[Extractor-gtk-cvslog] SF.net SVN: extractor-gtk: [75] trunk/extractor

[<som...@us...>]

Revision: 75
          http://extractor-gtk.svn.sourceforge.net/extractor-gtk/?rev=75&view=rev
Author:   someone-guy
Date:     2008-04-06 13:09:49 -0700 (Sun, 06 Apr 2008)

Log Message:
-----------
Add parsing support for Metal Gear Solid: The Twin Snakes vox.dat file

Modified Paths:
--------------
    trunk/extractor/Makefile
    trunk/extractor/extractor.c
    trunk/extractor/formats.h

Added Paths:
-----------
    trunk/extractor/solid.c

Modified: trunk/extractor/Makefile
===================================================================
--- trunk/extractor/Makefile	2008-04-06 20:09:20 UTC (rev 74)
+++ trunk/extractor/Makefile	2008-04-06 20:09:49 UTC (rev 75)
@@ -9,6 +9,7 @@
     homeworld2.c \
     nwn.c \
     pak.c \
+    solid.c \
     wad.c \
     xtre.c \
 

Modified: trunk/extractor/extractor.c
===================================================================
--- trunk/extractor/extractor.c	2008-04-06 20:09:20 UTC (rev 74)
+++ trunk/extractor/extractor.c	2008-04-06 20:09:49 UTC (rev 75)
@@ -23,6 +23,7 @@
   &homeworld2_fmt,
   &nwn_fmt,
   &pak_fmt,
+  &solid_fmt,
   &wad_fmt,
   &xtre_fmt,
   NULL

Modified: trunk/extractor/formats.h
===================================================================
--- trunk/extractor/formats.h	2008-04-06 20:09:20 UTC (rev 74)
+++ trunk/extractor/formats.h	2008-04-06 20:09:49 UTC (rev 75)
@@ -30,6 +30,7 @@
 extern const fmt_desc_t homeworld2_fmt;
 extern const fmt_desc_t nwn_fmt;
 extern const fmt_desc_t pak_fmt;
+extern const fmt_desc_t solid_fmt;
 extern const fmt_desc_t wad_fmt;
 extern const fmt_desc_t xtre_fmt;
 

Added: trunk/extractor/solid.c
===================================================================
--- trunk/extractor/solid.c	                        (rev 0)
+++ trunk/extractor/solid.c	2008-04-06 20:09:49 UTC (rev 75)
@@ -0,0 +1,105 @@
+/**
+ * \file solid.c
+ * \brief routines for handling the GameCube Metal Gear Solid: Twin Snakes vox.dat format
+ *
+ * Copyright (C) 2008 Reimar Döffinger
+ * License: GPL v2 (see LICENSE file)
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include "formats.h"
+#include "helpers.h"
+
+//! this is only a heuristic check, hopefully it is reliable enough
+static int check_file(FILE *in) {
+  rewind(in);
+  return read_be32(in) == 0x10 && read_be32(in) == 0x10 && read_be32(in) == 0;
+}
+
+enum {
+  LANG_ANY,
+  LANG_EN,
+  LANG_FR,
+  LANG_DE,
+  LANG_IT,
+  LANG_ES,
+};
+
+static const char *langstr(int lang) {
+  switch (lang) {
+    case LANG_ANY: return "";
+    case LANG_EN : return "en";
+    case LANG_FR : return "fr";
+    case LANG_DE : return "de";
+    case LANG_IT : return "it";
+    case LANG_ES : return "es";
+  }
+  return "nn";
+}
+
+enum {
+  TYPE_AUDIO = 0x01,
+  TYPE_SUB = 0x04,
+  TYPE_T6 = 0x06, // subtitle references? (unsure)
+  TYPE_T7 = 0x07,
+  TYPE_INDEX = 0x10,
+  TYPE_PADDING = 0xf0,
+};
+
+static const char *typestr(int type) {
+  switch (type) {
+    case TYPE_AUDIO  : return "ogg";
+    case TYPE_SUB    : return "sub";
+    case TYPE_T6     : return "t6";
+    case TYPE_T7     : return "t7";
+    case TYPE_INDEX  : return "idx"; // should never be used
+    case TYPE_PADDING: return "pad"; // should not be used either
+  }
+  return "bin";
+}
+
+static file_t *get_list(FILE *in) {
+  int cnt = 0;
+  file_t *list = calloc(1, sizeof(file_t));
+  rewind(in);
+  while (cnt < MAX_FILES) {
+    int lang = read_be16(in);
+    int type = read_be16(in);
+    uint32_t len = read_be32(in);
+    if (feof(in)) break;
+    if (type == TYPE_INDEX) {
+      char ext[8];
+      read_be32(in); // unknown, always 0?
+      lang = read_be16(in);
+      type = read_be16(in);
+      if (*langstr(lang))
+        snprintf(ext, sizeof(ext), "%s.%s", langstr(lang), typestr(type));
+      else
+        snprintf(ext, sizeof(ext), "%s", typestr(type));
+      add_entry(&list, cnt, ext);
+      list[cnt].start = ftell(in) - 16;
+      cnt++;
+    } else if (type == TYPE_PADDING) {
+      uint64_t pos = ftell(in);
+      len = 16; // should be already 16, just to be sure
+      pos = (pos + 0x800) & ~0x7ff;
+      fseek(in, pos, SEEK_SET);
+    } else
+      fseek(in, 8, SEEK_CUR);
+    fseek(in, len - 16, SEEK_CUR);
+  }
+  return list;
+}
+
+const fmt_desc_t solid_fmt = {
+  "MetalGear Solid: TS",
+  "MetalGear Solid: TS (vox.dat)",
+  "vox.dat",
+  check_file,
+  get_list,
+  default_free_list,
+  default_extract_file,
+  default_extract_mem,
+};


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