plugins/imagehl/mip.cpp

   1 /*
   2    Copyright (C) 1999-2006 Id Software, Inc. and contributors.
   3    For a list of contributors, see the accompanying CONTRIBUTORS file.
   4
   5    This file is part of GtkRadiant.
   6
   7    GtkRadiant is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    GtkRadiant is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GtkRadiant; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  */
  21
  22 #include "mip.h"
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <stdio.h>
  27
  28 typedef unsigned char byte;
  29
  30 #include "ifilesystem.h"
  31
  32 #include "imagelib.h"
  33 #include "bytestreamutils.h"
  34
  35 /*
  36    ============================================================================
  37
  38    MIP IMAGE
  39
  40    Quake WAD files contain miptex files that look like this:
  41
  42     Mip section
  43         First mip
  44             Mip header
  45             First mip (width * height)
  46             Second mip (width * height / 4)
  47             Third mip (width * height / 16)
  48             Fourth mip (width * height / 64)
  49
  50    ============================================================================
  51  */
  52
  53 #define GET_MIP_DATA_SIZE(WIDTH, HEIGHT) ( sizeof( WAD3_MIP ) + ( WIDTH * HEIGHT ) + ( WIDTH * HEIGHT / 4 ) + ( WIDTH * HEIGHT / 16 ) + ( WIDTH * HEIGHT / 64 ) )
  54
  55 const int MIP_NAME_LENGTH = 16;
  56 const int MIP_MIPMAP_COUNT = 4;
  57 typedef struct {
  58     char name[MIP_NAME_LENGTH];
  59     unsigned int width, height;
  60     unsigned int offsets[MIP_MIPMAP_COUNT];             // four mip maps stored
  61 } WAD3_MIP, *LPWAD3_MIP;
  62
  63 static const byte quakepalette[768] =
  64         {
  65                 0x00, 0x00, 0x00, 0x0f, 0x0f, 0x0f, 0x1f, 0x1f, 0x1f, 0x2f, 0x2f, 0x2f,
  66                 0x3f, 0x3f, 0x3f, 0x4b, 0x4b, 0x4b, 0x5b, 0x5b, 0x5b, 0x6b, 0x6b, 0x6b,
  67                 0x7b, 0x7b, 0x7b, 0x8b, 0x8b, 0x8b, 0x9b, 0x9b, 0x9b, 0xab, 0xab, 0xab,
  68                 0xbb, 0xbb, 0xbb, 0xcb, 0xcb, 0xcb, 0xdb, 0xdb, 0xdb, 0xeb, 0xeb, 0xeb,
  69                 0x0f, 0x0b, 0x07, 0x17, 0x0f, 0x0b, 0x1f, 0x17, 0x0b, 0x27, 0x1b, 0x0f,
  70                 0x2f, 0x23, 0x13, 0x37, 0x2b, 0x17, 0x3f, 0x2f, 0x17, 0x4b, 0x37, 0x1b,
  71                 0x53, 0x3b, 0x1b, 0x5b, 0x43, 0x1f, 0x63, 0x4b, 0x1f, 0x6b, 0x53, 0x1f,
  72                 0x73, 0x57, 0x1f, 0x7b, 0x5f, 0x23, 0x83, 0x67, 0x23, 0x8f, 0x6f, 0x23,
