probably include in release

dev/standnew/distwarp.c

@@ -0,0 +1,1328 @@
+/*
+ * Copyright (c) 1983-2023 Trevor Wishart and Composers Desktop Project Ltd
+ * http://www.trevorwishart.co.uk
+ * http://www.composersdesktop.com
+ *
+ This file is part of the CDP System.
+ 
+ The CDP System 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.
+ 
+ The CDP System 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 the CDP System; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <structures.h>
+#include <tkglobals.h>
+#include <pnames.h>
+#include <filetype.h>
+#include <processno.h>
+#include <modeno.h>
+#include <logic.h>
+#include <globcon.h>
+#include <cdpmain.h>
+#include <math.h>
+#include <mixxcon.h>
+#include <osbind.h>
+#include <standalone.h>
+#include <ctype.h>
+#include <sfsys.h>
+#include <string.h>
+#include <srates.h>
+
+
+#ifdef unix
+#define round(x) lround((x))
+#endif
+
+char errstr[2400];
+
+int anal_infiles = 1;
+int sloom = 0;
+int sloombatch = 0;
+
+const char* cdp_version = "6.1.0";
+
+//CDP LIB REPLACEMENTS
+static int setup_distwarp_application(dataptr dz);
+static int parse_sloom_data(int argc,char *argv[],char ***cmdline,int *cmdlinecnt,dataptr dz);
+static int parse_infile_and_check_type(char **cmdline,dataptr dz);
+static int setup_distwarp_param_ranges_and_defaults(dataptr dz);
+static int handle_the_outfile(int *cmdlinecnt,char ***cmdline,dataptr dz);
+static int setup_and_init_input_param_activity(dataptr dz,int tipc);
+static int setup_input_param_defaultval_stores(int tipc,aplptr ap);
+static int establish_application(dataptr dz);
+static int initialise_vflags(dataptr dz);
+static int setup_parameter_storage_and_constants(int storage_cnt,dataptr dz);
+static int initialise_is_int_and_no_brk_constants(int storage_cnt,dataptr dz);
+static int mark_parameter_types(dataptr dz,aplptr ap);
+static int assign_file_data_storage(int infilecnt,dataptr dz);
+static int get_tk_cmdline_word(int *cmdlinecnt,char ***cmdline,char *q);
+static int get_the_process_no(char *prog_identifier_from_cmdline,dataptr dz);
+static int get_the_mode_from_cmdline(char *str,dataptr dz);
+static int setup_and_init_input_brktable_constants(dataptr dz,int brkcnt);
+static int distwarp(dataptr dz);
+
+/**************************************** MAIN *********************************************/
+
+int main(int argc,char *argv[])
+{
+    int exit_status;
+    dataptr dz = NULL;
+    char **cmdline;
+    int  cmdlinecnt;
+    int n;
+ //   aplptr ap;
+    int is_launched = FALSE;
+    if(argc==2 && (strcmp(argv[1],"--version") == 0)) {
+        fprintf(stdout,"%s\n",cdp_version);
+        fflush(stdout);
+        return 0;
+    }
+                        /* CHECK FOR SOUNDLOOM */
+    if((sloom = sound_loom_in_use(&argc,&argv)) > 1) {
+        sloom = 0;
+        sloombatch = 1;
+    }
+    if(sflinit("cdp")){
+        sfperror("cdp: initialisation\n");
+        return(FAILED);
+    }
+                          /* SET UP THE PRINCIPLE DATASTRUCTURE */
+    if((exit_status = establish_datastructure(&dz))<0) {                    // CDP LIB
+        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+    if(!sloom) {
+        if(argc == 1) {
+            usage1();   
+            return(FAILED);
+        } else if(argc == 2) {
+            usage2(argv[1]);    
+            return(FAILED);
+        }
+    }
+    if(!sloom) {
+/* TEST */
+//fprintf(stderr,"000\n");
+/* TEST */
+        if((exit_status = make_initial_cmdline_check(&argc,&argv))<0) {     // CDP LIB
+            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+            return(FAILED);
+        }
+        cmdline    = argv;
+        cmdlinecnt = argc;
+/* TEST */
+//fprintf(stderr,"000AAA ARGV[0] = %s\n",argv[0]);
+/* TEST */
+        if((get_the_process_no(argv[0],dz))<0)
+            return(FAILED);
+        cmdline++;
+        cmdlinecnt--;
+        dz->maxmode = 2;
+/* TEST */
+//fprintf(stderr,"111\n");
+/* TEST */
+        if((exit_status = get_the_mode_from_cmdline(cmdline[0],dz))<0) {
+            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+            return(exit_status);
+        }
+        cmdline++;
+        cmdlinecnt--;
+        // setup_particular_application =
+/* TEST */
+//fprintf(stderr,"222\n");
+/* TEST */
+        if((exit_status = setup_distwarp_application(dz))<0) {
+            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+            return(FAILED);
+        }
+/* TEST */
+//fprintf(stderr,"333\n");
+/* TEST */
+        if((exit_status = count_and_allocate_for_infiles(cmdlinecnt,cmdline,dz))<0) {       // CDP LIB
+            print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+            return(FAILED);
+        }
+    } else {
+        //parse_TK_data() =
+        if((exit_status = parse_sloom_data(argc,argv,&cmdline,&cmdlinecnt,dz))<0) {
+            exit_status = print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+            return(exit_status);         
+        }
+    }
+//    ap = dz->application;
+
+    // parse_infile_and_hone_type() = 
+/* TEST */
+//fprintf(stderr,"444\n");
+/* TEST */
+    if((exit_status = parse_infile_and_check_type(cmdline,dz))<0) {
+        exit_status = print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+    // setup_param_ranges_and_defaults() =
+/* TEST */
+//fprintf(stderr,"555\n");
+/* TEST */
+    if((exit_status = setup_distwarp_param_ranges_and_defaults(dz))<0) {
+        exit_status = print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+    // open_first_infile        CDP LIB
+/* TEST */
+//fprintf(stderr,"666\n");
+/* TEST */
+    if((exit_status = open_first_infile(cmdline[0],dz))<0) {    
+        print_messages_and_close_sndfiles(exit_status,is_launched,dz);  
+        return(FAILED);
+    }
+    cmdlinecnt--;
+    cmdline++;
+
+//  handle_extra_infiles() : redundant
+    // handle_outfile() = 
+/* TEST */
+//fprintf(stderr,"777\n");
+/* TEST */
+    if((exit_status = handle_the_outfile(&cmdlinecnt,&cmdline,dz))<0) {
