{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE Rank2Types #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE UndecidableInstances #-}
module Synthesizer.LLVM.Filter.SecondOrderPacked (
Parameter, ParameterExp, bandpassParameter, State, causal,
) where
import qualified Synthesizer.LLVM.Filter.SecondOrder as Filt2L
import qualified Synthesizer.Plain.Filter.Recursive.SecondOrder as Filt2
import qualified Synthesizer.LLVM.Causal.Private as Causal
import qualified LLVM.DSL.Expression as Expr
import LLVM.DSL.Expression (Exp(Exp))
import qualified LLVM.Extra.Multi.Value.Marshal as Marshal
import qualified LLVM.Extra.Multi.Value as MultiValue
import qualified LLVM.Extra.Multi.Vector as MultiVector
import qualified LLVM.Extra.Tuple as Tuple
import qualified LLVM.Extra.Memory as Memory
import qualified LLVM.Extra.Arithmetic as A
import qualified LLVM.Core as LLVM
import Type.Data.Num.Decimal (D4, d0, d1)
import Control.Applicative (liftA2)
import NumericPrelude.Numeric
import NumericPrelude.Base
data Parameter a = Parameter (MultiValue.T a) (MultiVector.T D4 a)
instance (MultiVector.C a) => Tuple.Phi (Parameter a) where
phi bb (Parameter r i) = do
r' <- Tuple.phi bb r
i' <- Tuple.phi bb i
return (Parameter r' i')
addPhi bb (Parameter r i) (Parameter r' i') = do
Tuple.addPhi bb r r'
Tuple.addPhi bb i i'
instance (MultiVector.C a) => Tuple.Undefined (Parameter a) where
undef = Parameter Tuple.undef Tuple.undef
type ParameterStruct a = Memory.Struct (MultiValue.T a, MultiVector.T D4 a)
parameterMemory ::
(Marshal.C a, Marshal.Vector D4 a) =>
Memory.Record r (ParameterStruct a) (Parameter a)
parameterMemory =
liftA2 Parameter
(Memory.element (\(Parameter c0 _) -> c0) d0)
(Memory.element (\(Parameter _ cd) -> cd) d1)
instance (Marshal.C a, Marshal.Vector D4 a) => Memory.C (Parameter a) where
type Struct (Parameter a) = ParameterStruct a
load = Memory.loadRecord parameterMemory
store = Memory.storeRecord parameterMemory
decompose = Memory.decomposeRecord parameterMemory
compose = Memory.composeRecord parameterMemory
data ParameterExp a =
ParameterExp (forall r. LLVM.CodeGenFunction r (Parameter a))
instance Expr.Aggregate (ParameterExp a) (Parameter a) where
type MultiValuesOf (ParameterExp a) = Parameter a
type ExpressionsOf (Parameter a) = ParameterExp a
dissect x = ParameterExp (return x)
bundle (ParameterExp code) = code
type State = MultiVector.T D4
{-# DEPRECATED bandpassParameter "only for testing, use Universal or Moog filter for production code" #-}
bandpassParameter ::
(MultiVector.C a, MultiValue.Transcendental a,
MultiValue.RationalConstant a) =>
Exp a -> Exp a -> ParameterExp a
bandpassParameter (Exp reson) (Exp cutoff) =
ParameterExp (do
r <- reson
c <- cutoff
bandpassParameterCode r c)
bandpassParameterCode ::
(MultiVector.C a, MultiValue.Transcendental a,
MultiValue.RationalConstant a) =>
MultiValue.T a ->
MultiValue.T a ->
LLVM.CodeGenFunction r (Parameter a)
bandpassParameterCode reson cutoff = do
p <- Filt2L.bandpassParameterCode reson cutoff
v <-
MultiVector.assembleFromVector $ fmap ($ p) $
LLVM.consVector Filt2.c1 Filt2.d1 Filt2.c2 Filt2.d2
return $ Parameter (Filt2.c0 p) v
next ::
(MultiVector.PseudoRing a) =>
(Parameter a, MultiValue.T a) ->
State a ->
LLVM.CodeGenFunction r (MultiValue.T a, State a)
next (Parameter c0 k1, x0) y1 = do
s0 <- A.mul c0 x0
s1 <- MultiVector.dotProduct k1 y1
y0 <- A.add s0 s1
x1new <- MultiVector.extract (LLVM.valueOf 0) y1
y1new <- MultiVector.extract (LLVM.valueOf 1) y1
yv <- MultiVector.assembleFromVector $ LLVM.consVector x0 y0 x1new y1new
return (y0, yv)
causal ::
(MultiVector.PseudoRing a) =>
(Marshal.Vector D4 a) =>
Causal.T (Parameter a, MultiValue.T a) (MultiValue.T a)
causal = Causal.mapAccum next (return A.zero)