2 * Copyright (C) 2003 Robert Kooima
4 * NEVERBALL is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published
6 * by the Free Software Foundation; either version 2 of the License,
7 * or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
26 /*---------------------------------------------------------------------------*/
28 /* Define the mkdir symbol. */
36 /*---------------------------------------------------------------------------*/
38 static int option_d[CONFIG_OPTION_D_COUNT];
39 static char *option_s[CONFIG_OPTION_S_COUNT];
43 /*---------------------------------------------------------------------------*/
45 static void config_key(const char *s, int i, int d)
51 for (c = 0; c < SDLK_LAST; c++)
52 if (strcmp(s, SDL_GetKeyName(c)) == 0)
59 /*---------------------------------------------------------------------------*/
61 void config_init(void)
63 memset(option_d, 0, sizeof (option_d));
64 memset(option_s, 0, sizeof (option_s));
66 config_set_d(CONFIG_FULLSCREEN, DEFAULT_FULLSCREEN);
67 config_set_d(CONFIG_WIDTH, DEFAULT_WIDTH);
68 config_set_d(CONFIG_HEIGHT, DEFAULT_HEIGHT);
69 config_set_d(CONFIG_STEREO, DEFAULT_STEREO);
70 config_set_d(CONFIG_CAMERA, DEFAULT_CAMERA);
71 config_set_d(CONFIG_TEXTURES, DEFAULT_TEXTURES);
72 config_set_d(CONFIG_GEOMETRY, DEFAULT_GEOMETRY);
73 config_set_d(CONFIG_REFLECTION, DEFAULT_REFLECTION);
74 config_set_d(CONFIG_MULTISAMPLE, DEFAULT_MULTISAMPLE);
75 config_set_d(CONFIG_MIPMAP, DEFAULT_MIPMAP);
76 config_set_d(CONFIG_ANISO, DEFAULT_ANISO);
77 config_set_d(CONFIG_BACKGROUND, DEFAULT_BACKGROUND);
78 config_set_d(CONFIG_SHADOW, DEFAULT_SHADOW);
79 config_set_d(CONFIG_AUDIO_BUFF, DEFAULT_AUDIO_BUFF);
80 config_set_d(CONFIG_MOUSE_SENSE, DEFAULT_MOUSE_SENSE);
81 config_set_d(CONFIG_MOUSE_INVERT, DEFAULT_MOUSE_INVERT);
82 config_set_d(CONFIG_NICE, DEFAULT_NICE);
83 config_set_d(CONFIG_FPS, DEFAULT_FPS);
84 config_set_d(CONFIG_SOUND_VOLUME, DEFAULT_SOUND_VOLUME);
85 config_set_d(CONFIG_MUSIC_VOLUME, DEFAULT_MUSIC_VOLUME);
86 config_set_d(CONFIG_JOYSTICK, DEFAULT_JOYSTICK);
87 config_set_d(CONFIG_JOYSTICK_DEVICE, DEFAULT_JOYSTICK_DEVICE);
88 config_set_d(CONFIG_JOYSTICK_AXIS_X, DEFAULT_JOYSTICK_AXIS_X);
89 config_set_d(CONFIG_JOYSTICK_AXIS_Y, DEFAULT_JOYSTICK_AXIS_Y);
90 config_set_d(CONFIG_JOYSTICK_BUTTON_A, DEFAULT_JOYSTICK_BUTTON_A);
91 config_set_d(CONFIG_JOYSTICK_BUTTON_B, DEFAULT_JOYSTICK_BUTTON_B);
92 config_set_d(CONFIG_JOYSTICK_BUTTON_L, DEFAULT_JOYSTICK_BUTTON_L);
93 config_set_d(CONFIG_JOYSTICK_BUTTON_R, DEFAULT_JOYSTICK_BUTTON_R);
94 config_set_d(CONFIG_JOYSTICK_BUTTON_EXIT, DEFAULT_JOYSTICK_BUTTON_EXIT);
95 config_set_d(CONFIG_JOYSTICK_CAMERA_1, DEFAULT_JOYSTICK_CAMERA_1);
96 config_set_d(CONFIG_JOYSTICK_CAMERA_2, DEFAULT_JOYSTICK_CAMERA_2);
97 config_set_d(CONFIG_JOYSTICK_CAMERA_3, DEFAULT_JOYSTICK_CAMERA_3);
98 config_set_d(CONFIG_KEY_CAMERA_1, DEFAULT_KEY_CAMERA_1);
99 config_set_d(CONFIG_KEY_CAMERA_2, DEFAULT_KEY_CAMERA_2);
