function ImprovedImageRotate(&$gdimg_source, $rotate_angle = 0, $config_background_hexcolor = 'FFFFFF', $bg = null)
{
while ($rotate_angle < 0) {
$rotate_angle += 360;
}
$rotate_angle = $rotate_angle % 360;
if ($rotate_angle != 0) {
$background_color = phpThumb_functions::ImageHexColorAllocate($gdimg_source, $config_background_hexcolor);
if (phpThumb_functions::gd_version() >= 2 && !$bg && $rotate_angle % 90) {
//$this->DebugMessage('Using alpha rotate', __FILE__, __LINE__);
if ($gdimg_rotate_mask = phpThumb_functions::ImageCreateFunction(ImageSX($gdimg_source), ImageSY($gdimg_source))) {
for ($i = 0; $i <= 255; $i++) {
$color_mask[$i] = ImageColorAllocate($gdimg_rotate_mask, $i, $i, $i);
}
ImageFilledRectangle($gdimg_rotate_mask, 0, 0, ImageSX($gdimg_rotate_mask), ImageSY($gdimg_rotate_mask), $color_mask[255]);
$imageX = ImageSX($gdimg_source);
$imageY = ImageSY($gdimg_source);
for ($x = 0; $x < $imageX; $x++) {
for ($y = 0; $y < $imageY; $y++) {
$pixelcolor = phpThumb_functions::GetPixelColor($gdimg_source, $x, $y);
ImageSetPixel($gdimg_rotate_mask, $x, $y, $color_mask[255 - round($pixelcolor['alpha'] * 255 / 127)]);
}
}
$gdimg_rotate_mask = ImageRotate($gdimg_rotate_mask, $rotate_angle, $color_mask[0]);
$gdimg_source = ImageRotate($gdimg_source, $rotate_angle, $background_color);
ImageAlphaBlending($gdimg_source, false);
ImageSaveAlpha($gdimg_source, true);
//$this->is_alpha = true;
$phpThumbFilters = new phpThumb_filters();
$phpThumbFilters->phpThumbObject = $this;
$phpThumbFilters->ApplyMask($gdimg_rotate_mask, $gdimg_source);
ImageDestroy($gdimg_rotate_mask);
} else {
//$this->DebugMessage('ImageCreateFunction() failed', __FILE__, __LINE__);
}
} else {
if (phpThumb_functions::gd_version() < 2) {
//$this->DebugMessage('Using non-alpha rotate because gd_version is "'.phpThumb_functions::gd_version().'"', __FILE__, __LINE__);
} elseif ($bg) {
//$this->DebugMessage('Using non-alpha rotate because $this->bg is "'.$bg.'"', __FILE__, __LINE__);
} elseif ($rotate_angle % 90) {
//$this->DebugMessage('Using non-alpha rotate because ($rotate_angle % 90) = "'.($rotate_angle % 90).'"', __FILE__, __LINE__);
} else {
//$this->DebugMessage('Using non-alpha rotate because $this->thumbnailFormat is "'.$this->thumbnailFormat.'"', __FILE__, __LINE__);
}
if (ImageColorTransparent($gdimg_source) >= 0) {
// ImageRotate() forgets all about an image's transparency and sets the transparent color to black
// To compensate, flood-fill the transparent color of the source image with the specified background color first
// then rotate and the colors should match
if (!function_exists('ImageIsTrueColor') || !ImageIsTrueColor($gdimg_source)) {
// convert paletted image to true-color before rotating to prevent nasty aliasing artifacts
//$this->source_width = ImageSX($gdimg_source);
//$this->source_height = ImageSY($gdimg_source);
$gdimg_newsrc = phpThumb_functions::ImageCreateFunction(ImageSX($gdimg_source), ImageSY($gdimg_source));
$background_color = phpThumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor);
ImageFilledRectangle($gdimg_newsrc, 0, 0, ImageSX($gdimg_source), ImageSY($gdimg_source), phpThumb_functions::ImageHexColorAllocate($gdimg_newsrc, $config_background_hexcolor));
ImageCopy($gdimg_newsrc, $gdimg_source, 0, 0, 0, 0, ImageSX($gdimg_source), ImageSY($gdimg_source));
ImageDestroy($gdimg_source);
unset($gdimg_source);
$gdimg_source = $gdimg_newsrc;
unset($gdimg_newsrc);
} else {
ImageColorSet($gdimg_source, ImageColorTransparent($gdimg_source), hexdec(substr($config_background_hexcolor, 0, 2)), hexdec(substr($config_background_hexcolor, 2, 2)), hexdec(substr($config_background_hexcolor, 4, 2)));
ImageColorTransparent($gdimg_source, -1);
}
}
$gdimg_source = ImageRotate($gdimg_source, $rotate_angle, $background_color);
}
}
return true;
}
die('failed to include_once("../phpThumb.functions.php")');
}
if (!(include_once '../phpThumb.class.php')) {
//ob_end_flush();
die('failed to include_once("../phpThumb.class.php")');
}
//ob_end_clean();
$phpThumb = new phpThumb();
if (include_once '../phpThumb.config.php') {
foreach ($PHPTHUMB_CONFIG as $key => $value) {
$keyname = 'config_' . $key;
$phpThumb->setParameter($keyname, $value);
}
}
$ServerInfo['gd_string'] = phpThumb_functions::gd_version(true);
$ServerInfo['gd_numeric'] = phpThumb_functions::gd_version(false);
$ServerInfo['im_version'] = $phpThumb->ImageMagickVersion();
$gd_info = gd_info();
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>phpThumb configuration analyzer</title>
<link rel="stylesheet" type="text/css" href="/style.css" title="style sheet">
</head>
<body style="background-color: #CCCCCC;">
This demo analyzes your settings (phpThumb.config.php and server/PHP) for <a href="http://phpThumb.sourceforge.net"><b>phpThumb()</b></a>.<br>
<br>
<table border="1">
static function ImageCreateFunction($x_size, $y_size)
{
$ImageCreateFunction = 'ImageCreate';
if (phpThumb_functions::gd_version() >= 2.0) {
$ImageCreateFunction = 'ImageCreateTrueColor';
}
if (!function_exists($ImageCreateFunction)) {
return phpThumb::ErrorImage($ImageCreateFunction . '() does not exist - no GD support?');
}
if ($x_size <= 0 || $y_size <= 0) {
return phpThumb::ErrorImage('Invalid image dimensions: ' . $ImageCreateFunction . '(' . $x_size . ', ' . $y_size . ')');
}
return $ImageCreateFunction(round($x_size), round($y_size));
}
