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https://github.com/SoftFever/OrcaSlicer.git
synced 2025-07-12 01:07:57 -06:00
Mirroring refactored.
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tamasmeszaros
parent
baab5e49f1
commit
bb73b59aa6
10 changed files with 380 additions and 680 deletions
306
src/libslic3r/SLA/SLARaster.cpp
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306
src/libslic3r/SLA/SLARaster.cpp
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#ifndef SLARASTER_CPP
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#define SLARASTER_CPP
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#include "SLARaster.hpp"
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#include "libslic3r/ExPolygon.hpp"
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#include <libnest2d/backends/clipper/clipper_polygon.hpp>
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// For rasterizing
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#include <agg/agg_basics.h>
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#include <agg/agg_rendering_buffer.h>
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#include <agg/agg_pixfmt_gray.h>
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#include <agg/agg_pixfmt_rgb.h>
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#include <agg/agg_renderer_base.h>
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#include <agg/agg_renderer_scanline.h>
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#include <agg/agg_scanline_p.h>
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#include <agg/agg_rasterizer_scanline_aa.h>
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#include <agg/agg_path_storage.h>
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// Experimental minz image write:
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#include <miniz/miniz_tdef.h>
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namespace Slic3r {
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inline const Polygon& contour(const ExPolygon& p) { return p.contour; }
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inline const ClipperLib::Path& contour(const ClipperLib::Polygon& p) { return p.Contour; }
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inline const Polygons& holes(const ExPolygon& p) { return p.holes; }
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inline const ClipperLib::Paths& holes(const ClipperLib::Polygon& p) { return p.Holes; }
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namespace sla {
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class Raster::Impl {
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public:
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using TPixelRenderer = agg::pixfmt_gray8; // agg::pixfmt_rgb24;
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using TRawRenderer = agg::renderer_base<TPixelRenderer>;
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using TPixel = TPixelRenderer::color_type;
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using TRawBuffer = agg::rendering_buffer;
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using TBuffer = std::vector<TPixelRenderer::pixel_type>;
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using TRendererAA = agg::renderer_scanline_aa_solid<TRawRenderer>;
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static const TPixel ColorWhite;
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static const TPixel ColorBlack;
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using Format = Raster::Format;
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private:
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Raster::Resolution m_resolution;
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// Raster::PixelDim m_pxdim;
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Raster::PixelDim m_pxdim_scaled; // used for scaled coordinate polygons
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TBuffer m_buf;
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TRawBuffer m_rbuf;
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TPixelRenderer m_pixfmt;
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TRawRenderer m_raw_renderer;
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TRendererAA m_renderer;
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std::function<double(double)> m_gammafn;
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std::array<bool, 2> m_mirror;
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inline void flipy(agg::path_storage& path) const {
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path.flip_y(0, m_resolution.height_px);
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}
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inline void flipx(agg::path_storage& path) const {
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path.flip_x(0, m_resolution.width_px);
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}
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public:
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inline Impl(const Raster::Resolution& res, const Raster::PixelDim &pd,
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const std::array<bool, 2>& mirror, double gamma = 1.0):
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m_resolution(res),
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// m_pxdim(pd),
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m_pxdim_scaled(SCALING_FACTOR / pd.w_mm, SCALING_FACTOR / pd.h_mm),
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m_buf(res.pixels()),
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m_rbuf(reinterpret_cast<TPixelRenderer::value_type*>(m_buf.data()),
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res.width_px, res.height_px,
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int(res.width_px*TPixelRenderer::num_components)),
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m_pixfmt(m_rbuf),
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m_raw_renderer(m_pixfmt),
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m_renderer(m_raw_renderer),
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m_mirror(mirror)
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{
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m_renderer.color(ColorWhite);
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if(gamma > 0) m_gammafn = agg::gamma_power(gamma);
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else m_gammafn = agg::gamma_threshold(0.5);
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clear();
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}
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inline Impl(const Raster::Resolution& res,
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const Raster::PixelDim &pd,
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Format fmt,
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double gamma = 1.0):
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Impl(res, pd, {false, false}, gamma)
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{
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switch (fmt) {
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case Format::PNG: m_mirror = {false, true}; break;
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case Format::RAW: m_mirror = {false, false}; break;
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}
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}
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template<class P> void draw(const P &poly) {
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agg::rasterizer_scanline_aa<> ras;
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agg::scanline_p8 scanlines;
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ras.gamma(m_gammafn);
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auto&& path = to_path(contour(poly));
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if(m_mirror[X]) flipx(path);
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if(m_mirror[Y]) flipy(path);
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ras.add_path(path);
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for(auto& h : holes(poly)) {
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auto&& holepath = to_path(h);
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if(m_mirror[X]) flipx(holepath);
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if(m_mirror[Y]) flipy(holepath);
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ras.add_path(holepath);
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}
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agg::render_scanlines(ras, scanlines, m_renderer);
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}
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inline void clear() {
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m_raw_renderer.clear(ColorBlack);
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}
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inline TBuffer& buffer() { return m_buf; }
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inline const Raster::Resolution resolution() { return m_resolution; }
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private:
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inline double getPx(const Point& p) {
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return p(0) * m_pxdim_scaled.w_mm;
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}
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inline double getPy(const Point& p) {
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return p(1) * m_pxdim_scaled.h_mm;
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}
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inline agg::path_storage to_path(const Polygon& poly)
