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Diffstat (limited to 'thirdparty/embree-aarch64/kernels/subdiv/linear_bezier_patch.h')
| -rw-r--r-- | thirdparty/embree-aarch64/kernels/subdiv/linear_bezier_patch.h | 403 |
1 files changed, 0 insertions, 403 deletions
diff --git a/thirdparty/embree-aarch64/kernels/subdiv/linear_bezier_patch.h b/thirdparty/embree-aarch64/kernels/subdiv/linear_bezier_patch.h deleted file mode 100644 index f4a854af7f..0000000000 --- a/thirdparty/embree-aarch64/kernels/subdiv/linear_bezier_patch.h +++ /dev/null @@ -1,403 +0,0 @@ -// Copyright 2009-2020 Intel Corporation -// SPDX-License-Identifier: Apache-2.0 - -#pragma once - -#include "bezier_curve.h" - -namespace embree -{ - namespace isa - { - template<typename V> - struct TensorLinearQuadraticBezierSurface - { - QuadraticBezierCurve<V> L; - QuadraticBezierCurve<V> R; - - __forceinline TensorLinearQuadraticBezierSurface() {} - - __forceinline TensorLinearQuadraticBezierSurface(const TensorLinearQuadraticBezierSurface<V>& curve) - : L(curve.L), R(curve.R) {} - - __forceinline TensorLinearQuadraticBezierSurface& operator= (const TensorLinearQuadraticBezierSurface& other) { - L = other.L; R = other.R; return *this; - } - - __forceinline TensorLinearQuadraticBezierSurface(const QuadraticBezierCurve<V>& L, const QuadraticBezierCurve<V>& R) - : L(L), R(R) {} - - __forceinline BBox<V> bounds() const { - return merge(L.bounds(),R.bounds()); - } - }; - - template<> - struct TensorLinearQuadraticBezierSurface<Vec2fa> - { - QuadraticBezierCurve<vfloat4> LR; - - __forceinline TensorLinearQuadraticBezierSurface() {} - - __forceinline TensorLinearQuadraticBezierSurface(const TensorLinearQuadraticBezierSurface<Vec2fa>& curve) - : LR(curve.LR) {} - - __forceinline TensorLinearQuadraticBezierSurface& operator= (const TensorLinearQuadraticBezierSurface& other) { - LR = other.LR; return *this; - } - - __forceinline TensorLinearQuadraticBezierSurface(const QuadraticBezierCurve<vfloat4>& LR) - : LR(LR) {} - - __forceinline BBox<Vec2fa> bounds() const - { - const BBox<vfloat4> b = LR.bounds(); - const BBox<Vec2fa> bl(Vec2fa(b.lower),Vec2fa(b.upper)); - const BBox<Vec2fa> br(Vec2fa(shuffle<2,3,2,3>(b.lower)),Vec2fa(shuffle<2,3,2,3>(b.upper))); - return merge(bl,br); - } - }; - - template<typename V> - struct TensorLinearCubicBezierSurface - { - CubicBezierCurve<V> L; - CubicBezierCurve<V> R; - - __forceinline TensorLinearCubicBezierSurface() {} - - __forceinline TensorLinearCubicBezierSurface(const TensorLinearCubicBezierSurface& curve) - : L(curve.L), R(curve.R) {} - - __forceinline TensorLinearCubicBezierSurface& operator= (const TensorLinearCubicBezierSurface& other) { - L = other.L; R = other.R; return *this; - } - - __forceinline TensorLinearCubicBezierSurface(const CubicBezierCurve<V>& L, const CubicBezierCurve<V>& R) - : L(L), R(R) {} - - template<template<typename T> class SourceCurve> - __forceinline static TensorLinearCubicBezierSurface fromCenterAndNormalCurve(const SourceCurve<Vec3ff>& center, const