Add FITS to thumbnailer

thumbnailer/TenmonThumbnailProvider.cpp

@@ -1,16 +1,10 @@
-// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
-// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
-// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
-// PARTICULAR PURPOSE.
-//
-// Copyright (c) Microsoft Corporation. All rights reserved
-
 #include <shlwapi.h>
 #include <thumbcache.h> // For IThumbnailProvider.
 #include <new>
 #include "libxisf.h"
 
 bool loadXISF(const LibXISF::ByteArray &data, HBITMAP *hbmp, UINT thumbSize);
+bool loadFITS(const LibXISF::ByteArray &data, HBITMAP *hbmp, UINT thumbSize);
 
 class TenmonThumbProvider : public IInitializeWithStream,
                              public IThumbnailProvider
@@ -109,8 +103,19 @@ IFACEMETHODIMP TenmonThumbProvider::GetThumbnail(UINT cx, HBITMAP *phbmp, WTS_AL
     *pdwAlpha = WTSAT_RGB;
 
     data.resize(readSize);
-    if(loadXISF(data, phbmp, cx))
-        return S_OK;
+    if(data[0] == 'X' && data[1] == 'I' && data[2] == 'S' && data[3] == 'F')
+    {
+        if(loadXISF(data, phbmp, cx))
+            return S_OK;
+        else
+            return E_FAIL;
+    }
     else
-        return E_FAIL;
+    {
+        if(loadFITS(data, phbmp, cx))
+            return S_OK;
+        else
+            return E_FAIL;
+    }
+    return E_FAIL;
 }