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root/cebix/BasiliskII/src/Unix/video_x.cpp
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Comparing BasiliskII/src/Unix/video_x.cpp (file contents):
Revision 1.30 by cebix, 2000-11-03T18:27:55Z vs.
Revision 1.45 by cebix, 2001-06-30T20:18:36Z

# Line 1 | Line 1
1   /*
2   *  video_x.cpp - Video/graphics emulation, X11 specific stuff
3   *
4 < *  Basilisk II (C) 1997-2000 Christian Bauer
4 > *  Basilisk II (C) 1997-2001 Christian Bauer
5   *
6   *  This program is free software; you can redistribute it and/or modify
7   *  it under the terms of the GNU General Public License as published by
# Line 52 | Line 52
52   # include <sys/mman.h>
53   #endif
54  
55 #ifdef ENABLE_VOSF
56 # include <unistd.h>
57 # include <signal.h>
58 # include <fcntl.h>
59 # include <sys/mman.h>
60 #endif
61
55   #include "cpu_emulation.h"
56   #include "main.h"
57   #include "adb.h"
# Line 79 | Line 72 | enum {
72  
73   // Constants
74   const char KEYCODE_FILE_NAME[] = DATADIR "/keycodes";
75 < const char FBDEVICES_FILE_NAME[] = DATADIR "/fbdevices";
75 >
76 > static const int win_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | ExposureMask | StructureNotifyMask;
77 > static const int dga_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask;
78  
79  
80   // Global variables
81   static int32 frame_skip;                                                        // Prefs items
82 < static int16 mouse_wheel_mode = 1;
83 < static int16 mouse_wheel_lines = 3;
82 > static int16 mouse_wheel_mode;
83 > static int16 mouse_wheel_lines;
84  
85   static int display_type = DISPLAY_WINDOW;                       // See enum above
86   static bool local_X11;                                                          // Flag: X server running on local machine?
87 < static uint8 *the_buffer;                                                       // Mac frame buffer
87 > static uint8 *the_buffer = NULL;                                        // Mac frame buffer (where MacOS draws into)
88 > static uint8 *the_buffer_copy = NULL;                           // Copy of Mac frame buffer (for refreshed modes)
89  
94 #ifdef HAVE_PTHREADS
90   static bool redraw_thread_active = false;                       // Flag: Redraw thread installed
91 < static volatile bool redraw_thread_cancel = false;      // Flag: Cancel Redraw thread
91 > #ifdef HAVE_PTHREADS
92 > static volatile bool redraw_thread_cancel;                      // Flag: Cancel Redraw thread
93   static pthread_t redraw_thread;                                         // Redraw thread
94   #endif
95  
96   static bool has_dga = false;                                            // Flag: Video DGA capable
97   static bool has_vidmode = false;                                        // Flag: VidMode extension available
98  
99 + #ifdef ENABLE_VOSF
100 + static bool use_vosf = true;                                            // Flag: VOSF enabled
101 + #else
102 + static const bool use_vosf = false;                                     // VOSF not possible
103 + #endif
104 +
105   static bool ctrl_down = false;                                          // Flag: Ctrl key pressed
106   static bool caps_on = false;                                            // Flag: Caps Lock on
107   static bool quit_full_screen = false;                           // Flag: DGA close requested from redraw thread
# Line 114 | Line 116 | static int keycode_table[256];                                         // X
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
118 < static Window rootwin, the_win;                                         // Root window and our window
119 > static Window rootwin;                                                          // 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
122 > static Colormap cmap[2] = {0, 0};                                       // Colormaps for indexed modes (DGA needs two of them)
123   static XColor black, white;
124   static unsigned long black_pixel, white_pixel;
125   static int eventmask;
125 static const int win_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | EnterWindowMask | ExposureMask | StructureNotifyMask;
126 static const int dga_eventmask = KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask;
127 static Atom WM_DELETE_WINDOW = (Atom)0;
126  
127 < static XColor palette[256];                                                     // Color palette for 8-bit mode
127 > static XColor palette[256];                                                     // Color palette for indexed modes
128   static bool palette_changed = false;                            // Flag: Palette changed, redraw thread must set new colors
129 +
130 + #ifdef ENABLE_FBDEV_DGA
131 + static int fbdev_fd = -1;
132 + #endif
133 +
134 + #ifdef ENABLE_XF86_VIDMODE
135 + static XF86VidModeModeInfo **x_video_modes = NULL;      // Array of all available modes
136 + static int num_x_video_modes;
137 + #endif
138 +
139 + // Mutex to protect palette
140   #ifdef HAVE_PTHREADS
141 < static pthread_mutex_t palette_lock = PTHREAD_MUTEX_INITIALIZER;        // Mutex to protect palette
141 > static pthread_mutex_t palette_lock = PTHREAD_MUTEX_INITIALIZER;
142   #define LOCK_PALETTE pthread_mutex_lock(&palette_lock)
143   #define UNLOCK_PALETTE pthread_mutex_unlock(&palette_lock)
144   #else
# Line 137 | Line 146 | static pthread_mutex_t palette_lock = PT
146   #define UNLOCK_PALETTE
147   #endif
148  
149 < // Variables for window mode
141 < static GC the_gc;
142 < static XImage *img = NULL;
143 < static XShmSegmentInfo shminfo;
144 < static Cursor mac_cursor;
145 < static uint8 *the_buffer_copy = NULL;                           // Copy of Mac frame buffer
146 < static bool have_shm = false;                                           // Flag: SHM extensions available
147 < static bool updt_box[17][17];                                           // Flag for Update
148 < static int nr_boxes;
149 < static const int sm_uptd[] = {4,1,6,3,0,5,2,7};
150 < static int sm_no_boxes[] = {1,8,32,64,128,300};
151 <
152 < // Variables for XF86 DGA mode
153 < static int current_dga_cmap;                                            // Number (0 or 1) of currently installed DGA colormap
154 < static Window suspend_win;                                                      // "Suspend" window
155 < static void *fb_save = NULL;                                            // Saved frame buffer for suspend
149 > // Mutex to protect frame buffer
150   #ifdef HAVE_PTHREADS
151 < static pthread_mutex_t frame_buffer_lock = PTHREAD_MUTEX_INITIALIZER;   // Mutex to protect frame buffer
151 > static pthread_mutex_t frame_buffer_lock = PTHREAD_MUTEX_INITIALIZER;
152   #define LOCK_FRAME_BUFFER pthread_mutex_lock(&frame_buffer_lock);
153   #define UNLOCK_FRAME_BUFFER pthread_mutex_unlock(&frame_buffer_lock);
154   #else
# Line 162 | Line 156 | static pthread_mutex_t frame_buffer_lock
156   #define UNLOCK_FRAME_BUFFER
157   #endif
158  
159 < // Variables for fbdev DGA mode
160 < const char FBDEVICE_FILE_NAME[] = "/dev/fb";
161 < static int fbdev_fd;
162 <
163 < #ifdef ENABLE_XF86_VIDMODE
170 < // Variables for XF86 VidMode support
171 < static XF86VidModeModeInfo **x_video_modes;                     // Array of all available modes
172 < static int num_x_video_modes;
173 < #endif
174 <
175 < #ifdef ENABLE_VOSF
176 < static bool use_vosf = true;                                            // Flag: VOSF enabled
177 < #else
178 < static const bool use_vosf = false;                                     // Flag: VOSF enabled
179 < #endif
180 <
181 < #ifdef ENABLE_VOSF
182 < // Variables for Video on SEGV support (taken from the Win32 port)
183 < static uint8 *the_host_buffer;                                          // Host frame buffer in VOSF mode
184 < static uint32 the_buffer_size;                                          // Size of allocated the_buffer
185 <
186 < struct ScreenPageInfo {
187 <    int top, bottom;                    // Mapping between this virtual page and Mac scanlines
188 < };
189 <
190 < struct ScreenInfo {
191 <    uint32 memBase;                             // Real start address
192 <    uint32 memStart;                    // Start address aligned to page boundary
193 <    uint32 memEnd;                              // Address of one-past-the-end of the screen
194 <    uint32 memLength;                   // Length of the memory addressed by the screen pages
195 <    
196 <    uint32 pageSize;                    // Size of a page
197 <    int pageBits;                               // Shift count to get the page number
198 <    uint32 pageCount;                   // Number of pages allocated to the screen
199 <    
200 <    uint8 * dirtyPages;                 // Table of flags set if page was altered
201 <    ScreenPageInfo * pageInfo;  // Table of mappings page -> Mac scanlines
202 < };
203 <
204 < static ScreenInfo mainBuffer;
205 <
206 < #define PFLAG_SET(page)                 mainBuffer.dirtyPages[page] = 1
207 < #define PFLAG_CLEAR(page)               mainBuffer.dirtyPages[page] = 0
208 < #define PFLAG_ISSET(page)               mainBuffer.dirtyPages[page]
209 < #define PFLAG_ISCLEAR(page)             (mainBuffer.dirtyPages[page] == 0)
210 < #ifdef UNALIGNED_PROFITABLE
211 < # define PFLAG_ISCLEAR_4(page)  (*((uint32 *)(mainBuffer.dirtyPages + page)) == 0)
212 < #else
213 < # define PFLAG_ISCLEAR_4(page)  \
214 <                (mainBuffer.dirtyPages[page  ] == 0) \
215 <        &&      (mainBuffer.dirtyPages[page+1] == 0) \
216 <        &&      (mainBuffer.dirtyPages[page+2] == 0) \
217 <        &&      (mainBuffer.dirtyPages[page+3] == 0)
218 < #endif
219 < #define PFLAG_CLEAR_ALL                 memset(mainBuffer.dirtyPages, 0, mainBuffer.pageCount)
220 < #define PFLAG_SET_ALL                   memset(mainBuffer.dirtyPages, 1, mainBuffer.pageCount)
221 <
222 < static int zero_fd = -1;
223 < static bool Screen_fault_handler_init();
224 < static struct sigaction vosf_sa;
225 <
226 < #ifdef HAVE_PTHREADS
227 < static pthread_mutex_t vosf_lock = PTHREAD_MUTEX_INITIALIZER;   // Mutex to protect frame buffer (dirtyPages in fact)
228 < #define LOCK_VOSF pthread_mutex_lock(&vosf_lock);
229 < #define UNLOCK_VOSF pthread_mutex_unlock(&vosf_lock);
230 < #else
231 < #define LOCK_VOSF
232 < #define UNLOCK_VOSF
233 < #endif
234 <
