From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/osb/iscl32.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 sys/osb/iscl32.c (limited to 'sys/osb/iscl32.c') diff --git a/sys/osb/iscl32.c b/sys/osb/iscl32.c new file mode 100644 index 00000000..75e51082 --- /dev/null +++ b/sys/osb/iscl32.c @@ -0,0 +1,31 @@ +/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + */ + +#define import_spp +#define import_knames +#include +#include + + +/* ISCL32 - Scale a pixel array stored as SPP chars to the desired type. + */ +ISCL32 (a, b, npix, bscale, bzero) +XCHAR *a; /* input array */ +XCHAR *b; /* output array */ +XINT *npix; /* number of bytes to swap */ +XDOUBLE *bscale, *bzero; /* scaling factors */ +{ + int i, pix; + int *ip = (int *) a; + float *rp = (float *) calloc (*npix, sizeof (float)); + float *tmp; + + tmp = rp; + for (i=0; i < *npix; i++) { + pix = *ip; + *tmp = (float) (pix * (*bscale) + (*bzero)); + tmp++, ip++; + } + + memmove (b, rp, (*npix * sizeof (float))); +} -- cgit