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 | */ |
| 24 | #include "helpers.h" |
| 25 | |
| 26 | #ifndef DATA_TYPE |
| 27 | #define DATA_TYPE short |
Anthony Barbier | ac69aa1 | 2017-07-03 17:39:37 +0100 | [diff] [blame] | 28 | #endif /* DATA_TYPE */ |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 29 | |
| 30 | #ifndef COMPUTE_TYPE |
| 31 | #define COMPUTE_TYPE int |
Anthony Barbier | ac69aa1 | 2017-07-03 17:39:37 +0100 | [diff] [blame] | 32 | #endif /* COMPUTE_TYPE */ |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 33 | |
| 34 | #ifndef DATA_TYPE_OUT |
| 35 | #define DATA_TYPE_OUT uchar |
Anthony Barbier | ac69aa1 | 2017-07-03 17:39:37 +0100 | [diff] [blame] | 36 | #endif /* DATA_TYPE_OUT */ |
Anthony Barbier | 6ff3b19 | 2017-09-04 18:44:23 +0100 | [diff] [blame] | 37 | |
| 38 | /** Compute a 1D horizontal convolution of size 5 for 8 bytes assuming the input is made of 1 channel of 1 byte (i.e 8 pixels). |
| 39 | * |
| 40 | * @param[in] left_pixel Pointer to the left pixel |
| 41 | * @param[in] left1_coeff Weight of the most left pixel |
| 42 | * @param[in] left2_coeff Weight of the left pixel |
| 43 | * @param[in] middle_coeff Weight of the middle pixel |
| 44 | * @param[in] right1_coeff Weight of the right pixel |
| 45 | * @param[in] right2_coeff Weight of the most right pixel |
| 46 | * |
| 47 | * @return a short8 containing 8 convoluted values. |
| 48 | */ |
| 49 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 50 | convolution1x5( |
| 51 | __global const uchar *left_pixel, |
| 52 | const short left1_coeff, |
| 53 | const short left2_coeff, |
| 54 | const short middle_coeff, |
| 55 | const short right1_coeff, |
| 56 | const short right2_coeff) |
| 57 | { |
| 58 | uchar16 temp = vload16(0, left_pixel); |
| 59 | |
| 60 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 61 | left1 = CONVERT(temp.s01234567, VEC_DATA_TYPE(DATA_TYPE, 8)); |
| 62 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 63 | left2 = CONVERT(temp.s12345678, VEC_DATA_TYPE(DATA_TYPE, 8)); |
| 64 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 65 | middle = CONVERT(temp.s23456789, VEC_DATA_TYPE(DATA_TYPE, 8)); |
| 66 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 67 | right1 = CONVERT(temp.s3456789a, VEC_DATA_TYPE(DATA_TYPE, 8)); |
| 68 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 69 | right2 = CONVERT(temp.s456789ab, VEC_DATA_TYPE(DATA_TYPE, 8)); |
| 70 | |
| 71 | return left1 * (VEC_DATA_TYPE(DATA_TYPE, 8))left1_coeff + left2 * (VEC_DATA_TYPE(DATA_TYPE, 8))left2_coeff |
| 72 | + middle * (VEC_DATA_TYPE(DATA_TYPE, 8))middle_coeff + right1 * (VEC_DATA_TYPE(DATA_TYPE, 8))right1_coeff + right2 * (VEC_DATA_TYPE(DATA_TYPE, 8))right2_coeff; |
| 73 | } |
| 74 | |
| 75 | /** Compute a 1D vertical convolution of size 5 for 8 bytes assuming the input is made of 1 channel of 1 byte (i.e 8 pixels). |
| 76 | * |
| 77 | * @param[in] src Pointer to source image. |
| 78 | * @param[in] up1_coeff Weight of the most up pixel |
| 79 | * @param[in] up2_coeff Weight of the up pixel |
| 80 | * @param[in] middle_coeff Weight of the middle pixel |
| 81 | * @param[in] down1_coeff Weight of the down pixel |
| 82 | * @param[in] down2_coeff Weight of the most down pixel |
| 83 | * |
| 84 | * @return a short8 containing 8 convoluted values. |
| 85 | */ |
| 86 | VEC_DATA_TYPE(COMPUTE_TYPE, 8) |
| 87 | convolution5x1( |
| 88 | Image *src, |
| 89 | const short up1_coeff, |
| 90 | const short up2_coeff, |
| 91 | const short middle_coeff, |
| 92 | const short down1_coeff, |
| 93 | const short down2_coeff) |
| 94 | { |
| 95 | VEC_DATA_TYPE(COMPUTE_TYPE, 8) |
| 96 | val; |
| 97 | VEC_DATA_TYPE(COMPUTE_TYPE, 8) |
