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-rw-r--r--apps/plugins/sdl/progs/quake/r_misc.c523
1 files changed, 523 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/quake/r_misc.c b/apps/plugins/sdl/progs/quake/r_misc.c
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+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+*/
+// r_misc.c
+
+#include "quakedef.h"
+#include "r_local.h"
+
+
+/*
+===============
+R_CheckVariables
+===============
+*/
+void R_CheckVariables (void)
+{
+ static float oldbright;
+
+ if (r_fullbright.value != oldbright)
+ {
+ oldbright = r_fullbright.value;
+ D_FlushCaches (); // so all lighting changes
+ }
+}
+
+
+/*
+============
+Show
+
+Debugging use
+============
+*/
+void Show (void)
+{
+ vrect_t vr;
+
+ vr.x = vr.y = 0;
+ vr.width = vid.width;
+ vr.height = vid.height;
+ vr.pnext = NULL;
+ VID_Update (&vr);
+}
+
+
+/*
+====================
+R_TimeRefresh_f
+
+For program optimization
+====================
+*/
+void R_TimeRefresh_f (void)
+{
+ int i;
+ float start, stop, time;
+ int startangle;
+ vrect_t vr;
+
+ startangle = r_refdef.viewangles[1];
+
+ start = Sys_FloatTime ();
+ for (i=0 ; i<128 ; i++)
+ {
+ r_refdef.viewangles[1] = i/128.0*360.0;
+
+ VID_LockBuffer ();
+
+ R_RenderView ();
+
+ VID_UnlockBuffer ();
+
+ vr.x = r_refdef.vrect.x;
+ vr.y = r_refdef.vrect.y;
+ vr.width = r_refdef.vrect.width;
+ vr.height = r_refdef.vrect.height;
+ vr.pnext = NULL;
+ VID_Update (&vr);
+ }
+ stop = Sys_FloatTime ();
+ time = stop-start;
+ Con_Printf ("%f seconds (%f fps)\n", time, 128/time);
+
+ r_refdef.viewangles[1] = startangle;
+}
+
+
+/*
+================
+R_LineGraph
+
+Only called by R_DisplayTime
+================
+*/
+void R_LineGraph (int x, int y, int h)
+{
+ int i;
+ byte *dest;
+ int s;
+
+// FIXME: should be disabled on no-buffer adapters, or should be in the driver
+
+ x += r_refdef.vrect.x;
+ y += r_refdef.vrect.y;
+
+ dest = vid.buffer + vid.rowbytes*y + x;
+
+ s = r_graphheight.value;
+
+ if (h>s)
+ h = s;
+
+ for (i=0 ; i<h ; i++, dest -= vid.rowbytes*2)
+ {
+ dest[0] = 0xff;
+ *(dest-vid.rowbytes) = 0x30;
+ }
+ for ( ; i<s ; i++, dest -= vid.rowbytes*2)
+ {
+ dest[0] = 0x30;
+ *(dest-vid.rowbytes) = 0x30;
+ }
+}
+
+/*
+==============
+R_TimeGraph
+
+Performance monitoring tool
+==============
+*/
+#define MAX_TIMINGS 100
+extern float mouse_x, mouse_y;
+void R_TimeGraph (void)
+{
+ static int timex;
+ int a;
+ float r_time2;
+ static byte r_timings[MAX_TIMINGS];
+ int x;
+
+ r_time2 = Sys_FloatTime ();
+
+ a = (r_time2-r_time1)/0.01;
+//a = fabs(mouse_y * 0.05);
+//a = (int)((r_refdef.vieworg[2] + 1024)/1)%(int)r_graphheight.value;
+//a = fabs(velocity[0])/20;
+//a = ((int)fabs(origin[0])/8)%20;
+//a = (cl.idealpitch + 30)/5;
+ r_timings[timex] = a;
+ a = timex;
+
+ if (r_refdef.vrect.width <= MAX_TIMINGS)
+ x = r_refdef.vrect.width-1;
+ else
+ x = r_refdef.vrect.width -
+ (r_refdef.vrect.width - MAX_TIMINGS)/2;
+ do
+ {
+ R_LineGraph (x, r_refdef.vrect.height-2, r_timings[a]);
+ if (x==0)
+ break; // screen too small to hold entire thing
+ x--;
+ a--;
+ if (a == -1)
+ a = MAX_TIMINGS-1;
+ } while (a != timex);
+
+ timex = (timex+1)%MAX_TIMINGS;
