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flow_doc.md : Updates

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kevin 2024-05-21 18:53:21 -04:00
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@ -266,3 +266,32 @@ variables based on the number of input audio channels cannot know how many outpu
it may need until it accesses the number of audio channels it has been instantiated with.
# Applying Dual Presets
- When the network is instantiated the 'network-preset-pair' table is created.
This table has an entry for every proc/variable/channel instance in the network.
- When the preset preset-value lists are created the associated 'pair'
record is found in the 'network-preset-pair' table and stored in the preset-value
`pairTblIdx` field.
To apply a dual preset.
1. The preset-value list for the two presets are located.
2. The network-preset-pair value field is set to NULL.
3. The value associated with every preset-value in the secondary preset
is assigned to the associated 'value' field in the preset-pair-table.
The preset-pair record is found via a fast lookup using the `pairTblIdx` field.
4. For every preset-value in the primary preset-value list the matching
entry is found in the preset-pair-table. This is done via a fast lookup
using the `pairTblIdx` field.
5. If the preset-pair record value field is non-NULL then the primary preset-value's
value field is then interpolated with the preset-pair record value field
the associated network variable is set.
6. If the preset-pair record value field is NULL then the primary preset-value
is used to set the associated network variable.