diff options
| -rw-r--r-- | MSVC8/mpqlib.vcproj | 4 | ||||
| -rw-r--r-- | MSVC9/mpqlib.vcproj | 4 | ||||
| -rw-r--r-- | Makefile | 5 | ||||
| -rw-r--r-- | extract.c | 2018 | ||||
| -rw-r--r-- | mpq-file.c | 26 | ||||
| -rw-r--r-- | recycle.c | 4 |
6 files changed, 28 insertions, 2033 deletions
diff --git a/MSVC8/mpqlib.vcproj b/MSVC8/mpqlib.vcproj index 74100d9..6721b2c 100644 --- a/MSVC8/mpqlib.vcproj +++ b/MSVC8/mpqlib.vcproj @@ -153,10 +153,6 @@ > </File> <File - RelativePath="..\extract.c" - > - </File> - <File RelativePath="..\hashtab.c" > </File> diff --git a/MSVC9/mpqlib.vcproj b/MSVC9/mpqlib.vcproj index c95c5c1..873b84b 100644 --- a/MSVC9/mpqlib.vcproj +++ b/MSVC9/mpqlib.vcproj @@ -154,10 +154,6 @@ > </File> <File - RelativePath=".\extract.c" - > - </File> - <File RelativePath=".\hashtab.c" > </File> @@ -1,5 +1,5 @@ -CC = gcc -LD = gcc +CC = gcc -m32 +LD = gcc -m32 AR = ar rcs CPPFLAGS = -g -Wall -Werror -D_FILE_OFFSET_BITS=64 -I. @@ -8,7 +8,6 @@ LDFLAGS = -g -lz SOURCE_LIST = \ MPQCryptography.c \ errors.c \ -extract.c \ lookupa.c \ hashtab.c \ recycle.c \ diff --git a/extract.c b/extract.c deleted file mode 100644 index 07035b1..0000000 --- a/extract.c +++ /dev/null @@ -1,2018 +0,0 @@ -/* - * extract.c -- global extracting function for all known file compressions - * in a MPQ archive. - * - * Copyright (C) 2003 Maik Broemme <mbroemme@plusserver.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/* - * Ripped from libmpq and compacted into this one large file. - */ - -#include <stdlib.h> -#include <stdio.h> -#include <zlib.h> -#include <memory.h> - -#include "extract.h" - -#define FALSE 0 -#define TRUE !FALSE - -typedef int (*DECOMPRESS) (char *, int *, const char *, int); -typedef struct { - unsigned long mask; /* Decompression bit */ - DECOMPRESS decompress; /* Decompression function */ -} decompress_table; - -static int pkzip_decompress(char *out_buf, int *out_length, const char *in_buf, int in_length); -static int zlib_decompress(char *out_buf, int *out_length, const char *in_buf, int in_length); -static int huff_decompress(char *out_buf, int *out_length, const char *in_buf, int in_length); -static int adpcm_decompress_mono(char *out_buf, int *out_length, const char *in_buf, int in_length); -static int adpcm_decompress_stereo(char *out_buf, int *out_length, const char *in_buf, int in_length); - -static decompress_table dcmp_table[] = { - {0x08, pkzip_decompress}, /* Decompression with Pkware Data Compression Library */ - {0x02, zlib_decompress}, /* Decompression with the "zlib" library */ - {0x01, huff_decompress}, /* Huffmann decompression */ - {0x80, adpcm_decompress_stereo}, /* adpcm decompression for stereo adpcms */ - {0x40, adpcm_decompress_mono} /* adpcm decompression for mono adpcms */ -}; - -/* - * ADPCM decompression - */ - -typedef union { - unsigned short *pw; - unsigned char *pb; -} byte_and_short; - -/* - * Tables necessary for decompression - */ -static unsigned long adpcm_step_changes[] = { - 0xFFFFFFFF, 0x00000000, 0xFFFFFFFF, 0x00000004, 0xFFFFFFFF, 0x00000002, 0xFFFFFFFF, 0x00000006, - 0xFFFFFFFF, 0x00000001, 0xFFFFFFFF, 0x00000005, 0xFFFFFFFF, 0x00000003, 0xFFFFFFFF, 0x00000007, - 0xFFFFFFFF, 0x00000001, 0xFFFFFFFF, 0x00000005, 0xFFFFFFFF, 0x00000003, 0xFFFFFFFF, 0x00000007, - 0xFFFFFFFF, 0x00000002, 0xFFFFFFFF, 0x00000004, 0xFFFFFFFF, 0x00000006, 0xFFFFFFFF, 0x00000008 -}; - -static unsigned long adpcm_steps[] = { - 0x00000007, 0x00000008, 0x00000009, 0x0000000A, 0x0000000B, 0x0000000C, 0x0000000D, 0x0000000E, - 0x00000010, 0x00000011, 0x00000013, 0x00000015, 0x00000017, 0x00000019, 0x0000001C, 0x0000001F, - 0x00000022, 0x00000025, 0x00000029, 0x0000002D, 0x00000032, 0x00000037, 0x0000003C, 0x00000042, - 0x00000049, 0x00000050, 0x00000058, 0x00000061, 0x0000006B, 0x00000076, 0x00000082, 0x0000008F, - 0x0000009D, 0x000000AD, 0x000000BE, 0x000000D1, 0x000000E6, 0x000000FD, 0x00000117, 0x00000133, - 0x00000151, 0x00000173, 0x00000198, 0x000001C1, 0x000001EE, 0x00000220, 0x00000256, 0x00000292, - 0x000002D4, 0x0000031C, 0x0000036C, 0x000003C3, 0x00000424, 0x0000048E, 0x00000502, 0x00000583, - 0x00000610, 0x000006AB, 0x00000756, 0x00000812, 0x000008E0, 0x000009C3, 0x00000ABD, 0x00000BD0, - 0x00000CFF, 0x00000E4C, 0x00000FBA, 0x0000114C, 0x00001307, 0x000014EE, 0x00001706, 0x00001954, - 0x00001BDC, 0x00001EA5, 0x000021B6, 0x00002515, 0x000028CA, 0x00002CDF, 0x0000315B, 0x0000364B, - 0x00003BB9, 0x000041B2, 0x00004844, 0x00004F7E, 0x00005771, 0x0000602F, 0x000069CE, 0x00007462, - 0x00007FFF -}; - -/* - * Decompress a adpcm file, mono or stereo - * - * Offset: 1500F230 - */ -static int adpcm_decompress(unsigned char *out_buf, int out_length, unsigned char *in_buf, - int in_length, int channels) -{ - byte_and_short out; - byte_and_short in; - unsigned char *in_end = in_buf + in_length; /* End on input buffer */ - unsigned long index; - long nr_array1[2]; - long nr_array2[2]; - int count = 0; - - out.pb = out_buf; - in.pb = in_buf; - nr_array1[0] = 0x2C; - nr_array1[1] = 0x2C; - in.pw++; - - /* - * 15007AD7 - */ - for (count = 0; count < channels; count++) { - long temp; - - temp = *(short *) in.pw++; - nr_array2[count] = temp; - if (out_length < 2) { - return out.pb - out_buf; - } - *out.pw++ = (unsigned short) temp; - out_length -= 2; - } - index = channels - 1; - while (in.pb < in_end) { - unsigned char one_byte = *in.pb++; - - if (channels == 2) { - index = (index == 0) ? 1 : 0; - } - - /* - * Get one byte from input buffer - * 15007B25 - */ - if (one_byte & 0x80) { - /* - * 15007B32 - */ - switch (one_byte & 0x7F) { - case 0: /* 15007B8E */ - if (nr_array1[index] != 0) { - nr_array1[index]--; - } - if (out_length < 2) { - break; - } - *out.pw++ = (unsigned short) nr_array2[index]; - out_length -= 2; - continue; - case 1: /* 15007B72 */ - nr_array1[index] += 8; /* EBX also */ - if (nr_array1[index] > 0x58) { - nr_array1[index] = 0x58; - } - if (channels == 2) { - index = (index == 0) ? 1 : 0; - } - continue; - case 2: - continue; - default: - nr_array1[index] -= 8; - if (nr_array1[index] < 0) { - nr_array1[index] = 0; - } - if (channels != 2) { - continue; - } - index = (index == 0) ? 1 : 0; - continue; - } - } else { - unsigned long temp1 = adpcm_steps[nr_array1[index]]; /* EDI */ - unsigned long temp2 = temp1 >> in_buf[1]; /* ESI */ - long temp3 = nr_array2[index]; /* ECX */ - - if (one_byte & 0x01) { /* EBX = one_byte */ - temp2 += (temp1 >> 0); - } - if (one_byte & 0x02) { - temp2 += (temp1 >> 1); - } - if (one_byte & 0x04) { - temp2 += (temp1 >> 2); - } - if (one_byte & 0x08) { - temp2 += (temp1 >> 3); - } - if (one_byte & 0x10) { - temp2 += (temp1 >> 4); - } - if (one_byte & 0x20) { - temp2 += (temp1 >> 5); - } - if (one_byte & 0x40) { - temp3 -= temp2; - if (temp3 <= (long) 0xFFFF8000) { - temp3 = (long) 0xFFFF8000; - } - } else { - temp3 += temp2; - if (temp3 >= 0x7FFF) { - temp3 = 0x7FFF; - } - } - nr_array2[index] = temp3; - if (out_length < 2) { - break; - } - - temp2 = nr_array1[index]; - one_byte &= 0x1F; - *out.pw++ = (unsigned short) temp3; - out_length -= 2; - temp2 += adpcm_step_changes[one_byte]; - nr_array1[index] = temp2; - - if (nr_array1[index] < 0) { - nr_array1[index] = 0; - } else { - if (nr_array1[index] > 0x58) { - nr_array1[index] = 0x58; - } - } - } - } - return (out.pb - out_buf); -} - -/* - * Huffman decompression - */ - -#define PTR_NOT(ptr) (struct