+        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+
+//  handle_formants()           redundant
+//  handle_formant_quiksearch() redundant
+//  handle_special_data()       redundant
+ 
+/* TEST */
+//fprintf(stderr,"888\n");
+/* TEST */
+    if((exit_status = read_parameters_and_flags(&cmdline,&cmdlinecnt,dz))<0) {      // CDP LIB
+        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+//  check_param_validity_and_consistency() : redundant
+/* TEST */
+//fprintf(stderr,"99\n");
+/* TEST */
+    is_launched = TRUE;
+    dz->bufcnt = 1;
+    if((dz->sampbuf = (float **)malloc(sizeof(float *) * (dz->bufcnt+1)))==NULL) {
+        sprintf(errstr,"INSUFFICIENT MEMORY establishing sample buffers.\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->sbufptr = (float **)malloc(sizeof(float *) * dz->bufcnt))==NULL) {
+        sprintf(errstr,"INSUFFICIENT MEMORY establishing sample buffer pointers.\n");
+        return(MEMORY_ERROR);
+    }
+    for(n = 0;n <dz->bufcnt; n++)
+        dz->sampbuf[n] = dz->sbufptr[n] = (float *)0;
+    dz->sampbuf[n] = (float *)0;
+
+    if((exit_status = create_sndbufs(dz))<0) {                          // CDP LIB
+        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+    //param_preprocess()                        redundant
+    //spec_process_file =
+/* TEST */
+//fprintf(stderr,"AAA\n");
+/* TEST */
+    if((exit_status = distwarp(dz))<0) {
+        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+/* TEST */
+//fprintf(stderr,"BBB\n");
+/* TEST */
+    if((exit_status = complete_output(dz))<0) {                                     // CDP LIB
+        print_messages_and_close_sndfiles(exit_status,is_launched,dz);
+        return(FAILED);
+    }
+    exit_status = print_messages_and_close_sndfiles(FINISHED,is_launched,dz);       // CDP LIB
+    free(dz);
+    return(SUCCEEDED);
+}
+
+/**********************************************
+        REPLACED CDP LIB FUNCTIONS
+**********************************************/
+
+
+/****************************** SET_PARAM_DATA *********************************/
+
+int set_param_data(aplptr ap, int special_data,int maxparamcnt,int paramcnt,char *paramlist)
+{
+    ap->special_data   = (char)special_data;       
+    ap->param_cnt      = (char)paramcnt;
+    ap->max_param_cnt  = (char)maxparamcnt;
+    if(ap->max_param_cnt>0) {
+        if((ap->param_list = (char *)malloc((size_t)(ap->max_param_cnt+1)))==NULL) {    
+            sprintf(errstr,"INSUFFICIENT MEMORY: for param_list\n");
+            return(MEMORY_ERROR);
+        }
+        strcpy(ap->param_list,paramlist); 
+    }
+    return(FINISHED);
+}
+
+/****************************** SET_VFLGS *********************************/
+
+int set_vflgs
+(aplptr ap,char *optflags,int optcnt,char *optlist,char *varflags,int vflagcnt, int vparamcnt,char *varlist)
+{
+    ap->option_cnt   = (char) optcnt;           /*RWD added cast */
+    if(optcnt) {
+        if((ap->option_list = (char *)malloc((size_t)(optcnt+1)))==NULL) {
+            sprintf(errstr,"INSUFFICIENT MEMORY: for option_list\n");
+            return(MEMORY_ERROR);
+        }
+        strcpy(ap->option_list,optlist);
+        if((ap->option_flags = (char *)malloc((size_t)(optcnt+1)))==NULL) {
+            sprintf(errstr,"INSUFFICIENT MEMORY: for option_flags\n");
+            return(MEMORY_ERROR);
+        }
+        strcpy(ap->option_flags,optflags); 
+    }
+    ap->vflag_cnt = (char) vflagcnt;           
+    ap->variant_param_cnt = (char) vparamcnt;
+    if(vflagcnt) {
+        if((ap->variant_list  = (char *)malloc((size_t)(vflagcnt+1)))==NULL) {
+            sprintf(errstr,"INSUFFICIENT MEMORY: for variant_list\n");
+            return(MEMORY_ERROR);
+        }
+        strcpy(ap->variant_list,varlist);       
+        if((ap->variant_flags = (char *)malloc((size_t)(vflagcnt+1)))==NULL) {
+            sprintf(errstr,"INSUFFICIENT MEMORY: for variant_flags\n");
+            return(MEMORY_ERROR);
+        }
+        strcpy(ap->variant_flags,varflags);
+
+    }
+    return(FINISHED);
+}
+
+/***************************** APPLICATION_INIT **************************/
+
+int application_init(dataptr dz)
+{
+    int exit_status;
+    int storage_cnt;
+    int tipc, brkcnt;
+    aplptr ap = dz->application;
+    if(ap->vflag_cnt>0)
+        initialise_vflags(dz);    
+    tipc  = ap->max_param_cnt + ap->option_cnt + ap->variant_param_cnt;
+    ap->total_input_param_cnt = (char)tipc;
+    if(tipc>0) {
+        if((exit_status = setup_input_param_range_stores(tipc,ap))<0)             
+            return(exit_status);
+        if((exit_status = setup_input_param_defaultval_stores(tipc,ap))<0)        
+            return(exit_status);
+        if((exit_status = setup_and_init_input_param_activity(dz,tipc))<0)    
+            return(exit_status);
+    }
+    brkcnt = tipc;
+    //THERE ARE NO INPUTFILE brktables USED IN THIS PROCESS
+    if(brkcnt>0) {
+        if((exit_status = setup_and_init_input_brktable_constants(dz,brkcnt))<0)              
+            return(exit_status);
+    }
+    if((storage_cnt = tipc + ap->internal_param_cnt)>0) {         
+        if((exit_status = setup_parameter_storage_and_constants(storage_cnt,dz))<0)   
+            return(exit_status);
+        if((exit_status = initialise_is_int_and_no_brk_constants(storage_cnt,dz))<0)      
+            return(exit_status);
+    }                                                      
+    if((exit_status = mark_parameter_types(dz,ap))<0)     
+        return(exit_status);
+    
+    // establish_infile_constants() replaced by
+    dz->infilecnt = 1;
+    //establish_bufptrs_and_extra_buffers():
+    return(FINISHED);
+}
+
+/********************** SETUP_PARAMETER_STORAGE_AND_CONSTANTS ********************/
+/* RWD mallo changed to calloc; helps debug verison run as release! */
+
+int setup_parameter_storage_and_constants(int storage_cnt,dataptr dz)
+{
+    if((dz->param       = (double *)calloc(storage_cnt, sizeof(double)))==NULL) {
