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https://github.com/vichan-devel/vichan.git
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Merge pull request #665 from Zankaria/remove-bmp
Remove the custom BMP polyfill.
This commit is contained in:
commit
0e2795d355
@ -10,7 +10,7 @@ class Image {
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public $src, $format, $image, $size;
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public function __construct($src, $format = false, $size = false) {
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global $config;
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$this->src = $src;
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$this->format = $format;
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@ -24,21 +24,21 @@ class Image {
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error(_('Unsupported file format: ') . $this->format);
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}
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}
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$this->image = new $classname($this, $size);
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if (!$this->image->valid()) {
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$this->delete();
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error($config['error']['invalidimg']);
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}
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$this->size = (object)array('width' => $this->image->_width(), 'height' => $this->image->_height());
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if ($this->size->width < 1 || $this->size->height < 1) {
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$this->delete();
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error($config['error']['invalidimg']);
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}
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}
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public function resize($extension, $max_width, $max_height) {
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global $config;
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@ -62,16 +62,16 @@ class Image {
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error(_('Unsupported file format: ') . $extension);
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}
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}
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$thumb = new $classname(false);
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$thumb->src = $this->src;
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$thumb->format = $this->format;
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$thumb->original_width = $this->size->width;
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$thumb->original_height = $this->size->height;
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$x_ratio = $max_width / $this->size->width;
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$y_ratio = $max_height / $this->size->height;
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if (($this->size->width <= $max_width) && ($this->size->height <= $max_height)) {
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$width = $this->size->width;
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$height = $this->size->height;
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@ -82,16 +82,16 @@ class Image {
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$width = ceil($y_ratio * $this->size->width);
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$height = $max_height;
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}
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$thumb->_resize($this->image->image, $width, $height);
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return $thumb;
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}
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public function to($dst) {
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$this->image->to($dst);
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}
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public function delete() {
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file_unlink($this->src);
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}
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@ -114,26 +114,26 @@ class ImageGD {
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}
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class ImageBase extends ImageGD {
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public $image, $src, $original, $original_width, $original_height, $width, $height;
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public $image, $src, $original, $original_width, $original_height, $width, $height;
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public function valid() {
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return (bool)$this->image;
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}
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public function __construct($img, $size = false) {
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if (method_exists($this, 'init'))
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$this->init();
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if ($size && $size[0] > 0 && $size[1] > 0) {
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$this->width = $size[0];
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$this->height = $size[1];
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}
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if ($img !== false) {
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$this->src = $img->src;
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$this->from();
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}
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}
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public function _width() {
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if (method_exists($this, 'width'))
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return $this->width();
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@ -156,7 +156,7 @@ class ImageBase extends ImageGD {
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$this->original = &$original;
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$this->width = $width;
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$this->height = $height;
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if (method_exists($this, 'resize'))
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$this->resize();
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else
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@ -199,31 +199,31 @@ class ImageImagick extends ImageBase {
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}
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public function resize() {
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global $config;
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if ($this->format == 'gif' && ($config['thumb_ext'] == 'gif' || $config['thumb_ext'] == '')) {
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$this->image = new Imagick();
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$this->image->setFormat('gif');
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$keep_frames = array();
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for ($i = 0; $i < $this->original->getNumberImages(); $i += floor($this->original->getNumberImages() / $config['thumb_keep_animation_frames']))
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$keep_frames[] = $i;
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$i = 0;
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$delay = 0;
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foreach ($this->original as $frame) {
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$delay += $frame->getImageDelay();
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if (in_array($i, $keep_frames)) {
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// $frame->scaleImage($this->width, $this->height, false);
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$frame->sampleImage($this->width, $this->height);
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$frame->setImagePage($this->width, $this->height, 0, 0);
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$frame->setImageDelay($delay);
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$delay = 0;
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$this->image->addImage($frame->getImage());
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}
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$i++;
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}
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}
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} else {
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$this->image = clone $this->original;
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$this->image->scaleImage($this->width, $this->height, false);
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@ -234,15 +234,15 @@ class ImageImagick extends ImageBase {
