| 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 | /** Calculate the absolute difference of two input images. |
| 27 | * |
| 28 | * @attention The input and output data types need to be passed at compile time using -DDATA_TYPE_IN1, -DDATA_TYPE_IN2 and -DDATA_TYPE_OUT:\n |
| 29 | * e.g. -DDATA_TYPE_IN1=uchar -DDATA_TYPE_IN2=uchar -DDATA_TYPE_OUT=short |
| 30 | * |
| 31 | * @param[in] in1_ptr Pointer to the first source image. Supported data types: U8, S16 |
| 32 | * @param[in] in1_stride_x Stride of the first source image in X dimension (in bytes) |
| 33 | * @param[in] in1_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 34 | * @param[in] in1_stride_y Stride of the first source image in Y dimension (in bytes) |
| 35 | * @param[in] in1_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 36 | * @param[in] in1_offset_first_element_in_bytes The offset of the first element in the first source image |
| 37 | * @param[in] in2_ptr Pointer to the second source image. Supported data types: U8, S16 |
| 38 | * @param[in] in2_stride_x Stride of the second source image in X dimension (in bytes) |
| 39 | * @param[in] in2_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 40 | * @param[in] in2_stride_y Stride of the second source image in Y dimension (in bytes) |
| 41 | * @param[in] in2_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 42 | * @param[in] in2_offset_first_element_in_bytes The offset of the first element in the second source image |
| 43 | * @param[out] out_ptr Pointer to the destination image. Supported data types: U8, S16 |
| 44 | * @param[in] out_stride_x Stride of the destination image in X dimension (in bytes) |
| 45 | * @param[in] out_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) |
| 46 | * @param[in] out_stride_y Stride of the destination image in Y dimension (in bytes) |
| 47 | * @param[in] out_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) |
| 48 | * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination image |
| 49 | */ |
| 50 | __kernel void absdiff( |
| 51 | IMAGE_DECLARATION(in1), |
| 52 | IMAGE_DECLARATION(in2), |
| 53 | IMAGE_DECLARATION(out)) |
| 54 | { |
| 55 | Image in1 = CONVERT_TO_IMAGE_STRUCT(in1); |
| 56 | Image in2 = CONVERT_TO_IMAGE_STRUCT(in2); |
| 57 | Image out = CONVERT_TO_IMAGE_STRUCT(out); |
| 58 | |
| 59 | VEC_DATA_TYPE(DATA_TYPE_OUT, 16) |
| 60 | in_a = CONVERT(vload16(0, (__global DATA_TYPE_IN1 *)in1.ptr), VEC_DATA_TYPE(DATA_TYPE_OUT, 16)); |
| 61 | VEC_DATA_TYPE(DATA_TYPE_OUT, 16) |
| 62 | in_b = CONVERT(vload16(0, (__global DATA_TYPE_IN2 *)in2.ptr), VEC_DATA_TYPE(DATA_TYPE_OUT, 16)); |
| 63 | |
| 64 | vstore16(CONVERT_SAT(abs_diff(in_a, in_b), VEC_DATA_TYPE(DATA_TYPE_OUT, 16)), 0, (__global DATA_TYPE_OUT *)out.ptr); |
| 65 | } |