1 | /* |
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2 | * TOIlet The Other Implementation’s letters |
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3 | * Copyright (c) 2006 Sam Hocevar <sam@zoy.org> |
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4 | * All Rights Reserved |
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5 | * |
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6 | * $Id: main.c 1099 2006-09-23 19:27:19Z sam $ |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the Do What The Fuck You Want To |
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10 | * Public License, Version 2, as published by Sam Hocevar. See |
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11 | * http://sam.zoy.org/wtfpl/COPYING for more details. |
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12 | */ |
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13 | |
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14 | #include "config.h" |
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15 | |
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16 | #if defined(HAVE_INTTYPES_H) |
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17 | # include <inttypes.h> |
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18 | #endif |
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19 | #if defined(HAVE_GETOPT_H) |
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20 | # include <getopt.h> |
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21 | #endif |
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22 | #include <stdio.h> |
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23 | #include <string.h> |
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24 | #include <stdlib.h> |
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25 | |
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26 | #include "cucul.h" |
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27 | #include "caca.h" |
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28 | |
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29 | /* String to canvas transformations */ |
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30 | static cucul_canvas_t *cuculize_big(uint32_t const *, unsigned int); |
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31 | static cucul_canvas_t *cuculize_tiny(uint32_t const *, unsigned int); |
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32 | |
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33 | /* Canvas special effects */ |
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34 | static void filter_autocrop(cucul_canvas_t *); |
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35 | static void filter_metal(cucul_canvas_t *); |
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36 | static void filter_gay(cucul_canvas_t *); |
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37 | |
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38 | int main(int argc, char *argv[]) |
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39 | { |
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40 | cucul_canvas_t *cv; |
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41 | cucul_buffer_t *buffer; |
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42 | |
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43 | uint32_t *string = NULL; |
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44 | unsigned int length; |
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45 | |
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46 | int i; |
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47 | |
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48 | char const *export = "utf8"; |
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49 | unsigned flag_gay = 0; |
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50 | unsigned flag_metal = 0; |
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51 | |
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52 | #if defined(HAVE_GETOPT_H) |
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53 | for(;;) |
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54 | { |
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55 | # ifdef HAVE_GETOPT_LONG |
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56 | # define MOREINFO "Try `%s --help' for more information.\n" |
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57 | int option_index = 0; |
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58 | static struct option long_options[] = |
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59 | { |
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60 | /* Long option, needs arg, flag, short option */ |
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61 | { "metal", 0, NULL, 'm' }, |
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62 | { "gay", 0, NULL, 'g' }, |
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63 | { "irc", 0, NULL, 'i' }, |
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64 | { "help", 0, NULL, 'h' }, |
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65 | { "version", 0, NULL, 'v' }, |
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66 | { NULL, 0, NULL, 0 } |
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67 | }; |
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68 | |
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69 | int c = getopt_long(argc, argv, "gmihv", long_options, &option_index); |
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70 | # else |
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71 | # define MOREINFO "Try `%s -h' for more information.\n" |
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72 | int c = getopt(argc, argv, "gmihv"); |
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73 | # endif |
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74 | if(c == -1) |
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75 | break; |
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76 | |
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77 | switch(c) |
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78 | { |
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79 | case 'h': /* --help */ |
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80 | printf("Usage: %s [ -gmihv ] [ message ]\n", argv[0]); |
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81 | # ifdef HAVE_GETOPT_LONG |
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82 | printf(" -g, --gay add a rainbow effect to the text\n"); |
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83 | printf(" -m, --metal add a metal effect to the text\n"); |
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84 | printf(" -i, --irc output IRC colour codes\n"); |
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85 | printf(" -h, --help display this help and exit\n"); |
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86 | printf(" -v, --version output version information and exit\n"); |
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87 | # else |
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88 | printf(" -g add a rainbow effect to the text\n"); |
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89 | printf(" -m add a metal effect to the text\n"); |
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90 | printf(" -i output IRC colour codes\n"); |
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91 | printf(" -h display this help and exit\n"); |
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92 | printf(" -v output version information and exit\n"); |
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93 | # endif |
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94 | return 0; |
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95 | case 'm': /* --metal */ |
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96 | flag_metal = 1; |
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97 | break; |
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98 | case 'g': /* --gay */ |
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99 | flag_gay = 1; |
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100 | break; |
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101 | case 'i': /* --irc */ |
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102 | export = "irc"; |
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103 | break; |
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104 | case 'v': /* --version */ |
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105 | printf("TOIlet Copyright 2006 Sam Hocevar %s\n", VERSION); |
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106 | printf("Internet: <sam@zoy.org> Version: 0, date: 21 Sep 2006\n"); |
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107 | printf("\n"); |
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108 | return 0; |
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109 | case '?': |
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110 | printf(MOREINFO, argv[0]); |
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111 | return 1; |
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112 | default: |