SourceCurve<Vec3fa>& normal) - { - SourceCurve<Vec3ff> vcurve = center; - SourceCurve<Vec3fa> ncurve = normal; - - /* here we construct a patch which follows the curve l(t) = - * p(t) +/- r(t)*normalize(cross(n(t),dp(t))) */ - - const Vec3ff p0 = vcurve.eval(0.0f); - const Vec3ff dp0 = vcurve.eval_du(0.0f); - const Vec3ff ddp0 = vcurve.eval_dudu(0.0f); - - const Vec3fa n0 = ncurve.eval(0.0f); - const Vec3fa dn0 = ncurve.eval_du(0.0f); - - const Vec3ff p1 = vcurve.eval(1.0f); - const Vec3ff dp1 = vcurve.eval_du(1.0f); - const Vec3ff ddp1 = vcurve.eval_dudu(1.0f); - - const Vec3fa n1 = ncurve.eval(1.0f); - const Vec3fa dn1 = ncurve.eval_du(1.0f); - - const Vec3fa bt0 = cross(n0,dp0); - const Vec3fa dbt0 = cross(dn0,dp0) + cross(n0,ddp0); - - const Vec3fa bt1 = cross(n1,dp1); - const Vec3fa dbt1 = cross(dn1,dp1) + cross(n1,ddp1); - - const Vec3fa k0 = normalize(bt0); - const Vec3fa dk0 = dnormalize(bt0,dbt0); - - const Vec3fa k1 = normalize(bt1); - const Vec3fa dk1 = dnormalize(bt1,dbt1); - - const Vec3fa l0 = p0 - p0.w*k0; - const Vec3fa dl0 = dp0 - (dp0.w*k0 + p0.w*dk0); - - const Vec3fa r0 = p0 + p0.w*k0; - const Vec3fa dr0 = dp0 + (dp0.w*k0 + p0.w*dk0); - - const Vec3fa l1 = p1 - p1.w*k1; - const Vec3fa dl1 = dp1 - (dp1.w*k1 + p1.w*dk1); - - const Vec3fa r1 = p1 + p1.w*k1; - const Vec3fa dr1 = dp1 + (dp1.w*k1 + p1.w*dk1); - - const float scale = 1.0f/3.0f; - CubicBezierCurve<V> L(l0,l0+scale*dl0,l1-scale*dl1,l1); - CubicBezierCurve<V> R(r0,r0+scale*dr0,r1-scale*dr1,r1); - return TensorLinearCubicBezierSurface(L,R); - } - - __forceinline BBox<V> bounds() const { - return merge(L.bounds(),R.bounds()); - } - - __forceinline BBox3fa accurateBounds() const { - return merge(L.accurateBounds(),R.accurateBounds()); - } - - __forceinline CubicBezierCurve<Interval1f> reduce_v() const { - return merge(CubicBezierCurve<Interval<V>>(L),CubicBezierCurve<Interval<V>>(R)); - } - - __forceinline LinearBezierCurve<Interval1f> reduce_u() const { - return LinearBezierCurve<Interval1f>(L.bounds(),R.bounds()); - } - - __forceinline TensorLinearCubicBezierSurface<float> xfm(const V& dx) const { - return TensorLinearCubicBezierSurface<float>(L.xfm(dx),R.xfm(dx)); - } - - __forceinline TensorLinearCubicBezierSurface<vfloatx> vxfm(const V& dx) const { - return TensorLinearCubicBezierSurface<vfloatx>(L.vxfm(dx),R.vxfm(dx)); - } - - __forceinline TensorLinearCubicBezierSurface<float> xfm(const V& dx, const V& p) const { - return TensorLinearCubicBezierSurface<float>(L.xfm(dx,p),R.xfm(dx,p)); - } - - __forceinline TensorLinearCubicBezierSurface<Vec3fa> xfm(const LinearSpace3fa& space) const { - return TensorLinearCubicBezierSurface(L.xfm(space),R.xfm(space)); - } - - __forceinline TensorLinearCubicBezierSurface<Vec3fa> xfm(const LinearSpace3fa& space, const Vec3fa& p) const { - return TensorLinearCubicBezierSurface(L.xfm(space,p),R.xfm(space,p)); - } - - __forceinline TensorLinearCubicBezierSurface<Vec3fa> xfm(const LinearSpace3fa& space, const Vec3fa& p, const float s) const { - return