/* * Copyright (C) 1998 by Southwest Research Institute (SwRI) * * All rights reserved under U.S. Copyright Law and International Conventions. * * The development of this Software was supported by contracts NAG5-3148, * NAG5-6855, NAS8-36840, NAG5-2323, and NAG5-7043 issued on behalf of * the United States Government by its National Aeronautics and Space * Administration. Southwest Research Institute grants to the Government, * and others acting on its behalf, a paid-up nonexclusive, irrevocable, * worldwide license to reproduce, prepare derivative works, and perform * publicly and display publicly, by or on behalf of the Government. * Other than those rights granted to the United States Government, no part * of this Software may be reproduced in any form or by any means, electronic * or mechanical, including photocopying, without permission in writing from * Southwest Research Institute. 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SwRI can revise these Terms at any time * without notice by updating this posting. * * Trademarks * * The SwRI logo is a trademark of SwRI in the United States and other countries. * */ #ident "@(#) reset_mode.c 1.7 05/08/19 SwRI" #include "ret_codes.h" #include "user_defs.h" #include "libtrec_idfs.h" /******************************************************************************* * * * IR_RESET_MODE_BUFFERS SUBROUTINE * * * * DESCRIPTION * * This routine is called to reset some variables for another iteration of * * the FILL_MODE_DATA routine. For each buffer that was flagged ready to be * * processed by the last call to FILL_MODE_DATA, the buffer will be freed up * * and reset so that it may be used if needed by the current call to * * FILL_MODE_DATA. The start pixel, stop pixel, buffer status, bin status * * array and data array will be reset. Since there may be more than one data * * array (many units), all data and bin status arrays for this buffer group * * will be cleared. All units for each buffer are laid down together, so that* * if the mode had three units being returned (A, B, C), it would be laid * * down in 15 buffers as: * * ABC (buf 1) ABC (buf 2) ABC (buf 3) ABC (buf 4) ABC (buf 5) * * * * INPUT VARIABLES * * None * * * * USAGE * * ir_reset_mode_buffers () * * * * NECESSARY SUBPROGRAMS * * None * * * * EXTERNAL VARIABLES * * struct general_info ginfo structure that holds information concern- * * ing the experiment that is being processed * * * * INTERNAL VARIABLES * * struct experiment_info *ex a pointer to the structure that holds * * specific experiment information * * struct fill_mode *mptr pointer to the fill_mode structure being * * processed * * struct fill_sensor *sptr pointer to the fill_sensor structure being * * processed * * register SDDAS_FLOAT *dptr pointer to the data array * * register SDDAS_FLOAT *tfrac pointer to the normalization factors * * register SDDAS_SHORT mode looping variable over all modes * * register SDDAS_CHAR buffer looping variable for the buffers * * reg SDDAS_CHAR *bin_stat pointer to the bin status array * * SDDAS_FLOAT *stop_dptr loop termination variable * * SDDAS_LONG offset_buf offset indicating which buffer to start from* * SDDAS_LONG from_start offset to get to the data of interest * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ void ir_reset_mode_buffers (void) { extern struct general_info ginfo; struct experiment_info *ex; struct fill_mode *mptr; struct fill_sensor *sptr; register SDDAS_FLOAT *dptr, *tfrac; register SDDAS_SHORT mode; register SDDAS_CHAR buffer, *bin_stat; SDDAS_FLOAT *stop_dptr; SDDAS_LONG offset_buf, from_start; /*************************************************************************/ /* Point to the data_set/extension/version combo being processed. */ /*************************************************************************/ ex = ginfo.expt; mptr = ex->mode_arrays; /***************************************************************************/ /* Check each buffer. If the buffer was flagged as ready to be processed */ /* by the last call, reset the buf_stat element for the buffer. */ /***************************************************************************/ for (buffer = 0; buffer < NUM_BUFFERS; ++buffer) { if (*(mptr->buf_stat + buffer) == BUFFER_READY) { *(mptr->buf_stat + buffer) = FREE_BUFFER; *(mptr->bpix + buffer) = *(mptr->epix + buffer) = -1; /********************************************************************/ /* Clear all data and bin status arrays (1 per data level) */ /* associated with the buffer. */ /********************************************************************/ for (mode = 0; mode < ex->num_mode_info; ++mode) { /******************************************************************/ /* For data & bin status arrays, there are NUM_BUFFER elements */ /* for EACH data level being returned for each mode. Set the */ /* pointers to the beginning of the first buffer for this mode. */ /******************************************************************/ from_start = NUM_BUFFERS * *(mptr->num_units + mode); dptr = mptr->data + from_start; tfrac = mptr->tot_frac + from_start; bin_stat = mptr->bin_stat + from_start; /*************************************************************/ /* There is one buffer for each of the data levels (units) */ /* with one element per buffer. */ /*************************************************************/ sptr = ex->mode_info_ptr + *(mptr->ind_fill_mode + mode); from_start = sptr->num_units; offset_buf = buffer * from_start; dptr += offset_buf; bin_stat += offset_buf; tfrac += offset_buf; stop_dptr = dptr + from_start; for (; dptr < stop_dptr; ++dptr, ++tfrac, ++bin_stat) { *dptr = OUTSIDE_MIN; *tfrac = 0.0; *bin_stat = 0; } } } } }