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/iscl64.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 sys/osb/iscl64.c (limited to 'sys/osb/iscl64.c') diff --git a/sys/osb/iscl64.c b/sys/osb/iscl64.c new file mode 100644 index 00000000..6a8b624c --- /dev/null +++ b/sys/osb/iscl64.c @@ -0,0 +1,31 @@ +/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + */ + +#define import_spp +#define import_knames +#include +#include + + +/* ISCL64 - Scale a pixel array stored as SPP chars to the desired type. + */ +ISCL64 (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; + double *dp = (double *) calloc (*npix, sizeof (double)); + double *tmp; + + tmp = dp; + for (i=0; i < *npix; i++) { + pix = *ip; + *tmp = (double) (pix * (*bscale) + (*bzero)); + tmp++, ip++; + } + + memmove (b, dp, (*npix * sizeof (double))); +} -- cgit