode, APPLE_1600x1200, DIS_SCREEN);
1046		} else if (screen_modes) {
1047		int xsize = DisplayWidth(x_display, screen);
1048		int ysize = DisplayHeight(x_display, screen);
#	Line 840 | Line 1063 | bool VideoInit(void)
1063		p->viRowBytes = 0;
1064		p->viXsize = xsize;
1065		p->viYsize = ysize;
1066	<	p->viAppleMode = mode;
1066	>	p->viAppleMode = default_mode;
1067		p->viAppleID = apple_id;
1068		p++;
1069		}
#	Line 850 | Line 1073 | bool VideoInit(void)
1073		p->viAppleMode = 0;
1074		p->viAppleID = 0;
1075
1076	+	// Find default mode (window 640x480)
1077	+	cur_mode = -1;
1078	+	for (p = VModes; p->viType != DIS_INVALID; p++) {
1079	+	if (p->viType == DIS_WINDOW
1080	+	&& p->viAppleID == APPLE_W_640x480
1081	+	&& p->viAppleMode == default_mode) {
1082	+	cur_mode = p - VModes;
1083	+	break;
1084	+	}
1085	+	}
1086	+	assert(cur_mode != -1);
1087	+
1088	+	#if DEBUG
1089	+	D(bug("Available video modes:\n"));
1090	+	for (p = VModes; p->viType != DIS_INVALID; p++) {
1091	+	int bits = depth_of_video_mode(p->viAppleMode);
1092	+	D(bug(" %dx%d (ID %02x), %d colors\n", p->viXsize, p->viYsize, p->viAppleID, 1 << bits));
1093	+	}
1094	+	#endif
1095	+
1096		#ifdef ENABLE_XF86_DGA
1097		if (has_dga && screen_modes) {
1098		int v_bank, v_size;
#	Line 901 | Line 1144 | void VideoExit(void)
1144		close_display();
1145		XFlush(x_display);
1146		XSync(x_display, false);
904	–	if (depth == 8) {
905	–	XFreeColormap(x_display, cmap[0]);
906	–	XFreeColormap(x_display, cmap[1]);
907	–	}
1147		}
1148		}
1149
#	Line 968 | Line 1207 | static void resume_emul(void)
1207		// Reopen full screen display
1208		XGrabKeyboard(x_display, rootwin, 1, GrabModeAsync, GrabModeAsync, CurrentTime);
1209		XGrabPointer(x_display, rootwin, 1, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
1210	+	#ifdef ENABLE_XF86_DGA
1211		XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
1212		XF86DGASetViewPort(x_display, screen, 0, 0);
1213	+	#endif
1214		XSync(x_display, false);
1215
1216		// the_buffer already contains the data to restore. i.e. since a temporary
#	Line 1193 | Line 1434 | static void handle_events(void)
1434		else if (XCheckTypedEvent(x_display, SelectionClear, &event))
1435		ClipboardSelectionClear(&event.xselectionclear);
1436
1437	+	// Window "close" widget clicked
1438	+	else if (XCheckTypedEvent(x_display, ClientMessage, &event)) {
1439	+	if (event.xclient.format == 32 && event.xclient.data.l[0] == WM_DELETE_WINDOW) {
1440	+	ADBKeyDown(0x7f);       // Power key
1441	+	ADBKeyUp(0x7f);
1442	+	}
1443	+	}
1444	+
1445		XDisplayUnlock();
1446		break;
1447		}
#	Line 1496 | Line 1745 | int16 video_mode_change(VidLocals *csSav
1745
1746		void video_set_palette(void)
1747		{
1748	+	LOCK_PALETTE;
1749	+
1750	+	// Convert colors to XColor array
1751	+	int mode = get_current_mode();
1752	+	int num_in = palette_size(mode);
1753	+	int num_out = 256;
1754	+	bool stretch = false;
1755	+	if (IsDirectMode(mode)) {
1756	+	// If X is in 565 mode we have to stretch the gamma table from 32 to 64 entries
1757	+	num_out = vis->map_entries;
1758	+	stretch = true;
1759	+	}
1760	+	XColor *p = x_palette;
1761	+	for (int i=0; i<num_out; i++) {
1762	+	int c = (stretch ? (i * num_in) / num_out : i);
