/**
* Thumbnail generation
*/
function generate_thumbnail(&$file, &$width, &$height, $max_width, $max_height, $cache_tag)
{
global $config;
$thumb_cache_tag = $cache_tag . '_' . $max_width . 'x' . $max_height;
// the names of the existing or to-be created thumbnail- still missing dimensions
$thumb_name = './cache/' . CACHE_THUMBS . '/' . ($config['hierarchical'] ? substr($cache_tag, 0, 1) . '/' : '') . $cache_tag;
// did we already create this thumbnail?
if (THUMB_CACHE_TARGET && html_image_get_cache($thumb_cache_tag, $width, $height)) {
// get updated filename
$file = $thumb_name . '_' . $width . 'x' . $height . '.jpg';
return;
}
// thumbnail not created yet
$scale = min($max_width / $width, $max_height / $height);
$width = round($width * $scale);
$height = round($height * $scale);
// really need to scale?
$thumb_must_scale = $config['thumbnail_level'] == TUMB_SCALE || $config['thumbnail_level'] == TUMB_REDUCE_ONLY && $scale < 1 || $config['thumbnail_level'] > 1 && $config['thumbnail_level'] < @filesize($file);
#dump("scaling required: ".(int)$thumb_must_scale." filesize: ".@filesize($file));
// perform actual scaling
if ($thumb_must_scale) {
$phpThumb = new phpThumb();
// use of truepath was added for php 5.4 apparently- otherwise thumbnail creation would inadvertantly fail
$phpThumb->sourceFilename = truepath($file);
$phpThumb->w = $max_width;
$phpThumb->h = $max_height;
if ($config['thumbnail_quality']) {
$phpThumb->q = $config['thumbnail_quality'];
}
// set cache filename
$thumb_name .= '_' . $width . 'x' . $height . '.jpg';
#dump("thumbname:$thumb_name");
// check to see if file already exists in cache, and output it with no processing if it does
if (is_writable(dirname($thumb_name)) || is_writable($thumb_name)) {
if (@filesize($thumb_name) || $phpThumb->GenerateThumbnail() && $phpThumb->RenderOutput() && file_put_contents($thumb_name, $phpThumb->outputImageData)) {
$file = $thumb_name;
if (THUMB_CACHE_TARGET) {
html_image_put_cache($thumb_cache_tag, $width . 'x' . $height);
}
}
/*
# emergency debugging
else
{
dlog("Fail: $thumb_name");
dlog("fs: ".@filesize($thumb_name));
dlog($phpThumb->GenerateThumbnail());
dlog($phpThumb->RenderOutput());
dlog($phpThumb->debugmessages);
}
*/
}
// free memory
$phpThumb = null;
}
}
// or $phpThumb->setSourceImageResource($gd_image_resource);
// set parameters (see "URL Parameters" in phpthumb.readme.txt)
$phpThumb->setParameter('w', $thumbnail_width);
//$phpThumb->setParameter('h', 100);
//$phpThumb->setParameter('fltr', 'gam|1.2');
// set options (see phpThumb.config.php)
// here you must preface each option with "config_"
$phpThumb->setParameter('config_output_format', 'jpeg');
$phpThumb->setParameter('config_imagemagick_path', '/usr/local/bin/convert');
//$phpThumb->setParameter('config_allow_src_above_docroot', true); // needed if you're working outside DOCUMENT_ROOT, in a temp dir for example
// generate & output thumbnail
$output_filename = './thumbnails/' . basename($_FILES['userfile']['name']) . '_' . $thumbnail_width . '.' . $phpThumb->config_output_format;
if ($phpThumb->GenerateThumbnail()) {
// this line is VERY important, do not remove it!
