-#include "ioutils.h"
-#include <string.h>
-#include <stdio.h>
-
-// Check if array == refArray
-void compareArray(const char* ID, const void* array, const void* refArray, mwSize size, int isInteger)
-{
- Real EPS = 1e-5; //precision
- printf("Checking %s\n",ID);
- Real maxError = 0.0;
- for (mwSize i=0; i<size; i++)
- {
- Real error = isInteger
- ? fabs(((Int*)array)[i] - ((Int*)refArray)[i])
- : fabs(((Real*)array)[i] - ((Real*)refArray)[i]);
- if (error >= maxError)
- maxError = error;
- }
- if (maxError >= EPS)
- printf(" Inaccuracy: max(abs(error)) = %g >= %g\n",maxError,EPS);
- else
- printf(" OK\n");
-}
-
-// Next function is a generalization of :
-//~ Real* brToMatlabArray(Real* brArray, int dimX, int dimY, int dimZ, int dimW)
-//~ {
- //~ Real* matlabArray = (Real*)malloc(dimX*dimY*dimZ*dimW*sizeof(Real));
- //~ for (int u=0; u<dimX*dimY*dimZ*dimW; u++)
- //~ {
- //~ int xIndex = u / (dimY*dimZ*dimW);
- //~ int yIndex = (u % (dimY*dimZ*dimW)) / (dimZ*dimW);
- //~ int zIndex = (u % (dimZ*dimW)) / dimW;
- //~ int wIndex = u % dimW;
- //~ matlabArray[xIndex+yIndex*dimX+zIndex*dimX*dimY+wIndex*dimX*dimY*dimZ] = brArray[u];
- //~ }
- //~ return matlabArray;
-//~ }
-
-// Auxiliary to convert from ours ("by-rows") encoding to MATLAB
-void* brToMatlabArray(const void* brArray, const mwSize* dimensions, int nbDims, int isInteger)
-{
- mwSize totalDim = 1;
- for (int i=0; i<nbDims; i++)
- totalDim *= dimensions[i];
- size_t elementSize = isInteger
- ? sizeof(Int)
- : sizeof(Real);
-
- void* matlabArray = malloc(totalDim*elementSize);
- for (mwSize u=0; u<totalDim; u++)
- {
- mwSize prodDimLeft = totalDim;
- mwSize prodDimRight = totalDim / dimensions[0];
- mwSize prodDimInIndex = 1;
- mwSize index = 0;
- for (int v=0; v<nbDims; v++)
- {
- index += ((u % prodDimLeft) / prodDimRight) * prodDimInIndex;
- prodDimInIndex *= dimensions[v];
- prodDimLeft /= dimensions[v];
- if (v+1 < nbDims)
- prodDimRight /= dimensions[v+1];
- }
- if (isInteger)
- ((Int*)matlabArray)[index] = ((Int*)brArray)[u];
- else
- ((Real*)matlabArray)[index] = ((Real*)brArray)[u];
- }
- return matlabArray;
-}
-
-// Next function is a generalization of :
-//~ Real* matlabToBrArray(Real* matlabArray, int dimX, int dimY, int dimZ, int dimU)
-//~ {
- //~ Real* brArray = (Real*)malloc(dimX*dimY*dimZ*dimU*sizeof(Real));
- //~ for (int u=0; u<dimX*dimY*dimZ*dimU; u++)
- //~ {
- //~ int xIndex = u % dimX;
- //~ int yIndex = (u % (dimX*dimY)) / dimX;
- //~ int zIndex = (u % (dimX*dimY*dimZ)) / (dimX*dimY);
- //~ int uIndex = u / (dimX*dimY*dimZ);
- //~ brArray[xIndex*dimY*dimZ*dimU+yIndex*dimZ*dimU+zIndex*dimU+uIndex] = matlabArray[u];
- //~ }
- //~ return brArray;
-//~ }
-
-// Auxiliary to convert from MATLAB encoding to ours ("by-rows")
-void* matlabToBrArray(const void* matlabArray, const mwSize* dimensions, int nbDims, int isInteger)
-{
- mwSize totalDim = 1;
- for (int i=0; i<nbDims; i++)
- totalDim *= dimensions[i];
- size_t elementSize = isInteger
- ? sizeof(Int)
- : sizeof(Real);
-
- void* brArray = malloc(totalDim*elementSize);
- for (mwSize u=0; u<totalDim; u++)
- {
- mwSize prodDimLeft = dimensions[0];
- mwSize prodDimRight = 1;
- mwSize prodDimInIndex = totalDim / dimensions[0];
- mwSize index = 0;
- for (int v=0; v<nbDims; v++)
- {
- index += ((u % prodDimLeft) / prodDimRight) * prodDimInIndex;
- if (v+1 < nbDims)
- {
- prodDimInIndex /= dimensions[v+1];
- prodDimLeft *= dimensions[v+1];
- }
- prodDimRight *= dimensions[v];
- }
- if (isInteger)
- ((Int*)brArray)[index] = ((Int*)matlabArray)[u];
- else
- ((Real*)brArray)[index] = ((Real*)matlabArray)[u];
- }
- return brArray;
-}
-
-// Read array by columns (as in MATLAB) and return by-rows encoding
-void* readArray(const char* fileName, const mwSize* dimensions, int nbDims, int isInteger)
-{
- // need to prepend '../data/' (not really nice code...)
- char* fullFileName = (char*)calloc(8+strlen(fileName)+1,sizeof(char));
- strcat(fullFileName, "../data/");
- strcat(fullFileName, fileName);
- FILE* file = fopen(fullFileName, "r");
- free(fullFileName);
-
- mwSize totalDim = 1;
- for (int i=0; i<nbDims; i++)
- totalDim *= dimensions[i];
- size_t elementSize = isInteger
- ? sizeof(Int)
- : sizeof(Real);
-
- // read all values, and convert them to by-rows matrices format
- void* matlabArray = malloc(totalDim*elementSize);
- char curChar = ' ';
- char bufferNum[64];
- for (mwSize u=0; u<totalDim; u++)
- {
- // position to next non-separator character
- while (!feof(file) && (curChar==' ' || curChar=='\n' || curChar=='\t' || curChar==','))
- curChar = fgetc(file);
- // read number (as a string)
- int bufferIndex = 0;
- while (!feof(file) && curChar!=' ' && curChar!='\n' && curChar!='\t' && curChar!=',')
- {
- bufferNum[bufferIndex++] = curChar;
- curChar = fgetc(file);
- }
- bufferNum[bufferIndex] = 0;
- // transform string into Real, and store it at appropriate location
- if (isInteger)
- ((Int*)matlabArray)[u] = atoi(bufferNum);
- else
- ((Real*)matlabArray)[u] = atof(bufferNum);
- }
- fclose(file);
-
- void* brArray = matlabToBrArray(matlabArray, dimensions, nbDims, isInteger);
- free(matlabArray);
- return brArray;
-}