function just_for_fun()
{
$moo = <<<EOT
(__)
(oo)
/------\\/
/ | ||
* /\\---/\\
~~ ~~
EOT;
$cv = caca_create_canvas(0, 0);
caca_set_color_ansi($cv, CACA_LIGHTBLUE, CACA_DEFAULT);
caca_import_string($cv, $moo, "text");
for ($j = 0; $j < caca_get_canvas_height($cv); $j++) {
for ($i = 0; $i < caca_get_canvas_width($cv); $i += 2) {
caca_set_color_ansi($cv, caca_rand(1, 10) > 5 ? CACA_LIGHTBLUE : CACA_WHITE, CACA_DEFAULT);
$a = caca_get_attr($cv, -1, -1);
caca_put_attr($cv, $i, $j, $a);
caca_put_attr($cv, $i + 1, $j, $a);
}
}
caca_set_canvas_size($cv, 18, 6);
caca_set_color_ansi($cv, CACA_LIGHTGREEN, CACA_DEFAULT);
caca_put_str($cv, 14, 0, "Moo!");
caca_set_color_ansi($cv, CACA_LIGHTRED, CACA_DEFAULT);
caca_put_char($cv, 14, 1, hexdec("2765"));
//U+2765
caca_put_char($cv, 16, 1, hexdec("2764"));
//U+2764
echo caca_export_string($cv, "html3");
}
function show_figlet($str, $font)
{
$cv = caca_create_canvas(0, 0);
if (!caca_canvas_set_figfont($cv, $font)) {
return false;
}
$chars = unistr_to_ords($str);
$color = 0;
foreach ($chars as $c) {
caca_set_color_ansi($cv, 1 + ($color += 1) % 13, CACA_WHITE);
caca_put_figchar($cv, $c);
}
echo caca_export_string($cv, "html3");
}
"<?php
echo $format == $import_format ? ' selected="selected"' : '';
?>
><?php
echo htmlspecialchars($name . " (" . $import_format . ")");
?>
</option><?php
}
?>
</select>
</form>
<?php
}
if ($file) {
$cv = caca_create_canvas(0, 0);
if (!$cv) {
die("Can't create canvas\n");
}
if (caca_import_file($cv, $file, $format == NULL ? "" : $format) < 0) {
die("could not import `" . htmlspecialchars($filename) . "'.\n");
}
echo caca_export_string($cv, "html3");
} else {
?>
See the <a href="export.php">libcaca export test program</a> for an <a
href="export.php?format=caca">example file</a>.<?php
}
?>
</body>
</html>
</head>
<body>
<?php
/*
* dithering.php sample program for libcaca php binding
* Copyright (c) 2008 Nicolas Vion <*****@*****.**>
*
* This program is free software. It comes without any warranty, to
* the extent permitted by applicable law. You can redistribute it
* and/or modify it under the terms of the Do What the F**k You Want
* to Public License, Version 2, as published by Sam Hocevar. See
* http://www.wtfpl.net/ for more details.
*/
$src = "logo-caca.png";
$img = imagecreatefrompng(dirname(__FILE__) . "/" . $src);
if (!$img) {
die("Can not open image.\n");
}
$dither = caca_create_dither($img);
if (!$dither) {
die("Can not create dither. Maybe you compiled caca-php without gd support.\n");
}
$canvas = caca_create_canvas(100, 40);
caca_dither_bitmap($canvas, 0, 0, caca_get_canvas_width($canvas), caca_get_canvas_height($canvas), $dither, $img);
echo caca_export_string($canvas, "html3");
echo "<img src=\"./{$src}\" alt=\"\" />";
?>
</body>
</html>
function main()
{
global $argc, $argv;
$cols = 0;
$lines = 0;
$font_width = 6;
$font_height = 10;
$format = NULL;
$dither = NULL;
$gamma = $brightness = $contrast = -1.0;
$long_options = array("width:" => 'W', "height:" => 'H', "font-width:" => 'x', "font-height:" => 'y', "format:" => 'f', "dither:" => 'd', "gamma:" => 'g', "brightness:" => 'b', "contrast:" => 'c', "help" => 'h', "version" => 'v');
try {
while ($opt_and_arg = mygetopt("W:H:f:d:g:b:c:hvx:y:", array_keys($long_options))) {
$opt = $opt_and_arg[0];
$arg = $opt_and_arg[1];
if (substr($opt, 0, 2) == '--' && array_key_exists(substr($opt, strlen('--')) . ($arg !== NULL ? ':' : ''), $long_options)) {
$opt = '-' . $long_options[substr($opt, strlen('--')) . ($arg !== NULL ? ':' : '')];
}
switch ($opt) {
case '-W':
/* --width */
$cols = intval($arg);
break;
case '-H':
/* --height */
$lines = intval($arg);
break;
case '-x':
/* --width */
$font_width = intval($arg);
