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root/cebix/BasiliskII/src/Unix/video_x.cpp
Revision: 1.19
Committed: 2000-09-22T17:16:31Z (24 years, 2 months ago) by gbeauche
Branch: MAIN
Changes since 1.18: +515 -23 lines
Log Message:
- added direct and real addressing modes support
- added Video on SEGV signals support

File Contents

# Content
1 /*
2 * video_x.cpp - Video/graphics emulation, X11 specific stuff
3 *
4 * Basilisk II (C) 1997-2000 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 */
28
29 #include "sysdeps.h"
30
31 #include <X11/Xlib.h>
32 #include <X11/Xutil.h>
33 #include <X11/keysym.h>
34 #include <X11/extensions/XShm.h>
35 #include <sys/ipc.h>
36 #include <sys/shm.h>
37 #include <errno.h>
38
39 #ifdef HAVE_PTHREADS
40 # include <pthread.h>
41 #endif
42
43 #ifdef ENABLE_XF86_DGA
44 # include <X11/extensions/xf86dga.h>
45 #endif
46
47 #ifdef ENABLE_XF86_VIDMODE
48 # include <X11/extensions/xf86vmode.h>
49 #endif
50
51 #ifdef ENABLE_FBDEV_DGA
52 # include <sys/mman.h>
53 #endif
54
55 #ifdef ENABLE_VOSF
56 # include <math.h> // log()
57 # include <unistd.h>
58 # include <signal.h>
59 # include <fcntl.h>
60 # include <sys/mman.h>
61 #endif
62
63 #include "cpu_emulation.h"
64 #include "main.h"
65 #include "adb.h"
66 #include "macos_util.h"
67 #include "prefs.h"
68 #include "user_strings.h"
69 #include "video.h"
70
71 #define DEBUG 0
72 #include "debug.h"
73
74
75 // Display types
76 enum {
77 DISPLAY_WINDOW, // X11 window, using MIT SHM extensions if possible
78 DISPLAY_DGA // DGA fullscreen display
79 };
80
81 // Constants
82 const char KEYCODE_FILE_NAME[] = DATADIR "/keycodes";
83 const char FBDEVICES_FILE_NAME[] = DATADIR "/fbdevices";
84
85
86 // Global variables
87 static int32 frame_skip; // Prefs items
88 static int16 mouse_wheel_mode = 1;
89 static int16 mouse_wheel_lines = 3;
90
91 static int display_type = DISPLAY_WINDOW; // See enum above
92 static bool local_X11; // Flag: X server running on local machine?
93 static uint8 *the_buffer; // Mac frame buffer
94
95 #ifdef HAVE_PTHREADS
96 static bool redraw_thread_active = false; // Flag: Redraw thread installed
97 static volatile bool redraw_thread_cancel = false; // Flag: Cancel Redraw thread
98 static pthread_t redraw_thread; // Redraw thread
99 #endif
100
101 static bool has_dga = false; // Flag: Video DGA capable
102 static bool has_vidmode = false; // Flag: VidMode extension available
103
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 bool emerg_quit = false; // Flag: Ctrl-Esc pressed, emergency quit requested from MacOS thread
108 static bool emul_suspended = false; // Flag: Emulator suspended
109
110 static bool classic_mode = false; // Flag: Classic Mac video mode
111
112 static bool use_keycodes = false; // Flag: Use keycodes rather than keysyms
113 static int keycode_table[256]; // X keycode -> Mac keycode translation table
114
115 // X11 variables
116 static int screen; // Screen number
117 static int xdepth; // Depth of X screen
118 static int depth; // Depth of Mac frame buffer
119 static Window rootwin, the_win; // Root window and our window
120 static XVisualInfo visualInfo;
121 static Visual *vis;
122 static Colormap cmap[2]; // Two colormaps (DGA) for 8-bit mode
123 static XColor black, white;
124 static unsigned long black_pixel, white_pixel;
125 static int eventmask;
126 static const int win_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | ExposureMask;
127 static const int dga_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
128
129 static XColor palette[256]; // Color palette for 8-bit mode
130 static bool palette_changed = false; // Flag: Palette changed, redraw thread must set new colors
131 #ifdef HAVE_PTHREADS
132 static pthread_mutex_t palette_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect palette
133 #endif
134
135 // Variables for window mode
136 static GC the_gc;
137 static XImage *img = NULL;
138 static XShmSegmentInfo shminfo;
139 static Cursor mac_cursor;
140 static uint8 *the_buffer_copy = NULL; // Copy of Mac frame buffer
141 static bool have_shm = false; // Flag: SHM extensions available
142 static bool updt_box[17][17]; // Flag for Update
143 static int nr_boxes;
144 static const int sm_uptd[] = {4,1,6,3,0,5,2,7};
145 static int sm_no_boxes[] = {1,8,32,64,128,300};
146
147 // Variables for XF86 DGA mode
148 static int current_dga_cmap; // Number (0 or 1) of currently installed DGA colormap
149 static Window suspend_win; // "Suspend" window
150 static void *fb_save = NULL; // Saved frame buffer for suspend
151 #ifdef HAVE_PTHREADS
152 static pthread_mutex_t frame_buffer_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect frame buffer
153 #endif
154
155 // Variables for fbdev DGA mode
156 const char FBDEVICE_FILE_NAME[] = "/dev/fb";
157 static int fbdev_fd;
158
159 #ifdef ENABLE_XF86_VIDMODE
160 // Variables for XF86 VidMode support
161 static XF86VidModeModeInfo **x_video_modes; // Array of all available modes
162 static int num_x_video_modes;
163 #endif
164
165 #ifdef ENABLE_VOSF
166 static bool use_vosf = true; // Flag: VOSF enabled
167 #else
168 static const bool use_vosf = false; // Flag: VOSF enabled
169 #endif
170
171 #ifdef ENABLE_VOSF
172 static uint8 * the_host_buffer; // Host frame buffer in VOSF mode
173 static uint32 the_buffer_size; // Size of allocated the_buffer
174 #endif
175
176 #ifdef ENABLE_VOSF
177 // Variables for Video on SEGV support (taken from the Win32 port)
178 struct ScreenPageInfo {
179 int top, bottom; // Mapping between this virtual page and Mac scanlines
180 };
181
182 struct ScreenInfo {
183 uint32 memBase; // Real start address
184 uint32 memStart; // Start address aligned to page boundary
185 uint32 memEnd; // Address of one-past-the-end of the screen
186 uint32 memLength; // Length of the memory addressed by the screen pages
187
188 uint32 pageSize; // Size of a page
189 int pageBits; // Shift count to get the page number
190 uint32 pageCount; // Number of pages allocated to the screen
191
192 uint8 * dirtyPages; // Table of flags set if page was altered
193 ScreenPageInfo * pageInfo; // Table of mappings page -> Mac scanlines
194 };
195
196 static ScreenInfo mainBuffer;
197
198 #define PFLAG_SET(page) mainBuffer.dirtyPages[page] = 1
199 #define PFLAG_CLEAR(page) mainBuffer.dirtyPages[page] = 0
200 #define PFLAG_ISSET(page) mainBuffer.dirtyPages[page]
201 #define PFLAG_ISCLEAR(page) (mainBuffer.dirtyPages[page] == 0)
202 #ifdef UNALIGNED_PROFITABLE
203 # define PFLAG_ISCLEAR_4(page) (*((uint32 *)(mainBuffer.dirtyPages + page)) == 0)
204 #else
205 # define PFLAG_ISCLEAR_4(page) \
206 (mainBuffer.dirtyPages[page ] == 0) \
207 && (mainBuffer.dirtyPages[page+1] == 0) \
208 && (mainBuffer.dirtyPages[page+2] == 0) \
209 && (mainBuffer.dirtyPages[page+3] == 0)
210 #endif
211 #define PFLAG_CLEAR_ALL memset(mainBuffer.dirtyPages, 0, mainBuffer.pageCount)
212 #define PFLAG_SET_ALL memset(mainBuffer.dirtyPages, 1, mainBuffer.pageCount)
213
214 static int zero_fd = -1;
215 static bool Screen_fault_handler_init();
216 static struct sigaction vosf_sa;
217
218 #ifdef HAVE_PTHREADS
219 static pthread_mutex_t Screen_draw_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect frame buffer (dirtyPages in fact)
220 #endif
221
222 #endif
223
224 // VideoRefresh function
225 void VideoRefreshInit(void);
226 static void (*video_refresh)(void);
