exercise.patch

diff --git a/NFIQ2/NFIQ2Algorithm/include/Data.h b/NFIQ2/NFIQ2Algorithm/include/Data.h
index 620ab41..8f6a67f 100644
--- a/NFIQ2/NFIQ2Algorithm/include/Data.h
+++ b/NFIQ2/NFIQ2Algorithm/include/Data.h
@@ -62,6 +62,8 @@ namespace NFIQ
 		*/
 		void readFromFile(const std::string & filename);
 
+		void readFromRaw(unsigned char* buf, unsigned long len);
+
 		/**
 		* @fn writeToFile
 		* @brief Writes the content to a file.
diff --git a/NFIQ2/NFIQ2Algorithm/include/NFIQ2Algorithm.h b/NFIQ2/NFIQ2Algorithm/include/NFIQ2Algorithm.h
index 305ee44..49a4785 100644
--- a/NFIQ2/NFIQ2Algorithm/include/NFIQ2Algorithm.h
+++ b/NFIQ2/NFIQ2Algorithm/include/NFIQ2Algorithm.h
@@ -93,6 +93,34 @@ namespace NFIQ
 	};
 }
 
+extern "C" {
+    int nfiq2score(unsigned char* buf,unsigned long len)
+    {
+        NFIQ::FingerprintImageData fpImage;
+        fpImage.readFromRaw(buf,len);
+
+        NFIQ::FingerprintImageData rawImage;
+        rawImage.fromBMP(fpImage);
+
+        NFIQ::NFIQ2Algorithm nfiq2;
+
+        std::list<NFIQ::ActionableQualityFeedback> actionableQuality;
+        std::list<NFIQ::QualityFeatureData> featureVector;
+        std::list<NFIQ::QualityFeatureSpeed> featureTimings;
+
+        unsigned int qualityScore = nfiq2.computeQualityScore (
+            rawImage,
+            true,
+            actionableQuality,
+            false,
+            featureVector,
+            false,
+            featureTimings);
+
+        return qualityScore;
+    }
+}
+
 #endif
 
 /******************************************************************************/
diff --git a/NFIQ2/NFIQ2Algorithm/src/Data.cpp b/NFIQ2/NFIQ2Algorithm/src/Data.cpp
index 6f85cea..e67b321 100644
--- a/NFIQ2/NFIQ2Algorithm/src/Data.cpp
+++ b/NFIQ2/NFIQ2Algorithm/src/Data.cpp
@@ -225,4 +225,12 @@ std::string Data::toBase64String() const
 	delete[] output;
 
 	return returnStr;
-}
\ No newline at end of file
+}
+
+void Data::readFromRaw(unsigned char* buf, unsigned long len)
+{
+    if (!buf || len <= 0)
+        throw NFIQ::NFIQException(NFIQ::e_Error_CannotReadFromFile);
+
+    this->assign(buf, len);
+}