+        sprintf(errstr,"setup_parameter_storage_and_constants(): 1\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->iparam      = (int    *)calloc(storage_cnt, sizeof(int)   ))==NULL) {
+        sprintf(errstr,"setup_parameter_storage_and_constants(): 2\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->is_int      = (char   *)calloc(storage_cnt, sizeof(char)))==NULL) {
+        sprintf(errstr,"setup_parameter_storage_and_constants(): 3\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->no_brk      = (char   *)calloc(storage_cnt, sizeof(char)))==NULL) {
+        sprintf(errstr,"setup_parameter_storage_and_constants(): 5\n");
+        return(MEMORY_ERROR);
+    }
+    return(FINISHED);
+}
+
+/************** INITIALISE_IS_INT_AND_NO_BRK_CONSTANTS *****************/
+
+int initialise_is_int_and_no_brk_constants(int storage_cnt,dataptr dz)
+{
+    int n;
+    for(n=0;n<storage_cnt;n++) {
+        dz->is_int[n] = (char)0;
+        dz->no_brk[n] = (char)0;
+    }
+    return(FINISHED);
+}
+
+/***************************** MARK_PARAMETER_TYPES **************************/
+
+int mark_parameter_types(dataptr dz,aplptr ap)
+{
+    int n, m;                           /* PARAMS */
+    for(n=0;n<ap->max_param_cnt;n++) {
+        switch(ap->param_list[n]) {
+        case('0'):  break; /* dz->is_active[n] = 0 is default */
+        case('i'):  dz->is_active[n] = (char)1; dz->is_int[n] = (char)1;dz->no_brk[n] = (char)1; break;
+        case('I'):  dz->is_active[n] = (char)1; dz->is_int[n] = (char)1;                         break;
+        case('d'):  dz->is_active[n] = (char)1;                         dz->no_brk[n] = (char)1; break;
+        case('D'):  dz->is_active[n] = (char)1; /* normal case: double val or brkpnt file */     break;
+        default:
+            sprintf(errstr,"Programming error: invalid parameter type in mark_parameter_types()\n");
+            return(PROGRAM_ERROR);
+        }
+    }                               /* OPTIONS */
+    for(n=0,m=ap->max_param_cnt;n<ap->option_cnt;n++,m++) {
+        switch(ap->option_list[n]) {
+        case('i'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1; dz->no_brk[m] = (char)1; break;
+        case('I'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1;                          break;
+        case('d'): dz->is_active[m] = (char)1;                          dz->no_brk[m] = (char)1; break;
+        case('D'): dz->is_active[m] = (char)1;  /* normal case: double val or brkpnt file */     break;
+        default:
+            sprintf(errstr,"Programming error: invalid option type in mark_parameter_types()\n");
+            return(PROGRAM_ERROR);
+        }
+    }                               /* VARIANTS */
+    for(n=0,m=ap->max_param_cnt + ap->option_cnt;n < ap->variant_param_cnt; n++, m++) {
+        switch(ap->variant_list[n]) {
+        case('0'): break;
+        case('i'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1; dz->no_brk[m] = (char)1; break;
+        case('I'): dz->is_active[m] = (char)1; dz->is_int[m] = (char)1;                          break;
+        case('d'): dz->is_active[m] = (char)1;                          dz->no_brk[m] = (char)1; break;
+        case('D'): dz->is_active[m] = (char)1; /* normal case: double val or brkpnt file */      break;
+        default:
+            sprintf(errstr,"Programming error: invalid variant type in mark_parameter_types()\n");
+            return(PROGRAM_ERROR);
+        }
+    }                               /* INTERNAL */
+    for(n=0,
+    m=ap->max_param_cnt + ap->option_cnt + ap->variant_param_cnt; n<ap->internal_param_cnt; n++,m++) {
+        switch(ap->internal_param_list[n]) {
+        case('0'):  break;   /* dummy variables: variables not used: but important for internal paream numbering!! */
+        case('i'):  dz->is_int[m] = (char)1;    dz->no_brk[m] = (char)1;    break;
+        case('d'):                              dz->no_brk[m] = (char)1;    break;
+        default:
+            sprintf(errstr,"Programming error: invalid internal param type in mark_parameter_types()\n");
+            return(PROGRAM_ERROR);
+        }
+    }
+    return(FINISHED);
+}
+
+/************************ HANDLE_THE_OUTFILE *********************/
+
+int handle_the_outfile(int *cmdlinecnt,char ***cmdline,dataptr dz)
+{
+    int exit_status;
+    char *filename = (*cmdline)[0];
+    if(filename[0]=='-' && filename[1]=='f') {
+        dz->floatsam_output = 1;
+        dz->true_outfile_stype = SAMP_FLOAT;
+        filename+= 2;
+    }
+    if(!sloom) {
+        if(file_has_invalid_startchar(filename) || value_is_numeric(filename)) {
+            sprintf(errstr,"Outfile name %s has invalid start character(s) or looks too much like a number.\n",filename);
+            return(DATA_ERROR);
+        }
+    }
+    strcpy(dz->outfilename,filename);      
+    if((exit_status = create_sized_outfile(filename,dz))<0)
+        return(exit_status);
+    (*cmdline)++;
+    (*cmdlinecnt)--;
+    return(FINISHED);
+}
+
+/***************************** ESTABLISH_APPLICATION **************************/
+
+int establish_application(dataptr dz)
+{
+    aplptr ap;
+    if((dz->application = (aplptr)malloc(sizeof (struct applic)))==NULL) {
+        sprintf(errstr,"establish_application()\n");
+        return(MEMORY_ERROR);
+    }
+    ap = dz->application;
+    memset((char *)ap,0,sizeof(struct applic));
+    return(FINISHED);
+}
+
+/************************* INITIALISE_VFLAGS *************************/
+
+int initialise_vflags(dataptr dz)
+{
+    int n;
+    if((dz->vflag  = (char *)malloc(dz->application->vflag_cnt * sizeof(char)))==NULL) {
+        sprintf(errstr,"INSUFFICIENT MEMORY: vflag store,\n");
+        return(MEMORY_ERROR);
+    }
+    for(n=0;n<dz->application->vflag_cnt;n++)
+        dz->vflag[n]  = FALSE;
+    return FINISHED;
+}
+
+/************************* SETUP_INPUT_PARAM_DEFAULTVALS *************************/
+
+int setup_input_param_defaultval_stores(int tipc,aplptr ap)
+{
+    int n;
