Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016, 2017 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 | */ |
Jaroslaw Rzepecki | 0a878ae | 2017-11-22 17:16:39 +0000 | [diff] [blame^] | 24 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 25 | #include "arm_compute/core/Utils.h" |
| 26 | |
| 27 | #include "arm_compute/core/FixedPoint.h" |
| 28 | |
Jaroslaw Rzepecki | 0a878ae | 2017-11-22 17:16:39 +0000 | [diff] [blame^] | 29 | #include "support/ToolchainSupport.h" |
| 30 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 31 | #include <algorithm> |
| 32 | #include <cmath> |
| 33 | #include <cstdint> |
| 34 | #include <fstream> |
| 35 | #include <map> |
| 36 | #include <string> |
| 37 | |
| 38 | using namespace arm_compute; |
| 39 | |
| 40 | std::string arm_compute::build_information() |
| 41 | { |
| 42 | static const std::string information = |
| 43 | #include "arm_compute_version.embed" |
| 44 | ; |
| 45 | return information; |
| 46 | } |
| 47 | |
| 48 | std::string arm_compute::read_file(const std::string &filename, bool binary) |
| 49 | { |
| 50 | std::string out; |
| 51 | std::ifstream fs; |
| 52 | |
| 53 | try |
| 54 | { |
| 55 | fs.exceptions(std::ifstream::failbit | std::ifstream::badbit); |
| 56 | std::ios_base::openmode mode = std::ios::in; |
| 57 | |
| 58 | if(binary) |
| 59 | { |
| 60 | mode |= std::ios::binary; |
| 61 | } |
| 62 | |
| 63 | fs.open(filename, mode); |
| 64 | |
| 65 | // Go to the end of the file |
| 66 | fs.seekg(0, std::ios::end); |
| 67 | // Reserve the memory required to store the file's content |
| 68 | out.reserve(fs.tellg()); |
| 69 | // Go back to the beginning of the file |
| 70 | fs.seekg(0, std::ios::beg); |
| 71 | // Copy the content of the file |
| 72 | out.assign(std::istreambuf_iterator<char>(fs), std::istreambuf_iterator<char>()); |
| 73 | } |
| 74 | catch(const std::ifstream::failure &e) |
| 75 | { |
| 76 | ARM_COMPUTE_ERROR("Accessing %s: %s", filename.c_str(), e.what()); |
| 77 | } |
| 78 | |
| 79 | return out; |
| 80 | } |
| 81 | |
| 82 | const std::string &arm_compute::string_from_format(Format format) |
| 83 | { |
| 84 | static std::map<Format, const std::string> formats_map = |
| 85 | { |
| 86 | { Format::UNKNOWN, "UNKNOWN" }, |
| 87 | { Format::U8, "U8" }, |
| 88 | { Format::S16, "S16" }, |
| 89 | { Format::U16, "U16" }, |
| 90 | { Format::S32, "S32" }, |
| 91 | { Format::U32, "U32" }, |
| 92 | { Format::F16, "F16" }, |
| 93 | { Format::F32, "F32" }, |
| 94 | { Format::UV88, "UV88" }, |
| 95 | { Format::RGB888, "RGB888" }, |
| 96 | { Format::RGBA8888, "RGBA8888" }, |
| 97 | { Format::YUV444, "YUV444" }, |
| 98 | { Format::YUYV422, "YUYV422" }, |
| 99 | { Format::NV12, "NV12" }, |
| 100 | { Format::NV21, "NV21" }, |
| 101 | { Format::IYUV, "IYUV" }, |
| 102 | { Format::UYVY422, "UYVY422" } |
| 103 | }; |
| 104 | |
| 105 | return formats_map[format]; |
| 106 | } |
| 107 | |
| 108 | const std::string &arm_compute::string_from_channel(Channel channel) |
| 109 | { |
| 110 | static std::map<Channel, const std::string> channels_map = |
| 111 | { |
| 112 | { Channel::UNKNOWN, "UNKNOWN" }, |
| 113 | { Channel::R, "R" }, |
| 114 | { Channel::G, "G" }, |
| 115 | { Channel::B, "B" }, |
| 116 | { Channel::A, "A" }, |
| 117 | { Channel::Y, "Y" }, |
| 118 | { Channel::U, "U" }, |
| 119 | { Channel::V, "V" }, |
| 120 | { Channel::C0, "C0" }, |
| 121 | { Channel::C1, "C1" }, |
| 122 | { Channel::C2, "C2" }, |
| 123 | { Channel::C3, "C3" } |
| 124 | }; |
| 125 | |
| 126 | return channels_map[channel]; |
| 127 | } |
| 128 | |
| 129 | const std::string &arm_compute::string_from_data_type(DataType dt) |
