1 /***********************************************************
2 * Rocks'n'Diamonds -- McDuffin Strikes Back! *
3 *----------------------------------------------------------*
4 * ©1995 Artsoft Development *
6 * 33659 Bielefeld-Senne *
7 * Telefon: (0521) 493245 *
8 * eMail: aeglos@valinor.owl.de *
9 * aeglos@uni-paderborn.de *
10 * q99492@pbhrzx.uni-paderborn.de *
11 *----------------------------------------------------------*
13 ***********************************************************/
17 #if defined(PLATFORM_MSDOS)
19 #define AllegroDefaultScreen() (display->screens[display->default_screen])
21 /* allegro driver declarations */
22 DECLARE_GFX_DRIVER_LIST(GFX_DRIVER_VBEAF GFX_DRIVER_VESA2L GFX_DRIVER_VESA1)
23 DECLARE_COLOR_DEPTH_LIST(COLOR_DEPTH_8)
24 DECLARE_DIGI_DRIVER_LIST(DIGI_DRIVER_SB)
25 DECLARE_MIDI_DRIVER_LIST()
26 DECLARE_JOYSTICK_DRIVER_LIST(JOYSTICK_DRIVER_STANDARD)
28 /* allegro global variables */
29 extern volatile int key_shifts;
30 extern int num_joysticks;
31 extern JOYSTICK_INFO joy[];
32 extern int i_love_bill;
34 /* internal variables of msdos.c */
35 static boolean keyboard_auto_repeat = TRUE;
36 static int key_press_state[MAX_SCANCODES];
37 static XEvent event_buffer[MAX_EVENT_BUFFER];
38 static int pending_events;
39 static boolean joystick_event;
40 static boolean mouse_installed = FALSE;
41 static int last_mouse_pos;
42 static int last_mouse_b;
43 static int last_joystick_state;
44 static BITMAP* video_bitmap;
46 static RGB global_colormap[MAX_COLORS];
47 static int global_colormap_entries_used = 0;
49 boolean wait_for_vsync;
52 extern int playing_sounds;
53 extern struct SoundControl playlist[MAX_SOUNDS_PLAYING];
54 extern struct SoundControl emptySoundControl;
57 static BITMAP *Read_PCX_to_AllegroBitmap(char *);
59 static void allegro_init_drivers()
63 for (i=0; i<MAX_EVENT_BUFFER; i++)
64 event_buffer[i].type = 0;
66 for (i=0; i<MAX_SCANCODES; i++)
67 key_press_state[i] = KeyReleaseMask;
69 last_mouse_pos = mouse_pos;
75 /* enable Windows friendly timer mode (already default under Windows) */
80 if (install_mouse() > 0)
81 mouse_installed = TRUE;
83 last_joystick_state = 0;
84 joystick_event = FALSE;
87 static boolean allegro_init_audio()
89 reserve_voices(MAX_SOUNDS_PLAYING, 0);
91 if (install_sound(DIGI_AUTODETECT, MIDI_NONE, NULL) == -1)
92 if (install_sound(DIGI_SB, MIDI_NONE, NULL) == -1)
98 static boolean hide_mouse(Display *display, int x, int y,
99 unsigned int width, unsigned int height)
101 if (mouse_x + display->mouse_ptr->w < x || mouse_x > x + width)
103 if (mouse_y + display->mouse_ptr->h < y || mouse_y > y + height)
111 static void unhide_mouse(Display *display)
114 show_mouse(video_bitmap);
117 static KeySym ScancodeToKeySym(byte scancode)
121 case KEY_ESC: return XK_Escape;
122 case KEY_1: return XK_1;
123 case KEY_2: return XK_2;
124 case KEY_3: return XK_3;
125 case KEY_4: return XK_4;
126 case KEY_5: return XK_5;
127 case KEY_6: return XK_6;
128 case KEY_7: return XK_7;