if ($output_filename) {
if ($capture_raw_data && $phpThumb->RenderOutput()) {
// RenderOutput renders the thumbnail data to $phpThumb->outputImageData, not to a file or the browser
mysql_query("INSERT INTO `table` (`thumbnail`) VALUES ('" . mysql_escape_string($phpThumb->outputImageData) . "') WHERE (`id` = '" . $id . "'");
} elseif ($phpThumb->RenderToFile($output_filename)) {
// do something on success
echo 'Successfully rendered:<br><img src="' . $output_filename . '">';
} else {
// do something with debug/error messages
echo 'Failed (size=' . $thumbnail_width . '):<pre>' . implode("\n\n", $phpThumb->debugmessages) . '</pre>';
}
} else {
$phpThumb->OutputThumbnail();
}
} else {
// do something with debug/error messages
echo 'Failed (size=' . $thumbnail_width . ').<br>';
function generateThumb($imgDir, $picName, $extension, $thumbtext)
{
require_once '../thumb/phpthumb.class.php';
require '../variables.php';
$thumbNames = array();
$imgUrl = $imgDir . $picName . "." . $extension;
$thumbDir = "thumbnails/";
// echo "<p>$imgUrl</p>";
// create 3 sizes of thumbnail
$thumbnail_widths = getThumbnailWidths();
foreach ($thumbnail_widths as $thumbnail_width) {
// Note: If you want to loop through and create multiple
// thumbnails from different image sources, you should
// create and dispose an instance of phpThumb() each time
// through the loop and not reuse the object.
$phpThumb = new phpThumb();
// set data
$phpThumb->setSourceFilename($imgUrl);
// or $phpThumb->setSourceData($binary_image_data);
// or $phpThumb->setSourceImageResource($gd_image_resource);
// $gd_img = imagecreatefrom($imgPath.$picturename);
// $phpThumb->setSourceImageResource($gd_img);
// set parameters (see "URL Parameters" in phpthumb.readme.txt)
$phpThumb->setParameter('w', $thumbnail_width);
//$phpThumb->setParameter('h', 100);
$fParam = 'wmt|Click to open (^Xx^Y)|1|B|FFFFFF||100|0||000000|100|x';
if (!empty($thumbtext)) {
$fParamTop = 'wmt| ' . $thumbtext . ' |2|T|000000||100|0||CCCCCC|100|x';
$phpThumb->setParameter('fltr', $fParamTop);
}
$phpThumb->setParameter('fltr', $fParam);
$phpThumb->setParameter('fltr', 'bord|1');
// set options (see phpThumb.config.php)
// here you must preface each option with "config_"
$phpThumb->setParameter('config_output_format', 'png');
// $phpThumb->setParameter('config_imagemagick_path', '/usr/local/bin/convert');
// $phpThumb->setParameter('config_imagemagick_path', '.');
//$phpThumb->setParameter('config_allow_src_above_docroot', true); // needed if you're working outside DOCUMENT_ROOT, in a temp dir for example
// generate & output thumbnail
$output_filename = $imgDir . $thumbDir . $picName . '_' . $thumbnail_width . '.' . $phpThumb->config_output_format;
if ($phpThumb->GenerateThumbnail()) {
// this line is VERY important, do not remove it!
if ($output_filename) {
if ($capture_raw_data && $phpThumb->RenderOutput()) {
// RenderOutput renders the thumbnail data to $phpThumb->outputImageData, not to a file or the browser
// mysql_query("INSERT INTO `table` (`thumbnail`) VALUES ('".mysql_escape_string($phpThumb->outputImageData)."') WHERE (`id` = '".$id."'");
} elseif ($phpThumb->RenderToFile($output_filename)) {
$thumbNames[] = array($thumbnail_width, $output_filename);
} else {
// do something with debug/error messages
// echo 'Failed (size=' . $thumbnail_width . '):<pre>' . implode("\n\n", $phpThumb->debugmessages) . '</pre>';
}
} else {
$phpThumb->OutputThumbnail();
}
} else {
// do something with debug/error messages
//echo '<p>Thumbnail generation failed (size='.$thumbnail_width.').</p>';
//echo '<div style="background-color:#FFEEDD; font-weight: bold; padding: 10px;">'.$phpThumb->fatalerror.'</div>';
//echo '<form><textarea rows="10" cols="60" wrap="off">'.htmlentities(implode("\n* ", $phpThumb->debugmessages)).'</textarea></form><hr>';
}
// remember to unset the object each time through the loop
unset($phpThumb);
}
return $thumbNames;
}