+    if((ap->default_val = (double *)malloc(tipc * sizeof(double)))==NULL) {
+        sprintf(errstr,"INSUFFICIENT MEMORY for application default values store\n");
+        return(MEMORY_ERROR);
+    }
+    for(n=0;n<tipc;n++)
+        ap->default_val[n] = 0.0;
+    return(FINISHED);
+}
+
+/***************************** SETUP_AND_INIT_INPUT_PARAM_ACTIVITY **************************/
+
+int setup_and_init_input_param_activity(dataptr dz,int tipc)
+{
+    int n;
+    if((dz->is_active = (char   *)malloc((size_t)tipc))==NULL) {
+        sprintf(errstr,"setup_and_init_input_param_activity()\n");
+        return(MEMORY_ERROR);
+    }
+    for(n=0;n<tipc;n++)
+        dz->is_active[n] = (char)0;
+    return(FINISHED);
+}
+
+/************************* SETUP_DISTWARP_APPLICATION *******************/
+
+int setup_distwarp_application(dataptr dz)
+{
+    int exit_status;
+    aplptr ap;
+    if((exit_status = establish_application(dz))<0)     // GLOBAL
+        return(FAILED);
+    ap = dz->application;
+    // SEE parstruct FOR EXPLANATION of next 2 functions
+    if(dz->mode == 0)   
+        exit_status = set_param_data(ap,0   ,2,1,"D0");
+    else 
+        exit_status = set_param_data(ap,0   ,2,2,"DI");
+    if(exit_status <0)
+        return(FAILED);
+    if((exit_status = set_vflgs(ap,"",0,"","",0,0,""))<0)
+        return(FAILED);
+    // set_legal_infile_structure -->
+    dz->has_otherfile = FALSE;
+    // assign_process_logic -->
+    dz->input_data_type = SNDFILES_ONLY;
+    dz->process_type    = EQUAL_SNDFILE;    
+    dz->outfiletype     = SNDFILE_OUT;
+    return application_init(dz);    //GLOBAL
+}
+
+/************************* PARSE_INFILE_AND_CHECK_TYPE *******************/
+
+int parse_infile_and_check_type(char **cmdline,dataptr dz)
+{
+    int exit_status;
+    infileptr infile_info;
+    if(!sloom) {
+        if((infile_info = (infileptr)malloc(sizeof(struct filedata)))==NULL) {
+            sprintf(errstr,"INSUFFICIENT MEMORY for infile structure to test file data.");
+            return(MEMORY_ERROR);
+        } else if((exit_status = cdparse(cmdline[0],infile_info))<0) {
+            sprintf(errstr,"Failed to parse input file %s\n",cmdline[0]);
+            return(PROGRAM_ERROR);
+        } else if(infile_info->filetype != SNDFILE)  {
+            sprintf(errstr,"File %s is not of correct type\n",cmdline[0]);
+            return(DATA_ERROR);
+        }
+        if(dz->mode > 0) {
+            if(infile_info->channels != 1)  {
+                sprintf(errstr,"File %s is not of correct type (must be mono)\n",cmdline[0]);
+                return(DATA_ERROR);
+            }
+        } else {
+            if(infile_info->channels > 2)  {
+                sprintf(errstr,"File %s is not of correct type (must be mono or stereo)\n",cmdline[0]);
+                return(DATA_ERROR);
+            }
+        }
+        if((exit_status = copy_parse_info_to_main_structure(infile_info,dz))<0) {
+            sprintf(errstr,"Failed to copy file parsing information\n");
+            return(PROGRAM_ERROR);
+        }
+        free(infile_info);
+    }
+    return(FINISHED);
+}
+
+/************************* SETUP_DISTWARP_PARAM_RANGES_AND_DEFAULTS *******************/
+
+int setup_distwarp_param_ranges_and_defaults(dataptr dz)
+{
+    int exit_status;
+    aplptr ap = dz->application;
+    // set_param_ranges()
+    ap->total_input_param_cnt = (char)(ap->max_param_cnt + ap->option_cnt + ap->variant_param_cnt);
+    // NB total_input_param_cnt is > 0 !!!
+    if((exit_status = setup_input_param_range_stores(ap->total_input_param_cnt,ap))<0)
+        return(FAILED);
+    // get_param_ranges()
+    ap->lo[0]   = 0.0001;
+    ap->hi[0]   = 0.1;
+    ap->default_val[0]  = 0.001;
+    ap->lo[1]   = 1;
+    ap->hi[1]   = MAX_CYCLECNT;
+    ap->default_val[1] = 1;
+    dz->maxmode = 2;
+    if(!sloom)
+        put_default_vals_in_all_params(dz);
+    return(FINISHED);
+}
+
+/********************************* PARSE_SLOOM_DATA *********************************/
+
+int parse_sloom_data(int argc,char *argv[],char ***cmdline,int *cmdlinecnt,dataptr dz)
+{
+    int exit_status;
+    int cnt = 1, infilecnt;
+    int filesize, insams, inbrksize;
+    double dummy;
+    int true_cnt = 0;
+//    aplptr ap;
+
+    while(cnt<=PRE_CMDLINE_DATACNT) {
+        if(cnt > argc) {
+            sprintf(errstr,"Insufficient data sent from TK\n");
+            return(DATA_ERROR);
+        }
+        switch(cnt) {
+        case(1):    
+            if(sscanf(argv[cnt],"%d",&dz->process)!=1) {
+                sprintf(errstr,"Cannot read process no. sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+
+        case(2):    
+            if(sscanf(argv[cnt],"%d",&dz->mode)!=1) {
+                sprintf(errstr,"Cannot read mode no. sent from TK\n");
+                return(DATA_ERROR);
+            }
+            if(dz->mode > 0)
+                dz->mode--;
+            //setup_particular_application() =
+            if((exit_status = setup_distwarp_application(dz))<0)
+                return(exit_status);
+ //           ap = dz->application;
+            break;
+
+        case(3):    
+            if(sscanf(argv[cnt],"%d",&infilecnt)!=1) {
+                sprintf(errstr,"Cannot read infilecnt sent from TK\n");
+                return(DATA_ERROR);
+            }
+            if(infilecnt < 1) {
+                true_cnt = cnt + 1;
+                cnt = PRE_CMDLINE_DATACNT;  /* force exit from loop after assign_file_data_storage */
+            }
+            if((exit_status = assign_file_data_storage(infilecnt,dz))<0)
+                return(exit_status);
+            break;
+        case(INPUT_FILETYPE+4): 
+            if(sscanf(argv[cnt],"%d",&dz->infile->filetype)!=1) {
+                sprintf(errstr,"Cannot read filetype sent from TK (%s)\n",argv[cnt]);
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_FILESIZE+4): 
+            if(sscanf(argv[cnt],"%d",&filesize)!=1) {
+                sprintf(errstr,"Cannot read infilesize sent from TK\n");
