src = $src; $this->format = $format; if ($config['thumb_method'] == 'imagick') { $classname = 'ImageImagick'; } elseif ($config['thumb_method'] == 'convert' || $config['thumb_method'] == 'convert+gifsicle') { $classname = 'ImageConvert'; } else { $classname = 'Image' . strtoupper($this->format); if (!class_exists($classname)) { error('Unsupported file format: ' . $this->format); } } $this->image = new $classname($this); if (!$this->image->valid()) { $this->delete(); error($config['error']['invalidimg']); } $this->size = (object)array('width' => $this->image->_width(), 'height' => $this->image->_height()); if ($this->size->width < 1 || $this->size->height < 1) { $this->delete(); error($config['error']['invalidimg']); } } public function resize($extension, $max_width, $max_height) { global $config; $gifsicle = false; if ($config['thumb_method'] == 'imagick') { $classname = 'ImageImagick'; } elseif ($config['thumb_method'] == 'convert') { $classname = 'ImageConvert'; } elseif ($config['thumb_method'] == 'convert+gifsicle') { $classname = 'ImageConvert'; $gifsicle = true; } else { $classname = 'Image' . strtoupper($extension); if (!class_exists($classname)) { error('Unsupported file format: ' . $extension); } } $thumb = new $classname(false); $thumb->src = $this->src; $thumb->format = $this->format; $thumb->original_width = $this->size->width; $thumb->original_height = $this->size->height; $x_ratio = $max_width / $this->size->width; $y_ratio = $max_height / $this->size->height; if (($this->size->width <= $max_width) && ($this->size->height <= $max_height)) { $width = $this->size->width; $height = $this->size->height; } elseif (($x_ratio * $this->size->height) < $max_height) { $height = ceil($x_ratio * $this->size->height); $width = $max_width; } else { $width = ceil($y_ratio * $this->size->width); $height = $max_height; } if ($gifsicle) { $thumb->gifsicle = 1; } $thumb->_resize($this->image->image, $width, $height); return $thumb; } public function to($dst) { $this->image->to($dst); } public function delete() { file_unlink($this->src); } public function destroy() { $this->image->_destroy(); } } class ImageGD { public function GD_create() { $this->image = imagecreatetruecolor($this->width, $this->height); } public function GD_copyresampled() { imagecopyresampled($this->image, $this->original, 0, 0, 0, 0, $this->width, $this->height, $this->original_width, $this->original_height); } public function GD_resize() { $this->GD_create(); $this->GD_copyresampled(); } } class ImageBase extends ImageGD { public $image, $src, $original, $original_width, $original_height, $width, $height; public function valid() { return (bool)$this->image; } public function __construct($img) { if (method_exists($this, 'init')) $this->init(); if ($img !== false) { $this->src = $img->src; $this->from(); } } public function _width() { if (method_exists($this, 'width')) return $this->width(); // use default GD functions return imagesx($this->image); } public function _height() { if (method_exists($this, 'height')) return $this->height(); // use default GD functions return imagesy($this->image); } public function _destroy() { if (method_exists($this, 'destroy')) return $this->destroy(); // use default GD functions return imagedestroy($this->image); } public function _resize($original, $width, $height) { $this->original = &$original; $this->width = $width; $this->height = $height; if (method_exists($this, 'resize')) $this->resize(); else // use default GD functions $this->GD_resize(); } } class ImageImagick extends ImageBase { public function init() { $this->image = new Imagick(); $this->image->setBackgroundColor(new ImagickPixel('transparent')); } public function from() { try { $this->image->readImage($this->src); } catch(ImagickException $e) { // invalid image $this->image = false; } } public function to($src) { if (preg_match('/\.gif$/i', $src)) $this->image->writeImages($src, true); else $this->image->writeImage($src); } public function width() { return $this->image->getImageWidth(); } public function height() { return $this->image->getImageHeight(); } public function destroy() { return $this->image->destroy(); } public function resize() { global $config; if ($this->format == 'gif' && ($config['thumb_ext'] == 'gif' || $config['thumb_ext'] == '')) { $this->image = new