phpthumb.class.php

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<?php
//        available at http://phpthumb.sourceforge.net     ///
// See: phpthumb.readme.txt for usage instructions          //
//                                                         ///

ob_start();
if (!include_once(dirname(__FILE__).'/phpthumb.functions.php')) {
        ob_end_flush();
        die('failed to include_once("'.realpath(dirname(__FILE__).'/phpthumb.functions.php').'")');
}
ob_end_clean();

class phpthumb {

        // public:
        // START PARAMETERS (for object mode and phpThumb.php)
        // See phpthumb.readme.txt for descriptions of what each of these values are
        var $src  = null;     // SouRCe filename
        var $new  = null;     // NEW image (phpThumb.php only)
        var $w    = null;     // Width
        var $h    = null;     // Height
        var $wp   = null;     // Width  (Portrait Images Only)
        var $hp   = null;     // Height (Portrait Images Only)
        var $wl   = null;     // Width  (Landscape Images Only)
        var $hl   = null;     // Height (Landscape Images Only)
        var $ws   = null;     // Width  (Square Images Only)
        var $hs   = null;     // Height (Square Images Only)
        var $f    = null;     // output image Format
        var $q    = 75;       // jpeg output Quality
        var $sx   = null;     // Source crop top-left X position
        var $sy   = null;     // Source crop top-left Y position
        var $sw   = null;     // Source crop Width
        var $sh   = null;     // Source crop Height
        var $zc   = null;     // Zoom Crop
        var $bc   = null;     // Border Color
        var $bg   = null;     // BackGround color
        var $fltr = array();  // FiLTeRs
        var $goto = null;     // GO TO url after processing
        var $err  = null;     // default ERRor image filename
        var $xto  = null;     // extract eXif Thumbnail Only
        var $ra   = null;     // Rotate by Angle
        var $ar   = null;     // Auto Rotate
        var $aoe  = null;     // Allow Output Enlargement
        var $far  = null;     // Fixed Aspect Ratio
        var $iar  = null;     // Ignore Aspect Ratio
        var $maxb = null;     // MAXimum Bytes
        var $down = null;     // DOWNload thumbnail filename
        var $md5s = null;     // MD5 hash of Source image
        var $sfn  = 0;        // Source Frame Number
        var $dpi  = 150;      // Dots Per Inch for vector source formats
        var $sia  = null;     // Save Image As filename

        var $file = null;     // >>>deprecated, DO NOT USE, will be removed in future versions<<<

        var $phpThumbDebug = null;
        // END PARAMETERS


        // public:
        // START CONFIGURATION OPTIONS (for object mode only)
        // See phpThumb.config.php for descriptions of what each of these settings do

        // * Directory Configuration
        var $config_cache_directory                      = null;
        var $config_cache_directory_depth                = 0;
        var $config_cache_disable_warning                = true;
        var $config_cache_source_enabled                 = false;
        var $config_cache_source_directory               = null;
        var $config_temp_directory                       = null;
        var $config_document_root                        = null;

        // * Default output configuration:
        var $config_output_format                        = 'jpeg';
        var $config_output_maxwidth                      = 0;
        var $config_output_maxheight                     = 0;
        var $config_output_interlace                     = true;

        // * Error message configuration
        var $config_error_image_width                    = 400;
        var $config_error_image_height                   = 100;
        var $config_error_message_image_default          = '';
        var $config_error_bgcolor                        = 'CCCCFF';
        var $config_error_textcolor                      = 'FF0000';
        var $config_error_fontsize                       = 1;
        var $config_error_die_on_error                   = false;
        var $config_error_silent_die_on_error            = false;
        var $config_error_die_on_source_failure          = true;

        // * Anti-Hotlink Configuration:
        var $config_nohotlink_enabled                    = true;
        var $config_nohotlink_valid_domains              = array();
        var $config_nohotlink_erase_image                = true;
        var $config_nohotlink_text_message               = 'Off-server thumbnailing is not allowed';
        // * Off-server Linking Configuration:
        var $config_nooffsitelink_enabled                = false;
        var $config_nooffsitelink_valid_domains          = array();
        var $config_nooffsitelink_require_refer          = false;
        var $config_nooffsitelink_erase_image            = true;
        var $config_nooffsitelink_watermark_src          = '';
        var $config_nooffsitelink_text_message           = 'Off-server linking is not allowed';

        // * Border & Background default colors
        var $config_border_hexcolor                      = '000000';
        var $config_background_hexcolor                  = 'FFFFFF';

        // * TrueType Fonts
        var $config_ttf_directory                        = './fonts';

        var $config_max_source_pixels                    = null;
        var $config_use_exif_thumbnail_for_speed         = false;
        var $allow_local_http_src                        = false;

        var $config_imagemagick_path                     = null;
        var $config_prefer_imagemagick                   = true;
        var $config_imagemagick_use_thumbnail            = true;

        var $config_cache_maxage                         = null;
        var $config_cache_maxsize                        = null;
        var $config_cache_maxfiles                       = null;
        var $config_cache_source_filemtime_ignore_local  = false;
        var $config_cache_source_filemtime_ignore_remote = true;
        var $config_cache_default_only_suffix            = false;
        var $config_cache_force_passthru                 = true;
        var $config_cache_prefix                         = '';    // default value set in the constructor below

        // * MySQL
        var $config_mysql_query                          = null;
        var $config_mysql_hostname                       = null;
        var $config_mysql_username                       = null;
        var $config_mysql_password                       = null;
        var $config_mysql_database                       = null;

        // * Security
        var $config_high_security_enabled                = false;
        var $config_high_security_password               = null;
        var $config_disable_debug                        = true;
        var $config_allow_src_above_docroot              = false;
        var $config_allow_src_above_phpthumb             = true;

        // * HTTP fopen
        var $config_http_fopen_timeout                   = 10;
        var $config_http_follow_redirect                 = true;

        // * Compatability
        var $config_disable_pathinfo_parsing             = false;
        var $config_disable_imagecopyresampled           = false;
        var $config_disable_onlycreateable_passthru      = false;

        var $config_http_user_agent                      = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7';

        // END CONFIGURATION OPTIONS


        // public: error messages (read-only; persistant)
        var $debugmessages = array();
        var $debugtiming   = array();
        var $fatalerror    = null;


        // private: (should not be modified directly)
        var $thumbnailQuality = 75;
        var $thumbnailFormat  = null;

        var $sourceFilename   = null;
        var $rawImageData     = null;
        var $IMresizedData    = null;
        var $outputImageData  = null;

        var $useRawIMoutput   = false;

        var $gdimg_output     = null;
        var $gdimg_source     = null;

        var $getimagesizeinfo = null;

        var $source_width  = null;
        var $source_height = null;

        var $thumbnailCropX = null;
        var $thumbnailCropY = null;
        var $thumbnailCropW = null;
        var $thumbnailCropH = null;

        var $exif_thumbnail_width  = null;
        var $exif_thumbnail_height = null;
        var $exif_thumbnail_type   = null;
        var $exif_thumbnail_data   = null;
        var $exif_raw_data         = null;

        var $thumbnail_width        = null;
        var $thumbnail_height       = null;
        var $thumbnail_image_width  = null;
        var $thumbnail_image_height = null;

        var $tempFilesToDelete = array();
        var $cache_filename    = null;

        var $AlphaCapableFormats = array('png', 'ico', 'gif');
        var $is_alpha = false;

        var $iswindows  = null;
        var $issafemode = null;

        var $phpthumb_version = '1.7.11-201108081537';


        // public: constructor
        function phpThumb() {
                $this->DebugTimingMessage('phpThumb() constructor', __FILE__, __LINE__);
                $this->DebugMessage('phpThumb() v'.$this->phpthumb_version, __FILE__, __LINE__);
                $this->config_max_source_pixels = round(max(intval(ini_get('memory_limit')), intval(get_cfg_var('memory_limit'))) * 1048576 * 0.20); // 20% of memory_limit
                $this->iswindows  = (bool) (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN');
                $this->issafemode = (bool) preg_match('#(1|ON)#i', ini_get('safe_mode'));
                $this->config_document_root = (!empty($_SERVER['DOCUMENT_ROOT']) ? $_SERVER['DOCUMENT_ROOT']   : $this->config_document_root);
                $this->config_cache_prefix  = ( isset($_SERVER['SERVER_NAME'])   ? $_SERVER['SERVER_NAME'].'_' : '');

                $this->purgeTempFiles(); // purge existing temp files if re-initializing object

                $php_sapi_name = strtolower(function_exists('php_sapi_name') ? php_sapi_name() : '');
                if ($php_sapi_name == 'cli') {
                        $this->config_allow_src_above_docroot = true;
                }
        }

        function __destruct() {
                $this->purgeTempFiles();
        }

        // public:
        function purgeTempFiles() {
                foreach ($this->tempFilesToDelete as $tempFileToDelete) {
                        if (file_exists($tempFileToDelete)) {
                                $this->DebugMessage('Deleting temp file "'.$tempFileToDelete.'"', __FILE__, __LINE__);
                                @unlink($tempFileToDelete);
                        }
                }
                $this->tempFilesToDelete = array();
                return true;
        }

        // public:
        function setSourceFilename($sourceFilename) {
                //$this->resetObject();
                //$this->rawImageData   = null;
                $this->sourceFilename = $sourceFilename;
                $this->src            = $sourceFilename;
                if (is_null($this->config_output_format)) {
                        $sourceFileExtension = strtolower(substr(strrchr($sourceFilename, '.'), 1));
                        if (preg_match('#^[a-z]{3,4}$#', $sourceFileExtension)) {
                                $this->config_output_format = $sourceFileExtension;
                                $this->DebugMessage('setSourceFilename('.$sourceFilename.') set $this->config_output_format to "'.$sourceFileExtension.'"', __FILE__, __LINE__);
                        } else {
                                $this->DebugMessage('setSourceFilename('.$sourceFilename.') did NOT set $this->config_output_format to "'.$sourceFileExtension.'" because it did not seem like an appropriate image format', __FILE__, __LINE__);
                        }
                }
                $this->DebugMessage('setSourceFilename('.$sourceFilename.') set $this->sourceFilename to "'.$this->sourceFilename.'"', __FILE__, __LINE__);
                return true;
        }

        // public:
        function setSourceData($rawImageData, $sourceFilename='') {
                //$this->resetObject();
                //$this->sourceFilename = null;
                $this->rawImageData   = $rawImageData;
                $this->DebugMessage('setSourceData() setting $this->rawImageData ('.strlen($this->rawImageData).' bytes; magic="'.substr($this->rawImageData, 0, 4).'" ('.phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 4)).'))', __FILE__, __LINE__);
                if ($this->config_cache_source_enabled) {
                        $sourceFilename = ($sourceFilename ? $sourceFilename : md5($rawImageData));
                        if (!is_dir($this->config_cache_source_directory)) {
                                $this->ErrorImage('$this->config_cache_source_directory ('.$this->config_cache_source_directory.') is not a directory');
                        } elseif (!@is_writable($this->config_cache_source_directory)) {
                                $this->ErrorImage('$this->config_cache_source_directory ('.$this->config_cache_source_directory.') is not writable');
                        }
                        $this->DebugMessage('setSourceData() attempting to save source image to "'.$this->config_cache_source_directory.DIRECTORY_SEPARATOR.urlencode($sourceFilename).'"', __FILE__, __LINE__);
                        if ($fp = @fopen($this->config_cache_source_directory.DIRECTORY_SEPARATOR.urlencode($sourceFilename), 'wb')) {
                                fwrite($fp, $rawImageData);
                                fclose($fp);
                        } elseif (!$this->phpThumbDebug) {
                                $this->ErrorImage('setSourceData() failed to write to source cache ('.$this->config_cache_source_directory.DIRECTORY_SEPARATOR.urlencode($sourceFilename).')');
                        }
                }
                return true;
        }

        // public:
        function setSourceImageResource($gdimg) {
                //$this->resetObject();
                $this->gdimg_source = $gdimg;
                return true;
        }

        // public:
        function setParameter($param, $value) {
                if ($param == 'src') {
                        $this->setSourceFilename($this->ResolveFilenameToAbsolute($value));
                } elseif (@is_array($this->$param)) {
                        if (is_array($value)) {
                                foreach ($value as $arraykey => $arrayvalue) {
                                        array_push($this->$param, $arrayvalue);
                                }
                        } else {
                                array_push($this->$param, $value);
                        }
                } else {
                        $this->$param = $value;
                }
                return true;
        }

        // public:
        function getParameter($param) {
                //if (property_exists('phpThumb', $param)) {
                        return $this->$param;
                //}
                //$this->DebugMessage('setParameter() attempting to get non-existant parameter "'.$param.'"', __FILE__, __LINE__);
                //return false;
        }


        // public:
        function GenerateThumbnail() {

                $this->setOutputFormat();
                        $this->phpThumbDebug('8a');
                $this->ResolveSource();
                        $this->phpThumbDebug('8b');
                $this->SetCacheFilename();
                        $this->phpThumbDebug('8c');
                $this->ExtractEXIFgetImageSize();
                        $this->phpThumbDebug('8d');
                if ($this->useRawIMoutput) {
                        $this->DebugMessage('Skipping rest of GenerateThumbnail() because ($this->useRawIMoutput == true)', __FILE__, __LINE__);
                        return true;
                }
                        $this->phpThumbDebug('8e');
                if (!$this->SourceImageToGD()) {
                        $this->DebugMessage('SourceImageToGD() failed', __FILE__, __LINE__);
                        return false;
                }
                        $this->phpThumbDebug('8f');
                $this->Rotate();
                        $this->phpThumbDebug('8g');
                $this->CreateGDoutput();
                        $this->phpThumbDebug('8h');

                switch ($this->far) {
                        case 'L':
                        case 'TL':
                        case 'BL':
                                $destination_offset_x = 0;
                                $destination_offset_y = round(($this->thumbnail_height - $this->thumbnail_image_height) / 2);
                                break;
                        case 'R':
                        case 'TR':
                        case 'BR':
                                $destination_offset_x =  round($this->thumbnail_width  - $this->thumbnail_image_width);
                                $destination_offset_y = round(($this->thumbnail_height - $this->thumbnail_image_height) / 2);
                                break;
                        case 'T':
                        case 'TL':
                        case 'TR':
                                $destination_offset_x = round(($this->thumbnail_width  - $this->thumbnail_image_width)  / 2);
                                $destination_offset_y = 0;
                                break;
                        case 'B':
                        case 'BL':
                        case 'BR':
                                $destination_offset_x = round(($this->thumbnail_width  - $this->thumbnail_image_width)  / 2);
                                $destination_offset_y =  round($this->thumbnail_height - $this->thumbnail_image_height);
                                break;
                        case 'C':
                        default:
                                $destination_offset_x = round(($this->thumbnail_width  - $this->thumbnail_image_width)  / 2);
                                $destination_offset_y = round(($this->thumbnail_height - $this->thumbnail_image_height) / 2);
                }

//              // copy/resize image to appropriate dimensions
//              $borderThickness = 0;
//              if (!empty($this->fltr)) {
//                      foreach ($this->fltr as $key => $value) {
//                              if (preg_match('#^bord\|([0-9]+)#', $value, $matches)) {
//                                      $borderThickness = $matches[1];
//                                      break;
//                              }
//                      }
//              }
//              if ($borderThickness > 0) {
//                      //$this->DebugMessage('Skipping ImageResizeFunction() because BorderThickness="'.$borderThickness.'"', __FILE__, __LINE__);
//                      $this->thumbnail_image_height /= 2;
//              }
                $this->ImageResizeFunction(
                        $this->gdimg_output,
                        $this->gdimg_source,
                        $destination_offset_x,
                        $destination_offset_y,
                        $this->thumbnailCropX,
                        $this->thumbnailCropY,
                        $this->thumbnail_image_width,
                        $this->thumbnail_image_height,
                        $this->thumbnailCropW,
                        $this->thumbnailCropH
                );

                $this->DebugMessage('memory_get_usage() after copy-resize = '.(function_exists('memory_get_usage') ? @memory_get_usage() : 'n/a'), __FILE__, __LINE__);
                ImageDestroy($this->gdimg_source);
                $this->DebugMessage('memory_get_usage() after ImageDestroy = '.(function_exists('memory_get_usage') ? @memory_get_usage() : 'n/a'), __FILE__, __LINE__);

                        $this->phpThumbDebug('8i');
                $this->AntiOffsiteLinking();
                        $this->phpThumbDebug('8j');
                $this->ApplyFilters();
                        $this->phpThumbDebug('8k');
                $this->AlphaChannelFlatten();
                        $this->phpThumbDebug('8l');
                $this->MaxFileSize();
                        $this->phpThumbDebug('8m');

                $this->DebugMessage('GenerateThumbnail() completed successfully', __FILE__, __LINE__);
                return true;
        }


        // public:
        function RenderOutput() {
                if (!$this->useRawIMoutput && !is_resource($this->gdimg_output)) {
                        $this->DebugMessage('RenderOutput() failed because !is_resource($this->gdimg_output)', __FILE__, __LINE__);
                        return false;
                }
                if (!$this->thumbnailFormat) {
                        $this->DebugMessage('RenderOutput() failed because $this->thumbnailFormat is empty', __FILE__, __LINE__);
                        return false;
                }
                if ($this->useRawIMoutput) {
                        $this->DebugMessage('RenderOutput copying $this->IMresizedData ('.strlen($this->IMresizedData).' bytes) to $this->outputImage', __FILE__, __LINE__);
                        $this->outputImageData = $this->IMresizedData;
                        return true;
                }

                $builtin_formats = array();
                if (function_exists('ImageTypes')) {
                        $imagetypes = ImageTypes();
                        $builtin_formats['wbmp'] = (bool) ($imagetypes & IMG_WBMP);
                        $builtin_formats['jpg']  = (bool) ($imagetypes & IMG_JPG);
                        $builtin_formats['gif']  = (bool) ($imagetypes & IMG_GIF);
                        $builtin_formats['png']  = (bool) ($imagetypes & IMG_PNG);
                }
                $this->DebugMessage('RenderOutput() attempting Image'.strtoupper(@$this->thumbnailFormat).'($this->gdimg_output)', __FILE__, __LINE__);
                ob_start();
                switch ($this->thumbnailFormat) {
                        case 'wbmp':
                                if (!@$builtin_formats['wbmp']) {
                                        $this->DebugMessage('GD does not have required built-in support for WBMP output', __FILE__, __LINE__);
                                        ob_end_clean();
                                        return false;
                                }
                                ImageJPEG($this->gdimg_output, null, $this->thumbnailQuality);
                                $this->outputImageData = ob_get_contents();
                                break;

                        case 'jpeg':
                        case 'jpg':  // should be "jpeg" not "jpg" but just in case...
                                if (!@$builtin_formats['jpg']) {
                                        $this->DebugMessage('GD does not have required built-in support for JPEG output', __FILE__, __LINE__);
                                        ob_end_clean();
                                        return false;
                                }
                                ImageJPEG($this->gdimg_output, null, $this->thumbnailQuality);
                                $this->outputImageData = ob_get_contents();
                                break;

                        case 'png':
                                if (!@$builtin_formats['png']) {
                                        $this->DebugMessage('GD does not have required built-in support for PNG output', __FILE__, __LINE__);
                                        ob_end_clean();
                                        return false;
                                }
                                ImagePNG($this->gdimg_output);
                                $this->outputImageData = ob_get_contents();
                                break;

                        case 'gif':
                                if (!@$builtin_formats['gif']) {
                                        $this->DebugMessage('GD does not have required built-in support for GIF output', __FILE__, __LINE__);
                                        ob_end_clean();
                                        return false;
                                }
                                ImageGIF($this->gdimg_output);
                                $this->outputImageData = ob_get_contents();
                                break;

                        case 'bmp':
                                $ImageOutFunction = '"builtin BMP output"';
                                if (!@include_once(dirname(__FILE__).'/phpthumb.bmp.php')) {
                                        $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.bmp.php" which is required for BMP format output', __FILE__, __LINE__);
                                        ob_end_clean();
                                        return false;
                                }
                                $phpthumb_bmp = new phpthumb_bmp();
                                $this->outputImageData = $phpthumb_bmp->GD2BMPstring($this->gdimg_output);
                                unset($phpthumb_bmp);
                                break;

                        case 'ico':
                                $ImageOutFunction = '"builtin ICO output"';
                                if (!@include_once(dirname(__FILE__).'/phpthumb.ico.php')) {
                                        $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.ico.php" which is required for ICO format output', __FILE__, __LINE__);
                                        ob_end_clean();
                                        return false;
                                }
                                $phpthumb_ico = new phpthumb_ico();
                                $arrayOfOutputImages = array($this->gdimg_output);
                                $this->outputImageData = $phpthumb_ico->GD2ICOstring($arrayOfOutputImages);
                                unset($phpthumb_ico);
                                break;

                        default:
                                $this->DebugMessage('RenderOutput failed because $this->thumbnailFormat "'.$this->thumbnailFormat.'" is not valid', __FILE__, __LINE__);
                                ob_end_clean();
                                return false;
                }
                ob_end_clean();
                if (!$this->outputImageData) {
                        $this->DebugMessage('RenderOutput() for "'.$this->thumbnailFormat.'" failed', __FILE__, __LINE__);
                        ob_end_clean();
                        return false;
                }
                $this->DebugMessage('RenderOutput() completing with $this->outputImageData = '.strlen($this->outputImageData).' bytes', __FILE__, __LINE__);
                return true;
        }


        // public:
        function RenderToFile($filename) {
                if (preg_match('#^(f|ht)tps?\://#i', $filename)) {
                        $this->DebugMessage('RenderToFile() failed because $filename ('.$filename.') is a URL', __FILE__, __LINE__);
                        return false;
                }
                // render thumbnail to this file only, do not cache, do not output to browser
                //$renderfilename = $this->ResolveFilenameToAbsolute(dirname($filename)).DIRECTORY_SEPARATOR.basename($filename);
                $renderfilename = $filename;
                if (($filename{0} != '/') && ($filename{0} != '\\') && ($filename{1} != ':')) {
                        $renderfilename = $this->ResolveFilenameToAbsolute($renderfilename);
                }
                if (!@is_writable(dirname($renderfilename))) {
                        $this->DebugMessage('RenderToFile() failed because "'.dirname($renderfilename).'/" is not writable', __FILE__, __LINE__);
                        return false;
                }
                if (@is_file($renderfilename) && !@is_writable($renderfilename)) {
                        $this->DebugMessage('RenderToFile() failed because "'.$renderfilename.'" is not writable', __FILE__, __LINE__);
                        return false;
                }

                if ($this->RenderOutput()) {
                        if (file_put_contents($renderfilename, $this->outputImageData)) {
                                $this->DebugMessage('RenderToFile('.$renderfilename.') succeeded', __FILE__, __LINE__);
                                return true;
                        }
                        if (!@file_exists($renderfilename)) {
                                $this->DebugMessage('RenderOutput ['.$this->thumbnailFormat.'('.$renderfilename.')] did not appear to fail, but the output image does not exist either...', __FILE__, __LINE__);
                        }
                } else {
                        $this->DebugMessage('RenderOutput ['.$this->thumbnailFormat.'('.$renderfilename.')] failed', __FILE__, __LINE__);
                }
                return false;
        }


        // public:
        function OutputThumbnail() {
                $this->purgeTempFiles();

                if (!$this->useRawIMoutput && !is_resource($this->gdimg_output)) {
                        $this->DebugMessage('OutputThumbnail() failed because !is_resource($this->gdimg_output)', __FILE__, __LINE__);
                        return false;
                }
                if (headers_sent()) {
                        return $this->ErrorImage('OutputThumbnail() failed - headers already sent');
                        exit;
                }

                $downloadfilename = phpthumb_functions::SanitizeFilename(is_string($this->sia) ? $this->sia : ($this->down ? $this->down : 'phpThumb_generated_thumbnail'.'.'.$this->thumbnailFormat));
                $this->DebugMessage('Content-Disposition header filename set to "'.$downloadfilename.'"', __FILE__, __LINE__);
                if ($downloadfilename) {
                        header('Content-Disposition: '.($this->down ? 'attachment' : 'inline').'; filename="'.$downloadfilename.'"');
                } else {
                        $this->DebugMessage('failed to send Content-Disposition header because $downloadfilename is empty', __FILE__, __LINE__);
                }

                if ($this->useRawIMoutput) {

                        header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
                        echo $this->IMresizedData;

                } else {

                        $this->DebugMessage('ImageInterlace($this->gdimg_output, '.intval($this->config_output_interlace).')', __FILE__, __LINE__);
                        ImageInterlace($this->gdimg_output, intval($this->config_output_interlace));
                        switch ($this->thumbnailFormat) {
                                case 'jpeg':
                                        header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
                                        $ImageOutFunction = 'image'.$this->thumbnailFormat;
                                        @$ImageOutFunction($this->gdimg_output, '', $this->thumbnailQuality);
                                        break;

                                case 'png':
                                case 'gif':
                                        header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
                                        $ImageOutFunction = 'image'.$this->thumbnailFormat;
                                        @$ImageOutFunction($this->gdimg_output);
                                        break;

                                case 'bmp':
                                        if (!@include_once(dirname(__FILE__).'/phpthumb.bmp.php')) {
                                                $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.bmp.php" which is required for BMP format output', __FILE__, __LINE__);
                                                return false;
                                        }
                                        $phpthumb_bmp = new phpthumb_bmp();
                                        if (is_object($phpthumb_bmp)) {
                                                $bmp_data = $phpthumb_bmp->GD2BMPstring($this->gdimg_output);
                                                unset($phpthumb_bmp);
                                                if (!$bmp_data) {
                                                        $this->DebugMessage('$phpthumb_bmp->GD2BMPstring() failed', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
                                                echo $bmp_data;
                                        } else {
                                                $this->DebugMessage('new phpthumb_bmp() failed', __FILE__, __LINE__);
                                                return false;
                                        }
                                        break;

                                case 'ico':
                                        if (!@include_once(dirname(__FILE__).'/phpthumb.ico.php')) {
                                                $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.ico.php" which is required for ICO format output', __FILE__, __LINE__);
                                                return false;
                                        }
                                        $phpthumb_ico = new phpthumb_ico();
                                        if (is_object($phpthumb_ico)) {
                                                $arrayOfOutputImages = array($this->gdimg_output);
                                                $ico_data = $phpthumb_ico->GD2ICOstring($arrayOfOutputImages);
                                                unset($phpthumb_ico);
                                                if (!$ico_data) {
                                                        $this->DebugMessage('$phpthumb_ico->GD2ICOstring() failed', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                header('Content-Type: '.phpthumb_functions::ImageTypeToMIMEtype($this->thumbnailFormat));
                                                echo $ico_data;
                                        } else {
                                                $this->DebugMessage('new phpthumb_ico() failed', __FILE__, __LINE__);
                                                return false;
                                        }
                                        break;