129 case KEY_8: return XK_8;
130 case KEY_9: return XK_9;
131 case KEY_0: return XK_0;
132 case KEY_MINUS: return XK_minus;
133 case KEY_EQUALS: return XK_equal;
134 case KEY_BACKSPACE: return XK_BackSpace;
135 case KEY_TAB: return XK_Tab;
136 case KEY_Q: return XK_q;
137 case KEY_W: return XK_w;
138 case KEY_E: return XK_e;
139 case KEY_R: return XK_r;
140 case KEY_T: return XK_t;
141 case KEY_Y: return XK_y;
142 case KEY_U: return XK_u;
143 case KEY_I: return XK_i;
144 case KEY_O: return XK_o;
145 case KEY_P: return XK_p;
146 case KEY_OPENBRACE: return XK_braceleft;
147 case KEY_CLOSEBRACE: return XK_braceright;
148 case KEY_ENTER: return XK_Return;
149 case KEY_LCONTROL: return XK_Control_L;
150 case KEY_A: return XK_a;
151 case KEY_S: return XK_s;
152 case KEY_D: return XK_d;
153 case KEY_F: return XK_f;
154 case KEY_G: return XK_g;
155 case KEY_H: return XK_h;
156 case KEY_J: return XK_j;
157 case KEY_K: return XK_k;
158 case KEY_L: return XK_l;
159 case KEY_COLON: return XK_colon;
160 case KEY_QUOTE: return XK_apostrophe;
161 case KEY_TILDE: return XK_asciitilde;
162 case KEY_LSHIFT: return XK_Shift_L;
163 case KEY_BACKSLASH: return XK_backslash;
164 case KEY_Z: return XK_z;
165 case KEY_X: return XK_x;
166 case KEY_C: return XK_c;
167 case KEY_V: return XK_v;
168 case KEY_B: return XK_b;
169 case KEY_N: return XK_n;
170 case KEY_M: return XK_m;
171 case KEY_COMMA: return XK_comma;
172 case KEY_STOP: return XK_period;
173 case KEY_SLASH: return XK_slash;
174 case KEY_RSHIFT: return XK_Shift_R;
175 case KEY_ASTERISK: return XK_KP_Multiply;
176 case KEY_ALT: return XK_Alt_L;
177 case KEY_SPACE: return XK_space;
178 case KEY_CAPSLOCK: return XK_Caps_Lock;
179 case KEY_F1: return XK_F1;
180 case KEY_F2: return XK_F2;
181 case KEY_F3: return XK_F3;
182 case KEY_F4: return XK_F4;
183 case KEY_F5: return XK_F5;
184 case KEY_F6: return XK_F6;
185 case KEY_F7: return XK_F7;
186 case KEY_F8: return XK_F8;
187 case KEY_F9: return XK_F9;
188 case KEY_F10: return XK_F10;
189 case KEY_NUMLOCK: return XK_Num_Lock;
190 case KEY_SCRLOCK: return XK_Scroll_Lock;
191 case KEY_HOME: return XK_Home;
192 case KEY_UP: return XK_Up;
193 case KEY_PGUP: return XK_Page_Up;
194 case KEY_MINUS_PAD: return XK_KP_Subtract;
195 case KEY_LEFT: return XK_Left;
196 case KEY_5_PAD: return XK_KP_5;
197 case KEY_RIGHT: return XK_Right;
198 case KEY_PLUS_PAD: return XK_KP_Add;
199 case KEY_END: return XK_End;
200 case KEY_DOWN: return XK_Down;
201 case KEY_PGDN: return XK_Page_Down;
202 case KEY_INSERT: return XK_Insert;
203 case KEY_DEL: return XK_Delete;
204 case KEY_PRTSCR: return XK_Print;
205 case KEY_F11: return XK_F11;
206 case KEY_F12: return XK_F12;
207 case KEY_LWIN: return XK_Meta_L;
208 case KEY_RWIN: return XK_Meta_R;
209 case KEY_MENU: return XK_Menu;
210 case KEY_PAD: return XK_VoidSymbol;
211 case KEY_RCONTROL: return XK_Control_R;
212 case KEY_ALTGR: return XK_Alt_R;
213 case KEY_SLASH2: return XK_KP_Divide;
214 case KEY_PAUSE: return XK_Pause;
