Creating the functionality to list all Importer descriptions and the number of importers available.

code/Assimp.cpp

@@ -423,6 +423,21 @@ const char* aiGetErrorString()
 	return gLastErrorString.c_str();
 }
 
+// -----------------------------------------------------------------------------------------------
+// Return the description of a importer given its index
+const aiImporterDesc* aiGetImportFormatDescription( size_t pIndex)
+{
+	return Importer().GetImporterInfo(pIndex);
+}
+
+// -----------------------------------------------------------------------------------------------
+// Return the number of importers
+size_t aiGetImportFormatCount(void)
+{
+	return Importer().GetImporterCount();
+}
+
+
 // ------------------------------------------------------------------------------------------------
 // Returns the error text of the last failed import process. 
 aiBool aiIsExtensionSupported(const char* szExtension)

include/assimp/cimport.h

@@ -45,6 +45,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef AI_ASSIMP_H_INC
 #define AI_ASSIMP_H_INC
 #include "types.h"
+#include <assimp/importerdesc.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -539,7 +540,20 @@ ASSIMP_API void aiIdentityMatrix3(
 ASSIMP_API void aiIdentityMatrix4(
 	C_STRUCT aiMatrix4x4* mat);
 
+// --------------------------------------------------------------------------------
+/** Returns the number of import file formats available in the current Assimp build.
+ * Use aiGetImportFormatDescription() to retrieve infos of a specific import format.
+ */
+ASSIMP_API size_t aiGetImportFormatCount(void);
 
+// --------------------------------------------------------------------------------
+/** Returns a description of the nth import file format. Use #aiGetImportFormatCount()
+ * to learn how many import formats are supported. 
+ * @param pIndex Index of the import format to retrieve information for. Valid range is
+ *    0 to #aiGetImportFormatCount()
+ * @return A description of that specific import format. NULL if pIndex is out of range.
+ */
+ASSIMP_API const C_STRUCT aiImporterDesc* aiGetImportFormatDescription( size_t pIndex);
 #ifdef __cplusplus
 }
 #endif

include/assimp/importerdesc.h

@@ -138,6 +138,6 @@ Will return a NULL-pointer if no assigned importer desc. was found for the given
     \param  extension   [in] The extension to look for
     \return A pointer showing to the ImporterDesc, \see aiImporterDesc.
 */
-ASSIMP_API C_STRUCT const aiImporterDesc* aiGetImporterDesc( const char *extension );
+ASSIMP_API const C_STRUCT aiImporterDesc* aiGetImporterDesc( const char *extension );
 
 #endif