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@@ -1,317 +0,0 @@
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#include "SLAImport.hpp"
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#include <sstream>
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#include "libslic3r/SlicesToTriangleMesh.hpp"
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#include "libslic3r/MarchingSquares.hpp"
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#include "libslic3r/ClipperUtils.hpp"
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#include "libslic3r/MTUtils.hpp"
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#include "libslic3r/PrintConfig.hpp"
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#include "libslic3r/SLA/RasterBase.hpp"
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#include "libslic3r/miniz_extension.hpp"
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#include "libslic3r/PNGRead.hpp"
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#include <boost/property_tree/ini_parser.hpp>
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#include <boost/filesystem/path.hpp>
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#include <boost/algorithm/string.hpp>
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#include <wx/mstream.h>
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namespace marchsq {
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template<> struct _RasterTraits<Slic3r::png::ImageGreyscale> {
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using Rst = Slic3r::png::ImageGreyscale;
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// The type of pixel cell in the raster
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using ValueType = uint8_t;
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// Value at a given position
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static uint8_t get(const Rst &rst, size_t row, size_t col)
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{
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return rst.get(row, col);
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}
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// Number of rows and cols of the raster
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static size_t rows(const Rst &rst) { return rst.rows; }
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static size_t cols(const Rst &rst) { return rst.cols; }
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};
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} // namespace marchsq
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namespace Slic3r {
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namespace {
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struct PNGBuffer { std::vector<uint8_t> buf; std::string fname; };
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struct ArchiveData {
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boost::property_tree::ptree profile, config;
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std::vector<PNGBuffer> images;
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};
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static const constexpr char *CONFIG_FNAME = "config.ini";
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static const constexpr char *PROFILE_FNAME = "prusaslicer.ini";
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boost::property_tree::ptree read_ini(const mz_zip_archive_file_stat &entry,
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MZ_Archive & zip)
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{
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std::string buf(size_t(entry.m_uncomp_size), '\0');
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if (!mz_zip_reader_extract_file_to_mem(&zip.arch, entry.m_filename,
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buf.data(), buf.size(), 0))
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throw std::runtime_error(zip.get_errorstr());
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boost::property_tree::ptree tree;
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std::stringstream ss(buf);
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boost::property_tree::read_ini(ss, tree);
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return tree;
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}
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PNGBuffer read_png(const mz_zip_archive_file_stat &entry,
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MZ_Archive & zip,
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const std::string & name)
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{
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std::vector<uint8_t> buf(entry.m_uncomp_size);
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if (!mz_zip_reader_extract_file_to_mem(&zip.arch, entry.m_filename,
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buf.data(), buf.size(), 0))
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throw std::runtime_error(zip.get_errorstr());
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return {std::move(buf), (name.empty() ? entry.m_filename : name)};
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}
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ArchiveData extract_sla_archive(const std::string &zipfname,
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const std::string &exclude)
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{
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ArchiveData arch;
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// Little RAII
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struct Arch: public MZ_Archive {
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Arch(const std::string &fname) {
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if (!open_zip_reader(&arch, fname))
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throw std::runtime_error(get_errorstr());
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}
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~Arch() { close_zip_reader(&arch); }
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} zip (zipfname);
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mz_uint num_entries = mz_zip_reader_get_num_files(&zip.arch);
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for (mz_uint i = 0; i < num_entries; ++i)
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{
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mz_zip_archive_file_stat entry;
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if (mz_zip_reader_file_stat(&zip.arch, i, &entry))
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{
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std::string name = entry.m_filename;
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boost::algorithm::to_lower(name);
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if (boost::algorithm::contains(name, exclude)) continue;
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if (name == CONFIG_FNAME) arch.config = read_ini(entry, zip);
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if (name == PROFILE_FNAME) arch.profile = read_ini(entry, zip);
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if (boost::filesystem::path(name).extension().string() == ".png") {
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auto it = std::lower_bound(
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arch.images.begin(), arch.images.end(), PNGBuffer{{}, name},
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[](const PNGBuffer &r1, const PNGBuffer &r2) {
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return std::less<std::string>()(r1.fname, r2.fname);
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});
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arch.images.insert(it, read_png(entry, zip, name));
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}
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}
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}
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return arch;
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}
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ExPolygons rings_to_expolygons(const std::vector<marchsq::Ring> &rings,
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double px_w, double px_h)
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{
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ExPolygons polys; polys.reserve(rings.size());
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for (const marchsq::Ring &ring : rings) {
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Polygon poly; Points &pts = poly.points;
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pts.reserve(ring.size());
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for (const marchsq::Coord &crd : ring)
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pts.emplace_back(scaled(crd.c * px_w), scaled(crd.r * px_h));
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polys.emplace_back(poly);
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}
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// reverse the raster transformations
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return union_ex(polys);
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}
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template<class Fn> void foreach_vertex(ExPolygon &poly, Fn &&fn)
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{
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for (auto &p : poly.contour.points) fn(p);
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for (auto &h : poly.holes)
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for (auto &p : h.points) fn(p);
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}
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void invert_raster_trafo(ExPolygons & expolys,
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const sla::RasterBase::Trafo &trafo,
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coord_t width,
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coord_t height)
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{
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for (auto &expoly : expolys) {
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if (trafo.mirror_y)
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foreach_vertex(expoly, [height](Point &p) {p.y() = height - p.y(); });
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if (trafo.mirror_x)