+                return(DATA_ERROR);
+            }
+            dz->insams[0] = filesize;   
+            break;
+        case(INPUT_INSAMS+4):   
+            if(sscanf(argv[cnt],"%d",&insams)!=1) {
+                sprintf(errstr,"Cannot read insams sent from TK\n");
+                return(DATA_ERROR);
+            }
+            dz->insams[0] = insams; 
+            break;
+        case(INPUT_SRATE+4):    
+            if(sscanf(argv[cnt],"%d",&dz->infile->srate)!=1) {
+                sprintf(errstr,"Cannot read srate sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_CHANNELS+4): 
+            if(sscanf(argv[cnt],"%d",&dz->infile->channels)!=1) {
+                sprintf(errstr,"Cannot read channels sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_STYPE+4):    
+            if(sscanf(argv[cnt],"%d",&dz->infile->stype)!=1) {
+                sprintf(errstr,"Cannot read stype sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_ORIGSTYPE+4):    
+            if(sscanf(argv[cnt],"%d",&dz->infile->origstype)!=1) {
+                sprintf(errstr,"Cannot read origstype sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_ORIGRATE+4): 
+            if(sscanf(argv[cnt],"%d",&dz->infile->origrate)!=1) {
+                sprintf(errstr,"Cannot read origrate sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_MLEN+4): 
+            if(sscanf(argv[cnt],"%d",&dz->infile->Mlen)!=1) {
+                sprintf(errstr,"Cannot read Mlen sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_DFAC+4): 
+            if(sscanf(argv[cnt],"%d",&dz->infile->Dfac)!=1) {
+                sprintf(errstr,"Cannot read Dfac sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_ORIGCHANS+4):    
+            if(sscanf(argv[cnt],"%d",&dz->infile->origchans)!=1) {
+                sprintf(errstr,"Cannot read origchans sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_SPECENVCNT+4):   
+            if(sscanf(argv[cnt],"%d",&dz->infile->specenvcnt)!=1) {
+                sprintf(errstr,"Cannot read specenvcnt sent from TK\n");
+                return(DATA_ERROR);
+            }
+            dz->specenvcnt = dz->infile->specenvcnt;
+            break;
+        case(INPUT_WANTED+4):   
+            if(sscanf(argv[cnt],"%d",&dz->wanted)!=1) {
+                sprintf(errstr,"Cannot read wanted sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_WLENGTH+4):  
+            if(sscanf(argv[cnt],"%d",&dz->wlength)!=1) {
+                sprintf(errstr,"Cannot read wlength sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_OUT_CHANS+4):    
+            if(sscanf(argv[cnt],"%d",&dz->out_chans)!=1) {
+                sprintf(errstr,"Cannot read out_chans sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+            /* RWD these chanegs to samps - tk will have to deal with that! */
+        case(INPUT_DESCRIPTOR_BYTES+4): 
+            if(sscanf(argv[cnt],"%d",&dz->descriptor_samps)!=1) {
+                sprintf(errstr,"Cannot read descriptor_samps sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_IS_TRANSPOS+4):  
+            if(sscanf(argv[cnt],"%d",&dz->is_transpos)!=1) {
+                sprintf(errstr,"Cannot read is_transpos sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_COULD_BE_TRANSPOS+4):    
+            if(sscanf(argv[cnt],"%d",&dz->could_be_transpos)!=1) {
+                sprintf(errstr,"Cannot read could_be_transpos sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_COULD_BE_PITCH+4):   
+            if(sscanf(argv[cnt],"%d",&dz->could_be_pitch)!=1) {
+                sprintf(errstr,"Cannot read could_be_pitch sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_DIFFERENT_SRATES+4): 
+            if(sscanf(argv[cnt],"%d",&dz->different_srates)!=1) {
+                sprintf(errstr,"Cannot read different_srates sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_DUPLICATE_SNDS+4):   
+            if(sscanf(argv[cnt],"%d",&dz->duplicate_snds)!=1) {
+                sprintf(errstr,"Cannot read duplicate_snds sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_BRKSIZE+4):  
+            if(sscanf(argv[cnt],"%d",&inbrksize)!=1) {
+                sprintf(errstr,"Cannot read brksize sent from TK\n");
+                return(DATA_ERROR);
+            }
+            if(inbrksize > 0) {
+                switch(dz->input_data_type) {
+                case(WORDLIST_ONLY):
+                    break;
+                case(PITCH_AND_PITCH):
+                case(PITCH_AND_TRANSPOS):
+                case(TRANSPOS_AND_TRANSPOS):
+                    dz->tempsize = inbrksize;
+                    break;
+                case(BRKFILES_ONLY):
+                case(UNRANGED_BRKFILE_ONLY):
+                case(DB_BRKFILES_ONLY):
+                case(ALL_FILES):
+                case(ANY_NUMBER_OF_ANY_FILES):
+                    if(dz->extrabrkno < 0) {
+                        sprintf(errstr,"Storage location number for brktable not established by CDP.\n");
+                        return(DATA_ERROR);
+                    }
+                    if(dz->brksize == NULL) {
+                        sprintf(errstr,"CDP has not established storage space for input brktable.\n");
+                        return(PROGRAM_ERROR);
+                    }
+                    dz->brksize[dz->extrabrkno] = inbrksize;
+                    break;
+                default:
+                    sprintf(errstr,"TK sent brktablesize > 0 for input_data_type [%d] not using brktables.\n",
+                    dz->input_data_type);
+                    return(PROGRAM_ERROR);
+                }
+                break;
+            }
+            break;
+        case(INPUT_NUMSIZE+4):  
+            if(sscanf(argv[cnt],"%d",&dz->numsize)!=1) {
+                sprintf(errstr,"Cannot read numsize sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_LINECNT+4):  
+            if(sscanf(argv[cnt],"%d",&dz->linecnt)!=1) {
+                sprintf(errstr,"Cannot read linecnt sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_ALL_WORDS+4):    