                                default:
                                        $this->DebugMessage('OutputThumbnail failed because $this->thumbnailFormat "'.$this->thumbnailFormat.'" is not valid', __FILE__, __LINE__);
                                        return false;
                                        break;
                        }

                }
                return true;
        }


        // public:
        function CleanUpCacheDirectory() {
                $this->DebugMessage('CleanUpCacheDirectory() set to purge ('.(is_null($this->config_cache_maxage) ? 'NULL' : number_format($this->config_cache_maxage / 86400, 1)).' days; '.(is_null($this->config_cache_maxsize) ? 'NULL' : number_format($this->config_cache_maxsize / 1048576, 2)).' MB; '.(is_null($this->config_cache_maxfiles) ? 'NULL' : number_format($this->config_cache_maxfiles)).' files)', __FILE__, __LINE__);

                if (!is_writable($this->config_cache_directory)) {
                        $this->DebugMessage('CleanUpCacheDirectory() skipped because "'.$this->config_cache_directory.'" is not writable', __FILE__, __LINE__);
                        return true;
                }

                // cache status of cache directory for 1 hour to avoid hammering the filesystem functions
                $phpThumbCacheStats_filename = $this->config_cache_directory.DIRECTORY_SEPARATOR.'phpThumbCacheStats.txt';
                if (file_exists($phpThumbCacheStats_filename) && is_readable($phpThumbCacheStats_filename) && (filemtime($phpThumbCacheStats_filename) >= (time() - 3600))) {
                        $this->DebugMessage('CleanUpCacheDirectory() skipped because "'.$phpThumbCacheStats_filename.'" is recently modified', __FILE__, __LINE__);
                        return true;
                }
                touch($phpThumbCacheStats_filename);

                $DeletedKeys = array();
                $AllFilesInCacheDirectory = array();
                if (($this->config_cache_maxage > 0) || ($this->config_cache_maxsize > 0) || ($this->config_cache_maxfiles > 0)) {
                        $CacheDirOldFilesAge  = array();
                        $CacheDirOldFilesSize = array();
                        $AllFilesInCacheDirectory = phpthumb_functions::GetAllFilesInSubfolders($this->config_cache_directory);
                        foreach ($AllFilesInCacheDirectory as $fullfilename) {
                                if (preg_match('#^'.preg_quote($this->config_cache_prefix).'#i', $fullfilename) && file_exists($fullfilename)) {
                                        $CacheDirOldFilesAge[$fullfilename] = @fileatime($fullfilename);
                                        if ($CacheDirOldFilesAge[$fullfilename] == 0) {
                                                $CacheDirOldFilesAge[$fullfilename] = @filemtime($fullfilename);
                                        }
                                        $CacheDirOldFilesSize[$fullfilename] = @filesize($fullfilename);
                                }
                        }
                        if (empty($CacheDirOldFilesSize)) {
                                return true;
                        }
                        $DeletedKeys['zerobyte'] = array();
                        foreach ($CacheDirOldFilesSize as $fullfilename => $filesize) {
                                // purge all zero-size files more than an hour old (to prevent trying to delete just-created and/or in-use files)
                                $cutofftime = time() - 3600;
                                if (($filesize == 0) && ($CacheDirOldFilesAge[$fullfilename] < $cutofftime)) {
                                        $this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
                                        if (@unlink($fullfilename)) {
                                                $DeletedKeys['zerobyte'][] = $fullfilename;
                                                unset($CacheDirOldFilesSize[$fullfilename]);
                                                unset($CacheDirOldFilesAge[$fullfilename]);
                                        }
                                }
                        }
                        $this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['zerobyte']).' zero-byte files', __FILE__, __LINE__);
                        asort($CacheDirOldFilesAge);

                        if ($this->config_cache_maxfiles > 0) {
                                $TotalCachedFiles = count($CacheDirOldFilesAge);
                                $DeletedKeys['maxfiles'] = array();
                                foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
                                        if ($TotalCachedFiles > $this->config_cache_maxfiles) {
                                                $this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
                                                if (@unlink($fullfilename)) {
                                                        $TotalCachedFiles--;
                                                        $DeletedKeys['maxfiles'][] = $fullfilename;
                                                }
                                        } else {
                                                // there are few enough files to keep the rest
                                                break;
                                        }
                                }
                                $this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['maxfiles']).' files based on (config_cache_maxfiles='.$this->config_cache_maxfiles.')', __FILE__, __LINE__);
                                foreach ($DeletedKeys['maxfiles'] as $fullfilename) {
                                        unset($CacheDirOldFilesAge[$fullfilename]);
                                        unset($CacheDirOldFilesSize[$fullfilename]);
                                }
                        }

                        if ($this->config_cache_maxage > 0) {
                                $mindate = time() - $this->config_cache_maxage;
                                $DeletedKeys['maxage'] = array();
                                foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
                                        if ($filedate > 0) {
                                                if ($filedate < $mindate) {
                                                        $this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
                                                        if (@unlink($fullfilename)) {
                                                                $DeletedKeys['maxage'][] = $fullfilename;
                                                        }
                                                } else {
                                                        // the rest of the files are new enough to keep
                                                        break;
                                                }
                                        }
                                }
                                $this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['maxage']).' files based on (config_cache_maxage='.$this->config_cache_maxage.')', __FILE__, __LINE__);
                                foreach ($DeletedKeys['maxage'] as $fullfilename) {
                                        unset($CacheDirOldFilesAge[$fullfilename]);
                                        unset($CacheDirOldFilesSize[$fullfilename]);
                                }
                        }

                        if ($this->config_cache_maxsize > 0) {
                                $TotalCachedFileSize = array_sum($CacheDirOldFilesSize);
                                $DeletedKeys['maxsize'] = array();
                                foreach ($CacheDirOldFilesAge as $fullfilename => $filedate) {
                                        if ($TotalCachedFileSize > $this->config_cache_maxsize) {
                                                $this->DebugMessage('deleting "'.$fullfilename.'"', __FILE__, __LINE__);
                                                if (@unlink($fullfilename)) {
                                                        $TotalCachedFileSize -= $CacheDirOldFilesSize[$fullfilename];
                                                        $DeletedKeys['maxsize'][] = $fullfilename;
                                                }
                                        } else {
                                                // the total filesizes are small enough to keep the rest of the files
                                                break;
                                        }
                                }
                                $this->DebugMessage('CleanUpCacheDirectory() purged '.count($DeletedKeys['maxsize']).' files based on (config_cache_maxsize='.$this->config_cache_maxsize.')', __FILE__, __LINE__);
                                foreach ($DeletedKeys['maxsize'] as $fullfilename) {
                                        unset($CacheDirOldFilesAge[$fullfilename]);
                                        unset($CacheDirOldFilesSize[$fullfilename]);
                                }
                        }

                } else {
                        $this->DebugMessage('skipping CleanUpCacheDirectory() because config set to not use it', __FILE__, __LINE__);
                }
                $totalpurged = 0;
                foreach ($DeletedKeys as $key => $value) {
                        $totalpurged += count($value);
                }
                $this->DebugMessage('CleanUpCacheDirectory() purged '.$totalpurged.' files (from '.count($AllFilesInCacheDirectory).') based on config settings', __FILE__, __LINE__);
                if ($totalpurged > 0) {
                        $empty_dirs = array();
                        foreach ($AllFilesInCacheDirectory as $fullfilename) {
                                if (is_dir($fullfilename)) {
                                        $empty_dirs[realpath($fullfilename)] = 1;
                                } else {
                                        unset($empty_dirs[realpath(dirname($fullfilename))]);
                                }
                        }
                        krsort($empty_dirs);
                        $totalpurgeddirs = 0;
                        foreach ($empty_dirs as $empty_dir => $dummy) {
                                if ($empty_dir == $this->config_cache_directory) {
                                        // shouldn't happen, but just in case, don't let it delete actual cache directory
                                        continue;
                                } elseif (@rmdir($empty_dir)) {
                                        $totalpurgeddirs++;
                                } else {
                                        $this->DebugMessage('failed to rmdir('.$empty_dir.')', __FILE__, __LINE__);
                                }
                        }
                        $this->DebugMessage('purged '.$totalpurgeddirs.' empty directories', __FILE__, __LINE__);
                }
                return true;
        }


        // private: re-initializator (call between rendering multiple images with one object)
        function resetObject() {
                $class_vars = get_class_vars(get_class($this));
                foreach ($class_vars as $key => $value) {
                        // do not clobber debug or config info
                        if (!preg_match('#^(config_|debug|fatalerror)#i', $key)) {
                                $this->$key = $value;
                        }
                }
                $this->phpThumb(); // re-initialize some class variables
                return true;
        }


        function ResolveSource() {
                if (is_resource($this->gdimg_source)) {
                        $this->DebugMessage('ResolveSource() exiting because is_resource($this->gdimg_source)', __FILE__, __LINE__);
                        return true;
                }
                if ($this->rawImageData) {
                        $this->sourceFilename = null;
                        $this->DebugMessage('ResolveSource() exiting because $this->rawImageData is set ('.number_format(strlen($this->rawImageData)).' bytes)', __FILE__, __LINE__);
                        return true;
                }
                if ($this->sourceFilename) {
                        $this->sourceFilename = $this->ResolveFilenameToAbsolute($this->sourceFilename);
                        $this->DebugMessage('$this->sourceFilename set to "'.$this->sourceFilename.'"', __FILE__, __LINE__);
                } elseif ($this->src) {
                        $this->sourceFilename = $this->ResolveFilenameToAbsolute($this->src);
                        $this->DebugMessage('$this->sourceFilename set to "'.$this->sourceFilename.'" from $this->src ('.$this->src.')', __FILE__, __LINE__);
                } else {
                        return $this->ErrorImage('$this->sourceFilename and $this->src are both empty');
                }
                if ($this->iswindows && ((substr($this->sourceFilename, 0, 2) == '//') || (substr($this->sourceFilename, 0, 2) == '\\\\'))) {
                        // Windows \\share\filename.ext
                } elseif (preg_match('#^(f|ht)tps?\://#i', $this->sourceFilename)) {
                        // URL
                        if ($this->config_http_user_agent) {
                                ini_set('user_agent', $this->config_http_user_agent);
                        }
                } elseif (!@file_exists($this->sourceFilename)) {
                        return $this->ErrorImage('"'.$this->sourceFilename.'" does not exist');
                } elseif (!@is_file($this->sourceFilename)) {
                        return $this->ErrorImage('"'.$this->sourceFilename.'" is not a file');
                }
                return true;
        }

        function setOutputFormat() {
                static $alreadyCalled = false;
                if ($this->thumbnailFormat && $alreadyCalled) {
                        return true;
                }
                $alreadyCalled = true;

                $AvailableImageOutputFormats = array();
                $AvailableImageOutputFormats[] = 'text';
                if (@is_readable(dirname(__FILE__).'/phpthumb.ico.php')) {
                        $AvailableImageOutputFormats[] = 'ico';
                }
                if (@is_readable(dirname(__FILE__).'/phpthumb.bmp.php')) {
                        $AvailableImageOutputFormats[] = 'bmp';
                }

                $this->thumbnailFormat = 'ico';

                // Set default output format based on what image types are available
                if (function_exists('ImageTypes')) {
                        $imagetypes = ImageTypes();
                        if ($imagetypes & IMG_WBMP) {
                                $this->thumbnailFormat         = 'wbmp';
                                $AvailableImageOutputFormats[] = 'wbmp';
                        }
                        if ($imagetypes & IMG_GIF) {
                                $this->thumbnailFormat         = 'gif';
                                $AvailableImageOutputFormats[] = 'gif';
                        }
                        if ($imagetypes & IMG_PNG) {
                                $this->thumbnailFormat         = 'png';
                                $AvailableImageOutputFormats[] = 'png';
                        }
                        if ($imagetypes & IMG_JPG) {
                                $this->thumbnailFormat         = 'jpeg';
                                $AvailableImageOutputFormats[] = 'jpeg';
                        }
                } else {
                        //return $this->ErrorImage('ImageTypes() does not exist - GD support might not be enabled?');
                        $this->DebugMessage('ImageTypes() does not exist - GD support might not be enabled?',  __FILE__, __LINE__);
                }
                if ($this->ImageMagickVersion()) {
                        $IMformats = array('jpeg', 'png', 'gif', 'bmp', 'ico', 'wbmp');
                        $this->DebugMessage('Addding ImageMagick formats to $AvailableImageOutputFormats ('.implode(';', $AvailableImageOutputFormats).')', __FILE__, __LINE__);
                        foreach ($IMformats as $key => $format) {
                                $AvailableImageOutputFormats[] = $format;
                        }
                }
                $AvailableImageOutputFormats = array_unique($AvailableImageOutputFormats);
                $this->DebugMessage('$AvailableImageOutputFormats = array('.implode(';', $AvailableImageOutputFormats).')', __FILE__, __LINE__);

                $this->f = preg_replace('#[^a-z]#', '', strtolower($this->f));
                if (strtolower($this->config_output_format) == 'jpg') {
                        $this->config_output_format = 'jpeg';
                }
                if (strtolower($this->f) == 'jpg') {
                        $this->f = 'jpeg';
                }
                if (phpthumb_functions::CaseInsensitiveInArray($this->config_output_format, $AvailableImageOutputFormats)) {
                        // set output format to config default if that format is available
                        $this->DebugMessage('$this->thumbnailFormat set to $this->config_output_format "'.strtolower($this->config_output_format).'"', __FILE__, __LINE__);
                        $this->thumbnailFormat = strtolower($this->config_output_format);
                } elseif ($this->config_output_format) {
                        $this->DebugMessage('$this->thumbnailFormat staying as "'.$this->thumbnailFormat.'" because $this->config_output_format ('.strtolower($this->config_output_format).') is not in $AvailableImageOutputFormats', __FILE__, __LINE__);
                }
                if ($this->f && (phpthumb_functions::CaseInsensitiveInArray($this->f, $AvailableImageOutputFormats))) {
                        // override output format if $this->f is set and that format is available
                        $this->DebugMessage('$this->thumbnailFormat set to $this->f "'.strtolower($this->f).'"', __FILE__, __LINE__);
                        $this->thumbnailFormat = strtolower($this->f);
                } elseif ($this->f) {
                        $this->DebugMessage('$this->thumbnailFormat staying as "'.$this->thumbnailFormat.'" because $this->f ('.strtolower($this->f).') is not in $AvailableImageOutputFormats', __FILE__, __LINE__);
                }

                // for JPEG images, quality 1 (worst) to 99 (best)
                // quality < 25 is nasty, with not much size savings - not recommended
                // problems with 100 - invalid JPEG?
                $this->thumbnailQuality = max(1, min(99, ($this->q ? intval($this->q) : 75)));
                $this->DebugMessage('$this->thumbnailQuality set to "'.$this->thumbnailQuality.'"', __FILE__, __LINE__);

                return true;
        }

        function setCacheDirectory() {
                // resolve cache directory to absolute pathname
                $this->DebugMessage('setCacheDirectory() starting with config_cache_directory = "'.$this->config_cache_directory.'"', __FILE__, __LINE__);
                if (substr($this->config_cache_directory, 0, 1) == '.') {
                        if (preg_match('#^(f|ht)tps?\://#i', $this->src)) {
                                if (!$this->config_cache_disable_warning) {
                                        $this->ErrorImage('$this->config_cache_directory ('.$this->config_cache_directory.') cannot be used for remote images. Adjust "cache_directory" or "cache_disable_warning" in phpThumb.config.php');
                                }
                        } elseif ($this->src) {
                                // resolve relative cache directory to source image
                                $this->config_cache_directory = dirname($this->ResolveFilenameToAbsolute($this->src)).DIRECTORY_SEPARATOR.$this->config_cache_directory;
                        } else {
                                // $this->new is probably set
                        }
                }
                if (substr($this->config_cache_directory, -1) == '/') {
                        $this->config_cache_directory = substr($this->config_cache_directory, 0, -1);
                }
                if ($this->iswindows) {
                        $this->config_cache_directory = str_replace('/', DIRECTORY_SEPARATOR, $this->config_cache_directory);
                }
                if ($this->config_cache_directory) {
                        $real_cache_path = realpath($this->config_cache_directory);
                        if (!$real_cache_path) {
                                $this->DebugMessage('realpath($this->config_cache_directory) failed for "'.$this->config_cache_directory.'"', __FILE__, __LINE__);
                                if (!is_dir($this->config_cache_directory)) {
                                        $this->DebugMessage('!is_dir('.$this->config_cache_directory.')', __FILE__, __LINE__);
                                }
                        }
                        if ($real_cache_path) {
                                $this->DebugMessage('setting config_cache_directory to realpath('.$this->config_cache_directory.') = "'.$real_cache_path.'"', __FILE__, __LINE__);
                                $this->config_cache_directory = $real_cache_path;
                        }
                }
                if (!is_dir($this->config_cache_directory)) {
                        if (!$this->config_cache_disable_warning) {
                                $this->ErrorImage('$this->config_cache_directory ('.$this->config_cache_directory.') does not exist. Adjust "cache_directory" or "cache_disable_warning" in phpThumb.config.php');
                        }
                        $this->DebugMessage('$this->config_cache_directory ('.$this->config_cache_directory.') is not a directory', __FILE__, __LINE__);
                        $this->config_cache_directory = null;
                } elseif (!@is_writable($this->config_cache_directory)) {
                        $this->DebugMessage('$this->config_cache_directory is not writable ('.$this->config_cache_directory.')', __FILE__, __LINE__);
                }

                $this->InitializeTempDirSetting();
                if (!@is_dir($this->config_temp_directory) && !@is_writable($this->config_temp_directory) && @is_dir($this->config_cache_directory) && @is_writable($this->config_cache_directory)) {
                        $this->DebugMessage('setting $this->config_temp_directory = $this->config_cache_directory ('.$this->config_cache_directory.')', __FILE__, __LINE__);
                        $this->config_temp_directory = $this->config_cache_directory;
                }
                return true;
        }


        function ResolveFilenameToAbsolute($filename) {
                if (empty($filename)) {
                        return false;
                }

                if (preg_match('#^[a-z0-9]+\:/{1,2}#i', $filename)) {
                        // eg: http://host/path/file.jpg (HTTP URL)
                        // eg: ftp://host/path/file.jpg  (FTP URL)
                        // eg: data1:/path/file.jpg      (Netware path)

                        //$AbsoluteFilename = $filename;
                        return $filename;

                } elseif ($this->iswindows && isset($filename{1}) && ($filename{1} == ':')) {

                        // absolute pathname (Windows)
                        $AbsoluteFilename = $filename;

                } elseif ($this->iswindows && ((substr($filename, 0, 2) == '//') || (substr($filename, 0, 2) == '\\\\'))) {

                        // absolute pathname (Windows)
                        $AbsoluteFilename = $filename;

                } elseif ($filename{0} == '/') {

                        if (@is_readable($filename) && !@is_readable($this->config_document_root.$filename)) {

                                // absolute filename (*nix)
                                $AbsoluteFilename = $filename;

                        } elseif (isset($filename{1}) && ($filename{1} == '~')) {

                                // /~user/path
                                if ($ApacheLookupURIarray = phpthumb_functions::ApacheLookupURIarray($filename)) {
                                        $AbsoluteFilename = $ApacheLookupURIarray['filename'];
                                } else {
                                        $AbsoluteFilename = realpath($filename);
                                        if (@is_readable($AbsoluteFilename)) {
                                                $this->DebugMessage('phpthumb_functions::ApacheLookupURIarray() failed for "'.$filename.'", but the correct filename ('.$AbsoluteFilename.') seems to have been resolved with realpath($filename)', __FILE__, __LINE__);
                                        } elseif (is_dir(dirname($AbsoluteFilename))) {
                                                $this->DebugMessage('phpthumb_functions::ApacheLookupURIarray() failed for "'.dirname($filename).'", but the correct directory ('.dirname($AbsoluteFilename).') seems to have been resolved with realpath(.)', __FILE__, __LINE__);
                                        } else {
                                                return $this->ErrorImage('phpthumb_functions::ApacheLookupURIarray() failed for "'.$filename.'". This has been known to fail on Apache2 - try using the absolute filename for the source image (ex: "/home/user/httpdocs/image.jpg" instead of "/~user/image.jpg")');
                                        }
                                }

                        } else {

                                // relative filename (any OS)
                                if (preg_match('#^'.preg_quote($this->config_document_root).'#', $filename)) {
                                        $AbsoluteFilename = $filename;
                                        $this->DebugMessage('ResolveFilenameToAbsolute() NOT prepending $this->config_document_root ('.$this->config_document_root.') to $filename ('.$filename.') resulting in ($AbsoluteFilename = "'.$AbsoluteFilename.'")', __FILE__, __LINE__);
                                } else {
                                        $AbsoluteFilename = $this->config_document_root.$filename;
                                        $this->DebugMessage('ResolveFilenameToAbsolute() prepending $this->config_document_root ('.$this->config_document_root.') to $filename ('.$filename.') resulting in ($AbsoluteFilename = "'.$AbsoluteFilename.'")', __FILE__, __LINE__);
                                }

                        }

                } else {

                        // relative to current directory (any OS)
                        //$AbsoluteFilename = $this->config_document_root.preg_replace('#[/\\\\]#', DIRECTORY_SEPARATOR, dirname(@$_SERVER['PHP_SELF'])).DIRECTORY_SEPARATOR.preg_replace('#[/\\\\]#', DIRECTORY_SEPARATOR, $filename);
                        $AbsoluteFilename = dirname(__FILE__).DIRECTORY_SEPARATOR.preg_replace('#[/\\\\]#', DIRECTORY_SEPARATOR, $filename);

                        //if (!@file_exists($AbsoluteFilename) && @file_exists(realpath($this->DotPadRelativeDirectoryPath($filename)))) {
                        //      $AbsoluteFilename = realpath($this->DotPadRelativeDirectoryPath($filename));
                        //}

                        if (substr(dirname(@$_SERVER['PHP_SELF']), 0, 2) == '/~') {
                                if ($ApacheLookupURIarray = phpthumb_functions::ApacheLookupURIarray(dirname(@$_SERVER['PHP_SELF']))) {
                                        $AbsoluteFilename = $ApacheLookupURIarray['filename'].DIRECTORY_SEPARATOR.$filename;
                                } else {
                                        $AbsoluteFilename = realpath('.').DIRECTORY_SEPARATOR.$filename;
                                        if (@is_readable($AbsoluteFilename)) {
                                                $this->DebugMessage('phpthumb_functions::ApacheLookupURIarray() failed for "'.dirname(@$_SERVER['PHP_SELF']).'", but the correct filename ('.$AbsoluteFilename.') seems to have been resolved with realpath(.)/$filename', __FILE__, __LINE__);
                                        } elseif (is_dir(dirname($AbsoluteFilename))) {
                                                $this->DebugMessage('phpthumb_functions::ApacheLookupURIarray() failed for "'.dirname(@$_SERVER['PHP_SELF']).'", but the correct directory ('.dirname($AbsoluteFilename).') seems to have been resolved with realpath(.)', __FILE__, __LINE__);
                                        } else {
                                                return $this->ErrorImage('phpthumb_functions::ApacheLookupURIarray() failed for "'.dirname(@$_SERVER['PHP_SELF']).'". This has been known to fail on Apache2 - try using the absolute filename for the source image');
                                        }
                                }
                        }

                }
                if (is_link($AbsoluteFilename)) {
                        $this->DebugMessage('is_link()==true, changing "'.$AbsoluteFilename.'" to "'.readlink($AbsoluteFilename).'"', __FILE__, __LINE__);
                        $AbsoluteFilename = readlink($AbsoluteFilename);
                }
                if (realpath($AbsoluteFilename)) {
                        $AbsoluteFilename = realpath($AbsoluteFilename);
                }
                if ($this->iswindows) {
                        $AbsoluteFilename = preg_replace('#^'.preg_quote(realpath($this->config_document_root)).'#i', realpath($this->config_document_root), $AbsoluteFilename);
                        $AbsoluteFilename = str_replace(DIRECTORY_SEPARATOR, '/', $AbsoluteFilename);
                }
                if (!$this->config_allow_src_above_docroot && !preg_match('#^'.preg_quote(str_replace(DIRECTORY_SEPARATOR, '/', realpath($this->config_document_root))).'#', $AbsoluteFilename)) {
                        $this->DebugMessage('!$this->config_allow_src_above_docroot therefore setting "'.$AbsoluteFilename.'" (outside "'.realpath($this->config_document_root).'") to null', __FILE__, __LINE__);
                        return false;
                }
                if (!$this->config_allow_src_above_phpthumb && !preg_match('#^'.preg_quote(str_replace(DIRECTORY_SEPARATOR, '/', dirname(__FILE__))).'#', $AbsoluteFilename)) {
                        $this->DebugMessage('!$this->config_allow_src_above_phpthumb therefore setting "'.$AbsoluteFilename.'" (outside "'.dirname(__FILE__).'") to null', __FILE__, __LINE__);
                        return false;
                }
                return $AbsoluteFilename;
        }

        function file_exists_ignoreopenbasedir($filename, $cached=true) {
                static $open_basedirs = null;
                static $file_exists_cache = array();
                if (!$cached || !isset($file_exists_cache[$filename])) {
                        if (is_null($open_basedirs)) {
                                $open_basedirs = explode(';', ini_get('open_basedir'));
                        }
                        if (empty($open_basedirs) || in_array(dirname($filename), $open_basedirs)) {
                                $file_exists_cache[$filename] = file_exists($filename);
                        } elseif ($this->iswindows) {
                                $ls_filename = trim(phpthumb_functions::SafeExec('dir '.escapeshellarg($filename)));
                                $file_exists_cache[$filename] = !preg_match('#File Not Found#i', $ls_filename);
                        } else {
                                $ls_filename = trim(phpthumb_functions::SafeExec('ls '.escapeshellarg($filename)));
                                $file_exists_cache[$filename] = ($ls_filename == $filename);
                        }
                }
                return $file_exists_cache[$filename];
        }

        function ImageMagickWhichConvert() {
                static $WhichConvert = null;
                if (is_null($WhichConvert)) {
                        if ($this->iswindows) {
                                $WhichConvert = false;
                        } else {
                                $WhichConvert = trim(phpthumb_functions::SafeExec('which convert'));
                        }
                }
                return $WhichConvert;
        }

        function ImageMagickCommandlineBase() {
                static $commandline = null;
                if (is_null($commandline)) {
                        if ($this->issafemode) {
                                $commandline = '';
                                return $commandline;
                        }
                        $commandline = (!is_null($this->config_imagemagick_path) ? $this->config_imagemagick_path : '');