break;
case '-y':
/* --height */
$font_height = intval($arg);
break;
case '-f':
/* --format */
$format = $arg;
break;
case '-d':
/* --dither */
$dither = $arg;
break;
case '-g':
/* --gamma */
$gamma = floatval($arg);
break;
case '-b':
/* --brightness */
$brightness = floatval($arg);
break;
case '-c':
/* --contrast */
$contrast = floatval($arg);
break;
case '-h':
/* --help */
usage($argc, $argv);
return 0;
case '-v':
/* --version */
version();
return 0;
default:
return 1;
}
}
} catch (MygetoptException $e) {
fprintf(STDERR, "%s", $argv[0] . ": " . $e->getMessage() . "\n");
usage($argc, $argv);
return 2;
}
if ($argc != 2) {
fprintf(STDERR, "%s: wrong argument count\n", $argv[0]);
usage($argc, $argv);
return 1;
}
$cv = caca_create_canvas(0, 0);
if (!$cv) {
fprintf(STDERR, "%s: unable to initialise libcaca\n", $argv[0]);
return 1;
}
$i_str = file_get_contents($argv[$argc - 1]);
$i = $i_str ? imagecreatefromstring($i_str) : NULL;
if (!$i) {
fprintf(STDERR, "%s: unable to load %s\n", $argv[0], $argv[$argc - 1]);
return 1;
}
/* Assume a 6×10 font */
if (!$cols && !$lines) {
$cols = 60;
$lines = $cols * imagesy($i) * $font_width / imagesx($i) / $font_height;
} else {
if ($cols && !$lines) {
$lines = $cols * imagesy($i) * $font_width / imagesx($i) / $font_height;
} else {
if (!$cols && $lines) {
$cols = $lines * imagesx($i) * $font_height / imagesy($i) / $font_width;
}
}
}
caca_set_canvas_size($cv, $cols, $lines);
caca_set_color_ansi($cv, CACA_DEFAULT, CACA_TRANSPARENT);
caca_clear_canvas($cv);
$i_dither = caca_create_dither($i);
if (!caca_set_dither_algorithm($i_dither, $dither ? $dither : "fstein")) {
fprintf(STDERR, "%s: Can't dither image with algorithm '%s'\n", $argv[0], $dither ? $dither : "fstein");
return -1;
}
if ($brightness != -1) {
caca_set_dither_brightness($i_dither, $brightness);
}
if ($contrast != -1) {
caca_set_dither_contrast($i_dither, $contrast);
}
if ($gamma != -1) {
caca_set_dither_gamma($i_dither, $gamma);
}
caca_dither_bitmap($cv, 0, 0, $cols, $lines, $i_dither, $i);
$export = caca_export_string($cv, $format ? $format : "ansi");
if (!$export) {
fprintf(STDERR, "%s: Can't export to format '%s'\n", $argv[0], $format ? $format : "ansi");
return -1;
} else {
echo $export;
}
return 0;
}
function exportString($codec)
{
return caca_export_string($this->cv, $codec);
}
$render_php = isset($_SERVER['SCRIPT_NAME']) ? $_SERVER['SCRIPT_NAME'] : 'render.php';
header("Content-type: text/html; charset=UTF-8");
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Я люблю Либкаку</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body text="silver" bgcolor="black">
<h1>Text mode:</h1>
<?php
echo caca_export_string(pig(), "html3");
?>
<h1>Generated image:</h1>
<a href="<?php
echo htmlspecialchars($render_php);
?>
?png=1"><img alt="[PNG]"
src="<?php
echo htmlspecialchars($render_php);
?>
?png=1" border="0" /></a>
</body>
</html>
<?php
function main()
{
global $file, $filename;
global $argc, $argv;
global $stderr;
$cols = 0;
$lines = 0;
$font_width = 6;
$font_height = 10;
$format = NULL;
$dither = NULL;
$gamma = $brightness = $contrast = -1.0;
$long_options = array("width:" => 'W', "height:" => 'H', "font-width:" => 'x', "font-height:" => 'y', "format:" => 'f', "dither:" => 'd', "gamma:" => 'g', "brightness:" => 'b', "contrast:" => 'c', "help" => 'h', "version" => 'v');
try {
while ($opt_and_arg = mygetopt("W:H:f:d:g:b:c:hvx:y:", array_keys($long_options))) {
$opt = $opt_and_arg[0];
$arg = $opt_and_arg[1];
if (substr($opt, 0, 2) == '--' && array_key_exists(substr($opt, strlen('--')) . ($arg !== NULL ? ':' : ''), $long_options)) {
$opt = '-' . $long_options[substr($opt, strlen('--')) . ($arg !== NULL ? ':' : '')];
