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root/cebix/SheepShaver/src/Unix/video_x.cpp
Revision: 1.46
Committed: 2005-06-25T11:39:47Z (19 years, 4 months ago) by gbeauche
Branch: MAIN
Changes since 1.45: +10 -10 lines
Log Message: 
Use fast spinlocks only for small enough atomic operations. Otherwise, you
run into some performance problems in e.g. video graphics experience because
of busywaits in the current spin_lock() implementation.

File Contents

# Content
1 /*
2 * video_x.cpp - Video/graphics emulation, X11 specific stuff
3 *
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
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
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>
33 #include <X11/Xutil.h>
34 #include <X11/keysym.h>
35 #include <X11/extensions/XShm.h>
36 #include <sys/ipc.h>
37 #include <sys/shm.h>
38 #include <errno.h>
39 #include <pthread.h>
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
51
52 #ifdef ENABLE_XF86_VIDMODE
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"
63 #include "user_strings.h"
64 #include "about_window.h"
65 #include "video.h"
66 #include "video_defs.h"
67 #include "video_blit.h"
68
69 #define DEBUG 0
70 #include "debug.h"
71
72 #ifndef NO_STD_NAMESPACE
73 using std::sort;
74 #endif
75
76
77 // Constants
78 const char KEYCODE_FILE_NAME[] = DATADIR "/keycodes";
79 static const bool hw_mac_cursor_accl = true; // Flag: Enable MacOS to X11 copy of cursor?
80
81 // Global variables
82 static int32 frame_skip;
83 static int16 mouse_wheel_mode;
84 static int16 mouse_wheel_lines;
85 static bool redraw_thread_active = false; // Flag: Redraw thread installed
86 static pthread_attr_t redraw_thread_attr; // Redraw thread attributes
87 static volatile bool redraw_thread_cancel; // Flag: Cancel Redraw thread
88 static pthread_t redraw_thread; // Redraw thread
89
90 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
93
94 static bool has_dga = false; // Flag: Video DGA capable
95 static bool has_vidmode = false; // Flag: VidMode extension available
96
97 #ifdef ENABLE_VOSF
98 static bool use_vosf = true; // Flag: VOSF enabled
99 #else
100 static const bool use_vosf = false; // VOSF not possible
101 #endif
102
103 static bool palette_changed = false; // Flag: Palette changed, redraw thread must update palette
104 static bool ctrl_down = false; // Flag: Ctrl key pressed
105 static bool caps_on = false; // Flag: Caps Lock on
106 static bool quit_full_screen = false; // Flag: DGA close requested from redraw thread
107 static volatile bool quit_full_screen_ack = false; // Acknowledge for quit_full_screen
108 static bool emerg_quit = false; // Flag: Ctrl-Esc pressed, emergency quit requested from MacOS thread
109
110 static bool emul_suspended = false; // Flag: emulator suspended
111 static Window suspend_win; // "Suspend" window
112 static void *fb_save = NULL; // Saved frame buffer for suspend
113 static bool use_keycodes = false; // Flag: Use keycodes rather than keysyms
114 static int keycode_table[256]; // X keycode -> Mac keycode translation table
115
116 // X11 variables
117 static int screen; // Screen number
118 static int xdepth; // Depth of X screen
119 static int depth; // Depth of Mac frame buffer
120 static Window rootwin, the_win; // Root window and our window
121 static int num_depths = 0; // Number of available X depths
122 static int *avail_depths = NULL; // List of available X depths
123 static VisualFormat visualFormat;
124 static XVisualInfo visualInfo;
125 static Visual *vis;
126 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;
134 static int eventmask;
135 static const int win_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | ExposureMask | StructureNotifyMask;
136 static const int dga_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask;
137
138 // Variables for window mode
139 static GC the_gc;
140 static XImage *img = NULL;
141 static XShmSegmentInfo shminfo;
142 static XImage *cursor_image, *cursor_mask_image;
143 static Pixmap cursor_map, cursor_mask_map;
144 static Cursor mac_cursor;
145 static GC cursor_gc, cursor_mask_gc;
146 static bool cursor_changed = false; // Flag: Cursor changed, window_func must update cursor
147 static bool have_shm = false; // Flag: SHM present and usable
148 static uint8 *the_buffer = NULL; // Pointer to Mac frame buffer
149 static uint8 *the_buffer_copy = NULL; // Copy of Mac frame buffer
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
167 static int num_x_video_modes;
168 #endif
169
170 // Mutex to protect palette
171 #if defined(HAVE_PTHREADS)
172 static pthread_mutex_t x_palette_lock = PTHREAD_MUTEX_INITIALIZER;
173 #define LOCK_PALETTE pthread_mutex_lock(&x_palette_lock)
174 #define UNLOCK_PALETTE pthread_mutex_unlock(&x_palette_lock)
175 #elif defined(HAVE_SPINLOCKS)
176 static spinlock_t x_palette_lock = SPIN_LOCK_UNLOCKED;
177 #define LOCK_PALETTE spin_lock(&x_palette_lock)
178 #define UNLOCK_PALETTE spin_unlock(&x_palette_lock)
179 #else
180 #define LOCK_PALETTE
181 #define UNLOCK_PALETTE
182 #endif
183
184 // Mutex to protect frame buffer
185 #if defined(HAVE_PTHREADS)
186 static pthread_mutex_t frame_buffer_lock = PTHREAD_MUTEX_INITIALIZER;
187 #define LOCK_FRAME_BUFFER pthread_mutex_lock(&frame_buffer_lock);
188 #define UNLOCK_FRAME_BUFFER pthread_mutex_unlock(&frame_buffer_lock);
189 #elif defined(HAVE_SPINLOCKS)
190 static spinlock_t frame_buffer_lock = SPIN_LOCK_UNLOCKED;
191 #define LOCK_FRAME_BUFFER spin_lock(&frame_buffer_lock)
192 #define UNLOCK_FRAME_BUFFER spin_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);
201
202
203 // From main_unix.cpp
204 extern char *x_display_name;
205 extern Display *x_display;
206
207 // From sys_unix.cpp
208 extern void SysMountFirstFloppy(void);
209
210 // From clip_unix.cpp
211 extern void ClipboardSelectionClear(XSelectionClearEvent *);
212 extern void ClipboardSelectionRequest(XSelectionRequestEvent *);
213
214
215 // Video acceleration through SIGSEGV
216 #ifdef ENABLE_VOSF
217 # include "video_vosf.h"
218 #endif
219
220
221 /*
222 * Utility functions
223 */
224
225 // Get current video mode
226 static inline int get_current_mode(void)
227 {
228 return VModes[cur_mode].viAppleMode;
229 }
230
231 // Find palette size for given color depth
232 static int palette_size(int mode)
233 {
234 switch (mode) {
235 case APPLE_1_BIT: return 2;
236 case APPLE_2_BIT: return 4;
237 case APPLE_4_BIT: return 16;
238 case APPLE_8_BIT: return 256;
239 case APPLE_16_BIT: return 32;
240 case APPLE_32_BIT: return 256;
241 default: return 0;
242 }
243 }
244
245 // Return bits per pixel for requested depth
246 static inline int bytes_per_pixel(int depth)
247 {
248 int bpp;
249 switch (depth) {
250 case 8:
251 bpp = 1;
252 break;
253 case 15: case 16:
254 bpp = 2;
255 break;
256 case 24: case 32:
257 bpp = 4;
258 break;
259 default:
260 abort();
261 }
262 return bpp;
263 }
264
265 // Map video_mode depth ID to numerical depth value
266 static inline int depth_of_video_mode(int mode)
267 {
268 int depth;
269 switch (mode) {
270 case APPLE_1_BIT:
271 depth = 1;
272 break;
273 case APPLE_2_BIT:
274 depth = 2;
275 break;
276 case APPLE_4_BIT:
277 depth = 4;
278 break;
279 case APPLE_8_BIT:
280 depth = 8;
281 break;
282 case APPLE_16_BIT:
283 depth = 16;
284 break;
285 case APPLE_32_BIT:
286 depth = 32;
287 break;
288 default:
289 abort();
290 }
291 return depth;
292 }
293
294 // Map RGB color to pixel value (this only works in TrueColor/DirectColor visuals)
295 static inline uint32 map_rgb(uint8 red, uint8 green, uint8 blue)
296 {
297 return ((red >> rloss) << rshift) | ((green >> gloss) << gshift) | ((blue >> bloss) << bshift);
298 }
299
300
301 // Do we have a visual for handling the specified Mac depth? If so, set the
302 // global variables "xdepth", "visualInfo", "vis" and "color_class".