| 98 | out = (VEC_DATA_TYPE(COMPUTE_TYPE, 8))0; |
| 99 | |
| 100 | val = CONVERT(vload8(0, (__global DATA_TYPE *)offset(src, 0, -2)), VEC_DATA_TYPE(COMPUTE_TYPE, 8)); |
| 101 | out += val * (VEC_DATA_TYPE(COMPUTE_TYPE, 8))up1_coeff; |
| 102 | |
| 103 | val = CONVERT(vload8(0, (__global DATA_TYPE *)offset(src, 0, -1)), VEC_DATA_TYPE(COMPUTE_TYPE, 8)); |
| 104 | out += val * (VEC_DATA_TYPE(COMPUTE_TYPE, 8))up2_coeff; |
| 105 | |
| 106 | val = CONVERT(vload8(0, (__global DATA_TYPE *)offset(src, 0, 0)), VEC_DATA_TYPE(COMPUTE_TYPE, 8)); |
| 107 | out += val * (VEC_DATA_TYPE(COMPUTE_TYPE, 8))middle_coeff; |
| 108 | |
| 109 | val = CONVERT(vload8(0, (__global DATA_TYPE *)offset(src, 0, 1)), VEC_DATA_TYPE(COMPUTE_TYPE, 8)); |
| 110 | out += val * (VEC_DATA_TYPE(COMPUTE_TYPE, 8))down1_coeff; |
| 111 | |
| 112 | val = CONVERT(vload8(0, (__global DATA_TYPE *)offset(src, 0, 2)), VEC_DATA_TYPE(COMPUTE_TYPE, 8)); |
| 113 | out += val * (VEC_DATA_TYPE(COMPUTE_TYPE, 8))down2_coeff; |
| 114 | |
| 115 | return out; |
| 116 | } |
| 117 | |
| 118 | /** Apply a 5x5 convolution matrix to a single channel U8 input image and return the result. |
| 119 | * |
| 120 | * Convolution matrix layout:\n |
| 121 | * [ mat0, mat1, mat2, mat3 , mat4 ]\n |
| 122 | * [ mat5, mat6, mat7, mat8, mat9 ]\n |
| 123 | * [ mat10, mat11, mat12, mat13, mat14 ]\n |
| 124 | * [ mat15, mat16, mat17, mat18, mat19 ]\n |
| 125 | * [ mat20, mat21, mat22, mat23, mat24 ] |
| 126 | * |
| 127 | * @param[in] src A pointer to source Image structure. |
| 128 | * @param[in] mat0 Coefficient from the convolution matrix |
| 129 | * @param[in] mat1 Coefficient from the convolution matrix |
| 130 | * @param[in] mat2 Coefficient from the convolution matrix |
| 131 | * @param[in] mat3 Coefficient from the convolution matrix |
| 132 | * @param[in] mat4 Coefficient from the convolution matrix |
| 133 | * @param[in] mat5 Coefficient from the convolution matrix |
| 134 | * @param[in] mat6 Coefficient from the convolution matrix |
| 135 | * @param[in] mat0 Coefficient from the convolution matrix |
| 136 | * @param[in] mat7 Coefficient from the convolution matrix |
| 137 | * @param[in] mat8 Coefficient from the convolution matrix |
| 138 | * @param[in] mat9 Coefficient from the convolution matrix |
| 139 | * @param[in] mat10 Coefficient from the convolution matrix |
| 140 | * @param[in] mat11 Coefficient from the convolution matrix |
| 141 | * @param[in] mat12 Coefficient from the convolution matrix |
| 142 | * @param[in] mat13 Coefficient from the convolution matrix |
| 143 | * @param[in] mat14 Coefficient from the convolution matrix |
| 144 | * @param[in] mat15 Coefficient from the convolution matrix |
| 145 | * @param[in] mat16 Coefficient from the convolution matrix |
| 146 | * @param[in] mat10 Coefficient from the convolution matrix |
| 147 | * @param[in] mat17 Coefficient from the convolution matrix |
| 148 | * @param[in] mat18 Coefficient from the convolution matrix |
| 149 | * @param[in] mat19 Coefficient from the convolution matrix |
| 150 | * @param[in] mat20 Coefficient from the convolution matrix |
| 151 | * @param[in] mat21 Coefficient from the convolution matrix |
| 152 | * @param[in] mat22 Coefficient from the convolution matrix |
| 153 | * @param[in] mat23 Coefficient from the convolution matrix |
| 154 | * @param[in] mat24 Coefficient from the convolution matrix |
| 155 | * @param[in] scale Convolution matrix scale (Sum of the coefficients, or 1 if the sum is 0) |
| 156 | * |
| 157 | * @return a short8 containing 8 convoluted and scaled values. |
| 158 | */ |
| 159 | short8 convolution5x5( |
| 160 | Image *src, |