100 config_set_d(CONFIG_KEY_CAMERA_3, DEFAULT_KEY_CAMERA_3);
101 config_set_d(CONFIG_KEY_CAMERA_R, DEFAULT_KEY_CAMERA_R);
102 config_set_d(CONFIG_KEY_CAMERA_L, DEFAULT_KEY_CAMERA_L);
103 config_set_d(CONFIG_VIEW_FOV, DEFAULT_VIEW_FOV);
104 config_set_d(CONFIG_VIEW_DP, DEFAULT_VIEW_DP);
105 config_set_d(CONFIG_VIEW_DC, DEFAULT_VIEW_DC);
106 config_set_d(CONFIG_VIEW_DZ, DEFAULT_VIEW_DZ);
107 config_set_d(CONFIG_ROTATE_FAST, DEFAULT_ROTATE_FAST);
108 config_set_d(CONFIG_ROTATE_SLOW, DEFAULT_ROTATE_SLOW);
109 config_set_s(CONFIG_PLAYER, DEFAULT_PLAYER);
110 config_set_s(CONFIG_BALL, DEFAULT_BALL);
111 config_set_d(CONFIG_CHEAT, DEFAULT_CHEAT);
112 config_set_d(CONFIG_KEY_FORWARD, DEFAULT_KEY_FORWARD);
113 config_set_d(CONFIG_KEY_BACKWARD, DEFAULT_KEY_BACKWARD);
114 config_set_d(CONFIG_KEY_LEFT, DEFAULT_KEY_LEFT);
115 config_set_d(CONFIG_KEY_RIGHT, DEFAULT_KEY_RIGHT);
116 config_set_d(CONFIG_KEY_PAUSE, DEFAULT_KEY_PAUSE);
117 config_set_d(CONFIG_KEY_RESTART, DEFAULT_KEY_RESTART);
120 void config_load(void)
124 if ((fp = fopen(config_user(USER_CONFIG_FILE), "r")))
130 while (fgets(buf, MAXSTR, fp))
131 if (sscanf(buf, "%s %s", key, val) == 2)
133 if (strcmp(key, "fullscreen") == 0)
134 config_set_d(CONFIG_FULLSCREEN, atoi(val));
135 else if (strcmp(key, "width") == 0)
136 config_set_d(CONFIG_WIDTH, atoi(val));
137 else if (strcmp(key, "height") == 0)
138 config_set_d(CONFIG_HEIGHT, atoi(val));
139 else if (strcmp(key, "stereo") == 0)
140 config_set_d(CONFIG_STEREO, atoi(val));
141 else if (strcmp(key, "camera") == 0)
142 config_set_d(CONFIG_CAMERA, atoi(val));
143 else if (strcmp(key, "textures") == 0)
144 config_set_d(CONFIG_TEXTURES, atoi(val));
145 else if (strcmp(key, "geometry") == 0)
146 config_set_d(CONFIG_GEOMETRY, atoi(val));
147 else if (strcmp(key, "reflection") == 0)
148 config_set_d(CONFIG_REFLECTION, atoi(val));
149 else if (strcmp(key, "multisample") == 0)
150 config_set_d(CONFIG_MULTISAMPLE, atoi(val));
151 else if (strcmp(key, "mipmap") == 0)
152 config_set_d(CONFIG_MIPMAP, atoi(val));
153 else if (strcmp(key, "aniso") == 0)
154 config_set_d(CONFIG_ANISO, atoi(val));
155 else if (strcmp(key, "background") == 0)
156 config_set_d(CONFIG_BACKGROUND, atoi(val));
157 else if (strcmp(key, "shadow") == 0)
158 config_set_d(CONFIG_SHADOW, atoi(val));
159 else if (strcmp(key, "audio_buff") == 0)
160 config_set_d(CONFIG_AUDIO_BUFF, atoi(val));
161 else if (strcmp(key, "mouse_sense") == 0)
162 config_set_d(CONFIG_MOUSE_SENSE, atoi(val));
163 else if (strcmp(key, "mouse_invert") == 0)
164 config_set_d(CONFIG_MOUSE_INVERT, atoi(val));
165 else if (strcmp(key, "nice") == 0)
166 config_set_d(CONFIG_NICE, atoi(val));
167 else if (strcmp(key, "fps") == 0)
168 config_set_d(CONFIG_FPS, atoi(val));
169 else if (strcmp(key, "sound_volume") == 0)
170 config_set_d(CONFIG_SOUND_VOLUME, atoi(val));
171 else if (strcmp(key, "music_volume") == 0)
172 config_set_d(CONFIG_MUSIC_VOLUME, atoi(val));
