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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.
517 lines
21 KiB
C++
517 lines
21 KiB
C++
// Copyright 2009-2021 Intel Corporation
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// SPDX-License-Identifier: Apache-2.0
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#pragma once
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#include "../common/ray.h"
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#include "../common/scene_grid_mesh.h"
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#include "../bvh/bvh.h"
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namespace embree
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{
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/* Stores M quads from an indexed face set */
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struct SubGrid
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{
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/* Virtual interface to query information about the quad type */
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struct Type : public PrimitiveType
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{
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const char* name() const;
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size_t sizeActive(const char* This) const;
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size_t sizeTotal(const char* This) const;
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size_t getBytes(const char* This) const;
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};
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static Type type;
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public:
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/* primitive supports multiple time segments */
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static const bool singleTimeSegment = false;
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/* Returns maximum number of stored quads */
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static __forceinline size_t max_size() { return 1; }
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/* Returns required number of primitive blocks for N primitives */
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static __forceinline size_t blocks(size_t N) { return (N+max_size()-1)/max_size(); }
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public:
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/* Default constructor */
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__forceinline SubGrid() { }
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/* Construction from vertices and IDs */
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__forceinline SubGrid(const unsigned int x,
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const unsigned int y,
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const unsigned int geomID,
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const unsigned int primID)
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: _x(x), _y(y), _geomID(geomID), _primID(primID)
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{
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}
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__forceinline bool invalid3x3X() const { return (unsigned int)_x & (1<<15); }
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__forceinline bool invalid3x3Y() const { return (unsigned int)_y & (1<<15); }
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/* Gather the quads */
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__forceinline void gather(Vec3vf4& p0,
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Vec3vf4& p1,
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Vec3vf4& p2,
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Vec3vf4& p3,
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const GridMesh* const mesh,
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const GridMesh::Grid &g) const
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{
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/* first quad always valid */
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const size_t vtxID00 = g.startVtxID + x() + y() * g.lineVtxOffset;
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const size_t vtxID01 = vtxID00 + 1;
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const vfloat4 vtx00 = vfloat4::loadu(mesh->vertexPtr(vtxID00));
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const vfloat4 vtx01 = vfloat4::loadu(mesh->vertexPtr(vtxID01));
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const size_t vtxID10 = vtxID00 + g.lineVtxOffset;
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const size_t vtxID11 = vtxID01 + g.lineVtxOffset;
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const vfloat4 vtx10 = vfloat4::loadu(mesh->vertexPtr(vtxID10));
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const vfloat4 vtx11 = vfloat4::loadu(mesh->vertexPtr(vtxID11));
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/* deltaX => vtx02, vtx12 */
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const size_t deltaX = invalid3x3X() ? 0 : 1;
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const size_t vtxID02 = vtxID01 + deltaX;
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const vfloat4 vtx02 = vfloat4::loadu(mesh->vertexPtr(vtxID02));
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const size_t vtxID12 = vtxID11 + deltaX;
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const vfloat4 vtx12 = vfloat4::loadu(mesh->vertexPtr(vtxID12));
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/* deltaY => vtx20, vtx21 */
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const size_t deltaY = invalid3x3Y() ? 0 : g.lineVtxOffset;
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const size_t vtxID20 = vtxID10 + deltaY;
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const size_t vtxID21 = vtxID11 + deltaY;
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const vfloat4 vtx20 = vfloat4::loadu(mesh->vertexPtr(vtxID20));
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const vfloat4 vtx21 = vfloat4::loadu(mesh->vertexPtr(vtxID21));
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/* deltaX/deltaY => vtx22 */
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const size_t vtxID22 = vtxID11 + deltaX + deltaY;
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const vfloat4 vtx22 = vfloat4::loadu(mesh->vertexPtr(vtxID22));
