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[PATCH] bsputil: Add texture extraction 

Add the ability to extract texture information from a BSP file and write it
out as a WAD file. Not very robust in the face of errors or corrupt BSP files,
but it does the job for now.

Signed-off-by: Tyrann <tyrann@disenchant.net>
This commit is contained in:
Tyrann 2006-10-03 08:53:05 +09:30
parent b05f86296d
commit 6027e5aeb3
1 changed files with 75 additions and 2 deletions
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77
bsputil/bsputil.c
View File

@ -22,6 +22,62 @@
#include <common/cmdlib.h>
#include <common/bspfile.h>
/* FIXME - share header with qbsp, etc. */
typedef struct {
char identification[4]; // should be WAD2
int numlumps;
int infotableofs;
} wadinfo_t;
typedef struct {
int filepos;
int disksize;
int size; // uncompressed
char type;
char compression;
char pad1, pad2;
char name[16]; // must be null terminated
} lumpinfo_t;
void
ExportWad(FILE *f)
{
wadinfo_t header;
dmiptexlump_t *m;
miptex_t *mt;
int i, data;
lumpinfo_t l;
m = (dmiptexlump_t *)dtexdata;
memcpy(&header.identification, "WAD2", 4);
header.numlumps = m->nummiptex;
header.infotableofs = sizeof(wadinfo_t);
fwrite(&header, sizeof(wadinfo_t), 1, f);
data = sizeof(wadinfo_t) + sizeof(lumpinfo_t) * m->nummiptex;
for (i = 0; i < m->nummiptex; i++) {
mt = (miptex_t *)((byte *)m + m->dataofs[i]);
l.filepos = data;
l.disksize = sizeof(miptex_t) + mt->width * mt->height / 64 * 85;
l.size = l.disksize;
l.type = 'D';
l.compression = 0;
l.pad1 = l.pad2 = 0;
memcpy(l.name, mt->name, 15);
l.name[15] = 0;
fwrite(&l, sizeof(lumpinfo_t), 1, f);
data += l.disksize;
}
for (i = 0; i < m->nummiptex; i++) {
mt = (miptex_t *)((byte *)m + m->dataofs[i]);
fwrite(mt, sizeof(miptex_t) + mt->width * mt->height / 64 * 85, 1, f);
}
}
int
main(int argc, char **argv)
{
@ -31,7 +87,8 @@ main(int argc, char **argv)
FILE *f;
if (argc == 1)
Error("usage: bsputil [--extract-entities] bspfile");
Error("usage: bsputil [--extract-entities] [--extract-textures] "
"bspfile");
strcpy(source, argv[argc - 1]);
DefaultExtension(source, ".bsp");
@ -48,12 +105,28 @@ main(int argc, char **argv)
f = fopen(source, "w");
if (!f)
Error("couldn't open %s for writing\n");
Error("couldn't open %s for writing\n", source);
err = fwrite(dentdata, sizeof(char), entdatasize - 1, f);
if (err != entdatasize - 1)
Error("%s", strerror(errno));
err = fclose(f);
if (err)
Error("%s", strerror(errno));
printf("done.\n");
} else if (!strcmp(argv[i], "--extract-textures")) {
StripExtension(source);
DefaultExtension(source, ".wad");
printf("-> writing %s... ", source);
f = fopen(source, "wb");
if (!f)
Error("couldn't open %s for writing\n", source);
ExportWad(f);
err = fclose(f);
if (err)
Error("%s", strerror(errno));