1 /* Gacela, a GNU Guile extension for fast games development
2 Copyright (C) 2009 by Javier Sancho Fernandez <jsf at jsancho dot org>
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #include <SDL/SDL_events.h>
21 #include <SDL/SDL_image.h>
22 #include <SDL/SDL_mixer.h>
23 #include <SDL/SDL_rotozoom.h>
28 SDL_Surface *surface_address;
31 static scm_t_bits surface_tag;
34 make_surface (SCM file, SDL_Surface *surface_address)
37 struct surface *surface;
39 surface = (struct surface *) scm_gc_malloc (sizeof (struct surface), "surface");
41 surface->filename = SCM_BOOL_F;
42 surface->surface_address = NULL;
44 SCM_NEWSMOB (smob, surface_tag, surface);
46 surface->filename = file;
47 surface->surface_address = surface_address;
53 get_surface_address (SCM surface_smob)
55 struct surface *surface;
57 scm_assert_smob_type (surface_tag, surface_smob);
58 surface = (struct surface *) SCM_SMOB_DATA (surface_smob);
59 return surface->surface_address;
63 get_surface_filename (SCM surface_smob)
65 struct surface *surface;
67 scm_assert_smob_type (surface_tag, surface_smob);
68 surface = (struct surface *) SCM_SMOB_DATA (surface_smob);
69 return surface->filename;
73 get_surface_width (SCM surface_smob)
75 SDL_Surface *surface = get_surface_address (surface_smob);
77 return scm_from_int (surface->w);
81 get_surface_height (SCM surface_smob)
83 SDL_Surface *surface = get_surface_address (surface_smob);
85 return scm_from_int (surface->h);
89 get_surface_pixels (SCM surface_smob)
91 SDL_Surface *surface = get_surface_address (surface_smob);
93 return scm_from_int ((int)surface->pixels);
97 get_surface_format_BytesPerPixel (SCM surface_smob)
99 SDL_Surface *surface = get_surface_address (surface_smob);
101 return scm_from_int (surface->format->BytesPerPixel);
105 mark_surface (SCM surface_smob)
107 struct surface *surface = (struct surface *) SCM_SMOB_DATA (surface_smob);
109 scm_gc_mark (surface->filename);
115 free_surface (SCM surface_smob)
117 struct surface *surface = (struct surface *) SCM_SMOB_DATA (surface_smob);
119 SDL_FreeSurface (surface->surface_address);
120 scm_gc_free (surface, sizeof (struct surface), "surface");
126 print_surface (SCM surface_smob, SCM port, scm_print_state *pstate)
128 struct surface *surface = (struct surface *) SCM_SMOB_DATA (surface_smob);
130 scm_puts ("#<surface \"", port);
131 scm_display (surface->filename, port);
132 scm_puts ("\">", port);
134 /* non-zero means success */
140 gacela_SDL_Init (SCM flags)
142 return scm_from_int (SDL_Init (scm_to_int (flags)));
146 gacela_SDL_Quit (void)
149 return SCM_UNSPECIFIED;
153 gacela_SDL_SetVideoMode (SCM width, SCM height, SCM bpp, SCM flags)
155 SDL_Surface *screen = SDL_SetVideoMode (scm_to_int (width), scm_to_int (height), \
156 scm_to_int (bpp), scm_to_int (flags));
159 return make_surface (scm_from_locale_string ("screen"), screen);
167 gacela_SDL_FreeSurface (SCM surface)
