86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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/*
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* Copyright (c) 2018-2020
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* Jianjia Ma
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* majianjia@live.com
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-05-03 Jianjia Ma The first version
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*/
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#ifndef __NNOM_RNN_H__
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#define __NNOM_RNN_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <string.h>
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#include <stdbool.h>
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#include "nnom.h"
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#include "nnom_layers.h"
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#include "nnom_local.h"
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#include "nnom_tensor.h"
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// a machine interface for configuration
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typedef struct _nnom_rnn_config_t
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{
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nnom_layer_config_t super;
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bool return_sequence;
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bool stateful;
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bool go_backwards;
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} nnom_rnn_config_t;
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// RNN cell base type
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typedef struct _nnom_rnn_cell_t
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{
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nnom_status_t (*run)(struct _nnom_rnn_cell_t* cell); // cell runner
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nnom_status_t (*build)(struct _nnom_rnn_cell_t* cell); // cell builder, calculate buffer size, output data size
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nnom_status_t (*free)(struct _nnom_rnn_cell_t* cell); //
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nnom_layer_t *layer; // pointer to its layer holder
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nnom_layer_config_t *config; // config for the cell event it is a layer type
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nnom_rnn_cell_type_t type;
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void *in_data; // input data
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void *out_data; // output data
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void *in_state; // input state data (or hidden state)
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void *out_state; // output state data
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size_t comp_buf_size; // the size of temporary buffer.
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size_t state_size; // the size of hidden state
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uint16_t units; // the output units
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uint16_t feature_size; // the input feature size (vector size)
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size_t macc; // stat of MAC count.
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} nnom_rnn_cell_t;
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typedef struct _nnom_rnn_layer_t
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{
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nnom_layer_t super;
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nnom_rnn_cell_t *cell;
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void *state_buf; // memory allocated to store state, size = 2 x size of state required by cell.
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uint16_t timestamp_size;// size of timestamp
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bool return_sequence; // whether to return the output for each unit (sequence)
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bool stateful; // whether the states are kept after one inteference
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bool go_backwards; // whether go backwards timestamping
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} nnom_rnn_layer_t;
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// rnn layer
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nnom_layer_t *rnn_s(nnom_rnn_cell_t *cell, const nnom_rnn_config_t* config);
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nnom_status_t rnn_run(nnom_layer_t* layer);
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nnom_status_t rnn_build(nnom_layer_t* layer);
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nnom_status_t rnn_free(nnom_layer_t* layer);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __NNOM_RNN_H__ */
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