}
switch ($opt) {
case '-W':
/* --width */
$cols = intval($arg);
break;
case '-H':
/* --height */
$lines = intval($arg);
break;
case '-x':
/* --width */
$font_width = intval($arg);
break;
case '-y':
/* --height */
$font_height = intval($arg);
break;
case '-f':
/* --format */
$format = $arg;
break;
case '-d':
/* --dither */
$dither = $arg;
break;
case '-g':
/* --gamma */
$gamma = floatval($arg);
break;
case '-b':
/* --brightness */
$brightness = floatval($arg);
break;
case '-c':
/* --contrast */
$contrast = floatval($arg);
break;
case '-h':
/* --help */
usage($argc, $argv);
return 0;
case '-v':
/* --version */
version();
return 0;
default:
return 1;
}
}
} catch (MygetoptException $e) {
$stderr .= $argv[0] . ": " . $e->getMessage() . "\n";
usage($argc, $argv);
return 2;
}
if (!$file && $argc == 2 && $argv[1] == 'logo-caca.png') {
$file = 'logo-caca.png';
$argc = 1;
} else {
if ($filename && $file && $argc == 2 && strtolower(basename($argv[1])) == strtolower(basename($filename))) {
$argc = 1;
}
}
if ($argc == 2) {
$stderr .= sprintf("%s: image not found\n", $argv[1]);
return 1;
}
if ($argc > 2) {
$stderr .= sprintf("%s: too many arguments\n", $argv[0]);
usage($argc, $argv);
return 1;
}
if (!$file) {
$stderr .= sprintf("%s: no image was provided\n", $argv[0]);
usage($argc, $argv);
return 1;
}
$cv = caca_create_canvas(0, 0);
if (!$cv) {
$stderr .= sprintf("%s: unable to initialise libcaca\n", $argv[0]);
return 1;
}
$i_str = $file ? file_get_contents($file) : NULL;
$i = $i_str ? imagecreatefromstring($i_str) : NULL;
if (!$i) {
$stderr .= sprintf("%s: unable to load %s\n", $argv[0], $filename);
return 1;
}
/* Assume a 6×10 font */
if (!$cols && !$lines) {
$cols = 60;
$lines = $cols * imagesy($i) * $font_width / imagesx($i) / $font_height;
} else {
if ($cols && !$lines) {
$lines = $cols * imagesy($i) * $font_width / imagesx($i) / $font_height;
} else {
if (!$cols && $lines) {
$cols = $lines * imagesx($i) * $font_height / imagesy($i) / $font_width;
}
}
}
caca_set_canvas_size($cv, $cols, $lines);
caca_set_color_ansi($cv, CACA_DEFAULT, CACA_TRANSPARENT);
caca_clear_canvas($cv);
$i_dither = caca_create_dither($i);
if (!caca_set_dither_algorithm($i_dither, $dither ? $dither : "fstein")) {
$stderr .= sprintf("%s: Can't dither image with algorithm '%s'\n", $argv[0], $dither ? $dither : "fstein");
return -1;
}
if ($brightness != -1) {
caca_set_dither_brightness($i_dither, $brightness);
}
if ($contrast != -1) {
caca_set_dither_contrast($i_dither, $contrast);
}
if ($gamma != -1) {
caca_set_dither_gamma($i_dither, $gamma);
}
caca_dither_bitmap($cv, 0, 0, $cols, $lines, $i_dither, $i);
$format = $format ? $format : 'html';
$export = caca_export_string($cv, $format);
if (!$export) {
$stderr .= sprintf("%s: Can't export to format '%s'\n", $argv[0], $format);
return -1;
} else {
$content_type_map = array('ansi' => 'text/plain; charset=CP437', 'utf8' => 'text/plain; charset=UTF-8', 'utf8cr' => 'text/plain; charset=UTF-8', 'html' => 'text/html; charset=UTF-8', 'html3' => 'text/html; charset=UTF-8', 'bbfr' => 'text/plain; charset=UTF-8', 'irc' => 'text/plain; charset=UTF-8', 'ps' => 'application/postscript', 'svg' => 'image/svg+xml', 'tga' => 'image/x-targa');
$download_extension_map = array('caca' => 'caca', 'ansi' => 'txt', 'utf8' => 'txt', 'utf8cr' => 'txt', 'irc' => 'txt', 'tga' => 'tga');
$inline_extension_map = array('bbfr' => 'txt', 'ps' => 'ps', 'svg' => 'svg');
if (!array_key_exists($format, $content_type_map)) {
$content_type = 'application/octet-stream';
} else {
$content_type = $content_type_map[$format];
}
header('Content-Type: ' . $content_type);
if (array_key_exists($format, $download_extension_map)) {
