[Extractor-gtk-cvslog] SF.net SVN: extractor-gtk: [54] trunk/extractor

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

Revision: 54
          http://extractor-gtk.svn.sourceforge.net/extractor-gtk/?rev=54&view=rev
Author:   someone-guy
Date:     2008-02-19 13:12:31 -0800 (Tue, 19 Feb 2008)

Log Message:
-----------
Add wad support

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

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

Modified: trunk/extractor/Makefile
===================================================================
--- trunk/extractor/Makefile	2008-02-19 20:54:36 UTC (rev 53)
+++ trunk/extractor/Makefile	2008-02-19 21:12:31 UTC (rev 54)
@@ -4,6 +4,7 @@
         homeworld2.c \
         bloodrayne.c \
         xtre.c \
+        wad.c \
         generic.c \
 
 all: extractor

Modified: trunk/extractor/extractor.c
===================================================================
--- trunk/extractor/extractor.c	2008-02-19 20:54:36 UTC (rev 53)
+++ trunk/extractor/extractor.c	2008-02-19 21:12:31 UTC (rev 54)
@@ -22,6 +22,7 @@
   &homeworld2_fmt,
   &bloodrayne_fmt,
   &xtre_fmt,
+  &wad_fmt,
   &generic_fmt,
   NULL
 };

Modified: trunk/extractor/formats.h
===================================================================
--- trunk/extractor/formats.h	2008-02-19 20:54:36 UTC (rev 53)
+++ trunk/extractor/formats.h	2008-02-19 21:12:31 UTC (rev 54)
@@ -28,6 +28,7 @@
 extern fmt_desc_t homeworld2_fmt;
 extern fmt_desc_t bloodrayne_fmt;
 extern fmt_desc_t xtre_fmt;
+extern fmt_desc_t wad_fmt;
 extern fmt_desc_t generic_fmt;
 
 #endif

Added: trunk/extractor/wad.c
===================================================================
--- trunk/extractor/wad.c	                        (rev 0)
+++ trunk/extractor/wad.c	2008-02-19 21:12:31 UTC (rev 54)
@@ -0,0 +1,60 @@
+/**
+ * \file wad.c
+ * \brief routines for handling the Doom etc. WAD archive files
+ *
+ * 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"
+
+//! check if this is a WAD archive file (starts with IWAD, PWAD, WAD3)
+static int check_file(FILE *in) {
+  char sig[5] = {0};
+  rewind(in);
+  fread(sig, 4, 1, in);
+  return strcmp(sig, "IWAD") == 0 || strcmp(sig, "PWAD") == 0 || strcmp(sig, "WAD3") == 0;
+}
+
+static file_t *get_list(FILE *in) {
+  char sig[5] = {0};
+  file_t *list;
+  uint32_t count, tblpos;
+  int i;
+  int v3;
+  rewind(in);
+  fread(sig, 4, 1, in);
+  v3 = strcmp(sig, "WAD3") == 0;
+  count = read_le32(in);
+  if (count > MAX_FILES) count = MAX_FILES;
+  tblpos = read_le32(in);
+  list = calloc(count + 1, sizeof(file_t));
+  for (i = 0; i < count; i++) {
+    fseek(in, tblpos + (v3 ? 32 : 16) * i, SEEK_SET);
+    list[i].start = read_le32(in);
+    list[i].len = read_le32(in);
+    if (v3) {
+      int size2 = read_le32(in);
+      // should always be equal...
+      if (size2 > list[i].len) list[i].len = size2;
+      read_le32(in); // unknown
+    }
+    list[i].name = calloc(1, 17);
+    fread(list[i].name, 1, v3 ? 16 : 8, in);
+  }
+  return list;
+}
+
+fmt_desc_t wad_fmt = {
+  "WAD (Doom etc.)",
+  "WAD (*.wad)",
+  "*.wad;*.WAD",
+  check_file,
+  get_list,
+  default_free_list,
+  default_extract_file,
+};


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