2 Copyright (C) 2001-2006, William Joseph.
5 This file is part of GtkRadiant.
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.
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.
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
24 #include "ifilesystem.h"
27 #include "stream/stringstream.h"
28 #include "bytestreamutils.h"
31 const int QUAKE2_WAL = 0;
32 const int HERETIC2_M8 = 1;
34 typedef unsigned char byte;
43 void LoadPCXPalette(const char *filename, byte palette[768])
46 int length = vfsLoadFile(filename, (void **) &buffer);
51 const pcx_header_t *pcx = reinterpret_cast<const pcx_header_t *>( buffer );
53 if (pcx->manufacturer != 0x0a
56 || pcx->bits_per_pixel != 8) {
60 memcpy(palette, buffer + length - 768, 768);
65 const int WAL_NAME_LENGTH = 32;
66 const int WAL_MIPMAP_COUNT = 4;
68 char name[WAL_NAME_LENGTH];
69 unsigned width, height;
70 unsigned offsets[WAL_MIPMAP_COUNT]; // four mip maps stored
71 char animname[WAL_NAME_LENGTH]; // next frame in animation chain
77 const int M8_NAME_LENGTH = 32;
78 const int M8_MIPMAP_COUNT = 16;
81 char name[M8_NAME_LENGTH];
82 unsigned width[M8_MIPMAP_COUNT], height[M8_MIPMAP_COUNT]; // width and height of each mipmap
83 unsigned offsets[M8_MIPMAP_COUNT]; // 16 mip maps stored
84 char animname[M8_NAME_LENGTH]; // next frame in animation chain
85 byte palette[768]; // palette stored in m8
91 Image *LoadMipTex(byte *buffer, byte TypeofTex)
93 int w, h, offset, flags, contents, value;
97 PointerInputStream inputStream(buffer);
99 if (TypeofTex == HERETIC2_M8) {
100 inputStream.seek(4 + M8_NAME_LENGTH); // version, name
101 w = istream_read_int32_le(inputStream);
102 inputStream.seek(4 * (M8_MIPMAP_COUNT - 1)); // remaining widths
103 h = istream_read_int32_le(inputStream);
104 inputStream.seek(4 * (M8_MIPMAP_COUNT - 1)); // remaining heights
105 offset = istream_read_int32_le(inputStream);
106 inputStream.seek(4 * (M8_MIPMAP_COUNT - 1)); // remaining offsets
107 inputStream.seek(M8_NAME_LENGTH); // animname
108 inputStream.read(palette, 768);
109 flags = istream_read_int32_le(inputStream);
110 contents = istream_read_int32_le(inputStream);
111 value = istream_read_int32_le(inputStream);
112 source = buffer + offset;
114 LoadPCXPalette("pics/colormap.pcx", palette);
116 inputStream.seek(WAL_NAME_LENGTH); // name
117 w = istream_read_int32_le(inputStream);
118 h = istream_read_int32_le(inputStream);
119 offset = istream_read_int32_le(inputStream);
120 inputStream.seek(4 * (WAL_MIPMAP_COUNT - 1)); // remaining offsets
121 inputStream.seek(WAL_NAME_LENGTH); // animname
122 flags = istream_read_int32_le(inputStream);
123 contents = istream_read_int32_le(inputStream);
124 value = istream_read_int32_le(inputStream);
125 source = buffer + offset;
128 RGBAImageFlags *image = new RGBAImageFlags(w, h, flags, contents, value);
130 byte *dest = image->getRGBAPixels();
131 byte *end = source + (w * h);
132 for (; source != end; ++source, dest += 4) {
133 *(dest + 0) = palette[*source * 3 + 0];
134 *(dest + 1) = palette[*source * 3 + 1];
135 *(dest + 2) = palette[*source * 3 + 2];
142 Image *LoadWal(ArchiveFile &file)
144 ScopedArchiveBuffer buffer(file);
145 return LoadMipTex(buffer.buffer, QUAKE2_WAL);
148 Image *LoadM8(ArchiveFile &file)
150 ScopedArchiveBuffer buffer(file);
151 return LoadMipTex(buffer.buffer, HERETIC2_M8);