Age | Commit message (Collapse) | Author |
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When allowing to cross-connect plugin-ports, inplace processing can
no longer be used. We need a complete set of independent input and
output buffers.
Since scratch and silent buffers are used by the various plugin
implementations we cannot re-use them in the PluginInsert.
Besides we need a complete BufferSet which can hold both: ins + outs.
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Paul Davis was responsible for introducing almost all of this.
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This is needed for gain and pan automation buffers
as well as silent and scratch buffers when bouncing or
exporting with larger chunk size than the current engine
period.
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"scratch buffers are by definition scratch and their contents are undefined at all times"
"silent buffers are by definition all-zero and should not be used for real data"
But track & route were using those for actual data; plugins (which may run
in the same thread and may get the same buffers) use them for scratch thereby
overwriting real data.
In particular get_silent_buffers() (used by LadspaPlugin::connect_and_run)
clears the buffer which can holds real data:
e.g. via Route::passthru_silence() -> plugin1 -> plugin2 (clears output of plugin1)
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git-svn-id: svn://localhost/ardour2/branches/3.0@13864 d708f5d6-7413-0410-9779-e7cbd77b26cf
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git-svn-id: svn://localhost/ardour2/branches/3.0@13084 d708f5d6-7413-0410-9779-e7cbd77b26cf
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git-svn-id: svn://localhost/ardour2/branches/3.0@12650 d708f5d6-7413-0410-9779-e7cbd77b26cf
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fault :D
git-svn-id: svn://localhost/ardour2/branches/3.0@9654 d708f5d6-7413-0410-9779-e7cbd77b26cf
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git-svn-id: svn://localhost/ardour2/branches/3.0@8166 d708f5d6-7413-0410-9779-e7cbd77b26cf
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separately from session in preparation for parallelization. lots of debug output at present. If using JACK1, requires a very current version of JACK1 SVN (0.119.0)
git-svn-id: svn://localhost/ardour2/branches/3.0@6888 d708f5d6-7413-0410-9779-e7cbd77b26cf
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