216 case NEW_KEY_BACKSLASH: return XK_backslash;
217 case NEW_KEY_1_PAD: return XK_KP_1;
218 case NEW_KEY_2_PAD: return XK_KP_2;
219 case NEW_KEY_3_PAD: return XK_KP_3;
220 case NEW_KEY_4_PAD: return XK_KP_4;
221 case NEW_KEY_5_PAD: return XK_KP_5;
222 case NEW_KEY_6_PAD: return XK_KP_6;
223 case NEW_KEY_7_PAD: return XK_KP_7;
224 case NEW_KEY_8_PAD: return XK_KP_8;
225 case NEW_KEY_9_PAD: return XK_KP_9;
226 case NEW_KEY_0_PAD: return XK_KP_0;
227 case NEW_KEY_STOP_PAD: return XK_KP_Separator;
228 case NEW_KEY_EQUALS_PAD: return XK_KP_Equal;
229 case NEW_KEY_SLASH_PAD: return XK_KP_Divide;
230 case NEW_KEY_ASTERISK_PAD: return XK_KP_Multiply;
231 case NEW_KEY_ENTER_PAD: return XK_KP_Enter;
233 default: return XK_VoidSymbol;
237 void XMapWindow(Display *display, Window window)
240 unsigned int width, height;
243 x = AllegroDefaultScreen().x;
244 y = AllegroDefaultScreen().y;
245 width = AllegroDefaultScreen().width;
246 height = AllegroDefaultScreen().height;
248 mouse_off = hide_mouse(display, x, y, width, height);
249 blit((BITMAP *)window, video_bitmap, 0, 0, x, y, width, height);
252 unhide_mouse(display);
255 static unsigned long AllocColorCell(int r, int g, int b)
257 byte pixel_mapping = 0;
264 /* try to use existing colors from the global colormap */
265 for (i=0; i<global_colormap_entries_used; i++)
267 if (r == global_colormap[i].r &&
268 g == global_colormap[i].g &&
269 b == global_colormap[i].b) /* color found */
276 if (i == global_colormap_entries_used) /* color not found */
278 if (global_colormap_entries_used < MAX_COLORS)
279 global_colormap_entries_used++;
281 global_colormap[i].r = r;
282 global_colormap[i].g = g;
283 global_colormap[i].b = b;
288 return pixel_mapping;
291 Display *XOpenDisplay(char *display_name)
295 BITMAP *mouse_bitmap = NULL;
297 mouse_bitmap = Read_PCX_to_AllegroBitmap(program.msdos_pointer_filename);
298 if (mouse_bitmap == NULL)
301 screen = malloc(sizeof(Screen));
302 display = malloc(sizeof(Display));
307 screen[0].white_pixel = 0xFF;
308 screen[0].black_pixel = 0x00;
310 screen[0].white_pixel = AllocColorCell(0xFFFF, 0xFFFF, 0xFFFF);
311 screen[0].black_pixel = AllocColorCell(0x0000, 0x0000, 0x0000);
313 screen[0].video_bitmap = NULL;
315 display->default_screen = 0;
316 display->screens = screen;
317 display->mouse_ptr = mouse_bitmap;
320 allegro_init_drivers();
323 /* force Windows 95 to switch to fullscreen mode */
324 set_gfx_mode(GFX_AUTODETECT, 320, 200, 0, 0);
326 set_gfx_mode(GFX_AUTODETECT, XRES, YRES, 0, 0);
331 Window XCreateSimpleWindow(Display *display, Window parent, int x, int y,
332 unsigned int width, unsigned int height,
333 unsigned int border_width, unsigned long border,
334 unsigned long background)
336 video_bitmap = create_video_bitmap(XRES, YRES);
337 clear_to_color(video_bitmap, background);
339 AllegroDefaultScreen().video_bitmap = video_bitmap;
340 AllegroDefaultScreen().x = x;
341 AllegroDefaultScreen().y = y;
342 AllegroDefaultScreen().width = XRES;
