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1.1 root 1: // r_misc.c
2:
3: #include "quakedef.h"
4: #include "r_local.h"
5:
6:
7: /*
8: ===============
9: R_CheckVariables
10: ===============
11: */
12: void R_CheckVariables (void)
13: {
14: static float oldbright;
15:
16: if (r_fullbright.value != oldbright)
17: {
18: oldbright = r_fullbright.value;
19: D_FlushCaches (); // so all lighting changes
20: }
21: }
22:
23:
24: /*
25: ============
26: Show
27:
28: Debugging use
29: ============
30: */
31: void Show (void)
32: {
33: vrect_t vr;
34:
35: vr.x = vr.y = 0;
36: vr.width = vid.width;
37: vr.height = vid.height;
38: vr.pnext = NULL;
39: VID_Update (&vr);
40: }
41:
42:
43: /*
44: ====================
45: R_TimeRefresh_f
46:
47: For program optimization
48: ====================
49: */
50: void R_TimeRefresh_f (void)
51: {
52: int i;
53: float start, stop, time;
54: int startangle;
55: vrect_t vr;
56:
57: startangle = r_refdef.viewangles[1];
58:
59: start = Sys_FloatTime ();
60: for (i=0 ; i<128 ; i++)
61: {
62: r_refdef.viewangles[1] = i/128.0*360.0;
63: R_RenderView ();
64: vr.x = r_refdef.vrect.x;
65: vr.y = r_refdef.vrect.y;
66: vr.width = r_refdef.vrect.width;
67: vr.height = r_refdef.vrect.height;
68: vr.pnext = NULL;
69: VID_Update (&vr);
70: }
71: stop = Sys_FloatTime ();
72: time = stop-start;
73: Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
74:
75: r_refdef.viewangles[1] = startangle;
76: }
77:
78:
79: /*
80: ================
81: R_LineGraph
82:
83: Only called by R_DisplayTime
84: ================
85: */
86: void R_LineGraph (int x, int y, int h)
87: {
88: int i;
89: byte *dest;
90: int s;
91:
92: // FIXME: should be disabled on no-buffer adapters, or should be in the driver
93:
94: x += r_refdef.vrect.x;
95: y += r_refdef.vrect.y;
96:
97: dest = vid.buffer + vid.rowbytes*y + x;
98:
99: s = r_graphheight.value;
100:
101: if (h>s)
102: h = s;
103:
104: for (i=0 ; i<h ; i++, dest -= vid.rowbytes*2)
105: {
106: dest[0] = 0xff;
107: *(dest-vid.rowbytes) = 0x30;
108: }
109: for ( ; i<s ; i++, dest -= vid.rowbytes*2)
110: {
111: dest[0] = 0x30;
112: *(dest-vid.rowbytes) = 0x30;
113: }
114: }
115:
116: /*
117: ==============
118: R_TimeGraph
119:
120: Performance monitoring tool
121: ==============
122: */
123: #define MAX_TIMINGS 100
124: extern float mouse_x, mouse_y;
125: void R_TimeGraph (void)
126: {
127: static int timex;
128: int a;
129: float r_time2;
130: static byte r_timings[MAX_TIMINGS];
131: int x;
132:
133: r_time2 = Sys_FloatTime ();
134:
135: a = (r_time2-r_time1)/0.01;
136: //a = fabs(mouse_y * 0.05);
137: //a = (int)((r_refdef.vieworg[2] + 1024)/1)%(int)r_graphheight.value;
138: //a = fabs(velocity[0])/20;
139: //a = ((int)fabs(origin[0])/8)%20;
140: //a = (cl.idealpitch + 30)/5;
141: r_timings[timex] = a;
142: a = timex;
143:
144: if (r_refdef.vrect.width <= MAX_TIMINGS)
145: x = r_refdef.vrect.width-1;
146: else
147: x = r_refdef.vrect.width -
148: (r_refdef.vrect.width - MAX_TIMINGS)/2;
149: do
150: {
151: R_LineGraph (x, r_refdef.vrect.height-2, r_timings[a]);
152: if (x==0)
153: break; // screen too small to hold entire thing
154: x--;
155: a--;
156: if (a == -1)
157: a = MAX_TIMINGS-1;
158: } while (a != timex);
159:
160: timex = (timex+1)%MAX_TIMINGS;
161: }
162:
163:
164: /*
165: =============
166: R_PrintTimes
167: =============
168: */
169: void R_PrintTimes (void)
170: {
171: float r_time2;
172: float ms;
173:
174: r_time2 = Sys_FloatTime ();
175:
176: ms = 1000* (r_time2 - r_time1);
177:
178: Con_Printf ("%5.1f ms %3i/%3i/%3i poly %3i surf\n",
