1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
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.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
19 */
20 // r_misc.c
21
22 #include "quakedef.h"
23 #include "r_local.h"
24
25
26 /*
27 ===============
28 R_CheckVariables
29 ===============
30 */
R_CheckVariables(void)31 void R_CheckVariables (void)
32 {
33 static float oldbright;
34
35 if (r_fullbright.value != oldbright)
36 {
37 oldbright = r_fullbright.value;
38 D_FlushCaches (); // so all lighting changes
39 }
40 }
41
42
43 /*
44 ============
45 Show
46
47 Debugging use
48 ============
49 */
Show(void)50 void Show (void)
51 {
52 vrect_t vr;
53
54 vr.x = vr.y = 0;
55 vr.width = vid.width;
56 vr.height = vid.height;
57 vr.pnext = NULL;
58 VID_Update (&vr);
59 }
60
61
62 /*
63 ====================
64 R_TimeRefresh_f
65
66 For program optimization
67 ====================
68 */
R_TimeRefresh_f(void)69 void R_TimeRefresh_f (void)
70 {
71 int i;
72 float start, stop, time;
73 int startangle;
74 vrect_t vr;
75
76 startangle = r_refdef.viewangles[1];
77
78 start = Sys_FloatTime ();
79 for (i=0 ; i<128 ; i++)
80 {
81 r_refdef.viewangles[1] = i/128.0*360.0;
82
83 VID_LockBuffer ();
84
85 R_RenderView ();
86
87 VID_UnlockBuffer ();
88
89 vr.x = r_refdef.vrect.x;
90 vr.y = r_refdef.vrect.y;
91 vr.width = r_refdef.vrect.width;
92 vr.height = r_refdef.vrect.height;
93 vr.pnext = NULL;
94 VID_Update (&vr);
95 }
96 stop = Sys_FloatTime ();
97 time = stop-start;
98 Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
99
100 r_refdef.viewangles[1] = startangle;
101 }
102
103
104 /*
105 ================
106 R_LineGraph
107
108 Only called by R_DisplayTime
109 ================
110 */
R_LineGraph(int x,int y,int h)111 void R_LineGraph (int x, int y, int h)
112 {
113 int i;
114 byte *dest;
115 int s;
116
117 // FIXME: should be disabled on no-buffer adapters, or should be in the driver
118
119 x += r_refdef.vrect.x;
120 y += r_refdef.vrect.y;
121
122 dest = vid.buffer + vid.rowbytes*y + x;
123
124 s = r_graphheight.value;
125
126 if (h>s)
127 h = s;
128
129 for (i=0 ; i<h ; i++, dest -= vid.rowbytes*2)
130 {
131 dest[0] = 0xff;
132 *(dest-vid.rowbytes) = 0x30;
133 }
134 for ( ; i<s ; i++, dest -= vid.rowbytes*2)
135 {
136 dest[0] = 0x30;
137 *(dest-vid.rowbytes) = 0x30;
138 }
139 }
140
141 /*
142 ==============
143 R_TimeGraph
144
145 Performance monitoring tool
146 ==============
147 */
148 #define MAX_TIMINGS 100
149 extern float mouse_x, mouse_y;
R_TimeGraph(void)150 void R_TimeGraph (void)
151 {
152 static int timex;
153 int a;
154 float r_time2;
155 static byte r_timings[MAX_TIMINGS];
156 int x;
157
158 r_time2 = Sys_FloatTime ();
159
160 a = (r_time2-r_time1)/0.01;
161 //a = fabs(mouse_y * 0.05);
162 //a = (int)((r_refdef.vieworg[2] + 1024)/1)%(int)r_graphheight.value;
163 //a = fabs(velocity[0])/20;
164 //a = ((int)fabs(origin[0])/8)%20;
165 //a = (cl.idealpitch + 30)/5;
166 r_timings[timex] = a;
167 a = timex;
168
169 if (r_refdef.vrect.width <= MAX_TIMINGS)
170 x = r_refdef.vrect.width-1;
171 else
172 x = r_refdef.vrect.width -
173 (r_refdef.vrect.width - MAX_TIMINGS)/2;
174 do
175 {
176 R_LineGraph (x, r_refdef.vrect.height-2, r_timings[a]);
177 if (x==0)
178 break; // screen too small to hold entire thing
179 x--;
180 a--;
181 if (a == -1)
182 a = MAX_TIMINGS-1;
183 } while (a != timex);
184
185 timex = (timex+1)%MAX_TIMINGS;
186 }
187
188
189 /*
190 =============
191 R_PrintTimes
192 =============
193 */
R_PrintTimes(void)194 void R_PrintTimes (void)
195 {
196 float r_time2;
197 float ms;
