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Diffstat (limited to 'svg-flatten/src/out_gdsii.cpp')
| -rw-r--r-- | svg-flatten/src/out_gdsii.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/svg-flatten/src/out_gdsii.cpp b/svg-flatten/src/out_gdsii.cpp new file mode 100644 index 0000000..fc7760b --- /dev/null +++ b/svg-flatten/src/out_gdsii.cpp @@ -0,0 +1,121 @@ +/* + * This file is part of gerbolyze, a vector image preprocessing toolchain + * Copyright (C) 2021 Jan Sebastian Götte <gerbolyze@jaseg.de> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include <cmath> +#include <algorithm> +#include <string> +#include <iostream> +#include <iomanip> +#include <time.h> +#include <gerbolyze.hpp> +#include <svg_import_defs.h> + +using namespace gerbolyze; +using namespace std; + +SimpleGDSIIOutput::SimpleGDSIIOutput(ostream &out, bool only_polys=false, double scale, d2p offset, bool flip_polarity, std::string libname) + : StreamPolygonSink(out, only_polys), + m_offset(offset), + m_scale(scale), + m_flip_pol(flip_polarity), + m_libname(libname) +{ +} + +void SimpleGDSIIOutput::header_impl(d2p origin, d2p size) { + m_offset[0] += origin[0] * m_scale; + m_offset[1] += origin[1] * m_scale; + m_width = (size[0] - origin[0]) * m_scale; + m_height = (size[1] - origin[1]) * m_scale; + + gds_wr16(GDS_HEADER, {600}); + + time_t t = time(NULL); + struct tm; + gmtime_r(&t, &tm); + gds_wr16(GDS_BGNLIB, {tm.tm_year, tm.tm_month, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, + tm.tm_year, tm.tm_month, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec}); + + gds_wr_str(GDS_LIBNAME, m_libname); +} + +void gds_wr_d(uint16_t tag, double value) { + uint64_t d_ul = reinterpret_cast<uint64_t>(value); + uint64_t sign = !!(casted & (1ULL<<63)); + int exp = (casted >> 52) & 0x7ffULL; + uint64_t mant = (casted & ((1ULL<<52)-1)) | (1ULL<<52); + + int new_exp = (exp - 1023) / 4 + 64; + int exp_mod = (exp + 1) % 4; + uint64_t new_mant = mant * (1<<exp_mod); + + gds_wr16 +} + +SimpleGDSIIOutput& SimpleGDSIIOutput::operator<<(GerberPolarityToken pol) { + assert(pol == GRB_POL_DARK || pol == GRB_POL_CLEAR); + + if (m_outline_mode) { + assert(pol == GRB_POL_DARK); + } + + if ((pol == GRB_POL_DARK) != m_flip_pol) { + m_out << "%LPD*%" << endl; + } else { + m_out << "%LPC*%" << endl; + } + + return *this; +} +SimpleGDSIIOutput& SimpleGDSIIOutput::operator<<(const Polygon &poly) { + if (poly.size() < 3 && !m_outline_mode) { + cerr << "Warning: " << poly.size() << "-element polygon passed to SimpleGerberOutput" << endl; + return *this; + } + + /* NOTE: Clipper and gerber both have different fixed-point scales. We get points in double mm. */ + double x = round((poly[0][0] * m_scale + m_offset[0]) * m_gerber_scale); + double y = round((m_height - poly[0][1] * m_scale + m_offset[1]) * m_gerber_scale); + if (!m_outline_mode) { + m_out << "G36*" << endl; + } + + m_out << "X" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal /* isn't C++ a marvel of engineering? */ << (long long int)x + << "Y" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal << (long long int)y + << "D02*" << endl; + m_out << "G01*" << endl; + + for (size_t i=1; i<poly.size(); i++) { + double x = round((poly[i][0] * m_scale + m_offset[0]) * m_gerber_scale); + double y = round((m_height - poly[i][1] * m_scale + m_offset[1]) * m_gerber_scale); + m_out << "X" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal << (long long int)x + << "Y" << setw(m_digits_int + m_digits_frac) << setfill('0') << std::internal << (long long int)y + << "D01*" << endl; + } + + if (!m_outline_mode) { + m_out << "G37*" << endl; + } + + return *this; +} + +void SimpleGDSIIOutput::footer_impl() { + +} + |