227
228 // Prototypes
229 static void *redraw_func(void *arg);
230 static int event2keycode(XKeyEvent *ev);
231
232
233 // From main_unix.cpp
234 extern char *x_display_name;
235 extern Display *x_display;
236
237 // From sys_unix.cpp
238 extern void SysMountFirstFloppy(void);
239
240 #ifdef ENABLE_VOSF
241 # include "video_vosf.h"
242 #endif
243
244
245 /*
246 * Initialization
247 */
248
249 // Set VideoMonitor according to video mode
250 void set_video_monitor(int width, int height, int bytes_per_row, bool native_byte_order)
251 {
252 #if !REAL_ADDRESSING && !DIRECT_ADDRESSING
253 int layout = FLAYOUT_DIRECT;
254 switch (depth) {
255 case 1:
256 layout = FLAYOUT_DIRECT;
257 break;
258 case 8:
259 layout = FLAYOUT_DIRECT;
260 break;
261 case 15:
262 layout = FLAYOUT_HOST_555;
263 break;
264 case 16:
265 layout = FLAYOUT_HOST_565;
266 break;
267 case 24:
268 case 32:
269 layout = FLAYOUT_HOST_888;
270 break;
271 }
272 if (native_byte_order)
273 MacFrameLayout = layout;
274 else
275 MacFrameLayout = FLAYOUT_DIRECT;
276 #endif
277 switch (depth) {
278 case 1:
279 VideoMonitor.mode = VMODE_1BIT;
280 break;
281 case 8:
282 VideoMonitor.mode = VMODE_8BIT;
283 break;
284 case 15:
285 VideoMonitor.mode = VMODE_16BIT;
286 break;
287 case 16:
288 VideoMonitor.mode = VMODE_16BIT;
289 break;
290 case 24:
291 case 32:
292 VideoMonitor.mode = VMODE_32BIT;
293 break;
294 }
295 VideoMonitor.x = width;
296 VideoMonitor.y = height;
297 VideoMonitor.bytes_per_row = bytes_per_row;
298 }
299
300 // Trap SHM errors
301 static bool shm_error = false;
302 static int (*old_error_handler)(Display *, XErrorEvent *);
303
304 static int error_handler(Display *d, XErrorEvent *e)
305 {
306 if (e->error_code == BadAccess) {
307 shm_error = true;
308 return 0;
309 } else
310 return old_error_handler(d, e);
311 }
312
313 // Init window mode
314 static bool init_window(int width, int height)
315 {
316 int aligned_width = (width + 15) & ~15;
317 int aligned_height = (height + 15) & ~15;
318
319 // Set absolute mouse mode
320 ADBSetRelMouseMode(false);
321
322 // Read frame skip prefs
323 frame_skip = PrefsFindInt32("frameskip");
324
325 // Create window
326 XSetWindowAttributes wattr;
327 wattr.event_mask = eventmask = win_eventmask;
328 wattr.background_pixel = black_pixel;
329 wattr.border_pixel = black_pixel;
330 wattr.backing_store = NotUseful;
331 wattr.save_under = false;
332 wattr.backing_planes = xdepth;
333
334 XSync(x_display, false);
335 the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
336 InputOutput, vis, CWEventMask | CWBackPixel | CWBorderPixel |
337 CWBackingStore | CWBackingPlanes, &wattr);
338 XSync(x_display, false);
339 XStoreName(x_display, the_win, GetString(STR_WINDOW_TITLE));
340 XMapRaised(x_display, the_win);
341 XSync(x_display, false);
342
343 // Set colormap
344 if (depth == 8) {
345 XSetWindowColormap(x_display, the_win, cmap[0]);
346 XSetWMColormapWindows(x_display, the_win, &the_win, 1);
347 }
348
349 // Make window unresizable
350 XSizeHints *hints;
351 if ((hints = XAllocSizeHints()) != NULL) {
352 hints->min_width = width;
353 hints->max_width = width;
354 hints->min_height = height;
355 hints->max_height = height;
356 hints->flags = PMinSize | PMaxSize;
357 XSetWMNormalHints(x_display, the_win, hints);
358 XFree((char *)hints);
359 }
360
361 // Try to create and attach SHM image
362 have_shm = false;
363 if (depth != 1 && local_X11 && XShmQueryExtension(x_display)) {
364
365 // Create SHM image ("height + 2" for safety)
366 img = XShmCreateImage(x_display, vis, depth, depth == 1 ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
367 shminfo.shmid = shmget(IPC_PRIVATE, (aligned_height + 2) * img->bytes_per_line, IPC_CREAT | 0777);
368 the_buffer_copy = (uint8 *)shmat(shminfo.shmid, 0, 0);
369 shminfo.shmaddr = img->data = (char *)the_buffer_copy;
370 shminfo.readOnly = False;
371
372 // Try to attach SHM image, catching errors
373 shm_error = false;
374 old_error_handler = XSetErrorHandler(error_handler);
375 XShmAttach(x_display, &shminfo);
376 XSync(x_display, false);
377 XSetErrorHandler(old_error_handler);
378 if (shm_error) {
379 shmdt(shminfo.shmaddr);
380 XDestroyImage(img);
381 shminfo.shmid = -1;
382 } else {
383 have_shm = true;
384 shmctl(shminfo.shmid, IPC_RMID, 0);
385 }
386 }
387
388 // Create normal X image if SHM doesn't work ("height + 2" for safety)
389 if (!have_shm) {
390 int bytes_per_row = aligned_width;
391 switch (depth) {
392 case 1:
393 bytes_per_row /= 8;
394 break;
395 case 15:
396 case 16:
397 bytes_per_row *= 2;
398 break;
399 case 24:
400 case 32:
401 bytes_per_row *= 4;
402 break;
403 }
404 the_buffer_copy = (uint8 *)malloc((aligned_height + 2) * bytes_per_row);
405 img = XCreateImage(x_display, vis, depth, depth == 1 ? XYBitmap : ZPixmap, 0, (char *)the_buffer_copy, aligned_width, aligned_height, 32, bytes_per_row);
406 }
407
408 // 1-Bit mode is big-endian
409 if (depth == 1) {
410 img->byte_order = MSBFirst;
411 img->bitmap_bit_order = MSBFirst;
412 }
413
414 #ifdef ENABLE_VOSF
415 // Allocate a page-aligned chunk of memory for frame buffer
416 the_buffer_size = align_on_page_boundary((aligned_height + 2) * img->bytes_per_line);
417 the_host_buffer = the_buffer_copy;
418
419 the_buffer_copy = (uint8 *)allocate_framebuffer(the_buffer_size);
420 memset(the_buffer_copy, 0, the_buffer_size);
421
422 the_buffer = (uint8 *)allocate_framebuffer(the_buffer_size);
423 memset(the_buffer, 0, the_buffer_size);
424 #else
425 // Allocate memory for frame buffer
426 the_buffer = (uint8 *)malloc((aligned_height + 2) * img->bytes_per_line);
427 #endif
428
429 // Create GC
430 the_gc = XCreateGC(x_display, the_win, 0, 0);
431 XSetState(x_display, the_gc, black_pixel, white_pixel, GXcopy, AllPlanes);
432
433 // Create no_cursor
434 mac_cursor = XCreatePixmapCursor(x_display,
435 XCreatePixmap(x_display, the_win, 1, 1, 1),
436 XCreatePixmap(x_display, the_win, 1, 1, 1),
437 &black, &white, 0, 0);
438 XDefineCursor(x_display, the_win, mac_cursor);
439
440 // Set VideoMonitor
441 bool native_byte_order;
442 #ifdef WORDS_BIGENDIAN
443 native_byte_order = (img->bitmap_bit_order == MSBFirst);
444 #else
445 native_byte_order = (img->bitmap_bit_order == LSBFirst);
446 #endif
447 #ifdef ENABLE_VOSF
448 do_update_framebuffer = GET_FBCOPY_FUNC(depth, native_byte_order, DISPLAY_WINDOW);
449 #endif
450 set_video_monitor(width, height, img->bytes_per_line, native_byte_order);
451
452 #if REAL_ADDRESSING || DIRECT_ADDRESSING
453 VideoMonitor.mac_frame_base = Host2MacAddr(the_buffer);
454 #else
455 VideoMonitor.mac_frame_base = MacFrameBaseMac;
456 #endif
457 return true;
458 }
459
460 // Init fbdev DGA display
461 static bool init_fbdev_dga(char *in_fb_name)
462 {
463 #ifdef ENABLE_FBDEV_DGA
464 // Find the maximum depth available
465 int ndepths, max_depth(0);
466 int *depths = XListDepths(x_display, screen, &ndepths);
467 if (depths == NULL) {
468 printf("FATAL: Could not determine the maximal depth available\n");
469 return false;
470 } else {
471 while (ndepths-- > 0) {
472 if (depths[ndepths] > max_depth)
473 max_depth = depths[ndepths];
474 }
475 }
476
477 // Get fbdevices file path from preferences
478 const char *fbd_path = PrefsFindString("fbdevicefile");
479
480 // Open fbdevices file
481 FILE *fp = fopen(fbd_path ? fbd_path : FBDEVICES_FILE_NAME, "r");
482 if (fp == NULL) {
483 char str[256];
