vendor: OpenCV 5.0.0 snapshot at 40738fb16ceddb5fb3fea747585f7ce6abb0605b
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// 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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//
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// Copyright (C) 2025, SpaceMIT Inc., all rights reserved.
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// Third party copyrights are property of their respective owners.
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#include "rvv_hal.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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constexpr RVV_LMUL getLMUL(size_t sz) {
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// c++11 only allows exactly one return statement inside the function body modified by constexpr
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return sz == 1 ? LMUL_8 : (sz == 2 ? LMUL_4 : (sz == 4 ? LMUL_2 : LMUL_1));
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}
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static inline vbool1_t vlt(const vuint8m8_t &a, const vuint8m8_t &b, const int vl) { return __riscv_vmsltu(a, b, vl); }
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static inline vbool1_t vlt(const vint8m8_t &a, const vint8m8_t &b, const int vl) { return __riscv_vmslt(a, b, vl); }
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static inline vbool2_t vlt(const vuint16m8_t &a, const vuint16m8_t &b, const int vl) { return __riscv_vmsltu(a, b, vl); }
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static inline vbool2_t vlt(const vint16m8_t &a, const vint16m8_t &b, const int vl) { return __riscv_vmslt(a, b, vl); }
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static inline vbool4_t vlt(const vint32m8_t &a, const vint32m8_t &b, const int vl) { return __riscv_vmslt(a, b, vl); }
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static inline vbool4_t vlt(const vfloat32m8_t &a, const vfloat32m8_t &b, const int vl) { return __riscv_vmflt(a, b, vl); }
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static inline vbool1_t vle(const vuint8m8_t &a, const vuint8m8_t &b, const int vl) { return __riscv_vmsleu(a, b, vl); }
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static inline vbool1_t vle(const vint8m8_t &a, const vint8m8_t &b, const int vl) { return __riscv_vmsle(a, b, vl); }
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static inline vbool2_t vle(const vuint16m8_t &a, const vuint16m8_t &b, const int vl) { return __riscv_vmsleu(a, b, vl); }
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static inline vbool2_t vle(const vint16m8_t &a, const vint16m8_t &b, const int vl) { return __riscv_vmsle(a, b, vl); }
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static inline vbool4_t vle(const vint32m8_t &a, const vint32m8_t &b, const int vl) { return __riscv_vmsle(a, b, vl); }
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static inline vbool4_t vle(const vfloat32m8_t &a, const vfloat32m8_t &b, const int vl) { return __riscv_vmfle(a, b, vl); }
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static inline vbool1_t veq(const vuint8m8_t &a, const vuint8m8_t &b, const int vl) { return __riscv_vmseq(a, b, vl); }
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static inline vbool1_t veq(const vint8m8_t &a, const vint8m8_t &b, const int vl) { return __riscv_vmseq(a, b, vl); }
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static inline vbool2_t veq(const vuint16m8_t &a, const vuint16m8_t &b, const int vl) { return __riscv_vmseq(a, b, vl); }
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static inline vbool2_t veq(const vint16m8_t &a, const vint16m8_t &b, const int vl) { return __riscv_vmseq(a, b, vl); }
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static inline vbool4_t veq(const vint32m8_t &a, const vint32m8_t &b, const int vl) { return __riscv_vmseq(a, b, vl); }
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static inline vbool4_t veq(const vfloat32m8_t &a, const vfloat32m8_t &b, const int vl) { return __riscv_vmfeq(a, b, vl); }
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static inline vbool1_t vne(const vuint8m8_t &a, const vuint8m8_t &b, const int vl) { return __riscv_vmsne(a, b, vl); }
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static inline vbool1_t vne(const vint8m8_t &a, const vint8m8_t &b, const int vl) { return __riscv_vmsne(a, b, vl); }
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static inline vbool2_t vne(const vuint16m8_t &a, const vuint16m8_t &b, const int vl) { return __riscv_vmsne(a, b, vl); }
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static inline vbool2_t vne(const vint16m8_t &a, const vint16m8_t &b, const int vl) { return __riscv_vmsne(a, b, vl); }
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static inline vbool4_t vne(const vint32m8_t &a, const vint32m8_t &b, const int vl) { return __riscv_vmsne(a, b, vl); }
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static inline vbool4_t vne(const vfloat32m8_t &a, const vfloat32m8_t &b, const int vl) { return __riscv_vmfne(a, b, vl); }
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#define CV_HAL_RVV_COMPARE_OP(op_name) \
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template <typename _Tps> \
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struct op_name { \
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using in = RVV<_Tps, LMUL_8>; \
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using out = RVV<uint8_t, getLMUL(sizeof(_Tps))>; \
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constexpr static uint8_t one = 255; \
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static inline void run(const _Tps *src1, const _Tps *src2, uchar *dst, const int len) { \
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auto zero = out::vmv(0, out::setvlmax()); \
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int vl; \
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for (int i = 0; i < len; i += vl) { \
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vl = in::setvl(len - i); \
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auto v1 = in::vload(src1 + i, vl); \
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auto v2 = in::vload(src2 + i, vl); \
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auto m = v##op_name(v1, v2, vl); \
