| 5 |
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* Routines for reading a compiled mesh from a file |
| 6 |
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*/ |
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|
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#include <time.h> |
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|
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#include "platform.h" |
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#include "standard.h" |
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#include "octree.h" |
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#include "object.h" |
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#include "mesh.h" |
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+ |
#include "resolu.h" |
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|
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static char *meshfn; /* input file name */ |
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static FILE *meshfp; /* mesh file pointer */ |
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mgetint(siz) /* get a siz-byte integer */ |
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int siz; |
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{ |
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< |
register long r; |
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> |
long r; |
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|
| 40 |
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r = getint(siz, meshfp); |
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if (feof(meshfp)) |
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getfullnode() /* get a set, return fullnode */ |
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{ |
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OBJECT set[MAXSET+1]; |
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< |
register int i; |
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> |
int i; |
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|
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if ((set[0] = mgetint(objsize)) > MAXSET) |
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mesherror(USER, "bad set in getfullnode"); |
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static OCTREE |
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gettree() /* get a pre-ordered octree */ |
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{ |
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< |
register OCTREE ot; |
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< |
register int i; |
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> |
OCTREE ot; |
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> |
int i; |
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|
| 79 |
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switch (getc(meshfp)) { |
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< |
case OT_EMPTY: |
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< |
return(EMPTY); |
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< |
case OT_FULL: |
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< |
return(getfullnode()); |
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< |
case OT_TREE: |
| 85 |
< |
if ((ot = octalloc()) == EMPTY) |
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< |
mesherror(SYSTEM, "out of tree space in readmesh"); |
| 87 |
< |
for (i = 0; i < 8; i++) |
| 88 |
< |
octkid(ot, i) = gettree(); |
| 89 |
< |
return(ot); |
| 90 |
< |
case EOF: |
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< |
mesherror(USER, "truncated mesh octree"); |
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< |
default: |
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< |
mesherror(USER, "damaged mesh octree"); |
| 80 |
> |
case OT_EMPTY: |
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> |
return(EMPTY); |
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> |
case OT_FULL: |
| 83 |
> |
return(getfullnode()); |
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> |
case OT_TREE: |
| 85 |
> |
if ((ot = octalloc()) == EMPTY) |
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> |
mesherror(SYSTEM, "out of tree space in readmesh"); |
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> |
for (i = 0; i < 8; i++) |
| 88 |
> |
octkid(ot, i) = gettree(); |
| 89 |
> |
return(ot); |
| 90 |
> |
case EOF: |
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> |
mesherror(USER, "truncated mesh octree"); |
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> |
default: |
| 93 |
> |
mesherror(USER, "damaged mesh octree"); |
| 94 |
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} |
| 95 |
+ |
return (OCTREE)0; /* pro forma return */ |
| 96 |
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} |
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|
| 98 |
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|
| 99 |
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static void |
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skiptree() /* skip octree on input */ |
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{ |
| 102 |
< |
register int i; |
| 102 |
> |
int i; |
| 103 |
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|
| 104 |
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switch (getc(meshfp)) { |
