mirror of
https://github.com/nzp-team/glquake.git
synced 2024-11-27 14:22:12 +00:00
317 lines
8 KiB
C
317 lines
8 KiB
C
/*
|
|
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.
|
|
|
|
*/
|
|
// wad.c
|
|
|
|
#include "quakedef.h"
|
|
|
|
int wad_numlumps;
|
|
lumpinfo_t *wad_lumps;
|
|
byte *wad_base;
|
|
|
|
void SwapPic (qpic_t *pic);
|
|
|
|
/*
|
|
==================
|
|
W_CleanupName
|
|
|
|
Lowercases name and pads with spaces and a terminating 0 to the length of
|
|
lumpinfo_t->name.
|
|
Used so lumpname lookups can proceed rapidly by comparing 4 chars at a time
|
|
Space padding is so names can be printed nicely in tables.
|
|
Can safely be performed in place.
|
|
==================
|
|
*/
|
|
void W_CleanupName (char *in, char *out)
|
|
{
|
|
int i;
|
|
int c;
|
|
|
|
for (i=0 ; i<16 ; i++ )
|
|
{
|
|
c = in[i];
|
|
if (!c)
|
|
break;
|
|
|
|
if (c >= 'A' && c <= 'Z')
|
|
c += ('a' - 'A');
|
|
out[i] = c;
|
|
}
|
|
|
|
for ( ; i< 16 ; i++ )
|
|
out[i] = 0;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
====================
|
|
W_LoadWadFile
|
|
====================
|
|
*/
|
|
void W_LoadWadFile (char *filename)
|
|
{
|
|
lumpinfo_t *lump_p;
|
|
wadinfo_t *header;
|
|
unsigned i;
|
|
int infotableofs;
|
|
|
|
wad_base = COM_LoadHunkFile (filename);
|
|
if (!wad_base)
|
|
Sys_Error ("W_LoadWadFile: couldn't load %s", filename);
|
|
|
|
header = (wadinfo_t *)wad_base;
|
|
|
|
if (header->identification[0] != 'W'
|
|
|| header->identification[1] != 'A'
|
|
|| header->identification[2] != 'D'
|
|
|| header->identification[3] != '2')
|
|
Sys_Error ("Wad file %s doesn't have WAD2 id\n",filename);
|
|
|
|
wad_numlumps = LittleLong(header->numlumps);
|
|
infotableofs = LittleLong(header->infotableofs);
|
|
wad_lumps = (lumpinfo_t *)(wad_base + infotableofs);
|
|
|
|
for (i=0, lump_p = wad_lumps ; i<wad_numlumps ; i++,lump_p++)
|
|
{
|
|
lump_p->filepos = LittleLong(lump_p->filepos);
|
|
lump_p->size = LittleLong(lump_p->size);
|
|
W_CleanupName (lump_p->name, lump_p->name);
|
|
if (lump_p->type == TYP_QPIC)
|
|
SwapPic ( (qpic_t *)(wad_base + lump_p->filepos));
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
W_GetLumpinfo
|
|
=============
|
|
*/
|
|
lumpinfo_t *W_GetLumpinfo (char *name)
|
|
{
|
|
int i;
|
|
lumpinfo_t *lump_p;
|
|
char clean[16];
|
|
|
|
W_CleanupName (name, clean);
|
|
|
|
for (lump_p=wad_lumps, i=0 ; i<wad_numlumps ; i++,lump_p++)
|
|
{
|
|
if (!strcmp(clean, lump_p->name))
|
|
return lump_p;
|
|
}
|
|
|
|
Sys_Error ("W_GetLumpinfo: %s not found", name);
|
|
return NULL;
|
|
}
|
|
|
|
void *W_GetLumpName (char *name)
|
|
{
|
|
lumpinfo_t *lump;
|
|
|
|
lump = W_GetLumpinfo (name);
|
|
|
|
