function wppa_create_thumbnail($id, $use_source = true)
{
// Find file to make thumbnail from
$source_path = wppa_fix_poster_ext(wppa_get_source_path($id), $id);
// Use source if requested and available
if ($use_source) {
if (!wppa_switch('watermark_thumbs') && is_file($source_path)) {
$file = $source_path;
// Use sourcefile
} else {
$file = wppa_fix_poster_ext(wppa_get_photo_path($id), $id);
// Use photofile
}
// Non standard orientation files: never use source
$orient = wppa_get_exif_orientation($file);
if ($orient > '1') {
$file = wppa_fix_poster_ext(wppa_get_photo_path($id), $id);
// Use photofile
}
} else {
$file = wppa_fix_poster_ext(wppa_get_photo_path($id), $id);
// Use photofile
}
// Max side
$max_side = wppa_get_minisize();
// Check file
if (!file_exists($file)) {
return false;
}
// No file, fail
$img_attr = getimagesize($file);
if (!$img_attr) {
return false;
}
// Not an image, fail
// Retrieve aspect
$asp_attr = explode(':', wppa_opt('thumb_aspect'));
// Get output path
$thumbpath = wppa_get_thumb_path($id);
if (wppa_get_ext($thumbpath) == 'xxx') {
// Video poster
$thumbpath = wppa_strip_ext($thumbpath) . '.jpg';
}
// Source size
$src_size_w = $img_attr[0];
$src_size_h = $img_attr[1];
// Temp convert width if stereo
if (wppa_get_photo_item($id, 'stereo')) {
$src_size_w /= 2;
}
// Mime type and thumb type
$mime = $img_attr[2];
$type = $asp_attr[2];
// Source native aspect
$src_asp = $src_size_h / $src_size_w;
// Required aspect
if ($type == 'none') {
$dst_asp = $src_asp;
} else {
$dst_asp = $asp_attr[0] / $asp_attr[1];
}
// Convert back width if stereo
if (wppa_get_photo_item($id, 'stereo')) {
$src_size_w *= 2;
}
// Create the source image
switch ($mime) {
// mime type
case 1:
// gif
$temp = @imagecreatefromgif($file);
if ($temp) {
$src = imagecreatetruecolor($src_size_w, $src_size_h);
imagecopy($src, $temp, 0, 0, 0, 0, $src_size_w, $src_size_h);
imagedestroy($temp);
} else {
$src = false;
}
break;
case 2:
// jpeg
if (!function_exists('wppa_imagecreatefromjpeg')) {
wppa_log('Error', 'Function wppa_imagecreatefromjpeg does not exist.');
}
$src = @wppa_imagecreatefromjpeg($file);
break;
case 3:
// png
$src = @imagecreatefrompng($file);
break;
}
if (!$src) {
wppa_log('Error', 'Image file ' . $file . ' is corrupt while creating thmbnail');
return true;
}
// Compute the destination image size
if ($dst_asp < 1.0) {
// Landscape
$dst_size_w = $max_side;
$dst_size_h = round($max_side * $dst_asp);
} else {
// Portrait
$dst_size_w = round($max_side / $dst_asp);
$dst_size_h = $max_side;
}
// Create the ( empty ) destination image
$dst = imagecreatetruecolor($dst_size_w, $dst_size_h);
if ($mime == 3) {
// Png, save transparancy
imagealphablending($dst, false);
imagesavealpha($dst, true);
}
// Fill with the required color
$c = trim(strtolower(wppa_opt('bgcolor_thumbnail')));
if ($c != '#000000') {
$r = hexdec(substr($c, 1, 2));
$g = hexdec(substr($c, 3, 2));
$b = hexdec(substr($c, 5, 2));
$color = imagecolorallocate($dst, $r, $g, $b);
if ($color === false) {
wppa_log('Err', 'Unable to set background color to: ' . $r . ', ' . $g . ', ' . $b . ' in wppa_create_thumbnail');
} else {
imagefilledrectangle($dst, 0, 0, $dst_size_w, $dst_size_h, $color);
}
}
// Switch on what we have to do
switch ($type) {
case 'none':
// Use aspect from fullsize image
$src_x = 0;
$src_y = 0;
$src_w = $src_size_w;
$src_h = $src_size_h;
$dst_x = 0;
$dst_y = 0;
$dst_w = $dst_size_w;
$dst_h = $dst_size_h;
break;
case 'clip':
// Clip image to given aspect ratio