343 AllegroDefaultScreen().height = YRES;
345 set_mouse_sprite(display->mouse_ptr);
348 set_mouse_sprite_focus(1, 1);
351 set_mouse_speed(1, 1);
352 set_mouse_range(AllegroDefaultScreen().x + 1,
353 AllegroDefaultScreen().y + 1,
354 AllegroDefaultScreen().x + video.width + 1,
355 AllegroDefaultScreen().y + video.height + 1);
357 show_video_bitmap(video_bitmap);
359 return (Window)video_bitmap;
362 Status XStringListToTextProperty(char **list, int count,
363 XTextProperty *text_prop_return)
369 string = malloc(strlen(list[0] + 1));
370 strcpy(string, list[0]);
371 text_prop_return->value = (unsigned char *)string;
375 text_prop_return = NULL;
380 void XFree(void *data)
386 GC XCreateGC(Display *display, Drawable d, unsigned long value_mask,
390 gcv = malloc(sizeof(XGCValues));
391 gcv->foreground = values->foreground;
392 gcv->background = values->background;
393 gcv->graphics_exposures = values->graphics_exposures;
394 gcv->clip_mask = values->clip_mask;
395 gcv->clip_x_origin = values->clip_x_origin;
396 gcv->clip_y_origin = values->clip_y_origin;
397 gcv->value_mask = value_mask;
401 void XSetClipMask(Display *display, GC gc, Pixmap pixmap)
403 XGCValues *gcv = (XGCValues *)gc;
405 gcv->clip_mask = pixmap;
406 gcv->value_mask |= GCClipMask;
409 void XSetClipOrigin(Display *display, GC gc, int x, int y)
411 XGCValues *gcv = (XGCValues *)gc;
413 gcv->clip_x_origin = x;
414 gcv->clip_x_origin = y;
417 void XFillRectangle(Display *display, Drawable d, GC gc, int x, int y,
418 unsigned int width, unsigned int height)
420 boolean mouse_off = FALSE;
422 if ((BITMAP *)d == video_bitmap)
424 x += AllegroDefaultScreen().x;
425 y += AllegroDefaultScreen().y;
426 freeze_mouse_flag = TRUE;
427 mouse_off = hide_mouse(display, x, y, width, height);
430 rectfill((BITMAP *)d, x, y, x + width - 1, y + height - 1,
431 ((XGCValues *)gc)->foreground);
434 unhide_mouse(display);
436 freeze_mouse_flag = FALSE;
439 Pixmap XCreatePixmap(Display *display, Drawable d, unsigned int width,
440 unsigned int height, unsigned int depth)
442 BITMAP *bitmap = NULL;
444 if (gfx_capabilities & GFX_HW_VRAM_BLIT &&
445 width == gfx.scrollbuffer_width && height == gfx.scrollbuffer_height)
446 bitmap = create_video_bitmap(width, height);
449 bitmap = create_bitmap(width, height);
451 return (Pixmap)bitmap;
454 void XSync(Display *display, Bool discard_events)
456 wait_for_vsync = TRUE;
459 inline void XCopyArea(Display *display, Drawable src, Drawable dest, GC gc,
460 int src_x, int src_y,
461 unsigned int width, unsigned int height,
462 int dest_x, int dest_y)
464 boolean mouse_off = FALSE;
466 if ((BITMAP *)src == video_bitmap)
468 src_x += AllegroDefaultScreen().x;
469 src_y += AllegroDefaultScreen().y;
472 if ((BITMAP *)dest == video_bitmap)
474 dest_x += AllegroDefaultScreen().x;
475 dest_y += AllegroDefaultScreen().y;
476 freeze_mouse_flag = TRUE;
477 mouse_off = hide_mouse(display, dest_x, dest_y, width, height);
482 wait_for_vsync = FALSE;
