[Extractor-gtk-cvslog] SF.net SVN: extractor-gtk: [23] trunk/extractor

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

Revision: 23
          http://extractor-gtk.svn.sourceforge.net/extractor-gtk/?rev=23&view=rev
Author:   someone-guy
Date:     2007-07-31 19:44:18 -0700 (Tue, 31 Jul 2007)

Log Message:
-----------
Support for Wing Commander IV .tre files

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

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

Modified: trunk/extractor/Makefile
===================================================================
--- trunk/extractor/Makefile	2007-08-01 02:36:56 UTC (rev 22)
+++ trunk/extractor/Makefile	2007-08-01 02:44:18 UTC (rev 23)
@@ -3,6 +3,7 @@
 MODULES=nwn.c \
         homeworld2.c \
         bloodrayne.c \
+        xtre.c \
         generic.c \
 
 all: extractor

Modified: trunk/extractor/extractor.c
===================================================================
--- trunk/extractor/extractor.c	2007-08-01 02:36:56 UTC (rev 22)
+++ trunk/extractor/extractor.c	2007-08-01 02:44:18 UTC (rev 23)
@@ -21,6 +21,7 @@
   &nwn_fmt,
   &homeworld2_fmt,
   &bloodrayne_fmt,
+  &xtre_fmt,
   &generic_fmt,
   NULL
 };

Modified: trunk/extractor/formats.h
===================================================================
--- trunk/extractor/formats.h	2007-08-01 02:36:56 UTC (rev 22)
+++ trunk/extractor/formats.h	2007-08-01 02:44:18 UTC (rev 23)
@@ -24,6 +24,7 @@
 extern fmt_desc_t nwn_fmt;
 extern fmt_desc_t homeworld2_fmt;
 extern fmt_desc_t bloodrayne_fmt;
+extern fmt_desc_t xtre_fmt;
 extern fmt_desc_t generic_fmt;
 
 #endif

Added: trunk/extractor/xtre.c
===================================================================
--- trunk/extractor/xtre.c	                        (rev 0)
+++ trunk/extractor/xtre.c	2007-08-01 02:44:18 UTC (rev 23)
@@ -0,0 +1,77 @@
+/**
+ * \file xtre.c
+ * \brief routines for handling the Wing Commander IV archive files
+ *
+ * Copyright (C) 2007 Reimar Döffinger
+ * License: GPL v2 (see LICENSE file)
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <inttypes.h>
+#include "formats.h"
+#include "helpers.h"
+
+//! check for xtre archive
+static int check_file(FILE *in) {
+  char sig[5] = {0};
+  rewind(in);
+  fread(sig, 4, 1, in);
+  return (strcmp(sig, "XTRE") == 0);
+}
+
+static file_t *get_list(FILE *in) {
+  file_t *list;
+  uint32_t count, tblpos, tblend;
+  int i;
+  fseek(in, 0x10, SEEK_SET);
+  tblpos = read_le32(in);
+  tblend = read_le32(in);
+  if (tblend < tblpos) count = 0;
+  else count = (tblend - tblpos) / 8;
+  list = calloc(count + 1, sizeof(file_t));
+  for (i = 0; i < count; i++) {
+    uint32_t sig;
+    char *formatstr;
+    fseek(in, tblpos + 8 * i, SEEK_SET);
+    list[i].start = read_le32(in);
+    list[i].len = read_le32(in);
+    fseek(in, list[i].start, SEEK_SET);
+    sig = read_be32(in);
+    switch (sig) {
+      case TAG('R', 'I', 'F', 'F'):
+        fseek(in, 4, SEEK_CUR);
+        sig = read_be32(in);
+        switch (sig) {
+          case TAG('W', 'A', 'V', 'E'):
+            formatstr = "%i.wav";
+            break;
+          case TAG('A', 'V', 'I', ' '):
+            formatstr = "%i.avi";
+            break;
+          default:
+            formatstr = "%i.riff";
+        }
+        break;
+      case TAG('F', 'O', 'R', 'M'):
+        formatstr = "%i.frm";
+        break;
+      default:
+        formatstr = "%i.bin";
+    }
+    list[i].name = malloc(50);
+    snprintf(list[i].name, 50, formatstr, i);
+  }
+  return list;
+}
+
+fmt_desc_t xtre_fmt = {
+  "Wing Commander IV",
+  "Wing Commander IV (*.tre)",
+  "*.tre",
+  check_file,
+  get_list,
+  default_free_list,
+  default_extract_file,
+};


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