huffman_tree_item *)(~(unsigned long)(ptr)) -#define PTR_PTR(ptr) ((struct huffman_tree_item *)(ptr)) -#define PTR_INT(ptr) (long)(ptr) - -#define INSERT_ITEM 1 -#define SWITCH_ITEMS 2 /* Switch the item1 and item2 */ - -/* - * Input stream for Huffmann decompression - */ -struct huffman_input_stream { - unsigned char *in_buf; /* 00 - Input data */ - unsigned long bit_buf; /* 04 - Input bit buffer */ - unsigned int bits; /* 08 - Number of bits remaining in 'byte' */ -}; - -/* - * Huffmann tree item. - */ -struct huffman_tree_item { - struct huffman_tree_item *next; /* 00 - Pointer to next huffman_tree_item */ - struct huffman_tree_item *prev; /* 04 - Pointer to prev huffman_tree_item (< 0 if none) */ - unsigned long dcmp_byte; /* 08 - Index of this item in item pointer array, decompressed byte - * value */ - unsigned long byte_value; /* 0C - Some byte value */ - struct huffman_tree_item *parent; /* 10 - Pointer to parent huffman_tree_item (NULL if none) */ - struct huffman_tree_item *child; /* 14 - Pointer to child huffman_tree_item */ -}; - -/* - * Structure used for quick decompress. The 'bits' contains - * number of bits and dcmp_byte contains result decompressed byte - * value. After each walk through Huffman tree are filled all entries - * which are multiplies of number of bits loaded from input stream. - * These entries contain number of bits and result value. At the next - * 7 bits is tested this structure first. If corresponding entry found, - * decompression routine will not walk through Huffman tree and - * directly stores output byte to output stream. - */ -struct huffman_decompress { - unsigned long offs00; /* 00 - 1 if resolved */ - unsigned long bits; /* 04 - Bit count */ - union { - unsigned long dcmp_byte; /* 08 - Byte value for decompress (if bitCount <= 7) */ - struct huffman_tree_item *p_item; /* 08 - THTreeItem (if number of bits is greater - * than 7 */ - }; -}; - -/* - * Structure for Huffman tree. - */ -struct huffman_tree { - unsigned long cmp0; /* 0000 - 1 if compression type 0 */ - unsigned long offs0004; /* 0004 - Some flag */ - - struct huffman_tree_item items0008[0x203]; /* 0008 - huffman tree items */ - - /* - * Sometimes used as huffman tree item - */ - struct huffman_tree_item *item3050; /* 3050 - Always NULL (?) */ - struct huffman_tree_item *item3054; /* 3054 - Pointer to huffman_tree_item */ - struct huffman_tree_item *item3058; /* 3058 - Pointer to huffman_tree_item (< 0 if invalid) */ - - /* - * Sometimes used as huffman tree item - */ - struct huffman_tree_item *item305C; /* 305C - Usually NULL */ - struct huffman_tree_item *first; /* 3060 - Pointer to top (first) Huffman tree item */ - struct huffman_tree_item *last; /* 3064 - Pointer to bottom (last) Huffman tree item (< 0 - * if invalid) */ - unsigned long items; /* 3068 - Number of used huffman tree items */ - - struct huffman_tree_item *items306C[0x102]; /* 306C - huffman_tree_item pointer array */ - struct huffman_decompress qd3474[0x80]; /* 3474 - Array for quick decompression */ - - unsigned char table1502A630[]; /* Some table to make struct size flexible */ -}; - -static unsigned char table1502A630[] = { - - /* - * Data for compression type 0x00 - */ - 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, - 0x00, 0x00, - - /* - * Data for compression type 0x01 - */ - 0x54, 0x16, 0x16, 0x0D, 0x0C, 0x08, 0x06, 0x05, 0x06, 0x05, 0x06, 0x03, 0x04, 0x04, 0x03, 0x05, - 0x0E, 0x0B, 0x14, 0x13, 0x13, 0x09, 0x0B, 0x06, 0x05, 0x04, 0x03, 0x02, 0x03, 0x02, 0x02, 0x02, - 0x0D, 0x07, 0x09, 0x06, 0x06, 0x04, 0x03, 0x02, 0x04, 0x03, 0x03, 0x03, 0x03, 0x03, 0x02, 0x02, - 0x09, 0x06, 0x04, 0x04, 0x04, 0x04, 0x03, 0x02, 0x03, 0x02, 0x02, 0x02, 0x02, 0x03, 0x02, 0x04, - 0x08, 0x03, 0x04, 0x07, 0x09, 0x05, 0x03, 0x03, 0x03, 0x03, 0x02, 0x02, 0x02, 0x03, 0x02, 0x02, - 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x02, 0x01, 0x02, 0x02, - 0x06, 0x0A, 0x08, 0x08, 0x06, 0x07, 0x04, 0x03, 0x04, 0x04, 0x02, 0x02, 0x04, 0x02, 0x03, 0x03, - 0x04, 0x03, 0x07, 0x07, 0x09, 0x06, 0x04, 0x03, 0x03, 0x02, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, - 0x0A, 0x02, 0x02, 0x03, 0x02, 0x02, 0x01, 0x01, 0x02, 0x02, 0x02, 0x06, 0x03, 0x05, 0x02, 0x03, - 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x03, 0x01, 0x01, 0x01, - 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x04, 0x04, 0x04, 0x07, 0x09, 0x08, 0x0C, 0x02, - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01, 0x03, - 0x04, 0x01, 0x02, 0x04, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, - 0x04, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x01, 0x01, 0x02, 0x02, 0x02, 0x06, 0x4B, - 0x00, 0x00, - - /* - * Data for compression type 0x02 - */ - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x27, 0x00, 0x00, 0x23, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xFF, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x01, 0x01, 0x06, 0x0E, 0x10, 0x04, - 0x06, 0x08, 0x05, 0x04, 0x04, 0x03, 0x03, 0x02, 0x02, 0x03, 0x03, 0x01, 0x01, 0x02, 0x01, 0x01, - 0x01, 0x04, 0x02, 0x04, 0x02, 0x02, 0x02, 0x01, 0x01, 0x04, 0x01, 0x01, 0x02, 0x03, 0x03, 0x02, - 0x03, 0x01, 0x03, 0x06, 0x04, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x01, 0x02, 0x01, 0x01, - 0x01, 0x29, 0x07, 0x16, 0x12, 0x40, 0x0A, 0x0A, 0x11, 0x25, 0x01, 0x03, 0x17, 0x10, 0x26, 0x2A, - 0x10, 0x01, 0x23, 0x23, 0x2F, 0x10, 0x06, 0x07, 0x02, 0x09, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, - - /* - * Data for compression type 0x03 - */ - 0xFF, 0x0B, 0x07, 0x05, 0x0B, 0x02, 0x02, 0x02, 0x06, 0x02, 0x02, 0x01, 0x04, 0x02, 0x01, 0x03, - 0x09, 0x01, 0x01, 0x01, 0x03, 0x04, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, - 0x05, 0x01, 0x01, 0x01, 0x0D, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x02, 0x01, 0x01, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, 0x01, - 0x0A, 0x04, 0x02, 0x01, 0x06, 0x03, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x03, 0x01, 0x01, 0x01, - 0x05, 0x02, 0x03, 0x04, 0x03, 0x03, 0x03, 0x02, 0x01, 0x01, 0x01, 0x02, 0x01, 0x02, 0x03, 0x03, - 0x01, 0x03, 0x01, 0x01, 0x02, 0x05, 0x01, 0x01, 0x04, 0x03, 0x05, 0x01, 0x03, 0x01, 0x03, 0x03, - 0x02, 0x01, 0x04, 0x03, 0x0A, 0x06, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x02, 0x02, 0x01, 0x0A, 0x02, 0x05, 0x01, 0x01, 0x02, 0x07, 0x02, 0x17, 0x01, 0x05, 0x01, 0x01, - 0x0E, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x06, 0x02, 0x01, 0x04, 0x05, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, - 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x07, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, 0x01, - 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x11, - 0x00, 0x00, - - /* - * Data for compression type 0x04 - */ - 0xFF, 0xFB, 0x98, 0x9A, 0x84, 0x85, 0x63, 0x64, 0x3E, 0x3E, 0x22, 0x22, 0x13, 0x13, 0x18, 0x17, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, - - /* - * Data for compression type 0x05 - */ - 0xFF, 0xF1, 0x9D, 0x9E, 0x9A, 0x9B, 0x9A, 0x97, 0x93, 0x93, 0x8C, 0x8E, 0x86, 0x88, 0x80, 0x82, - 0x7C, 0x7C, 0x72, 0x73, 0x69, 0x6B, 0x5F, 0x60, 0x55, 0x56, 0x4A, 0x4B, 0x40, 0x41, 0x37, 0x37, - 0x2F, 0x2F, 0x27, 0x27, 0x21, 0x21, 0x1B, 0x1C, 0x17, 0x17, 0x13, 0x13, 0x10, 0x10, 0x0D, 0x0D, - 0x0B, 0x0B, 0x09, 0x09, 0x08, 0x08, 0x07, 0x07, 0x06, 0x05, 0x05, 0x04, 0x04, 0x04, 0x19, 0x18, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 