1 /***********************************************************
2 * Artsoft Retro-Game Library *
3 *----------------------------------------------------------*
4 * (c) 1994-2002 Artsoft Entertainment *
6 * Detmolder Strasse 189 *
9 * e-mail: info@artsoft.org *
10 *----------------------------------------------------------*
12 ***********************************************************/
19 #if defined(PLATFORM_MSDOS)
30 /* ========================================================================= */
31 /* exported variables */
32 /* ========================================================================= */
34 struct ProgramInfo program;
35 struct OptionInfo options;
36 struct VideoSystemInfo video;
37 struct AudioSystemInfo audio;
39 struct ArtworkInfo artwork;
40 struct JoystickInfo joystick;
41 struct SetupInfo setup;
43 LevelDirTree *leveldir_first = NULL;
44 LevelDirTree *leveldir_current = NULL;
47 Display *display = NULL;
48 Visual *visual = NULL;
52 DrawWindow *window = NULL;
53 DrawBuffer *backbuffer = NULL;
54 DrawBuffer *drawto = NULL;
56 int button_status = MB_NOT_PRESSED;
57 boolean motion_status = FALSE;
59 int redraw_mask = REDRAW_NONE;
65 /* ========================================================================= */
66 /* init/close functions */
67 /* ========================================================================= */
69 void InitProgramInfo(char *argv0,
70 char *userdata_directory, char *program_title,
71 char *window_title, char *icon_title,
72 char *x11_icon_filename, char *x11_iconmask_filename,
73 char *msdos_cursor_filename,
74 char *cookie_prefix, char *filename_prefix,
77 program.command_basename =
78 (strrchr(argv0, '/') ? strrchr(argv0, '/') + 1 : argv0);
80 program.userdata_directory = userdata_directory;
81 program.program_title = program_title;
82 program.window_title = window_title;
83 program.icon_title = icon_title;
84 program.x11_icon_filename = x11_icon_filename;
85 program.x11_iconmask_filename = x11_iconmask_filename;
86 program.msdos_cursor_filename = msdos_cursor_filename;
88 program.cookie_prefix = cookie_prefix;
89 program.filename_prefix = filename_prefix;
91 program.version_major = VERSION_MAJOR(program_version);
92 program.version_minor = VERSION_MINOR(program_version);
93 program.version_patch = VERSION_PATCH(program_version);
96 void InitExitFunction(void (*exit_function)(int))
98 program.exit_function = exit_function;
100 /* set signal handlers to custom exit function */
101 signal(SIGINT, exit_function);
102 signal(SIGTERM, exit_function);
104 #if defined(TARGET_SDL)
105 /* set exit function to automatically cleanup SDL stuff after exit() */
110 void InitPlatformDependentStuff(void)
112 #if defined(PLATFORM_MSDOS)
117 #if defined(TARGET_SDL)
118 if (SDL_Init(SDL_INIT_EVENTTHREAD | SDL_INIT_NOPARACHUTE) < 0)
119 Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError());
123 void ClosePlatformDependentStuff(void)
125 #if defined(PLATFORM_MSDOS)
130 void InitGfxFieldInfo(int sx, int sy, int sxsize, int sysize,
131 int real_sx, int real_sy,
132 int full_sxsize, int full_sysize,
133 Bitmap *field_save_buffer)
139 gfx.real_sx = real_sx;
140 gfx.real_sy = real_sy;
141 gfx.full_sxsize = full_sxsize;
142 gfx.full_sysize = full_sysize;
144 gfx.field_save_buffer = field_save_buffer;
146 gfx.background_bitmap = NULL;
147 gfx.background_bitmap_mask = REDRAW_NONE;
149 SetDrawDeactivationMask(REDRAW_NONE); /* do not deactivate drawing */
