From 4f55a25217f679205bd39587a26f2a2d1866cb67 Mon Sep 17 00:00:00 2001
From: Finn Williams <Finn.Williams@arm.com>
Date: Fri, 20 Nov 2020 13:57:53 +0000
Subject: IVGCVSW-5559 Add int8_t to tflite delegate on ExecuteNetwork

Signed-off-by: Finn Williams <Finn.Williams@arm.com>
Signed-off-by: Kevin May <kevin.may@arm.com>
Change-Id: I56afc73d48848bc40842692831c05316484757a4
---
 .../NetworkExecutionUtils.hpp                      | 52 +++++++++++++++++++++-
 1 file changed, 51 insertions(+), 1 deletion(-)

(limited to 'tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp')

diff --git a/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp b/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
index 9d9e616e98..742f968a7a 100644
--- a/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
+++ b/tests/NetworkExecutionUtils/NetworkExecutionUtils.hpp
@@ -7,10 +7,13 @@
 
 #include <armnn/IRuntime.hpp>
 #include <armnn/Types.hpp>
+#include <armnn/Logging.hpp>
+#include <armnn/utility/StringUtils.hpp>
 
 #include <mapbox/variant.hpp>
 
 #include <iostream>
+#include <fstream>
 
 
 std::vector<unsigned int> ParseArray(std::istream& stream);
@@ -68,4 +71,51 @@ bool ValidatePath(const std::string& file, const bool expectFile);
  * @param expectFile bool - If true, checks for a regular file.
  * @return bool - True if all given strings are valid paths., false otherwise.
  * */
-bool ValidatePaths(const std::vector<std::string>& fileVec, const bool expectFile);
\ No newline at end of file
+bool ValidatePaths(const std::vector<std::string>& fileVec, const bool expectFile);
+
+template<typename T, typename TParseElementFunc>
+std::vector<T> ParseArrayImpl(std::istream& stream, TParseElementFunc parseElementFunc, const char* chars = "\t ,:")
+{
+    std::vector<T> result;
+    // Processes line-by-line.
+    std::string line;
+    while (std::getline(stream, line))
+    {
+        std::vector<std::string> tokens = armnn::stringUtils::StringTokenizer(line, chars);
+        for (const std::string& token : tokens)
+        {
+            if (!token.empty()) // See https://stackoverflow.com/questions/10437406/
+            {
+                try
+                {
+                    result.push_back(parseElementFunc(token));
+                }
+                catch (const std::exception&)
+                {
+                    ARMNN_LOG(error) << "'" << token << "' is not a valid number. It has been ignored.";
+                }
+            }
+        }
+    }
+
+    return result;
+}
+
+template <typename T, typename TParseElementFunc>
+void PopulateTensorWithDataGeneric(std::vector<T>& tensorData,
+                                   unsigned int numElements,
+                                   const armnn::Optional<std::string>& dataFile,
+                                   TParseElementFunc parseFunction)
+{
+    const bool readFromFile = dataFile.has_value() && !dataFile.value().empty();
+
+    std::ifstream inputTensorFile;
+    if (readFromFile)
+    {
+        inputTensorFile = std::ifstream(dataFile.value());
+    }
+
+    tensorData = readFromFile ?
+                 ParseArrayImpl<T>(inputTensorFile, parseFunction) :
+                 std::vector<T>(numElements, static_cast<T>(0));
+}
-- 
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