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foreach_vertex(expoly, [width](Point &p) {p.x() = width - p.x(); });
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expoly.translate(-trafo.center_x, -trafo.center_y);
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if (trafo.flipXY)
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foreach_vertex(expoly, [](Point &p) { std::swap(p.x(), p.y()); });
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if ((trafo.mirror_x + trafo.mirror_y + trafo.flipXY) % 2) {
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expoly.contour.reverse();
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for (auto &h : expoly.holes) h.reverse();
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}
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}
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}
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struct RasterParams {
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sla::RasterBase::Trafo trafo; // Raster transformations
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coord_t width, height; // scaled raster dimensions (not resolution)
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double px_h, px_w; // pixel dimesions
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marchsq::Coord win; // marching squares window size
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};
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RasterParams get_raster_params(const DynamicPrintConfig &cfg)
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{
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auto *opt_disp_cols = cfg.option<ConfigOptionInt>("display_pixels_x");
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auto *opt_disp_rows = cfg.option<ConfigOptionInt>("display_pixels_y");
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auto *opt_disp_w = cfg.option<ConfigOptionFloat>("display_width");
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auto *opt_disp_h = cfg.option<ConfigOptionFloat>("display_height");
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auto *opt_mirror_x = cfg.option<ConfigOptionBool>("display_mirror_x");
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auto *opt_mirror_y = cfg.option<ConfigOptionBool>("display_mirror_y");
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auto *opt_orient = cfg.option<ConfigOptionEnum<SLADisplayOrientation>>("display_orientation");
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if (!opt_disp_cols || !opt_disp_rows || !opt_disp_w || !opt_disp_h ||
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!opt_mirror_x || !opt_mirror_y || !opt_orient)
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throw std::runtime_error("Invalid SL1 file");
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RasterParams rstp;
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rstp.px_w = opt_disp_w->value / (opt_disp_cols->value - 1);
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rstp.px_h = opt_disp_h->value / (opt_disp_rows->value - 1);
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sla::RasterBase::Trafo trafo{opt_orient->value == sladoLandscape ?
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sla::RasterBase::roLandscape :
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sla::RasterBase::roPortrait,
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{opt_mirror_x->value, opt_mirror_y->value}};
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rstp.height = scaled(opt_disp_h->value);
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rstp.width = scaled(opt_disp_w->value);
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return rstp;
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}
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struct SliceParams { double layerh = 0., initial_layerh = 0.; };
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SliceParams get_slice_params(const DynamicPrintConfig &cfg)
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{
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auto *opt_layerh = cfg.option<ConfigOptionFloat>("layer_height");
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auto *opt_init_layerh = cfg.option<ConfigOptionFloat>("initial_layer_height");
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if (!opt_layerh || !opt_init_layerh)
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throw std::runtime_error("Invalid SL1 file");
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return SliceParams{opt_layerh->getFloat(), opt_init_layerh->getFloat()};
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}
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std::vector<ExPolygons> extract_slices_from_sla_archive(
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ArchiveData & arch,
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const RasterParams & rstp,
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std::function<bool(int)> progr)
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{
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auto jobdir = arch.config.get<std::string>("jobDir");
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for (auto &c : jobdir) c = std::tolower(c);
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std::vector<ExPolygons> slices(arch.images.size());
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struct Status
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{
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double incr, val, prev;
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bool stop = false;
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tbb::spin_mutex mutex;
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} st {100. / slices.size(), 0., 0.};
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tbb::parallel_for(size_t(0), arch.images.size(),
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[&arch, &slices, &st, &rstp, progr](size_t i) {
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// Status indication guarded with the spinlock
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{
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std::lock_guard<tbb::spin_mutex> lck(st.mutex);
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if (st.stop) return;
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st.val += st.incr;
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double curr = std::round(st.val);
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if (curr > st.prev) {
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st.prev = curr;
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st.stop = !progr(int(curr));
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}
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}
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// PNGBuffer &png = arch.images[i];
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// wxMemoryInputStream stream{png.buf.data(), png.buf.size()};
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// wxImage img{stream};
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png::ImageGreyscale img;
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png::ReadBuf rb{arch.images[i].buf.data(), arch.images[i].buf.size()};
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png::decode_png(rb, img);
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auto rings = marchsq::execute(img, 128, rstp.win);
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ExPolygons expolys = rings_to_expolygons(rings, rstp.px_w, rstp.px_h);
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// Invert the raster transformations indicated in
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// the profile metadata
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invert_raster_trafo(expolys, rstp.trafo, rstp.width, rstp.height);
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slices[i] = std::move(expolys);
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});
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if (st.stop) slices = {};
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return slices;
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}
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} // namespace
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void import_sla_archive(const std::string &zipfname, DynamicPrintConfig &out)
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{
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ArchiveData arch = extract_sla_archive(zipfname, "png");
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out.load(arch.profile);
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}
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void import_sla_archive(
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const std::string & zipfname,
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Vec2i windowsize,
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TriangleMesh & out,
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DynamicPrintConfig & profile,
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std::function<bool(int)> progr)
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{
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// Ensure minimum window size for marching squares
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windowsize.x() = std::max(2, windowsize.x());
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windowsize.y() = std::max(2, windowsize.y());
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ArchiveData arch = extract_sla_archive(zipfname, "thumbnail");
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profile.load(arch.profile);
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RasterParams rstp = get_raster_params(profile);
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rstp.win = {windowsize.y(), windowsize.x()};
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SliceParams slicp = get_slice_params(profile);
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std::vector<ExPolygons> slices =
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extract_slices_from_sla_archive(arch, rstp, progr);
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if (!slices.empty())
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out = slices_to_triangle_mesh(slices, 0, slicp.layerh, slicp.initial_layerh);
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}
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} // namespace Slic3r
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tamasmeszaros