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* Data for compression type 0x06 - */ - 0xC3, 0xCB, 0xF5, 0x41, 0xFF, 0x7B, 0xF7, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xBF, 0xCC, 0xF2, 0x40, 0xFD, 0x7C, 0xF7, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x7A, 0x46, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, - - /* - * Data for compression type 0x07 - */ - 0xC3, 0xD9, 0xEF, 0x3D, 0xF9, 0x7C, 0xE9, 0x1E, 0xFD, 0xAB, 0xF1, 0x2C, 0xFC, 0x5B, 0xFE, 0x17, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xBD, 0xD9, 0xEC, 0x3D, 0xF5, 0x7D, 0xE8, 0x1D, 0xFB, 0xAE, 0xF0, 0x2C, 0xFB, 0x5C, 0xFF, 0x18, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x70, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, - - /* - * Data for compression type 0x08 - */ - 0xBA, 0xC5, 0xDA, 0x33, 0xE3, 0x6D, 0xD8, 0x18, 0xE5, 0x94, 0xDA, 0x23, 0xDF, 0x4A, 0xD1, 0x10, - 0xEE, 0xAF, 0xE4, 0x2C, 0xEA, 0x5A, 0xDE, 0x15, 0xF4, 0x87, 0xE9, 0x21, 0xF6, 0x43, 0xFC, 0x12, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xB0, 0xC7, 0xD8, 0x33, 0xE3, 0x6B, 0xD6, 0x18, 0xE7, 0x95, 0xD8, 0x23, 0xDB, 0x49, 0xD0, 0x11, - 0xE9, 0xB2, 0xE2, 0x2B, 0xE8, 0x5C, 0xDD, 0x15, 0xF1, 0x87, 0xE7, 0x20, 0xF7, 0x44, 0xFF, 0x13, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x5F, 0x9E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00 -}; - -/* - * Gets previous Huffman tree item (?) - */ -static struct huffman_tree_item *huff_get_prev_item(struct huffman_tree_item *hi, long value) -{ - if (PTR_INT(hi->prev) < 0) { - return PTR_NOT(hi->prev); - } - if (value < 0) { - value = hi - hi->next->prev; - } - return hi->prev + value; -} - -/* - * 1500BC90 - */ -static void huff_remove_item(struct huffman_tree_item *hi) -{ - struct huffman_tree_item *temp; /* EDX */ - - if (hi->next != NULL) { - temp = hi->prev; - if (PTR_INT(temp) <= 0) { - temp = PTR_NOT(temp); - } else { - temp += (hi - hi->next->prev); - } - temp->next = hi->next; - hi->next->prev = hi->prev; - hi->next = hi->prev = NULL; - } -} - -static void huff_insert_item(struct huffman_tree_item **p_item, - struct huffman_tree_item *item, unsigned long where, - struct huffman_tree_item *item2) -{ - struct huffman_tree_item *next = item->next; /* EDI - next to the first item */ - struct huffman_tree_item *prev = item->prev; /* ESI - prev to the first item */ - struct huffman_tree_item *prev2; /* Pointer to previous item */ - long next2; /* Pointer to the next item */ - - /* - * The same code like in mpq_huff_remove_item(); - */ - if (next != 0) { /* If the first item already has next one */ - if (PTR_INT(prev) < 0) { - prev = PTR_NOT(prev); - } else { - prev += (item - next->prev); - } - - /* - * 150083C1 - * Remove the item from the tree - */ - prev->next = next; - next->prev = prev; - - /* - * Invalidate 'prev' and 'next' pointer - */ - item->next = 0; - item->prev = 0; - } - - if (item2 == NULL) { /* EDX - If the second item is not entered, */ - item2 = PTR_PTR(&p_item[1]); /* take the first tree item */ - } - - switch (where) { - case SWITCH_ITEMS: /* Switch the two items */ - item->next = item2->next; /* item2->next (Pointer to pointer to first) */ - item->prev = item2->next->prev; - item2->next->prev = item; - item2->next = item; /* Set the first item */ - return; - case INSERT_ITEM: /* Insert as the last item */ - item->next = item2; /* Set next item (or pointer to pointer to first item) */ - item->prev = item2->prev; /* Set prev item (or last item in the tree) */ - next2 = PTR_INT(p_item[0]); /* Usually NULL */ - prev2 = item2->prev; /* Prev item to the second (or last tree item) */ - if (PTR_INT(prev2) < 0) { - prev2 = PTR_NOT(prev); - prev2->next = item; - item2->prev = item; /* Next after last item */ - return; - } - if (next2 < 0) { - next2 = item2 - item2->next->prev; - } - prev2 += next2; - prev2->next = item; - item2->prev = item; /* Set the next/last item */ - return; - default: - return; - } -} - -/* - * Builds Huffman tree. Called with the first 8 bits loaded from input stream. - */ -static void huff_build_tree(struct huffman_tree *ht, unsigned int cmp_type) -{ - unsigned long max_byte; /* [ESP+10] - The greatest character found in table */ - unsigned char *byte_array; /* [ESP+1C] - Pointer to unsigned char in table1502A630 */ - unsigned long i; /* egcs in linux doesn't like multiple for loops without an - * explicit i */ - unsigned int found; /* Thats needed to replace the goto stuff from original source :) */ - struct huffman_tree_item **p_item; /* [ESP+14] - Pointer to Huffman tree item pointer array */ - struct huffman_tree_item *child1; - - /* - * Loop while pointer has a negative value. - */ - while (PTR_INT(ht->last) > 0) { /* ESI - Last entry */ - struct huffman_tree_item *temp; /* EAX */ - - if (ht->last->next != NULL) { /* ESI->next */ - huff_remove_item(ht->last); - } - ht->item3058 = PTR_PTR(&ht->item3054); /* [EDI+4] */ - ht->last->prev = ht->item3058; /* EAX */ - temp = huff_get_prev_item(PTR_PTR(&ht->item3054), PTR_INT(&ht->item3050)); - temp->next = ht->last; - ht->item3054 = ht->last; - } - - /* - * Clear all pointers in huffman tree item array. - */ - memset(ht->items306C, 0, sizeof(ht->items306C)); - - max_byte = 0; /* Greatest character found init to zero. */ - p_item = (struct huffman_tree_item **) &ht->items306C; /* Pointer to current entry in - * huffman tree item pointer array */ - - /* - * Ensure we have low 8 bits only - */ - cmp_type &= 0xFF; - byte_array = table1502A630 + cmp_type * 258; /* EDI also */ - - for (i = 0; i < 0x100; i++, p_item++) { - struct huffman_tree_item *item = ht->item3058; /* Item to be created */ - struct huffman_tree_item *p_item3 = ht->item3058; - unsigned char one_byte = byte_array[i]; - - /* - * Skip all the bytes which are zero. - */ - if (byte_array[i] == 0) { - continue; - } - - /* - * If not valid pointer, take the first available item in the array. - */ - if (PTR_INT(item) <= 0) { - item = &ht->items0008[ht->items++]; - } - - /* - * Insert this item as the top of the tree. - */ - huff_insert_item(&ht->item305C, item, SWITCH_ITEMS, NULL); - - item->parent = NULL; /* Invalidate child and parent */ - item->child = NULL; - *p_item = item; /* Store pointer into pointer array */ - - item->dcmp_byte = i; /* Store counter */ - item->byte_value = one_byte; /* Store byte value */ - if (one_byte >= max_byte) { - max_byte = one_byte; - continue; - } - - /* - * Find the first item which has byte value greater than current one byte - */ - found = 0; - if (PTR_INT((p_item3 = ht->last)) > 0) { /* EDI - Pointer to the last item */ - - /* - * 15006AF7 - */ - if (p_item3 != NULL) { - do { /* 15006AFB */ - if (p_item3->byte_value >= one_byte) { - found = 1; - break; - } - p_item3 = p_item3->prev; - } while (PTR_INT(p_item3) > 0); - } - } - - if (found == 0) { - p_item3 = NULL; - } - - /* - * 15006B09 - */ - if (item->next != NULL) { - huff_remove_item(item); - } - - /* - * 15006B15 - */ - if (p_item3 == NULL) { - p_item3 = PTR_PTR(&ht->first); - } - - /* - * 15006B1F - */ - item->next = p_item3->next; - item->prev = p_item3->next->prev; - p_item3->next->prev = item; - p_item3->next = item; - } - - /* - * 15006B4A - */ - for (; i < 0x102; i++) { - struct huffman_tree_item **p_item2 = &ht->items306C[i]; /* EDI */ - - /* - * 15006B59 - */ - struct huffman_tree_item *item2 = ht->item3058; /* ESI */ - - if (PTR_INT(item2) <= 0) { - item2 = &ht->items0008[ht->items++]; - } - huff_insert_item(&ht->item305C, item2, INSERT_ITEM, NULL); - - /* - * 15006B89 - */ - item2->dcmp_byte = i; - item2->byte_value = 1; - item2->parent = NULL; - item2->child = NULL; - *p_item2++ = item2; - } - - /* - * 15006BAA - */ - if (PTR_INT((child1 = ht->last)) > 0) { /* EDI - last item (first child to item */ - struct huffman_tree_item *child2; /* EBP */ - struct huffman_tree_item *item; /* ESI */ - - /* - * 15006BB8 - */ - while (PTR_INT((child2 = child1->prev)) > 0) { - if (PTR_INT((item = ht->item3058)) <= 0) { - item = &ht->items0008[ht->items++]; - } - /* - * 15006BE3 - */ - huff_insert_item(&ht->item305C, item, SWITCH_ITEMS, NULL); - - /* - * 15006BF3 - */ - item->parent = NULL; - item->child = NULL; - - /* - * EDX = child2->byte_value + child1->byte_value; - * EAX = child1->byte_value; - * ECX = max_byte; The greatest character (0xFF usually) - */ - item->byte_value = child1->byte_value + child2->byte_value; /* 0x02 */ - item->child = child1; /* Prev item in the */ - child1->parent = item; - child2->parent = item; - - /* - * EAX = item->byte_value; - */ - if (item->byte_value >= max_byte) { - max_byte = item->byte_value; - } else { - struct huffman_tree_item *p_item2 = child2->prev; /* EDI */ - - found = 0; - if (PTR_INT(p_item2) > 0) { - - /* - * 15006C2D - */ - do { - if (p_item2->byte_value >= item->byte_value) { - found = 1; - break; - } - p_item2 = p_item2->prev; - } while (PTR_INT(p_item2) > 0); - } - if (found == 0) { - p_item2 = NULL; - } - if (item->next != 0) { - struct huffman_tree_item *temp4 = huff_get_prev_item(item, -1); - - temp4->next = item->next; /* The first item changed */ - item->next->prev = item->prev; /* First->prev changed to negative value */ - item->next = NULL; - item->prev = NULL; - } - - /* - * 15006C62 - */ - if (p_item2 == NULL) { - p_item2 = PTR_PTR(&ht->first); - } - item->next = p_item2->next; /* Set item with 0x100 byte value */ - item->prev = p_item2->next->prev; /* Set item with 0x17 byte value */ - p_item2->next->prev = item; /* Changed prev of item with */ - p_item2->next = item; - } - - /* - * 15006C7B - */ - if (PTR_INT((child1 = child2->prev)) <= 0) { - break; - } - } - } - - /* - * 15006C88 - */ - ht->offs0004 = 1; -} - -/* - * Gets the whole byte from the input stream. - */ -static unsigned long huff_get_8bits(struct huffman_input_stream *is) -{ - unsigned long one_byte; - - if (is->bits <= 8) { - is->bit_buf |= *(unsigned short *) is->in_buf << is->bits; - is->in_buf += sizeof(unsigned short); - is->bits += 16; - } - - one_byte = (is->bit_buf & 0xFF); - is->bit_buf >>= 8; - is->bits -= 8; - - return one_byte; -} - -/* - * Gets 7 bits from the stream. - */ -static unsigned long huff_get_7bits(struct huffman_input_stream *is) -{ - if (is->bits <= 7) { - is->bit_buf |= *(unsigned short *) is->in_buf << is->bits; - is->in_buf += sizeof(unsigned short); - is->bits += 16; - } - - /* - * Get 7 bits from input stream. - */ - return (is->bit_buf & 0x7F); -} - -/* - * Gets one bit from input stream. - */ -static unsigned long huff_get_bit(struct huffman_input_stream *is) -{ - unsigned long bit = (is->bit_buf & 1); - - is->bit_buf >>= 1; - if (--is->bits == 0) { - is->bit_buf = *(unsigned long *) is->in_buf; - is->in_buf += sizeof(unsigned long); - is->bits = 32; - } - return bit; -} - -static struct huffman_tree_item *huff_call1500E740(struct huffman_tree *ht, unsigned int value) -{ - struct huffman_tree_item *p_item1 = ht->item3058; /* EDX */ - struct huffman_tree_item *p_item2; /* EAX */ - struct huffman_tree_item *p_next; - struct huffman_tree_item *p_prev; - struct huffman_tree_item **pp_item; - - if (PTR_INT(p_item1) <= 0 || (p_item2 = p_item1) == NULL) { - if ((p_item2 = &ht->items0008[ht->items++]) != NULL) { - p_item1 = p_item2; - } else { - p_item1 = ht->first; - } - } else { - p_item1 = p_item2; - } - - p_next = p_item1->next; - if (p_next != NULL) { - p_prev = p_item1->prev; - if (PTR_INT(p_prev) <= 0) { - p_prev = PTR_NOT(p_prev); - } else { - p_prev += (p_item1 - p_item1->next->prev); - } - - p_prev->next = p_next; - p_next->prev = p_prev; - p_item1->next = NULL; - p_item1->prev = NULL; - } - pp_item = &ht->first; /* ESI */ - if (value > 1) { - - /* - * ECX = ht->first->next; - */ - p_item1->next = *pp_item; - p_item1->prev = (*pp_item)->prev; - - (*pp_item)->prev = p_item2; - *pp_item = p_item1; - - p_item2->parent = NULL; - p_item2->child = NULL; - } else { - p_item1->next = (struct huffman_tree_item *) pp_item; - p_item1->prev = pp_item[1]; - /* - * EDI = ht->item305C; - */ - p_prev = pp_item[1]; /* ECX */ - if (p_prev <= 0) { - p_prev = PTR_NOT(p_prev); - p_prev->next = p_item1; - p_prev->prev = p_item2; - - p_item2->parent = NULL; - p_item2->child = NULL; - } else { - if (PTR_INT(ht->item305C) < 0) { - p_prev += (struct huffman_tree_item *) pp_item - (*pp_item)->prev; - } else { - p_prev += PTR_INT(ht->item305C); - } - - p_prev->next = p_item1; - pp_item[1] = p_item2; - p_item2->parent = NULL; - p_item2->child = NULL; - } - } - return p_item2; -} - -static void huff_call1500E820(struct huffman_tree *ht, struct huffman_tree_item *p_item) -{ - struct huffman_tree_item *p_item1; /* EDI */ - struct huffman_tree_item *p_item2 = NULL; /* EAX */ - struct huffman_tree_item *p_item3; /* EDX */ - struct huffman_tree_item *p_prev; /* EBX */ - - for (; p_item != NULL; p_item = p_item->parent) { - p_item->byte_value++; - - for (p_item1 = p_item;; p_item1 = p_prev) { - p_prev = p_item1->prev; - if (PTR_INT(p_prev) <= 0) { - p_prev = NULL; - break; - } - if (p_prev->byte_value >= p_item->byte_value) { - break; - } - } - - if (p_item1 == p_item) { - continue; - } - - if (p_item1->next != NULL) { - p_item2 = huff_get_prev_item(p_item1, -1); - p_item2->next = p_item1->next; - p_item1->next->prev = p_item1->prev; - p_item1->next = NULL; - p_item1->prev = NULL; - } - p_item2 = p_item->next; - p_item1->next = p_item2; - p_item1->prev = p_item2->prev; - p_item2->prev = p_item1; - p_item->next = p_item1; - if ((p_item2 = p_item1) != NULL) { - p_item2 = huff_get_prev_item(p_item, -1); - p_item2->next = p_item->next; - p_item->next->prev = p_item->prev; - p_item->next = NULL; - p_item->prev = NULL; - } - - if (p_prev == NULL) { - p_prev = PTR_PTR(&ht->first); - } - p_item2 = p_prev->next; - p_item->next = p_item2; - p_item->prev = p_item2->prev; - p_item2->prev = p_item; - p_prev->next = p_item; - - p_item3 = p_item1->parent->child; - p_item2 = p_item->parent; - if (p_item2->child == p_item) { - p_item2->child = p_item1; - } - - if (p_item3 == p_item1) { - p_item1->parent->child = p_item; - } - - p_item2 = p_item->parent; - p_item->parent = p_item1->parent; - p_item1->parent = p_item2; - ht->offs0004++; - } -} - -static int huff_do_decompress(struct huffman_tree *ht, struct huffman_input_stream *is, - unsigned char *out_buf, unsigned int out_length) -{ - unsigned int n8bits; /* 8 bits loaded from input stream */ - unsigned int n7bits; /* 7 bits loaded from input stream */ - unsigned int found; /* Thats needed to replace the goto stuff from original source :) */ - unsigned int dcmp_byte = 0; - unsigned long bit_count; - struct huffman_decompress *qd; - unsigned int has_qd; /* Can we use quick decompression? */ - struct huffman_tree_item *p_item1; - struct huffman_tree_item *p_item2; - unsigned char *out_pos = out_buf; - - /* - * Test