235 < static int log_base_2(uint32 x)
236 < {
237 <        uint32 mask = 0x80000000;
238 <        int l = 31;
239 <        while (l >= 0 && (x & mask) == 0) {
240 <                mask >>= 1;
241 <                l--;
242 <        }
243 <        return l;
244 < }
245 <
246 < #endif
159 > // Variables for non-VOSF incremental refresh
160 > static const int sm_uptd[] = {4,1,6,3,0,5,2,7};
161 > static int sm_no_boxes[] = {1,8,32,64,128,300};
162 > static bool updt_box[17][17];
163 > static int nr_boxes;
164  
165 < // VideoRefresh function
166 < void VideoRefreshInit(void);
165 > // Video refresh function
166 > static void VideoRefreshInit(void);
167   static void (*video_refresh)(void);
168  
169 +
170   // Prototypes
171   static void *redraw_func(void *arg);
172   static int event2keycode(XKeyEvent &ev);
173  
256
174   // From main_unix.cpp
175   extern char *x_display_name;
176   extern Display *x_display;
# Line 261 | Line 178 | extern Display *x_display;
178   // From sys_unix.cpp
179   extern void SysMountFirstFloppy(void);
180  
264 #ifdef ENABLE_VOSF
265 # include "video_vosf.h"
266 #endif
267
181  
182   /*
183 < *  Initialization
183 > *  Utility functions
184   */
185  
186 < // Set VideoMonitor according to video mode
187 < void set_video_monitor(int width, int height, int bytes_per_row, bool native_byte_order)
186 > // Add mode to list of supported modes
187 > static void add_mode(uint32 width, uint32 height, uint32 resolution_id, uint32 bytes_per_row, video_depth depth)
188 > {
189 >        video_mode mode;
190 >        mode.x = width;
191 >        mode.y = height;
192 >        mode.resolution_id = resolution_id;
193 >        mode.bytes_per_row = bytes_per_row;
194 >        mode.depth = depth;
195 >        VideoModes.push_back(mode);
196 > }
197 >
198 > // Set Mac frame layout and base address (uses the_buffer/MacFrameBaseMac)
199 > static void set_mac_frame_buffer(video_depth depth, bool native_byte_order)
200   {
201   #if !REAL_ADDRESSING && !DIRECT_ADDRESSING
202          int layout = FLAYOUT_DIRECT;
203 <        switch (depth) {
204 <                case 1:
205 <                        layout = FLAYOUT_DIRECT;
206 <                        break;
282 <                case 8:
283 <                        layout = FLAYOUT_DIRECT;
284 <                        break;
285 <                case 15:
286 <                        layout = FLAYOUT_HOST_555;
287 <                        break;
288 <                case 16:
289 <                        layout = FLAYOUT_HOST_565;
290 <                        break;
291 <                case 24:
292 <                case 32:
293 <                        layout = FLAYOUT_HOST_888;
294 <                        break;
295 <        }
203 >        if (depth == VDEPTH_16BIT)
204 >                layout = (xdepth == 15) ? FLAYOUT_HOST_555 : FLAYOUT_HOST_565;
205 >        else if (depth == VDEPTH_32BIT)
206 >                layour = (xdepth == 24) ? FLAYOUT_HOST_888 : FLAYOUT_DIRECT;
207          if (native_byte_order)
208                  MacFrameLayout = layout;
209          else
210                  MacFrameLayout = FLAYOUT_DIRECT;
211 +        VideoMonitor.mac_frame_base = MacFrameBaseMac;
212 +
213 +        // Set variables used by UAE memory banking
214 +        MacFrameBaseHost = the_buffer;
215 +        MacFrameSize = VideoMonitor.mode.bytes_per_row * VideoMonitor.mode.y;
216 +        InitFrameBufferMapping();
217 + #else
218 +        VideoMonitor.mac_frame_base = Host2MacAddr(the_buffer);
219 +        D(bug("Host frame buffer = %p, ", the_buffer));
220   #endif
221 <        switch (depth) {
302 <                case 1:
303 <                        VideoMonitor.mode = VMODE_1BIT;
304 <                        break;
305 <                case 8:
306 <                        VideoMonitor.mode = VMODE_8BIT;
307 <                        break;
308 <                case 15:
309 <                        VideoMonitor.mode = VMODE_16BIT;
310 <                        break;
311 <                case 16:
312 <                        VideoMonitor.mode = VMODE_16BIT;
313 <                        break;
314 <                case 24:
315 <                case 32:
316 <                        VideoMonitor.mode = VMODE_32BIT;
317 <                        break;
318 <        }
319 <        VideoMonitor.x = width;
320 <        VideoMonitor.y = height;
321 <        VideoMonitor.bytes_per_row = bytes_per_row;
221 >        D(bug("VideoMonitor.mac_frame_base = %08x\n", VideoMonitor.mac_frame_base));
222   }
223  
224   // Set window name and class
# Line 334 | Line 234 | static void set_window_name(Window w, in
234                  hints->res_name = "BasiliskII";
235                  hints->res_class = "BasiliskII";
236                  XSetClassHint(x_display, w, hints);
237 <                XFree((char *)hints);
237 >                XFree(hints);
238          }
239   }
240  
# Line 347 | Line 247 | static void set_window_focus(Window w)
247                  hints->initial_state = NormalState;
248                  hints->flags = InputHint | StateHint;
249                  XSetWMHints(x_display, w, hints);
250 <                XFree((char *)hints);
250 >                XFree(hints);
251          }
252   }
253  
254   // Set WM_DELETE_WINDOW protocol on window (preventing it from being destroyed by the WM when clicking on the "close" widget)
255 + static Atom WM_DELETE_WINDOW = (Atom)0;
256   static void set_window_delete_protocol(Window w)
257   {
258          WM_DELETE_WINDOW = XInternAtom(x_display, "WM_DELETE_WINDOW", false);
# Line 388 | Line 289 | static int error_handler(Display *d, XEr
289                  return old_error_handler(d, e);
290   }
291  
292 < // Init window mode
293 < static bool init_window(int width, int height)
292 >
293 > /*
294 > *  Display "driver" classes
295 > */
296 >
297 > class driver_base {
298 > public:
299 >        driver_base();
300 >        virtual ~driver_base();
301 >
302 >        virtual void update_palette(void);
303 >        virtual void suspend(void) {}
304 >        virtual void resume(void) {}
305 >
306 > public:
307 >        bool init_ok;   // Initialization succeeded (we can't use exceptions because of -fomit-frame-pointer)
308 >        Window w;               // The window we draw into
309 > };
310 >
311 > class driver_window;
312 > static void update_display_window_vosf(driver_window *drv);
313 > static void update_display_dynamic(int ticker, driver_window *drv);
314 > static void update_display_static(driver_window *drv);
315 >
316 > class driver_window : public driver_base {
317 >        friend void update_display_window_vosf(driver_window *drv);
318 >        friend void update_display_dynamic(int ticker, driver_window *drv);
319 >        friend void update_display_static(driver_window *drv);
320 >
321 > public:
322 >        driver_window(const video_mode &mode);
323 >        ~driver_window();
324 >
325 > private:
326 >        GC gc;
327 >        XImage *img;
328 >        bool have_shm;                          // Flag: SHM extensions available
329 >        XShmSegmentInfo shminfo;
330 >        Cursor mac_cursor;
331 > };
332 >
333 > static driver_base *drv = NULL; // Pointer to currently used driver object
334 >
335 > #ifdef ENABLE_VOSF
336 > # include "video_vosf.h"
337 > #endif
338 >
339 > driver_base::driver_base()
340 > : init_ok(false), w(0)
341 > {
342 >        the_buffer = NULL;
343 >        the_buffer_copy = NULL;
344 > }
345 >
346 > driver_base::~driver_base()
347 > {
348 >        if (w) {
349 >                XUnmapWindow(x_display, w);
350 >                wait_unmapped(w);
351 >                XDestroyWindow(x_display, w);
352 >        }
353 >
354 >        XFlush(x_display);
355 >        XSync(x_display, false);
356 >
357 >        // Free frame buffer(s)
358 >        if (!use_vosf) {
359 >                if (the_buffer) {
360 >                        free(the_buffer);
361 >                        the_buffer = NULL;
362 >                }
363 >                if (the_buffer_copy) {
364 >                        free(the_buffer_copy);
365 >                        the_buffer_copy = NULL;
366 >                }
367 >        }
368 > #ifdef ENABLE_VOSF
369 >        else {
370 >                if (the_buffer != (uint8 *)VM_MAP_FAILED) {
371 >                        vm_release(the_buffer, the_buffer_size);
372 >                        the_buffer = NULL;
373 >                }
374 >                if (the_buffer_copy != (uint8 *)VM_MAP_FAILED) {
375 >                        vm_release(the_buffer_copy, the_buffer_size);
376 >                        the_buffer_copy = NULL;
377 >                }
378 >        }
379 > #endif
380 > }
381 >
382 > // Palette has changed
383 > void driver_base::update_palette(void)
384 > {
385 >        if (cmap[0] && cmap[1]) {
386 >                int num = 256;
387 >                if (xdepth == 15)
388 >                        num = 32;
389 >                else if (xdepth == 16)
390 >                        num = 64;
391 >                XStoreColors(x_display, cmap[0], palette, num);
392 >                XStoreColors(x_display, cmap[1], palette, num);
393 >        }
394 >        XSync(x_display, false);
395 > }
396 >
397 >
398 > /*
399 > *  Windowed display driver
400 > */
401 >
402 > // Open display
403 > driver_window::driver_window(const video_mode &mode)
404 > : gc(0), img(NULL), have_shm(false), mac_cursor(0)
405   {
406 +        int width = mode.x, height = mode.y;
407          int aligned_width = (width + 15) & ~15;
408          int aligned_height = (height + 15) & ~15;
409  
410          // Set absolute mouse mode
411          ADBSetRelMouseMode(false);
412  
400        // Read frame skip prefs
401        frame_skip = PrefsFindInt32("frameskip");
402
413          // Create window
414          XSetWindowAttributes wattr;
415          wattr.event_mask = eventmask = win_eventmask;
416          wattr.background_pixel = black_pixel;
417          wattr.colormap = cmap[0];
418 <
419 <        the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
410 <                InputOutput, vis, CWEventMask | CWBackPixel | (depth == 8 ? CWColormap : 0), &wattr);
418 >        w = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
419 >                InputOutput, vis, CWEventMask | CWBackPixel | ((mode.depth == VDEPTH_1BIT || cmap[0] == 0) ? 0 : CWColormap), &wattr);
420  