150 SetDrawBackgroundMask(REDRAW_NONE); /* deactivate masked drawing */
153 void InitGfxDoor1Info(int dx, int dy, int dxsize, int dysize)
161 void InitGfxDoor2Info(int vx, int vy, int vxsize, int vysize)
169 void InitGfxScrollbufferInfo(int scrollbuffer_width, int scrollbuffer_height)
171 /* currently only used by MSDOS code to alloc VRAM buffer, if available */
172 gfx.scrollbuffer_width = scrollbuffer_width;
173 gfx.scrollbuffer_height = scrollbuffer_height;
176 void SetDrawDeactivationMask(int draw_deactivation_mask)
178 gfx.draw_deactivation_mask = draw_deactivation_mask;
181 void SetDrawBackgroundMask(int draw_background_mask)
183 gfx.draw_background_mask = draw_background_mask;
186 static void DrawBitmapFromTile(Bitmap *bitmap, Bitmap *tile,
187 int dest_x, int dest_y, int width, int height)
189 int bitmap_xsize = width;
190 int bitmap_ysize = height;
191 int tile_xsize = tile->width;
192 int tile_ysize = tile->height;
193 int tile_xsteps = (bitmap_xsize + tile_xsize - 1) / tile_xsize;
194 int tile_ysteps = (bitmap_ysize + tile_ysize - 1) / tile_ysize;
197 for (y = 0; y < tile_ysteps; y++)
199 for (x = 0; x < tile_xsteps; x++)
201 int draw_x = dest_x + x * tile_xsize;
202 int draw_y = dest_y + y * tile_ysize;
203 int draw_xsize = MIN(tile_xsize, bitmap_xsize - x * tile_xsize);
204 int draw_ysize = MIN(tile_ysize, bitmap_ysize - y * tile_ysize);
206 BlitBitmap(tile, bitmap, 0, 0, draw_xsize, draw_ysize, draw_x, draw_y);
211 void SetBackgroundBitmap(Bitmap *background_bitmap_tile, int mask)
213 static Bitmap *main_bitmap_tile = NULL;
214 static Bitmap *door_bitmap_tile = NULL;
216 if (mask == REDRAW_FIELD)
218 if (background_bitmap_tile == main_bitmap_tile)
219 return; /* main background tile has not changed */
221 main_bitmap_tile = background_bitmap_tile;
223 else if (mask == REDRAW_DOOR_1)
225 if (background_bitmap_tile == door_bitmap_tile)
226 return; /* main background tile has not changed */
228 door_bitmap_tile = background_bitmap_tile;
230 else /* should not happen */
233 if (background_bitmap_tile)
234 gfx.background_bitmap_mask |= mask;
236 gfx.background_bitmap_mask &= ~mask;
238 if (gfx.background_bitmap == NULL)
239 gfx.background_bitmap = CreateBitmap(video.width, video.height,
242 if (background_bitmap_tile == NULL) /* empty background requested */
245 if (mask == REDRAW_FIELD)
246 DrawBitmapFromTile(gfx.background_bitmap, background_bitmap_tile,
247 gfx.real_sx, gfx.real_sy,
248 gfx.full_sxsize, gfx.full_sysize);
250 DrawBitmapFromTile(gfx.background_bitmap, background_bitmap_tile,
252 gfx.dxsize, gfx.dysize);
255 void SetMainBackgroundBitmap(Bitmap *background_bitmap_tile)
257 SetBackgroundBitmap(background_bitmap_tile, REDRAW_FIELD);
260 void SetDoorBackgroundBitmap(Bitmap *background_bitmap_tile)
262 SetBackgroundBitmap(background_bitmap_tile, REDRAW_DOOR_1);
266 /* ========================================================================= */
267 /* video functions */
268 /* ========================================================================= */
270 inline static int GetRealDepth(int depth)
272 return (depth == DEFAULT_DEPTH ? video.default_depth : depth);
275 inline static void sysFillRectangle(Bitmap *bitmap, int x, int y,
276 int width, int height, Pixel color)
278 #if defined(TARGET_SDL)
279 SDLFillRectangle(bitmap, x, y, width, height, color);
281 X11FillRectangle(bitmap, x, y, width, height, color);