                        if ($this->config_imagemagick_path && ($this->config_imagemagick_path != realpath($this->config_imagemagick_path))) {
                                if (@is_executable(realpath($this->config_imagemagick_path))) {
                                        $this->DebugMessage('Changing $this->config_imagemagick_path ('.$this->config_imagemagick_path.') to realpath($this->config_imagemagick_path) ('.realpath($this->config_imagemagick_path).')', __FILE__, __LINE__);
                                        $this->config_imagemagick_path = realpath($this->config_imagemagick_path);
                                } else {
                                        $this->DebugMessage('Leaving $this->config_imagemagick_path as ('.$this->config_imagemagick_path.') because !is_execuatable(realpath($this->config_imagemagick_path)) ('.realpath($this->config_imagemagick_path).')', __FILE__, __LINE__);
                                }
                        }
                        $this->DebugMessage('                  file_exists('.$this->config_imagemagick_path.') = '.intval(                        @file_exists($this->config_imagemagick_path)), __FILE__, __LINE__);
                        $this->DebugMessage('file_exists_ignoreopenbasedir('.$this->config_imagemagick_path.') = '.intval($this->file_exists_ignoreopenbasedir($this->config_imagemagick_path)), __FILE__, __LINE__);
                        $this->DebugMessage('                      is_file('.$this->config_imagemagick_path.') = '.intval(                            @is_file($this->config_imagemagick_path)), __FILE__, __LINE__);
                        $this->DebugMessage('                is_executable('.$this->config_imagemagick_path.') = '.intval(                      @is_executable($this->config_imagemagick_path)), __FILE__, __LINE__);

                        if ($this->file_exists_ignoreopenbasedir($this->config_imagemagick_path)) {
                                $this->DebugMessage('using ImageMagick path from $this->config_imagemagick_path ('.$this->config_imagemagick_path.')', __FILE__, __LINE__);
                                if ($this->iswindows) {
                                        $commandline = substr($this->config_imagemagick_path, 0, 2).' && cd '.escapeshellarg(str_replace('/', DIRECTORY_SEPARATOR, substr(dirname($this->config_imagemagick_path), 2))).' && '.escapeshellarg(basename($this->config_imagemagick_path));
                                } else {
                                        $commandline = escapeshellarg($this->config_imagemagick_path);
                                }
                                return $commandline;
                        }

                        $which_convert = $this->ImageMagickWhichConvert();
                        $IMversion     = $this->ImageMagickVersion();

                        if ($which_convert && ($which_convert{0} == '/') && $this->file_exists_ignoreopenbasedir($which_convert)) {

                                // `which convert` *should* return the path if "convert" exist, or nothing if it doesn't
                                // other things *may* get returned, like "sh: convert: not found" or "no convert in /usr/local/bin /usr/sbin /usr/bin /usr/ccs/bin"
                                // so only do this if the value returned exists as a file
                                $this->DebugMessage('using ImageMagick path from `which convert` ('.$which_convert.')', __FILE__, __LINE__);
                                $commandline = 'convert';

                        } elseif ($IMversion) {

                                $this->DebugMessage('setting ImageMagick path to $this->config_imagemagick_path ('.$this->config_imagemagick_path.') ['.$IMversion.']', __FILE__, __LINE__);
                                $commandline = $this->config_imagemagick_path;

                        } else {

                                $this->DebugMessage('ImageMagickThumbnailToGD() aborting because cannot find convert in $this->config_imagemagick_path ('.$this->config_imagemagick_path.'), and `which convert` returned ('.$which_convert.')', __FILE__, __LINE__);
                                $commandline = '';

                        }
                }
                return $commandline;
        }

        function ImageMagickVersion($returnRAW=false) {
                static $versionstring = null;
                if (is_null($versionstring)) {
                        $versionstring = array(0=>false, 1=>false);
                        $commandline = $this->ImageMagickCommandlineBase();
                        $commandline = (!is_null($commandline) ? $commandline : '');

                        if ($commandline) {
                                $commandline .= ' --version';
                                $this->DebugMessage('ImageMagick version checked with "'.$commandline.'"', __FILE__, __LINE__);
                                $versionstring[1] = trim(phpthumb_functions::SafeExec($commandline));
                                if (preg_match('#^Version: [^0-9]*([ 0-9\\.\\:Q/\\-]+) (http|file)\:#i', $versionstring[1], $matches)) {
                                        $versionstring[0] = $matches[1];
                                } else {
                                        $versionstring[0] = false;
                                        $this->DebugMessage('ImageMagick did not return recognized version string ('.$versionstring[1].')', __FILE__, __LINE__);
                                }
                                $this->DebugMessage('ImageMagick convert --version says "'.@$matches[0].'"', __FILE__, __LINE__);
                        }
                }
                return $versionstring[intval($returnRAW)];
        }

        function ImageMagickSwitchAvailable($switchname) {
                static $IMoptions = null;
                if (is_null($IMoptions)) {
                        $IMoptions = array();
                        $commandline = $this->ImageMagickCommandlineBase();
                        if (!is_null($commandline)) {
                                $commandline .= ' -help';
                                $IMhelp_lines = explode("\n", phpthumb_functions::SafeExec($commandline));
                                foreach ($IMhelp_lines as $line) {
                                        if (preg_match('#^[\\+\\-]([a-z\\-]+) #', trim($line), $matches)) {
                                                $IMoptions[$matches[1]] = true;
                                        }
                                }
                        }
                }
                if (is_array($switchname)) {
                        $allOK = true;
                        foreach ($switchname as $key => $value) {
                                if (!isset($IMoptions[$value])) {
                                        $allOK = false;
                                        break;
                                }
                        }
                        $this->DebugMessage('ImageMagickSwitchAvailable('.implode(';', $switchname).') = '.intval($allOK).'', __FILE__, __LINE__);
                } else {
                        $allOK = isset($IMoptions[$switchname]);
                        $this->DebugMessage('ImageMagickSwitchAvailable('.$switchname.') = '.intval($allOK).'', __FILE__, __LINE__);
                }
                return $allOK;
        }

        function ImageMagickFormatsList() {
                static $IMformatsList = null;
                if (is_null($IMformatsList)) {
                        $IMformatsList = '';
                        $commandline = $this->ImageMagickCommandlineBase();
                        if (!is_null($commandline)) {
                                $commandline = dirname($commandline).DIRECTORY_SEPARATOR.str_replace('convert', 'identify', basename($commandline));
                                $commandline .= ' -list format';
                                $IMformatsList = phpthumb_functions::SafeExec($commandline);
                        }
                }
                return $IMformatsList;
        }

        function SourceDataToTempFile() {
                if ($IMtempSourceFilename = $this->phpThumb_tempnam()) {
                        $IMtempSourceFilename = realpath($IMtempSourceFilename);
                        ob_start();
                        $fp_tempfile = fopen($IMtempSourceFilename, 'wb');
                        $tempfile_open_error  = ob_get_contents();
                        ob_end_clean();
                        if ($fp_tempfile) {
                                fwrite($fp_tempfile, $this->rawImageData);
                                fclose($fp_tempfile);
                                $this->sourceFilename = $IMtempSourceFilename;
                                $this->DebugMessage('ImageMagickThumbnailToGD() setting $this->sourceFilename to "'.$IMtempSourceFilename.'" from $this->rawImageData ('.strlen($this->rawImageData).' bytes)', __FILE__, __LINE__);
                        } else {
                                $this->DebugMessage('ImageMagickThumbnailToGD() FAILED setting $this->sourceFilename to "'.$IMtempSourceFilename.'" (failed to open for writing: "'.$tempfile_open_error.'")', __FILE__, __LINE__);
                        }
                        unset($tempfile_open_error, $IMtempSourceFilename);
                        return true;
                }
                $this->DebugMessage('SourceDataToTempFile() FAILED because $this->phpThumb_tempnam() failed', __FILE__, __LINE__);
                return false;
        }

        function ImageMagickThumbnailToGD() {
                // http://www.imagemagick.org/script/command-line-options.php

                $this->useRawIMoutput = true;
                if (phpthumb_functions::gd_version()) {
                        // if GD is not available, must use whatever ImageMagick can output

                        // $UnAllowedParameters contains options that can only be processed in GD, not ImageMagick
                        // note: 'fltr' *may* need to be processed by GD, but we'll check that in more detail below
                        $UnAllowedParameters = array('xto', 'ar', 'bg', 'bc');
                        // 'ra' may be part of this list, if not a multiple of 90°
                        foreach ($UnAllowedParameters as $parameter) {
                                if (isset($this->$parameter)) {
                                        $this->DebugMessage('$this->useRawIMoutput=false because "'.$parameter.'" is set', __FILE__, __LINE__);
                                        $this->useRawIMoutput = false;
                                        break;
                                }
                        }
                }
                $this->DebugMessage('$this->useRawIMoutput='.($this->useRawIMoutput ? 'true' : 'false').' after checking $UnAllowedParameters', __FILE__, __LINE__);
                $outputFormat = $this->thumbnailFormat;
                if (phpthumb_functions::gd_version()) {
                        if ($this->useRawIMoutput) {
                                switch ($this->thumbnailFormat) {
                                        case 'gif':
                                                $ImageCreateFunction = 'ImageCreateFromGIF';
                                                $this->is_alpha = true;
                                                break;
                                        case 'png':
                                                $ImageCreateFunction = 'ImageCreateFromPNG';
                                                $this->is_alpha = true;
                                                break;
                                        case 'jpg':
                                        case 'jpeg':
                                                $ImageCreateFunction = 'ImageCreateFromJPEG';
                                                break;
                                        default:
                                                $this->DebugMessage('Forcing output to PNG because $this->thumbnailFormat ('.$this->thumbnailFormat.' is not a GD-supported format)', __FILE__, __LINE__);
                                                $outputFormat = 'png';
                                                $ImageCreateFunction = 'ImageCreateFromPNG';
                                                $this->is_alpha = true;
                                                $this->useRawIMoutput = false;
                                                break;
                                }
                                if (!function_exists(@$ImageCreateFunction)) {
                                        // ImageMagickThumbnailToGD() depends on ImageCreateFromPNG/ImageCreateFromGIF
                                        //$this->DebugMessage('ImageMagickThumbnailToGD() aborting because '.@$ImageCreateFunction.'() is not available', __FILE__, __LINE__);
                                        $this->useRawIMoutput = true;
                                        //return false;
                                }
                        } else {
                                $outputFormat = 'png';
                                $ImageCreateFunction = 'ImageCreateFromPNG';
                                $this->is_alpha = true;
                                $this->useRawIMoutput = false;
                        }
                }

                // http://freealter.org/doc_distrib/ImageMagick-5.1.1/www/convert.html
                if (!$this->sourceFilename && $this->rawImageData) {
                        $this->SourceDataToTempFile();
                }
                if (!$this->sourceFilename) {
                        $this->DebugMessage('ImageMagickThumbnailToGD() aborting because $this->sourceFilename is empty', __FILE__, __LINE__);
                        $this->useRawIMoutput = false;
                        return false;
                }
                if ($this->issafemode) {
                        $this->DebugMessage('ImageMagickThumbnailToGD() aborting because safe_mode is enabled', __FILE__, __LINE__);
                        $this->useRawIMoutput = false;
                        return false;
                }
// TO BE FIXED
//if (true) {
//      $this->DebugMessage('ImageMagickThumbnailToGD() aborting it is broken right now', __FILE__, __LINE__);
//      $this->useRawIMoutput = false;
//      return false;
//}

                $commandline = $this->ImageMagickCommandlineBase();
                if ($commandline) {
                        if ($IMtempfilename = $this->phpThumb_tempnam()) {
                                $IMtempfilename = realpath($IMtempfilename);

                                $IMuseExplicitImageOutputDimensions = false;
                                if ($this->ImageMagickSwitchAvailable('thumbnail') && $this->config_imagemagick_use_thumbnail) {
                                        $IMresizeParameter = 'thumbnail';
                                } else {
                                        $IMresizeParameter = 'resize';

                                        // some (older? around 2002) versions of IM won't accept "-resize 100x" but require "-resize 100x100"
                                        $commandline_test = $this->ImageMagickCommandlineBase().' logo: -resize 1x '.escapeshellarg($IMtempfilename).' 2>&1';
                                        $IMresult_test = phpthumb_functions::SafeExec($commandline_test);
                                        $IMuseExplicitImageOutputDimensions = preg_match('#image dimensions are zero#i', $IMresult_test);
                                        $this->DebugMessage('IMuseExplicitImageOutputDimensions = '.intval($IMuseExplicitImageOutputDimensions), __FILE__, __LINE__);
                                        if ($fp_im_temp = @fopen($IMtempfilename, 'wb')) {
                                                // erase temp image so ImageMagick logo doesn't get output if other processing fails
                                                fclose($fp_im_temp);
                                        }
                                }


                                if (!is_null($this->dpi) && $this->ImageMagickSwitchAvailable('density')) {
                                        // for raster source formats only (WMF, PDF, etc)
                                        $commandline .= ' -density '.escapeshellarg($this->dpi);
                                }
                                ob_start();
                                $getimagesize = GetImageSize($this->sourceFilename);
                                $GetImageSizeError = ob_get_contents();
                                ob_end_clean();
                                if (is_array($getimagesize)) {
                                        $this->DebugMessage('GetImageSize('.$this->sourceFilename.') SUCCEEDED: '.print_r($getimagesize, true), __FILE__, __LINE__);
                                } else {
                                        $this->DebugMessage('GetImageSize('.$this->sourceFilename.') FAILED with error "'.$GetImageSizeError.'"', __FILE__, __LINE__);
                                }
                                if (is_array($getimagesize)) {
                                        $this->DebugMessage('GetImageSize('.$this->sourceFilename.') returned [w='.$getimagesize[0].';h='.$getimagesize[1].';f='.$getimagesize[2].']', __FILE__, __LINE__);
                                        $this->source_width  = $getimagesize[0];
                                        $this->source_height = $getimagesize[1];
                                        $this->DebugMessage('source dimensions set to '.$this->source_width.'x'.$this->source_height, __FILE__, __LINE__);
                                        $this->SetOrientationDependantWidthHeight();

                                        if (!preg_match('#('.implode('|', $this->AlphaCapableFormats).')#i', $outputFormat)) {
                                                // not a transparency-capable format
                                                $commandline .= ' -background '.escapeshellarg('#'.($this->bg ? $this->bg : 'FFFFFF'));
                                                if ($getimagesize[2] == IMAGETYPE_GIF) {
                                                        $commandline .= ' -flatten';
                                                }
                                        }
                                        if ($getimagesize[2] == IMAGETYPE_GIF) {
                                                $commandline .= ' -coalesce'; // may be needed for animated GIFs
                                        }
                                        if ($this->source_width || $this->source_height) {
                                                if ($this->zc) {

                                                        $borderThickness = 0;
                                                        if (!empty($this->fltr)) {
                                                                foreach ($this->fltr as $key => $value) {
                                                                        if (preg_match('#^bord\|([0-9]+)#', $value, $matches)) {
                                                                                $borderThickness = $matches[1];
                                                                                break;
                                                                        }
                                                                }
                                                        }
                                                        $wAll = intval(max($this->w, $this->wp, $this->wl, $this->ws)) - (2 * $borderThickness);
                                                        $hAll = intval(max($this->h, $this->hp, $this->hl, $this->hs)) - (2 * $borderThickness);
                                                        $imAR = $this->source_width / $this->source_height;
                                                        $zcAR = (($wAll && $hAll) ? $wAll / $hAll : 1);
                                                        $side  = phpthumb_functions::nonempty_min($this->source_width, $this->source_height, max($wAll, $hAll));
                                                        $sideX = phpthumb_functions::nonempty_min($this->source_width,                       $wAll, round($hAll * $zcAR));
                                                        $sideY = phpthumb_functions::nonempty_min(                     $this->source_height, $hAll, round($wAll / $zcAR));

                                                        $thumbnailH = round(max($sideY, ($sideY * $zcAR) / $imAR));
                                                        $commandline .= ' -'.$IMresizeParameter.' '.escapeshellarg(($IMuseExplicitImageOutputDimensions ? $thumbnailH : '').'x'.$thumbnailH);

                                                        switch (strtoupper($this->zc)) {
                                                                case 'T':
                                                                        $commandline .= ' -gravity north';
                                                                        break;
                                                                case 'B':
                                                                        $commandline .= ' -gravity south';
                                                                        break;
                                                                case 'L':
                                                                        $commandline .= ' -gravity west';
                                                                        break;
                                                                case 'R':
                                                                        $commandline .= ' -gravity east';
                                                                        break;
                                                                case 'TL':
                                                                        $commandline .= ' -gravity northwest';
                                                                        break;
                                                                case 'TR':
                                                                        $commandline .= ' -gravity northeast';
                                                                        break;
                                                                case 'BL':
                                                                        $commandline .= ' -gravity southwest';
                                                                        break;
                                                                case 'BR':
                                                                        $commandline .= ' -gravity southeast';
                                                                        break;
                                                                case '1':
                                                                case 'C':
                                                                default:
                                                                        $commandline .= ' -gravity center';
                                                                        break;
                                                        }

                                                        if (($wAll > 0) && ($hAll > 0)) {
                                                                $commandline .= ' -crop '.escapeshellarg($wAll.'x'.$hAll.'+0+0');
                                                        } else {
                                                                $commandline .= ' -crop '.escapeshellarg($side.'x'.$side.'+0+0');
                                                        }
                                                        if ($this->ImageMagickSwitchAvailable('repage')) {
                                                                $commandline .= ' +repage';
                                                        } else {
                                                                $this->DebugMessage('Skipping "+repage" because ImageMagick (v'.$this->ImageMagickVersion().') does not support it', __FILE__, __LINE__);
                                                        }

                                                } elseif ($this->sw || $this->sh || $this->sx || $this->sy) {

                                                        $crop_param   = '';
                                                        $crop_param  .=     ($this->sw ? (($this->sw < 2) ? round($this->sw * $this->source_width)  : $this->sw) : $this->source_width);
                                                        $crop_param  .= 'x'.($this->sh ? (($this->sh < 2) ? round($this->sh * $this->source_height) : $this->sh) : $this->source_height);
                                                        $crop_param  .= '+'.(($this->sx < 2) ? round($this->sx * $this->source_width)  : $this->sx);
                                                        $crop_param  .= '+'.(($this->sy < 2) ? round($this->sy * $this->source_height) : $this->sy);
// TO BE FIXED
// makes 1x1 output
// http://trainspotted.com/phpThumb/phpThumb.php?src=/content/CNR/47/CNR-4728-LD-L-20110723-898.jpg&w=100&h=100&far=1&f=png&fltr[]=lvl&sx=0.05&sy=0.25&sw=0.92&sh=0.42
// '/usr/bin/convert' -density 150 -thumbnail 100x100 -contrast-stretch '0.1%' '/var/www/vhosts/trainspotted.com/httpdocs/content/CNR/47/CNR-4728-LD-L-20110723-898.jpg[0]' png:'/var/www/vhosts/trainspotted.com/httpdocs/phpThumb/_cache/pThumbIIUlvj'
//                                                      $commandline .= ' -crop '.escapeshellarg($crop_param);

                                                        // this is broken for aoe=1, but unsure how to fix. Send advice to info@silisoftware.com
                                                        if ($this->w || $this->h) {
                                                                //if ($this->ImageMagickSwitchAvailable('repage')) {
if (false) {
// TO BE FIXED
// newer versions of ImageMagick require -repage <geometry>
                                                                        $commandline .= ' -repage';
                                                                } else {
                                                                        $this->DebugMessage('Skipping "-repage" because ImageMagick (v'.$this->ImageMagickVersion().') does not support it', __FILE__, __LINE__);
                                                                }
                                                                if ($IMuseExplicitImageOutputDimensions) {
                                                                        if ($this->w && !$this->h) {
                                                                                $this->h = ceil($this->w / ($this->source_width / $this->source_height));
                                                                        } elseif ($this->h && !$this->w) {
                                                                                $this->w = ceil($this->h * ($this->source_width / $this->source_height));
                                                                        }
                                                                }
                                                                $commandline .= ' -'.$IMresizeParameter.' '.escapeshellarg($this->w.'x'.$this->h);
                                                        }

                                                } else {

                                                        if ($this->iar && (intval($this->w) > 0) && (intval($this->h) > 0)) {
                                                                list($nw, $nh) = phpthumb_functions::TranslateWHbyAngle($this->w, $this->h, $this->ra);
                                                                $nw = ((round($nw) != 0) ? round($nw) : '');
                                                                $nh = ((round($nh) != 0) ? round($nh) : '');
                                                                $commandline .= ' -'.$IMresizeParameter.' '.escapeshellarg($nw.'x'.$nh.'!');
                                                        } else {
                                                                $this->w = ((($this->aoe || $this->far) && $this->w) ? $this->w : ($this->w ? phpthumb_functions::nonempty_min($this->w, $getimagesize[0]) : ''));
                                                                $this->h = ((($this->aoe || $this->far) && $this->h) ? $this->h : ($this->h ? phpthumb_functions::nonempty_min($this->h, $getimagesize[1]) : ''));
                                                                if ($this->w || $this->h) {
                                                                        if ($IMuseExplicitImageOutputDimensions) {
                                                                                if ($this->w && !$this->h) {
                                                                                        $this->h = ceil($this->w / ($this->source_width / $this->source_height));
                                                                                } elseif ($this->h && !$this->w) {
                                                                                        $this->w = ceil($this->h * ($this->source_width / $this->source_height));
                                                                                }
                                                                        }
                                                                        list($nw, $nh) = phpthumb_functions::TranslateWHbyAngle($this->w, $this->h, $this->ra);
                                                                        $nw = ((round($nw) != 0) ? round($nw) : '');
                                                                        $nh = ((round($nh) != 0) ? round($nh) : '');
                                                                        $commandline .= ' -'.$IMresizeParameter.' '.escapeshellarg($nw.'x'.$nh);
                                                                }
                                                        }
                                                }
                                        }

                                } else {

                                        $this->DebugMessage('GetImageSize('.$this->sourceFilename.') failed', __FILE__, __LINE__);
                                        if ($this->w || $this->h) {
                                                $exactDimensionsBang = (($this->iar && (intval($this->w) > 0) && (intval($this->h) > 0)) ? '!' : '');
                                                if ($IMuseExplicitImageOutputDimensions) {
                                                        // unknown source aspect ratio, just put large number and hope IM figures it out
                                                        $commandline .= ' -'.$IMresizeParameter.' '.escapeshellarg(($this->w ? $this->w : '9999').'x'.($this->h ? $this->h : '9999').$exactDimensionsBang);
                                                } else {
                                                        $commandline .= ' -'.$IMresizeParameter.' '.escapeshellarg($this->w.'x'.$this->h.$exactDimensionsBang);
                                                }
                                        }

                                }

                                if ($this->ra) {
                                        $this->ra = intval($this->ra);
                                        if ($this->ImageMagickSwitchAvailable('rotate')) {
                                                if (!preg_match('#('.implode('|', $this->AlphaCapableFormats).')#i', $outputFormat) || phpthumb_functions::version_compare_replacement($this->ImageMagickVersion(), '6.3.7', '>=')) {
                                                        $this->DebugMessage('Using ImageMagick rotate', __FILE__, __LINE__);
                                                        $commandline .= ' -rotate '.escapeshellarg($this->ra);
                                                        if (($this->ra % 90) != 0) {
                                                                if (preg_match('#('.implode('|', $this->AlphaCapableFormats).')#i', $outputFormat)) {
                                                                        // alpha-capable format
                                                                        $commandline .= ' -background rgba(255,255,255,0)';
                                                                } else {
                                                                        $commandline .= ' -background '.escapeshellarg('#'.($this->bg ? $this->bg : 'FFFFFF'));
                                                                }
                                                        }
                                                        $this->ra = 0;
                                                } else {
                                                        $this->DebugMessage('Not using ImageMagick rotate because alpha background buggy before v6.3.7', __FILE__, __LINE__);
                                                }
                                        } else {
                                                $this->DebugMessage('Not using ImageMagick rotate because not supported', __FILE__, __LINE__);
                                        }
                                }

                                $successfullyProcessedFilters = array();
                                foreach ($this->fltr as $filterkey => $filtercommand) {
                                        @list($command, $parameter) = explode('|', $filtercommand, 2);
                                        switch ($command) {
                                                case 'brit':
                                                        if ($this->ImageMagickSwitchAvailable('modulate')) {
                                                                $commandline .= ' -modulate '.escapeshellarg((100 + intval($parameter)).',100,100');
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'cont':
                                                        if ($this->ImageMagickSwitchAvailable('contrast')) {
                                                                $contDiv10 = round(intval($parameter) / 10);
                                                                if ($contDiv10 > 0) {
                                                                        $contDiv10 = min($contDiv10, 100);
                                                                        for ($i = 0; $i < $contDiv10; $i++) {
                                                                                $commandline .= ' -contrast'; // increase contrast by 10%
                                                                        }
                                                                } elseif ($contDiv10 < 0) {
                                                                        $contDiv10 = max($contDiv10, -100);
                                                                        for ($i = $contDiv10; $i < 0; $i++) {
                                                                                $commandline .= ' +contrast'; // decrease contrast by 10%
                                                                        }
                                                                } else {
                                                                        // do nothing
                                                                }
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'ds':
                                                        if ($this->ImageMagickSwitchAvailable(array('colorspace', 'modulate'))) {
                                                                if ($parameter == 100) {
                                                                        $commandline .= ' -colorspace GRAY';
                                                                        $commandline .= ' -modulate 100,0,100';
                                                                } else {
                                                                        $commandline .= ' -modulate '.escapeshellarg('100,'.(100 - intval($parameter)).',100');
                                                                }
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'sat':
                                                        if ($this->ImageMagickSwitchAvailable(array('colorspace', 'modulate'))) {
                                                                if ($parameter == -100) {
                                                                        $commandline .= ' -colorspace GRAY';
                                                                        $commandline .= ' -modulate 100,0,100';
                                                                } else {
                                                                        $commandline .= ' -modulate '.escapeshellarg('100,'.(100 + intval($parameter)).',100');
                                                                }
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'gray':
                                                        if ($this->ImageMagickSwitchAvailable(array('colorspace', 'modulate'))) {
                                                                $commandline .= ' -colorspace GRAY';
                                                                $commandline .= ' -modulate 100,0,100';
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'clr':
                                                        if ($this->ImageMagickSwitchAvailable(array('fill', 'colorize'))) {
                                                                @list($amount, $color) = explode('|', $parameter);
                                                                $commandline .= ' -fill '.escapeshellarg('#'.preg_replace('#[^0-9A-F]#i', '', $color));
                                                                $commandline .= ' -colorize '.escapeshellarg(min(max(intval($amount), 0), 100));
                                                        }
                                                        break;

