/**
* Attempt to resize file if the filesize is too large after an initial resize to max dimensions or the file is already within max dimensions but the filesize is too large
*
* @param bool Has the image already been resized once?
* @param bool Attempt a resize
*/
function fetch_best_resize(&$jpegconvert, $resize = true)
{
if (!$jpegconvert and $this->upload['filesize'] > $this->maxuploadsize and $resize and $this->image->is_valid_resize_type($this->imginfo[2])) {
// Linear Regression
switch ($this->registry->options['thumbquality']) {
case 65:
// No Sharpen
// $magicnumber = round(379.421 + .00348171 * $this->maxuploadsize);
// Sharpen
$magicnumber = round(277.652 + 0.00428902 * $this->maxuploadsize);
break;
case 85:
// No Sharpen
// $magicnumber = round(292.53 + .0027378 * $this-maxuploadsize);
// Sharpen
$magicnumber = round(189.939 + 0.00352439 * $this->maxuploadsize);
break;
case 95:
// No Sharpen
// $magicnumber = round(188.11 + .0022561 * $this->maxuploadsize);
// Sharpen
$magicnumber = round(159.146 + 0.00234146 * $this->maxuploadsize);
break;
default:
//75
// No Sharpen
// $magicnumber = round(328.415 + .00323415 * $this->maxuploadsize);
// Sharpen
$magicnumber = round(228.201 + 0.00396951 * $this->maxuploadsize);
}
$xratio = $this->imginfo[0] > $magicnumber ? $magicnumber / $this->imginfo[0] : 1;
$yratio = $this->imginfo[1] > $magicnumber ? $magicnumber / $this->imginfo[1] : 1;
if ($xratio > $yratio and $xratio != 1) {
$new_width = round($this->imginfo[0] * $xratio);
$new_height = round($this->imginfo[1] * $xratio);
} else {
$new_width = round($this->imginfo[0] * $yratio);
$new_height = round($this->imginfo[1] * $yratio);
}
if ($new_width == $this->imginfo[0] and $new_height == $this->imginfo[1]) {
// subtract one pixel so that requested size isn't the same as the image size
$new_width--;
$forceresize = false;
} else {
$forceresize = true;
}
$this->upload['resized'] = $this->image->fetch_thumbnail($this->upload['filename'], $this->upload['location'], $new_width, $new_height, $this->registry->options['thumbquality'], false, false, true, false);
if (empty($this->upload['resized']['filedata'])) {
if ($this->image->is_valid_thumbnail_extension(file_extension($this->upload['filename'])) and !empty($this->upload['resized']['imageerror']) and $this->registry->userinfo['permissions']['adminpermissions'] & $this->registry->bf_ugp_adminpermissions['cancontrolpanel']) {
if (($error = $this->image->fetch_error()) !== false and $this->registry->userinfo['permissions']['adminpermissions'] & $this->registry->bf_ugp_adminpermissions['cancontrolpanel']) {
$this->set_error('image_resize_failed_x', htmlspecialchars_uni($error));
return false;
} else {
$this->set_error($this->upload['resized']['imageerror']);
return false;
}
} else {
$this->set_error('upload_file_exceeds_forum_limit', vb_number_format($this->upload['filesize'], 1, true), vb_number_format($this->maxuploadsize, 1, true));
#$this->set_error('upload_exceeds_dimensions', $this->maxwidth, $this->maxheight, $this->imginfo[0], $this->imginfo[1]);
return false;
}
} else {
$jpegconvert = true;
}
}
if (!$jpegconvert and $this->upload['filesize'] > $this->maxuploadsize) {
$this->set_error('upload_file_exceeds_forum_limit', vb_number_format($this->upload['filesize'], 1, true), vb_number_format($this->maxuploadsize, 1, true));
return false;
} else {
if ($jpegconvert and $this->upload['resized']['filesize'] and ($this->upload['resized']['filesize'] > $this->maxuploadsize or $forceresize)) {
$ratio = $this->maxuploadsize / $this->upload['resized']['filesize'];
$newwidth = $this->upload['resized']['width'] * sqrt($ratio);
$newheight = $this->upload['resized']['height'] * sqrt($ratio);
if ($newwidth > $this->imginfo[0]) {
$newwidth = $this->imginfo[0] - 1;
}
if ($newheight > $this->imginfo[1]) {
$newheight = $this->imginfo[1] - 1;
}
$this->upload['resized'] = $this->image->fetch_thumbnail($this->upload['filename'], $this->upload['location'], $newwidth, $newheight, $this->registry->options['thumbquality'], false, false, true, false);
if (empty($this->upload['resized']['filedata'])) {
if (!empty($this->upload['resized']['imageerror']) and $this->registry->userinfo['permissions']['adminpermissions'] & $this->registry->bf_ugp_adminpermissions['cancontrolpanel']) {
if (($error = $this->image->fetch_error()) !== false and $this->registry->userinfo['permissions']['adminpermissions'] & $this->registry->bf_ugp_adminpermissions['cancontrolpanel']) {
$this->set_error('image_resize_failed_x', htmlspecialchars_uni($error));
return false;
} else {
$this->set_error($this->upload['resized']['imageerror']);
return false;
}
} else {
$this->set_error('upload_file_exceeds_forum_limit', vb_number_format($this->upload['filesize'], 1, true), vb_number_format($this->maxuploadsize, 1, true));
#$this->set_error('upload_exceeds_dimensions', $this->maxwidth, $this->maxheight, $this->imginfo[0], $this->imginfo[1]);
return false;
}
} else {
$jpegconvert = true;
}
}
}
return true;
}