1 files changed, 70 insertions, 0 deletions
diff --git a/libs/tflite/src/FeatureView.cpp b/libs/tflite/src/FeatureView.cpp
new file mode 100644
index 000000000..fdf5a4b00
--- /dev/null
+++ b/libs/tflite/src/FeatureView.cpp
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2018 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.
+ */
+
+#include "tflite/FeatureView.h"
+#include "tflite/TensorUtils.h"
+
+#include <cassert>
+
+namespace nnfw
+{
+namespace tflite
+{
+
+nnfw::misc::feature::Shape getFeatureShape(const TfLiteTensor *tensor)
+{
+  nnfw::misc::feature::Shape shape{tensor->dims->data[3], tensor->dims->data[1],
+                                   tensor->dims->data[2]};
+
+  return shape;
+}
+
+FeatureView<float>::FeatureView(::tflite::Interpreter &interp, const InputIndex &index)
+{
+  const auto tensor_index = interp.inputs().at(index.asInt());
+  auto tensor_ptr = interp.tensor(tensor_index);
+
+  assert(isFloatTensor(tensor_ptr));
+  assert(isFeatureTensor(tensor_ptr));
+
+  _shape = getFeatureShape(tensor_ptr);
+  _base = interp.typed_tensor<float>(tensor_index);
+}
+
+FeatureView<float>::FeatureView(::tflite::Interpreter &interp, const OutputIndex &index)
+{
+  const auto tensor_index = interp.outputs().at(index.asInt());
+  auto tensor_ptr = interp.tensor(tensor_index);
+
+  assert(isFloatTensor(tensor_ptr));
+  assert(isFeatureTensor(tensor_ptr));
+
+  _shape = getFeatureShape(tensor_ptr);
+  _base = interp.typed_tensor<float>(tensor_index);
+}
+
+float FeatureView<float>::at(uint32_t ch, uint32_t row, uint32_t col) const
+{
+  return *(_base + getElementOffset(ch, row, col));
+}
+
+float &FeatureView<float>::at(uint32_t ch, uint32_t row, uint32_t col)
+{
+  return *(_base + getElementOffset(ch, row, col));
+}
+
+} // namespace tflite
+} // namespace nnfw