| 161 | const short mat0, const short mat1, const short mat2, const short mat3, const short mat4, |
| 162 | const short mat5, const short mat6, const short mat7, const short mat8, const short mat9, |
| 163 | const short mat10, const short mat11, const short mat12, const short mat13, const short mat14, |
| 164 | const short mat15, const short mat16, const short mat17, const short mat18, const short mat19, |
| 165 | const short mat20, const short mat21, const short mat22, const short mat23, const short mat24, |
| 166 | uint scale) |
| 167 | { |
| 168 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 169 | pixels; |
| 170 | |
| 171 | pixels = convolution1x5(offset(src, -2, -2), mat0, mat1, mat2, mat3, mat4); |
| 172 | pixels += convolution1x5(offset(src, -2, -1), mat5, mat6, mat7, mat8, mat9); |
| 173 | pixels += convolution1x5(offset(src, -2, 0), mat10, mat11, mat12, mat13, mat14); |
| 174 | pixels += convolution1x5(offset(src, -2, 1), mat15, mat16, mat17, mat18, mat19); |
| 175 | pixels += convolution1x5(offset(src, -2, 2), mat20, mat21, mat22, mat23, mat24); |
| 176 | |
| 177 | if(scale > 0) |
| 178 | { |
| 179 | pixels /= (VEC_DATA_TYPE(DATA_TYPE, 8))scale; |
| 180 | } |
| 181 | |
| 182 | return convert_short8_sat(pixels); |
| 183 | } |
| 184 | |
| 185 | #ifndef DYNAMIC_MATRIX_CONVOLUTION |
| 186 | |
| 187 | /** Apply a 1x5 static convolution matrix to a single channel U8 input image and output a single temporary channel image(Support U16, S16, S32). |
| 188 | * |
| 189 | * @attention The matrix coefficients (MAT0, MAT1, MAT2, MAT3, MAT4) and DATA_TYPE need to be passed at compile time:\n |
| 190 | * e.g. -DMAT0=1 -DMAT2=2, -DMAT3=3, -DMAT4=4, -DDATA_TYPE=int |
| 191 | * |
| 192 | * @param[in] src_ptr Pointer to the source image. Supported data types: U8 |
| 193 | * @param[in] src_stride_x Stride of the source image in X dimension (in bytes) |
| 194 | * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 195 | * @param[in] src_stride_y Stride of the source image in Y dimension (in bytes) |
| 196 | * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 197 | * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source image |
| 198 | * @param[out] dst_ptr Pointer to the destination image. Supported data types: U16, S16, S32 |
| 199 | * @param[in] dst_stride_x Stride of the destination image in X dimension (in bytes) |
| 200 | * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) |
| 201 | * @param[in] dst_stride_y Stride of the destination image in Y dimension (in bytes) |
| 202 | * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) |
| 203 | * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination image |
| 204 | */ |
| 205 | __kernel void convolution_separable1x5_static( |
| 206 | IMAGE_DECLARATION(src), |
| 207 | IMAGE_DECLARATION(dst)) |
| 208 | { |
| 209 | Image src = CONVERT_TO_IMAGE_STRUCT(src); |
| 210 | Image dst = CONVERT_TO_IMAGE_STRUCT(dst); |
| 211 | |
| 212 | // Output pixels |
| 213 | VEC_DATA_TYPE(DATA_TYPE, 8) |
| 214 | pixels = convolution1x5(offset(&src, -2, 0), MAT0, MAT1, MAT2, MAT3, MAT4); |
| 215 | |
| 216 | // Store result in dst |
| 217 | vstore8(pixels, 0, (__global DATA_TYPE *)dst.ptr); |
| 218 | } |
| 219 | |
| 220 | /** Apply a 5x1 static convolution matrix to a single channel U8 input image and output a single channel image. |
| 221 | * |
| 222 | * @attention The matrix coefficients (MAT5, MAT6, MAT7, MAT8, MAT9, SCALE), COMPUTE_TYPE and DATA_TYPE_OUT need to be passed at compile time:\n |
| 223 | * e.g. -DMAT5=1 -DMAT6=2, -DMAT7=3, -DMAT8=4, -DMAT9=5, -DSCALE=6, -DCOMPUTE_TYPE=int, -DDATA_TYPE_OUT=int |
| 224 | * |
| 225 | * @param[in] src_ptr Pointer to the source image. Supported data types: U16, S16, S32 |
