/**
* liberty_magickwand_convert_colorspace
*
* @param array $pFileHash
* @param string $pColorSpace - target color space, only 'grayscale' is currently supported
* @access public
* @return TRUE on success, FALSE on failure - mErrors will contain reason for failure
*/
function liberty_magickwand_convert_colorspace_image(&$pFileHash, $pColorSpace)
{
$ret = FALSE;
if (!empty($pFileHash['source_file']) && is_file($pFileHash['source_file'])) {
$magickWand = NewMagickWand();
if ($error = liberty_magickwand_check_error(MagickReadImage($magickWand, $pFileHash['source_file']), $magickWand)) {
bit_error_log("MagickReadImage Failed:{$error} ( {$pFileHash['source_file']} )");
} else {
MagickRemoveImageProfile($magickWand, "ICC");
switch (strtolower($pColorSpace)) {
case 'grayscale':
if (MagickGetImageColorspace($magickWand) == MW_GRAYColorspace) {
$ret = TRUE;
} else {
MagickSetImageColorspace($magickWand, MW_GRAYColorspace);
if (empty($pFileHash['dest_file'])) {
$pFileHash['dest_file'] = STORAGE_PKG_PATH . $pFileHash['dest_branch'] . $pFileHash['name'];
}
if ($error = liberty_magickwand_check_error(MagickWriteImage($magickWand, $pFileHash['dest_file']), $magickWand)) {
bit_error_log("MagickWriteImage Failed:{$error} ( {$pFileHash['source_file']} )");
} else {
$ret = TRUE;
}
}
break;
}
}
DestroyMagickWand($magickWand);
}
return $ret;
}
/**
* liberty_generate_thumbnails
*
* @param array $pFileHash
* @access public
* @return TRUE on success, FALSE on failure - mErrors will contain reason for failure
*/
function liberty_generate_thumbnails($pFileHash)
{
global $gBitSystem, $gThumbSizes;
$resizeFunc = liberty_get_function('resize');
$ret = FALSE;
// allow custom selection of thumbnail sizes
if (empty($pFileHash['thumbnail_sizes'])) {
if (!empty($gThumbSizes) && is_array($gThumbSizes)) {
$pFileHash['thumbnail_sizes'] = array_keys($gThumbSizes);
} else {
$pFileHash['thumbnail_sizes'] = array('large', 'medium', 'small', 'avatar', 'icon');
}
}
if (!preg_match('#image/(gif|jpe?g|png)#i', $pFileHash['type']) && $gBitSystem->isFeatureActive('liberty_jpeg_originals') || in_array('original', $pFileHash['thumbnail_sizes'])) {
// jpeg version of original
if (preg_match('/pdf/i', $pFileHash['type'])) {
// has a customer pdf rasterization function been defined?
if (function_exists('liberty_rasterize_pdf') && ($rasteredFile = liberty_rasterize_pdf($pFileHash['source_file']))) {
$pFileHash['source_file'] = $rasteredFile;
} else {
$magickWand = NewMagickWand();
if (!($pFileHash['error'] = liberty_magickwand_check_error(MagickReadImage($magickWand, $pFileHash['source_file']), $magickWand))) {
MagickSetFormat($magickWand, 'JPG');
if (MagickGetImageColorspace($magickWand) == MW_CMYKColorspace) {
MagickProfileImage($magickWand, "ICC", UTIL_PKG_PATH . 'icc/srgb.icm');
MagickSetImageColorspace($magickWand, MW_sRGBColorspace);
}
$imgWidth = MagickGetImageWidth($magickWand);
$imgHeight = MagickGetImageHeight($magickWand);
MagickSetImageUnits($magickWand, MW_PixelsPerInchResolution);
MagickSetResolution($magickWand, 300, 300);
$rasteredFile = dirname($pFileHash['source_file']) . '/original.jpg';
if (!($pFileHash['error'] = liberty_magickwand_check_error(MagickWriteImage($magickWand, $rasteredFile), $magickWand))) {
$pFileHash['source_file'] = $rasteredFile;
}
}
}
} else {
$pFileHash['dest_base_name'] = 'original';
$pFileHash['name'] = 'original.jpg';
$pFileHash['max_width'] = MAX_THUMBNAIL_DIMENSION;
$pFileHash['max_height'] = MAX_THUMBNAIL_DIMENSION;
if ($convertedFile = $resizeFunc($pFileHash)) {
$pFileHash['source_file'] = $convertedFile;
$ret = TRUE;
}
}
$pFileHash['type'] = $gBitSystem->verifyMimeType($pFileHash['source_file']);
}
// override $mimeExt if we have a custom setting for it
if ($gBitSystem->isFeatureActive('liberty_thumbnail_format')) {
$mimeExt = $gBitSystem->getConfig('liberty_thumbnail_format');
} else {
list($type, $mimeExt) = preg_split('#/#', strtolower($pFileHash['type']));
}
if (preg_match("!(png|gif)!", $mimeExt)) {
$destExt = '.' . $mimeExt;
} else {
$destExt = '.jpg';
}
$initialDestPath = $pFileHash['dest_branch'];
foreach ($pFileHash['thumbnail_sizes'] as $thumbSize) {
if (isset($gThumbSizes[$thumbSize])) {
$pFileHash['dest_base_name'] = $thumbSize;
$pFileHash['name'] = $thumbSize . $destExt;
if (!empty($gThumbSizes[$thumbSize]['width'])) {
$pFileHash['max_width'] = $gThumbSizes[$thumbSize]['width'];
} else {
// Have to unset since we reuse $pFileHash
unset($pFileHash['max_width']);
}
// reset dest_branch for created thumbs
if (!empty($pFileHash['thumb_path'])) {
$pFileHash['dest_file'] = $pFileHash['thumb_path'] . $pFileHash['name'];
} else {
// create a subdirectory for the thumbs
$pFileHash['dest_branch'] = $initialDestPath . 'thumbs/';
clearstatcache();
if (!is_dir(STORAGE_PKG_PATH . $pFileHash['dest_branch'])) {
mkdir(STORAGE_PKG_PATH . $pFileHash['dest_branch'], 0775, TRUE);
clearstatcache();
}
}
if (!empty($gThumbSizes[$thumbSize]['height'])) {
$pFileHash['max_height'] = $gThumbSizes[$thumbSize]['height'];
} else {
// Have to unset since we reuse $pFileHash
unset($pFileHash['max_height']);
}
if ($pFileHash['icon_thumb_path'] = $resizeFunc($pFileHash)) {
$ret = TRUE;
// use the previous thumb as the source for the next, decreasingly smaller thumb as this GREATLY increases speed
$pFileHash['source_file'] = $pFileHash['icon_thumb_path'];
}
}
}
// to keep everything in bitweaver working smoothly, we need to remove the thumbs/ subdir again
$pFileHash['dest_branch'] = $initialDestPath;
return $ret;
}