421          // Set window name/class
422 <        set_window_name(the_win, STR_WINDOW_TITLE);
422 >        set_window_name(w, STR_WINDOW_TITLE);
423  
424          // Indicate that we want keyboard input
425 <        set_window_focus(the_win);
425 >        set_window_focus(w);
426  
427          // Set delete protocol property
428 <        set_window_delete_protocol(the_win);
428 >        set_window_delete_protocol(w);
429  
430          // Make window unresizable
431          {
# Line 427 | Line 436 | static bool init_window(int width, int h
436                          hints->min_height = height;
437                          hints->max_height = height;
438                          hints->flags = PMinSize | PMaxSize;
439 <                        XSetWMNormalHints(x_display, the_win, hints);
440 <                        XFree((char *)hints);
439 >                        XSetWMNormalHints(x_display, w, hints);
440 >                        XFree(hints);
441                  }
442          }
443          
444          // Show window
445 <        XMapWindow(x_display, the_win);
446 <        wait_mapped(the_win);
445 >        XMapWindow(x_display, w);
446 >        wait_mapped(w);
447  
448          // Try to create and attach SHM image
449 <        have_shm = false;
441 <        if (depth != 1 && local_X11 && XShmQueryExtension(x_display)) {
449 >        if (local_X11 && XShmQueryExtension(x_display)) {
450  
451                  // Create SHM image ("height + 2" for safety)
452 <                img = XShmCreateImage(x_display, vis, depth, depth == 1 ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
452 >                img = XShmCreateImage(x_display, vis, mode.depth == VDEPTH_1BIT ? 1 : xdepth, mode.depth == VDEPTH_1BIT ? XYBitmap : ZPixmap, 0, &shminfo, width, height);
453                  shminfo.shmid = shmget(IPC_PRIVATE, (aligned_height + 2) * img->bytes_per_line, IPC_CREAT | 0777);
454                  the_buffer_copy = (uint8 *)shmat(shminfo.shmid, 0, 0);
455                  shminfo.shmaddr = img->data = (char *)the_buffer_copy;
# Line 465 | Line 473 | static bool init_window(int width, int h
473          
474          // Create normal X image if SHM doesn't work ("height + 2" for safety)
475          if (!have_shm) {
476 <                int bytes_per_row = aligned_width;
469 <                switch (depth) {
470 <                        case 1:
471 <                                bytes_per_row /= 8;
472 <                                break;
473 <                        case 15:
474 <                        case 16:
475 <                                bytes_per_row *= 2;
476 <                                break;
477 <                        case 24:
478 <                        case 32:
479 <                                bytes_per_row *= 4;
480 <                                break;
481 <                }
476 >                int bytes_per_row = TrivialBytesPerRow(aligned_width, mode.depth);
477                  the_buffer_copy = (uint8 *)malloc((aligned_height + 2) * bytes_per_row);
478 <                img = XCreateImage(x_display, vis, depth, depth == 1 ? XYBitmap : ZPixmap, 0, (char *)the_buffer_copy, aligned_width, aligned_height, 32, bytes_per_row);
478 >                img = XCreateImage(x_display, vis, mode.depth == VDEPTH_1BIT ? 1 : xdepth, mode.depth == VDEPTH_1BIT ? XYBitmap : ZPixmap, 0, (char *)the_buffer_copy, aligned_width, aligned_height, 32, bytes_per_row);
479          }
480  
481          // 1-Bit mode is big-endian
482 <        if (depth == 1) {
482 >        if (mode.depth == VDEPTH_1BIT) {
483                  img->byte_order = MSBFirst;
484                  img->bitmap_bit_order = MSBFirst;
485          }
486  
487   #ifdef ENABLE_VOSF
488 <        // Allocate a page-aligned chunk of memory for frame buffer
494 <        the_buffer_size = align_on_page_boundary((aligned_height + 2) * img->bytes_per_line);
488 >        // Allocate memory for frame buffer (SIZE is extended to page-boundary)
489          the_host_buffer = the_buffer_copy;
490 <        
491 <        the_buffer_copy = (uint8 *)allocate_framebuffer(the_buffer_size);
492 <        memset(the_buffer_copy, 0, the_buffer_size);
499 <        
500 <        the_buffer = (uint8 *)allocate_framebuffer(the_buffer_size);
501 <        memset(the_buffer, 0, the_buffer_size);
490 >        the_buffer_size = page_extend((aligned_height + 2) * img->bytes_per_line);
491 >        the_buffer_copy = (uint8 *)vm_acquire(the_buffer_size);
492 >        the_buffer = (uint8 *)vm_acquire(the_buffer_size);
493   #else
494          // Allocate memory for frame buffer
495          the_buffer = (uint8 *)malloc((aligned_height + 2) * img->bytes_per_line);
496   #endif
497  
498          // Create GC
499 <        the_gc = XCreateGC(x_display, the_win, 0, 0);
500 <        XSetState(x_display, the_gc, black_pixel, white_pixel, GXcopy, AllPlanes);
499 >        gc = XCreateGC(x_display, w, 0, 0);
500 >        XSetState(x_display, gc, black_pixel, white_pixel, GXcopy, AllPlanes);
501  
502          // Create no_cursor
503          mac_cursor = XCreatePixmapCursor(x_display,
504 <           XCreatePixmap(x_display, the_win, 1, 1, 1),
505 <           XCreatePixmap(x_display, the_win, 1, 1, 1),
504 >           XCreatePixmap(x_display, w, 1, 1, 1),
505 >           XCreatePixmap(x_display, w, 1, 1, 1),
506             &black, &white, 0, 0);
507 <        XDefineCursor(x_display, the_win, mac_cursor);
507 >        XDefineCursor(x_display, w, mac_cursor);
508  
509 <        // Set VideoMonitor
509 >        // Init blitting routines
510          bool native_byte_order;
511   #ifdef WORDS_BIGENDIAN
512 <        native_byte_order = (img->bitmap_bit_order == MSBFirst);
512 >        native_byte_order = (XImageByteOrder(x_display) == MSBFirst);
513   #else
514 <        native_byte_order = (img->bitmap_bit_order == LSBFirst);
514 >        native_byte_order = (XImageByteOrder(x_display) == LSBFirst);
515   #endif
516   #ifdef ENABLE_VOSF
517 <        do_update_framebuffer = GET_FBCOPY_FUNC(depth, native_byte_order, DISPLAY_WINDOW);
517 >        Screen_blitter_init(&visualInfo, native_byte_order);
518   #endif
519 <        set_video_monitor(width, height, img->bytes_per_line, native_byte_order);
520 <        
521 < #if REAL_ADDRESSING || DIRECT_ADDRESSING
522 <        VideoMonitor.mac_frame_base = Host2MacAddr(the_buffer);
523 < #else
524 <        VideoMonitor.mac_frame_base = MacFrameBaseMac;
519 >
520 >        // Set VideoMonitor
521 >        VideoMonitor.mode = mode;
522 >        set_mac_frame_buffer(mode.depth, native_byte_order);
523 >
524 >        // Everything went well
525 >        init_ok = true;
526 > }
527 >
528 > // Close display
529 > driver_window::~driver_window()
530 > {
531 >        if (img)
532 >                XDestroyImage(img);
533 >        if (have_shm) {
534 >                XShmDetach(x_display, &shminfo);
535 >                the_buffer_copy = NULL; // don't free() in driver_base dtor
536 >        }
537 >        if (gc)
538 >                XFreeGC(x_display, gc);
539 > }
540 >
541 >
542 > #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
543 > /*
544 > *  DGA display driver base class
545 > */
546 >
547 > class driver_dga : public driver_base {
548 > public:
549 >        driver_dga();
550 >        ~driver_dga();
551 >
552 >        void suspend(void);
553 >        void resume(void);
554 >
555 > private:
556 >        Window suspend_win;             // "Suspend" information window
557 >        void *fb_save;                  // Saved frame buffer for suspend/resume
558 > };
559 >
560 > driver_dga::driver_dga()
561 > : suspend_win(0), fb_save(NULL)
562 > {
563 > }
564 >
565 > driver_dga::~driver_dga()
566 > {
567 >        XUngrabPointer(x_display, CurrentTime);
568 >        XUngrabKeyboard(x_display, CurrentTime);
569 > }
570 >
571 > // Suspend emulation
572 > void driver_dga::suspend(void)
573 > {
574 >        // Release ctrl key
575 >        ADBKeyUp(0x36);
576 >        ctrl_down = false;
577 >
578 >        // Lock frame buffer (this will stop the MacOS thread)
579 >        LOCK_FRAME_BUFFER;
580 >
581 >        // Save frame buffer
582 >        fb_save = malloc(VideoMonitor.mode.y * VideoMonitor.mode.bytes_per_row);
583 >        if (fb_save)
584 >                memcpy(fb_save, the_buffer, VideoMonitor.mode.y * VideoMonitor.mode.bytes_per_row);
585 >
586 >        // Close full screen display
587 > #ifdef ENABLE_XF86_DGA
588 >        XF86DGADirectVideo(x_display, screen, 0);
589   #endif
590 <        return true;
590 >        XUngrabPointer(x_display, CurrentTime);
591 >        XUngrabKeyboard(x_display, CurrentTime);
592 >        XUnmapWindow(x_display, w);
593 >        wait_unmapped(w);
594 >
595 >        // Open "suspend" window
596 >        XSetWindowAttributes wattr;
597 >        wattr.event_mask = KeyPressMask;
598 >        wattr.background_pixel = black_pixel;
599 >                
600 >        suspend_win = XCreateWindow(x_display, rootwin, 0, 0, 512, 1, 0, xdepth,
601 >                InputOutput, vis, CWEventMask | CWBackPixel, &wattr);
602 >        set_window_name(suspend_win, STR_SUSPEND_WINDOW_TITLE);
603 >        set_window_focus(suspend_win);
604 >        XMapWindow(x_display, suspend_win);
605 >        emul_suspended = true;
606   }
607  
608 < // Init fbdev DGA display
609 < static bool init_fbdev_dga(char *in_fb_name)
608 > // Resume emulation
609 > void driver_dga::resume(void)
610   {
611 +        // Close "suspend" window
612 +        XDestroyWindow(x_display, suspend_win);
613 +        XSync(x_display, false);
614 +
615 +        // Reopen full screen display
616 +        XMapRaised(x_display, w);
617 +        wait_mapped(w);
618 +        XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
619 +        XGrabKeyboard(x_display, rootwin, 1, GrabModeAsync, GrabModeAsync, CurrentTime);
620 +        XGrabPointer(x_display, rootwin, 1, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
621 + #ifdef ENABLE_XF86_DGA
622 +        XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
623 +        XF86DGASetViewPort(x_display, screen, 0, 0);
624 + #endif
625 +        XSync(x_display, false);
626 +        
627 +        // the_buffer already contains the data to restore. i.e. since a temporary
628 +        // frame buffer is used when VOSF is actually used, fb_save is therefore
629 +        // not necessary.
