mirror of https://git.code.sf.net/p/quake/newtree
273 lines
6.7 KiB
C
273 lines
6.7 KiB
C
/*
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gl_model.c
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model loading and caching
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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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$Id$
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*/
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// models are the only shared resource between a client and server running
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// on the same machine.
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#include "r_local.h"
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#include "sys.h"
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#include "console.h"
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#include "qendian.h"
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#include "checksum.h"
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#include "crc.h"
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#include "server.h"
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#include "msg.h"
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#include "cl_main.h"
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extern char loadname[];
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extern model_t *loadmodel;
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void *Mod_LoadAllSkins (int numskins, daliasskintype_t *pskintype, int *pskinindex);
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void GL_MakeAliasModelDisplayLists (model_t *m, aliashdr_t *hdr);
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/*
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==============================================================================
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ALIAS MODELS
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==============================================================================
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*/
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aliashdr_t *pheader;
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stvert_t stverts[MAXALIASVERTS];
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mtriangle_t triangles[MAXALIASTRIS];
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// a pose is a single set of vertexes. a frame may be
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// an animating sequence of poses
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trivertx_t *poseverts[MAXALIASFRAMES];
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int posenum = 0;
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void *Mod_LoadAliasFrame (void * pin, maliasframedesc_t *frame);
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void *Mod_LoadAliasGroup (void * pin, maliasframedesc_t *frame);
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//=========================================================================
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/*
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=================
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Mod_LoadAliasModel
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=================
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*/
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void Mod_LoadAliasModel (model_t *mod, void *buffer)
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{
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int i, j;
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mdl_t *pinmodel, *pmodel;
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stvert_t *pinstverts;
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dtriangle_t *pintriangles;
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int version, numframes;
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int size;
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daliasframetype_t *pframetype;
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daliasskintype_t *pskintype;
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int start, end, total;
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if (!strcmp(loadmodel->name, "progs/player.mdl") ||
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!strcmp(loadmodel->name, "progs/eyes.mdl")) {
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unsigned short crc;
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byte *p;
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int len;
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char st[40];
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CRC_Init(&crc);
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for (len = com_filesize, p = buffer; len; len--, p++)
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CRC_ProcessByte(&crc, *p);
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sprintf(st, "%d", (int) crc);
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Info_SetValueForKey (cls.userinfo,
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!strcmp(loadmodel->name, "progs/player.mdl") ? pmodel_name : emodel_name,
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st, MAX_INFO_STRING);
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if (cls.state >= ca_connected) {
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MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
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snprintf(st, sizeof(st), "setinfo %s %d",
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!strcmp(loadmodel->name, "progs/player.mdl") ? pmodel_name : emodel_name,
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(int)crc);
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SZ_Print (&cls.netchan.message, st);
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}
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}
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start = Hunk_LowMark ();
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pinmodel = (mdl_t *)buffer;
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version = LittleLong (pinmodel->version);
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if (version != ALIAS_VERSION)
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SV_Error ("%s has wrong version number (%i should be %i)",
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mod->name, version, ALIAS_VERSION);
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//
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// allocate space for a working header, plus all the data except the frames,
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// skin and group info
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//
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size = (int)&((aliashdr_t*)0)->frames[LittleLong (pinmodel->numframes)];
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pheader = Hunk_AllocName (size, loadname);
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memset(pheader, 0, size);
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pmodel = &pheader->mdl;
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pheader->model = (byte*)pmodel - (byte*)pheader;
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mod->flags = LittleLong (pinmodel->flags);
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//
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// endian-adjust and copy the data, starting with the alias model header
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//
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pmodel->boundingradius = LittleFloat (pinmodel->boundingradius);
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pmodel->numskins = LittleLong (pinmodel->numskins);