                                                case 'sep':
                                                        if ($this->ImageMagickSwitchAvailable('sepia-tone')) {
                                                                @list($amount, $color) = explode('|', $parameter);
                                                                $amount = ($amount ? $amount : 80);
                                                                if (!$color) {
                                                                        $commandline .= ' -sepia-tone '.escapeshellarg(min(max(intval($amount), 0), 100).'%');
                                                                        $successfullyProcessedFilters[] = $filterkey;
                                                                }
                                                        }
                                                        break;

                                                case 'gam':
                                                        @list($amount) = explode('|', $parameter);
                                                        $amount = min(max(floatval($amount), 0.001), 10);
                                                        if (number_format($amount, 3) != '1.000') {
                                                                if ($this->ImageMagickSwitchAvailable('gamma')) {
                                                                        $commandline .= ' -gamma '.escapeshellarg($amount);
                                                                        $successfullyProcessedFilters[] = $filterkey;
                                                                }
                                                        }
                                                        break;

                                                case 'neg':
                                                        if ($this->ImageMagickSwitchAvailable('negate')) {
                                                                $commandline .= ' -negate';
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'th':
                                                        @list($amount) = explode('|', $parameter);
                                                        if ($this->ImageMagickSwitchAvailable(array('threshold', 'dither', 'monochrome'))) {
                                                                $commandline .= ' -threshold '.escapeshellarg(round(min(max(intval($amount), 0), 255) / 2.55).'%');
                                                                $commandline .= ' -dither';
                                                                $commandline .= ' -monochrome';
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'rcd':
                                                        if ($this->ImageMagickSwitchAvailable(array('colors', 'dither'))) {
                                                                @list($colors, $dither) = explode('|', $parameter);
                                                                $colors = ($colors                ?  (int) $colors : 256);
                                                                $dither  = ((strlen($dither) > 0) ? (bool) $dither : true);
                                                                $commandline .= ' -colors '.escapeshellarg(max($colors, 8)); // ImageMagick will otherwise fail with "cannot quantize to fewer than 8 colors"
                                                                $commandline .= ($dither ? ' -dither' : ' +dither');
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'flip':
                                                        if ($this->ImageMagickSwitchAvailable(array('flip', 'flop'))) {
                                                                if (strpos(strtolower($parameter), 'x') !== false) {
                                                                        $commandline .= ' -flop';
                                                                }
                                                                if (strpos(strtolower($parameter), 'y') !== false) {
                                                                        $commandline .= ' -flip';
                                                                }
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'edge':
                                                        if ($this->ImageMagickSwitchAvailable('edge')) {
                                                                $parameter = (!empty($parameter) ? $parameter : 2);
                                                                $commandline .= ' -edge '.escapeshellarg(!empty($parameter) ? intval($parameter) : 1);
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'emb':
                                                        if ($this->ImageMagickSwitchAvailable(array('emboss', 'negate'))) {
                                                                $parameter = (!empty($parameter) ? $parameter : 2);
                                                                $commandline .= ' -emboss '.escapeshellarg(intval($parameter));
                                                                if ($parameter < 2) {
                                                                        $commandline .= ' -negate'; // ImageMagick negates the image for some reason with '-emboss 1';
                                                                }
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'lvl':
                                                        @list($band, $method, $threshold) = explode('|', $parameter);
                                                        $band      = ($band ? preg_replace('#[^RGBA\\*]#', '', strtoupper($band))       : '*');
                                                        $method    = ((strlen($method) > 0)    ? intval($method)                        :   2);
                                                        $threshold = ((strlen($threshold) > 0) ? min(max(floatval($threshold), 0), 100) : 0.1);

                                                        $band = preg_replace('#[^RGBA\\*]#', '', strtoupper($band));

                                                        if (($method > 1) && !$this->ImageMagickSwitchAvailable(array('channel', 'contrast-stretch'))) {
                                                                // Because ImageMagick processing happens before PHP-GD filters, and because some
                                                                // clipping is involved in the "lvl" filter, if "lvl" happens before "wb" then the
                                                                // "wb" filter will have (almost) no effect. Therefore, if "wb" is enabled then
                                                                // force the "lvl" filter to be processed by GD, not ImageMagick.
                                                                foreach ($this->fltr as $fltr_key => $fltr_value) {
                                                                        list($fltr_cmd) = explode('|', $fltr_value);
                                                                        if ($fltr_cmd == 'wb') {
                                                                                $this->DebugMessage('Setting "lvl" filter method to "0" (from "'.$method.'") because white-balance filter also enabled', __FILE__, __LINE__);
                                                                                $method = 0;
                                                                        }
                                                                }
                                                        }

                                                        switch ($method) {
                                                                case 0: // internal RGB
                                                                case 1: // internal grayscale
                                                                        break;
                                                                case 2: // ImageMagick "contrast-stretch"
                                                                        if ($this->ImageMagickSwitchAvailable('contrast-stretch')) {
                                                                                if ($band != '*') {
                                                                                        $commandline .= ' -channel '.escapeshellarg(strtoupper($band));
                                                                                }
                                                                                $threshold = preg_replace('#[^0-9\\.]#', '', $threshold); // should be unneccesary, but just to be double-sure
                                                                                //$commandline .= ' -contrast-stretch '.escapeshellarg($threshold.'%');
                                                                                $commandline .= ' -contrast-stretch \''.$threshold.'%\'';
                                                                                if ($band != '*') {
                                                                                        $commandline .= ' +channel';
                                                                                }
                                                                                $successfullyProcessedFilters[] = $filterkey;
                                                                        }
                                                                        break;
                                                                case 3: // ImageMagick "normalize"
                                                                        if ($this->ImageMagickSwitchAvailable('normalize')) {
                                                                                if ($band != '*') {
                                                                                        $commandline .= ' -channel '.escapeshellarg(strtoupper($band));
                                                                                }
                                                                                $commandline .= ' -normalize';
                                                                                if ($band != '*') {
                                                                                        $commandline .= ' +channel';
                                                                                }
                                                                                $successfullyProcessedFilters[] = $filterkey;
                                                                        }
                                                                        break;
                                                                default:
                                                                        $this->DebugMessage('unsupported method ('.$method.') for "lvl" filter', __FILE__, __LINE__);
                                                                        break;
                                                        }
                                                        if (isset($this->fltr[$filterkey]) && ($method > 1)) {
                                                                $this->fltr[$filterkey] = $command.'|'.$band.'|0|'.$threshold;
                                                                $this->DebugMessage('filter "lvl" remapped from method "'.$method.'" to method "0" because ImageMagick support is missing', __FILE__, __LINE__);
                                                        }
                                                        break;

                                                case 'wb':
                                                        if ($this->ImageMagickSwitchAvailable(array('channel', 'contrast-stretch'))) {
                                                                @list($threshold) = explode('|', $parameter);
                                                                $threshold = (!empty($threshold) ? min(max(floatval($threshold), 0), 100) : 0.1);
                                                                $threshold = preg_replace('#[^0-9\\.]#', '', $threshold); // should be unneccesary, but just to be double-sure
                                                                //$commandline .= ' -channel R -contrast-stretch '.escapeshellarg($threshold.'%'); // doesn't work on Windows because most versions of PHP do not properly
                                                                //$commandline .= ' -channel G -contrast-stretch '.escapeshellarg($threshold.'%'); // escape special characters (such as %) and just replace them with spaces
                                                                //$commandline .= ' -channel B -contrast-stretch '.escapeshellarg($threshold.'%'); // https://bugs.php.net/bug.php?id=43261
                                                                $commandline .= ' -channel R -contrast-stretch \''.$threshold.'%\'';
                                                                $commandline .= ' -channel G -contrast-stretch \''.$threshold.'%\'';
                                                                $commandline .= ' -channel B -contrast-stretch \''.$threshold.'%\'';
                                                                $commandline .= ' +channel';
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'blur':
                                                        if ($this->ImageMagickSwitchAvailable('blur')) {
                                                                @list($radius) = explode('|', $parameter);
                                                                $radius = (!empty($radius) ? min(max(intval($radius), 0), 25) : 1);
                                                                $commandline .= ' -blur '.escapeshellarg($radius);
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'gblr':
                                                        @list($radius) = explode('|', $parameter);
                                                        $radius = (!empty($radius) ? min(max(intval($radius), 0), 25) : 1);
                                                        // "-gaussian" changed to "-gaussian-blur" sometime around 2009
                                                        if ($this->ImageMagickSwitchAvailable('gaussian-blur')) {
                                                                $commandline .= ' -gaussian-blur '.escapeshellarg($radius);
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        } elseif ($this->ImageMagickSwitchAvailable('gaussian')) {
                                                                $commandline .= ' -gaussian '.escapeshellarg($radius);
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'usm':
                                                        if ($this->ImageMagickSwitchAvailable('unsharp')) {
                                                                @list($amount, $radius, $threshold) = explode('|', $parameter);
                                                                $amount    = ($amount            ? min(max(intval($radius), 0), 255) : 80);
                                                                $radius    = ($radius            ? min(max(intval($radius), 0), 10)  : 0.5);
                                                                $threshold = (strlen($threshold) ? min(max(intval($radius), 0), 50)  : 3);
                                                                $commandline .= ' -unsharp '.escapeshellarg(number_format(($radius * 2) - 1, 2, '.', '').'x1+'.number_format($amount / 100, 2, '.', '').'+'.number_format($threshold / 100, 2, '.', ''));
                                                                $successfullyProcessedFilters[] = $filterkey;
                                                        }
                                                        break;

                                                case 'bord':
                                                        if ($this->ImageMagickSwitchAvailable(array('border', 'bordercolor', 'thumbnail', 'crop'))) {
                                                                if (!$this->zc) {
                                                                        @list($width, $rX, $rY, $color) = explode('|', $parameter);
                                                                        $width = intval($width);
                                                                        $rX    = intval($rX);
                                                                        $rY    = intval($rY);
                                                                        if ($width && !$rX && !$rY) {
                                                                                if (!phpthumb_functions::IsHexColor($color)) {
                                                                                        $color = ((!empty($this->bc) && phpthumb_functions::IsHexColor($this->bc)) ? $this->bc : '000000');
                                                                                }
                                                                                $commandline .= ' -border '.escapeshellarg(intval($width));
                                                                                $commandline .= ' -bordercolor '.escapeshellarg('#'.$color);

                                                                                if (preg_match('# \\-crop "([0-9]+)x([0-9]+)\\+0\\+0" #', $commandline, $matches)) {
                                                                                        $commandline = str_replace(' -crop "'.$matches[1].'x'.$matches[2].'+0+0" ', ' -crop '.escapeshellarg(($matches[1] - (2 * $width)).'x'.($matches[2] - (2 * $width)).'+0+0').' ', $commandline);
                                                                                } elseif (preg_match('# \\-'.$IMresizeParameter.' "([0-9]+)x([0-9]+)" #', $commandline, $matches)) {
                                                                                        $commandline = str_replace(' -'.$IMresizeParameter.' "'.$matches[1].'x'.$matches[2].'" ', ' -'.$IMresizeParameter.' '.escapeshellarg(($matches[1] - (2 * $width)).'x'.($matches[2] - (2 * $width))).' ', $commandline);
                                                                                }
                                                                                $successfullyProcessedFilters[] = $filterkey;
                                                                        }
                                                                }
                                                        }
                                                        break;

                                                case 'crop':
                                                        break;

                                                case 'sblr':
                                                        break;

                                                case 'mean':
                                                        break;

                                                case 'smth':
                                                        break;

                                                case 'bvl':
                                                        break;

                                                case 'wmi':
                                                        break;

                                                case 'wmt':
                                                        break;

                                                case 'over':
                                                        break;

                                                case 'hist':
                                                        break;

                                                case 'fram':
                                                        break;

                                                case 'drop':
                                                        break;

                                                case 'mask':
                                                        break;

                                                case 'elip':
                                                        break;

                                                case 'ric':
                                                        break;

                                                case 'stc':
                                                        break;

                                                case 'size':
                                                        break;

                                                default:
                                                        $this->DebugMessage('Unknown $this->fltr['.$filterkey.'] ('.$filtercommand.') -- deleting filter command', __FILE__, __LINE__);
                                                        $successfullyProcessedFilters[] = $filterkey;
                                                        break;
                                        }
                                        if (!isset($this->fltr[$filterkey])) {
                                                $this->DebugMessage('Processed $this->fltr['.$filterkey.'] ('.$filtercommand.') with ImageMagick', __FILE__, __LINE__);
                                        } else {
                                                $this->DebugMessage('Skipping $this->fltr['.$filterkey.'] ('.$filtercommand.') with ImageMagick', __FILE__, __LINE__);
                                        }
                                }
                                $this->DebugMessage('Remaining $this->fltr after ImageMagick: ('.$this->phpThumbDebugVarDump($this->fltr).')', __FILE__, __LINE__);
                                if (count($this->fltr) > 0) {
                                        $this->useRawIMoutput = false;
                                }

                                if (preg_match('#jpe?g#i', $outputFormat) && $this->q) {
                                        if ($this->ImageMagickSwitchAvailable(array('quality', 'interlace'))) {
                                                $commandline .= ' -quality '.escapeshellarg($this->thumbnailQuality);
                                                if ($this->config_output_interlace) {
                                                        // causes weird things with animated GIF... leave for JPEG only
                                                        $commandline .= ' -interlace line '; // Use Line or Plane to create an interlaced PNG or GIF or progressive JPEG image
                                                }
                                        }
                                }
                                $commandline .= ' '.escapeshellarg(preg_replace('#[/\\\\]#', DIRECTORY_SEPARATOR, $this->sourceFilename).(($outputFormat == 'gif') ? '' : '['.intval($this->sfn).']')); // [0] means first frame of (GIF) animation, can be ignored
                                $commandline .= ' '.$outputFormat.':'.escapeshellarg($IMtempfilename);
                                if (!$this->iswindows) {
                                        $commandline .= ' 2>&1';
                                }
                                $this->DebugMessage('ImageMagick called as ('.$commandline.')', __FILE__, __LINE__);
                                $IMresult = phpthumb_functions::SafeExec($commandline);
                                clearstatcache();
                                if (!@file_exists($IMtempfilename) || !@filesize($IMtempfilename)) {
                                        $this->FatalError('ImageMagick failed with message ('.trim($IMresult).')');
                                        $this->DebugMessage('ImageMagick failed with message ('.trim($IMresult).')', __FILE__, __LINE__);
                                        if ($this->iswindows && !$IMresult) {
                                                $this->DebugMessage('Check to make sure that PHP has read+write permissions to "'.dirname($IMtempfilename).'"', __FILE__, __LINE__);
                                        }

                                } else {

                                        foreach ($successfullyProcessedFilters as $dummy => $filterkey) {
                                                unset($this->fltr[$filterkey]);
                                        }
                                        $this->IMresizedData = file_get_contents($IMtempfilename);
                                        $getimagesize_imresized = @GetImageSize($IMtempfilename);
                                        $this->DebugMessage('GetImageSize('.$IMtempfilename.') returned [w='.$getimagesize_imresized[0].';h='.$getimagesize_imresized[1].';f='.$getimagesize_imresized[2].']', __FILE__, __LINE__);
                                        if (($this->config_max_source_pixels > 0) && (($getimagesize_imresized[0] * $getimagesize_imresized[1]) > $this->config_max_source_pixels)) {
                                                $this->DebugMessage('skipping ImageMagickThumbnailToGD::'.$ImageCreateFunction.'() because IM output is too large ('.$getimagesize_imresized[0].'x'.$getimagesize_imresized[0].' = '.($getimagesize_imresized[0] * $getimagesize_imresized[1]).' > '.$this->config_max_source_pixels.')', __FILE__, __LINE__);
                                        } elseif (function_exists(@$ImageCreateFunction) && ($this->gdimg_source = @$ImageCreateFunction($IMtempfilename))) {
                                                $this->source_width  = ImageSX($this->gdimg_source);
                                                $this->source_height = ImageSY($this->gdimg_source);
                                                $this->DebugMessage('ImageMagickThumbnailToGD::'.$ImageCreateFunction.'() succeeded, $this->gdimg_source is now ('.$this->source_width.'x'.$this->source_height.')', __FILE__, __LINE__);
                                                $this->DebugMessage('ImageMagickThumbnailToGD() returning $this->IMresizedData ('.strlen($this->IMresizedData).' bytes)', __FILE__, __LINE__);
                                        } else {
                                                $this->useRawIMoutput = true;
                                                $this->DebugMessage('$this->useRawIMoutput set to TRUE because '.@$ImageCreateFunction.'('.$IMtempfilename.') failed', __FILE__, __LINE__);
                                        }
                                        return true;

                                }
                                if (file_exists($IMtempfilename)) {
                                        $this->DebugMessage('deleting "'.$IMtempfilename.'"', __FILE__, __LINE__);
                                        @unlink($IMtempfilename);
                                }

                        } elseif ($this->issafemode) {
                                $this->DebugMessage('ImageMagickThumbnailToGD() aborting because PHP safe_mode is enabled and phpThumb_tempnam() failed', __FILE__, __LINE__);
                                $this->useRawIMoutput = false;
                        } else {
                                if (file_exists($IMtempfilename)) {
                                        $this->DebugMessage('deleting "'.$IMtempfilename.'"', __FILE__, __LINE__);
                                        @unlink($IMtempfilename);
                                }
                                $this->DebugMessage('ImageMagickThumbnailToGD() aborting, phpThumb_tempnam() failed', __FILE__, __LINE__);
                        }
                } else {
                        $this->DebugMessage('ImageMagickThumbnailToGD() aborting because ImageMagickCommandlineBase() failed', __FILE__, __LINE__);
                }
                $this->useRawIMoutput = false;
                return false;
        }


        function Rotate() {
                if ($this->ra || $this->ar) {
                        if (!function_exists('ImageRotate')) {
                                $this->DebugMessage('!function_exists(ImageRotate)', __FILE__, __LINE__);
                                return false;
                        }
                        if (!include_once(dirname(__FILE__).'/phpthumb.filters.php')) {
                                $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.filters.php" which is required for applying filters ('.implode(';', $this->fltr).')', __FILE__, __LINE__);
                                return false;
                        }

                        $this->config_background_hexcolor = ($this->bg ? $this->bg : $this->config_background_hexcolor);
                        if (!phpthumb_functions::IsHexColor($this->config_background_hexcolor)) {
                                return $this->ErrorImage('Invalid hex color string "'.$this->config_background_hexcolor.'" for parameter "bg"');
                        }

                        $rotate_angle = 0;
                        if ($this->ra) {

                                $rotate_angle = floatval($this->ra);

                        } else {

                                if ($this->ar == 'x') {
                                        if (phpthumb_functions::version_compare_replacement(phpversion(), '4.2.0', '>=')) {
                                                if ($this->sourceFilename) {
                                                        if (function_exists('exif_read_data')) {
                                                                if ($exif_data = @exif_read_data($this->sourceFilename, 'IFD0')) {
                                                                        // http://sylvana.net/jpegcrop/exif_orientation.html
                                                                        switch (@$exif_data['Orientation']) {
                                                                                case 1:
                                                                                        $rotate_angle = 0;
                                                                                        break;
                                                                                case 3:
                                                                                        $rotate_angle = 180;
                                                                                        break;
                                                                                case 6:
                                                                                        $rotate_angle = 270;
                                                                                        break;
                                                                                case 8:
                                                                                        $rotate_angle = 90;
                                                                                        break;

                                                                                default:
                                                                                        $this->DebugMessage('EXIF auto-rotate failed because unknown $exif_data[Orientation] "'.@$exif_data['Orientation'].'"', __FILE__, __LINE__);
                                                                                        return false;
                                                                                        break;
                                                                        }
                                                                        $this->DebugMessage('EXIF auto-rotate set to '.$rotate_angle.' degrees ($exif_data[Orientation] = "'.@$exif_data['Orientation'].'")', __FILE__, __LINE__);
                                                                } else {
                                                                        $this->DebugMessage('failed: exif_read_data('.$this->sourceFilename.')', __FILE__, __LINE__);
                                                                        return false;
                                                                }
                                                        } else {
                                                                $this->DebugMessage('!function_exists(exif_read_data)', __FILE__, __LINE__);
                                                                return false;
                                                        }
                                                } else {
                                                        $this->DebugMessage('Cannot auto-rotate from EXIF data because $this->sourceFilename is empty', __FILE__, __LINE__);
                                                        return false;
                                                }
                                        } else {
                                                $this->DebugMessage('Cannot auto-rotate from EXIF data because PHP is less than v4.2.0 ('.phpversion().')', __FILE__, __LINE__);
                                                return false;
                                        }
                                } elseif (($this->ar == 'l') && ($this->source_height > $this->source_width)) {
                                        $rotate_angle = 270;
                                } elseif (($this->ar == 'L') && ($this->source_height > $this->source_width)) {
                                        $rotate_angle = 90;
                                } elseif (($this->ar == 'p') && ($this->source_width > $this->source_height)) {
                                        $rotate_angle = 90;
                                } elseif (($this->ar == 'P') && ($this->source_width > $this->source_height)) {
                                        $rotate_angle = 270;
                                }

                        }
                        if ($rotate_angle % 90) {
                                $this->is_alpha = true;
                        }
                        phpthumb_filters::ImprovedImageRotate($this->gdimg_source, $rotate_angle, $this->config_background_hexcolor, $this->bg);
                        $this->source_width  = ImageSX($this->gdimg_source);
                        $this->source_height = ImageSY($this->gdimg_source);
                }
                return true;
        }


        function FixedAspectRatio() {
                // optional fixed-dimension images (regardless of aspect ratio)

                if (!$this->far) {
                        // do nothing
                        return true;
                }

                if (!$this->w || !$this->h) {
                        return false;
                }
                $this->thumbnail_width  = $this->w;
                $this->thumbnail_height = $this->h;
                $this->is_alpha = true;
                if ($this->thumbnail_image_width >= $this->thumbnail_width) {

                        if ($this->w) {
                                $aspectratio = $this->thumbnail_image_height / $this->thumbnail_image_width;
                                $this->thumbnail_image_height = round($this->thumbnail_image_width * $aspectratio);
                                $this->thumbnail_height = ($this->h ? $this->h : $this->thumbnail_image_height);
                        } elseif ($this->thumbnail_image_height < $this->thumbnail_height) {
                                $this->thumbnail_image_height = $this->thumbnail_height;
                                $this->thumbnail_image_width  = round($this->thumbnail_image_height / $aspectratio);
                        }

                } else {
                        if ($this->h) {
                                $aspectratio = $this->thumbnail_image_width / $this->thumbnail_image_height;
                                $this->thumbnail_image_width = round($this->thumbnail_image_height * $aspectratio);
                        } elseif ($this->thumbnail_image_width < $this->thumbnail_width) {
                                $this->thumbnail_image_width = $this->thumbnail_width;
                                $this->thumbnail_image_height  = round($this->thumbnail_image_width / $aspectratio);
                        }

                }
                return true;
        }


        function OffsiteDomainIsAllowed($hostname, $allowed_domains) {
                static $domain_is_allowed = array();
                $hostname = strtolower($hostname);
                if (!isset($domain_is_allowed[$hostname])) {
                        $domain_is_allowed[$hostname] = false;
                        foreach ($allowed_domains as $valid_domain) {
                                $starpos = strpos($valid_domain, '*');
                                if ($starpos !== false) {
                                        $valid_domain = substr($valid_domain, $starpos + 1);
                                        if (preg_match('#'.preg_quote($valid_domain).'$#', $hostname)) {
                                                $domain_is_allowed[$hostname] = true;
                                                break;
                                        }
                                } else {
                                        if (strtolower($valid_domain) === $hostname) {
                                                $domain_is_allowed[$hostname] = true;
                                                break;
                                        }
                                }
                        }
                }
                return $domain_is_allowed[$hostname];
        }


        function AntiOffsiteLinking() {
                // Optional anti-offsite hijacking of the thumbnail script
                $allow = true;
                if ($allow && $this->config_nooffsitelink_enabled && (@$_SERVER['HTTP_REFERER'] || $this->config_nooffsitelink_require_refer)) {
                        $this->DebugMessage('AntiOffsiteLinking() checking $_SERVER[HTTP_REFERER] "'.@$_SERVER['HTTP_REFERER'].'"', __FILE__, __LINE__);
                        foreach ($this->config_nooffsitelink_valid_domains as $key => $valid_domain) {
                                // $_SERVER['HTTP_HOST'] contains the port number, so strip it out here to make default configuration work
                                list($clean_domain) = explode(':', $valid_domain);
                                $this->config_nooffsitelink_valid_domains[$key] = $clean_domain;
                        }
                        $parsed_url = phpthumb_functions::ParseURLbetter(@$_SERVER['HTTP_REFERER']);
                        if (!$this->OffsiteDomainIsAllowed(@$parsed_url['host'], $this->config_nooffsitelink_valid_domains)) {
                                $allow = false;
                                $erase   = $this->config_nooffsitelink_erase_image;
                                $message = $this->config_nooffsitelink_text_message;
$this->ErrorImage('AntiOffsiteLinking() - "'.@$parsed_url['host'].'" is NOT in $this->config_nooffsitelink_valid_domains ('.implode(';', $this->config_nooffsitelink_valid_domains).')');
exit;
                                $this->DebugMessage('AntiOffsiteLinking() - "'.@$parsed_url['host'].'" is NOT in $this->config_nooffsitelink_valid_domains ('.implode(';', $this->config_nooffsitelink_valid_domains).')', __FILE__, __LINE__);
                        } else {
                                $this->DebugMessage('AntiOffsiteLinking() - "'.@$parsed_url['host'].'" is in $this->config_nooffsitelink_valid_domains ('.implode(';', $this->config_nooffsitelink_valid_domains).')', __FILE__, __LINE__);
                        }
                }

                if ($allow && $this->config_nohotlink_enabled && preg_match('#^(f|ht)tps?\://#i', $this->src)) {
                        $parsed_url = phpthumb_functions::ParseURLbetter($this->src);
                        //if (!phpthumb_functions::CaseInsensitiveInArray(@$parsed_url['host'], $this->config_nohotlink_valid_domains)) {
                        if ($this->OffsiteDomainIsAllowed(@$parsed_url['host'], $this->config_nohotlink_valid_domains)) {
                                // This domain is not allowed
                                $allow = false;
                                $erase   = $this->config_nohotlink_erase_image;
                                $message = $this->config_nohotlink_text_message;
                                $this->DebugMessage('AntiOffsiteLinking() - "'.$parsed_url['host'].'" is NOT in $this->config_nohotlink_valid_domains ('.implode(';', $this->config_nohotlink_valid_domains).')', __FILE__, __LINE__);
                        } else {
                                $this->DebugMessage('AntiOffsiteLinking() - "'.$parsed_url['host'].'" is in $this->config_nohotlink_valid_domains ('.implode(';', $this->config_nohotlink_valid_domains).')', __FILE__, __LINE__);
                        }
                }

                if ($allow) {
                        $this->DebugMessage('AntiOffsiteLinking() says this is allowed', __FILE__, __LINE__);
                        return true;
                }

                if (!phpthumb_functions::IsHexColor($this->config_error_bgcolor)) {
                        return $this->ErrorImage('Invalid hex color string "'.$this->config_error_bgcolor.'" for $this->config_error_bgcolor');
                }
                if (!phpthumb_functions::IsHexColor($this->config_error_textcolor)) {
                        return $this->ErrorImage('Invalid hex color string "'.$this->config_error_textcolor.'" for $this->config_error_textcolor');
                }
                if ($erase) {

