Old and new strings are compared before sending to keep traffic down. To
ensure that we send all the required characters be sure to init the last
value to characters that are never going to appear in a real string.
Space is a bad choice since it is a valid character. Use NUL instead.
The device info file allows key names and values to be configured in each
device file. Use that information when building the Functions Keys tab in
the Mackie protocol setup dialog.
While surfaces are being created it is possible to have surfaces, but
not have a master surface yet. This happens when the config calls
for extenders to the left of the master section. Don't assume that
if we have surfaces, the master surface is available.
This resolves a PBD vs ARDOUR namespace error for some compilers:
```
error: reference to 'microseconds_t' is ambiguous
libs/pbd/pbd/microseconds.h:29:19: error: candidates are: typedef uint64_t PBD::microseconds_t
libs/ardour/ardour/types.h:81:29: error: typedef PBD::microseconds_t ARDOUR::microseconds_t
```
If the wrong device profile is selected (ex Xtouch One) but another device
is connected (Xtouch), it is possible to have a master fader on the
device, but not in the code. This would then cause a crash when the
master fader was touched.
This just protects from a wrong configuration.
In some cases old and/or conflicting port names were saved
with the session (e.g. "Faderport" for FP1,8). Loading old sessions
then merges this state into the config, which could lead to
port-registration failure when the surfaces was enabled.
Follow Session::setup_bundles() lead for single channel
MIDI bundles. This cleans-up the port-matrix display and
removes redundant names. The underlying engine port-name
is not of interest to the user.
Main features: Plugin (Select & Edit)
1. Plugin Select: When a track is selected that has PluginInserts, pushing the "Plug-In" button on a mackie will list these across the strips. Clicking a vpot of a strip enables editing the parameters of this selected plugin.
2. Plugin Edit: When a Plugin is selected for editing, the input parameters of the plugin are shown across the channel strips and the vpot is assigned the corresponsing AutomationControl for the parameter.
Minor features
- When the number of plugins or the number of parameters exceeds the number of strips available on the surface, one can flip through "pages" of views using the Cursor Left and Right keys (this logic I took from http://www.emagic.de/media/support/content/manuals/LogicControl_en.pdf)
- When in the Plugin Select mode, rearranging the plugins in the mixer strip is reflected on the surface.
- When in Plugin Edit mode, rearranging the plugins in the mixer strip still retains the edit view of the selected plugin (rearranging does not take away the current subview)
- When removing a plugin in the mixer strip, this is reflected in Plugin Select, while the view jumps to Pan/Surround (the None subview) when in Plugin Edit mode.
- Removing a track resets the subview to None
- When in a Subview that is track-specific (Track, EQ, Send, Plug-In, Inst), selecting a different track retains the subview but updates the channel displays and vpot assignments accordingly. When in Plugin Edit mode for track A, and track B is selected, it changes to Plugin Select mode for track B (if plugins are present).