TensorLinearCubicBezierSurface(L.xfm(space,p,s),R.xfm(space,p,s)); - } - - __forceinline TensorLinearCubicBezierSurface clip_u(const Interval1f& u) const { - return TensorLinearCubicBezierSurface(L.clip(u),R.clip(u)); - } - - __forceinline TensorLinearCubicBezierSurface clip_v(const Interval1f& v) const { - return TensorLinearCubicBezierSurface(clerp(L,R,V(v.lower)),clerp(L,R,V(v.upper))); - } - - __forceinline TensorLinearCubicBezierSurface clip(const Interval1f& u, const Interval1f& v) const { - return clip_v(v).clip_u(u); - } - - __forceinline void split_u(TensorLinearCubicBezierSurface& left, TensorLinearCubicBezierSurface& right, const float u = 0.5f) const - { - CubicBezierCurve<V> L0,L1; L.split(L0,L1,u); - CubicBezierCurve<V> R0,R1; R.split(R0,R1,u); - new (&left ) TensorLinearCubicBezierSurface(L0,R0); - new (&right) TensorLinearCubicBezierSurface(L1,R1); - } - - __forceinline TensorLinearCubicBezierSurface<Vec2vfx> vsplit_u(vboolx& valid, const BBox1f& u) const { - valid = true; clear(valid,VSIZEX-1); - return TensorLinearCubicBezierSurface<Vec2vfx>(L.split(u),R.split(u)); - } - - __forceinline V eval(const float u, const float v) const { - return clerp(L,R,V(v)).eval(u); - } - - __forceinline V eval_du(const float u, const float v) const { - return clerp(L,R,V(v)).eval_dt(u); - } - - __forceinline V eval_dv(const float u, const float v) const { - return (R-L).eval(u); - } - - __forceinline void eval(const float u, const float v, V& p, V& dpdu, V& dpdv) const - { - V p0, dp0du; L.eval(u,p0,dp0du); - V p1, dp1du; R.eval(u,p1,dp1du); - p = lerp(p0,p1,v); - dpdu = lerp(dp0du,dp1du,v); - dpdv = p1-p0; - } - - __forceinline TensorLinearQuadraticBezierSurface<V> derivative_u() const { - return TensorLinearQuadraticBezierSurface<V>(L.derivative(),R.derivative()); - } - - __forceinline CubicBezierCurve<V> derivative_v() const { - return R-L; - } - - __forceinline V axis_u() const { - return (L.end()-L.begin())+(R.end()-R.begin()); - } - - __forceinline V axis_v() const { - return (R.begin()-L.begin())+(R.end()-L.end()); - } - - friend embree_ostream operator<<(embree_ostream cout, const TensorLinearCubicBezierSurface& a) - { - return cout << "TensorLinearCubicBezierSurface" << embree_endl - << "{" << embree_endl - << " L = " << a.L << ", " << embree_endl - << " R = " << a.R << embree_endl - << "}"; - } - - friend __forceinline TensorLinearCubicBezierSurface clerp(const TensorLinearCubicBezierSurface& a, const TensorLinearCubicBezierSurface& b, const float t) { - return TensorLinearCubicBezierSurface(clerp(a.L,b.L,V(t)), clerp(a.R,b.R,V(t))); - } - }; - - template<> - struct TensorLinearCubicBezierSurface<Vec2fa> - { - CubicBezierCurve<vfloat4> LR; - - __forceinline TensorLinearCubicBezierSurface() {} - - __forceinline TensorLinearCubicBezierSurface(const TensorLinearCubicBezierSurface& curve) - : LR(curve.LR) {} - - __forceinline TensorLinearCubicBezierSurface& operator= (const TensorLinearCubicBezierSurface& other) { - LR = other.LR; return *this; - } - - __forceinline TensorLinearCubicBezierSurface(const