| 130 | { |
| 131 | static std::map<DataType, const std::string> dt_map = |
| 132 | { |
| 133 | { DataType::UNKNOWN, "UNKNOWN" }, |
| 134 | { DataType::S8, "S8" }, |
| 135 | { DataType::U8, "U8" }, |
| 136 | { DataType::QS8, "QS8" }, |
| 137 | { DataType::S16, "S16" }, |
| 138 | { DataType::U16, "U16" }, |
| 139 | { DataType::QS16, "QS16" }, |
| 140 | { DataType::S32, "S32" }, |
| 141 | { DataType::U32, "U32" }, |
| 142 | { DataType::S64, "S64" }, |
| 143 | { DataType::U64, "U64" }, |
| 144 | { DataType::F16, "F16" }, |
| 145 | { DataType::F32, "F32" }, |
| 146 | { DataType::F64, "F64" }, |
| 147 | { DataType::SIZET, "SIZET" }, |
| 148 | }; |
| 149 | |
| 150 | return dt_map[dt]; |
| 151 | } |
| 152 | |
| 153 | const std::string &arm_compute::string_from_activation_func(ActivationLayerInfo::ActivationFunction act) |
| 154 | { |
| 155 | static std::map<ActivationLayerInfo::ActivationFunction, const std::string> act_map = |
| 156 | { |
| 157 | { ActivationLayerInfo::ActivationFunction::ABS, "ABS" }, |
| 158 | { ActivationLayerInfo::ActivationFunction::LINEAR, "LINEAR" }, |
| 159 | { ActivationLayerInfo::ActivationFunction::LOGISTIC, "LOGISTIC" }, |
| 160 | { ActivationLayerInfo::ActivationFunction::RELU, "RELU" }, |
| 161 | { ActivationLayerInfo::ActivationFunction::BOUNDED_RELU, "BRELU" }, |
Georgios Pinitas | 64ebe5b | 2017-09-01 17:44:24 +0100 | [diff] [blame] | 162 | { ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU, "LU_BRELU" }, |
Georgios Pinitas | 579c049 | 2017-07-12 16:12:12 +0100 | [diff] [blame] | 163 | { ActivationLayerInfo::ActivationFunction::LEAKY_RELU, "LRELU" }, |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 164 | { ActivationLayerInfo::ActivationFunction::SOFT_RELU, "SRELU" }, |
| 165 | { ActivationLayerInfo::ActivationFunction::SQRT, "SQRT" }, |
| 166 | { ActivationLayerInfo::ActivationFunction::SQUARE, "SQUARE" }, |
| 167 | { ActivationLayerInfo::ActivationFunction::TANH, "TANH" }, |
| 168 | }; |
| 169 | |
| 170 | return act_map[act]; |
| 171 | } |
| 172 | |
| 173 | const std::string &arm_compute::string_from_matrix_pattern(MatrixPattern pattern) |
| 174 | { |
| 175 | static std::map<MatrixPattern, const std::string> pattern_map = |
| 176 | { |
| 177 | { MatrixPattern::BOX, "BOX" }, |
| 178 | { MatrixPattern::CROSS, "CROSS" }, |
| 179 | { MatrixPattern::DISK, "DISK" }, |
| 180 | { MatrixPattern::OTHER, "OTHER" }, |
| 181 | }; |
| 182 | |
| 183 | return pattern_map[pattern]; |
| 184 | } |
| 185 | |
| 186 | const std::string &arm_compute::string_from_non_linear_filter_function(NonLinearFilterFunction function) |
| 187 | { |
| 188 | static std::map<NonLinearFilterFunction, const std::string> func_map = |
| 189 | { |
| 190 | { NonLinearFilterFunction::MAX, "MAX" }, |
| 191 | { NonLinearFilterFunction::MEDIAN, "MEDIAN" }, |
| 192 | { NonLinearFilterFunction::MIN, "MIN" }, |
| 193 | }; |
| 194 | |
| 195 | return func_map[function]; |
| 196 | } |
| 197 | |
| 198 | const std::string &arm_compute::string_from_interpolation_policy(InterpolationPolicy policy) |
| 199 | { |
| 200 | static std::map<InterpolationPolicy, const std::string> interpolation_policy_map = |
| 201 | { |
| 202 | { InterpolationPolicy::AREA, "AREA" }, |
| 203 | { InterpolationPolicy::BILINEAR, "BILINEAR" }, |
| 204 | { InterpolationPolicy::NEAREST_NEIGHBOR, "NEAREST_NEIGHBOUR" }, |
| 205 | }; |
| 206 | |
| 207 | return interpolation_policy_map[policy]; |
| 208 | } |
| 209 | |
| 210 | const std::string &arm_compute::string_from_border_mode(BorderMode border_mode) |
| 211 | { |
| 212 | static std::map<BorderMode, const std::string> border_mode_map = |
| 213 | { |