return (void *)(wad_base + lump->filepos);
|
|
}
|
|
|
|
void *W_GetLumpNum (int num)
|
|
{
|
|
lumpinfo_t *lump;
|
|
|
|
if (num < 0 || num > wad_numlumps)
|
|
Sys_Error ("W_GetLumpNum: bad number: %i", num);
|
|
|
|
lump = wad_lumps + num;
|
|
|
|
return (void *)(wad_base + lump->filepos);
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
|
|
automatic byte swapping
|
|
|
|
=============================================================================
|
|
*/
|
|
|
|
void SwapPic (qpic_t *pic)
|
|
{
|
|
pic->width = LittleLong(pic->width);
|
|
pic->height = LittleLong(pic->height);
|
|
}
|
|
|
|
/*
|
|
=============================================================================
|
|
WAD3 Texture Loading for BSP 3.0 Support From Baker --Diabolickal HLBSP
|
|
=============================================================================
|
|
*/
|
|
|
|
#define TEXWAD_MAXIMAGES 16384
|
|
|
|
typedef struct {
|
|
char name[MAX_QPATH];
|
|
FILE *file;
|
|
int position;
|
|
int size;
|
|
} texwadlump_t;
|
|
|
|
static texwadlump_t texwadlump[TEXWAD_MAXIMAGES];
|
|
|
|
void WAD3_LoadTextureWadFile (char *filename) {
|
|
lumpinfo_t *lumps, *lump_p;
|
|
wadinfo_t header;
|
|
int i, j, infotableofs, numlumps, lowmark;
|
|
FILE *file;
|
|
|
|
if (COM_FOpenFile (va("textures/halflife/%s", filename), &file) != -1)
|
|
goto loaded;
|
|
if (COM_FOpenFile (va("textures/%s", filename), &file) != -1)
|
|
goto loaded;
|
|
if (COM_FOpenFile (filename, &file) != -1)
|
|
goto loaded;
|
|
|
|
Host_Error ("Couldn't load halflife wad \"%s\"\n", filename);
|
|
|
|
loaded:
|
|
if (fread(&header, 1, sizeof(wadinfo_t), file) != sizeof(wadinfo_t)) {
|
|
Con_Printf ("WAD3_LoadTextureWadFile: unable to read wad header");
|
|
return;
|
|
}
|
|
|
|
if (memcmp(header.identification, "WAD3", 4)) {
|
|
Con_Printf ("WAD3_LoadTextureWadFile: Wad file %s doesn't have WAD3 id\n",filename);
|
|
return;
|
|
}
|
|
|
|
numlumps = LittleLong(header.numlumps);
|
|
if (numlumps < 1 || numlumps > TEXWAD_MAXIMAGES) {
|
|
Con_Printf ("WAD3_LoadTextureWadFile: invalid number of lumps (%i)\n", numlumps);
|
|
return;
|
|
}
|
|
|
|
infotableofs = LittleLong(header.infotableofs);
|
|
if (fseek(file, infotableofs, SEEK_SET)) {
|
|
Con_Printf ("WAD3_LoadTextureWadFile: unable to seek to lump table");
|
|
return;
|
|
}
|
|
|
|
lowmark = Hunk_LowMark();
|
|
if (!(lumps = Hunk_Alloc(sizeof(lumpinfo_t) * numlumps))) {
|
|
Con_Printf ("WAD3_LoadTextureWadFile: unable to allocate temporary memory for lump table");
|
|
return;
|
|
}
|
|
|
|
if (fread(lumps, 1, sizeof(lumpinfo_t) * numlumps, file) != sizeof(lumpinfo_t) * numlumps) {
|
|
Con_Printf ("WAD3_LoadTextureWadFile: unable to read lump table");
|
|
Hunk_FreeToLowMark(lowmark);
