1 /*
2 * Copyright (c) 2017-2020 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 "QuantizationLayer.h"
25
26 #include <cmath>
27
28 namespace arm_compute
29 {
30 namespace test
31 {
32 namespace validation
33 {
34 namespace reference
35 {
36 template <typename Tin, typename Tout>
quantization_layer(const SimpleTensor<Tin> & src,DataType output_data_type,const QuantizationInfo & quantization_info)37 SimpleTensor<Tout> quantization_layer(const SimpleTensor<Tin> &src, DataType output_data_type, const QuantizationInfo &quantization_info)
38 {
39 // Create reference
40 SimpleTensor<Tout> dst{ src.shape(), output_data_type, 1, quantization_info };
41
42 const UniformQuantizationInfo qinfo = quantization_info.uniform();
43
44 #ifdef __aarch64__
45 constexpr auto rounding_policy = RoundingPolicy::TO_NEAREST_EVEN;
46 #else // __aarch64__
47 constexpr auto rounding_policy = RoundingPolicy::TO_ZERO;
48 #endif // __aarch64__
49
50 switch(output_data_type)
51 {
52 case DataType::QASYMM8:
53 #if defined(_OPENMP)
54 #pragma omp parallel for
55 #endif /* _OPENMP */
56 for(int i = 0; i < src.num_elements(); ++i)
57 {
58 dst[i] = quantize_qasymm8((src[i]), qinfo, rounding_policy);
59 }
60 break;
61 case DataType::QASYMM8_SIGNED:
62 #if defined(_OPENMP)
63 #pragma omp parallel for
64 #endif /* _OPENMP */
65 for(int i = 0; i < src.num_elements(); ++i)
66 {
67 #ifdef __aarch64__
68 dst[i] = quantize_qasymm8_signed((src[i]), qinfo, RoundingPolicy::TO_NEAREST_EVEN);
69 #else // __aarch64__
70 dst[i] = quantize_qasymm8_signed((src[i]), qinfo, RoundingPolicy::TO_ZERO);
71 #endif // __aarch64__
72 }
73 break;
74 case DataType::QASYMM16:
75 #if defined(_OPENMP)
76 #pragma omp parallel for
77 #endif /* _OPENMP */
78 for(int i = 0; i < src.num_elements(); ++i)
79 {
80 dst[i] = quantize_qasymm16((src[i]), qinfo, rounding_policy);
81 }
82 break;
83 default:
84 ARM_COMPUTE_ERROR("Unsupported output data type");
85 }
86 return dst;
87 }
88
89 template <>
quantization_layer(const SimpleTensor<uint8_t> & src,DataType output_data_type,const QuantizationInfo & quantization_info)90 SimpleTensor<uint8_t> quantization_layer(const SimpleTensor<uint8_t> &src, DataType output_data_type, const QuantizationInfo &quantization_info)
91 {
92 SimpleTensor<float> src_tmp = convert_from_asymmetric<uint8_t>(src);
93 return quantization_layer<float, uint8_t>(src_tmp, output_data_type, quantization_info);
94 }
95
96 template <>
quantization_layer(const SimpleTensor<uint8_t> & src,DataType output_data_type,const QuantizationInfo & quantization_info)97 SimpleTensor<int8_t> quantization_layer(const SimpleTensor<uint8_t> &src, DataType output_data_type, const QuantizationInfo &quantization_info)
98 {
99 SimpleTensor<float> src_tmp = convert_from_asymmetric<uint8_t>(src);
100 return quantization_layer<float, int8_t>(src_tmp, output_data_type, quantization_info);
101 }
102
103 template <>
quantization_layer(const SimpleTensor<int8_t> & src,DataType output_data_type,const QuantizationInfo & quantization_info)104 SimpleTensor<uint8_t> quantization_layer(const SimpleTensor<int8_t> &src, DataType output_data_type, const QuantizationInfo &quantization_info)
105 {
106 SimpleTensor<float> src_tmp = convert_from_asymmetric<int8_t>(src);
107 return quantization_layer<float, uint8_t>(src_tmp, output_data_type, quantization_info);
108 }
109
110 template <>
quantization_layer(const SimpleTensor<int8_t> & src,DataType output_data_type,const QuantizationInfo & quantization_info)111 SimpleTensor<int8_t> quantization_layer(const SimpleTensor<int8_t> &src, DataType output_data_type, const QuantizationInfo &quantization_info)
112 {
113 SimpleTensor<float> src_tmp = convert_from_asymmetric<int8_t>(src);
114 return quantization_layer<float, int8_t>(src_tmp, output_data_type, quantization_info);
115 }
116
117 template <>
quantization_layer(const SimpleTensor<uint8_t> & src,DataType output_data_type,const QuantizationInfo & quantization_info)118 SimpleTensor<uint16_t> quantization_layer(const SimpleTensor<uint8_t> &src, DataType output_data_type, const QuantizationInfo &quantization_info)
119 {
120 SimpleTensor<float> src_tmp = convert_from_asymmetric<uint8_t>(src);
121 return quantization_layer<float, uint16_t>(src_tmp, output_data_type, quantization_info);
122 }
123
124 template SimpleTensor<int8_t> quantization_layer(const SimpleTensor<half> &src, DataType output_data_type, const QuantizationInfo &quantization_info);
125 template SimpleTensor<int8_t> quantization_layer(const SimpleTensor<float> &src, DataType output_data_type, const QuantizationInfo &quantization_info);
126 template SimpleTensor<uint8_t> quantization_layer(const SimpleTensor<half> &src, DataType output_data_type, const QuantizationInfo &quantization_info);
127 template SimpleTensor<uint8_t> quantization_layer(const SimpleTensor<float> &src, DataType output_data_type, const QuantizationInfo &quantization_info);
128 template SimpleTensor<uint16_t> quantization_layer(const SimpleTensor<half> &src, DataType output_data_type, const QuantizationInfo &quantization_info);
129 template SimpleTensor<uint16_t> quantization_layer(const SimpleTensor<float> &src, DataType output_data_type, const QuantizationInfo &quantization_info);
130 } // namespace reference
131 } // namespace validation
132 } // namespace test
133 } // namespace arm_compute
134