[Extractor-gtk-cvslog] SF.net SVN: extractor-gtk:[105] trunk/extractor/solidsub.c

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

Revision: 105
          http://extractor-gtk.svn.sourceforge.net/extractor-gtk/?rev=105&view=rev
Author:   someone-guy
Date:     2008-08-22 16:11:41 +0000 (Fri, 22 Aug 2008)

Log Message:
-----------
Add pbm header

Modified Paths:
--------------
    trunk/extractor/solidsub.c

Modified: trunk/extractor/solidsub.c
===================================================================
--- trunk/extractor/solidsub.c	2008-08-22 16:11:25 UTC (rev 104)
+++ trunk/extractor/solidsub.c	2008-08-22 16:11:41 UTC (rev 105)
@@ -26,9 +26,10 @@
   while (!feof(in) && cnt < MAX_FILES) {
     uint32_t size = read_le32(in);
     if (!size) continue;
-    add_entry_nr(&list, cnt, namenr, img ? "img" : "txt");
+    add_entry_nr(&list, cnt, namenr, img ? "pbm" : "txt");
     list[cnt].start = ftell(in);
     list[cnt].len = size;
+    list[cnt].priv = (void *)(intptr_t)img;
     cnt++;
     fseek(in, size, SEEK_CUR);
     if (img) namenr++;
@@ -37,6 +38,38 @@
   return list;
 }
 
+static const char pbm_string[] =
+  "P4\n"
+  "# PBM header added by extractor, original data follows the third newline\n"
+  "48 %i\n";
+
+static int extract_file(FILE *in, const file_t *file, FILE *out) {
+  int len, len2;
+  // not an image file
+  if (!file->priv) return default_extract_file(in, file, out);
+  len = fprintf(out, pbm_string, (int)file->len / 6);
+  if (len <= 0) return len;
+  fseek(in, file->start, SEEK_SET);
+  len2 = fcopy(in, out, file->len);
+  if (len2 <= 0) return len2;
+  return len + len2;
+}
+
+static int extract_mem(FILE *in, const file_t *file, uint8_t *out, int size) {
+  int len, len2;
+  // not an image file
+  if (!file->priv) return default_extract_mem(in, file, out, size);
+  len = snprintf(out, size, pbm_string, (int)file->len / 6);
+  if (len >= size) return size;
+  out  += len;
+  size -= len;
+  if (size > file->len) size = file->len;
+  fseek(in, file->start, SEEK_SET);
+  len2 = fread(out, 1, size, in);
+  if (len2 <= 0) return len2;
+  return len + len2;
+}
+
 const fmt_desc_t solidsub_fmt = {
   "solidsub",
   "MetalGear Solid: TS subtitles",
@@ -45,6 +78,6 @@
   check_file,
   get_list,
   default_free_list,
-  default_extract_file,
-  default_extract_mem,
+  extract_file,
+  extract_mem,
 };


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