X-Git-Url: http://git.cielonegro.org/gitweb.cgi?p=EsounD.git;a=blobdiff_plain;f=Sound%2FEsounD%2FInternals.hs;h=ef8c659ddd104d0646b9ca770800b6fcf2ab3f48;hp=4c450361571e15fd54e7c14ce562f056c0d84b08;hb=bb3dbc2442352e09bafe4415d3784f7f61230b17;hpb=8af725c0cc839ad2493fa17d29ca6becaeb9f600 diff --git a/Sound/EsounD/Internals.hs b/Sound/EsounD/Internals.hs index 4c45036..ef8c659 100644 --- a/Sound/EsounD/Internals.hs +++ b/Sound/EsounD/Internals.hs @@ -2,7 +2,6 @@ EmptyDataDecls , FlexibleInstances , MultiParamTypeClasses - , TypeFamilies , UnicodeSyntax #-} module Sound.EsounD.Internals @@ -11,8 +10,7 @@ module Sound.EsounD.Internals , Channels(..) , Mono , Stereo - - , Mux(..) + , interleave , wrapSocket , closeSocket @@ -42,37 +40,26 @@ instance Frame Int16 where class Channels ch where channelFmt ∷ ch → C'esd_format_t -class (Frame fr, Channels ch) ⇒ Mux (vec ∷ ★ → ★) fr ch where - type DemuxedVec vec fr ch - mux ∷ DemuxedVec vec fr ch → vec fr - -- Mono data Mono instance Channels Mono where channelFmt _ = c'ESD_MONO -instance Frame fr ⇒ Mux vec fr Mono where - type DemuxedVec vec fr Mono = vec fr - mux = id - -- Stereo data Stereo instance Channels Stereo where channelFmt _ = c'ESD_STEREO -instance Frame fr ⇒ Mux L.Vector fr Stereo where - type DemuxedVec L.Vector fr Stereo = (L.Vector fr, L.Vector fr) - mux (left, right) = loop left right - where - -- THINKME: consider using storablevector-streamfusion - loop l r - = let Just (lFr, l') = L.viewL l - Just (rFr, r') = L.viewL r - lr' = loop l' r' - in - L.cons lFr (L.cons rFr lr') +interleave ∷ Frame fr ⇒ L.Vector fr → L.Vector fr → L.Vector fr +interleave l r + -- THINKME: consider using storablevector-streamfusion + = let Just (lFr, l') = L.viewL l + Just (rFr, r') = L.viewL r + lr' = interleave l' r' + in + L.cons lFr (L.cons rFr lr') -- Utility functions wrapSocket ∷ String → CInt → IO Handle