484 sprintf(str, GetString(STR_NO_FBDEVICE_FILE_ERR), fbd_path ? fbd_path : FBDEVICES_FILE_NAME, strerror(errno));
485 ErrorAlert(str);
486 return false;
487 }
488
489 int fb_depth; // supported depth
490 uint32 fb_offset; // offset used for mmap(2)
491 char fb_name[20];
492 char line[256];
493 bool device_found = false;
494 while (fgets(line, 255, fp)) {
495 // Read line
496 int len = strlen(line);
497 if (len == 0)
498 continue;
499 line[len - 1] = '\0';
500
501 // Comments begin with "#" or ";"
502 if ((line[0] == '#') || (line[0] == ';') || (line[0] == '\0'))
503 continue;
504
505 if ((sscanf(line, "%19s %d %x", &fb_name, &fb_depth, &fb_offset) == 3)
506 && (strcmp(fb_name, in_fb_name) == 0) && (fb_depth == max_depth)) {
507 device_found = true;
508 break;
509 }
510 }
511
512 // fbdevices file completely read
513 fclose(fp);
514
515 // Frame buffer name not found ? Then, display warning
516 if (!device_found) {
517 char str[256];
518 sprintf(str, GetString(STR_FBDEV_NAME_ERR), in_fb_name, max_depth);
519 ErrorAlert(str);
520 return false;
521 }
522
523 int width = DisplayWidth(x_display, screen);
524 int height = DisplayHeight(x_display, screen);
525 depth = fb_depth; // max_depth
526
527 // Set relative mouse mode
528 ADBSetRelMouseMode(false);
529
530 // Create window
531 XSetWindowAttributes wattr;
532 wattr.override_redirect = True;
533 wattr.backing_store = NotUseful;
534 wattr.background_pixel = white_pixel;
535 wattr.border_pixel = black_pixel;
536 wattr.event_mask = eventmask = dga_eventmask;
537
538 XSync(x_display, false);
539 the_win = XCreateWindow(x_display, rootwin,
540 0, 0, width, height,
541 0, xdepth, InputOutput, vis,
542 CWEventMask|CWBackPixel|CWBorderPixel|CWOverrideRedirect|CWBackingStore,
543 &wattr);
544 XSync(x_display, false);
545 XMapRaised(x_display, the_win);
546 XSync(x_display, false);
547
548 // Grab mouse and keyboard
549 XGrabKeyboard(x_display, the_win, True,
550 GrabModeAsync, GrabModeAsync, CurrentTime);
551 XGrabPointer(x_display, the_win, True,
552 PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
553 GrabModeAsync, GrabModeAsync, the_win, None, CurrentTime);
554
555 // Set colormap
556 if (depth == 8) {
557 XSetWindowColormap(x_display, the_win, cmap[0]);
558 XSetWMColormapWindows(x_display, the_win, &the_win, 1);
559 }
560
561 // Set VideoMonitor
562 int bytes_per_row = width;
563 switch (depth) {
564 case 1:
565 bytes_per_row = ((width | 7) & ~7) >> 3;
566 break;
567 case 15:
568 case 16:
569 bytes_per_row *= 2;
570 break;
571 case 24:
572 case 32:
573 bytes_per_row *= 4;
574 break;
575 }
576
577 if ((the_buffer = (uint8 *) mmap(NULL, height * bytes_per_row, PROT_READ | PROT_WRITE, MAP_PRIVATE, fbdev_fd, fb_offset)) == MAP_FAILED) {
578 if ((the_buffer = (uint8 *) mmap(NULL, height * bytes_per_row, PROT_READ | PROT_WRITE, MAP_SHARED, fbdev_fd, fb_offset)) == MAP_FAILED) {
579 char str[256];
580 sprintf(str, GetString(STR_FBDEV_MMAP_ERR), strerror(errno));
581 ErrorAlert(str);
582 return false;
583 }
584 }
585
586 #if REAL_ADDRESSING || DIRECT_ADDRESSING
587 // If the blit function is null, i.e. just a copy of the buffer,
588 // we first try to avoid the allocation of a temporary frame buffer
589 use_vosf = true;
590 do_update_framebuffer = GET_FBCOPY_FUNC(depth, true, DISPLAY_DGA);
591 if (do_update_framebuffer == FBCOPY_FUNC(fbcopy_raw))
592 use_vosf = false;
593
594 if (use_vosf) {
595 the_host_buffer = the_buffer;
596 the_buffer_size = align_on_page_boundary((height + 2) * bytes_per_row);
597 the_buffer_copy = (uint8 *)malloc(the_buffer_size);
598 memset(the_buffer_copy, 0, the_buffer_size);
599 the_buffer = (uint8 *)allocate_framebuffer(the_buffer_size);
600 memset(the_buffer, 0, the_buffer_size);
601 }
602 #elif ENABLE_VOSF
603 use_vosf = false;
604 #endif
605
606 set_video_monitor(width, height, bytes_per_row, true);
607 #if REAL_ADDRESSING || DIRECT_ADDRESSING
608 VideoMonitor.mac_frame_base = Host2MacAddr(the_buffer);
609 #else
610 VideoMonitor.mac_frame_base = MacFrameBaseMac;
611 #endif
612 return true;
613 #else
614 ErrorAlert("Basilisk II has been compiled with fbdev DGA support disabled.");
615 return false;
616 #endif
617 }
618
619 // Init XF86 DGA display
620 static bool init_xf86_dga(int width, int height)
621 {
622 #ifdef ENABLE_XF86_DGA
623 // Set relative mouse mode
624 ADBSetRelMouseMode(true);
625
626 #ifdef ENABLE_XF86_VIDMODE
627 // Switch to best mode
628 if (has_vidmode) {
629 int best = 0;
630 for (int i=1; i<num_x_video_modes; i++) {
631 if (x_video_modes[i]->hdisplay >= width && x_video_modes[i]->vdisplay >= height &&
632 x_video_modes[i]->hdisplay <= x_video_modes[best]->hdisplay && x_video_modes[i]->vdisplay <= x_video_modes[best]->vdisplay) {
633 best = i;
634 }
635 }
636 XF86VidModeSwitchToMode(x_display, screen, x_video_modes[best]);
637 XF86VidModeSetViewPort(x_display, screen, 0, 0);
638 }
639 #endif
640
641 // Create window
642 XSetWindowAttributes wattr;
643 wattr.event_mask = eventmask = dga_eventmask;
644 wattr.border_pixel = black_pixel;
645 wattr.override_redirect = True;
646
647 XSync(x_display, false);
648 the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
649 InputOutput, vis, CWEventMask | CWBorderPixel | CWOverrideRedirect, &wattr);
650 XSync(x_display, false);
651 XStoreName(x_display, the_win, GetString(STR_WINDOW_TITLE));
652 XMapRaised(x_display, the_win);
653 XSync(x_display, false);
654
655 // Establish direct screen connection
656 XMoveResizeWindow(x_display, the_win, 0, 0, width, height);
657 XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
658 XGrabKeyboard(x_display, rootwin, True, GrabModeAsync, GrabModeAsync, CurrentTime);
659 XGrabPointer(x_display, rootwin, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
660
661 int v_width, v_bank, v_size;
662 XF86DGAGetVideo(x_display, screen, (char **)&the_buffer, &v_width, &v_bank, &v_size);
663 XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
664 XF86DGASetViewPort(x_display, screen, 0, 0);
665 XF86DGASetVidPage(x_display, screen, 0);
666
667 // Set colormap
668 if (depth == 8) {
669 XSetWindowColormap(x_display, the_win, cmap[current_dga_cmap = 0]);
670 XSetWMColormapWindows(x_display, the_win, &the_win, 1);
671 XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
672 }
673
674 // Set VideoMonitor
675 int bytes_per_row = (v_width + 7) & ~7;
676 switch (depth) {
677 case 1:
678 bytes_per_row /= 8;
679 break;
680 case 15:
681 case 16:
682 bytes_per_row *= 2;
683 break;
684 case 24:
685 case 32:
686 bytes_per_row *= 4;
687 break;
688 }
689
690 #if REAL_ADDRESSING || DIRECT_ADDRESSING
691 // If the blit function is null, i.e. just a copy of the buffer,
692 // we first try to avoid the allocation of a temporary frame buffer
693 use_vosf = true;
694 do_update_framebuffer = GET_FBCOPY_FUNC(depth, true, DISPLAY_DGA);
695 if (do_update_framebuffer == FBCOPY_FUNC(fbcopy_raw))
696 use_vosf = false;
697
698 if (use_vosf) {
699 the_host_buffer = the_buffer;
700 the_buffer_size = align_on_page_boundary((height + 2) * bytes_per_row);
701 the_buffer_copy = (uint8 *)malloc(the_buffer_size);
702 memset(the_buffer_copy, 0, the_buffer_size);
703 the_buffer = (uint8 *)allocate_framebuffer(the_buffer_size);
704 memset(the_buffer, 0, the_buffer_size);
705 }
706 #elif ENABLE_VOSF
707 // The UAE memory handlers will already color conversion, if needed.
