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Diffstat (limited to 'QW/server/model.c')
| -rw-r--r-- | QW/server/model.c | 1137 |
1 files changed, 1137 insertions, 0 deletions
diff --git a/QW/server/model.c b/QW/server/model.c new file mode 100644 index 0000000..bb24c8d --- /dev/null +++ b/QW/server/model.c @@ -0,0 +1,1137 @@ +/* +Copyright (C) 1996-1997 Id Software, Inc. + +This program is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License +as published by the Free Software Foundation; either version 2 +of the License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ +// models.c -- model loading and caching + +// models are the only shared resource between a client and server running +// on the same machine. + +#include "qwsvdef.h" + +model_t *loadmodel; +char loadname[32]; // for hunk tags + +void Mod_LoadSpriteModel (model_t *mod, void *buffer); +void Mod_LoadBrushModel (model_t *mod, void *buffer); +void Mod_LoadAliasModel (model_t *mod, void *buffer); +model_t *Mod_LoadModel (model_t *mod, qboolean crash); + +byte mod_novis[MAX_MAP_LEAFS/8]; + +#define MAX_MOD_KNOWN 256 +model_t mod_known[MAX_MOD_KNOWN]; +int mod_numknown; + +texture_t r_notexture_mip; + +unsigned *model_checksum; + +/* +=============== +Mod_Init +=============== +*/ +void Mod_Init (void) +{ + memset (mod_novis, 0xff, sizeof(mod_novis)); +} + +/* +=============== +Mod_PointInLeaf +=============== +*/ +mleaf_t *Mod_PointInLeaf (vec3_t p, model_t *model) +{ + mnode_t *node; + float d; + mplane_t *plane; + + if (!model || !model->nodes) + SV_Error ("Mod_PointInLeaf: bad model"); + + node = model->nodes; + while (1) + { + if (node->contents < 0) + return (mleaf_t *)node; + plane = node->plane; + d = DotProduct (p,plane->normal) - plane->dist; + if (d > 0) + node = node->children[0]; + else + node = node->children[1]; + } + + return NULL; // never reached +} + + +/* +=================== +Mod_DecompressVis +=================== +*/ +byte *Mod_DecompressVis (byte *in, model_t *model) +{ + static byte decompressed[MAX_MAP_LEAFS/8]; + int c; + byte *out; + int row; + + row = (model->numleafs+7)>>3; + out = decompressed; + +#if 0 + memcpy (out, in, row); +#else + if (!in) + { // no vis info, so make all visible + while (row) + { + *out++ = 0xff; + row--; + } + return decompressed; + } + + do + { + if (*in) + { + *out++ = *in++; + continue; + } + + c = in[1]; + in += 2; + while (c) + { + *out++ = 0; + c--; + } + } while (out - decompressed < row); +#endif + + return decompressed; +} + +byte *Mod_LeafPVS (mleaf_t *leaf, model_t *model) +{ + if (leaf == model->leafs) + return mod_novis; + return Mod_DecompressVis (leaf->compressed_vis, model); +} + +/* +=================== +Mod_ClearAll +=================== +*/ +void Mod_ClearAll (void) +{ + int i; + model_t *mod; + + for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++) + if (mod->type != mod_alias) + mod->needload = true; +} + +/* +================== +Mod_FindName + +================== +*/ +model_t *Mod_FindName (char *name) +{ + int i; + model_t *mod; + + if (!name[0]) + SV_Error ("Mod_ForName: NULL name"); + +// +// search the currently loaded models +// + for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++) + if (!strcmp (mod->name, name) ) + break; + + if (i == mod_numknown) + { + if (mod_numknown == MAX_MOD_KNOWN) + SV_Error ("mod_numknown == MAX_MOD_KNOWN"); + strcpy (mod->name, name); + mod->needload = true; + mod_numknown++; + } + + return mod; +} + + +/* +================== +Mod_LoadModel + +Loads a model into the cache +================== +*/ +model_t *Mod_LoadModel (model_t *mod, qboolean crash) +{ + void *d; + unsigned *buf; + byte stackbuf[1024]; // avoid dirtying the cache heap + + if (!mod->needload) + { + if (mod->type == mod_alias) + { + d = Cache_Check (&mod->cache); + if (d) + return mod; + } + else + return mod; // not cached at all + } + +// +// load the file +// + buf = (unsigned *)COM_LoadStackFile (mod->name, stackbuf, sizeof(stackbuf)); + if (!buf) + { + if (crash) + SV_Error ("Mod_NumForName: %s not found", mod->name); + return NULL; + } + +// +// allocate a new model +// + COM_FileBase (mod->name, loadname); + + loadmodel = mod; + +// +// fill it in +// + +// call the apropriate loader + mod->needload = false; + + Mod_LoadBrushModel (mod, buf); + + return mod; +} + +/* +================== +Mod_ForName + +Loads in a model for the given name +================== +*/ +model_t *Mod_ForName (char *name, qboolean crash) +{ + model_t *mod; + + mod = Mod_FindName (name); + + return Mod_LoadModel (mod, crash); +} + + +/* +=============================================================================== + + BRUSHMODEL LOADING + +=============================================================================== +*/ + +byte *mod_base; + + +/* +================= +Mod_LoadTextures +================= +*/ +void Mod_LoadTextures (lump_t *l) +{ + int i, j, pixels, num, max, altmax; + miptex_t *mt; + texture_t *tx, *tx2; + texture_t *anims[10]; + texture_t *altanims[10]; + dmiptexlump_t *m; + + if (!l->filelen) + { + loadmodel->textures = NULL; + return; + } + m = (dmiptexlump_t *)(mod_base + l->fileofs); + + m->nummiptex = LittleLong (m->nummiptex); + + loadmodel->numtextures = m->nummiptex; + loadmodel->textures = Hunk_AllocName (m->nummiptex * sizeof(*loadmodel->textures) , loadname); + + for (i=0 ; i<m->nummiptex ; i++) + { + m->dataofs[i] = LittleLong(m->dataofs[i]); + if (m->dataofs[i] == -1) + continue; + mt = (miptex_t *)((byte *)m + m->dataofs[i]); + mt->width = LittleLong (mt->width); + mt->height = LittleLong (mt->height); + for (j=0 ; j<MIPLEVELS ; j++) + mt->offsets[j] = LittleLong (mt->offsets[j]); + + if ( (mt->width & 15) || (mt->height & 15) ) + SV_Error ("Texture %s is not 16 aligned", mt->name); + pixels = mt->width*mt->height/64*85; + tx = Hunk_AllocName (sizeof(texture_t) +pixels, loadname ); + loadmodel->textures[i] = tx; + + memcpy (tx->name, mt->name, sizeof(tx->name)); + tx->width = mt->width; + tx->height = mt->height; + for (j=0 ; j<MIPLEVELS ; j++) + tx->offsets[j] = mt->offsets[j] + sizeof(texture_t) - sizeof(miptex_t); + // the pixels immediately follow the structures + memcpy ( tx+1, mt+1, pixels); + } + +// +// sequence the animations +// + for (i=0 ; i<m->nummiptex ; i++) + { + tx = loadmodel->textures[i]; + if (!tx || tx->name[0] != '+') + continue; + if (tx->anim_next) + continue; // allready sequenced + + // find the number of frames in the animation + memset (anims, 0, sizeof(anims)); + memset (altanims, 0, sizeof(altanims)); + + max = tx->name[1]; + altmax = 0; + if (max >= 'a' && max <= 'z') + max -= 'a' - 'A'; + if (max >= '0' && max <= '9') + { + max -= '0'; + altmax = 0; + anims[max] = tx; + max++; + } + else if (max >= 'A' && max <= 'J') + { + altmax = max - 'A'; + max = 0; + altanims[altmax] = tx; + altmax++; + } + else + SV_Error ("Bad animating texture %s", tx->name); + + for (j=i+1 ; j<m->nummiptex ; j++) + { + tx2 = loadmodel->textures[j]; + if (!tx2 || tx2->name[0] != '+') + continue; + if (strcmp (tx2->name+2, tx->name+2)) + continue; + + num = tx2->name[1]; + if (num >= 'a' && num <= 'z') + num -= 'a' - 'A'; + if (num >= '0' && num <= '9') + { + num -= '0'; + anims[num] = tx2; + if (num+1 > max) + max = num + 1; + } + else if (num >= 'A' && num <= 'J') + { + num = num - 'A'; + altanims[num] = tx2; + if (num+1 > altmax) + altmax = num+1; + } + else + SV_Error ("Bad animating texture %s", tx->name); + } + +#define ANIM_CYCLE 2 + // link them all together + for (j=0 ; j<max ; j++) + { + tx2 = anims[j]; + if (!tx2) + SV_Error ("Missing frame %i of %s",j, tx->name); + tx2->anim_total = max * ANIM_CYCLE; + tx2->anim_min = j * ANIM_CYCLE; + tx2->anim_max = (j+1) * ANIM_CYCLE; + tx2->anim_next = anims[ (j+1)%max ]; + if (altmax) + tx2->alternate_anims = altanims[0]; + } + for (j=0 ; j<altmax ; j++) + { + tx2 = altanims[j]; + if (!tx2) + SV_Error ("Missing frame %i of %s",j, tx->name); + tx2->anim_total = altmax * ANIM_CYCLE; + tx2->anim_min = j * ANIM_CYCLE; + tx2->anim_max = (j+1) * ANIM_CYCLE; + tx2->anim_next = altanims[ (j+1)%altmax ]; + if (max) + tx2->alternate_anims = anims[0]; + } + } +} + +/* +================= +Mod_LoadLighting +================= +*/ +void Mod_LoadLighting (lump_t *l) +{ + if (!l->filelen) + { + loadmodel->lightdata = NULL; + return; + } + loadmodel->lightdata = Hunk_AllocName ( l->filelen, loadname); + memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen); +} + + +/* +================= +Mod_LoadVisibility +================= +*/ +void Mod_LoadVisibility (lump_t *l) +{ + if (!l->filelen) + { + loadmodel->visdata = NULL; + return; + } + loadmodel->visdata = Hunk_AllocName ( l->filelen, loadname); + memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen); +} + + +/* +================= +Mod_LoadEntities +================= +*/ +void Mod_LoadEntities (lump_t *l) +{ + if (!l->filelen) + { + loadmodel->entities = NULL; + return; + } + loadmodel->entities = Hunk_AllocName ( l->filelen, loadname); + memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen); +} + + +/* +================= +Mod_LoadVertexes +================= +*/ +void Mod_LoadVertexes (lump_t *l) +{ + dvertex_t *in; + mvertex_t *out; + int i, count; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->vertexes = out; + loadmodel->numvertexes = count; + + for ( i=0 ; i<count ; i++, in++, out++) + { + out->position[0] = LittleFloat (in->point[0]); + out->position[1] = LittleFloat (in->point[1]); + out->position[2] = LittleFloat (in->point[2]); + } +} + +/* +================= +Mod_LoadSubmodels +================= +*/ +void Mod_LoadSubmodels (lump_t *l) +{ + dmodel_t *in; + dmodel_t *out; + int i, j, count; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->submodels = out; + loadmodel->numsubmodels = count; + + for ( i=0 ; i<count ; i++, in++, out++) + { + for (j=0 ; j<3 ; j++) + { // spread the mins / maxs by a pixel + out->mins[j] = LittleFloat (in->mins[j]) - 1; + out->maxs[j] = LittleFloat (in->maxs[j]) + 1; + out->origin[j] = LittleFloat (in->origin[j]); + } + for (j=0 ; j<MAX_MAP_HULLS ; j++) + out->headnode[j] = LittleLong (in->headnode[j]); + out->visleafs = LittleLong (in->visleafs); + out->firstface = LittleLong (in->firstface); + out->numfaces = LittleLong (in->numfaces); + } +} + +/* +================= +Mod_LoadEdges +================= +*/ +void Mod_LoadEdges (lump_t *l) +{ + dedge_t *in; + medge_t *out; + int i, count; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( (count + 1) * sizeof(*out), loadname); + + loadmodel->edges = out; + loadmodel->numedges = count; + + for ( i=0 ; i<count ; i++, in++, out++) + { + out->v[0] = (unsigned short)LittleShort(in->v[0]); + out->v[1] = (unsigned short)LittleShort(in->v[1]); + } +} + +/* +================= +Mod_LoadTexinfo +================= +*/ +void Mod_LoadTexinfo (lump_t *l) +{ + texinfo_t *in; + mtexinfo_t *out; + int i, j, count; + int miptex; + float len1, len2; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->texinfo = out; + loadmodel->numtexinfo = count; + + for ( i=0 ; i<count ; i++, in++, out++) + { +#if 0 + for (j=0 ; j<8 ; j++) + out->vecs[0][j] = LittleFloat (in->vecs[0][j]); + len1 = Length (in->vecs[0]); + len2 = Length (in->vecs[1]); +#else + for (j=0 ; j<4 ; j++) { + out->vecs[0][j] = LittleFloat (in->vecs[0][j]); + out->vecs[1][j] = LittleFloat (in->vecs[1][j]); + } + len1 = Length (out->vecs[0]); + len2 = Length (out->vecs[1]); +#endif + if (len1 + len2 < 2 /*0.001*/) + out->mipadjust = 1; + else + out->mipadjust = 1 / floor( (len1+len2)/2 ); + + miptex = LittleLong (in->miptex); + out->flags = LittleLong (in->flags); + + if (!loadmodel->textures) + { + out->texture = &r_notexture_mip; // checkerboard texture + out->flags = 0; + } + else + { + if (miptex >= loadmodel->numtextures) + SV_Error ("miptex >= loadmodel->numtextures"); + out->texture = loadmodel->textures[miptex]; + if (!out->texture) + { + out->texture = &r_notexture_mip; // texture not found + out->flags = 0; + } + } + } +} + +/* +================ +CalcSurfaceExtents + +Fills in s->texturemins[] and s->extents[] +================ +*/ +void CalcSurfaceExtents (msurface_t *s) +{ + float mins[2], maxs[2], val; + int i,j, e; + mvertex_t *v; + mtexinfo_t *tex; + int bmins[2], bmaxs[2]; + + mins[0] = mins[1] = 999999; + maxs[0] = maxs[1] = -99999; + + tex = s->texinfo; + + for (i=0 ; i<s->numedges ; i++) + { + e = loadmodel->surfedges[s->firstedge+i]; + if (e >= 0) + v = &loadmodel->vertexes[loadmodel->edges[e].v[0]]; + else + v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]]; + + for (j=0 ; j<2 ; j++) + { + val = v->position[0] * tex->vecs[j][0] + + v->position[1] * tex->vecs[j][1] + + v->position[2] * tex->vecs[j][2] + + tex->vecs[j][3]; + if (val < mins[j]) + mins[j] = val; + if (val > maxs[j]) + maxs[j] = val; + } + } + + for (i=0 ; i<2 ; i++) + { + bmins[i] = floor(mins[i]/16); + bmaxs[i] = ceil(maxs[i]/16); + + s->texturemins[i] = bmins[i] * 16; + s->extents[i] = (bmaxs[i] - bmins[i]) * 16; + if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 256) + SV_Error ("Bad surface extents"); + } +} + + +/* +================= +Mod_LoadFaces +================= +*/ +void Mod_LoadFaces (lump_t *l) +{ + dface_t *in; + msurface_t *out; + int i, count, surfnum; + int planenum, side; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->surfaces = out; + loadmodel->numsurfaces = count; + + for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++) + { + out->firstedge = LittleLong(in->firstedge); + out->numedges = LittleShort(in->numedges); + out->flags = 0; + + planenum = LittleShort(in->planenum); + side = LittleShort(in->side); + if (side) + out->flags |= SURF_PLANEBACK; + + out->plane = loadmodel->planes + planenum; + + out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo); + + CalcSurfaceExtents (out); + + // lighting info + + for (i=0 ; i<MAXLIGHTMAPS ; i++) + out->styles[i] = in->styles[i]; + i = LittleLong(in->lightofs); + if (i == -1) + out->samples = NULL; + else + out->samples = loadmodel->lightdata + i; + + // set the drawing flags flag + + if (!Q_strncmp(out->texinfo->texture->name,"sky",3)) // sky + { + out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED); + continue; + } + + if (!Q_strncmp(out->texinfo->texture->name,"*",1)) // turbulent + { + out->flags |= (SURF_DRAWTURB | SURF_DRAWTILED); + for (i=0 ; i<2 ; i++) + { + out->extents[i] = 16384; + out->texturemins[i] = -8192; + } + continue; + } + } +} + + +/* +================= +Mod_SetParent +================= +*/ +void Mod_SetParent (mnode_t *node, mnode_t *parent) +{ + node->parent = parent; + if (node->contents < 0) + return; + Mod_SetParent (node->children[0], node); + Mod_SetParent (node->children[1], node); +} + +/* +================= +Mod_LoadNodes +================= +*/ +void Mod_LoadNodes (lump_t *l) +{ + int i, j, count, p; + dnode_t *in; + mnode_t *out; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->nodes = out; + loadmodel->numnodes = count; + + for ( i=0 ; i<count ; i++, in++, out++) + { + for (j=0 ; j<3 ; j++) + { + out->minmaxs[j] = LittleShort (in->mins[j]); + out->minmaxs[3+j] = LittleShort (in->maxs[j]); + } + + p = LittleLong(in->planenum); + out->plane = loadmodel->planes + p; + + out->firstsurface = LittleShort (in->firstface); + out->numsurfaces = LittleShort (in->numfaces); + + for (j=0 ; j<2 ; j++) + { + p = LittleShort (in->children[j]); + if (p >= 0) + out->children[j] = loadmodel->nodes + p; + else + out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p)); + } + } + + Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs +} + +/* +================= +Mod_LoadLeafs +================= +*/ +void Mod_LoadLeafs (lump_t *l) +{ + dleaf_t *in; + mleaf_t *out; + int i, j, count, p; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->leafs = out; + loadmodel->numleafs = count; + + for ( i=0 ; i<count ; i++, in++, out++) + { + for (j=0 ; j<3 ; j++) + { + out->minmaxs[j] = LittleShort (in->mins[j]); + out->minmaxs[3+j] = LittleShort (in->maxs[j]); + } + + p = LittleLong(in->contents); + out->contents = p; + + out->firstmarksurface = loadmodel->marksurfaces + + LittleShort(in->firstmarksurface); + out->nummarksurfaces = LittleShort(in->nummarksurfaces); + + p = LittleLong(in->visofs); + if (p == -1) + out->compressed_vis = NULL; + else + out->compressed_vis = loadmodel->visdata + p; + out->efrags = NULL; + + for (j=0 ; j<4 ; j++) + out->ambient_sound_level[j] = in->ambient_level[j]; + } +} + +/* +================= +Mod_LoadClipnodes +================= +*/ +void Mod_LoadClipnodes (lump_t *l) +{ + dclipnode_t *in, *out; + int i, count; + hull_t *hull; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->clipnodes = out; + loadmodel->numclipnodes = count; + + hull = &loadmodel->hulls[1]; + hull->clipnodes = out; + hull->firstclipnode = 0; + hull->lastclipnode = count-1; + hull->planes = loadmodel->planes; + hull->clip_mins[0] = -16; + hull->clip_mins[1] = -16; + hull->clip_mins[2] = -24; + hull->clip_maxs[0] = 16; + hull->clip_maxs[1] = 16; + hull->clip_maxs[2] = 32; + + hull = &loadmodel->hulls[2]; + hull->clipnodes = out; + hull->firstclipnode = 0; + hull->lastclipnode = count-1; + hull->planes = loadmodel->planes; + hull->clip_mins[0] = -32; + hull->clip_mins[1] = -32; + hull->clip_mins[2] = -24; + hull->clip_maxs[0] = 32; + hull->clip_maxs[1] = 32; + hull->clip_maxs[2] = 64; + + for (i=0 ; i<count ; i++, out++, in++) + { + out->planenum = LittleLong(in->planenum); + out->children[0] = LittleShort(in->children[0]); + out->children[1] = LittleShort(in->children[1]); + } +} + +/* +================= +Mod_MakeHull0 + +Deplicate the drawing hull structure as a clipping hull +================= +*/ +void Mod_MakeHull0 (void) +{ + mnode_t *in, *child; + dclipnode_t *out; + int i, j, count; + hull_t *hull; + + hull = &loadmodel->hulls[0]; + + in = loadmodel->nodes; + count = loadmodel->numnodes; + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + hull->clipnodes = out; + hull->firstclipnode = 0; + hull->lastclipnode = count-1; + hull->planes = loadmodel->planes; + + for (i=0 ; i<count ; i++, out++, in++) + { + out->planenum = in->plane - loadmodel->planes; + for (j=0 ; j<2 ; j++) + { + child = in->children[j]; + if (child->contents < 0) + out->children[j] = child->contents; + else + out->children[j] = child - loadmodel->nodes; + } + } +} + +/* +================= +Mod_LoadMarksurfaces +================= +*/ +void Mod_LoadMarksurfaces (lump_t *l) +{ + int i, j, count; + short *in; + msurface_t **out; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->marksurfaces = out; + loadmodel->nummarksurfaces = count; + + for ( i=0 ; i<count ; i++) + { + j = LittleShort(in[i]); + if (j >= loadmodel->numsurfaces) + SV_Error ("Mod_ParseMarksurfaces: bad surface number"); + out[i] = loadmodel->surfaces + j; + } +} + +/* +================= +Mod_LoadSurfedges +================= +*/ +void Mod_LoadSurfedges (lump_t *l) +{ + int i, count; + int *in, *out; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*sizeof(*out), loadname); + + loadmodel->surfedges = out; + loadmodel->numsurfedges = count; + + for ( i=0 ; i<count ; i++) + out[i] = LittleLong (in[i]); +} + +/* +================= +Mod_LoadPlanes +================= +*/ +void Mod_LoadPlanes (lump_t *l) +{ + int i, j; + mplane_t *out; + dplane_t *in; + int count; + int bits; + + in = (void *)(mod_base + l->fileofs); + if (l->filelen % sizeof(*in)) + SV_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); + count = l->filelen / sizeof(*in); + out = Hunk_AllocName ( count*2*sizeof(*out), loadname); + + loadmodel->planes = out; + loadmodel->numplanes = count; + + for ( i=0 ; i<count ; i++, in++, out++) + { + bits = 0; + for (j=0 ; j<3 ; j++) + { + out->normal[j] = LittleFloat (in->normal[j]); + if (out->normal[j] < 0) + bits |= 1<<j; + } + + out->dist = LittleFloat (in->dist); + out->type = LittleLong (in->type); + out->signbits = bits; + } +} + + +/* +================= +Mod_LoadBrushModel +================= +*/ +void Mod_LoadBrushModel (model_t *mod, void *buffer) +{ + int i, j; + dheader_t *header; + dmodel_t *bm; + + loadmodel->type = mod_brush; + + header = (dheader_t *)buffer; + + i = LittleLong (header->version); + if (i != BSPVERSION) + SV_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i)", mod->name, i, BSPVERSION); + +// swap all the lumps + mod_base = (byte *)header; + + for (i=0 ; i<sizeof(dheader_t)/4 ; i++) + ((int *)header)[i] = LittleLong ( ((int *)header)[i]); + +// load into heap + + mod->checksum = 0; + mod->checksum2 = 0; + + // checksum all of the map, except for entities + for (i = 0; i < HEADER_LUMPS; i++) { + if (i == LUMP_ENTITIES) + continue; + mod->checksum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, + header->lumps[i].filelen)); + + if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES) + continue; + mod->checksum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, + header->lumps[i].filelen)); + } + + Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]); + Mod_LoadEdges (&header->lumps[LUMP_EDGES]); + Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]); + Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]); + Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]); + Mod_LoadPlanes (&header->lumps[LUMP_PLANES]); + Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]); + Mod_LoadFaces (&header->lumps[LUMP_FACES]); + Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES]); + Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]); + Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]); + Mod_LoadNodes (&header->lumps[LUMP_NODES]); + Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES]); + Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]); + Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]); + + Mod_MakeHull0 (); + + mod->numframes = 2; // regular and alternate animation + +// +// set up the submodels (FIXME: this is confusing) +// + for (i=0 ; i<mod->numsubmodels ; i++) + { + bm = &mod->submodels[i]; + + mod->hulls[0].firstclipnode = bm->headnode[0]; + for (j=1 ; j<MAX_MAP_HULLS ; j++) + { + mod->hulls[j].firstclipnode = bm->headnode[j]; + mod->hulls[j].lastclipnode = mod->numclipnodes-1; + } + + mod->firstmodelsurface = bm->firstface; + mod->nummodelsurfaces = bm->numfaces; + + VectorCopy (bm->maxs, mod->maxs); + VectorCopy (bm->mins, mod->mins); + + mod->numleafs = bm->visleafs; + + if (i < mod->numsubmodels-1) + { // duplicate the basic information + char name[10]; + + sprintf (name, "*%i", i+1); + loadmodel = Mod_FindName (name); + *loadmodel = *mod; + strcpy (loadmodel->name, name); + mod = loadmodel; + } + } +} + |