if ($src_asp < $dst_asp) {
// Source image more landscape than destination
$dst_x = 0;
$dst_y = 0;
$dst_w = $dst_size_w;
$dst_h = $dst_size_h;
$src_x = round(($src_size_w - $src_size_h / $dst_asp) / 2);
$src_y = 0;
$src_w = round($src_size_h / $dst_asp);
$src_h = $src_size_h;
} else {
$dst_x = 0;
$dst_y = 0;
$dst_w = $dst_size_w;
$dst_h = $dst_size_h;
$src_x = 0;
$src_y = round(($src_size_h - $src_size_w * $dst_asp) / 2);
$src_w = $src_size_w;
$src_h = round($src_size_w * $dst_asp);
}
break;
case 'padd':
// Padd image to given aspect ratio
if ($src_asp < $dst_asp) {
// Source image more landscape than destination
$dst_x = 0;
$dst_y = round(($dst_size_h - $dst_size_w * $src_asp) / 2);
$dst_w = $dst_size_w;
$dst_h = round($dst_size_w * $src_asp);
$src_x = 0;
$src_y = 0;
$src_w = $src_size_w;
$src_h = $src_size_h;
} else {
$dst_x = round(($dst_size_w - $dst_size_h / $src_asp) / 2);
$dst_y = 0;
$dst_w = round($dst_size_h / $src_asp);
$dst_h = $dst_size_h;
$src_x = 0;
$src_y = 0;
$src_w = $src_size_w;
$src_h = $src_size_h;
}
break;
default:
// Not implemented
return false;
}
// Copy left half if stereo
if (wppa_get_photo_item($id, 'stereo')) {
$src_w /= 2;
}
// Do the copy
imagecopyresampled($dst, $src, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
// Save the thumb
$thumbpath = wppa_strip_ext($thumbpath);
switch ($mime) {
// mime type
case 1:
$full_thumbpath = $thumbpath . '.gif';
imagegif($dst, $full_thumbpath);
break;
case 2:
$full_thumbpath = $thumbpath . '.jpg';
imagejpeg($dst, $full_thumbpath, wppa_opt('jpeg_quality'));
break;
case 3:
$full_thumbpath = $thumbpath . '.png';
imagepng($dst, $full_thumbpath, 6);
break;
}
// Cleanup
imagedestroy($src);
imagedestroy($dst);
// Make sure file is accessable
wppa_chmod($full_thumbpath);
// Optimize
wppa_optimize_image_file($full_thumbpath);
// Compute and save sizes
wppa_get_thumbx($id, 'force');
// forces recalc x and y
return true;
}
function wppa_rotate($id, $ang)
{
global $wpdb;
// Check args
$err = '1';
if (!is_numeric($id) || !is_numeric($ang)) {
return $err;
}
// Get the ext
$err = '2';
$ext = $wpdb->get_var($wpdb->prepare('SELECT ext FROM ' . WPPA_PHOTOS . ' WHERE id = %s', $id));
if (!$ext) {
return $err;
}
// Get the image
$err = '3';
$file = wppa_fix_poster_ext(wppa_get_photo_path($id), $id);
if (!is_file($file)) {
return $err;
}
// Get the imgdetails
$err = '4';
$img = getimagesize($file);
if (!$img) {
return $err;
}
// Get the image
switch ($img[2]) {
case 1:
// gif
$err = '5';
$source = imagecreatefromgif($file);
break;
case 2:
// jpg
$err = '6';
$source = wppa_imagecreatefromjpeg($file);
break;
case 3:
// png
$err = '7';
$source = imagecreatefrompng($file);
break;
default:
// unsupported mimetype
$err = '10';
$source = false;
}
if (!$source) {
return $err;
}
// Rotate the image
$err = '11';
if ($ang == '360') {
if (!imageflip($source, IMG_FLIP_HORIZONTAL)) {
return $err;
}
$rotate = $source;
} else {
$rotate = imagerotate($source, $ang, 0);
if (!$rotate) {
return $err;
}
}
// Save the image
switch ($img[2]) {
case 1:
$err = '15';
$bret = imagegif($rotate, $file, 95);
break;
case 2:
$err = '16';
$bret = imagejpeg($rotate, $file);
break;
case 3:
$err = '17';
$bret = imagepng($rotate, $file);
break;
default:
$err = '20';
$bret = false;
}
if (!$bret) {
return $err;
}
// Destroy the source
imagedestroy($source);
// Destroy the result
imagedestroy($rotate);
// accessable
wppa_chmod($file);
// Optimized
wppa_optimize_image_file($file);
// Clear stored dimensions