630 + #ifdef ENABLE_VOSF
631 +        if (use_vosf) {
632 +                LOCK_VOSF;
633 +                PFLAG_SET_ALL;
634 +                UNLOCK_VOSF;
635 +                memset(the_buffer_copy, 0, VideoMonitor.mode.bytes_per_row * VideoMonitor.mode.y);
636 +        }
637 + #endif
638 +        
639 +        // Restore frame buffer
640 +        if (fb_save) {
641 + #ifdef ENABLE_VOSF
642 +                // Don't copy fb_save to the temporary frame buffer in VOSF mode
643 +                if (!use_vosf)
644 + #endif
645 +                memcpy(the_buffer, fb_save, VideoMonitor.mode.y * VideoMonitor.mode.bytes_per_row);
646 +                free(fb_save);
647 +                fb_save = NULL;
648 +        }
649 +        
650 +        // Unlock frame buffer (and continue MacOS thread)
651 +        UNLOCK_FRAME_BUFFER;
652 +        emul_suspended = false;
653 + }
654 + #endif
655 +
656 +
657   #ifdef ENABLE_FBDEV_DGA
658 + /*
659 + *  fbdev DGA display driver
660 + */
661 +
662 + const char FBDEVICES_FILE_NAME[] = DATADIR "/fbdevices";
663 + const char FBDEVICE_FILE_NAME[] = "/dev/fb";
664 +
665 + class driver_fbdev : public driver_dga {
666 + public:
667 +        driver_fbdev(const video_mode &mode);
668 +        ~driver_fbdev();
669 + };
670 +
671 + // Open display
672 + driver_fbdev::driver_fbdev(const video_mode &mode)
673 + {
674 +        int width = mode.x, height = mode.y;
675 +
676 +        // Set absolute mouse mode
677 +        ADBSetRelMouseMode(false);
678 +        
679          // Find the maximum depth available
680          int ndepths, max_depth(0);
681          int *depths = XListDepths(x_display, screen, &ndepths);
682          if (depths == NULL) {
683                  printf("FATAL: Could not determine the maximal depth available\n");
684 <                return false;
684 >                return;
685          } else {
686                  while (ndepths-- > 0) {
687                          if (depths[ndepths] > max_depth)
# Line 561 | Line 698 | static bool init_fbdev_dga(char *in_fb_n
698                  char str[256];
699                  sprintf(str, GetString(STR_NO_FBDEVICE_FILE_ERR), fbd_path ? fbd_path : FBDEVICES_FILE_NAME, strerror(errno));
700                  ErrorAlert(str);
701 <                return false;
701 >                return;
702          }
703          
704          int fb_depth;           // supported depth
# Line 581 | Line 718 | static bool init_fbdev_dga(char *in_fb_n
718                          continue;
719                  
720                  if ((sscanf(line, "%19s %d %x", &fb_name, &fb_depth, &fb_offset) == 3)
721 <                && (strcmp(fb_name, in_fb_name) == 0) && (fb_depth == max_depth)) {
721 >                 && (strcmp(fb_name, fb_name) == 0) && (fb_depth == max_depth)) {
722                          device_found = true;
723                          break;
724                  }
# Line 593 | Line 730 | static bool init_fbdev_dga(char *in_fb_n
730          // Frame buffer name not found ? Then, display warning
731          if (!device_found) {
732                  char str[256];
733 <                sprintf(str, GetString(STR_FBDEV_NAME_ERR), in_fb_name, max_depth);
733 >                sprintf(str, GetString(STR_FBDEV_NAME_ERR), fb_name, max_depth);
734                  ErrorAlert(str);
735 <                return false;
735 >                return;
736          }
737          
601        int width = DisplayWidth(x_display, screen);
602        int height = DisplayHeight(x_display, screen);
603        depth = fb_depth; // max_depth
604        
605        // Set relative mouse mode
606        ADBSetRelMouseMode(false);
607        
738          // Create window
739          XSetWindowAttributes wattr;
740          wattr.event_mask = eventmask = dga_eventmask;
# Line 612 | Line 742 | static bool init_fbdev_dga(char *in_fb_n
742          wattr.override_redirect = True;
743          wattr.colormap = cmap[0];
744          
745 <        the_win = XCreateWindow(x_display, rootwin,
745 >        w = XCreateWindow(x_display, rootwin,
746                  0, 0, width, height,
747                  0, xdepth, InputOutput, vis,
748 <                CWEventMask | CWBackPixel | CWOverrideRedirect | (depth == 8 ? CWColormap : 0),
748 >                CWEventMask | CWBackPixel | CWOverrideRedirect | (fb_depth <= 8 ? CWColormap : 0),
749                  &wattr);
750  
751          // Set window name/class
752 <        set_window_name(the_win, STR_WINDOW_TITLE);
752 >        set_window_name(w, STR_WINDOW_TITLE);
753  
754          // Indicate that we want keyboard input
755 <        set_window_focus(the_win);
755 >        set_window_focus(w);
756  
757          // Show window
758 <        XMapRaised(x_display, the_win);
759 <        wait_mapped(the_win);
758 >        XMapRaised(x_display, w);
759 >        wait_mapped(w);
760          
761          // Grab mouse and keyboard
762 <        XGrabKeyboard(x_display, the_win, True,
762 >        XGrabKeyboard(x_display, w, True,
763                  GrabModeAsync, GrabModeAsync, CurrentTime);
764 <        XGrabPointer(x_display, the_win, True,
764 >        XGrabPointer(x_display, w, True,
765                  PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
766 <                GrabModeAsync, GrabModeAsync, the_win, None, CurrentTime);
766 >                GrabModeAsync, GrabModeAsync, w, None, CurrentTime);
767          
768 <        // Set VideoMonitor
769 <        int bytes_per_row = width;
640 <        switch (depth) {
641 <                case 1:
642 <                        bytes_per_row = ((width | 7) & ~7) >> 3;
643 <                        break;
644 <                case 15:
645 <                case 16:
646 <                        bytes_per_row *= 2;
647 <                        break;
648 <                case 24:
649 <                case 32:
650 <                        bytes_per_row *= 4;
651 <                        break;
652 <        }
768 >        // Calculate bytes per row
769 >        int bytes_per_row = TrivialBytesPerRow(mode.x, mode.depth);
770          
771 +        // Map frame buffer
772          if ((the_buffer = (uint8 *) mmap(NULL, height * bytes_per_row, PROT_READ | PROT_WRITE, MAP_PRIVATE, fbdev_fd, fb_offset)) == MAP_FAILED) {
773                  if ((the_buffer = (uint8 *) mmap(NULL, height * bytes_per_row, PROT_READ | PROT_WRITE, MAP_SHARED, fbdev_fd, fb_offset)) == MAP_FAILED) {
774                          char str[256];
775                          sprintf(str, GetString(STR_FBDEV_MMAP_ERR), strerror(errno));
776                          ErrorAlert(str);
777 <                        return false;
777 >                        return;
778                  }
779          }
780          
781   #if ENABLE_VOSF
782   #if REAL_ADDRESSING || DIRECT_ADDRESSING
783 <        // If the blit function is null, i.e. just a copy of the buffer,
784 <        // we first try to avoid the allocation of a temporary frame buffer
785 <        use_vosf = true;
668 <        do_update_framebuffer = GET_FBCOPY_FUNC(depth, true, DISPLAY_DGA);
669 <        if (do_update_framebuffer == FBCOPY_FUNC(fbcopy_raw))
670 <                use_vosf = false;
783 >        // Screen_blitter_init() returns TRUE if VOSF is mandatory
784 >        // i.e. the framebuffer update function is not Blit_Copy_Raw
785 >        use_vosf = Screen_blitter_init(&visualInfo, true);
786          
787          if (use_vosf) {
788 <                the_host_buffer = the_buffer;
789 <                the_buffer_size = align_on_page_boundary((height + 2) * bytes_per_row);
790 <                the_buffer_copy = (uint8 *)malloc(the_buffer_size);
791 <                memset(the_buffer_copy, 0, the_buffer_size);
792 <                the_buffer = (uint8 *)allocate_framebuffer(the_buffer_size);
678 <                memset(the_buffer, 0, the_buffer_size);
788 >          // Allocate memory for frame buffer (SIZE is extended to page-boundary)
789 >          the_host_buffer = the_buffer;
790 >          the_buffer_size = page_extend((height + 2) * bytes_per_row);
791 >          the_buffer_copy = (uint8 *)vm_acquire(the_buffer_size);
792 >          the_buffer = (uint8 *)vm_acquire(the_buffer_size);
793          }
794   #else
795          use_vosf = false;
796   #endif
797   #endif
798          
799 <        set_video_monitor(width, height, bytes_per_row, true);
800 < #if REAL_ADDRESSING || DIRECT_ADDRESSING
801 <        VideoMonitor.mac_frame_base = Host2MacAddr(the_buffer);
802 < #else
803 <        VideoMonitor.mac_frame_base = MacFrameBaseMac;
804 < #endif
805 <        return true;
806 < #else
693 <        ErrorAlert("Basilisk II has been compiled with fbdev DGA support disabled.");
694 <        return false;
695 < #endif
799 >        // Set VideoMonitor
800 >        VideoModes[0].bytes_per_row = bytes_per_row;
801 >        VideoModes[0].depth = DepthModeForPixelDepth(fb_depth);
802 >        VideoMonitor.mode = mode;
803 >        set_mac_frame_buffer(mode.depth, true);
804 >
805 >        // Everything went well
806 >        init_ok = true;
807   }
808  
809 < // Init XF86 DGA display
810 < static bool init_xf86_dga(int width, int height)
809 > // Close display
810 > driver_fbdev::~driver_fbdev()
811   {
812 + }
813 + #endif
814 +
815 +
816   #ifdef ENABLE_XF86_DGA
817 + /*
818 + *  XFree86 DGA display driver
819 + */
820 +
821 + class driver_xf86dga : public driver_dga {
822 + public:
823 +        driver_xf86dga(const video_mode &mode);
824 +        ~driver_xf86dga();
825 +
826 +        void update_palette(void);
827 +        void resume(void);
828 +
829 + private:
830 +        int current_dga_cmap;                                   // Number (0 or 1) of currently installed DGA colormap
831 + };
832 +
833 + // Open display
834 + driver_xf86dga::driver_xf86dga(const video_mode &mode)
835 + : current_dga_cmap(0)
836 + {
837 +        int width = mode.x, height = mode.y;
838 +
839          // Set relative mouse mode
840          ADBSetRelMouseMode(true);
841  
# Line 723 | Line 860 | static bool init_xf86_dga(int width, int
860          wattr.event_mask = eventmask = dga_eventmask;
861          wattr.override_redirect = True;
862  
863 <        the_win = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
863 >        w = XCreateWindow(x_display, rootwin, 0, 0, width, height, 0, xdepth,
864                  InputOutput, vis, CWEventMask | CWOverrideRedirect, &wattr);
865  
866          // Set window name/class
867 <        set_window_name(the_win, STR_WINDOW_TITLE);
867 >        set_window_name(w, STR_WINDOW_TITLE);
868  
869          // Indicate that we want keyboard input
870 <        set_window_focus(the_win);
870 >        set_window_focus(w);
871  
872          // Show window
873 <        XMapRaised(x_display, the_win);
874 <        wait_mapped(the_win);
873 >        XMapRaised(x_display, w);
874 >        wait_mapped(w);
875  
876          // Establish direct screen connection
877 <        XMoveResizeWindow(x_display, the_win, 0, 0, width, height);
877 >        XMoveResizeWindow(x_display, w, 0, 0, width, height);
878          XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
879          XGrabKeyboard(x_display, rootwin, True, GrabModeAsync, GrabModeAsync, CurrentTime);
880          XGrabPointer(x_display, rootwin, True, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
# Line 749 | Line 886 | static bool init_xf86_dga(int width, int
886          XF86DGASetVidPage(x_display, screen, 0);
887  
888          // Set colormap
889 <        if (depth == 8) {
890 <                XSetWindowColormap(x_display, the_win, cmap[current_dga_cmap = 0]);
889 >        if (!IsDirectMode(mode)) {
890 >                XSetWindowColormap(x_display, w, cmap[current_dga_cmap = 0]);
891                  XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
892          }
893          XSync(x_display, false);
894  
895 <        // Set VideoMonitor
896 <        int bytes_per_row = (v_width + 7) & ~7;
897 <        switch (depth) {
761 <                case 1:
762 <                        bytes_per_row /= 8;
763 <                        break;
764 <                case 15:
765 <                case 16:
766 <                        bytes_per_row *= 2;
767 <                        break;
768 <                case 24:
769 <                case 32:
770 <                        bytes_per_row *= 4;
771 <                        break;
772 <        }
773 <        
895 >        // Init blitting routines
896 >        int bytes_per_row = TrivialBytesPerRow((v_width + 7) & ~7, mode.depth);
897 > #ifdef VIDEO_VOSF
898   #if REAL_ADDRESSING || DIRECT_ADDRESSING
899 <        // If the blit function is null, i.e. just a copy of the buffer,
900 <        // we first try to avoid the allocation of a temporary frame buffer
901 <        use_vosf = true;
778 <        do_update_framebuffer = GET_FBCOPY_FUNC(depth, true, DISPLAY_DGA);
779 <        if (do_update_framebuffer == FBCOPY_FUNC(fbcopy_raw))
780 <                use_vosf = false;
899 >        // Screen_blitter_init() returns TRUE if VOSF is mandatory
900 >        // i.e. the framebuffer update function is not Blit_Copy_Raw
901 >        use_vosf = Screen_blitter_init(&visualInfo, true);
902          
903          if (use_vosf) {
904 <                the_host_buffer = the_buffer;
905 <                the_buffer_size = align_on_page_boundary((height + 2) * bytes_per_row);
906 <                the_buffer_copy = (uint8 *)malloc(the_buffer_size);
907 <                memset(the_buffer_copy, 0, the_buffer_size);
908 <                the_buffer = (uint8 *)allocate_framebuffer(the_buffer_size);
788 <                memset(the_buffer, 0, the_buffer_size);
904 >          // Allocate memory for frame buffer (SIZE is extended to page-boundary)
905 >          the_host_buffer = the_buffer;
906 >          the_buffer_size = page_extend((height + 2) * bytes_per_row);
907 >          the_buffer_copy = (uint8 *)vm_acquire(the_buffer_size);
908 >          the_buffer = (uint8 *)vm_acquire(the_buffer_size);
909          }
910 < #elif defined(ENABLE_VOSF)
791 <        // The UAE memory handlers will already handle color conversion, if needed.
