Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 1 | /* |
Michalis Spyrou | 5237e01 | 2018-01-17 09:40:27 +0000 | [diff] [blame] | 2 | * Copyright (c) 2016-2018 ARM Limited. |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 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 | #ifndef ARM_COMPUTE_HELPER_H |
| 25 | #define ARM_COMPUTE_HELPER_H |
| 26 | |
Matthew Bentham | 6f31f8c | 2017-10-27 11:50:06 +0100 | [diff] [blame] | 27 | #if defined(ARM_COMPUTE_OPENCL_FP16_ENABLED) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 28 | #pragma OPENCL EXTENSION cl_khr_fp16 : enable |
Matthew Bentham | 6f31f8c | 2017-10-27 11:50:06 +0100 | [diff] [blame] | 29 | #endif // defined(ARM_COMPUTE_OPENCL_FP16_ENABLED) |
| 30 | |
Michalis Spyrou | e03342e | 2018-01-15 14:39:13 +0000 | [diff] [blame] | 31 | #if defined(ARM_COMPUTE_OPENCL_DOT8_ENABLED) |
| 32 | #pragma OPENCL EXTENSION cl_arm_integer_dot_product_int8 : enable |
Giorgio Arena | 6200fa4 | 2018-07-06 17:06:36 +0100 | [diff] [blame] | 33 | #pragma OPENCL EXTENSION cl_arm_integer_dot_product_accumulate_int8 : enable |
Michalis Spyrou | e03342e | 2018-01-15 14:39:13 +0000 | [diff] [blame] | 34 | #endif // defined(ARM_COMPUTE_OPENCL_DOT8_ENABLED) |
| 35 | |
steniu01 | f01f9de | 2017-09-27 17:00:11 +0100 | [diff] [blame] | 36 | #if defined(ARM_COMPUTE_DEBUG_ENABLED) |
Vidhya Sudhan Loganathan | eb8a399 | 2018-04-10 12:23:22 +0100 | [diff] [blame] | 37 | #if defined(cl_arm_printf) |
steniu01 | f01f9de | 2017-09-27 17:00:11 +0100 | [diff] [blame] | 38 | #pragma OPENCL EXTENSION cl_arm_printf : enable |
Vidhya Sudhan Loganathan | eb8a399 | 2018-04-10 12:23:22 +0100 | [diff] [blame] | 39 | #endif // defined(cl_arm_printf) |
steniu01 | f01f9de | 2017-09-27 17:00:11 +0100 | [diff] [blame] | 40 | #endif // defined(ARM_COMPUTE_DEBUG_ENABLED) |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 41 | |
Georgios Pinitas | e5f8fd6 | 2017-06-23 18:03:44 +0100 | [diff] [blame] | 42 | #define EXPAND(x) x |
| 43 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 44 | #define CLAMP(x, min_val, max_val) min(max(x, min_val), max_val) |
| 45 | |
Georgios Pinitas | ac4e873 | 2017-07-05 17:02:25 +0100 | [diff] [blame] | 46 | #define VLOAD_STR(size) vload##size |
| 47 | #define VLOAD(size) VLOAD_STR(size) |
| 48 | |
| 49 | #define VSTORE_STR(size) vstore##size |
| 50 | #define VSTORE(size) VSTORE_STR(size) |
| 51 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 52 | #define VEC_DATA_TYPE_STR(type, size) type##size |
| 53 | #define VEC_DATA_TYPE(type, size) VEC_DATA_TYPE_STR(type, size) |
| 54 | |
Chunosov | d6afedc | 2017-11-06 22:09:45 +0700 | [diff] [blame] | 55 | #define CL_VEC_DATA_TYPE_STR(type, size) type##size |
| 56 | #define CL_VEC_DATA_TYPE(type, size) CL_VEC_DATA_TYPE_STR(type, size) |
| 57 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 58 | #define CONVERT_STR(x, type) (convert_##type((x))) |
| 59 | #define CONVERT(x, type) CONVERT_STR(x, type) |
| 60 | |
| 61 | #define CONVERT_SAT_STR(x, type) (convert_##type##_sat((x))) |
| 62 | #define CONVERT_SAT(x, type) CONVERT_SAT_STR(x, type) |
| 63 | |
| 64 | #define CONVERT_SAT_ROUND_STR(x, type, round) (convert_##type##_sat_##round((x))) |
| 65 | #define CONVERT_SAT_ROUND(x, type, round) CONVERT_SAT_ROUND_STR(x, type, round) |
| 66 | |
| 67 | #define VECTOR_DECLARATION(name) \ |
| 68 | __global uchar *name##_ptr, \ |
| 69 | uint name##_stride_x, \ |
| 70 | uint name##_step_x, \ |
| 71 | uint name##_offset_first_element_in_bytes |
| 72 | |
| 73 | #define IMAGE_DECLARATION(name) \ |
| 74 | __global uchar *name##_ptr, \ |
| 75 | uint name##_stride_x, \ |