169 return scm_from_int (free_surface (surface));
173 gacela_SDL_WM_SetCaption (SCM title, SCM icon)
175 SDL_WM_SetCaption (scm_to_locale_string(title), scm_to_locale_string(icon));
176 return SCM_UNSPECIFIED;
180 gacela_SDL_Flip (SCM screen)
182 return scm_from_int (SDL_Flip (get_surface_address (screen)));
186 gacela_SDL_Delay (SCM ms)
188 SDL_Delay ((int)scm_to_double (ms));
189 return SCM_UNSPECIFIED;
193 gacela_SDL_GetTicks (void)
195 return scm_from_int (SDL_GetTicks ());
199 gacela_SDL_GetError (void)
201 return scm_from_locale_string (SDL_GetError ());
205 gacela_SDL_DisplayFormat (SCM surface)
207 SDL_Surface *new = SDL_DisplayFormat (get_surface_address (surface));
210 return make_surface (get_surface_filename (surface), new);
218 gacela_SDL_DisplayFormatAlpha (SCM surface)
220 SDL_Surface *new = SDL_DisplayFormatAlpha (get_surface_address (surface));
223 return make_surface (get_surface_filename (surface), new);
231 gacela_SDL_MapRGB (SCM format, SCM r, SCM g, SCM b)
233 return scm_from_int (SDL_MapRGB ((SDL_PixelFormat *)scm_to_int (format), scm_to_int (r), scm_to_int (g), scm_to_int (b)));
237 gacela_SDL_SetColorKey (SCM surface, SCM flag, SCM key)
239 return scm_from_int (SDL_SetColorKey (get_surface_address (surface), scm_to_int (flag), scm_to_int (key)));
243 gacela_SDL_SetAlpha (SCM surface, SCM flag, SCM alpha)
245 return scm_from_int (SDL_SetAlpha (get_surface_address (surface), scm_to_int (flag), scm_to_int (alpha)));
249 gacela_SDL_LoadBMP (SCM file)
251 SDL_Surface *image = SDL_LoadBMP (scm_to_locale_string (file));
254 return make_surface (file, image);
262 gacela_IMG_Load (SCM filename)
264 SDL_Surface *image = IMG_Load (scm_to_locale_string (filename));
267 return make_surface (filename, image);
275 gacela_SDL_GetVideoInfo (void)
277 const SDL_VideoInfo *info;
280 info = SDL_GetVideoInfo ();
281 vi = scm_list_n (SCM_UNDEFINED);
283 vi = scm_cons (scm_cons (scm_from_utf8_symbol ("blit_hw"), scm_from_int (info->blit_hw)), vi);
284 vi = scm_cons (scm_cons (scm_from_utf8_symbol ("hw_available"), scm_from_int (info->hw_available)), vi);
290 gacela_SDL_GL_SetAttribute (SCM attr, SCM value)
292 return scm_from_int (SDL_GL_SetAttribute (scm_to_int (attr), scm_to_int (value)));
296 gacela_SDL_PollEvent (void)
301 event = scm_list_n (SCM_UNDEFINED);
303 if (SDL_PollEvent (&sdl_event)) {
304 switch (sdl_event.type) {
307 event = scm_cons (scm_cons (scm_from_locale_symbol ("key.keysym.sym"), scm_from_int (sdl_event.key.keysym.sym)), event);
310 event = scm_cons (scm_cons (scm_from_locale_symbol ("type"), scm_from_int (sdl_event.type)), event);
317 gacela_SDL_GL_SwapBuffers (void)
319 SDL_GL_SwapBuffers ();
320 return SCM_UNSPECIFIED;
324 gacela_SDL_EnableKeyRepeat (SCM delay, SCM interval)
326 return scm_from_int (SDL_EnableKeyRepeat (scm_to_int (delay), scm_to_int (interval)));
330 gacela_zoomSurface (SCM src, SCM zoomx, SCM zoomy, SCM smooth)