910 > #else
911          use_vosf = false;
912   #endif
794        
795        set_video_monitor(width, height, bytes_per_row, true);
796 #if REAL_ADDRESSING || DIRECT_ADDRESSING
797        VideoMonitor.mac_frame_base = Host2MacAddr(the_buffer);
798 //      MacFrameLayout = FLAYOUT_DIRECT;
799 #else
800        VideoMonitor.mac_frame_base = MacFrameBaseMac;
913   #endif
914 <        return true;
915 < #else
916 <        ErrorAlert("Basilisk II has been compiled with XF86 DGA support disabled.");
917 <        return false;
914 >        
915 >        // Set VideoMonitor
916 >        const_cast<video_mode *>(&mode)->bytes_per_row = bytes_per_row;
917 >        VideoMonitor.mode = mode;
918 >        set_mac_frame_buffer(mode.depth, true);
919 >
920 >        // Everything went well
921 >        init_ok = true;
922 > }
923 >
924 > // Close display
925 > driver_xf86dga::~driver_xf86dga()
926 > {
927 >        XF86DGADirectVideo(x_display, screen, 0);
928 > #ifdef ENABLE_XF86_VIDMODE
929 >        if (has_vidmode)
930 >                XF86VidModeSwitchToMode(x_display, screen, x_video_modes[0]);
931   #endif
932   }
933  
934 + // Palette has changed
935 + void driver_xf86dga::update_palette(void)
936 + {
937 +        driver_dga::update_palette();
938 +        current_dga_cmap ^= 1;
939 +        if (!IsDirectMode(VideoMonitor.mode) && cmap[current_dga_cmap])
940 +                XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
941 + }
942 +
943 + // Resume emulation
944 + void driver_xf86dga::resume(void)
945 + {
946 +        driver_dga::resume();
947 +        if (!IsDirectMode(VideoMonitor.mode))
948 +                XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
949 + }
950 + #endif
951 +
952 +
953 + /*
954 + *  Initialization
955 + */
956 +
957   // Init keycode translation table
958   static void keycode_init(void)
959   {
# Line 871 | Line 1019 | static void keycode_init(void)
1019          }
1020   }
1021  
1022 < bool VideoInitBuffer()
1022 > // Open display for specified mode
1023 > static bool video_open(const video_mode &mode)
1024   {
1025 +        // Create display driver object of requested type
1026 +        switch (display_type) {
1027 +                case DISPLAY_WINDOW:
1028 +                        drv = new driver_window(mode);
1029 +                        break;
1030 + #ifdef ENABLE_FBDEV_DGA
1031 +                case DISPLAY_DGA:
1032 +                        drv = new driver_fbdev(mode);
1033 +                        break;
1034 + #endif
1035 + #ifdef ENABLE_XF86_DGA
1036 +                case DISPLAY_DGA:
1037 +                        drv = new driver_xf86dga(mode);
1038 +                        break;
1039 + #endif
1040 +        }
1041 +        if (drv == NULL)
1042 +                return false;
1043 +        if (!drv->init_ok) {
1044 +                delete drv;
1045 +                drv = NULL;
1046 +                return false;
1047 +        }
1048 +
1049   #ifdef ENABLE_VOSF
1050          if (use_vosf) {
1051 <                const uint32 page_size  = getpagesize();
1052 <                const uint32 page_mask  = page_size - 1;
1053 <                
1054 <                mainBuffer.memBase      = (uint32) the_buffer;
1055 <                // Align the frame buffer on page boundary
883 <                mainBuffer.memStart             = (uint32)((((unsigned long) the_buffer) + page_mask) & ~page_mask);
884 <                mainBuffer.memLength    = the_buffer_size;
885 <                mainBuffer.memEnd       = mainBuffer.memStart + mainBuffer.memLength;
886 <
887 <                mainBuffer.pageSize     = page_size;
888 <                mainBuffer.pageCount    = (mainBuffer.memLength + page_mask)/mainBuffer.pageSize;
889 <                mainBuffer.pageBits     = log_base_2(mainBuffer.pageSize);
890 <
891 <                if (mainBuffer.dirtyPages != 0)
892 <                        free(mainBuffer.dirtyPages);
893 <
894 <                mainBuffer.dirtyPages = (uint8 *) malloc(mainBuffer.pageCount);
895 <
896 <                if (mainBuffer.pageInfo != 0)
897 <                        free(mainBuffer.pageInfo);
898 <
899 <                mainBuffer.pageInfo = (ScreenPageInfo *) malloc(mainBuffer.pageCount * sizeof(ScreenPageInfo));
1051 >                // Initialize the mainBuffer structure
1052 >                if (!video_init_buffer()) {
1053 >                        ErrorAlert(STR_VOSF_INIT_ERR);
1054 >                return false;
1055 >                }
1056  
1057 <                if ((mainBuffer.dirtyPages == 0) || (mainBuffer.pageInfo == 0))
1057 >                // Initialize the handler for SIGSEGV
1058 >                if (!sigsegv_install_handler(screen_fault_handler)) {
1059 >                        ErrorAlert("Could not initialize Video on SEGV signals");
1060                          return false;
1061 +                }
1062 +        }
1063 + #endif
1064 +        
1065 +        // Initialize VideoRefresh function
1066 +        VideoRefreshInit();
1067  
1068 <                PFLAG_CLEAR_ALL;
1068 >        // Lock down frame buffer
1069 >        XSync(x_display, false);
1070 >        LOCK_FRAME_BUFFER;
1071  
1072 <                uint32 a = 0;
1073 <                for (int i = 0; i < mainBuffer.pageCount; i++) {
1074 <                        int y1 = a / VideoMonitor.bytes_per_row;
1075 <                        if (y1 >= VideoMonitor.y)
1076 <                                y1 = VideoMonitor.y - 1;
1077 <
1078 <                        int y2 = (a + mainBuffer.pageSize) / VideoMonitor.bytes_per_row;
913 <                        if (y2 >= VideoMonitor.y)
914 <                                y2 = VideoMonitor.y - 1;
915 <
916 <                        mainBuffer.pageInfo[i].top = y1;
917 <                        mainBuffer.pageInfo[i].bottom = y2;
918 <
919 <                        a += mainBuffer.pageSize;
920 <                        if (a > mainBuffer.memLength)
921 <                                a = mainBuffer.memLength;
922 <                }
923 <                
924 <                // We can now write-protect the frame buffer
925 <                if (mprotect((caddr_t)mainBuffer.memStart, mainBuffer.memLength, PROT_READ) != 0)
926 <                        return false;
1072 >        // Start redraw/input thread
1073 > #ifdef HAVE_PTHREADS
1074 >        redraw_thread_cancel = false;
1075 >        redraw_thread_active = (pthread_create(&redraw_thread, NULL, redraw_func, NULL) == 0);
1076 >        if (!redraw_thread_active) {
1077 >                printf("FATAL: cannot create redraw thread\n");
1078 >                return false;
1079          }
1080 + #else
1081 +        redraw_thread_active = true;
1082   #endif
1083 +
1084          return true;
1085   }
1086  
1087   bool VideoInit(bool classic)
1088   {
1089 +        classic_mode = classic;
1090 +
1091   #ifdef ENABLE_VOSF
935        // Open /dev/zero
936        zero_fd = open("/dev/zero", O_RDWR);
937        if (zero_fd < 0) {
938        char str[256];
939                sprintf(str, GetString(STR_NO_DEV_ZERO_ERR), strerror(errno));
940                ErrorAlert(str);
941        return false;
942        }
943        
1092          // Zero the mainBuffer structure
1093 <        mainBuffer.dirtyPages = 0;
1094 <        mainBuffer.pageInfo = 0;
1093 >        mainBuffer.dirtyPages = NULL;
1094 >        mainBuffer.pageInfo = NULL;
1095   #endif
1096          
1097          // Check if X server runs on local machine
# Line 954 | Line 1102 | bool VideoInit(bool classic)
1102          keycode_init();
1103  
1104          // Read prefs
1105 <        mouse_wheel_mode = PrefsFindInt16("mousewheelmode");
1106 <        mouse_wheel_lines = PrefsFindInt16("mousewheellines");
1105 >        frame_skip = PrefsFindInt32("frameskip");
1106 >        mouse_wheel_mode = PrefsFindInt32("mousewheelmode");
1107 >        mouse_wheel_lines = PrefsFindInt32("mousewheellines");
1108  
1109          // Find screen and root window
1110          screen = XDefaultScreen(x_display);
# Line 968 | Line 1117 | bool VideoInit(bool classic)
1117          // Frame buffer name
1118          char fb_name[20];
1119          
1120 <        // Could do fbdev dga ?
1120 >        // Could do fbdev DGA?
