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Upgrade clipper & improve multi-thread performance (#7177)

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* Clipper: Verify range of int32 coordinates on input.

Cherry-picked from prusa3d/PrusaSlicer@fa7debf49d

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* ClipperLib: Optimized PointInPolygon() to calculate cross products
 with int64s instead of doubles.

Cherry-picked from prusa3d/PrusaSlicer@9dca8403fe

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* Reworked the ClipperLib / Polygon types to use
the tbb::scallable_allocator to better scale on multiple threads.

Cherry-picked from prusa3d/PrusaSlicer@9cde96993e

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* use tbb::scallable_allocator for Polygons and ExPolygon::holes
to better scale on multiple threads

Cherry-picked from prusa3d/PrusaSlicer@b67ad6434d

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* Fixed compilation on GCC and CLang

Cherry-picked from prusa3d/PrusaSlicer@b3b44681a9

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* Remove clipper2 which is not used

* Removed shiny profiler from clipperlib

Cherry-picked from prusa3d/PrusaSlicer@7e77048593

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* ClipperLib: Further optimization of memory allocation using scalable_allocator.
ClipperLib: SimplifyPolygon() - changed default winding number to positive,
      added strictly_simple parameter.
ClipperUtlis simplify_polygons() - removed "remove_collinear" parameter

Cherry-picked from prusa3d/PrusaSlicer@a7e17df25f

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* ClipperLib: emplace_back() instead of push_back().

Cherry-picked from prusa3d/PrusaSlicer@2e150795b1

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* Fixed issue in a 32bit clipper, where IntersectPoint() checked for
the Y coordinate of the calculated intersection point for validity,
but the Y coordinate was already rounded to 32bits, thus an overflow
may have in rare cases masked invalidity of the result.

Cherry-picked from prusa3d/PrusaSlicer@b39c33414f

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* Fixed Vojtech's out of boundary assert in Clipper library.

Cherry-picked from prusa3d/PrusaSlicer@0a202dcff3

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>

* Update clipper to 6.4.2.

Cherry-picked from prusa3d/PrusaSlicer@b8b3cccb40

Co-authored-by: Lukáš Hejl <hejl.lukas@gmail.com>

* Try fix cmake opencv

---------

Co-authored-by: Vojtech Bubnik <bubnikv@gmail.com>
Co-authored-by: Lukáš Hejl <hejl.lukas@gmail.com>
This commit is contained in:
Noisyfox
2025-06-18 17:50:44 +08:00
committed by GitHub
parent 95b4334bf7
commit fe4a72ec94
46 changed files with 649 additions and 8481 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/libslic3r/SLA/ConcaveHull.cpp
View File

@@ -43,7 +43,8 @@ Point ConcaveHull::centroid(const Points &pp)
Points ConcaveHull::calculate_centroids() const
{
// We get the centroids of all the islands in the 2D slice
Points centroids = reserve_vector<Point>(m_polys.size());
Points centroids;
centroids.reserve(m_polys.size());
std::transform(m_polys.begin(), m_polys.end(),
std::back_inserter(centroids),
[](const Polygon &poly) { return centroid(poly); });

4
src/libslic3r/SLA/Pad.hpp
View File

@@ -6,6 +6,8 @@
#include <cmath>
#include <string>
#include <libslic3r/Point.hpp>
struct indexed_triangle_set;
namespace Slic3r {
@@ -13,7 +15,7 @@ namespace Slic3r {
class ExPolygon;
class Polygon;
using ExPolygons = std::vector<ExPolygon>;
using Polygons = std::vector<Polygon>;
using Polygons = std::vector<Polygon, PointsAllocator<Polygon>>;
namespace sla {

8
src/libslic3r/SLA/SupportTree.hpp
View File

@@ -5,6 +5,9 @@
#include <memory>
#include <Eigen/Geometry>
#include <libslic3r/Polygon.hpp>
#include <libslic3r/ExPolygon.hpp>
#include <libslic3r/SLA/Pad.hpp>
#include <libslic3r/SLA/IndexedMesh.hpp>
#include <libslic3r/SLA/SupportPoint.hpp>
@@ -16,11 +19,6 @@ class TriangleMesh;
class Model;
class ModelInstance;
class ModelObject;
class Polygon;
class ExPolygon;
using Polygons = std::vector<Polygon>;
using ExPolygons = std::vector<ExPolygon>;
namespace sla {