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547cef4e88
hal/riscv-rvv: refactor the building process #27301 Current hal/riscv-rvv is built with all headers without building an object. This slows down the compilation progress, especially when re-compiling for minor changes in those headers (~170 files need to be re-compiled). This patch solves the problem. ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [ ] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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// Copyright (C) 2025, Institute of Software, Chinese Academy of Sciences.
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#include "rvv_hal.hpp"
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#include "common.hpp"
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namespace cv { namespace rvv_hal { namespace core {
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#if CV_HAL_RVV_1P0_ENABLED
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namespace {
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template <typename SQRT_T, typename T = typename SQRT_T::T::ElemType>
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inline int magnitude(const T* x, const T* y, T* dst, int len)
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{
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size_t vl;
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for (; len > 0; len -= (int)vl, x += vl, y += vl, dst += vl)
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{
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vl = SQRT_T::T::setvl(len);
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auto vx = SQRT_T::T::vload(x, vl);
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auto vy = SQRT_T::T::vload(y, vl);
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auto vmag = common::sqrt<SQRT_T::iter_times>(__riscv_vfmadd(vx, vx, __riscv_vfmul(vy, vy, vl), vl), vl);
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SQRT_T::T::vstore(dst, vmag, vl);
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}
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return CV_HAL_ERROR_OK;
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}
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} // anonymous
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int magnitude32f(const float *x, const float *y, float *dst, int len) {
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return magnitude<common::Sqrt32f<RVV_F32M8>>(x, y, dst, len);
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}
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int magnitude64f(const double *x, const double *y, double *dst, int len) {
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return magnitude<common::Sqrt64f<RVV_F64M8>>(x, y, dst, len);
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}
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#endif // CV_HAL_RVV_1P0_ENABLED
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}}} // cv::rvv_hal::core
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