COMPMID-363 Add Graph library support

Change-Id: Ie841419bf65d0e06bdfe0bdd2d8d4e0bb3631e54
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/87931
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/arm_compute/graph/INode.h b/arm_compute/graph/INode.h
new file mode 100644
index 0000000000..13b5d05f87
--- /dev/null
+++ b/arm_compute/graph/INode.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2017 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_INODE_H__
+#define __ARM_COMPUTE_GRAPH_INODE_H__
+
+#include "arm_compute/graph/Types.h"
+#include "arm_compute/runtime/IFunction.h"
+
+#include <memory>
+
+namespace arm_compute
+{
+namespace graph
+{
+/** Node interface */
+class INode
+{
+public:
+    /** Virtual Destructor */
+    virtual ~INode() = default;
+    /** Interface to be implemented that instantiates the node
+     *
+     * @param[in] hint   Hint to where the node should be executed
+     * @param[in] input  Input tensor of the node
+     * @param[in] output Output tensor of the node
+     */
+    virtual std::unique_ptr<arm_compute::IFunction> instantiate_node(Hint hint, ITensor *input, ITensor *output) = 0;
+    /** Override the existing hint
+     *
+     * @note If the input is DONT_CARE then the method has to pick a technology,
+     *       else it can accept the hint or override it (But not with DONT_CARE)
+     *
+     * @param[in] hint Hint to be considered
+     *
+     * @return The updated hint
+     */
+    Hint override_hint(Hint hint) const;
+
+    virtual void print_info() = 0;
+
+protected:
+    /** Interface to be implement that override the hint
+     *
+     * @param[in] hint Hint to be considered
+     *
+     * @return The updated hint
+     */
+    virtual Hint node_override_hint(Hint hint) const;
+
+protected:
+    Hint     _hint{ Hint::DONT_CARE };
+    ITensor *_input{ nullptr };
+    ITensor *_output{ nullptr };
+};
+} // namespace graph
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_GRAPH_INODE_H__ */