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@@ -1,7 +1,10 @@ |
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#!/usr/bin/php5 |
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<?php |
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/* |
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* img2txt image to text converter |
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* Copyright (c) 2008 Benjamin C. Wiley Sittler <bsittler@gmail.com> |
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* |
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* This file is a Php port of "src/img2txt.c" |
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* which is: |
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* Copyright (c) 2006 Sam Hocevar <sam@zoy.org> |
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* 2007 Jean-Yves Lamoureux <jylam@lnxscene.org> |
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* All Rights Reserved |
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@@ -15,9 +18,29 @@ |
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* http://sam.zoy.org/wtfpl/COPYING for more details. |
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*/ |
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if (php_sapi_name() != "cli") { |
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die("You have to run this program with php-cli!\n"); |
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$img2txt_php = isset($_SERVER['SCRIPT_NAME']) |
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? |
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$_SERVER['SCRIPT_NAME'] |
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: |
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'img2txt.php'; |
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$argv = array(basename($img2txt_php)); |
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$args = ''; |
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if(isset($_REQUEST['args'])) |
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{ |
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$args = $_REQUEST['args']; |
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} |
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$args=trim($args); |
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if(strlen($args)) |
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{ |
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foreach(explode(' ', $args) as $arg) |
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{ |
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$argv[] = $arg; |
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} |
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} |
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$argc = count($argv); |
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$stderr = ''; |
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$stdout = ''; |
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class MygetoptException extends Exception |
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{ |
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@@ -197,37 +220,39 @@ function mygetopt($shortopts, $longopts) |
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function usage($argc, $argv) |
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{ |
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fprintf(STDERR, "Usage: %s [OPTIONS]... <IMAGE>\n", $argv[0]); |
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fprintf(STDERR, "Convert IMAGE to any text based available format.\n"); |
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fprintf(STDERR, "Example : %s -w 80 -f ansi ./caca.png\n\n", $argv[0]); |
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fprintf(STDERR, "Options:\n"); |
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fprintf(STDERR, " -h, --help\t\t\tThis help\n"); |
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fprintf(STDERR, " -v, --version\t\t\tVersion of the program\n"); |
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fprintf(STDERR, " -W, --width=WIDTH\t\tWidth of resulting image\n"); |
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fprintf(STDERR, " -H, --height=HEIGHT\t\tHeight of resulting image\n"); |
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fprintf(STDERR, " -x, --font-width=WIDTH\t\tWidth of output font\n"); |
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fprintf(STDERR, " -y, --font-height=HEIGHT\t\tHeight of output font\n"); |
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fprintf(STDERR, " -b, --brightness=BRIGHTNESS\tBrightness of resulting image\n"); |
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fprintf(STDERR, " -c, --contrast=CONTRAST\tContrast of resulting image\n"); |
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fprintf(STDERR, " -g, --gamma=GAMMA\t\tGamma of resulting image\n"); |
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fprintf(STDERR, " -d, --dither=DITHER\t\tDithering algorithm to use :\n"); |
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global $stderr; |
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$stderr .= sprintf("Usage: %s [OPTIONS]... <IMAGE>\n", $argv[0]); |
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$stderr .= sprintf("Convert IMAGE to any text based available format.\n"); |
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$stderr .= sprintf("Example : %s -w 80 -f ansi ./caca.png\n\n", $argv[0]); |
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$stderr .= sprintf("Options:\n"); |
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$stderr .= sprintf(" -h, --help\t\t\tThis help\n"); |
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$stderr .= sprintf(" -v, --version\t\t\tVersion of the program\n"); |
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$stderr .= sprintf(" -W, --width=WIDTH\t\tWidth of resulting image\n"); |
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$stderr .= sprintf(" -H, --height=HEIGHT\t\tHeight of resulting image\n"); |
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$stderr .= sprintf(" -x, --font-width=WIDTH\t\tWidth of output font\n"); |
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$stderr .= sprintf(" -y, --font-height=HEIGHT\t\tHeight of output font\n"); |
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$stderr .= sprintf(" -b, --brightness=BRIGHTNESS\tBrightness of resulting image\n"); |
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$stderr .= sprintf(" -c, --contrast=CONTRAST\tContrast of resulting image\n"); |
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$stderr .= sprintf(" -g, --gamma=GAMMA\t\tGamma of resulting image\n"); |
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$stderr .= sprintf(" -d, --dither=DITHER\t\tDithering algorithm to use :\n"); |
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$list = caca_get_dither_algorithm_list(caca_create_dither(imagecreate(1, 1))); |
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foreach($list as $type => $name) |
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{ |
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fprintf(STDERR, "\t\t\t%s: %s\n", $type, $name); |
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$stderr .= sprintf("\t\t\t%s: %s\n", $type, $name); |
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} |
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fprintf(STDERR, " -f, --format=FORMAT\t\tFormat of the resulting image :\n"); |
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$stderr .= sprintf(" -f, --format=FORMAT\t\tFormat of the resulting image :\n"); |
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$list = caca_get_export_list(); |
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foreach($list as $type => $name) |
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{ |
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fprintf(STDERR, "\t\t\t%s: %s\n", $type, $name); |
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$stderr .= sprintf("\t\t\t%s: %s\n", $type, $name); |
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} |
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} |
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function version() |
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{ |
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printf( |
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global $stdout; |
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$stdout .= sprintf( |
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"img2txt Copyright 2006-2007 Sam Hocevar and Jean-Yves Lamoureux\n" . |
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"Internet: <sam@zoy.org> <jylam@lnxscene.org> Version: %s\n" . |
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"\n" . |
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@@ -241,6 +266,7 @@ function version() |
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function main() |
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{ |
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global $argc, $argv; |
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global $stderr; |
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$cols = 0; |
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$lines = 0; |
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$font_width = 6; |