| 226 | * @param[in] src_stride_x Stride of the source image in X dimension (in bytes) |
| 227 | * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 228 | * @param[in] src_stride_y Stride of the source image in Y dimension (in bytes) |
| 229 | * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 230 | * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source image |
| 231 | * @param[out] dst_ptr Pointer to the destination image. Supported data types: U8, S16 |
| 232 | * @param[in] dst_stride_x Stride of the destination image in X dimension (in bytes) |
| 233 | * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) |
| 234 | * @param[in] dst_stride_y Stride of the destination image in Y dimension (in bytes) |
| 235 | * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) |
| 236 | * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination image |
| 237 | */ |
| 238 | __kernel void convolution_separable5x1_static( |
| 239 | IMAGE_DECLARATION(src), |
| 240 | IMAGE_DECLARATION(dst)) |
| 241 | { |
| 242 | Image src = CONVERT_TO_IMAGE_STRUCT(src); |
| 243 | Image dst = CONVERT_TO_IMAGE_STRUCT(dst); |
| 244 | |
| 245 | // Output pixels |
| 246 | VEC_DATA_TYPE(COMPUTE_TYPE, 8) |
| 247 | pixels = convolution5x1(&src, MAT5, MAT6, MAT7, MAT8, MAT9); |
| 248 | |
| 249 | // Divide by the scale |
| 250 | pixels /= (VEC_DATA_TYPE(COMPUTE_TYPE, 8))SCALE; |
| 251 | |
| 252 | // Store result in dst |
| 253 | vstore8(CONVERT_SAT(pixels, VEC_DATA_TYPE(DATA_TYPE_OUT, 8)), 0, (__global DATA_TYPE_OUT *)dst.ptr); |
| 254 | } |
| 255 | |
| 256 | /** Apply a static 5x5 convolution matrix to a single channel U8 input image and output a single channel image including borders |
| 257 | * |
| 258 | * @attention The matrix coefficients(MAT0, MAT1, ... MAT24, SCALE), DATA_TYPE_OUT need to be passed at compile time:\n |
| 259 | * e.g. -DMAT0=1 -DMAT1=2, ... -DMAT24=24, -DSCALE=6, -DDATA_TYPE_OUT=int |
| 260 | * |
| 261 | * @param[in] src_ptr Pointer to the source image. Supported data types: U8 |
| 262 | * @param[in] src_stride_x Stride of the source image in X dimension (in bytes) |
| 263 | * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 264 | * @param[in] src_stride_y Stride of the source image in Y dimension (in bytes) |
| 265 | * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 266 | * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source image |
| 267 | * @param[out] dst_ptr Pointer to the destination image. Supported data types: U8, S16 |
| 268 | * @param[in] dst_stride_x Stride of the destination image in X dimension (in bytes) |
| 269 | * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) |
| 270 | * @param[in] dst_stride_y Stride of the destination image in Y dimension (in bytes) |
| 271 | * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) |
| 272 | * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination image |
| 273 | */ |
| 274 | __kernel void convolution5x5_static( |
| 275 | IMAGE_DECLARATION(src), |
| 276 | IMAGE_DECLARATION(dst)) |
| 277 | { |
| 278 | Image src = CONVERT_TO_IMAGE_STRUCT(src); |
| 279 | Image dst = CONVERT_TO_IMAGE_STRUCT(dst); |
| 280 | |
| 281 | short8 pixels = convolution5x5(&src, |
| 282 | MAT0, MAT1, MAT2, MAT3, MAT4, MAT5, MAT6, MAT7, MAT8, MAT9, MAT10, MAT11, MAT12, MAT13, |
| 283 | MAT14, MAT15, MAT16, MAT17, MAT18, MAT19, MAT20, MAT21, MAT22, MAT23, MAT24, SCALE); |
| 284 | |
| 285 | // Store the result as is in dst |
| 286 | vstore8(CONVERT_SAT(pixels, VEC_DATA_TYPE(DATA_TYPE_OUT, 8)), 0, (__global DATA_TYPE_OUT *)dst.ptr); |
| 287 | } |
| 288 | |
| 289 | #endif // DYNAMIC_MATRIX_CONVOLUTION |