22a7afabba
Hopefully it will fix compilation on Linux (some forgotten Status macro?)
159 lines
7.0 KiB
C++
159 lines
7.0 KiB
C++
#ifndef slic3r_GUI_BackgroundSlicingProcess_hpp_
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#define slic3r_GUI_BackgroundSlicingProcess_hpp_
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#include <string>
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#include <condition_variable>
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#include <mutex>
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#include <thread>
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#include <wx/event.h>
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#include "Print.hpp"
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namespace Slic3r {
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class DynamicPrintConfig;
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class GCodePreviewData;
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class Model;
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class SLAPrint;
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class SlicingStatusEvent : public wxEvent
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{
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public:
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SlicingStatusEvent(wxEventType eventType, int winid, const PrintBase::SlicingStatus &status) :
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wxEvent(winid, eventType), status(std::move(status)) {}
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virtual wxEvent *Clone() const { return new SlicingStatusEvent(*this); }
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PrintBase::SlicingStatus status;
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};
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wxDEFINE_EVENT(EVT_SLICING_UPDATE, SlicingStatusEvent);
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// Print step IDs for keeping track of the print state.
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enum BackgroundSlicingProcessStep {
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bspsGCodeFinalize, bspsCount,
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};
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// Support for the GUI background processing (Slicing and G-code generation).
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// As of now this class is not declared in Slic3r::GUI due to the Perl bindings limits.
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class BackgroundSlicingProcess
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{
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public:
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BackgroundSlicingProcess();
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// Stop the background processing and finalize the bacgkround processing thread, remove temp files.
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~BackgroundSlicingProcess();
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void set_fff_print(Print *print) { m_fff_print = print; }
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void set_sla_print(SLAPrint *print) { m_sla_print = print; }
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void set_gcode_preview_data(GCodePreviewData *gpd) { m_gcode_preview_data = gpd; }
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// The following wxCommandEvent will be sent to the UI thread / Platter window, when the slicing is finished
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// and the background processing will transition into G-code export.
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// The wxCommandEvent is sent to the UI thread asynchronously without waiting for the event to be processed.
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void set_slicing_completed_event(int event_id) { m_event_slicing_completed_id = event_id; }
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// The following wxCommandEvent will be sent to the UI thread / Platter window, when the G-code export is finished.
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// The wxCommandEvent is sent to the UI thread asynchronously without waiting for the event to be processed.
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void set_finished_event(int event_id) { m_event_finished_id = event_id; }
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// Activate either m_fff_print or m_sla_print.
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void select_technology(PrinterTechnology tech);
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// Start the background processing. Returns false if the background processing was already running.
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bool start();
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// Cancel the background processing. Returns false if the background processing was not running.
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// A stopped background processing may be restarted with start().
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bool stop();
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// Cancel the background processing and reset the print. Returns false if the background processing was not running.
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// Useful when the Model or configuration is being changed drastically.
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bool reset();
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// Apply config over the print. Returns false, if the new config values caused any of the already
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// processed steps to be invalidated, therefore the task will need to be restarted.
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Print::ApplyStatus apply(const Model &model, const DynamicPrintConfig &config);
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// After calling apply, the empty() call will report whether there is anything to slice.
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bool empty() const;
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// Validate the print. Returns an empty string if valid, returns an error message if invalid.
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// Call validate before calling start().
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std::string validate();
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// Set the export path of the G-code.
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// Once the path is set, the G-code
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void schedule_export(const std::string &path);
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// Clear m_export_path.
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void reset_export();
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// Once the G-code export is scheduled, the apply() methods will do nothing.
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bool is_export_scheduled() const { return ! m_export_path.empty(); }
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enum State {
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// m_thread is not running yet, or it did not reach the STATE_IDLE yet (it does not wait on the condition yet).
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STATE_INITIAL = 0,
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// m_thread is waiting for the task to execute.
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STATE_IDLE,
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STATE_STARTED,
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// m_thread is executing a task.
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STATE_RUNNING,
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// m_thread finished executing a task, and it is waiting until the UI thread picks up the results.
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STATE_FINISHED,
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// m_thread finished executing a task, the task has been canceled by the UI thread, therefore the UI thread will not be notified.
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STATE_CANCELED,
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// m_thread exited the loop and it is going to finish. The UI thread should join on m_thread.
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STATE_EXIT,
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STATE_EXITED,
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};
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State state() const { return m_state; }
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bool idle() const { return m_state == STATE_IDLE; }
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bool running() const { return m_state == STATE_STARTED || m_state == STATE_RUNNING || m_state == STATE_FINISHED || m_state == STATE_CANCELED; }
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private:
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void thread_proc();
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void thread_proc_safe();
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void join_background_thread();
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// To be called by Print::apply() through the Print::m_cancel_callback to stop the background
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// processing before changing any data of running or finalized milestones.
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// This function shall not trigger any UI update through the wxWidgets event.
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void stop_internal();
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// Helper to wrap the FFF slicing & G-code generation.
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void process_fff();
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// Temporary: for mimicking the fff file export behavior with the raster output
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void process_sla();
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// Currently active print. It is one of m_fff_print and m_sla_print.
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PrintBase *m_print = nullptr;
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// Non-owned pointers to Print instances.
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Print *m_fff_print = nullptr;
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SLAPrint *m_sla_print = nullptr;
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// Data structure, to which the G-code export writes its annotations.
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GCodePreviewData *m_gcode_preview_data = nullptr;
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// Temporary G-code, there is one defined for the BackgroundSlicingProcess, differentiated from the other processes by a process ID.
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std::string m_temp_output_path;
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// Output path provided by the user. The output path may be set even if the slicing is running,
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// but once set, it cannot be re-set.
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std::string m_export_path;
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// Thread, on which the background processing is executed. The thread will always be present
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// and ready to execute the slicing process.
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std::thread m_thread;
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// Mutex and condition variable to synchronize m_thread with the UI thread.
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std::mutex m_mutex;
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std::condition_variable m_condition;
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State m_state = STATE_INITIAL;
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PrintState<BackgroundSlicingProcessStep, bspsCount> m_step_state;
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mutable tbb::mutex m_step_state_mutex;
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bool set_step_started(BackgroundSlicingProcessStep step);
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void set_step_done(BackgroundSlicingProcessStep step);
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bool is_step_done(BackgroundSlicingProcessStep step) const;
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bool invalidate_step(BackgroundSlicingProcessStep step);
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bool invalidate_all_steps();
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// If the background processing stop was requested, throw CanceledException.
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void throw_if_canceled() const { if (m_print->canceled()) throw CanceledException(); }
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// wxWidgets command ID to be sent to the platter to inform that the slicing is finished, and the G-code export will continue.
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int m_event_slicing_completed_id = 0;
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// wxWidgets command ID to be sent to the platter to inform that the task finished.
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int m_event_finished_id = 0;
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};
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}; // namespace Slic3r
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#endif /* slic3r_GUI_BackgroundSlicingProcess_hpp_ */
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