708 use_vosf = false;
709 #endif
710
711 set_video_monitor(width, height, bytes_per_row, true);
712 #if REAL_ADDRESSING || DIRECT_ADDRESSING
713 VideoMonitor.mac_frame_base = Host2MacAddr(the_buffer);
714 // MacFrameLayout = FLAYOUT_DIRECT;
715 #else
716 VideoMonitor.mac_frame_base = MacFrameBaseMac;
717 #endif
718 return true;
719 #else
720 ErrorAlert("Basilisk II has been compiled with XF86 DGA support disabled.");
721 return false;
722 #endif
723 }
724
725 // Init keycode translation table
726 static void keycode_init(void)
727 {
728 bool use_kc = PrefsFindBool("keycodes");
729 if (use_kc) {
730
731 // Get keycode file path from preferences
732 const char *kc_path = PrefsFindString("keycodefile");
733
734 // Open keycode table
735 FILE *f = fopen(kc_path ? kc_path : KEYCODE_FILE_NAME, "r");
736 if (f == NULL) {
737 char str[256];
738 sprintf(str, GetString(STR_KEYCODE_FILE_WARN), kc_path ? kc_path : KEYCODE_FILE_NAME, strerror(errno));
739 WarningAlert(str);
740 return;
741 }
742
743 // Default translation table
744 for (int i=0; i<256; i++)
745 keycode_table[i] = -1;
746
747 // Search for server vendor string, then read keycodes
748 const char *vendor = ServerVendor(x_display);
749 bool vendor_found = false;
750 char line[256];
751 while (fgets(line, 255, f)) {
752 // Read line
753 int len = strlen(line);
754 if (len == 0)
755 continue;
756 line[len-1] = 0;
757
758 // Comments begin with "#" or ";"
759 if (line[0] == '#' || line[0] == ';' || line[0] == 0)
760 continue;
761
762 if (vendor_found) {
763 // Read keycode
764 int x_code, mac_code;
765 if (sscanf(line, "%d %d", &x_code, &mac_code) == 2)
766 keycode_table[x_code & 0xff] = mac_code;
767 else
768 break;
769 } else {
770 // Search for vendor string
771 if (strstr(vendor, line) == vendor)
772 vendor_found = true;
773 }
774 }
775
776 // Keycode file completely read
777 fclose(f);
778 use_keycodes = vendor_found;
779
780 // Vendor not found? Then display warning
781 if (!vendor_found) {
782 char str[256];
783 sprintf(str, GetString(STR_KEYCODE_VENDOR_WARN), vendor, kc_path ? kc_path : KEYCODE_FILE_NAME);
784 WarningAlert(str);
785 return;
786 }
787 }
788 }
789
790 bool VideoInitBuffer()
791 {
792 #ifdef ENABLE_VOSF
793 if (use_vosf) {
794 const uint32 page_size = getpagesize();
795 const uint32 page_mask = page_size - 1;
796
797 mainBuffer.memBase = (uint32) the_buffer;
798 // Align the frame buffer on page boundary
799 mainBuffer.memStart = (uint32)((((unsigned long) the_buffer) + page_mask) & ~page_mask);
800 mainBuffer.memLength = the_buffer_size;
801 mainBuffer.memEnd = mainBuffer.memStart + mainBuffer.memLength;
802
803 mainBuffer.pageSize = page_size;
804 mainBuffer.pageCount = (mainBuffer.memLength + page_mask)/mainBuffer.pageSize;
805 mainBuffer.pageBits = int( log(mainBuffer.pageSize) / log(2.0) );
806
807 if (mainBuffer.dirtyPages != 0)
808 free(mainBuffer.dirtyPages);
809
810 mainBuffer.dirtyPages = (uint8 *) malloc(mainBuffer.pageCount);
811
812 if (mainBuffer.pageInfo != 0)
813 free(mainBuffer.pageInfo);
814
815 mainBuffer.pageInfo = (ScreenPageInfo *) malloc(mainBuffer.pageCount * sizeof(ScreenPageInfo));
816
817 if ((mainBuffer.dirtyPages == 0) || (mainBuffer.pageInfo == 0))
818 return false;
819
820 PFLAG_CLEAR_ALL;
821
822 uint32 a = 0;
823 for (int i = 0; i < mainBuffer.pageCount; i++) {
824 int y1 = a / VideoMonitor.bytes_per_row;
825 if (y1 >= VideoMonitor.y)
826 y1 = VideoMonitor.y - 1;
827
828 int y2 = (a + mainBuffer.pageSize) / VideoMonitor.bytes_per_row;
829 if (y2 >= VideoMonitor.y)
830 y2 = VideoMonitor.y - 1;
831
832 mainBuffer.pageInfo[i].top = y1;
833 mainBuffer.pageInfo[i].bottom = y2;
834
835 a += mainBuffer.pageSize;
836 if (a > mainBuffer.memLength)
837 a = mainBuffer.memLength;
838 }
839
840 // We can now write-protect the frame buffer
841 if (mprotect((caddr_t)mainBuffer.memStart, mainBuffer.memLength, PROT_READ) != 0)
842 return false;
843 }
844 #endif
845 return true;
846 }
847
848 bool VideoInit(bool classic)
849 {
850 #ifdef ENABLE_VOSF
851 // Open /dev/zero
852 zero_fd = open("/dev/zero", O_RDWR);
853 if (zero_fd < 0) {
854 char str[256];
855 sprintf(str, GetString(STR_NO_DEV_ZERO_ERR), strerror(errno));
856 ErrorAlert(str);
857 return false;
858 }
859
860 // Zero the mainBuffer structure
861 mainBuffer.dirtyPages = 0;
862 mainBuffer.pageInfo = 0;
863 #endif
864
865 // Check if X server runs on local machine
866 local_X11 = (strncmp(XDisplayName(x_display_name), ":", 1) == 0)
867 || (strncmp(XDisplayName(x_display_name), "unix:", 5) == 0);
868
869 // Init keycode translation
870 keycode_init();
871
872 // Read prefs
873 mouse_wheel_mode = PrefsFindInt16("mousewheelmode");
874 mouse_wheel_lines = PrefsFindInt16("mousewheellines");
875
876 // Find screen and root window
877 screen = XDefaultScreen(x_display);
878 rootwin = XRootWindow(x_display, screen);
879
880 // Get screen depth
881 xdepth = DefaultDepth(x_display, screen);
882
883 #ifdef ENABLE_FBDEV_DGA
884 // Frame buffer name
885 char fb_name[20];
886
887 // Could do fbdev dga ?
888 if ((fbdev_fd = open(FBDEVICE_FILE_NAME, O_RDWR)) != -1)
889 has_dga = true;
890 else
891 has_dga = false;
892 #endif
893
894 #ifdef ENABLE_XF86_DGA
895 // DGA available?
896 int dga_event_base, dga_error_base;
897 if (local_X11 && XF86DGAQueryExtension(x_display, &dga_event_base, &dga_error_base)) {
898 int dga_flags = 0;
899 XF86DGAQueryDirectVideo(x_display, screen, &dga_flags);
900 has_dga = dga_flags & XF86DGADirectPresent;
901 } else
902 has_dga = false;
903 #endif
904
905 #ifdef ENABLE_XF86_VIDMODE
906 // VidMode available?
907 int vm_event_base, vm_error_base;
908 has_vidmode = XF86VidModeQueryExtension(x_display, &vm_event_base, &vm_error_base);
909 if (has_vidmode)
910 XF86VidModeGetAllModeLines(x_display, screen, &num_x_video_modes, &x_video_modes);
911 #endif
912
913 // Find black and white colors
914 XParseColor(x_display, DefaultColormap(x_display, screen), "rgb:00/00/00", &black);
915 XAllocColor(x_display, DefaultColormap(x_display, screen), &black);
916 XParseColor(x_display, DefaultColormap(x_display, screen), "rgb:ff/ff/ff", &white);
917 XAllocColor(x_display, DefaultColormap(x_display, screen), &white);
918 black_pixel = BlackPixel(x_display, screen);
919 white_pixel = WhitePixel(x_display, screen);
920
921 // Get appropriate visual
922 int color_class;
923 switch (xdepth) {
924 case 1:
925 color_class = StaticGray;
926 break;
927 case 8:
928 color_class = PseudoColor;
929 break;
930 case 15:
931 case 16:
932 case 24:
933 case 32:
934 color_class = TrueColor;
935 break;
936 default:
937 ErrorAlert(GetString(STR_UNSUPP_DEPTH_ERR));
938 return false;
939 }
940 if (!XMatchVisualInfo(x_display, screen, xdepth, color_class, &visualInfo)) {
941 ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
942 return false;
943 }
944 if (visualInfo.depth != xdepth) {
945 ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
946 return false;
947 }
948 vis = visualInfo.visual;
949
950 // Mac screen depth is always 1 bit in Classic mode, but follows X depth otherwise
951 classic_mode = classic;
952 if (classic)
953 depth = 1;
954 else
955 depth = xdepth;
956
957 // Create color maps for 8 bit mode
958 if (depth == 8) {
959 cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocAll);
960 cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocAll);
961 XInstallColormap(x_display, cmap[0]);
962 XInstallColormap(x_display, cmap[1]);
963 }
964
965 // Get screen mode from preferences
966 const char *mode_str;
967 if (classic)
968 mode_str = "win/512/342";
969 else
970 mode_str = PrefsFindString("screen");
971
972 // Determine type and mode
973 int width = 512, height = 384;
974 display_type = DISPLAY_WINDOW;
975 if (mode_str) {
976 if (sscanf(mode_str, "win/%d/%d", &width, &height) == 2)
977 display_type = DISPLAY_WINDOW;
978 #ifdef ENABLE_FBDEV_DGA
979 else if (has_dga && sscanf(mode_str, "dga/%19s", fb_name) == 1) {
980 #else
981 else if (has_dga && sscanf(mode_str, "dga/%d/%d", &width, &height) == 2) {
982 #endif
983 display_type = DISPLAY_DGA;
984 if (width > DisplayWidth(x_display, screen))
985 width = DisplayWidth(x_display, screen);
986 if (height > DisplayHeight(x_display, screen))
987 height = DisplayHeight(x_display, screen);
988 }
989 if (width <= 0)
990 width = DisplayWidth(x_display, screen);
991 if (height <= 0)
992 height = DisplayHeight(x_display, screen);
993 }
994
995 // Initialize according to display type
996 switch (display_type) {
997 case DISPLAY_WINDOW:
998 if (!init_window(width, height))
999 return false;
1000 break;
1001 case DISPLAY_DGA:
1002 #ifdef ENABLE_FBDEV_DGA
1003 if (!init_fbdev_dga(fb_name))
1004 #else
1005 if (!init_xf86_dga(width, height))
1006 #endif
1007 return false;
1008 break;
1009 }
1010
1011 #ifdef HAVE_PTHREADS
1012 // Lock down frame buffer
1013 pthread_mutex_lock(&frame_buffer_lock);
1014 #endif
1015
1016 #if !REAL_ADDRESSING && !DIRECT_ADDRESSING
1017 // Set variables for UAE memory mapping
1018 MacFrameBaseHost = the_buffer;
1019 MacFrameSize = VideoMonitor.bytes_per_row * VideoMonitor.y;
1020
1021 // No special frame buffer in Classic mode (frame buffer is in Mac RAM)
1022 if (classic)
1023 MacFrameLayout = FLAYOUT_NONE;
1024 #endif
1025
1026 #ifdef ENABLE_VOSF
1027 if (use_vosf) {
1028 // Initialize the mainBuffer structure
1029 if (!VideoInitBuffer()) {
1030 // TODO: STR_VOSF_INIT_ERR ?
1031 ErrorAlert("Could not initialize Video on SEGV signals");
1032 return false;
1033 }
1034
1035 // Initialize the handler for SIGSEGV
1036 if (!Screen_fault_handler_init()) {
1037 // TODO: STR_VOSF_INIT_ERR ?