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transpose(vtx00,vtx01,vtx11,vtx10,p0.x,p0.y,p0.z);
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transpose(vtx01,vtx02,vtx12,vtx11,p1.x,p1.y,p1.z);
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transpose(vtx11,vtx12,vtx22,vtx21,p2.x,p2.y,p2.z);
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transpose(vtx10,vtx11,vtx21,vtx20,p3.x,p3.y,p3.z);
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}
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template<typename T>
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__forceinline vfloat4 getVertexMB(const GridMesh* const mesh, const size_t offset, const size_t itime, const float ftime) const
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{
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const T v0 = T::loadu(mesh->vertexPtr(offset,itime+0));
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const T v1 = T::loadu(mesh->vertexPtr(offset,itime+1));
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return lerp(v0,v1,ftime);
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}
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/* Gather the quads */
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__forceinline void gatherMB(Vec3vf4& p0,
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Vec3vf4& p1,
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Vec3vf4& p2,
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Vec3vf4& p3,
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const GridMesh* const mesh,
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const GridMesh::Grid &g,
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const size_t itime,
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const float ftime) const
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{
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/* first quad always valid */
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const size_t vtxID00 = g.startVtxID + x() + y() * g.lineVtxOffset;
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const size_t vtxID01 = vtxID00 + 1;
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const vfloat4 vtx00 = getVertexMB<vfloat4>(mesh,vtxID00,itime,ftime);
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const vfloat4 vtx01 = getVertexMB<vfloat4>(mesh,vtxID01,itime,ftime);
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const size_t vtxID10 = vtxID00 + g.lineVtxOffset;
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const size_t vtxID11 = vtxID01 + g.lineVtxOffset;
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const vfloat4 vtx10 = getVertexMB<vfloat4>(mesh,vtxID10,itime,ftime);
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const vfloat4 vtx11 = getVertexMB<vfloat4>(mesh,vtxID11,itime,ftime);
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/* deltaX => vtx02, vtx12 */
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const size_t deltaX = invalid3x3X() ? 0 : 1;
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const size_t vtxID02 = vtxID01 + deltaX;
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const vfloat4 vtx02 = getVertexMB<vfloat4>(mesh,vtxID02,itime,ftime);
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const size_t vtxID12 = vtxID11 + deltaX;
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const vfloat4 vtx12 = getVertexMB<vfloat4>(mesh,vtxID12,itime,ftime);
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/* deltaY => vtx20, vtx21 */
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const size_t deltaY = invalid3x3Y() ? 0 : g.lineVtxOffset;
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const size_t vtxID20 = vtxID10 + deltaY;
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const size_t vtxID21 = vtxID11 + deltaY;
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const vfloat4 vtx20 = getVertexMB<vfloat4>(mesh,vtxID20,itime,ftime);
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const vfloat4 vtx21 = getVertexMB<vfloat4>(mesh,vtxID21,itime,ftime);
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/* deltaX/deltaY => vtx22 */
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const size_t vtxID22 = vtxID11 + deltaX + deltaY;
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const vfloat4 vtx22 = getVertexMB<vfloat4>(mesh,vtxID22,itime,ftime);
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transpose(vtx00,vtx01,vtx11,vtx10,p0.x,p0.y,p0.z);
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transpose(vtx01,vtx02,vtx12,vtx11,p1.x,p1.y,p1.z);
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transpose(vtx11,vtx12,vtx22,vtx21,p2.x,p2.y,p2.z);
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transpose(vtx10,vtx11,vtx21,vtx20,p3.x,p3.y,p3.z);
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}
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/* Gather the quads */
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__forceinline void gather(Vec3vf4& p0,
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Vec3vf4& p1,
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Vec3vf4& p2,
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Vec3vf4& p3,
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const Scene *const scene) const
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{
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const GridMesh* const mesh = scene->get<GridMesh>(geomID());
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const GridMesh::Grid &g = mesh->grid(primID());
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gather(p0,p1,p2,p3,mesh,g);
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}
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/* Gather the quads in the motion blur case */
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__forceinline void gatherMB(Vec3vf4& p0,
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Vec3vf4& p1,
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Vec3vf4& p2,
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Vec3vf4& p3,
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const Scene *const scene,
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const size_t itime,
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const float ftime) const
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{
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const GridMesh* const mesh = scene->get<GridMesh>(geomID());
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const GridMesh::Grid &g = mesh->grid(primID());
