322 lines
6.8 KiB
C
322 lines
6.8 KiB
C
/*
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sw32_rmisc.c
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(description)
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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:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#define NH_DEFINE
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#include "namehack.h"
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#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/draw.h"
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#include "QF/render.h"
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#include "QF/sys.h"
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#include "compat.h"
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#include "r_internal.h"
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#include "vid_internal.h"
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static void
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R_CheckVariables (void)
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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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void
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sw32_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_DoubleTime ();
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for (i = 0; i < 128; i++) {
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r_refdef.viewangles[1] = i / 128.0 * 360.0;
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VID_LockBuffer ();
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sw32_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.next = NULL;
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VID_Update (&vr);
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}
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stop = Sys_DoubleTime ();
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time = stop - start;
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Sys_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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void
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sw32_R_LoadSky_f (void)
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{
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if (Cmd_Argc () != 2) {
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Sys_Printf ("loadsky <name> : load a skybox\n");
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return;
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}
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sw32_R_LoadSkys (Cmd_Argv (1));
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}
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void
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sw32_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_DoubleTime ();
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ms = 1000 * (r_time2 - r_time1);
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Sys_Printf ("%5.1f ms %3i/%3i/%3i poly %3i surf\n",
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ms, sw32_c_faceclip, sw32_r_polycount, sw32_r_drawnpolycount, sw32_c_surf);
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sw32_c_surf = 0;
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}
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void
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sw32_R_PrintAliasStats (void)
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{
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Sys_Printf ("%3i polygon model drawn\n", sw32_r_amodels_drawn);
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}
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void
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sw32_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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v[0] = sw32_screenedge[i].normal[2];
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v[1] = -sw32_screenedge[i].normal[0];
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v[2] = sw32_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, sw32_view_clipplanes[i].normal);
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sw32_view_clipplanes[i].dist = DotProduct (modelorg, v2);
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}
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}
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void
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sw32_TransformVector (const 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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void
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sw32_R_TransformPlane (plane_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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sw32_TransformVector (p->normal, normal);
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}
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static void
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R_SetUpFrustumIndexes (void)
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{
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int i, j, *pindex;
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pindex = sw32_r_frustum_indexes;
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 3; j++) {
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if (sw32_view_clipplanes[i].normal[j] < 0) {
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pindex[j] = j;
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pindex[j + 3] = j + 3;
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} else {
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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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sw32_pfrustum_indexes[i] = pindex;
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pindex += 6;
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}
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}
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void
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sw32_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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Cvar_SetValue (r_ambient, 0);
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Cvar_SetValue (r_drawflat, 0);
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if (r_numsurfs->int_val) {
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if ((sw32_surface_p - sw32_surfaces) > sw32_r_maxsurfsseen)
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sw32_r_maxsurfsseen = sw32_surface_p - sw32_surfaces;
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Sys_Printf ("Used %ld of %ld surfs; %d max\n",
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(long) (sw32_surface_p - sw32_surfaces),
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(long) (sw32_surf_max - sw32_surfaces), sw32_r_maxsurfsseen);
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}
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if (r_numedges->int_val) {
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edgecount = sw32_edge_p - sw32_r_edges;
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if (edgecount > sw32_r_maxedgesseen)
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sw32_r_maxedgesseen = edgecount;
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Sys_Printf ("Used %d of %d edges; %d max\n", edgecount,
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sw32_r_numallocatededges, sw32_r_maxedgesseen);
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}
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r_refdef.ambientlight = max (r_ambient->value, 0);
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R_CheckVariables ();
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R_AnimateLight ();
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R_ClearEnts ();
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r_framecount++;
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sw32_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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R_SetFrustum ();
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// current viewleaf
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r_viewleaf = Mod_PointInLeaf (r_origin, r_worldentity.model);
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sw32_r_dowarpold = sw32_r_dowarp;
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sw32_r_dowarp = r_waterwarp->int_val && (r_viewleaf->contents <=
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CONTENTS_WATER);
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if ((sw32_r_dowarp != sw32_r_dowarpold) || sw32_r_viewchanged) {
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if (sw32_r_dowarp) {
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if ((vid.width <= vid.maxwarpwidth)
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&& (vid.height <= vid.maxwarpheight)) {
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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_SetVrect (&vrect, &r_refdef.vrect, vr_data.lineadj);
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sw32_R_ViewChanged (vid.aspect);
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} else {
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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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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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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_SetVrect (&vrect, &r_refdef.vrect,
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(int) ((float) vr_data.lineadj *
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(h / (float) vid.height)));
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sw32_R_ViewChanged (vid.aspect * (h / w) * ((float) vid.width /
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(float) vid.height));
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}
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} else {
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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_refdef.vrect = scr_vrect;
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sw32_R_ViewChanged (vid.aspect);
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}
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sw32_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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sw32_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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sw32_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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sw32_c_faceclip = 0;
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sw32_r_polycount = 0;
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sw32_r_drawnpolycount = 0;
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sw32_r_amodels_drawn = 0;
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sw32_r_outofsurfaces = 0;
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sw32_r_outofedges = 0;
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sw32_D_SetupFrame ();
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}
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