int
mbbs_mr1_xdrpnghdrv1(Ping *png, XDR *xdrs)
/*
Internal routine.
Does XDR decoding of an MR1 version 1 ping header.
Returns 1 if successful, 0 otherwise.
*/
{
int tvsec, tvusec;
unsigned long sidebc;
int mr1_xdrsidev1(PingSide *, XDR *, unsigned long *);
bs_iobytecnt= 0;
/* output in obsolete format not allowed! */
if (xdrs->x_op == XDR_ENCODE)
return 0;
if (!bs_ionaninit) {
bs_ionanf= mbbs_nanf();
bs_ionand= mbbs_nand();
bs_ionaninit= 1;
}
png->png_flags= PNG_BTYSSFLAGSABSENT;
/* depending upon the platform, the size of the timeval
struct's fields may be 4 or 8 bytes; for backward
compatibility with old files that use 4-byte fields,
we use 4-byte primitives */
if (!xdr_int(xdrs, &tvsec))
return 0;
bs_iobytecnt+= 4;
png->png_tm.tv_sec= tvsec;
if (!xdr_int(xdrs, &tvusec))
return 0;
bs_iobytecnt+= 4;
png->png_tm.tv_usec= tvusec;
png->png_period= bs_ionanf;
png->png_slon= bs_ionand;
png->png_slat= bs_ionand;
png->png_scourse= bs_ionanf;
png->png_laybackrng= bs_ionanf;
png->png_laybackbrg= bs_ionanf;
if (!xdr_double(xdrs, &(png->png_tlon)))
return 0;
bs_iobytecnt+= 8;
if (!xdr_double(xdrs, &(png->png_tlat)))
return 0;
bs_iobytecnt+= 8;
if (!xdr_float(xdrs, &(png->png_tcourse)))
return 0;
bs_iobytecnt+= 4;
png->png_compass.sns_int= bs_ionanf;
png->png_compass.sns_nsamps= 0;
if (!xdr_float(xdrs, &(png->png_compass.sns_repval)))
return 0;
bs_iobytecnt+= 4;
png->png_depth.sns_int= bs_ionanf;
png->png_depth.sns_nsamps= 0;
if (!xdr_float(xdrs, &(png->png_depth.sns_repval)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_alt)))
return 0;
bs_iobytecnt+= 4;
png->png_pitch.sns_int= bs_ionanf;
png->png_pitch.sns_nsamps= 0;
if (!xdr_float(xdrs, &(png->png_pitch.sns_repval)))
return 0;
bs_iobytecnt+= 4;
png->png_roll.sns_int= bs_ionanf;
png->png_roll.sns_nsamps= 0;
if (!xdr_float(xdrs, &(png->png_roll.sns_repval)))
return 0;
bs_iobytecnt+= 4;
png->png_snspad= 0;
if (!xdr_float(xdrs, &(png->png_temp)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_ssincr)))
return 0;
bs_iobytecnt+= 4;
png->png_ssyoffsetmode= PNG_SSYOM_UNKNOWN;
png->png_magcorr= bs_ionanf;
png->png_sndvel= bs_ionanf;
png->png_cond= bs_ionanf;
png->png_magx= bs_ionanf;
png->png_magy= bs_ionanf;
png->png_magz= bs_ionanf;
if (!mr1_xdrsidev1(&(png->png_sides[ACP_PORT]), xdrs, &sidebc))
return 0;
bs_iobytecnt+= sidebc;
png->png_sides[ACP_PORT].ps_bdrange= png->png_alt;
png->png_sides[ACP_PORT].ps_ssndrmask= 0.;
png->png_sides[ACP_PORT].ps_ssyoffset= bs_ionanf;
if (!mr1_xdrsidev1(&(png->png_sides[ACP_STBD]), xdrs, &sidebc))
return 0;
bs_iobytecnt+= sidebc;
png->png_sides[ACP_STBD].ps_bdrange= png->png_alt;
png->png_sides[ACP_STBD].ps_ssndrmask= 0.;
png->png_sides[ACP_STBD].ps_ssyoffset= bs_ionanf;
return 1;
}
int
mbbs_xdrpnghdr(Ping *png, XDR *xdrs, int version)
/*
Internal routine.
Does XDR encoding and decoding of a BS ping header.