173 else if (strcmp(key, "joystick") == 0)
174 config_set_d(CONFIG_JOYSTICK, atoi(val));
175 else if (strcmp(key, "joystick_device") == 0)
176 config_set_d(CONFIG_JOYSTICK_DEVICE, atoi(val));
177 else if (strcmp(key, "joystick_axis_x") == 0)
178 config_set_d(CONFIG_JOYSTICK_AXIS_X, atoi(val));
179 else if (strcmp(key, "joystick_axis_y") == 0)
180 config_set_d(CONFIG_JOYSTICK_AXIS_Y, atoi(val));
181 else if (strcmp(key, "joystick_button_a") == 0)
182 config_set_d(CONFIG_JOYSTICK_BUTTON_A, atoi(val));
183 else if (strcmp(key, "joystick_button_b") == 0)
184 config_set_d(CONFIG_JOYSTICK_BUTTON_B, atoi(val));
185 else if (strcmp(key, "joystick_button_r") == 0)
186 config_set_d(CONFIG_JOYSTICK_BUTTON_R, atoi(val));
187 else if (strcmp(key, "joystick_button_l") == 0)
188 config_set_d(CONFIG_JOYSTICK_BUTTON_L, atoi(val));
189 else if (strcmp(key, "joystick_button_exit") == 0)
190 config_set_d(CONFIG_JOYSTICK_BUTTON_EXIT, atoi(val));
191 else if (strcmp(key, "joystick_camera_1") == 0)
192 config_set_d(CONFIG_JOYSTICK_CAMERA_1, atoi(val));
193 else if (strcmp(key, "joystick_camera_2") == 0)
194 config_set_d(CONFIG_JOYSTICK_CAMERA_2, atoi(val));
195 else if (strcmp(key, "joystick_camera_3") == 0)
196 config_set_d(CONFIG_JOYSTICK_CAMERA_3, atoi(val));
197 else if (strcmp(key, "view_fov") == 0)
198 config_set_d(CONFIG_VIEW_FOV, atoi(val));
199 else if (strcmp(key, "view_dp") == 0)
200 config_set_d(CONFIG_VIEW_DP, atoi(val));
201 else if (strcmp(key, "view_dc") == 0)
202 config_set_d(CONFIG_VIEW_DC, atoi(val));
203 else if (strcmp(key, "view_dz") == 0)
204 config_set_d(CONFIG_VIEW_DZ, atoi(val));
205 else if (strcmp(key, "rotate_fast") == 0)
206 config_set_d(CONFIG_ROTATE_FAST, atoi(val));
207 else if (strcmp(key, "rotate_slow") == 0)
208 config_set_d(CONFIG_ROTATE_SLOW, atoi(val));
210 else if (strcmp(key, "key_forward") == 0)
211 config_key(val, CONFIG_KEY_FORWARD, DEFAULT_KEY_FORWARD);
212 else if (strcmp(key, "key_backward") == 0)
213 config_key(val, CONFIG_KEY_BACKWARD, DEFAULT_KEY_BACKWARD);
214 else if (strcmp(key, "key_left") == 0)
215 config_key(val, CONFIG_KEY_LEFT, DEFAULT_KEY_LEFT);
216 else if (strcmp(key, "key_right") == 0)
217 config_key(val, CONFIG_KEY_RIGHT, DEFAULT_KEY_RIGHT);
219 else if (strcmp(key, "key_camera_1") == 0)
220 config_key(val, CONFIG_KEY_CAMERA_1, DEFAULT_KEY_CAMERA_1);
221 else if (strcmp(key, "key_camera_2") == 0)
222 config_key(val, CONFIG_KEY_CAMERA_2, DEFAULT_KEY_CAMERA_2);
223 else if (strcmp(key, "key_camera_3") == 0)
224 config_key(val, CONFIG_KEY_CAMERA_3, DEFAULT_KEY_CAMERA_3);
225 else if (strcmp(key, "key_camera_r") == 0)
226 config_key(val, CONFIG_KEY_CAMERA_R, DEFAULT_KEY_CAMERA_R);
227 else if (strcmp(key, "key_camera_l") == 0)
228 config_key(val, CONFIG_KEY_CAMERA_L, DEFAULT_KEY_CAMERA_L);
230 else if (strcmp(key, "key_pause") == 0)
231 config_key(val, CONFIG_KEY_PAUSE, DEFAULT_KEY_PAUSE);
