r_misc.c

   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 */
  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 */
  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 */
  69 void R_TimeRefresh_f (void)
  70 {
  71         int                     i;
  72         double          start, stop, time;
  73         int                     startangle;
  74         vrect_t         vr;
  75
  76 #ifdef PSP_SOFTWARE_VIDEO
  77         startangle = r_refdef.viewangles[1];
  78
  79         start = Sys_FloatTime ();
  80         for (i=0 ; i<128 ; i++)
  81         {
  82                 r_refdef.viewangles[1] = i/128.0*360.0;
  83
  84                 VID_LockBuffer ();
  85
  86                 R_RenderView ();
  87
  88                 VID_UnlockBuffer ();
  89
  90                 vr.x = r_refdef.vrect.x;
  91                 vr.y = r_refdef.vrect.y;
  92                 vr.width = r_refdef.vrect.width;
  93                 vr.height = r_refdef.vrect.height;
  94                 vr.pnext = NULL;
  95                 VID_Update (&vr);
  96         }
  97         stop = Sys_FloatTime ();
  98         time = stop-start;
  99         Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
 100
 101         r_refdef.viewangles[1] = startangle;
 102 #else
 103         Con_Printf ("Sorry: 'timerefresh' command disabled\n");
 104 #endif
 105 }
 106
 107
 108 /*
 109 ================
 110 R_LineGraph
 111
 112 Only called by R_DisplayTime
 113 ================
 114 */
 115 void R_LineGraph (int x, int y, int h)
 116 {
 117         int             i;
 118         byte    *dest;
 119         int             s;
 120
 121 // FIXME: should be disabled on no-buffer adapters, or should be in the driver
 122
 123         x += r_refdef.vrect.x;
 124         y += r_refdef.vrect.y;
 125
 126         dest = vid.buffer + vid.rowbytes*y + x;
 127
 128         s = r_graphheight.value;
 129
 130         if (h>s)
 131                 h = s;
 132
 133         for (i=0 ; i<h ; i++, dest -= vid.rowbytes*2)
 134         {
 135                 dest[0] = 0xff;
 136                 *(dest-vid.rowbytes) = 0x30;
 137         }
 138         for ( ; i<s ; i++, dest -= vid.rowbytes*2)
 139         {
 140                 dest[0] = 0x30;
 141                 *(dest-vid.rowbytes) = 0x30;
 142         }
 143 }
 144
 145 /*
 146 ==============
 147 R_TimeGraph
 148
 149 Performance monitoring tool
 150 ==============
 151 */
 152 #define MAX_TIMINGS             100
 153 extern float mouse_x, mouse_y;
 154 void R_TimeGraph (void)
 155 {
 156         static  int             timex;
 157         int             a;
 158         double  r_time2;
 159         static byte     r_timings[MAX_TIMINGS];
 160         int             x;
 161
 162         r_time2 = Sys_FloatTime ();
 163
 164         a = (r_time2-r_time1)/0.01;
 165 //a = fabsf(mouse_y * 0.05);
 166 //a = (int)((r_refdef.vieworg[2] + 1024)/1)%(int)r_graphheight.value;
 167 //a = fabsf(velocity[0])/20;
 168 //a = ((int)fabsf(origin[0])/8)%20;
 169 //a = (cl.idealpitch + 30)/5;
 170         r_timings[timex] = a;
 171         a = timex;
 172
 173         if (r_refdef.vrect.width <= MAX_TIMINGS)
 174                 x = r_refdef.vrect.width-1;
 175         else
 176                 x = r_refdef.vrect.width -
 177                                 (r_refdef.vrect.width - MAX_TIMINGS)/2;
 178         do
 179         {
 180                 R_LineGraph (x, r_refdef.vrect.height-2, r_timings[a]);
 181                 if (x==0)
 182                         break;          // screen too small to hold entire thing
 183                 x--;
 184                 a--;
 185                 if (a == -1)
 186                         a = MAX_TIMINGS-1;
 187         } while (a != timex);
 188
 189         timex = (timex+1)%MAX_TIMINGS;
 190 }
 191
 192
 193 /*
 194 =============
 195 R_PrintTimes
 196 =============
 197 */
 198 void R_PrintTimes (void)
 199 {
 200         double  r_time2;
 201         double          ms;
 202
 203         r_time2 = Sys_FloatTime ();
 204
 205         ms = 1000* (r_time2 - r_time1);
 206
 207         Con_Printf ("%5.1f ms %3i/%3i/%3i poly %3i surf\n",
 208                                 ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf);
 209         c_surf = 0;
 210 }
 211
 212
 213 /*
 214 =============
 215 R_PrintDSpeeds
 216 =============
 217 */
 218 void R_PrintDSpeeds (void)
 219 {
 220         float   ms, dp_time, r_time2, rw_time, db_time, se_time, de_time, dv_time;
 221
 222         r_time2 = Sys_FloatTime ();
 223
 224         dp_time = (dp_time2 - dp_time1) * 1000;
 225         rw_time = (rw_time2 - rw_time1) * 1000;
 226         db_time = (db_time2 - db_time1) * 1000;
 227         se_time = (se_time2 - se_time1) * 1000;