1121          if ((fbdev_fd = open(FBDEVICE_FILE_NAME, O_RDWR)) != -1)
1122                  has_dga = true;
1123          else
# Line 1014 | Line 1163 | bool VideoInit(bool classic)
1163                  case 15:
1164                  case 16:
1165                  case 24:
1166 <                case 32:
1167 <                        color_class = TrueColor;
1166 >                case 32: // Try DirectColor first, as this will allow gamma correction
1167 >                        if (!XMatchVisualInfo(x_display, screen, xdepth, DirectColor, &visualInfo))
1168 >                                color_class = TrueColor;
1169                          break;
1170                  default:
1171 <                        ErrorAlert(GetString(STR_UNSUPP_DEPTH_ERR));
1171 >                        ErrorAlert(STR_UNSUPP_DEPTH_ERR);
1172                          return false;
1173          }
1174          if (!XMatchVisualInfo(x_display, screen, xdepth, color_class, &visualInfo)) {
1175 <                ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
1175 >                ErrorAlert(STR_NO_XVISUAL_ERR);
1176                  return false;
1177          }
1178          if (visualInfo.depth != xdepth) {
1179 <                ErrorAlert(GetString(STR_NO_XVISUAL_ERR));
1179 >                ErrorAlert(STR_NO_XVISUAL_ERR);
1180                  return false;
1181          }
1182          vis = visualInfo.visual;
1183  
1184 <        // Mac screen depth is always 1 bit in Classic mode, but follows X depth otherwise
1185 <        classic_mode = classic;
1036 <        if (classic)
1037 <                depth = 1;
1038 <        else
1039 <                depth = xdepth;
1040 <
1041 <        // Create color maps for 8 bit mode
1042 <        if (depth == 8) {
1184 >        // Create color maps
1185 >        if (color_class == PseudoColor || color_class == DirectColor) {
1186                  cmap[0] = XCreateColormap(x_display, rootwin, vis, AllocAll);
1187                  cmap[1] = XCreateColormap(x_display, rootwin, vis, AllocAll);
1045                XInstallColormap(x_display, cmap[0]);
1046                XInstallColormap(x_display, cmap[1]);
1188          }
1189  
1190          // Get screen mode from preferences
1191          const char *mode_str;
1192 <        if (classic)
1192 >        if (classic_mode)
1193                  mode_str = "win/512/342";
1194          else
1195                  mode_str = PrefsFindString("screen");
1196  
1197 <        // Determine type and mode
1198 <        int width = 512, height = 384;
1197 >        // Determine display type and default dimensions
1198 >        int default_width = 512, default_height = 384;
1199          display_type = DISPLAY_WINDOW;
1200          if (mode_str) {
1201 <                if (sscanf(mode_str, "win/%d/%d", &width, &height) == 2)
1201 >                if (sscanf(mode_str, "win/%d/%d", &default_width, &default_height) == 2) {
1202                          display_type = DISPLAY_WINDOW;
1203   #ifdef ENABLE_FBDEV_DGA
1204 <                else if (has_dga && sscanf(mode_str, "dga/%19s", fb_name) == 1) {
1205 < #else
1206 <                else if (has_dga && sscanf(mode_str, "dga/%d/%d", &width, &height) == 2) {
1204 >                } else if (has_dga && sscanf(mode_str, "dga/%19s", fb_name) == 1) {
1205 >                        display_type = DISPLAY_DGA;
1206 >                        default_width = -1; default_height = -1; // use entire screen
1207   #endif
1208 + #ifdef ENABLE_XF86_DGA
1209 +                } else if (has_dga && sscanf(mode_str, "dga/%d/%d", &default_width, &default_height) == 2) {
1210                          display_type = DISPLAY_DGA;
1068                        if (width > DisplayWidth(x_display, screen))
1069                                width = DisplayWidth(x_display, screen);
1070                        if (height > DisplayHeight(x_display, screen))
1071                                height = DisplayHeight(x_display, screen);
1072                }
1073                if (width <= 0)
1074                        width = DisplayWidth(x_display, screen);
1075                if (height <= 0)
1076                        height = DisplayHeight(x_display, screen);
1077        }
1078
1079        // Initialize according to display type
1080        switch (display_type) {
1081                case DISPLAY_WINDOW:
1082                        if (!init_window(width, height))
1083                                return false;
1084                        break;
1085                case DISPLAY_DGA:
1086 #ifdef ENABLE_FBDEV_DGA
1087                        if (!init_fbdev_dga(fb_name))
1088 #else
1089                        if (!init_xf86_dga(width, height))
1211   #endif
1212 <                                return false;
1092 <                        break;
1212 >                }
1213          }
1214 +        if (default_width <= 0)
1215 +                default_width = DisplayWidth(x_display, screen);
1216 +        else if (default_width > DisplayWidth(x_display, screen))
1217 +                default_width = DisplayWidth(x_display, screen);
1218 +        if (default_height <= 0)
1219 +                default_height = DisplayHeight(x_display, screen);
1220 +        else if (default_height > DisplayHeight(x_display, screen))
1221 +                default_height = DisplayHeight(x_display, screen);
1222  
1223 <        // Lock down frame buffer
1224 <        LOCK_FRAME_BUFFER;
1225 <
1098 < #if !REAL_ADDRESSING && !DIRECT_ADDRESSING
1099 <        // Set variables for UAE memory mapping
1100 <        MacFrameBaseHost = the_buffer;
1101 <        MacFrameSize = VideoMonitor.bytes_per_row * VideoMonitor.y;
1102 <
1103 <        // No special frame buffer in Classic mode (frame buffer is in Mac RAM)
1104 <        if (classic)
1105 <                MacFrameLayout = FLAYOUT_NONE;
1106 < #endif
1223 >        // Mac screen depth is always 1 bit in Classic mode, but follows X depth otherwise
1224 >        int depth = (classic_mode ? 1 : xdepth);
1225 >        video_depth depth_mode = DepthModeForPixelDepth(depth);
1226  
1227 < #ifdef ENABLE_VOSF
1228 <        if (use_vosf) {
1229 <                // Initialize the mainBuffer structure
1230 <                if (!VideoInitBuffer()) {
1231 <                        // TODO: STR_VOSF_INIT_ERR ?
1232 <                        ErrorAlert("Could not initialize Video on SEGV signals");
1233 <                return false;
1227 >        // Construct list of supported modes
1228 >        if (display_type == DISPLAY_WINDOW) {
1229 >                if (classic)
1230 >                        add_mode(512, 342, 0x80, 64, depth_mode);
1231 >                else {
1232 >                        add_mode(512, 384, 0x80, TrivialBytesPerRow(512, depth_mode), depth_mode);
1233 >                        add_mode(640, 480, 0x81, TrivialBytesPerRow(640, depth_mode), depth_mode);
1234 >                        add_mode(800, 600, 0x82, TrivialBytesPerRow(800, depth_mode), depth_mode);
1235 >                        add_mode(1024, 768, 0x83, TrivialBytesPerRow(1024, depth_mode), depth_mode);
1236 >                        add_mode(1280, 1024, 0x84, TrivialBytesPerRow(1280, depth_mode), depth_mode);
1237                  }
1238 +        } else
1239 +                add_mode(default_width, default_height, 0x80, TrivialBytesPerRow(default_width, depth_mode), depth_mode);
1240  
1241 <                // Initialize the handler for SIGSEGV
1242 <                if (!Screen_fault_handler_init()) {
1243 <                        // TODO: STR_VOSF_INIT_ERR ?
1244 <                        ErrorAlert("Could not initialize Video on SEGV signals");
1245 <                        return false;
1241 >        // Find requested default mode and open display
1242 >        if (VideoModes.size() == 1)
1243 >                return video_open(VideoModes[0]);
1244 >        else {
1245 >                // Find mode with specified dimensions
1246 >                std::vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
1247 >                while (i != end) {
1248 >                        if (i->x == default_width && i->y == default_height)
1249 >                                return video_open(*i);
1250 >                        ++i;
1251                  }
1252 +                return video_open(VideoModes[0]);
1253          }
1124 #endif
1125        
1126        // Initialize VideoRefresh function
1127        VideoRefreshInit();
1128        
1129        XSync(x_display, false);
1130
1131 #ifdef HAVE_PTHREADS
1132        // Start redraw/input thread
1133        redraw_thread_active = (pthread_create(&redraw_thread, NULL, redraw_func, NULL) == 0);
1134        if (!redraw_thread_active) {
1135                printf("FATAL: cannot create redraw thread\n");
1136                return false;
1137        }
1138 #endif
1139        return true;
1254   }
1255  
1256  
# Line 1144 | Line 1258 | bool VideoInit(bool classic)
1258   *  Deinitialization
1259   */
1260  
1261 < void VideoExit(void)
1261 > // Close display
1262 > static void video_close(void)
1263   {
1149 #ifdef HAVE_PTHREADS
1264          // Stop redraw thread
1265 + #ifdef HAVE_PTHREADS
1266          if (redraw_thread_active) {
1267                  redraw_thread_cancel = true;
1268   #ifdef HAVE_PTHREAD_CANCEL
1269                  pthread_cancel(redraw_thread);
1270   #endif
1271                  pthread_join(redraw_thread, NULL);
1157                redraw_thread_active = false;
1272          }
1273   #endif
1274 +        redraw_thread_active = false;
1275  
1276          // Unlock frame buffer
1277          UNLOCK_FRAME_BUFFER;
1278 +        XSync(x_display, false);
1279  
1164        // Close window and server connection
1165        if (x_display != NULL) {
1166                XSync(x_display, false);
1167
1168 #ifdef ENABLE_XF86_DGA
1169                if (display_type == DISPLAY_DGA) {
1170                        XF86DGADirectVideo(x_display, screen, 0);
1171                        XUngrabPointer(x_display, CurrentTime);
1172                        XUngrabKeyboard(x_display, CurrentTime);
1173                }
1174 #endif
1175
1176 #ifdef ENABLE_XF86_VIDMODE
1177                if (has_vidmode && display_type == DISPLAY_DGA)
1178                        XF86VidModeSwitchToMode(x_display, screen, x_video_modes[0]);
1179 #endif
1180
1181 #ifdef ENABLE_FBDEV_DGA
1182                if (display_type == DISPLAY_DGA) {
1183                        XUngrabPointer(x_display, CurrentTime);
1184                        XUngrabKeyboard(x_display, CurrentTime);
1185                        close(fbdev_fd);
1186                }
1187 #endif
1188
1189                XFlush(x_display);
1190                XSync(x_display, false);
1191                if (depth == 8) {
1192                        XFreeColormap(x_display, cmap[0]);
1193                        XFreeColormap(x_display, cmap[1]);
1194                }
1195                
1196                if (!use_vosf) {
1197                        if (the_buffer) {
1198                                free(the_buffer);
1199                                the_buffer = NULL;
1200                        }
1201
1202                        if (!have_shm && the_buffer_copy) {
1203                                free(the_buffer_copy);
1204                                the_buffer_copy = NULL;
1205                        }
1206                }
1207 #ifdef ENABLE_VOSF
1208                else {
1209                        if (the_buffer != (uint8 *)MAP_FAILED) {
1210                                munmap((caddr_t)the_buffer, the_buffer_size);
1211                                the_buffer = 0;
1212                        }
1213                        
1214                        if (the_buffer_copy != (uint8 *)MAP_FAILED) {
1215                                munmap((caddr_t)the_buffer_copy, the_buffer_size);
1216                                the_buffer_copy = 0;
1217                        }
1218                }
1219 #endif
1220        }
1221        
1280   #ifdef ENABLE_VOSF
1281 +        // Deinitialize VOSF
1282          if (use_vosf) {
1224                // Clear mainBuffer data
1283                  if (mainBuffer.pageInfo) {
1284                          free(mainBuffer.pageInfo);
1285 <                        mainBuffer.pageInfo = 0;
1285 >                        mainBuffer.pageInfo = NULL;
1286                  }