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113 | printf("%s: invalid option -- %i\n", argv[0], c); |
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114 | printf(MOREINFO, argv[0]); |
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115 | return 1; |
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116 | } |
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117 | } |
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118 | #else |
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119 | # define MOREINFO "Usage: %s message...\n" |
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120 | int optind = 1; |
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121 | #endif |
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122 | |
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123 | if(optind >= argc) |
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124 | { |
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125 | printf("%s: too few arguments\n", argv[0]); |
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126 | printf(MOREINFO, argv[0]); |
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127 | return 1; |
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128 | } |
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129 | |
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130 | /* Load rest of commandline into a UTF-32 string */ |
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131 | for(i = optind, length = 0; i < argc; i++) |
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132 | { |
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133 | unsigned int k, guessed_len, real_len; |
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134 | |
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135 | guessed_len = strlen(argv[i]); |
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136 | |
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137 | if(i > optind) |
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138 | string[length++] = (uint32_t)' '; |
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139 | |
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140 | string = realloc(string, (length + guessed_len + 1) * 4); |
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141 | |
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142 | for(k = 0, real_len = 0; k < guessed_len; real_len++) |
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143 | { |
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144 | unsigned int char_len; |
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145 | |
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146 | string[length + real_len] = |
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147 | cucul_utf8_to_utf32(argv[i] + k, &char_len); |
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148 | |
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149 | k += char_len; |
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150 | } |
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151 | |
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152 | length += real_len; |
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153 | } |
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154 | |
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155 | /* Do gay stuff with our string (léopard) */ |
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156 | cv = cuculize_big(string, length); |
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157 | filter_autocrop(cv); |
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158 | if(flag_metal) |
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159 | filter_metal(cv); |
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160 | if(flag_gay) |
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161 | filter_gay(cv); |
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162 | |
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163 | /* Output char */ |
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164 | buffer = cucul_export_canvas(cv, export); |
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165 | fwrite(cucul_get_buffer_data(buffer), |
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166 | cucul_get_buffer_size(buffer), 1, stdout); |
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167 | cucul_free_buffer(buffer); |
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168 | |
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169 | cucul_free_canvas(cv); |
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170 | |
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171 | return 0; |
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172 | } |
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173 | |
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174 | static cucul_canvas_t *cuculize_big(uint32_t const *string, |
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175 | unsigned int length) |
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176 | { |
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177 | cucul_canvas_t *cv; |
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178 | cucul_font_t *f; |
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179 | char const * const * fonts; |
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180 | unsigned char *buf; |
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181 | unsigned int w, h, x, y, miny, maxy; |
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182 | |
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183 | cv = cucul_create_canvas(length, 1); |
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184 | for(x = 0; x < length; x++) |
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185 | cucul_putchar(cv, x, 0, string[x]); |
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186 | |
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187 | fonts = cucul_get_font_list(); |
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188 | f = cucul_load_font(fonts[0], 0); |
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189 | |
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190 | /* Create our bitmap buffer (32-bit ARGB) */ |
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191 | w = cucul_get_canvas_width(cv) * cucul_get_font_width(f); |
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192 | h = cucul_get_canvas_height(cv) * cucul_get_font_height(f); |
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193 | buf = malloc(4 * w * h); |
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194 | |
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195 | /* Render the canvas onto our image buffer */ |
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196 | cucul_render_canvas(cv, f, buf, w, h, 4 * w); |
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197 | |
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198 | /* Free our canvas, and allocate a bigger one */ |
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199 | cucul_free_font(f); |
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200 | cucul_free_canvas(cv); |
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201 | cv = cucul_create_canvas(w, h); |
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202 | |
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203 | /* Render the image buffer on the canvas */ |
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204 | cucul_set_color(cv, CUCUL_COLOR_WHITE, CUCUL_COLOR_TRANSPARENT); |
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205 | cucul_clear_canvas(cv); |
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206 | |
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207 | miny = h; maxy = 0; |
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208 | |
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209 | for(y = 0; y < h; y++) |
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210 | for(x = 0; x < w; x++) |
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211 | { |
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212 | unsigned char c = buf[4 * (x + y * w) + 2]; |
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213 | |
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214 | if(c >= 0xa0) |
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215 | cucul_putstr(cv, x, y, "█"); |
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216 | else if(c >= 0x80) |
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217 | cucul_putstr(cv, x, y, "▓"); |
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218 | else if(c >= 0x40) |
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219 | cucul_putstr(cv, x, y, "▒"); |
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220 | else if(c >= 0x20) |
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221 | cucul_putstr(cv, x, y, "░"); |
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222 | } |
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223 | |
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224 | free(buf); |
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225 | |
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226 | return cv; |
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227 | } |
