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/*
ugens9.h:
Copyright (C) 1996 Greg Sullivan
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
/* UGENS9.H */
typedef struct {
OPDS h;
MYFLT *ar1,*ar2,*ar3,*ar4,*ain,*ifilno,*channel;
MEMFIL *mfp;
int32 Hlen, Hlenpadded,incount,outcnt,obufsiz;
int32_t nchanls; /* number of channels we are actually processing */
MYFLT *H,*cvlut,*outhead,*outail,*obufend;
AUXCH auxch; /* use AUXDS to manage the following buffer spaces */
MYFLT *fftbuf; /* [Hlenpadded + 2] (general FFT working buffer) */
MYFLT *olap; /* [(Hlen - 1) * nchnls] (samples to overlap on next run) */
MYFLT *outbuf; /* (to store output audio if
((Hlen > ksmps) && !(multiple of ksmps)), or
((Hlen < ksmps) && !(submultiple of ksmps)) */
MYFLT *X; /* [Hlenpadded + 2] (holds transform of input audio -
only required for multi-channel output) */
void *fwdsetup, *invsetup; /* setup for FFT */
} CONVOLVE;
typedef struct {
OPDS h;
MYFLT *ar1, *ar2, *ar3, *ar4, *ain,*ifilno,*partitionSize,*channel;
int32 numPartitions;
int32 Hlen, Hlenpadded;
int32_t nchanls; /* number of channels we are actually processing */
AUXCH H; /* array of Impulse Responses */
AUXCH savedInput; /* the last Hlen input samps for overlap-save method */
int32 inCount; /* index to write to savedInput */
AUXCH workBuf; /* work buf for current partion convolution */
MYFLT *workWrite; /* current index for writing input samps */
AUXCH convBuf; /* circular buf accumulating partitioned convolutions */
int32 curPart; /* "current" segment in convBuf */
AUXCH output; /* circular buf accumulating output samples */
int32 outBufSiz; /* hlenpadded or 2*ksmps, whichever is greater */
MYFLT *outWrite, *outRead; /* i/o pointers to the output buf */
int32 outCount; /* number of valid samples in the outbuf */
void *fwdsetup, *invsetup; /* setup for FFT */
} PCONVOLVE;
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