232 else if (strcmp(key, "key_restart") == 0)
233 config_key(val, CONFIG_KEY_RESTART, DEFAULT_KEY_RESTART);
235 else if (strcmp(key, "player") == 0)
236 config_set_s(CONFIG_PLAYER, val);
237 else if (strcmp(key, "ball") == 0)
238 config_set_s(CONFIG_BALL, val);
240 else if (strcmp(key, "cheat") == 0)
241 config_set_d(CONFIG_CHEAT, atoi(val));
250 void config_save(void)
254 if (dirty && (fp = fopen(config_user(USER_CONFIG_FILE), "w")))
256 fprintf(fp, "fullscreen %d\n",
257 option_d[CONFIG_FULLSCREEN]);
258 fprintf(fp, "width %d\n",
259 option_d[CONFIG_WIDTH]);
260 fprintf(fp, "height %d\n",
261 option_d[CONFIG_HEIGHT]);
262 fprintf(fp, "stereo %d\n",
263 option_d[CONFIG_STEREO]);
264 fprintf(fp, "camera %d\n",
265 option_d[CONFIG_CAMERA]);
266 fprintf(fp, "textures %d\n",
267 option_d[CONFIG_TEXTURES]);
268 fprintf(fp, "geometry %d\n",
269 option_d[CONFIG_GEOMETRY]);
270 fprintf(fp, "reflection %d\n",
271 option_d[CONFIG_REFLECTION]);
272 fprintf(fp, "multisample %d\n",
273 option_d[CONFIG_MULTISAMPLE]);
274 fprintf(fp, "mipmap %d\n",
275 option_d[CONFIG_MIPMAP]);
276 fprintf(fp, "aniso %d\n",
277 option_d[CONFIG_ANISO]);
278 fprintf(fp, "background %d\n",
279 option_d[CONFIG_BACKGROUND]);
280 fprintf(fp, "shadow %d\n",
281 option_d[CONFIG_SHADOW]);
282 fprintf(fp, "audio_buff %d\n",
283 option_d[CONFIG_AUDIO_BUFF]);
284 fprintf(fp, "mouse_sense %d\n",
285 option_d[CONFIG_MOUSE_SENSE]);
286 fprintf(fp, "mouse_invert %d\n",
287 option_d[CONFIG_MOUSE_INVERT]);
288 fprintf(fp, "nice %d\n",
289 option_d[CONFIG_NICE]);
290 fprintf(fp, "fps %d\n",
291 option_d[CONFIG_FPS]);
292 fprintf(fp, "sound_volume %d\n",
293 option_d[CONFIG_SOUND_VOLUME]);
294 fprintf(fp, "music_volume %d\n",
295 option_d[CONFIG_MUSIC_VOLUME]);
296 fprintf(fp, "joystick %d\n",
297 option_d[CONFIG_JOYSTICK]);
298 fprintf(fp, "joystick_device %d\n",
299 option_d[CONFIG_JOYSTICK_DEVICE]);
300 fprintf(fp, "joystick_axis_x %d\n",
301 option_d[CONFIG_JOYSTICK_AXIS_X]);
302 fprintf(fp, "joystick_axis_y %d\n",
303 option_d[CONFIG_JOYSTICK_AXIS_Y]);
304 fprintf(fp, "joystick_button_a %d\n",
305 option_d[CONFIG_JOYSTICK_BUTTON_A]);
306 fprintf(fp, "joystick_button_b %d\n",
307 option_d[CONFIG_JOYSTICK_BUTTON_B]);
308 fprintf(fp, "joystick_button_r %d\n",
309 option_d[CONFIG_JOYSTICK_BUTTON_R]);
310 fprintf(fp, "joystick_button_l %d\n",
311 option_d[CONFIG_JOYSTICK_BUTTON_L]);
312 fprintf(fp, "joystick_button_exit %d\n",
313 option_d[CONFIG_JOYSTICK_BUTTON_EXIT]);
314 fprintf(fp, "joystick_camera_1 %d\n",
315 option_d[CONFIG_JOYSTICK_CAMERA_1]);
316 fprintf(fp, "joystick_camera_2 %d\n",
317 option_d[CONFIG_JOYSTICK_CAMERA_2]);
318 fprintf(fp, "joystick_camera_3 %d\n",
319 option_d[CONFIG_JOYSTICK_CAMERA_3]);
320 fprintf(fp, "view_fov %d\n",
321 option_d[CONFIG_VIEW_FOV]);
322 fprintf(fp, "view_dp %d\n",
323 option_d[CONFIG_VIEW_DP]);
324 fprintf(fp, "view_dc %d\n",
325 option_d[CONFIG_VIEW_DC]);
326 fprintf(fp, "view_dz %d\n",