486 if (((XGCValues *)gc)->value_mask & GCClipMask)
487 masked_blit((BITMAP *)src, (BITMAP *)dest, src_x, src_y, dest_x, dest_y,
490 blit((BITMAP *)src, (BITMAP *)dest, src_x, src_y, dest_x, dest_y,
494 unhide_mouse(display);
496 freeze_mouse_flag = FALSE;
499 static BITMAP *Image_to_AllegroBitmap(Image *image)
502 byte *src_ptr = image->data;
503 byte pixel_mapping[MAX_COLORS];
504 unsigned int depth = 8;
512 /* allocate new allegro bitmap structure */
513 if ((bitmap = create_bitmap_ex(depth, image->width, image->height)) == NULL)
515 errno_pcx = PCX_NoMemory;
521 /* try to use existing colors from the global colormap */
522 for (i=0; i<MAX_COLORS; i++)
529 if (!image->rgb.color_used[i])
534 r = image->rgb.red[i] >> 10;
535 g = image->rgb.green[i] >> 10;
536 b = image->rgb.blue[i] >> 10;
538 for (j=0; j<global_colormap_entries_used; j++)
540 if (r == global_colormap[j].r &&
541 g == global_colormap[j].g &&
542 b == global_colormap[j].b) /* color found */
544 pixel_mapping[i] = j;
549 if (j == global_colormap_entries_used) /* color not found */
551 if (global_colormap_entries_used < MAX_COLORS)
552 global_colormap_entries_used++;
554 global_colormap[j].r = r;
555 global_colormap[j].g = g;
556 global_colormap[j].b = b;
558 pixel_mapping[i] = j;
561 pixel_mapping[i] = AllocColorCell(image->rgb.red[i],
568 /* copy bitmap data */
569 for (y=0; y<image->height; y++)
570 for (x=0; x<image->width; x++)
571 putpixel(bitmap, x, y, pixel_mapping[*src_ptr++]);
576 static BITMAP *Read_PCX_to_AllegroBitmap(char *filename)
581 /* read the graphic file in PCX format to internal image structure */
582 if ((image = Read_PCX_to_Image(filename)) == NULL)
585 /* convert internal image structure to allegro bitmap structure */
586 if ((bitmap = Image_to_AllegroBitmap(image)) == NULL)
589 set_palette(global_colormap);
594 int Read_PCX_to_Pixmap(Display *display, Window window, GC gc, char *filename,
595 Pixmap *pixmap, Pixmap *pixmap_mask)
599 if ((bitmap = Read_PCX_to_AllegroBitmap(filename)) == NULL)
602 *pixmap = (Pixmap)bitmap;
603 *pixmap_mask = (Pixmap)bitmap;
608 int XReadBitmapFile(Display *display, Drawable d, char *filename,
609 unsigned int *width_return, unsigned int *height_return,
610 Pixmap *bitmap_return,
611 int *x_hot_return, int *y_hot_return)
615 if ((bitmap = Read_PCX_to_AllegroBitmap(filename)) == NULL)
616 return BitmapOpenFailed;
618 *width_return = bitmap->w;
619 *height_return = bitmap->h;
622 *bitmap_return = (Pixmap)bitmap;
624 return BitmapSuccess;
627 void XFreePixmap(Display *display, Pixmap pixmap)
629 if (pixmap != DUMMY_MASK &&
630 (is_memory_bitmap((BITMAP *)pixmap) ||
631 is_screen_bitmap((BITMAP *)pixmap)))
632 destroy_bitmap((BITMAP *)pixmap);
635 void XFreeGC(Display *display, GC gc)
639 gcv = (XGCValues *)gc;
644 void XUnmapWindow(Display *display, Window window)
648 void XCloseDisplay(Display *display)
650 BITMAP *bitmap = video_bitmap;
652 if (is_screen_bitmap(bitmap))
653 destroy_bitmap(bitmap);