                        return $this->ErrorImage($message, $this->thumbnail_width, $this->thumbnail_height, $this->config_error_bgcolor, $this->config_error_textcolor, $this->config_error_fontsize);

                } else {

                        $this->config_nooffsitelink_watermark_src = $this->ResolveFilenameToAbsolute($this->config_nooffsitelink_watermark_src);
                        if (is_file($this->config_nooffsitelink_watermark_src)) {

                                if (!include_once(dirname(__FILE__).'/phpthumb.filters.php')) {
                                        $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.filters.php" which is required for applying watermark', __FILE__, __LINE__);
                                        return false;
                                }
                                $watermark_img = $this->ImageCreateFromStringReplacement(file_get_contents($this->config_nooffsitelink_watermark_src));
                                $phpthumbFilters = new phpthumb_filters();
                                $phpthumbFilters->phpThumbObject = &$this;
                                $opacity = 50;
                                $margin  = 5;
                                $phpthumbFilters->WatermarkOverlay($this->gdimg_output, $watermark_img, '*', $opacity, $margin);
                                ImageDestroy($watermark_img);
                                unset($phpthumbFilters);

                        } else {

                                $nohotlink_text_array = explode("\n", wordwrap($message, floor($this->thumbnail_width / ImageFontWidth($this->config_error_fontsize)), "\n"));
                                $nohotlink_text_color = phpthumb_functions::ImageHexColorAllocate($this->gdimg_output, $this->config_error_textcolor);

                                $topoffset = round(($this->thumbnail_height - (count($nohotlink_text_array) * ImageFontHeight($this->config_error_fontsize))) / 2);

                                $rowcounter = 0;
                                $this->DebugMessage('AntiOffsiteLinking() writing '.count($nohotlink_text_array).' lines of text "'.$message.'" (in #'.$this->config_error_textcolor.') on top of image', __FILE__, __LINE__);
                                foreach ($nohotlink_text_array as $textline) {
                                        $leftoffset = max(0, round(($this->thumbnail_width - (strlen($textline) * ImageFontWidth($this->config_error_fontsize))) / 2));
                                        ImageString($this->gdimg_output, $this->config_error_fontsize, $leftoffset, $topoffset + ($rowcounter++ * ImageFontHeight($this->config_error_fontsize)), $textline, $nohotlink_text_color);
                                }

                        }

                }
                return true;
        }


        function AlphaChannelFlatten() {
                if (!$this->is_alpha) {
                        // image doesn't have alpha transparency, no need to flatten
                        $this->DebugMessage('skipping AlphaChannelFlatten() because !$this->is_alpha', __FILE__, __LINE__);
                        return false;
                }
                switch ($this->thumbnailFormat) {
                        case 'png':
                        case 'ico':
                                // image has alpha transparency, but output as PNG or ICO which can handle it
                                $this->DebugMessage('skipping AlphaChannelFlatten() because ($this->thumbnailFormat == "'.$this->thumbnailFormat.'")', __FILE__, __LINE__);
                                return false;
                                break;

                        case 'gif':
                                // image has alpha transparency, but output as GIF which can handle only single-color transparency
                                $CurrentImageColorTransparent = ImageColorTransparent($this->gdimg_output);
                                if ($CurrentImageColorTransparent == -1) {
                                        // no transparent color defined

                                        if (phpthumb_functions::gd_version() < 2.0) {
                                                $this->DebugMessage('AlphaChannelFlatten() failed because GD version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                return false;
                                        }

                                        if ($img_alpha_mixdown_dither = @ImageCreateTrueColor(ImageSX($this->gdimg_output), ImageSY($this->gdimg_output))) {

                                                for ($i = 0; $i <= 255; $i++) {
                                                        $dither_color[$i] = ImageColorAllocate($img_alpha_mixdown_dither, $i, $i, $i);
                                                }

                                                // scan through current truecolor image copy alpha channel to temp image as grayscale
                                                for ($x = 0; $x < $this->thumbnail_width; $x++) {
                                                        for ($y = 0; $y < $this->thumbnail_height; $y++) {
                                                                $PixelColor = phpthumb_functions::GetPixelColor($this->gdimg_output, $x, $y);
                                                                ImageSetPixel($img_alpha_mixdown_dither, $x, $y, $dither_color[($PixelColor['alpha'] * 2)]);
                                                        }
                                                }

                                                // dither alpha channel grayscale version down to 2 colors
                                                ImageTrueColorToPalette($img_alpha_mixdown_dither, true, 2);

                                                // reduce color palette to 256-1 colors (leave one palette position for transparent color)
                                                ImageTrueColorToPalette($this->gdimg_output, true, 255);

                                                // allocate a new color for transparent color index
                                                $TransparentColor = ImageColorAllocate($this->gdimg_output, 1, 254, 253);
                                                ImageColorTransparent($this->gdimg_output, $TransparentColor);

                                                // scan through alpha channel image and note pixels with >50% transparency
                                                $TransparentPixels = array();
                                                for ($x = 0; $x < $this->thumbnail_width; $x++) {
                                                        for ($y = 0; $y < $this->thumbnail_height; $y++) {
                                                                $AlphaChannelPixel = phpthumb_functions::GetPixelColor($img_alpha_mixdown_dither, $x, $y);
                                                                if ($AlphaChannelPixel['red'] > 127) {
                                                                        ImageSetPixel($this->gdimg_output, $x, $y, $TransparentColor);
                                                                }
                                                        }
                                                }
                                                ImageDestroy($img_alpha_mixdown_dither);

                                                $this->DebugMessage('AlphaChannelFlatten() set image to 255+1 colors with transparency for GIF output', __FILE__, __LINE__);
                                                return true;

                                        } else {
                                                $this->DebugMessage('AlphaChannelFlatten() failed ImageCreate('.ImageSX($this->gdimg_output).', '.ImageSY($this->gdimg_output).')', __FILE__, __LINE__);
                                                return false;
                                        }

                                } else {
                                        // a single transparent color already defined, leave as-is
                                        $this->DebugMessage('skipping AlphaChannelFlatten() because ($this->thumbnailFormat == "'.$this->thumbnailFormat.'") and ImageColorTransparent returned "'.$CurrentImageColorTransparent.'"', __FILE__, __LINE__);
                                        return true;
                                }
                                break;
                }
                $this->DebugMessage('continuing AlphaChannelFlatten() for output format "'.$this->thumbnailFormat.'"', __FILE__, __LINE__);
                // image has alpha transparency, and is being output in a format that doesn't support it -- flatten
                if ($gdimg_flatten_temp = phpthumb_functions::ImageCreateFunction($this->thumbnail_width, $this->thumbnail_height)) {

                        $this->config_background_hexcolor = ($this->bg ? $this->bg : $this->config_background_hexcolor);
                        if (!phpthumb_functions::IsHexColor($this->config_background_hexcolor)) {
                                return $this->ErrorImage('Invalid hex color string "'.$this->config_background_hexcolor.'" for parameter "bg"');
                        }
                        $background_color = phpthumb_functions::ImageHexColorAllocate($this->gdimg_output, $this->config_background_hexcolor);
                        ImageFilledRectangle($gdimg_flatten_temp, 0, 0, $this->thumbnail_width, $this->thumbnail_height, $background_color);
                        ImageCopy($gdimg_flatten_temp, $this->gdimg_output, 0, 0, 0, 0, $this->thumbnail_width, $this->thumbnail_height);

                        ImageAlphaBlending($this->gdimg_output, true);
                        ImageSaveAlpha($this->gdimg_output, false);
                        ImageColorTransparent($this->gdimg_output, -1);
                        ImageCopy($this->gdimg_output, $gdimg_flatten_temp, 0, 0, 0, 0, $this->thumbnail_width, $this->thumbnail_height);

                        ImageDestroy($gdimg_flatten_temp);
                        return true;

                } else {
                        $this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__);
                }
                return false;
        }


        function ApplyFilters() {
                if ($this->fltr && is_array($this->fltr)) {
                        if (!include_once(dirname(__FILE__).'/phpthumb.filters.php')) {
                                $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.filters.php" which is required for applying filters ('.implode(';', $this->fltr).')', __FILE__, __LINE__);
                                return false;
                        }
                        $phpthumbFilters = new phpthumb_filters();
                        $phpthumbFilters->phpThumbObject = &$this;
                        foreach ($this->fltr as $filtercommand) {
                                @list($command, $parameter) = explode('|', $filtercommand, 2);
                                $this->DebugMessage('Attempting to process filter command "'.$command.'('.$parameter.')"', __FILE__, __LINE__);
                                switch ($command) {
                                        case 'brit': // Brightness
                                                $phpthumbFilters->Brightness($this->gdimg_output, $parameter);
                                                break;

                                        case 'cont': // Contrast
                                                $phpthumbFilters->Contrast($this->gdimg_output, $parameter);
                                                break;

                                        case 'ds': // Desaturation
                                                $phpthumbFilters->Desaturate($this->gdimg_output, $parameter, '');
                                                break;

                                        case 'sat': // Saturation
                                                $phpthumbFilters->Saturation($this->gdimg_output, $parameter, '');
                                                break;

                                        case 'gray': // Grayscale
                                                $phpthumbFilters->Grayscale($this->gdimg_output);
                                                break;

                                        case 'clr': // Colorize
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping Colorize() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        break;
                                                }
                                                @list($amount, $color) = explode('|', $parameter, 2);
                                                $phpthumbFilters->Colorize($this->gdimg_output, $amount, $color);
                                                break;

                                        case 'sep': // Sepia
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping Sepia() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        break;
                                                }
                                                @list($amount, $color) = explode('|', $parameter, 2);
                                                $phpthumbFilters->Sepia($this->gdimg_output, $amount, $color);
                                                break;

                                        case 'gam': // Gamma correction
                                                $phpthumbFilters->Gamma($this->gdimg_output, $parameter);
                                                break;

                                        case 'neg': // Negative colors
                                                $phpthumbFilters->Negative($this->gdimg_output);
                                                break;

                                        case 'th': // Threshold
                                                $phpthumbFilters->Threshold($this->gdimg_output, $parameter);
                                                break;

                                        case 'rcd': // ReduceColorDepth
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping ReduceColorDepth() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        break;
                                                }
                                                @list($colors, $dither) = explode('|', $parameter, 2);
                                                $colors = ($colors                ?  (int) $colors : 256);
                                                $dither  = ((strlen($dither) > 0) ? (bool) $dither : true);
                                                $phpthumbFilters->ReduceColorDepth($this->gdimg_output, $colors, $dither);
                                                break;

                                        case 'flip': // Flip
                                                $phpthumbFilters->Flip($this->gdimg_output, (strpos(strtolower($parameter), 'x') !== false), (strpos(strtolower($parameter), 'y') !== false));
                                                break;

                                        case 'edge': // EdgeDetect
                                                $phpthumbFilters->EdgeDetect($this->gdimg_output);
                                                break;

                                        case 'emb': // Emboss
                                                $phpthumbFilters->Emboss($this->gdimg_output);
                                                break;

                                        case 'bvl': // Bevel
                                                @list($width, $color1, $color2) = explode('|', $parameter, 3);
                                                $phpthumbFilters->Bevel($this->gdimg_output, $width, $color1, $color2);
                                                break;

                                        case 'lvl': // autoLevels
                                                @list($band, $method, $threshold) = explode('|', $parameter, 3);
                                                $band      = ($band ? preg_replace('#[^RGBA\\*]#', '', strtoupper($band)) : '*');
                                                $method    = ((strlen($method) > 0)    ? intval($method)                  :   2);
                                                $threshold = ((strlen($threshold) > 0) ? floatval($threshold)             : 0.1);

                                                $phpthumbFilters->HistogramStretch($this->gdimg_output, $band, $method, $threshold);
                                                break;

                                        case 'wb': // WhiteBalance
                                                $phpthumbFilters->WhiteBalance($this->gdimg_output, $parameter);
                                                break;

                                        case 'hist': // Histogram overlay
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping HistogramOverlay() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        break;
                                                }
                                                @list($bands, $colors, $width, $height, $alignment, $opacity, $margin_x, $margin_y) = explode('|', $parameter, 8);
                                                $bands     = ($bands     ? $bands     :  '*');
                                                $colors    = ($colors    ? $colors    :   '');
                                                $width     = ($width     ? $width     : 0.25);
                                                $height    = ($height    ? $height    : 0.25);
                                                $alignment = ($alignment ? $alignment : 'BR');
                                                $opacity   = ($opacity   ? $opacity   :   50);
                                                $margin_x  = ($margin_x  ? $margin_x  :    5);
                                                $margin_y  = $margin_y; // just to note it wasn't forgotten, but let the value always pass unchanged
                                                $phpthumbFilters->HistogramOverlay($this->gdimg_output, $bands, $colors, $width, $height, $alignment, $opacity, $margin_x, $margin_y);
                                                break;

                                        case 'fram': // Frame
                                                @list($frame_width, $edge_width, $color_frame, $color1, $color2) = explode('|', $parameter, 5);
                                                $phpthumbFilters->Frame($this->gdimg_output, $frame_width, $edge_width, $color_frame, $color1, $color2);
                                                break;

                                        case 'drop': // DropShadow
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping DropShadow() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                $this->is_alpha = true;
                                                @list($distance, $width, $color, $angle, $fade) = explode('|', $parameter, 5);
                                                $phpthumbFilters->DropShadow($this->gdimg_output, $distance, $width, $color, $angle, $fade);
                                                break;

                                        case 'mask': // Mask cropping
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping Mask() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                $mask_filename = $this->ResolveFilenameToAbsolute($parameter);
                                                if (@is_readable($mask_filename) && ($fp_mask = @fopen($mask_filename, 'rb'))) {
                                                        $MaskImageData = '';
                                                        do {
                                                                $buffer = fread($fp_mask, 8192);
                                                                $MaskImageData .= $buffer;
                                                        } while (strlen($buffer) > 0);
                                                        fclose($fp_mask);
                                                        if ($gdimg_mask = $this->ImageCreateFromStringReplacement($MaskImageData)) {
                                                                $this->is_alpha = true;
                                                                $phpthumbFilters->ApplyMask($gdimg_mask, $this->gdimg_output);
                                                                ImageDestroy($gdimg_mask);
                                                        } else {
                                                                $this->DebugMessage('ImageCreateFromStringReplacement() failed for "'.$mask_filename.'"', __FILE__, __LINE__);
                                                        }
                                                } else {
                                                        $this->DebugMessage('Cannot open mask file "'.$mask_filename.'"', __FILE__, __LINE__);
                                                }
                                                break;

                                        case 'elip': // Elipse cropping
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping Elipse() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                $this->is_alpha = true;
                                                $phpthumbFilters->Elipse($this->gdimg_output);
                                                break;

                                        case 'ric': // RoundedImageCorners
                                                if (phpthumb_functions::gd_version() < 2) {
                                                        $this->DebugMessage('Skipping RoundedImageCorners() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                @list($radius_x, $radius_y) = explode('|', $parameter, 2);
                                                if (($radius_x < 1) || ($radius_y < 1)) {
                                                        $this->DebugMessage('Skipping RoundedImageCorners('.$radius_x.', '.$radius_y.') because x/y radius is less than 1', __FILE__, __LINE__);
                                                        break;
                                                }
                                                $this->is_alpha = true;
                                                $phpthumbFilters->RoundedImageCorners($this->gdimg_output, $radius_x, $radius_y);
                                                break;

                                        case 'crop': // Crop
                                                @list($left, $right, $top, $bottom) = explode('|', $parameter, 4);
                                                $phpthumbFilters->Crop($this->gdimg_output, $left, $right, $top, $bottom);
                                                break;

                                        case 'bord': // Border
                                                @list($border_width, $radius_x, $radius_y, $hexcolor_border) = explode('|', $parameter, 4);
                                                $this->is_alpha = true;
                                                $phpthumbFilters->ImageBorder($this->gdimg_output, $border_width, $radius_x, $radius_y, $hexcolor_border);
                                                break;

                                        case 'over': // Overlay
                                                @list($filename, $underlay, $margin, $opacity) = explode('|', $parameter, 4);
                                                $underlay = (bool) ($underlay              ? $underlay : false);
                                                $margin   =        ((strlen($margin)  > 0) ? $margin   : ($underlay ? 0.1 : 0.0));
                                                $opacity  =        ((strlen($opacity) > 0) ? $opacity  : 100);
                                                if (($margin > 0) && ($margin < 1)) {
                                                        $margin = min(0.499, $margin);
                                                } elseif (($margin > -1) && ($margin < 0)) {
                                                        $margin = max(-0.499, $margin);
                                                }

                                                $filename = $this->ResolveFilenameToAbsolute($filename);
                                                if (@is_readable($filename) && ($fp_watermark = @fopen($filename, 'rb'))) {
                                                        $WatermarkImageData = '';
                                                        do {
                                                                $buffer = fread($fp_watermark, 8192);
                                                                $WatermarkImageData .= $buffer;
                                                        } while (strlen($buffer) > 0);
                                                        fclose($fp_watermark);
                                                        if ($img_watermark = $this->ImageCreateFromStringReplacement($WatermarkImageData)) {
                                                                if ($margin < 1) {
                                                                        $resized_x = max(1, ImageSX($this->gdimg_output) - round(2 * (ImageSX($this->gdimg_output) * $margin)));
                                                                        $resized_y = max(1, ImageSY($this->gdimg_output) - round(2 * (ImageSY($this->gdimg_output) * $margin)));
                                                                } else {
                                                                        $resized_x = max(1, ImageSX($this->gdimg_output) - round(2 * $margin));
                                                                        $resized_y = max(1, ImageSY($this->gdimg_output) - round(2 * $margin));
                                                                }

                                                                if ($underlay) {

                                                                        if ($img_watermark_resized = phpthumb_functions::ImageCreateFunction(ImageSX($this->gdimg_output), ImageSY($this->gdimg_output))) {
                                                                                ImageAlphaBlending($img_watermark_resized, false);
                                                                                ImageSaveAlpha($img_watermark_resized, true);
                                                                                $this->ImageResizeFunction($img_watermark_resized, $img_watermark, 0, 0, 0, 0, ImageSX($img_watermark_resized), ImageSY($img_watermark_resized), ImageSX($img_watermark), ImageSY($img_watermark));
                                                                                if ($img_source_resized = phpthumb_functions::ImageCreateFunction($resized_x, $resized_y)) {
                                                                                        ImageAlphaBlending($img_source_resized, false);
                                                                                        ImageSaveAlpha($img_source_resized, true);
                                                                                        $this->ImageResizeFunction($img_source_resized, $this->gdimg_output, 0, 0, 0, 0, ImageSX($img_source_resized), ImageSY($img_source_resized), ImageSX($this->gdimg_output), ImageSY($this->gdimg_output));
                                                                                        $phpthumbFilters->WatermarkOverlay($img_watermark_resized, $img_source_resized, 'C', $opacity, $margin);
                                                                                        ImageCopy($this->gdimg_output, $img_watermark_resized, 0, 0, 0, 0, ImageSX($this->gdimg_output), ImageSY($this->gdimg_output));
                                                                                } else {
                                                                                        $this->DebugMessage('phpthumb_functions::ImageCreateFunction('.$resized_x.', '.$resized_y.')', __FILE__, __LINE__);
                                                                                }
                                                                                ImageDestroy($img_watermark_resized);
                                                                        } else {
                                                                                $this->DebugMessage('phpthumb_functions::ImageCreateFunction('.ImageSX($this->gdimg_output).', '.ImageSY($this->gdimg_output).')', __FILE__, __LINE__);
                                                                        }

                                                                } else { // overlay

                                                                        if ($img_watermark_resized = phpthumb_functions::ImageCreateFunction($resized_x, $resized_y)) {
                                                                                ImageAlphaBlending($img_watermark_resized, false);
                                                                                ImageSaveAlpha($img_watermark_resized, true);
                                                                                $this->ImageResizeFunction($img_watermark_resized, $img_watermark, 0, 0, 0, 0, ImageSX($img_watermark_resized), ImageSY($img_watermark_resized), ImageSX($img_watermark), ImageSY($img_watermark));
                                                                                $phpthumbFilters->WatermarkOverlay($this->gdimg_output, $img_watermark_resized, 'C', $opacity, $margin);
                                                                                ImageDestroy($img_watermark_resized);
                                                                        } else {
                                                                                $this->DebugMessage('phpthumb_functions::ImageCreateFunction('.$resized_x.', '.$resized_y.')', __FILE__, __LINE__);
                                                                        }

                                                                }
                                                                ImageDestroy($img_watermark);

                                                        } else {
                                                                $this->DebugMessage('ImageCreateFromStringReplacement() failed for "'.$filename.'"', __FILE__, __LINE__);
                                                        }
                                                } else {
                                                        $this->DebugMessage('Cannot open overlay file "'.$filename.'"', __FILE__, __LINE__);
                                                }
                                                break;

                                        case 'wmi': // WaterMarkImage
                                                @list($filename, $alignment, $opacity, $margin['x'], $margin['y'], $rotate_angle) = explode('|', $parameter, 6);
                                                // $margin can be pixel margin or percent margin if $alignment is text, or max width/height if $alignment is position like "50x75"
                                                $alignment    = ($alignment            ? $alignment            : 'BR');
                                                $opacity      = (strlen($opacity)      ? intval($opacity)      : 50);
                                                $rotate_angle = (strlen($rotate_angle) ? intval($rotate_angle) : 0);
                                                if (!preg_match('#^([0-9\\.\\-]*)x([0-9\\.\\-]*)$#i', $alignment, $matches)) {
                                                        $margins = array('x', 'y');
                                                        foreach ($margins as $xy) {
                                                                $margin[$xy] = (strlen($margin[$xy]) ? $margin[$xy] : 5);
                                                                if (($margin[$xy] > 0) && ($margin[$xy] < 1)) {
                                                                        $margin[$xy] = min(0.499, $margin[$xy]);
                                                                } elseif (($margin[$xy] > -1) && ($margin[$xy] < 0)) {
                                                                        $margin[$xy] = max(-0.499, $margin[$xy]);
                                                                }
                                                        }
                                                }

                                                $filename = $this->ResolveFilenameToAbsolute($filename);
                                                if (@is_readable($filename)) {
                                                        if ($img_watermark = $this->ImageCreateFromFilename($filename)) {
                                                                if ($rotate_angle !== 0) {
                                                                        $phpthumbFilters->ImprovedImageRotate($img_watermark, $rotate_angle);
                                                                }
                                                                if (preg_match('#^([0-9\\.\\-]*)x([0-9\\.\\-]*)$#i', $alignment, $matches)) {
                                                                        $watermark_max_width  = intval($margin['x'] ? $margin['x'] : ImageSX($img_watermark));
                                                                        $watermark_max_height = intval($margin['y'] ? $margin['y'] : ImageSY($img_watermark));
                                                                        $scale = phpthumb_functions::ScaleToFitInBox(ImageSX($img_watermark), ImageSY($img_watermark), $watermark_max_width, $watermark_max_height, true, true);
                                                                        $this->DebugMessage('Scaling watermark by a factor of '.number_format($scale, 4), __FILE__, __LINE__);
                                                                        if (($scale > 1) || ($scale < 1)) {
                                                                                if ($img_watermark2 = phpthumb_functions::ImageCreateFunction($scale * ImageSX($img_watermark), $scale * ImageSY($img_watermark))) {
                                                                                        ImageAlphaBlending($img_watermark2, false);
                                                                                        ImageSaveAlpha($img_watermark2, true);
                                                                                        $this->ImageResizeFunction($img_watermark2, $img_watermark, 0, 0, 0, 0, ImageSX($img_watermark2), ImageSY($img_watermark2), ImageSX($img_watermark), ImageSY($img_watermark));
                                                                                        $img_watermark = $img_watermark2;
                                                                                } else {
                                                                                        $this->DebugMessage('ImageCreateFunction('.($scale * ImageSX($img_watermark)).', '.($scale * ImageSX($img_watermark)).') failed', __FILE__, __LINE__);
                                                                                }
                                                                        }
                                                                        $watermark_dest_x = round($matches[1] - (ImageSX($img_watermark) / 2));
                                                                        $watermark_dest_y = round($matches[2] - (ImageSY($img_watermark) / 2));
                                                                        $alignment = $watermark_dest_x.'x'.$watermark_dest_y;
                                                                }
                                                                $phpthumbFilters->WatermarkOverlay($this->gdimg_output, $img_watermark, $alignment, $opacity, $margin['x'], $margin['y']);
                                                                ImageDestroy($img_watermark);
                                                                if (isset($img_watermark2) && is_resource($img_watermark2)) {
                                                                        ImageDestroy($img_watermark2);
                                                                }
                                                        } else {
                                                                $this->DebugMessage('ImageCreateFromFilename() failed for "'.$filename.'"', __FILE__, __LINE__);
                                                        }
                                                } else {
                                                        $this->DebugMessage('!is_readable('.$filename.')', __FILE__, __LINE__);
                                                }
                                                break;

                                        case 'wmt': // WaterMarkText
                                                @list($text, $size, $alignment, $hex_color, $ttffont, $opacity, $margin, $angle, $bg_color, $bg_opacity, $fillextend) = explode('|', $parameter, 11);
                                                $text       = ($text            ? $text       : '');
                                                $size       = ($size            ? $size       : 3);
                                                $alignment  = ($alignment       ? $alignment  : 'BR');
                                                $hex_color  = ($hex_color       ? $hex_color  : '000000');
                                                $ttffont    = ($ttffont         ? $ttffont    : '');
                                                $opacity    = (strlen($opacity) ? $opacity    : 50);
                                                $margin     = (strlen($margin)  ? $margin     : 5);
                                                $angle      = (strlen($angle)   ? $angle      : 0);
                                                $bg_color   = ($bg_color        ? $bg_color   : false);
                                                $bg_opacity = ($bg_opacity      ? $bg_opacity : 0);
                                                $fillextend = ($fillextend      ? $fillextend : '');

                                                if (basename($ttffont) == $ttffont) {
                                                        $ttffont = realpath($this->config_ttf_directory.DIRECTORY_SEPARATOR.$ttffont);
                                                } else {
                                                        $ttffont = $this->ResolveFilenameToAbsolute($ttffont);
                                                }
                                                $phpthumbFilters->WatermarkText($this->gdimg_output, $text, $size, $alignment, $hex_color, $ttffont, $opacity, $margin, $angle, $bg_color, $bg_opacity, $fillextend);
                                                break;