wppa_update_photo(array('id' => $id, 'thumbx' => '0', 'thumby' => '0', 'photox' => '0', 'photoy' => '0'));
$err = '30';
// Recreate the thumbnail, do NOT use source: source can not be rotated
$bret = wppa_create_thumbnail($id, false);
if (!$bret) {
return $err;
}
// Return success
return false;
}
function wppa_add_watermark($id)
{
// Init
if (!wppa_switch('watermark_on')) {
return false;
}
// Watermarks off
// if ( wppa_is_video( $id ) ) return false; // Can not on a video
// Find the watermark file and location
$temp = wppa_get_water_file_and_pos($id);
$waterfile = $temp['file'];
if (!$waterfile) {
return false;
}
// an error has occurred
$waterpos = $temp['pos'];
// default
if (basename($waterfile) == '--- none ---') {
return false;
// No watermark this time
}
// Open the watermark file
$watersize = @getimagesize($waterfile);
if (!is_array($watersize)) {
return false;
}
// Not a valid picture file
$waterimage = imagecreatefrompng($waterfile);
if (empty($waterimage) or !$waterimage) {
wppa_dbg_msg('Watermark file ' . $waterfile . ' not found or corrupt');
return false;
// No image
}
imagealphablending($waterimage, false);
imagesavealpha($waterimage, true);
// Open the photo file
$file = wppa_get_photo_path($id);
if (wppa_is_video($id)) {
$file = wppa_fix_poster_ext($file, $id);
}
if (!is_file($file)) {
return false;
}
// File gone
$photosize = getimagesize($file);
if (!is_array($photosize)) {
return false;
// Not a valid photo
}
switch ($photosize[2]) {
case 1:
$tempimage = imagecreatefromgif($file);
$photoimage = imagecreatetruecolor($photosize[0], $photosize[1]);
imagecopy($photoimage, $tempimage, 0, 0, 0, 0, $photosize[0], $photosize[1]);
break;
case 2:
$photoimage = wppa_imagecreatefromjpeg($file);
break;
case 3:
$photoimage = imagecreatefrompng($file);
break;
}
if (empty($photoimage) or !$photoimage) {
return false;
}
// No image
$ps_x = $photosize[0];
$ps_y = $photosize[1];
$ws_x = $watersize[0];
$ws_y = $watersize[1];
$src_x = 0;
$src_y = 0;
if ($ws_x > $ps_x) {
$src_x = ($ws_x - $ps_x) / 2;
$ws_x = $ps_x;
}
if ($ws_y > $ps_y) {
$src_y = ($ws_y - $ps_y) / 2;
$ws_y = $ps_y;
}
$loy = substr($waterpos, 0, 3);
switch ($loy) {
case 'top':
$dest_y = 0;
break;
case 'cen':
$dest_y = ($ps_y - $ws_y) / 2;
break;
case 'bot':
$dest_y = $ps_y - $ws_y;
break;
default:
$dest_y = 0;
// should never get here
}
$lox = substr($waterpos, 3);
switch ($lox) {
case 'lft':
$dest_x = 0;
break;
case 'cen':
$dest_x = ($ps_x - $ws_x) / 2;
break;
case 'rht':
$dest_x = $ps_x - $ws_x;
break;
default:
$dest_x = 0;
// should never get here
}
$opacity = strpos($waterfile, '/temp/') === false ? intval(wppa_opt('watermark_opacity')) : intval(wppa_opt('watermark_opacity_text'));
wppa_imagecopymerge_alpha($photoimage, $waterimage, $dest_x, $dest_y, $src_x, $src_y, $ws_x, $ws_y, $opacity);
// Save the result
switch ($photosize[2]) {
case 1:
imagegif($photoimage, $file);
break;
case 2:
imagejpeg($photoimage, $file, wppa_opt('jpeg_quality'));
break;
case 3:
imagepng($photoimage, $file, 7);
break;
}
// accessable
wppa_chmod($file);
// Optimized
wppa_optimize_image_file($file);
// Cleanup
imagedestroy($photoimage);
imagedestroy($waterimage);
return true;
}
function wppa_create_stereo_image($id, $type, $glass)
{
static $f299;
static $f587;
static $f114;
// Init
if ($glass == 'rc') {
$glass = 'redcyan';
}
if (!is_array($f299)) {
$i = 0;
while ($i < 256) {
$f299[$i] = floor(0.299 * $i + 0.5);
$f587[$i] = floor(0.587 * $i + 0.5);
$f114[$i] = floor(0.114 * $i + 0.5);
$i++;
}
}
// Feature enabled?
