* make_pattern.cpp
* Copyright 2000 Y.Takagi All Rights Reserved.
*/
#include <iostream>
#include <iomanip>
using namespace std;
#define MAX_HORTZ 4
#define MAX_VERT 4
#define MAX_ELEMENT (MAX_HORTZ * MAX_VERT)
#include "original_dither_pattern.h"
void create_index_table(const unsigned char *p1, unsigned char *p2)
{
for (int i = 0 ; i < MAX_ELEMENT ; i++) {
p2[*p1] = i;
p1++;
}
}
inline int index2horz(int index)
{
return index % MAX_HORTZ;
}
inline int index2vert(int index)
{
return index / MAX_HORTZ;
}
void create_pattern16x16(const unsigned char *pattern4x4, unsigned char *pattern16x16)
{
unsigned char value2index[MAX_ELEMENT];
create_index_table(pattern4x4, value2index);
for (int i = 0 ; i < MAX_ELEMENT ; i++) {
int index = value2index[i];
int h = index2horz(index);
int v = index2vert(index);
for (int j = 0 ; j < MAX_ELEMENT ; j++) {
int index2 = value2index[j];
int h2 = index2horz(index2) * 4 + h;
int v2 = index2vert(index2) * 4 + v;
pattern16x16[h2 + v2 * MAX_ELEMENT] = j + i * MAX_ELEMENT;
}
}
}
void print_pattern(ostream &os, const char *name, const unsigned char *pattern)
{
os << "const unsigned char " << name << "[] = {" << '\n' << '\t';
for (int i = 0 ; i < 256 ; i++) {
os << setw(3) << (int)pattern[i];
if (i == MAX_ELEMENT * MAX_ELEMENT - 1) {
os << '\n';
} else {
os << ',';
if (i % MAX_ELEMENT == MAX_ELEMENT - 1) {
os << '\n' << '\t';
}
}
}
os << "};" << '\n';
}
int main()
{
unsigned char pattern16x16_type1[MAX_ELEMENT * MAX_ELEMENT];
create_pattern16x16(pattern4x4_type1, pattern16x16_type1);
print_pattern(cout, "pattern16x16_type1", pattern16x16_type1);
cout << endl;
unsigned char pattern16x16_type2[MAX_ELEMENT * MAX_ELEMENT];
create_pattern16x16(pattern4x4_type2, pattern16x16_type2);
print_pattern(cout, "pattern16x16_type2", pattern16x16_type2);
cout << endl;
unsigned char pattern16x16_type3[MAX_ELEMENT * MAX_ELEMENT];
create_pattern16x16(pattern4x4_type3, pattern16x16_type3);
print_pattern(cout, "pattern16x16_type3", pattern16x16_type3);
cout << endl;
return 0;
}