1038 ErrorAlert("Could not initialize Video on SEGV signals");
1039 return false;
1040 }
1041 }
1042 #endif
1043
1044 // Initialize VideoRefresh function
1045 VideoRefreshInit();
1046
1047 XSync(x_display, false);
1048
1049 #ifdef HAVE_PTHREADS
1050 // Start redraw/input thread
1051 redraw_thread_active = (pthread_create(&redraw_thread, NULL, redraw_func, NULL) == 0);
1052 if (!redraw_thread_active) {
1053 printf("FATAL: cannot create redraw thread\n");
1054 return false;
1055 }
1056 #endif
1057 return true;
1058 }
1059
1060
1061 /*
1062 * Deinitialization
1063 */
1064
1065 void VideoExit(void)
1066 {
1067 #ifdef HAVE_PTHREADS
1068 // Stop redraw thread
1069 if (redraw_thread_active) {
1070 redraw_thread_cancel = true;
1071 #ifdef HAVE_PTHREAD_CANCEL
1072 pthread_cancel(redraw_thread);
1073 #endif
1074 pthread_join(redraw_thread, NULL);
1075 redraw_thread_active = false;
1076 }
1077 #endif
1078
1079 #ifdef HAVE_PTHREADS
1080 // Unlock frame buffer
1081 pthread_mutex_unlock(&frame_buffer_lock);
1082 #endif
1083
1084 // Close window and server connection
1085 if (x_display != NULL) {
1086 XSync(x_display, false);
1087
1088 #ifdef ENABLE_XF86_DGA
1089 if (display_type == DISPLAY_DGA) {
1090 XF86DGADirectVideo(x_display, screen, 0);
1091 XUngrabPointer(x_display, CurrentTime);
1092 XUngrabKeyboard(x_display, CurrentTime);
1093 }
1094 #endif
1095
1096 #ifdef ENABLE_XF86_VIDMODE
1097 if (has_vidmode && display_type == DISPLAY_DGA)
1098 XF86VidModeSwitchToMode(x_display, screen, x_video_modes[0]);
1099 #endif
1100
1101 #ifdef ENABLE_FBDEV_DGA
1102 if (display_type == DISPLAY_DGA) {
1103 XUngrabPointer(x_display, CurrentTime);
1104 XUngrabKeyboard(x_display, CurrentTime);
1105 close(fbdev_fd);
1106 }
1107 #endif
1108
1109 XFlush(x_display);
1110 XSync(x_display, false);
1111 if (depth == 8) {
1112 XFreeColormap(x_display, cmap[0]);
1113 XFreeColormap(x_display, cmap[1]);
1114 }
1115
1116 if (!use_vosf) {
1117 if (the_buffer) {
1118 free(the_buffer);
1119 the_buffer = NULL;
1120 }
1121
1122 if (!have_shm && the_buffer_copy) {
1123 free(the_buffer_copy);
1124 the_buffer_copy = NULL;
1125 }
1126 }
1127 #ifdef ENABLE_VOSF
1128 else {
1129 if (the_buffer != (uint8 *)MAP_FAILED) {
1130 munmap((caddr_t)the_buffer, the_buffer_size);
1131 the_buffer = 0;
1132 }
1133
1134 if (the_buffer_copy != (uint8 *)MAP_FAILED) {
1135 munmap((caddr_t)the_buffer_copy, the_buffer_size);
1136 the_buffer_copy = 0;
1137 }
1138 }
1139 #endif
1140 }
1141
1142 #ifdef ENABLE_VOSF
1143 if (use_vosf) {
1144 // Clear mainBuffer data
1145 if (mainBuffer.pageInfo) {
1146 free(mainBuffer.pageInfo);
1147 mainBuffer.pageInfo = 0;
1148 }
1149
1150 if (mainBuffer.dirtyPages) {
1151 free(mainBuffer.dirtyPages);
1152 mainBuffer.dirtyPages = 0;
1153 }
1154 }
1155
1156 // Close /dev/zero
1157 if (zero_fd > 0)
1158 close(zero_fd);
1159 #endif
1160 }
1161
1162
1163 /*
1164 * Close down full-screen mode (if bringing up error alerts is unsafe while in full-screen mode)
1165 */
1166
1167 void VideoQuitFullScreen(void)
1168 {
1169 D(bug("VideoQuitFullScreen()\n"));
1170 if (display_type == DISPLAY_DGA)
1171 quit_full_screen = true;
1172 }
1173
1174
1175 /*
1176 * Mac VBL interrupt
1177 */
1178
1179 void VideoInterrupt(void)
1180 {
1181 // Emergency quit requested? Then quit
1182 if (emerg_quit)
1183 QuitEmulator();
1184
1185 #ifdef HAVE_PTHREADS
1186 // Temporarily give up frame buffer lock (this is the point where
1187 // we are suspended when the user presses Ctrl-Tab)
1188 pthread_mutex_unlock(&frame_buffer_lock);
1189 pthread_mutex_lock(&frame_buffer_lock);
1190 #endif
1191 }
1192
1193
1194 /*
1195 * Set palette
1196 */
1197
1198 void video_set_palette(uint8 *pal)
1199 {
1200 #ifdef HAVE_PTHREDS
1201 pthread_mutex_lock(&palette_lock);
1202 #endif
1203
1204 // Convert colors to XColor array
1205 for (int i=0; i<256; i++) {
1206 palette[i].pixel = i;
1207 palette[i].red = pal[i*3] * 0x0101;
1208 palette[i].green = pal[i*3+1] * 0x0101;
1209 palette[i].blue = pal[i*3+2] * 0x0101;
1210 palette[i].flags = DoRed | DoGreen | DoBlue;
1211 }
1212
1213 // Tell redraw thread to change palette
1214 palette_changed = true;
1215
1216 #ifdef HAVE_PTHREADS
1217 pthread_mutex_unlock(&palette_lock);
1218 #endif
1219 }
1220
1221
1222 /*
1223 * Suspend/resume emulator
1224 */
1225
1226 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1227 static void suspend_emul(void)
1228 {
1229 if (display_type == DISPLAY_DGA) {
1230 // Release ctrl key
1231 ADBKeyUp(0x36);
1232 ctrl_down = false;
1233
1234 #ifdef HAVE_PTHREADS
1235 // Lock frame buffer (this will stop the MacOS thread)
1236 pthread_mutex_lock(&frame_buffer_lock);
1237 #endif
1238
1239 // Save frame buffer
1240 fb_save = malloc(VideoMonitor.y * VideoMonitor.bytes_per_row);
1241 if (fb_save)
1242 memcpy(fb_save, the_buffer, VideoMonitor.y * VideoMonitor.bytes_per_row);
1243
1244 // Close full screen display
1245 #ifdef ENABLE_XF86_DGA
1246 XF86DGADirectVideo(x_display, screen, 0);
1247 #endif
1248 XUngrabPointer(x_display, CurrentTime);
1249 XUngrabKeyboard(x_display, CurrentTime);
1250 XUnmapWindow(x_display, the_win);
1251 XSync(x_display, false);
1252
1253 // Open "suspend" window
1254 XSetWindowAttributes wattr;
1255 wattr.event_mask = KeyPressMask;
1256 wattr.background_pixel = black_pixel;
1257 wattr.border_pixel = black_pixel;
1258 wattr.backing_store = Always;
1259 wattr.backing_planes = xdepth;
1260 wattr.colormap = DefaultColormap(x_display, screen);
1261
1262 XSync(x_display, false);
1263 suspend_win = XCreateWindow(x_display, rootwin, 0, 0, 512, 1, 0, xdepth,
1264 InputOutput, vis, CWEventMask | CWBackPixel | CWBorderPixel |
1265 CWBackingStore | CWBackingPlanes | (xdepth == 8 ? CWColormap : 0), &wattr);
1266 XSync(x_display, false);
1267 XStoreName(x_display, suspend_win, GetString(STR_SUSPEND_WINDOW_TITLE));
1268 XMapRaised(x_display, suspend_win);
1269 XSync(x_display, false);
1270 emul_suspended = true;
1271 }
1272 }
1273
1274 static void resume_emul(void)
1275 {
1276 // Close "suspend" window
1277 XDestroyWindow(x_display, suspend_win);
1278 XSync(x_display, false);
1279
1280 // Reopen full screen display
1281 XMapRaised(x_display, the_win);
1282 XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
1283 XSync(x_display, false);
1284 XGrabKeyboard(x_display, rootwin, 1, GrabModeAsync, GrabModeAsync, CurrentTime);
1285 XGrabPointer(x_display, rootwin, 1, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
1286 #ifdef ENABLE_XF86_DGA
1287 XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
1288 XF86DGASetViewPort(x_display, screen, 0, 0);
1289 #endif
1290 XSync(x_display, false);
1291
1292 // Restore frame buffer
1293 if (fb_save) {
1294 #if REAL_ADDRESSING || DIRECT_ADDRESSING
1295 if (use_vosf)
1296 mprotect((caddr_t)mainBuffer.memStart, mainBuffer.memLength, PROT_READ|PROT_WRITE);
1297 #endif
1298 memcpy(the_buffer, fb_save, VideoMonitor.y * VideoMonitor.bytes_per_row);
1299 #if REAL_ADDRESSING || DIRECT_ADDRESSING
1300 if (use_vosf) {
1301 mprotect((caddr_t)mainBuffer.memStart, mainBuffer.memLength, PROT_READ);
1302 do_update_framebuffer(the_host_buffer, the_buffer, VideoMonitor.x * VideoMonitor.bytes_per_row);
1303 #ifdef HAVE_PTHREADS
1304 pthread_mutex_lock(&Screen_draw_lock);
1305 #endif
1306 PFLAG_CLEAR_ALL;
1307 #ifdef HAVE_PTHREADS
1308 pthread_mutex_unlock(&Screen_draw_lock);
1309 #endif
1310 }
1311 #endif
1312 free(fb_save);
1313 fb_save = NULL;
1314 }
1315
1316 #ifdef ENABLE_XF86_DGA
1317 if (depth == 8)
1318 XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
