Simplify preset number to string, reduce code redundancy

freeDSP / freeDSP-aurora

freeDSP ADAU1452 with 8 analog input, 8 analog outputs, S/P-DIF I/O, ADAT I/O, USB Audio Class2, WiFi, Bluetooth

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Closed zas closed 2 years ago

zas commented 2 years ago

currentPreset is always in 0..MAX_NUM_PRESETS-1 range, so case default isn't needed
since it starts at 0, it can be used as an array index
if MAX_NUM_PRESETS is increased, the array will too, but the label will be a null string
if MAX_NUM_PRESETS is decreased, the definition will error at compilation time

zas commented 2 years ago