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Fix #8716, #8717, and #8718: The pressure equalizer was producing a malformed GCode that caused underextrusion.

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This commit is contained in:
Lukáš Hejl 2022-08-19 12:14:45 +02:00
parent f95a6e3d33
commit 8c0db761c1
2 changed files with 20 additions and 7 deletions
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25
src/libslic3r/GCode/PressureEqualizer.cpp
View File

@ -669,17 +669,32 @@ inline void PressureEqualizer::push_to_output(const char *text, const size_t len
output_buffer[output_buffer_length] = 0;
}
inline bool PressureEqualizer::is_just_feedrate_provided(const GCodeLine &line)
inline bool is_just_line_with_extrude_set_speed_tag(const std::string &line)
{
return line.pos_provided[4] && !line.pos_provided[0] && !line.pos_provided[1] && !line.pos_provided[2] && !line.pos_provided[3];
if (line.empty() && !boost::starts_with(line, "G1 ") && !boost::ends_with(line, EXTRUDE_SET_SPEED_TAG))
return false;
const char *p_line = line.data() + 3;
const char *const line_end = line.data() + line.length() - 1;
while (!is_eol(*p_line)) {
if (toupper(*p_line++) == 'F')
break;
else
return false;
}
parse_float(p_line, line_end - p_line);
eatws(p_line);
p_line += EXTRUDE_SET_SPEED_TAG.length();
return p_line <= line_end && is_eol(*p_line);
}
void PressureEqualizer::push_line_to_output(const size_t line_idx, const float new_feedrate, const char *comment)
{
const GCodeLine &line = this->m_gcode_lines[line_idx];
if (line_idx > 0) {
const GCodeLine &prev_line = this->m_gcode_lines[line_idx - 1];
if (prev_line.extrude_set_speed_tag && this->is_just_feedrate_provided(prev_line))
if (line_idx > 0 && output_buffer_length > 0) {
const std::string prev_line_str = std::string(output_buffer.begin() + int(this->output_buffer_prev_length),
output_buffer.begin() + int(this->output_buffer_length) + 1);
if (is_just_line_with_extrude_set_speed_tag(prev_line_str))
this->output_buffer_length = this->output_buffer_prev_length; // Remove the last line because it only sets the speed for an empty block of g-code lines, so it is useless.
else
push_to_output(EXTRUDE_END_TAG.data(), EXTRUDE_END_TAG.length(), true);

2
src/libslic3r/GCode/PressureEqualizer.hpp
View File

@ -193,8 +193,6 @@ private:
// Push a G-code line to the output.
void push_line_to_output(size_t line_idx, float new_feedrate, const char *comment);
inline bool is_just_feedrate_provided(const GCodeLine &line);
public:
std::queue<LayerResult*> m_layer_results;