1 files changed, 81 insertions, 0 deletions
diff --git a/compiler/nnkit-tf/support/include/nnkit/support/tf/TensorDataMap.h b/compiler/nnkit-tf/support/include/nnkit/support/tf/TensorDataMap.h
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index 000000000..daa1a95b3
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+++ b/compiler/nnkit-tf/support/include/nnkit/support/tf/TensorDataMap.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NNKIT_SUPPORT_TF_TENSOR_DATA_MAP_H__
+#define __NNKIT_SUPPORT_TF_TENSOR_DATA_MAP_H__
+
+#include "nnkit/support/tftestinfo/ParsedTensor.h"
+
+#include <tensorflow/c/c_api.h>
+
+#include <stdexcept>
+#include <memory>
+#include <map>
+
+namespace nnkit
+{
+namespace support
+{
+namespace tf
+{
+
+using nnkit::support::tftestinfo::ParsedTensor;
+
+/**
+ * @brief Class to map parsed tensor and memory for tensor values.
+ *  For parsed tensor, this memory is used to fill input or output values of graph.
+ */
+class TensorDataMap
+{
+public:
+  TensorDataMap() { /* empty */}
+
+  uint8_t *allocate(const ParsedTensor *parsed_tensor)
+  {
+    auto it = _data_map.find(parsed_tensor);
+    if (it != _data_map.end())
+      throw std::runtime_error("Already allocated");
+
+    int bytes = 0;
+    if (parsed_tensor->isFloatTensor())
+      bytes = sizeof(float);
+    else
+      throw std::runtime_error("Unsupported or wrong data type");
+
+    uint64_t size = num_elements(parsed_tensor->shape()) * bytes;
+    _data_map[parsed_tensor] = std::move(std::unique_ptr<uint8_t[]>(new uint8_t[size]));
+
+    return _data_map[parsed_tensor].get();
+  }
+
+  uint8_t *data(const ParsedTensor *parsed_tensor)
+  {
+    auto it = _data_map.find(parsed_tensor);
+    if (it == _data_map.end())
+      throw std::runtime_error("Cannot find parsed tensor");
+
+    return it->second.get();
+  }
+
+private:
+  std::map<const ParsedTensor *, std::unique_ptr<uint8_t[]>> _data_map;
+};
+
+} // namespace tf
+} // namespace support
+} // namespace nnkit
+
+#endif // __NNKIT_SUPPORT_TF_TENSOR_DATA_MAP_H__