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/*
* Copyright (c) 2016-2018 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.
*/
#include "helpers.h"
#ifdef SATURATE
#define ADD(x, y) add_sat((x), (y))
#define SUB(x, y) sub_sat((x), (y))
#else /* SATURATE */
#define ADD(x, y) (x) + (y)
#define SUB(x, y) (x) - (y)
#endif /* SATURATE */
#if defined(OFFSET_IN1)
/** This function adds two tensors.
*
* @attention The quantization offset must be passed at compile time using -DOFFSET_IN1, i.e. -DOFFSET_IN1=10
* @attention To perform saturating operation -DSATURATE has to be passed to the compiler otherwise wrapping policy will be used.
*
* @param[in] in1_ptr Pointer to the source tensor. Supported data types: QASYMM8
* @param[in] in1_stride_x Stride of the source tensor in X dimension (in bytes)
* @param[in] in1_step_x in1_stride_x * number of elements along X processed per workitem(in bytes)
* @param[in] in1_stride_y Stride of the source tensor in Y dimension (in bytes)
* @param[in] in1_step_y in1_stride_y * number of elements along Y processed per workitem(in bytes)
* @param[in] in1_stride_z Stride of the source tensor in Z dimension (in bytes)
* @param[in] in1_step_z in1_stride_z * number of elements along Z processed per workitem(in bytes)
* @param[in] in1_offset_first_element_in_bytes The offset of the first element in the source tensor
* @param[in] in2_ptr Pointer to the source tensor. Supported data types: same as @p in1_ptr
* @param[in] in2_stride_x Stride of the source tensor in X dimension (in bytes)
* @param[in] in2_step_x in2_stride_x * number of elements along X processed per workitem(in bytes)
* @param[in] in2_stride_y Stride of the source tensor in Y dimension (in bytes)
* @param[in] in2_step_y in2_stride_y * number of elements along Y processed per workitem(in bytes)
* @param[in] in2_stride_z Stride of the source tensor in Z dimension (in bytes)
* @param[in] in2_step_z in2_stride_z * number of elements along Z processed per workitem(in bytes)
* @param[in] in2_offset_first_element_in_bytes The offset of the first element in the source tensor
* @param[out] out_ptr Pointer to the destination tensor. Supported data types: same as @p in1_ptr
* @param[in] out_stride_x Stride of the destination tensor in X dimension (in bytes)
* @param[in] out_step_x out_stride_x * number of elements along X processed per workitem(in bytes)
* @param[in] out_stride_y Stride of the destination tensor in Y dimension (in bytes)
* @param[in] out_step_y out_stride_y * number of elements along Y processed per workitem(in bytes)
* @param[in] out_stride_z Stride of the source tensor in Z dimension (in bytes)
* @param[in] out_step_z out_stride_z * number of elements along Z processed per workitem(in bytes)
* @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination tensor
*/
__kernel void arithmetic_add_quantized(
TENSOR3D_DECLARATION(in1),
TENSOR3D_DECLARATION(in2),
TENSOR3D_DECLARATION(out))
{
// Get pixels pointer
Tensor3D in1 = CONVERT_TO_TENSOR3D_STRUCT(in1);
Tensor3D in2 = CONVERT_TO_TENSOR3D_STRUCT(in2);
Tensor3D out = CONVERT_TO_TENSOR3D_STRUCT(out);
int16 in_a = CONVERT(vload16(0, (__global uchar *)in1.ptr), int16);
int16 in_b = CONVERT(vload16(0, (__global uchar *)in2.ptr), int16);
in_a = SUB(in_a, (int16)((int)OFFSET_IN1));
in_b = SUB(in_b, (int16)((int)OFFSET_IN2));
const float16 in1f32 = convert_float16(in_a) * (float16)((float)SCALE_IN1);
const float16 in2f32 = convert_float16(in_b) * (float16)((float)SCALE_IN2);
const float16 qresf32 = (in1f32 + in2f32) / ((float16)(float)SCALE_OUT) + ((float16)((float16)OFFSET_OUT));
const uchar16 res = convert_uchar16_sat(convert_int16_rte(qresf32));
// Store result
vstore16(res, 0, (__global uchar *)out.ptr);
}
#endif /* defined(OFFSET) */
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