  73                 0x0b, 0x0b, 0x0f, 0x13, 0x13, 0x1b, 0x1b, 0x1b, 0x27, 0x27, 0x27, 0x33,
  74                 0x2f, 0x2f, 0x3f, 0x37, 0x37, 0x4b, 0x3f, 0x3f, 0x57, 0x47, 0x47, 0x67,
  75                 0x4f, 0x4f, 0x73, 0x5b, 0x5b, 0x7f, 0x63, 0x63, 0x8b, 0x6b, 0x6b, 0x97,
  76                 0x73, 0x73, 0xa3, 0x7b, 0x7b, 0xaf, 0x83, 0x83, 0xbb, 0x8b, 0x8b, 0xcb,
  77                 0x00, 0x00, 0x00, 0x07, 0x07, 0x00, 0x0b, 0x0b, 0x00, 0x13, 0x13, 0x00,
  78                 0x1b, 0x1b, 0x00, 0x23, 0x23, 0x00, 0x2b, 0x2b, 0x07, 0x2f, 0x2f, 0x07,
  79                 0x37, 0x37, 0x07, 0x3f, 0x3f, 0x07, 0x47, 0x47, 0x07, 0x4b, 0x4b, 0x0b,
  80                 0x53, 0x53, 0x0b, 0x5b, 0x5b, 0x0b, 0x63, 0x63, 0x0b, 0x6b, 0x6b, 0x0f,
  81                 0x07, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x17, 0x00, 0x00, 0x1f, 0x00, 0x00,
  82                 0x27, 0x00, 0x00, 0x2f, 0x00, 0x00, 0x37, 0x00, 0x00, 0x3f, 0x00, 0x00,
  83                 0x47, 0x00, 0x00, 0x4f, 0x00, 0x00, 0x57, 0x00, 0x00, 0x5f, 0x00, 0x00,
  84                 0x67, 0x00, 0x00, 0x6f, 0x00, 0x00, 0x77, 0x00, 0x00, 0x7f, 0x00, 0x00,
  85                 0x13, 0x13, 0x00, 0x1b, 0x1b, 0x00, 0x23, 0x23, 0x00, 0x2f, 0x2b, 0x00,
  86                 0x37, 0x2f, 0x00, 0x43, 0x37, 0x00, 0x4b, 0x3b, 0x07, 0x57, 0x43, 0x07,
  87                 0x5f, 0x47, 0x07, 0x6b, 0x4b, 0x0b, 0x77, 0x53, 0x0f, 0x83, 0x57, 0x13,
  88                 0x8b, 0x5b, 0x13, 0x97, 0x5f, 0x1b, 0xa3, 0x63, 0x1f, 0xaf, 0x67, 0x23,
  89                 0x23, 0x13, 0x07, 0x2f, 0x17, 0x0b, 0x3b, 0x1f, 0x0f, 0x4b, 0x23, 0x13,
  90                 0x57, 0x2b, 0x17, 0x63, 0x2f, 0x1f, 0x73, 0x37, 0x23, 0x7f, 0x3b, 0x2b,
  91                 0x8f, 0x43, 0x33, 0x9f, 0x4f, 0x33, 0xaf, 0x63, 0x2f, 0xbf, 0x77, 0x2f,
  92                 0xcf, 0x8f, 0x2b, 0xdf, 0xab, 0x27, 0xef, 0xcb, 0x1f, 0xff, 0xf3, 0x1b,
  93                 0x0b, 0x07, 0x00, 0x1b, 0x13, 0x00, 0x2b, 0x23, 0x0f, 0x37, 0x2b, 0x13,
  94                 0x47, 0x33, 0x1b, 0x53, 0x37, 0x23, 0x63, 0x3f, 0x2b, 0x6f, 0x47, 0x33,
  95                 0x7f, 0x53, 0x3f, 0x8b, 0x5f, 0x47, 0x9b, 0x6b, 0x53, 0xa7, 0x7b, 0x5f,
  96                 0xb7, 0x87, 0x6b, 0xc3, 0x93, 0x7b, 0xd3, 0xa3, 0x8b, 0xe3, 0xb3, 0x97,
  97                 0xab, 0x8b, 0xa3, 0x9f, 0x7f, 0x97, 0x93, 0x73, 0x87, 0x8b, 0x67, 0x7b,
  98                 0x7f, 0x5b, 0x6f, 0x77, 0x53, 0x63, 0x6b, 0x4b, 0x57, 0x5f, 0x3f, 0x4b,
  99                 0x57, 0x37, 0x43, 0x4b, 0x2f, 0x37, 0x43, 0x27, 0x2f, 0x37, 0x1f, 0x23,
