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Merging with master for having minz png compression.

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Much greater performance boost from better compression algorithm than that from the merged polygons.
This commit is contained in:
tamasmeszaros 2019-03-29 15:21:46 +01:00
commit 725f115756
344 changed files with 786 additions and 116524 deletions
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64
src/libslic3r/PrintExport.hpp
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@ -81,9 +81,8 @@ public:
// Provokes static_assert in the right way.
template<class T = void> struct VeryFalse { static const bool value = false; };
// This has to be explicitly implemented in the gui layer or a default zlib
// based implementation is needed. I don't have time for that and I'm delegating
// the implementation to the gui layer where the gui toolkit can cover this.
// This can be explicitly implemented in the gui layer or the default Zipper
// API in libslic3r with minz.
template<class Fmt> class LayerWriter {
public:
@ -92,17 +91,28 @@ public:
"No layer writer implementation provided!");
}
// Should create a new file within the zip with the given filename. It
// should also finish any previous entry.
void next_entry(const std::string& /*fname*/) {}
// Should create a new file within the archive and write the provided data.
void binary_entry(const std::string& /*fname*/,
const std::uint8_t* buf, size_t len);
// Get the name of the archive but only the name part without the path or
// the extension.
std::string get_name() { return ""; }
// Test whether the object can still be used for writing.
bool is_ok() { return false; }
template<class T> LayerWriter& operator<<(const T& /*arg*/) {
// Write some data (text) into the current file (entry) within the archive.
template<class T> LayerWriter& operator<<(T&& /*arg*/) {
return *this;
}
void close() {}
// Flush the current entry into the archive.
void finalize() {}
};
// Implementation for PNG raster output
@ -111,14 +121,14 @@ public:
template<> class FilePrinter<FilePrinterFormat::SLA_PNGZIP>
{
struct Layer {
Raster first;
std::stringstream second;
Raster raster;
RawBytes rawbytes;
Layer() {}
Layer(const Layer&) = delete;
Layer(Layer&& m):
first(std::move(m.first))/*, second(std::move(m.second))*/ {}
raster(std::move(m.raster)) {}
};
// We will save the compressed PNG data into stringstreams which can be done
@ -136,14 +146,11 @@ template<> class FilePrinter<FilePrinterFormat::SLA_PNGZIP>
int m_cnt_fast_layers = 0;
std::string createIniContent(const std::string& projectname) {
// double layer_height = m_layer_height;
using std::string;
using std::to_string;
auto expt_str = to_string(m_exp_time_s);
auto expt_first_str = to_string(m_exp_time_first_s);
// auto stepnum_str = to_string(static_cast<unsigned>(800*layer_height));
auto layerh_str = to_string(m_layer_height);
const std::string cnt_fade_layers = to_string(m_cnt_fade_layers);
@ -212,7 +219,7 @@ public:
inline void draw_polygon(const ExPolygon& p, unsigned lyr) {
assert(lyr < m_layers_rst.size());
m_layers_rst[lyr].first.draw(p);
m_layers_rst[lyr].raster.draw(p);
}
inline void draw_polygon(const ClipperLib::Polygon& p, unsigned lyr) {
@ -222,26 +229,26 @@ public:
inline void begin_layer(unsigned lyr) {
if(m_layers_rst.size() <= lyr) m_layers_rst.resize(lyr+1);
m_layers_rst[lyr].first.reset(m_res, m_pxdim, m_o);
m_layers_rst[lyr].raster.reset(m_res, m_pxdim, m_o);
}
inline void begin_layer() {
m_layers_rst.emplace_back();
m_layers_rst.front().first.reset(m_res, m_pxdim, m_o);
m_layers_rst.front().raster.reset(m_res, m_pxdim, m_o);
}
inline void finish_layer(unsigned lyr_id) {
assert(lyr_id < m_layers_rst.size());
m_layers_rst[lyr_id].first.save(m_layers_rst[lyr_id].second,
Raster::Compression::PNG);
m_layers_rst[lyr_id].first.reset();
m_layers_rst[lyr_id].rawbytes =
m_layers_rst[lyr_id].raster.save(Raster::Compression::PNG);
m_layers_rst[lyr_id].raster.reset();
}
inline void finish_layer() {
if(!m_layers_rst.empty()) {
m_layers_rst.back().first.save(m_layers_rst.back().second,
Raster::Compression::PNG);
m_layers_rst.back().first.reset();
m_layers_rst.back().rawbytes =
m_layers_rst.back().raster.save(Raster::Compression::PNG);
m_layers_rst.back().raster.reset();
}
}
@ -260,20 +267,19 @@ public:
for(unsigned i = 0; i < m_layers_rst.size() && writer.is_ok(); i++)
{
if(m_layers_rst[i].second.rdbuf()->in_avail() > 0) {
if(m_layers_rst[i].rawbytes.size() > 0) {
char lyrnum[6];
std::sprintf(lyrnum, "%.5d", i);
auto zfilename = project + lyrnum + ".png";
writer.next_entry(zfilename);
if(!writer.is_ok()) break;
writer << m_layers_rst[i].second.str();
// writer << m_layers_rst[i].second.rdbuf();
// we can keep the date for later calls of this method
//m_layers_rst[i].second.str("");
writer.binary_entry(zfilename,
m_layers_rst[i].rawbytes.data(),
m_layers_rst[i].rawbytes.size());
}
}
writer.finalize();
} catch(std::exception& e) {
BOOST_LOG_TRIVIAL(error) << e.what();
// Rethrow the exception
@ -291,13 +297,13 @@ public:
std::fstream out(loc, std::fstream::out | std::fstream::binary);
if(out.good()) {
m_layers_rst[i].first.save(out, Raster::Compression::PNG);
m_layers_rst[i].raster.save(out, Raster::Compression::PNG);
} else {
BOOST_LOG_TRIVIAL(error) << "Can't create file for layer";
}
out.close();
m_layers_rst[i].first.reset();
m_layers_rst[i].raster.reset();
}
void set_statistics(const std::vector<double> statistics)