655 if (display->screens)
656 free(display->screens);
661 /* return to text mode (or DOS box on Windows screen) */
662 set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
665 void XNextEvent(Display *display, XEvent *event_return)
667 while (!pending_events)
670 memcpy(event_return, &event_buffer[pending_events], sizeof(XEvent));
674 static void NewKeyEvent(int key_press_state, KeySym keysym)
678 if (pending_events >= MAX_EVENT_BUFFER)
682 xkey = (XKeyEvent *)&event_buffer[pending_events];
683 xkey->type = key_press_state;
684 xkey->state = (unsigned int)keysym;
687 #define HANDLE_RAW_KB_ALL_KEYS 0
688 #define HANDLE_RAW_KB_MODIFIER_KEYS_ONLY 1
690 static int modifier_scancode[] =
706 static void HandleKeyboardRaw(int mode)
710 for (i=0; i<MAX_SCANCODES; i++)
712 int scancode, new_state, event_type;
715 if (mode == HANDLE_RAW_KB_MODIFIER_KEYS_ONLY)
717 if ((scancode = modifier_scancode[i]) == -1)
723 key_pressed = key[scancode];
724 new_state = (key_pressed ? KeyPressMask : KeyReleaseMask);
725 event_type = (key_pressed ? KeyPress : KeyRelease);
727 if (key_press_state[i] == new_state) /* state not changed */
730 key_press_state[i] = new_state;
732 NewKeyEvent(event_type, ScancodeToKeySym(scancode));
736 static void HandleKeyboardEvent()
740 int key_info = readkey();
741 int scancode = (key_info >> 8);
742 int ascii = (key_info & 0xff);
743 KeySym keysym = ScancodeToKeySym(scancode);
745 if (scancode == KEY_PAD)
747 /* keys on the numeric keypad return just scancode 'KEY_PAD'
748 for some reason, so we must handle them separately */
750 if (ascii >= '0' && ascii <= '9')
751 keysym = XK_KP_0 + (KeySym)(ascii - '0');
752 else if (ascii == '.')
753 keysym = XK_KP_Separator;
755 else if (ascii >= ' ' && ascii <= 'Z')
756 keysym = XK_space + (KeySym)(ascii - ' ');
757 else if (ascii == '^')
758 keysym = XK_asciicircum;
759 else if (ascii == '_')
760 keysym = XK_underscore;
761 else if (ascii == 'Ä')
762 keysym = XK_Adiaeresis;
763 else if (ascii == 'Ö')
764 keysym = XK_Odiaeresis;
765 else if (ascii == 'Ü')
766 keysym = XK_Udiaeresis;
767 else if (ascii == 'ä')
768 keysym = XK_adiaeresis;
769 else if (ascii == 'ö')
770 keysym = XK_odiaeresis;
771 else if (ascii == 'ü')
772 keysym = XK_udiaeresis;
773 else if (ascii == 'ß')
776 NewKeyEvent(KeyPress, keysym);
778 else if (key_shifts & (KB_SHIFT_FLAG | KB_CTRL_FLAG | KB_ALT_FLAG))
780 /* the allegro function keypressed() does not give us single pressed
781 modifier keys, so we must detect them with the internal global
782 allegro variable 'key_shifts' and then handle them separately */
784 HandleKeyboardRaw(HANDLE_RAW_KB_MODIFIER_KEYS_ONLY);
788 int XPending(Display *display)
790 XButtonEvent *xbutton;
791 XMotionEvent *xmotion;
794 /* When using 'HandleKeyboardRaw()', keyboard input is also stored in
795 the allegro keyboard input buffer and would be available a second
796 time by calling 'HandleKeyboardEvent()'. To avoid double keyboard
797 events, the allegro function 'clear_keybuf()' must be called each
