bnnm

/* Decodes Inti Creates' BIGRP files with custom codecs, found in games using their current 
 * "Inti Creates Engine" ("ICE") / "Imperial Engine" ('IMP'?). Engine's name is said to be
 * the latter (ICE being the earlier iteration) but debug info still shows the former.
 * Reverse engineered from various exes (if you use this as a base credit it, please).
 * 
 * This code tries to follow the original closely for documentation purposes, with some extra 
 * error control (original doesn't check zlib errors or buf sizes) plus a few extra structs/functions
 * that were likely inline'd (such as bitreaders). */

//TODO change to streaming decoder

bnnm

// Decompresses CWAV

#include <math.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>


/* Decodes CWav (CompressWave) audio codec, based on original delphi/pascal source code by Ko-Ta:

bnnm

// Decompresses XPCM codec 1/3 (just a test tool for vgmstream).

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>

//#define XPCM_ALT 1

/* Decodes Circus's audio codec, reverse engineered from various .exe.

bnnm

// Decompresses LZ4 found in XNB (just a test tool for vgmstream).

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>

/* Decompresses LZ4 from MonoGame. The original C lib has a lot of modes and configs, but
 * MonoGame only uses the core 'block' part, which is a fairly simple LZ77 (has one command
 * to copy literal and window values, with variable copy lengths).

bnnm

// Decompresses LZX found in XNB (just a test tool for vgmstream, may be of use for XMemCompress testing).
// Needs lzx.c/h, see below

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>

/* lib from https://github.com/sumatrapdfreader/chmlib 
 * which is a cleaned-up version of https://github.com/jedwing/CHMLib */

bnnm

/* Relic's dec.exe decompilation (by bnnm)
 *
 * Decodes .AIF files using Relic Codec (Homeworld 1/2, Warhammer 40000).
 * dec.exe and the codec was presumably written by Janik Joire (he did
 * the Winamp plugin and sound programming).
 *
 * Program should decode nearly identical to the original, with minor +-1 sample
 * differences that probably depend on using the original Intel compiler and flags
 * or minor double/float differences.
 *