godot/thirdparty/embree/kernels/geometry/subdivpatch1_intersector.h

238 lines
12 KiB
C++

// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "subdivpatch1.h"
#include "grid_soa.h"
#include "grid_soa_intersector1.h"
#include "grid_soa_intersector_packet.h"
#include "../common/ray.h"
namespace embree
{
namespace isa
{
template<typename T>
class SubdivPatch1Precalculations : public T
{
public:
__forceinline SubdivPatch1Precalculations (const Ray& ray, const void* ptr)
: T(ray,ptr) {}
};
template<int K, typename T>
class SubdivPatch1PrecalculationsK : public T
{
public:
__forceinline SubdivPatch1PrecalculationsK (const vbool<K>& valid, RayK<K>& ray)
: T(valid,ray) {}
};
class SubdivPatch1Intersector1
{
public:
typedef GridSOA Primitive;
typedef SubdivPatch1Precalculations<GridSOAIntersector1::Precalculations> Precalculations;
static __forceinline bool processLazyNode(Precalculations& pre, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
{
lazy_node = prim->root(0);
pre.grid = (Primitive*)prim;
return false;
}
/*! Intersect a ray with the primitive. */
template<int N, bool robust>
static __forceinline void intersect(const Accel::Intersectors* This, Precalculations& pre, RayHit& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) GridSOAIntersector1::intersect(pre,ray,context,prim,lazy_node);
else processLazyNode(pre,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline void intersect(const Accel::Intersectors* This, Precalculations& pre, RayHit& ray, IntersectContext* context, size_t ty0, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node) {
intersect(This,pre,ray,context,prim,ty,tray,lazy_node);
}
/*! Test if the ray is occluded by the primitive */
template<int N, bool robust>
static __forceinline bool occluded(const Accel::Intersectors* This, Precalculations& pre, Ray& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) return GridSOAIntersector1::occluded(pre,ray,context,prim,lazy_node);
else return processLazyNode(pre,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline bool occluded(const Accel::Intersectors* This, Precalculations& pre, Ray& ray, IntersectContext* context, size_t ty0, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node) {
return occluded(This,pre,ray,context,prim,ty,tray,lazy_node);
}
template<int N>
static __forceinline bool pointQuery(const Accel::Intersectors* This, PointQuery* query, PointQueryContext* context, const Primitive* prim, size_t ty, const TravPointQuery<N> &tquery, size_t& lazy_node)
{
// TODO: PointQuery implement
assert(false && "not implemented");
return false;
}
template<int N>
static __forceinline bool pointQuery(const Accel::Intersectors* This, PointQuery* query, PointQueryContext* context, size_t ty0, const Primitive* prim, size_t ty, const TravPointQuery<N> &tquery, size_t& lazy_node) {
return pointQuery(This,query,context,prim,ty,tquery,lazy_node);
}
};
class SubdivPatch1MBIntersector1
{
public:
typedef SubdivPatch1 Primitive;
typedef GridSOAMBIntersector1::Precalculations Precalculations;
static __forceinline bool processLazyNode(Precalculations& pre, Ray& ray, IntersectContext* context, const Primitive* prim_i, size_t& lazy_node)
{
Primitive* prim = (Primitive*) prim_i;
GridSOA* grid = nullptr;
grid = (GridSOA*) prim->root_ref.get();
pre.itime = getTimeSegment(ray.time(), float(grid->time_steps-1), pre.ftime);
lazy_node = grid->root(pre.itime);
pre.grid = grid;
return false;
}
/*! Intersect a ray with the primitive. */
template<int N, bool robust>
static __forceinline void intersect(const Accel::Intersectors* This, Precalculations& pre, RayHit& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) GridSOAMBIntersector1::intersect(pre,ray,context,prim,lazy_node);
else processLazyNode(pre,ray,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline void intersect(const Accel::Intersectors* This, Precalculations& pre, RayHit& ray, IntersectContext* context, size_t ty0, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node) {
intersect(This,pre,ray,context,prim,ty,tray,lazy_node);
}
/*! Test if the ray is occluded by the primitive */
template<int N, bool robust>
static __forceinline bool occluded(const Accel::Intersectors* This, Precalculations& pre, Ray& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) return GridSOAMBIntersector1::occluded(pre,ray,context,prim,lazy_node);
else return processLazyNode(pre,ray,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline bool occluded(const Accel::Intersectors* This, Precalculations& pre, Ray& ray, IntersectContext* context, size_t ty0, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node) {
return occluded(This,pre,ray,context,prim,ty,tray,lazy_node);
}
template<int N>
