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AP_Param: add convert_bitmask_parameter_width method

This commit is contained in:
Iampete1 2024-04-16 19:23:22 +01:00 committed by Peter Hall
parent 26ec2ae952
commit cd0bdda93d
2 changed files with 56 additions and 7 deletions
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38
libraries/AP_Param/AP_Param.cpp
View File

@ -2099,7 +2099,7 @@ void AP_Param::convert_toplevel_objects(const TopLevelObjectConversion conversio
convert width of a parameter, allowing update to wider scalar values
without changing the parameter indexes
*/
bool AP_Param::convert_parameter_width(ap_var_type old_ptype, float scale_factor)
bool AP_Param::_convert_parameter_width(ap_var_type old_ptype, float scale_factor, bool bitmask)
{
if (configured_in_storage()) {
// already converted or set by the user
@ -2143,11 +2143,47 @@ bool AP_Param::convert_parameter_width(ap_var_type old_ptype, float scale_factor
AP_Param *old_ap = (AP_Param *)&old_value[0];
if (!bitmask) {
// Numeric conversion
// going via float is safe as the only time we would be converting
// from AP_Int32 is when converting to float
float old_float_value = old_ap->cast_to_float(old_ptype);
set_value(new_ptype, this, old_float_value*scale_factor);
} else {
// Bitmask conversion, go via uint32
// int8 -1 should convert to int16 255
uint32_t mask;
switch (old_ptype) {
case AP_PARAM_INT8:
mask = (uint8_t)(*(AP_Int8*)old_ap);
break;
case AP_PARAM_INT16:
mask = (uint16_t)(*(AP_Int16*)old_ap);
break;
case AP_PARAM_INT32:
mask = (uint32_t)(*(AP_Int32*)old_ap);
break;
default:
return false;
}
switch (new_ptype) {
case AP_PARAM_INT8:
((AP_Int8 *)this)->set(mask);
break;
case AP_PARAM_INT16:
((AP_Int16 *)this)->set(mask);
break;
case AP_PARAM_INT32:
((AP_Int32 *)this)->set(mask);
break;
default:
return false;
}
}
// force save as the new type
save(true);

15
libraries/AP_Param/AP_Param.h
View File

@ -495,10 +495,16 @@ public:
values without changing the parameter indexes. This will return
true if the parameter was converted from an old parameter value
*/
bool convert_parameter_width(ap_var_type old_ptype, float scale_factor=1.0);
bool convert_parameter_width(ap_var_type old_ptype, float scale_factor=1.0) {
return _convert_parameter_width(old_ptype, scale_factor, false);
}
bool convert_centi_parameter(ap_var_type old_ptype) {
return convert_parameter_width(old_ptype, 0.01f);
}
// Converting bitmasks should be done bitwise rather than numerically
bool convert_bitmask_parameter_width(ap_var_type old_ptype) {
return _convert_parameter_width(old_ptype, 1.0, true);
}
// convert a single parameter with scaling
enum {
@ -785,6 +791,13 @@ private:
// return true if the parameter is configured in EEPROM/FRAM
bool configured_in_storage(void) const;
/*
convert width of a parameter, allowing update to wider scalar
values without changing the parameter indexes. This will return
true if the parameter was converted from an old parameter value
*/
bool _convert_parameter_width(ap_var_type old_ptype, float scale_factor, bool bitmask);
// send a parameter to all GCS instances
void send_parameter(const char *name, enum ap_var_type param_header_type, uint8_t idx) const;