a69cc9f13d
Since Embree v3.13.0 supports AARCH64, switch back to the
official repo instead of using Embree-aarch64.
`thirdparty/embree/patches/godot-changes.patch` should now contain
an accurate diff of the changes done to the library.
(cherry picked from commit 767e374dce)
445 lines
21 KiB
C++
445 lines
21 KiB
C++
// Copyright 2009-2021 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "grid_soa.h"
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#include "../common/ray.h"
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#include "triangle_intersector_pluecker.h"
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namespace embree
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{
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namespace isa
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{
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template<int K>
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struct MapUV0
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{
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const float* const grid_uv;
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size_t ofs00, ofs01, ofs10, ofs11;
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__forceinline MapUV0(const float* const grid_uv, size_t ofs00, size_t ofs01, size_t ofs10, size_t ofs11)
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: grid_uv(grid_uv), ofs00(ofs00), ofs01(ofs01), ofs10(ofs10), ofs11(ofs11) {}
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__forceinline void operator() (vfloat<K>& u, vfloat<K>& v, Vec3vf<K>& Ng) const {
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const vfloat<K> uv00(grid_uv[ofs00]);
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const vfloat<K> uv01(grid_uv[ofs01]);
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const vfloat<K> uv10(grid_uv[ofs10]);
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const vfloat<K> uv11(grid_uv[ofs11]);
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const Vec2vf<K> uv0 = GridSOA::decodeUV(uv00);
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const Vec2vf<K> uv1 = GridSOA::decodeUV(uv01);
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const Vec2vf<K> uv2 = GridSOA::decodeUV(uv10);
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const Vec2vf<K> uv = madd(u,uv1,madd(v,uv2,(1.0f-u-v)*uv0));
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u = uv[0]; v = uv[1];
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}
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};
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template<int K>
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struct MapUV1
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{
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const float* const grid_uv;
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size_t ofs00, ofs01, ofs10, ofs11;
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__forceinline MapUV1(const float* const grid_uv, size_t ofs00, size_t ofs01, size_t ofs10, size_t ofs11)
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: grid_uv(grid_uv), ofs00(ofs00), ofs01(ofs01), ofs10(ofs10), ofs11(ofs11) {}
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__forceinline void operator() (vfloat<K>& u, vfloat<K>& v, Vec3vf<K>& Ng) const {
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const vfloat<K> uv00(grid_uv[ofs00]);
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const vfloat<K> uv01(grid_uv[ofs01]);
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const vfloat<K> uv10(grid_uv[ofs10]);
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const vfloat<K> uv11(grid_uv[ofs11]);
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const Vec2vf<K> uv0 = GridSOA::decodeUV(uv10);
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const Vec2vf<K> uv1 = GridSOA::decodeUV(uv01);
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const Vec2vf<K> uv2 = GridSOA::decodeUV(uv11);
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const Vec2vf<K> uv = madd(u,uv1,madd(v,uv2,(1.0f-u-v)*uv0));
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u = uv[0]; v = uv[1];
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}
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};
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template<int K>
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class GridSOAIntersectorK
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{
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public:
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typedef void Primitive;
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class Precalculations
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{
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#if defined(__AVX__)
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static const int M = 8;
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#else
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static const int M = 4;
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#endif
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public:
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__forceinline Precalculations (const vbool<K>& valid, const RayK<K>& ray)
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: grid(nullptr), intersector(valid,ray) {}
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public:
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GridSOA* grid;
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PlueckerIntersectorK<M,K> intersector; // FIXME: use quad intersector
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};
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/*! Intersect a ray with the primitive. */
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static __forceinline void intersect(const vbool<K>& valid_i, Precalculations& pre, RayHitK<K>& ray, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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const size_t dim_offset = pre.grid->dim_offset;
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const size_t line_offset = pre.grid->width;
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const float* const grid_x = pre.grid->decodeLeaf(0,prim);
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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const size_t max_x = pre.grid->width == 2 ? 1 : 2;
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const size_t max_y = pre.grid->height == 2 ? 1 : 2;
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for (size_t y=0; y<max_y; y++)
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{
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for (size_t x=0; x<max_x; x++)
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{
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const size_t ofs00 = (y+0)*line_offset+(x+0);
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const size_t ofs01 = (y+0)*line_offset+(x+1);
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const size_t ofs10 = (y+1)*line_offset+(x+0);
