pointers for filters fixed

src/prog.c

@@ -119,7 +119,7 @@ getDataFromSplitBinary (FILE *f, Matrix *ret)
 }
 
 static int
-readFilterFromFile (int isSmooth, int n, float *filter, int *filterlength)
+readFilterFromFile (int isSmooth, int n, float **filter, int *filterlength)
 {
     char filtname[64];
     if (n != 0)
@@ -139,11 +139,11 @@ readFilterFromFile (int isSmooth, int n, float *filter, int *filterlength)
     size_t size = ftell (f) / sizeof(float);
     rewind (f);
 
-    filter = (float*) malloc (size * sizeof (float));
+    *filter = (float*) malloc (size * sizeof (float));
 
-    fread (filter, sizeof(float), size, f);
+    fread (*filter, sizeof(float), size, f);
 
-    printf("%f\n", filter[0]);
+    printf("%f\n", *filter[0]);
 
     *filterlength = size;
 
@@ -392,7 +392,7 @@ filterData (int decimFactor, int isSmooth, Matrix * const input, Matrix *decimOu
 
     float *filter;
     int filterlength = 0;
-    readFilterFromFile (isSmooth, decimFactor, filter, &filterlength);
+    readFilterFromFile (isSmooth, decimFactor, &filter, &filterlength);
         printf("%f\n", filter[0]);
 
     int length = input->width * input->height;