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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#include "acceln.h"
#include "ray.h"
#include "../../include/embree3/rtcore_ray.h"
#include "../../common/algorithms/parallel_for.h"
namespace embree
{
AccelN::AccelN()
: Accel(AccelData::TY_ACCELN), accels() {}
AccelN::~AccelN()
{
for (size_t i=0; i<accels.size(); i++)
delete accels[i];
}
void AccelN::accels_add(Accel* accel)
{
assert(accel);
accels.push_back(accel);
}
void AccelN::accels_init()
{
for (size_t i=0; i<accels.size(); i++)
delete accels[i];
accels.clear();
}
bool AccelN::pointQuery (Accel::Intersectors* This_in, PointQuery* query, PointQueryContext* context)
{
bool changed = false;
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++)
if (!This->accels[i]->isEmpty())
changed |= This->accels[i]->intersectors.pointQuery(query,context);
return changed;
}
void AccelN::intersect (Accel::Intersectors* This_in, RTCRayHit& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++)
if (!This->accels[i]->isEmpty())
This->accels[i]->intersectors.intersect(ray,context);
}
void AccelN::intersect4 (const void* valid, Accel::Intersectors* This_in, RTCRayHit4& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++)
if (!This->accels[i]->isEmpty())
This->accels[i]->intersectors.intersect4(valid,ray,context);
}
void AccelN::intersect8 (const void* valid, Accel::Intersectors* This_in, RTCRayHit8& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++)
if (!This->accels[i]->isEmpty())
This->accels[i]->intersectors.intersect8(valid,ray,context);
}
void AccelN::intersect16 (const void* valid, Accel::Intersectors* This_in, RTCRayHit16& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++)
if (!This->accels[i]->isEmpty())
This->accels[i]->intersectors.intersect16(valid,ray,context);
}
void AccelN::intersectN (Accel::Intersectors* This_in, RTCRayHitN** ray, const size_t N, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++)
if (!This->accels[i]->isEmpty())
This->accels[i]->intersectors.intersectN(ray,N,context);
}
void AccelN::occluded (Accel::Intersectors* This_in, RTCRay& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++) {
if (This->accels[i]->isEmpty()) continue;
This->accels[i]->intersectors.occluded(ray,context);
if (ray.tfar < 0.0f) break;
}
}
void AccelN::occluded4 (const void* valid, Accel::Intersectors* This_in, RTCRay4& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++) {
if (This->accels[i]->isEmpty()) continue;
This->accels[i]->intersectors.occluded4(valid,ray,context);
#if defined(__SSE2__) || defined(__ARM_NEON)
vbool4 valid0 = asBool(((vint4*)valid)[0]);
vbool4 hit0 = ((vfloat4*)ray.tfar)[0] >= vfloat4(zero);
if (unlikely(none(valid0 & hit0))) break;
#endif
}
}
void AccelN::occluded8 (const void* valid, Accel::Intersectors* This_in, RTCRay8& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++) {
if (This->accels[i]->isEmpty()) continue;
This->accels[i]->intersectors.occluded8(valid,ray,context);
#if defined(__SSE2__) || defined(__ARM_NEON) // FIXME: use higher ISA
vbool4 valid0 = asBool(((vint4*)valid)[0]);
vbool4 hit0 = ((vfloat4*)ray.tfar)[0] >= vfloat4(zero);
vbool4 valid1 = asBool(((vint4*)valid)[1]);
vbool4 hit1 = ((vfloat4*)ray.tfar)[1] >= vfloat4(zero);
if (unlikely((none((valid0 & hit0) | (valid1 & hit1))))) break;
#endif
}
}