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228 | |
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229 | static cucul_canvas_t *cuculize_tiny(uint32_t const *string, |
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230 | unsigned int length) |
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231 | { |
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232 | unsigned int x; |
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233 | cucul_canvas_t *cv = cucul_create_canvas(length, 1); |
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234 | |
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235 | for(x = 0; x < length; x++) |
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236 | cucul_putchar(cv, x, 0, string[x]); |
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237 | |
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238 | return cv; |
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239 | } |
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240 | |
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241 | static void filter_autocrop(cucul_canvas_t *cv) |
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242 | { |
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243 | unsigned int x, y, w, h; |
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244 | unsigned int xmin, xmax, ymin, ymax; |
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245 | |
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246 | xmin = w = cucul_get_canvas_width(cv); |
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247 | xmax = 0; |
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248 | ymin = h = cucul_get_canvas_height(cv); |
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249 | ymax = 0; |
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250 | |
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251 | for(y = 0; y < h; y++) |
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252 | for(x = 0; x < w; x++) |
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253 | { |
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254 | unsigned long int ch = cucul_getchar(cv, x, y); |
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255 | if(ch != (unsigned char)' ') |
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256 | { |
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257 | if(x < xmin) |
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258 | xmin = x; |
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259 | if(x > xmax) |
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260 | xmax = x; |
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261 | if(y < ymin) |
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262 | ymin = y; |
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263 | if(y > ymax) |
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264 | ymax = y; |
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265 | } |
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266 | } |
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267 | |
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268 | cucul_set_canvas_boundaries(cv, xmin, ymin, |
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269 | xmax - xmin + 1, ymax - ymin + 1); |
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270 | } |
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271 | |
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272 | static void filter_metal(cucul_canvas_t *cv) |
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273 | { |
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274 | static struct |
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275 | { |
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276 | char ch[6]; |
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277 | unsigned char fg, bg; |
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278 | } |
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279 | const palette[] = |
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280 | { |
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281 | { " ", CUCUL_COLOR_LIGHTBLUE, CUCUL_COLOR_LIGHTBLUE }, |
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282 | { "░", CUCUL_COLOR_BLUE, CUCUL_COLOR_LIGHTBLUE }, |
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283 | { "▒", CUCUL_COLOR_BLUE, CUCUL_COLOR_LIGHTBLUE }, |
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284 | { "░", CUCUL_COLOR_LIGHTBLUE, CUCUL_COLOR_BLUE }, |
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285 | { " ", CUCUL_COLOR_BLUE, CUCUL_COLOR_BLUE }, |
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286 | { " ", CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_LIGHTGRAY }, |
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287 | { "░", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_LIGHTGRAY }, |
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288 | { "▒", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_LIGHTGRAY }, |
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289 | { "░", CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_DARKGRAY }, |
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290 | { " ", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_DARKGRAY }, |
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291 | }; |
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292 | |
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293 | unsigned int x, y, w, h; |
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294 | |
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295 | w = cucul_get_canvas_width(cv); |
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296 | h = cucul_get_canvas_height(cv); |
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297 | |
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298 | for(y = 0; y < h; y++) |
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299 | for(x = 0; x < w; x++) |
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300 | { |
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301 | int i; |
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302 | |
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303 | if(cucul_getchar(cv, x, y) == (unsigned char)' ') |
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304 | continue; |
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305 | |
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306 | i = y * 10 / h; |
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307 | cucul_set_color(cv, palette[i].fg, palette[i].bg); |
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308 | cucul_putstr(cv, x, y, palette[i].ch); |
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309 | } |
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310 | } |
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311 | |
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312 | static void filter_gay(cucul_canvas_t *cv) |
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313 | { |
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314 | static unsigned char const rainbow[] = |
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315 | { |
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316 | CUCUL_COLOR_LIGHTMAGENTA, |
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317 | CUCUL_COLOR_LIGHTRED, |
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318 | CUCUL_COLOR_YELLOW, |
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319 | CUCUL_COLOR_LIGHTGREEN, |
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320 | CUCUL_COLOR_LIGHTCYAN, |
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321 | CUCUL_COLOR_LIGHTBLUE, |
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322 | }; |
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323 | unsigned int x, y, w, h; |
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324 | |
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325 | w = cucul_get_canvas_width(cv); |
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326 | h = cucul_get_canvas_height(cv); |
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327 | |
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328 | for(y = 0; y < h; y++) |
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329 | for(x = 0; x < w; x++) |
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330 | { |
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331 | unsigned long int ch = cucul_getchar(cv, x, y); |
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332 | if(ch != (unsigned char)' ') |
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333 | { |
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334 | cucul_set_color(cv, rainbow[(x / 2 + y) % 6], |
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335 | CUCUL_COLOR_TRANSPARENT); |
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336 | cucul_putchar(cv, x, y, ch); |
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337 | } |
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338 | } |
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339 | } |
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340 | |
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