godot/thirdparty/embree/kernels/common/scene.h

391 lines
11 KiB
C++

// Copyright 2009-2020 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "default.h"
#include "device.h"
#include "builder.h"
#include "../../common/algorithms/parallel_any_of.h"
#include "scene_triangle_mesh.h"
#include "scene_quad_mesh.h"
#include "scene_user_geometry.h"
#include "scene_instance.h"
#include "scene_curves.h"
#include "scene_line_segments.h"
#include "scene_subdiv_mesh.h"
#include "scene_grid_mesh.h"
#include "scene_points.h"
#include "../subdiv/tessellation_cache.h"
#include "acceln.h"
#include "geometry.h"
namespace embree
{
/*! Base class all scenes are derived from */
class Scene : public AccelN
{
ALIGNED_CLASS_(std::alignment_of<Scene>::value);
public:
template<typename Ty, bool mblur = false>
class Iterator
{
public:
Iterator () {}
Iterator (Scene* scene, bool all = false)
: scene(scene), all(all) {}
__forceinline Ty* at(const size_t i)
{
Geometry* geom = scene->geometries[i].ptr;
if (geom == nullptr) return nullptr;
if (!all && !geom->isEnabled()) return nullptr;
const size_t mask = geom->getTypeMask() & Ty::geom_type;
if (!(mask)) return nullptr;
if ((geom->numTimeSteps != 1) != mblur) return nullptr;
return (Ty*) geom;
}
__forceinline Ty* operator[] (const size_t i) {
return at(i);
}
__forceinline size_t size() const {
return scene->size();
}
__forceinline size_t numPrimitives() const {
return scene->getNumPrimitives(Ty::geom_type,mblur);
}
__forceinline size_t maxPrimitivesPerGeometry()
{
size_t ret = 0;
for (size_t i=0; i<scene->size(); i++) {
Ty* mesh = at(i);
if (mesh == nullptr) continue;
ret = max(ret,mesh->size());
}
return ret;
}
__forceinline unsigned int maxGeomID()
{
unsigned int ret = 0;
for (size_t i=0; i<scene->size(); i++) {
Ty* mesh = at(i);
if (mesh == nullptr) continue;
ret = max(ret,(unsigned int)i);
}
return ret;
}
__forceinline unsigned maxTimeStepsPerGeometry()
{
unsigned ret = 0;
for (size_t i=0; i<scene->size(); i++) {
Ty* mesh = at(i);
if (mesh == nullptr) continue;
ret = max(ret,mesh->numTimeSteps);
}
return ret;
}
private:
Scene* scene;
bool all;
};
class Iterator2
{
public:
Iterator2 () {}
Iterator2 (Scene* scene, Geometry::GTypeMask typemask, bool mblur)
: scene(scene), typemask(typemask), mblur(mblur) {}
__forceinline Geometry* at(const size_t i)
{
Geometry* geom = scene->geometries[i].ptr;
if (geom == nullptr) return nullptr;
if (!geom->isEnabled()) return nullptr;
if (!(geom->getTypeMask() & typemask)) return nullptr;
if ((geom->numTimeSteps != 1) != mblur) return nullptr;
return geom;
}
__forceinline Geometry* operator[] (const size_t i) {
return at(i);
}
__forceinline size_t size() const {
return scene->size();
}
private:
Scene* scene;
Geometry::GTypeMask typemask;
bool mblur;
};
public:
/*! Scene construction */
Scene (Device* device);
/*! Scene destruction */
~Scene () noexcept;
private:
/*! class is non-copyable */
Scene (const Scene& other) DELETED; // do not implement
Scene& operator= (const Scene& other) DELETED; // do not implement
public:
void createTriangleAccel();
void createTriangleMBAccel();
void createQuadAccel();
void createQuadMBAccel();
void createHairAccel();
void createHairMBAccel();
void createSubdivAccel();
void createSubdivMBAccel();
void createUserGeometryAccel();
void createUserGeometryMBAccel();
void createInstanceAccel();
void createInstanceMBAccel();
void createInstanceExpensiveAccel();
void createInstanceExpensiveMBAccel();
void createGridAccel();
void createGridMBAccel();
/*! prints statistics about the scene */
void printStatistics();
/*! clears the scene */
void clear();
/*! detaches some geometry */
void detachGeometry(size_t geomID);
void setBuildQuality(RTCBuildQuality quality_flags);
RTCBuildQuality getBuildQuality() const;
void setSceneFlags(RTCSceneFlags scene_flags);
RTCSceneFlags getSceneFlags() const;
void commit (bool join);
void commit_task ();
void build () {}
void updateInterface();
/* return number of geometries */
__forceinline size_t size() const { return geometries.size(); }
/* bind geometry to the scene */
unsigned int bind (unsigned geomID, Ref<Geometry> geometry);
/* determines if scene is modified */
__forceinline bool isModified() const { return modified; }
/* sets modified flag */
__forceinline void setModified(bool f = true) {
modified = f;
}
__forceinline bool isGeometryModified(size_t geomID)
{
Ref<Geometry>& g = geometries[geomID];
if (!g) return false;
return g->getModCounter() > geometryModCounters_[geomID];
}
protected:
__forceinline void checkIfModifiedAndSet ()
{
if (isModified ()) return;
auto geometryIsModified = [this](size_t geomID)->bool {
return isGeometryModified(geomID);
};
if (parallel_any_of (size_t(0), geometries.size (), geometryIsModified)) {
setModified ();
}
}
public:
/* get mesh by ID */