1763	+	p->red = mac_pal[c].red * 0x0101;
1764	+	p->green = mac_pal[c].green * 0x0101;
1765	+	p->blue = mac_pal[c].blue * 0x0101;
1766	+	p++;
1767	+	}
1768	+
1769	+	#ifdef ENABLE_VOSF
1770	+	// Recalculate pixel color expansion map
1771	+	if (!IsDirectMode(mode) && xdepth > 8) {
1772	+	for (int i=0; i<256; i++) {
1773	+	int c = i & (num_in-1); // If there are less than 256 colors, we repeat the first entries (this makes color expansion easier)
1774	+	ExpandMap[i] = map_rgb(mac_pal[c].red, mac_pal[c].green, mac_pal[c].blue);
1775	+	}
1776	+
1777	+	// We have to redraw everything because the interpretation of pixel values changed
1778	+	LOCK_VOSF;
1779	+	PFLAG_SET_ALL;
1780	+	UNLOCK_VOSF;
1781	+	memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1782	+	}
1783	+	#endif
1784	+
1785	+	// Tell redraw thread to change palette
1786		palette_changed = true;
1787	+
1788	+	UNLOCK_PALETTE;
1789		}
1790
1791
#	Line 1635 | Line 1924 | static void update_display(void)
1924		const int VIDEO_REFRESH_HZ = 60;
1925		const int VIDEO_REFRESH_DELAY = 1000000 / VIDEO_REFRESH_HZ;
1926
1927	+	static void handle_palette_changes(void)
1928	+	{
1929	+	LOCK_PALETTE;
1930	+
1931	+	if (palette_changed && !emul_suspended) {
1932	+	palette_changed = false;
1933	+
1934	+	int mode = get_current_mode();
1935	+	if (color_class == PseudoColor || color_class == DirectColor) {
1936	+	int num = vis->map_entries;
1937	+	bool set_clut = true;
1938	+	if (!IsDirectMode(mode) && color_class == DirectColor) {
1939	+	if (display_type == DIS_WINDOW)
1940	+	set_clut = false; // Indexed mode on true color screen, don't set CLUT
1941	+	}
1942	+
1943	+	if (set_clut) {
1944	+	XDisplayLock();
1945	+	XStoreColors(x_display, cmap[0], x_palette, num);
1946	+	XStoreColors(x_display, cmap[1], x_palette, num);
1947	+	XSync(x_display, false);
1948	+	XDisplayUnlock();
1949	+	}
1950	+	}
1951	+
1952	+	#ifdef ENABLE_XF86_DGA
1953	+	if (display_type == DIS_SCREEN) {
1954	+	current_dga_cmap ^= 1;
1955	+	if (!IsDirectMode(mode) && cmap[current_dga_cmap])
1956	+	XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
1957	+	}
1958	+	#endif
1959	+	}
1960	+
1961	+	UNLOCK_PALETTE;
1962	+	}
1963	+
1964		static void *redraw_func(void *arg)
1965		{
1966		int fd = ConnectionNumber(x_display);
#	Line 1734 | Line 2060 | static void *redraw_func(void *arg)
2060		#endif
2061
2062		// Set new palette if it was changed
2063	<	if (palette_changed && !emul_suspended) {
1738	<	palette_changed = false;
1739	<	XColor c[256];
1740	<	for (int i=0; i<256; i++) {
1741	<	c[i].pixel = i;
1742	<	c[i].red = mac_pal[i].red * 0x0101;
1743	<	c[i].green = mac_pal[i].green * 0x0101;
1744	<	c[i].blue = mac_pal[i].blue * 0x0101;
1745	<	c[i].flags = DoRed | DoGreen | DoBlue;
1746	<	}
1747	<	if (depth == 8) {
1748	<	XDisplayLock();
1749	<	XStoreColors(x_display, cmap[0], c, 256);
1750	<	XStoreColors(x_display, cmap[1], c, 256);
1751	<	#ifdef ENABLE_XF86_DGA
1752	<	if (display_type == DIS_SCREEN) {
1753	<	current_dga_cmap ^= 1;
1754	<	XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
1755	<	}
1756	<	#endif
1757	<	XDisplayUnlock();
1758	<	}
1759	<	}
2063	>	handle_palette_changes();
2064
2065		} else {
2066

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