| /* |
| * 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) |