mirror of
https://git.code.sf.net/p/quake/quakeforge
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b011f91018
The improved allocation overheads have been implemented for gl and sw, and glsl no longer uses malloc. Using array textures will have to wait as the current texture loading code doesn't support them.
133 lines
3.9 KiB
C
133 lines
3.9 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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#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/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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#include "mod_internal.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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sw_Mod_LoadAllSkins (mod_alias_ctx_t *alias_ctx)
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{
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aliashdr_t *header = alias_ctx->header;
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int skinsize = header->mdl.skinwidth * header->mdl.skinheight;
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int num_skins = alias_ctx->skins.size;
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byte *texel_block = Hunk_AllocName (0, skinsize * num_skins,
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alias_ctx->mod->name);
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for (size_t i = 0; i < alias_ctx->skins.size; i++) {
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__auto_type skin = alias_ctx->skins.a + i;
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byte *texels = texel_block + i * skinsize;
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skin->skindesc->skin = texels - (byte *) header;
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memcpy (texels, skin->texels, skinsize);
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}
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}
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static void
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process_frame (mod_alias_ctx_t *alias_ctx, maliasframedesc_t *frame,
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int posenum, int extra)
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{
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aliashdr_t *header = alias_ctx->header;
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int size = header->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 (0, size, alias_ctx->mod->name);
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frame->frame = (byte *) frame_verts - (byte *) header;
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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 no endian issues.
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memcpy (frame_verts, alias_ctx->poseverts.a[posenum], size);
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}
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void
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sw_Mod_MakeAliasModelDisplayLists (mod_alias_ctx_t *alias_ctx, void *_m,
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int _s, int extra)
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{
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aliashdr_t *header = alias_ctx->header;
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int i, j;
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int posenum = 0;
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int numv = header->mdl.numverts, numt = header->mdl.numtris;
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stvert_t *stverts;
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mtriangle_t *tris;
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stverts = (stvert_t *) Hunk_AllocName (0, numv * sizeof (stvert_t),
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alias_ctx->mod->name);
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tris = (mtriangle_t *) Hunk_AllocName (0, numt * sizeof (mtriangle_t),
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alias_ctx->mod->name);
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header->stverts = (byte *) stverts - (byte *) header;
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header->triangles = (byte *) tris - (byte *) header;
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for (i = 0; i < numv; i++) {
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stverts[i].onseam = alias_ctx->stverts.a[i].onseam;
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stverts[i].s = alias_ctx->stverts.a[i].s << 16;
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stverts[i].t = alias_ctx->stverts.a[i].t << 16;
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}
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for (i = 0; i < numt; i++) {
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tris[i].facesfront = alias_ctx->triangles.a[i].facesfront;
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VectorCopy (alias_ctx->triangles.a[i].vertindex, tris[i].vertindex);
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}
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for (i = 0; i < header->mdl.numframes; i++) {
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maliasframedesc_t *frame = header->frames + i;
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if (frame->type) {
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maliasgroup_t *group;
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group = (maliasgroup_t *) ((byte *) header + frame->frame);
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for (j = 0; j < group->numframes; j++) {
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__auto_type frame = (maliasframedesc_t *) &group->frames[j];
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process_frame (alias_ctx, frame, posenum++, extra);
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}
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} else {
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process_frame (alias_ctx, frame, posenum++, extra);
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}
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}
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}
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