void AccelN::occluded16 (const void* valid, Accel::Intersectors* This_in, RTCRay16& ray, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
for (size_t i=0; i<This->accels.size(); i++) {
if (This->accels[i]->isEmpty()) continue;
This->accels[i]->intersectors.occluded16(valid,ray,context);
#if defined(__SSE2__) || defined(__ARM_NEON) // FIXME: use higher ISA
vbool4 valid0 = asBool(((vint4*)valid)[0]);
vbool4 hit0 = ((vfloat4*)ray.tfar)[0] >= vfloat4(zero);
vbool4 valid1 = asBool(((vint4*)valid)[1]);
vbool4 hit1 = ((vfloat4*)ray.tfar)[1] >= vfloat4(zero);
vbool4 valid2 = asBool(((vint4*)valid)[2]);
vbool4 hit2 = ((vfloat4*)ray.tfar)[2] >= vfloat4(zero);
vbool4 valid3 = asBool(((vint4*)valid)[3]);
vbool4 hit3 = ((vfloat4*)ray.tfar)[3] >= vfloat4(zero);
if (unlikely((none((valid0 & hit0) | (valid1 & hit1) | (valid2 & hit2) | (valid3 & hit3))))) break;
#endif
}
}
void AccelN::occludedN (Accel::Intersectors* This_in, RTCRayN** ray, const size_t N, IntersectContext* context)
{
AccelN* This = (AccelN*)This_in->ptr;
size_t M = N;
for (size_t i=0; i<This->accels.size(); i++)
if (!This->accels[i]->isEmpty())
This->accels[i]->intersectors.occludedN(ray,M,context);
}
void AccelN::accels_print(size_t ident)
{
for (size_t i=0; i<accels.size(); i++)
{
for (size_t j=0; j<ident; j++) std::cout << " ";
std::cout << "accels[" << i << "]" << std::endl;
accels[i]->intersectors.print(ident+2);
}
}
void AccelN::accels_immutable()
{
for (size_t i=0; i<accels.size(); i++)
accels[i]->immutable();
}
void AccelN::accels_build ()
{
/* reduce memory consumption */
accels.shrink_to_fit();
/* build all acceleration structures in parallel */
parallel_for (accels.size(), [&] (size_t i) {
accels[i]->build();
});
/* create list of non-empty acceleration structures */
bool valid1 = true;
bool valid4 = true;
bool valid8 = true;
bool valid16 = true;
for (size_t i=0; i<accels.size(); i++) {
valid1 &= (bool) accels[i]->intersectors.intersector1;
valid4 &= (bool) accels[i]->intersectors.intersector4;
valid8 &= (bool) accels[i]->intersectors.intersector8;
valid16 &= (bool) accels[i]->intersectors.intersector16;
}
if (accels.size() == 1) {
type = accels[0]->type; // FIXME: should just assign entire Accel
bounds = accels[0]->bounds;
intersectors = accels[0]->intersectors;
}
else
{
type = AccelData::TY_ACCELN;
intersectors.ptr = this;
intersectors.intersector1 = Intersector1(&intersect,&occluded,&pointQuery,valid1 ? "AccelN::intersector1": nullptr);
intersectors.intersector4 = Intersector4(&intersect4,&occluded4,valid4 ? "AccelN::intersector4" : nullptr);
intersectors.intersector8 = Intersector8(&intersect8,&occluded8,valid8 ? "AccelN::intersector8" : nullptr);
intersectors.intersector16 = Intersector16(&intersect16,&occluded16,valid16 ? "AccelN::intersector16": nullptr);
intersectors.intersectorN = IntersectorN(&intersectN,&occludedN,"AccelN::intersectorN");
/*! calculate bounds */
bounds = empty;
for (size_t i=0; i<accels.size(); i++)
bounds.extend(accels[i]->bounds);
}
}
void AccelN::accels_select(bool filter)
{
for (size_t i=0; i<accels.size(); i++)
accels[i]->intersectors.select(filter);
}
void AccelN::accels_deleteGeometry(size_t geomID)
{
for (size_t i=0; i<accels.size(); i++)
accels[i]->deleteGeometry(geomID);
}
void AccelN::accels_clear()
{
for (size_t i=0; i<accels.size(); i++) {
accels[i]->clear();
}
}
}
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