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Diffstat (limited to 'src/core/CL/cl_kernels/common/fft_scale.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/common/fft_scale.cl | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/common/fft_scale.cl b/src/core/CL/cl_kernels/common/fft_scale.cl new file mode 100644 index 0000000000..c799dd3b9e --- /dev/null +++ b/src/core/CL/cl_kernels/common/fft_scale.cl @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2019-2021 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" + +#if defined(VEC_SIZE) && defined(DATA_TYPE) +/** Computes the fft scale stage + * + * @param[in] src_ptr Pointer to the source tensor. Supported data types: F16/F32 + * @param[in] src_stride_x Stride of the source tensor 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 tensor 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_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[out] dst_ptr (Optional) Pointer to the destination tensor. Supported data types: same as @p src_ptr + * @param[in] dst_stride_x (Optional) Stride of the destination tensor in X dimension (in bytes) + * @param[in] dst_step_x (Optional) dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] dst_stride_y (Optional) Stride of the destination tensor in Y dimension (in bytes) + * @param[in] dst_step_y (Optional) dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] dst_stride_z (Optional) Stride of the source tensor in Z dimension (in bytes) + * @param[in] dst_step_z (Optional) dst_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] dst_offset_first_element_in_bytes (Optional) The offset of the first element in the destination tensor + * @param[in] scale Scale to apply to the complex value + */ +__kernel void fft_scale_conj( + TENSOR3D_DECLARATION(src) +#ifndef IN_PLACE + , + TENSOR3D_DECLARATION(dst) +#endif /* not IN_PLACE */ + , + float scale) +{ + // Get tensor pointers + Tensor3D src = CONVERT_TO_TENSOR3D_STRUCT(src); +#if defined(IN_PLACE) + Tensor3D dst = src; +#else /* IN_PLACE */ + Tensor3D dst = CONVERT_TO_TENSOR3D_STRUCT(dst); +#endif /* IN_PLACE */ + + // Store result +#if VEC_SIZE == 1 + *((__global DATA_TYPE *)dst.ptr) = (*(__global DATA_TYPE *)src.ptr) / (DATA_TYPE)scale; +#elif VEC_SIZE == 2 + // Load data + VEC_DATA_TYPE(DATA_TYPE, 2) + data = vload2(0, (__global DATA_TYPE *)src.ptr); + data /= (DATA_TYPE)scale; +#if defined(CONJ) + vstore2((VEC_DATA_TYPE(DATA_TYPE, 2))(data.s0, -data.s1), 0, (__global DATA_TYPE *)dst.ptr); +#else // defined(CONJ) + vstore2(data, 0, (__global DATA_TYPE *)dst.ptr); +#endif // defined(CONJ) +#else // VEC_SIZE == 1 +#error "vec_size of 1 and 2 are supported" +#endif // VEC_SIZE == 1 +} +#endif // defined(VEC_SIZE) && defined(DATA_TYPE)
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