198
199 r_time2 = Sys_FloatTime ();
200
201 ms = 1000* (r_time2 - r_time1);
202
203 Con_Printf ("%5.1f ms %3i/%3i/%3i poly %3i surf\n",
204 ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf);
205 c_surf = 0;
206 }
207
208
209 /*
210 =============
211 R_PrintDSpeeds
212 =============
213 */
R_PrintDSpeeds(void)214 void R_PrintDSpeeds (void)
215 {
216 float ms, dp_time, r_time2, rw_time, db_time, se_time, de_time, dv_time;
217
218 r_time2 = Sys_FloatTime ();
219
220 dp_time = (dp_time2 - dp_time1) * 1000;
221 rw_time = (rw_time2 - rw_time1) * 1000;
222 db_time = (db_time2 - db_time1) * 1000;
223 se_time = (se_time2 - se_time1) * 1000;
224 de_time = (de_time2 - de_time1) * 1000;
225 dv_time = (dv_time2 - dv_time1) * 1000;
226 ms = (r_time2 - r_time1) * 1000;
227
228 Con_Printf ("%3i %4.1fp %3iw %4.1fb %3is %4.1fe %4.1fv\n",
229 (int)ms, dp_time, (int)rw_time, db_time, (int)se_time, de_time,
230 dv_time);
231 }
232
233
234 /*
235 =============
236 R_PrintAliasStats
237 =============
238 */
R_PrintAliasStats(void)239 void R_PrintAliasStats (void)
240 {
241 Con_Printf ("%3i polygon model drawn\n", r_amodels_drawn);
242 }
243
244
WarpPalette(void)245 void WarpPalette (void)
246 {
247 int i,j;
248 byte newpalette[768];
249 int basecolor[3];
250
251 basecolor[0] = 130;
252 basecolor[1] = 80;
253 basecolor[2] = 50;
254
255 // pull the colors halfway to bright brown
256 for (i=0 ; i<256 ; i++)
257 {
258 for (j=0 ; j<3 ; j++)
259 {
260 newpalette[i*3+j] = (host_basepal[i*3+j] + basecolor[j])/2;
261 }
262 }
263
264 VID_ShiftPalette (newpalette);
265 }
266
267
268 /*
269 ===================
270 R_TransformFrustum
271 ===================
272 */
R_TransformFrustum(void)273 void R_TransformFrustum (void)
274 {
275 int i;
276 vec3_t v, v2;
277
278 for (i=0 ; i<4 ; i++)
279 {
280 v[0] = screenedge[i].normal[2];
281 v[1] = -screenedge[i].normal[0];
282 v[2] = screenedge[i].normal[1];
283
284 v2[0] = v[1]*vright[0] + v[2]*vup[0] + v[0]*vpn[0];
285 v2[1] = v[1]*vright[1] + v[2]*vup[1] + v[0]*vpn[1];
286 v2[2] = v[1]*vright[2] + v[2]*vup[2] + v[0]*vpn[2];
287
288 VectorCopy (v2, view_clipplanes[i].normal);
289
290 view_clipplanes[i].dist = DotProduct (modelorg, v2);
291 }
292 }
293
294
295 #if !id386
296
297 /*
298 ================
299 TransformVector
300 ================
301 */
TransformVector(vec3_t in,vec3_t out)302 void TransformVector (vec3_t in, vec3_t out)
303 {
304 out[0] = DotProduct(in,vright);
305 out[1] = DotProduct(in,vup);
306 out[2] = DotProduct(in,vpn);
307 }
308
309 #endif
310
311
312 /*
313 ================
314 R_TransformPlane
315 ================
316 */
R_TransformPlane(mplane_t * p,float * normal,float * dist)317 void R_TransformPlane (mplane_t *p, float *normal, float *dist)
318 {
319 float d;
320
321 d = DotProduct (r_origin, p->normal);
322 *dist = p->dist - d;
323 // TODO: when we have rotating entities, this will need to use the view matrix
324 TransformVector (p->normal, normal);
325 }
326
327
328 /*
329 ===============
330 R_SetUpFrustumIndexes
331 ===============
332 */
R_SetUpFrustumIndexes(void)333 void R_SetUpFrustumIndexes (void)
334 {
335 int i, j, *pindex;
336
337 pindex = r_frustum_indexes;
338
339 for (i=0 ; i<4 ; i++)
340 {
341 for (j=0 ; j<3 ; j++)
342 {
343 if (view_clipplanes[i].normal[j] < 0)
344 {
345 pindex[j] = j;
346 pindex[j+3] = j+3;
347 }
348 else
349 {
350 pindex[j] = j+3;
351 pindex[j+3] = j;
352 }
353 }
354
355 // FIXME: do just once at start
356 pfrustum_indexes[i] = pindex;
357 pindex += 6;
358 }
359 }
360
361
362 /*
363 ===============
364 R_SetupFrame