303 static bool find_visual_for_depth(int depth)
304 {
305 D(bug("have_visual_for_depth(%d)\n", depth_of_video_mode(depth)));
306
307 // 1-bit works always and uses default visual
308 if (depth == APPLE_1_BIT) {
309 vis = DefaultVisual(x_display, screen);
310 visualInfo.visualid = XVisualIDFromVisual(vis);
311 int num = 0;
312 XVisualInfo *vi = XGetVisualInfo(x_display, VisualIDMask, &visualInfo, &num);
313 visualInfo = vi[0];
314 XFree(vi);
315 xdepth = visualInfo.depth;
316 color_class = visualInfo.c_class;
317 D(bug(" found visual ID 0x%02x, depth %d\n", visualInfo.visualid, xdepth));
318 return true;
319 }
320
321 // Calculate minimum and maximum supported X depth
322 int min_depth = 1, max_depth = 32;
323 switch (depth) {
324 #ifdef ENABLE_VOSF
325 case APPLE_2_BIT:
326 case APPLE_4_BIT: // VOSF blitters can convert 2/4/8-bit -> 8/16/32-bit
327 case APPLE_8_BIT:
328 min_depth = 8;
329 max_depth = 32;
330 break;
331 #else
332 case APPLE_2_BIT:
333 case APPLE_4_BIT: // 2/4-bit requires VOSF blitters
334 return false;
335 case APPLE_8_BIT: // 8-bit without VOSF requires an 8-bit visual
336 min_depth = 8;
337 max_depth = 8;
338 break;
339 #endif
340 case APPLE_16_BIT: // 16-bit requires a 15/16-bit visual
341 min_depth = 15;
342 max_depth = 16;
343 break;
344 case APPLE_32_BIT: // 32-bit requires a 24/32-bit visual
345 min_depth = 24;
346 max_depth = 32;
347 break;
348 }
349 D(bug(" minimum required X depth is %d, maximum supported X depth is %d\n", min_depth, max_depth));
350
351 // Try to find a visual for one of the color depths
352 bool visual_found = false;
353 for (int i=0; i<num_depths && !visual_found; i++) {
354
355 xdepth = avail_depths[i];
356 D(bug(" trying to find visual for depth %d\n", xdepth));
357 if (xdepth < min_depth || xdepth > max_depth)
358 continue;
359
360 // Determine best color class for this depth
361 switch (xdepth) {
362 case 1: // Try StaticGray or StaticColor
363 if (XMatchVisualInfo(x_display, screen, xdepth, StaticGray, &visualInfo)
364 || XMatchVisualInfo(x_display, screen, xdepth, StaticColor, &visualInfo))
365 visual_found = true;
366 break;
367 case 8: // Need PseudoColor
368 if (XMatchVisualInfo(x_display, screen, xdepth, PseudoColor, &visualInfo))
369 visual_found = true;
370 break;
371 case 15:
372 case 16:
373 case 24:
374 case 32: // Try DirectColor first, as this will allow gamma correction
375 if (XMatchVisualInfo(x_display, screen, xdepth, DirectColor, &visualInfo)
376 || XMatchVisualInfo(x_display, screen, xdepth, TrueColor, &visualInfo))
377 visual_found = true;
378 break;
379 default:
380 D(bug(" not a supported depth\n"));
381 break;
382 }
383 }
384 if (!visual_found)
385 return false;
386
387 // Visual was found
388 vis = visualInfo.visual;
389 color_class = visualInfo.c_class;
390 D(bug(" found visual ID 0x%02x, depth %d, class ", visualInfo.visualid, xdepth));
391 #if DEBUG
392 switch (color_class) {
393 case StaticGray: D(bug("StaticGray\n")); break;
394 case GrayScale: D(bug("GrayScale\n")); break;
395 case StaticColor: D(bug("StaticColor\n")); break;
396 case PseudoColor: D(bug("PseudoColor\n")); break;
397 case TrueColor: D(bug("TrueColor\n")); break;
398 case DirectColor: D(bug("DirectColor\n")); break;
399 }
400 #endif
401 return true;
402 }
403
404
405 /*
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)
442 {
443 WM_DELETE_WINDOW = XInternAtom(x_display, "WM_DELETE_WINDOW", false);
444 XSetWMProtocols(x_display, w, &WM_DELETE_WINDOW, 1);
445 }
446
447 // Wait until window is mapped/unmapped
448 static void wait_mapped(Window w)
449 {
450 XEvent e;
451 do {
452 XMaskEvent(x_display, StructureNotifyMask, &e);
453 } while ((e.type != MapNotify) || (e.xmap.event != w));
454 }
455
456 static void wait_unmapped(Window w)
457 {
458 XEvent e;
459 do {
460 XMaskEvent(x_display, StructureNotifyMask, &e);
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 *);
479
480 static int error_handler(Display *d, XErrorEvent *e)
481 {
482 if (e->error_code == BadAccess) {
483 shm_error = true;
484 return 0;
485 } else
486 return old_error_handler(d, e);
487 }
488
489 // Open window
490 static bool open_window(int width, int height)
491 {
492 int aligned_width = (width + 15) & ~15;
493 int aligned_height = (height + 15) & ~15;
494
495 // Set absolute mouse mode
496 ADBSetRelMouseMode(false);
497
498 // Create window
499 XSetWindowAttributes wattr;
500 wattr.event_mask = eventmask = win_eventmask;
501 wattr.background_pixel = (vis == DefaultVisual(x_display, screen) ? black_pixel : 0);
502 wattr.border_pixel = 0;
503 wattr.backing_store = NotUseful;
504 wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
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/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);
516
517 // Make window unresizable
518 XSizeHints *hints;
519 if ((hints = XAllocSizeHints()) != NULL) {
520 hints->min_width = width;
521 hints->max_width = width;
522 hints->min_height = height;
523 hints->max_height = height;
524 hints->flags = PMinSize | PMaxSize;
525 XSetWMNormalHints(x_display, the_win, hints);
526 XFree((char *)hints);
527 }
528
529 // Show window
530 XMapWindow(x_display, the_win);
531 wait_mapped(the_win);
532
533 // 1-bit mode is big-endian; if the X server is little-endian, we can't
534 // use SHM because that doesn't allow changing the image byte order
535 bool need_msb_image = (depth == 1 && XImageByteOrder(x_display) == LSBFirst);
536
537 // Try to create and attach SHM image
538 have_shm = false;
539 if (local_X11 && !need_msb_image && XShmQueryExtension(x_display)) {
540
541 // Create SHM image ("height + 2" for safety)
542 img = XShmCreateImage(x_display, vis, depth == 1 ? 1 : xdepth, depth == 1 ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
543 shminfo.shmid = shmget(IPC_PRIVATE, (aligned_height + 2) * img->bytes_per_line, IPC_CREAT | 0777);
544 D(bug(" shm image created\n"));
545 the_buffer_copy = (uint8 *)shmat(shminfo.shmid, 0, 0);
546 shminfo.shmaddr = img->data = (char *)the_buffer_copy;
547 shminfo.readOnly = False;
548
549 // Try to attach SHM image, catching errors
550 shm_error = false;
551 old_error_handler = XSetErrorHandler(error_handler);
552 XShmAttach(x_display, &shminfo);
553 XSync(x_display, false);
554 XSetErrorHandler(old_error_handler);
555 if (shm_error) {
556 shmdt(shminfo.shmaddr);
557 XDestroyImage(img);
558 shminfo.shmid = -1;
559 } else {
560 have_shm = true;
561 shmctl(shminfo.shmid, IPC_RMID, 0);
562 }
563 D(bug(" shm image attached\n"));
564 }
565
566 // Create normal X image if SHM doesn't work ("height + 2" for safety)
567 if (!have_shm) {
568 int bytes_per_row = depth == 1 ? aligned_width/8 : TrivialBytesPerRow(aligned_width, DepthModeForPixelDepth(xdepth));
569 the_buffer_copy = (uint8 *)malloc((aligned_height + 2) * bytes_per_row);
570 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);
571 D(bug(" X image created\n"));
572 }
573
574 // 1-Bit mode is big-endian
575 if (need_msb_image) {
576 img->byte_order = MSBFirst;
577 img->bitmap_bit_order = MSBFirst;
578 }
579
580 #ifdef ENABLE_VOSF
581 use_vosf = true;
582 // Allocate memory for frame buffer (SIZE is extended to page-boundary)
583 the_host_buffer = the_buffer_copy;
584 the_buffer_size = page_extend((aligned_height + 2) * img->bytes_per_line);
585 the_buffer = (uint8 *)vm_acquire(the_buffer_size);
586 the_buffer_copy = (uint8 *)malloc(the_buffer_size);
587 D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
588 #else
589 // Allocate memory for frame buffer
590 the_buffer = (uint8 *)malloc((aligned_height + 2) * img->bytes_per_line);
591 D(bug("the_buffer = %p, the_buffer_copy = %p\n", the_buffer, the_buffer_copy));
592 #endif
593 screen_base = Host2MacAddr(the_buffer);
594
595 // Create GC
596 the_gc = XCreateGC(x_display, the_win, 0, 0);
597 XSetState(x_display, the_gc, black_pixel, white_pixel, GXcopy, AllPlanes);
598
599 // Create cursor
600 if (hw_mac_cursor_accl) {
601 cursor_image = XCreateImage(x_display, vis, 1, XYPixmap, 0, (char *)MacCursor + 4, 16, 16, 16, 2);
602 cursor_image->byte_order = MSBFirst;
603 cursor_image->bitmap_bit_order = MSBFirst;
604 cursor_mask_image = XCreateImage(x_display, vis, 1, XYPixmap, 0, (char *)MacCursor + 36, 16, 16, 16, 2);
605 cursor_mask_image->byte_order = MSBFirst;
606 cursor_mask_image->bitmap_bit_order = MSBFirst;
607 cursor_map = XCreatePixmap(x_display, the_win, 16, 16, 1);
608 cursor_mask_map = XCreatePixmap(x_display, the_win, 16, 16, 1);
609 cursor_gc = XCreateGC(x_display, cursor_map, 0, 0);
610 cursor_mask_gc = XCreateGC(x_display, cursor_mask_map, 0, 0);