Imagick(); $this->image->setFormat('gif'); $keep_frames = array(); for ($i = 0; $i < $this->original->getNumberImages(); $i += floor($this->original->getNumberImages() / $config['thumb_keep_animation_frames'])) $keep_frames[] = $i; $i = 0; $delay = 0; foreach ($this->original as $frame) { $delay += $frame->getImageDelay(); if (in_array($i, $keep_frames)) { // $frame->scaleImage($this->width, $this->height, false); $frame->sampleImage($this->width, $this->height); $frame->setImagePage($this->width, $this->height, 0, 0); $frame->setImageDelay($delay); $delay = 0; $this->image->addImage($frame->getImage()); } $i++; } } else { $this->image = clone $this->original; $this->image->scaleImage($this->width, $this->height, false); } } } class ImageConvert extends ImageBase { public $width, $height, $temp, $gifsicle; public function init() { global $config; $this->temp = false; } public function from() { $size = trim(shell_exec('identify -format "%w %h" ' . escapeshellarg($this->src . '[0]'))); if (preg_match('/^(\d+) (\d+)$/', $size, $m)) { $this->width = $m[1]; $this->height = $m[2]; $this->image = true; } else { // mark as invalid $this->image = false; } } public function to($src) { if (!$this->temp) { // $config['redraw_image'] shell_exec('convert ' . escapeshellarg($this->src) . ' ' . escapeshellarg($src)); } else { rename($this->temp, $src); chmod($src, 0664); } } public function width() { return $this->width; } public function height() { return $this->height; } public function destroy() { @unlink($this->temp); $this->temp = false; } public function resize() { global $config; if ($this->temp) { // remove old $this->destroy(); } $this->temp = tempnam($config['tmp'], 'imagick'); $quality = $config['thumb_quality'] * 10; if ($this->format == 'gif' && ($config['thumb_ext'] == 'gif' || $config['thumb_ext'] == '') && $config['thumb_keep_animation_frames'] > 1) { if ($this->gifsicle) { if (shell_exec("gifsicle --unoptimize -O2 --resize {$this->width}x{$this->height} " . escapeshellarg($this->src . '') . " " . escapeshellarg($this->temp)) || !file_exists($this->temp)) error('Failed to resize image!'); } else { if (shell_exec("convert -background transparent -filter Point -sample {$this->width}x{$this->height} +antialias -quality {$quality} " . escapeshellarg($this->src . '') . " " . escapeshellarg($this->temp)) || !file_exists($this->temp)) error('Failed to resize image!'); } } else { if (shell_exec("convert -background transparent -flatten -filter Point -scale {$this->width}x{$this->height} +antialias -quality {$quality} " . escapeshellarg($this->src . '[0]') . " " . escapeshellarg($this->temp)) || !file_exists($this->temp)) error('Failed to resize image!'); } } } class ImagePNG extends ImageBase { public function from() { $this->image = @imagecreatefrompng($this->src); } public function to($src) { global $config; imagepng($this->image, $src, $config['thumb_quality']); } public function resize() { $this->GD_create(); imagecolortransparent($this->image, imagecolorallocatealpha($this->image, 0, 0, 0, 0)); imagesavealpha($this->image, true); imagealphablending($this->image, false); $this->GD_copyresampled(); } } class ImageGIF extends ImageBase { public function from() { $this->image = @imagecreatefromgif ($this->src); } public function to($src) { imagegif ($this->image, $src); } public function resize() { $this->GD_create(); imagecolortransparent($this->image, imagecolorallocatealpha($this->image, 0, 0, 0, 0)); imagesavealpha($this->image, true); $this->GD_copyresampled(); } } class ImageJPG extends ImageBase { public function from() { $this->image = @imagecreatefromjpeg($this->src); } public function to($src) { imagejpeg($this->image, $src); } } class ImageJPEG extends ImageJPG { } class ImageBMP extends ImageBase { public function from() { $this->image = @imagecreatefrombmp($this->src); } public function to($src) { imagebmp($this->image, $src); } } /*********************************************/ /* Fonction: imagecreatefrombmp */ /* Author: DHKold */ /* Contact: admin@dhkold.com */ /* Date: The 15th of June 2005 */ /* Version: 2.0B */ /*********************************************/ function imagecreatefrombmp($filename) { if (! $f1 = fopen($filename,"rb")) return FALSE; $FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1,14)); if ($FILE['file_type'] != 19778) return