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quakeforge/tools/qfbsp/source/map.c
Bill Currie 6d5ffa9f8e [build] Move to non-recursive make 
There's still some cleanup to do, but everything seems to be working
nicely: `make -j` works, `make distcheck` passes. There is probably
plenty of bitrot in the package directories (RPM, debian), though.

The vc project files have been removed since those versions are way out
of date and quakeforge is pretty much dependent on gcc now anyway.

Most of the old Makefile.am files  are now Makemodule.am.  This should
allow for new Makefile.am files that allow local building (to be added
on an as-needed bases).  The current remaining Makefile.am files are for
standalone sub-projects.a

The installable bins are currently built in the top-level build
directory. This may change if the clutter gets to be too much.

While this does make a noticeable difference in build times, the main
reason for the switch was to take care of the growing dependency issues:
now it's possible to build tools for code generation (eg, using qfcc and
ruamoko programs for code-gen).
2020-06-25 11:35:37 +09:00

631 lines
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/*
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
See file, 'COPYING', for details.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include "QF/dstring.h"
#include "QF/hash.h"
#include "QF/quakefs.h"
#include "QF/script.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "compat.h"
#include "tools/qfbsp/include/map.h"
/** \addtogroup qfbsp_map
*/
//@{
int nummapbrushfaces;
int nummapbrushes;
#define ENTITIES_CHUNK 16
int num_entities;
int max_entities;
entity_t *entities;
#define MIPTEXNAME_CHUNK 16
int nummiptexnames;
int maxmiptexnames;
const char **miptexnames;
hashtab_t *miptex_hash;
int numdetailbrushes;
script_t *map_script;
static void __attribute__ ((format (printf, 1, 2), noreturn))
map_error (const char *fmt, ...)
{
va_list args;
va_start (args, fmt);
fprintf (stderr, "%s:%d: ", map_script->file, map_script->line);
vfprintf (stderr, fmt, args);
fprintf (stderr, "\n");
va_end (args);
exit (1);
}
static const char *
miptex_getkey (const void *key, void *unused)
{
intptr_t index = (intptr_t) key;
return miptexnames[index - 1];
}
int
FindMiptex (const char *name)
{
intptr_t index;
char mpname[MIPTEXNAME];
strncpy (mpname, name, MIPTEXNAME - 1);
mpname[MIPTEXNAME - 1] = 0;
if (strcmp (name, "hint") == 0)
return TEX_HINT;
if (strcmp (name, "skip") == 0)
return TEX_SKIP;
if (!miptex_hash)
miptex_hash = Hash_NewTable (1023, miptex_getkey, 0, 0, 0);
if (miptexnames) {
index = (intptr_t) Hash_Find (miptex_hash, mpname);
if (index)
return index - 1;
}
if (nummiptexnames == maxmiptexnames) {
maxmiptexnames += MIPTEXNAME_CHUNK;
miptexnames = realloc (miptexnames,
maxmiptexnames * sizeof (const char *));
}
index = nummiptexnames++;
miptexnames[index] = strdup (mpname);
Hash_Add (miptex_hash, (void *) (index + 1));
return index;
}
/*
FindTexinfo
Returns a global texinfo number
*/
static int
FindTexinfo (texinfo_t *t)
{
int i, j;
texinfo_t *tex;
if (t->miptex < 0)
return t->miptex; // it's HINT or SKIP
// set the special flag
if (miptexnames[t->miptex][0] == '*'
|| !strncasecmp (miptexnames[t->miptex], "sky", 3))
t->flags |= TEX_SPECIAL;
tex = bsp->texinfo;
for (i = 0; i < bsp->numtexinfo; i++, tex++) {
if (t->miptex != tex->miptex)
continue;
if (t->flags != tex->flags)
continue;
for (j = 0; j < 8; j++)
if (t->vecs[j / 4][j % 4] != tex->vecs[j / 4][j % 4])
