/****************************************************************************
*
*    Copyright (c) 2020 Vivante Corporation
*
*    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.
*
*****************************************************************************/
#include <string.h>

#include "vsi_nn_types.h"
#include "vsi_nn_platform.h"
#include "vsi_nn_graph.h"
#include "vsi_nn_node.h"
#include "utils/vsi_nn_math.h"
#include "utils/vsi_nn_dtype_util.h"
#include "vsi_nn_ops.h"
#include "vsi_nn_tensor.h"
#include "vsi_nn_tensor_util.h"
#include "vsi_nn_prv.h"
#include "vsi_nn_log.h"
#include "vsi_nn_error.h"
#include "vsi_nn_internal_node.h"
#include "utils/vsi_nn_constraint_check.h"

#define _INPUT_NUM          (1)
#define _OUTPUT_NUM         (1)

static vsi_status op_compute
    (
    vsi_nn_node_t * self,
    vsi_nn_tensor_t ** inputs,
    vsi_nn_tensor_t ** outputs
    )
{
    VSI_UNREFERENCED(inputs);
    VSI_UNREFERENCED(outputs);
    return vsi_nn_internal_compute_node( self );
} /* op_compute() */

static vsi_status op_deinit
    (
    vsi_nn_node_t * self
    )
{
    vsi_nn_internal_deinit_node_wksp( self );

    vsi_nn_op_common_deinit(self);

    return VSI_SUCCESS;
} /* op_deinit() */

static vsi_bool op_check
    (
    vsi_nn_node_t * self,
    vsi_nn_tensor_t ** inputs,
    vsi_nn_tensor_t ** outputs
    )
{
    vsi_bool ret = vsi_nn_OpCheck(VSI_NN_OP_LINEAR, self, inputs, outputs);

    return ret;
} /* op_check() */

static vsi_bool op_setup
    (
    vsi_nn_node_t * self,
    vsi_nn_tensor_t ** inputs,
    vsi_nn_tensor_t ** outputs
    )
{
    vsi_bool ret = FALSE;
    vsi_nn_internal_node_t* curr = NULL;

    vsi_nn_internal_init_node_wksp(self);

    curr = vsi_nn_internal_new_node(self, VSI_NN_OP_LINEAR, 0, 0);
    CHECK_PTR_FAIL_GOTO(curr, "Create internal node failed", final);
    curr->node->nn_param.linear.a = self->nn_param.dropout.ratio;
    curr->node->nn_param.linear.b = 0;
    curr->inputs[0] = inputs[0];
    curr->outputs[0] = outputs[0];

    ret = vsi_nn_internal_setup_node(self, curr);

final:
    return ret;
} /* op_init() */

#ifdef __cplusplus
extern "C" {
#endif
/* Registrar */
DEF_OP_REG
    (
    /* op_name    */ DROPOUT,
    /* init       */ NULL,
    /* compute    */ op_compute,
    /* deinit     */ op_deinit,
    /* check      */ op_check,
    /* setup      */ op_setup,
    /* optimize   */ NULL,
    /* input_num  */ 1,
    /* output_num */ 1
    );
#ifdef __cplusplus
}
#endif
