2 Copyright (C) 1999-2006 Id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
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
22 // by Hydra - hydra@hydras-world.com
30 typedef unsigned char byte;
32 #include "ifilesystem.h"
37 ============================================================================
39 IDSP IMAGE (.spr files)
41 Some code copied straight from the Q1 source, also used the HalfLife SDK as
44 ============================================================================
47 typedef enum { ST_SYNC = 0, ST_RAND } synctype_t;
48 typedef enum { SPR_SINGLE = 0, SPR_GROUP } spriteframetype_t;
50 typedef struct dspriteheader_s {
94 const int IDSPRITEHEADER = (('P' << 24) + ('S' << 16) + ('D' << 8) + 'I');
95 // little-endian "IDSP"
103 Image *LoadIDSPBuff(byte *buffer)
111 unsigned char red, green, blue, alphabyte;
113 dspriteheader_t *header;
116 dspriteframetype_t *pframetype;
119 dspriteframe_t *spriteframe;
121 header = (dspriteheader_t *) buffer;
123 if (header->ident != IDSPRITEHEADER) {
124 globalErrorStream() << "WARNING: IDSP file has wrong header\n";
128 version = header->version;
129 if (version != 1 && version != 2) {
130 globalErrorStream() << "WARNING: IDSP file has wrong version number "
131 "(" << version << " should be 1 or 2)\n";
135 // initialise variables depending on the sprite version.
138 pinv1 = (dspritev1_t *) (header + 1);
139 numframes = pinv1->numframes;
140 columns = pinv1->width;
141 rows = pinv1->height;
142 pframetype = (dspriteframetype_t *) (pinv1 + 1);
145 pinv2 = (dspritev2_t *) (header + 1);
146 numframes = pinv2->numframes;
147 columns = pinv2->width;
148 rows = pinv2->height;
149 pframetype = (dspriteframetype_t *) (pinv2 + 1);
152 globalErrorStream() << "WARNING: IDSP file has unsupported version\n";
156 globalErrorStream() << "WARNING: IDSP file has multiple frames, only the first frame will be used.\n";
159 // palette = buffer+mipdatasize+2;
160 // buf_p = buffer+lpMip->offsets[0];
162 RGBAImage *image = new RGBAImage(columns, rows);
165 frametype = spriteframetype_t( pframetype->type );
166 if ( frametype == SPR_SINGLE ) {
167 globalOutputStream() << "Single Frame\n";
169 else if ( frametype == SPR_GROUP ) {
170 globalOutputStream() << "Group of Frames\n";
174 globalOutputStream() << "Bleh!\n"; // <-- we always get this, wtf!
178 palette = (byte *) (pframetype + 1);
179 spriteframe = (dspriteframe_t *) (palette + (256 * 3) + 4); // what are those 4 extra bytes ? what's missing ?
180 buf_p = (byte *) (spriteframe + 1);
182 for (row = 0; row < rows; row++) {
183 pixbuf = image->getRGBAPixels() + row * columns * 4;
185 for (column = 0; column < columns; column++) {
190 red = *(palette + (palIndex * 3));
191 green = *(palette + (palIndex * 3) + 1);
192 blue = *(palette + (palIndex * 3) + 2);
194 // HalfLife engine makes pixels that are BLUE transparent. (RGB = 0x0000FF)
195 // So show them that way in the editor.
196 if (blue == 0xff && red == 0x00 && green == 0x00) {
197 alphabyte = 0xff; //FIXME: backwards? (so sprite models to render correctly)
198 blue = 0x00; // don't set the resulting pixel to blue
200 alphabyte = 0x00; //FIXME: backwards? (so sprite models to render correctly)
207 *pixbuf++ = alphabyte;
214 Image *LoadIDSP(ArchiveFile &file)
216 ScopedArchiveBuffer buffer(file);
217 return LoadIDSPBuff(buffer.buffer);