the output length. Must not be non zero. - */ - if (out_length == 0) { - return 0; - } - - /* - * Get the compression type from the input stream. - */ - n8bits = huff_get_8bits(is); - - /* - * Build the Huffman tree - */ - huff_build_tree(ht, n8bits); - ht->cmp0 = (n8bits == 0) ? TRUE : FALSE; - - for (;;) { - n7bits = huff_get_7bits(is); /* Get 7 bits from input stream */ - - /* - * Try to use quick decompression. Check huffman_decompress array for corresponding item. - * If found, use the result byte instead. - */ - qd = &ht->qd3474[n7bits]; - - /* - * If there is a quick-pass possible (ebx) - */ - has_qd = (qd->offs00 >= ht->offs0004) ? TRUE : FALSE; - - /* - * If we can use quick decompress, use it. - */ - if (has_qd) { - found = 0; - if (qd->bits > 7) { - is->bit_buf >>= 7; - is->bits -= 7; - p_item1 = qd->p_item; - found = 1; - } - if (found == 0) { - is->bit_buf >>= qd->bits; - is->bits -= qd->bits; - dcmp_byte = qd->dcmp_byte; - } - } else { - found = 1; - p_item1 = ht->first->next->prev; - if (PTR_INT(p_item1) <= 0) { - p_item1 = NULL; - } - } - - if (found == 1) { - bit_count = 0; - p_item2 = NULL; - do { - p_item1 = p_item1->child; /* Move down by one level */ - if (huff_get_bit(is)) { /* If current bit is set, move to previous */ - p_item1 = p_item1->prev; - } - if (++bit_count == 7) { /* If we are at 7th bit, save current huffman tree item. */ - p_item2 = p_item1; - } - } while (p_item1->child != NULL); /* Walk until tree has no deeper level */ - - if (has_qd == FALSE) { - if (bit_count > 7) { - qd->offs00 = ht->offs0004; - qd->bits = bit_count; - qd->p_item = p_item2; - } else { - unsigned long index = n7bits & (0xFFFFFFFF >> (32 - bit_count)); - unsigned long add = (1 << bit_count); - - for (qd = &ht->qd3474[index]; index <= 0x7F; index += add, qd += add) { - qd->offs00 = ht->offs0004; - qd->bits = bit_count; - qd->dcmp_byte = p_item1->dcmp_byte; - } - } - } - dcmp_byte = p_item1->dcmp_byte; - } - - if (dcmp_byte == 0x101) { /* Huffman tree needs to be modified */ - n8bits = huff_get_8bits(is); - p_item1 = (ht->last <= 0) ? NULL : ht->last; - - p_item2 = huff_call1500E740(ht, 1); - p_item2->parent = p_item1; - p_item2->dcmp_byte = p_item1->dcmp_byte; - p_item2->byte_value = p_item1->byte_value; - ht->items306C[p_item2->dcmp_byte] = p_item2; - - p_item2 = huff_call1500E740(ht, 1); - p_item2->parent = p_item1; - p_item2->dcmp_byte = n8bits; - p_item2->byte_value = 0; - ht->items306C[p_item2->dcmp_byte] = p_item2; - - p_item1->child = p_item2; - huff_call1500E820(ht, p_item2); - if (ht->cmp0 == 0) { - huff_call1500E820(ht, ht->items306C[n8bits]); - } - dcmp_byte = n8bits; - } - - if (dcmp_byte == 0x100) { - break; - } - - *out_pos++ = (unsigned char) dcmp_byte; - if (--out_length == 0) { - break; - } - if (ht->cmp0) { - huff_call1500E820(ht, ht->items306C[dcmp_byte]); - } - } - return (out_pos - out_buf); -} - -static void huff_init_tree(struct huffman_tree *ht, struct huffman_tree_item *hi) -{ - int count; - - /* - * Clear links for all the items in the tree - */ - for (hi = ht->items0008, count = 0x203; count != 0; hi++, count--) { - hi->next = hi->prev = NULL; - } - - ht->item3050 = NULL; - ht->item3054 = PTR_PTR(&ht->item3054); - ht->item3058 = PTR_NOT(ht->item3054); - - ht->item305C = NULL; - ht->first = PTR_PTR(&ht->first); - ht->last = PTR_NOT(ht->first); - - ht->offs0004 = 1; - ht->items = 0; - - /* - * Clear all huffman_decompress items. Do this only if preparing for decompression - */ - for (count = 0; count < sizeof(ht->qd3474) / sizeof(struct huffman_decompress); count++) { - ht->qd3474[count].offs00 = 0; - } -} - -/* - * PKWARE's compression. - */ - -#define PKZIP_EXP_BUFFER_SIZE 12596 /* Size of decompress buffer */ -#define PKZIP_CMP_BINARY 0 /* Binary compression */ -#define PKZIP_CMP_ASCII 1 /* Ascii compression */ -#define PKZIP_CMP_NO_ERROR 0 -#define PKZIP_CMP_INV_DICTSIZE 1 -#define PKZIP_CMP_INV_MODE 2 -#define PKZIP_CMP_BAD_DATA 3 -#define PKZIP_CMP_ABORT 4 - -/* - * Compression structure (size: 12596 bytes on x86-32) - */ -#ifdef _MSC_VER -#pragma pack(1) -#endif -typedef struct { - unsigned long offs0000; /* 0000 */ - unsigned long cmp_type; /* 0004 - Compression type (PZIP_CMP_BINARY or - * PKZIP_CMP_ASCII) */ - unsigned long out_pos; /* 0008 - Position in output buffer */ - unsigned long dsize_bits; /* 000C - Dict size (4, 5, 6 for 0x400, 0x800, 0x1000) */ - unsigned long dsize_mask; /* 0010 - Dict size bitmask (0x0F, 0x1F, 0x3F for 0x400, 0x800, - * 0x1000) */ - unsigned long bit_buf; /* 0014 - 16-bit buffer for processing input data */ - unsigned long extra_bits; /* 0018 - Number of extra (above 8) bits in bit buffer */ - unsigned int in_pos; /* 001C - Position in in_buf */ - unsigned long in_bytes; /* 0020 - Number of bytes in input buffer */ - void *param; /* 0024 - Custom parameter */ - unsigned int (*read_buf) (char *buf, unsigned int *size, void *param); /* 0028 */ - void (*write_buf) (const char *buf, unsigned int *size, void *param); /* 002C */ - unsigned char out_buf[0x2000]; /* 0030 - Output circle buffer. Starting position is 0x1000 - */ - unsigned char offs_2030[0x204]; /* 2030 - ??? */ - unsigned char in_buf[0x800]; /* 2234 - Buffer for data to be decompressed */ - unsigned char pos1[0x100]; /* 2A34 - Positions in buffers */ - unsigned char pos2[0x100]; /* 2B34 - Positions in buffers */ - unsigned char offs_2c34[0x100]; /* 2C34 - Buffer for */ - unsigned char offs_2d34[0x100]; /* 2D34 - Buffer for */ - unsigned char offs_2e34[0x80]; /* 2EB4 - Buffer for */ - unsigned char offs_2eb4[0x100]; /* 2EB4 - Buffer for */ - unsigned char bits_asc[0x100]; /* 2FB4 - Buffer for */ - unsigned char dist_bits[0x40]; /* 30B4 - Numbers of bytes to skip copied block length */ - unsigned char slen_bits[0x10]; /* 30F4 - Numbers of bits for skip copied block length */ - unsigned char clen_bits[0x10]; /* 3104 - Number of valid bits for copied block */ - unsigned short len_base[0x10]; /* 3114 - Buffer for */ -} -#ifndef _MSC_VER -__attribute__ ((packed)) -#endif -pkzip_data_cmp; - -typedef struct { - const char *in_buf; /* Pointer to input data buffer */ - unsigned int in_pos; /* Current offset in input data buffer */ - int in_bytes; /* Number of bytes in the input buffer */ - char *out_buf; /* Pointer to output data buffer */ - unsigned int out_pos; /* Position in the output buffer */ - int max_out; /* Maximum number of bytes in the output buffer */ -} pkzip_data; -/* - * Tables - */ -static unsigned char pkzip_dist_bits[] = { - 0x02, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, - 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, - 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, - 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 -}; - -static unsigned char pkzip_dist_code[] = { - 0x03, 0x0D, 0x05, 0x19, 0x09, 0x11, 0x01, 0x3E, 0x1E, 0x2E, 0x0E, 0x36, 0x16, 0x26, 0x06, 0x3A, - 0x1A, 0x2A, 0x0A, 0x32, 0x12, 0x22, 0x42, 0x02, 0x7C, 0x3C, 0x5C, 0x1C, 0x6C, 0x2C, 0x4C, 0x0C, - 0x74, 0x34, 0x54, 0x14, 0x64, 0x24, 0x44, 0x04, 0x78, 0x38, 0x58, 0x18, 0x68, 0x28, 0x48, 0x08, - 0xF0, 0x70, 0xB0, 0x30, 0xD0, 0x50, 0x90, 0x10, 0xE0, 0x60, 0xA0, 0x20, 0xC0, 0x40, 0x80, 0x00 -}; - -static unsigned char pkzip_clen_bits[] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 -}; - -static unsigned short pkzip_len_base[] = { - 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, - 