if (!wppa_switch('enable_stereo')) {
return;
}
// Init.
$is_stereo = wppa_is_stereo($id);
if (!$is_stereo) {
return;
}
$stereodir = WPPA_UPLOAD_PATH . '/stereo';
if (!is_dir($stereodir)) {
wppa_mkdir($stereodir);
}
$fromfile = wppa_get_photo_path($id);
$tofile = wppa_get_stereo_path($id, $type, $glass);
$sizes = getimagesize($fromfile);
$width = $sizes['0'] / 2;
$height = $sizes['1'];
$fromimage = wppa_imagecreatefromjpeg($fromfile);
$toimage = imagecreatetruecolor($width, $height);
if ($is_stereo == 1) {
$offset1 = 0;
$offset2 = $width;
} else {
$offset1 = $width;
$offset2 = 0;
}
// Do the dirty work
switch ($type) {
case 'color':
for ($y = 0; $y < $height; $y++) {
for ($x = 0; $x < $width; $x++) {
$rgb1 = imagecolorat($fromimage, $x + $offset1, $y);
$r1 = $rgb1 >> 16 & 0xff;
$g1 = $rgb1 >> 8 & 0xff;
$b1 = $rgb1 & 0xff;
$rgb2 = imagecolorat($fromimage, $x + $offset2, $y);
$r2 = $rgb2 >> 16 & 0xff;
$g2 = $rgb2 >> 8 & 0xff;
$b2 = $rgb2 & 0xff;
// Red - Cyan glass
if ($glass == 'redcyan') {
$newpix = $r2 << 16 | $g1 << 8 | $b1;
} else {
$newpix = $r1 << 16 | $g2 << 8 | $b1;
}
imagesetpixel($toimage, $x, $y, $newpix);
}
}
imagejpeg($toimage, $tofile, wppa_opt('jpeg_quality'));
break;
case 'gray':
for ($y = 0; $y < $height; $y++) {
for ($x = 0; $x < $width; $x++) {
$rgb1 = imagecolorat($fromimage, $x + $offset1, $y);
$r1 = $rgb1 >> 16 & 0xff;
$g1 = $rgb1 >> 8 & 0xff;
$b1 = $rgb1 & 0xff;
$rgb2 = imagecolorat($fromimage, $x + $offset2, $y);
$r2 = $rgb2 >> 16 & 0xff;
$g2 = $rgb2 >> 8 & 0xff;
$b2 = $rgb2 & 0xff;
// Red - Cyan glass
if ($glass == 'redcyan') {
$r = $f299[$r2] + $f587[$g2] + $f114[$b2];
$g = $f299[$r1] + $f587[$g1] + $f114[$b1];
$b = $f299[$r1] + $f587[$g1] + $f114[$b1];
$newpix = $r << 16 | $g << 8 | $b;
} else {
$r = $f299[$r1] + $f587[$g1] + $f114[$b1];
$g = $f299[$r2] + $f587[$g2] + $f114[$b2];
$b = $f299[$r1] + $f587[$g1] + $f114[$b1];
$newpix = $r << 16 | $g << 8 | $b;
}
imagesetpixel($toimage, $x, $y, $newpix);
}
}
imagejpeg($toimage, $tofile, wppa_opt('jpeg_quality'));
break;
case 'true':
for ($y = 0; $y < $height; $y++) {
for ($x = 0; $x < $width; $x++) {
$rgb1 = imagecolorat($fromimage, $x + $offset1, $y);
$r1 = $rgb1 >> 16 & 0xff;
$g1 = $rgb1 >> 8 & 0xff;
$b1 = $rgb1 & 0xff;
$rgb2 = imagecolorat($fromimage, $x + $offset2, $y);