| 76 | uint name##_step_x, \ |
| 77 | uint name##_stride_y, \ |
| 78 | uint name##_step_y, \ |
| 79 | uint name##_offset_first_element_in_bytes |
| 80 | |
| 81 | #define TENSOR3D_DECLARATION(name) \ |
| 82 | __global uchar *name##_ptr, \ |
| 83 | uint name##_stride_x, \ |
| 84 | uint name##_step_x, \ |
| 85 | uint name##_stride_y, \ |
| 86 | uint name##_step_y, \ |
| 87 | uint name##_stride_z, \ |
| 88 | uint name##_step_z, \ |
| 89 | uint name##_offset_first_element_in_bytes |
| 90 | |
steniu01 | 868e541 | 2017-07-17 23:16:00 +0100 | [diff] [blame] | 91 | #define TENSOR4D_DECLARATION(name) \ |
| 92 | __global uchar *name##_ptr, \ |
| 93 | uint name##_stride_x, \ |
| 94 | uint name##_step_x, \ |
| 95 | uint name##_stride_y, \ |
| 96 | uint name##_step_y, \ |
| 97 | uint name##_stride_z, \ |
| 98 | uint name##_step_z, \ |
| 99 | uint name##_stride_w, \ |
| 100 | uint name##_step_w, \ |
| 101 | uint name##_offset_first_element_in_bytes |
| 102 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 103 | #define CONVERT_TO_VECTOR_STRUCT(name) \ |
| 104 | update_vector_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, name##_step_x) |
| 105 | |
| 106 | #define CONVERT_TO_VECTOR_STRUCT_NO_STEP(name) \ |
| 107 | update_vector_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, 0) |
| 108 | |
| 109 | #define CONVERT_TO_IMAGE_STRUCT(name) \ |
| 110 | update_image_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, name##_step_x, name##_stride_y, name##_step_y) |
| 111 | |
| 112 | #define CONVERT_TO_IMAGE_STRUCT_NO_STEP(name) \ |
| 113 | update_image_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, 0, name##_stride_y, 0) |
| 114 | |
steniu01 | 868e541 | 2017-07-17 23:16:00 +0100 | [diff] [blame] | 115 | #define CONVERT_TENSOR3D_TO_IMAGE_STRUCT(name) \ |
| 116 | update_image_from_tensor3D_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, name##_step_x, name##_stride_y, name##_step_y, name##_stride_z, name##_step_z) |
| 117 | |
Anthony Barbier | 7ff47a3 | 2017-07-11 16:54:04 +0100 | [diff] [blame] | 118 | #define CONVERT_TENSOR3D_TO_IMAGE_STRUCT_NO_STEP(name) \ |
| 119 | update_image_from_tensor3D_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, 0, name##_stride_y, 0, name##_stride_z, name##_step_z) |
| 120 | |
steniu01 | 0d523cc | 2017-07-13 14:24:23 +0100 | [diff] [blame] | 121 | #define CONVERT_TENSOR3D_TO_IMAGE_STRUCT(name) \ |
| 122 | update_image_from_tensor3D_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, name##_step_x, name##_stride_y, name##_step_y, name##_stride_z, name##_step_z) |
| 123 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 124 | #define CONVERT_TO_TENSOR3D_STRUCT(name) \ |
| 125 | update_tensor3D_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, name##_step_x, name##_stride_y, name##_step_y, \ |
| 126 | name##_stride_z, name##_step_z) |
| 127 | |
| 128 | #define CONVERT_TO_TENSOR3D_STRUCT_NO_STEP(name) \ |
| 129 | update_tensor3D_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, 0, name##_stride_y, 0, name##_stride_z, 0) |
| 130 | |
steniu01 | 868e541 | 2017-07-17 23:16:00 +0100 | [diff] [blame] | 131 | #define CONVERT_TO_TENSOR4D_STRUCT(name, mod_size) \ |
| 132 | update_tensor4D_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, name##_step_x, name##_stride_y, name##_step_y, \ |
Michalis Spyrou | 5237e01 | 2018-01-17 09:40:27 +0000 | [diff] [blame] | 133 | name##_stride_z, name##_step_z, name##_stride_w, name##_step_w, mod_size) |
steniu01 | 868e541 | 2017-07-17 23:16:00 +0100 | [diff] [blame] | 134 | |
| 135 | #define CONVERT_TO_TENSOR4D_STRUCT_NO_STEP(name, mod_size) \ |
