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Diffstat (limited to 'src/core/CL/cl_kernels/absdiff.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/absdiff.cl | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/absdiff.cl b/src/core/CL/cl_kernels/absdiff.cl new file mode 100644 index 0000000000..1761342eb4 --- /dev/null +++ b/src/core/CL/cl_kernels/absdiff.cl @@ -0,0 +1,65 @@ +/* + * 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); +} |