1// Copyright 2009-2021 Intel Corporation
2// SPDX-License-Identifier: Apache-2.0
3
4#pragma once
5
6#include "default.h"
7
8namespace embree
9{
10 /*! A primitive reference stores the bounds of the primitive and its ID. */
11 struct __aligned(32) PrimRef
12 {
13 __forceinline PrimRef () {}
14
15#if defined(__AVX__)
16 __forceinline PrimRef(const PrimRef& v) {
17 vfloat8::store((float*)this,vfloat8::load((float*)&v));
18 }
19 __forceinline PrimRef& operator=(const PrimRef& v) {
20 vfloat8::store((float*)this,vfloat8::load((float*)&v)); return *this;
21 }
22#endif
23
24 __forceinline PrimRef (const BBox3fa& bounds, unsigned int geomID, unsigned int primID)
25 {
26 lower = Vec3fx(bounds.lower, geomID);
27 upper = Vec3fx(bounds.upper, primID);
28 }
29
30 __forceinline PrimRef (const BBox3fa& bounds, size_t id)
31 {
32#if defined(__64BIT__)
33 lower = Vec3fx(bounds.lower, (unsigned)(id & 0xFFFFFFFF));
34 upper = Vec3fx(bounds.upper, (unsigned)((id >> 32) & 0xFFFFFFFF));
35#else
36 lower = Vec3fx(bounds.lower, (unsigned)id);
37 upper = Vec3fx(bounds.upper, (unsigned)0);
38#endif
39 }
40
41 /*! calculates twice the center of the primitive */
42 __forceinline const Vec3fa center2() const {
43 return lower+upper;
44 }
45
46 /*! return the bounding box of the primitive */
47 __forceinline const BBox3fa bounds() const {
48 return BBox3fa(lower,upper);
49 }
50
51 /*! size for bin heuristic is 1 */
52 __forceinline unsigned size() const {
53 return 1;
54 }
55
56 /*! returns bounds and centroid used for binning */
57 __forceinline void binBoundsAndCenter(BBox3fa& bounds_o, Vec3fa& center_o) const
58 {
59 bounds_o = bounds();
60 center_o = embree::center2(box: bounds_o);
61 }
62
63 __forceinline unsigned& geomIDref() { // FIXME: remove !!!!!!!
64 return lower.u;
65 }
66 __forceinline unsigned& primIDref() { // FIXME: remove !!!!!!!
67 return upper.u;
68 }
69
70 /*! returns the geometry ID */
71 __forceinline unsigned geomID() const {
72 return lower.a;
73 }
74
75 /*! returns the primitive ID */
76 __forceinline unsigned primID() const {
77 return upper.a;
78 }
79
80 /*! returns an size_t sized ID */
81 __forceinline size_t ID() const {
82#if defined(__64BIT__)
83 return size_t(lower.u) + (size_t(upper.u) << 32);
84#else
85 return size_t(lower.u);
86#endif
87 }
88
89 /*! special function for operator< */
90 __forceinline uint64_t ID64() const {
91 return (((uint64_t)primID()) << 32) + (uint64_t)geomID();
92 }
93
94 /*! allows sorting the primrefs by ID */
95 friend __forceinline bool operator<(const PrimRef& p0, const PrimRef& p1) {
96 return p0.ID64() < p1.ID64();
97 }
98
99 /*! Outputs primitive reference to a stream. */
100 friend __forceinline embree_ostream operator<<(embree_ostream cout, const PrimRef& ref) {
101 return cout << "{ lower = " << ref.lower << ", upper = " << ref.upper << ", geomID = " << ref.geomID() << ", primID = " << ref.primID() << " }";
102 }
103
104 public:
105 Vec3fx lower; //!< lower bounds and geomID
106 Vec3fx upper; //!< upper bounds and primID
107 };
108
109 /*! fast exchange for PrimRefs */
110 __forceinline void xchg(PrimRef& a, PrimRef& b)
111 {
112#if defined(__AVX__)
113 const vfloat8 aa = vfloat8::load((float*)&a);
114 const vfloat8 bb = vfloat8::load((float*)&b);
115 vfloat8::store((float*)&a,bb);
116 vfloat8::store((float*)&b,aa);
117#else
118 std::swap(a&: a,b&: b);
119#endif
120 }
121
122 /************************************************************************************/
123 /************************************************************************************/
124 /************************************************************************************/
125 /************************************************************************************/
126
127 struct SubGridBuildData {
128 unsigned short sx,sy;
129 unsigned int primID;
130
131 __forceinline SubGridBuildData() {};
132 __forceinline SubGridBuildData(const unsigned int sx, const unsigned int sy, const unsigned int primID) : sx(sx), sy(sy), primID(primID) {};
133
134 __forceinline size_t x() const { return (size_t)sx & 0x7fff; }
135 __forceinline size_t y() const { return (size_t)sy & 0x7fff; }
136
137 };
138}
139

source code of qtquick3d/src/3rdparty/embree/kernels/common/primref.h