CubicBezierCurve<vfloat4>& LR) - : LR(LR) {} - - __forceinline TensorLinearCubicBezierSurface(const CubicBezierCurve<Vec2fa>& L, const CubicBezierCurve<Vec2fa>& R) - : LR(shuffle<0,1,0,1>(vfloat4(L.v0),vfloat4(R.v0)),shuffle<0,1,0,1>(vfloat4(L.v1),vfloat4(R.v1)),shuffle<0,1,0,1>(vfloat4(L.v2),vfloat4(R.v2)),shuffle<0,1,0,1>(vfloat4(L.v3),vfloat4(R.v3))) {} - - __forceinline CubicBezierCurve<Vec2fa> getL() const { - return CubicBezierCurve<Vec2fa>(Vec2fa(LR.v0),Vec2fa(LR.v1),Vec2fa(LR.v2),Vec2fa(LR.v3)); - } - - __forceinline CubicBezierCurve<Vec2fa> getR() const { - return CubicBezierCurve<Vec2fa>(Vec2fa(shuffle<2,3,2,3>(LR.v0)),Vec2fa(shuffle<2,3,2,3>(LR.v1)),Vec2fa(shuffle<2,3,2,3>(LR.v2)),Vec2fa(shuffle<2,3,2,3>(LR.v3))); - } - - __forceinline BBox<Vec2fa> bounds() const - { - const BBox<vfloat4> b = LR.bounds(); - const BBox<Vec2fa> bl(Vec2fa(b.lower),Vec2fa(b.upper)); - const BBox<Vec2fa> br(Vec2fa(shuffle<2,3,2,3>(b.lower)),Vec2fa(shuffle<2,3,2,3>(b.upper))); - return merge(bl,br); - } - - __forceinline BBox1f bounds(const Vec2fa& axis) const - { - const CubicBezierCurve<vfloat4> LRx = LR; - const CubicBezierCurve<vfloat4> LRy(shuffle<1,0,3,2>(LR.v0),shuffle<1,0,3,2>(LR.v1),shuffle<1,0,3,2>(LR.v2),shuffle<1,0,3,2>(LR.v3)); - const CubicBezierCurve<vfloat4> LRa = cmadd(shuffle<0>(vfloat4(axis)),LRx,shuffle<1>(vfloat4(axis))*LRy); - const BBox<vfloat4> Lb = LRa.bounds(); - const BBox<vfloat4> Rb(shuffle<3>(Lb.lower),shuffle<3>(Lb.upper)); - const BBox<vfloat4> b = merge(Lb,Rb); - return BBox1f(b.lower[0],b.upper[0]); - } - - __forceinline TensorLinearCubicBezierSurface<float> xfm(const Vec2fa& dx) const - { - const CubicBezierCurve<vfloat4> LRx = LR; - const CubicBezierCurve<vfloat4> LRy(shuffle<1,0,3,2>(LR.v0),shuffle<1,0,3,2>(LR.v1),shuffle<1,0,3,2>(LR.v2),shuffle<1,0,3,2>(LR.v3)); - const CubicBezierCurve<vfloat4> LRa = cmadd(shuffle<0>(vfloat4(dx)),LRx,shuffle<1>(vfloat4(dx))*LRy); - return TensorLinearCubicBezierSurface<float>(CubicBezierCurve<float>(LRa.v0[0],LRa.v1[0],LRa.v2[0],LRa.v3[0]), - CubicBezierCurve<float>(LRa.v0[2],LRa.v1[2],LRa.v2[2],LRa.v3[2])); - } - - __forceinline TensorLinearCubicBezierSurface<float> xfm(const Vec2fa& dx, const Vec2fa& p) const - { - const vfloat4 pxyxy = shuffle<0,1,0,1>(vfloat4(p)); - const CubicBezierCurve<vfloat4> LRx = LR-pxyxy; - const CubicBezierCurve<vfloat4> LRy(shuffle<1,0,3,2>(LR.v0),shuffle<1,0,3,2>(LR.v1),shuffle<1,0,3,2>(LR.v2),shuffle<1,0,3,2>(LR.v3)); - const CubicBezierCurve<vfloat4> LRa = cmadd(shuffle<0>(vfloat4(dx)),LRx,shuffle<1>(vfloat4(dx))*LRy); - return TensorLinearCubicBezierSurface<float>(CubicBezierCurve<float>(LRa.v0[0],LRa.v1[0],LRa.v2[0],LRa.v3[0]), - CubicBezierCurve<float>(LRa.v0[2],LRa.v1[2],LRa.v2[2],LRa.v3[2])); - } - - __forceinline TensorLinearCubicBezierSurface clip_u(const Interval1f& u) const { - return TensorLinearCubicBezierSurface(LR.clip(u)); - } - - __forceinline TensorLinearCubicBezierSurface clip_v(const Interval1f& v) const - { - const