| /* |
| * Copyright (c) 2016, 2017 Arm Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #include "helpers.h" |
| |
| /** Calculate the absolute difference of two input images. |
| * |
| * @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 |
| * e.g. -DDATA_TYPE_IN1=uchar -DDATA_TYPE_IN2=uchar -DDATA_TYPE_OUT=short |
| * |
| * @param[in] in1_ptr Pointer to the first source image. Supported data types: U8, S16 |
| * @param[in] in1_stride_x Stride of the first source image in X dimension (in bytes) |
| * @param[in] in1_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] in1_stride_y Stride of the first source image in Y dimension (in bytes) |
| * @param[in] in1_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] in1_offset_first_element_in_bytes The offset of the first element in the first source image |
| * @param[in] in2_ptr Pointer to the second source image. Supported data types: U8, S16 |
| * @param[in] in2_stride_x Stride of the second source image in X dimension (in bytes) |
| * @param[in] in2_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] in2_stride_y Stride of the second source image in Y dimension (in bytes) |
| * @param[in] in2_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] in2_offset_first_element_in_bytes The offset of the first element in the second source image |
| * @param[out] out_ptr Pointer to the destination image. Supported data types: U8, S16 |
| * @param[in] out_stride_x Stride of the destination image in X dimension (in bytes) |
| * @param[in] out_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] out_stride_y Stride of the destination image in Y dimension (in bytes) |
| * @param[in] out_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] out_offset_first_element_in_bytes The offset of the first element in the destination image |
| */ |
| __kernel void absdiff( |
| IMAGE_DECLARATION(in1), |
| IMAGE_DECLARATION(in2), |
| IMAGE_DECLARATION(out)) |
| { |
| Image in1 = CONVERT_TO_IMAGE_STRUCT(in1); |
| Image in2 = CONVERT_TO_IMAGE_STRUCT(in2); |
| Image out = CONVERT_TO_IMAGE_STRUCT(out); |
| |
| VEC_DATA_TYPE(DATA_TYPE_OUT, 16) |
| in_a = CONVERT(vload16(0, (__global DATA_TYPE_IN1 *)in1.ptr), VEC_DATA_TYPE(DATA_TYPE_OUT, 16)); |
| VEC_DATA_TYPE(DATA_TYPE_OUT, 16) |
| in_b = CONVERT(vload16(0, (__global DATA_TYPE_IN2 *)in2.ptr), VEC_DATA_TYPE(DATA_TYPE_OUT, 16)); |
| |
| vstore16(CONVERT_SAT(abs_diff(in_a, in_b), VEC_DATA_TYPE(DATA_TYPE_OUT, 16)), 0, (__global DATA_TYPE_OUT *)out.ptr); |
| } |