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Diffstat (limited to 'thirdparty/embree/kernels/common/primref.h')
-rw-r--r-- | thirdparty/embree/kernels/common/primref.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/thirdparty/embree/kernels/common/primref.h b/thirdparty/embree/kernels/common/primref.h new file mode 100644 index 0000000000..d61763487b --- /dev/null +++ b/thirdparty/embree/kernels/common/primref.h @@ -0,0 +1,138 @@ +// Copyright 2009-2021 Intel Corporation +// SPDX-License-Identifier: Apache-2.0 + +#pragma once + +#include "default.h" + +namespace embree +{ + /*! A primitive reference stores the bounds of the primitive and its ID. */ + struct __aligned(32) PrimRef + { + __forceinline PrimRef () {} + +#if defined(__AVX__) + __forceinline PrimRef(const PrimRef& v) { + vfloat8::store((float*)this,vfloat8::load((float*)&v)); + } + __forceinline PrimRef& operator=(const PrimRef& v) { + vfloat8::store((float*)this,vfloat8::load((float*)&v)); return *this; + } +#endif + + __forceinline PrimRef (const BBox3fa& bounds, unsigned int geomID, unsigned int primID) + { + lower = Vec3fx(bounds.lower, geomID); + upper = Vec3fx(bounds.upper, primID); + } + + __forceinline PrimRef (const BBox3fa& bounds, size_t id) + { +#if defined(__64BIT__) + lower = Vec3fx(bounds.lower, (unsigned)(id & 0xFFFFFFFF)); + upper = Vec3fx(bounds.upper, (unsigned)((id >> 32) & 0xFFFFFFFF)); +#else + lower = Vec3fx(bounds.lower, (unsigned)id); + upper = Vec3fx(bounds.upper, (unsigned)0); +#endif + } + + /*! calculates twice the center of the primitive */ + __forceinline const Vec3fa center2() const { + return lower+upper; + } + + /*! return the bounding box of the primitive */ + __forceinline const BBox3fa bounds() const { + return BBox3fa(lower,upper); + } + + /*! size for bin heuristic is 1 */ + __forceinline unsigned size() const { + return 1; + } + + /*! returns bounds and centroid used for binning */ + __forceinline void binBoundsAndCenter(BBox3fa& bounds_o, Vec3fa& center_o) const + { + bounds_o = bounds(); + center_o = embree::center2(bounds_o); + } + + __forceinline unsigned& geomIDref() { // FIXME: remove !!!!!!! + return lower.u; + } + __forceinline unsigned& primIDref() { // FIXME: remove !!!!!!! + return upper.u; + } + + /*! returns the geometry ID */ + __forceinline unsigned geomID() const { + return lower.a; + } + + /*! returns the primitive ID */ + __forceinline unsigned primID() const { + return upper.a; + } + + /*! returns an size_t sized ID */ + __forceinline size_t ID() const { +#if defined(__64BIT__) + return size_t(lower.u) + (size_t(upper.u) << 32); +#else + return size_t(lower.u); +#endif + } + + /*! special function for operator< */ + __forceinline uint64_t ID64() const { + return (((uint64_t)primID()) << 32) + (uint64_t)geomID(); + } + + /*! allows sorting the primrefs by ID */ + friend __forceinline bool operator<(const PrimRef& p0, const PrimRef& p1) { + return p0.ID64() < p1.ID64(); + } + + /*! Outputs primitive reference to a stream. */ + friend __forceinline embree_ostream operator<<(embree_ostream cout, const PrimRef& ref) { + return cout << "{ lower = " << ref.lower << ", upper = " << ref.upper << ", geomID = " << ref.geomID() << ", primID = " << ref.primID() << " }"; + } + + public: + Vec3fx lower; //!< lower bounds and geomID + Vec3fx upper; //!< upper bounds and primID + }; + + /*! fast exchange for PrimRefs */ + __forceinline void xchg(PrimRef& a, PrimRef& b) + { +#if defined(__AVX__) + const vfloat8 aa = vfloat8::load((float*)&a); + const vfloat8 bb = vfloat8::load((float*)&b); + vfloat8::store((float*)&a,bb); + vfloat8::store((float*)&b,aa); +#else + std::swap(a,b); +#endif + } + + /************************************************************************************/ + /************************************************************************************/ + /************************************************************************************/ + /************************************************************************************/ + + struct SubGridBuildData { + unsigned short sx,sy; + unsigned int primID; + + __forceinline SubGridBuildData() {}; + __forceinline SubGridBuildData(const unsigned int sx, const unsigned int sy, const unsigned int primID) : sx(sx), sy(sy), primID(primID) {}; + + __forceinline size_t x() const { return (size_t)sx & 0x7fff; } + __forceinline size_t y() const { return (size_t)sy & 0x7fff; } + + }; +} |