Files
lmms/plugins/Monstro
Michael Gregorius c2f2b7e0d7 Handle divisions by 0 in Lb302 and Monstro (#7021)
* Handle divisions by 0 in Lb302

Handle potential division by 0 which in turn lead to floating point exceptions in Lb302. The division can occur in the `process` method if it is called with the member `vco_inc` still initialized to 0. This seems to happen then the Lb302 processes with no notes actually being played.

The offending call is `BandLimitedWave::pdToLen(vco_inc)` which is now prevented when the increment is 0. In the latter case a sample of 0 is produced. This works because in all other cases the Lb302 instance should process a note which in turn sets the increments to something different from 0.

* Fix FPEs in Monstro

Fix some floating point exceptions in `MonstroSynth::renderOutput` that occurred due to calling `BandLimitedWave::pdToLen` with a value of 0. This happened when one of the phase deltas was set to 0, i.e. `pd_l` or `pd_r`. These cases are now checked and produce silence in the corresponding components if the phase delta is set to 0.

* Fix uninitialized variables

Initialize the local variables `len_l` and `len_r` to 0. This fixes compiler warnings a la "error: 'len_r' may be used uninitialized in this function" which are treated as errors on the build server.

* Adjust whitespace of touched code
2024-01-03 17:01:28 +01:00
..
2023-08-24 19:16:02 +01:00