+            if(sscanf(argv[cnt],"%d",&dz->all_words)!=1) {
+                sprintf(errstr,"Cannot read all_words sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_ARATE+4):    
+            if(sscanf(argv[cnt],"%f",&dz->infile->arate)!=1) {
+                sprintf(errstr,"Cannot read arate sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_FRAMETIME+4):    
+            if(sscanf(argv[cnt],"%lf",&dummy)!=1) {
+                sprintf(errstr,"Cannot read frametime sent from TK\n");
+                return(DATA_ERROR);
+            }
+            dz->frametime = (float)dummy;
+            break;
+        case(INPUT_WINDOW_SIZE+4):  
+            if(sscanf(argv[cnt],"%f",&dz->infile->window_size)!=1) {
+                sprintf(errstr,"Cannot read window_size sent from TK\n");
+                    return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_NYQUIST+4):  
+            if(sscanf(argv[cnt],"%lf",&dz->nyquist)!=1) {
+                sprintf(errstr,"Cannot read nyquist sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_DURATION+4): 
+            if(sscanf(argv[cnt],"%lf",&dz->duration)!=1) {
+                sprintf(errstr,"Cannot read duration sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_MINBRK+4):   
+            if(sscanf(argv[cnt],"%lf",&dz->minbrk)!=1) {
+                sprintf(errstr,"Cannot read minbrk sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_MAXBRK+4):   
+            if(sscanf(argv[cnt],"%lf",&dz->maxbrk)!=1) {
+                sprintf(errstr,"Cannot read maxbrk sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_MINNUM+4):   
+            if(sscanf(argv[cnt],"%lf",&dz->minnum)!=1) {
+                sprintf(errstr,"Cannot read minnum sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        case(INPUT_MAXNUM+4):   
+            if(sscanf(argv[cnt],"%lf",&dz->maxnum)!=1) {
+                sprintf(errstr,"Cannot read maxnum sent from TK\n");
+                return(DATA_ERROR);
+            }
+            break;
+        default:
+            sprintf(errstr,"case switch item missing: parse_sloom_data()\n");
+            return(PROGRAM_ERROR);
+        }
+        cnt++;
+    }
+    if(cnt!=PRE_CMDLINE_DATACNT+1) {
+        sprintf(errstr,"Insufficient pre-cmdline params sent from TK\n");
+        return(DATA_ERROR);
+    }
+
+    if(true_cnt)
+        cnt = true_cnt;
+    *cmdlinecnt = 0;        
+
+    while(cnt < argc) {
+        if((exit_status = get_tk_cmdline_word(cmdlinecnt,cmdline,argv[cnt]))<0)
+            return(exit_status);
+        cnt++;
+    }
+    return(FINISHED);
+}
+
+/********************************* GET_TK_CMDLINE_WORD *********************************/
+
+int get_tk_cmdline_word(int *cmdlinecnt,char ***cmdline,char *q)
+{
+    if(*cmdlinecnt==0) {
+        if((*cmdline = (char **)malloc(sizeof(char *)))==NULL)  {
+            sprintf(errstr,"INSUFFICIENT MEMORY for TK cmdline array.\n");
+            return(MEMORY_ERROR);
+        }
+    } else {
+        if((*cmdline = (char **)realloc(*cmdline,((*cmdlinecnt)+1) * sizeof(char *)))==NULL)    {
+            sprintf(errstr,"INSUFFICIENT MEMORY for TK cmdline array.\n");
+            return(MEMORY_ERROR);
+        }
+    }
+    if(((*cmdline)[*cmdlinecnt] = (char *)malloc((strlen(q) + 1) * sizeof(char)))==NULL)    {
+        sprintf(errstr,"INSUFFICIENT MEMORY for TK cmdline item %d.\n",(*cmdlinecnt)+1);
+        return(MEMORY_ERROR);
+    }
+    strcpy((*cmdline)[*cmdlinecnt],q);
+    (*cmdlinecnt)++;
+    return(FINISHED);
+}
+
+
+/****************************** ASSIGN_FILE_DATA_STORAGE *********************************/
+
+int assign_file_data_storage(int infilecnt,dataptr dz)
+{
+    int exit_status;
+    int no_sndfile_system_files = FALSE;
+    dz->infilecnt = infilecnt;
+    if((exit_status = allocate_filespace(dz))<0)
+        return(exit_status);
+    if(no_sndfile_system_files)
+        dz->infilecnt = 0;
+    return(FINISHED);
+}
+
+
+
+/************************* redundant functions: to ensure libs compile OK *******************/
+
+int assign_process_logic(dataptr dz)
+{
+    return(FINISHED);
+}
+
+void set_legal_infile_structure(dataptr dz)
+{}
+
+int set_legal_internalparam_structure(int process,int mode,aplptr ap)
+{
+    return(FINISHED);
+}
+
+int setup_internal_arrays_and_array_pointers(dataptr dz)
+{
+    return(FINISHED);
+}
+
+int establish_bufptrs_and_extra_buffers(dataptr dz)
+{
+    return(FINISHED);
+}
+
+int read_special_data(char *str,dataptr dz) 
+{
+    return(FINISHED);
+}
+
+int inner_loop
+(int *peakscore,int *descnt,int *in_start_portion,int *least,int *pitchcnt,int windows_in_buf,dataptr dz)
+{
+    return(FINISHED);
+}
+
+int get_process_no(char *prog_identifier_from_cmdline,dataptr dz)
+{
+    return(FINISHED);
+}
+
+
+/******************************** USAGE1 ********************************/
+
+int usage1(void)
+{
+    usage2("distwarp");
+    return(USAGE_ONLY);
+}
+
+/******************************** DBTOLEVEL ***********************/
+
+double dbtolevel(double val)
+{
+    int isneg = 0;
+    if(flteq(val,0.0))
+        return(1.0);
+    if(val < 0.0) {
+        val = -val;
+        isneg = 1;
+    }
+    val /= 20.0;
+    val = pow(10.0,val);
+    if(isneg)
+        val = 1.0/val;
+    return(val);
+}   
+
+/********************************************************************************************/
+
+int get_the_process_no(char *prog_identifier_from_cmdline,dataptr dz)
+{
+    if(!strcmp(prog_identifier_from_cmdline,"distwarp"))                dz->process = DISTWARP;
+    else {
+        sprintf(errstr,"Unknown program identification string '%s'\n",prog_identifier_from_cmdline);
+        return(USAGE_ONLY);
+    }
+    return(FINISHED);
+}
+
+/******************************** SETUP_AND_INIT_INPUT_BRKTABLE_CONSTANTS ********************************/
+
+int setup_and_init_input_brktable_constants(dataptr dz,int brkcnt)
+{   
+    int n;