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gatherMB(p0,p1,p2,p3,mesh,g,itime,ftime);
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}
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/* Gather the quads */
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__forceinline void gather(Vec3fa vtx[16], const Scene *const scene) const
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{
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const GridMesh* mesh = scene->get<GridMesh>(geomID());
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const GridMesh::Grid &g = mesh->grid(primID());
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/* first quad always valid */
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const size_t vtxID00 = g.startVtxID + x() + y() * g.lineVtxOffset;
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const size_t vtxID01 = vtxID00 + 1;
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const Vec3fa vtx00 = Vec3fa::loadu(mesh->vertexPtr(vtxID00));
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const Vec3fa vtx01 = Vec3fa::loadu(mesh->vertexPtr(vtxID01));
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const size_t vtxID10 = vtxID00 + g.lineVtxOffset;
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const size_t vtxID11 = vtxID01 + g.lineVtxOffset;
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const Vec3fa vtx10 = Vec3fa::loadu(mesh->vertexPtr(vtxID10));
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const Vec3fa vtx11 = Vec3fa::loadu(mesh->vertexPtr(vtxID11));
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/* deltaX => vtx02, vtx12 */
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const size_t deltaX = invalid3x3X() ? 0 : 1;
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const size_t vtxID02 = vtxID01 + deltaX;
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const Vec3fa vtx02 = Vec3fa::loadu(mesh->vertexPtr(vtxID02));
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const size_t vtxID12 = vtxID11 + deltaX;
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const Vec3fa vtx12 = Vec3fa::loadu(mesh->vertexPtr(vtxID12));
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/* deltaY => vtx20, vtx21 */
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const size_t deltaY = invalid3x3Y() ? 0 : g.lineVtxOffset;
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const size_t vtxID20 = vtxID10 + deltaY;
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const size_t vtxID21 = vtxID11 + deltaY;
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const Vec3fa vtx20 = Vec3fa::loadu(mesh->vertexPtr(vtxID20));
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const Vec3fa vtx21 = Vec3fa::loadu(mesh->vertexPtr(vtxID21));
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/* deltaX/deltaY => vtx22 */
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const size_t vtxID22 = vtxID11 + deltaX + deltaY;
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const Vec3fa vtx22 = Vec3fa::loadu(mesh->vertexPtr(vtxID22));
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vtx[ 0] = vtx00; vtx[ 1] = vtx01; vtx[ 2] = vtx11; vtx[ 3] = vtx10;
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vtx[ 4] = vtx01; vtx[ 5] = vtx02; vtx[ 6] = vtx12; vtx[ 7] = vtx11;
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vtx[ 8] = vtx10; vtx[ 9] = vtx11; vtx[10] = vtx21; vtx[11] = vtx20;
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vtx[12] = vtx11; vtx[13] = vtx12; vtx[14] = vtx22; vtx[15] = vtx21;
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}
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/* Gather the quads */
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__forceinline void gatherMB(vfloat4 vtx[16], const Scene *const scene, const size_t itime, const float ftime) const
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{
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const GridMesh* mesh = scene->get<GridMesh>(geomID());
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const GridMesh::Grid &g = mesh->grid(primID());
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/* first quad always valid */
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const size_t vtxID00 = g.startVtxID + x() + y() * g.lineVtxOffset;
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const size_t vtxID01 = vtxID00 + 1;
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const vfloat4 vtx00 = getVertexMB<vfloat4>(mesh,vtxID00,itime,ftime);
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const vfloat4 vtx01 = getVertexMB<vfloat4>(mesh,vtxID01,itime,ftime);
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const size_t vtxID10 = vtxID00 + g.lineVtxOffset;
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const size_t vtxID11 = vtxID01 + g.lineVtxOffset;
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const vfloat4 vtx10 = getVertexMB<vfloat4>(mesh,vtxID10,itime,ftime);
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const vfloat4 vtx11 = getVertexMB<vfloat4>(mesh,vtxID11,itime,ftime);
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/* deltaX => vtx02, vtx12 */
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const size_t deltaX = invalid3x3X() ? 0 : 1;
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const size_t vtxID02 = vtxID01 + deltaX;
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const vfloat4 vtx02 = getVertexMB<vfloat4>(mesh,vtxID02,itime,ftime);
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const size_t vtxID12 = vtxID11 + deltaX;
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const vfloat4 vtx12 = getVertexMB<vfloat4>(mesh,vtxID12,itime,ftime);
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/* deltaY => vtx20, vtx21 */
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const size_t deltaY = invalid3x3Y() ? 0 : g.lineVtxOffset;
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const size_t vtxID20 = vtxID10 + deltaY;
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const size_t vtxID21 = vtxID11 + deltaY;
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const vfloat4 vtx20 = getVertexMB<vfloat4>(mesh,vtxID20,itime,ftime);
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const vfloat4 vtx21 = getVertexMB<vfloat4>(mesh,vtxID21,itime,ftime);
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/* deltaX/deltaY => vtx22 */
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const size_t vtxID22 = vtxID11 + deltaX + deltaY;
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const vfloat4 vtx22 = getVertexMB<vfloat4>(mesh,vtxID22,itime,ftime);