| 136 | update_tensor4D_workitem_ptr(name##_ptr, name##_offset_first_element_in_bytes, name##_stride_x, 0, name##_stride_y, 0, name##_stride_z, 0, name##_stride_w, 0, mod_size) |
| 137 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 138 | /** Structure to hold Vector information */ |
| 139 | typedef struct Vector |
| 140 | { |
| 141 | __global uchar *ptr; /**< Pointer to the starting postion of the buffer */ |
| 142 | int offset_first_element_in_bytes; /**< The offset of the first element in the source image */ |
| 143 | int stride_x; /**< Stride of the image in X dimension (in bytes) */ |
| 144 | } Vector; |
| 145 | |
| 146 | /** Structure to hold Image information */ |
| 147 | typedef struct Image |
| 148 | { |
| 149 | __global uchar *ptr; /**< Pointer to the starting postion of the buffer */ |
| 150 | int offset_first_element_in_bytes; /**< The offset of the first element in the source image */ |
| 151 | int stride_x; /**< Stride of the image in X dimension (in bytes) */ |
| 152 | int stride_y; /**< Stride of the image in Y dimension (in bytes) */ |
| 153 | } Image; |
| 154 | |
| 155 | /** Structure to hold 3D tensor information */ |
| 156 | typedef struct Tensor3D |
| 157 | { |
| 158 | __global uchar *ptr; /**< Pointer to the starting postion of the buffer */ |
| 159 | int offset_first_element_in_bytes; /**< The offset of the first element in the source image */ |
| 160 | int stride_x; /**< Stride of the image in X dimension (in bytes) */ |
| 161 | int stride_y; /**< Stride of the image in Y dimension (in bytes) */ |
| 162 | int stride_z; /**< Stride of the image in Z dimension (in bytes) */ |
| 163 | } Tensor3D; |
| 164 | |
steniu01 | 868e541 | 2017-07-17 23:16:00 +0100 | [diff] [blame] | 165 | /** Structure to hold 4D tensor information */ |
| 166 | typedef struct Tensor4D |
| 167 | { |
| 168 | __global uchar *ptr; /**< Pointer to the starting postion of the buffer */ |
| 169 | int offset_first_element_in_bytes; /**< The offset of the first element in the source image */ |
| 170 | int stride_x; /**< Stride of the image in X dimension (in bytes) */ |
| 171 | int stride_y; /**< Stride of the image in Y dimension (in bytes) */ |
| 172 | int stride_z; /**< Stride of the image in Z dimension (in bytes) */ |
| 173 | int stride_w; /**< Stride of the image in W dimension (in bytes) */ |
| 174 | } Tensor4D; |
| 175 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 176 | /** Wrap vector information into an Vector structure, and make the pointer point at this workitem's data. |
| 177 | * |
| 178 | * @param[in] ptr Pointer to the starting postion of the buffer |
| 179 | * @param[in] offset_first_element_in_bytes The offset of the first element in the source vector |
| 180 | * @param[in] stride_x Stride of the vector in X dimension (in bytes) |
| 181 | * @param[in] step_x stride_x * number of elements along X processed per workitem(in bytes) |
| 182 | * |
| 183 | * @return An image object |
| 184 | */ |
| 185 | Vector inline update_vector_workitem_ptr(__global uchar *ptr, uint offset_first_element_in_bytes, uint stride_x, uint step_x) |
| 186 | { |
| 187 | Vector vector = |
| 188 | { |
| 189 | .ptr = ptr, |
| 190 | .offset_first_element_in_bytes = offset_first_element_in_bytes, |
| 191 | .stride_x = stride_x, |
| 192 | }; |
| 193 | vector.ptr += vector.offset_first_element_in_bytes + get_global_id(0) * step_x; |
| 194 | return vector; |
| 195 | } |
| 196 | |
| 197 | /** Wrap image information into an Image structure, and make the pointer point at this workitem's data. |
| 198 | * |
| 199 | * @param[in] ptr Pointer to the starting postion of the buffer |