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@@ -263,59 +289,77 @@ function main() |
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"version" => 'v' |
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); |
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while($opt_and_arg = mygetopt("W:H:f:d:g:b:c:hvx:y:", array_keys($long_options))) |
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{ |
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$opt = $opt_and_arg[0]; |
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$arg = $opt_and_arg[1]; |
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if((substr($opt, 0, 2) == '--') |
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&& |
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array_key_exists(substr($opt, strlen('--')) . (($arg !== NULL) ? ':' : ''), $long_options)) |
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{ |
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$opt = '-' . $long_options[substr($opt, strlen('--')) . (($arg !== NULL) ? ':' : '')]; |
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} |
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switch($opt) |
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try { |
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while($opt_and_arg = mygetopt("W:H:f:d:g:b:c:hvx:y:", array_keys($long_options))) |
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{ |
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case '-W': /* --width */ |
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$cols = intval($arg); |
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break; |
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case '-H': /* --height */ |
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$lines = intval($arg); |
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break; |
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case '-x': /* --width */ |
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$font_width = intval($arg); |
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break; |
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case '-y': /* --height */ |
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$font_height = intval($arg); |
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break; |
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case '-f': /* --format */ |
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$format = $arg; |
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break; |
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case '-d': /* --dither */ |
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$dither = $arg; |
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break; |
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case '-g': /* --gamma */ |
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$gamma = floatval($arg); |
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break; |
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case '-b': /* --brightness */ |
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$brightness = floatval($arg); |
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break; |
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case '-c': /* --contrast */ |
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$contrast = floatval($arg); |
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break; |
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case '-h': /* --help */ |
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usage($argc, $argv); |
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return 0; |
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case '-v': /* --version */ |
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version(); |
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return 0; |
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default: |
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return 1; |
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$opt = $opt_and_arg[0]; |
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$arg = $opt_and_arg[1]; |
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if((substr($opt, 0, 2) == '--') |
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&& |
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array_key_exists(substr($opt, strlen('--')) . (($arg !== NULL) ? ':' : ''), $long_options)) |
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{ |
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$opt = '-' . $long_options[substr($opt, strlen('--')) . (($arg !== NULL) ? ':' : '')]; |
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} |
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switch($opt) |
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{ |
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case '-W': /* --width */ |
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$cols = intval($arg); |
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break; |
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case '-H': /* --height */ |
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$lines = intval($arg); |
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break; |
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case '-x': /* --width */ |
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$font_width = intval($arg); |
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break; |
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case '-y': /* --height */ |
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$font_height = intval($arg); |
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break; |
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case '-f': /* --format */ |
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$format = $arg; |
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break; |
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case '-d': /* --dither */ |
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$dither = $arg; |
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break; |
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case '-g': /* --gamma */ |
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$gamma = floatval($arg); |
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break; |
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case '-b': /* --brightness */ |
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$brightness = floatval($arg); |
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break; |
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case '-c': /* --contrast */ |
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$contrast = floatval($arg); |
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break; |
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case '-h': /* --help */ |
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usage($argc, $argv); |
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return 0; |
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case '-v': /* --version */ |
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version(); |
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return 0; |
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default: |
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return 1; |
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} |
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} |
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} |
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catch (MygetoptException $e) |
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{ |
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$stderr .= $argv[0] . ": " . $e->getMessage() . "\n"; |
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usage($argc, $argv); |
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return 2; |
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} |
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if($argc > 1) |
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{ |
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$stderr .= sprintf("%s: too many arguments\n", $argv[0]); |
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usage($argc, $argv); |
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return 1; |
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} |
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$file = isset($_FILES['file']) ? $_FILES['file']['tmp_name'] : NULL; |
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$filename = isset($_FILES['file']) ? $_FILES['file']['name'] : NULL; |
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if($argc != 2) |
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if(! $file) |
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{ |
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fprintf(STDERR, "%s: wrong argument count\n", $argv[0]); |
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$stderr .= sprintf("%s: no image was provided\n", $argv[0]); |
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usage($argc, $argv); |
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return 1; |
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} |
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@@ -323,15 +367,15 @@ function main() |