285 inline static void sysCopyArea(Bitmap *src_bitmap, Bitmap *dst_bitmap,
286 int src_x, int src_y, int width, int height,
287 int dst_x, int dst_y, int mask_mode)
289 #if defined(TARGET_SDL)
290 SDLCopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height,
291 dst_x, dst_y, mask_mode);
293 X11CopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height,
294 dst_x, dst_y, mask_mode);
298 inline void InitVideoDisplay(void)
300 #if defined(TARGET_SDL)
301 SDLInitVideoDisplay();
303 X11InitVideoDisplay();
307 inline void CloseVideoDisplay(void)
309 KeyboardAutoRepeatOn();
311 #if defined(TARGET_SDL)
312 SDL_QuitSubSystem(SDL_INIT_VIDEO);
315 XCloseDisplay(display);
319 inline void InitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window,
320 int width, int height, int depth,
324 video.height = height;
325 video.depth = GetRealDepth(depth);
326 video.fullscreen_available = FULLSCREEN_STATUS;
327 video.fullscreen_enabled = FALSE;
329 #if defined(TARGET_SDL)
330 SDLInitVideoBuffer(backbuffer, window, fullscreen);
332 X11InitVideoBuffer(backbuffer, window);
336 inline Bitmap *CreateBitmapStruct(void)
338 #if defined(TARGET_SDL)
339 return checked_calloc(sizeof(struct SDLSurfaceInfo));
341 return checked_calloc(sizeof(struct X11DrawableInfo));
345 inline Bitmap *CreateBitmap(int width, int height, int depth)
347 Bitmap *new_bitmap = CreateBitmapStruct();
348 int real_depth = GetRealDepth(depth);
350 #if defined(TARGET_SDL)
351 SDLCreateBitmapContent(new_bitmap, width, height, real_depth);
353 X11CreateBitmapContent(new_bitmap, width, height, real_depth);
356 new_bitmap->width = width;
357 new_bitmap->height = height;
362 inline static void FreeBitmapPointers(Bitmap *bitmap)
367 #if defined(TARGET_SDL)
368 SDLFreeBitmapPointers(bitmap);
370 X11FreeBitmapPointers(bitmap);
373 checked_free(bitmap->source_filename);
374 bitmap->source_filename = NULL;
377 inline static void TransferBitmapPointers(Bitmap *src_bitmap,
380 if (src_bitmap == NULL || dst_bitmap == NULL)
383 FreeBitmapPointers(dst_bitmap);
385 *dst_bitmap = *src_bitmap;
388 inline void FreeBitmap(Bitmap *bitmap)
393 FreeBitmapPointers(bitmap);
398 inline void CloseWindow(DrawWindow *window)
400 #if defined(TARGET_X11)
401 if (window->drawable)
403 XUnmapWindow(display, window->drawable);
404 XDestroyWindow(display, window->drawable);
407 XFreeGC(display, window->gc);
411 static inline boolean CheckDrawingArea(int x, int y, int width, int height,
414 if (draw_mask == REDRAW_NONE)
417 if (draw_mask & REDRAW_ALL)
420 if ((draw_mask & REDRAW_FIELD) && x < gfx.real_sx + gfx.full_sxsize)
423 if ((draw_mask & REDRAW_DOOR_1) && x >= gfx.dx && y < gfx.dy + gfx.dysize)
426 if ((draw_mask & REDRAW_DOOR_2) && x >= gfx.dx && y >= gfx.vy)
432 inline boolean DrawingDeactivated(int x, int y, int width, int height)
434 return CheckDrawingArea(x, y, width, height, gfx.draw_deactivation_mask);
437 inline boolean DrawingOnBackground(int x, int y)
439 return ((gfx.draw_background_mask & gfx.background_bitmap_mask) &&
440 CheckDrawingArea(x, y, 1, 1, gfx.draw_background_mask));
443 inline void BlitBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap,
444 int src_x, int src_y, int width, int height,
445 int dst_x, int dst_y)
447 if (DrawingDeactivated(dst_x, dst_y, width, height))
450 sysCopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height,
451 dst_x, dst_y, BLIT_OPAQUE);