332 SDL_Surface *image = zoomSurface (get_surface_address (src), scm_to_double (zoomx), scm_to_double (zoomy), scm_to_int (smooth));
335 return make_surface (get_surface_filename (src), image);
343 gacela_Mix_OpenAudio (SCM frequency, SCM format, SCM channels, SCM chunksize)
345 return scm_from_int (Mix_OpenAudio (scm_to_int (frequency), scm_to_int (format), scm_to_int (channels), scm_to_int (chunksize)));
349 gacela_Mix_LoadMUS (SCM file)
351 return scm_from_int ((int)Mix_LoadMUS (scm_to_locale_string (file)));
355 gacela_Mix_LoadWAV (SCM file)
357 return scm_from_int ((int)Mix_LoadWAV (scm_to_locale_string (file)));
361 gacela_Mix_PlayChannel (SCM channel, SCM chunk, SCM loops)
363 return scm_from_int (Mix_PlayChannel (scm_to_int (channel), (Mix_Chunk *)scm_to_int (chunk), scm_to_int (loops)));
367 gacela_Mix_PlayMusic (SCM music, SCM loops)
369 return scm_from_int (Mix_PlayMusic ((Mix_Music *)scm_to_int (music), scm_to_int (loops)));
373 gacela_Mix_PlayingMusic (void)
375 return scm_from_int (Mix_PlayingMusic ());
379 gacela_Mix_PausedMusic (void)
381 return scm_from_int (Mix_PausedMusic ());
385 gacela_Mix_PauseMusic (void)
388 return SCM_UNSPECIFIED;
392 gacela_Mix_ResumeMusic (void)
395 return SCM_UNSPECIFIED;
399 gacela_Mix_HaltMusic (void)
401 return scm_from_int (Mix_HaltMusic ());
405 gacela_Mix_FreeMusic (SCM music)
407 Mix_FreeMusic ((Mix_Music *)scm_to_int (music));
408 return SCM_UNSPECIFIED;
412 gacela_Mix_FreeChunk (SCM chunk)
414 Mix_FreeChunk ((Mix_Chunk *)scm_to_int (chunk));
415 return SCM_UNSPECIFIED;
419 gacela_Mix_CloseAudio (void)
422 return SCM_UNSPECIFIED;
427 init_gacela_sdl (void *data)
429 surface_tag = scm_make_smob_type ("surface", sizeof (struct surface));
430 scm_set_smob_mark (surface_tag, mark_surface);
431 scm_set_smob_free (surface_tag, free_surface);
432 scm_set_smob_print (surface_tag, print_surface);
433 scm_c_define_gsubr ("surface-file", 1, 0, 0, get_surface_filename);
434 scm_c_define_gsubr ("surface-w", 1, 0, 0, get_surface_width);
435 scm_c_define_gsubr ("surface-h", 1, 0, 0, get_surface_height);
436 scm_c_define_gsubr ("surface-pixels", 1, 0, 0, get_surface_pixels);
437 scm_c_define_gsubr ("surface-format-BytesPerPixel", 1, 0, 0, get_surface_format_BytesPerPixel);
439 scm_c_define ("SDL_INIT_TIMER", scm_from_int (SDL_INIT_TIMER));
440 scm_c_define ("SDL_INIT_AUDIO", scm_from_int (SDL_INIT_AUDIO));
441 scm_c_define ("SDL_INIT_VIDEO", scm_from_int (SDL_INIT_VIDEO));
442 scm_c_define ("SDL_INIT_CDROM", scm_from_int (SDL_INIT_CDROM));
443 scm_c_define ("SDL_INIT_JOYSTICK", scm_from_int (SDL_INIT_JOYSTICK));
444 scm_c_define ("SDL_INIT_NOPARACHUTE", scm_from_int (SDL_INIT_NOPARACHUTE));
445 scm_c_define ("SDL_INIT_EVENTTHREAD", scm_from_int (SDL_INIT_EVENTTHREAD));
446 scm_c_define ("SDL_INIT_EVERYTHING", scm_from_int (SDL_INIT_EVERYTHING));
448 scm_c_define ("SDL_SWSURFACE", scm_from_int (SDL_SWSURFACE));