Returns 1 if successful, 0 otherwise.
*/
{
unsigned int flags;
int tvsec, tvusec;
unsigned long sidebc;
int mbbs_xdrside(PingSide *, XDR *, int, unsigned long *);
switch (version) {
case BS_VERSION_1_0:
case BS_VERSION_1_1:
case BS_VERSION_1_2:
case BS_VERSION_1_3:
/* output in obsolete format not allowed! */
if (xdrs->x_op == XDR_ENCODE)
return 0;
break;
case BS_VERSION_1_4:
break;
default:
return 0;
}
bs_iobytecnt= 0;
if (!bs_ionaninit) {
bs_ionanf= mbbs_nanf();
bs_ionand= mbbs_nand();
bs_ionaninit= 1;
}
/* always clear the PNG_BTYSSFLAGSABSENT bit when writing
since all current format output files are guaranteed to
include bathymetry and sidescan flags -- this bit should
normally be set only by I/O functions from this library
when reading flagless older format version files */
if (xdrs->x_op == XDR_ENCODE) {
flags= png->png_flags;
flags&= ~PNG_BTYSSFLAGSABSENT;
}
if (!xdr_u_int(xdrs, &flags))
return 0;
bs_iobytecnt+= 4;
if (xdrs->x_op == XDR_DECODE)
png->png_flags= flags;
/* depending upon the platform, the size of the timeval
struct's fields may be 4 or 8 bytes; for backward
compatibility with old files that use 4-byte fields,
we force these quantities into 4-byte primitives when
doing output, returning an error when overflow would result */
if (xdrs->x_op == XDR_ENCODE) {
if (((long) png->png_tm.tv_sec < INT32_MIN) ||
((long) png->png_tm.tv_sec > INT32_MAX))
return 0;
/* on some platforms where tv_usec is 4 bytes (e.g., mac_x8664
under MacOS 10.7) the following may generate a compiler
warning about an invalid comparison -- it's probably best to
leave this as is rather than code around this unusual size
and risk failure in the future if it's ever increased */
if ((sizeof png->png_tm.tv_usec > 4) &&
(((long) png->png_tm.tv_usec < INT32_MIN) ||
((long) png->png_tm.tv_usec > INT32_MAX)))
return 0;
tvsec= (int) png->png_tm.tv_sec;
tvusec= (int) png->png_tm.tv_usec;
}
if (!xdr_int(xdrs, &tvsec))
return 0;
bs_iobytecnt+= 4;
if (!xdr_int(xdrs, &tvusec))
return 0;
bs_iobytecnt+= 4;
if (xdrs->x_op == XDR_DECODE) {
png->png_tm.tv_sec= tvsec;
png->png_tm.tv_usec= tvusec;
}
if (!xdr_float(xdrs, &(png->png_period)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_double(xdrs, &(png->png_slon)))
return 0;
bs_iobytecnt+= 8;
if (!xdr_double(xdrs, &(png->png_slat)))
return 0;
bs_iobytecnt+= 8;
if (!xdr_float(xdrs, &(png->png_scourse)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_laybackrng)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_laybackbrg)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_double(xdrs, &(png->png_tlon)))
return 0;
bs_iobytecnt+= 8;
if (!xdr_double(xdrs, &(png->png_tlat)))
return 0;
bs_iobytecnt+= 8;
if (!xdr_float(xdrs, &(png->png_tcourse)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_compass.sns_int)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_int(xdrs, &(png->png_compass.sns_nsamps)))
return 0;
bs_iobytecnt+= 4;
if (png->png_compass.sns_nsamps < 0)
return 0;
if (!xdr_float(xdrs, &(png->png_compass.sns_repval)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_depth.sns_int)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_int(xdrs, &(png->png_depth.sns_nsamps)))
return 0;
bs_iobytecnt+= 4;
if (png->png_depth.sns_nsamps < 0)
return 0;
if (!xdr_float(xdrs, &(png->png_depth.sns_repval)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_pitch.sns_int)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_int(xdrs, &(png->png_pitch.sns_nsamps)))
