diff options
Diffstat (limited to 'libs/ARMComputeEx/src/core/CL/cl_kernels/strided_slice_ex.cl')
| -rw-r--r-- | libs/ARMComputeEx/src/core/CL/cl_kernels/strided_slice_ex.cl | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libs/ARMComputeEx/src/core/CL/cl_kernels/strided_slice_ex.cl b/libs/ARMComputeEx/src/core/CL/cl_kernels/strided_slice_ex.cl new file mode 100644 index 000000000..b39c55b96 --- /dev/null +++ b/libs/ARMComputeEx/src/core/CL/cl_kernels/strided_slice_ex.cl @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved + * Copyright (c) 2017 ARM Limited. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "helpers.h" + +#if defined(ELEMENT_DATA_TYPE) && defined(DEPTH_OUT) +/** Extracts a strided slice up to 4-dimensions + * + * @note Datatype should be given as a preprocessor argument using -DELEMENT_DATA_TYPE=type. e.g. -DELEMENT_DATA_TYPE=short + * @attention Output tensor depth should be given as a preprocessor argument using -DDEPTH_OUT=size. e.g. -DDEPTH_OUT=16 + * + * @param[in] input_ptr Pointer to the source image. Supported data types: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32 + * @param[in] input_stride_x Stride of the source image 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 image 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_offset_first_element_in_bytes The offset of the first element in the source image + * @param[out] output_ptr Pointer to the destination image. Supported data types: same as @p input_ptr + * @param[in] output_stride_x Stride of the destination image 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 image 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 source 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 source 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 image + * @param[in] starts The stride of X dimension of input tensor to be sliced. Supported data types: S32 + * @param[in] strides The stride of Y dimension of input tensor to be sliced. Supported data types: S32 + */ +__kernel void strided_slice_ex(TENSOR4D_DECLARATION(input), + TENSOR4D_DECLARATION(output), + const int4 starts, + const int4 strides) +{ + Tensor4D in = CONVERT_TO_TENSOR4D_STRUCT(input, 0); + Tensor4D out = CONVERT_TO_TENSOR4D_STRUCT(output, DEPTH_OUT); + + int4 indices_in = + { + starts.x + (strides.x * get_global_id(0)), + starts.y + (strides.y * get_global_id(1)), + starts.z + (strides.z * (get_global_id(2) % DEPTH_OUT)), + starts.w + (strides.w * (get_global_id(2) / DEPTH_OUT)), + }; + *((__global ELEMENT_DATA_TYPE *)out.ptr) = *((__global ELEMENT_DATA_TYPE *)tensor4D_offset(&in, indices_in.x, indices_in.y, indices_in.z, indices_in.w)); +} +#endif // defined(ELEMENT_DATA_TYPE) && defined(DEPTH_OUT) |