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giuros01164a2722018-11-20 18:34:46 +00001/*
2 * Copyright (c) 2018 ARM Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24#include "helpers.h"
25
26#define SUB(x, y) (x - y)
27#define ADD(x, y) (x + y)
28#define MAX(x, y) max((x), (y))
29#define MIN(x, y) min((x), (y))
30#define SQUARED_DIFF(x, y) (x - y) * (x - y)
31#define DIV(x, y) (x / y)
32
33#define CONVERT_RTE(x, type) (convert_##type##_rte((x)))
34#define CONVERT_DOWN(x, type) CONVERT_RTE(x, type)
35
36#define OP_FUN_NAME_STR(op) elementwise_operation_##op##_quantized
37#define OP_FUN_NAME(op) OP_FUN_NAME_STR(op)
38
39#if defined(OP) && defined(VEC_SIZE) && defined(OFFSET_IN1) && defined(OFFSET_IN2) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_IN2) && defined(SCALE_OUT)
40
41#define VEC_FLOAT VEC_DATA_TYPE(float, VEC_SIZE)
42#define VEC_INT VEC_DATA_TYPE(int, VEC_SIZE)
43#define VEC_UCHAR VEC_DATA_TYPE(uchar, VEC_SIZE)
44
45/** This function executes an element-wise operation among two tensors.
46 *
47 * @attention The quantization offset of the first operand must be passed at compile time using -DOFFSET_IN1, i.e. -DOFFSET_IN1=10
48 * @attention The quantization offset of the second operand must be passed at compile time using -DOFFSET_IN2, i.e. -DOFFSET_IN2=10
49 * @attention The quantization offset of the output must be passed at compile time using -DOFFSET_OUT, i.e. -DOFFSET_OUT=10
50 * @attention The quantization scale of the first operand must be passed at compile time using -DSCALE_IN1, i.e. -DSCALE_IN1=10
51 * @attention The quantization scale of the second operand must be passed at compile time using -DSCALE_IN2, i.e. -DSCALE_IN2=10
52 * @attention The quantization scale of the output must be passed at compile time using -DSCALE_OUT, i.e. -DSCALE_OUT=10
53 * @attention To perform saturating operation -DSATURATE has to be passed to the compiler otherwise wrapping policy will be used.
54 * @attention Vector size should be given as a preprocessor argument using -DVEC_SIZE=size. e.g. -DVEC_SIZE=16
55 * @attention The element-wise operation to be executed has to be passed at compile time using -DOP (e.g., -DOP=ADD)
56 *
57 * @param[in] in1_ptr Pointer to the source tensor. Supported data types: QASYMM8
58 * @param[in] in1_stride_x Stride of the source tensor in X dimension (in bytes)
59 * @param[in] in1_step_x in1_stride_x * number of elements along X processed per workitem(in bytes)
60 * @param[in] in1_stride_y Stride of the source tensor in Y dimension (in bytes)
61 * @param[in] in1_step_y in1_stride_y * number of elements along Y processed per workitem(in bytes)
62 * @param[in] in1_stride_z Stride of the source tensor in Z dimension (in bytes)
63 * @param[in] in1_step_z in1_stride_z * number of elements along Z processed per workitem(in bytes)
64 * @param[in] in1_offset_first_element_in_bytes The offset of the first element in the source tensor
65 * @param[in] in2_ptr Pointer to the source tensor. Supported data types: same as @p in1_ptr
66 * @param[in] in2_stride_x Stride of the source tensor in X dimension (in bytes)
67 * @param[in] in2_step_x in2_stride_x * number of elements along X processed per workitem(in bytes)
68 * @param[in] in2_stride_y Stride of the source tensor in Y dimension (in bytes)
69 * @param[in] in2_step_y in2_stride_y * number of elements along Y processed per workitem(in bytes)
70 * @param[in] in2_stride_z Stride of the source tensor in Z dimension (in bytes)
71 * @param[in] in2_step_z in2_stride_z * number of elements along Z processed per workitem(in bytes)
72 * @param[in] in2_offset_first_element_in_bytes The offset of the first element in the source tensor
73 * @param[out] out_ptr Pointer to the destination tensor. Supported data types: same as @p in1_ptr
74 * @param[in] out_stride_x Stride of the destination tensor in X dimension (in bytes)
75 * @param[in] out_step_x out_stride_x * number of elements along X processed per workitem(in bytes)
76 * @param[in] out_stride_y Stride of the destination tensor in Y dimension (in bytes)
77 * @param[in] out_step_y out_stride_y * number of elements along Y processed per workitem(in bytes)
78 * @param[in] out_stride_z Stride of the source tensor in Z dimension (in bytes)
79 * @param[in] out_step_z out_stride_z * number of elements along Z processed per workitem(in bytes)
80 * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination tensor
81 */
82__kernel void OP_FUN_NAME(OP)(
83 TENSOR3D_DECLARATION(in1),
84 TENSOR3D_DECLARATION(in2),
85 TENSOR3D_DECLARATION(out))
86{
87 // Get pixels pointer
88 Tensor3D in1 = CONVERT_TO_TENSOR3D_STRUCT(in1);
89 Tensor3D in2 = CONVERT_TO_TENSOR3D_STRUCT(in2);
90 Tensor3D out = CONVERT_TO_TENSOR3D_STRUCT(out);
91
92 VEC_INT in_a = CONVERT(VLOAD(VEC_SIZE)(0, (__global uchar *)in1.ptr), VEC_INT);
93 VEC_INT in_b = CONVERT(VLOAD(VEC_SIZE)(0, (__global uchar *)in2.ptr), VEC_INT);
94
95 in_a = SUB(in_a, (VEC_INT)((int)OFFSET_IN1));
96 in_b = SUB(in_b, (VEC_INT)((int)OFFSET_IN2));
97
98 const VEC_FLOAT in1f32 = CONVERT(in_a, VEC_FLOAT) * (VEC_FLOAT)((float)SCALE_IN1);
99 const VEC_FLOAT in2f32 = CONVERT(in_b, VEC_FLOAT) * (VEC_FLOAT)((float)SCALE_IN2);
100 const VEC_FLOAT qresf32 = OP(in1f32, in2f32) / ((VEC_FLOAT)(float)SCALE_OUT) + ((VEC_FLOAT)((float)OFFSET_OUT));
101 const VEC_UCHAR res = CONVERT_SAT(CONVERT_DOWN(qresf32, VEC_INT), VEC_UCHAR);
102
103 // Store result
104 VSTORE(VEC_SIZE)
105 (res, 0, (__global uchar *)out.ptr);
106}
107#endif /* defined(OFFSET_IN1) && defined(OFFSET_IN2) && defined(OFFSET_OUT) && defined(SCALE_IN1) && defined(SCALE_IN2) && defined(SCALE_OUT) */