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