New pull request: Basic VST plugin support

[nor...@wahjam.org]

Please review the pull request #81.

https://github.com/wahjam/wahjam/pull/81 was opened by (stefanha): Basic VST plugin support

Some more information about the pull request:
Opened: 2013-01-12T09:19:26Z
Based on: wahjam:master (bb795abcb45f0803d8ebf0b5c55a0c92e75381b7)
Requested merge: stefanha:vst (3c5ed23d514fa41015b9801b847105bea856068d)

Description:

This patch series adds support for VST plugins. The user can load one or more plugins into an effects chain. For example, a software amplifier followed by a reverb.

To use this feature, select "File" | "Configure VST..." from the menu.

Tested the following native Windows plugins: S-Gear 2, GuitarRig 5, and Amplitube 3. Also tested native Linux plugins.

I do not have access to the Steinberg VST SDK or docs due to its GPL-incompatible license. Hopefully my host implementation is reasonably correct.

Known issues with LePou's LeCab2 (crash). Please report bugs if plugins crash.

Limitations:
* VSTi instruments are not supported because Wahjam currently lacks MIDI support.
* Mono only because Wahjam does not support stereo channels yet.

Thanks.