1319 #endif
1320
1321 #ifdef HAVE_PTHREADS
1322 // Unlock frame buffer (and continue MacOS thread)
1323 pthread_mutex_unlock(&frame_buffer_lock);
1324 emul_suspended = false;
1325 #endif
1326 }
1327 #endif
1328
1329
1330 /*
1331 * Translate key event to Mac keycode
1332 */
1333
1334 static int kc_decode(KeySym ks)
1335 {
1336 switch (ks) {
1337 case XK_A: case XK_a: return 0x00;
1338 case XK_B: case XK_b: return 0x0b;
1339 case XK_C: case XK_c: return 0x08;
1340 case XK_D: case XK_d: return 0x02;
1341 case XK_E: case XK_e: return 0x0e;
1342 case XK_F: case XK_f: return 0x03;
1343 case XK_G: case XK_g: return 0x05;
1344 case XK_H: case XK_h: return 0x04;
1345 case XK_I: case XK_i: return 0x22;
1346 case XK_J: case XK_j: return 0x26;
1347 case XK_K: case XK_k: return 0x28;
1348 case XK_L: case XK_l: return 0x25;
1349 case XK_M: case XK_m: return 0x2e;
1350 case XK_N: case XK_n: return 0x2d;
1351 case XK_O: case XK_o: return 0x1f;
1352 case XK_P: case XK_p: return 0x23;
1353 case XK_Q: case XK_q: return 0x0c;
1354 case XK_R: case XK_r: return 0x0f;
1355 case XK_S: case XK_s: return 0x01;
1356 case XK_T: case XK_t: return 0x11;
1357 case XK_U: case XK_u: return 0x20;
1358 case XK_V: case XK_v: return 0x09;
1359 case XK_W: case XK_w: return 0x0d;
1360 case XK_X: case XK_x: return 0x07;
1361 case XK_Y: case XK_y: return 0x10;
1362 case XK_Z: case XK_z: return 0x06;
1363
1364 case XK_1: case XK_exclam: return 0x12;
1365 case XK_2: case XK_at: return 0x13;
1366 case XK_3: case XK_numbersign: return 0x14;
1367 case XK_4: case XK_dollar: return 0x15;
1368 case XK_5: case XK_percent: return 0x17;
1369 case XK_6: return 0x16;
1370 case XK_7: return 0x1a;
1371 case XK_8: return 0x1c;
1372 case XK_9: return 0x19;
1373 case XK_0: return 0x1d;
1374
1375 case XK_grave: case XK_asciitilde: return 0x0a;
1376 case XK_minus: case XK_underscore: return 0x1b;
1377 case XK_equal: case XK_plus: return 0x18;
1378 case XK_bracketleft: case XK_braceleft: return 0x21;
1379 case XK_bracketright: case XK_braceright: return 0x1e;
1380 case XK_backslash: case XK_bar: return 0x2a;
1381 case XK_semicolon: case XK_colon: return 0x29;
1382 case XK_apostrophe: case XK_quotedbl: return 0x27;
1383 case XK_comma: case XK_less: return 0x2b;
1384 case XK_period: case XK_greater: return 0x2f;
1385 case XK_slash: case XK_question: return 0x2c;
1386
1387 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1388 case XK_Tab: if (ctrl_down) {suspend_emul(); return -1;} else return 0x30;
1389 #else
1390 case XK_Tab: return 0x30;
1391 #endif
1392 case XK_Return: return 0x24;
1393 case XK_space: return 0x31;
1394 case XK_BackSpace: return 0x33;
1395
1396 case XK_Delete: return 0x75;
1397 case XK_Insert: return 0x72;
1398 case XK_Home: case XK_Help: return 0x73;
1399 case XK_End: return 0x77;
1400 #ifdef __hpux
1401 case XK_Prior: return 0x74;
1402 case XK_Next: return 0x79;
1403 #else
1404 case XK_Page_Up: return 0x74;
1405 case XK_Page_Down: return 0x79;
1406 #endif
1407
1408 case XK_Control_L: return 0x36;
1409 case XK_Control_R: return 0x36;
1410 case XK_Shift_L: return 0x38;
1411 case XK_Shift_R: return 0x38;
1412 case XK_Alt_L: return 0x37;
1413 case XK_Alt_R: return 0x37;
1414 case XK_Meta_L: return 0x3a;
1415 case XK_Meta_R: return 0x3a;
1416 case XK_Menu: return 0x32;
1417 case XK_Caps_Lock: return 0x39;
1418 case XK_Num_Lock: return 0x47;
1419
1420 case XK_Up: return 0x3e;
1421 case XK_Down: return 0x3d;
1422 case XK_Left: return 0x3b;
1423 case XK_Right: return 0x3c;
1424
1425 case XK_Escape: if (ctrl_down) {quit_full_screen = true; emerg_quit = true; return -1;} else return 0x35;
1426
1427 case XK_F1: if (ctrl_down) {SysMountFirstFloppy(); return -1;} else return 0x7a;
1428 case XK_F2: return 0x78;
1429 case XK_F3: return 0x63;
1430 case XK_F4: return 0x76;
1431 case XK_F5: return 0x60;
1432 case XK_F6: return 0x61;
1433 case XK_F7: return 0x62;
1434 case XK_F8: return 0x64;
1435 case XK_F9: return 0x65;
1436 case XK_F10: return 0x6d;
1437 case XK_F11: return 0x67;
1438 case XK_F12: return 0x6f;
1439
1440 case XK_Print: return 0x69;
1441 case XK_Scroll_Lock: return 0x6b;
1442 case XK_Pause: return 0x71;
1443
1444 #if defined(XK_KP_Prior) && defined(XK_KP_Left) && defined(XK_KP_Insert) && defined (XK_KP_End)
1445 case XK_KP_0: case XK_KP_Insert: return 0x52;
1446 case XK_KP_1: case XK_KP_End: return 0x53;
1447 case XK_KP_2: case XK_KP_Down: return 0x54;
1448 case XK_KP_3: case XK_KP_Next: return 0x55;
1449 case XK_KP_4: case XK_KP_Left: return 0x56;
1450 case XK_KP_5: case XK_KP_Begin: return 0x57;
1451 case XK_KP_6: case XK_KP_Right: return 0x58;
1452 case XK_KP_7: case XK_KP_Home: return 0x59;
1453 case XK_KP_8: case XK_KP_Up: return 0x5b;
1454 case XK_KP_9: case XK_KP_Prior: return 0x5c;
1455 case XK_KP_Decimal: case XK_KP_Delete: return 0x41;
1456 #else
1457 case XK_KP_0: return 0x52;
1458 case XK_KP_1: return 0x53;
1459 case XK_KP_2: return 0x54;
1460 case XK_KP_3: return 0x55;
1461 case XK_KP_4: return 0x56;
1462 case XK_KP_5: return 0x57;
1463 case XK_KP_6: return 0x58;
1464 case XK_KP_7: return 0x59;
1465 case XK_KP_8: return 0x5b;
1466 case XK_KP_9: return 0x5c;
1467 case XK_KP_Decimal: return 0x41;
1468 #endif
1469 case XK_KP_Add: return 0x45;
1470 case XK_KP_Subtract: return 0x4e;
1471 case XK_KP_Multiply: return 0x43;
1472 case XK_KP_Divide: return 0x4b;
1473 case XK_KP_Enter: return 0x4c;
1474 case XK_KP_Equal: return 0x51;
1475 }
1476 return -1;
1477 }
1478
1479 static int event2keycode(XKeyEvent *ev)
1480 {
1481 KeySym ks;
1482 int as;
1483 int i = 0;
1484
1485 do {
1486 ks = XLookupKeysym(ev, i++);
1487 as = kc_decode(ks);
1488 if (as != -1)
1489 return as;
1490 } while (ks != NoSymbol);
1491
1492 return -1;
1493 }
1494
1495
1496 /*
1497 * X event handling
1498 */
1499
1500 static void handle_events(void)
1501 {
1502 XEvent event;
1503 for (;;) {
1504 if (!XCheckMaskEvent(x_display, eventmask, &event))
1505 break;
1506
1507 switch (event.type) {
1508 // Mouse button
1509 case ButtonPress: {
1510 unsigned int button = ((XButtonEvent *)&event)->button;
1511 if (button < 4)
1512 ADBMouseDown(button - 1);
1513 else if (button < 6) { // Wheel mouse
1514 if (mouse_wheel_mode == 0) {
1515 int key = (button == 5) ? 0x79 : 0x74; // Page up/down
1516 ADBKeyDown(key);
1517 ADBKeyUp(key);
1518 } else {
1519 int key = (button == 5) ? 0x3d : 0x3e; // Cursor up/down
1520 for(int i=0; i<mouse_wheel_lines; i++) {
1521 ADBKeyDown(key);
1522 ADBKeyUp(key);
1523 }
1524 }
1525 }
1526 break;
1527 }
1528 case ButtonRelease: {
1529 unsigned int button = ((XButtonEvent *)&event)->button;
1530 if (button < 4)
1531 ADBMouseUp(button - 1);
1532 break;
1533 }
1534
1535 // Mouse moved
1536 case EnterNotify:
1537 ADBMouseMoved(((XMotionEvent *)&event)->x, ((XMotionEvent *)&event)->y);
1538 break;
1539 case MotionNotify:
1540 ADBMouseMoved(((XMotionEvent *)&event)->x, ((XMotionEvent *)&event)->y);
1541 break;
1542
1543 // Keyboard
1544 case KeyPress: {
1545 int code;
1546 if (use_keycodes) {
1547 event2keycode((XKeyEvent *)&event); // This is called to process the hotkeys
1548 code = keycode_table[((XKeyEvent *)&event)->keycode & 0xff];
1549 } else
1550 code = event2keycode((XKeyEvent *)&event);
1551 if (code != -1) {
1552 if (!emul_suspended) {
1553 if (code == 0x39) { // Caps Lock pressed
1554 if (caps_on) {
1555 ADBKeyUp(code);
1556 caps_on = false;
1557 } else {
1558 ADBKeyDown(code);
1559 caps_on = true;
1560 }
1561 } else
1562 ADBKeyDown(code);
1563 if (code == 0x36)
1564 ctrl_down = true;
1565 } else {