611 mac_cursor = XCreatePixmapCursor(x_display, cursor_map, cursor_mask_map, &black, &white, 0, 0);
612 cursor_changed = false;
613 }
614
615 // Create no_cursor
616 else {
617 mac_cursor = XCreatePixmapCursor(x_display,
618 XCreatePixmap(x_display, the_win, 1, 1, 1),
619 XCreatePixmap(x_display, the_win, 1, 1, 1),
620 &black, &white, 0, 0);
621 XDefineCursor(x_display, the_win, mac_cursor);
622 }
623
624 // Init blitting routines
625 bool native_byte_order;
626 #ifdef WORDS_BIGENDIAN
627 native_byte_order = (XImageByteOrder(x_display) == MSBFirst);
628 #else
629 native_byte_order = (XImageByteOrder(x_display) == LSBFirst);
630 #endif
631 #ifdef ENABLE_VOSF
632 Screen_blitter_init(visualFormat, native_byte_order, depth);
633 #endif
634
635 // Set bytes per row
636 XSync(x_display, false);
637 return true;
638 }
639
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 && fb_visual != FB_VISUAL_DIRECTCOLOR) {
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);
796
797 // Create window
798 XSetWindowAttributes wattr;
799 wattr.event_mask = eventmask = dga_eventmask;
800 wattr.override_redirect = True;
801 wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
802 the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
803 InputOutput, vis, CWEventMask | CWOverrideRedirect |
804 (color_class == DirectColor ? CWColormap : 0), &wattr);
805
806 // Show window
807 XMapRaised(x_display, the_win);
808 wait_mapped(the_win);
809
810 #ifdef ENABLE_XF86_VIDMODE
811 // Switch to best mode
812 if (has_vidmode) {
813 int best = 0;
814 for (int i=1; i<num_x_video_modes; i++) {
815 if (x_video_modes[i]->hdisplay >= width && x_video_modes[i]->vdisplay >= height &&
816 x_video_modes[i]->hdisplay <= x_video_modes[best]->hdisplay && x_video_modes[i]->vdisplay <= x_video_modes[best]->vdisplay) {
817 best = i;
818 }
819 }
820 XF86VidModeSwitchToMode(x_display, screen, x_video_modes[best]);
821 XF86VidModeSetViewPort(x_display, screen, 0, 0);
822 }
823 #endif
824
825 // Establish direct screen connection
826 XMoveResizeWindow(x_display, the_win, 0, 0, width, height);
827 XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
828 XGrabKeyboard(x_display, rootwin, True, GrabModeAsync, GrabModeAsync, CurrentTime);
829 XGrabPointer(x_display, rootwin, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
830
831 int v_width, v_bank, v_size;
832 XF86DGAGetVideo(x_display, screen, (char **)&the_buffer, &v_width, &v_bank, &v_size);
833 XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
834 XF86DGASetViewPort(x_display, screen, 0, 0);
835 XF86DGASetVidPage(x_display, screen, 0);
836
837 // Set colormap
838 if (!IsDirectMode(get_current_mode())) {
839 XSetWindowColormap(x_display, the_win, cmap[current_dga_cmap = 0]);
840 XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
841 }
842 XSync(x_display, false);
843
844 // Init blitting routines
845 int bytes_per_row = TrivialBytesPerRow((v_width + 7) & ~7, DepthModeForPixelDepth(depth));
846 #if ENABLE_VOSF
847 bool native_byte_order;
848 #ifdef WORDS_BIGENDIAN
849 native_byte_order = (XImageByteOrder(x_display) == MSBFirst);
850 #else
851 native_byte_order = (XImageByteOrder(x_display) == LSBFirst);
852 #endif
853 #if REAL_ADDRESSING || DIRECT_ADDRESSING
854 // Screen_blitter_init() returns TRUE if VOSF is mandatory
855 // i.e. the framebuffer update function is not Blit_Copy_Raw
856 use_vosf = Screen_blitter_init(visualFormat, native_byte_order, depth);
857
858 if (use_vosf) {
859 // Allocate memory for frame buffer (SIZE is extended to page-boundary)
860 the_host_buffer = the_buffer;
861 the_buffer_size = page_extend((height + 2) * bytes_per_row);
862 the_buffer_copy = (uint8 *)malloc(the_buffer_size);
863 the_buffer = (uint8 *)vm_acquire(the_buffer_size);
864 D(bug("the_buffer = %p, the_buffer_copy = %p, the_host_buffer = %p\n", the_buffer, the_buffer_copy, the_host_buffer));
865 }
866 #else
867 use_vosf = false;
868 #endif
869 #endif
870
871 // Set frame buffer base
872 D(bug("the_buffer = %p, use_vosf = %d\n", the_buffer, use_vosf));
873 screen_base = Host2MacAddr(the_buffer);
874 VModes[cur_mode].viRowBytes = bytes_per_row;
875 return true;
876 #else
877 ErrorAlert("SheepShaver has been compiled with DGA support disabled.");
878 return false;
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));
922 return false;
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;
930 visualFormat.Bmask = visualInfo.blue_mask;
931
932 // Create color maps
933 if (color_class == PseudoColor || color_class == DirectColor) {
934 cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocAll);
935 cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocAll);
936 } else {
937 cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocNone);
938 cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocNone);
939 }
940
941 // Find pixel format of direct modes
942 if (color_class == DirectColor || color_class == TrueColor) {
943 rshift = gshift = bshift = 0;
944 rloss = gloss = bloss = 8;
945 uint32 mask;
946 for (mask=vis->red_mask; !(mask&1); mask>>=1)
947 ++rshift;
948 for (; mask&1; mask>>=1)
949 --rloss;
950 for (mask=vis->green_mask; !(mask&1); mask>>=1)
951 ++gshift;
952 for (; mask&1; mask>>=1)
953 --gloss;
954 for (mask=vis->blue_mask; !(mask&1); mask>>=1)
955 ++bshift;
956 for (; mask&1; mask>>=1)
957 --bloss;
958 }
959
960 // Preset palette pixel values for CLUT or gamma table
961 if (color_class == DirectColor) {
962 int num = vis->map_entries;
963 for (int i=0; i<num; i++) {
964 int c = (i * 256) / num;
965 x_palette[i].pixel = map_rgb(c, c, c);
966 x_palette[i].flags = DoRed | DoGreen | DoBlue;
967 }
968 } else if (color_class == PseudoColor) {
969 for (int i=0; i<256; i++) {
970 x_palette[i].pixel = i;
971 x_palette[i].flags = DoRed | DoGreen | DoBlue;
972 }
973 }
974
975 // Load gray ramp to color map
976 int num = (color_class == DirectColor ? vis->map_entries : 256);
977 for (int i=0; i<num; i++) {
978 int c = (i * 256) / num;
979 x_palette[i].red = c * 0x0101;
980 x_palette[i].green = c * 0x0101;
981 x_palette[i].blue = c * 0x0101;
982 }
983 if (color_class == PseudoColor || color_class == DirectColor) {
984 XStoreColors(x_display, cmap[0], x_palette, num);
985 XStoreColors(x_display, cmap[1], x_palette, num);
986 }
987
988 #ifdef ENABLE_VOSF
989 // Load gray ramp to 8->16/32 expand map
990 if (!IsDirectMode(get_current_mode()) && xdepth > 8)
991 for (int i=0; i<256; i++)
992 ExpandMap[i] = map_rgb(i, i, i);
993 #endif
994
995 // Create display of requested type
996 display_type = mode.viType;
997 depth = depth_of_video_mode(mode.viAppleMode);
998
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 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
1025 // Zero screen buffers, viRowBytes is initialized at this stage
1026 if (display_open) {
1027 memset(the_buffer, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1028 memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1029 }
1030 return display_open;
1031 }
1032
1033
1034 /*
1035 * Close display
1036 */
1037
1038 // Close window
1039 static void close_window(void)
1040 {
1041 if (have_shm) {
1042 XShmDetach(x_display, &shminfo);
1043 #ifdef ENABLE_VOSF
1044 the_host_buffer = NULL; // don't free() in driver_base dtor
1045 #else
1046 the_buffer_copy = NULL; // don't free() in driver_base dtor
1047 #endif
1048 }
1049 if (img) {
1050 if (!have_shm)
1051 img->data = NULL;
1052 XDestroyImage(img);
1053 }
1054 if (have_shm) {
1055 shmdt(shminfo.shmaddr);
1056 shmctl(shminfo.shmid, IPC_RMID, 0);
1057 }
1058 if (the_gc)
1059 XFreeGC(x_display, the_gc);
1060
1061 XFlush(x_display);
1062 XSync(x_display, false);
1063 }
1064
1065 // Close FBDev mode
1066 static void close_fbdev_dga(void)
1067 {
1068 #ifdef ENABLE_FBDEV_DGA
1069 uint8 *fb_base;
1070 if (!use_vosf)
1071 fb_base = the_buffer;
1072 #ifdef ENABLE_VOSF
1073 else
1074 fb_base = the_host_buffer;
1075 #endif
1076 munmap(fb_base, fb_finfo.smem_len);
1077 #endif
1078 }
1079
1080 // Close XF86 DGA mode
1081 static void close_xf86_dga(void)
1082 {
1083 #ifdef ENABLE_XF86_DGA
1084 XF86DGADirectVideo(x_display, screen, 0);
1085 #endif
1086 }
1087
1088 // Close DGA mode
1089 static void close_dga(void)
1090 {
1091 if (is_fbdev_dga_mode)
1092 close_fbdev_dga();
1093 else
1094 close_xf86_dga();
1095
1096 XUngrabPointer(x_display, CurrentTime);
1097 XUngrabKeyboard(x_display, CurrentTime);
1098
1099 #ifdef ENABLE_XF86_VIDMODE
1100 if (has_vidmode)
1101 XF86VidModeSwitchToMode(x_display, screen, x_video_modes[0]);
1102 #endif
1103
1104 // Release fake image (it's not a normal XImage!)
