1 /*
2 * Copyright (c) 2019-2020 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 "src/core/NEON/kernels/NEConvertQuantizedSignednessKernel.h"
25
26 #include "arm_compute/core/Error.h"
27 #include "arm_compute/core/Helpers.h"
28 #include "arm_compute/core/ITensor.h"
29 #include "arm_compute/core/TensorInfo.h"
30 #include "arm_compute/core/Validate.h"
31 #include "arm_compute/core/Window.h"
32 #include "src/core/NEON/wrapper/wrapper.h"
33 #include "src/core/helpers/AutoConfiguration.h"
34 #include "src/core/helpers/WindowHelpers.h"
35
36 namespace arm_compute
37 {
38 namespace
39 {
validate_arguments(const ITensorInfo * input,const ITensorInfo * output)40 Status validate_arguments(const ITensorInfo *input, const ITensorInfo *output)
41 {
42 ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(input, output);
43 ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::QASYMM8, DataType::QASYMM8_SIGNED);
44
45 // Validate output if initialized
46 if(output->total_size() != 0)
47 {
48 ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::QASYMM8, DataType::QASYMM8_SIGNED);
49 ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DIMENSIONS(input->tensor_shape(), output->tensor_shape());
50 }
51
52 return Status{};
53 }
54
validate_and_configure_window(ITensorInfo * input,ITensorInfo * output)55 std::pair<Status, Window> validate_and_configure_window(ITensorInfo *input, ITensorInfo *output)
56 {
57 // Output auto inizialitation if not yet initialized
58 {
59 const bool is_input_signed = input->data_type() == DataType::QASYMM8_SIGNED;
60 const DataType dt = is_input_signed ? DataType::QASYMM8 : DataType::QASYMM8_SIGNED;
61 const UniformQuantizationInfo qinfo = input->quantization_info().uniform();
62 const int offset_correction = is_input_signed ? -128 : 128;
63 const QuantizationInfo corrected_qinfo = QuantizationInfo(qinfo.scale, qinfo.offset + offset_correction);
64
65 auto_init_if_empty(*output, input->clone()->set_data_type(dt).set_quantization_info(corrected_qinfo));
66 }
67
68 return std::make_pair(Status{}, calculate_max_window(*output));
69 }
70 } // namespace
71
NEConvertQuantizedSignednessKernel()72 NEConvertQuantizedSignednessKernel::NEConvertQuantizedSignednessKernel()
73 : _input(nullptr), _output(nullptr)
74 {
75 }
76
configure(const ITensor * input,ITensor * output)77 void NEConvertQuantizedSignednessKernel::configure(const ITensor *input, ITensor *output)
78 {
79 ARM_COMPUTE_ERROR_ON_NULLPTR(input, output);
80 ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(input->info(), output->info()));
81
82 _input = input;
83 _output = output;
84
85 std::pair<Status, Window> win_config = validate_and_configure_window(input->info(), output->info());
86 ARM_COMPUTE_ERROR_THROW_ON(win_config.first);
87 INEKernel::configure(win_config.second);
88 }
89
validate(const arm_compute::ITensorInfo * input,const arm_compute::ITensorInfo * output)90 Status NEConvertQuantizedSignednessKernel::validate(const arm_compute::ITensorInfo *input, const arm_compute::ITensorInfo *output)
91 {
92 ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(input, output));
93 ARM_COMPUTE_RETURN_ON_ERROR(validate_and_configure_window(input->clone().get(), output->clone().get()).first);
94 return Status{};
95 }
96
run(const Window & window,const ThreadInfo & info)97 void NEConvertQuantizedSignednessKernel::run(const Window &window, const ThreadInfo &info)
98 {
99 ARM_COMPUTE_UNUSED(info);
100 ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
101 ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window);
102
103 Window win_collapsed = window.collapse_if_possible(window, Window::DimZ);
104 win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1));
105
106 Iterator input(_input, win_collapsed);
107 Iterator output(_output, win_collapsed);
108
109 const int window_step_x = 16;
110 const auto window_start_x = static_cast<int>(window.x().start());
111 const auto window_end_x = static_cast<int>(window.x().end());
112
113 const uint8_t mask = 128;
114 const auto vmask = wrapper::vdup_n(mask, wrapper::traits::vector_128_tag{});
115
116 execute_window_loop(win_collapsed, [&](const Coordinates &)
117 {
118 const auto input_ptr = reinterpret_cast<const uint8_t *>(input.ptr());
119 const auto output_ptr = reinterpret_cast<uint8_t *>(output.ptr());
120
121 // Compute S elements per iteration
122 int x = window_start_x;
123 for(; x <= (window_end_x - window_step_x); x += window_step_x)
124 {
125 const auto vin = wrapper::vloadq(input_ptr + x);
126 wrapper::vstore(output_ptr + x, wrapper::veor(vin, vmask));
127 }
128
129 // Compute left-over elements
130 for(; x < window_end_x; ++x)
131 {
132 const uint8_t in = *(reinterpret_cast<const uint8_t *>(input_ptr + x));
133 *(output_ptr + x) = in ^ mask;
134 }
135 },
136 input, output);
137 }
138 } // namespace arm_compute
139