                                        case 'blur': // Blur
                                                @list($radius) = explode('|', $parameter, 1);
                                                $radius = ($radius ? $radius : 1);
                                                if (phpthumb_functions::gd_version() >= 2) {
                                                        $phpthumbFilters->Blur($this->gdimg_output, $radius);
                                                } else {
                                                        $this->DebugMessage('Skipping Blur() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                }
                                                break;

                                        case 'gblr': // Gaussian Blur
                                                $phpthumbFilters->BlurGaussian($this->gdimg_output);
                                                break;

                                        case 'sblr': // Selective Blur
                                                $phpthumbFilters->BlurSelective($this->gdimg_output);
                                                break;

                                        case 'mean': // MeanRemoval blur
                                                $phpthumbFilters->MeanRemoval($this->gdimg_output);
                                                break;

                                        case 'smth': // Smooth blur
                                                $phpthumbFilters->Smooth($this->gdimg_output, $parameter);
                                                break;

                                        case 'usm': // UnSharpMask sharpening
                                                @list($amount, $radius, $threshold) = explode('|', $parameter, 3);
                                                $amount    = ($amount            ? $amount    : 80);
                                                $radius    = ($radius            ? $radius    : 0.5);
                                                $threshold = (strlen($threshold) ? $threshold : 3);
                                                if (phpthumb_functions::gd_version() >= 2.0) {
                                                        ob_start();
                                                        if (!@include_once(dirname(__FILE__).'/phpthumb.unsharp.php')) {
                                                                $include_error = ob_get_contents();
                                                                if ($include_error) {
                                                                        $this->DebugMessage('include_once("'.dirname(__FILE__).'/phpthumb.unsharp.php") generated message: "'.$include_error.'"', __FILE__, __LINE__);
                                                                }
                                                                $this->DebugMessage('Error including "'.dirname(__FILE__).'/phpthumb.unsharp.php" which is required for unsharp masking', __FILE__, __LINE__);
                                                                ob_end_clean();
                                                                return false;
                                                        }
                                                        ob_end_clean();
                                                        phpUnsharpMask::applyUnsharpMask($this->gdimg_output, $amount, $radius, $threshold);
                                                } else {
                                                        $this->DebugMessage('Skipping unsharp mask because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                break;

                                        case 'size': // Resize
                                                @list($newwidth, $newheight, $stretch) = explode('|', $parameter);
                                                $newwidth  = (!$newwidth  ? ImageSX($this->gdimg_output) : ((($newwidth  > 0) && ($newwidth  < 1)) ? round($newwidth  * ImageSX($this->gdimg_output)) : round($newwidth)));
                                                $newheight = (!$newheight ? ImageSY($this->gdimg_output) : ((($newheight > 0) && ($newheight < 1)) ? round($newheight * ImageSY($this->gdimg_output)) : round($newheight)));
                                                $stretch   = ($stretch ? true : false);
                                                if ($stretch) {
                                                        $scale_x = phpthumb_functions::ScaleToFitInBox(ImageSX($this->gdimg_output), ImageSX($this->gdimg_output), $newwidth,  $newwidth,  true, true);
                                                        $scale_y = phpthumb_functions::ScaleToFitInBox(ImageSY($this->gdimg_output), ImageSY($this->gdimg_output), $newheight, $newheight, true, true);
                                                } else {
                                                        $scale_x = phpthumb_functions::ScaleToFitInBox(ImageSX($this->gdimg_output), ImageSY($this->gdimg_output), $newwidth, $newheight, true, true);
                                                        $scale_y = $scale_x;
                                                }
                                                $this->DebugMessage('Scaling watermark ('.($stretch ? 'with' : 'without').' stretch) by a factor of "'.number_format($scale_x, 4).' x '.number_format($scale_y, 4).'"', __FILE__, __LINE__);
                                                if (($scale_x > 1) || ($scale_x < 1) || ($scale_y > 1) || ($scale_y < 1)) {
                                                        if ($img_temp = phpthumb_functions::ImageCreateFunction(ImageSX($this->gdimg_output), ImageSY($this->gdimg_output))) {
                                                                ImageCopy($img_temp, $this->gdimg_output, 0, 0, 0, 0, ImageSX($this->gdimg_output), ImageSY($this->gdimg_output));
                                                                //ImageDestroy($this->gdimg_output);
                                                                if ($this->gdimg_output = phpthumb_functions::ImageCreateFunction($scale_x * ImageSX($img_temp), $scale_y * ImageSY($img_temp))) {
                                                                        ImageAlphaBlending($this->gdimg_output, false);
                                                                        ImageSaveAlpha($this->gdimg_output, true);
                                                                        $this->ImageResizeFunction($this->gdimg_output, $img_temp, 0, 0, 0, 0, ImageSX($this->gdimg_output), ImageSY($this->gdimg_output), ImageSX($img_temp), ImageSY($img_temp));
                                                                } else {
                                                                        $this->DebugMessage('ImageCreateFunction('.($scale_x * ImageSX($img_temp)).', '.($scale_y * ImageSY($img_temp)).') failed', __FILE__, __LINE__);
                                                                }
                                                                ImageDestroy($img_temp);
                                                        } else {
                                                                $this->DebugMessage('ImageCreateFunction('.ImageSX($this->gdimg_output).', '.ImageSY($this->gdimg_output).') failed', __FILE__, __LINE__);
                                                        }
                                                }
                                                break;

                                        case 'rot': // ROTate
                                                @list($angle, $bgcolor) = explode('|', $parameter, 2);
                                                $phpthumbFilters->ImprovedImageRotate($this->gdimg_output, $angle, $bgcolor);
                                                break;

                                        case 'stc': // Source Transparent Color
                                                @list($hexcolor, $min_limit, $max_limit) = explode('|', $parameter, 3);
                                                if (!phpthumb_functions::IsHexColor($hexcolor)) {
                                                        $this->DebugMessage('Skipping SourceTransparentColor hex color is invalid ('.$hexcolor.')', __FILE__, __LINE__);
                                                        return false;
                                                }
                                                $min_limit = (strlen($min_limit) ? $min_limit :  5);
                                                $max_limit = (strlen($max_limit) ? $max_limit : 10);
                                                if ($gdimg_mask = $phpthumbFilters->SourceTransparentColorMask($this->gdimg_output, $hexcolor, $min_limit, $max_limit)) {
                                                        $this->is_alpha = true;
                                                        $phpthumbFilters->ApplyMask($gdimg_mask, $this->gdimg_output);
                                                        ImageDestroy($gdimg_mask);
                                                } else {
                                                        $this->DebugMessage('SourceTransparentColorMask() failed for "'.$mask_filename.'"', __FILE__, __LINE__);
                                                }
                                                break;
                                }
                                $this->DebugMessage('Finished processing filter command "'.$command.'('.$parameter.')"', __FILE__, __LINE__);
                        }
                }
                return true;
        }


        function MaxFileSize() {
                if (phpthumb_functions::gd_version() < 2) {
                        $this->DebugMessage('Skipping MaxFileSize() because gd_version is "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                        return false;
                }
                if ($this->maxb > 0) {
                        switch ($this->thumbnailFormat) {
                                case 'png':
                                case 'gif':
                                        $imgRenderFunction = 'image'.$this->thumbnailFormat;

                                        ob_start();
                                        $imgRenderFunction($this->gdimg_output);
                                        $imgdata = ob_get_contents();
                                        ob_end_clean();

                                        if (strlen($imgdata) > $this->maxb) {
                                                for ($i = 8; $i >= 1; $i--) {
                                                        $tempIMG = ImageCreateTrueColor(ImageSX($this->gdimg_output), ImageSY($this->gdimg_output));
                                                        ImageCopy($tempIMG, $this->gdimg_output, 0, 0, 0, 0, ImageSX($this->gdimg_output), ImageSY($this->gdimg_output));
                                                        ImageTrueColorToPalette($tempIMG, true, pow(2, $i));
                                                        ob_start();
                                                        $imgRenderFunction($tempIMG);
                                                        $imgdata = ob_get_contents();
                                                        ob_end_clean();

                                                        if (strlen($imgdata) <= $this->maxb) {
                                                                ImageTrueColorToPalette($this->gdimg_output, true, pow(2, $i));
                                                                break;
                                                        }
                                                }
                                        }
                                        if (strlen($imgdata) > $this->maxb) {
                                                ImageTrueColorToPalette($this->gdimg_output, true, pow(2, $i));
                                                return false;
                                        }
                                        break;

                                case 'jpeg':
                                        ob_start();
                                        ImageJPEG($this->gdimg_output);
                                        $imgdata = ob_get_contents();
                                        ob_end_clean();

                                        $OriginalJPEGquality = $this->thumbnailQuality;
                                        if (strlen($imgdata) > $this->maxb) {
                                                for ($i = 3; $i < 20; $i++) {
                                                        $q = round(100 * (1 - log10($i / 2)));
                                                        ob_start();
                                                        ImageJPEG($this->gdimg_output, '', $q);
                                                        $imgdata = ob_get_contents();
                                                        ob_end_clean();

                                                        $this->thumbnailQuality = $q;
                                                        if (strlen($imgdata) <= $this->maxb) {
                                                                break;
                                                        }
                                                }
                                        }
                                        if (strlen($imgdata) > $this->maxb) {
                                                return false;
                                        }
                                        break;

                                default:
                                        return false;
                                        break;
                        }
                }
                return true;
        }


        function CalculateThumbnailDimensions() {
                $this->DebugMessage('CalculateThumbnailDimensions() starting with [W,H,sx,sy,sw,sh] initially set to ['.$this->source_width.','.$this->source_height.','.$this->sx.','.$this->sy.','.$this->sw.','.$this->sh.']', __FILE__, __LINE__);
//echo $this->source_width.'x'.$this->source_height.'<hr>';
                $this->thumbnailCropX = ($this->sx ? (($this->sx >= 2) ? $this->sx : round($this->sx * $this->source_width))  : 0);
//echo $this->thumbnailCropX.'<br>';
                $this->thumbnailCropY = ($this->sy ? (($this->sy >= 2) ? $this->sy : round($this->sy * $this->source_height)) : 0);
//echo $this->thumbnailCropY.'<br>';
                $this->thumbnailCropW = ($this->sw ? (($this->sw >= 2) ? $this->sw : round($this->sw * $this->source_width))  : $this->source_width);
//echo $this->thumbnailCropW.'<br>';
                $this->thumbnailCropH = ($this->sh ? (($this->sh >= 2) ? $this->sh : round($this->sh * $this->source_height)) : $this->source_height);
//echo $this->thumbnailCropH.'<hr>';

                // limit source area to original image area
                $this->thumbnailCropW = max(1, min($this->thumbnailCropW, $this->source_width  - $this->thumbnailCropX));
                $this->thumbnailCropH = max(1, min($this->thumbnailCropH, $this->source_height - $this->thumbnailCropY));

                $this->DebugMessage('CalculateThumbnailDimensions() starting with [x,y,w,h] initially set to ['.$this->thumbnailCropX.','.$this->thumbnailCropY.','.$this->thumbnailCropW.','.$this->thumbnailCropH.']', __FILE__, __LINE__);


                if ($this->zc && $this->w && $this->h) {
                        // Zoom Crop
                        // retain proportional resizing we did above, but crop off larger dimension so smaller
                        // dimension fully fits available space

                        $scaling_X = $this->source_width  / $this->w;
                        $scaling_Y = $this->source_height / $this->h;
                        if ($scaling_X > $scaling_Y) {
                                // some of the width will need to be cropped
                                $allowable_width = $this->source_width / $scaling_X * $scaling_Y;
                                $this->thumbnailCropW = round($allowable_width);
                                $this->thumbnailCropX = round(($this->source_width - $allowable_width) / 2);

                        } elseif ($scaling_Y > $scaling_X) {
                                // some of the height will need to be cropped
                                $allowable_height = $this->source_height / $scaling_Y * $scaling_X;
                                $this->thumbnailCropH = round($allowable_height);
                                $this->thumbnailCropY = round(($this->source_height - $allowable_height) / 2);

                        } else {
                                // image fits perfectly, no cropping needed
                        }
                        $this->thumbnail_width  = $this->w;
                        $this->thumbnail_height = $this->h;
                        $this->thumbnail_image_width  = $this->thumbnail_width;
                        $this->thumbnail_image_height = $this->thumbnail_height;

                } elseif ($this->iar && $this->w && $this->h) {

                        // Ignore Aspect Ratio
                        // stretch image to fit exactly 'w' x 'h'
                        $this->thumbnail_width  = $this->w;
                        $this->thumbnail_height = $this->h;
                        $this->thumbnail_image_width  = $this->thumbnail_width;
                        $this->thumbnail_image_height = $this->thumbnail_height;

                } else {

                        $original_aspect_ratio = $this->thumbnailCropW / $this->thumbnailCropH;
                        if ($this->aoe) {
                                if ($this->w && $this->h) {
                                        $maxwidth  = min($this->w, $this->h * $original_aspect_ratio);
                                        $maxheight = min($this->h, $this->w / $original_aspect_ratio);
                                } elseif ($this->w) {
                                        $maxwidth  = $this->w;
                                        $maxheight = $this->w / $original_aspect_ratio;
                                } elseif ($this->h) {
                                        $maxwidth  = $this->h * $original_aspect_ratio;
                                        $maxheight = $this->h;
                                } else {
                                        $maxwidth  = $this->thumbnailCropW;
                                        $maxheight = $this->thumbnailCropH;
                                }
                        } else {
                                $maxwidth  = phpthumb_functions::nonempty_min($this->w, $this->thumbnailCropW, $this->config_output_maxwidth);
                                $maxheight = phpthumb_functions::nonempty_min($this->h, $this->thumbnailCropH, $this->config_output_maxheight);
//echo $maxwidth.'x'.$maxheight.'<br>';
                                $maxwidth  = min($maxwidth, $maxheight * $original_aspect_ratio);
                                $maxheight = min($maxheight, $maxwidth / $original_aspect_ratio);
//echo $maxwidth.'x'.$maxheight.'<hr>';
                        }

                        $this->thumbnail_image_width  = $maxwidth;
                        $this->thumbnail_image_height = $maxheight;
                        $this->thumbnail_width  = $maxwidth;
                        $this->thumbnail_height = $maxheight;

                        $this->FixedAspectRatio();
                }

                $this->thumbnail_width  = max(1, floor($this->thumbnail_width));
                $this->thumbnail_height = max(1, floor($this->thumbnail_height));
                return true;
        }


        function CreateGDoutput() {
                $this->CalculateThumbnailDimensions();

                // Create the GD image (either true-color or 256-color, depending on GD version)
                $this->gdimg_output = phpthumb_functions::ImageCreateFunction($this->thumbnail_width, $this->thumbnail_height);

                // Images that have transparency must have the background filled with the configured 'bg' color
                // otherwise the transparent color will appear as black
                ImageSaveAlpha($this->gdimg_output, true);
                if ($this->is_alpha && phpthumb_functions::gd_version() >= 2) {

                        ImageAlphaBlending($this->gdimg_output, false);
                        $output_full_alpha = phpthumb_functions::ImageColorAllocateAlphaSafe($this->gdimg_output, 255, 255, 255, 127);
                        ImageFilledRectangle($this->gdimg_output, 0, 0, $this->thumbnail_width, $this->thumbnail_height, $output_full_alpha);

                } else {

                        $current_transparent_color = ImageColorTransparent($this->gdimg_source);
                        if ($this->bg || (@$current_transparent_color >= 0)) {

                                $this->config_background_hexcolor = ($this->bg ? $this->bg : $this->config_background_hexcolor);
                                if (!phpthumb_functions::IsHexColor($this->config_background_hexcolor)) {
                                        return $this->ErrorImage('Invalid hex color string "'.$this->config_background_hexcolor.'" for parameter "bg"');
                                }
                                $background_color = phpthumb_functions::ImageHexColorAllocate($this->gdimg_output, $this->config_background_hexcolor);
                                ImageFilledRectangle($this->gdimg_output, 0, 0, $this->thumbnail_width, $this->thumbnail_height, $background_color);

                        }

                }
                $this->DebugMessage('CreateGDoutput() returning canvas "'.$this->thumbnail_width.'x'.$this->thumbnail_height.'"', __FILE__, __LINE__);
                return true;
        }

        function SetOrientationDependantWidthHeight() {
                $this->DebugMessage('SetOrientationDependantWidthHeight() starting with "'.$this->source_width.'"x"'.$this->source_height.'"', __FILE__, __LINE__);
                if ($this->source_height > $this->source_width) {
                        // portrait
                        $this->w = phpthumb_functions::OneOfThese($this->wp, $this->w, $this->ws, $this->wl);
                        $this->h = phpthumb_functions::OneOfThese($this->hp, $this->h, $this->hs, $this->hl);
                } elseif ($this->source_height < $this->source_width) {
                        // landscape
                        $this->w = phpthumb_functions::OneOfThese($this->wl, $this->w, $this->ws, $this->wp);
                        $this->h = phpthumb_functions::OneOfThese($this->hl, $this->h, $this->hs, $this->hp);
                } else {
                        // square
                        $this->w = phpthumb_functions::OneOfThese($this->ws, $this->w, $this->wl, $this->wp);
                        $this->h = phpthumb_functions::OneOfThese($this->hs, $this->h, $this->hl, $this->hp);
                }
                //$this->w = round($this->w ? $this->w : (($this->h && $this->source_height) ? $this->h * $this->source_width  / $this->source_height : $this->w));
                //$this->h = round($this->h ? $this->h : (($this->w && $this->source_width)  ? $this->w * $this->source_height / $this->source_width  : $this->h));
                $this->DebugMessage('SetOrientationDependantWidthHeight() setting w="'.intval($this->w).'", h="'.intval($this->h).'"', __FILE__, __LINE__);
                return true;
        }

        function ExtractEXIFgetImageSize() {
                $this->DebugMessage('starting ExtractEXIFgetImageSize()', __FILE__, __LINE__);

                if (preg_match('#^http:#i', $this->src) && !$this->sourceFilename && $this->rawImageData) {
                        !$this->SourceDataToTempFile();
                }
                if (is_null($this->getimagesizeinfo)) {
                        if ($this->sourceFilename) {
                                $this->getimagesizeinfo = @GetImageSize($this->sourceFilename);
                                $this->source_width  = $this->getimagesizeinfo[0];
                                $this->source_height = $this->getimagesizeinfo[1];
                                $this->DebugMessage('GetImageSize('.$this->sourceFilename.') says image is '.$this->source_width.'x'.$this->source_height, __FILE__, __LINE__);
                        } else {
                                $this->DebugMessage('skipping GetImageSize() because $this->sourceFilename is empty', __FILE__, __LINE__);
                        }
                } else {
                        $this->DebugMessage('skipping GetImageSize() because !is_null($this->getimagesizeinfo)', __FILE__, __LINE__);
                }

                if (is_resource($this->gdimg_source)) {

                        $this->source_width  = ImageSX($this->gdimg_source);
                        $this->source_height = ImageSY($this->gdimg_source);

                        $this->SetOrientationDependantWidthHeight();

                } elseif ($this->rawImageData && !$this->sourceFilename) {

                        if ($this->SourceImageIsTooLarge($this->source_width, $this->source_height)) {
                                $this->DebugMessage('NOT bypassing EXIF and GetImageSize sections because source image is too large for GD ('.$this->source_width.'x'.$this->source_width.'='.($this->source_width * $this->source_height * 5).'MB)', __FILE__, __LINE__);
                        } else {
                                $this->DebugMessage('bypassing EXIF and GetImageSize sections because $this->rawImageData is set, and $this->sourceFilename is not set, and source image is not too large for GD ('.$this->source_width.'x'.$this->source_width.'='.($this->source_width * $this->source_height * 5).'MB)', __FILE__, __LINE__);
                        }

                }

                if (is_null($this->getimagesizeinfo)) {
                        $this->getimagesizeinfo = @GetImageSize($this->sourceFilename);
                }

                if (!empty($this->getimagesizeinfo)) {
                        // great
                        $this->getimagesizeinfo['filesize'] = @filesize($this->sourceFilename);
                } elseif (!$this->rawImageData) {
                        $this->DebugMessage('GetImageSize("'.$this->sourceFilename.'") failed', __FILE__, __LINE__);
                }

                if ($this->config_prefer_imagemagick) {
                        if ($this->ImageMagickThumbnailToGD()) {
                                return true;
                        }
                        $this->DebugMessage('ImageMagickThumbnailToGD() failed', __FILE__, __LINE__);
                }

                $this->source_width  = $this->getimagesizeinfo[0];
                $this->source_height = $this->getimagesizeinfo[1];

                $this->SetOrientationDependantWidthHeight();

                if (phpthumb_functions::version_compare_replacement(phpversion(), '4.2.0', '>=') && function_exists('exif_read_data')) {
                        switch ($this->getimagesizeinfo[2]) {
                                case IMAGETYPE_JPEG:
                                case IMAGETYPE_TIFF_II:
                                case IMAGETYPE_TIFF_MM:
                                        $this->exif_raw_data = @exif_read_data($this->sourceFilename, 0, true);
                                        break;
                        }
                }
                if (function_exists('exif_thumbnail') && ($this->getimagesizeinfo[2] == IMAGETYPE_JPEG)) {
                        // Extract EXIF info from JPEGs

                        $this->exif_thumbnail_width  = '';
                        $this->exif_thumbnail_height = '';
                        $this->exif_thumbnail_type   = '';

                        // The parameters width, height and imagetype are available since PHP v4.3.0
                        if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.0', '>=')) {

                                $this->exif_thumbnail_data = @exif_thumbnail($this->sourceFilename, $this->exif_thumbnail_width, $this->exif_thumbnail_height, $this->exif_thumbnail_type);

                        } else {

                                // older versions of exif_thumbnail output an error message but NOT return false on failure
                                ob_start();
                                $this->exif_thumbnail_data = exif_thumbnail($this->sourceFilename);
                                $exit_thumbnail_error = ob_get_contents();
                                ob_end_clean();
                                if (!$exit_thumbnail_error && $this->exif_thumbnail_data) {

                                        if ($gdimg_exif_temp = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false)) {
                                                $this->exif_thumbnail_width  = ImageSX($gdimg_exif_temp);
                                                $this->exif_thumbnail_height = ImageSY($gdimg_exif_temp);
                                                $this->exif_thumbnail_type   = 2; // (2 == JPEG) before PHP v4.3.0 only JPEG format EXIF thumbnails are returned
                                                unset($gdimg_exif_temp);
                                        } else {
                                                return $this->ErrorImage('Failed - $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data) in '.__FILE__.' on line '.__LINE__);
                                        }

                                }

                        }

                } elseif (!function_exists('exif_thumbnail')) {

                        $this->DebugMessage('exif_thumbnail() does not exist, cannot extract EXIF thumbnail', __FILE__, __LINE__);

                }

                $this->DebugMessage('EXIF thumbnail extraction: (size='.strlen($this->exif_thumbnail_data).'; type="'.$this->exif_thumbnail_type.'"; '.intval($this->exif_thumbnail_width).'x'.intval($this->exif_thumbnail_height).')', __FILE__, __LINE__);

                // see if EXIF thumbnail can be used directly with no processing
                if ($this->config_use_exif_thumbnail_for_speed && $this->exif_thumbnail_data) {
                        while (true) {
                                if (!$this->xto) {
                                        $source_ar = $this->source_width / $this->source_height;
                                        $exif_ar = $this->exif_thumbnail_width / $this->exif_thumbnail_height;
                                        if (number_format($source_ar, 2) != number_format($exif_ar, 2)) {
                                                $this->DebugMessage('not using EXIF thumbnail because $source_ar != $exif_ar ('.$source_ar.' != '.$exif_ar.')', __FILE__, __LINE__);
                                                break;
                                        }
                                        if ($this->w && ($this->w != $this->exif_thumbnail_width)) {
                                                $this->DebugMessage('not using EXIF thumbnail because $this->w != $this->exif_thumbnail_width ('.$this->w.' != '.$this->exif_thumbnail_width.')', __FILE__, __LINE__);
                                                break;
                                        }
                                        if ($this->h && ($this->h != $this->exif_thumbnail_height)) {
                                                $this->DebugMessage('not using EXIF thumbnail because $this->h != $this->exif_thumbnail_height ('.$this->h.' != '.$this->exif_thumbnail_height.')', __FILE__, __LINE__);
                                                break;
                                        }
                                        $CannotBeSetParameters = array('sx', 'sy', 'sh', 'sw', 'far', 'bg', 'bc', 'fltr', 'phpThumbDebug');
                                        foreach ($CannotBeSetParameters as $parameter) {
                                                if ($this->$parameter) {
                                                        break 2;
                                                }
                                        }
                                }

                                $this->DebugMessage('setting $this->gdimg_source = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data)', __FILE__, __LINE__);
                                $this->gdimg_source = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data);
                                $this->source_width  = ImageSX($this->gdimg_source);
                                $this->source_height = ImageSY($this->gdimg_source);
                                return true;
                        }
                }

                if (($this->config_max_source_pixels > 0) && (($this->source_width * $this->source_height) > $this->config_max_source_pixels)) {

                        // Source image is larger than would fit in available PHP memory.
                        // If ImageMagick is installed, use it to generate the thumbnail.
                        // Else, if an EXIF thumbnail is available, use that as the source image.
                        // Otherwise, no choice but to fail with an error message
                        $this->DebugMessage('image is '.$this->source_width.'x'.$this->source_height.' and therefore contains more pixels ('.($this->source_width * $this->source_height).') than $this->config_max_source_pixels setting ('.$this->config_max_source_pixels.')', __FILE__, __LINE__);
                        if (!$this->config_prefer_imagemagick && $this->ImageMagickThumbnailToGD()) {
                                // excellent, we have a thumbnailed source image
                                return true;
                        }

                }
                return true;
        }


        function SetCacheFilename() {
                if (!is_null($this->cache_filename)) {
                        $this->DebugMessage('$this->cache_filename already set, skipping SetCacheFilename()', __FILE__, __LINE__);
                        return true;
                }
                $this->setOutputFormat();
                $this->setCacheDirectory();
                if (!$this->config_cache_directory) {
                        $this->DebugMessage('SetCacheFilename() failed because $this->config_cache_directory is empty', __FILE__, __LINE__);
                        return false;
                }

                if (!$this->sourceFilename && !$this->rawImageData && $this->src) {
                        $this->sourceFilename = $this->ResolveFilenameToAbsolute($this->src);
                }

                if ($this->config_cache_default_only_suffix && $this->sourceFilename) {
                        // simplified cache filenames:
                        // only use default parameters in phpThumb.config.php
                        // substitute source filename into * in $this->config_cache_default_only_suffix
                        // (eg: '*_thumb' becomes 'picture_thumb.jpg')
                        if (strpos($this->config_cache_default_only_suffix, '*') === false) {
                                $this->DebugMessage('aborting simplified caching filename because no * in "'.$this->config_cache_default_only_suffix.'"', __FILE__, __LINE__);
                        } else {
                                preg_match('#(.+)(\\.[a-z0-9]+)?$#i', basename($this->sourceFilename), $matches);
                                $this->cache_filename = $this->config_cache_directory.DIRECTORY_SEPARATOR.rawurlencode(str_replace('*', @$matches[1], $this->config_cache_default_only_suffix)).'.'.strtolower($this->thumbnailFormat);
                                return true;
                        }
                }