327 option_d[CONFIG_VIEW_DZ]);
328 fprintf(fp, "rotate_fast %d\n",
329 option_d[CONFIG_ROTATE_FAST]);
330 fprintf(fp, "rotate_slow %d\n",
331 option_d[CONFIG_ROTATE_SLOW]);
333 fprintf(fp, "key_forward %s\n",
334 SDL_GetKeyName(option_d[CONFIG_KEY_FORWARD]));
335 fprintf(fp, "key_backward %s\n",
336 SDL_GetKeyName(option_d[CONFIG_KEY_BACKWARD]));
337 fprintf(fp, "key_left %s\n",
338 SDL_GetKeyName(option_d[CONFIG_KEY_LEFT]));
339 fprintf(fp, "key_right %s\n",
340 SDL_GetKeyName(option_d[CONFIG_KEY_RIGHT]));
342 fprintf(fp, "key_camera_1 %s\n",
343 SDL_GetKeyName(option_d[CONFIG_KEY_CAMERA_1]));
344 fprintf(fp, "key_camera_2 %s\n",
345 SDL_GetKeyName(option_d[CONFIG_KEY_CAMERA_2]));
346 fprintf(fp, "key_camera_3 %s\n",
347 SDL_GetKeyName(option_d[CONFIG_KEY_CAMERA_3]));
348 fprintf(fp, "key_camera_r %s\n",
349 SDL_GetKeyName(option_d[CONFIG_KEY_CAMERA_R]));
350 fprintf(fp, "key_camera_l %s\n",
351 SDL_GetKeyName(option_d[CONFIG_KEY_CAMERA_L]));
353 fprintf(fp, "key_pause %s\n",
354 SDL_GetKeyName(option_d[CONFIG_KEY_PAUSE]));
355 fprintf(fp, "key_restart %s\n",
356 SDL_GetKeyName(option_d[CONFIG_KEY_RESTART]));
358 fprintf(fp, "player %s\n", option_s[CONFIG_PLAYER]);
359 fprintf(fp, "ball %s\n", option_s[CONFIG_BALL]);
362 fprintf(fp, "cheat %d\n", option_d[CONFIG_CHEAT]);
370 /*---------------------------------------------------------------------------*/
372 int check_extension(const char *needle)
374 const GLubyte *haystack, *c;
376 /* Search for the given string in the OpenGL extension strings. */
378 for (haystack = glGetString(GL_EXTENSIONS); *haystack; haystack++)
380 for (c = (const GLubyte *) needle; *c && *haystack; c++, haystack++)
384 if ((*c == 0) && (*haystack == ' ' || *haystack == '\0'))
391 int config_mode(int f, int w, int h)
393 int stereo = config_get_d(CONFIG_STEREO) ? 1 : 0;
394 int stencil = config_get_d(CONFIG_REFLECTION) ? 1 : 0;
395 int buffers = config_get_d(CONFIG_MULTISAMPLE) ? 1 : 0;
396 int samples = config_get_d(CONFIG_MULTISAMPLE);
398 SDL_GL_SetAttribute(SDL_GL_STEREO, stereo);
399 SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, stencil);
400 SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, buffers);
401 SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, samples);
403 /* Try to set the currently specified mode. */
405 if (SDL_SetVideoMode(w, h, 0, SDL_OPENGL | (f ? SDL_FULLSCREEN : 0)))
407 config_set_d(CONFIG_FULLSCREEN, f);
408 config_set_d(CONFIG_WIDTH, w);
409 config_set_d(CONFIG_HEIGHT, h);
411 glViewport(0, 0, w, h);
412 glClearColor(0.0f, 0.0f, 0.1f, 0.0f);
414 glEnable(GL_NORMALIZE);
415 glEnable(GL_CULL_FACE);
416 glEnable(GL_DEPTH_TEST);
417 glEnable(GL_TEXTURE_2D);
418 glEnable(GL_LIGHTING);
420 /* If GL supports multisample, and SDL got a multisample buffer... */
422 #ifdef GL_ARB_multisample
423 if (check_extension("ARB_multisample"))
425 SDL_GL_GetAttribute(SDL_GL_MULTISAMPLEBUFFERS, &buffers);