1229
1287                  if (mainBuffer.dirtyPages) {
1288                          free(mainBuffer.dirtyPages);
1289 <                        mainBuffer.dirtyPages = 0;
1289 >                        mainBuffer.dirtyPages = NULL;
1290                  }
1291          }
1292 + #endif
1293 +
1294 +        // Close display
1295 +        delete drv;
1296 +        drv = NULL;
1297 + }
1298 +
1299 + void VideoExit(void)
1300 + {
1301 +        // Close display
1302 +        video_close();
1303 +
1304 +        // Free colormaps
1305 +        if (cmap[0]) {
1306 +                XFreeColormap(x_display, cmap[0]);
1307 +                cmap[0] = 0;
1308 +        }
1309 +        if (cmap[1]) {
1310 +                XFreeColormap(x_display, cmap[1]);
1311 +                cmap[1] = 0;
1312 +        }
1313  
1314 <        // Close /dev/zero
1315 <        if (zero_fd > 0)
1316 <                close(zero_fd);
1314 > #ifdef ENABLE_XF86_VIDMODE
1315 >        // Free video mode list
1316 >        if (x_video_modes) {
1317 >                XFree(x_video_modes);
1318 >                x_video_modes = NULL;
1319 >        }
1320 > #endif
1321 >
1322 > #ifdef ENABLE_FBDEV_DGA
1323 >        // Close framebuffer device
1324 >        if (fbdev_fd >= 0) {
1325 >                close(fbdev_fd);
1326 >                fbdev_fd = -1;
1327 >        }
1328   #endif
1329   }
1330  
# Line 1247 | Line 1336 | void VideoExit(void)
1336   void VideoQuitFullScreen(void)
1337   {
1338          D(bug("VideoQuitFullScreen()\n"));
1339 <        if (display_type == DISPLAY_DGA)
1251 <                quit_full_screen = true;
1339 >        quit_full_screen = true;
1340   }
1341  
1342  
# Line 1279 | Line 1367 | void video_set_palette(uint8 *pal)
1367  
1368          // Convert colors to XColor array
1369          for (int i=0; i<256; i++) {
1282                palette[i].pixel = i;
1370                  palette[i].red = pal[i*3] * 0x0101;
1371                  palette[i].green = pal[i*3+1] * 0x0101;
1372                  palette[i].blue = pal[i*3+2] * 0x0101;
1373 +                palette[i].pixel = i;
1374                  palette[i].flags = DoRed | DoGreen | DoBlue;
1375          }
1376  
# Line 1294 | Line 1382 | void video_set_palette(uint8 *pal)
1382  
1383  
1384   /*
1385 < *  Suspend/resume emulator
1385 > *  Switch video mode
1386   */
1387  
1388 < #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1301 < static void suspend_emul(void)
1302 < {
1303 <        if (display_type == DISPLAY_DGA) {
1304 <                // Release ctrl key
1305 <                ADBKeyUp(0x36);
1306 <                ctrl_down = false;
1307 <
1308 <                // Lock frame buffer (this will stop the MacOS thread)
1309 <                LOCK_FRAME_BUFFER;
1310 <
1311 <                // Save frame buffer
1312 <                fb_save = malloc(VideoMonitor.y * VideoMonitor.bytes_per_row);
1313 <                if (fb_save)
1314 <                        memcpy(fb_save, the_buffer, VideoMonitor.y * VideoMonitor.bytes_per_row);
1315 <
1316 <                // Close full screen display
1317 < #ifdef ENABLE_XF86_DGA
1318 <                XF86DGADirectVideo(x_display, screen, 0);
1319 < #endif
1320 <                XUngrabPointer(x_display, CurrentTime);
1321 <                XUngrabKeyboard(x_display, CurrentTime);
1322 <                XUnmapWindow(x_display, the_win);
1323 <                wait_unmapped(the_win);
1324 <
1325 <                // Open "suspend" window
1326 <                XSetWindowAttributes wattr;
1327 <                wattr.event_mask = KeyPressMask;
1328 <                wattr.background_pixel = black_pixel;
1329 <                
1330 <                suspend_win = XCreateWindow(x_display, rootwin, 0, 0, 512, 1, 0, xdepth,
1331 <                        InputOutput, vis, CWEventMask | CWBackPixel, &wattr);
1332 <                set_window_name(suspend_win, STR_SUSPEND_WINDOW_TITLE);
1333 <                set_window_focus(suspend_win);
1334 <                XMapWindow(x_display, suspend_win);
1335 <                emul_suspended = true;
1336 <        }
1337 < }
1338 <
1339 < static void resume_emul(void)
1388 > void video_switch_to_mode(const video_mode &mode)
1389   {
1390 <        // Close "suspend" window
1391 <        XDestroyWindow(x_display, suspend_win);
1392 <        XSync(x_display, false);
1390 >        // Close and reopen display
1391 >        video_close();
1392 >        video_open(mode);
1393  
1394 <        // Reopen full screen display
1395 <        XMapRaised(x_display, the_win);
1396 <        wait_mapped(the_win);
1348 <        XWarpPointer(x_display, None, rootwin, 0, 0, 0, 0, 0, 0);
1349 <        XGrabKeyboard(x_display, rootwin, 1, GrabModeAsync, GrabModeAsync, CurrentTime);
1350 <        XGrabPointer(x_display, rootwin, 1, PointerMotionMask | ButtonPressMask | ButtonReleaseMask, GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
1351 < #ifdef ENABLE_XF86_DGA
1352 <        XF86DGADirectVideo(x_display, screen, XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse);
1353 <        XF86DGASetViewPort(x_display, screen, 0, 0);
1354 < #endif
1355 <        XSync(x_display, false);
1356 <        
1357 <        // the_buffer already contains the data to restore. i.e. since a temporary
1358 <        // frame buffer is used when VOSF is actually used, fb_save is therefore
1359 <        // not necessary.
1360 < #ifdef ENABLE_VOSF
1361 <        if (use_vosf) {
1362 <                LOCK_VOSF;
1363 <                PFLAG_SET_ALL;
1364 <                UNLOCK_VOSF;
1365 <                memset(the_buffer_copy, 0, VideoMonitor.bytes_per_row * VideoMonitor.y);
1366 <        }
1367 < #endif
1368 <        
1369 <        // Restore frame buffer
1370 <        if (fb_save) {
1371 < #ifdef ENABLE_VOSF
1372 <                // Don't copy fb_save to the temporary frame buffer in VOSF mode
1373 <                if (!use_vosf)
1374 < #endif
1375 <                memcpy(the_buffer, fb_save, VideoMonitor.y * VideoMonitor.bytes_per_row);
1376 <                free(fb_save);
1377 <                fb_save = NULL;
1394 >        if (drv == NULL) {
1395 >                ErrorAlert(STR_OPEN_WINDOW_ERR);
1396 >                QuitEmulator();
1397          }
1379        
1380 #ifdef ENABLE_XF86_DGA
1381        if (depth == 8)
1382                XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
1383 #endif
1384
1385        // Unlock frame buffer (and continue MacOS thread)
1386        UNLOCK_FRAME_BUFFER;
1387        emul_suspended = false;
1398   }
1389 #endif
1399  
1400  
1401   /*
# Line 1447 | Line 1456 | static int kc_decode(KeySym ks)
1456                  case XK_slash: case XK_question: return 0x2c;
1457  
1458   #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1459 <                case XK_Tab: if (ctrl_down) {suspend_emul(); return -1;} else return 0x30;
1459 >                case XK_Tab: if (ctrl_down) {drv->suspend(); return -1;} else return 0x30;
1460   #else
1461                  case XK_Tab: return 0x30;
1462   #endif
# Line 1622 | Line 1631 | static void handle_events(void)
1631                                                  if (code == 0x36)
1632                                                          ctrl_down = true;
1633                                          } else {
1625 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1634                                                  if (code == 0x31)
1635 <                                                        resume_emul();  // Space wakes us up
1628 < #endif
1635 >                                                        drv->resume();  // Space wakes us up
1636                                          }
1637                                  }
1638                                  break;
# Line 1653 | Line 1660 | static void handle_events(void)
1660                                                  LOCK_VOSF;
1661                                                  PFLAG_SET_ALL;
1662                                                  UNLOCK_VOSF;
1663 <                                                memset(the_buffer_copy, 0, VideoMonitor.bytes_per_row * VideoMonitor.y);
1663 >                                                memset(the_buffer_copy, 0, VideoMonitor.mode.bytes_per_row * VideoMonitor.mode.y);
1664                                          }
1665                                          else
1666   #endif
# Line 1664 | Line 1671 | static void handle_events(void)
1671                                                          updt_box[x1][y1] = true;
1672                                                  nr_boxes = 16 * 16;
1673                                          } else                                  // Static refresh
1674 <                                                memset(the_buffer_copy, 0, VideoMonitor.bytes_per_row * VideoMonitor.y);
1674 >                                                memset(the_buffer_copy, 0, VideoMonitor.mode.bytes_per_row * VideoMonitor.mode.y);
1675                                  }
1676                                  break;
1677  
# Line 1685 | Line 1692 | static void handle_events(void)
1692   */
1693  
1694   // Dynamic display update (variable frame rate for each box)
1695 < static void update_display_dynamic(int ticker)
1695 > static void update_display_dynamic(int ticker, driver_window *drv)
1696   {
1697          int y1, y2, y2s, y2a, i, x1, xm, xmo, ymo, yo, yi, yil, xi;
1698          int xil = 0;
1699          int rxm = 0, rxmo = 0;
1700 <        int bytes_per_row = VideoMonitor.bytes_per_row;
1701 <        int bytes_per_pixel = VideoMonitor.bytes_per_row / VideoMonitor.x;
1702 <        int rx = VideoMonitor.bytes_per_row / 16;
1703 <        int ry = VideoMonitor.y / 16;
1700 >        int bytes_per_row = VideoMonitor.mode.bytes_per_row;
1701 >        int bytes_per_pixel = VideoMonitor.mode.bytes_per_row / VideoMonitor.mode.x;
1702 >        int rx = VideoMonitor.mode.bytes_per_row / 16;
1703 >        int ry = VideoMonitor.mode.y / 16;
1704          int max_box;
1705  
1706          y2s = sm_uptd[ticker % 8];
# Line 1747 | Line 1754 | static void update_display_dynamic(int t
1754                                          i = (yi * bytes_per_row) + xi;
1755                                          for (y2=0; y2 < yil; y2++, i += bytes_per_row)
1756                                                  memcpy(&the_buffer_copy[i], &the_buffer[i], xil);
1757 <                                        if (depth == 1) {
1758 <                                                if (have_shm)
1759 <                                                        XShmPutImage(x_display, the_win, the_gc, img, xi * 8, yi, xi * 8, yi, xil * 8, yil, 0);
1757 >                                        if (VideoMonitor.mode.depth == VDEPTH_1BIT) {
1758 >                                                if (drv->have_shm)
1759 >                                                        XShmPutImage(x_display, drv->w, drv->gc, drv->img, xi * 8, yi, xi * 8, yi, xil * 8, yil, 0);
1760                                                  else
1761 <                                                        XPutImage(x_display, the_win, the_gc, img, xi * 8, yi, xi * 8, yi, xil * 8, yil);
1761 >                                                        XPutImage(x_display, drv->w, drv->gc, drv->img, xi * 8, yi, xi * 8, yi, xil * 8, yil);
1762                                          } else {
1763 <                                                if (have_shm)
1764 <                                                        XShmPutImage(x_display, the_win, the_gc, img, xi / bytes_per_pixel, yi, xi / bytes_per_pixel, yi, xil / bytes_per_pixel, yil, 0);
1763 >                                                if (drv->have_shm)
1764 >                                                        XShmPutImage(x_display, drv->w, drv->gc, drv->img, xi / bytes_per_pixel, yi, xi / bytes_per_pixel, yi, xil / bytes_per_pixel, yil, 0);
1765                                                  else
1766 <                                                        XPutImage(x_display, the_win, the_gc, img, xi / bytes_per_pixel, yi, xi / bytes_per_pixel, yi, xil / bytes_per_pixel, yil);
1766 >                                                        XPutImage(x_display, drv->w, drv->gc, drv->img, xi / bytes_per_pixel, yi, xi / bytes_per_pixel, yi, xil / bytes_per_pixel, yil);