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out::vstore(dst + i, __riscv_vmerge(zero, one, m, vl), vl); \
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} \
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} \
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};
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CV_HAL_RVV_COMPARE_OP(lt)
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CV_HAL_RVV_COMPARE_OP(le)
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CV_HAL_RVV_COMPARE_OP(eq)
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CV_HAL_RVV_COMPARE_OP(ne)
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template <template<typename _Tps> class op, typename _Tps> static inline
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int compare_impl(const _Tps *src1_data, size_t src1_step, const _Tps *src2_data, size_t src2_step,
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uchar *dst_data, size_t dst_step, int width, int height) {
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if (src1_step == src2_step && src1_step == dst_step && src1_step == width * sizeof(_Tps)) {
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width *= height;
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height = 1;
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}
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for (int h = 0; h < height; h++) {
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const _Tps *src1 = reinterpret_cast<const _Tps*>((const uchar*)src1_data + h * src1_step);
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const _Tps *src2 = reinterpret_cast<const _Tps*>((const uchar*)src2_data + h * src2_step);
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uchar *dst = dst_data + h * dst_step;
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op<_Tps>::run(src1, src2, dst, width);
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}
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return CV_HAL_ERROR_OK;
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}
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template <typename _Tps> inline
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int compare(const _Tps *src1_data, size_t src1_step, const _Tps *src2_data, size_t src2_step,
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uchar *dst_data, size_t dst_step, int width, int height, int operation) {
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switch (operation) {
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case CMP_LT: return compare_impl<lt, _Tps>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height);
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case CMP_GT: return compare_impl<lt, _Tps>(src2_data, src2_step, src1_data, src1_step, dst_data, dst_step, width, height);
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case CMP_LE: return compare_impl<le, _Tps>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height);
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case CMP_GE: return compare_impl<le, _Tps>(src2_data, src2_step, src1_data, src1_step, dst_data, dst_step, width, height);
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case CMP_EQ: return compare_impl<eq, _Tps>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height);
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case CMP_NE: return compare_impl<ne, _Tps>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height);
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default: return CV_HAL_ERROR_NOT_IMPLEMENTED;
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}
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}
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} // namespace anonymous
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int cmp8u(const uchar *src1_data, size_t src1_step, const uchar *src2_data, size_t src2_step, uchar *dst_data, size_t dst_step, int width, int height, int operation) {
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return compare<uchar>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height, operation);
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}
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int cmp8s(const schar *src1_data, size_t src1_step, const schar *src2_data, size_t src2_step, uchar *dst_data, size_t dst_step, int width, int height, int operation) {
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return compare<schar>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height, operation);
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}
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int cmp16u(const ushort *src1_data, size_t src1_step, const ushort *src2_data, size_t src2_step, uchar *dst_data, size_t dst_step, int width, int height, int operation) {
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return compare<ushort>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height, operation);
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}
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int cmp16s(const short *src1_data, size_t src1_step, const short *src2_data, size_t src2_step, uchar *dst_data, size_t dst_step, int width, int height, int operation) {
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return compare<short>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height, operation);
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}
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int cmp32s(const int *src1_data, size_t src1_step, const int *src2_data, size_t src2_step, uchar *dst_data, size_t dst_step, int width, int height, int operation) {
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return compare<int>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height, operation);
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}
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int cmp32f(const float *src1_data, size_t src1_step, const float *src2_data, size_t src2_step, uchar *dst_data, size_t dst_step, int width, int height, int operation) {
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return compare<float>(src1_data, src1_step, src2_data, src2_step, dst_data, dst_step, width, height, operation);
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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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