427 glEnable(GL_MULTISAMPLE_ARB);
434 /* If the mode failed, try it without stereo. */
438 config_set_d(CONFIG_STEREO, 0);
439 return config_mode(f, w, h);
442 /* If the mode failed, try decreasing the level of multisampling. */
446 config_set_d(CONFIG_MULTISAMPLE, samples / 2);
447 return config_mode(f, w, h);
450 /* If that mode failed, try it without reflections. */
454 config_set_d(CONFIG_REFLECTION, 0);
455 return config_mode(f, w, h);
458 /* If THAT mode failed, punt. */
463 /*---------------------------------------------------------------------------*/
465 void config_set_d(int i, int d)
471 void config_tgl_d(int i)
473 option_d[i] = (option_d[i] ? 0 : 1);
477 int config_tst_d(int i, int d)
479 return (option_d[i] == d) ? 1 : 0;
482 int config_get_d(int i)
487 /*---------------------------------------------------------------------------*/
489 void config_set_s(int i, const char *src)
491 int len = (int) strlen(src);
496 if ((option_s[i] = (char *) malloc(len + 1)))
497 strncpy(option_s[i], src, len + 1);
502 void config_get_s(int i, char *dst, int len)
504 strncpy(dst, option_s[i], len);
507 /*---------------------------------------------------------------------------*/
509 static int grabbed = 0;
511 void config_set_grab(int w)
514 SDL_WarpMouse(config_get_d(CONFIG_WIDTH) / 2,
515 config_get_d(CONFIG_HEIGHT) / 2);
516 SDL_WM_GrabInput(SDL_GRAB_ON);
517 SDL_ShowCursor(SDL_DISABLE);
521 void config_clr_grab(void)
523 SDL_WM_GrabInput(SDL_GRAB_OFF);
524 SDL_ShowCursor(SDL_ENABLE);
528 int config_get_grab(void)
533 /*---------------------------------------------------------------------------*/
535 int config_cheat(void)
537 return config_get_d(CONFIG_CHEAT);
540 void config_set_cheat(void)
542 config_set_d(CONFIG_CHEAT, 1);
545 void config_clr_cheat(void)
547 config_set_d(CONFIG_CHEAT, 0);
550 /*---------------------------------------------------------------------------*/
552 void config_push_persp(float fov, float n, float f)
556 GLdouble r = fov / 2 * V_PI / 180;
558 GLdouble c = cos(r) / s;
560 GLdouble a = ((GLdouble) option_d[CONFIG_WIDTH] /
561 (GLdouble) option_d[CONFIG_HEIGHT]);
563 glMatrixMode(GL_PROJECTION);
578 m[2][2] = -(f + n) / (f - n);
582 m[3][2] = -2.0 * n * f / (f - n);
585 glMultMatrixd(&m[0][0]);
587 glMatrixMode(GL_MODELVIEW);
590 void config_push_ortho(void)
592 GLdouble w = (GLdouble) option_d[CONFIG_WIDTH];
593 GLdouble h = (GLdouble) option_d[CONFIG_HEIGHT];
595 glMatrixMode(GL_PROJECTION);
599 glOrtho(0.0, w, 0.0, h, -1.0, +1.0);
601 glMatrixMode(GL_MODELVIEW);
604 void config_pop_matrix(void)
606 glMatrixMode(GL_PROJECTION);
610 glMatrixMode(GL_MODELVIEW);
613 void config_clear(void)
615 if (option_d[CONFIG_REFLECTION])
616 glClear(GL_COLOR_BUFFER_BIT |
617 GL_DEPTH_BUFFER_BIT |
618 GL_STENCIL_BUFFER_BIT);
620 glClear(GL_COLOR_BUFFER_BIT |
621 GL_DEPTH_BUFFER_BIT);
624 /*---------------------------------------------------------------------------*/