1105 free(img);
1106 img = NULL;
1107
1108 if (!use_vosf) {
1109 // don't free() the screen buffer in driver_base dtor
1110 the_buffer = NULL;
1111 }
1112 #ifdef ENABLE_VOSF
1113 else {
1114 // don't free() the screen buffer in driver_base dtor
1115 the_host_buffer = NULL;
1116 }
1117 #endif
1118 }
1119
1120 static void close_display(void)
1121 {
1122 if (display_type == DIS_SCREEN)
1123 close_dga();
1124 else if (display_type == DIS_WINDOW)
1125 close_window();
1126
1127 // Close window
1128 if (the_win) {
1129 XUnmapWindow(x_display, the_win);
1130 wait_unmapped(the_win);
1131 XDestroyWindow(x_display, the_win);
1132 }
1133
1134 // Free colormaps
1135 if (cmap[0]) {
1136 XFreeColormap(x_display, cmap[0]);
1137 cmap[0] = 0;
1138 }
1139 if (cmap[1]) {
1140 XFreeColormap(x_display, cmap[1]);
1141 cmap[1] = 0;
1142 }
1143
1144 #ifdef ENABLE_VOSF
1145 if (use_vosf) {
1146 // Deinitialize VOSF
1147 video_vosf_exit();
1148 }
1149 #endif
1150
1151 // Free frame buffer(s)
1152 if (!use_vosf) {
1153 if (the_buffer_copy) {
1154 free(the_buffer_copy);
1155 the_buffer_copy = NULL;
1156 }
1157 }
1158 #ifdef ENABLE_VOSF
1159 else {
1160 // the_buffer shall always be mapped through vm_acquire() so that we can vm_protect() it at will
1161 if (the_buffer != VM_MAP_FAILED) {
1162 D(bug(" releasing the_buffer at %p (%d bytes)\n", the_buffer, the_buffer_size));
1163 vm_release(the_buffer, the_buffer_size);
1164 the_buffer = NULL;
1165 }
1166 if (the_host_buffer) {
1167 D(bug(" freeing the_host_buffer at %p\n", the_host_buffer));
1168 free(the_host_buffer);
1169 the_host_buffer = NULL;
1170 }
1171 if (the_buffer_copy) {
1172 D(bug(" freeing the_buffer_copy at %p\n", the_buffer_copy));
1173 free(the_buffer_copy);
1174 the_buffer_copy = NULL;
1175 }
1176 }
1177 #endif
1178
1179 // Restore mouse acceleration
1180 restore_mouse_accel();
1181 }
1182
1183
1184 /*
1185 * Initialization
1186 */
1187
1188 // Init keycode translation table
1189 static void keycode_init(void)
1190 {
1191 bool use_kc = PrefsFindBool("keycodes");
1192 if (use_kc) {
1193
1194 // Get keycode file path from preferences
1195 const char *kc_path = PrefsFindString("keycodefile");
1196
1197 // Open keycode table
1198 FILE *f = fopen(kc_path ? kc_path : KEYCODE_FILE_NAME, "r");
1199 if (f == NULL) {
1200 char str[256];
1201 sprintf(str, GetString(STR_KEYCODE_FILE_WARN), kc_path ? kc_path : KEYCODE_FILE_NAME, strerror(errno));
1202 WarningAlert(str);
1203 return;
1204 }
1205
1206 // Default translation table
1207 for (int i=0; i<256; i++)
1208 keycode_table[i] = -1;
1209
1210 // Search for server vendor string, then read keycodes
1211 const char *vendor = ServerVendor(x_display);
1212 // Force use of MacX mappings on MacOS X with Apple's X server
1213 int dummy;
1214 if (XQueryExtension(x_display, "Apple-DRI", &dummy, &dummy, &dummy))
1215 vendor = "MacX";
1216 bool vendor_found = false;
1217 char line[256];
1218 while (fgets(line, 255, f)) {
1219 // Read line
1220 int len = strlen(line);
1221 if (len == 0)
1222 continue;
1223 line[len-1] = 0;
1224
1225 // Comments begin with "#" or ";"
1226 if (line[0] == '#' || line[0] == ';' || line[0] == 0)
1227 continue;
1228
1229 if (vendor_found) {
1230 // Read keycode
1231 int x_code, mac_code;
1232 if (sscanf(line, "%d %d", &x_code, &mac_code) == 2)
1233 keycode_table[x_code & 0xff] = mac_code;
1234 else
1235 break;
1236 } else {
1237 // Search for vendor string
1238 if (strstr(vendor, line) == vendor)
1239 vendor_found = true;
1240 }
1241 }
1242
1243 // Keycode file completely read
1244 fclose(f);
1245 use_keycodes = vendor_found;
1246
1247 // Vendor not found? Then display warning
1248 if (!vendor_found) {
1249 char str[256];
1250 sprintf(str, GetString(STR_KEYCODE_VENDOR_WARN), vendor, kc_path ? kc_path : KEYCODE_FILE_NAME);
1251 WarningAlert(str);
1252 return;
1253 }
1254 }
1255 }
1256
1257 // Find Apple mode matching best specified dimensions
1258 static int find_apple_resolution(int xsize, int ysize)
1259 {
1260 int apple_id;
1261 if (xsize < 800)
1262 apple_id = APPLE_640x480;
1263 else if (xsize < 1024)
1264 apple_id = APPLE_800x600;
1265 else if (xsize < 1152)
1266 apple_id = APPLE_1024x768;
1267 else if (xsize < 1280) {
1268 if (ysize < 900)
1269 apple_id = APPLE_1152x768;
1270 else
1271 apple_id = APPLE_1152x900;
1272 }
1273 else if (xsize < 1600)
1274 apple_id = APPLE_1280x1024;
1275 else
1276 apple_id = APPLE_1600x1200;
1277 return apple_id;
1278 }
1279
1280 // Find mode in list of supported modes
1281 static int find_mode(int apple_mode, int apple_id, int type)
1282 {
1283 for (VideoInfo *p = VModes; p->viType != DIS_INVALID; p++) {
1284 if (p->viType == type && p->viAppleID == apple_id && p->viAppleMode == apple_mode)
1285 return p - VModes;
1286 }
1287 return -1;
1288 }
1289
1290 // Add custom video mode
1291 static void add_custom_mode(VideoInfo *&p, int type, uint32 x, uint32 y, int apple_mode, int apple_id)
1292 {
1293 p->viType = type;
1294 p->viXsize = x;
1295 p->viYsize = y;
1296 p->viRowBytes = TrivialBytesPerRow(p->viXsize, apple_mode);
1297 p->viAppleMode = apple_mode;
1298 p->viAppleID = apple_id;
1299 p++;
1300 }
1301
1302 // Add mode to list of supported modes
1303 static void add_mode(VideoInfo *&p, uint32 allow, uint32 test, int apple_mode, int apple_id, int type)
1304 {
1305 if (allow & test) {
1306 uint32 x = 0, y = 0;
1307 switch (apple_id) {
1308 case APPLE_W_640x480:
1309 case APPLE_640x480:
1310 x = 640;
1311 y = 480;
1312 break;
1313 case APPLE_W_800x600:
1314 case APPLE_800x600:
1315 x = 800;
1316 y = 600;
1317 break;
1318 case APPLE_1024x768:
1319 x = 1024;
1320 y = 768;
1321 break;
1322 case APPLE_1152x768:
1323 x = 1152;
1324 y = 768;
1325 break;
1326 case APPLE_1152x900:
1327 x = 1152;
1328 y = 900;
1329 break;
1330 case APPLE_1280x1024:
1331 x = 1280;
1332 y = 1024;
1333 break;
1334 case APPLE_1600x1200:
1335 x = 1600;
1336 y = 1200;
1337 break;
1338 }
1339 add_custom_mode(p, type, x, y, apple_mode, apple_id);
1340 }
1341 }
1342
1343 // Add standard list of windowed modes for given color depth
1344 static void add_window_modes(VideoInfo *&p, int window_modes, int mode)
1345 {
1346 add_mode(p, window_modes, 1, mode, APPLE_W_640x480, DIS_WINDOW);
1347 add_mode(p, window_modes, 2, mode, APPLE_W_800x600, DIS_WINDOW);
1348 }
1349
1350 static bool has_mode(int x, int y)
1351 {
1352 #ifdef ENABLE_XF86_VIDMODE
1353 if (has_vidmode) {
1354 for (int i=0; i<num_x_video_modes; i++)
1355 if (x_video_modes[i]->hdisplay == x && x_video_modes[i]->vdisplay == y)
1356 return true;
1357 return false;
1358 }
1359 #endif
1360 return DisplayWidth(x_display, screen) >= x && DisplayHeight(x_display, screen) >= y;
1361 }
1362
1363 bool VideoInit(void)
1364 {
1365 #ifdef ENABLE_VOSF
1366 // Zero the mainBuffer structure
1367 mainBuffer.dirtyPages = NULL;
1368 mainBuffer.pageInfo = NULL;
1369 #endif
1370
1371 // Check if X server runs on local machine
1372 local_X11 = (strncmp(XDisplayName(x_display_name), ":", 1) == 0)
1373 || (strncmp(XDisplayName(x_display_name), "unix:", 5) == 0);
1374
1375 // Init keycode translation
1376 keycode_init();
1377
1378 // Read frame skip prefs
1379 frame_skip = PrefsFindInt32("frameskip");
1380 if (frame_skip == 0)
1381 frame_skip = 1;
1382
1383 // Read mouse wheel prefs
1384 mouse_wheel_mode = PrefsFindInt32("mousewheelmode");
1385 mouse_wheel_lines = PrefsFindInt32("mousewheellines");
1386
1387 // Init variables
1388 private_data = NULL;
1389 video_activated = true;
1390
1391 // Find screen and root window
1392 screen = XDefaultScreen(x_display);
1393 rootwin = XRootWindow(x_display, screen);
1394
1395 // Get sorted list of available depths
1396 avail_depths = XListDepths(x_display, screen, &num_depths);
1397 if (avail_depths == NULL) {
1398 ErrorAlert(GetString(STR_UNSUPP_DEPTH_ERR));
1399 return false;
1400 }
1401 sort(avail_depths, avail_depths + num_depths);
1402
1403 // Get screen depth
1404 xdepth = DefaultDepth(x_display, screen);
1405
1406 #ifdef ENABLE_XF86_DGA
1407 // DGA available?
1408 int event_base, error_base;
1409 is_fbdev_dga_mode = false;
1410 if (local_X11 && XF86DGAQueryExtension(x_display, &event_base, &error_base)) {
1411 int dga_flags = 0;
1412 XF86DGAQueryDirectVideo(x_display, screen, &dga_flags);
1413 has_dga = dga_flags & XF86DGADirectPresent;
1414 #if defined(__linux__)
1415 // Check r/w permission on /dev/mem for DGA mode to work
1416 if (has_dga && access("/dev/mem", R_OK | W_OK) != 0)
1417 has_dga = false;
1418 #endif
1419 } else
1420 has_dga = false;
1421 #endif
1422
1423 #ifdef ENABLE_XF86_VIDMODE
1424 // VidMode available?
1425 int vm_event_base, vm_error_base;
1426 has_vidmode = XF86VidModeQueryExtension(x_display, &vm_event_base, &vm_error_base);
1427 if (has_vidmode) {
1428 int vm_major_version, vm_minor_version;
1429 XF86VidModeQueryVersion(x_display, &vm_major_version, &vm_minor_version);
1430 D(bug("VidMode extension %d.%d available\n", vm_major_version, vm_minor_version));
1431 XF86VidModeGetAllModeLines(x_display, screen, &num_x_video_modes, &x_video_modes);
1432 }
1433 #endif
1434
1435 #ifdef ENABLE_FBDEV_DGA
1436 // FBDev available?