 100                 0x2b, 0x17, 0x1b, 0x23, 0x13, 0x13, 0x17, 0x0b, 0x0b, 0x0f, 0x07, 0x07,
 101                 0xbb, 0x73, 0x9f, 0xaf, 0x6b, 0x8f, 0xa3, 0x5f, 0x83, 0x97, 0x57, 0x77,
 102                 0x8b, 0x4f, 0x6b, 0x7f, 0x4b, 0x5f, 0x73, 0x43, 0x53, 0x6b, 0x3b, 0x4b,
 103                 0x5f, 0x33, 0x3f, 0x53, 0x2b, 0x37, 0x47, 0x23, 0x2b, 0x3b, 0x1f, 0x23,
 104                 0x2f, 0x17, 0x1b, 0x23, 0x13, 0x13, 0x17, 0x0b, 0x0b, 0x0f, 0x07, 0x07,
 105                 0xdb, 0xc3, 0xbb, 0xcb, 0xb3, 0xa7, 0xbf, 0xa3, 0x9b, 0xaf, 0x97, 0x8b,
 106                 0xa3, 0x87, 0x7b, 0x97, 0x7b, 0x6f, 0x87, 0x6f, 0x5f, 0x7b, 0x63, 0x53,
 107                 0x6b, 0x57, 0x47, 0x5f, 0x4b, 0x3b, 0x53, 0x3f, 0x33, 0x43, 0x33, 0x27,
 108                 0x37, 0x2b, 0x1f, 0x27, 0x1f, 0x17, 0x1b, 0x13, 0x0f, 0x0f, 0x0b, 0x07,
 109                 0x6f, 0x83, 0x7b, 0x67, 0x7b, 0x6f, 0x5f, 0x73, 0x67, 0x57, 0x6b, 0x5f,
 110                 0x4f, 0x63, 0x57, 0x47, 0x5b, 0x4f, 0x3f, 0x53, 0x47, 0x37, 0x4b, 0x3f,
 111                 0x2f, 0x43, 0x37, 0x2b, 0x3b, 0x2f, 0x23, 0x33, 0x27, 0x1f, 0x2b, 0x1f,
 112                 0x17, 0x23, 0x17, 0x0f, 0x1b, 0x13, 0x0b, 0x13, 0x0b, 0x07, 0x0b, 0x07,
 113                 0xff, 0xf3, 0x1b, 0xef, 0xdf, 0x17, 0xdb, 0xcb, 0x13, 0xcb, 0xb7, 0x0f,
 114                 0xbb, 0xa7, 0x0f, 0xab, 0x97, 0x0b, 0x9b, 0x83, 0x07, 0x8b, 0x73, 0x07,
 115                 0x7b, 0x63, 0x07, 0x6b, 0x53, 0x00, 0x5b, 0x47, 0x00, 0x4b, 0x37, 0x00,
 116                 0x3b, 0x2b, 0x00, 0x2b, 0x1f, 0x00, 0x1b, 0x0f, 0x00, 0x0b, 0x07, 0x00,
 117                 0x00, 0x00, 0xff, 0x0b, 0x0b, 0xef, 0x13, 0x13, 0xdf, 0x1b, 0x1b, 0xcf,
 118                 0x23, 0x23, 0xbf, 0x2b, 0x2b, 0xaf, 0x2f, 0x2f, 0x9f, 0x2f, 0x2f, 0x8f,
 119                 0x2f, 0x2f, 0x7f, 0x2f, 0x2f, 0x6f, 0x2f, 0x2f, 0x5f, 0x2b, 0x2b, 0x4f,
 120                 0x23, 0x23, 0x3f, 0x1b, 0x1b, 0x2f, 0x13, 0x13, 0x1f, 0x0b, 0x0b, 0x0f,
 121                 0x2b, 0x00, 0x00, 0x3b, 0x00, 0x00, 0x4b, 0x07, 0x00, 0x5f, 0x07, 0x00,
 122                 0x6f, 0x0f, 0x00, 0x7f, 0x17, 0x07, 0x93, 0x1f, 0x07, 0xa3, 0x27, 0x0b,
 123                 0xb7, 0x33, 0x0f, 0xc3, 0x4b, 0x1b, 0xcf, 0x63, 0x2b, 0xdb, 0x7f, 0x3b,
 124                 0xe3, 0x97, 0x4f, 0xe7, 0xab, 0x5f, 0xef, 0xbf, 0x77, 0xf7, 0xd3, 0x8b,
 125                 0xa7, 0x7b, 0x3b, 0xb7, 0x9b, 0x37, 0xc7, 0xc3, 0x37, 0xe7, 0xe3, 0x57,
