mirror of
https://github.com/godotengine/godot.git
synced 2024-12-27 11:24:59 +08:00
767e374dce
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.
102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
// Copyright 2009-2021 Intel Corporation
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#pragma once
|
|
|
|
#include "curveNi.h"
|
|
|
|
namespace embree
|
|
{
|
|
template<int M>
|
|
struct CurveNv : public CurveNi<M>
|
|
{
|
|
using CurveNi<M>::N;
|
|
|
|
struct Type : public PrimitiveType {
|
|
const char* name() const;
|
|
size_t sizeActive(const char* This) const;
|
|
size_t sizeTotal(const char* This) const;
|
|
size_t getBytes(const char* This) const;
|
|
};
|
|
static Type type;
|
|
|
|
public:
|
|
|
|
/* Returns maximum number of stored primitives */
|
|
static __forceinline size_t max_size() { return M; }
|
|
|
|
/* Returns required number of primitive blocks for N primitives */
|
|
static __forceinline size_t blocks(size_t N) { return (N+M-1)/M; }
|
|
|
|
static __forceinline size_t bytes(size_t N)
|
|
{
|
|
const size_t f = N/M, r = N%M;
|
|
static_assert(sizeof(CurveNv) == 22+25*M+4*16*M, "internal data layout issue");
|
|
return f*sizeof(CurveNv) + (r!=0)*(22 + 25*r + 4*16*r);
|
|
}
|
|
|
|
public:
|
|
|
|
/*! Default constructor. */
|
|
__forceinline CurveNv () {}
|
|
|
|
/*! fill curve from curve list */
|
|
__forceinline void fill(const PrimRef* prims, size_t& begin, size_t _end, Scene* scene)
|
|
{
|
|
size_t end = min(begin+M,_end);
|
|
size_t N = end-begin;
|
|
|
|
/* encode all primitives */
|
|
for (size_t i=0; i<N; i++)
|
|
{
|
|
const PrimRef& prim = prims[begin+i];
|
|
const unsigned int geomID = prim.geomID();
|
|
const unsigned int primID = prim.primID();
|
|
CurveGeometry* mesh = (CurveGeometry*) scene->get(geomID);
|
|
const unsigned vtxID = mesh->curve(primID);
|
|
Vec3fa::storeu(&this->vertices(i,N)[0],mesh->vertex(vtxID+0));
|
|
Vec3fa::storeu(&this->vertices(i,N)[1],mesh->vertex(vtxID+1));
|
|
Vec3fa::storeu(&this->vertices(i,N)[2],mesh->vertex(vtxID+2));
|
|
Vec3fa::storeu(&this->vertices(i,N)[3],mesh->vertex(vtxID+3));
|
|
}
|
|
}
|
|
|
|
template<typename BVH, typename Allocator>
|
|
__forceinline static typename BVH::NodeRef createLeaf (BVH* bvh, const PrimRef* prims, const range<size_t>& set, const Allocator& alloc)
|
|
{
|
|
if (set.size() == 0)
|
|
return BVH::emptyNode;
|
|
|
|
/* fall back to CurveNi for oriented curves */
|
|
unsigned int geomID = prims[set.begin()].geomID();
|
|
if (bvh->scene->get(geomID)->getCurveType() == Geometry::GTY_SUBTYPE_ORIENTED_CURVE) {
|
|
return CurveNi<M>::createLeaf(bvh,prims,set,alloc);
|
|
}
|
|
if (bvh->scene->get(geomID)->getCurveBasis() == Geometry::GTY_BASIS_HERMITE) {
|
|
return CurveNi<M>::createLeaf(bvh,prims,set,alloc);
|
|
}
|
|
|
|
size_t start = set.begin();
|
|
size_t items = CurveNv::blocks(set.size());
|
|
size_t numbytes = CurveNv::bytes(set.size());
|
|
CurveNv* accel = (CurveNv*) alloc.malloc1(numbytes,BVH::byteAlignment);
|
|
for (size_t i=0; i<items; i++) {
|
|
accel[i].CurveNv<M>::fill(prims,start,set.end(),bvh->scene);
|
|
accel[i].CurveNi<M>::fill(prims,start,set.end(),bvh->scene);
|
|
}
|
|
return bvh->encodeLeaf((char*)accel,items);
|
|
};
|
|
|
|
public:
|
|
unsigned char data[4*16*M];
|
|
__forceinline Vec3fa* vertices(size_t i, size_t N) { return (Vec3fa*)CurveNi<M>::end(N)+4*i; }
|
|
__forceinline const Vec3fa* vertices(size_t i, size_t N) const { return (Vec3fa*)CurveNi<M>::end(N)+4*i; }
|
|
};
|
|
|
|
template<int M>
|
|
typename CurveNv<M>::Type CurveNv<M>::type;
|
|
|
|
typedef CurveNv<4> Curve4v;
|
|
typedef CurveNv<8> Curve8v;
|
|
}
|