Add functions to create blc_dims

include/blc_array.h

@@ -33,8 +33,15 @@
 typedef struct blc_dim {
     size_t length; ///<number of element for the dimension
     size_t step; ///< shift in bytes to do to pass from one element of this dimension to the next one
+    
+
 } blc_dim;
 
+START_EXTERN_C
+blc_dim *vcreate_blc_dims(size_t *size, uint32_t type, int dims_nb, int length, va_list arguments);
+
+blc_dim *create_blc_dims(size_t *size, uint32_t type, int dims_nb, int length0, ...);
+END_EXTERN_C
 
 ///Description of a n-dimensional array with type and format
 typedef struct blc_array
@@ -138,10 +145,10 @@ typedef struct blc_array
     {
         blc_mem mem; ///< raw memory of the array
 #endif
-        blc_dim * dims; ///< array of dimentions of the blc_array
-        int dims_nb; ///< number of dimension of the blc_array
         uint32_t type; ///< type of data in the memory as a unsigned int of 4 bytes. Possibilities are 'UIN8' uchar, 'INT8' char, 'UI16' uint16_t, 'IN16' int16_t, 'UI32' uint32_t, 'IN32' int32_t, 'FL32' float, 'FL64' double
         uint32_t format; ///< describes how the data should be interpreted. 'NDEF' (no specification), 'TEXT' for strings, 'Y800' black and white image, 'RGB3' image in RGB, 'LPCM' sound in non compressed format, ...
+        blc_dim * dims; ///< array of dimentions of the blc_array
+        int dims_nb; ///< number of dimension of the blc_array
         size_t total_length; ///<Total number of elements in the array. This differ of size if an element is bigger than one byte.
     } blc_array;
     

src/blc_array.cpp

@@ -24,6 +24,35 @@
 #include <signal.h> //raise
 #include <stdio.h> //fopen
 
+START_EXTERN_C
+blc_dim *vcreate_blc_dims(size_t *size, uint32_t type, int dims_nb, int length, va_list arguments){
+    blc_dim *dim, *dims;
+    
+    dims=MANY_ALLOCATIONS(dims_nb, blc_dim);
+    *size=blc_get_type_size(type);
+    
+    FOR_EACH(dim, dims, dims_nb){
+        dim->step=*size;
+        (*size)*=length;
+        dim->length=length;
+        length=va_arg(arguments, int);
+    }
+    
+    return dims;
+}
+
+blc_dim *create_blc_dims(size_t *size, uint32_t type, int dims_nb, int length0, ...){
+    blc_dim *dims;
+    va_list arguments;
+    va_start(arguments, length0);
+    
+    dims=vcreate_blc_dims(size, type, dims_nb, length0, arguments);
+    
+    va_end(arguments);
+    return dims;
+}
+END_EXTERN_C
+
 blc_array::blc_array():type('NDEF'), format('NDEF'), dims(NULL), dims_nb(0), total_length(0){}
 
 blc_array::blc_array(uint32_t type, uint32_t format, int dims_nb, int length0, ...){
@@ -40,23 +69,11 @@ blc_array::~blc_array(){
 }
 
 void blc_array::vdef_array(uint32_t type, uint32_t format, int dims_nb, int length, va_list arguments){
-    blc_dim *dim;
-    
     total_length=1;
     this->dims_nb=dims_nb;
     this->type=type;
     this->format=format;
-    dims=MANY_ALLOCATIONS(dims_nb, blc_dim);
-    
-    size=get_type_size();
-    
-    FOR_EACH(dim, dims, dims_nb)
-    {
-        dim->step=size;
-        size*=length;
-        dim->length=length;
-        length=va_arg(arguments, int);
-    }
+    dims=vcreate_blc_dims(&size, type, dims_nb, length, arguments);
     total_length=size/get_type_size();
 }
 
@@ -543,6 +560,10 @@ void blc_array::fprint_surface_uchars(FILE *file, int ansi_terminal){
 
 /* C wrapper */
 START_EXTERN_C
+
+
+
+
 void blc_array_def(blc_array *array,  uint32_t type, uint32_t format, int dims_nb, int length0, ...){
     va_list arguments;