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pmodel->skinwidth = LittleLong (pinmodel->skinwidth);
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pmodel->skinheight = LittleLong (pinmodel->skinheight);
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if (pmodel->skinheight > MAX_LBM_HEIGHT)
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SV_Error ("model %s has a skin taller than %d", mod->name,
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MAX_LBM_HEIGHT);
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pmodel->numverts = LittleLong (pinmodel->numverts);
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if (pmodel->numverts <= 0)
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SV_Error ("model %s has no vertices", mod->name);
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if (pmodel->numverts > MAXALIASVERTS)
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SV_Error ("model %s has too many vertices", mod->name);
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pmodel->numtris = LittleLong (pinmodel->numtris);
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if (pmodel->numtris <= 0)
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SV_Error ("model %s has no triangles", mod->name);
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pmodel->numframes = LittleLong (pinmodel->numframes);
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numframes = pmodel->numframes;
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if (numframes < 1)
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SV_Error ("Mod_LoadAliasModel: Invalid # of frames: %d\n", numframes);
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pmodel->size = LittleFloat (pinmodel->size) * ALIAS_BASE_SIZE_RATIO;
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mod->synctype = LittleLong (pinmodel->synctype);
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mod->numframes = pmodel->numframes;
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for (i=0 ; i<3 ; i++)
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{
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pmodel->scale[i] = LittleFloat (pinmodel->scale[i]);
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pmodel->scale_origin[i] = LittleFloat (pinmodel->scale_origin[i]);
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pmodel->eyeposition[i] = LittleFloat (pinmodel->eyeposition[i]);
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}
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//
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// load the skins
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//
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pskintype = (daliasskintype_t *)&pinmodel[1];
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pskintype = Mod_LoadAllSkins (pheader->mdl.numskins, pskintype, &pheader->skindesc);
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//
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// load base s and t vertices
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//
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pinstverts = (stvert_t *)pskintype;
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for (i=0 ; i<pheader->mdl.numverts ; i++)
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{
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stverts[i].onseam = LittleLong (pinstverts[i].onseam);
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stverts[i].s = LittleLong (pinstverts[i].s);
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stverts[i].t = LittleLong (pinstverts[i].t);
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}
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//
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// load triangle lists
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//
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pintriangles = (dtriangle_t *)&pinstverts[pheader->mdl.numverts];
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for (i=0 ; i<pheader->mdl.numtris ; i++)
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{
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triangles[i].facesfront = LittleLong (pintriangles[i].facesfront);
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for (j=0 ; j<3 ; j++)
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{
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triangles[i].vertindex[j] =
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LittleLong (pintriangles[i].vertindex[j]);
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}
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}
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//
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// load the frames
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//
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posenum = 0;
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pframetype = (daliasframetype_t *)&pintriangles[pheader->mdl.numtris];
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for (i=0 ; i<numframes ; i++)
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{
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aliasframetype_t frametype;
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frametype = LittleLong (pframetype->type);
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pheader->frames[i].type = frametype;
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if (frametype == ALIAS_SINGLE)
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{
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pframetype = (daliasframetype_t *)
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Mod_LoadAliasFrame (pframetype + 1, &pheader->frames[i]);
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}
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else
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{
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pframetype = (daliasframetype_t *)
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Mod_LoadAliasGroup (pframetype + 1, &pheader->frames[i]);
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}
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}
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pheader->numposes = posenum;
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mod->type = mod_alias;
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// FIXME: do this right
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mod->mins[0] = mod->mins[1] = mod->mins[2] = -16;
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mod->maxs[0] = mod->maxs[1] = mod->maxs[2] = 16;
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//
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// build the draw lists
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//
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GL_MakeAliasModelDisplayLists (mod, pheader);
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//
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// move the complete, relocatable alias model to the cache
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//
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end = Hunk_LowMark ();
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total = end - start;
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Cache_Alloc (&mod->cache, total, loadname);
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if (!mod->cache.data)
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return;
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memcpy (mod->cache.data, pheader, total);
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Hunk_FreeToLowMark (start);
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}
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