break;
if (j != 8)
continue;
return i;
}
// allocate a new texture
BSP_AddTexinfo (bsp, t);
return i;
}
entity_t *mapent;
static void
ParseEpair (void)
{
epair_t *e;
e = malloc (sizeof (epair_t));
memset (e, 0, sizeof (epair_t));
e->next = mapent->epairs;
mapent->epairs = e;
e->key = strdup (map_script->token->str);
Script_GetToken (map_script, false);
e->value = strdup (map_script->token->str);
}
vec3_t baseaxis[18] = {
{0, 0, 1}, {1, 0, 0}, {0, -1, 0}, // floor
{0, 0, -1}, {1, 0, 0}, {0, -1, 0}, // ceiling
{1, 0, 0}, {0, 1, 0}, {0, 0, -1}, // west wall
{-1, 0, 0}, {0, 1, 0}, {0, 0, -1}, // east wall
{0, 1, 0}, {1, 0, 0}, {0, 0, -1}, // south wall
{0, -1, 0}, {1, 0, 0}, {0, 0, -1} // north wall
};
static void
TextureAxisFromPlane (plane_t *pln, vec3_t xv, vec3_t yv)
{
float dot, best;
int bestaxis, i;
best = 0;
bestaxis = 0;
for (i = 0; i < 6; i++) {
dot = DotProduct (pln->normal, baseaxis[i * 3]);
if (dot > best) {
best = dot;
bestaxis = i;
}
}
VectorCopy (baseaxis[bestaxis * 3 + 1], xv);
VectorCopy (baseaxis[bestaxis * 3 + 2], yv);
}
static vec3_t *
ParseVerts (int *n_verts)
{
vec3_t *verts;
int i;
const char *token;
token = Script_Token (map_script);
if (token[0] != ':')
map_error ("parsing brush");
// It's normally ":count", but somebody might have done ": count"
if (!token[1]) {
Script_GetToken (map_script, false);
token = Script_Token (map_script);
} else {
token++;
}
*n_verts = atoi (token);
verts = malloc (sizeof (vec3_t) * *n_verts);
for (i = 0; i < *n_verts; i++) {
Script_GetToken (map_script, true);
verts[i][0] = atof (map_script->token->str);
Script_GetToken (map_script, true);
verts[i][1] = atof (map_script->token->str);
Script_GetToken (map_script, true);
verts[i][2] = atof (map_script->token->str);
}
return verts;
}
static void
ParseBrush (void)
{
float rotate, scale[2];
float ang, sinv, cosv, ns, nt;
int sv, tv;
int i, j, n_verts = 0, hltexdef;
mbrush_t *b;
mface_t *f, *f2;
plane_t plane;
texinfo_t tx;
vec3_t planepts[3];
vec3_t t1, t2, *verts = 0;
vec_t d, vecs[2][4];
nummapbrushes++;
b = calloc (1, sizeof (mbrush_t));
b->next = mapent->brushes;
mapent->brushes = b;
Script_GetToken (map_script, true);
if (strcmp (map_script->token->str, "(") != 0) {
verts = ParseVerts (&n_verts);
} else {
Script_UngetToken (map_script);
}
do {
if (!Script_GetToken (map_script, true))
break;
if (!strcmp (map_script->token->str, "}"))
break;
if (verts) {
int n_v, v;
n_v = atoi (map_script->token->str);
Script_GetToken (map_script, false);
for (i = 0; i < n_v; i++) {
Script_GetToken (map_script, false);
v = atof (map_script->token->str);
if (i < 3)
VectorCopy (verts[v], planepts[i]);
}
Script_GetToken (map_script, false);
} else {
// read the three point plane definition
for (i = 0; i < 3; i++) {
if (i != 0)
Script_GetToken (map_script, true);
if (strcmp (map_script->token->str, "("))
map_error ("parsing brush");
for (j = 0; j < 3; j++) {
Script_GetToken (map_script, false);
planepts[i][j] = atof (map_script->token->str);
}
Script_GetToken (map_script, false);
if (strcmp (map_script->token->str, ")"))
map_error ("parsing brush");
}
}
// convert points to a plane
VectorSubtract (planepts[0], planepts[1], t1);
VectorSubtract (planepts[2], planepts[1], t2);
CrossProduct(t1, t2, plane.normal);
VectorNormalize (plane.normal);
plane.dist = DotProduct(planepts[1], plane.normal);
// read the texturedef
memset (&tx, 0, sizeof (tx));
Script_GetToken (map_script, false);
tx.miptex = FindMiptex (map_script->token->str);