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const size_t ofs11 = (y+1)*line_offset+(x+1);
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const Vec3vf<K> p00(grid_x[ofs00],grid_y[ofs00],grid_z[ofs00]);
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const Vec3vf<K> p01(grid_x[ofs01],grid_y[ofs01],grid_z[ofs01]);
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const Vec3vf<K> p10(grid_x[ofs10],grid_y[ofs10],grid_z[ofs10]);
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const Vec3vf<K> p11(grid_x[ofs11],grid_y[ofs11],grid_z[ofs11]);
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pre.intersector.intersectK(valid_i,ray,p00,p01,p10,MapUV0<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),IntersectKEpilogMU<1,K,true>(ray,context,pre.grid->geomID(),pre.grid->primID()));
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pre.intersector.intersectK(valid_i,ray,p10,p01,p11,MapUV1<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),IntersectKEpilogMU<1,K,true>(ray,context,pre.grid->geomID(),pre.grid->primID()));
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}
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}
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}
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/*! Test if the ray is occluded by the primitive */
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static __forceinline vbool<K> occluded(const vbool<K>& valid_i, Precalculations& pre, RayK<K>& ray, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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const size_t dim_offset = pre.grid->dim_offset;
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const size_t line_offset = pre.grid->width;
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const float* const grid_x = pre.grid->decodeLeaf(0,prim);
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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vbool<K> valid = valid_i;
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const size_t max_x = pre.grid->width == 2 ? 1 : 2;
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const size_t max_y = pre.grid->height == 2 ? 1 : 2;
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for (size_t y=0; y<max_y; y++)
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{
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for (size_t x=0; x<max_x; x++)
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{
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const size_t ofs00 = (y+0)*line_offset+(x+0);
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const size_t ofs01 = (y+0)*line_offset+(x+1);
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const size_t ofs10 = (y+1)*line_offset+(x+0);
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const size_t ofs11 = (y+1)*line_offset+(x+1);
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const Vec3vf<K> p00(grid_x[ofs00],grid_y[ofs00],grid_z[ofs00]);
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const Vec3vf<K> p01(grid_x[ofs01],grid_y[ofs01],grid_z[ofs01]);
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const Vec3vf<K> p10(grid_x[ofs10],grid_y[ofs10],grid_z[ofs10]);
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const Vec3vf<K> p11(grid_x[ofs11],grid_y[ofs11],grid_z[ofs11]);
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pre.intersector.intersectK(valid,ray,p00,p01,p10,MapUV0<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),OccludedKEpilogMU<1,K,true>(valid,ray,context,pre.grid->geomID(),pre.grid->primID()));
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if (none(valid)) break;
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pre.intersector.intersectK(valid,ray,p10,p01,p11,MapUV1<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),OccludedKEpilogMU<1,K,true>(valid,ray,context,pre.grid->geomID(),pre.grid->primID()));
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if (none(valid)) break;
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}
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}
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return !valid;
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}
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template<typename Loader>
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static __forceinline void intersect(RayHitK<K>& ray, size_t k,
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IntersectContext* context,
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const float* const grid_x,
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const size_t line_offset,
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const size_t lines,
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Precalculations& pre)
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{
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typedef typename Loader::vfloat vfloat;
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const size_t dim_offset = pre.grid->dim_offset;
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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Vec3<vfloat> v0, v1, v2; Loader::gather(grid_x,grid_y,grid_z,line_offset,lines,v0,v1,v2);
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pre.intersector.intersect(ray,k,v0,v1,v2,GridSOA::MapUV<Loader>(grid_uv,line_offset,lines),Intersect1KEpilogMU<Loader::M,K,true>(ray,k,context,pre.grid->geomID(),pre.grid->primID()));
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};
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template<typename Loader>
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static __forceinline bool occluded(RayK<K>& ray, size_t k,
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IntersectContext* context,
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const float* const grid_x,
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const size_t line_offset,
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const size_t lines,
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Precalculations& pre)
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{
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typedef typename Loader::vfloat vfloat;
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const size_t dim_offset = pre.grid->dim_offset;
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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Vec3<vfloat> v0, v1, v2; Loader::gather(grid_x,grid_y,grid_z,line_offset,lines,v0,v1,v2);
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return pre.intersector.intersect(ray,k,v0,v1,v2,GridSOA::MapUV<Loader>(grid_uv,line_offset,lines),Occluded1KEpilogMU<Loader::M,K,true>(ray,k,context,pre.grid->geomID(),pre.grid->primID()));
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}
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/*! Intersect a ray with the primitive. */
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static __forceinline void intersect(Precalculations& pre, RayHitK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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const size_t line_offset = pre.grid->width;
