src/libs/print/libprint/tools/make_pattern.cpp

   1 /*
   2  * make_pattern.cpp
   3  * Copyright 2000 Y.Takagi All Rights Reserved.
   4  */
   5
   6 #include <iostream>
   7 #include <iomanip>
   8
   9 using namespace std;
  10
  11 #define MAX_HORTZ       4
  12 #define MAX_VERT        4
  13 #define MAX_ELEMENT     (MAX_HORTZ * MAX_VERT)
  14
  15 #include "original_dither_pattern.h"
  16
  17 void create_index_table(const unsigned char *p1, unsigned char *p2)
  18 {
  19         for (int i = 0 ; i < MAX_ELEMENT ; i++) {
  20                 p2[*p1] = i;
  21                 p1++;
  22         }
  23 }
  24
  25 inline int index2horz(int index)
  26 {
  27         return index % MAX_HORTZ;
  28 }
  29
  30 inline int index2vert(int index)
  31 {
  32         return index / MAX_HORTZ;
  33 }
  34
  35 void create_pattern16x16(const unsigned char *pattern4x4, unsigned char *pattern16x16)
  36 {
  37         unsigned char value2index[MAX_ELEMENT];
  38         create_index_table(pattern4x4, value2index);
  39
  40         for (int i = 0 ; i < MAX_ELEMENT ; i++) {
  41                 int index = value2index[i];
  42                 int h = index2horz(index);
  43                 int v = index2vert(index);
  44                 for (int j = 0 ; j < MAX_ELEMENT ; j++) {
  45                         int index2 = value2index[j];
  46                         int h2 = index2horz(index2) * 4 + h;
  47                         int v2 = index2vert(index2) * 4 + v;
  48                         pattern16x16[h2 + v2 * MAX_ELEMENT] = j + i * MAX_ELEMENT;
  49                 }
  50         }
  51 }
  52
  53 void print_pattern(ostream &os, const char *name, const unsigned char *pattern)
  54 {
  55         os << "const unsigned char " << name << "[] = {" << '\n' << '\t';
  56         for (int i = 0 ; i < 256 ; i++) {
  57                 os << setw(3) << (int)pattern[i];
  58                 if (i == MAX_ELEMENT * MAX_ELEMENT - 1) {
  59                         os << '\n';
  60                 } else {
  61                         os << ',';
  62                         if (i % MAX_ELEMENT == MAX_ELEMENT - 1) {
  63                                 os << '\n' << '\t';
  64                         }
  65                 }
  66         }
  67         os << "};" << '\n';
  68 }
  69
  70 int main()
  71 {
  72         unsigned char pattern16x16_type1[MAX_ELEMENT * MAX_ELEMENT];
  73         create_pattern16x16(pattern4x4_type1, pattern16x16_type1);
  74         print_pattern(cout, "pattern16x16_type1", pattern16x16_type1);
  75
  76         cout << endl;
  77
  78         unsigned char pattern16x16_type2[MAX_ELEMENT * MAX_ELEMENT];
  79         create_pattern16x16(pattern4x4_type2, pattern16x16_type2);
  80         print_pattern(cout, "pattern16x16_type2", pattern16x16_type2);
  81
  82         cout << endl;
  83
  84         unsigned char pattern16x16_type3[MAX_ELEMENT * MAX_ELEMENT];
  85         create_pattern16x16(pattern4x4_type3, pattern16x16_type3);
  86         print_pattern(cout, "pattern16x16_type3", pattern16x16_type3);
  87
  88         cout << endl;
  89         return 0;
  90 }