1566 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1567 if (code == 0x31)
1568 resume_emul(); // Space wakes us up
1569 #endif
1570 }
1571 }
1572 break;
1573 }
1574 case KeyRelease: {
1575 int code;
1576 if (use_keycodes) {
1577 event2keycode((XKeyEvent *)&event); // This is called to process the hotkeys
1578 code = keycode_table[((XKeyEvent *)&event)->keycode & 0xff];
1579 } else
1580 code = event2keycode((XKeyEvent *)&event);
1581 if (code != -1 && code != 0x39) { // Don't propagate Caps Lock releases
1582 ADBKeyUp(code);
1583 if (code == 0x36)
1584 ctrl_down = false;
1585 }
1586 break;
1587 }
1588
1589 // Hidden parts exposed, force complete refresh of window
1590 case Expose:
1591 if (display_type == DISPLAY_WINDOW) {
1592 #ifdef ENABLE_VOSF
1593 const XExposeEvent & xev = event.xexpose;
1594 const uint32 start = xev.y * VideoMonitor.bytes_per_row + xev.x;
1595 const uint32 end = (xev.y + xev.height - 1) * VideoMonitor.bytes_per_row + (xev.x + xev.width);
1596 int page = start >> mainBuffer.pageBits;
1597 uint32 addr = start;
1598 while (addr < end) {
1599 memset(the_buffer_copy + addr, 0, mainBuffer.pageSize);
1600 addr += mainBuffer.pageSize;
1601 #ifdef HAVE_PTHREADS
1602 pthread_mutex_lock(&Screen_draw_lock);
1603 #endif
1604 PFLAG_SET(page);
1605 #ifdef HAVE_PTHREADS
1606 pthread_mutex_unlock(&Screen_draw_lock);
1607 #endif
1608 ++page;
1609 }
1610 #else
1611 if (frame_skip == 0) { // Dynamic refresh
1612 int x1, y1;
1613 for (y1=0; y1<16; y1++)
1614 for (x1=0; x1<16; x1++)
1615 updt_box[x1][y1] = true;
1616 nr_boxes = 16 * 16;
1617 } else
1618 memset(the_buffer_copy, 0, VideoMonitor.bytes_per_row * VideoMonitor.y);
1619 #endif /* ENABLE_VOSF */
1620 }
1621 break;
1622 }
1623 }
1624 }
1625
1626
1627 /*
1628 * Window display update
1629 */
1630
1631 // Dynamic display update (variable frame rate for each box)
1632 static void update_display_dynamic(int ticker)
1633 {
1634 int y1, y2, y2s, y2a, i, x1, xm, xmo, ymo, yo, yi, yil, xi;
1635 int xil = 0;
1636 int rxm = 0, rxmo = 0;
1637 int bytes_per_row = VideoMonitor.bytes_per_row;
1638 int bytes_per_pixel = VideoMonitor.bytes_per_row / VideoMonitor.x;
1639 int rx = VideoMonitor.bytes_per_row / 16;
1640 int ry = VideoMonitor.y / 16;
1641 int max_box;
1642
1643 y2s = sm_uptd[ticker % 8];
1644 y2a = 8;
1645 for (i = 0; i < 6; i++)
1646 if (ticker % (2 << i))
1647 break;
1648 max_box = sm_no_boxes[i];
1649
1650 if (y2a) {
1651 for (y1=0; y1<16; y1++) {
1652 for (y2=y2s; y2 < ry; y2 += y2a) {
1653 i = ((y1 * ry) + y2) * bytes_per_row;
1654 for (x1=0; x1<16; x1++, i += rx) {
1655 if (updt_box[x1][y1] == false) {
1656 if (memcmp(&the_buffer_copy[i], &the_buffer[i], rx)) {
1657 updt_box[x1][y1] = true;
1658 nr_boxes++;
1659 }
1660 }
1661 }
1662 }
1663 }
1664 }
1665
1666 if ((nr_boxes <= max_box) && (nr_boxes)) {
1667 for (y1=0; y1<16; y1++) {
1668 for (x1=0; x1<16; x1++) {
1669 if (updt_box[x1][y1] == true) {
1670 if (rxm == 0)
1671 xm = x1;
1672 rxm += rx;
1673 updt_box[x1][y1] = false;
1674 }
1675 if (((updt_box[x1+1][y1] == false) || (x1 == 15)) && (rxm)) {
1676 if ((rxmo != rxm) || (xmo != xm) || (yo != y1 - 1)) {
1677 if (rxmo) {
1678 xi = xmo * rx;
1679 yi = ymo * ry;
1680 xil = rxmo;
1681 yil = (yo - ymo +1) * ry;
1682 }
1683 rxmo = rxm;
1684 xmo = xm;
1685 ymo = y1;
1686 }
1687 rxm = 0;
1688 yo = y1;
1689 }
1690 if (xil) {
1691 i = (yi * bytes_per_row) + xi;
1692 for (y2=0; y2 < yil; y2++, i += bytes_per_row)
1693 memcpy(&the_buffer_copy[i], &the_buffer[i], xil);
1694 if (depth == 1) {
1695 if (have_shm)
1696 XShmPutImage(x_display, the_win, the_gc, img, xi * 8, yi, xi * 8, yi, xil * 8, yil, 0);
1697 else
1698 XPutImage(x_display, the_win, the_gc, img, xi * 8, yi, xi * 8, yi, xil * 8, yil);
1699 } else {
1700 if (have_shm)
1701 XShmPutImage(x_display, the_win, the_gc, img, xi / bytes_per_pixel, yi, xi / bytes_per_pixel, yi, xil / bytes_per_pixel, yil, 0);
1702 else
1703 XPutImage(x_display, the_win, the_gc, img, xi / bytes_per_pixel, yi, xi / bytes_per_pixel, yi, xil / bytes_per_pixel, yil);
1704 }
1705 xil = 0;
1706 }
1707 if ((x1 == 15) && (y1 == 15) && (rxmo)) {
1708 x1--;
1709 xi = xmo * rx;
1710 yi = ymo * ry;
1711 xil = rxmo;
1712 yil = (yo - ymo +1) * ry;
1713 rxmo = 0;
1714 }
1715 }
1716 }
1717 nr_boxes = 0;
1718 }
1719 }
1720
1721 // Static display update (fixed frame rate, but incremental)
1722 static void update_display_static(void)
1723 {
1724 // Incremental update code
1725 int wide = 0, high = 0, x1, x2, y1, y2, i, j;
1726 int bytes_per_row = VideoMonitor.bytes_per_row;
1727 int bytes_per_pixel = VideoMonitor.bytes_per_row / VideoMonitor.x;
1728 uint8 *p, *p2;
1729
1730 // Check for first line from top and first line from bottom that have changed
1731 y1 = 0;
1732 for (j=0; j<VideoMonitor.y; j++) {
1733 if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
1734 y1 = j;
1735 break;
1736 }
1737 }
1738 y2 = y1 - 1;
1739 for (j=VideoMonitor.y-1; j>=y1; j--) {
1740 if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
1741 y2 = j;
1742 break;
1743 }
1744 }
1745 high = y2 - y1 + 1;
1746
1747 // Check for first column from left and first column from right that have changed
1748 if (high) {
1749 if (depth == 1) {
1750 x1 = VideoMonitor.x;
1751 for (j=y1; j<=y2; j++) {
1752 p = &the_buffer[j * bytes_per_row];
1753 p2 = &the_buffer_copy[j * bytes_per_row];
1754 for (i=0; i<(x1>>3); i++) {
1755 if (*p != *p2) {
1756 x1 = i << 3;
1757 break;
1758 }
1759 p++; p2++;
1760 }
1761 }
1762 x2 = x1;
1763 for (j=y1; j<=y2; j++) {
1764 p = &the_buffer[j * bytes_per_row];
1765 p2 = &the_buffer_copy[j * bytes_per_row];
1766 p += bytes_per_row;
1767 p2 += bytes_per_row;
1768 for (i=(VideoMonitor.x>>3); i>(x2>>3); i--) {
1769 p--; p2--;
1770 if (*p != *p2) {
1771 x2 = i << 3;
1772 break;
1773 }
1774 }
1775 }
1776 wide = x2 - x1;
1777
1778 // Update copy of the_buffer
1779 if (high && wide) {
1780 for (j=y1; j<=y2; j++) {
1781 i = j * bytes_per_row + (x1 >> 3);
1782 memcpy(the_buffer_copy + i, the_buffer + i, wide >> 3);
1783 }
1784 }
1785
1786 } else {
1787 x1 = VideoMonitor.x;
1788 for (j=y1; j<=y2; j++) {
1789 p = &the_buffer[j * bytes_per_row];
1790 p2 = &the_buffer_copy[j * bytes_per_row];
1791 for (i=0; i<x1*bytes_per_pixel; i++) {
1792 if (*p != *p2) {
1793 x1 = i / bytes_per_pixel;
1794 break;
1795 }
1796 p++; p2++;
1797 }
1798 }
1799 x2 = x1;
1800 for (j=y1; j<=y2; j++) {
1801 p = &the_buffer[j * bytes_per_row];
1802 p2 = &the_buffer_copy[j * bytes_per_row];
1803 p += bytes_per_row;
1804 p2 += bytes_per_row;
1805 for (i=VideoMonitor.x*bytes_per_pixel; i>x2*bytes_per_pixel; i--) {
1806 p--;
1807 p2--;
1808 if (*p != *p2) {
1809 x2 = i / bytes_per_pixel;
1810 break;
1811 }
1812 }
1813 }
1814 wide = x2 - x1;
1815
1816 // Update copy of the_buffer
1817 if (high && wide) {
1818 for (j=y1; j<=y2; j++) {
1819 i = j * bytes_per_row + x1 * bytes_per_pixel;
1820 memcpy(the_buffer_copy + i, the_buffer + i, bytes_per_pixel * wide);
1821 }
1822 }
1823 }
1824 }
1825
1826 // Refresh display
1827 if (high && wide) {
1828 if (have_shm)
1829 XShmPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high, 0);
1830 else
1831 XPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high);
1832 }
1833 }
1834
1835
1836 /*
1837 * Screen refresh functions
1838 */
1839
1840 // The specialisations hereunder are meant to enable VOSF with DGA in direct
1841 // addressing mode in case the address spaces (RAM, ROM, FrameBuffer) could
1842 // not get mapped correctly with respect to the predetermined host frame
1843 // buffer base address.