454 inline void FillRectangle(Bitmap *bitmap, int x, int y, int width, int height,
457 if (DrawingDeactivated(x, y, width, height))
460 sysFillRectangle(bitmap, x, y, width, height, color);
463 inline void ClearRectangle(Bitmap *bitmap, int x, int y, int width, int height)
465 FillRectangle(bitmap, x, y, width, height, BLACK_PIXEL);
468 inline void ClearRectangleOnBackground(Bitmap *bitmap, int x, int y,
469 int width, int height)
471 if (DrawingOnBackground(x, y))
472 BlitBitmap(gfx.background_bitmap, bitmap, x, y, width, height, x, y);
474 ClearRectangle(bitmap, x, y, width, height);
479 static GC last_clip_gc = 0; /* needed for XCopyArea() through clip mask */
483 inline void SetClipMask(Bitmap *bitmap, GC clip_gc, Pixmap clip_pixmap)
485 #if defined(TARGET_X11)
488 bitmap->clip_gc = clip_gc;
489 XSetClipMask(display, bitmap->clip_gc, clip_pixmap);
492 last_clip_gc = clip_gc;
497 inline void SetClipOrigin(Bitmap *bitmap, GC clip_gc, int clip_x, int clip_y)
499 #if defined(TARGET_X11)
502 bitmap->clip_gc = clip_gc;
503 XSetClipOrigin(display, bitmap->clip_gc, clip_x, clip_y);
506 last_clip_gc = clip_gc;
511 inline void BlitBitmapMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap,
512 int src_x, int src_y,
513 int width, int height,
514 int dst_x, int dst_y)
516 if (DrawingDeactivated(dst_x, dst_y, width, height))
519 sysCopyArea(src_bitmap, dst_bitmap, src_x, src_y, width, height,
520 dst_x, dst_y, BLIT_MASKED);
523 inline void BlitBitmapOnBackground(Bitmap *src_bitmap, Bitmap *dst_bitmap,
524 int src_x, int src_y,
525 int width, int height,
526 int dst_x, int dst_y)
528 if (DrawingOnBackground(dst_x, dst_y))
530 /* draw background */
531 BlitBitmap(gfx.background_bitmap, dst_bitmap, dst_x, dst_y, width, height,
534 /* draw foreground */
535 SetClipOrigin(src_bitmap, src_bitmap->stored_clip_gc,
536 dst_x - src_x, dst_y - src_y);
537 BlitBitmapMasked(src_bitmap, dst_bitmap, src_x, src_y, width, height,
541 BlitBitmap(src_bitmap, dst_bitmap, src_x, src_y, width, height,
545 inline void DrawSimpleWhiteLine(Bitmap *bitmap, int from_x, int from_y,
548 #if defined(TARGET_SDL)
549 SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, WHITE_PIXEL);
551 X11DrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, WHITE_PIXEL);
555 #if !defined(TARGET_X11_NATIVE)
556 inline void DrawLine(Bitmap *bitmap, int from_x, int from_y,
557 int to_x, int to_y, Pixel pixel, int line_width)
561 for (x = 0; x < line_width; x++)
563 for (y = 0; y < line_width; y++)
565 int dx = x - line_width / 2;
566 int dy = y - line_width / 2;
568 if ((x == 0 && y == 0) ||
569 (x == 0 && y == line_width - 1) ||
570 (x == line_width - 1 && y == 0) ||
571 (x == line_width - 1 && y == line_width - 1))
574 #if defined(TARGET_SDL)
576 from_x + dx, from_y + dy, to_x + dx, to_y + dy, pixel);
577 #elif defined(TARGET_ALLEGRO)
578 AllegroDrawLine(bitmap->drawable, from_x + dx, from_y + dy,
579 to_x + dx, to_y + dy, pixel);
586 inline void DrawLines(Bitmap *bitmap, struct XY *points, int num_points,
589 #if !defined(TARGET_X11_NATIVE)
593 for (i = 0; i < num_points - 1; i++)
594 DrawLine(bitmap, points[i].x, points[i].y,
595 points[i + 1].x, points[i + 1].y, pixel, line_width);
598 SDLDrawLines(bitmap->surface, points, num_points, pixel);
601 XSetForeground(display, bitmap->line_gc[1], pixel);
602 XDrawLines(display, bitmap->drawable, bitmap->line_gc[1],
603 (XPoint *)points, num_points, CoordModeOrigin);