1437 bool has_fbdev_dga = false;
1438 if (local_X11) {
1439 if ((fb_dev_fd = open("/dev/fb0", O_RDWR)) > 0) {
1440 if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo) != 0)
1441 close(fb_dev_fd);
1442 else {
1443 has_fbdev_dga = true;
1444 if (!has_dga) {
1445 // Fallback to FBDev DGA mode if XF86 DGA is not possible
1446 has_dga = true;
1447 is_fbdev_dga_mode = true;
1448 }
1449 fb_orig_vinfo = fb_vinfo;
1450 D(bug("Frame buffer device initial resolution: %dx%dx%d\n", fb_vinfo.xres, fb_vinfo.yres, fb_vinfo.bits_per_pixel));
1451 }
1452 }
1453 }
1454 #endif
1455
1456 // Find black and white colors
1457 XParseColor(x_display, DefaultColormap(x_display, screen), "rgb:00/00/00", &black);
1458 XAllocColor(x_display, DefaultColormap(x_display, screen), &black);
1459 XParseColor(x_display, DefaultColormap(x_display, screen), "rgb:ff/ff/ff", &white);
1460 XAllocColor(x_display, DefaultColormap(x_display, screen), &white);
1461 black_pixel = BlackPixel(x_display, screen);
1462 white_pixel = WhitePixel(x_display, screen);
1463
1464 // Mac screen depth follows X depth (for now)
1465 int default_mode = APPLE_8_BIT;
1466 switch (DefaultDepth(x_display, screen)) {
1467 case 1:
1468 default_mode = APPLE_1_BIT;
1469 break;
1470 case 8:
1471 default_mode = APPLE_8_BIT;
1472 break;
1473 case 15: case 16:
1474 default_mode = APPLE_16_BIT;
1475 break;
1476 case 24: case 32:
1477 default_mode = APPLE_32_BIT;
1478 break;
1479 }
1480
1481 // Get screen mode from preferences
1482 const char *mode_str = PrefsFindString("screen");
1483 int default_width = 640, default_height = 480;
1484 if (mode_str) {
1485 display_type = DIS_INVALID;
1486 if (sscanf(mode_str, "win/%d/%d", &default_width, &default_height) == 2)
1487 display_type = DIS_WINDOW;
1488 #ifdef ENABLE_XF86_DGA
1489 else if (has_dga && sscanf(mode_str, "dga/%d/%d", &default_width, &default_height) == 2)
1490 display_type = DIS_SCREEN;
1491 #endif
1492 #ifdef ENABLE_FBDEV_DGA
1493 else if (has_fbdev_dga && sscanf(mode_str, "fbdev/%d/%d", &default_width, &default_height) == 2) {
1494 is_fbdev_dga_mode = true;
1495 display_type = DIS_SCREEN;
1496 }
1497 #endif
1498 if (display_type == DIS_INVALID) {
1499 D(bug("Invalid screen mode specified, defaulting to old modes selection\n"));
1500 mode_str = NULL;
1501 }
1502 else {
1503 if (default_width <= 0)
1504 default_width = DisplayWidth(x_display, screen);
1505 else if (default_width > DisplayWidth(x_display, screen))
1506 default_width = DisplayWidth(x_display, screen);
1507 if (default_height <= 0)
1508 default_height = DisplayHeight(x_display, screen);
1509 else if (default_height > DisplayHeight(x_display, screen))
1510 default_height = DisplayHeight(x_display, screen);
1511 }
1512 }
1513
1514 // Construct video mode table
1515 uint32 window_modes = PrefsFindInt32("windowmodes");
1516 uint32 screen_modes = PrefsFindInt32("screenmodes");
1517 if (!has_dga)
1518 screen_modes = 0;
1519 if (mode_str)
1520 window_modes = screen_modes = 0;
1521 else if (window_modes == 0 && screen_modes == 0)
1522 window_modes |= 3; // Allow at least 640x480 and 800x600 window modes
1523
1524 VideoInfo *p = VModes;
1525 if (mode_str) {
1526 if (display_type == DIS_WINDOW) {
1527 for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++) {
1528 if (find_visual_for_depth(d)) {
1529 if (default_width > 640 && default_height > 480)
1530 add_mode(p, 3, 1, d, APPLE_W_640x480, DIS_WINDOW);
1531 if (default_width > 800 && default_height > 600)
1532 add_mode(p, 3, 2, d, APPLE_W_800x600, DIS_WINDOW);
1533 add_custom_mode(p, display_type, default_width, default_height, d, APPLE_CUSTOM);
1534 }
1535 }
1536 #ifdef ENABLE_VOSF
1537 } else if (display_type == DIS_SCREEN && is_fbdev_dga_mode) {
1538 for (unsigned int d = APPLE_1_BIT; d <= default_mode; d++)
1539 if (find_visual_for_depth(d))
1540 add_custom_mode(p, display_type, default_width, default_height, d, APPLE_CUSTOM);
1541 #endif
1542 } else
1543 add_custom_mode(p, display_type, default_width, default_height, default_mode, APPLE_CUSTOM);
1544
1545 // Add extra VidMode capable modes
1546 if (display_type == DIS_SCREEN) {
1547 struct {
1548 int w;
1549 int h;
1550 int apple_id;
1551 }
1552 video_modes[] = {
1553 { 640, 480, APPLE_640x480 },
1554 { 800, 600, APPLE_800x600 },
1555 { 1024, 768, APPLE_1024x768 },
1556 { 1152, 768, APPLE_1152x768 },
1557 { 1152, 900, APPLE_1152x900 },
1558 { 1280, 1024, APPLE_1280x1024 },
1559 { 1600, 1200, APPLE_1600x1200 },
1560 { 0, }
1561 };
1562
1563 for (int i = 0; video_modes[i].w != 0; i++) {
1564 const int w = video_modes[i].w;
1565 const int h = video_modes[i].h;
1566 if (w >= default_width || h >= default_height)
1567 continue;
1568 if (has_mode(w, h)) {
1569 #ifdef ENABLE_VOSF
1570 if (is_fbdev_dga_mode) {
1571 for (unsigned int d = APPLE_1_BIT; d <= default_mode; d++)
1572 if (find_visual_for_depth(d))
1573 add_custom_mode(p, display_type, w, h, d, video_modes[i].apple_id);
1574 } else
1575 #endif
1576 add_custom_mode(p, display_type, w, h, default_mode, video_modes[i].apple_id);
1577 }
1578 }
1579 }
1580 } else if (window_modes) {
1581 for (unsigned int d = APPLE_1_BIT; d <= APPLE_32_BIT; d++)
1582 if (find_visual_for_depth(d))
1583 add_window_modes(p, window_modes, d);
1584 } else if (has_vidmode) {
1585 if (has_mode(640, 480))
1586 add_mode(p, screen_modes, 1, default_mode, APPLE_640x480, DIS_SCREEN);
1587 if (has_mode(800, 600))
1588 add_mode(p, screen_modes, 2, default_mode, APPLE_800x600, DIS_SCREEN);
1589 if (has_mode(1024, 768))
1590 add_mode(p, screen_modes, 4, default_mode, APPLE_1024x768, DIS_SCREEN);
1591 if (has_mode(1152, 768))
1592 add_mode(p, screen_modes, 64, default_mode, APPLE_1152x768, DIS_SCREEN);
1593 if (has_mode(1152, 900))
1594 add_mode(p, screen_modes, 8, default_mode, APPLE_1152x900, DIS_SCREEN);
1595 if (has_mode(1280, 1024))
1596 add_mode(p, screen_modes, 16, default_mode, APPLE_1280x1024, DIS_SCREEN);
1597 if (has_mode(1600, 1200))
1598 add_mode(p, screen_modes, 32, default_mode, APPLE_1600x1200, DIS_SCREEN);
1599 } else if (screen_modes) {
1600 int xsize = DisplayWidth(x_display, screen);
1601 int ysize = DisplayHeight(x_display, screen);
1602 int apple_id = find_apple_resolution(xsize, ysize);
1603 p->viType = DIS_SCREEN;
1604 p->viRowBytes = 0;
1605 p->viXsize = xsize;
1606 p->viYsize = ysize;
1607 p->viAppleMode = default_mode;
1608 p->viAppleID = apple_id;
1609 p++;
1610 }
1611 p->viType = DIS_INVALID; // End marker
1612 p->viRowBytes = 0;
1613 p->viXsize = p->viYsize = 0;
1614 p->viAppleMode = 0;
1615 p->viAppleID = 0;
1616
1617 // Find default mode (window 640x480)
1618 cur_mode = -1;
1619 if (has_dga && screen_modes) {
1620 int screen_width = DisplayWidth(x_display, screen);
1621 int screen_height = DisplayHeight(x_display, screen);
1622 int apple_id = find_apple_resolution(screen_width, screen_height);
1623 if (apple_id != -1)
1624 cur_mode = find_mode(default_mode, apple_id, DIS_SCREEN);
1625 } else if (has_dga && mode_str)
1626 cur_mode = find_mode(default_mode, APPLE_CUSTOM, DIS_SCREEN);
1627
1628 if (cur_mode == -1) {
1629 // pick up first windowed mode available
1630 for (VideoInfo *p = VModes; p->viType != DIS_INVALID; p++) {
1631 if (p->viType == DIS_WINDOW && p->viAppleMode == default_mode) {
1632 cur_mode = p - VModes;
1633 break;
1634 }
1635 }
1636 }
1637 assert(cur_mode != -1);
1638
1639 #if DEBUG
1640 D(bug("Available video modes:\n"));
1641 for (p = VModes; p->viType != DIS_INVALID; p++) {
1642 int bits = depth_of_video_mode(p->viAppleMode);
1643 D(bug(" %dx%d (ID %02x), %d colors\n", p->viXsize, p->viYsize, p->viAppleID, 1 << bits));
1644 }
1645 #endif
1646
1647 // Open window/screen
1648 if (!open_display()) {
1649 ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
1650 return false;
1651 }
1652
1653 #if 0
1654 // Ignore errors from now on
1655 XSetErrorHandler(ignore_errors);
1656 #endif
1657
1658 // Lock down frame buffer
1659 XSync(x_display, false);
1660 LOCK_FRAME_BUFFER;
1661
1662 // Start periodic thread
1663 XSync(x_display, false);
1664 Set_pthread_attr(&redraw_thread_attr, 0);
1665 redraw_thread_cancel = false;
1666 redraw_thread_active = (pthread_create(&redraw_thread, &redraw_thread_attr, redraw_func, NULL) == 0);
1667 D(bug("Redraw thread installed (%ld)\n", redraw_thread));
1668 return true;
1669 }
1670
1671
1672 /*
1673 * Deinitialization
1674 */
1675
1676 void VideoExit(void)
1677 {
1678 // Stop redraw thread
1679 if (redraw_thread_active) {
1680 redraw_thread_cancel = true;
1681 pthread_cancel(redraw_thread);
1682 pthread_join(redraw_thread, NULL);
1683 redraw_thread_active = false;
1684 }
1685
1686 // Unlock frame buffer
1687 UNLOCK_FRAME_BUFFER;
1688 XSync(x_display, false);
1689 D(bug(" frame buffer unlocked\n"));
1690
1691 #ifdef ENABLE_VOSF
1692 if (use_vosf) {
1693 // Deinitialize VOSF
1694 video_vosf_exit();
1695 }
1696 #endif
1697
1698 // Close window and server connection
1699 if (x_display != NULL) {
1700 XSync(x_display, false);
1701 close_display();
1702 XFlush(x_display);
1703 XSync(x_display, false);
1704 }
1705
1706 #ifdef ENABLE_FBDEV_DGA
1707 // Close framebuffer device
1708 if (fb_dev_fd >= 0) {
1709 close(fb_dev_fd);
1710 fb_dev_fd = -1;
1711 }
1712 #endif
1713 }
1714
1715
1716 /*
1717 * Suspend/resume emulator
1718 */
1719
1720 static void suspend_emul(void)
1721 {
1722 if (display_type == DIS_SCREEN) {
1723 // Release ctrl key
1724 ADBKeyUp(0x36);
1725 ctrl_down = false;
1726
1727 // Lock frame buffer (this will stop the MacOS thread)
1728 LOCK_FRAME_BUFFER;
1729
1730 // Save frame buffer
1731 fb_save = malloc(VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
1732 if (fb_save)
1733 Mac2Host_memcpy(fb_save, screen_base, VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
1734
1735 // Close full screen display
1736 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1737 #ifdef ENABLE_XF86_DGA
1738 if (!is_fbdev_dga_mode)
1739 XF86DGADirectVideo(x_display, screen, 0);
1740 #endif
1741 XUngrabPointer(x_display, CurrentTime);
1742 XUngrabKeyboard(x_display, CurrentTime);
1743 #endif
1744 restore_mouse_accel();
1745 XUnmapWindow(x_display, the_win);
1746 wait_unmapped(the_win);
1747 XSync(x_display, false);
1748
1749 // Open "suspend" window
1750 XSetWindowAttributes wattr;
1751 wattr.event_mask = KeyPressMask;
1752 wattr.background_pixel = (vis == DefaultVisual(x_display, screen) ? black_pixel : 0);
1753 wattr.backing_store = Always;
1754 wattr.colormap = (depth == 1 ? DefaultColormap(x_display, screen) : cmap[0]);
1755
1756 suspend_win = XCreateWindow(x_display, rootwin, 0, 0, 512, 1, 0, xdepth,
1757 InputOutput, vis, CWEventMask | CWBackPixel | CWBackingStore | CWColormap, &wattr);
1758 set_window_name(suspend_win, STR_SUSPEND_WINDOW_TITLE);
1759 set_window_focus(suspend_win);
1760 XMapWindow(x_display, suspend_win);
1761 emul_suspended = true;
1762 }
1763 }
1764
1765 static void resume_emul(void)
1766 {
1767 // Close "suspend" window
1768 XDestroyWindow(x_display, suspend_win);
1769 XSync(x_display, false);
1770
1771 // Reopen full screen display
1772 XMapRaised(x_display, the_win);
1773 wait_mapped(the_win);
1774 XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
1775 Window w = is_fbdev_dga_mode ? the_win : rootwin;
1776 XGrabKeyboard(x_display, w, True, GrabModeAsync, GrabModeAsync, CurrentTime);
1777 XGrabPointer(x_display, w, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, is_fbdev_dga_mode ? w : None, None, CurrentTime);
1778 disable_mouse_accel();
1779 #ifdef ENABLE_XF86_DGA
1780 if (!is_fbdev_dga_mode) {
1781 XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
1782 XF86DGASetViewPort(x_display, screen, 0, 0);
1783 }
1784 #endif
1785 XSync(x_display, false);
1786
1787 // the_buffer already contains the data to restore. i.e. since a temporary
1788 // frame buffer is used when VOSF is actually used, fb_save is therefore
1789 // not necessary.