$r2 = $rgb2 >> 16 & 0xff;
$g2 = $rgb2 >> 8 & 0xff;
$b2 = $rgb2 & 0xff;
// Red - Cyan glass
if ($glass == 'redcyan') {
$r = $f299[$r1] + $f587[$g1] + $f114[$b1];
$g = 0;
$b = $f299[$r2] + $f587[$g2] + $f114[$b2];
$newpix = $r << 16 | $g << 8 | $b;
} else {
$r = $f299[$r2] + $f587[$g2] + $f114[$b2];
$g = $f299[$r1] + $f587[$g1] + $f114[$b1];
$b = 0;
$newpix = $r << 16 | $g << 8 | $b;
}
imagesetpixel($toimage, $x, $y, $newpix);
}
}
imagejpeg($toimage, $tofile, wppa_opt('jpeg_quality'));
break;
case 'halfcolor':
for ($y = 0; $y < $height; $y++) {
for ($x = 0; $x < $width; $x++) {
$rgb1 = imagecolorat($fromimage, $x + $offset1, $y);
$r1 = $rgb1 >> 16 & 0xff;
$g1 = $rgb1 >> 8 & 0xff;
$b1 = $rgb1 & 0xff;
$rgb2 = imagecolorat($fromimage, $x + $offset2, $y);
$r2 = $rgb2 >> 16 & 0xff;
$g2 = $rgb2 >> 8 & 0xff;
$b2 = $rgb2 & 0xff;
// Red - Cyan glass
if ($glass == 'redcyan') {
$r = $f299[$r1] + $f587[$g1] + $f114[$b1];
// $g = $g2;
// $b = $b2;
$newpix = $r << 16 | $g2 << 8 | $b2;
} else {
$r = $f299[$r2] + $f587[$g2] + $f114[$b2];
// $g = $g1;
// $b = $b2;
$r = ceil(min($r, 255));
$newpix = $r << 16 | $g1 << 8 | $b2;
}
imagesetpixel($toimage, $x, $y, $newpix);
}
}
imagejpeg($toimage, $tofile, wppa_opt('jpeg_quality'));
break;
case 'optimized':
for ($y = 0; $y < $height; $y++) {
for ($x = 0; $x < $width; $x++) {
$rgb1 = imagecolorat($fromimage, $x + $offset1, $y);
$r1 = $rgb1 >> 16 & 0xff;
$g1 = $rgb1 >> 8 & 0xff;
$b1 = $rgb1 & 0xff;
$rgb2 = imagecolorat($fromimage, $x + $offset2, $y);
$r2 = $rgb2 >> 16 & 0xff;
$g2 = $rgb2 >> 8 & 0xff;
$b2 = $rgb2 & 0xff;
// Red - Cyan glass
if ($glass == 'redcyan') {
$r = 0.7 * $g1 + 0.3 * $b1;
$g = $g2;
$b = $b2;
$r = ceil(min($r, 255));
$newpix = $r << 16 | $g << 8 | $b;
} else {
$r = 0.7 * $g2 + 0.3 * $b2;
$g = $g1;
$b = $b2;
$r = ceil(min($r, 255));
$newpix = $r << 16 | $g << 8 | $b;
}
imagesetpixel($toimage, $x, $y, $newpix);
}
}
imagejpeg($toimage, $tofile, wppa_opt('jpeg_quality'));
break;
case '_flat':
imagecopy($toimage, $fromimage, 0, 0, 0, 0, $width, $height);
imagejpeg($toimage, $tofile, wppa_opt('jpeg_quality'));
break;
default:
break;
}
// accessable
wppa_chmod($tofile);
// Optimized
wppa_optimize_image_file($tofile);
// Bump version
wppa_bump_photo_rev();
}