0x0008, 0x000A, 0x000E, 0x0016, 0x0026, 0x0046, 0x0086, 0x0106 -}; - -static unsigned char pkzip_slen_bits[] = { - 0x03, 0x02, 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x07, 0x07 -}; - -static unsigned char pkzip_len_code[] = { - 0x05, 0x03, 0x01, 0x06, 0x0A, 0x02, 0x0C, 0x14, 0x04, 0x18, 0x08, 0x30, 0x10, 0x20, 0x40, 0x00 -}; - -static unsigned char pkzip_bits_asc[] = { - 0x0B, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x08, 0x07, 0x0C, 0x0C, 0x07, 0x0C, 0x0C, - 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0D, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, - 0x04, 0x0A, 0x08, 0x0C, 0x0A, 0x0C, 0x0A, 0x08, 0x07, 0x07, 0x08, 0x09, 0x07, 0x06, 0x07, 0x08, - 0x07, 0x06, 0x07, 0x07, 0x07, 0x07, 0x08, 0x07, 0x07, 0x08, 0x08, 0x0C, 0x0B, 0x07, 0x09, 0x0B, - 0x0C, 0x06, 0x07, 0x06, 0x06, 0x05, 0x07, 0x08, 0x08, 0x06, 0x0B, 0x09, 0x06, 0x07, 0x06, 0x06, - 0x07, 0x0B, 0x06, 0x06, 0x06, 0x07, 0x09, 0x08, 0x09, 0x09, 0x0B, 0x08, 0x0B, 0x09, 0x0C, 0x08, - 0x0C, 0x05, 0x06, 0x06, 0x06, 0x05, 0x06, 0x06, 0x06, 0x05, 0x0B, 0x07, 0x05, 0x06, 0x05, 0x05, - 0x06, 0x0A, 0x05, 0x05, 0x05, 0x05, 0x08, 0x07, 0x08, 0x08, 0x0A, 0x0B, 0x0B, 0x0C, 0x0C, 0x0C, - 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, - 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, - 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, - 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, - 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, - 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, 0x0C, - 0x0D, 0x0C, 0x0D, 0x0D, 0x0D, 0x0C, 0x0D, 0x0D, 0x0D, 0x0C, 0x0D, 0x0D, 0x0D, 0x0D, 0x0C, 0x0D, - 0x0D, 0x0D, 0x0C, 0x0C, 0x0C, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D, 0x0D -}; - -static unsigned short pkzip_code_asc[] = { - 0x0490, 0x0FE0, 0x07E0, 0x0BE0, 0x03E0, 0x0DE0, 0x05E0, 0x09E0, - 0x01E0, 0x00B8, 0x0062, 0x0EE0, 0x06E0, 0x0022, 0x0AE0, 0x02E0, - 0x0CE0, 0x04E0, 0x08E0, 0x00E0, 0x0F60, 0x0760, 0x0B60, 0x0360, - 0x0D60, 0x0560, 0x1240, 0x0960, 0x0160, 0x0E60, 0x0660, 0x0A60, - 0x000F, 0x0250, 0x0038, 0x0260, 0x0050, 0x0C60, 0x0390, 0x00D8, - 0x0042, 0x0002, 0x0058, 0x01B0, 0x007C, 0x0029, 0x003C, 0x0098, - 0x005C, 0x0009, 0x001C, 0x006C, 0x002C, 0x004C, 0x0018, 0x000C, - 0x0074, 0x00E8, 0x0068, 0x0460, 0x0090, 0x0034, 0x00B0, 0x0710, - 0x0860, 0x0031, 0x0054, 0x0011, 0x0021, 0x0017, 0x0014, 0x00A8, - 0x0028, 0x0001, 0x0310, 0x0130, 0x003E, 0x0064, 0x001E, 0x002E, - 0x0024, 0x0510, 0x000E, 0x0036, 0x0016, 0x0044, 0x0030, 0x00C8, - 0x01D0, 0x00D0, 0x0110, 0x0048, 0x0610, 0x0150, 0x0060, 0x0088, - 0x0FA0, 0x0007, 0x0026, 0x0006, 0x003A, 0x001B, 0x001A, 0x002A, - 0x000A, 0x000B, 0x0210, 0x0004, 0x0013, 0x0032, 0x0003, 0x001D, - 0x0012, 0x0190, 0x000D, 0x0015, 0x0005, 0x0019, 0x0008, 0x0078, - 0x00F0, 0x0070, 0x0290, 0x0410, 0x0010, 0x07A0, 0x0BA0, 0x03A0, - 0x0240, 0x1C40, 0x0C40, 0x1440, 0x0440, 0x1840, 0x0840, 0x1040, - 0x0040, 0x1F80, 0x0F80, 0x1780, 0x0780, 0x1B80, 0x0B80, 0x1380, - 0x0380, 0x1D80, 0x0D80, 0x1580, 0x0580, 0x1980, 0x0980, 0x1180, - 0x0180, 0x1E80, 0x0E80, 0x1680, 0x0680, 0x1A80, 0x0A80, 0x1280, - 0x0280, 0x1C80, 0x0C80, 0x1480, 0x0480, 0x1880, 0x0880, 0x1080, - 0x0080, 0x1F00, 0x0F00, 0x1700, 0x0700, 0x1B00, 0x0B00, 0x1300, - 0x0DA0, 0x05A0, 0x09A0, 0x01A0, 0x0EA0, 0x06A0, 0x0AA0, 0x02A0, - 0x0CA0, 0x04A0, 0x08A0, 0x00A0, 0x0F20, 0x0720, 0x0B20, 0x0320, - 0x0D20, 0x0520, 0x0920, 0x0120, 0x0E20, 0x0620, 0x0A20, 0x0220, - 0x0C20, 0x0420, 0x0820, 0x0020, 0x0FC0, 0x07C0, 0x0BC0, 0x03C0, - 0x0DC0, 0x05C0, 0x09C0, 0x01C0, 0x0EC0, 0x06C0, 0x0AC0, 0x02C0, - 0x0CC0, 0x04C0, 0x08C0, 0x00C0, 0x0F40, 0x0740, 0x0B40, 0x0340, - 0x0300, 0x0D40, 0x1D00, 0x0D00, 0x1500, 0x0540, 0x0500, 0x1900, - 0x0900, 0x0940, 0x1100, 0x0100, 0x1E00, 0x0E00, 0x0140, 0x1600, - 0x0600, 0x1A00, 0x0E40, 0x0640, 0x0A40, 0x0A00, 0x1200, 0x0200, - 0x1C00, 0x0C00, 0x1400, 0x0400, 0x1800, 0x0800, 0x1000, 0x0000 -}; - -/* - * Local functions - */ -static void pkzip_gen_decode_tabs(long count, unsigned char *bits, unsigned char *code, unsigned char *buf2) -{ - long i; - - for (i = count - 1; i >= 0; i--) { /* EBX - count */ - unsigned long idx1 = code[i]; - unsigned long idx2 = 1 << bits[i]; - - do { - buf2[idx1] = (unsigned char) i; - idx1 += idx2; - } while (idx1 < 0x100); - } -} - -static void pkzip_gen_asc_tabs(pkzip_data_cmp * mpq_pkzip) -{ - unsigned short *code_asc = &pkzip_code_asc[0xFF]; - unsigned long acc, add; - unsigned short count; - - for (count = 0x00FF; code_asc >= pkzip_code_asc; code_asc--, count--) { - unsigned char *bits_asc = mpq_pkzip->bits_asc + count; - unsigned char bits_tmp = *bits_asc; - - if (bits_tmp <= 8) { - add = (1 << bits_tmp); - acc = *code_asc; - do { - mpq_pkzip->offs_2c34[acc] = (unsigned char) count; - acc += add; - } while (acc < 0x100); - } else { - if ((acc = (*code_asc & 0xFF)) != 0) { - mpq_pkzip->offs_2c34[acc] = 0xFF; - if (*code_asc & 0x3F) { - bits_tmp -= 4; - *bits_asc = bits_tmp; - add = (1 << bits_tmp); - acc = *code_asc >> 4; - do { - mpq_pkzip->offs_2d34[acc] = (unsigned char) count; - acc += add; - } while (acc < 0x100); - } else { - bits_tmp -= 6; - *bits_asc = bits_tmp; - add = (1 << bits_tmp); - acc = *code_asc >> 6; - do { - mpq_pkzip->offs_2e34[acc] = (unsigned char) count; - acc += add; - } while (acc < 0x80); - } - } else { - bits_tmp -= 8; - *bits_asc = bits_tmp; - add = (1 << bits_tmp); - acc = *code_asc >> 8; - do { - mpq_pkzip->offs_2eb4[acc] = (unsigned char) count; - acc += add; - } while (acc < 0x100); - } - } - } -} - -/* - * Skips given number of bits in bit buffer. Result is stored in mpq_pkzip->bit_buf - * If no data in input buffer, returns true - */ -static int pkzip_skip_bits(pkzip_data_cmp * mpq_pkzip, unsigned long bits) -{ - /* - * If number of bits required is less than number of (bits in the buffer) ? - */ - if (bits <= mpq_pkzip->extra_bits) { - mpq_pkzip->extra_bits -= bits; - mpq_pkzip->bit_buf >>= bits; - return 0; - } - - /* - * Load input buffer if necessary - */ - mpq_pkzip->bit_buf >>= mpq_pkzip->extra_bits; - if (mpq_pkzip->in_pos == mpq_pkzip->in_bytes) { - mpq_pkzip->in_pos = sizeof(mpq_pkzip->in_buf); - if ((mpq_pkzip->in_bytes = - mpq_pkzip->read_buf((char *) mpq_pkzip->in_buf, &mpq_pkzip->in_pos, - mpq_pkzip->param)) == 0) { - return 1; - } - mpq_pkzip->in_pos = 0; - } - - /* - * Update bit buffer - */ - mpq_pkzip->bit_buf |= (mpq_pkzip->in_buf[mpq_pkzip->in_pos++] << 8); - mpq_pkzip->bit_buf >>= (bits - mpq_pkzip->extra_bits); - mpq_pkzip->extra_bits = (mpq_pkzip->extra_bits - bits) + 8; - return 0; -} - -/* - * Decompress the imploded data using coded literals. - * Returns: 0x000 - 0x0FF : One byte from compressed file. - * 0x100 - 0x305 : Copy previous block (0x100 = 1 byte) - * 0x306 : Out of buffer (?) - */ -static unsigned long pkzip_explode_lit(pkzip_data_cmp * mpq_pkzip) -{ - unsigned long bits; /* Number of bits to skip */ - unsigned long value; /* Position in buffers */ - - /* - * Test the current bit in byte buffer. If is not set, simply return the next byte. - */ - if (mpq_pkzip->bit_buf & 1) { - - /* - * Skip current bit in the buffer. - */ - if (pkzip_skip_bits(mpq_pkzip, 1)) { - return 0x306; - } - - /* - * The next bits are position in buffers. - */ - value = mpq_pkzip->pos2[(mpq_pkzip->bit_buf & 0xFF)]; - - /* - * Get number of bits to skip - */ - if (pkzip_skip_bits(mpq_pkzip, mpq_pkzip->slen_bits[value])) { - return 