|
|
return;
|
|
}
|
|
|
|
for (i = 0, lump_p = lumps; i < numlumps; i++,lump_p++) {
|
|
W_CleanupName (lump_p->name, lump_p->name);
|
|
for (j = 0; j < TEXWAD_MAXIMAGES; j++) {
|
|
if (!texwadlump[j].name[0] || !strcmp(lump_p->name, texwadlump[j].name))
|
|
break;
|
|
}
|
|
if (j == TEXWAD_MAXIMAGES)
|
|
break; // we are full, don't load any more
|
|
if (!texwadlump[j].name[0])
|
|
Q_strncpyz (texwadlump[j].name, lump_p->name, sizeof(texwadlump[j].name));
|
|
texwadlump[j].file = file;
|
|
texwadlump[j].position = LittleLong(lump_p->filepos);
|
|
texwadlump[j].size = LittleLong(lump_p->disksize);
|
|
}
|
|
|
|
Hunk_FreeToLowMark(lowmark);
|
|
//leaves the file open
|
|
}
|
|
|
|
//converts paletted to rgba
|
|
static byte *ConvertWad3ToRGBA(miptex_t *tex) {
|
|
byte *in, *data, *pal;
|
|
int i, p, image_size;
|
|
|
|
if (!tex->offsets[0])
|
|
Sys_Error("ConvertWad3ToRGBA: tex->offsets[0] == 0");
|
|
|
|
image_size = tex->width * tex->height;
|
|
in = (byte *) ((byte *) tex + tex->offsets[0]);
|
|
data = malloc(image_size * 4); // Baker
|
|
|
|
pal = in + ((image_size * 85) >> 6) + 2;
|
|
for (i = 0; i < image_size; i++) {
|
|
p = *in++;
|
|
if (tex->name[0] == '{' && p == 255) {
|
|
((int *) data)[i] = 0;
|
|
} else {
|
|
p *= 3;
|
|
data[i * 4 + 0] = pal[p];
|
|
data[i * 4 + 1] = pal[p + 1];
|
|
data[i * 4 + 2] = pal[p + 2];
|
|
data[i * 4 + 3] = 255;
|
|
}
|
|
}
|
|
return data;
|
|
}
|
|
|
|
byte *WAD3_LoadTexture(miptex_t *mt) {
|
|
char texname[MAX_QPATH];
|
|
int i, j, lowmark = 0;
|
|
FILE *file;
|
|
miptex_t *tex;
|
|
byte *data;
|
|
|
|
if (mt->offsets[0])
|
|
return ConvertWad3ToRGBA(mt);
|
|
|
|
texname[sizeof(texname) - 1] = 0;
|
|
W_CleanupName (mt->name, texname);
|
|
for (i = 0; i < TEXWAD_MAXIMAGES; i++) {
|
|
if (!texwadlump[i].name[0])
|
|
break;
|
|
if (strcmp(texname, texwadlump[i].name))
|
|
continue;
|
|
|
|
file = texwadlump[i].file;
|
|
if (fseek(file, texwadlump[i].position, SEEK_SET)) {
|
|
Con_Printf("WAD3_LoadTexture: corrupt WAD3 file");
|
|
return NULL;
|
|
}
|
|
lowmark = Hunk_LowMark();
|
|
tex = Hunk_Alloc(texwadlump[i].size);
|
|
if (fread(tex, 1, texwadlump[i].size, file) < texwadlump[i].size) {
|
|
Con_Printf("WAD3_LoadTexture: corrupt WAD3 file");
|
|
Hunk_FreeToLowMark(lowmark);
|
|
return NULL;
|
|
}
|
|
tex->width = LittleLong(tex->width);
|
|
tex->height = LittleLong(tex->height);
|
|
if (tex->width != mt->width || tex->height != mt->height) {
|
|
Hunk_FreeToLowMark(lowmark);
|
|
return NULL;
|
|
}
|
|
for (j = 0;j < MIPLEVELS;j++)
|
|
tex->offsets[j] = LittleLong(tex->offsets[j]);
|
|
data = ConvertWad3ToRGBA(tex);
|
|
Hunk_FreeToLowMark(lowmark);
|
|
return data;
|
|
}
|
|
return NULL;
|
|
}
|