+}
+
+
+/*
+=============
+R_PrintTimes
+=============
+*/
+void R_PrintTimes (void)
+{
+ float r_time2;
+ float ms;
+
+ r_time2 = Sys_FloatTime ();
+
+ ms = 1000* (r_time2 - r_time1);
+
+ Con_Printf ("%5.1f ms %3i/%3i/%3i poly %3i surf\n",
+ ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf);
+ c_surf = 0;
+}
+
+
+/*
+=============
+R_PrintDSpeeds
+=============
+*/
+void R_PrintDSpeeds (void)
+{
+ float ms, dp_time, r_time2, rw_time, db_time, se_time, de_time, dv_time;
+
+ r_time2 = Sys_FloatTime ();
+
+ dp_time = (dp_time2 - dp_time1) * 1000;
+ rw_time = (rw_time2 - rw_time1) * 1000;
+ db_time = (db_time2 - db_time1) * 1000;
+ se_time = (se_time2 - se_time1) * 1000;
+ de_time = (de_time2 - de_time1) * 1000;
+ dv_time = (dv_time2 - dv_time1) * 1000;
+ ms = (r_time2 - r_time1) * 1000;
+
+ Con_Printf ("%3i %4.1fp %3iw %4.1fb %3is %4.1fe %4.1fv\n",
+ (int)ms, dp_time, (int)rw_time, db_time, (int)se_time, de_time,
+ dv_time);
+}
+
+
+/*
+=============
+R_PrintAliasStats
+=============
+*/
+void R_PrintAliasStats (void)
+{
+ Con_Printf ("%3i polygon model drawn\n", r_amodels_drawn);
+}
+
+
+void WarpPalette (void)
+{
+ int i,j;
+ byte newpalette[768];
+ int basecolor[3];
+
+ basecolor[0] = 130;
+ basecolor[1] = 80;
+ basecolor[2] = 50;
+
+// pull the colors halfway to bright brown
+ for (i=0 ; i<256 ; i++)
+ {
+ for (j=0 ; j<3 ; j++)
+ {
+ newpalette[i*3+j] = (host_basepal[i*3+j] + basecolor[j])/2;
+ }
+ }
+
+ VID_ShiftPalette (newpalette);
+}
+
+
+/*
+===================
+R_TransformFrustum
+===================
+*/
+void R_TransformFrustum (void)
+{
+ int i;
+ vec3_t v, v2;
+
+ for (i=0 ; i<4 ; i++)
+ {
+ v[0] = screenedge[i].normal[2];
+ v[1] = -screenedge[i].normal[0];
+ v[2] = screenedge[i].normal[1];
+
+ v2[0] = v[1]*vright[0] + v[2]*vup[0] + v[0]*vpn[0];
+ v2[1] = v[1]*vright[1] + v[2]*vup[1] + v[0]*vpn[1];
+ v2[2] = v[1]*vright[2] + v[2]*vup[2] + v[0]*vpn[2];
+
+ VectorCopy (v2, view_clipplanes[i].normal);
+
+ view_clipplanes[i].dist = DotProduct (modelorg, v2);
+ }
+}
+
+
+#if !id386
+
+/*
+================
+TransformVector
+================
+*/
+void TransformVector (vec3_t in, vec3_t out)
+{
+ out[0] = DotProduct(in,vright);
+ out[1] = DotProduct(in,vup);
+ out[2] = DotProduct(in,vpn);
+}
+
+#endif
+
+
+/*
+================
+R_TransformPlane
+================
+*/
+void R_TransformPlane (mplane_t *p, float *normal, float *dist)
+{
+ float d;
+
+ d = DotProduct (r_origin, p->normal);
+ *dist = p->dist - d;
+// TODO: when we have rotating entities, this will need to use the view matrix
+ TransformVector (p->normal, normal);
+}
+
+
+/*
+===============
+R_SetUpFrustumIndexes
+===============
+*/
+void R_SetUpFrustumIndexes (void)
+{
+ int i, j, *pindex;
+
+ pindex = r_frustum_indexes;
+
+ for (i=0 ; i<4 ; i++)
+ {
+ for (j=0 ; j<3 ; j++)
+ {
+ if (view_clipplanes[i].normal[j] < 0)
+ {
+ pindex[j] = j;
+ pindex[j+3] = j+3;
+ }
+ else
+ {
+ pindex[j] = j+3;
+ pindex[j+3] = j;
+ }
+ }
+
+ // FIXME: do just once at start
+ pfrustum_indexes[i] = pindex;
+ pindex += 6;
+ }
+}
+
+
+/*
+===============
+R_SetupFrame
+===============
+*/
+void R_SetupFrame (void)
+{
+ int edgecount;
+ vrect_t vrect;