                $this->cache_filename = '';
                $broad_directory_name = '';
                if ($this->new) {
                        $broad_directory_name = strtolower(md5($this->new));
                        $this->cache_filename .= '_new'.$broad_directory_name;
                } elseif ($this->md5s) {
                        // source image MD5 hash provided
                        $this->DebugMessage('SetCacheFilename() _raw set from $this->md5s = "'.$this->md5s.'"', __FILE__, __LINE__);
                        $broad_directory_name = $this->md5s;
                        $this->cache_filename .= '_raw'.$this->md5s;
                } elseif (!$this->src && $this->rawImageData) {
                        $this->DebugMessage('SetCacheFilename() _raw set from md5($this->rawImageData) = "'.md5($this->rawImageData).'"', __FILE__, __LINE__);
                        $broad_directory_name = strtolower(md5($this->rawImageData));
                        $this->cache_filename .= '_raw'.$broad_directory_name;
                } else {
                        $this->DebugMessage('SetCacheFilename() _src set from md5($this->sourceFilename) "'.$this->sourceFilename.'" = "'.md5($this->sourceFilename).'"', __FILE__, __LINE__);
                        $broad_directory_name = strtolower(md5($this->sourceFilename));
                        $this->cache_filename .= '_src'.$broad_directory_name;
                }
                if (@$_SERVER['HTTP_REFERER'] && $this->config_nooffsitelink_enabled) {
                        $parsed_url1 = @phpthumb_functions::ParseURLbetter(@$_SERVER['HTTP_REFERER']);
                        $parsed_url2 = @phpthumb_functions::ParseURLbetter('http://'.@$_SERVER['HTTP_HOST']);
                        if (@$parsed_url1['host'] && @$parsed_url2['host'] && ($parsed_url1['host'] != $parsed_url2['host'])) {
                                // include "_offsite" only if nooffsitelink_enabled and if referrer doesn't match the domain of the current server
                                $this->cache_filename .= '_offsite';
                        }
                }

                $ParametersString = '';
                if ($this->fltr && is_array($this->fltr)) {
                        $ParametersString .= '_fltr'.implode('_fltr', $this->fltr);
                }
                $FilenameParameters1 = array('ar', 'bg', 'bc', 'far', 'sx', 'sy', 'sw', 'sh', 'zc');
                foreach ($FilenameParameters1 as $key) {
                        if ($this->$key) {
                                $ParametersString .= '_'.$key.$this->$key;
                        }
                }
                $FilenameParameters2 = array('h', 'w', 'wl', 'wp', 'ws', 'hp', 'hs', 'xto', 'ra', 'iar', 'aoe', 'maxb', 'sfn', 'dpi');
                foreach ($FilenameParameters2 as $key) {
                        if ($this->$key) {
                                $ParametersString .= '_'.$key.intval($this->$key);
                        }
                }
                if ($this->thumbnailFormat == 'jpeg') {
                        // only JPEG output has variable quality option
                        $ParametersString .= '_q'.intval($this->thumbnailQuality);
                }
                $this->DebugMessage('SetCacheFilename() _par set from md5('.$ParametersString.')', __FILE__, __LINE__);
                $this->cache_filename .= '_par'.strtolower(md5($ParametersString));

                if ($this->md5s) {
                        // source image MD5 hash provided
                        // do not source image modification date --
                        // cached image will be used even if file was modified or removed
                } elseif (!$this->config_cache_source_filemtime_ignore_remote && preg_match('#^(f|ht)tps?\://#i', $this->src)) {
                        $this->cache_filename .= '_dat'.intval(phpthumb_functions::filedate_remote($this->src));
                } elseif (!$this->config_cache_source_filemtime_ignore_local && $this->src && !$this->rawImageData) {
                        $this->cache_filename .= '_dat'.intval(@filemtime($this->sourceFilename));
                }

                $this->cache_filename .= '.'.strtolower($this->thumbnailFormat);
                $broad_directories = '';
                for ($i = 0; $i < $this->config_cache_directory_depth; $i++) {
                        $broad_directories .= DIRECTORY_SEPARATOR.substr($broad_directory_name, 0, $i + 1);
                }

                $this->cache_filename = $this->config_cache_directory.$broad_directories.DIRECTORY_SEPARATOR.$this->config_cache_prefix.rawurlencode($this->cache_filename);
                return true;
        }


        function SourceImageIsTooLarge($width, $height) {
                if (!$this->config_max_source_pixels) {
                        return false;
                }
                if (function_exists('memory_get_usage')) {
                        $available_memory = max(intval(ini_get('memory_limit')), intval(get_cfg_var('memory_limit'))) * 1048576;
                        $available_memory -= memory_get_usage();
                        return (bool) (($width * $height * 5) > $available_memory);
                }
                return (bool) (($width * $height) > $this->config_max_source_pixels);
        }

        function ImageCreateFromFilename($filename) {
                // try to create GD image source directly via GD, if possible,
                // rather than buffering to memory and creating with ImageCreateFromString
                $ImageCreateWasAttempted = false;
                $gd_image = false;

                $this->DebugMessage('starting ImageCreateFromFilename('.$filename.')', __FILE__, __LINE__);
                if ($filename && ($getimagesizeinfo = @GetImageSize($filename))) {
                        if (!$this->SourceImageIsTooLarge($getimagesizeinfo[0], $getimagesizeinfo[1])) {
                                $ImageCreateFromFunction = array(
                                        1  => 'ImageCreateFromGIF',
                                        2  => 'ImageCreateFromJPEG',
                                        3  => 'ImageCreateFromPNG',
                                        15 => 'ImageCreateFromWBMP',
                                );
                                $this->DebugMessage('ImageCreateFromFilename found ($getimagesizeinfo[2]=='.@$getimagesizeinfo[2].')', __FILE__, __LINE__);
                                switch (@$getimagesizeinfo[2]) {
                                        case 1:  // GIF
                                        case 2:  // JPEG
                                        case 3:  // PNG
                                        case 15: // WBMP
                                                $ImageCreateFromFunctionName = $ImageCreateFromFunction[$getimagesizeinfo[2]];
                                                if (function_exists($ImageCreateFromFunctionName)) {
                                                        $this->DebugMessage('Calling '.$ImageCreateFromFunctionName.'('.$filename.')', __FILE__, __LINE__);
                                                        $ImageCreateWasAttempted = true;
                                                        $gd_image = $ImageCreateFromFunctionName($filename);
                                                } else {
                                                        $this->DebugMessage('NOT calling '.$ImageCreateFromFunctionName.'('.$filename.') because !function_exists('.$ImageCreateFromFunctionName.')', __FILE__, __LINE__);
                                                }
                                                break;

                                        case 4:  // SWF
                                        case 5:  // PSD
                                        case 6:  // BMP
                                        case 7:  // TIFF (LE)
                                        case 8:  // TIFF (BE)
                                        case 9:  // JPC
                                        case 10: // JP2
                                        case 11: // JPX
                                        case 12: // JB2
                                        case 13: // SWC
                                        case 14: // IFF
                                        case 16: // XBM
                                                $this->DebugMessage('No built-in image creation function for image type "'.@$getimagesizeinfo[2].'" ($getimagesizeinfo[2])', __FILE__, __LINE__);
                                                break;

                                        default:
                                                $this->DebugMessage('Unknown value for $getimagesizeinfo[2]: "'.@$getimagesizeinfo[2].'"', __FILE__, __LINE__);
                                                break;
                                }
                        } else {
                                $this->DebugMessage('image is '.$getimagesizeinfo[0].'x'.$getimagesizeinfo[1].' and therefore contains more pixels ('.($getimagesizeinfo[0] * $getimagesizeinfo[1]).') than $this->config_max_source_pixels setting ('.$this->config_max_source_pixels.')', __FILE__, __LINE__);
                                return false;
                        }
                } else {
                        $this->DebugMessage('empty $filename or GetImageSize('.$filename.') failed', __FILE__, __LINE__);
                }

                if (!$gd_image) {
                        // cannot create from filename, attempt to create source image with ImageCreateFromString, if possible
                        if ($ImageCreateWasAttempted) {
                                $this->DebugMessage(@$ImageCreateFromFunctionName.'() was attempted but FAILED', __FILE__, __LINE__);
                        }
                        $this->DebugMessage('Populating $rawimagedata', __FILE__, __LINE__);
                        $rawimagedata = '';
                        if ($fp = @fopen($filename, 'rb')) {
                                $filesize = filesize($filename);
                                $blocksize = 8192;
                                $blockreads = ceil($filesize / $blocksize);
                                for ($i = 0; $i < $blockreads; $i++) {
                                        $rawimagedata .= fread($fp, $blocksize);
                                }
                                fclose($fp);
                        } else {
                                $this->DebugMessage('cannot fopen('.$filename.')', __FILE__, __LINE__);
                        }
                        if ($rawimagedata) {
                                $this->DebugMessage('attempting ImageCreateFromStringReplacement($rawimagedata ('.strlen($rawimagedata).' bytes), true)', __FILE__, __LINE__);
                                $gd_image = $this->ImageCreateFromStringReplacement($rawimagedata, true);
                        }
                }
                return $gd_image;
        }

        function SourceImageToGD() {
                if (is_resource($this->gdimg_source)) {
                        $this->source_width  = ImageSX($this->gdimg_source);
                        $this->source_height = ImageSY($this->gdimg_source);
                        $this->DebugMessage('skipping SourceImageToGD() because $this->gdimg_source is already a resource ('.$this->source_width.'x'.$this->source_height.')', __FILE__, __LINE__);
                        return true;
                }
                $this->DebugMessage('starting SourceImageToGD()', __FILE__, __LINE__);

                if ($this->config_prefer_imagemagick) {
                        if (empty($this->sourceFilename) && !empty($this->rawImageData)) {
                                $this->DebugMessage('Copying raw image data to temp file and trying again with ImageMagick', __FILE__, __LINE__);
                                if ($tempnam = $this->phpThumb_tempnam()) {
                                        if (file_put_contents($tempname, $this->rawImageData)) {
                                                $this->sourceFilename = $tempnam;
                                                if ($this->ImageMagickThumbnailToGD()) {
                                                        // excellent, we have a thumbnailed source image
                                                        $this->DebugMessage('ImageMagickThumbnailToGD() succeeded', __FILE__, __LINE__);
                                                } else {
                                                        $this->DebugMessage('ImageMagickThumbnailToGD() failed', __FILE__, __LINE__);
                                                }
                                        } else {
                                                $this->DebugMessage('failed to put $this->rawImageData into temp file "'.$tempnam.'"', __FILE__, __LINE__);
                                        }
                                } else {
                                        $this->DebugMessage('failed to generate temp file name', __FILE__, __LINE__);
                                }
                        }
                }
                if (!$this->gdimg_source && $this->rawImageData) {

                        if ($this->SourceImageIsTooLarge($this->source_width, $this->source_height)) {
                                $memory_get_usage = (function_exists('memory_get_usage') ? memory_get_usage() : 0);
                                return $this->ErrorImage('Source image is too large ('.$this->source_width.'x'.$this->source_height.' = '.number_format($this->source_width * $this->source_height / 1000000, 1).'Mpx, max='.number_format($this->config_max_source_pixels / 1000000, 1).'Mpx) for GD creation (either install ImageMagick or increase PHP memory_limit to at least '.ceil(($memory_get_usage + (5 * $this->source_width * $this->source_height)) / 1048576).'M).');
                        }
                        if ($this->md5s && ($this->md5s != md5($this->rawImageData))) {
                                return $this->ErrorImage('$this->md5s != md5($this->rawImageData)'."\n".'"'.$this->md5s.'" != '."\n".'"'.md5($this->rawImageData).'"');
                        }
                        //if ($this->issafemode) {
                        //      return $this->ErrorImage('Cannot generate thumbnails from raw image data when PHP SAFE_MODE enabled');
                        //}
                        $this->gdimg_source = $this->ImageCreateFromStringReplacement($this->rawImageData);
                        if (!$this->gdimg_source) {
                                if (substr($this->rawImageData, 0, 2) === 'BM') {
                                        $this->getimagesizeinfo[2] = 6; // BMP
                                } elseif (substr($this->rawImageData, 0, 4) === 'II'."\x2A\x00") {
                                        $this->getimagesizeinfo[2] = 7; // TIFF (littlendian)
                                } elseif (substr($this->rawImageData, 0, 4) === 'MM'."\x00\x2A") {
                                        $this->getimagesizeinfo[2] = 8; // TIFF (bigendian)
                                }
                                $this->DebugMessage('SourceImageToGD.ImageCreateFromStringReplacement() failed with unknown image type "'.substr($this->rawImageData, 0, 4).'" ('.phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 4)).')', __FILE__, __LINE__);
//                              return $this->ErrorImage('Unknown image type identified by "'.substr($this->rawImageData, 0, 4).'" ('.phpthumb_functions::HexCharDisplay(substr($this->rawImageData, 0, 4)).') in SourceImageToGD()['.__LINE__.']');
                        }

                } elseif (!$this->gdimg_source && $this->sourceFilename) {

                        if ($this->md5s && ($this->md5s != phpthumb_functions::md5_file_safe($this->sourceFilename))) {
                                return $this->ErrorImage('$this->md5s != md5(sourceFilename)'."\n".'"'.$this->md5s.'" != '."\n".'"'.phpthumb_functions::md5_file_safe($this->sourceFilename).'"');
                        }
                        switch (@$this->getimagesizeinfo[2]) {
                                case 1:
                                case 3:
                                        // GIF or PNG input file may have transparency
                                        $this->is_alpha = true;
                                        break;
                        }
                        if (!$this->SourceImageIsTooLarge($this->source_width, $this->source_height)) {
                                $this->gdimg_source = $this->ImageCreateFromFilename($this->sourceFilename);
                        }

                }

                while (true) {
                        if ($this->gdimg_source) {
                                $this->DebugMessage('Not using EXIF thumbnail data because $this->gdimg_source is already set', __FILE__, __LINE__);
                                break;
                        }
                        if (!$this->exif_thumbnail_data) {
                                $this->DebugMessage('Not using EXIF thumbnail data because $this->exif_thumbnail_data is empty', __FILE__, __LINE__);
                                break;
                        }
                        if (ini_get('safe_mode')) {
                                if (!$this->SourceImageIsTooLarge($this->source_width, $this->source_height)) {
                                        $this->DebugMessage('Using EXIF thumbnail data because source image too large and safe_mode enabled', __FILE__, __LINE__);
                                        $this->aoe = true;
                                } else {
                                        break;
                                }
                        } else {
                                if (!$this->config_use_exif_thumbnail_for_speed) {
                                        $this->DebugMessage('Not using EXIF thumbnail data because $this->config_use_exif_thumbnail_for_speed is FALSE', __FILE__, __LINE__);
                                        break;
                                }
                                if (($this->thumbnailCropX != 0) || ($this->thumbnailCropY != 0)) {
                                        $this->DebugMessage('Not using EXIF thumbnail data because source cropping is enabled ('.$this->thumbnailCropX.','.$this->thumbnailCropY.')', __FILE__, __LINE__);
                                        break;
                                }
                                if (($this->w > $this->exif_thumbnail_width) || ($this->h > $this->exif_thumbnail_height)) {
                                        $this->DebugMessage('Not using EXIF thumbnail data because EXIF thumbnail is too small ('.$this->exif_thumbnail_width.'x'.$this->exif_thumbnail_height.' vs '.$this->w.'x'.$this->h.')', __FILE__, __LINE__);
                                        break;
                                }
                                $source_ar = $this->source_width / $this->source_height;
                                $exif_ar   = $this->exif_thumbnail_width / $this->exif_thumbnail_height;
                                if (number_format($source_ar, 2) != number_format($exif_ar, 2)) {
                                        $this->DebugMessage('not using EXIF thumbnail because $source_ar != $exif_ar ('.$source_ar.' != '.$exif_ar.')', __FILE__, __LINE__);
                                        break;
                                }
                        }

                        // EXIF thumbnail exists, and is equal to or larger than destination thumbnail, and will be use as source image
                        $this->DebugMessage('Trying to use EXIF thumbnail as source image', __FILE__, __LINE__);

                        if ($gdimg_exif_temp = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false)) {

                                $this->DebugMessage('Successfully using EXIF thumbnail as source image', __FILE__, __LINE__);
                                $this->gdimg_source   = $gdimg_exif_temp;
                                $this->source_width   = $this->exif_thumbnail_width;
                                $this->source_height  = $this->exif_thumbnail_height;
                                $this->thumbnailCropW = $this->source_width;
                                $this->thumbnailCropH = $this->source_height;
                                return true;

                        } else {
                                $this->DebugMessage('$this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false) failed', __FILE__, __LINE__);
                        }

                        break;
                }

                if (!$this->gdimg_source) {
                        $this->DebugMessage('$this->gdimg_source is still empty', __FILE__, __LINE__);

                        $this->DebugMessage('ImageMagickThumbnailToGD() failed', __FILE__, __LINE__);

                        $imageHeader = '';
                        $gd_info = gd_info();
                        $GDreadSupport = false;
                        switch (@$this->getimagesizeinfo[2]) {
                                case 1:
                                        $imageHeader = 'Content-Type: image/gif';
                                        $GDreadSupport = (bool) @$gd_info['GIF Read Support'];
                                        break;
                                case 2:
                                        $imageHeader = 'Content-Type: image/jpeg';
                                        $GDreadSupport = (bool) @$gd_info['JPG Support'];
                                        break;
                                case 3:
                                        $imageHeader = 'Content-Type: image/png';
                                        $GDreadSupport = (bool) @$gd_info['PNG Support'];
                                        break;
                        }
                        if ($imageHeader) {
                                // cannot create image for whatever reason (maybe ImageCreateFromJPEG et al are not available?)
                                // and ImageMagick is not available either, no choice but to output original (not resized/modified) data and exit
                                if ($this->config_error_die_on_source_failure) {
                                        $errormessages = array();
                                        $errormessages[] = 'All attempts to create GD image source failed.';
                                        if ($this->fatalerror) {
                                                $errormessages[] = $this->fatalerror;
                                        }
                                        if ($this->issafemode) {
                                                $errormessages[] = 'Safe Mode enabled, therefore ImageMagick is unavailable. (disable Safe Mode if possible)';
                                        } elseif (!$this->ImageMagickVersion()) {
                                                $errormessages[] = 'ImageMagick is not installed (it is highly recommended that you install it).';
                                        }
                                        if ($this->SourceImageIsTooLarge($this->getimagesizeinfo[0], $this->getimagesizeinfo[1])) {
                                                $memory_get_usage = (function_exists('memory_get_usage') ? memory_get_usage() : 0);
                                                $errormessages[] = 'Source image is too large ('.$this->getimagesizeinfo[0].'x'.$this->getimagesizeinfo[1].' = '.number_format($this->getimagesizeinfo[0] * $this->getimagesizeinfo[1] / 1000000, 1).'Mpx, max='.number_format($this->config_max_source_pixels / 1000000, 1).'Mpx) for GD creation (either install ImageMagick or increase PHP memory_limit to at least '.ceil(($memory_get_usage + (5 * $this->getimagesizeinfo[0] * $this->getimagesizeinfo[1])) / 1048576).'M).';
                                        } elseif (!$GDreadSupport) {
                                                $errormessages[] = 'GD does not have read support for "'.$imageHeader.'".';
                                        } else {
                                                $errormessages[] = 'Source image probably corrupt.';
                                        }
                                        $this->ErrorImage(implode("\n", $errormessages));

                                } else {
                                        $this->DebugMessage('All attempts to create GD image source failed ('.(ini_get('safe_mode') ? 'Safe Mode enabled, ImageMagick unavailable and source image probably too large for GD': ($GDreadSupport ? 'source image probably corrupt' : 'GD does not have read support for "'.$imageHeader.'"')).'), cannot generate thumbnail');
                                        //$this->DebugMessage('All attempts to create GD image source failed ('.($GDreadSupport ? 'source image probably corrupt' : 'GD does not have read support for "'.$imageHeader.'"').'), outputing raw image', __FILE__, __LINE__);
                                        //if (!$this->phpThumbDebug) {
                                        //      header($imageHeader);
                                        //      echo $this->rawImageData;
                                        //      exit;
                                        //}
                                        return false;
                                }
                        }

                        //switch (substr($this->rawImageData, 0, 2)) {
                        //      case 'BM':
                        switch (@$this->getimagesizeinfo[2]) {
                                case 6:
                                        ob_start();
                                        if (!@include_once(dirname(__FILE__).'/phpthumb.bmp.php')) {
                                                ob_end_clean();
                                                return $this->ErrorImage('include_once('.dirname(__FILE__).'/phpthumb.bmp.php) failed');
                                        }
                                        ob_end_clean();
                                        if ($fp = @fopen($this->sourceFilename, 'rb')) {
                                                $this->rawImageData = '';
                                                while (!feof($fp)) {
                                                        $this->rawImageData .= fread($fp, 32768);
                                                }
                                                fclose($fp);
                                        }
                                        $phpthumb_bmp = new phpthumb_bmp();
                                        $this->gdimg_source = $phpthumb_bmp->phpthumb_bmp2gd($this->rawImageData, (phpthumb_functions::gd_version() >= 2.0));
                                        unset($phpthumb_bmp);
                                        if ($this->gdimg_source) {
                                                $this->DebugMessage('$phpthumb_bmp->phpthumb_bmp2gd() succeeded', __FILE__, __LINE__);
                                        } else {
                                                return $this->ErrorImage($this->ImageMagickVersion() ? 'ImageMagick failed on BMP source conversion' : 'phpthumb_bmp2gd() failed');
                                        }
                                        break;
                        //}
                        //switch (substr($this->rawImageData, 0, 4)) {
                        //      case 'II'."\x2A\x00":
                        //      case 'MM'."\x00\x2A":
                                case 7:
                                case 8:
                                        return $this->ErrorImage($this->ImageMagickVersion() ? 'ImageMagick failed on TIFF source conversion' : 'ImageMagick is unavailable and phpThumb() does not support TIFF source images without it');
                                        break;

                                //case "\xD7\xCD\xC6\x9A":
                                //      return $this->ErrorImage($this->ImageMagickVersion() ? 'ImageMagick failed on WMF source conversion' : 'ImageMagick is unavailable and phpThumb() does not support WMF source images without it');
                                //      break;
                        }

                        if (!$this->gdimg_source) {
                                $HeaderFourBytes = '';
                                if ($this->rawImageData) {
                                        $HeaderFourBytes = substr($this->rawImageData, 0, 4);
                                } elseif ($this->sourceFilename) {
                                        if ($fp = @fopen($this->sourceFilename, 'rb')) {
                                                $HeaderFourBytes = fread($fp, 4);
                                                fclose($fp);
                                        } else {
                                                return $this->ErrorImage('failed to open "'.$this->sourceFilename.'" SourceImageToGD() ['.__LINE__.']');
                                        }
                                } else {
                                        return $this->ErrorImage('Unable to create image, neither filename nor image data suppplied in SourceImageToGD() ['.__LINE__.']');
                                }
                                if (!$this->ImageMagickVersion() && !phpthumb_functions::gd_version()) {
                                        return $this->ErrorImage('Neither GD nor ImageMagick seem to be installed on this server. At least one (preferably GD), or better both, MUST be installed for phpThumb to work.');
                                } elseif ($HeaderFourBytes == "\xD7\xCD\xC6\x9A") { // WMF
                                        return $this->ErrorImage($this->ImageMagickVersion() ? 'ImageMagick failed on WMF source conversion' : 'ImageMagick is unavailable and phpThumb() does not support WMF source images without it');
                                } elseif ($HeaderFourBytes == '%PDF') { // "%PDF"
                                        return $this->ErrorImage($this->ImageMagickVersion() ? 'ImageMagick and GhostScript are both required for PDF source images; GhostScript may not be properly configured' : 'ImageMagick and/or GhostScript are unavailable and phpThumb() does not support PDF source images without them');
                                } elseif (substr($HeaderFourBytes, 0, 3) == "\xFF\xD8\xFF") { // JPEG
                                        return $this->ErrorImage('Image (JPEG) is too large for PHP-GD memory_limit, please install ImageMagick or increase php.ini memory_limit setting');
                                } elseif ($HeaderFourBytes == '%PNG') { // "%PNG"
                                        return $this->ErrorImage('Image (PNG) is too large for PHP-GD memory_limit, please install ImageMagick or increase php.ini memory_limit setting');
                                } elseif (substr($HeaderFourBytes, 0, 3) == 'GIF') { // GIF
                                        return $this->ErrorImage('Image (GIF) is too large for PHP-GD memory_limit, please install ImageMagick or increase php.ini memory_limit setting');
                                }
                                return $this->ErrorImage('Unknown image type identified by "'.$HeaderFourBytes.'" ('.phpthumb_functions::HexCharDisplay($HeaderFourBytes).') in SourceImageToGD() ['.__LINE__.']');
                        }
                }

                if (!$this->gdimg_source) {
                        if ($gdimg_exif_temp = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false)) {
                                $this->DebugMessage('All other attempts failed, but successfully using EXIF thumbnail as source image', __FILE__, __LINE__);
                                $this->gdimg_source = $gdimg_exif_temp;
                                // override allow-enlarging setting if EXIF thumbnail is the only source available
                                // otherwise thumbnails larger than the EXIF thumbnail will be created at EXIF size
                                $this->aoe = true;
                                return true;
                        }
                        return false;
                }

                $this->source_width  = ImageSX($this->gdimg_source);
                $this->source_height = ImageSY($this->gdimg_source);
                return true;
        }


        function phpThumbDebugVarDump($var) {
                if (is_null($var)) {
                        return 'NULL';
                } elseif (is_bool($var)) {
                        return ($var ? 'TRUE' : 'FALSE');
                } elseif (is_string($var)) {
                        return 'string('.strlen($var).')'.str_repeat(' ', max(0, 3 - strlen(strlen($var)))).' "'.$var.'"';
                } elseif (is_int($var)) {
                        return 'integer     '.$var;
                } elseif (is_float($var)) {
                        return 'float       '.$var;
                } elseif (is_array($var)) {
                        ob_start();
                        var_dump($var);
                        $vardumpoutput = ob_get_contents();
                        ob_end_clean();
                        return strtr($vardumpoutput, "\n\r\t", '   ');
                }
                return gettype($var);
        }

        function phpThumbDebug($level='') {
                if ($level && ($this->phpThumbDebug !== $level)) {
                        return true;
                }
                if ($this->config_disable_debug) {
                        return $this->ErrorImage('phpThumbDebug disabled');
                }