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const size_t lines = pre.grid->height;
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const float* const grid_x = pre.grid->decodeLeaf(0,prim);
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#if defined(__AVX__)
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intersect<GridSOA::Gather3x3>( ray, k, context, grid_x, line_offset, lines, pre);
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#else
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intersect<GridSOA::Gather2x3>(ray, k, context, grid_x , line_offset, lines, pre);
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if (likely(lines > 2))
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intersect<GridSOA::Gather2x3>(ray, k, context, grid_x+line_offset, line_offset, lines, pre);
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#endif
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}
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/*! Test if the ray is occluded by the primitive */
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static __forceinline bool occluded(Precalculations& pre, RayK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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const size_t line_offset = pre.grid->width;
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const size_t lines = pre.grid->height;
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const float* const grid_x = pre.grid->decodeLeaf(0,prim);
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#if defined(__AVX__)
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return occluded<GridSOA::Gather3x3>( ray, k, context, grid_x, line_offset, lines, pre);
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#else
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if (occluded<GridSOA::Gather2x3>(ray, k, context, grid_x , line_offset, lines, pre)) return true;
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if (likely(lines > 2))
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if (occluded<GridSOA::Gather2x3>(ray, k, context, grid_x+line_offset, line_offset, lines, pre)) return true;
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#endif
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return false;
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}
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};
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template<int K>
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class GridSOAMBIntersectorK
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{
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public:
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typedef void Primitive;
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typedef typename GridSOAIntersectorK<K>::Precalculations Precalculations;
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/*! Intersect a ray with the primitive. */
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static __forceinline void intersect(const vbool<K>& valid_i, Precalculations& pre, RayHitK<K>& ray, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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vfloat<K> vftime;
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vint<K> vitime = getTimeSegment<K>(ray.time(), vfloat<K>((float)(pre.grid->time_steps-1)), vftime);
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vbool<K> valid1 = valid_i;
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while (any(valid1)) {
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const size_t j = bsf(movemask(valid1));
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const int itime = vitime[j];
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const vbool<K> valid2 = valid1 & (itime == vitime);
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valid1 = valid1 & !valid2;
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intersect(valid2,pre,ray,vftime,itime,context,prim,lazy_node);
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}
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}
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/*! Intersect a ray with the primitive. */
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static __forceinline void intersect(const vbool<K>& valid_i, Precalculations& pre, RayHitK<K>& ray, const vfloat<K>& ftime, int itime, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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const size_t grid_offset = pre.grid->gridBytes >> 2;
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const size_t dim_offset = pre.grid->dim_offset;
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const size_t line_offset = pre.grid->width;
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const float* const grid_x = pre.grid->decodeLeaf(itime,prim);
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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const size_t max_x = pre.grid->width == 2 ? 1 : 2;
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const size_t max_y = pre.grid->height == 2 ? 1 : 2;
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for (size_t y=0; y<max_y; y++)
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{
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for (size_t x=0; x<max_x; x++)
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{
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size_t ofs00 = (y+0)*line_offset+(x+0);
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size_t ofs01 = (y+0)*line_offset+(x+1);
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size_t ofs10 = (y+1)*line_offset+(x+0);
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size_t ofs11 = (y+1)*line_offset+(x+1);
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const Vec3vf<K> a00(grid_x[ofs00],grid_y[ofs00],grid_z[ofs00]);
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const Vec3vf<K> a01(grid_x[ofs01],grid_y[ofs01],grid_z[ofs01]);
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const Vec3vf<K> a10(grid_x[ofs10],grid_y[ofs10],grid_z[ofs10]);
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const Vec3vf<K> a11(grid_x[ofs11],grid_y[ofs11],grid_z[ofs11]);
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ofs00 += grid_offset;
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ofs01 += grid_offset;
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ofs10 += grid_offset;
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ofs11 += grid_offset;
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const Vec3vf<K> b00(grid_x[ofs00],grid_y[ofs00],grid_z[ofs00]);
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const Vec3vf<K> b01(grid_x[ofs01],grid_y[ofs01],grid_z[ofs01]);
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const Vec3vf<K> b10(grid_x[ofs10],grid_y[ofs10],grid_z[ofs10]);
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const Vec3vf<K> b11(grid_x[ofs11],grid_y[ofs11],grid_z[ofs11]);
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const Vec3vf<K> p00 = lerp(a00,b00,ftime);
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const Vec3vf<K> p01 = lerp(a01,b01,ftime);