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vtx[ 0] = vtx00; vtx[ 1] = vtx01; vtx[ 2] = vtx11; vtx[ 3] = vtx10;
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vtx[ 4] = vtx01; vtx[ 5] = vtx02; vtx[ 6] = vtx12; vtx[ 7] = vtx11;
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vtx[ 8] = vtx10; vtx[ 9] = vtx11; vtx[10] = vtx21; vtx[11] = vtx20;
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vtx[12] = vtx11; vtx[13] = vtx12; vtx[14] = vtx22; vtx[15] = vtx21;
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}
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/* Calculate the bounds of the subgrid */
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__forceinline const BBox3fa bounds(const Scene *const scene, const size_t itime=0) const
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{
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BBox3fa bounds = empty;
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FATAL("not implemented yet");
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return bounds;
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}
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/* Calculate the linear bounds of the primitive */
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__forceinline LBBox3fa linearBounds(const Scene* const scene, const size_t itime)
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{
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return LBBox3fa(bounds(scene,itime+0),bounds(scene,itime+1));
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}
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__forceinline LBBox3fa linearBounds(const Scene *const scene, size_t itime, size_t numTimeSteps)
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{
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LBBox3fa allBounds = empty;
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FATAL("not implemented yet");
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return allBounds;
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}
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__forceinline LBBox3fa linearBounds(const Scene *const scene, const BBox1f time_range)
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{
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LBBox3fa allBounds = empty;
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FATAL("not implemented yet");
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return allBounds;
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}
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friend embree_ostream operator<<(embree_ostream cout, const SubGrid& sg) {
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return cout << "SubGrid " << " ( x " << sg.x() << ", y = " << sg.y() << ", geomID = " << sg.geomID() << ", primID = " << sg.primID() << " )";
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}
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__forceinline unsigned int geomID() const { return _geomID; }
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__forceinline unsigned int primID() const { return _primID; }
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__forceinline unsigned int x() const { return (unsigned int)_x & 0x7fff; }
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__forceinline unsigned int y() const { return (unsigned int)_y & 0x7fff; }
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private:
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unsigned short _x;
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unsigned short _y;
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unsigned int _geomID; // geometry ID of mesh
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unsigned int _primID; // primitive ID of primitive inside mesh
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};
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struct SubGridID {
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unsigned short x;
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unsigned short y;
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unsigned int primID;
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__forceinline SubGridID() {}
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__forceinline SubGridID(const unsigned int x, const unsigned int y, const unsigned int primID) :
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x(x), y(y), primID(primID) {}
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};
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/* QuantizedBaseNode as large subgrid leaf */
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template<int N>
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struct SubGridQBVHN
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{
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/* Virtual interface to query information about the quad type */
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struct Type : public PrimitiveType
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{
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const char* name() const;
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size_t sizeActive(const char* This) const;
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size_t sizeTotal(const char* This) const;
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size_t getBytes(const char* This) const;
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};
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static Type type;
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public:
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__forceinline size_t size() const
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{
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for (size_t i=0;i<N;i++)
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if (primID(i) == -1) return i;
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return N;
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}
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__forceinline void clear() {
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for (size_t i=0;i<N;i++)
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subgridIDs[i] = SubGridID(0,0,(unsigned int)-1);
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qnode.clear();
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}
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/* Default constructor */
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__forceinline SubGridQBVHN() { }