Script_GetToken (map_script, false);
if ((hltexdef = !strcmp (map_script->token->str, "["))) {
// S vector
Script_GetToken (map_script, false);
vecs[0][0] = atof (map_script->token->str);
Script_GetToken (map_script, false);
vecs[0][1] = atof (map_script->token->str);
Script_GetToken (map_script, false);
vecs[0][2] = atof (map_script->token->str);
Script_GetToken (map_script, false);
vecs[0][3] = atof (map_script->token->str);
Script_GetToken (map_script, false);
if (strcmp (map_script->token->str, "]"))
map_error ("missing ]");
Script_GetToken (map_script, false);
if (strcmp (map_script->token->str, "["))
map_error ("missing [");
// T vector
Script_GetToken (map_script, false);
vecs[1][0] = atof (map_script->token->str);
Script_GetToken (map_script, false);
vecs[1][1] = atof (map_script->token->str);
Script_GetToken (map_script, false);
vecs[1][2] = atof (map_script->token->str);
Script_GetToken (map_script, false);
vecs[1][3] = atof (map_script->token->str);
Script_GetToken (map_script, false);
if (strcmp (map_script->token->str, "]"))
map_error ("missing ]");
} else {
vecs[0][3] = atof (map_script->token->str);
Script_GetToken (map_script, false);
vecs[1][3] = atof (map_script->token->str);
}
Script_GetToken (map_script, false);
rotate = atof (map_script->token->str);
Script_GetToken (map_script, false);
scale[0] = atof (map_script->token->str);
Script_GetToken (map_script, false);
scale[1] = atof (map_script->token->str);
while (Script_TokenAvailable (map_script, false)) {
Script_GetToken (map_script, false);
if (!strcmp (map_script->token->str, "detail"))
b->detail = 1;
else
map_error ("parse error");
}
// if the three points are all on a previous plane, it is a duplicate
// plane
for (f2 = b->faces; f2; f2 = f2->next) {
for (i = 0; i < 3; i++) {
d = DotProduct (planepts[i], f2->plane.normal)
- f2->plane.dist;
if (d < -ON_EPSILON || d > ON_EPSILON)
break;
}
if (i == 3)
break;
}
if (f2) {
printf ("WARNING: brush with duplicate plane\n");
continue;
}
if (DotProduct (plane.normal, plane.normal) < 0.1) {
printf ("WARNING: brush plane with no normal on line %d\n",
map_script->line);
continue;
}
if (!hltexdef) {
// fake proper texture vectors from QuakeEd style
TextureAxisFromPlane (&plane, vecs[0], vecs[1]);
}
if (!scale[0])
scale[0] = 1;
if (!scale[1])
scale[1] = 1;
// rotate axis
if (rotate == 0) {
sinv = 0;
cosv = 1;
} else if (rotate == 90) {
sinv = 1;
cosv = 0;
} else if (rotate == 180) {
sinv = 0;
cosv = -1;
} else if (rotate == 270) {
sinv = -1;
cosv = 0;
} else {
ang = rotate / 180 * M_PI;
sinv = sin (ang);
cosv = cos (ang);
}
if (vecs[0][0])
sv = 0;
else if (vecs[0][1])
sv = 1;
else
sv = 2;
if (vecs[1][0])
tv = 0;
else if (vecs[1][1])
tv = 1;
else
tv = 2;
for (i = 0; i < 2; i++) {
// rotate
ns = cosv * vecs[i][sv] - sinv * vecs[i][tv];
nt = sinv * vecs[i][sv] + cosv * vecs[i][tv];
vecs[i][sv] = ns;
vecs[i][tv] = nt;
// scale and store into texinfo
for (j = 0; j < 3; j++)
tx.vecs[i][j] = vecs[i][j] / scale[i];
tx.vecs[i][3] = vecs[i][3];
}
f = calloc (1, sizeof (mface_t));
f->next = b->faces;
b->faces = f;
f->plane = plane;
// unique the texinfo
f->texinfo = FindTexinfo (&tx);
nummapbrushfaces++;
} while (1);
if (verts)
free (verts);
}
static qboolean
ParseEntity (void)
{
if (!Script_GetToken (map_script, true))
return false;
if (strcmp (map_script->token->str, "{"))
map_error ("ParseEntity: { not found");
if (num_entities == max_entities) {
max_entities += ENTITIES_CHUNK;