365 ===============
366 */
R_SetupFrame(void)367 void R_SetupFrame (void)
368 {
369 int edgecount;
370 vrect_t vrect;
371 float w, h;
372
373 // don't allow cheats in multiplayer
374 if (cl.maxclients > 1)
375 {
376 Cvar_Set ("r_draworder", "0");
377 Cvar_Set ("r_fullbright", "0");
378 Cvar_Set ("r_ambient", "0");
379 Cvar_Set ("r_drawflat", "0");
380 }
381
382 if (r_numsurfs.value)
383 {
384 if ((surface_p - surfaces) > r_maxsurfsseen)
385 r_maxsurfsseen = surface_p - surfaces;
386
387 Con_Printf ("Used %d of %d surfs; %d max\n", surface_p - surfaces,
388 surf_max - surfaces, r_maxsurfsseen);
389 }
390
391 if (r_numedges.value)
392 {
393 edgecount = edge_p - r_edges;
394
395 if (edgecount > r_maxedgesseen)
396 r_maxedgesseen = edgecount;
397
398 Con_Printf ("Used %d of %d edges; %d max\n", edgecount,
399 r_numallocatededges, r_maxedgesseen);
400 }
401
402 r_refdef.ambientlight = r_ambient.value;
403
404 if (r_refdef.ambientlight < 0)
405 r_refdef.ambientlight = 0;
406
407 if (!sv.active)
408 r_draworder.value = 0; // don't let cheaters look behind walls
409
410 R_CheckVariables ();
411
412 R_AnimateLight ();
413
414 r_framecount++;
415
416 numbtofpolys = 0;
417
418 // debugging
419 #if 0
420 r_refdef.vieworg[0]= 80;
421 r_refdef.vieworg[1]= 64;
422 r_refdef.vieworg[2]= 40;
423 r_refdef.viewangles[0]= 0;
424 r_refdef.viewangles[1]= 46.763641357;
425 r_refdef.viewangles[2]= 0;
426 #endif
427
428 // build the transformation matrix for the given view angles
429 VectorCopy (r_refdef.vieworg, modelorg);
430 VectorCopy (r_refdef.vieworg, r_origin);
431
432 AngleVectors (r_refdef.viewangles, vpn, vright, vup);
433
434 // current viewleaf
435 r_oldviewleaf = r_viewleaf;
436 r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
437
438 r_dowarpold = r_dowarp;
439 r_dowarp = r_waterwarp.value && (r_viewleaf->contents <= CONTENTS_WATER);
440
441 if ((r_dowarp != r_dowarpold) || r_viewchanged || lcd_x.value)
442 {
443 if (r_dowarp)
444 {
445 if ((vid.width <= vid.maxwarpwidth) &&
446 (vid.height <= vid.maxwarpheight))
447 {
448 vrect.x = 0;
449 vrect.y = 0;
450 vrect.width = vid.width;
451 vrect.height = vid.height;
452
453 R_ViewChanged (&vrect, sb_lines, vid.aspect);
454 }
455 else
456 {
457 w = vid.width;
458 h = vid.height;
459
460 if (w > vid.maxwarpwidth)
461 {
462 h *= (float)vid.maxwarpwidth / w;
463 w = vid.maxwarpwidth;
464 }
465
466 if (h > vid.maxwarpheight)
467 {
468 h = vid.maxwarpheight;
469 w *= (float)vid.maxwarpheight / h;
470 }
471
472 vrect.x = 0;
473 vrect.y = 0;
474 vrect.width = (int)w;
475 vrect.height = (int)h;
476
477 R_ViewChanged (&vrect,
478 (int)((float)sb_lines * (h/(float)vid.height)),
479 vid.aspect * (h / w) *
480 ((float)vid.width / (float)vid.height));
481 }
482 }
483 else
484 {
485 vrect.x = 0;
486 vrect.y = 0;
487 vrect.width = vid.width;
488 vrect.height = vid.height;
489
490 R_ViewChanged (&vrect, sb_lines, vid.aspect);
491 }
492
493 r_viewchanged = false;
494 }
495
496 // start off with just the four screen edge clip planes
497 R_TransformFrustum ();
498
499 // save base values
500 VectorCopy (vpn, base_vpn);
501 VectorCopy (vright, base_vright);
502 VectorCopy (vup, base_vup);
503 VectorCopy (modelorg, base_modelorg);
504
505 R_SetSkyFrame ();
506
507 R_SetUpFrustumIndexes ();
508
509 r_cache_thrash = false;
510
511 // clear frame counts
512 c_faceclip = 0;
513 d_spanpixcount = 0;
514 r_polycount = 0;
515 r_drawnpolycount = 0;
516 r_wholepolycount = 0;
517 r_amodels_drawn = 0;
518 r_outofsurfaces = 0;
519 r_outofedges = 0;
520
521 D_SetupFrame ();
522 }
523
524