header('Content-Disposition: attachment; filename=export.' . $download_extension_map[$format]);
} else {
if (array_key_exists($format, $inline_extension_map)) {
header('Content-Disposition: inline; filename=export.' . $inline_extension_map[$format]);
}
}
echo $export;
}
return 0;
}
caca_put_str($cv, WIDTH / 2 - 9, HEIGHT / 2 + 3, "Blink");
caca_set_attr($cv, CACA_ITALICS);
caca_put_str($cv, WIDTH / 2 - 1, HEIGHT / 2 + 3, "Italics");
caca_set_attr($cv, CACA_UNDERLINE);
caca_put_str($cv, WIDTH / 2 + 8, HEIGHT / 2 + 3, "Underline");
caca_set_attr($cv, 0);
caca_set_color_ansi($cv, CACA_WHITE, CACA_LIGHTBLUE);
caca_put_str($cv, WIDTH / 2 - 7, HEIGHT / 2, " LIBCACA ");
for ($x = 0; $x < 16; $x++) {
caca_set_color_argb($cv, 0xff00 | $x, 0xf00f | $x << 4);
caca_put_char($cv, WIDTH / 2 - 7 + $x, HEIGHT / 2 + 6, ord('#'));
}
}
$content_type_map = array('ansi' => 'text/plain; charset=CP437', 'utf8' => 'text/plain; charset=UTF-8', 'utf8cr' => 'text/plain; charset=UTF-8', 'html' => 'text/html; charset=UTF-8', 'html3' => 'text/html; charset=UTF-8', 'bbfr' => 'text/plain; charset=UTF-8', 'irc' => 'text/plain; charset=UTF-8', 'ps' => 'application/postscript', 'svg' => 'image/svg+xml', 'tga' => 'image/x-targa');
$download_extension_map = array('caca' => 'caca', 'ansi' => 'txt', 'utf8' => 'txt', 'utf8cr' => 'txt', 'irc' => 'txt', 'tga' => 'tga');
$inline_extension_map = array('bbfr' => 'txt', 'ps' => 'ps', 'svg' => 'svg');
if (!array_key_exists($format, $content_type_map)) {
$content_type = 'application/octet-stream';
} else {
$content_type = $content_type_map[$format];
}
header('Content-Type: ' . $content_type);
if (array_key_exists($format, $download_extension_map)) {
header('Content-Disposition: attachment; filename=export.' . $download_extension_map[$format]);
} else {
if (array_key_exists($format, $inline_extension_map)) {
header('Content-Disposition: inline; filename=export.' . $inline_extension_map[$format]);
}
}
echo caca_export_string($cv, $format);
* http://www.wtfpl.net/ for more details.
*/
function unistr_to_ords($str, $encoding = 'UTF-8')
{
$str = mb_convert_encoding($str, "UCS-4BE", $encoding);
$result = array();
for ($i = 0; $i < mb_strlen($str, "UCS-4BE"); $i++) {
$c = mb_substr($str, $i, 1, "UCS-4BE");
$val = unpack("N", $c);
$result[] = $val[1];
}
return $result;
}
if (php_sapi_name() != "cli") {
die("You have to run this program with php-cli!\n");
}
if ($argc < 3) {
die("Too few arguments.\nUsage: cmd <path of font> <utf8 string>\n");
}
$cv = caca_create_canvas(0, 0);
if (!caca_canvas_set_figfont($cv, $argv[1])) {
die("Could not open font\n");
}
$chars = unistr_to_ords($argv[2]);
$color = 0;
foreach ($chars as $c) {
caca_set_color_ansi($cv, 1 + ($color += 4) % 15, CACA_TRANSPARENT);
caca_put_figchar($cv, $c);
}
echo caca_export_string($cv, "utf8");
die("You have to run this program with php-cli!\n");
}
$pig_str = <<<EOT
_._ _..._ .-', _.._(`))
'-. ` ' /-._.-' ',/
) \\ '.
/ _ _ | \\
| a a / PHP |
\\ .-. ;
'-('' ).-' ,' ;
'-; | .'
\\ \\ /
| 7 .__ _.-\\ \\
| | | ``/ /` /
jgs /,_| | /,_/ /
/,_/ '`-'
EOT;
$canvas = caca_create_canvas(0, 0);
caca_set_color_ansi($canvas, CACA_RED, CACA_WHITE);
caca_import_string($canvas, $pig_str, "text");
caca_set_color_ansi($canvas, CACA_BLUE, CACA_LIGHTGRAY);
caca_put_str($canvas, 0, 0, "Я люблю Либкаку");
echo caca_export_string($canvas, "utf8");
$font = caca_load_builtin_font("Monospace Bold 12");
$width = caca_get_canvas_width($canvas) * caca_get_font_width($font);
$height = caca_get_canvas_height($canvas) * caca_get_font_height($font);
$img = imagecreatetruecolor($width, $height);
caca_render_canvas($canvas, $font, $img);
imagepng($img, "out.png");
echo "Please, open new created png file: out.png\n";
