cacalabs
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libcaca
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no more horrible hacks needed, since fixing the alpha mismatch in the C binding

tags/v0.99.beta17
Ben Wiley Sittler bsittler il y a 16 ans
Parent
d0a08f2be2
révision
d71ddf0f51
2 fichiers modifiés avec 189 ajouts et 222 suppressions
Vue séparée
Option de Diff
Voir les Statistiques Télécharger le Fichier Patch Télécharger le Fichier des Différences
  1. +1
    -3
      caca-php/examples/export.php
  2. +188
    -219
      caca-php/examples/img2txt.php

+ 1
- 3
caca-php/examples/export.php Voir le fichier

@@ -26,8 +26,6 @@ define('WIDTH', 80);
define('HEIGHT', 32);

$pixels = imagecreatetruecolor(256, 256);
imagealphablending($pixels, false);
imagesavealpha($pixels, true);

$exports = caca_get_export_list();

@@ -80,7 +78,7 @@ else
$r = $x;
$g = (255 - $y + $x) / 2;
$b = $y * (255 - $x) / 256;
imagesetpixel($pixels, $x, $y, imagecolorallocatealpha($pixels, $r, $g, $b, 127));
imagesetpixel($pixels, $x, $y, imagecolorallocate($pixels, $r, $g, $b));
}
}



+ 188
- 219
caca-php/examples/img2txt.php Voir le fichier

@@ -1,3 +1,5 @@
#!/usr/bin/php5
<?php
/*
* img2txt image to text converter
* Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
@@ -13,230 +15,197 @@
* http://sam.zoy.org/wtfpl/COPYING for more details.
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdio.h>
# include <string.h>
# include <stdlib.h>
#endif

#if !defined HAVE_GETOPT_LONG
# include "mygetopt.h"
#elif defined HAVE_GETOPT_H
# include <getopt.h>
#endif
#if defined HAVE_GETOPT_LONG
# define mygetopt getopt_long
# define myoptind optind
# define myoptarg optarg
# define myoption option
#endif

#include "caca.h"

#include "common-image.h"

#define IMG2TXTVERSION "0.1"
if (php_sapi_name() != "cli") {
die("You have to run this program with php-cli!\n");
}

static void usage(int argc, char **argv)
function usage($argc, $argv)
{
char const * const * list;

fprintf(stderr, "Usage: %s [OPTIONS]... <IMAGE>\n", argv[0]);
fprintf(stderr, "Convert IMAGE to any text based available format.\n");
fprintf(stderr, "Example : %s -w 80 -f ansi ./caca.png\n\n", argv[0]);
fprintf(stderr, "Options:\n");
fprintf(stderr, " -h, --help\t\t\tThis help\n");
fprintf(stderr, " -v, --version\t\t\tVersion of the program\n");
fprintf(stderr, " -W, --width=WIDTH\t\tWidth of resulting image\n");
fprintf(stderr, " -H, --height=HEIGHT\t\tHeight of resulting image\n");
fprintf(stderr, " -x, --font-width=WIDTH\t\tWidth of output font\n");
fprintf(stderr, " -y, --font-height=HEIGHT\t\tHeight of output font\n");
fprintf(stderr, " -b, --brightness=BRIGHTNESS\tBrightness of resulting image\n");
fprintf(stderr, " -c, --contrast=CONTRAST\tContrast of resulting image\n");
fprintf(stderr, " -g, --gamma=GAMMA\t\tGamma of resulting image\n");
fprintf(stderr, " -d, --dither=DITHER\t\tDithering algorithm to use :\n");
list = caca_get_dither_algorithm_list(NULL);
while(*list)
{
fprintf(stderr, "\t\t\t%s: %s\n", list[0], list[1]);
list += 2;
}

fprintf(stderr, " -f, --format=FORMAT\t\tFormat of the resulting image :\n");
list = caca_get_export_list();
while(*list)
{
fprintf(stderr, "\t\t\t%s: %s\n", list[0], list[1]);
list += 2;
}

#if !defined(USE_IMLIB2)
fprintf(stderr, "NOTE: This program has NOT been built with Imlib2 support. Only BMP loading is supported.\n");
#endif
fprintf(STDERR, "Usage: %s [OPTIONS]... <IMAGE>\n", $argv[0]);
fprintf(STDERR, "Convert IMAGE to any text based available format.\n");
fprintf(STDERR, "Example : %s -w 80 -f ansi ./caca.png\n\n", $argv[0]);
fprintf(STDERR, "Options:\n");
fprintf(STDERR, " -h, --help\t\t\tThis help\n");
fprintf(STDERR, " -v, --version\t\t\tVersion of the program\n");
fprintf(STDERR, " -W, --width=WIDTH\t\tWidth of resulting image\n");
fprintf(STDERR, " -H, --height=HEIGHT\t\tHeight of resulting image\n");
fprintf(STDERR, " -x, --font-width=WIDTH\t\tWidth of output font\n");
fprintf(STDERR, " -y, --font-height=HEIGHT\t\tHeight of output font\n");
fprintf(STDERR, " -b, --brightness=BRIGHTNESS\tBrightness of resulting image\n");
fprintf(STDERR, " -c, --contrast=CONTRAST\tContrast of resulting image\n");
fprintf(STDERR, " -g, --gamma=GAMMA\t\tGamma of resulting image\n");
fprintf(STDERR, " -d, --dither=DITHER\t\tDithering algorithm to use :\n");
$list = caca_get_dither_algorithm_list(caca_create_dither(imagecreate(1, 1)));
foreach($list as $type => $name)
{
fprintf(STDERR, "\t\t\t%s: %s\n", $type, $name);
}