| 214 | { BorderMode::UNDEFINED, "UNDEFINED" }, |
| 215 | { BorderMode::CONSTANT, "CONSTANT" }, |
| 216 | { BorderMode::REPLICATE, "REPLICATE" }, |
| 217 | }; |
| 218 | |
| 219 | return border_mode_map[border_mode]; |
| 220 | } |
| 221 | |
| 222 | const std::string &arm_compute::string_from_norm_type(NormType type) |
| 223 | { |
| 224 | static std::map<NormType, const std::string> norm_type_map = |
| 225 | { |
| 226 | { NormType::IN_MAP_1D, "IN_MAP_1D" }, |
| 227 | { NormType::IN_MAP_2D, "IN_MAP_2D" }, |
| 228 | { NormType::CROSS_MAP, "CROSS_MAP" }, |
| 229 | }; |
| 230 | |
| 231 | return norm_type_map[type]; |
| 232 | } |
| 233 | |
Georgios Pinitas | cdf5145 | 2017-08-31 14:21:36 +0100 | [diff] [blame] | 234 | const std::string &arm_compute::string_from_pooling_type(PoolingType type) |
| 235 | { |
| 236 | static std::map<PoolingType, const std::string> pool_type_map = |
| 237 | { |
| 238 | { PoolingType::MAX, "MAX" }, |
| 239 | { PoolingType::AVG, "AVG" }, |
| 240 | { PoolingType::L2, "L2" }, |
| 241 | }; |
| 242 | |
| 243 | return pool_type_map[type]; |
| 244 | } |
| 245 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 246 | std::string arm_compute::lower_string(const std::string &val) |
| 247 | { |
| 248 | std::string res = val; |
| 249 | std::transform(res.begin(), res.end(), res.begin(), ::tolower); |
| 250 | return res; |
| 251 | } |
| 252 | |
Pablo Tello | f5f34bb | 2017-08-22 13:34:13 +0100 | [diff] [blame] | 253 | TensorShape arm_compute::deconvolution_output_shape(const std::pair<unsigned int, unsigned int> &out_dims, TensorShape input, TensorShape weights) |
| 254 | { |
| 255 | TensorShape out_shape(input); |
| 256 | out_shape.set(0, out_dims.first); |
| 257 | out_shape.set(1, out_dims.second); |
| 258 | out_shape.set(2, weights[3]); |
| 259 | return out_shape; |
| 260 | } |
| 261 | |
| 262 | const std::pair<unsigned int, unsigned int> arm_compute::deconvolution_output_dimensions( |
| 263 | unsigned int in_width, unsigned int in_height, unsigned int kernel_width, unsigned int kernel_height, unsigned int padx, unsigned int pady, |
| 264 | unsigned int ax, unsigned int ay, float upscalex, float upscaley, DimensionRoundingType round) |
| 265 | { |
| 266 | ARM_COMPUTE_ERROR_ON(in_width < 1 || in_height < 1); |
| 267 | ARM_COMPUTE_ERROR_ON(((in_width - 1) * upscalex + kernel_width + ax) < 2.f * padx); |
| 268 | ARM_COMPUTE_ERROR_ON(((in_height - 1) * upscaley + kernel_height + ay) < 2.f * pady); |
| 269 | const float fw = (in_width - 1) * upscalex - 2.f * padx + kernel_width + ax; |
| 270 | const float fh = (in_height - 1) * upscaley - 2.f * pady + kernel_height + ay; |
| 271 | int w = 0; |
| 272 | int h = 0; |
| 273 | switch(round) |
| 274 | { |
| 275 | case DimensionRoundingType::FLOOR: |
| 276 | w = std::floor(fw); |
| 277 | h = std::floor(fh); |
| 278 | break; |
| 279 | case DimensionRoundingType::CEIL: |
| 280 | w = std::ceil(fw); |
| 281 | h = std::ceil(fh); |
| 282 | break; |
| 283 | default: |
| 284 | ARM_COMPUTE_ERROR("Not supported"); |
| 285 | break; |
| 286 | } |
| 287 | return std::make_pair<unsigned int, unsigned int>(w, h); |
| 288 | } |
| 289 | |
Gian Marco Iodice | 4e28869 | 2017-06-27 11:41:59 +0100 | [diff] [blame] | 290 | const std::pair<unsigned int, unsigned int> arm_compute::scaled_dimensions(unsigned int width, unsigned int height, |
| 291 | unsigned int kernel_width, unsigned int kernel_height, |
| 292 | const PadStrideInfo &pad_stride_info) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 293 | { |
Jaroslaw Rzepecki | a1ed41f | 2017-10-13 11:13:58 +0100 | [diff] [blame] | 294 | const unsigned int pad_left = pad_stride_info.pad_left(); |