__forceinline Geometry* get(size_t i) { assert(i < geometries.size()); return geometries[i].ptr; }
__forceinline const Geometry* get(size_t i) const { assert(i < geometries.size()); return geometries[i].ptr; }
template<typename Mesh>
__forceinline Mesh* get(size_t i) {
assert(i < geometries.size());
assert(geometries[i]->getTypeMask() & Mesh::geom_type);
return (Mesh*)geometries[i].ptr;
}
template<typename Mesh>
__forceinline const Mesh* get(size_t i) const {
assert(i < geometries.size());
assert(geometries[i]->getTypeMask() & Mesh::geom_type);
return (Mesh*)geometries[i].ptr;
}
template<typename Mesh>
__forceinline Mesh* getSafe(size_t i) {
assert(i < geometries.size());
if (geometries[i] == null) return nullptr;
if (!(geometries[i]->getTypeMask() & Mesh::geom_type)) return nullptr;
else return (Mesh*) geometries[i].ptr;
}
__forceinline Ref<Geometry> get_locked(size_t i) {
Lock<SpinLock> lock(geometriesMutex);
assert(i < geometries.size());
return geometries[i];
}
/* flag decoding */
__forceinline bool isFastAccel() const { return !isCompactAccel() && !isRobustAccel(); }
__forceinline bool isCompactAccel() const { return scene_flags & RTC_SCENE_FLAG_COMPACT; }
__forceinline bool isRobustAccel() const { return scene_flags & RTC_SCENE_FLAG_ROBUST; }
__forceinline bool isStaticAccel() const { return !(scene_flags & RTC_SCENE_FLAG_DYNAMIC); }
__forceinline bool isDynamicAccel() const { return scene_flags & RTC_SCENE_FLAG_DYNAMIC; }
__forceinline bool hasContextFilterFunction() const {
return scene_flags & RTC_SCENE_FLAG_CONTEXT_FILTER_FUNCTION;
}
__forceinline bool hasGeometryFilterFunction() {
return world.numFilterFunctions != 0;
}
__forceinline bool hasFilterFunction() {
return hasContextFilterFunction() || hasGeometryFilterFunction();
}
/* test if scene got already build */
__forceinline bool isBuild() const { return is_build; }
public:
IDPool<unsigned,0xFFFFFFFE> id_pool;
vector<Ref<Geometry>> geometries; //!< list of all user geometries
vector<unsigned int> geometryModCounters_;
vector<float*> vertices;
public:
Device* device;
/* these are to detect if we need to recreate the acceleration structures */
bool flags_modified;
unsigned int enabled_geometry_types;
RTCSceneFlags scene_flags;
RTCBuildQuality quality_flags;
MutexSys buildMutex;
SpinLock geometriesMutex;
bool is_build;
private:
bool modified; //!< true if scene got modified
public:
/*! global lock step task scheduler */
#if defined(TASKING_INTERNAL)
MutexSys schedulerMutex;
Ref<TaskScheduler> scheduler;
#elif defined(TASKING_TBB) && TASKING_TBB_USE_TASK_ISOLATION
tbb::isolated_task_group group;
#elif defined(TASKING_TBB)
tbb::task_group group;
#elif defined(TASKING_PPL)
concurrency::task_group group;
#endif
public:
struct BuildProgressMonitorInterface : public BuildProgressMonitor {
BuildProgressMonitorInterface(Scene* scene)
: scene(scene) {}
void operator() (size_t dn) const { scene->progressMonitor(double(dn)); }
private:
Scene* scene;
};
BuildProgressMonitorInterface progressInterface;
RTCProgressMonitorFunction progress_monitor_function;
void* progress_monitor_ptr;
std::atomic<size_t> progress_monitor_counter;
void progressMonitor(double nprims);
void setProgressMonitorFunction(RTCProgressMonitorFunction func, void* ptr);
private:
GeometryCounts world; //!< counts for geometry
public:
__forceinline size_t numPrimitives() const {
return world.size();
}
__forceinline size_t getNumPrimitives(Geometry::GTypeMask mask, bool mblur) const
{
size_t count = 0;
if (mask & Geometry::MTY_TRIANGLE_MESH)
count += mblur ? world.numMBTriangles : world.numTriangles;
if (mask & Geometry::MTY_QUAD_MESH)
count += mblur ? world.numMBQuads : world.numQuads;
if (mask & Geometry::MTY_CURVE2)
count += mblur ? world.numMBLineSegments : world.numLineSegments;
if (mask & Geometry::MTY_CURVE4)
count += mblur ? world.numMBBezierCurves : world.numBezierCurves;
if (mask & Geometry::MTY_POINTS)
count += mblur ? world.numMBPoints : world.numPoints;
if (mask & Geometry::MTY_SUBDIV_MESH)
count += mblur ? world.numMBSubdivPatches : world.numSubdivPatches;
if (mask & Geometry::MTY_USER_GEOMETRY)
count += mblur ? world.numMBUserGeometries : world.numUserGeometries;
if (mask & Geometry::MTY_INSTANCE_CHEAP)
count += mblur ? world.numMBInstancesCheap : world.numInstancesCheap;
if (mask & Geometry::MTY_INSTANCE_EXPENSIVE)
count += mblur ? world.numMBInstancesExpensive : world.numInstancesExpensive;
if (mask & Geometry::MTY_GRID_MESH)
count += mblur ? world.numMBGrids : world.numGrids;
return count;
}
template<typename Mesh, bool mblur>
__forceinline unsigned getNumTimeSteps()
{
if (!mblur)
return 1;
Scene::Iterator<Mesh,mblur> iter(this);
return iter.maxTimeStepsPerGeometry();
}
template<typename Mesh, bool mblur>
__forceinline unsigned int getMaxGeomID()
{
Scene::Iterator<Mesh,mblur> iter(this);
return iter.maxGeomID();
}
};
}