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case OT_EMPTY: |
| 123 |
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|
| 124 |
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static void |
| 125 |
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getpatch(pp) /* load a mesh patch */ |
| 126 |
< |
register MESHPATCH *pp; |
| 126 |
> |
MESHPATCH *pp; |
| 127 |
|
{ |
| 128 |
|
int flags; |
| 129 |
|
int i, j; |
| 133 |
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mesherror(USER, "bad patch flags"); |
| 134 |
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/* allocate vertices */ |
| 135 |
|
pp->nverts = mgetint(2); |
| 136 |
< |
if (pp->nverts <= 0 || pp->nverts > 256) |
| 136 |
> |
if ((pp->nverts <= 0) | (pp->nverts > 256)) |
| 137 |
|
mesherror(USER, "bad number of patch vertices"); |
| 138 |
< |
pp->xyz = (uint4 (*)[3])malloc(pp->nverts*3*sizeof(uint4)); |
| 138 |
> |
pp->xyz = (uint32 (*)[3])malloc(pp->nverts*3*sizeof(uint32)); |
| 139 |
|
if (pp->xyz == NULL) |
| 140 |
|
goto nomem; |
| 141 |
|
if (flags & MT_N) { |
| 142 |
< |
pp->norm = (int4 *)calloc(pp->nverts, sizeof(int4)); |
| 142 |
> |
pp->norm = (int32 *)calloc(pp->nverts, sizeof(int32)); |
| 143 |
|
if (pp->norm == NULL) |
| 144 |
|
goto nomem; |
| 145 |
|
} else |
| 146 |
|
pp->norm = NULL; |
| 147 |
|
if (flags & MT_UV) { |
| 148 |
< |
pp->uv = (uint4 (*)[2])calloc(pp->nverts, 2*sizeof(uint4)); |
| 148 |
> |
pp->uv = (uint32 (*)[2])calloc(pp->nverts, 2*sizeof(uint32)); |
| 149 |
|
if (pp->uv == NULL) |
| 150 |
|
goto nomem; |
| 151 |
|
} else |
| 165 |
|
pp->uv[i][j] = mgetint(4); |
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|
/* local triangles */ |
| 167 |
|
pp->ntris = mgetint(2); |
| 168 |
< |
if (pp->ntris < 0 || pp->ntris > 512) |
| 168 |
> |
if ((pp->ntris < 0) | (pp->ntris > 512)) |
| 169 |
|
mesherror(USER, "bad number of local triangles"); |
| 170 |
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if (pp->ntris) { |
| 171 |
|
pp->tri = (struct PTri *)malloc(pp->ntris * |
| 179 |
|
} |
| 180 |
|
} else |
| 181 |
|
pp->tri = NULL; |
| 182 |
+ |
/* local triangle material(s) */ |
| 183 |
+ |
if (mgetint(2) > 1) { |
| 184 |
+ |
pp->trimat = (int16 *)malloc(pp->ntris*sizeof(int16)); |
| 185 |
+ |
if (pp->trimat == NULL) |
| 186 |
+ |
goto nomem; |
| 187 |
+ |
for (i = 0; i < pp->ntris; i++) |
| 188 |
+ |
pp->trimat[i] = mgetint(2); |
| 189 |
+ |
} else { |
| 190 |
+ |
pp->solemat = mgetint(2); |
| 191 |
+ |
pp->trimat = NULL; |
| 192 |
+ |
} |
| 193 |
|
/* joiner triangles */ |
| 194 |
|
pp->nj1tris = mgetint(2); |
| 195 |
< |
if (pp->nj1tris < 0 || pp->nj1tris > 512) |
| 195 |
> |
if ((pp->nj1tris < 0) | (pp->nj1tris > 256)) |
| 196 |
|
mesherror(USER, "bad number of joiner triangles"); |
| 197 |
|
if (pp->nj1tris) { |
| 198 |
|
pp->j1tri = (struct PJoin1 *)malloc(pp->nj1tris * |
| 203 |
|
pp->j1tri[i].v1j = mgetint(4); |
| 204 |
|
pp->j1tri[i].v2 = mgetint(1); |
| 205 |
|
pp->j1tri[i].v3 = mgetint(1); |
| 206 |
+ |
pp->j1tri[i].mat = mgetint(2); |
| 207 |
|
} |
| 208 |
|
} else |
| 209 |
|
pp->j1tri = NULL; |
| 210 |
|
/* double joiner triangles */ |
| 211 |
|
pp->nj2tris = mgetint(2); |
| 212 |
< |
if (pp->nj2tris < 0 || pp->nj2tris > 256) |
| 212 |
> |
if ((pp->nj2tris < 0) | (pp->nj2tris > 256)) |
| 213 |
|
mesherror(USER, "bad number of double joiner triangles"); |
| 214 |
|
if (pp->nj2tris) { |
| 215 |
|
pp->j2tri = (struct PJoin2 *)malloc(pp->nj2tris * |
| 220 |
|
pp->j2tri[i].v1j = mgetint(4); |
| 221 |
|
pp->j2tri[i].v2j = mgetint(4); |
| 222 |
|
pp->j2tri[i].v3 = mgetint(1); |
| 223 |
+ |
pp->j2tri[i].mat = mgetint(2); |
| 224 |
|
} |
| 225 |
|
} else |
| 226 |
|
pp->j2tri = NULL; |
| 236 |
|
char *path; |
| 237 |
|
int flags; |
| 238 |
|
{ |
| 239 |
+ |
char *err; |
| 240 |
|
char sbuf[64]; |
| 241 |
|
int i; |
| 242 |
|
/* check what's loaded */ |
| 249 |
|
sprintf(errmsg, "cannot open mesh file \"%s\"", path); |
| 250 |
|
error(SYSTEM, errmsg); |
| 251 |
|
} |
| 252 |
< |
#ifdef MSDOS |
| 234 |
< |
setmode(fileno(meshfp), O_BINARY); |
| 235 |
< |
#endif |
| 252 |
> |
SET_FILE_BINARY(meshfp); |
| 253 |
|
/* read header */ |
| 254 |
|
checkheader(meshfp, MESHFMT, flags&IO_INFO ? stdout : (FILE *)NULL); |
| 255 |
|
/* read format number */ |
| 256 |
|
objsize = getint(2, meshfp) - MESHMAGIC; |
| 257 |
< |
if (objsize <= 0 || objsize > MAXOBJSIZ || objsize > sizeof(long)) |
| 257 |
> |
if ((objsize <= 0) | (objsize > MAXOBJSIZ) | (objsize > sizeof(long))) |
| 258 |
|
mesherror(USER, "incompatible mesh format"); |
| 259 |
|
/* read boundaries */ |
| 260 |
|
if (flags & IO_BOUNDS) { |
| 276 |
|
mp->mcube.cutree = gettree(); |
| 277 |
|
else if (flags & IO_SCENE) |
| 278 |
|
skiptree(); |
| 279 |
< |
/* read the patches */ |
| 279 |
> |
/* read materials and patches */ |
| 280 |
|
if (flags & IO_SCENE) { |
| 281 |
+ |
mp->mat0 = nobjects; |
| 282 |
+ |
readscene(meshfp, objsize); |
| 283 |
+ |
mp->nmats = nobjects - mp->mat0; |
| 284 |
|
mp->npatches = mgetint(4); |
| 285 |
|
mp->patch = (MESHPATCH *)calloc(mp->npatches, |
| 286 |
|
sizeof(MESHPATCH)); |
| 290 |
|
getpatch(&mp->patch[i]); |
| 291 |
|
} |
| 292 |
|
/* clean up */ |
| 293 |
< |
fclose(meshfp); |
| 293 |
> |
if (meshfp != stdin) |
| 294 |
> |
fclose(meshfp); |
| 295 |
|
mp->ldflags |= flags; |
| 296 |
+ |
/* verify data */ |
| 297 |
+ |
if ((err = checkmesh(mp)) != NULL) |
| 298 |
+ |
mesherror(USER, err); |
| 299 |
|
} |