449 scm_c_define ("SDL_HWSURFACE", scm_from_int (SDL_HWSURFACE));
450 scm_c_define ("SDL_ASYNCBLIT", scm_from_int (SDL_ASYNCBLIT));
452 scm_c_define ("SDL_ANYFORMAT", scm_from_int (SDL_ANYFORMAT));
453 scm_c_define ("SDL_HWPALETTE", scm_from_int (SDL_HWPALETTE));
454 scm_c_define ("SDL_DOUBLEBUF", scm_from_int (SDL_DOUBLEBUF));
455 scm_c_define ("SDL_FULLSCREEN", scm_from_int (SDL_FULLSCREEN));
456 scm_c_define ("SDL_OPENGL", scm_from_int (SDL_OPENGL));
457 scm_c_define ("SDL_OPENGLBLIT", scm_from_int (SDL_OPENGLBLIT));
458 scm_c_define ("SDL_RESIZABLE", scm_from_int (SDL_RESIZABLE));
459 scm_c_define ("SDL_NOFRAME", scm_from_int (SDL_NOFRAME));
461 scm_c_define ("SDL_HWACCEL", scm_from_int (SDL_HWACCEL));
462 scm_c_define ("SDL_SRCCOLORKEY", scm_from_int (SDL_SRCCOLORKEY));
464 scm_c_define ("SDL_GL_DOUBLEBUFFER", scm_from_int (SDL_GL_DOUBLEBUFFER));
466 scm_c_define ("SDL_DEFAULT_REPEAT_DELAY", scm_from_int (SDL_DEFAULT_REPEAT_DELAY));
467 scm_c_define ("SDL_DEFAULT_REPEAT_INTERVAL", scm_from_int (SDL_DEFAULT_REPEAT_INTERVAL));
469 scm_c_define ("SDL_LIL_ENDIAN", scm_from_int (SDL_LIL_ENDIAN));
470 scm_c_define ("SDL_BIG_ENDIAN", scm_from_int (SDL_BIG_ENDIAN));
471 scm_c_define ("SDL_BYTEORDER", scm_from_int (SDL_BYTEORDER));
473 scm_c_define ("MIX_DEFAULT_FORMAT", scm_from_int (MIX_DEFAULT_FORMAT));
475 scm_c_define ("SDL_NOEVENT", scm_from_int (SDL_NOEVENT));
476 scm_c_define ("SDL_ACTIVEEVENT", scm_from_int (SDL_ACTIVEEVENT));
477 scm_c_define ("SDL_KEYDOWN", scm_from_int (SDL_KEYDOWN));
478 scm_c_define ("SDL_KEYUP", scm_from_int (SDL_KEYUP));
479 scm_c_define ("SDL_MOUSEMOTION", scm_from_int (SDL_MOUSEMOTION));
480 scm_c_define ("SDL_MOUSEBUTTONDOWN", scm_from_int (SDL_MOUSEBUTTONDOWN));
481 scm_c_define ("SDL_MOUSEBUTTONUP", scm_from_int (SDL_MOUSEBUTTONUP));
482 scm_c_define ("SDL_JOYAXISMOTION", scm_from_int (SDL_JOYAXISMOTION));
483 scm_c_define ("SDL_JOYBALLMOTION", scm_from_int (SDL_JOYBALLMOTION));
484 scm_c_define ("SDL_JOYHATMOTION", scm_from_int (SDL_JOYHATMOTION));
485 scm_c_define ("SDL_JOYBUTTONDOWN", scm_from_int (SDL_JOYBUTTONDOWN));
486 scm_c_define ("SDL_JOYBUTTONUP", scm_from_int (SDL_JOYBUTTONUP));
487 scm_c_define ("SDL_QUIT", scm_from_int (SDL_QUIT));
488 scm_c_define ("SDL_SYSWMEVENT", scm_from_int (SDL_SYSWMEVENT));
489 scm_c_define ("SDL_EVENT_RESERVEDA", scm_from_int (SDL_EVENT_RESERVEDA));
490 scm_c_define ("SDL_EVENT_RESERVEDB", scm_from_int (SDL_EVENT_RESERVEDB));
491 scm_c_define ("SDL_VIDEORESIZE", scm_from_int (SDL_VIDEORESIZE));
492 scm_c_define ("SDL_VIDEOEXPOSE", scm_from_int (SDL_VIDEOEXPOSE));
493 scm_c_define ("SDL_EVENT_RESERVED2", scm_from_int (SDL_EVENT_RESERVED2));
494 scm_c_define ("SDL_EVENT_RESERVED3", scm_from_int (SDL_EVENT_RESERVED3));
495 scm_c_define ("SDL_EVENT_RESERVED4", scm_from_int (SDL_EVENT_RESERVED4));
496 scm_c_define ("SDL_EVENT_RESERVED5", scm_from_int (SDL_EVENT_RESERVED5));
