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Diffstat (limited to 'src/core/CL/cl_kernels/common/slice_ops.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/common/slice_ops.cl | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/common/slice_ops.cl b/src/core/CL/cl_kernels/common/slice_ops.cl new file mode 100644 index 0000000000..189d414aba --- /dev/null +++ b/src/core/CL/cl_kernels/common/slice_ops.cl @@ -0,0 +1,135 @@ +/* + * Copyright (c) 2018-2021, 2024 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" + +/** Perform a strided slice operation on a given input. + * + * @attention Supported tensor rank: up to 4 + * + * @attention Data type can be passed using the -DDATA_TYPE compile flag, e.g. -DDATA_TYPE=float + * @attention Output tensor depht should be given as a preprocessor arguments using -DDST_DEPTH=size + * @attention Absolute start coordinates for each dimension should be given as preprocessor -DSTART_index=value e.g. -DSTART_0=2 + * @attention Strides for each dimension should be given as preprocessor -DSTRIDE_index=value e.g. -DSTRIDE_1=1 + * + * @param[in] input_ptr Pointer to the source tensor. Supported data types: All + * @param[in] input_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] input_stride_y Stride of the source tensor in Y dimension (in bytes) + * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] input_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] input_step_z input_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] input_stride_w Stride of the source tensor in W dimension (in bytes) + * @param[in] input_step_w input_stride_w * number of elements along W processed per workitem(in bytes) + * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[out] output_ptr Pointer to the destination tensor. Supported data types: same as @p input_ptr + * @param[in] output_stride_x Stride of the destination tensor in X dimension (in bytes) + * @param[in] output_step_x output_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] output_stride_y Stride of the destination tensor in Y dimension (in bytes) + * @param[in] output_step_y output_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] output_stride_z Stride of the destination tensor in Z dimension (in bytes) + * @param[in] output_step_z output_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] output_stride_w Stride of the destination tensor in W dimension (in bytes) + * @param[in] output_step_w output_stride_w * number of elements along W processed per workitem(in bytes) + * @param[in] output_offset_first_element_in_bytes The offset of the first element in the destination tensor + */ +__kernel void strided_slice( + TENSOR4D_DECLARATION(input), + TENSOR4D_DECLARATION(output)) +{ + // Get pixels pointer + Tensor4D input = CONVERT_TO_TENSOR4D_STRUCT_NO_STEP(input); + Tensor4D output = CONVERT_TO_TENSOR4D_STRUCT(output, DST_DEPTH); + + int offset = 0; + + // Offset X +#if defined(SHRINK_0) + input.ptr += (int)START_0 * input_stride_x; +#elif defined(START_0) && defined(STRIDE_0) && defined(VEC_SIZE) && defined(LAST_ACCESSED_X) + // Check if access on width gets out of bounds + // If it does shift access vector to access elements within bounds + const int xi = (int)(get_global_id(0) * VEC_SIZE); + offset = (int)START_0 + min(xi, (int)LAST_ACCESSED_X); + input.ptr += offset * input_stride_x; + output.ptr -= max(xi - (int)LAST_ACCESSED_X, 0) * output_stride_x; +#elif defined(START_0) && defined(STRIDE_0) + offset = (int)START_0 + (int)get_global_id(0) * (int)STRIDE_0; + input.ptr += offset * input_stride_x; +#endif // defined(START_0) && defined(STRIDE_0) + + // Offset Y +#if defined(SHRINK_1) + input.ptr += (int)START_1 * input_stride_y; +#elif defined(START_1) && defined(STRIDE_1) +#if defined(SHRINK_0) + offset = (int)START_1 + (int)get_global_id(0) * (int)STRIDE_1; +#else // defined(SHRINK_0) + offset = (int)START_1 + (int)get_global_id(1) * (int)STRIDE_1; +#endif // defined(SHRINK_0) + input.ptr += offset * input_stride_y; +#endif // defined(START_1) && defined(STRIDE_1) + + // Offset Z +#if defined(SHRINK_2) + input.ptr += (int)START_2 * input_stride_z; +#elif defined(START_2) && defined(STRIDE_2) + +#if defined(SHRINK_1) && defined(SHRINK_0) + offset = (int)START_2 + (int)get_global_id(0) * (int)STRIDE_2; +#elif defined(SHRINK_1) || defined(SHRINK_0) + offset = (int)START_2 + (int)get_global_id(1) * (int)STRIDE_2; +#else // defined(SHRINK_1) && defined(SHRINK_0) + offset = (int)START_2 + ((int)get_global_id(2) % (int)DST_DEPTH) * (int)STRIDE_2; +#endif // defined(SHRINK_1) && defined(SHRINK_0) + + input.ptr += offset * input_stride_z; +#endif // defined(START_2) && defined(STRIDE_2) + + // Offset depth +#if defined(SHRINK_3) + input.ptr += (int)START_3 * input_stride_w; +#elif defined(START_3) && defined(STRIDE_3) +#if defined(SHRINK_2) && defined(SHRINK_1) && defined(SHRINK_0) + offset = (int)START_3 + (int)get_global_id(0) * (int)STRIDE_3; +#elif !defined(SHRINK_2) && !defined(SHRINK_1) && !defined(SHRINK_0) + offset = (int)START_3 + ((int)get_global_id(2) / (int)DST_DEPTH) * (int)STRIDE_3; +#elif(defined(SHRINK_0) && defined(SHRINK_1)) || (defined(SHRINK_1) && defined(SHRINK_2)) || (defined(SHRINK_0) && defined(SHRINK_2)) + offset = (int)START_3 + (int)get_global_id(1) * (int)STRIDE_3; +#else // defined(SHRINK_2) && defined(SHRINK_1) && defined(SHRINK_0) + offset = (int)START_3 + ((int)get_global_id(2) % (int)DST_DEPTH) * (int)STRIDE_3; +#endif // defined(SHRINK_2) && defined(SHRINK_1) && defined(SHRINK_0) + input.ptr += offset * input_stride_w; +#endif // defined(START_3) && defined(STRIDE_3) + + // Store result +#if defined(VEC_SIZE) && defined(LAST_ACCESSED_X) + VEC_DATA_TYPE(DATA_TYPE, VEC_SIZE) + val = VLOAD(VEC_SIZE)(0, (__global DATA_TYPE *)(input.ptr)); + + VSTORE(VEC_SIZE) + (val, 0, (__global DATA_TYPE *)(output.ptr)); +#else // defined(VEC_SIZE) && defined(LAST_ACCESSED_X) + *((__global DATA_TYPE *)(output.ptr)) = *((__global DATA_TYPE *)(input.ptr)); +#endif // defined(VEC_SIZE) && defined(LAST_ACCESSED_X) +} |