libpipi: the GDI+ codec defaults to BMP when the file extension is unknown.

git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@3078 92316355-f0b4-4df1-b90c-862c8a59935f

pipi/codec/gdiplus.cpp

@@ -90,6 +90,8 @@ extern "C" int pipi_save_gdiplus(pipi_image_t *img, const char *name)
         fmt = L"image/png";
     else if(strstr(name, ".tiff"))
         fmt = L"image/tiff";
+    else /* if(strstr(name, ".bmp")) */
+        fmt = L"image/bmp";
 
     unsigned int num = 0, size = 0;
     Gdiplus::GetImageEncodersSize(&num, &size);