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$cv = caca_create_canvas(0, 0); |
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if(!$cv) |
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{ |
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fprintf(STDERR, "%s: unable to initialise libcaca\n", $argv[0]); |
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$stderr .= sprintf("%s: unable to initialise libcaca\n", $argv[0]); |
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return 1; |
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} |
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$i_str = file_get_contents($argv[$argc-1]); |
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$i_str = $file ? file_get_contents($file) : NULL; |
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$i = $i_str ? imagecreatefromstring($i_str) : NULL; |
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if(!$i) |
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{ |
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fprintf(STDERR, "%s: unable to load %s\n", $argv[0], $argv[$argc-1]); |
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$stderr .= sprintf("%s: unable to load %s\n", $argv[0], $filename); |
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return 1; |
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} |
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@@ -357,7 +401,7 @@ function main() |
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$i_dither = caca_create_dither($i); |
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if(! caca_set_dither_algorithm($i_dither, $dither?$dither:"fstein")) |
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{ |
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fprintf(STDERR, "%s: Can't dither image with algorithm '%s'\n", $argv[0], $dither?$dither:"fstein"); |
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$stderr .= sprintf("%s: Can't dither image with algorithm '%s'\n", $argv[0], $dither?$dither:"fstein"); |
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return -1; |
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} |
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@@ -367,17 +411,98 @@ function main() |
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caca_dither_bitmap($cv, 0, 0, $cols, $lines, $i_dither, $i); |
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$export = caca_export_string($cv, $format?$format:"ansi"); |
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$format = $format ? $format : 'html'; |
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$export = caca_export_string($cv, $format); |
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if(!$export) |
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{ |
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fprintf(STDERR, "%s: Can't export to format '%s'\n", $argv[0], $format); |
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$stderr .= sprintf("%s: Can't export to format '%s'\n", $argv[0], $format); |
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return -1; |
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} |
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else |
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{ |
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$content_type_map = array( |
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'ansi' => 'text/plain; charset=CP437', |
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'utf8' => 'text/plain; charset=UTF-8', |
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'utf8cr' => 'text/plain; charset=UTF-8', |
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'html' => 'text/html; charset=UTF-8', |
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'html3' => 'text/html; charset=UTF-8', |
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'bbfr' => 'text/plain; charset=UTF-8', |
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'irc' => 'text/plain; charset=UTF-8', |
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'ps' => 'application/postscript', |
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'svg' => 'image/svg+xml', |
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'tga' => 'image/x-targa' |
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); |
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$download_extension_map = array( |
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'caca' => 'caca', |
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'ansi' => 'txt', |
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'utf8' => 'txt', |
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'utf8cr' => 'txt', |
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'irc' => 'txt', |
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'tga' => 'tga' |
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); |
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$inline_extension_map = array( |
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'bbfr' => 'txt', |
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'ps' => 'ps', |
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'svg' => 'svg' |
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); |
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if (! array_key_exists($format, $content_type_map)) |
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$content_type = 'application/octet-stream'; |
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else |
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$content_type = $content_type_map[$format]; |
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header('Content-Type: ' . $content_type); |
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if (array_key_exists($format, $download_extension_map)) |
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header('Content-Disposition: attachment; filename=export.' . $download_extension_map[$format]); |
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else if (array_key_exists($format, $inline_extension_map)) |
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header('Content-Disposition: inline; filename=export.' . $inline_extension_map[$format]); |
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echo $export; |
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} |
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return 0; |
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} |
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exit(main()); |
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if(main() || strlen($stdout) || strlen($stderr)) |
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{ |
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header('Content-Type: text/html; charset=UTF-8'); |
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?> |
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" |
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
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<head> |
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<title>image to text converter</title> |
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> |
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</head> |
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<body> |
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<form id="img2txtform" name="img2txtform" action="#" enctype="multipart/form-data" method="post"> |
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<label for="file">Image:</label> |
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<input id="file" name="file" type="file" /> |
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<br /> |
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<label for="args">Options:</label> |
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<input id="args" name="args" type="text" value="<?= htmlspecialchars($args) ?>" size="80" /> |
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<br /> |
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<input type="submit" /> |
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</form> |
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<?php |
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; |
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if(strlen($stderr)) |
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{ |
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?><pre xml:space="preserve"><em><?= htmlspecialchars($stderr) ?></em></pre><?php |
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; |
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} |
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if(strlen($stdout)) |
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{ |
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?><pre xml:space="preserve"><?= htmlspecialchars($stdout) ?></pre><?php |
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; |
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} |
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?> |
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</body> |
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</html> |
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<?php |
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; |
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} |
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?> |