179: ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf);
180: c_surf = 0;
181: }
182:
183:
184: /*
185: =============
186: R_PrintDSpeeds
187: =============
188: */
189: void R_PrintDSpeeds (void)
190: {
191: float ms, dp_time, r_time2, rw_time, db_time, se_time, de_time, dv_time;
192:
193: r_time2 = Sys_FloatTime ();
194:
195: dp_time = (dp_time2 - dp_time1) * 1000;
196: rw_time = (rw_time2 - rw_time1) * 1000;
197: db_time = (db_time2 - db_time1) * 1000;
198: se_time = (se_time2 - se_time1) * 1000;
199: de_time = (de_time2 - de_time1) * 1000;
200: dv_time = (dv_time2 - dv_time1) * 1000;
201: ms = (r_time2 - r_time1) * 1000;
202:
203: Con_Printf ("%3i %4.1fp %3iw %4.1fb %3is %4.1fe %4.1fv\n",
204: (int)ms, dp_time, (int)rw_time, db_time, (int)se_time, de_time,
205: dv_time);
206: }
207:
208:
209: /*
210: =============
211: R_PrintAliasStats
212: =============
213: */
214: void R_PrintAliasStats (void)
215: {
216: Con_Printf ("%3i polygon model drawn\n", r_amodels_drawn);
217: }
218:
219:
220: void WarpPalette (void)
221: {
222: int i,j;
223: byte newpalette[768];
224: int basecolor[3];
225:
226: basecolor[0] = 130;
227: basecolor[1] = 80;
228: basecolor[2] = 50;
229:
230: // pull the colors halfway to bright brown
231: for (i=0 ; i<256 ; i++)
232: {
233: for (j=0 ; j<3 ; j++)
234: {
235: newpalette[i*3+j] = (host_basepal[i*3+j] + basecolor[j])/2;
236: }
237: }
238:
239: VID_ShiftPalette (newpalette);
240: }
241:
242:
243: /*
244: ===================
245: R_TransformFrustum
246: ===================
247: */
248: void R_TransformFrustum (void)
249: {
250: int i;
251: vec3_t v, v2;
252:
253: for (i=0 ; i<4 ; i++)
254: {
255: v[0] = screenedge[i].normal[2];
256: v[1] = -screenedge[i].normal[0];
257: v[2] = screenedge[i].normal[1];
258:
259: v2[0] = v[1]*vright[0] + v[2]*vup[0] + v[0]*vpn[0];
260: v2[1] = v[1]*vright[1] + v[2]*vup[1] + v[0]*vpn[1];
261: v2[2] = v[1]*vright[2] + v[2]*vup[2] + v[0]*vpn[2];
262:
263: VectorCopy (v2, view_clipplanes[i].normal);
264:
265: view_clipplanes[i].dist = DotProduct (modelorg, v2);
266: }
267: }
268:
269:
270: #if !id386
271:
272: /*
273: ================
274: TransformVector
275: ================
276: */
277: void TransformVector (vec3_t in, vec3_t out)
278: {
279: out[0] = DotProduct(in,vright);
280: out[1] = DotProduct(in,vup);
281: out[2] = DotProduct(in,vpn);
282: }
283:
284: #endif
285:
286:
287: /*
288: ================
289: R_TransformPlane
290: ================
291: */
292: void R_TransformPlane (mplane_t *p, float *normal, float *dist)
293: {
294: float d;
295:
296: d = DotProduct (r_origin, p->normal);
297: *dist = p->dist - d;
298: // TODO: when we have rotating entities, this will need to use the view matrix
299: TransformVector (p->normal, normal);
300: }
301:
302:
303: /*
304: ===============
305: R_SetUpFrustumIndexes
306: ===============
307: */
308: void R_SetUpFrustumIndexes (void)
309: {
310: int i, j, *pindex;
311:
312: pindex = r_frustum_indexes;
313:
314: for (i=0 ; i<4 ; i++)
315: {
316: for (j=0 ; j<3 ; j++)
317: {
318: if (view_clipplanes[i].normal[j] < 0)
319: {
320: pindex[j] = j;
321: pindex[j+3] = j+3;
322: }
323: else
324: {
325: pindex[j] = j+3;
326: pindex[j+3] = j;
327: }
328: }
329:
330: // FIXME: do just once at start
331: pfrustum_indexes[i] = pindex;
332: pindex += 6;
333: }
334: }
335:
336:
337: /*
338: ===============
339: R_SetupFrame
340: ===============
341: */
342: void R_SetupFrame (void)
343: {
344: int edgecount;
345: vrect_t vrect;
346: float w, h;
347:
348: // don't allow cheats in multiplayer
349: if (cl.maxclients > 1)
350: {
351: Cvar_Set ("r_draworder", "0");
352: Cvar_Set ("r_fullbright", "0");
353: Cvar_Set ("r_ambient", "0");
354: Cvar_Set ("r_drawflat", "0");
355: }
356:
357: if (r_numsurfs.value)
358: {
359: if ((surface_p - surfaces) > r_maxsurfsseen)
360: r_maxsurfsseen = surface_p - surfaces;
361:
362: Con_Printf ("Used %d of %d surfs; %d max\n", surface_p - surfaces,
363: surf_max - surfaces, r_maxsurfsseen);
364: }
365:
366: if (r_numedges.value)
367: {
368: edgecount = edge_p - r_edges;
369:
370: if (edgecount > r_maxedgesseen)
371: r_maxedgesseen = edgecount;
372:
373: Con_Printf ("Used %d of %d edges; %d max\n", edgecount,
374: r_numallocatededges, r_maxedgesseen);
375: }
376:
377: r_refdef.ambientlight = r_ambient.value;
378:
379: if (r_refdef.ambientlight < 0)
380: r_refdef.ambientlight = 0;
381:
382: if (!sv.active)
383: r_draworder.value = 0; // don't let cheaters look behind walls
384:
385: R_CheckVariables ();
386:
387: R_AnimateLight ();
388:
389: r_framecount++;
390:
391: numbtofpolys = 0;
392:
393: // debugging
394: #if 0
395: r_refdef.vieworg[0]= 80;
396: r_refdef.vieworg[1]= 64;
397: r_refdef.vieworg[2]= 40;
398: r_refdef.viewangles[0]= 0;
399: r_refdef.viewangles[1]= 46.763641357;
400: r_refdef.viewangles[2]= 0;
401: #endif
402:
403: // build the transformation matrix for the given view angles
404: VectorCopy (r_refdef.vieworg, modelorg);
405: VectorCopy (r_refdef.vieworg, r_origin);
406:
407: AngleVectors (r_refdef.viewangles, vpn, vright, vup);
408:
409: // current viewleaf
410: r_oldviewleaf = r_viewleaf;
411: r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
412:
413: r_dowarpold = r_dowarp;
414: r_dowarp = r_waterwarp.value && (r_viewleaf->contents <= CONTENTS_WATER);
415:
416: if ((r_dowarp != r_dowarpold) || r_viewchanged)
417: {
418: if (r_dowarp)
419: {
420: if ((vid.width <= vid.maxwarpwidth) &&
421: (vid.height <= vid.maxwarpheight))
422: {
423: vrect.x = 0;
424: vrect.y = 0;
425: vrect.width = vid.width;
426: vrect.height = vid.height;
427:
428: R_ViewChanged (&vrect, sb_lines, vid.aspect);
429: }
430: else
431: {
432: w = vid.width;
433: h = vid.height;
434:
435: if (w > vid.maxwarpwidth)
436: {
437: h *= (float)vid.maxwarpwidth / w;
438: w = vid.maxwarpwidth;
439: }
440:
441: if (h > vid.maxwarpheight)
442: {
443: h = vid.maxwarpheight;
444: w *= (float)vid.maxwarpheight / h;
445: }
446:
447: vrect.x = 0;
448: vrect.y = 0;
449: vrect.width = (int)w;
450: vrect.height = (int)h;
451:
452: R_ViewChanged (&vrect,
453: (int)((float)sb_lines * (h/(float)vid.height)),
454: vid.aspect * (h / w) *
455: ((float)vid.width / (float)vid.height));
456: }
457: }
458: else
459: {
460: vrect.x = 0;
461: vrect.y = 0;
462: vrect.width = vid.width;
463: vrect.height = vid.height;
464:
465: R_ViewChanged (&vrect, sb_lines, vid.aspect);
466: }
467:
468: r_viewchanged = false;
469: }
470:
471: // start off with just the four screen edge clip planes
472: R_TransformFrustum ();
473:
474: // save base values
475: VectorCopy (vpn, base_vpn);
476: VectorCopy (vright, base_vright);
477: VectorCopy (vup, base_vup);
478:
479: R_SetSkyFrame ();
480:
481: R_SetUpFrustumIndexes ();
482:
483: r_cache_thrash = false;
484:
485: // clear frame counts
486: c_faceclip = 0;
487: d_spanpixcount = 0;
488: r_polycount = 0;
489: r_drawnpolycount = 0;
490: r_wholepolycount = 0;
491: r_amodels_drawn = 0;
492: r_outofsurfaces = 0;
493: r_outofedges = 0;
494:
495: D_SetupFrame ();
496: }
497:
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