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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5131 | clevermous | 1 | /* |
| 2 | Copyright (C) 1996-1997 Id Software, Inc. |
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| 3 | |||
| 4 | This program is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU General Public License |
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| 6 | as published by the Free Software Foundation; either version 2 |
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| 7 | of the License, or (at your option) any later version. |
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| 8 | |||
| 9 | This program is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| 12 | |||
| 13 | See the GNU General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU General Public License |
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| 16 | along with this program; if not, write to the Free Software |
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| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | |||
| 19 | */ |
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| 20 | // wad.c |
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| 21 | |||
| 22 | #include "quakedef.h" |
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| 23 | |||
| 24 | int wad_numlumps; |
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| 25 | lumpinfo_t *wad_lumps; |
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| 26 | byte *wad_base; |
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| 27 | |||
| 28 | void SwapPic (qpic_t *pic); |
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| 29 | |||
| 30 | /* |
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| 31 | ================== |
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| 32 | W_CleanupName |
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| 33 | |||
| 34 | Lowercases name and pads with spaces and a terminating 0 to the length of |
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| 35 | lumpinfo_t->name. |
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| 36 | Used so lumpname lookups can proceed rapidly by comparing 4 chars at a time |
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| 37 | Space padding is so names can be printed nicely in tables. |
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| 38 | Can safely be performed in place. |
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| 39 | ================== |
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| 40 | */ |
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| 41 | void W_CleanupName (char *in, char *out) |
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| 42 | { |
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| 43 | int i; |
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| 44 | int c; |
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| 45 | |||
| 46 | for (i=0 ; i<16 ; i++ ) |
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| 47 | { |
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| 48 | c = in[i]; |
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| 49 | if (!c) |
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| 50 | break; |
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| 51 | |||
| 52 | if (c >= 'A' && c <= 'Z') |
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| 53 | c += ('a' - 'A'); |
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| 54 | out[i] = c; |
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| 55 | } |
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| 56 | |||
| 57 | for ( ; i< 16 ; i++ ) |
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| 58 | out[i] = 0; |
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| 59 | } |
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| 60 | |||
| 61 | |||
| 62 | |||
| 63 | /* |
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| 64 | ==================== |
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| 65 | W_LoadWadFile |
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| 66 | ==================== |
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| 67 | */ |
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| 68 | void W_LoadWadFile (char *filename) |
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| 69 | { |
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| 70 | lumpinfo_t *lump_p; |
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| 71 | wadinfo_t *header; |
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| 72 | unsigned i; |
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| 73 | int infotableofs; |
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| 74 | |||
| 75 | wad_base = COM_LoadHunkFile (filename); |
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| 76 | if (!wad_base) |
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| 77 | Sys_Error ("W_LoadWadFile: couldn't load %s", filename); |
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| 78 | |||
| 79 | header = (wadinfo_t *)wad_base; |
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| 80 | |||
| 81 | if (header->identification[0] != 'W' |
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| 82 | || header->identification[1] != 'A' |
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| 83 | || header->identification[2] != 'D' |
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| 84 | || header->identification[3] != '2') |
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| 85 | Sys_Error ("Wad file %s doesn't have WAD2 id\n",filename); |
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| 86 | |||
| 87 | wad_numlumps = LittleLong(header->numlumps); |
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| 88 | infotableofs = LittleLong(header->infotableofs); |
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| 89 | wad_lumps = (lumpinfo_t *)(wad_base + infotableofs); |
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| 90 | |||
| 91 | for (i=0, lump_p = wad_lumps ; i |
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| 92 | { |
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| 93 | lump_p->filepos = LittleLong(lump_p->filepos); |
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| 94 | lump_p->size = LittleLong(lump_p->size); |
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| 95 | W_CleanupName (lump_p->name, lump_p->name); |
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| 96 | if (lump_p->type == TYP_QPIC) |
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| 97 | SwapPic ( (qpic_t *)(wad_base + lump_p->filepos)); |
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| 98 | } |
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| 99 | } |
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| 100 | |||
| 101 | |||
| 102 | /* |
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| 103 | ============= |
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| 104 | W_GetLumpinfo |
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| 105 | ============= |
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| 106 | */ |
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| 107 | lumpinfo_t *W_GetLumpinfo (char *name) |
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| 108 | { |
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| 109 | int i; |
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| 110 | lumpinfo_t *lump_p; |
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| 111 | char clean[16]; |
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| 112 | |||
| 113 | W_CleanupName (name, clean); |
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| 114 | |||
| 115 | for (lump_p=wad_lumps, i=0 ; i |
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| 116 | { |
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| 117 | if (!strcmp(clean, lump_p->name)) |
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| 118 | return lump_p; |
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| 119 | } |
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| 120 | |||
| 121 | Sys_Error ("W_GetLumpinfo: %s not found", name); |
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| 122 | return NULL; |
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| 123 | } |
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| 124 | |||
| 125 | void *W_GetLumpName (char *name) |
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| 126 | { |
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| 127 | lumpinfo_t *lump; |
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| 128 | |||
| 129 | lump = W_GetLumpinfo (name); |
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| 130 | |||
| 131 | return (void *)(wad_base + lump->filepos); |
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| 132 | } |
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| 133 | |||
| 134 | void *W_GetLumpNum (int num) |
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| 135 | { |
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| 136 | lumpinfo_t *lump; |
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| 137 | |||
| 138 | if (num < 0 || num > wad_numlumps) |
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| 139 | Sys_Error ("W_GetLumpNum: bad number: %i", num); |
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| 140 | |||
| 141 | lump = wad_lumps + num; |
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| 142 | |||
| 143 | return (void *)(wad_base + lump->filepos); |
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| 144 | } |
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| 145 | |||
| 146 | /* |
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| 147 | ============================================================================= |
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| 148 | |||
| 149 | automatic byte swapping |
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| 150 | |||
| 151 | ============================================================================= |
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| 152 | */ |
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| 153 | |||
| 154 | void SwapPic (qpic_t *pic) |
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| 155 | { |
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| 156 | pic->width = LittleLong(pic->width); |
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| 157 | pic->height = LittleLong(pic->height); |
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| 158 | } |