4 files changed, 28 insertions, 11 deletions
diff --git a/src/im_file.cpp b/src/im_file.cpp
index 5cfe49d..3bfa779 100644
--- a/src/im_file.cpp
+++ b/src/im_file.cpp
@@ -2,7 +2,7 @@
  * \brief File Access
  *
  * See Copyright Notice in im_lib.h
- * $Id: im_file.cpp,v 1.4 2009/08/19 18:39:43 scuri Exp $
+ * $Id: im_file.cpp,v 1.5 2009/08/23 23:57:51 scuri Exp $
  */
 
 #include <stdlib.h>
@@ -45,6 +45,16 @@ void imFileClear(imFile* ifile)
     ifile->palette[i] = imColorEncode((imbyte)i, (imbyte)i, (imbyte)i);
 }
 
+void imFileSetBaseAttributes(imFile* ifile)
+{
+  imFileFormatBase* ifileformat = (imFileFormatBase*)ifile;
+  imAttribTable* atable = (imAttribTable*)ifileformat->attrib_table;
+
+  atable->Set("FileFormat", IM_BYTE, -1, ifileformat->iformat->format);
+  atable->Set("FileCompression", IM_BYTE, -1, ifileformat->compression);
+  atable->Set("FileImageCount", IM_INT, 1, &ifileformat->image_count);
+}
+
 imFile* imFileOpen(const char* file_name, int *error)
 {
   assert(file_name);
@@ -56,9 +66,7 @@ imFile* imFileOpen(const char* file_name, int *error)
   imFileClear(ifileformat);
 
   ifileformat->attrib_table = new imAttribTable(599);
-  imFileSetAttribute(ifileformat, "FileFormat", IM_BYTE, -1, ifileformat->iformat->format);
-  imFileSetAttribute(ifileformat, "FileCompression", IM_BYTE, -1, ifileformat->compression);
-  imFileSetAttribute(ifileformat, "FileImageCount", IM_INT, 1, &ifileformat->image_count);
+  imFileSetBaseAttributes(ifileformat);
 
   ifileformat->counter = imCounterBegin(file_name);
 
@@ -76,9 +84,7 @@ imFile* imFileOpenAs(const char* file_name, const char* format, int *error)
   imFileClear(ifileformat);
 
   ifileformat->attrib_table = new imAttribTable(599);
-  imFileSetAttribute(ifileformat, "FileFormat", IM_BYTE, -1, ifileformat->iformat->format);
-  imFileSetAttribute(ifileformat, "FileCompression", IM_BYTE, -1, ifileformat->compression);
-  imFileSetAttribute(ifileformat, "FileImageCount", IM_INT, 1, &ifileformat->image_count);
+  imFileSetBaseAttributes(ifileformat);
 
   ifileformat->counter = imCounterBegin(file_name);
 
diff --git a/src/im_format_gif.cpp b/src/im_format_gif.cpp
index d616504..caadd0f 100644
--- a/src/im_format_gif.cpp
+++ b/src/im_format_gif.cpp
@@ -2,7 +2,7 @@
  * \brief GIF - Graphics Interchange Format
  *
  * See Copyright Notice in im_lib.h
- * $Id: im_format_gif.cpp,v 1.4 2009/08/19 18:39:43 scuri Exp $
+ * $Id: im_format_gif.cpp,v 1.5 2009/08/23 23:57:51 scuri Exp $
  */
 
 #include "im_format.h"
@@ -1247,7 +1247,11 @@ int imFileFormatGIF::GIFWriteImageInfo()
 int imFileFormatGIF::ReadImageInfo(int index)
 {
   imAttribTable* attrib_table = AttribTable();
+
+  /* must clear the attribute list, because it can have multiple images and 
+     has many attributes that may exists only for specific images. */
   attrib_table->RemoveAll();
+  imFileSetBaseAttributes(this);
 
   if (gif_data.screen_width) 
   {
diff --git a/src/im_format_tiff.cpp b/src/im_format_tiff.cpp
index 5b072fc..b5e06c5 100644
--- a/src/im_format_tiff.cpp
+++ b/src/im_format_tiff.cpp
@@ -3,7 +3,7 @@
  *
  * See Copyright Notice in im_lib.h
  * See libTIFF Copyright Notice in tiff.h
- * $Id: im_format_tiff.cpp,v 1.4 2009/08/22 04:31:04 scuri Exp $
+ * $Id: im_format_tiff.cpp,v 1.5 2009/08/23 23:57:51 scuri Exp $
  */
 
 #include "im_format.h"
@@ -762,8 +762,10 @@ int imFileFormatTIFF::ReadImageInfo(int index)
 
   uint16* sub_ifd = (uint16*)attrib_table->Get("SubIFDSelect");
 
-  /* must clear the attribute list, because TIFF can have many different images */
+  /* must clear the attribute list, because it can have multiple images and 
+     has many attributes that may exists only for specific images. */
   attrib_table->RemoveAll();
+  imFileSetBaseAttributes(this);
 
   void* data = NULL;
   if (TIFFGetField(this->tiff, TIFFTAG_DNGVERSION, &data) == 1 && data)
diff --git a/src/im_format_wmv.cpp b/src/im_format_wmv.cpp
index a4733a5..4f3b31b 100644
--- a/src/im_format_wmv.cpp
+++ b/src/im_format_wmv.cpp
@@ -2,7 +2,7 @@
  * \brief WMV - Windows Media Video Format
  *
  * See Copyright Notice in im_lib.h
- * $Id: im_format_wmv.cpp,v 1.2 2008/12/03 15:45:34 scuri Exp $
+ * $Id: im_format_wmv.cpp,v 1.3 2009/08/23 23:57:52 scuri Exp $
  */
 
 #include "im_format.h"
@@ -1175,6 +1175,11 @@ int imFileFormatWMV::ReadImageInfo(int index)
 
   imAttribTable* attrib_table = AttribTable();
 
+  /* must clear the attribute list, because it can have multiple images and 
+     has many attributes that may exists only for specific images. */
+  attrib_table->RemoveAll();
+  imFileSetBaseAttributes(this);
+
   if (MediaType->formattype == WMFORMAT_VideoInfo)
   {
     WMVIDEOINFOHEADER* info_header = (WMVIDEOINFOHEADER*)MediaType->pbFormat;