607 inline Pixel GetPixel(Bitmap *bitmap, int x, int y)
609 if (x < 0 || x >= bitmap->width ||
610 y < 0 || y >= bitmap->height)
613 #if defined(TARGET_SDL)
614 return SDLGetPixel(bitmap, x, y);
615 #elif defined(TARGET_ALLEGRO)
616 return AllegroGetPixel(bitmap->drawable, x, y);
618 return X11GetPixel(bitmap, x, y);
622 inline Pixel GetPixelFromRGB(Bitmap *bitmap, unsigned int color_r,
623 unsigned int color_g, unsigned int color_b)
625 #if defined(TARGET_SDL)
626 return SDL_MapRGB(bitmap->surface->format, color_r, color_g, color_b);
627 #elif defined(TARGET_ALLEGRO)
628 return AllegroAllocColorCell(color_r << 8, color_g << 8, color_b << 8);
630 return X11GetPixelFromRGB(color_r, color_g, color_b);
634 inline Pixel GetPixelFromRGBcompact(Bitmap *bitmap, unsigned int color)
636 unsigned int color_r = (color >> 16) & 0xff;
637 unsigned int color_g = (color >> 8) & 0xff;
638 unsigned int color_b = (color >> 0) & 0xff;
640 return GetPixelFromRGB(bitmap, color_r, color_g, color_b);
643 /* execute all pending screen drawing operations */
644 inline void FlushDisplay(void)
651 /* execute and wait for all pending screen drawing operations */
652 inline void SyncDisplay(void)
655 XSync(display, FALSE);
659 inline void KeyboardAutoRepeatOn(void)
661 #if defined(TARGET_SDL)
662 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY / 2,
663 SDL_DEFAULT_REPEAT_INTERVAL / 2);
664 SDL_EnableUNICODE(1);
667 XAutoRepeatOn(display);
671 inline void KeyboardAutoRepeatOff(void)
673 #if defined(TARGET_SDL)
674 SDL_EnableKeyRepeat(0, SDL_DEFAULT_REPEAT_INTERVAL);
675 SDL_EnableUNICODE(0);
678 XAutoRepeatOff(display);
682 inline boolean PointerInWindow(DrawWindow *window)
684 #if defined(TARGET_SDL)
692 /* if XQueryPointer() returns False, the pointer
693 is not on the same screen as the specified window */
694 return XQueryPointer(display, window->drawable, &root, &child,
695 &root_x, &root_y, &win_x, &win_y, &mask);
699 inline boolean SetVideoMode(boolean fullscreen)
701 #if defined(TARGET_SDL)
702 return SDLSetVideoMode(&backbuffer, fullscreen);
704 boolean success = TRUE;
706 if (fullscreen && video.fullscreen_available)
708 Error(ERR_WARN, "fullscreen not available in X11 version");
710 /* display error message only once */
711 video.fullscreen_available = FALSE;
720 inline boolean ChangeVideoModeIfNeeded(boolean fullscreen)
722 #if defined(TARGET_SDL)
723 if ((fullscreen && !video.fullscreen_enabled && video.fullscreen_available)||
724 (!fullscreen && video.fullscreen_enabled))
725 fullscreen = SetVideoMode(fullscreen);
731 Bitmap *LoadImage(char *filename)
735 #if defined(TARGET_SDL)
736 new_bitmap = SDLLoadImage(filename);
738 new_bitmap = X11LoadImage(filename);
742 new_bitmap->source_filename = getStringCopy(filename);
747 Bitmap *LoadCustomImage(char *basename)
749 char *filename = getCustomImageFilename(basename);
752 if (filename == NULL)
753 Error(ERR_EXIT, "LoadCustomImage(): cannot find file '%s'", basename);
755 if ((new_bitmap = LoadImage(filename)) == NULL)
756 Error(ERR_EXIT, "LoadImage() failed: %s", GetError());
761 void ReloadCustomImage(Bitmap *bitmap, char *basename)
763 char *filename = getCustomImageFilename(basename);
766 if (filename == NULL) /* (should never happen) */
768 Error(ERR_WARN, "ReloadCustomImage(): cannot find file '%s'", basename);
772 if (strcmp(filename, bitmap->source_filename) == 0)
774 /* The old and new image are the same (have the same filename and path).