497 scm_c_define ("SDL_EVENT_RESERVED6", scm_from_int (SDL_EVENT_RESERVED6));
498 scm_c_define ("SDL_EVENT_RESERVED7", scm_from_int (SDL_EVENT_RESERVED7));
499 scm_c_define ("SDL_USEREVENT", scm_from_int (SDL_USEREVENT));
500 scm_c_define ("SDL_NUMEVENTS", scm_from_int (SDL_NUMEVENTS));
502 scm_c_define_gsubr ("SDL_Init", 1, 0, 0, gacela_SDL_Init);
503 scm_c_define_gsubr ("SDL_Quit", 0, 0, 0, gacela_SDL_Quit);
504 scm_c_define_gsubr ("SDL_SetVideoMode", 4, 0, 0, gacela_SDL_SetVideoMode);
505 scm_c_define_gsubr ("SDL_FreeSurface", 1, 0, 0, gacela_SDL_FreeSurface);
506 scm_c_define_gsubr ("SDL_WM_SetCaption", 2, 0, 0, gacela_SDL_WM_SetCaption);
507 scm_c_define_gsubr ("SDL_Flip", 1, 0, 0, gacela_SDL_Flip);
508 scm_c_define_gsubr ("SDL_Delay", 1, 0, 0, gacela_SDL_Delay);
509 scm_c_define_gsubr ("SDL_GetTicks", 0, 0, 0, gacela_SDL_GetTicks);
510 scm_c_define_gsubr ("SDL_GetError", 0, 0, 0, gacela_SDL_GetError);
511 scm_c_define_gsubr ("SDL_DisplayFormat", 1, 0, 0, gacela_SDL_DisplayFormat);
512 scm_c_define_gsubr ("SDL_DisplayFormatAlpha", 1, 0, 0, gacela_SDL_DisplayFormatAlpha);
513 scm_c_define_gsubr ("SDL_MapRGB", 4, 0, 0, gacela_SDL_MapRGB);
514 scm_c_define_gsubr ("SDL_SetColorKey", 3, 0, 0, gacela_SDL_SetColorKey);
515 scm_c_define_gsubr ("SDL_SetAlpha", 3, 0, 0, gacela_SDL_SetAlpha);
516 scm_c_define_gsubr ("SDL_LoadBMP", 1, 0, 0, gacela_SDL_LoadBMP);
517 scm_c_define_gsubr ("IMG_Load", 1, 0, 0, gacela_IMG_Load);
518 scm_c_define_gsubr ("SDL_GetVideoInfo", 0, 0, 0, gacela_SDL_GetVideoInfo);
519 scm_c_define_gsubr ("SDL_GL_SetAttribute", 2, 0, 0, gacela_SDL_GL_SetAttribute);
520 scm_c_define_gsubr ("SDL_PollEvent", 0, 0, 0, gacela_SDL_PollEvent);
521 scm_c_define_gsubr ("SDL_GL_SwapBuffers", 0, 0, 0, gacela_SDL_GL_SwapBuffers);
522 scm_c_define_gsubr ("SDL_EnableKeyRepeat", 2, 0, 0, gacela_SDL_EnableKeyRepeat);
523 scm_c_define_gsubr ("zoomSurface", 4, 0, 0, gacela_zoomSurface);
524 scm_c_define_gsubr ("Mix_OpenAudio", 4, 0, 0, gacela_Mix_OpenAudio);
525 scm_c_define_gsubr ("Mix_LoadMUS", 1, 0, 0, gacela_Mix_LoadMUS);
526 scm_c_define_gsubr ("Mix_LoadWAV", 1, 0, 0, gacela_Mix_LoadWAV);
527 scm_c_define_gsubr ("Mix_PlayChannel", 3, 0, 0, gacela_Mix_PlayChannel);
528 scm_c_define_gsubr ("Mix_PlayMusic", 2, 0, 0, gacela_Mix_PlayMusic);
529 scm_c_define_gsubr ("Mix_PlayingMusic", 0, 0, 0, gacela_Mix_PlayingMusic);
530 scm_c_define_gsubr ("Mix_PausedMusic", 0, 0, 0, gacela_Mix_PausedMusic);
531 scm_c_define_gsubr ("Mix_PauseMusic", 0, 0, 0, gacela_Mix_PauseMusic);
532 scm_c_define_gsubr ("Mix_ResumeMusic", 0, 0, 0, gacela_Mix_ResumeMusic);
533 scm_c_define_gsubr ("Mix_HaltMusic", 0, 0, 0, gacela_Mix_HaltMusic);
534 scm_c_define_gsubr ("Mix_FreeMusic", 1, 0, 0, gacela_Mix_FreeMusic);
535 scm_c_define_gsubr ("Mix_FreeChunk", 1, 0, 0, gacela_Mix_FreeChunk);
536 scm_c_define_gsubr ("Mix_CloseAudio", 0, 0, 0, gacela_Mix_CloseAudio);
540 scm_init_gacela_sdl ()
542 init_gacela_sdl (NULL);