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const Vec3vf<K> p10 = lerp(a10,b10,ftime);
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const Vec3vf<K> p11 = lerp(a11,b11,ftime);
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pre.intersector.intersectK(valid_i,ray,p00,p01,p10,MapUV0<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),IntersectKEpilogMU<1,K,true>(ray,context,pre.grid->geomID(),pre.grid->primID()));
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pre.intersector.intersectK(valid_i,ray,p10,p01,p11,MapUV1<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),IntersectKEpilogMU<1,K,true>(ray,context,pre.grid->geomID(),pre.grid->primID()));
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}
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}
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}
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/*! Test if the ray is occluded by the primitive */
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static __forceinline vbool<K> occluded(const vbool<K>& valid_i, Precalculations& pre, RayK<K>& ray, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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vfloat<K> vftime;
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vint<K> vitime = getTimeSegment<K>(ray.time(), vfloat<K>((float)(pre.grid->time_steps-1)), vftime);
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vbool<K> valid_o = valid_i;
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vbool<K> valid1 = valid_i;
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while (any(valid1)) {
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const int j = int(bsf(movemask(valid1)));
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const int itime = vitime[j];
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const vbool<K> valid2 = valid1 & (itime == vitime);
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valid1 = valid1 & !valid2;
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valid_o &= !valid2 | occluded(valid2,pre,ray,vftime,itime,context,prim,lazy_node);
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}
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return !valid_o;
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}
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/*! Test if the ray is occluded by the primitive */
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static __forceinline vbool<K> occluded(const vbool<K>& valid_i, Precalculations& pre, RayK<K>& ray, const vfloat<K>& ftime, int itime, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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const size_t grid_offset = pre.grid->gridBytes >> 2;
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const size_t dim_offset = pre.grid->dim_offset;
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const size_t line_offset = pre.grid->width;
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const float* const grid_x = pre.grid->decodeLeaf(itime,prim);
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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vbool<K> valid = valid_i;
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const size_t max_x = pre.grid->width == 2 ? 1 : 2;
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const size_t max_y = pre.grid->height == 2 ? 1 : 2;
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for (size_t y=0; y<max_y; y++)
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{
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for (size_t x=0; x<max_x; x++)
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{
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size_t ofs00 = (y+0)*line_offset+(x+0);
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size_t ofs01 = (y+0)*line_offset+(x+1);
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size_t ofs10 = (y+1)*line_offset+(x+0);
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size_t ofs11 = (y+1)*line_offset+(x+1);
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const Vec3vf<K> a00(grid_x[ofs00],grid_y[ofs00],grid_z[ofs00]);
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const Vec3vf<K> a01(grid_x[ofs01],grid_y[ofs01],grid_z[ofs01]);
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const Vec3vf<K> a10(grid_x[ofs10],grid_y[ofs10],grid_z[ofs10]);
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const Vec3vf<K> a11(grid_x[ofs11],grid_y[ofs11],grid_z[ofs11]);
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ofs00 += grid_offset;
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ofs01 += grid_offset;
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ofs10 += grid_offset;
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ofs11 += grid_offset;
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const Vec3vf<K> b00(grid_x[ofs00],grid_y[ofs00],grid_z[ofs00]);
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const Vec3vf<K> b01(grid_x[ofs01],grid_y[ofs01],grid_z[ofs01]);
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const Vec3vf<K> b10(grid_x[ofs10],grid_y[ofs10],grid_z[ofs10]);
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const Vec3vf<K> b11(grid_x[ofs11],grid_y[ofs11],grid_z[ofs11]);
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const Vec3vf<K> p00 = lerp(a00,b00,ftime);
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const Vec3vf<K> p01 = lerp(a01,b01,ftime);
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const Vec3vf<K> p10 = lerp(a10,b10,ftime);
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const Vec3vf<K> p11 = lerp(a11,b11,ftime);
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pre.intersector.intersectK(valid,ray,p00,p01,p10,MapUV0<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),OccludedKEpilogMU<1,K,true>(valid,ray,context,pre.grid->geomID(),pre.grid->primID()));
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if (none(valid)) break;
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pre.intersector.intersectK(valid,ray,p10,p01,p11,MapUV1<K>(grid_uv,ofs00,ofs01,ofs10,ofs11),OccludedKEpilogMU<1,K,true>(valid,ray,context,pre.grid->geomID(),pre.grid->primID()));
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if (none(valid)) break;
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}
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}
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return valid;
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}
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template<typename Loader>
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static __forceinline void intersect(RayHitK<K>& ray, size_t k,
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const float ftime,
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IntersectContext* context,
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const float* const grid_x,
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const size_t line_offset,
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const size_t lines,
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Precalculations& pre)
