1 files changed, 84 insertions, 0 deletions
diff --git a/arm_compute/graph/nodes/ConcatenateLayerNode.h b/arm_compute/graph/nodes/ConcatenateLayerNode.h
new file mode 100644
index 0000000000..20c8523752
--- /dev/null
+++ b/arm_compute/graph/nodes/ConcatenateLayerNode.h
@@ -0,0 +1,84 @@
+/*
+ * 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 __ARM_COMPUTE_GRAPH_CONCATENATE_LAYER_NODE_H__
+#define __ARM_COMPUTE_GRAPH_CONCATENATE_LAYER_NODE_H__
+
+#include "arm_compute/graph/INode.h"
+
+namespace arm_compute
+{
+namespace graph
+{
+/** Concatenation Layer node */
+class ConcatenateLayerNode final : public INode
+{
+public:
+    /** Constructor
+     *
+     * @param[in] total_nodes Number of nodes that will get concatenated
+     * @param[in] axis        Concatenation axis
+     */
+    ConcatenateLayerNode(unsigned int total_nodes, DataLayoutDimension axis);
+    /** Computes concatenations output descriptor
+     *
+     * @param[in] input_descriptors Input descriptors
+     * @param[in] axis              Concatenation axis
+     *
+     * @return Expected output descriptor
+     */
+    static TensorDescriptor compute_output_descriptor(const std::vector<TensorDescriptor> &input_descriptors, DataLayoutDimension axis);
+    /** Disables or not the depth concatenate node
+     *
+     * @warning This is used when concatenate is performed using sub-tensors, where this node is used as a placeholder.
+     *
+     * @param[in] is_enabled If true a backend function is created to perform the concatenation (involves copying),
+     *                       while if false, no function is created and we assume that sub-tensors are properly set to simulate
+     *                       a zero copy operation.
+     */
+    void set_enabled(bool is_enabled);
+    /** Enabled parameter accessor
+     *
+     * @return True if a backend function is to be created else false
+     */
+    bool is_enabled() const;
+    /** Concatenation axis parameter accessor
+     *
+     * @return Concatenation axis
+     */
+    DataLayoutDimension concatenation_axis() const;
+
+    // Inherited overridden methods:
+    NodeType         type() const override;
+    bool             forward_descriptors() override;
+    TensorDescriptor configure_output(size_t idx) const override;
+    void accept(INodeVisitor &v) override;
+
+private:
+    unsigned int        _total_nodes;
+    DataLayoutDimension _axis;
+    bool                _is_enabled;
+};
+} // namespace graph
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_GRAPH_CONCATENATE_LAYER_NODE_H__ */