- Switched to NAPI-3.0 with XML support
- Fixed exeman to write files by default into the first directory in batchpath - Fixed a bug in nxdict which prevented it from handling attributes containing :/ properly - Removed junk files - Fixed a bug in hklscan.c which made it dump core - Added XML support to nxscript.c - Added support for writing NeXus-XML data files to tasub
This commit is contained in:
koennecke
299
nxdataset.c
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299
nxdataset.c
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/*
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This is a module which implements the notion of a dataset. Its is
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designed for the use with scripting languages.
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copyright: GPL
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Mark Koennecke, October 2002
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "nxdataset.h"
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/*-----------------------------------------------------------------------*/
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static int getTypeSize(int typecode){
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switch(typecode){
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case NX_FLOAT32:
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case NX_INT32:
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case NX_UINT32:
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return 4;
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break;
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case NX_FLOAT64:
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return 8;
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break;
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case NX_INT16:
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case NX_UINT16:
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return 2;
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break;
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default:
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return 1;
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break;
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}
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}
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/*-----------------------------------------------------------------------*/
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pNXDS createNXDataset(int rank, int typecode, int dim[]){
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pNXDS pNew = NULL;
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int i, length;
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pNew = (pNXDS)malloc(sizeof(NXDS));
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if(pNew == NULL){
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return NULL;
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}
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pNew->dim = (int *)malloc(rank*sizeof(int));
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for(i = 0, length = 1; i < rank; i++){
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length *= dim[i];
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}
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pNew->u.ptr = malloc(length*getTypeSize(typecode));
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if(pNew->dim == NULL || pNew->u.ptr == NULL){
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free(pNew);
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return NULL;
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}
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pNew->rank = rank;
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pNew->type = typecode;
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pNew->format = NULL;
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for(i = 0; i < rank; i++){
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pNew->dim[i] = dim[i];
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}
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pNew->magic = MAGIC;
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memset(pNew->u.ptr,0,length*getTypeSize(typecode));
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return pNew;
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}
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/*---------------------------------------------------------------------*/
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pNXDS createTextNXDataset(char *name){
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pNXDS pNew = NULL;
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pNew = (pNXDS)malloc(sizeof(NXDS));
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if(pNew == NULL){
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return NULL;
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}
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pNew->dim = (int *)malloc(sizeof(int));
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pNew->u.cPtr = strdup(name);
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if(pNew->dim == NULL || pNew->u.ptr == NULL){
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free(pNew);
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return NULL;
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}
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pNew->rank = 1;
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pNew->type = NX_CHAR;
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pNew->magic = MAGIC;
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pNew->dim[0] = strlen(name);
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return pNew;
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}
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/*-----------------------------------------------------------------------*/
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void dropNXDataset(pNXDS dataset){
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if(dataset == NULL){
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return;
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}
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if(dataset->magic != MAGIC){
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return;
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}
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if(dataset->dim != NULL){
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free(dataset->dim);
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}
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if(dataset->u.ptr != NULL){
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free(dataset->u.ptr);
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}
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if(dataset->format != NULL){
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free(dataset->format);
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}
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free(dataset);
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}
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/*-----------------------------------------------------------------------*/
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int getNXDatasetRank(pNXDS dataset){
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if(dataset == NULL){
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return 0;
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}
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if(dataset->magic != MAGIC){
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return 0;
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}
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return dataset->rank;
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}
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/*-----------------------------------------------------------------------*/
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int getNXDatasetDim(pNXDS dataset, int which){
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if(dataset == NULL){
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return 0;
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}
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if(dataset->magic != MAGIC){
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return 0;
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}
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if(which < 0 || which >= dataset->rank){
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return 0;
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}
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return dataset->dim[which];
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}
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/*------------------------------------------------------------------------*/
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int getNXDatasetType(pNXDS dataset){
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if(dataset == NULL){
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return 0;
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}
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if(dataset->magic != MAGIC){
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return 0;
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}
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return dataset->type;
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}
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/*--------------------------------------------------------------------*/
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int getNXDatasetLength(pNXDS dataset){
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int length, i;
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if(dataset == NULL){
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return 0;
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}
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if(dataset->magic != MAGIC){
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return 0;
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}
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length = dataset->dim[0];
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for(i = 1; i < dataset->rank; i++){
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length *= dataset->dim[i];
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}
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return length;
