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/* |
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* TOIlet The Other Implementation’s letters |
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* Copyright (c) 2006 Sam Hocevar <sam@zoy.org> |
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* All Rights Reserved |
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* |
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* $Id$ |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the Do What The Fuck You Want To |
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* Public License, Version 2, as published by Sam Hocevar. See |
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* http://sam.zoy.org/wtfpl/COPYING for more details. |
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*/ |
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#include "config.h" |
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#include "common.h" |
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#if !defined(__KERNEL__) |
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# if defined(HAVE_INTTYPES_H) |
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# include <inttypes.h> |
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# endif |
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# if defined(HAVE_GETOPT_H) |
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# include <getopt.h> |
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# endif |
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# include <stdio.h> |
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# include <string.h> |
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# include <stdlib.h> |
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#endif |
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#include "cucul.h" |
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#include "caca.h" |
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/* String to canvas transformations */ |
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static cucul_canvas_t *cuculize_big(uint32_t const *, unsigned int); |
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static cucul_canvas_t *cuculize_tiny(uint32_t const *, unsigned int); |
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/* Canvas special effects */ |
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static void filter_autocrop(cucul_canvas_t *); |
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static void filter_gay(cucul_canvas_t *); |
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int main(int argc, char *argv[]) |
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{ |
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cucul_canvas_t *cv; |
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cucul_buffer_t *buffer; |
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uint32_t *string = NULL; |
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unsigned int length; |
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int i; |
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char const *export = "utf8"; |
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unsigned flag_gay = 0; |
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#if defined(HAVE_GETOPT_H) |
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for(;;) |
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{ |
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# ifdef HAVE_GETOPT_LONG |
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# define MOREINFO "Try `%s --help' for more information.\n" |
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int option_index = 0; |
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static struct option long_options[] = |
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{ |
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/* Long option, needs arg, flag, short option */ |
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{ "gay", 0, NULL, 'g' }, |
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{ "irc", 0, NULL, 'i' }, |
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{ "help", 0, NULL, 'h' }, |
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{ "version", 0, NULL, 'v' }, |
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{ NULL, 0, NULL, 0 } |
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}; |
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int c = getopt_long(argc, argv, "gihv", long_options, &option_index); |
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# else |
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# define MOREINFO "Try `%s -h' for more information.\n" |
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int c = getopt(argc, argv, "gihv"); |
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# endif |
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if(c == -1) |
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break; |
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switch(c) |
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{ |
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case 'h': /* --help */ |
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printf("Usage: %s [ -gihv ] [ message ]\n", argv[0]); |
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# ifdef HAVE_GETOPT_LONG |
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printf(" -g, --gay add a rainbow effect to the text\n"); |
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printf(" -i, --irc output IRC colour codes\n"); |
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printf(" -h, --help display this help and exit\n"); |
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printf(" -v, --version output version information and exit\n"); |
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# else |
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printf(" -g add a rainbow effect to the text\n"); |
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printf(" -i output IRC colour codes\n"); |
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printf(" -h display this help and exit\n"); |
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printf(" -v output version information and exit\n"); |
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# endif |
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return 0; |
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case 'g': /* --gay */ |
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flag_gay = 1; |
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break; |
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case 'i': /* --irc */ |
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export = "irc"; |
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break; |
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case 'v': /* --version */ |
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printf("TOIlet Copyright 2006 Sam Hocevar %s\n", VERSION); |
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printf("Internet: <sam@zoy.org> Version: 0, date: 21 Sep 2006\n"); |
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printf("\n"); |
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return 0; |
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case '?': |
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printf(MOREINFO, argv[0]); |
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return 1; |
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default: |
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printf("%s: invalid option -- %i\n", argv[0], c); |
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printf(MOREINFO, argv[0]); |
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return 1; |
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} |
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} |
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#else |
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# define MOREINFO "Usage: %s message...\n" |
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int optind = 1; |
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#endif |
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if(optind >= argc) |
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{ |
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printf("%s: too few arguments\n", argv[0]); |
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printf(MOREINFO, argv[0]); |
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return 1; |
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} |
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/* Load rest of commandline into a UTF-32 string */ |
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for(i = optind, length = 0; i < argc; i++) |
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{ |
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unsigned int k, guessed_len, real_len; |
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guessed_len = strlen(argv[i]); |
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if(i > optind) |
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string[length++] = (uint32_t)' '; |
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string = realloc(string, (length + guessed_len + 1) * 4); |
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for(k = 0, real_len = 0; k < guessed_len; real_len++) |
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{ |
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unsigned int char_len; |
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string[length + real_len] = |