1790 #ifdef ENABLE_VOSF
1791 if (use_vosf) {
1792 LOCK_VOSF;
1793 PFLAG_SET_ALL;
1794 memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
1795 UNLOCK_VOSF;
1796 }
1797 #endif
1798
1799 // Restore frame buffer
1800 if (fb_save) {
1801 #ifdef ENABLE_VOSF
1802 // Don't copy fb_save to the temporary frame buffer in VOSF mode
1803 if (!use_vosf)
1804 #endif
1805 Host2Mac_memcpy(screen_base, fb_save, VModes[cur_mode].viYsize * VModes[cur_mode].viRowBytes);
1806 free(fb_save);
1807 fb_save = NULL;
1808 }
1809
1810 // Unlock frame buffer (and continue MacOS thread)
1811 UNLOCK_FRAME_BUFFER;
1812 emul_suspended = false;
1813 }
1814
1815
1816 /*
1817 * Close screen in full-screen mode
1818 */
1819
1820 void VideoQuitFullScreen(void)
1821 {
1822 D(bug("VideoQuitFullScreen()\n"));
1823 if (display_type == DIS_SCREEN) {
1824 quit_full_screen = true;
1825 while (!quit_full_screen_ack) ;
1826 }
1827 }
1828
1829
1830 /*
1831 * X11 event handling
1832 */
1833
1834 // Translate key event to Mac keycode
1835 static int kc_decode(KeySym ks)
1836 {
1837 switch (ks) {
1838 case XK_A: case XK_a: return 0x00;
1839 case XK_B: case XK_b: return 0x0b;
1840 case XK_C: case XK_c: return 0x08;
1841 case XK_D: case XK_d: return 0x02;
1842 case XK_E: case XK_e: return 0x0e;
1843 case XK_F: case XK_f: return 0x03;
1844 case XK_G: case XK_g: return 0x05;
1845 case XK_H: case XK_h: return 0x04;
1846 case XK_I: case XK_i: return 0x22;
1847 case XK_J: case XK_j: return 0x26;
1848 case XK_K: case XK_k: return 0x28;
1849 case XK_L: case XK_l: return 0x25;
1850 case XK_M: case XK_m: return 0x2e;
1851 case XK_N: case XK_n: return 0x2d;
1852 case XK_O: case XK_o: return 0x1f;
1853 case XK_P: case XK_p: return 0x23;
1854 case XK_Q: case XK_q: return 0x0c;
1855 case XK_R: case XK_r: return 0x0f;
1856 case XK_S: case XK_s: return 0x01;
1857 case XK_T: case XK_t: return 0x11;
1858 case XK_U: case XK_u: return 0x20;
1859 case XK_V: case XK_v: return 0x09;
1860 case XK_W: case XK_w: return 0x0d;
1861 case XK_X: case XK_x: return 0x07;
1862 case XK_Y: case XK_y: return 0x10;
1863 case XK_Z: case XK_z: return 0x06;
1864
1865 case XK_1: case XK_exclam: return 0x12;
1866 case XK_2: case XK_at: return 0x13;
1867 case XK_3: case XK_numbersign: return 0x14;
1868 case XK_4: case XK_dollar: return 0x15;
1869 case XK_5: case XK_percent: return 0x17;
1870 case XK_6: return 0x16;
1871 case XK_7: return 0x1a;
1872 case XK_8: return 0x1c;
1873 case XK_9: return 0x19;
1874 case XK_0: return 0x1d;
1875
1876 case XK_grave: case XK_asciitilde: return 0x0a;
1877 case XK_minus: case XK_underscore: return 0x1b;
1878 case XK_equal: case XK_plus: return 0x18;
1879 case XK_bracketleft: case XK_braceleft: return 0x21;
1880 case XK_bracketright: case XK_braceright: return 0x1e;
1881 case XK_backslash: case XK_bar: return 0x2a;
1882 case XK_semicolon: case XK_colon: return 0x29;
1883 case XK_apostrophe: case XK_quotedbl: return 0x27;
1884 case XK_comma: case XK_less: return 0x2b;
1885 case XK_period: case XK_greater: return 0x2f;
1886 case XK_slash: case XK_question: return 0x2c;
1887
1888 case XK_Tab: if (ctrl_down) {suspend_emul(); return -1;} else return 0x30;
1889 case XK_Return: return 0x24;
1890 case XK_space: return 0x31;
1891 case XK_BackSpace: return 0x33;
1892
1893 case XK_Delete: return 0x75;
1894 case XK_Insert: return 0x72;
1895 case XK_Home: case XK_Help: return 0x73;
1896 case XK_End: return 0x77;
1897 #ifdef __hpux
1898 case XK_Prior: return 0x74;
1899 case XK_Next: return 0x79;
1900 #else
1901 case XK_Page_Up: return 0x74;
1902 case XK_Page_Down: return 0x79;
1903 #endif
1904
1905 case XK_Control_L: return 0x36;
1906 case XK_Control_R: return 0x36;
1907 case XK_Shift_L: return 0x38;
1908 case XK_Shift_R: return 0x38;
1909 case XK_Alt_L: return 0x37;
1910 case XK_Alt_R: return 0x37;
1911 case XK_Meta_L: return 0x3a;
1912 case XK_Meta_R: return 0x3a;
1913 case XK_Menu: return 0x32;
1914 case XK_Caps_Lock: return 0x39;
1915 case XK_Num_Lock: return 0x47;
1916
1917 case XK_Up: return 0x3e;
1918 case XK_Down: return 0x3d;
1919 case XK_Left: return 0x3b;
1920 case XK_Right: return 0x3c;
1921
1922 case XK_Escape: if (ctrl_down) {quit_full_screen = true; emerg_quit = true; return -1;} else return 0x35;
1923
1924 case XK_F1: if (ctrl_down) {SysMountFirstFloppy(); return -1;} else return 0x7a;
1925 case XK_F2: return 0x78;
1926 case XK_F3: return 0x63;
1927 case XK_F4: return 0x76;
1928 case XK_F5: return 0x60;
1929 case XK_F6: return 0x61;
1930 case XK_F7: return 0x62;
1931 case XK_F8: return 0x64;
1932 case XK_F9: return 0x65;
1933 case XK_F10: return 0x6d;
1934 case XK_F11: return 0x67;
1935 case XK_F12: return 0x6f;
1936
1937 case XK_Print: return 0x69;
1938 case XK_Scroll_Lock: return 0x6b;
1939 case XK_Pause: return 0x71;
1940
1941 #if defined(XK_KP_Prior) && defined(XK_KP_Left) && defined(XK_KP_Insert) && defined (XK_KP_End)
1942 case XK_KP_0: case XK_KP_Insert: return 0x52;
1943 case XK_KP_1: case XK_KP_End: return 0x53;
1944 case XK_KP_2: case XK_KP_Down: return 0x54;
1945 case XK_KP_3: case XK_KP_Next: return 0x55;
1946 case XK_KP_4: case XK_KP_Left: return 0x56;
1947 case XK_KP_5: case XK_KP_Begin: return 0x57;
1948 case XK_KP_6: case XK_KP_Right: return 0x58;
1949 case XK_KP_7: case XK_KP_Home: return 0x59;
1950 case XK_KP_8: case XK_KP_Up: return 0x5b;
1951 case XK_KP_9: case XK_KP_Prior: return 0x5c;
1952 case XK_KP_Decimal: case XK_KP_Delete: return 0x41;
1953 #else
1954 case XK_KP_0: return 0x52;
1955 case XK_KP_1: return 0x53;
1956 case XK_KP_2: return 0x54;
1957 case XK_KP_3: return 0x55;
1958 case XK_KP_4: return 0x56;
1959 case XK_KP_5: return 0x57;
1960 case XK_KP_6: return 0x58;
1961 case XK_KP_7: return 0x59;
1962 case XK_KP_8: return 0x5b;
1963 case XK_KP_9: return 0x5c;
1964 case XK_KP_Decimal: return 0x41;
1965 #endif
1966 case XK_KP_Add: return 0x45;
1967 case XK_KP_Subtract: return 0x4e;
1968 case XK_KP_Multiply: return 0x43;
1969 case XK_KP_Divide: return 0x4b;
1970 case XK_KP_Enter: return 0x4c;
1971 case XK_KP_Equal: return 0x51;
1972 }
1973 return -1;
1974 }
1975
1976 static int event2keycode(XKeyEvent &ev, bool key_down)
1977 {
1978 KeySym ks;
1979 int i = 0;
1980
1981 do {
1982 ks = XLookupKeysym(&ev, i++);
1983 int as = kc_decode(ks);
1984 if (as >= 0)
1985 return as;
1986 if (as == -2)
1987 return as;
1988 } while (ks != NoSymbol);
1989
1990 return -1;
1991 }
1992
1993 static void handle_events(void)
1994 {
1995 // Handle events
1996 for (;;) {
1997 XEvent event;
1998
1999 XDisplayLock();
2000 if (!XCheckMaskEvent(x_display, eventmask, &event)) {
2001 // Handle clipboard events
2002 if (XCheckTypedEvent(x_display, SelectionRequest, &event))