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}
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/*---------------------------------------------------------------------*/
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int getNXDatasetByteLength(pNXDS dataset){
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return getNXDatasetLength(dataset)*getTypeSize(dataset->type);
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}
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/*----------------------------------------------------------------------
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This calculates an arbitray address in C storage order
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-----------------------------------------------------------------------*/
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static int calculateAddress(pNXDS dataset, int pos[]){
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int result, mult;
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int i, j;
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result = pos[dataset->rank - 1];
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for(i = 0; i < dataset->rank -1; i++){
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mult = 1;
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for(j = dataset->rank -1; j > i; j--){
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mult *= dataset->dim[j];
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}
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if(pos[i] < dataset->dim[i] && pos[i] > 0){
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result += mult*pos[i];
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}
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}
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return result;
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}
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/*-----------------------------------------------------------------------*/
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double getNXDatasetValue(pNXDS dataset, int pos[]){
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int address;
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double value;
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if(dataset == NULL){
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return 0;
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}
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if(dataset->magic != MAGIC){
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return 0;
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}
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address = calculateAddress(dataset,pos);
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return getNXDatasetValueAt(dataset, address);
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}
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/*----------------------------------------------------------------------*/
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double getNXDatasetValueAt(pNXDS dataset, int address){
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double value;
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if(dataset == NULL){
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return 0;
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}
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if(dataset->magic != MAGIC){
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return 0;
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}
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switch(dataset->type){
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case NX_FLOAT64:
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value = dataset->u.dPtr[address];
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break;
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case NX_FLOAT32:
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value = (double)dataset->u.fPtr[address];
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break;
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case NX_INT32:
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case NX_UINT32:
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value = (double)dataset->u.iPtr[address];
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break;
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case NX_INT16:
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case NX_UINT16:
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value = (double)dataset->u.sPtr[address];
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break;
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default:
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value = (double)dataset->u.cPtr[address];
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break;
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}
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return value;
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}
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/*-----------------------------------------------------------------------*/
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char *getNXDatasetText(pNXDS dataset){
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char *resultBuffer = NULL;
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int length, status = 1;
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if(dataset == NULL){
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status = 0;
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}
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if(dataset->magic != MAGIC){
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status = 0;
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}
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if(dataset->rank > 1){
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status = 0;
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}
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if(dataset->type == NX_FLOAT32 ||
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dataset->type == NX_FLOAT64 ||
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dataset->type == NX_INT32 ||
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dataset->type == NX_UINT32 ||
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dataset->type == NX_INT16 ||
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dataset->type == NX_UINT16 ) {
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status = 0;
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}
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if(status == 0){
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return strdup("NO type problem");
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}else{
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resultBuffer = (char *)malloc((dataset->dim[0]+10)*sizeof(char));
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if(resultBuffer == NULL){
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return strdup("NO Memory");
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}
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memset(resultBuffer,0,(dataset->dim[0]+10)*sizeof(char));
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strncpy(resultBuffer,dataset->u.cPtr,dataset->dim[0]);
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}
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return resultBuffer;
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}
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/*----------------------------------------------------------------------*/
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int putNXDatasetValue(pNXDS dataset, int pos[], double value){
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int address;
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if(dataset == NULL){
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return 0;
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}
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if(dataset->magic != MAGIC){
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return 0;
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}
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address = calculateAddress(dataset,pos);
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return putNXDatasetValueAt(dataset,address,value);
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}
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/*---------------------------------------------------------------------*/
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int putNXDatasetValueAt(pNXDS dataset, int address, double value){
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/*
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this code is dangerous, it casts without checking the data range.
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This may cause trouble in some cases
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*/
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switch(dataset->type){
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case NX_FLOAT64:
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dataset->u.dPtr[address] = value;
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break;
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case NX_FLOAT32:
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dataset->u.fPtr[address] = (float)value;
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break;
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case NX_INT32:
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case NX_UINT32:
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dataset->u.iPtr[address] = (int)value;
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break;
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case NX_INT16:
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case NX_UINT16:
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dataset->u.sPtr[address] = (short int)value;
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break;
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default:
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dataset->u.cPtr[address] = (char)value;
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break;
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}
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return 1;
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}
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