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Diffstat (limited to 'src/core/CL/cl_kernels/dilate.cl')
-rw-r--r-- | src/core/CL/cl_kernels/dilate.cl | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/dilate.cl b/src/core/CL/cl_kernels/dilate.cl new file mode 100644 index 0000000000..c62c701757 --- /dev/null +++ b/src/core/CL/cl_kernels/dilate.cl @@ -0,0 +1,56 @@ +/* + * 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" + +/** This function dilates an input image. + * + * @param[in] src_ptr Pointer to the source image. Supported data types: U8 + * @param[in] src_stride_x Stride of the source image in X dimension (in bytes) + * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] src_stride_y Stride of the source image in Y dimension (in bytes) + * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source image + * @param[out] dst_ptr Pointer to the destination image. Supported data types: U8 + * @param[in] dst_stride_x Stride of the destination image in X dimension (in bytes) + * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] dst_stride_y Stride of the destination image in Y dimension (in bytes) + * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination image + */ +__kernel void dilate( + IMAGE_DECLARATION(src), + IMAGE_DECLARATION(dst)) +{ + Image src = CONVERT_TO_IMAGE_STRUCT(src); + Image dst = CONVERT_TO_IMAGE_STRUCT(dst); + + uchar16 top = vload16(0, offset(&src, -1, -1)); + uchar16 middle = vload16(0, offset(&src, -1, 0)); + uchar16 bottom = vload16(0, offset(&src, -1, 1)); + + uchar16 tmp = max(top, max(middle, bottom)); + uchar8 out = max(tmp.s01234567, max(tmp.s12345678, tmp.s23456789)); + + vstore8(out, 0, dst.ptr); +} |