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| author | Robin Gareus <robin@gareus.org> | 2016-04-06 03:12:01 +0200 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2016-04-06 03:12:01 +0200 |
| commit | 1c3c1055747b93da3d620cfc9adfd573e72dc07f (patch) | |
| tree | 925405d7e1ffe62cf62b3432e55765e2e6267db4 /scripts/scope.lua | |
| parent | 342422203d11f89d574bf38fd9c8221de3489970 (diff) | |
| download | ardour-1c3c1055747b93da3d620cfc9adfd573e72dc07f.zip ardour-1c3c1055747b93da3d620cfc9adfd573e72dc07f.tar.gz ardour-1c3c1055747b93da3d620cfc9adfd573e72dc07f.tar.bz2 | |
lua-scope handle unconnected in-place buffers
Diffstat (limited to 'scripts/scope.lua')
| -rw-r--r-- | scripts/scope.lua | 35 |
1 files changed, 27 insertions, 8 deletions
diff --git a/scripts/scope.lua b/scripts/scope.lua index 32881fe..1644419 100644 --- a/scripts/scope.lua +++ b/scripts/scope.lua @@ -42,8 +42,6 @@ end function dsp_configure (ins, outs) -- store configuration in global variable audio_ins = ins:n_audio () - local audio_outs = outs:n_audio () - assert (audio_ins == audio_outs) -- allocate shared memory area -- this is used to speed up DSP computaton (using a C array) -- and to share data with the GUI @@ -63,14 +61,35 @@ function dsp_runmap (bufs, in_map, out_map, n_samples, offset) for c = 1,audio_ins do -- Note: lua starts counting at 1, ardour's ChanMapping::get() at 0 local ib = in_map:get (ARDOUR.DataType ("audio"), c - 1); -- get id of mapped input buffer for given cannel - assert (ib ~= ARDOUR.ChanMapping.Invalid) + local ob = out_map:get (ARDOUR.DataType ("audio"), c - 1); -- get id of mapped output buffer for given cannel local chn_off = 4 + bufsiz * (c - 1) - if (write_ptr + n_samples < bufsiz) then - ARDOUR.DSP.copy_vector (shmem:to_float (write_ptr + chn_off), bufs:get_audio (ib):data (offset), n_samples) + if (ib ~= ARDOUR.ChanMapping.Invalid) then + if (write_ptr + n_samples < bufsiz) then + ARDOUR.DSP.copy_vector (shmem:to_float (write_ptr + chn_off), bufs:get_audio (ib):data (offset), n_samples) + else + local w0 = bufsiz - write_ptr; + ARDOUR.DSP.copy_vector (shmem:to_float (write_ptr + chn_off), bufs:get_audio (ib):data (offset), w0) + ARDOUR.DSP.copy_vector (shmem:to_float (chn_off) , bufs:get_audio (ib):data (offset), n_samples - w0) + end + if (ob ~= ARDOUR.ChanMapping.Invalid and ib ~= ob) then + ARDOUR.DSP.copy_vector (bufs:get_audio (ob):data (offset), bufs:get_audio (ib):data (offset), n_samples) + end else - local w0 = bufsiz - write_ptr; - ARDOUR.DSP.copy_vector (shmem:to_float (write_ptr + chn_off), bufs:get_audio (ib):data (offset), w0) - ARDOUR.DSP.copy_vector (shmem:to_float (chn_off) , bufs:get_audio (ib):data (offset), n_samples - w0) + if (write_ptr + n_samples < bufsiz) then + ARDOUR.DSP.memset (shmem:to_float (write_ptr + chn_off), 0, n_samples) + else + local w0 = bufsiz - write_ptr; + ARDOUR.DSP.memset (shmem:to_float (write_ptr + chn_off), 0, w0) + ARDOUR.DSP.memset (shmem:to_float (chn_off) , 0, n_samples - w0) + end + end + end + -- clear unconnected inplace buffers + for c = 1,audio_ins do + local ib = in_map:get (ARDOUR.DataType ("audio"), c - 1); -- get id of mapped input buffer for given cannel + local ob = out_map:get (ARDOUR.DataType ("audio"), c - 1); -- get id of mapped output buffer for given cannel + if (ib == ARDOUR.ChanMapping.Invalid and ob ~= ARDOUR.ChanMapping.Invalid) then + bufs:get_audio (ob):silence (n_samples, offset) end end |