FALSE; $BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel'. '/Vcompression/Vsize_bitmap/Vhoriz_resolution'. '/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1,40)); $BMP['colors'] = pow(2,$BMP['bits_per_pixel']); if ($BMP['size_bitmap'] == 0) $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset']; $BMP['bytes_per_pixel'] = $BMP['bits_per_pixel']/8; $BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']); $BMP['decal'] = ($BMP['width']*$BMP['bytes_per_pixel']/4); $BMP['decal'] -= floor($BMP['width']*$BMP['bytes_per_pixel']/4); $BMP['decal'] = 4-(4*$BMP['decal']); if ($BMP['decal'] == 4) $BMP['decal'] = 0; $PALETTE = array(); if ($BMP['colors'] < 16777216) { $PALETTE = unpack('V'.$BMP['colors'], fread($f1,$BMP['colors']*4)); } $IMG = fread($f1,$BMP['size_bitmap']); $VIDE = chr(0); $res = imagecreatetruecolor($BMP['width'],$BMP['height']); $P = 0; $Y = $BMP['height']-1; while ($Y >= 0) { $X=0; while ($X < $BMP['width']) { if ($BMP['bits_per_pixel'] == 24) $COLOR = unpack("V",substr($IMG,$P,3).$VIDE); elseif ($BMP['bits_per_pixel'] == 16) { $COLOR = unpack("n",substr($IMG,$P,2)); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 8) { $COLOR = unpack("n",$VIDE.substr($IMG,$P,1)); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 4) { $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1)); if (($P*2)%2 == 0) $COLOR[1] = ($COLOR[1] >> 4) ; else $COLOR[1] = ($COLOR[1] & 0x0F); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } elseif ($BMP['bits_per_pixel'] == 1) { $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1)); if (($P*8)%8 == 0) $COLOR[1] = $COLOR[1] >>7; elseif (($P*8)%8 == 1) $COLOR[1] = ($COLOR[1] & 0x40)>>6; elseif (($P*8)%8 == 2) $COLOR[1] = ($COLOR[1] & 0x20)>>5; elseif (($P*8)%8 == 3) $COLOR[1] = ($COLOR[1] & 0x10)>>4; elseif (($P*8)%8 == 4) $COLOR[1] = ($COLOR[1] & 0x8)>>3; elseif (($P*8)%8 == 5) $COLOR[1] = ($COLOR[1] & 0x4)>>2; elseif (($P*8)%8 == 6) $COLOR[1] = ($COLOR[1] & 0x2)>>1; elseif (($P*8)%8 == 7) $COLOR[1] = ($COLOR[1] & 0x1); $COLOR[1] = $PALETTE[$COLOR[1]+1]; } else return FALSE; imagesetpixel($res,$X,$Y,$COLOR[1]); $X++; $P += $BMP['bytes_per_pixel']; } $Y--; $P+=$BMP['decal']; } fclose($f1); return $res; } function imagebmp(&$img, $filename='') { $widthOrig = imagesx($img); $widthFloor = ((floor($widthOrig/16))*16); $widthCeil = ((ceil($widthOrig/16))*16); $height = imagesy($img); $size = ($widthCeil*$height*3)+54; // Bitmap File Header $result = 'BM'; // header (2b) $result .= int_to_dword($size); // size of file (4b) $result .= int_to_dword(0); // reserved (4b) $result .= int_to_dword(54); // byte location in the file which is first byte of IMAGE (4b) // Bitmap Info Header $result .= int_to_dword(40); // Size of BITMAPINFOHEADER (4b) $result .= int_to_dword($widthCeil); // width of bitmap (4b) $result .= int_to_dword($height); // height of bitmap (4b) $result .= int_to_word(1); // biPlanes = 1 (2b) $result .= int_to_word(24); // biBitCount = {1 (mono) or 4 (16 clr ) or 8 (256 clr) or 24 (16 Mil)} (2b $result .= int_to_dword(0); // RLE COMPRESSION (4b) $result .= int_to_dword(0); // width x height (4b) $result .= int_to_dword(0); // biXPelsPerMeter (4b) $result .= int_to_dword(0); // biYPelsPerMeter (4b) $result .= int_to_dword(0); // Number of palettes used (4b) $result .= int_to_dword(0); // Number of important colour (4b) // is faster than chr() $arrChr = array(); for ($i=0; $i<256; $i++){ $arrChr[$i] = chr($i); } // creates image data $bgfillcolor = array('red'=>0, 'green'=>0, 'blue'=>0); // bottom to top - left to right - attention blue green red !!! $y=$height-1; for ($y2=0; $y2<$height; $y2++) { for ($x=0; $x<$widthFloor; ) { $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y)); $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; } for ($x=$widthFloor; $x<$widthCeil; $x++) { $rgb = ($x<$widthOrig) ? imagecolorsforindex($img, imagecolorat($img, $x, $y)) : $bgfillcolor; $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']]; } $y--; } // see imagegif if ($filename == '') { echo $result; } else { $file = fopen($filename, 'wb'); fwrite($file, $result); fclose($file); } } // imagebmp helpers function int_to_dword($n) { return chr($n & 255).chr(($n >> 8) & 255).chr(($n >> 16) & 255).chr(($n >> 24) & 255); } function int_to_word($n) { return chr($n & 255).chr(($n >> 8) & 255); }