| 200 | * @param[in] offset_first_element_in_bytes The offset of the first element in the source image |
| 201 | * @param[in] stride_x Stride of the image in X dimension (in bytes) |
| 202 | * @param[in] step_x stride_x * number of elements along X processed per workitem(in bytes) |
| 203 | * @param[in] stride_y Stride of the image in Y dimension (in bytes) |
| 204 | * @param[in] step_y stride_y * number of elements along Y processed per workitem(in bytes) |
| 205 | * |
| 206 | * @return An image object |
| 207 | */ |
| 208 | Image inline update_image_workitem_ptr(__global uchar *ptr, uint offset_first_element_in_bytes, uint stride_x, uint step_x, uint stride_y, uint step_y) |
| 209 | { |
| 210 | Image img = |
| 211 | { |
| 212 | .ptr = ptr, |
| 213 | .offset_first_element_in_bytes = offset_first_element_in_bytes, |
| 214 | .stride_x = stride_x, |
| 215 | .stride_y = stride_y |
| 216 | }; |
| 217 | img.ptr += img.offset_first_element_in_bytes + get_global_id(0) * step_x + get_global_id(1) * step_y; |
| 218 | return img; |
| 219 | } |
| 220 | |
Anthony Barbier | 7ff47a3 | 2017-07-11 16:54:04 +0100 | [diff] [blame] | 221 | /** Wrap 3D tensor information into an image structure, and make the pointer point at this workitem's data. |
| 222 | * |
| 223 | * @param[in] ptr Pointer to the starting postion of the buffer |
| 224 | * @param[in] offset_first_element_in_bytes The offset of the first element in the source image |
| 225 | * @param[in] stride_x Stride of the image in X dimension (in bytes) |
| 226 | * @param[in] step_x stride_x * number of elements along X processed per workitem(in bytes) |
| 227 | * @param[in] stride_y Stride of the image in Y dimension (in bytes) |
| 228 | * @param[in] step_y stride_y * number of elements along Y processed per workitem(in bytes) |
| 229 | * @param[in] stride_z Stride of the image in Z dimension (in bytes) |
| 230 | * @param[in] step_z stride_z * number of elements along Z processed per workitem(in bytes) |
| 231 | * |
| 232 | * @return A 3D tensor object |
| 233 | */ |
| 234 | Image inline update_image_from_tensor3D_workitem_ptr(__global uchar *ptr, uint offset_first_element_in_bytes, uint stride_x, uint step_x, uint stride_y, uint step_y, uint stride_z, uint step_z) |
| 235 | { |
| 236 | Image img = |
| 237 | { |
| 238 | .ptr = ptr, |
| 239 | .offset_first_element_in_bytes = offset_first_element_in_bytes, |
| 240 | .stride_x = stride_x, |
| 241 | .stride_y = stride_y |
| 242 | }; |
| 243 | img.ptr += img.offset_first_element_in_bytes + get_global_id(0) * step_x + get_global_id(1) * step_y + get_global_id(2) * step_z; |
| 244 | return img; |
| 245 | } |
| 246 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 247 | /** Wrap 3D tensor information into an tensor structure, and make the pointer point at this workitem's data. |
| 248 | * |
| 249 | * @param[in] ptr Pointer to the starting postion of the buffer |
| 250 | * @param[in] offset_first_element_in_bytes The offset of the first element in the source image |
| 251 | * @param[in] stride_x Stride of the image in X dimension (in bytes) |
| 252 | * @param[in] step_x stride_x * number of elements along X processed per workitem(in bytes) |
| 253 | * @param[in] stride_y Stride of the image in Y dimension (in bytes) |
| 254 | * @param[in] step_y stride_y * number of elements along Y processed per workitem(in bytes) |
| 255 | * @param[in] stride_z Stride of the image in Z dimension (in bytes) |
| 256 | * @param[in] step_z stride_z * number of elements along Z processed per workitem(in bytes) |
| 257 | * |
| 258 | * @return A 3D tensor object |
| 259 | */ |