fprintf(STDERR, " -f, --format=FORMAT\t\tFormat of the resulting image :\n");
$list = caca_get_export_list();
foreach($list as $type => $name)
{
fprintf(STDERR, "\t\t\t%s: %s\n", $type, $name);
}
}

static void version(void)
function version()
{
printf(
"img2txt Copyright 2006-2007 Sam Hocevar and Jean-Yves Lamoureux\n"
"Internet: <sam@zoy.org> <jylam@lnxscene.org> Version: %s, date: %s\n"
"\n"
"img2txt, along with its documentation, may be freely copied and distributed.\n"
"\n"
"The latest version of img2txt is available from the web site,\n"
" http://caca.zoy.org/wiki/libcaca in the libcaca package.\n"
"\n",
caca_get_version(), __DATE__);
printf(
"img2txt Copyright 2006-2007 Sam Hocevar and Jean-Yves Lamoureux\n" .
"Internet: <sam@zoy.org> <jylam@lnxscene.org> Version: %s\n" .
"\n" .
"img2txt, along with its documentation, may be freely copied and distributed.\n" .
"\n" .
"The latest version of img2txt is available from the web site,\n" .
" http://caca.zoy.org/wiki/libcaca in the libcaca package.\n" .
"\n",
caca_get_version());
}
int main(int argc, char **argv)
function main()
{
/* libcaca context */
caca_canvas_t *cv;
void *export;
size_t len;
struct image *i;
unsigned int cols = 0, lines = 0, font_width = 6, font_height = 10;
char *format = NULL;
char *dither = NULL;
float gamma = -1, brightness = -1, contrast = -1;

if(argc < 2)
{
fprintf(stderr, "%s: wrong argument count\n", argv[0]);
usage(argc, argv);
return 1;
}

for(;;)
{
int option_index = 0;
static struct myoption long_options[] =
{
{ "width", 1, NULL, 'W' },
{ "height", 1, NULL, 'H' },
{ "font-width", 1, NULL, 'x' },
{ "font-height", 1, NULL, 'y' },
{ "format", 1, NULL, 'f' },
{ "dither", 1, NULL, 'd' },
{ "gamma", 1, NULL, 'g' },
{ "brightness", 1, NULL, 'b' },
{ "contrast", 1, NULL, 'c' },
{ "help", 0, NULL, 'h' },
{ "version", 0, NULL, 'v' },
};
int c = mygetopt(argc, argv, "W:H:f:d:g:b:c:hvx:y:", long_options, &option_index);
if(c == -1)
break;

switch(c)
{
case 'W': /* --width */
cols = atoi(myoptarg);
break;
case 'H': /* --height */
lines = atoi(myoptarg);
break;
case 'x': /* --width */
font_width = atoi(myoptarg);
break;
case 'y': /* --height */
font_height = atoi(myoptarg);
break;
case 'f': /* --format */
format = myoptarg;
break;
case 'd': /* --dither */
dither = myoptarg;
break;
case 'g': /* --gamma */
gamma = atof(myoptarg);
break;
case 'b': /* --brightness */
brightness = atof(myoptarg);
break;
case 'c': /* --contrast */
contrast = atof(myoptarg);
break;
case 'h': /* --help */
usage(argc, argv);
return 0;
break;
case 'v': /* --version */
version();
return 0;
break;
default:
return 1;
break;
}
}


cv = caca_create_canvas(0, 0);
if(!cv)
{
fprintf(stderr, "%s: unable to initialise libcaca\n", argv[0]);
return 1;
}

i = load_image(argv[argc-1]);
if(!i)
{
fprintf(stderr, "%s: unable to load %s\n", argv[0], argv[argc-1]);
caca_free_canvas(cv);
return 1;
}

/* Assume a 6×10 font */
if(!cols && !lines)
{
cols = 60;
lines = cols * i->h * font_width / i->w / font_height;
}
else if(cols && !lines)
{
lines = cols * i->h * font_width / i->w / font_height;
}
else if(!cols && lines)
{
cols = lines * i->w * font_height / i->h / font_width;
}


caca_set_canvas_size(cv, cols, lines);
caca_set_color_ansi(cv, CACA_DEFAULT, CACA_TRANSPARENT);
caca_clear_canvas(cv);
if(caca_set_dither_algorithm(i->dither, dither?dither:"fstein"))
{
fprintf(stderr, "%s: Can't dither image with algorithm '%s'\n", argv[0], dither);
unload_image(i);
caca_free_canvas(cv);
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->pixels);

unload_image(i);

export = caca_export_memory(cv, format?format:"ansi", &len);
if(!export)
{
fprintf(stderr, "%s: Can't export to format '%s'\n", argv[0], format);
}
else
{
fwrite(export, len, 1, stdout);
free(export);
}

caca_free_canvas(cv);

return 0;
global $argc, $argv;
$cols = 0;
$lines = 0;
$font_width = 6;
$font_height = 10;
$format = NULL;
$dither = NULL;
$gamma = $brightness = $contrast = -1.0;

if($argc < 2)
{
fprintf(STDERR, "%s: wrong argument count\n", $argv[0]);
usage($argc, $argv);
return 1;
}

$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'
);
$options = getopt("W:H:f:d:g:b:c:hvx:y:", array_keys($long_options));
if (! $options)
{
/* PHP before 5.3 or so does not have long option support in
* most cases */
$options = getopt("W:H:f:d:g:b:c:hvx:y:");
}

foreach($options as $opt => $arg)
{
if (array_key_exists($opt + (isset($arg) ? ':' : ''), $long_options))
{
$opt = $long_options[$opt + (isset($arg) ? ':' : '')];
}
switch($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;
}
}


$cv = caca_create_canvas(0, 0);
if(!$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);
}
else
{
echo $export;
}

return 0;
}

exit(main());
?>

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