#7008 - GCodeViewer - Fixed loading of gcodes generated by SuperSlicer

src/libslic3r/Config.cpp

@@ -740,7 +740,11 @@ ConfigSubstitutions ConfigBase::load(const boost::property_tree::ptree &tree, Fo
 }
 
 // Load the config keys from the given string.
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+size_t ConfigBase::load_from_gcode_string_legacy(ConfigBase& config, const char* str, ConfigSubstitutionContext& substitutions)
+#else
 static inline size_t load_from_gcode_string_legacy(ConfigBase& config, const char* str, ConfigSubstitutionContext& substitutions)
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
 {
     if (str == nullptr)
         return 0;

src/libslic3r/Config.hpp

@@ -2015,6 +2015,10 @@ public:
 	// Set all the nullable values to nils.
     void null_nullables();
 
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+    static size_t load_from_gcode_string_legacy(ConfigBase& config, const char* str, ConfigSubstitutionContext& substitutions);
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+
 private:
     // Set a configuration value from a string.
     bool set_deserialize_raw(const t_config_option_key& opt_key_src, const std::string& value, ConfigSubstitutionContext& substitutions, bool append);

src/libslic3r/GCode/GCodeProcessor.cpp

@@ -746,6 +746,9 @@ const std::vector<std::pair<GCodeProcessor::EProducer, std::string>> GCodeProces
     { EProducer::PrusaSlicer, "generated by PrusaSlicer" },
     { EProducer::Slic3rPE,    "generated by Slic3r Prusa Edition" },
     { EProducer::Slic3r,      "generated by Slic3r" },
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+    { EProducer::SuperSlicer, "generated by SuperSlicer" },
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
     { EProducer::Cura,        "Cura_SteamEngine" },
     { EProducer::Simplify3D,  "G-Code generated by Simplify3D(R)" },
     { EProducer::CraftWare,   "CraftWare" },
@@ -1227,6 +1230,10 @@ void GCodeProcessor::process_file(const std::string& filename, std::function<voi
         }
         else if (m_producer == EProducer::Simplify3D)
             apply_config_simplify3d(filename);
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+        else if (m_producer == EProducer::SuperSlicer)
+            apply_config_superslicer(filename);
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
     }
 
     // process gcode
@@ -1360,6 +1367,41 @@ std::vector<std::pair<ExtrusionRole, float>> GCodeProcessor::get_roles_time(Prin
     return ret;
 }
 
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+ConfigSubstitutions load_from_superslicer_gcode_file(const std::string& filename, DynamicPrintConfig& config, ForwardCompatibilitySubstitutionRule compatibility_rule)
+{
+    // for reference, see: ConfigBase::load_from_gcode_file()
+
+    boost::nowide::ifstream ifs(filename);
+
+    auto                      header_end_pos = ifs.tellg();
+    ConfigSubstitutionContext substitutions_ctxt(compatibility_rule);
+    size_t                    key_value_pairs = 0;
+
+    ifs.seekg(0, ifs.end);
+    auto file_length = ifs.tellg();
+    auto data_length = std::min<std::fstream::pos_type>(65535, file_length - header_end_pos);
+    ifs.seekg(file_length - data_length, ifs.beg);
+    std::vector<char> data(size_t(data_length) + 1, 0);
+    ifs.read(data.data(), data_length);
+    ifs.close();
+    key_value_pairs = ConfigBase::load_from_gcode_string_legacy(config, data.data(), substitutions_ctxt);
+
+    if (key_value_pairs < 80)
+        throw Slic3r::RuntimeError(format("Suspiciously low number of configuration values extracted from %1%: %2%", filename, key_value_pairs));
+
+    return std::move(substitutions_ctxt.substitutions);
+}
+
+void GCodeProcessor::apply_config_superslicer(const std::string& filename)
+{
+    DynamicPrintConfig config;
+    config.apply(FullPrintConfig::defaults());
+    load_from_superslicer_gcode_file(filename, config, ForwardCompatibilitySubstitutionRule::EnableSilent);
+    apply_config(config);
+}
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+
 std::vector<float> GCodeProcessor::get_layers_time(PrintEstimatedStatistics::ETimeMode mode) const
 {
     return (mode < PrintEstimatedStatistics::ETimeMode::Count) ?
@@ -1849,6 +1891,9 @@ bool GCodeProcessor::process_producers_tags(const std::string_view comment)
     {
     case EProducer::Slic3rPE:
     case EProducer::Slic3r: 
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+    case EProducer::SuperSlicer:
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
     case EProducer::PrusaSlicer: { return process_prusaslicer_tags(comment); }
     case EProducer::Cura:        { return process_cura_tags(comment); }
     case EProducer::Simplify3D:  { return process_simplify3d_tags(comment); }

src/libslic3r/GCode/GCodeProcessor.hpp

@@ -543,6 +543,9 @@ namespace Slic3r {
             PrusaSlicer,
             Slic3rPE,
             Slic3r,
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+            SuperSlicer,
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
             Cura,
             Simplify3D,
             CraftWare,
@@ -599,6 +602,9 @@ namespace Slic3r {
     private:
         void apply_config(const DynamicPrintConfig& config);
         void apply_config_simplify3d(const std::string& filename);
+#if ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
+        void apply_config_superslicer(const std::string& filename);
+#endif // ENABLE_FIX_SUPERSLICER_GCODE_IMPORT
         void process_gcode_line(const GCodeReader::GCodeLine& line, bool producers_enabled);
 
         // Process tags embedded into comments

src/libslic3r/Technologies.hpp

@@ -64,4 +64,13 @@
 #define ENABLE_FIX_SEAMS_SYNCH (1 && ENABLE_2_4_0_ALPHA2)
 
 
+//====================
+// 2.4.0.alpha3 techs
+//====================
+#define ENABLE_2_4_0_ALPHA3 1
+
+// Enable fixing loading of gcode files generated with SuperSlicer in GCodeViewer
+#define ENABLE_FIX_SUPERSLICER_GCODE_IMPORT (1 && ENABLE_2_4_0_ALPHA3)
+
+
 #endif // _prusaslicer_technologies_h_