+    if((dz->brk      = (double **)malloc(brkcnt * sizeof(double *)))==NULL) {
+        sprintf(errstr,"setup_and_init_input_brktable_constants(): 1\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->brkptr   = (double **)malloc(brkcnt * sizeof(double *)))==NULL) {
+        sprintf(errstr,"setup_and_init_input_brktable_constants(): 6\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->brksize  = (int    *)malloc(brkcnt * sizeof(int)))==NULL) {
+        sprintf(errstr,"setup_and_init_input_brktable_constants(): 2\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->firstval = (double  *)malloc(brkcnt * sizeof(double)))==NULL) {
+        sprintf(errstr,"setup_and_init_input_brktable_constants(): 3\n");
+        return(MEMORY_ERROR);                                                 
+    }
+    if((dz->lastind  = (double  *)malloc(brkcnt * sizeof(double)))==NULL) {
+        sprintf(errstr,"setup_and_init_input_brktable_constants(): 4\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->lastval  = (double  *)malloc(brkcnt * sizeof(double)))==NULL) {
+        sprintf(errstr,"setup_and_init_input_brktable_constants(): 5\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->brkinit  = (int     *)malloc(brkcnt * sizeof(int)))==NULL) {
+        sprintf(errstr,"setup_and_init_input_brktable_constants(): 7\n");
+        return(MEMORY_ERROR);
+    }
+    for(n=0;n<brkcnt;n++) {
+        dz->brk[n]     = NULL;
+        dz->brkptr[n]  = NULL;
+        dz->brkinit[n] = 0;
+        dz->brksize[n] = 0;
+    }
+    return(FINISHED);
+}
+
+/******************************** USAGE2 ********************************/
+
+int usage2(char *str)
+{
+    if(!strcmp(str,"distwarp")) {
+        fprintf(stderr,
+        "USAGE:\n"
+        "distwarp distwarp 1 infile outfile warp\n"
+        "distwarp distwarp 2 infile outfile warp wavesetcnt\n"
+        "\n"
+        "Mode 1: warp-multiplier increments samplewise.\n"
+        "Mode 2: warp-multiplier increments wavesetwise.\n"
+        "\n"
+        "WARP        (progressive) sample multiplier (0.0001 to 0.1).\n"
+        "GAIN        Maximum loudness of output.\n"
+        "WAVESETCNT  After how many wavesets does warp value increment.\n"
+        "\n"
+        "\n");
+    } else
+        fprintf(stdout,"Unknown option '%s'\n",str);
+    return(USAGE_ONLY);
+}
+
+int usage3(char *str1,char *str2)
+{
+    fprintf(stderr,"Insufficient parameters on command line.\n");
+    return(USAGE_ONLY);
+}
+
+/******************************** GATE ********************************/
+
+#define ENV_WIN_SIZE 20// mS
+
+int distwarp(dataptr dz)
+{
+    int exit_status, chans = dz->infile->channels, ch, init = 1, initial_phase = 0, phase = 0, waveset_cnt = 0;
+    int bufpos, total_sampgps_processed = 0, i, j, k = 0;
+    float *buf = dz->sampbuf[0];
+    double val, time =0.0, srate = (double)dz->infile->srate, incrval, gain, frac, tdiff, diff, nextgain, thisincr;
+    int envcnt = 0, envsize, partwindow;
+    double maxsamp = 0.0, *env;
+    int winsize = (int)round((ENV_WIN_SIZE * MS_TO_SECS) * srate);
+    if((exit_status = read_values_from_all_existing_brktables(time,dz)) < 0)
+        return exit_status;
+    incrval = dz->param[0];
+
+    envsize = (dz->insams[0]/chans)/winsize;
+    envsize += 2;
+    if((dz->parray = (double **)malloc(sizeof(double *)))==NULL) {
+        sprintf(errstr,"INSUFFICIENT MEMORY for envelope.\n");
+        return(MEMORY_ERROR);
+    }
+    if((dz->parray[0] = (double *)malloc(envsize * sizeof(double)))==NULL) {
+        sprintf(errstr,"INSUFFICIENT MEMORY for envelope storage.\n");
+        return(MEMORY_ERROR);
+    }
+    env = dz->parray[0];
+
+    //  ENVELOPE EXTRACT
+    while(dz->samps_left > 0) {
+        if((exit_status = read_samps(buf,dz))<0)
+            return(exit_status);
+        for(bufpos = 0; bufpos < dz->ssampsread; bufpos += chans) {
+            val = fabs(buf[bufpos]);
+            if(val > maxsamp)
+                maxsamp = val;
+            if(++envcnt > winsize) {
+                env[k++] = maxsamp;
+                maxsamp = 0.0;
+                envcnt = 0;
+            }
+        }
+    }
+    if(envcnt)
+        env[k++] = maxsamp;
+    env[k++] = maxsamp;     //  wraparound pint
+
+    if((sndseekEx(dz->ifd[0],0,0) < 0)){
+        sprintf(errstr,"sndseek failed\n");
+        return SYSTEM_ERROR;
+    }
+    dz->samps_left = dz->insams[0];
+    dz->total_samps_read = 0;
+    switch(dz->mode) {
+    case(0):
+        while(dz->samps_left > 0) {
+            if((exit_status = read_samps(buf,dz))<0)
+                return(exit_status);
+            for(bufpos = 0; bufpos < dz->ssampsread; bufpos += chans) {
+                time = (double)total_sampgps_processed/srate;
+                if(dz->brksize[0]) {
+                    if((exit_status = read_value_from_brktable(time,0,dz)) < 0)
+                        return exit_status;
+                }
+                envcnt = total_sampgps_processed/winsize;   // rounds down
+                gain = env[envcnt];
+                nextgain = env[envcnt+1];
+                partwindow = total_sampgps_processed - (winsize * envcnt);
+                frac = (double)partwindow/(double)winsize;
+                tdiff = nextgain - gain;
+                diff = tdiff * frac;
+                gain += diff;
+                for(ch = 0;ch < chans;ch++) {
+                    val = buf[bufpos+ch] + incrval;
+                    thisincr = val - floor(val);
+                    thisincr = sin(thisincr * PI/2);
+                    val = floor(val) + thisincr;
+                                                //  e.g. 0.2 0.8 1.2 1.8 2.2 2.8 3.2 3.8 4.2 4.8 5.2 5.8 6.2 6.8 7.2 7.8 8.2 8.8 9.2
+                    i = (int)floor(val);
+                    if(ODD(i))                  //       0   0   1   1   2   2   3   3   4   4   5   5   6   6   7   7   8   8   9
+                        i++;                    //       0   0   2   2   2   2   4   4   4   4   6   6   6   6   8   8   8   8   10