| 260 | Tensor3D inline update_tensor3D_workitem_ptr(__global uchar *ptr, uint offset_first_element_in_bytes, uint stride_x, uint step_x, uint stride_y, uint step_y, uint stride_z, uint step_z) |
| 261 | { |
| 262 | Tensor3D tensor = |
| 263 | { |
| 264 | .ptr = ptr, |
| 265 | .offset_first_element_in_bytes = offset_first_element_in_bytes, |
| 266 | .stride_x = stride_x, |
| 267 | .stride_y = stride_y, |
| 268 | .stride_z = stride_z |
| 269 | }; |
| 270 | tensor.ptr += tensor.offset_first_element_in_bytes + get_global_id(0) * step_x + get_global_id(1) * step_y + get_global_id(2) * step_z; |
| 271 | return tensor; |
| 272 | } |
| 273 | |
steniu01 | 868e541 | 2017-07-17 23:16:00 +0100 | [diff] [blame] | 274 | Tensor4D inline update_tensor4D_workitem_ptr(__global uchar *ptr, uint offset_first_element_in_bytes, uint stride_x, uint step_x, uint stride_y, uint step_y, uint stride_z, uint step_z, uint stride_w, |
| 275 | uint step_w, |
| 276 | uint mod_size) |
| 277 | { |
| 278 | Tensor4D tensor = |
| 279 | { |
| 280 | .ptr = ptr, |
| 281 | .offset_first_element_in_bytes = offset_first_element_in_bytes, |
| 282 | .stride_x = stride_x, |
| 283 | .stride_y = stride_y, |
| 284 | .stride_z = stride_z, |
| 285 | .stride_w = stride_w |
| 286 | }; |
| 287 | |
| 288 | tensor.ptr += tensor.offset_first_element_in_bytes + get_global_id(0) * step_x + get_global_id(1) * step_y + (get_global_id(2) % mod_size) * step_z + (get_global_id(2) / mod_size) * step_w; |
| 289 | return tensor; |
| 290 | } |
| 291 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 292 | /** Get the pointer position of a Vector |
| 293 | * |
| 294 | * @param[in] vec Pointer to the starting position of the buffer |
| 295 | * @param[in] x Relative X position |
| 296 | */ |
| 297 | __global inline const uchar *vector_offset(const Vector *vec, int x) |
| 298 | { |
| 299 | return vec->ptr + x * vec->stride_x; |
| 300 | } |
| 301 | |
| 302 | /** Get the pointer position of a Image |
| 303 | * |
| 304 | * @param[in] img Pointer to the starting position of the buffer |
| 305 | * @param[in] x Relative X position |
| 306 | * @param[in] y Relative Y position |
| 307 | */ |
| 308 | __global inline uchar *offset(const Image *img, int x, int y) |
| 309 | { |
| 310 | return img->ptr + x * img->stride_x + y * img->stride_y; |
| 311 | } |
| 312 | |
| 313 | /** Get the pointer position of a Tensor3D |
| 314 | * |
Gian Marco Iodice | 3a62324 | 2017-07-25 10:25:53 +0100 | [diff] [blame] | 315 | * @param[in] tensor Pointer to the starting position of the buffer |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 316 | * @param[in] x Relative X position |
| 317 | * @param[in] y Relative Y position |
| 318 | * @param[in] z Relative Z position |
| 319 | */ |
| 320 | __global inline const uchar *tensor3D_offset(const Tensor3D *tensor, int x, int y, int z) |
| 321 | { |
| 322 | return tensor->ptr + x * tensor->stride_x + y * tensor->stride_y + z * tensor->stride_z; |
| 323 | } |
| 324 | |
steniu01 | 868e541 | 2017-07-17 23:16:00 +0100 | [diff] [blame] | 325 | /** Get the pointer position of a Tensor4D |
| 326 | * |
| 327 | * @param[in] tensor Pointer to the starting position of the buffer |
| 328 | * @param[in] x Relative X position |
| 329 | * @param[in] y Relative Y position |
| 330 | * @param[in] z Relative Z position |
| 331 | * @param[in] w Relative W position |
| 332 | */ |
| 333 | __global inline const uchar *tensor4D_offset(const Tensor4D *tensor, int x, int y, int z, int w) |
| 334 | { |
| 335 | return tensor->ptr + x * tensor->stride_x + y * tensor->stride_y + z * tensor->stride_z + w * tensor->stride_w; |
| 336 | } |
| 337 | |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 338 | #endif // _HELPER_H |