comparison toolboxes/FullBNT-1.0.7/bnt/potentials/Tables/divide_by_table.c @ 0:e9a9cd732c1e tip

first hg version after svn

+/* divide_by_table.c  ../potential/tables  */
+
+
+/******************************************/
+/* 6 input & 1 output                     */
+/* Big table    [0]                       */
+/* Big domain   [1]                       */
+/* big sizes    [2]                       */
+/* Small table  [3]                       */
+/* small domain [4]                       */
+/* small sizes  [5]                       */
+/*                                        */
+/* New big table[0]                       */
+/******************************************/
+
+#include "mex.h"
+
+void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]){
+	int     i, j, count, NB, NS, siz_b, siz_s, ndim, temp;
+	int     *mask, *sx, *sy, *cpsy, *subs, *s, *cpsy2;
+	double  *pbDomain, *psDomain, *sp, *zp, *bs, value;
+
+	plhs[0] = mxDuplicateArray(prhs[0]);
+	zp = mxGetPr(plhs[0]);
+
+	siz_b = mxGetNumberOfElements(prhs[1]);
+	siz_s = mxGetNumberOfElements(prhs[4]);
+	pbDomain = mxGetPr(prhs[1]);
+	psDomain = mxGetPr(prhs[4]);
+
+	NB = mxGetNumberOfElements(prhs[0]);
+	NS = mxGetNumberOfElements(prhs[3]);
+	sp = mxGetPr(prhs[3]);
+
+	bs = mxGetPr(prhs[2]);
+
+	if(NS == 1){
+		value = *sp;
+		if(value == 0) value = 1;
+		for(i=0; i<NB; i++){
+			zp[i] /= value;
+		}
+		return;
+	}
+
+	if(NS == NB){
+		for(i=0; i<NB; i++){
+			value = sp[i];
+			if(value == 0) value = 1;
+			zp[i] /= value;
+		}
+		return;
+	}
+
+	mask = malloc(siz_s * sizeof(int));
+	count = 0;
+	for(i=0; i<siz_s; i++){
+		for(j=0; j<siz_b; j++){
+			if(psDomain[i] == pbDomain[j]){
+				mask[count] = j;
+				count++;
+				break;
+			}
+		}
+	}
+	
+	ndim = siz_b;
+	sx = (int *)malloc(sizeof(int)*ndim);
+	sy = (int *)malloc(sizeof(int)*ndim);
+	for(i=0; i<ndim; i++){
+		sx[i] = (int)bs[i];
+		sy[i] = 1;
+	}
+	for(i=0; i<count; i++){
+		temp = mask[i];
+		sy[temp] = sx[temp];
+	}
+
+	s = (int *)malloc(sizeof(int)*ndim);
+	*(cpsy = (int *)malloc(sizeof(int)*ndim)) = 1;
+	subs =   (int *)malloc(sizeof(int)*ndim);
+	cpsy2 =  (int *)malloc(sizeof(int)*ndim);
+	for(i = 0; i < ndim; i++){
+		subs[i] = 0;
+		s[i] = sx[i] - 1;
+	}
+			
+	for(i = 0; i < ndim-1; i++){
+		cpsy[i+1] = cpsy[i]*sy[i]--;
+		cpsy2[i] = cpsy[i]*sy[i];
+	}
+	cpsy2[ndim-1] = cpsy[ndim-1]*(--sy[ndim-1]);
+
+	for(j=0; j<NB; j++){
+		value = *sp;
+		if(value == 0) value = 1;
+		*zp++ /= value;
+		for(i = 0; i < ndim; i++){
+			if(subs[i] == s[i]){
+				subs[i] = 0;
+				if(sy[i])
+					sp -= cpsy2[i];
+			}
+			else{
+				subs[i]++;
+				if(sy[i])
+					sp += cpsy[i];
+				break;
+			}
+		}
+	}
+	free(sx);
+	free(sy);
+	free(s);
+	free(cpsy);
+	free(subs);
+	free(cpsy2);
+    free(mask);
+}
+