 228         de_time = (de_time2 - de_time1) * 1000;
 229         dv_time = (dv_time2 - dv_time1) * 1000;
 230         ms = (r_time2 - r_time1) * 1000;
 231
 232         Con_Printf ("%3i %4.1fp %3iw %4.1fb %3is %4.1fe %4.1fv\n",
 233                                 (int)ms, dp_time, (int)rw_time, db_time, (int)se_time, de_time,
 234                                 dv_time);
 235 }
 236
 237
 238 /*
 239 =============
 240 R_PrintAliasStats
 241 =============
 242 */
 243 void R_PrintAliasStats (void)
 244 {
 245         Con_Printf ("%3i polygon model drawn\n", r_amodels_drawn);
 246 }
 247
 248
 249 void WarpPalette (void)
 250 {
 251         int             i,j;
 252         byte    newpalette[768];
 253         int             basecolor[3];
 254
 255         basecolor[0] = 130;
 256         basecolor[1] = 80;
 257         basecolor[2] = 50;
 258
 259 // pull the colors halfway to bright brown
 260         for (i=0 ; i<256 ; i++)
 261         {
 262                 for (j=0 ; j<3 ; j++)
 263                 {
 264                         newpalette[i*3+j] = (host_basepal[i*3+j] + basecolor[j])/2;
 265                 }
 266         }
 267
 268         VID_ShiftPalette (newpalette);
 269 }
 270
 271
 272 /*
 273 ===================
 274 R_TransformFrustum
 275 ===================
 276 */
 277 void R_TransformFrustum (void)
 278 {
 279         int             i;
 280         vec3_t  v, v2;
 281
 282         for (i=0 ; i<4 ; i++)
 283         {
 284                 v[0] = screenedge[i].normal[2];
 285                 v[1] = -screenedge[i].normal[0];
 286                 v[2] = screenedge[i].normal[1];
 287
 288                 v2[0] = v[1]*vright[0] + v[2]*vup[0] + v[0]*vpn[0];
 289                 v2[1] = v[1]*vright[1] + v[2]*vup[1] + v[0]*vpn[1];
 290                 v2[2] = v[1]*vright[2] + v[2]*vup[2] + v[0]*vpn[2];
 291
 292                 VectorCopy (v2, view_clipplanes[i].normal);
 293
 294                 view_clipplanes[i].dist = DotProduct (modelorg, v2);
 295         }
 296 }
 297
 298
 299 #if     !id386
 300
 301 /*
 302 ================
 303 TransformVector
 304 ================
 305 */
 306 void TransformVector (vec3_t in, vec3_t out)
 307 {
 308         out[0] = DotProduct(in,vright);
 309         out[1] = DotProduct(in,vup);
 310         out[2] = DotProduct(in,vpn);
 311 }
 312
 313 #endif
 314
 315
 316 /*
 317 ================
 318 R_TransformPlane
 319 ================
 320 */
 321 void R_TransformPlane (mplane_t *p, float *normal, float *dist)
 322 {
 323         float   d;
 324
 325         d = DotProduct (r_origin, p->normal);
 326         *dist = p->dist - d;
 327 // TODO: when we have rotating entities, this will need to use the view matrix
 328         TransformVector (p->normal, normal);
 329 }
 330
 331
 332 /*
 333 ===============
 334 R_SetUpFrustumIndexes
 335 ===============
 336 */
 337 void R_SetUpFrustumIndexes (void)
 338 {
 339         int             i, j, *pindex;
 340
 341         pindex = r_frustum_indexes;
 342
 343         for (i=0 ; i<4 ; i++)
 344         {
 345                 for (j=0 ; j<3 ; j++)
 346                 {
 347                         if (view_clipplanes[i].normal[j] < 0)
 348                         {
 349                                 pindex[j] = j;
 350                                 pindex[j+3] = j+3;
 351                         }
 352                         else
 353                         {
 354                                 pindex[j] = j+3;
 355                                 pindex[j+3] = j;
 356                         }
 357                 }
 358
 359         // FIXME: do just once at start
 360                 pfrustum_indexes[i] = pindex;
 361                 pindex += 6;
 362         }
 363 }
 364
 365
 366 /*
 367 ===============
 368 R_SetupFrame
 369 ===============
 370 */
 371 void R_SetupFrame (void)
 372 {
 373         int                             edgecount;
 374         vrect_t                 vrect;
 375         float                   w, h;
 376
 377 // don't allow cheats in multiplayer
 378         if (cl.maxclients > 1)
 379         {
 380                 Cvar_Set ("r_draworder", "0");
 381                 Cvar_Set ("r_fullbright", "0");
 382                 Cvar_Set ("r_ambient", "0");
 383                 Cvar_Set ("r_drawflat", "0");
 384         }
 385
 386         if (r_numsurfs.value)
 387         {
 388                 if ((surface_p - surfaces) > r_maxsurfsseen)
 389                         r_maxsurfsseen = surface_p - surfaces;
 390
 391                 Con_Printf ("Used %d of %d surfs; %d max\n", surface_p - surfaces,
 392                                 surf_max - surfaces, r_maxsurfsseen);
 393         }
 394
 395         if (r_numedges.value)
 396         {
 397                 edgecount = edge_p - r_edges;