1767                                          }
1768                                          xil = 0;
1769                                  }
# Line 1775 | Line 1782 | static void update_display_dynamic(int t
1782   }
1783  
1784   // Static display update (fixed frame rate, but incremental)
1785 < static void update_display_static(void)
1785 > static void update_display_static(driver_window *drv)
1786   {
1787          // Incremental update code
1788          int wide = 0, high = 0, x1, x2, y1, y2, i, j;
1789 <        int bytes_per_row = VideoMonitor.bytes_per_row;
1790 <        int bytes_per_pixel = VideoMonitor.bytes_per_row / VideoMonitor.x;
1789 >        int bytes_per_row = VideoMonitor.mode.bytes_per_row;
1790 >        int bytes_per_pixel = VideoMonitor.mode.bytes_per_row / VideoMonitor.mode.x;
1791          uint8 *p, *p2;
1792  
1793          // Check for first line from top and first line from bottom that have changed
1794          y1 = 0;
1795 <        for (j=0; j<VideoMonitor.y; j++) {
1795 >        for (j=0; j<VideoMonitor.mode.y; j++) {
1796                  if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
1797                          y1 = j;
1798                          break;
1799                  }
1800          }
1801          y2 = y1 - 1;
1802 <        for (j=VideoMonitor.y-1; j>=y1; j--) {
1802 >        for (j=VideoMonitor.mode.y-1; j>=y1; j--) {
1803                  if (memcmp(&the_buffer[j * bytes_per_row], &the_buffer_copy[j * bytes_per_row], bytes_per_row)) {
1804                          y2 = j;
1805                          break;
# Line 1802 | Line 1809 | static void update_display_static(void)
1809  
1810          // Check for first column from left and first column from right that have changed
1811          if (high) {
1812 <                if (depth == 1) {
1813 <                        x1 = VideoMonitor.x - 1;
1812 >                if (VideoMonitor.mode.depth == VDEPTH_1BIT) {
1813 >                        x1 = VideoMonitor.mode.x - 1;
1814                          for (j=y1; j<=y2; j++) {
1815                                  p = &the_buffer[j * bytes_per_row];
1816                                  p2 = &the_buffer_copy[j * bytes_per_row];
# Line 1821 | Line 1828 | static void update_display_static(void)
1828                                  p2 = &the_buffer_copy[j * bytes_per_row];
1829                                  p += bytes_per_row;
1830                                  p2 += bytes_per_row;
1831 <                                for (i=(VideoMonitor.x>>3); i>(x2>>3); i--) {
1831 >                                for (i=(VideoMonitor.mode.x>>3); i>(x2>>3); i--) {
1832                                          p--; p2--;
1833                                          if (*p != *p2) {
1834                                                  x2 = (i << 3) + 7;
# Line 1840 | Line 1847 | static void update_display_static(void)
1847                          }
1848  
1849                  } else {
1850 <                        x1 = VideoMonitor.x;
1850 >                        x1 = VideoMonitor.mode.x;
1851                          for (j=y1; j<=y2; j++) {
1852                                  p = &the_buffer[j * bytes_per_row];
1853                                  p2 = &the_buffer_copy[j * bytes_per_row];
# Line 1858 | Line 1865 | static void update_display_static(void)
1865                                  p2 = &the_buffer_copy[j * bytes_per_row];
1866                                  p += bytes_per_row;
1867                                  p2 += bytes_per_row;
1868 <                                for (i=VideoMonitor.x*bytes_per_pixel; i>x2*bytes_per_pixel; i--) {
1868 >                                for (i=VideoMonitor.mode.x*bytes_per_pixel; i>x2*bytes_per_pixel; i--) {
1869                                          p--;
1870                                          p2--;
1871                                          if (*p != *p2) {
# Line 1881 | Line 1888 | static void update_display_static(void)
1888  
1889          // Refresh display
1890          if (high && wide) {
1891 <                if (have_shm)
1892 <                        XShmPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high, 0);
1891 >                if (drv->have_shm)
1892 >                        XShmPutImage(x_display, drv->w, drv->gc, drv->img, x1, y1, x1, y1, wide, high, 0);
1893                  else
1894 <                        XPutImage(x_display, the_win, the_gc, img, x1, y1, x1, y1, wide, high);
1894 >                        XPutImage(x_display, drv->w, drv->gc, drv->img, x1, y1, x1, y1, wide, high);
1895          }
1896   }
1897  
# Line 1893 | Line 1900 | static void update_display_static(void)
1900   *      Screen refresh functions
1901   */
1902  
1903 < // The specialisations hereunder are meant to enable VOSF with DGA in direct
1904 < // addressing mode in case the address spaces (RAM, ROM, FrameBuffer) could
1905 < // not get mapped correctly with respect to the predetermined host frame
1906 < // buffer base address.
1907 < //
1901 < // Hmm, in other words, when in direct addressing mode and DGA is requested,
1902 < // we first try to "triple allocate" the address spaces according to the real
1903 < // host frame buffer address. Then, if it fails, we will use a temporary
1904 < // frame buffer thus making the real host frame buffer updated when pages
1905 < // of the temp frame buffer are altered.
1906 < //
1907 < // As a side effect, a little speed gain in screen updates could be noticed
1908 < // for other modes than DGA.
1909 < //
1910 < // The following two functions below are inline so that a clever compiler
1911 < // could specialise the code according to the current screen depth and
1912 < // display type. A more clever compiler would the job by itself though...
1913 < // (update_display_vosf is inlined as well)
1903 > // We suggest the compiler to inline the next two functions so that it
1904 > // may specialise the code according to the current screen depth and
1905 > // display type. A clever compiler would do that job by itself though...
1906 >
1907 > // NOTE: update_display_vosf is inlined too
1908  
1909   static inline void possibly_quit_dga_mode()
1910   {
1917 #if defined(ENABLE_XF86_DGA) || defined(ENABLE_FBDEV_DGA)
1911          // Quit DGA mode if requested
1912          if (quit_full_screen) {
1913                  quit_full_screen = false;
1914 < #ifdef ENABLE_XF86_DGA
1915 <                XF86DGADirectVideo(x_display, screen, 0);
1923 < #endif
1924 <                XUngrabPointer(x_display, CurrentTime);
1925 <                XUngrabKeyboard(x_display, CurrentTime);
1926 <                XUnmapWindow(x_display, the_win);
1927 <                XSync(x_display, false);
1914 >                delete drv;
1915 >                drv = NULL;
1916          }
1929 #endif
1917   }
1918  
1919 < static inline void handle_palette_changes(int depth, int display_type)
1919 > static inline void handle_palette_changes(void)
1920   {
1921          LOCK_PALETTE;
1922  
1923          if (palette_changed) {
1924                  palette_changed = false;
1925 <                if (depth == 8) {
1939 <                        XStoreColors(x_display, cmap[0], palette, 256);
1940 <                        XStoreColors(x_display, cmap[1], palette, 256);
1941 <                        XSync(x_display, false);
1942 <                                
1943 < #ifdef ENABLE_XF86_DGA
1944 <                        if (display_type == DISPLAY_DGA) {
1945 <                                current_dga_cmap ^= 1;
1946 <                                XF86DGAInstallColormap(x_display, screen, cmap[current_dga_cmap]);
1947 <                        }
1948 < #endif
1949 <                }
1925 >                drv->update_palette();
1926          }
1927  
1928          UNLOCK_PALETTE;
# Line 1961 | Line 1937 | static void video_refresh_dga(void)
1937          handle_events();
1938          
1939          // Handle palette changes
1940 <        handle_palette_changes(depth, DISPLAY_DGA);
1940 >        handle_palette_changes();
1941   }
1942  
1943   #ifdef ENABLE_VOSF
# Line 1975 | Line 1951 | static void video_refresh_dga_vosf(void)
1951          handle_events();
1952          
1953          // Handle palette changes
1954 <        handle_palette_changes(depth, DISPLAY_DGA);
1954 >        handle_palette_changes();
1955          
1956          // Update display (VOSF variant)
1957          static int tick_counter = 0;
1958          if (++tick_counter >= frame_skip) {
1959                  tick_counter = 0;
1960 <                LOCK_VOSF;
1961 <                update_display_dga_vosf();
1962 <                UNLOCK_VOSF;
1960 >                if (mainBuffer.dirty) {
1961 >                        LOCK_VOSF;
1962 >                        update_display_dga_vosf();
1963 >                        UNLOCK_VOSF;
1964 >                }
1965          }
1966   }
1967   #endif
# Line 1997 | Line 1975 | static void video_refresh_window_vosf(vo
1975          handle_events();
1976          
1977          // Handle palette changes
1978 <        handle_palette_changes(depth, DISPLAY_WINDOW);
1978 >        handle_palette_changes();
1979          
1980          // Update display (VOSF variant)
1981          static int tick_counter = 0;
1982          if (++tick_counter >= frame_skip) {
1983                  tick_counter = 0;
1984 <                LOCK_VOSF;
1985 <                update_display_window_vosf();
1986 <                UNLOCK_VOSF;
1984 >                if (mainBuffer.dirty) {
1985 >                        LOCK_VOSF;
1986 >                        update_display_window_vosf(static_cast<driver_window *>(drv));
1987 >                        UNLOCK_VOSF;
1988 >                        XSync(x_display, false); // Let the server catch up
1989 >                }
1990          }
1991   }
1992   #endif // def ENABLE_VOSF
# Line 2016 | Line 1997 | static void video_refresh_window_static(
1997          handle_events();
1998          
1999          // Handle_palette changes
2000 <        handle_palette_changes(depth, DISPLAY_WINDOW);
2000 >        handle_palette_changes();
2001          
2002          // Update display (static variant)
2003          static int tick_counter = 0;
2004          if (++tick_counter >= frame_skip) {
2005                  tick_counter = 0;
2006 <                update_display_static();
2006 >                update_display_static(static_cast<driver_window *>(drv));
2007          }
2008   }
2009  
# Line 2032 | Line 2013 | static void video_refresh_window_dynamic
2013          handle_events();
2014          
2015          // Handle_palette changes
2016 <        handle_palette_changes(depth, DISPLAY_WINDOW);
2016 >        handle_palette_changes();
2017          
2018          // Update display (dynamic variant)
2019          static int tick_counter = 0;
2020          tick_counter++;
2021 <        update_display_dynamic(tick_counter);
2021 >        update_display_dynamic(tick_counter, static_cast<driver_window *>(drv));
2022   }
2023  
2024  
# Line 2045 | Line 2026 | static void video_refresh_window_dynamic
2026   *  Thread for screen refresh, input handling etc.
2027   */
2028  
2029 < void VideoRefreshInit(void)
2029 > static void VideoRefreshInit(void)
2030   {
2031          // TODO: set up specialised 8bpp VideoRefresh handlers ?
2032          if (display_type == DISPLAY_DGA) {
# Line 2071 | Line 2052 | void VideoRefreshInit(void)
2052  
2053   void VideoRefresh(void)
2054   {
2055 <        // TODO: make main_unix/VideoRefresh call directly video_refresh() ?
2056 <        video_refresh();
2055 >        // We need to check redraw_thread_active to inhibit refreshed during
2056 >        // mode changes on non-threaded platforms
2057 >        if (redraw_thread_active)
2058 >                video_refresh();
2059   }
2060  
2061   #ifdef HAVE_PTHREADS
# Line 2092 | Line 2075 | static void *redraw_func(void *arg)
2075                  ticks++;
2076          }
2077          uint64 end = GetTicks_usec();
2078 <        printf("%Ld ticks in %Ld usec = %Ld ticks/sec\n", ticks, end - start, (end - start) / ticks);
2078 >        // printf("%Ld ticks in %Ld usec = %Ld ticks/sec\n", ticks, end - start, ticks * 1000000 / (end - start));
2079          return NULL;
2080   }
2081   #endif

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