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Fix linear/3-point manual leveling buffer overrun

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Fixes #10137
This commit is contained in:
Scott Lahteine 2018-03-28 18:37:08 -05:00
parent cbdc78ec0f
commit aa20b3ef7c
1 changed files with 30 additions and 25 deletions
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55
Marlin/src/gcode/bedlevel/abl/G29.cpp
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@ -209,9 +209,9 @@ void GcodeSuite::G29() {
#endif
#if ENABLED(AUTO_BED_LEVELING_LINEAR)
ABL_VAR int abl2;
ABL_VAR int abl_points;
#elif ENABLED(PROBE_MANUALLY) // Bilinear
int constexpr abl2 = GRID_MAX_POINTS;
int constexpr abl_points = GRID_MAX_POINTS;
#endif
#if ENABLED(AUTO_BED_LEVELING_BILINEAR)
@ -230,7 +230,7 @@ void GcodeSuite::G29() {
#elif ENABLED(AUTO_BED_LEVELING_3POINT)
#if ENABLED(PROBE_MANUALLY)
int constexpr abl2 = 3; // used to show total points
int constexpr abl_points = 3; // used to show total points
#endif
// Probe at 3 arbitrary points
@ -342,7 +342,7 @@ void GcodeSuite::G29() {
return;
}
abl2 = abl_grid_points_x * abl_grid_points_y;
abl_points = abl_grid_points_x * abl_grid_points_y;
mean = 0;
#elif ENABLED(AUTO_BED_LEVELING_BILINEAR)
@ -458,8 +458,8 @@ void GcodeSuite::G29() {
if (verbose_level || seenQ) {
SERIAL_PROTOCOLPGM("Manual G29 ");
if (g29_in_progress) {
SERIAL_PROTOCOLPAIR("point ", min(abl_probe_index + 1, abl2));
SERIAL_PROTOCOLLNPAIR(" of ", abl2);
SERIAL_PROTOCOLPAIR("point ", min(abl_probe_index + 1, abl_points));
SERIAL_PROTOCOLLNPAIR(" of ", abl_points);
}
else
SERIAL_PROTOCOLLNPGM("idle");
@ -474,6 +474,11 @@ void GcodeSuite::G29() {
#endif
}
else {
#if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_3POINT)
const uint16_t index = abl_probe_index - 1;
#endif
// For G29 after adjusting Z.
// Save the previous Z before going to the next point
measured_z = current_position[Z_AXIS];
@ -481,13 +486,17 @@ void GcodeSuite::G29() {
#if ENABLED(AUTO_BED_LEVELING_LINEAR)
mean += measured_z;
eqnBVector[abl_probe_index] = measured_z;
eqnAMatrix[abl_probe_index + 0 * abl2] = xProbe;
eqnAMatrix[abl_probe_index + 1 * abl2] = yProbe;
eqnAMatrix[abl_probe_index + 2 * abl2] = 1;
eqnBVector[index] = measured_z;
eqnAMatrix[index + 0 * abl_points] = xProbe;
eqnAMatrix[index + 1 * abl_points] = yProbe;
eqnAMatrix[index + 2 * abl_points] = 1;
incremental_LSF(&lsf_results, xProbe, yProbe, measured_z);
#elif ENABLED(AUTO_BED_LEVELING_3POINT)
points[index].z = measured_z;
#elif ENABLED(AUTO_BED_LEVELING_BILINEAR)
z_values[xCount][yCount] = measured_z + zoffset;
@ -500,10 +509,6 @@ void GcodeSuite::G29() {
}
#endif
#elif ENABLED(AUTO_BED_LEVELING_3POINT)
points[abl_probe_index].z = measured_z;
#endif
}
@ -514,7 +519,7 @@ void GcodeSuite::G29() {
#if ABL_GRID
// Skip any unreachable points
while (abl_probe_index < abl2) {
while (abl_probe_index < abl_points) {
// Set xCount, yCount based on abl_probe_index, with zig-zag
PR_OUTER_VAR = abl_probe_index / PR_INNER_END;
@ -541,7 +546,7 @@ void GcodeSuite::G29() {
}
// Is there a next point to move to?
if (abl_probe_index < abl2) {
if (abl_probe_index < abl_points) {
_manual_goto_xy(xProbe, yProbe); // Can be used here too!
#if HAS_SOFTWARE_ENDSTOPS
// Disable software endstops to allow manual adjustment
@ -565,7 +570,7 @@ void GcodeSuite::G29() {
#elif ENABLED(AUTO_BED_LEVELING_3POINT)
// Probe at 3 arbitrary points
if (abl_probe_index < abl2) {
if (abl_probe_index < abl_points) {
xProbe = points[abl_probe_index].x;
yProbe = points[abl_probe_index].y;
_manual_goto_xy(xProbe, yProbe);
@ -661,9 +666,9 @@ void GcodeSuite::G29() {
mean += measured_z;
eqnBVector[abl_probe_index] = measured_z;
eqnAMatrix[abl_probe_index + 0 * abl2] = xProbe;
eqnAMatrix[abl_probe_index + 1 * abl2] = yProbe;
eqnAMatrix[abl_probe_index + 2 * abl2] = 1;
eqnAMatrix[abl_probe_index + 0 * abl_points] = xProbe;
eqnAMatrix[abl_probe_index + 1 * abl_points] = yProbe;
eqnAMatrix[abl_probe_index + 2 * abl_points] = 1;
incremental_LSF(&lsf_results, xProbe, yProbe, measured_z);
@ -771,7 +776,7 @@ void GcodeSuite::G29() {
plane_equation_coefficients[1] = -lsf_results.B; // but that is not yet tested.
plane_equation_coefficients[2] = -lsf_results.D;
mean /= abl2;
mean /= abl_points;
if (verbose_level) {
SERIAL_PROTOCOLPGM("Eqn coefficients: a: ");
@ -815,8 +820,8 @@ void GcodeSuite::G29() {
for (uint8_t xx = 0; xx < abl_grid_points_x; xx++) {
int ind = indexIntoAB[xx][yy];
float diff = eqnBVector[ind] - mean,
x_tmp = eqnAMatrix[ind + 0 * abl2],
y_tmp = eqnAMatrix[ind + 1 * abl2],
x_tmp = eqnAMatrix[ind + 0 * abl_points],
y_tmp = eqnAMatrix[ind + 1 * abl_points],
z_tmp = 0;
apply_rotation_xyz(planner.bed_level_matrix, x_tmp, y_tmp, z_tmp);
@ -839,8 +844,8 @@ void GcodeSuite::G29() {
for (int8_t yy = abl_grid_points_y - 1; yy >= 0; yy--) {
for (uint8_t xx = 0; xx < abl_grid_points_x; xx++) {
int ind = indexIntoAB[xx][yy];
float x_tmp = eqnAMatrix[ind + 0 * abl2],
y_tmp = eqnAMatrix[ind + 1 * abl2],
float x_tmp = eqnAMatrix[ind + 0 * abl_points],
y_tmp = eqnAMatrix[ind + 1 * abl_points],
z_tmp = 0;
apply_rotation_xyz(planner.bed_level_matrix, x_tmp, y_tmp, z_tmp);