entities = realloc (entities, max_entities * sizeof (entity_t));
}
mapent = &entities[num_entities];
num_entities++;
memset (mapent, 0, sizeof (entity_t));
mapent->line = map_script->line;
do {
if (!Script_GetToken (map_script, true))
map_error ("ParseEntity: EOF without closing brace");
if (!strcmp (map_script->token->str, "}"))
break;
if (!strcmp (map_script->token->str, "{"))
ParseBrush ();
else
ParseEpair ();
} while (1);
if (!strcmp ("am_detail", ValueForKey (mapent, "classname"))) {
mbrush_t *b, *lb;
// set detail flag
for (lb = b = mapent->brushes; b; lb = b, b = b->next) {
b->detail = 1;
numdetailbrushes++;
}
// add to worldspawn
lb->next = entities->brushes;
entities->brushes = mapent->brushes;
num_entities--;
memset (mapent, 0, sizeof (entity_t));
return true;
} else {
mbrush_t *b;
for (b = mapent->brushes; b; b = b->next)
if (b->detail)
numdetailbrushes++;
}
GetVectorForKey (mapent, "origin", mapent->origin);
return true;
}
void
LoadMapFile (const char *filename)
{
char *buf;
QFile *file;
int bytes;
file = Qopen (filename, "rt");
if (!file)
Sys_Error ("couldn't open %s. %s", filename, strerror(errno));
bytes = Qfilesize (file);
buf = malloc (bytes + 1);
bytes = Qread (file, buf, bytes);
buf[bytes] = 0;
Qclose (file);
map_script = Script_New ();
map_script->single = "";
Script_Start (map_script, filename, buf);
num_entities = 0;
if (Script_GetToken (map_script, 1)) {
if (strequal (map_script->token->str, "QuakeForge-map")) {
if (!Script_TokenAvailable (map_script, 1))
map_error ("Unexpected EOF reading %s\n", filename);
} else {
Script_UngetToken (map_script);
while (ParseEntity ())
;
}
}
Script_Delete (map_script);
map_script = 0;
free (buf);
qprintf ("--- LoadMapFile ---\n");
qprintf ("%s\n", filename);
qprintf ("%5i faces\n", nummapbrushfaces);
qprintf ("%5i brushes (%i detail)\n", nummapbrushes, numdetailbrushes);
qprintf ("%5i entities\n", num_entities);
qprintf ("%5i textures\n", nummiptexnames);
qprintf ("%5i texinfo\n", bsp->numtexinfo);
}
void
PrintEntity (const entity_t *ent)
{
const epair_t *ep;
printf ("%20s : %d\n", "map source line", ent->line);
for (ep = ent->epairs; ep; ep = ep->next)
printf ("%20s : %s\n", ep->key, ep->value);
}
const char *
ValueForKey (const entity_t *ent, const char *key)
{
const epair_t *ep;
for (ep = ent->epairs; ep; ep = ep->next)
if (!strcmp (ep->key, key))
return ep->value;
return "";
}
void
SetKeyValue (entity_t *ent, const char *key, const char *value)
{
epair_t *ep;
for (ep = ent->epairs; ep; ep = ep->next)
if (!strcmp (ep->key, key)) {
free (ep->value);
ep->value = strdup (value);
return;
}
ep = malloc (sizeof (*ep));
ep->next = ent->epairs;
ent->epairs = ep;
ep->key = strdup (key);
ep->value = strdup (value);
}
void
GetVectorForKey (const entity_t *ent, const char *key, vec3_t vec)
{
const char *k;
double v1, v2, v3;
k = ValueForKey (ent, key);
v1 = v2 = v3 = 0;
// scanf into doubles, then assign, so it is vec_t size independent
sscanf (k, "%lf %lf %lf", &v1, &v2, &v3);
vec[0] = v1;
vec[1] = v2;
vec[2] = v3;
}
void
WriteEntitiesToString (void)
{
dstring_t *buf;
const epair_t *ep;
int i;
buf = dstring_newstr ();
for (i = 0; i < num_entities; i++) {
ep = entities[i].epairs;
if (!ep)
continue; // ent got removed
dstring_appendstr (buf, "{\n");
for (ep = entities[i].epairs; ep; ep = ep->next) {
dstring_appendstr (buf, va ("\"%s\" \"%s\"\n",
ep->key, ep->value));
}
dstring_appendstr (buf, "}\n");
}
BSP_AddEntities (bsp, buf->str, buf->size);
}
//@}
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