CubicBezierCurve<vfloat4> LL(shuffle<0,1,0,1>(LR.v0),shuffle<0,1,0,1>(LR.v1),shuffle<0,1,0,1>(LR.v2),shuffle<0,1,0,1>(LR.v3)); - const CubicBezierCurve<vfloat4> RR(shuffle<2,3,2,3>(LR.v0),shuffle<2,3,2,3>(LR.v1),shuffle<2,3,2,3>(LR.v2),shuffle<2,3,2,3>(LR.v3)); - return TensorLinearCubicBezierSurface(clerp(LL,RR,vfloat4(v.lower,v.lower,v.upper,v.upper))); - } - - __forceinline TensorLinearCubicBezierSurface clip(const Interval1f& u, const Interval1f& v) const { - return clip_v(v).clip_u(u); - } - - __forceinline void split_u(TensorLinearCubicBezierSurface& left, TensorLinearCubicBezierSurface& right, const float u = 0.5f) const - { - CubicBezierCurve<vfloat4> LR0,LR1; LR.split(LR0,LR1,u); - new (&left ) TensorLinearCubicBezierSurface(LR0); - new (&right) TensorLinearCubicBezierSurface(LR1); - } - - __forceinline TensorLinearCubicBezierSurface<Vec2vfx> vsplit_u(vboolx& valid, const BBox1f& u) const { - valid = true; clear(valid,VSIZEX-1); - return TensorLinearCubicBezierSurface<Vec2vfx>(getL().split(u),getR().split(u)); - } - - __forceinline Vec2fa eval(const float u, const float v) const - { - const vfloat4 p = LR.eval(u); - return Vec2fa(lerp(shuffle<0,1,0,1>(p),shuffle<2,3,2,3>(p),v)); - } - - __forceinline Vec2fa eval_du(const float u, const float v) const - { - const vfloat4 dpdu = LR.eval_dt(u); - return Vec2fa(lerp(shuffle<0,1,0,1>(dpdu),shuffle<2,3,2,3>(dpdu),v)); - } - - __forceinline Vec2fa eval_dv(const float u, const float v) const - { - const vfloat4 p = LR.eval(u); - return Vec2fa(shuffle<2,3,2,3>(p)-shuffle<0,1,0,1>(p)); - } - - __forceinline void eval(const float u, const float v, Vec2fa& p, Vec2fa& dpdu, Vec2fa& dpdv) const - { - vfloat4 p0, dp0du; LR.eval(u,p0,dp0du); - p = Vec2fa(lerp(shuffle<0,1,0,1>(p0),shuffle<2,3,2,3>(p0),v)); - dpdu = Vec2fa(lerp(shuffle<0,1,0,1>(dp0du),shuffle<2,3,2,3>(dp0du),v)); - dpdv = Vec2fa(shuffle<2,3,2,3>(p0)-shuffle<0,1,0,1>(p0)); - } - - __forceinline TensorLinearQuadraticBezierSurface<Vec2fa> derivative_u() const { - return TensorLinearQuadraticBezierSurface<Vec2fa>(LR.derivative()); - } - - __forceinline CubicBezierCurve<Vec2fa> derivative_v() const { - return getR()-getL(); - } - - __forceinline Vec2fa axis_u() const - { - const CubicBezierCurve<Vec2fa> L = getL(); - const CubicBezierCurve<Vec2fa> R = getR(); - return (L.end()-L.begin())+(R.end()-R.begin()); - } - - __forceinline Vec2fa axis_v() const - { - const CubicBezierCurve<Vec2fa> L = getL(); - const CubicBezierCurve<Vec2fa> R = getR(); - return (R.begin()-L.begin())+(R.end()-L.end()); - } - - friend embree_ostream operator<<(embree_ostream cout, const TensorLinearCubicBezierSurface& a) - { - return cout << "TensorLinearCubicBezierSurface" << embree_endl - << "{" << embree_endl - << " L = " << a.getL() << ", " << embree_endl - << " R = " << a.getR() << embree_endl - << "}"; - } - }; - - typedef TensorLinearCubicBezierSurface<float> TensorLinearCubicBezierSurface1f; - typedef TensorLinearCubicBezierSurface<Vec2fa> TensorLinearCubicBezierSurface2fa; - typedef TensorLinearCubicBezierSurface<Vec3fa> TensorLinearCubicBezierSurface3fa; - } -} |