COMPMID-2161 [NEON] Create IWeightManager class

Change-Id: I1a9a46da2f98e896b825099151b56d1d8271dd31
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1915
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/arm_compute/runtime/IWeightsManager.h b/arm_compute/runtime/IWeightsManager.h
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+++ b/arm_compute/runtime/IWeightsManager.h
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+/*
+ * Copyright (c) 2019 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_IWEIGHTSMANAGER_H__
+#define __ARM_COMPUTE_IWEIGHTSMANAGER_H__
+
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/runtime/ITransformWeights.h"
+
+#include <map>
+
+namespace arm_compute
+{
+/** Weights manager interface to handle weights transformations */
+class IWeightsManager
+{
+public:
+    /** Constructor */
+    IWeightsManager();
+    /** Default Destructor */
+    virtual ~IWeightsManager() = default;
+    /** Prevent instances of this class to be copy constructed */
+    IWeightsManager(const IWeightsManager &) = delete;
+    /** Prevent instances of this class to be copied */
+    IWeightsManager &operator=(const IWeightsManager &) = delete;
+    /** Allow instances of this class to be move constructed */
+    IWeightsManager(IWeightsManager &&) = default;
+    /** Allow instances of this class to be moved */
+    IWeightsManager &operator=(IWeightsManager &&) = default;
+
+    /** Start managing a weights tensor
+     *
+     * @param[in] weights Pointer to the weights tensor to be managed
+     * @param[in] parent  Parent node in case where the weights are coming from a previous reshape function
+     */
+    void manage(const ITensor *weights, ITransformWeights *parent = nullptr);
+    /** Run the reshape function.
+     *
+     * @param[in] weights           Pointer to the weights tensor we want to reshape
+     * @param[in] weights_transform Weights transformation object
+     *
+     * @return The reshaped tensor
+     */
+    ITensor *run(const ITensor *weights, ITransformWeights *weights_transform);
+    /** Acquire the requested reshape tensor of the selected weights
+     *
+     * @param[in] weights           Pointer to the weights tensor to be managed
+     * @param[in] weights_transform Weights transformation object
+     */
+    ITensor *acquire(const ITensor *weights, ITransformWeights *weights_transform);
+    /** Check if the weights are managed
+     *
+     * @param[in] weights Pointer to the weights tensor we want to check if managed
+     *
+     * @return True if the weights tensor is managed else false
+     */
+    bool are_weights_managed(const ITensor *weights);
+
+private:
+    std::map<const ITensor *, std::vector<ITransformWeights *>> _managed_weights;
+    std::map<const ITensor *, ITransformWeights *>              _managed_weights_parents;
+};
+} // arm_compute
+#endif /*__ARM_COMPUTE_IWEIGHTSMANAGER_H__ */
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