2003 ClipboardSelectionRequest(&event.xselectionrequest);
2004 else if (XCheckTypedEvent(x_display, SelectionClear, &event))
2005 ClipboardSelectionClear(&event.xselectionclear);
2006
2007 // Window "close" widget clicked
2008 else if (XCheckTypedEvent(x_display, ClientMessage, &event)) {
2009 if (event.xclient.format == 32 && event.xclient.data.l[0] == WM_DELETE_WINDOW) {
2010 ADBKeyDown(0x7f); // Power key
2011 ADBKeyUp(0x7f);
2012 }
2013 }
2014
2015 XDisplayUnlock();
2016 break;
2017 }
2018 XDisplayUnlock();
2019
2020 switch (event.type) {
2021 // Mouse button
2022 case ButtonPress: {
2023 unsigned int button = ((XButtonEvent *)&event)->button;
2024 if (button < 4)
2025 ADBMouseDown(button - 1);
2026 else if (button < 6) { // Wheel mouse
2027 if (mouse_wheel_mode == 0) {
2028 int key = (button == 5) ? 0x79 : 0x74; // Page up/down
2029 ADBKeyDown(key);
2030 ADBKeyUp(key);
2031 } else {
2032 int key = (button == 5) ? 0x3d : 0x3e; // Cursor up/down
2033 for(int i=0; i<mouse_wheel_lines; i++) {
2034 ADBKeyDown(key);
2035 ADBKeyUp(key);
2036 }
2037 }
2038 }
2039 break;
2040 }
2041 case ButtonRelease: {
2042 unsigned int button = ((XButtonEvent *)&event)->button;
2043 if (button < 4)
2044 ADBMouseUp(button - 1);
2045 break;
2046 }
2047
2048 // Mouse entered window
2049 case EnterNotify:
2050 if (event.xcrossing.mode != NotifyGrab && event.xcrossing.mode != NotifyUngrab)
2051 ADBMouseMoved(event.xmotion.x, event.xmotion.y);
2052 break;
2053
2054 // Mouse moved
2055 case MotionNotify:
2056 ADBMouseMoved(event.xmotion.x, event.xmotion.y);
2057 break;
2058
2059 // Keyboard
2060 case KeyPress: {
2061 int code = -1;
2062 if (use_keycodes) {
2063 if (event2keycode(event.xkey, true) != -2) // This is called to process the hotkeys
2064 code = keycode_table[event.xkey.keycode & 0xff];
2065 } else
2066 code = event2keycode(event.xkey, true);
2067 if (code >= 0) {
2068 if (!emul_suspended) {
2069 if (code == 0x39) { // Caps Lock pressed
2070 if (caps_on) {
2071 ADBKeyUp(code);
2072 caps_on = false;
2073 } else {
2074 ADBKeyDown(code);
2075 caps_on = true;
2076 }
2077 } else
2078 ADBKeyDown(code);
2079 if (code == 0x36)
2080 ctrl_down = true;
2081 } else {
2082 if (code == 0x31)
2083 resume_emul(); // Space wakes us up
2084 }
2085 }
2086 break;
2087 }
2088 case KeyRelease: {
2089 int code = -1;
2090 if (use_keycodes) {
2091 if (event2keycode(event.xkey, false) != -2) // This is called to process the hotkeys
2092 code = keycode_table[event.xkey.keycode & 0xff];
2093 } else
2094 code = event2keycode(event.xkey, false);
2095 if (code >= 0 && code != 0x39) { // Don't propagate Caps Lock releases
2096 ADBKeyUp(code);
2097 if (code == 0x36)
2098 ctrl_down = false;
2099 }
2100 break;
2101 }
2102
2103 // Hidden parts exposed, force complete refresh
2104 case Expose:
2105 #ifdef ENABLE_VOSF
2106 if (use_vosf) { // VOSF refresh
2107 LOCK_VOSF;
2108 PFLAG_SET_ALL;
2109 memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
2110 UNLOCK_VOSF;
2111 }
2112 else
2113 #endif
2114 memset(the_buffer_copy, 0, VModes[cur_mode].viRowBytes * VModes[cur_mode].viYsize);
2115 break;
2116 }
2117 }
2118 }
2119
2120
2121 /*
2122 * Execute video VBL routine
2123 */
2124
2125 void VideoVBL(void)
2126 {
2127 if (emerg_quit)
2128 QuitEmulator();
2129
2130 // Temporarily give up frame buffer lock (this is the point where
2131 // we are suspended when the user presses Ctrl-Tab)
2132 UNLOCK_FRAME_BUFFER;
2133 LOCK_FRAME_BUFFER;
2134
2135 // Execute video VBL
2136 if (private_data != NULL && private_data->interruptsEnabled)
2137 VSLDoInterruptService(private_data->vslServiceID);
2138 }
2139
2140
2141 /*
2142 * Change video mode
2143 */
2144
2145 int16 video_mode_change(VidLocals *csSave, uint32 ParamPtr)
2146 {
2147 /* return if no mode change */
2148 if ((csSave->saveData == ReadMacInt32(ParamPtr + csData)) &&
2149 (csSave->saveMode == ReadMacInt16(ParamPtr + csMode))) return noErr;
2150
2151 /* first find video mode in table */
2152 for (int i=0; VModes[i].viType != DIS_INVALID; i++) {
2153 if ((ReadMacInt16(ParamPtr + csMode) == VModes[i].viAppleMode) &&
2154 (ReadMacInt32(ParamPtr + csData) == VModes[i].viAppleID)) {
2155 csSave->saveMode = ReadMacInt16(ParamPtr + csMode);
2156 csSave->saveData = ReadMacInt32(ParamPtr + csData);
2157 csSave->savePage = ReadMacInt16(ParamPtr + csPage);
2158
2159 // Disable interrupts and pause redraw thread
2160 DisableInterrupt();
2161 thread_stop_ack = false;
2162 thread_stop_req = true;
2163 while (!thread_stop_ack) ;
2164
2165 /* close old display */
2166 close_display();
2167
2168 /* open new display */
2169 cur_mode = i;
2170 bool ok = open_display();
2171
2172 /* opening the screen failed? Then bail out */
2173 if (!ok) {
2174 ErrorAlert(GetString(STR_FULL_SCREEN_ERR));
2175 QuitEmulator();
2176 }
2177
2178 WriteMacInt32(ParamPtr + csBaseAddr, screen_base);
2179 csSave->saveBaseAddr=screen_base;
2180 csSave->saveData=VModes[cur_mode].viAppleID;/* First mode ... */
2181 csSave->saveMode=VModes[cur_mode].viAppleMode;
2182
2183 // Enable interrupts and resume redraw thread
2184 thread_stop_req = false;
2185 EnableInterrupt();
2186 return noErr;
2187 }
2188 }
2189 return paramErr;
2190 }
2191
2192
2193 /*
2194 * Set color palette
2195 */
2196
2197 void video_set_palette(void)
2198 {
2199 LOCK_PALETTE;
2200
2201 // Convert colors to XColor array
2202 int mode = get_current_mode();
2203 int num_in = palette_size(mode);
2204 int num_out = 256;
2205 bool stretch = false;
2206 if (IsDirectMode(mode)) {
2207 // If X is in 565 mode we have to stretch the gamma table from 32 to 64 entries
2208 num_out = vis->map_entries;
2209 stretch = true;
2210 }
2211 XColor *p = x_palette;
2212 for (int i=0; i<num_out; i++) {
2213 int c = (stretch ? (i * num_in) / num_out : i);
2214 p->red = mac_pal[c].red * 0x0101;
2215 p->green = mac_pal[c].green * 0x0101;
2216 p->blue = mac_pal[c].blue * 0x0101;
2217 p++;
2218 }
2219
2220 #ifdef ENABLE_VOSF
2221 // Recalculate pixel color expansion map
2222 if (!IsDirectMode(mode) && xdepth > 8) {
2223 for (int i=0; i<256; i++) {
2224 int c = i & (num_in-1); // If there are less than 256 colors, we repeat the first entries (this makes color expansion easier)
2225 ExpandMap[i] = map_rgb(mac_pal[c].red, mac_pal[c].green, mac_pal[c].blue);
2226 }
2227
2228 // We have to redraw everything because the interpretation of pixel values changed
2229 LOCK_VOSF;
2230 PFLAG_SET_ALL;
2231 if (display_type == DIS_SCREEN)
2232 PFLAG_SET_VERY_DIRTY;
2233 UNLOCK_VOSF;
2234 }
2235 #endif
2236
2237 // Tell redraw thread to change palette
2238 palette_changed = true;
2239
2240 UNLOCK_PALETTE;
2241 }
2242
2243
2244 /*
2245 * Can we set the MacOS cursor image into the window?
