mirror of
https://git.code.sf.net/p/quake/quakeforge
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6f18035c12
After getting in contact with serplord, I now know that the sw alias loading was correct. Turns out the gl loaders was mostly correct, just a mistaken subtract rather than add. And with that, I can implement alias-16 support in glsl. better yet, since all the work is done in the loader, the renderer doesn't know anything about it :) However, I need to create some 16-bit models for testing.
139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/*
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sw_model_alias.c
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alias model loading and caching for the software renderer
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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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// 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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static __attribute__ ((used)) const char rcsid[] =
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"$Id$";
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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 "QF/model.h"
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#include "QF/qendian.h"
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#include "QF/sys.h"
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#include "compat.h"
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#include "d_iface.h"
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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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void *
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Mod_LoadSkin (byte *skin, int skinsize, int snum, int gnum,
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qboolean group, maliasskindesc_t *skindesc)
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{
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byte *pskin;
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pskin = Hunk_AllocName (skinsize, loadname);
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skindesc->skin = (byte *) pskin - (byte *) pheader;
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memcpy (pskin, skin, skinsize);
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return skin + skinsize;
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}
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static void
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process_frame (maliasframedesc_t *frame, int posenum, int extra)
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{
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int size = pheader->mdl.numverts * sizeof (trivertx_t);
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trivertx_t *frame_verts;
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if (extra)
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size *= 2;
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frame_verts = Hunk_AllocName (size, loadname);
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frame->frame = (byte *) frame_verts - (byte *) pheader;
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// The low-order 8 bits (actually, fractional) are completely separate
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// from the high-order bits (see R_AliasTransformFinalVert16 in
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// sw_ralias.c), but in adjacant arrays. This means we can get away with
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// just one memcpy as there are non endian issues.
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memcpy (frame_verts, poseverts[posenum], size);
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}
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void
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Mod_MakeAliasModelDisplayLists (model_t *m, aliashdr_t *hdr, void *_m, int _s,
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int extra)
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{
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int i, j;
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int posenum = 0;
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int numv = hdr->mdl.numverts, numt = hdr->mdl.numtris;
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stvert_t *pstverts;
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mtriangle_t *ptri;
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pstverts = (stvert_t *) Hunk_AllocName (numv * sizeof (stvert_t),
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loadname);
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ptri = (mtriangle_t *) Hunk_AllocName (numt * sizeof (mtriangle_t),
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loadname);
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hdr->stverts = (byte *) pstverts - (byte *) hdr;
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hdr->triangles = (byte *) ptri - (byte *) hdr;
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for (i = 0; i < numv; i++) {
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pstverts[i].onseam = stverts[i].onseam;
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pstverts[i].s = stverts[i].s << 16;
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pstverts[i].t = stverts[i].t << 16;
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}
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for (i = 0; i < numt; i++) {
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ptri[i].facesfront = triangles[i].facesfront;
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VectorCopy (triangles[i].vertindex, ptri[i].vertindex);
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}
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for (i = 0; i < pheader->mdl.numframes; i++) {
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maliasframedesc_t *frame = pheader->frames + i;
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if (frame->type) {
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maliasgroup_t *group;
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group = (maliasgroup_t *) ((byte *) pheader + frame->frame);
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for (j = 0; j < group->numframes; j++)
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process_frame ((maliasframedesc_t *) &group->frames[j],
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posenum++, extra);
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} else {
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process_frame (frame, posenum++, extra);
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}
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}
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}
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void
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Mod_FinalizeAliasModel (model_t *m, aliashdr_t *hdr)
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{
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}
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void
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Mod_LoadExternalSkins (model_t *mod)
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{
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}
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