static __forceinline bool pointQuery(const Accel::Intersectors* This, PointQuery* query, PointQueryContext* context, const Primitive* prim, size_t ty, const TravPointQuery<N> &tquery, size_t& lazy_node)
{
// TODO: PointQuery implement
assert(false && "not implemented");
return false;
}
template<int N, bool robust>
static __forceinline bool pointQuery(const Accel::Intersectors* This, PointQuery* query, PointQueryContext* context, size_t ty0, const Primitive* prim, size_t ty, const TravPointQuery<N> &tquery, size_t& lazy_node) {
return pointQuery(This,query,context,prim,ty,tquery,lazy_node);
}
};
template <int K>
struct SubdivPatch1IntersectorK
{
typedef GridSOA Primitive;
typedef SubdivPatch1PrecalculationsK<K,typename GridSOAIntersectorK<K>::Precalculations> Precalculations;
static __forceinline bool processLazyNode(Precalculations& pre, IntersectContext* context, const Primitive* prim, size_t& lazy_node)
{
lazy_node = prim->root(0);
pre.grid = (Primitive*)prim;
return false;
}
template<bool robust>
static __forceinline void intersect(const vbool<K>& valid, const Accel::Intersectors* This, Precalculations& pre, RayHitK<K>& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRayK<K, robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) GridSOAIntersectorK<K>::intersect(valid,pre,ray,context,prim,lazy_node);
else processLazyNode(pre,context,prim,lazy_node);
}
template<bool robust>
static __forceinline vbool<K> occluded(const vbool<K>& valid, const Accel::Intersectors* This, Precalculations& pre, RayK<K>& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRayK<K, robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) return GridSOAIntersectorK<K>::occluded(valid,pre,ray,context,prim,lazy_node);
else return processLazyNode(pre,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline void intersect(const Accel::Intersectors* This, Precalculations& pre, RayHitK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) GridSOAIntersectorK<K>::intersect(pre,ray,k,context,prim,lazy_node);
else processLazyNode(pre,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline bool occluded(const Accel::Intersectors* This, Precalculations& pre, RayK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) return GridSOAIntersectorK<K>::occluded(pre,ray,k,context,prim,lazy_node);
else return processLazyNode(pre,context,prim,lazy_node);
}
};
typedef SubdivPatch1IntersectorK<4> SubdivPatch1Intersector4;
typedef SubdivPatch1IntersectorK<8> SubdivPatch1Intersector8;
typedef SubdivPatch1IntersectorK<16> SubdivPatch1Intersector16;
template <int K>
struct SubdivPatch1MBIntersectorK
{
typedef SubdivPatch1 Primitive;
//typedef GridSOAMBIntersectorK<K>::Precalculations Precalculations;
typedef SubdivPatch1PrecalculationsK<K,typename GridSOAMBIntersectorK<K>::Precalculations> Precalculations;
static __forceinline bool processLazyNode(Precalculations& pre, IntersectContext* context, const Primitive* prim_i, size_t& lazy_node)
{
Primitive* prim = (Primitive*) prim_i;
GridSOA* grid = (GridSOA*) prim->root_ref.get();
lazy_node = grid->troot;
pre.grid = grid;
return false;
}
template<bool robust>
static __forceinline void intersect(const vbool<K>& valid, const Accel::Intersectors* This, Precalculations& pre, RayHitK<K>& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRayK<K, robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) GridSOAMBIntersectorK<K>::intersect(valid,pre,ray,context,prim,lazy_node);
else processLazyNode(pre,context,prim,lazy_node);
}
template<bool robust>
static __forceinline vbool<K> occluded(const vbool<K>& valid, const Accel::Intersectors* This, Precalculations& pre, RayK<K>& ray, IntersectContext* context, const Primitive* prim, size_t ty, const TravRayK<K, robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) return GridSOAMBIntersectorK<K>::occluded(valid,pre,ray,context,prim,lazy_node);
else return processLazyNode(pre,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline void intersect(const Accel::Intersectors* This, Precalculations& pre, RayHitK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) GridSOAMBIntersectorK<K>::intersect(pre,ray,k,context,prim,lazy_node);
else processLazyNode(pre,context,prim,lazy_node);
}
template<int N, bool robust>
static __forceinline bool occluded(const Accel::Intersectors* This, Precalculations& pre, RayK<K>& ray, size_t k, IntersectContext* context, const Primitive* prim, size_t ty, const TravRay<N,robust> &tray, size_t& lazy_node)
{
if (likely(ty == 0)) return GridSOAMBIntersectorK<K>::occluded(pre,ray,k,context,prim,lazy_node);
else return processLazyNode(pre,context,prim,lazy_node);
}
};
typedef SubdivPatch1MBIntersectorK<4> SubdivPatch1MBIntersector4;
typedef SubdivPatch1MBIntersectorK<8> SubdivPatch1MBIntersector8;
typedef SubdivPatch1MBIntersectorK<16> SubdivPatch1MBIntersector16;
}
}