 398
 399                 if (edgecount > r_maxedgesseen)
 400                         r_maxedgesseen = edgecount;
 401
 402                 Con_Printf ("Used %d of %d edges; %d max\n", edgecount,
 403                                 r_numallocatededges, r_maxedgesseen);
 404         }
 405
 406         r_refdef.ambientlight = r_ambient.value;
 407
 408         if (r_refdef.ambientlight < 0)
 409                 r_refdef.ambientlight = 0;
 410
 411         if (!sv.active)
 412                 r_draworder.value = 0;  // don't let cheaters look behind walls
 413
 414         R_CheckVariables ();
 415
 416         R_AnimateLight ();
 417
 418         r_framecount++;
 419
 420         numbtofpolys = 0;
 421
 422 // debugging
 423 #if 0
 424 r_refdef.vieworg[0]=  80;
 425 r_refdef.vieworg[1]=      64;
 426 r_refdef.vieworg[2]=      40;
 427 r_refdef.viewangles[0]=    0;
 428 r_refdef.viewangles[1]=    46.763641357;
 429 r_refdef.viewangles[2]=    0;
 430 #endif
 431
 432 // build the transformation matrix for the given view angles
 433         VectorCopy (r_refdef.vieworg, modelorg);
 434         VectorCopy (r_refdef.vieworg, r_origin);
 435
 436         AngleVectors (r_refdef.viewangles, vpn, vright, vup);
 437
 438 // current viewleaf
 439         r_oldviewleaf = r_viewleaf;
 440         r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
 441
 442         r_dowarpold = r_dowarp;
 443         r_dowarp = r_waterwarp.value && (r_viewleaf->contents <= CONTENTS_WATER);
 444
 445         if ((r_dowarp != r_dowarpold) || r_viewchanged || lcd_x.value)
 446         {
 447                 if (r_dowarp)
 448                 {
 449                         if ((vid.width <= vid.maxwarpwidth) &&
 450                                 (vid.height <= vid.maxwarpheight))
 451                         {
 452                                 vrect.x = 0;
 453                                 vrect.y = 0;
 454                                 vrect.width = vid.width;
 455                                 vrect.height = vid.height;
 456
 457                                 R_ViewChanged (&vrect, sb_lines, vid.aspect);
 458                         }
 459                         else
 460                         {
 461                                 w = vid.width;
 462                                 h = vid.height;
 463
 464                                 if (w > vid.maxwarpwidth)
 465                                 {
 466                                         h *= (float)vid.maxwarpwidth / w;
 467                                         w = vid.maxwarpwidth;
 468                                 }
 469
 470                                 if (h > vid.maxwarpheight)
 471                                 {
 472                                         h = vid.maxwarpheight;
 473                                         w *= (float)vid.maxwarpheight / h;
 474                                 }
 475
 476                                 vrect.x = 0;
 477                                 vrect.y = 0;
 478                                 vrect.width = (int)w;
 479                                 vrect.height = (int)h;
 480
 481                                 R_ViewChanged (&vrect,
 482                                                            (int)((float)sb_lines * (h/(float)vid.height)),
 483                                                            vid.aspect * (h / w) *
 484                                                                  ((float)vid.width / (float)vid.height));
 485                         }
 486                 }
 487                 else
 488                 {
 489                         vrect.x = 0;
 490                         vrect.y = 0;
 491                         vrect.width = vid.width;
 492                         vrect.height = vid.height;
 493
 494                         R_ViewChanged (&vrect, sb_lines, vid.aspect);
 495                 }
 496
 497                 r_viewchanged = false;
 498         }
 499
 500 // start off with just the four screen edge clip planes
 501         R_TransformFrustum ();
 502
 503 // save base values
 504         VectorCopy (vpn, base_vpn);
 505         VectorCopy (vright, base_vright);
 506         VectorCopy (vup, base_vup);
 507         VectorCopy (modelorg, base_modelorg);
 508
 509         R_SetSkyFrame ();
 510
 511         R_SetUpFrustumIndexes ();
 512
 513         r_cache_thrash = false;
 514
 515 // clear frame counts
 516         c_faceclip = 0;
 517         d_spanpixcount = 0;
 518         r_polycount = 0;
 519         r_drawnpolycount = 0;
 520         r_wholepolycount = 0;
 521         r_amodels_drawn = 0;
 522         r_outofsurfaces = 0;
 523         r_outofedges = 0;
 524
 525         D_SetupFrame ();
 526 }
 527