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+/*
+ * 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.
+ */
+
+/*
+ * Copyright (c) 2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __CONV2D_IO_ACCESSOR_H__
+#define __CONV2D_IO_ACCESSOR_H__
+
+#include <arm_compute/graph/ITensorAccessor.h>
+#include <arm_compute/runtime/CL/CLFunctions.h>
+
+#include "types.h"
+
+class InputAccessor : public arm_compute::graph::ITensorAccessor
+{
+public:
+    InputAccessor(const float* inputData, const Shape& inputShape);
+    InputAccessor(InputAccessor&&) = default;
+
+    // Inherited methods overriden:
+    bool access_tensor(arm_compute::ITensor& tensor) override;
+
+private:
+    const float* _inputData;
+    const Shape& _inputShape;
+};
+
+class WeightAccessor : public arm_compute::graph::ITensorAccessor
+{
+public:
+    WeightAccessor(const float* filterData, const Shape& filterShape);
+    WeightAccessor(WeightAccessor&&) = default;
+
+    // Inherited methods overriden:
+    bool access_tensor(arm_compute::ITensor& tensor) override;
+
+private:
+    const float* _filterData;
+    const Shape& _filterShape;
+};
+
+class BiasAccessor : public arm_compute::graph::ITensorAccessor
+{
+public:
+    BiasAccessor(const float* biasData, const Shape& biasShape);
+    BiasAccessor(BiasAccessor&&) = default;
+
+    // Inherited methods overriden:
+    bool access_tensor(arm_compute::ITensor& tensor) override;
+
+private:
+    const float* _biasData;
+    const Shape& _biasShape;
+};
+
+class OutputAccessor : public arm_compute::graph::ITensorAccessor
+{
+public:
+    OutputAccessor(float* outputData, const Shape& outputShape);
+    OutputAccessor(OutputAccessor&&) = default;
+
+    // Inherited methods overriden:
+    bool access_tensor(arm_compute::ITensor& tensor) override;
+
+private:
+    float* _outputData;
+    const Shape& _outputShape;
+};
+
+#endif // __CONV2D_IO_ACCESSOR_H__