2246 */
2247
2248 bool video_can_change_cursor(void)
2249 {
2250 return hw_mac_cursor_accl && (display_type != DIS_SCREEN);
2251 }
2252
2253
2254 /*
2255 * Set cursor image for window
2256 */
2257
2258 void video_set_cursor(void)
2259 {
2260 cursor_changed = true;
2261 }
2262
2263
2264 /*
2265 * Thread for window refresh, event handling and other periodic actions
2266 */
2267
2268 static void update_display(void)
2269 {
2270 // Incremental update code
2271 int wide = 0, high = 0, x1, x2, y1, y2, i, j;
2272 int bytes_per_row = VModes[cur_mode].viRowBytes;
2273 int bytes_per_pixel = VModes[cur_mode].viRowBytes / VModes[cur_mode].viXsize;
2274 uint8 *p, *p2;
2275
2276 // Check for first line from top and first line from bottom that have changed
2277 y1 = 0;
2278 for (j=0; j<VModes[cur_mode].viYsize; j++) {
2279 if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
2280 y1 = j;
2281 break;
2282 }
2283 }
2284 y2 = y1 - 1;
2285 for (j=VModes[cur_mode].viYsize-1; j>=y1; j--) {
2286 if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
2287 y2 = j;
2288 break;
2289 }
2290 }
2291 high = y2 - y1 + 1;
2292
2293 // Check for first column from left and first column from right that have changed
2294 if (high) {
2295 if (depth == 1) {
2296 x1 = VModes[cur_mode].viXsize;
2297 for (j=y1; j<=y2; j++) {
2298 p = &the_buffer[j * bytes_per_row];
2299 p2 = &the_buffer_copy[j * bytes_per_row];
2300 for (i=0; i<(x1>>3); i++) {
2301 if (*p != *p2) {
2302 x1 = i << 3;
2303 break;
2304 }
2305 p++;
2306 p2++;
2307 }
2308 }
2309 x2 = x1;
2310 for (j=y1; j<=y2; j++) {
2311 p = &the_buffer[j * bytes_per_row];
2312 p2 = &the_buffer_copy[j * bytes_per_row];
2313 p += bytes_per_row;
2314 p2 += bytes_per_row;
2315 for (i=(VModes[cur_mode].viXsize>>3); i>(x2>>3); i--) {
2316 p--;
2317 p2--;
2318 if (*p != *p2) {
2319 x2 = i << 3;
2320 break;
2321 }
2322 }
2323 }
2324 wide = x2 - x1;
2325
2326 // Update copy of the_buffer
2327 if (high && wide) {
2328 for (j=y1; j<=y2; j++) {
2329 i = j * bytes_per_row + (x1 >> 3);
2330 memcpy(&the_buffer_copy[i], &the_buffer[i], wide >> 3);
2331 }
2332 }
2333
2334 } else {
2335 x1 = VModes[cur_mode].viXsize;
2336 for (j=y1; j<=y2; j++) {
2337 p = &the_buffer[j * bytes_per_row];
2338 p2 = &the_buffer_copy[j * bytes_per_row];
2339 for (i=0; i<x1; i++) {
2340 if (memcmp(p, p2, bytes_per_pixel)) {
2341 x1 = i;
2342 break;
2343 }
2344 p += bytes_per_pixel;
2345 p2 += bytes_per_pixel;
2346 }
2347 }
2348 x2 = x1;
2349 for (j=y1; j<=y2; j++) {
2350 p = &the_buffer[j * bytes_per_row];
2351 p2 = &the_buffer_copy[j * bytes_per_row];
2352 p += bytes_per_row;
2353 p2 += bytes_per_row;
2354 for (i=VModes[cur_mode].viXsize; i>x2; i--) {
2355 p -= bytes_per_pixel;
2356 p2 -= bytes_per_pixel;
2357 if (memcmp(p, p2, bytes_per_pixel)) {
2358 x2 = i;
2359 break;
2360 }
2361 }
2362 }
2363 wide = x2 - x1;
2364
2365 // Update copy of the_buffer
2366 if (high && wide) {
2367 for (j=y1; j<=y2; j++) {
2368 i = j * bytes_per_row + x1 * bytes_per_pixel;
2369 memcpy(&the_buffer_copy[i], &the_buffer[i], bytes_per_pixel * wide);
2370 }
2371 }
2372 }
2373 }
2374
2375 // Refresh display
2376 if (high && wide) {
2377 XDisplayLock();
2378 if (have_shm)
2379 XShmPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high, 0);
2380 else
2381 XPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high);
2382 XDisplayUnlock();
2383 }
2384 }
2385
2386 const int VIDEO_REFRESH_HZ = 60;
2387 const int VIDEO_REFRESH_DELAY = 1000000 / VIDEO_REFRESH_HZ;
2388
2389 static void handle_palette_changes(void)
2390 {
2391 LOCK_PALETTE;
2392
2393 if (palette_changed && !emul_suspended) {
2394 palette_changed = false;
2395
2396 int mode = get_current_mode();
2397 if (color_class == PseudoColor || color_class == DirectColor) {
2398 int num = vis->map_entries;
2399 bool set_clut = true;
2400 if (!IsDirectMode(mode) && color_class == DirectColor) {
2401 if (display_type == DIS_WINDOW)
2402 set_clut = false; // Indexed mode on true color screen, don't set CLUT
2403 }
2404
2405 if (set_clut) {
2406 XDisplayLock();
2407 XStoreColors(x_display, cmap[0], x_palette, num);
2408 XStoreColors(x_display, cmap[1], x_palette, num);
2409 XSync(x_display, false);
2410 XDisplayUnlock();
2411 }
2412 }
2413
2414 #ifdef ENABLE_XF86_DGA
2415 if (display_type == DIS_SCREEN && !is_fbdev_dga_mode) {
2416 current_dga_cmap ^= 1;
2417 if (!IsDirectMode(mode) && cmap[current_dga_cmap])
2418 XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
2419 }
2420 #endif
2421 }
2422
2423 UNLOCK_PALETTE;
2424 }
2425
2426 static void *redraw_func(void *arg)
2427 {
2428 int fd = ConnectionNumber(x_display);
2429
2430 uint64 start = GetTicks_usec();
2431 int64 ticks = 0;
2432 uint64 next = GetTicks_usec() + VIDEO_REFRESH_DELAY;
2433
2434 while (!redraw_thread_cancel) {
2435
2436 // Pause if requested (during video mode switches)
2437 while (thread_stop_req)
2438 thread_stop_ack = true;
2439
2440 int64 delay = next - GetTicks_usec();
2441 if (delay < -VIDEO_REFRESH_DELAY) {
2442
2443 // We are lagging far behind, so we reset the delay mechanism
2444 next = GetTicks_usec();
2445
2446 } else if (delay <= 0) {
2447
2448 // Delay expired, refresh display
2449 next += VIDEO_REFRESH_DELAY;
2450 ticks++;
2451
2452 // Handle X11 events
2453 handle_events();
2454
2455 // Quit DGA mode if requested
2456 if (quit_full_screen) {
2457 quit_full_screen = false;
2458 if (display_type == DIS_SCREEN) {
2459 XDisplayLock();
2460 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
2461 #ifdef ENABLE_XF86_DGA
2462 if (!is_fbdev_dga_mode)
2463 XF86DGADirectVideo(x_display, screen, 0);
2464 #endif
2465 XUngrabPointer(x_display, CurrentTime);
2466 XUngrabKeyboard(x_display, CurrentTime);
2467 XUnmapWindow(x_display, the_win);
2468 wait_unmapped(the_win);
2469 XDestroyWindow(x_display, the_win);
2470 #endif
2471 XSync(x_display, false);
2472 XDisplayUnlock();
2473 quit_full_screen_ack = true;
2474 return NULL;
2475 }
2476 }
2477
2478 // Refresh display and set cursor image in window mode
2479 static int tick_counter = 0;
2480 if (display_type == DIS_WINDOW) {
2481 tick_counter++;
2482 if (tick_counter >= frame_skip) {
2483 tick_counter = 0;
2484
2485 // Update display
2486 #ifdef ENABLE_VOSF
2487 if (use_vosf) {
2488 XDisplayLock();
2489 if (mainBuffer.dirty) {
2490 LOCK_VOSF;
2491 update_display_window_vosf();
2492 UNLOCK_VOSF;
2493 XSync(x_display, false); // Let the server catch up
2494 }
2495 XDisplayUnlock();
2496 }
2497 else
2498 #endif
2499 update_display();
2500
2501 // Set new cursor image if it was changed
2502 if (hw_mac_cursor_accl && cursor_changed) {
2503 cursor_changed = false;
2504 uint8 *x_data = (uint8 *)cursor_image->data;
2505 uint8 *x_mask = (uint8 *)cursor_mask_image->data;
2506 for (int i = 0; i < 32; i++) {
2507 x_mask[i] = MacCursor[4 + i] | MacCursor[36 + i];
2508 x_data[i] = MacCursor[4 + i];
2509 }
2510 XDisplayLock();
2511 XFreeCursor(x_display, mac_cursor);
2512 XPutImage(x_display, cursor_map, cursor_gc, cursor_image, 0, 0, 0, 0, 16, 16);
2513 XPutImage(x_display, cursor_mask_map, cursor_mask_gc, cursor_mask_image, 0, 0, 0, 0, 16, 16);
2514 mac_cursor = XCreatePixmapCursor(x_display, cursor_map, cursor_mask_map, &black, &white, MacCursor[2], MacCursor[3]);
2515 XDefineCursor(x_display, the_win, mac_cursor);
2516 XDisplayUnlock();
2517 }
2518 }
2519 }
2520 #ifdef ENABLE_VOSF
2521 else if (use_vosf) {
2522 // Update display (VOSF variant)
2523 if (++tick_counter >= frame_skip) {
2524 tick_counter = 0;
2525 if (mainBuffer.dirty) {
2526 LOCK_VOSF;
2527 update_display_dga_vosf();
2528 UNLOCK_VOSF;
2529 }
2530 }
2531 }
2532 #endif
2533
2534 // Set new palette if it was changed
2535 handle_palette_changes();
2536
2537 } else {
2538
2539 // No display refresh pending, check for X events
2540 fd_set readfds;
2541 FD_ZERO(&readfds);
2542 FD_SET(fd, &readfds);
2543 struct timeval timeout;
2544 timeout.tv_sec = 0;
2545 timeout.tv_usec = delay;
2546 if (select(fd+1, &readfds, NULL, NULL, &timeout) > 0)
2547 handle_events();
2548 }
2549 }
2550 return NULL;
2551 }