return 0;
bs_iobytecnt+= 4;
if (png->png_pitch.sns_nsamps < 0)
return 0;
if (!xdr_float(xdrs, &(png->png_pitch.sns_repval)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_roll.sns_int)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_int(xdrs, &(png->png_roll.sns_nsamps)))
return 0;
bs_iobytecnt+= 4;
if (png->png_roll.sns_nsamps < 0)
return 0;
if (!xdr_float(xdrs, &(png->png_roll.sns_repval)))
return 0;
bs_iobytecnt+= 4;
if (xdrs->x_op == XDR_DECODE)
png->png_snspad= 0;
if (!xdr_float(xdrs, &(png->png_temp)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_ssincr)))
return 0;
bs_iobytecnt+= 4;
if (version >= BS_VERSION_1_4) {
if (!xdr_int(xdrs, &(png->png_ssyoffsetmode)))
return 0;
bs_iobytecnt+= 4;
}
else {
if (xdrs->x_op == XDR_DECODE)
png->png_ssyoffsetmode= PNG_SSYOM_UNKNOWN;
}
if (!xdr_float(xdrs, &(png->png_alt)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_magcorr)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_sndvel)))
return 0;
bs_iobytecnt+= 4;
if (version >= BS_VERSION_1_1) {
if (!xdr_float(xdrs, &(png->png_cond)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_magx)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_magy)))
return 0;
bs_iobytecnt+= 4;
if (!xdr_float(xdrs, &(png->png_magz)))
return 0;
bs_iobytecnt+= 4;
}
else {
if (xdrs->x_op == XDR_DECODE) {
png->png_cond= bs_ionanf;
png->png_magx= bs_ionanf;
png->png_magy= bs_ionanf;
png->png_magz= bs_ionanf;
}
}
if (!mbbs_xdrside(&(png->png_sides[ACP_PORT]), xdrs, version, &sidebc))
return 0;
bs_iobytecnt+= sidebc;
if (!mbbs_xdrside(&(png->png_sides[ACP_STBD]), xdrs, version, &sidebc))
return 0;
bs_iobytecnt+= sidebc;
return 1;
}
int
mr1_xdrsidev1(PingSide *ps, XDR *xdrs, unsigned long *bytecnt)
/*
Internal routine.
Does XDR decoding of an obsolete MR1 version 1 PingSide header.
Records the total number of bytes transferred into *bytecnt.
Returns 1 if successful, 0 otherwise.
*/
{
*bytecnt= 0;
/* output in obsolete format not allowed! */
if (xdrs->x_op == XDR_ENCODE)
return 0;
if (!bs_ionaninit) {
bs_ionanf= mbbs_nanf();
bs_ionand= mbbs_nand();
bs_ionaninit= 1;
}
/* HMRG code never archived anything to the old ps_trans[]
fields, so their contents are meaningless -- this code
reads those meaningless values and then stores a NaN
to the new ps_xmitpwr field */
if (!xdr_float(xdrs, &(ps->ps_xmitpwr)))
return 0;
*bytecnt+= 4;
if (!xdr_float(xdrs, &(ps->ps_xmitpwr)))
return 0;
*bytecnt+= 4;
ps->ps_xmitpwr= bs_ionanf;
/* HMRG code never archived anything to the ps_gain field
prior to the format MR1 version 2 changeover -- this code
reads that meaningless value and then stores a NaN
to the ps_gain field */
if (!xdr_float(xdrs, &(ps->ps_gain)))
return 0;
*bytecnt+= 4;
ps->ps_gain= bs_ionanf;
/* HMRG code never archived anything to the ps_pulse field
prior to the format MR1 version 2 changeover with the exception
of one format conversion program (sb4b2mr) -- this code
reads that value and then replaces it with a NaN unless
it is non-zero */
if (!xdr_float(xdrs, &(ps->ps_pulse)))
return 0;
*bytecnt+= 4;
if (ps->ps_pulse == 0.)
ps->ps_pulse= bs_ionanf;
if (!xdr_int(xdrs, &(ps->ps_btycount)))
return 0;
*bytecnt+= 4;
if (xdrs->x_op == XDR_DECODE)
ps->ps_btypad= 0;
if (!xdr_float(xdrs, &(ps->ps_ssxoffset)))
return 0;
*bytecnt+= 4;
if (!xdr_int(xdrs, &(ps->ps_sscount)))
return 0;
*bytecnt+= 4;
if (xdrs->x_op == XDR_DECODE)
ps->ps_sspad= 0;
return 1;
}
