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refactor: clean up faustlpf plugin Nim code a bit 

Signed-off-by: Christopher Arndt <chris@chrisarndt.de>
This commit is contained in:
Christopher Arndt 2024-09-29 16:33:18 +02:00
parent 4dcfd1abdb
commit f40df2491e
1 changed files with 16 additions and 17 deletions
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31
examples/faustlpf_plugin.nim
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@ -2,24 +2,21 @@
import nymph
{.emit: "#include \"lpf.h\"".}
const
PluginUri = "urn:nymph:examples:faustlpf"
minFreq = 16.0
maxFreq = 15_000.0
type
SampleBuffer = UncheckedArray[cfloat]
{.emit: "#include \"lpf.h\"".}
type
faustlpf {.importc, header: "lpf.h".} = object
# struct field, which represents the value of the
# FAUST UI element, which controls the cutoff
fHslider0: cfloat
proc newfaustlpf(): ptr faustlpf {.importc.}
proc deletefaustlpf(dsp: ptr faustlpf) {.importc.}
proc initfaustlpf(dsp: ptr faustlpf, sample_rate: cint) {.importc.}
proc instanceClearfaustlpf(dsp: ptr faustlpf) {.importc.}
#proc getNumInputsmydsp(dsp: ptr faustlpf): cint {.importc.}
#proc getNumOutputsmydsp(dsp: ptr faustlpf): cint {.importc.}
#proc getSampleRatefaustlpf(dsp: ptr faustlpf): cint {.importc.}
proc computefaustlpf(dsp: ptr faustlpf, count: cint, inputs, outputs: ptr ptr SampleBuffer) {.importc.}
type
PluginPort {.pure.} = enum
Input, Output, Frequency
@ -30,10 +27,12 @@ type
flt: ptr faustlpf
const
PluginUri = "urn:nymph:examples:faustlpf"
minFreq = 16.0
maxFreq = 15_000.0
# wrap only those functions from the C code, which we actually need
proc newfaustlpf(): ptr faustlpf {.importc.}
proc deletefaustlpf(dsp: ptr faustlpf) {.importc.}
proc initfaustlpf(dsp: ptr faustlpf, sample_rate: cint) {.importc.}
proc instanceClearfaustlpf(dsp: ptr faustlpf) {.importc.}
proc computefaustlpf(dsp: ptr faustlpf, count: cint, inputs, outputs: ptr ptr SampleBuffer) {.importc.}
proc instantiate(descriptor: ptr Lv2Descriptor; sampleRate: cdouble;