+ float w, h;
+
+// don't allow cheats in multiplayer
+ if (cl.maxclients > 1)
+ {
+ Cvar_Set ("r_draworder", "0");
+ Cvar_Set ("r_fullbright", "0");
+ Cvar_Set ("r_ambient", "0");
+ Cvar_Set ("r_drawflat", "0");
+ }
+
+ if (r_numsurfs.value)
+ {
+ if ((surface_p - surfaces) > r_maxsurfsseen)
+ r_maxsurfsseen = surface_p - surfaces;
+
+ Con_Printf ("Used %d of %d surfs; %d max\n", surface_p - surfaces,
+ surf_max - surfaces, r_maxsurfsseen);
+ }
+
+ if (r_numedges.value)
+ {
+ edgecount = edge_p - r_edges;
+
+ if (edgecount > r_maxedgesseen)
+ r_maxedgesseen = edgecount;
+
+ Con_Printf ("Used %d of %d edges; %d max\n", edgecount,
+ r_numallocatededges, r_maxedgesseen);
+ }
+
+ r_refdef.ambientlight = r_ambient.value;
+
+ if (r_refdef.ambientlight < 0)
+ r_refdef.ambientlight = 0;
+
+ if (!sv.active)
+ r_draworder.value = 0; // don't let cheaters look behind walls
+
+ R_CheckVariables ();
+
+ R_AnimateLight ();
+
+ r_framecount++;
+
+ numbtofpolys = 0;
+
+// debugging
+#if 0
+r_refdef.vieworg[0]= 80;
+r_refdef.vieworg[1]= 64;
+r_refdef.vieworg[2]= 40;
+r_refdef.viewangles[0]= 0;
+r_refdef.viewangles[1]= 46.763641357;
+r_refdef.viewangles[2]= 0;
+#endif
+
+// build the transformation matrix for the given view angles
+ VectorCopy (r_refdef.vieworg, modelorg);
+ VectorCopy (r_refdef.vieworg, r_origin);
+
+ AngleVectors (r_refdef.viewangles, vpn, vright, vup);
+
+// current viewleaf
+ r_oldviewleaf = r_viewleaf;
+ r_viewleaf = Mod_PointInLeaf (r_origin, cl.worldmodel);
+
+ r_dowarpold = r_dowarp;
+ r_dowarp = r_waterwarp.value && (r_viewleaf->contents <= CONTENTS_WATER);
+
+ if ((r_dowarp != r_dowarpold) || r_viewchanged || lcd_x.value)
+ {
+ if (r_dowarp)
+ {
+ if ((vid.width <= vid.maxwarpwidth) &&
+ (vid.height <= vid.maxwarpheight))
+ {
+ vrect.x = 0;
+ vrect.y = 0;
+ vrect.width = vid.width;
+ vrect.height = vid.height;
+
+ R_ViewChanged (&vrect, sb_lines, vid.aspect);
+ }
+ else
+ {
+ w = vid.width;
+ h = vid.height;
+
+ if (w > vid.maxwarpwidth)
+ {
+ h *= (float)vid.maxwarpwidth / w;
+ w = vid.maxwarpwidth;
+ }
+
+ if (h > vid.maxwarpheight)
+ {
+ h = vid.maxwarpheight;
+ w *= (float)vid.maxwarpheight / h;
+ }
+
+ vrect.x = 0;
+ vrect.y = 0;
+ vrect.width = (int)w;
+ vrect.height = (int)h;
+
+ R_ViewChanged (&vrect,
+ (int)((float)sb_lines * (h/(float)vid.height)),
+ vid.aspect * (h / w) *
+ ((float)vid.width / (float)vid.height));
+ }
+ }
+ else
+ {
+ vrect.x = 0;
+ vrect.y = 0;
+ vrect.width = vid.width;
+ vrect.height = vid.height;
+
+ R_ViewChanged (&vrect, sb_lines, vid.aspect);
+ }
+
+ r_viewchanged = false;
+ }
+
+// start off with just the four screen edge clip planes
+ R_TransformFrustum ();
+
+// save base values
+ VectorCopy (vpn, base_vpn);
+ VectorCopy (vright, base_vright);
+ VectorCopy (vup, base_vup);
+ VectorCopy (modelorg, base_modelorg);
+
+ R_SetSkyFrame ();
+
+ R_SetUpFrustumIndexes ();
+
+ r_cache_thrash = false;
+
+// clear frame counts
+ c_faceclip = 0;
+ d_spanpixcount = 0;
+ r_polycount = 0;
+ r_drawnpolycount = 0;
+ r_wholepolycount = 0;
+ r_amodels_drawn = 0;
+ r_outofsurfaces = 0;
+ r_outofedges = 0;
+
+ D_SetupFrame ();
+}
+
generated by cgit v1.1 at 2026-04-24 22:22:57 +0000