 126                 0x7f, 0xbf, 0xff, 0xab, 0xe7, 0xff, 0xd7, 0xff, 0xff, 0x67, 0x00, 0x00,
 127                 0x8b, 0x00, 0x00, 0xb3, 0x00, 0x00, 0xd7, 0x00, 0x00, 0xff, 0x00, 0x00,
 128                 0xff, 0xf3, 0x93, 0xff, 0xf7, 0xc7, 0xff, 0xff, 0xff, 0x9f, 0x5b, 0x53
 129         };
 130
 131 /*
 132    =============
 133    LoadMIP
 134    =============
 135  */
 136
 137 Image *LoadMIPBuff(byte *buffer)
 138 {
 139     byte *buf_p;
 140     int palettelength;
 141     int columns, rows, numPixels;
 142     byte *pixbuf;
 143     int i;
 144     byte *loadedpalette;
 145     const byte *palette;
 146
 147     loadedpalette = 0;
 148
 149     PointerInputStream inputStream(buffer);
 150
 151     inputStream.seek(MIP_NAME_LENGTH);
 152     columns = istream_read_int32_le(inputStream);
 153     rows = istream_read_int32_le(inputStream);
 154     int offset = istream_read_int32_le(inputStream);
 155
 156     if (std::size_t(columns) > 65536 && std::size_t(rows) > 65536) {
 157         return 0;
 158     }
 159
 160 //      unsigned long mipdatasize = GET_MIP_DATA_SIZE( columns, rows );
 161
 162     palettelength = vfsLoadFile("gfx/palette.lmp", (void **) &loadedpalette);
 163     if (palettelength == 768) {
 164         palette = loadedpalette;
 165     } else {
 166         loadedpalette = 0;
 167         palette = quakepalette;
 168     }
 169
 170     buf_p = buffer + offset;
 171
 172     numPixels = columns * rows;
 173
 174     RGBAImage *image = new RGBAImage(columns, rows);
 175
 176     //Sys_Printf("lpMip->width = %i, lpMip->height = %i, lpMip->offsets[0] = %i, lpMip->offsets[1] = %i, lpMip->offsets[2] = %i, lpMip->offsets[3] = %i, numPixels = %i\n", lpMip->width, lpMip->height, lpMip->offsets[0], lpMip->offsets[1], lpMip->offsets[2], lpMip->offsets[3], numPixels);
 177     //for (i = 0; i < sizeof(*lpMip); i++)
 178     //  Sys_Printf("%02x", (int) ((unsigned char *)lpMip)[i]);
 179
 180     pixbuf = image->getRGBAPixels();
 181
 182     for (i = 0; i < numPixels; i++) {
 183         int palIndex = *buf_p++;
 184         *pixbuf++ = palette[palIndex * 3];
 185         *pixbuf++ = palette[palIndex * 3 + 1];
 186         *pixbuf++ = palette[palIndex * 3 + 2];
 187         *pixbuf++ = 0xff;
 188     }
 189
 190     if (loadedpalette != 0) {
 191         vfsFreeFile(loadedpalette);
 192     }
 193
 194     return image;
 195 }
 196
 197 Image *LoadMIP(ArchiveFile &file)
 198 {
 199     ScopedArchiveBuffer buffer(file);
 200     return LoadMIPBuff(buffer.buffer);
 201 }