+                    j = i/2;                    //       x   x   1   1   1   1   2   2   2   2   3   3   3   3   4   4   4   4   5
+                    if(ODD(j))
+                        val = (double)i - val;      //         0.8 0.2 -0.2 -0.8                0.8 0.2 -0.2 -0.8               0.8 
+                    else
+                        val = val - (double)i;      //  0.2 0.8                 -0.8 -0.2 0.2 0.8               -0.8 -0.2 0.2 0.8
+                    buf[bufpos+ch] = (float)(val * gain);
+                }
+                total_sampgps_processed++;
+                incrval += dz->param[0];
+            }
+            if((exit_status = write_samps(buf,dz->ssampsread,dz))<0)
+                return(exit_status);
+        }
+        break;
+    case(1):
+        while(dz->samps_left > 0) {
+            if((exit_status = read_samps(buf,dz))<0)
+                return(exit_status);
+            for(bufpos = 0; bufpos < dz->ssampsread; bufpos++) {
+                envcnt = total_sampgps_processed/winsize;   // rounds down
+                gain = env[envcnt];
+                nextgain = env[envcnt+1];
+                partwindow = total_sampgps_processed - (winsize * envcnt);
+                frac = (double)partwindow/(double)winsize;
+                tdiff = nextgain - gain;
+                diff = tdiff * frac;
+                gain += diff;
+                if(init) {
+                    if(buf[bufpos] == 0.0)
+                        continue;
+                    else {
+                        if(buf[bufpos] > 0.0)
+                            initial_phase = 1;
+                        else
+                            initial_phase = -1;
+                        phase = initial_phase;
+                        init = 0;
+                    }
+                }
+                switch(initial_phase) {
+                case(1):
+                    if(phase == initial_phase) {
+                        if(buf[bufpos] < 0.0)   //  i.e. phase has changed from 1 (initial_phase) to -1
+                            phase = -phase;     //  Switch phase
+                    } else {
+                        if(buf[bufpos] >= 0.0) { // i.e. phase has changed from -1 to 1
+                            waveset_cnt++;      //  Count waveset
+                            phase = -phase;     //  Switch phase
+                            if(waveset_cnt >= dz->iparam[1]) {
+                                time = (double)total_sampgps_processed/srate;
+                                if((exit_status = read_values_from_all_existing_brktables(time,dz)) < 0)
+                                    return exit_status;
+                                waveset_cnt = 0;
+                                incrval += dz->param[0];
+                            }
+                        }
+                    }
+                    break;
+                case(-1): 
+                    if(phase == initial_phase) {
+                        if(buf[bufpos] >= 0.0)  //  i.e. phase has changed from -1 (initial_phase) to 1
+                            phase = -phase;     //  Switch phase
+                    } else {
+                        if(buf[bufpos] < 0.0) { //  i.e. phase has changed from 1 to -1
+                            waveset_cnt++;      //  Count waveset
+                            phase = -phase;     //  Switch phase
+                            if(waveset_cnt >= dz->iparam[1]) {
+                                time = (double)total_sampgps_processed/srate;
+                                if((exit_status = read_values_from_all_existing_brktables(time,dz)) < 0)
+                                    return exit_status;
+                                waveset_cnt = 0;
+                                incrval += dz->param[0];
+                            }
+                        }
+                    }
+                    break;
+                }
+                val = buf[bufpos] + incrval;
+                                            //  e.g. 0.2 0.8 1.2 1.8 2.2 2.8 3.2 3.8 4.2 4.8 5.2 5.8 6.2 6.8 7.2 7.8 8.2 8.8 9.2
+                i = (int)floor(val);
+                if(ODD(i))                  //       0   0   1   1   2   2   3   3   4   4   5   5   6   6   7   7   8   8   9
+                    i++;                    //       0   0   2   2   2   2   4   4   4   4   6   6   6   6   8   8   8   8   10
+                j = i/2;                    //       x   x   1   1   1   1   2   2   2   2   3   3   3   3   4   4   4   4   5
+                if(ODD(j))
+                    val = (double)i - val;      //         0.8 0.2 -0.2 -0.8                0.8 0.2 -0.2 -0.8               0.8 
+                else
+                    val = val - (double)i;      //  0.2 0.8                 -0.8 -0.2 0.2 0.8               -0.8 -0.2 0.2 0.8
+                buf[bufpos] = (float)(val * gain);
+                total_sampgps_processed++;
+            }
+            if((exit_status = write_samps(buf,dz->ssampsread,dz))<0)
+                return(exit_status);
+        }
+        break;
+    }
+    return FINISHED;
+}
+
+/****************************** GET_MODE *********************************/
+
+int get_the_mode_from_cmdline(char *str,dataptr dz)
+{
+    char temp[200], *p;
+    if(sscanf(str,"%s",temp)!=1) {
+        sprintf(errstr,"Cannot read mode of program.\n");
+        return(USAGE_ONLY);
+    }
+    p = temp + strlen(temp) - 1;
+    while(p >= temp) {
+        if(!isdigit(*p)) {
+            fprintf(stderr,"Invalid mode of program entered.\n");
+            return(USAGE_ONLY);
+        }
+        p--;
+    }
+    if(sscanf(str,"%d",&dz->mode)!=1) {
+        fprintf(stderr,"Cannot read mode of program.\n");
+        return(USAGE_ONLY);
+    }
+    if(dz->mode <= 0 || dz->mode > dz->maxmode) {
+        fprintf(stderr,"Program mode value [%d] is out of range [1 - %d].\n",dz->mode,dz->maxmode);
+        return(USAGE_ONLY);
+    }
+    dz->mode--;     /* CHANGE TO INTERNAL REPRESENTATION OF MODE NO */
+    return(FINISHED);
+}
+