1844 //
1845 // Hmm, in other words, when in direct addressing mode and DGA is requested,
1846 // we first try to "triple allocate" the address spaces according to the real
1847 // host frame buffer address. Then, if it fails, we will use a temporary
1848 // frame buffer thus making the real host frame buffer updated when pages
1849 // of the temp frame buffer are altered.
1850 //
1851 // As a side effect, a little speed gain in screen updates could be noticed
1852 // for other modes than DGA.
1853 //
1854 // The following two functions below are inline so that a clever compiler
1855 // could specialise the code according to the current screen depth and
1856 // display type. A more clever compiler would the job by itself though...
1857 // (update_display_vosf is inlined as well)
1858
1859 static inline void possibly_quit_dga_mode()
1860 {
1861 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1862 // Quit DGA mode if requested
1863 if (quit_full_screen) {
1864 quit_full_screen = false;
1865 #ifdef ENABLE_XF86_DGA
1866 XF86DGADirectVideo(x_display, screen, 0);
1867 #endif
1868 XUngrabPointer(x_display, CurrentTime);
1869 XUngrabKeyboard(x_display, CurrentTime);
1870 XUnmapWindow(x_display, the_win);
1871 XSync(x_display, false);
1872 }
1873 #endif
1874 }
1875
1876 static inline void handle_palette_changes(int depth, int display_type)
1877 {
1878 #ifdef HAVE_PTHREADS
1879 pthread_mutex_lock(&palette_lock);
1880 #endif
1881 if (palette_changed) {
1882 palette_changed = false;
1883 if (depth == 8) {
1884 XStoreColors(x_display, cmap[0], palette, 256);
1885 XStoreColors(x_display, cmap[1], palette, 256);
1886
1887 #ifdef ENABLE_XF86_DGA
1888 if (display_type == DISPLAY_DGA) {
1889 current_dga_cmap ^= 1;
1890 XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
1891 }
1892 #endif
1893 }
1894 }
1895 #ifdef HAVE_PTHREADS
1896 pthread_mutex_unlock(&palette_lock);
1897 #endif
1898 }
1899
1900 static void video_refresh_dga(void)
1901 {
1902 // Quit DGA mode if requested
1903 possibly_quit_dga_mode();
1904
1905 // Handle X events
1906 handle_events();
1907
1908 // Handle palette changes
1909 handle_palette_changes(depth, DISPLAY_DGA);
1910 }
1911
1912 #if REAL_ADDRESSING || DIRECT_ADDRESSING
1913 static void video_refresh_dga_vosf(void)
1914 {
1915 // Quit DGA mode if requested
1916 possibly_quit_dga_mode();
1917
1918 // Handle X events
1919 handle_events();
1920
1921 // Handle palette changes
1922 handle_palette_changes(depth, DISPLAY_DGA);
1923
1924 // Update display (VOSF variant)
1925 static int tick_counter = 0;
1926 if (++tick_counter >= frame_skip) {
1927 tick_counter = 0;
1928 #ifdef HAVE_PTHREADS
1929 pthread_mutex_lock(&Screen_draw_lock);
1930 #endif
1931 update_display_dga_vosf();
1932 #ifdef HAVE_PTHREADS
1933 pthread_mutex_unlock(&Screen_draw_lock);
1934 #endif
1935 }
1936 }
1937 #endif
1938
1939 #ifdef ENABLE_VOSF
1940 static void video_refresh_window_vosf(void)
1941 {
1942 // Quit DGA mode if requested
1943 possibly_quit_dga_mode();
1944
1945 // Handle X events
1946 handle_events();
1947
1948 // Handle palette changes
1949 handle_palette_changes(depth, DISPLAY_WINDOW);
1950
1951 // Update display (VOSF variant)
1952 static int tick_counter = 0;
1953 if (++tick_counter >= frame_skip) {
1954 tick_counter = 0;
1955 #ifdef HAVE_PTHREADS
1956 pthread_mutex_lock(&Screen_draw_lock);
1957 #endif
1958 update_display_window_vosf();
1959 #ifdef HAVE_PTHREADS
1960 pthread_mutex_unlock(&Screen_draw_lock);
1961 #endif
1962 }
1963 }
1964 #endif
1965
1966 static void video_refresh_window_static(void)
1967 {
1968 // Handle X events
1969 handle_events();
1970
1971 // Handle_palette changes
1972 handle_palette_changes(depth, DISPLAY_WINDOW);
1973
1974 // Update display (static variant)
1975 static int tick_counter = 0;
1976 if (++tick_counter >= frame_skip) {
1977 tick_counter = 0;
1978 update_display_static();
1979 }
1980 }
1981
1982 static void video_refresh_window_dynamic(void)
1983 {
1984 // Handle X events
1985 handle_events();
1986
1987 // Handle_palette changes
1988 handle_palette_changes(depth, DISPLAY_WINDOW);
1989
1990 // Update display (dynamic variant)
1991 static int tick_counter = 0;
1992 tick_counter++;
1993 update_display_dynamic(tick_counter);
1994 }
1995
1996
1997 /*
1998 * Thread for screen refresh, input handling etc.
1999 */
2000
2001 void VideoRefreshInit(void)
2002 {
2003 // TODO: set up specialised 8bpp VideoRefresh handlers ?
2004 if (display_type == DISPLAY_DGA) {
2005 #if REAL_ADDRESSING || DIRECT_ADDRESSING
2006 if (use_vosf)
2007 video_refresh = video_refresh_dga_vosf;
2008 else
2009 #endif
2010 video_refresh = video_refresh_dga;
2011 }
2012 else {
2013 #ifdef ENABLE_VOSF
2014 if (use_vosf)
2015 video_refresh = video_refresh_window_vosf;
2016 else
2017 #endif
2018 if (frame_skip == 0)
2019 video_refresh = video_refresh_window_dynamic;
2020 else
2021 video_refresh = video_refresh_window_static;
2022 }
2023 }
2024
2025 void VideoRefresh(void)
2026 {
2027 // TODO: make main_unix/VideoRefresh call directly video_refresh() ?
2028 video_refresh();
2029 }
2030
2031 #if 0
2032 void VideoRefresh(void)
2033 {
2034 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
2035 // Quit DGA mode if requested
2036 if (quit_full_screen) {
2037 quit_full_screen = false;
2038 if (display_type == DISPLAY_DGA) {
2039 #ifdef ENABLE_XF86_DGA
2040 XF86DGADirectVideo(x_display, screen, 0);
2041 #endif
2042 XUngrabPointer(x_display, CurrentTime);
2043 XUngrabKeyboard(x_display, CurrentTime);
2044 XUnmapWindow(x_display, the_win);
2045 XSync(x_display, false);
2046 }
2047 }
2048 #endif
2049
2050 // Handle X events
2051 handle_events();
2052
2053 // Handle palette changes
2054 #ifdef HAVE_PTHREADS
2055 pthread_mutex_lock(&palette_lock);
2056 #endif
2057 if (palette_changed) {
2058 palette_changed = false;
2059 if (depth == 8) {
2060 XStoreColors(x_display, cmap[0], palette, 256);
2061 XStoreColors(x_display, cmap[1], palette, 256);
2062
2063 #ifdef ENABLE_XF86_DGA
2064 if (display_type == DISPLAY_DGA) {
2065 current_dga_cmap ^= 1;
2066 XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
2067 }
2068 #endif
2069 }
2070 }
2071 #ifdef HAVE_PTHREADS
2072 pthread_mutex_unlock(&palette_lock);
2073 #endif
2074
2075 // In window mode, update display
2076 static int tick_counter = 0;
2077 if (display_type == DISPLAY_WINDOW) {
2078 tick_counter++;
2079 if (frame_skip == 0)
2080 update_display_dynamic(tick_counter);
2081 else if (tick_counter >= frame_skip) {
2082 tick_counter = 0;
2083 update_display_static();
2084 }
2085 }
2086 }
2087 #endif
2088
2089 #ifdef HAVE_PTHREADS
2090 static void *redraw_func(void *arg)
2091 {
2092 uint64 start = GetTicks_usec();
2093 int64 ticks = 0;
2094 uint64 next = GetTicks_usec();
2095 while (!redraw_thread_cancel) {
2096 // VideoRefresh();
2097 video_refresh();
2098 next += 16667;
2099 int64 delay = next - GetTicks_usec();
2100 if (delay > 0)
2101 Delay_usec(delay);
2102 else if (delay < -16667)
2103 next = GetTicks_usec();
2104 ticks++;
2105 }
2106 uint64 end = GetTicks_usec();
2107 printf("%Ld ticks in %Ld usec = %Ld ticks/sec\n", ticks, end - start, (end - start) / ticks);
2108 return NULL;
2109 }
2110 #endif