| 295 | const unsigned int pad_top = pad_stride_info.pad_top(); |
| 296 | const unsigned int pad_right = pad_stride_info.pad_right(); |
| 297 | const unsigned int pad_bottom = pad_stride_info.pad_bottom(); |
| 298 | const unsigned int stride_x = pad_stride_info.stride().first; |
| 299 | const unsigned int stride_y = pad_stride_info.stride().second; |
| 300 | unsigned int w = 0; |
| 301 | unsigned int h = 0; |
Gian Marco Iodice | 4e28869 | 2017-06-27 11:41:59 +0100 | [diff] [blame] | 302 | switch(pad_stride_info.round()) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 303 | { |
| 304 | case DimensionRoundingType::FLOOR: |
Jaroslaw Rzepecki | a1ed41f | 2017-10-13 11:13:58 +0100 | [diff] [blame] | 305 | w = static_cast<unsigned int>(std::floor((static_cast<float>(width + pad_left + pad_right - kernel_width) / stride_x) + 1)); |
| 306 | h = static_cast<unsigned int>(std::floor((static_cast<float>(height + pad_top + pad_bottom - kernel_height) / stride_y) + 1)); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 307 | break; |
| 308 | case DimensionRoundingType::CEIL: |
Jaroslaw Rzepecki | a1ed41f | 2017-10-13 11:13:58 +0100 | [diff] [blame] | 309 | w = static_cast<unsigned int>(std::ceil((static_cast<float>(width + pad_left + pad_right - kernel_width) / stride_x) + 1)); |
| 310 | h = static_cast<unsigned int>(std::ceil((static_cast<float>(height + pad_top + pad_bottom - kernel_height) / stride_y) + 1)); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 311 | break; |
| 312 | default: |
| 313 | ARM_COMPUTE_ERROR("Unsupported rounding type"); |
| 314 | } |
| 315 | |
| 316 | // Make sure that border operations will start from inside the input and not the padded area |
Jaroslaw Rzepecki | a1ed41f | 2017-10-13 11:13:58 +0100 | [diff] [blame] | 317 | if(((w - 1) * stride_x) >= (width + pad_left)) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 318 | { |
| 319 | --w; |
| 320 | } |
Jaroslaw Rzepecki | a1ed41f | 2017-10-13 11:13:58 +0100 | [diff] [blame] | 321 | if(((h - 1) * stride_y) >= (height + pad_top)) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 322 | { |
| 323 | --h; |
| 324 | } |
Jaroslaw Rzepecki | a1ed41f | 2017-10-13 11:13:58 +0100 | [diff] [blame] | 325 | ARM_COMPUTE_ERROR_ON(((w - 1) * stride_x) >= (width + pad_left)); |
| 326 | ARM_COMPUTE_ERROR_ON(((h - 1) * stride_y) >= (height + pad_top)); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 327 | |
| 328 | return std::make_pair(w, h); |
| 329 | } |
| 330 | |
| 331 | void arm_compute::print_consecutive_elements(std::ostream &s, DataType dt, const uint8_t *ptr, unsigned int n, int stream_width, const std::string &element_delim) |
| 332 | { |
| 333 | switch(dt) |
| 334 | { |
| 335 | case DataType::U8: |
| 336 | print_consecutive_elements_impl<uint8_t>(s, ptr, n, stream_width, element_delim); |
| 337 | break; |
| 338 | case DataType::QS8: |
| 339 | case DataType::S8: |
| 340 | print_consecutive_elements_impl<int8_t>(s, reinterpret_cast<const int8_t *>(ptr), n, stream_width, element_delim); |
| 341 | break; |
| 342 | case DataType::U16: |
| 343 | print_consecutive_elements_impl<uint16_t>(s, reinterpret_cast<const uint16_t *>(ptr), n, stream_width, element_delim); |
| 344 | break; |
Georgios Pinitas | ccc65d4 | 2017-06-27 17:39:11 +0100 | [diff] [blame] | 345 | case DataType::QS16: |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 346 | case DataType::S16: |
| 347 | print_consecutive_elements_impl<int16_t>(s, reinterpret_cast<const int16_t *>(ptr), n, stream_width, element_delim); |
| 348 | break; |
| 349 | case DataType::U32: |