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/* Construction from vertices and IDs */
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__forceinline SubGridQBVHN(const unsigned int x[N],
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const unsigned int y[N],
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const unsigned int primID[N],
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const BBox3fa * const subGridBounds,
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const unsigned int geomID,
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const unsigned int items)
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{
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clear();
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_geomID = geomID;
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__aligned(64) typename BVHN<N>::AABBNode node;
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node.clear();
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for (size_t i=0;i<items;i++)
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{
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subgridIDs[i] = SubGridID(x[i],y[i],primID[i]);
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node.setBounds(i,subGridBounds[i]);
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}
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qnode.init_dim(node);
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}
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__forceinline unsigned int geomID() const { return _geomID; }
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__forceinline unsigned int primID(const size_t i) const { assert(i < N); return subgridIDs[i].primID; }
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__forceinline unsigned int x(const size_t i) const { assert(i < N); return subgridIDs[i].x; }
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__forceinline unsigned int y(const size_t i) const { assert(i < N); return subgridIDs[i].y; }
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__forceinline SubGrid subgrid(const size_t i) const {
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assert(i < N);
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assert(primID(i) != -1);
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return SubGrid(x(i),y(i),geomID(),primID(i));
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}
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public:
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SubGridID subgridIDs[N];
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typename BVHN<N>::QuantizedBaseNode qnode;
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unsigned int _geomID; // geometry ID of mesh
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friend embree_ostream operator<<(embree_ostream cout, const SubGridQBVHN& sg) {
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cout << "SubGridQBVHN " << embree_endl;
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for (size_t i=0;i<N;i++)
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cout << i << " ( x = " << sg.subgridIDs[i].x << ", y = " << sg.subgridIDs[i].y << ", primID = " << sg.subgridIDs[i].primID << " )" << embree_endl;
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cout << "geomID " << sg._geomID << embree_endl;
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cout << "lowerX " << sg.qnode.dequantizeLowerX() << embree_endl;
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cout << "upperX " << sg.qnode.dequantizeUpperX() << embree_endl;
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cout << "lowerY " << sg.qnode.dequantizeLowerY() << embree_endl;
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cout << "upperY " << sg.qnode.dequantizeUpperY() << embree_endl;
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cout << "lowerZ " << sg.qnode.dequantizeLowerZ() << embree_endl;
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cout << "upperZ " << sg.qnode.dequantizeUpperZ() << embree_endl;
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return cout;
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}
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};
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template<int N>
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typename SubGridQBVHN<N>::Type SubGridQBVHN<N>::type;
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typedef SubGridQBVHN<4> SubGridQBVH4;
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typedef SubGridQBVHN<8> SubGridQBVH8;
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/* QuantizedBaseNode as large subgrid leaf */
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template<int N>
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struct SubGridMBQBVHN
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{
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/* Virtual interface to query information about the quad type */
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struct Type : public PrimitiveType
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{
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const char* name() const;
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size_t sizeActive(const char* This) const;
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size_t sizeTotal(const char* This) const;
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size_t getBytes(const char* This) const;
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};
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static Type type;
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public:
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__forceinline size_t size() const
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{
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for (size_t i=0;i<N;i++)
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if (primID(i) == -1) return i;
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return N;
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}
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__forceinline void clear() {
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for (size_t i=0;i<N;i++)
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subgridIDs[i] = SubGridID(0,0,(unsigned int)-1);
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qnode.clear();
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}
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/* Default constructor */