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cucul_utf8_to_utf32(argv[i] + k, &char_len); |
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k += char_len; |
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} |
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length += real_len; |
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} |
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/* Do gay stuff with our string (léopard) */ |
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cv = cuculize_big(string, length); |
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filter_autocrop(cv); |
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if(flag_gay) |
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filter_gay(cv); |
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/* Output char */ |
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buffer = cucul_export_canvas(cv, export); |
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fwrite(cucul_get_buffer_data(buffer), |
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cucul_get_buffer_size(buffer), 1, stdout); |
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cucul_free_buffer(buffer); |
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cucul_free_canvas(cv); |
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return 0; |
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} |
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static cucul_canvas_t *cuculize_big(uint32_t const *string, |
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unsigned int length) |
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{ |
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cucul_canvas_t *cv; |
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cucul_font_t *f; |
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char const * const * fonts; |
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unsigned char *buf; |
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unsigned int w, h, x, y, miny, maxy; |
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cv = cucul_create_canvas(length, 1); |
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for(x = 0; x < length; x++) |
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cucul_putchar(cv, x, 0, string[x]); |
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fonts = cucul_get_font_list(); |
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f = cucul_load_font(fonts[0], 0); |
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/* Create our bitmap buffer (32-bit ARGB) */ |
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w = cucul_get_canvas_width(cv) * cucul_get_font_width(f); |
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h = cucul_get_canvas_height(cv) * cucul_get_font_height(f); |
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buf = malloc(4 * w * h); |
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/* Render the canvas onto our image buffer */ |
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cucul_render_canvas(cv, f, buf, w, h, 4 * w); |
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/* Free our canvas, and allocate a bigger one */ |
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cucul_free_font(f); |
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cucul_free_canvas(cv); |
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cv = cucul_create_canvas(w, h); |
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/* Render the image buffer on the canvas */ |
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cucul_set_color(cv, CUCUL_COLOR_WHITE, CUCUL_COLOR_TRANSPARENT); |
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cucul_clear_canvas(cv); |
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miny = h; maxy = 0; |
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for(y = 0; y < h; y++) |
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for(x = 0; x < w; x++) |
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{ |
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unsigned char c = buf[4 * (x + y * w) + 2]; |
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if(c >= 0xa0) |
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cucul_putstr(cv, x, y, "█"); |
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else if(c >= 0x80) |
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cucul_putstr(cv, x, y, "▓"); |
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else if(c >= 0x40) |
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cucul_putstr(cv, x, y, "▒"); |
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else if(c >= 0x20) |
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cucul_putstr(cv, x, y, "░"); |
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} |
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free(buf); |
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return cv; |
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} |
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static cucul_canvas_t *cuculize_tiny(uint32_t const *string, |
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unsigned int length) |
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{ |
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unsigned int x; |
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cucul_canvas_t *cv = cucul_create_canvas(length, 1); |
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for(x = 0; x < length; x++) |
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cucul_putchar(cv, x, 0, string[x]); |
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return cv; |
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} |
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static void filter_autocrop(cucul_canvas_t *cv) |
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{ |
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unsigned int x, y, w, h; |
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unsigned int xmin, xmax, ymin, ymax; |
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xmin = w = cucul_get_canvas_width(cv); |
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xmax = 0; |
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ymin = h = cucul_get_canvas_height(cv); |
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ymax = 0; |
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for(y = 0; y < h; y++) |
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for(x = 0; x < w; x++) |
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{ |
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unsigned long int ch = cucul_getchar(cv, x, y); |
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if(ch != (unsigned char)' ') |
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{ |
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if(x < xmin) |
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xmin = x; |
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if(x > xmax) |
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xmax = x; |
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if(y < ymin) |
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ymin = y; |
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if(y > ymax) |
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ymax = y; |
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} |
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} |
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cucul_set_canvas_boundaries(cv, xmin, ymin, |
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xmax - xmin + 1, ymax - ymin + 1); |
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} |
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static void filter_gay(cucul_canvas_t *cv) |
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{ |
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static unsigned char const rainbow[] = |
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{ |
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CUCUL_COLOR_LIGHTMAGENTA, |
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CUCUL_COLOR_LIGHTRED, |
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CUCUL_COLOR_YELLOW, |
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CUCUL_COLOR_LIGHTGREEN, |
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CUCUL_COLOR_LIGHTCYAN, |
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CUCUL_COLOR_LIGHTBLUE, |
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}; |
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unsigned int x, y, w, h; |
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w = cucul_get_canvas_width(cv); |
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h = cucul_get_canvas_height(cv); |
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for(y = 0; y < h; y++) |
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for(x = 0; x < w; x++) |
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{ |
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unsigned long int ch = cucul_getchar(cv, x, y); |
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if(ch != (unsigned char)' ') |
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{ |
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cucul_set_color(cv, rainbow[(x / 2 + y) % 6], |
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CUCUL_COLOR_TRANSPARENT); |
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cucul_putchar(cv, x, y, ch); |
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} |
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} |
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} |
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