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{
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return to_path(poly.points);
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}
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inline double getPx(const ClipperLib::IntPoint& p) {
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return p.X * m_pxdim_scaled.w_mm;
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}
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inline double getPy(const ClipperLib::IntPoint& p) {
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return p.Y * m_pxdim_scaled.h_mm;
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}
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template<class PointVec> agg::path_storage to_path(const PointVec& poly)
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{
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agg::path_storage path;
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auto it = poly.begin();
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path.move_to(getPx(*it), getPy(*it));
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while(++it != poly.end())
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path.line_to(getPx(*it), getPy(*it));
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path.line_to(getPx(poly.front()), getPy(poly.front()));
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return path;
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}
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};
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const Raster::Impl::TPixel Raster::Impl::ColorWhite = Raster::Impl::TPixel(255);
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const Raster::Impl::TPixel Raster::Impl::ColorBlack = Raster::Impl::TPixel(0);
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Raster::Raster() = default;
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Raster::~Raster() = default;
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Raster::Raster(Raster &&m) = default;
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Raster& Raster::operator=(Raster&&) = default;
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void Raster::reset(const Raster::Resolution &r, const Raster::PixelDim &pd,
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Format fmt, double gamma)
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{
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m_impl.reset();
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m_impl.reset(new Impl(r, pd, fmt, gamma));
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}
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void Raster::reset(const Raster::Resolution &r, const Raster::PixelDim &pd,
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const std::array<bool, 2>& mirror, double gamma)
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{
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m_impl.reset();
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m_impl.reset(new Impl(r, pd, mirror, gamma));
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}
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void Raster::reset()
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{
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m_impl.reset();
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}
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Raster::Resolution Raster::resolution() const
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{
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if(m_impl) return m_impl->resolution();
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return Resolution(0, 0);
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}
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void Raster::clear()
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{
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assert(m_impl);
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m_impl->clear();
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}
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void Raster::draw(const ExPolygon &expoly)
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{
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m_impl->draw(expoly);
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}
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void Raster::draw(const ClipperLib::Polygon &poly)
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{
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m_impl->draw(poly);
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}
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void Raster::save(std::ostream& stream, Format fmt)
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{
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assert(m_impl);
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if(!stream.good()) return;
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switch(fmt) {
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case Format::PNG: {
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auto& b = m_impl->buffer();
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size_t out_len = 0;
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void * rawdata = tdefl_write_image_to_png_file_in_memory(
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b.data(),
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int(resolution().width_px),
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int(resolution().height_px), 1, &out_len);
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if(rawdata == nullptr) break;
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stream.write(static_cast<const char*>(rawdata),
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std::streamsize(out_len));
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MZ_FREE(rawdata);
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break;
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}
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case Format::RAW: {
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stream << "P5 "
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<< m_impl->resolution().width_px << " "
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<< m_impl->resolution().height_px << " "
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<< "255 ";
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auto sz = m_impl->buffer().size()*sizeof(Impl::TBuffer::value_type);
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stream.write(reinterpret_cast<const char*>(m_impl->buffer().data()),
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std::streamsize(sz));
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}
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}
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}
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RawBytes Raster::save(Format fmt)
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{
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assert(m_impl);
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std::vector<std::uint8_t> data; size_t s = 0;
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switch(fmt) {
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case Format::PNG: {
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void *rawdata = tdefl_write_image_to_png_file_in_memory(
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m_impl->buffer().data(),
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int(resolution().width_px),
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int(resolution().height_px), 1, &s);
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if(rawdata == nullptr) break;
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auto ptr = static_cast<std::uint8_t*>(rawdata);
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data.reserve(s); std::copy(ptr, ptr + s, std::back_inserter(data));
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MZ_FREE(rawdata);
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break;
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}
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case Format::RAW: {
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auto header = std::string("P5 ") +
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std::to_string(m_impl->resolution().width_px) + " " +
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std::to_string(m_impl->resolution().height_px) + " " + "255 ";
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auto sz = m_impl->buffer().size()*sizeof(Impl::TBuffer::value_type);
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s = sz + header.size();
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data.reserve(s);
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auto buff = reinterpret_cast<std::uint8_t*>(m_impl->buffer().data());
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std::copy(header.begin(), header.end(), std::back_inserter(data));
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std::copy(buff, buff+sz, std::back_inserter(data));
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break;
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}
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}
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return {std::move(data)};
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}
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}
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}
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#endif // SLARASTER_CPP
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