775 This usually means that this image does not exist in this graphic set
776 and a fallback to the existing image is done. */
781 if ((new_bitmap = LoadImage(filename)) == NULL)
783 Error(ERR_WARN, "LoadImage() failed: %s", GetError());
787 if (bitmap->width != new_bitmap->width ||
788 bitmap->height != new_bitmap->height)
790 Error(ERR_WARN, "ReloadCustomImage: new image '%s' has wrong dimensions",
792 FreeBitmap(new_bitmap);
796 TransferBitmapPointers(new_bitmap, bitmap);
800 Bitmap *ZoomBitmap(Bitmap *src_bitmap, int zoom_width, int zoom_height)
802 Bitmap *dst_bitmap = CreateBitmap(zoom_width, zoom_height, DEFAULT_DEPTH);
804 #if defined(TARGET_SDL)
805 SDLZoomBitmap(src_bitmap, dst_bitmap);
807 X11ZoomBitmap(src_bitmap, dst_bitmap);
813 void CreateBitmapWithSmallBitmaps(Bitmap *src_bitmap)
815 Bitmap *tmp_bitmap, *tmp_bitmap_2, *tmp_bitmap_8;
816 int src_width, src_height;
817 int tmp_width, tmp_height;
819 src_width = src_bitmap->width;
820 src_height = src_bitmap->height;
822 tmp_width = src_width;
823 tmp_height = src_height + (src_height + 1) / 2; /* prevent odd height */
825 tmp_bitmap = CreateBitmap(tmp_width, tmp_height, DEFAULT_DEPTH);
827 tmp_bitmap_2 = ZoomBitmap(src_bitmap, src_width / 2, src_height / 2);
828 tmp_bitmap_8 = ZoomBitmap(src_bitmap, src_width / 8, src_height / 8);
830 BlitBitmap(src_bitmap, tmp_bitmap, 0, 0, src_width, src_height, 0, 0);
831 BlitBitmap(tmp_bitmap_2, tmp_bitmap, 0, 0, src_width / 2, src_height / 2,
833 BlitBitmap(tmp_bitmap_8, tmp_bitmap, 0, 0, src_width / 8, src_height / 8,
834 3 * src_width / 4, src_height);
836 FreeBitmap(tmp_bitmap_2);
837 FreeBitmap(tmp_bitmap_8);
839 #if defined(TARGET_SDL)
840 /* !!! what about the old src_bitmap->surface ??? FIX ME !!! */
841 src_bitmap->surface = tmp_bitmap->surface;
842 tmp_bitmap->surface = NULL;
844 /* !!! see above !!! */
845 src_bitmap->drawable = tmp_bitmap->drawable;
846 tmp_bitmap->drawable = None;
849 src_bitmap->height = tmp_bitmap->height;
851 FreeBitmap(tmp_bitmap);
855 /* ------------------------------------------------------------------------- */
856 /* mouse pointer functions */
857 /* ------------------------------------------------------------------------- */
859 #if !defined(PLATFORM_MSDOS)
861 static const char *cursor_image_playfield[] =
863 /* width height num_colors chars_per_pixel */
872 /* some people complained about a "white dot" on the screen and thought it
873 was a graphical error... OK, let's just remove the whole pointer :-) */
919 #if defined(TARGET_SDL)
920 static const int cursor_bit_order = BIT_ORDER_MSB;
921 #elif defined(TARGET_X11_NATIVE)
922 static const int cursor_bit_order = BIT_ORDER_LSB;
925 static struct MouseCursorInfo *get_cursor_from_image(const char **image)
927 struct MouseCursorInfo *cursor;
928 boolean bit_order_msb = (cursor_bit_order == BIT_ORDER_MSB);
