PALDepthwiseConv2D.h

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/*
 * Copyright (c) 2024 Samsung Electronics Co., Ltd. All Rights Reserved
 * Copyright 2017 The TensorFlow Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef ONERT_MICRO_EXECUTE_PAL_DEPTHWISE_CONV_2D_H
#define ONERT_MICRO_EXECUTE_PAL_DEPTHWISE_CONV_2D_H
 
#include "PALDepthwiseConv2DCommon.h"
#include "core/OMKernelData.h"
#include "core/OMRuntimeShape.h"
#include "PALUtils.h"
 
#include <arm_nnfunctions.h>
 
namespace onert_micro
{
namespace execute
{
namespace pal
{
 
// Fixed-point per-channel-quantization deptwise_conv2D reference kernel.
OMStatus DepthwiseConvPerChannel(const core::ConvQuant &params,
                                 const core::OMRuntimeShape &input_shape, const int8_t *input_data,
                                 const core::OMRuntimeShape &filter_shape,
                                 const int8_t *filter_data, const int32_t *bias_data,
                                 const core::OMRuntimeShape &output_shape, int8_t *output_data)
{
  cmsis_nn_dw_conv_params conv_params;
  conv_params.dilation.h = params.dilation_height_factor;
  conv_params.dilation.w = params.dilation_width_factor;
 
  assert(conv_params.dilation.h == 1);
  assert(conv_params.dilation.w == 1);
 
  conv_params.input_offset = params.input_offset;
  conv_params.output_offset = params.output_offset;
  conv_params.stride.h = params.stride_height;
  conv_params.stride.w = params.stride_width;
  conv_params.padding.h = params.pad_h;
  conv_params.padding.w = params.pad_w;
  conv_params.activation.min = params.quantized_activation_min;
  conv_params.activation.max = params.quantized_activation_max;
  conv_params.ch_mult = params.depth_multiplier;
 
  cmsis_nn_per_channel_quant_params quant_params;
  quant_params.multiplier = const_cast<int32_t *>(params.per_channel_output_multiplier.data());
  quant_params.shift = const_cast<int32_t *>(
    reinterpret_cast<const int32_t *>(params.per_channel_output_shift.data()));
 
  assert(conv_params.activation.min <= conv_params.activation.max);
  const int batch_size = input_shape.dims(0);
  const int input_depth = input_shape.dims(3);
  const int output_depth = filter_shape.dims(0);
 
  cmsis_nn_dims input_dims;
  input_dims.n = batch_size;
  input_dims.h = input_shape.dims(1);
  input_dims.w = input_shape.dims(2);
  input_dims.c = input_depth;
 
  cmsis_nn_dims filter_dims;
  filter_dims.n = output_depth;
  filter_dims.h = filter_shape.dims(1);
  filter_dims.w = filter_shape.dims(2);
  filter_dims.c = input_depth;
 
  cmsis_nn_dims bias_dims;
  bias_dims.n = 1;
  bias_dims.h = 1;
  bias_dims.w = 1;
  bias_dims.c = output_depth;
 
  cmsis_nn_dims output_dims;
  output_dims.n = batch_size;
  output_dims.h = output_shape.dims(1);
  output_dims.w = output_shape.dims(2);
  output_dims.c = output_depth;
 
  auto buf_size = arm_depthwise_conv_wrapper_s8_get_buffer_size(&conv_params, &input_dims,
                                                                &filter_dims, &output_dims);
 
  auto buffer = std::make_unique<int8_t[]>(buf_size);
  assert(buffer != nullptr);
 
  cmsis_nn_context ctx;
  ctx.buf = buffer.get();
  ctx.size = buf_size;
 
  auto res = arm_depthwise_conv_wrapper_s8(&ctx, &conv_params, &quant_params, &input_dims,
                                           input_data, &filter_dims, filter_data, &bias_dims,
                                           bias_data, &output_dims, output_data);
 
  assert(res == ARM_CMSIS_NN_SUCCESS);
  if (res != ARM_CMSIS_NN_SUCCESS)
    return CmsisNNError;
  return Ok;
}
 
} // namespace pal
} // namespace execute
} // namespace onert_micro
 
#endif // ONERT_MICRO_EXECUTE_PAL_DEPTHWISE_CONV_2D_H