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{
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typedef typename Loader::vfloat vfloat;
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const size_t grid_offset = pre.grid->gridBytes >> 2;
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const size_t dim_offset = pre.grid->dim_offset;
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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Vec3<vfloat> a0, a1, a2;
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Loader::gather(grid_x,grid_y,grid_z,line_offset,lines,a0,a1,a2);
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Vec3<vfloat> b0, b1, b2;
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Loader::gather(grid_x+grid_offset,grid_y+grid_offset,grid_z+grid_offset,line_offset,lines,b0,b1,b2);
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Vec3<vfloat> v0 = lerp(a0,b0,vfloat(ftime));
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Vec3<vfloat> v1 = lerp(a1,b1,vfloat(ftime));
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Vec3<vfloat> v2 = lerp(a2,b2,vfloat(ftime));
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pre.intersector.intersect(ray,k,v0,v1,v2,GridSOA::MapUV<Loader>(grid_uv,line_offset,lines),Intersect1KEpilogMU<Loader::M,K,true>(ray,k,context,pre.grid->geomID(),pre.grid->primID()));
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};
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template<typename Loader>
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static __forceinline bool occluded(RayK<K>& ray, size_t k,
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const float ftime,
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IntersectContext* context,
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const float* const grid_x,
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const size_t line_offset,
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const size_t lines,
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Precalculations& pre)
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{
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typedef typename Loader::vfloat vfloat;
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const size_t grid_offset = pre.grid->gridBytes >> 2;
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const size_t dim_offset = pre.grid->dim_offset;
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const float* const grid_y = grid_x + 1 * dim_offset;
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const float* const grid_z = grid_x + 2 * dim_offset;
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const float* const grid_uv = grid_x + 3 * dim_offset;
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Vec3<vfloat> a0, a1, a2;
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Loader::gather(grid_x,grid_y,grid_z,line_offset,lines,a0,a1,a2);
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Vec3<vfloat> b0, b1, b2;
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Loader::gather(grid_x+grid_offset,grid_y+grid_offset,grid_z+grid_offset,line_offset,lines,b0,b1,b2);
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Vec3<vfloat> v0 = lerp(a0,b0,vfloat(ftime));
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Vec3<vfloat> v1 = lerp(a1,b1,vfloat(ftime));
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Vec3<vfloat> v2 = lerp(a2,b2,vfloat(ftime));
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return pre.intersector.intersect(ray,k,v0,v1,v2,GridSOA::MapUV<Loader>(grid_uv,line_offset,lines),Occluded1KEpilogMU<Loader::M,K,true>(ray,k,context,pre.grid->geomID(),pre.grid->primID()));
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}
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/*! Intersect a ray with the primitive. */
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static __forceinline void intersect(Precalculations& pre, RayHitK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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float ftime;
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int itime = getTimeSegment(ray.time()[k], float(pre.grid->time_steps-1), ftime);
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const size_t line_offset = pre.grid->width;
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const size_t lines = pre.grid->height;
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const float* const grid_x = pre.grid->decodeLeaf(itime,prim);
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#if defined(__AVX__)
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intersect<GridSOA::Gather3x3>( ray, k, ftime, context, grid_x, line_offset, lines, pre);
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#else
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intersect<GridSOA::Gather2x3>(ray, k, ftime, context, grid_x, line_offset, lines, pre);
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if (likely(lines > 2))
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intersect<GridSOA::Gather2x3>(ray, k, ftime, context, grid_x+line_offset, line_offset, lines, pre);
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#endif
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}
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/*! Test if the ray is occluded by the primitive */
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static __forceinline bool occluded(Precalculations& pre, RayK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
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{
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float ftime;
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int itime = getTimeSegment(ray.time()[k], float(pre.grid->time_steps-1), ftime);
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const size_t line_offset = pre.grid->width;
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const size_t lines = pre.grid->height;
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const float* const grid_x = pre.grid->decodeLeaf(itime,prim);
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#if defined(__AVX__)
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return occluded<GridSOA::Gather3x3>( ray, k, ftime, context, grid_x, line_offset, lines, pre);
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#else
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if (occluded<GridSOA::Gather2x3>(ray, k, ftime, context, grid_x, line_offset, lines, pre)) return true;
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if (likely(lines > 2))
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if (occluded<GridSOA::Gather2x3>(ray, k, ftime, context, grid_x+line_offset, line_offset, lines, pre)) return true;
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#endif
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return false;
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}
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};
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}
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}
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