0x306; - } - if ((bits = mpq_pkzip->clen_bits[value]) != 0) { - unsigned long val2 = mpq_pkzip->bit_buf & ((1 << bits) - 1); - - if (pkzip_skip_bits(mpq_pkzip, bits)) { - if ((value + val2) != 0x10E) { - return 0x306; - } - } - value = mpq_pkzip->len_base[value] + val2; - } - return value + 0x100; /* Return number of bytes to repeat */ - } - - /* - * Skip one bit - */ - if (pkzip_skip_bits(mpq_pkzip, 1)) { - return 0x306; - } - - /* - * If the binary compression type, read 8 bits and return them as one byte. - */ - if (mpq_pkzip->cmp_type == PKZIP_CMP_BINARY) { - value = mpq_pkzip->bit_buf & 0xFF; - if (pkzip_skip_bits(mpq_pkzip, 8)) { - return 0x306; - } - return value; - } - - /* - * When ASCII compression ... - */ - if (mpq_pkzip->bit_buf & 0xFF) { - value = mpq_pkzip->offs_2c34[mpq_pkzip->bit_buf & 0xFF]; - if (value == 0xFF) { - if (mpq_pkzip->bit_buf & 0x3F) { - if (pkzip_skip_bits(mpq_pkzip, 4)) { - return 0x306; - } - value = mpq_pkzip->offs_2d34[mpq_pkzip->bit_buf & 0xFF]; - } else { - if (pkzip_skip_bits(mpq_pkzip, 6)) { - return 0x306; - } - value = mpq_pkzip->offs_2e34[mpq_pkzip->bit_buf & 0x7F]; - } - } - } else { - if (pkzip_skip_bits(mpq_pkzip, 8)) { - return 0x306; - } - value = mpq_pkzip->offs_2eb4[mpq_pkzip->bit_buf & 0xFF]; - } - return pkzip_skip_bits(mpq_pkzip, mpq_pkzip->bits_asc[value]) ? 0x306 : value; -} - -/* - * Retrieves the number of bytes to move back. - */ -static unsigned long pkzip_explode_dist(pkzip_data_cmp * mpq_pkzip, unsigned long length) -{ - unsigned long pos = mpq_pkzip->pos1[(mpq_pkzip->bit_buf & 0xFF)]; - unsigned long skip = mpq_pkzip->dist_bits[pos]; /* Number of bits to skip */ - - /* - * Skip the appropriate number of bits - */ - if (pkzip_skip_bits(mpq_pkzip, skip) == 1) { - return 0; - } - if (length == 2) { - pos = (pos << 2) | (mpq_pkzip->bit_buf & 0x03); - if (pkzip_skip_bits(mpq_pkzip, 2) == 1) { - return 0; - } - } else { - pos = (pos << mpq_pkzip->dsize_bits) | (mpq_pkzip->bit_buf & mpq_pkzip->dsize_mask); - - /* - * Skip the bits - */ - if (pkzip_skip_bits(mpq_pkzip, mpq_pkzip->dsize_bits) == 1) { - return 0; - } - } - return pos + 1; -} - -static unsigned long pkzip_expand(pkzip_data_cmp * mpq_pkzip) -{ - unsigned int copy_bytes; /* Number of bytes to copy */ - unsigned long one_byte; /* One byte from compressed file */ - unsigned long result; - - mpq_pkzip->out_pos = 0x1000; /* Initialize output buffer position */ - - /* - * If end of data or error, terminate decompress - */ - while ((result = one_byte = pkzip_explode_lit(mpq_pkzip)) < 0x305) { - - /* - * If one byte is greater than 0x100, means "Repeat n - 0xFE bytes" - */ - if (one_byte >= 0x100) { - unsigned char *source; /* ECX */ - unsigned char *target; /* EDX */ - unsigned long copy_length = one_byte - 0xFE; - unsigned long move_back; - - /* - * Get length of data to copy - */ - if ((move_back = pkzip_explode_dist(mpq_pkzip, copy_length)) == 0) { - result = 0x306; - break; - } - - /* - * Target and source pointer - */ - target = &mpq_pkzip->out_buf[mpq_pkzip->out_pos]; - source = target - move_back; - mpq_pkzip->out_pos += copy_length; - while (copy_length-- > 0) { - *target++ = *source++; - } - } else { - mpq_pkzip->out_buf[mpq_pkzip->out_pos++] = (unsigned char) one_byte; - } - - /* - * If number of extracted bytes has reached 1/2 of output buffer, - * flush output buffer. - */ - if (mpq_pkzip->out_pos >= 0x2000) { - - /* - * Copy decompressed data into user buffer. - */ - copy_bytes = 0x1000; - mpq_pkzip->write_buf((char *) &mpq_pkzip->out_buf[0x1000], ©_bytes, - mpq_pkzip->param); - - /* - * If there are some data left, keep them alive - */ - memcpy(mpq_pkzip->out_buf, &mpq_pkzip->out_buf[0x1000], mpq_pkzip->out_pos - 0x1000); - mpq_pkzip->out_pos -= 0x1000; - } - } - copy_bytes = mpq_pkzip->out_pos - 0x1000; - mpq_pkzip->write_buf((char *) &mpq_pkzip->out_buf[0x1000], ©_bytes, mpq_pkzip->param); - return result; -} - -/* - * Main exploding function. - */ -static unsigned int pkzip_explode(unsigned int (*read_buf) (char *buf, unsigned int *size, void *param), - void (*write_buf) (const char *buf, unsigned int *size, void *param), - char *work_buf, void *param) -{ - - pkzip_data_cmp *mpq_pkzip = (pkzip_data_cmp *) work_buf; - - /* - * Set the whole work buffer to zeros - */ - memset(mpq_pkzip, 0, sizeof(pkzip_data_cmp)); - - /* - * Initialize work struct and load compressed data - */ - mpq_pkzip->read_buf = read_buf; - mpq_pkzip->write_buf = write_buf; - mpq_pkzip->param = param; - mpq_pkzip->in_pos = sizeof(mpq_pkzip->in_buf); - mpq_pkzip->in_bytes = mpq_pkzip->read_buf((char *) mpq_pkzip->in_buf, &mpq_pkzip->in_pos, mpq_pkzip->param); - if (mpq_pkzip->in_bytes <= 4) { - return PKZIP_CMP_BAD_DATA; - } - mpq_pkzip->cmp_type = mpq_pkzip->in_buf[0]; /* Get the compression type */ - mpq_pkzip->dsize_bits = mpq_pkzip->in_buf[1]; /* Get the dictionary size */ - mpq_pkzip->bit_buf = mpq_pkzip->in_buf[2]; /* Initialize 16-bit bit buffer */ - mpq_pkzip->extra_bits = 0; /* Extra (over 8) bits */ - mpq_pkzip->in_pos = 3; /* Position in input buffer */ - - /* - * Test for the valid dictionary size - */ - if (4 > mpq_pkzip->dsize_bits || mpq_pkzip->dsize_bits > 6) { - return PKZIP_CMP_INV_DICTSIZE; - } - mpq_pkzip->dsize_mask = 0xFFFF >> (0x10 - mpq_pkzip->dsize_bits); /* Shifted by 'sar' - * instruction */ - if (mpq_pkzip->cmp_type != PKZIP_CMP_BINARY) { - if (mpq_pkzip->cmp_type != PKZIP_CMP_ASCII) { - return PKZIP_CMP_INV_MODE; - } - memcpy(mpq_pkzip->bits_asc, pkzip_bits_asc, sizeof(mpq_pkzip->bits_asc)); - pkzip_gen_asc_tabs(mpq_pkzip); - } - memcpy(mpq_pkzip->slen_bits, pkzip_slen_bits, sizeof(mpq_pkzip->slen_bits)); - pkzip_gen_decode_tabs(0x10, mpq_pkzip->slen_bits, pkzip_len_code, mpq_pkzip->pos2); - memcpy(mpq_pkzip->clen_bits, pkzip_clen_bits, sizeof(mpq_pkzip->clen_bits)); - memcpy(mpq_pkzip->len_base, pkzip_len_base, sizeof(mpq_pkzip->len_base)); - memcpy(mpq_pkzip->dist_bits, pkzip_dist_bits, sizeof(mpq_pkzip->dist_bits)); - pkzip_gen_decode_tabs(0x40, mpq_pkzip->dist_bits, pkzip_dist_code, mpq_pkzip->pos1); - if (pkzip_expand(mpq_pkzip) != 0x306) { - return PKZIP_CMP_NO_ERROR; - } - return PKZIP_CMP_ABORT; -} - - -/* - * Support functions for PKWARE data compression library. - * - * Function loads data from the input buffer. Used by mpq_pkzip - * "implode" and "explode" function as user-defined callback. - * Returns number of bytes loaded. - * - * char * buf - Pointer to a buffer where to store loaded data - * unsigned int * size - Max. number of bytes to read - * void * param - Custom pointer, parameter of implode/explode - */ -static unsigned int pkzip_read_input_data(char *buf, unsigned int *size, void *param) -{ - pkzip_data *info = (pkzip_data *) param; - unsigned int max_avail = (info->in_bytes - info->in_pos); - unsigned int to_read = *size; - - /* - * Check the case when not enough data available - */ - if (to_read > max_avail) { - to_read = max_avail; - } - - /* - * Load data and increment offsets - */ - memcpy(buf, info->in_buf + info->in_pos, to_read); - info->in_pos += to_read; - - return to_read; -} - -/* - * Support functions for PKWARE data compression library. - * - * Function for store output data. Used by mpq_pkzip "implode" and - * "explode" as user-defined callback. - * - * char * buf - Pointer to data to be written - * unsigned int * size - Number of bytes to