929 int header_lines = 4;
932 cursor = checked_calloc(sizeof(struct MouseCursorInfo));
934 sscanf(image[0], " %d %d ", &cursor->width, &cursor->height);
937 for (y = 0; y < cursor->width; y++)
939 for (x = 0; x < cursor->height; x++)
942 int bit_mask = 0x01 << (bit_order_msb ? 7 - bit_nr : bit_nr );
947 cursor->data[i] = cursor->mask[i] = 0;
950 switch (image[header_lines + y][x])
953 cursor->data[i] |= bit_mask;
954 cursor->mask[i] |= bit_mask;
958 cursor->mask[i] |= bit_mask;
967 sscanf(image[header_lines + y], "%d,%d", &cursor->hot_x, &cursor->hot_y);
971 #endif /* !PLATFORM_MSDOS */
973 void SetMouseCursor(int mode)
975 #if !defined(PLATFORM_MSDOS)
976 static struct MouseCursorInfo *cursor_playfield = NULL;
978 if (cursor_playfield == NULL)
979 cursor_playfield = get_cursor_from_image(cursor_image_playfield);
981 #if defined(TARGET_SDL)
982 SDLSetMouseCursor(mode == CURSOR_PLAYFIELD ? cursor_playfield : NULL);
983 #elif defined(TARGET_X11_NATIVE)
984 X11SetMouseCursor(mode == CURSOR_PLAYFIELD ? cursor_playfield : NULL);
990 /* ========================================================================= */
991 /* audio functions */
992 /* ========================================================================= */
994 inline void OpenAudio(void)
996 /* always start with reliable default values */
997 audio.sound_available = FALSE;
998 audio.music_available = FALSE;
999 audio.loops_available = FALSE;
1001 audio.sound_enabled = FALSE;
1002 audio.sound_deactivated = FALSE;
1004 audio.mixer_pipe[0] = audio.mixer_pipe[1] = 0;
1005 audio.mixer_pid = 0;
1006 audio.device_name = NULL;
1007 audio.device_fd = -1;
1009 audio.num_channels = 0;
1010 audio.music_channel = 0;
1011 audio.first_sound_channel = 0;
1013 #if defined(TARGET_SDL)
1015 #elif defined(PLATFORM_UNIX)
1017 #elif defined(PLATFORM_MSDOS)
1022 inline void CloseAudio(void)
1024 #if defined(TARGET_SDL)
1026 #elif defined(PLATFORM_UNIX)
1028 #elif defined(PLATFORM_MSDOS)
1032 audio.sound_enabled = FALSE;
1035 inline void SetAudioMode(boolean enabled)
1037 if (!audio.sound_available)
1040 audio.sound_enabled = enabled;
1044 /* ========================================================================= */
1045 /* event functions */
1046 /* ========================================================================= */
1048 inline void InitEventFilter(EventFilter filter_function)
1050 #if defined(TARGET_SDL)
1051 /* set event filter to filter out certain events */
1052 SDL_SetEventFilter(filter_function);
1056 inline boolean PendingEvent(void)
1058 #if defined(TARGET_SDL)
1059 return (SDL_PollEvent(NULL) ? TRUE : FALSE);
1061 return (XPending(display) ? TRUE : FALSE);
1065 inline void NextEvent(Event *event)
1067 #if defined(TARGET_SDL)
1068 SDLNextEvent(event);
1070 XNextEvent(display, event);
1074 inline Key GetEventKey(KeyEvent *event, boolean with_modifiers)
