function resize($source_name, $width = "", $height = "", $save_name = "")
{
$resource = NewMagickWand();
MagickReadImage($resource, $source_name);
$src_image_x = MagickGetImageWidth($resource);
$src_image_y = MagickGetImageHeight($resource);
$src_image_scale = $src_image_x / $src_image_y;
if ($width && $height) {
$new_image_x = $width;
$new_image_y = $height;
} else {
if ($width) {
$new_image_x = $width;
$new_image_y = $new_image_x * ($src_image_y / $src_image_x);
} else {
$new_image_y = $height;
$new_image_x = $new_image_y * ($src_image_x / $src_image_y);
}
}
MagickResizeImage($resource, $new_image_x, $new_image_y, MW_BoxFilter, 1);
if ($save_name) {
MagickWriteImage($resource, $save_name);
} else {
header('Content-Type: image/jpeg');
MagickEchoImageBlob($resource);
}
DestroymagickWand($resource);
}
/**
* 获取图片内容
*/
public function getContent()
{
ob_start();
MagickEchoImageBlob(self::$resource);
$content = ob_get_contents();
ob_end_clean();
return $content;
}
public function generateImg($img, $desFile = "")
{
MagickCommentImage($img, "Image Creator (MagickWand) By Windy2000");
$type = MagickGetImageFormat($img);
$frame_count = MagickGetNumberImages($img);
if (empty($type)) {
$type = $frame_count > 1 ? "GIF" : "JPG";
}
if (strpos("tile,gradient,caption,label,logo,netscape,rose", strtolower($type)) !== false) {
$type = "PNG";
}
MagickSetFormat($img, $type);
if (empty($desFile)) {
//header("Content-Type: ".MagickGetMimeType($img));
if ($frame_count > 1) {
MagickEchoImagesBlob($img);
} else {
MagickEchoImageBlob($img);
}
} else {
if ($frame_count > 1) {
MagickWriteImages($img, $desFile, MagickTrue);
} else {
MagickWriteImage($img, $desFile);
}
}
if (WandHasException($img)) {
$this->Error($img);
}
$result = MagickGetExceptionType($img);
DestroyMagickWand($img);
return $result;
}
function savefile($src_image_type, $src_image)
{
if ($this->save_file) {
MagickWriteImage($src_image, $this->save_file);
} else {
switch ($src_image_type) {
case 1:
header("Content-type: image/gif");
MagickEchoImageBlob($src_image);
break;
case 2:
header("Content-type: image/jpeg");
MagickEchoImageBlob($src_image);
break;
case 3:
header("Content-type: image/png");
MagickEchoImageBlob($src_image);
break;
case 6:
header("Content-type: image/bmp");
MagickEchoImageBlob($src_image);
break;
default:
header("Content-type: image/jpeg");
MagickEchoImageBlob($src_image);
break;
}
}
}