| 350 | print_consecutive_elements_impl<uint32_t>(s, reinterpret_cast<const uint32_t *>(ptr), n, stream_width, element_delim); |
| 351 | break; |
| 352 | case DataType::S32: |
| 353 | print_consecutive_elements_impl<int32_t>(s, reinterpret_cast<const int32_t *>(ptr), n, stream_width, element_delim); |
| 354 | break; |
| 355 | case DataType::F32: |
| 356 | print_consecutive_elements_impl<float>(s, reinterpret_cast<const float *>(ptr), n, stream_width, element_delim); |
| 357 | break; |
| 358 | case DataType::F16: |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 359 | print_consecutive_elements_impl<half>(s, reinterpret_cast<const half *>(ptr), n, stream_width, element_delim); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 360 | break; |
| 361 | default: |
| 362 | ARM_COMPUTE_ERROR("Undefined element size for given data type"); |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | int arm_compute::max_consecutive_elements_display_width(std::ostream &s, DataType dt, const uint8_t *ptr, unsigned int n) |
| 367 | { |
| 368 | switch(dt) |
| 369 | { |
| 370 | case DataType::U8: |
| 371 | return max_consecutive_elements_display_width_impl<uint8_t>(s, ptr, n); |
| 372 | case DataType::QS8: |
| 373 | case DataType::S8: |
| 374 | return max_consecutive_elements_display_width_impl<int8_t>(s, reinterpret_cast<const int8_t *>(ptr), n); |
| 375 | case DataType::U16: |
| 376 | return max_consecutive_elements_display_width_impl<uint16_t>(s, reinterpret_cast<const uint16_t *>(ptr), n); |
Georgios Pinitas | ccc65d4 | 2017-06-27 17:39:11 +0100 | [diff] [blame] | 377 | case DataType::QS16: |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 378 | case DataType::S16: |
| 379 | return max_consecutive_elements_display_width_impl<int16_t>(s, reinterpret_cast<const int16_t *>(ptr), n); |
| 380 | case DataType::U32: |
| 381 | return max_consecutive_elements_display_width_impl<uint32_t>(s, reinterpret_cast<const uint32_t *>(ptr), n); |
| 382 | case DataType::S32: |
| 383 | return max_consecutive_elements_display_width_impl<int32_t>(s, reinterpret_cast<const int32_t *>(ptr), n); |
| 384 | case DataType::F32: |
| 385 | return max_consecutive_elements_display_width_impl<float>(s, reinterpret_cast<const float *>(ptr), n); |
| 386 | case DataType::F16: |
Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame] | 387 | return max_consecutive_elements_display_width_impl<half>(s, reinterpret_cast<const half *>(ptr), n); |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 388 | default: |
| 389 | ARM_COMPUTE_ERROR("Undefined element size for given data type"); |
| 390 | } |
Georgios Pinitas | 3faea25 | 2017-10-30 14:13:50 +0000 | [diff] [blame] | 391 | return 0; |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 392 | } |
Jaroslaw Rzepecki | 0a878ae | 2017-11-22 17:16:39 +0000 | [diff] [blame^] | 393 | |
| 394 | int arm_compute::round(float x, RoundingPolicy rounding_policy) |
| 395 | { |
| 396 | using namespace std; |
| 397 | int rounded = 0; |
| 398 | switch(rounding_policy) |
| 399 | { |
| 400 | case RoundingPolicy::TO_ZERO: |
| 401 | { |
| 402 | rounded = static_cast<int>(x); |
| 403 | break; |
| 404 | } |
| 405 | case RoundingPolicy::TO_NEAREST_UP: |
| 406 | { |
| 407 | rounded = static_cast<int>(support::cpp11::round(x)); |
| 408 | break; |
| 409 | } |
| 410 | case RoundingPolicy::TO_NEAREST_EVEN: |
| 411 | { |
| 412 | ARM_COMPUTE_ERROR("TO_NEAREST_EVEN rounding policy is not supported."); |
| 413 | break; |
| 414 | } |
| 415 | default: |
| 416 | { |
| 417 | ARM_COMPUTE_ERROR("Unsupported rounding policy."); |
| 418 | break; |
| 419 | } |
| 420 | } |
| 421 | |
| 422 | return rounded; |
| 423 | } |