From 70cb6d01b478fbb1cfa2741553f35e6d8da4042d Mon Sep 17 00:00:00 2001
From: Kyle K <kylek389@gmail.com>
Date: Wed, 15 Apr 2015 04:38:04 -0500
Subject: initial commit

1st commit after 3 hard weeks of staring at hex editor. At this time
WMN.DAT archive from Wangan Midnight is extractable.
---
 wmn.h | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 wmn.h

(limited to 'wmn.h')

diff --git a/wmn.h b/wmn.h
new file mode 100644
index 0000000..7f81695
--- /dev/null
+++ b/wmn.h
@@ -0,0 +1,89 @@
+#ifndef TXREXTRACTOR_WMN_HEADER
+#define TXREXTRACTOR_WMN_HEADER
+
+#include "stdint.h"
+#include "TXRExtractor.h"
+
+#define WMN_FILENAME_MAX_SZ	128
+#define WMN_INFLATE_CHUNK_MAX_SZ	0x40000 /* 256KB */
+
+
+// first 48 bytes in table of content (.TOC file) of Wangan Midnight
+struct WMN_TOC_HEADER {
+	char fourcc[4]; // BLDh
+	uint32_t vermagic; // 0
+	char def_section[4]; // "def "
+	uint32_t def_section_sz; // size of def chunk, 24 bytes for WMN
+
+	uint32_t unknown1; // 65536
+	uint32_t number_of_files; // number of files in WMN.DAT, it is 3174
+	uint32_t unknown2; // 22771984
+	uint32_t unknown3; // 6620888, AUDIO_PS3.TOC has 0x0 here anyway?
+
+	uint32_t alignment; // 2048 byte aligned
+	uint32_t unknown4; // 0x0
+	char inf_section[4]; // "inf "
+	uint32_t inf_section_sz; // size of inf chunk
+};
+
+// starts at 0x1F020h
+struct WMN_TOC_TBL_SECTION {
+	char tbl_section[4]; // "tbl "
+	uint32_t tbl_section_sz; // 101656 bytes for WMN
+	// after 8 of above bytes, fname null terminated strings can be read
+};
+
+// starts at 0x37D40h
+struct WMN_TOC_ROF_SECTION {
+	char rof_section[4]; // "rof "
+	uint32_t rof_section_sz; // 512 bytes for WMN
+	// at this it is unknown what rof section is for
+	// after this it is end of TOC file
+};
+
+// 40 bytes per entry, 3174 of them starting at 0x30h
+struct WMN_TOC_DIR_ENTRY {
+	uint32_t file_offset; // offset * alignment = starting position of a file
+	uint32_t file_zsz; // seems to be 8 more than 'file_deflate_parts_sz' member from 'WMN_DAT_CHUNK'
+	uint32_t file_sz; // final file size, non-deflate files report this as 0, e.g. FONT/MDK32_ROW.DAT at 0xAF800h in WMN.DAT
+	uint32_t unknown1; // 
+	uint32_t unknown_zero1;
+	uint32_t unknown_zero2;
+	char unknown_string[12];
+	uint32_t unknown_zero3;
+};
+
+// deflated chunk spec, weights in at 60 bytes
+struct WMN_DAT_CHUNK {
+	char fourcc[4]; // GARC
+	uint32_t file_deflate_parts_sz; // size of all chunks combined starting with "GARC" to last bytes before zeros padding begin
+	char file_zlib_magic[4]; // zlib
+	uint32_t file_inflate_sz; // final file size after inflation of all chunks
+
+	// below part is 28 bytes
+	char inf_section[4]; // "inf "
+	uint32_t inf_section_sz; // 20 bytes for Wangan Midnight
+	uint32_t inf_section_unknown1; // 4656
+	uint32_t inf_section_max_chunk_size; // 256KB aka 262144
+	uint32_t inf_section_unknown2; // 1536
+	char inf_section_padding[8]; // 0x0h 0x0h
+
+	char dat_section[4]; // "dat "
+	uint32_t dat_section_size; // size of all chunks combined starting with "dat " and ending just before zeros padding begin
+	uint32_t sz_of_curr_deflated_chunk; // size of raw chunk deflate data including the 6 byte zlib header and ending somewhere before padded 0x0h
+										// every nth chunks starts with this followed by 0x0h, 6 byte zlib header, and raw data...
+	char padding[4]; // 0x0
+	/* char zlibheader[6];  e.g. 78 9C BD 5A 79 78 */
+	// rest is raw zlib deflate data...
+	// followed by ADLER32 hash?
+};
+
+
+// function prototypes
+int mkdirr(const char *);
+int wmn_dat_inflate_file(FILE *, struct WMN_DAT_CHUNK, struct WMN_TOC_DIR_ENTRY, void **, size_t *, const char *);
+int wmn_toc_parse_filenames(FILE *, struct WMN_TOC_HEADER, char **);
+int wmn_toc_parse_dir_entries(FILE *, FILE *, struct WMN_TOC_HEADER, char **);
+int wmn_extract(FILE *, FILE *);
+
+#endif
-- 
cgit v1.2.3