write - * void * param - Custom pointer, parameter of implode/explode - */ -static void pkzip_write_output_data(const char *buf, unsigned int *size, void *param) -{ - pkzip_data *info = (pkzip_data *) param; - unsigned int max_write = (info->max_out - info->out_pos); - unsigned int to_write = *size; - - /* - * Check the case when not enough space in the output buffer - */ - if (to_write > max_write) { - to_write = max_write; - } - - /* - * Write output data and increments offsets - */ - memcpy(info->out_buf + info->out_pos, buf, to_write); - info->out_pos += to_write; -} - -static int pkzip_decompress(char *out_buf, int *out_length, const char *in_buf, int in_length) -{ - pkzip_data info; /* Data information */ - char *work_buf = malloc(PKZIP_EXP_BUFFER_SIZE); /* mpq_pkzip work buffer */ - - /* - * Fill data information structure - */ - info.in_buf = in_buf; - info.in_pos = 0; - info.in_bytes = in_length; - info.out_buf = out_buf; - info.out_pos = 0; - info.max_out = *out_length; - - /* - * Do the decompression - */ - pkzip_explode(pkzip_read_input_data, pkzip_write_output_data, work_buf, &info); - *out_length = info.out_pos; - free(work_buf); - return 0; -} - -static int adpcm_decompress_mono(char *out_buf, int *out_length, const char *in_buf, int in_length) -{ - *out_length = adpcm_decompress((unsigned char *) out_buf, *out_length, (unsigned char *) in_buf, in_length, 1); - return 1; -} - -static int adpcm_decompress_stereo(char *out_buf, int *out_length, const char *in_buf, int in_length) -{ - *out_length = adpcm_decompress((unsigned char *) out_buf, *out_length, (unsigned char *) in_buf, in_length, 2); - return 1; -} - -static int zlib_decompress(char *out_buf, int *out_length, const char *in_buf, int in_length) -{ - z_stream z; /* Stream information for zlib */ - int result; - - /* - * Fill the stream structure for zlib - */ - z.next_in = (Bytef *) in_buf; - z.avail_in = (uInt) in_length; - z.total_in = in_length; - z.next_out = (Bytef *) out_buf; - z.avail_out = *out_length; - z.total_out = 0; - z.zalloc = NULL; - z.zfree = NULL; - - /* - * Initialize the decompression structure. Storm.dll uses zlib version 1.1.3 - */ - if ((result = inflateInit(&z)) == 0) { - - /* - * Call zlib to decompress the data - */ - result = inflate(&z, Z_FINISH); - *out_length = z.total_out; - inflateEnd(&z); - } - return result; -} - -/* - * Huffmann decompression routine. The in_length parameter is not used, but needs - * to be specified due to compatibility reasons. - * - * 1500F5F0 - */ -static int huff_decompress(char *out_buf, int *out_length, const char *in_buf, int in_length) -{ - struct huffman_tree *ht = malloc(sizeof(struct huffman_tree)); - struct huffman_input_stream *is = malloc(sizeof(struct huffman_input_stream)); - struct huffman_tree_item *hi = malloc(sizeof(struct huffman_tree_item)); - memset(ht, 0, sizeof(struct huffman_tree)); - memset(is, 0, sizeof(struct huffman_input_stream)); - memset(hi, 0, sizeof(struct huffman_tree_item)); - - /* - * Initialize input stream - */ - is->bit_buf = *(unsigned long *) in_buf; - in_buf += sizeof(unsigned long); - is->in_buf = (unsigned char *) in_buf; - is->bits = 32; - - /* - * Initialize the Huffmann tree for decompression - */ - huff_init_tree(ht, hi); - - *out_length = huff_do_decompress(ht, is, (unsigned char *) out_buf, *out_length); - - free(hi); - free(is); - free(ht); - return 0; -} - -int __mpqlib_multi_decompress(char *out_buf, int *pout_length, const char *in_buf, int in_length) -{ - char *temp_buf = NULL; /* Temporary storage for decompressed data */ - char *work_buf = NULL; /* Where to store decompressed data */ - int out_length = *pout_length; /* For storage number of output bytes */ - unsigned fDecompressions1; /* Decompressions applied to the block */ - unsigned fDecompressions2; /* Just another copy of decompressions applied to the block */ - int count = 0; /* Counter for every use */ - int entries = (sizeof(dcmp_table) / sizeof(decompress_table)); - int i; - - /* - * If the input length is the same as output, do nothing. - */ - if (in_length == out_length) { - if (in_buf == out_buf) { - return 1; - } - memcpy(out_buf, in_buf, in_length); - return 1; - } - - /* - * Get applied compression types and decrement data length - */ - fDecompressions1 = fDecompressions2 = (unsigned char) *in_buf++; - in_length--; - - /* - * Search decompression table type and get all types of compression - */ - for (i = 0; i < entries; i++) { - /* - * We have to apply this decompression? - */ - if (fDecompressions1 & dcmp_table[i].mask) { - count++; - } - - /* - * Clear this flag from temporary variable. - */ - fDecompressions2 &= ~dcmp_table[i].mask; - } - - /* - * Check if there is some method unhandled - * (E.g. compressed by future versions) - */ - if (fDecompressions2 != 0) { - printf("Unknown Compression - bitfield = %08x\n", fDecompressions2); - return 0; - } - - /* - * If there is more than only one compression, we have to allocate extra buffer - */ - if (count >= 2) { - temp_buf = malloc(out_length); - } - - /* - * Apply all decompressions - */ - for (i = 0, count = 0; i < entries; i++) { - - /* - * If not used this kind of compression, skip the loop - */ - if (fDecompressions1 & dcmp_table[i].mask) { - - /* - * If odd case, use target buffer for output, otherwise use allocated tempbuf - */ - work_buf = (count++ & 1) ? temp_buf : out_buf; - out_length = *pout_length; - - /* - * Decompress buffer using corresponding function - */ - dcmp_table[i].decompress(work_buf, &out_length, in_buf, in_length); - - /* - * Move output length to src length for next compression - */ - in_length = out_length; - in_buf = work_buf; - } - } - - /* - * If output buffer is not the same like target buffer, we have to copy data - */ - if (work_buf != out_buf) { - memcpy(out_buf, in_buf, out_length); - } - *pout_length = out_length; - - /* - * Delete temporary buffer, if necessary - */ - if (temp_buf != NULL) { - free(temp_buf); - } - return 1; -} - -int __mpqlib_pkzip_decompress(char *out_buf, int *pout_length, const char *in_buf, int in_length) -{ - return pkzip_decompress(out_buf, pout_length, in_buf, in_length); -} @@ -1,5 +1,6 @@ #include <stdlib.h> #include <memory.h> +#include <zlib.h> #include "mpq-bios.h" #include "mpq-file.h" #include "mpq-errors.h" @@ -142,8 +143,29 @@ static int cache_sector(struct mpq_file_t * mpq_f, int sector) { mpq_f->current_sector = sector; il = ol = sector == (mpq_f->number_of_sectors - 1) ? mpq_f->remaining_bytes : mpq_f->sector_size; - - r = __mpqlib_multi_decompress(mpq_f->buffer, &ol, in_buf, mpq_f->sizes[sector]); + + if (ol == mpq_f->sizes[sector]) { + memcpy(mpq_f->buffer, in_buf, ol); + } else { + char * cursor = in_buf; + r = 0; + if ((*cursor++) == 2) { + z_stream z; + z.next_in = (Bytef *) cursor; + z.avail_in = mpq_f->sizes[sector]; + z.total_in = mpq_f->sizes[sector]; + z.next_out = (Bytef *) mpq_f->buffer; + z.avail_out = ol; + z.total_out = 0; + z.zalloc = NULL; + z.zfree = NULL; + if (inflateInit(&z) == 0) { + r = inflate(&z, Z_FINISH) == 0 ? 1 : 0; + ol = z.total_out; + inflateEnd(&z); + } + } + } if (il != ol) r = 0; @@ -78,8 +78,8 @@ char *purpose; char *x = (char *)malloc(len); if (!x) { - fprintf(stderr, "malloc of %d failed for %s\n", - len, purpose); +// fprintf(stderr, "malloc of %d failed for %s\n", +// len, purpose); exit(-1); } return x; |