                $FunctionsExistance  = array('exif_thumbnail', 'gd_info', 'image_type_to_mime_type', 'GetImageSize', 'ImageCopyResampled', 'ImageCopyResized', 'ImageCreate', 'ImageCreateFromString', 'ImageCreateTrueColor', 'ImageIsTrueColor', 'ImageRotate', 'ImageTypes', 'version_compare', 'ImageCreateFromGIF', 'ImageCreateFromJPEG', 'ImageCreateFromPNG', 'ImageCreateFromWBMP', 'ImageCreateFromXBM', 'ImageCreateFromXPM', 'ImageCreateFromString', 'ImageCreateFromGD', 'ImageCreateFromGD2', 'ImageCreateFromGD2Part', 'ImageJPEG', 'ImageGIF', 'ImagePNG', 'ImageWBMP');
                $ParameterNames      = array('src', 'new', 'w', 'h', 'f', 'q', 'sx', 'sy', 'sw', 'sh', 'far', 'bg', 'bc', 'file', 'goto', 'err', 'xto', 'ra', 'ar', 'aoe', 'iar', 'maxb');
                $ConfigVariableNames = array('document_root', 'temp_directory', 'output_format', 'output_maxwidth', 'output_maxheight', 'error_message_image_default', 'error_bgcolor', 'error_textcolor', 'error_fontsize', 'error_die_on_error', 'error_silent_die_on_error', 'error_die_on_source_failure', 'nohotlink_enabled', 'nohotlink_valid_domains', 'nohotlink_erase_image', 'nohotlink_text_message', 'nooffsitelink_enabled', 'nooffsitelink_valid_domains', 'nooffsitelink_require_refer', 'nooffsitelink_erase_image', 'nooffsitelink_text_message', 'high_security_enabled', 'allow_src_above_docroot', 'allow_src_above_phpthumb', 'max_source_pixels', 'use_exif_thumbnail_for_speed', 'border_hexcolor', 'background_hexcolor', 'ttf_directory', 'disable_pathinfo_parsing', 'disable_imagecopyresampled');
                $OtherVariableNames  = array('phpThumbDebug', 'thumbnailQuality', 'thumbnailFormat', 'gdimg_output', 'gdimg_source', 'sourceFilename', 'source_width', 'source_height', 'thumbnailCropX', 'thumbnailCropY', 'thumbnailCropW', 'thumbnailCropH', 'exif_thumbnail_width', 'exif_thumbnail_height', 'exif_thumbnail_type', 'thumbnail_width', 'thumbnail_height', 'thumbnail_image_width', 'thumbnail_image_height');

                $DebugOutput = array();
                $DebugOutput[] = 'phpThumb() version          = '.$this->phpthumb_version;
                $DebugOutput[] = 'phpversion()                = '.@phpversion();
                $DebugOutput[] = 'PHP_OS                      = '.PHP_OS;
                $DebugOutput[] = '$_SERVER[SERVER_SOFTWARE]   = '.@$_SERVER['SERVER_SOFTWARE'];
                $DebugOutput[] = '__FILE__                    = '.__FILE__;
                $DebugOutput[] = 'realpath(.)                 = '.@realpath('.');
                $DebugOutput[] = '$_SERVER[PHP_SELF]          = '.@$_SERVER['PHP_SELF'];
                $DebugOutput[] = '$_SERVER[HOST_NAME]         = '.@$_SERVER['HOST_NAME'];
                $DebugOutput[] = '$_SERVER[HTTP_REFERER]      = '.@$_SERVER['HTTP_REFERER'];
                $DebugOutput[] = '$_SERVER[QUERY_STRING]      = '.@$_SERVER['QUERY_STRING'];
                $DebugOutput[] = '$_SERVER[PATH_INFO]         = '.@$_SERVER['PATH_INFO'];
                $DebugOutput[] = '$_SERVER[DOCUMENT_ROOT]     = '.@$_SERVER['DOCUMENT_ROOT'];
                $DebugOutput[] = 'getenv(DOCUMENT_ROOT)       = '.@getenv('DOCUMENT_ROOT');
                $DebugOutput[] = '';

                $DebugOutput[] = 'get_magic_quotes_gpc()         = '.$this->phpThumbDebugVarDump(@get_magic_quotes_gpc());
                $DebugOutput[] = 'get_magic_quotes_runtime()     = '.$this->phpThumbDebugVarDump(@get_magic_quotes_runtime());
                $DebugOutput[] = 'error_reporting()              = '.$this->phpThumbDebugVarDump(error_reporting());
                $DebugOutput[] = 'ini_get(error_reporting)       = '.$this->phpThumbDebugVarDump(@ini_get('error_reporting'));
                $DebugOutput[] = 'ini_get(display_errors)        = '.$this->phpThumbDebugVarDump(@ini_get('display_errors'));
                $DebugOutput[] = 'ini_get(allow_url_fopen)       = '.$this->phpThumbDebugVarDump(@ini_get('allow_url_fopen'));
                $DebugOutput[] = 'ini_get(disable_functions)     = '.$this->phpThumbDebugVarDump(@ini_get('disable_functions'));
                $DebugOutput[] = 'get_cfg_var(disable_functions) = '.$this->phpThumbDebugVarDump(@get_cfg_var('disable_functions'));
                $DebugOutput[] = 'ini_get(safe_mode)             = '.$this->phpThumbDebugVarDump(@ini_get('safe_mode'));
                $DebugOutput[] = 'ini_get(open_basedir)          = '.$this->phpThumbDebugVarDump(@ini_get('open_basedir'));
                $DebugOutput[] = 'ini_get(max_execution_time)    = '.$this->phpThumbDebugVarDump(@ini_get('max_execution_time'));
                $DebugOutput[] = 'ini_get(memory_limit)          = '.$this->phpThumbDebugVarDump(@ini_get('memory_limit'));
                $DebugOutput[] = 'get_cfg_var(memory_limit)      = '.$this->phpThumbDebugVarDump(@get_cfg_var('memory_limit'));
                $DebugOutput[] = 'memory_get_usage()             = '.(function_exists('memory_get_usage') ? $this->phpThumbDebugVarDump(@memory_get_usage()) : 'n/a');
                $DebugOutput[] = '';

                $DebugOutput[] = '$this->config_prefer_imagemagick            = '.$this->phpThumbDebugVarDump($this->config_prefer_imagemagick);
                $DebugOutput[] = '$this->config_imagemagick_path              = '.$this->phpThumbDebugVarDump($this->config_imagemagick_path);
                $DebugOutput[] = '$this->ImageMagickWhichConvert()            = '.$this->ImageMagickWhichConvert();
                $IMpathUsed = ($this->config_imagemagick_path ? $this->config_imagemagick_path : $this->ImageMagickWhichConvert());
                $DebugOutput[] = '[actual ImageMagick path used]              = '.$this->phpThumbDebugVarDump($IMpathUsed);
                $DebugOutput[] = 'file_exists([actual ImageMagick path used]) = '.$this->phpThumbDebugVarDump(@file_exists($IMpathUsed));
                $DebugOutput[] = 'ImageMagickVersion(false)                   = '.$this->ImageMagickVersion(false);
                $DebugOutput[] = 'ImageMagickVersion(true)                    = '.$this->ImageMagickVersion(true);
                $DebugOutput[] = '';

                $DebugOutput[] = '$this->config_cache_directory               = '.$this->phpThumbDebugVarDump($this->config_cache_directory);
                $DebugOutput[] = '$this->config_cache_directory_depth         = '.$this->phpThumbDebugVarDump($this->config_cache_directory_depth);
                $DebugOutput[] = '$this->config_cache_disable_warning         = '.$this->phpThumbDebugVarDump($this->config_cache_disable_warning);
                $DebugOutput[] = '$this->config_cache_maxage                  = '.$this->phpThumbDebugVarDump($this->config_cache_maxage);
                $DebugOutput[] = '$this->config_cache_maxsize                 = '.$this->phpThumbDebugVarDump($this->config_cache_maxsize);
                $DebugOutput[] = '$this->config_cache_maxfiles                = '.$this->phpThumbDebugVarDump($this->config_cache_maxfiles);
                $DebugOutput[] = '$this->config_cache_force_passthru          = '.$this->phpThumbDebugVarDump($this->config_cache_force_passthru);
                $DebugOutput[] = '$this->cache_filename                       = '.$this->phpThumbDebugVarDump($this->cache_filename);
                $DebugOutput[] = 'is_readable($this->config_cache_directory)  = '.$this->phpThumbDebugVarDump(@is_readable($this->config_cache_directory));
                $DebugOutput[] = 'is_writable($this->config_cache_directory)  = '.$this->phpThumbDebugVarDump(@is_writable($this->config_cache_directory));
                $DebugOutput[] = 'is_readable($this->cache_filename)          = '.$this->phpThumbDebugVarDump(@is_readable($this->cache_filename));
                $DebugOutput[] = 'is_writable($this->cache_filename)          = '.(@file_exists($this->cache_filename) ? $this->phpThumbDebugVarDump(@is_writable($this->cache_filename)) : 'n/a');
                $DebugOutput[] = '';

                foreach ($ConfigVariableNames as $varname) {
                        $varname = 'config_'.$varname;
                        $value = $this->$varname;
                        $DebugOutput[] = '$this->'.str_pad($varname, 37, ' ', STR_PAD_RIGHT).' = '.$this->phpThumbDebugVarDump($value);
                }
                $DebugOutput[] = '';
                foreach ($OtherVariableNames as $varname) {
                        $value = $this->$varname;
                        $DebugOutput[] = '$this->'.str_pad($varname, 27, ' ', STR_PAD_RIGHT).' = '.$this->phpThumbDebugVarDump($value);
                }
                $DebugOutput[] = 'strlen($this->rawImageData)        = '.strlen(@$this->rawImageData);
                $DebugOutput[] = 'strlen($this->exif_thumbnail_data) = '.strlen(@$this->exif_thumbnail_data);
                $DebugOutput[] = '';

                foreach ($ParameterNames as $varname) {
                        $value = $this->$varname;
                        $DebugOutput[] = '$this->'.str_pad($varname, 4, ' ', STR_PAD_RIGHT).' = '.$this->phpThumbDebugVarDump($value);
                }
                $DebugOutput[] = '';

                foreach ($FunctionsExistance as $functionname) {
                        $DebugOutput[] = 'builtin_function_exists('.$functionname.')'.str_repeat(' ', 23 - strlen($functionname)).' = '.$this->phpThumbDebugVarDump(phpthumb_functions::builtin_function_exists($functionname));
                }
                $DebugOutput[] = '';

                $gd_info = gd_info();
                foreach ($gd_info as $key => $value) {
                        $DebugOutput[] = 'gd_info.'.str_pad($key, 34, ' ', STR_PAD_RIGHT).' = '.$this->phpThumbDebugVarDump($value);
                }
                $DebugOutput[] = '';

                $exif_info = phpthumb_functions::exif_info();
                foreach ($exif_info as $key => $value) {
                        $DebugOutput[] = 'exif_info.'.str_pad($key, 26, ' ', STR_PAD_RIGHT).' = '.$this->phpThumbDebugVarDump($value);
                }
                $DebugOutput[] = '';

                if ($ApacheLookupURIarray = phpthumb_functions::ApacheLookupURIarray(dirname(@$_SERVER['PHP_SELF']))) {
                        foreach ($ApacheLookupURIarray as $key => $value) {
                                $DebugOutput[] = 'ApacheLookupURIarray.'.str_pad($key, 15, ' ', STR_PAD_RIGHT).' = '.$this->phpThumbDebugVarDump($value);
                        }
                } else {
                                $DebugOutput[] = 'ApacheLookupURIarray() -- FAILED';
                }
                $DebugOutput[] = '';

                if (isset($_GET) && is_array($_GET)) {
                        foreach ($_GET as $key => $value) {
                                $DebugOutput[] = '$_GET['.$key.']'.str_repeat(' ', 30 - strlen($key)).'= '.$this->phpThumbDebugVarDump($value);
                        }
                }
                if (isset($_POST) && is_array($_POST)) {
                        foreach ($_POST as $key => $value) {
                                $DebugOutput[] = '$_POST['.$key.']'.str_repeat(' ', 29 - strlen($key)).'= '.$this->phpThumbDebugVarDump($value);
                        }
                }
                $DebugOutput[] = '';

                $DebugOutput[] = '$this->debugmessages:';
                foreach ($this->debugmessages as $errorstring) {
                        $DebugOutput[] = '  * '.$errorstring;
                }
                $DebugOutput[] = '';

                $DebugOutput[] = '$this->debugtiming:';
                foreach ($this->debugtiming as $timestamp => $timingstring) {
                        $DebugOutput[] = '  * '.$timestamp.' '.$timingstring;
                }
                $DebugOutput[] = '  * Total processing time: '.number_format(max(array_keys($this->debugtiming)) - min(array_keys($this->debugtiming)), 6);

                $this->f = (isset($_GET['f']) ? $_GET['f'] : $this->f); // debug modes 0-2 don't recognize text mode otherwise
                return $this->ErrorImage(implode("\n", $DebugOutput), 700, 500, true);
        }

        function FatalError($text) {
                if (is_null($this->fatalerror)) {
                        $this->fatalerror = $text;
                }
                return true;
        }

        function ErrorImage($text, $width=0, $height=0, $forcedisplay=false) {
                $width  = ($width  ? $width  : $this->config_error_image_width);
                $height = ($height ? $height : $this->config_error_image_height);

                $text = 'phpThumb() v'.$this->phpthumb_version."\n".'http://phpthumb.sourceforge.net'."\n\n".($this->config_disable_debug ? 'Error messages disabled' : $text);

                $this->FatalError($text);
                $this->DebugMessage($text, __FILE__, __LINE__);
                $this->purgeTempFiles();
                if ($this->phpThumbDebug && !$forcedisplay) {
                        return false;
                }
                if (!$this->config_error_die_on_error && !$forcedisplay) {
                        return false;
                }
                if ($this->config_error_silent_die_on_error) {
                        exit;
                }
                if ($this->err || $this->config_error_message_image_default) {
                        // Show generic custom error image instead of error message
                        // for use on production sites where you don't want debug messages
                        if (($this->err == 'showerror') || $this->phpThumbDebug) {
                                // fall through and actually show error message even if default error image is set
                        } else {
                                header('Location: '.($this->err ? $this->err : $this->config_error_message_image_default));
                                exit;
                        }
                }
                $this->setOutputFormat();
                if (!$this->thumbnailFormat || (phpthumb_functions::gd_version() < 1)) {
                        $this->thumbnailFormat = 'text';
                }
                if (@$this->thumbnailFormat == 'text') {
                        // bypass all GD functions and output text error message
                        if (!headers_sent()) {
                                header('Content-type: text/plain');
                                echo $text;
                        } else {
                                echo '<pre>'.htmlspecialchars($text).'</pre>';
                        }
                        exit;
                }

                $FontWidth  = ImageFontWidth($this->config_error_fontsize);
                $FontHeight = ImageFontHeight($this->config_error_fontsize);

                $LinesOfText = explode("\n", @wordwrap($text, floor($width / $FontWidth), "\n", true));
                $height = max($height, count($LinesOfText) * $FontHeight);

                $headers_file = '';
                $headers_line = '';
                if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.0', '>=') && headers_sent($headers_file, $headers_line)) {

                        echo "\n".'**Headers already sent in file "'.$headers_file.'" on line "'.$headers_line.'", dumping error message as text:**<br><pre>'."\n\n".$text."\n".'</pre>';

                } elseif (headers_sent()) {

                        echo "\n".'**Headers already sent, dumping error message as text:**<br><pre>'."\n\n".$text."\n".'</pre>';

                } elseif ($gdimg_error = ImageCreate($width, $height)) {

                        $background_color = phpthumb_functions::ImageHexColorAllocate($gdimg_error, $this->config_error_bgcolor,   true);
                        $text_color       = phpthumb_functions::ImageHexColorAllocate($gdimg_error, $this->config_error_textcolor, true);
                        ImageFilledRectangle($gdimg_error, 0, 0, $width, $height, $background_color);
                        $lineYoffset = 0;
                        foreach ($LinesOfText as $line) {
                                ImageString($gdimg_error, $this->config_error_fontsize, 2, $lineYoffset, $line, $text_color);
                                $lineYoffset += $FontHeight;
                        }
                        if (function_exists('ImageTypes')) {
                                $imagetypes = ImageTypes();
                                if ($imagetypes & IMG_PNG) {
                                        header('Content-Type: image/png');
                                        ImagePNG($gdimg_error);
                                } elseif ($imagetypes & IMG_GIF) {
                                        header('Content-Type: image/gif');
                                        ImageGIF($gdimg_error);
                                } elseif ($imagetypes & IMG_JPG) {
                                        header('Content-Type: image/jpeg');
                                        ImageJPEG($gdimg_error);
                                } elseif ($imagetypes & IMG_WBMP) {
                                        header('Content-Type: image/vnd.wap.wbmp');
                                        ImageWBMP($gdimg_error);
                                }
                        }
                        ImageDestroy($gdimg_error);

                }
                if (!headers_sent()) {
                        echo "\n".'**Failed to send graphical error image, dumping error message as text:**<br>'."\n\n".$text;
                }
                exit;
                return true;
        }

        function ImageCreateFromStringReplacement(&$RawImageData, $DieOnErrors=false) {
                // there are serious bugs in the non-bundled versions of GD which may cause
                // PHP to segfault when calling ImageCreateFromString() - avoid if at all possible
                // when not using a bundled version of GD2
                if (!phpthumb_functions::gd_version()) {
                        if ($DieOnErrors) {
                                if (!headers_sent()) {
                                        // base64-encoded error image in GIF format
                                        $ERROR_NOGD = 'R0lGODlhIAAgALMAAAAAABQUFCQkJDY2NkZGRldXV2ZmZnJycoaGhpSUlKWlpbe3t8XFxdXV1eTk5P7+/iwAAAAAIAAgAAAE/vDJSau9WILtTAACUinDNijZtAHfCojS4W5H+qxD8xibIDE9h0OwWaRWDIljJSkUJYsN4bihMB8th3IToAKs1VtYM75cyV8sZ8vygtOE5yMKmGbO4jRdICQCjHdlZzwzNW4qZSQmKDaNjhUMBX4BBAlmMywFSRWEmAI6b5gAlhNxokGhooAIK5o/pi9vEw4Lfj4OLTAUpj6IabMtCwlSFw0DCKBoFqwAB04AjI54PyZ+yY3TD0ss2YcVmN/gvpcu4TOyFivWqYJlbAHPpOntvxNAACcmGHjZzAZqzSzcq5fNjxFmAFw9iFRunD1epU6tsIPmFCAJnWYE0FURk7wJDA0MTKpEzoWAAskiAAA7';
                                        header('Content-Type: image/gif');
                                        echo base64_decode($ERROR_NOGD);
                                } else {
                                        echo '*** ERROR: No PHP-GD support available ***';
                                }
                                exit;
                        } else {
                                $this->DebugMessage('ImageCreateFromStringReplacement() failed: gd_version says "'.phpthumb_functions::gd_version().'"', __FILE__, __LINE__);
                                return false;
                        }
                }
                if (phpthumb_functions::gd_is_bundled()) {
                        $this->DebugMessage('ImageCreateFromStringReplacement() calling built-in ImageCreateFromString()', __FILE__, __LINE__);
                        return @ImageCreateFromString($RawImageData);
                }
                if ($this->issafemode) {
                        $this->DebugMessage('ImageCreateFromStringReplacement() failed: cannot create temp file in SAFE_MODE', __FILE__, __LINE__);
                        return false;
                }

                switch (substr($RawImageData, 0, 3)) {
                        case 'GIF':
                                $ICFSreplacementFunctionName = 'ImageCreateFromGIF';
                                break;
                        case "\xFF\xD8\xFF":
                                $ICFSreplacementFunctionName = 'ImageCreateFromJPEG';
                                break;
                        case "\x89".'PN':
                                $ICFSreplacementFunctionName = 'ImageCreateFromPNG';
                                break;
                        default:
                                $this->DebugMessage('ImageCreateFromStringReplacement() failed: unknown fileformat signature "'.phpthumb_functions::HexCharDisplay(substr($RawImageData, 0, 3)).'"', __FILE__, __LINE__);
                                return false;
                                break;
                }
                if ($tempnam = $this->phpThumb_tempnam()) {
                        if ($fp_tempnam = @fopen($tempnam, 'wb')) {
                                fwrite($fp_tempnam, $RawImageData);
                                fclose($fp_tempnam);
                                if (($ICFSreplacementFunctionName == 'ImageCreateFromGIF') && !function_exists($ICFSreplacementFunctionName)) {

                                        // Need to create from GIF file, but ImageCreateFromGIF does not exist
                                        ob_start();
                                        if (!@include_once(dirname(__FILE__).'/phpthumb.gif.php')) {
                                                $ErrorMessage = 'Failed to include required file "'.dirname(__FILE__).'/phpthumb.gif.php" in '.__FILE__.' on line '.__LINE__;
                                                $this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
                                        }
                                        ob_end_clean();
                                        // gif_loadFileToGDimageResource() cannot read from raw data, write to file first
                                        if ($tempfilename = $this->phpThumb_tempnam()) {
                                                if ($fp_tempfile = @fopen($tempfilename, 'wb')) {
                                                        fwrite($fp_tempfile, $RawImageData);
                                                        fclose($fp_tempfile);
                                                        $gdimg_source = gif_loadFileToGDimageResource($tempfilename);
                                                        $this->DebugMessage('gif_loadFileToGDimageResource('.$tempfilename.') completed', __FILE__, __LINE__);
                                                        $this->DebugMessage('deleting "'.$tempfilename.'"', __FILE__, __LINE__);
                                                        unlink($tempfilename);
                                                        return $gdimg_source;
                                                        break;
                                                } else {
                                                        $ErrorMessage = 'Failed to open tempfile in '.__FILE__.' on line '.__LINE__;
                                                        $this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
                                                }
                                        } else {
                                                $ErrorMessage = 'Failed to open generate tempfile name in '.__FILE__.' on line '.__LINE__;
                                                $this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
                                        }

                                } elseif (function_exists($ICFSreplacementFunctionName) && ($gdimg_source = @$ICFSreplacementFunctionName($tempnam))) {

                                        // great
                                        $this->DebugMessage($ICFSreplacementFunctionName.'('.$tempnam.') succeeded', __FILE__, __LINE__);
                                        $this->DebugMessage('deleting "'.$tempnam.'"', __FILE__, __LINE__);
                                        unlink($tempnam);
                                        return $gdimg_source;

                                } else {

                                        // GD functions not available, or failed to create image
                                        $this->DebugMessage($ICFSreplacementFunctionName.'('.$tempnam.') '.(function_exists($ICFSreplacementFunctionName) ? 'failed' : 'does not exist'), __FILE__, __LINE__);
                                        if (isset($_GET['phpThumbDebug'])) {
                                                $this->phpThumbDebug();
                                        }

                                }
                        } else {
                                $ErrorMessage = 'Failed to fopen('.$tempnam.', "wb") in '.__FILE__.' on line '.__LINE__."\n".'You may need to set $PHPTHUMB_CONFIG[temp_directory] in phpThumb.config.php';
                                if ($this->issafemode) {
                                        $ErrorMessage = 'ImageCreateFromStringReplacement() failed in '.__FILE__.' on line '.__LINE__.': cannot create temp file in SAFE_MODE';
                                }
                                $this->DebugMessage($ErrorMessage, __FILE__, __LINE__);
                        }
                        $this->DebugMessage('deleting "'.$tempnam.'"', __FILE__, __LINE__);
                        @unlink($tempnam);
                } else {
                        $ErrorMessage = 'Failed to generate phpThumb_tempnam() in '.__FILE__.' on line '.__LINE__."\n".'You may need to set $PHPTHUMB_CONFIG[temp_directory] in phpThumb.config.php';
                        if ($this->issafemode) {
                                $ErrorMessage = 'ImageCreateFromStringReplacement() failed in '.__FILE__.' on line '.__LINE__.': cannot create temp file in SAFE_MODE';
                        }
                }
                if ($DieOnErrors && $ErrorMessage) {
                        return $this->ErrorImage($ErrorMessage);
                }
                return false;
        }

        function ImageResizeFunction(&$dst_im, &$src_im, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH) {
                $this->DebugMessage('ImageResizeFunction($o, $s, '.$dstX.', '.$dstY.', '.$srcX.', '.$srcY.', '.$dstW.', '.$dstH.', '.$srcW.', '.$srcH.')', __FILE__, __LINE__);
                if (($dstW == $srcW) && ($dstH == $srcH)) {
                        return ImageCopy($dst_im, $src_im, $dstX, $dstY, $srcX, $srcY, $srcW, $srcH);
                }
                if (phpthumb_functions::gd_version() >= 2.0) {
                        if ($this->config_disable_imagecopyresampled) {
                                return phpthumb_functions::ImageCopyResampleBicubic($dst_im, $src_im, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH);
                        }
                        return ImageCopyResampled($dst_im, $src_im, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH);
                }
                return ImageCopyResized($dst_im, $src_im, $dstX, $dstY, $srcX, $srcY, $dstW, $dstH, $srcW, $srcH);
        }

        function InitializeTempDirSetting() {
                $this->config_temp_directory = realpath($this->config_temp_directory ? $this->config_temp_directory : (getenv('TMPDIR') ? getenv('TMPDIR') : getenv('TMP')));
                return true;
        }

        function phpThumb_tempnam() {
                $this->InitializeTempDirSetting();
                $tempnam = realpath(tempnam($this->config_temp_directory, 'pThumb'));
                $this->tempFilesToDelete[$tempnam] = $tempnam;
                $this->DebugMessage('phpThumb_tempnam() returning "'.$tempnam.'"', __FILE__, __LINE__);
                return $tempnam;
        }

        function DebugMessage($message, $file='', $line='') {
                $this->debugmessages[] = $message.($file ? ' in file "'.(basename($file) ? basename($file) : $file).'"' : '').($line ? ' on line '.$line : '');
                return true;
        }

        function DebugTimingMessage($message, $file='', $line='', $timestamp=0) {
                if (!$timestamp) {
                        $timestamp = array_sum(explode(' ', microtime()));
                }
                $this->debugtiming[number_format($timestamp, 6, '.', '')] = ': '.$message.($file ? ' in file "'.(basename($file) ? basename($file) : $file).'"' : '').($line ? ' on line '.$line : '');
                return true;
        }

}

?>