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#ifndef SLA_RASTERWRITER_HPP
#define SLA_RASTERWRITER_HPP
// For png export of the sliced model
#include <fstream>
#include <string>
#include <sstream>
#include <vector>
#include <map>
#include <array>
#include <libslic3r/SLA/Raster.hpp>
namespace Slic3r {
class DynamicPrintConfig;
namespace sla {
// API to write the zipped sla output layers and metadata.
// Implementation uses PNG raster output.
// Be aware that if a large number of layers are allocated, it can very well
// exhaust the available memory especially on 32 bit platform.
// This class is designed to be used in parallel mode. Layers have an ID and
// each layer can be written and compressed independently (in parallel).
// At the end when all layers where written, the save method can be used to
// write out the result into a zipped archive.
class RasterWriter
{
public:
// Used for addressing parameters of set_statistics()
struct PrintStatistics
{
double used_material = 0.;
double estimated_print_time_s = 0.;
size_t num_fade = 0;
size_t num_slow = 0;
size_t num_fast = 0;
};
private:
// A struct to bind the raster image data and its compressed bytes together.
struct Layer {
Raster raster;
PNGImage rawbytes;
Layer() = default;
// The image is big, do not copy by accident
Layer(const Layer&) = delete;
Layer& operator=(const Layer&) = delete;
Layer(Layer &&m) = default;
Layer &operator=(Layer &&) = default;
};
// We will save the compressed PNG data into RawBytes type buffers in
// parallel. Later we can write every layer to the disk sequentially.
std::vector<Layer> m_layers_rst;
Raster::Resolution m_res;
Raster::PixelDim m_pxdim;
Raster::Trafo m_trafo;
double m_gamma;
std::map<std::string, std::string> m_config;
std::string createIniContent(const std::string& projectname) const;
public:
// SLARasterWriter is using Raster in custom mirroring mode
RasterWriter(const Raster::Resolution &res,
const Raster::PixelDim & pixdim,
const Raster::Trafo & trafo,
double gamma = 1.);
RasterWriter(const RasterWriter& ) = delete;
RasterWriter& operator=(const RasterWriter&) = delete;
RasterWriter(RasterWriter&& m) = default;
RasterWriter& operator=(RasterWriter&&) = default;
inline void layers(unsigned cnt) { if(cnt > 0) m_layers_rst.resize(cnt); }
inline unsigned layers() const { return unsigned(m_layers_rst.size()); }
template<class Poly> void draw_polygon(const Poly& p, unsigned lyr)
{
assert(lyr < m_layers_rst.size());
m_layers_rst[lyr].raster.draw(p);
}
inline void begin_layer(unsigned lyr) {
if(m_layers_rst.size() <= lyr) m_layers_rst.resize(lyr+1);
m_layers_rst[lyr].raster.reset(m_res, m_pxdim, m_trafo);
}
inline void begin_layer() {
m_layers_rst.emplace_back();
m_layers_rst.front().raster.reset(m_res, m_pxdim, m_trafo);
}
inline void finish_layer(unsigned lyr_id) {
assert(lyr_id < m_layers_rst.size());
m_layers_rst[lyr_id].rawbytes.serialize(m_layers_rst[lyr_id].raster);
m_layers_rst[lyr_id].raster.reset();
}
inline void finish_layer() {
if(!m_layers_rst.empty()) {
m_layers_rst.back().rawbytes.serialize(m_layers_rst.back().raster);
m_layers_rst.back().raster.reset();
}
}
void save(const std::string &fpath, const std::string &prjname = "");
void set_statistics(const PrintStatistics &statistics);
void set_config(const DynamicPrintConfig &cfg);
};
} // namespace sla
} // namespace Slic3r
#endif // SLARASTERWRITER_HPP
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