798 time when switching from calling 'HandleKeyboardRaw()' to calling
799 'HandleKeyboardEvent()' to get keyboard input, which is actually
800 done by 'XAutoRepeatOn()' which sets keyboard_auto_repeat to TRUE. */
803 if (keyboard_auto_repeat)
804 HandleKeyboardEvent();
806 HandleKeyboardRaw(HANDLE_RAW_KB_ALL_KEYS);
808 /* mouse motion event */
809 if (mouse_pos != last_mouse_pos)
811 last_mouse_pos = mouse_pos;
813 xmotion = (XMotionEvent *)&event_buffer[pending_events];
814 xmotion->type = MotionNotify;
815 xmotion->x = mouse_x - AllegroDefaultScreen().x;
816 xmotion->y = mouse_y - AllegroDefaultScreen().y;
819 /* mouse button event */
820 if (mouse_b != last_mouse_b)
822 for (i=0; i<3; i++) /* check all three mouse buttons */
824 int bitmask = (1 << i);
826 if ((last_mouse_b & bitmask) != (mouse_b & bitmask))
828 int mapping[3] = { 1, 3, 2 };
831 xbutton = (XButtonEvent *)&event_buffer[pending_events];
832 xbutton->type = (mouse_b & bitmask ? ButtonPress : ButtonRelease);
833 xbutton->button = mapping[i];
834 xbutton->x = mouse_x - AllegroDefaultScreen().x;
835 xbutton->y = mouse_y - AllegroDefaultScreen().y;
838 last_mouse_b = mouse_b;
841 return pending_events;
844 KeySym XLookupKeysym(XKeyEvent *key_event, int index)
846 return key_event->state;
849 int XLookupString(XKeyEvent *key_event, char *buffer, int buffer_size,
850 KeySym *key, XComposeStatus *compose)
852 *key = key_event->state;
856 void XSetForeground(Display *display, GC gc, unsigned long pixel)
858 XGCValues *gcv = (XGCValues *)gc;
860 gcv->foreground = pixel;
863 void XDrawLine(Display *display, Drawable d, GC gc,
864 int x1, int y1, int x2, int y2)
866 XGCValues *gcv = (XGCValues *)gc;
867 boolean mouse_off = FALSE;
869 if ((BITMAP *)d == video_bitmap)
871 x1 += AllegroDefaultScreen().x;
872 y1 += AllegroDefaultScreen().y;
873 x2 += AllegroDefaultScreen().x;
874 y2 += AllegroDefaultScreen().y;
875 freeze_mouse_flag = TRUE;
876 mouse_off = hide_mouse(display, MIN(x1, x2), MIN(y1, y2),
877 MAX(x1, x2) - MIN(x1, x2),
878 MAX(y1, y2) - MIN(y1, y2));
881 line((BITMAP *)d, x1, y1, x2, y2, gcv->foreground);
884 unhide_mouse(display);
886 freeze_mouse_flag = FALSE;
889 void XDestroyImage(XImage *ximage)
893 void XDestroyWindow(Display *display, Window window)
897 Bool XQueryPointer(Display *display, Window window,
898 Window *root, Window *child, int *root_x, int *root_y,
899 int *win_x, int *win_y, unsigned int *mask)
901 *win_x = mouse_x - AllegroDefaultScreen().x;
902 *win_y = mouse_y - AllegroDefaultScreen().y;
907 void XAutoRepeatOn(Display *display)
909 keyboard_auto_repeat = TRUE;
913 void XAutoRepeatOff(Display *display)
915 keyboard_auto_repeat = FALSE;
918 boolean MSDOSOpenAudio(void)
920 return allegro_init_audio();
923 void MSDOSCloseAudio(void)
925 /* nothing to be done here */
928 void NetworkServer(int port, int serveronly)
930 Error(ERR_WARN, "networking not supported in DOS version");
933 #endif /* PLATFORM_MSDOS */