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__forceinline SubGridMBQBVHN() { }
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/* Construction from vertices and IDs */
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__forceinline SubGridMBQBVHN(const unsigned int x[N],
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const unsigned int y[N],
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const unsigned int primID[N],
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const BBox3fa * const subGridBounds0,
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const BBox3fa * const subGridBounds1,
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const unsigned int geomID,
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const float toffset,
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const float tscale,
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const unsigned int items)
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{
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clear();
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_geomID = geomID;
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time_offset = toffset;
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time_scale = tscale;
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__aligned(64) typename BVHN<N>::AABBNode node0,node1;
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node0.clear();
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node1.clear();
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for (size_t i=0;i<items;i++)
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{
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subgridIDs[i] = SubGridID(x[i],y[i],primID[i]);
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node0.setBounds(i,subGridBounds0[i]);
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node1.setBounds(i,subGridBounds1[i]);
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}
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qnode.node0.init_dim(node0);
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qnode.node1.init_dim(node1);
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}
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__forceinline unsigned int geomID() const { return _geomID; }
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__forceinline unsigned int primID(const size_t i) const { assert(i < N); return subgridIDs[i].primID; }
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__forceinline unsigned int x(const size_t i) const { assert(i < N); return subgridIDs[i].x; }
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__forceinline unsigned int y(const size_t i) const { assert(i < N); return subgridIDs[i].y; }
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__forceinline SubGrid subgrid(const size_t i) const {
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assert(i < N);
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assert(primID(i) != -1);
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return SubGrid(x(i),y(i),geomID(),primID(i));
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}
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__forceinline float adjustTime(const float t) const { return time_scale * (t-time_offset); }
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template<int K>
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__forceinline vfloat<K> adjustTime(const vfloat<K> &t) const { return time_scale * (t-time_offset); }
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public:
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SubGridID subgridIDs[N];
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typename BVHN<N>::QuantizedBaseNodeMB qnode;
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float time_offset;
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float time_scale;
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unsigned int _geomID; // geometry ID of mesh
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friend embree_ostream operator<<(embree_ostream cout, const SubGridMBQBVHN& sg) {
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cout << "SubGridMBQBVHN " << embree_endl;
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for (size_t i=0;i<N;i++)
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cout << i << " ( x = " << sg.subgridIDs[i].x << ", y = " << sg.subgridIDs[i].y << ", primID = " << sg.subgridIDs[i].primID << " )" << embree_endl;
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cout << "geomID " << sg._geomID << embree_endl;
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cout << "time_offset " << sg.time_offset << embree_endl;
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cout << "time_scale " << sg.time_scale << embree_endl;
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cout << "lowerX " << sg.qnode.node0.dequantizeLowerX() << embree_endl;
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cout << "upperX " << sg.qnode.node0.dequantizeUpperX() << embree_endl;
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cout << "lowerY " << sg.qnode.node0.dequantizeLowerY() << embree_endl;
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cout << "upperY " << sg.qnode.node0.dequantizeUpperY() << embree_endl;
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cout << "lowerZ " << sg.qnode.node0.dequantizeLowerZ() << embree_endl;
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cout << "upperZ " << sg.qnode.node0.dequantizeUpperZ() << embree_endl;
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cout << "lowerX " << sg.qnode.node1.dequantizeLowerX() << embree_endl;
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cout << "upperX " << sg.qnode.node1.dequantizeUpperX() << embree_endl;
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cout << "lowerY " << sg.qnode.node1.dequantizeLowerY() << embree_endl;
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cout << "upperY " << sg.qnode.node1.dequantizeUpperY() << embree_endl;
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cout << "lowerZ " << sg.qnode.node1.dequantizeLowerZ() << embree_endl;
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cout << "upperZ " << sg.qnode.node1.dequantizeUpperZ() << embree_endl;
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return cout;
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}
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};
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}
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