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Diffstat (limited to 'src/core/CL/cl_kernels/common/fill_border.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/common/fill_border.cl | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/common/fill_border.cl b/src/core/CL/cl_kernels/common/fill_border.cl new file mode 100644 index 0000000000..a43343c9f4 --- /dev/null +++ b/src/core/CL/cl_kernels/common/fill_border.cl @@ -0,0 +1,165 @@ +/* + * Copyright (c) 2016-2021 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" + +/** Fill N pixel of the padding edge of a single channel image by replicating the closest valid pixel. + * + * @attention The DATA_TYPE needs to be passed at the compile time. + * e.g. -DDATA_TYPE=int + * + * @attention The border size for top, bottom, left, right needs to be passed at the compile time. + * e.g. --DBORDER_SIZE_TOP=0 -DBORDER_SIZE_BOTTOM=2 -DBORDER_SIZE_LEFT=0 -DBORDER_SIZE_RIGHT=2 + * + * @param[in,out] buf_ptr Pointer to the source image. Supported data types: All + * @param[in] buf_stride_x Stride of the source image in X dimension (in bytes) + * @param[in] buf_step_x buf_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] buf_stride_y Stride of the source image in Y dimension (in bytes) + * @param[in] buf_step_y buf_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] buf_stride_z Stride between images if batching images (in bytes) + * @param[in] buf_step_z buf_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] buf_offset_first_element_in_bytes The offset of the first element in the source image + * @param[in] width Width of the valid region of the image + * @param[in] height Height of the valid region of the image + * @param[in] start_pos XY coordinate indicating the start point of the valid region + */ +__kernel void fill_image_borders_replicate( + TENSOR3D_DECLARATION(buf), + uint width, + uint height, + int2 start_pos) +{ + Image buf = CONVERT_TENSOR3D_TO_IMAGE_STRUCT_NO_STEP(buf); + + // Update pointer to point to the starting point of the valid region + buf.ptr += start_pos.y * buf.stride_y + start_pos.x * buf.stride_x; + + const int total_width = BORDER_SIZE_LEFT + width + BORDER_SIZE_RIGHT; + const int gid0 = get_global_id(0); + const int gidH = gid0 - total_width; + const int gidW = gid0 - BORDER_SIZE_LEFT; + + if(gidH >= 0) + { + // Handle left border + DATA_TYPE left_val = *(__global DATA_TYPE *)offset(&buf, 0, gidH); + for(int i = -BORDER_SIZE_LEFT; i < 0; ++i) + { + *(__global DATA_TYPE *)offset(&buf, i, gidH) = left_val; + } + // Handle right border + DATA_TYPE right_val = *(__global DATA_TYPE *)offset(&buf, width - 1, gidH); + for(int i = 0; i < BORDER_SIZE_RIGHT; ++i) + { + *(__global DATA_TYPE *)offset(&buf, width + i, gidH) = right_val; + } + } + else + { + // Get value for corners + int val_idx = gidW; + if(gidW < 0 || gidW > (width - 1)) + { + val_idx = gidW < 0 ? 0 : width - 1; + } + + // Handle top border + DATA_TYPE top_val = *(__global DATA_TYPE *)offset(&buf, val_idx, 0); + for(int i = -BORDER_SIZE_TOP; i < 0; ++i) + { + *(__global DATA_TYPE *)offset(&buf, gidW, i) = top_val; + } + // Handle bottom border + DATA_TYPE bottom_val = *(__global DATA_TYPE *)offset(&buf, val_idx, height - 1); + for(int i = 0; i < BORDER_SIZE_BOTTOM; ++i) + { + *(__global DATA_TYPE *)offset(&buf, gidW, height + i) = bottom_val; + } + } +} + +/** Fill N pixels of the padding edge of a single channel image with a constant value. + * + * @attention The DATA_TYPE needs to be passed at the compile time. + * e.g. -DDATA_TYPE=int + * + * @attention The border size for top, bottom, left, right needs to be passed at the compile time. + * e.g. --DBORDER_SIZE_TOP=0 -DBORDER_SIZE_BOTTOM=2 -DBORDER_SIZE_LEFT=0 -DBORDER_SIZE_RIGHT=2 + * + * @param[out] buf_ptr Pointer to the source image. Supported data types: All + * @param[in] buf_stride_x Stride of the source image in X dimension (in bytes) + * @param[in] buf_step_x buf_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] buf_stride_y Stride of the source image in Y dimension (in bytes) + * @param[in] buf_step_y buf_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] buf_stride_z Stride between images if batching images (in bytes) + * @param[in] buf_step_z buf_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] buf_offset_first_element_in_bytes The offset of the first element in the source image + * @param[in] width Width of the valid region of the image + * @param[in] height Height of the valid region of the image + * @param[in] start_pos XY coordinate indicating the start point of the valid region + * @param[in] constant_value Constant value to use to fill the edges + */ +__kernel void fill_image_borders_constant( + TENSOR3D_DECLARATION(buf), + uint width, + uint height, + int2 start_pos, + DATA_TYPE constant_value) +{ + Image buf = CONVERT_TENSOR3D_TO_IMAGE_STRUCT_NO_STEP(buf); + + // Update pointer to point to the starting point of the valid region + buf.ptr += start_pos.y * buf.stride_y + start_pos.x * buf.stride_x; + + const int total_width = BORDER_SIZE_LEFT + width + BORDER_SIZE_RIGHT; + const int gid0 = get_global_id(0); + const int gidH = gid0 - total_width; + const int gidW = gid0 - BORDER_SIZE_LEFT; + + if(gidH >= 0) + { + // Handle left border + for(int i = -BORDER_SIZE_LEFT; i < 0; ++i) + { + *(__global DATA_TYPE *)offset(&buf, i, gidH) = constant_value; + } + // Handle right border + for(int i = 0; i < BORDER_SIZE_RIGHT; ++i) + { + *(__global DATA_TYPE *)offset(&buf, width + i, gidH) = constant_value; + } + } + else + { + // Handle top border + for(int i = -BORDER_SIZE_TOP; i < 0; ++i) + { + *(__global DATA_TYPE *)offset(&buf, gidW, i) = constant_value; + } + // Handle bottom border + for(int i = 0; i < BORDER_SIZE_BOTTOM; ++i) + { + *(__global DATA_TYPE *)offset(&buf, gidW, height + i) = constant_value; + } + } +} |