1076 #if defined(TARGET_SDL)
1078 printf("unicode == '%d', sym == '%d', mod == '0x%04x'\n",
1079 (int)event->keysym.unicode,
1080 (int)event->keysym.sym,
1081 (int)SDL_GetModState());
1084 if (with_modifiers &&
1085 event->keysym.unicode > 0x0000 &&
1086 event->keysym.unicode < 0x2000)
1087 return event->keysym.unicode;
1089 return event->keysym.sym;
1092 printf("with modifiers == '0x%04x', without modifiers == '0x%04x'\n",
1093 (int)XLookupKeysym(event, event->state),
1094 (int)XLookupKeysym(event, 0));
1098 return XLookupKeysym(event, event->state);
1100 return XLookupKeysym(event, 0);
1104 inline KeyMod HandleKeyModState(Key key, int key_status)
1106 static KeyMod current_modifiers = KMOD_None;
1108 #if !defined(TARGET_SDL)
1109 if (key != KSYM_UNDEFINED) /* new key => check for modifier key change */
1111 KeyMod new_modifier = KMOD_None;
1116 new_modifier = KMOD_Shift_L;
1119 new_modifier = KMOD_Shift_R;
1121 case KSYM_Control_L:
1122 new_modifier = KMOD_Control_L;
1124 case KSYM_Control_R:
1125 new_modifier = KMOD_Control_R;
1128 new_modifier = KMOD_Meta_L;
1131 new_modifier = KMOD_Meta_R;
1134 new_modifier = KMOD_Alt_L;
1137 new_modifier = KMOD_Alt_R;
1143 if (key_status == KEY_PRESSED)
1144 current_modifiers |= new_modifier;
1146 current_modifiers &= ~new_modifier;
1150 return current_modifiers;
1153 inline KeyMod GetKeyModState()
1155 #if defined(TARGET_SDL)
1156 return (KeyMod)SDL_GetModState();
1158 return HandleKeyModState(KSYM_UNDEFINED, 0);
1162 inline boolean CheckCloseWindowEvent(ClientMessageEvent *event)
1164 if (event->type != EVENT_CLIENTMESSAGE)
1167 #if defined(TARGET_SDL)
1168 return TRUE; /* the only possible message here is SDL_QUIT */
1169 #elif defined(PLATFORM_UNIX)
1170 if ((event->window == window->drawable) &&
1171 (event->data.l[0] == XInternAtom(display, "WM_DELETE_WINDOW", FALSE)))
1179 /* ========================================================================= */
1180 /* joystick functions */
1181 /* ========================================================================= */
1183 inline void InitJoysticks()
1187 #if defined(NO_JOYSTICK)
1188 return; /* joysticks generally deactivated by compile-time directive */
1191 /* always start with reliable default values */
1192 joystick.status = JOYSTICK_NOT_AVAILABLE;
1193 for (i = 0; i < MAX_PLAYERS; i++)
1194 joystick.fd[i] = -1; /* joystick device closed */
1196 #if defined(TARGET_SDL)
1198 #elif defined(PLATFORM_UNIX)
1199 UnixInitJoysticks();
1200 #elif defined(PLATFORM_MSDOS)
1201 MSDOSInitJoysticks();
1205 inline boolean ReadJoystick(int nr, int *x, int *y, boolean *b1, boolean *b2)
1207 #if defined(TARGET_SDL)
1208 return SDLReadJoystick(nr, x, y, b1, b2);
1209 #elif defined(PLATFORM_UNIX)
1210 return UnixReadJoystick(nr, x, y, b1, b2);
1211 #elif defined(PLATFORM_MSDOS)
1212 return MSDOSReadJoystick(nr, x, y, b1, b2);