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class ImageConvert extends ImageBase {
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public $width, $height, $temp, $gm = false, $gifsicle = false;
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public function init() {
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global $config;
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if ($config['thumb_method'] == 'gm' || $config['thumb_method'] == 'gm+gifsicle')
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$this->gm = true;
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if ($config['thumb_method'] == 'convert+gifsicle' || $config['thumb_method'] == 'gm+gifsicle')
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$this->gifsicle = true;
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$this->temp = false;
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}
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public function get_size($src, $try_gd_first = true) {
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@ -264,7 +264,7 @@ class ImageConvert extends ImageBase {
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if ($size) {
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$this->width = $size[0];
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$this->height = $size[1];
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$this->image = true;
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} else {
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// mark as invalid
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@ -273,7 +273,7 @@ class ImageConvert extends ImageBase {
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}
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public function to($src) {
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global $config;
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if (!$this->temp) {
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if ($config['strip_exif']) {
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if($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
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@ -305,16 +305,16 @@ class ImageConvert extends ImageBase {
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}
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public function resize() {
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global $config;
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if ($this->temp) {
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// remove old
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$this->destroy();
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}
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$this->temp = tempnam($config['tmp'], 'convert') . ($config['thumb_ext'] == '' ? '' : '.' . $config['thumb_ext']);
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$config['thumb_keep_animation_frames'] = (int)$config['thumb_keep_animation_frames'];
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if ($this->format == 'gif' && ($config['thumb_ext'] == 'gif' || $config['thumb_ext'] == '') && $config['thumb_keep_animation_frames'] > 1) {
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if ($this->gifsicle) {
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if (($error = shell_exec("gifsicle -w --unoptimize -O2 --resize {$this->width}x{$this->height} < " .
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@ -380,7 +380,7 @@ class ImageConvert extends ImageBase {
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}
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}
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}
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// For when -auto-orient doesn't exist (older versions)
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static public function jpeg_exif_orientation($src, $exif = false) {
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if (!$exif) {
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@ -398,16 +398,16 @@ class ImageConvert extends ImageBase {
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// 8888
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// 88
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// 88
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return '-flop';
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case 3:
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// 88
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// 88
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// 8888
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// 88
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// 888888
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return '-flip -flop';
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case 4:
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// 88
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@ -415,31 +415,31 @@ class ImageConvert extends ImageBase {
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// 8888
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// 88
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// 888888
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return '-flip';
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case 5:
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// 8888888888
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// 88 88
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// 88
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return '-rotate 90 -flop';
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case 6:
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// 88
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// 88 88
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// 8888888888
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return '-rotate 90';
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case 7:
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// 88
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// 88 88
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// 8888888888
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return '-rotate "-90" -flop';
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case 8:
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// 8888888888
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// 88 88
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// 88
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return '-rotate "-90"';
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}
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}
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@ -496,8 +496,3 @@ class ImageBMP extends ImageBase {
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imagebmp($this->image, $src);
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}
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}
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if (PHP_MAJOR_VERSION <= 7 && PHP_MINOR_VERSION < 2) {
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include 'inc/image/bmp.php';
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}
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@ -1,186 +0,0 @@
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<?php
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/*
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* These functions provide a polyfill for old versions of PHP.
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* PHP >= 7.2.0 provides these functions by default.
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*
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* These functions were submitted by user DHKold to the PHP manual in 2005.
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* http://php.net/manual/en/function.imagecreate.php#53879
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*
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* As per http://php.net/manual/en/about.notes.php ("About user notes", PHP
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* Manual), all PHP User Contributed Notes are "...considered part of the PHP
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* manual, and are therefore covered by the same license that covers this
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* documentation."
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*
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* Therefore, as per http://php.net/manual/en/copyright.php ("Copyright", PHP
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* Manual), the code below is licensed under the terms of the Creative Commons
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* Attribution 3.0 license, AKA CC-BY 3.0.
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* http://creativecommons.org/licenses/by/3.0/
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*/
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/*********************************************/
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/* Function: imagecreatefrombmp */
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/* Author: DHKold */
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/* Contact: admin@dhkold.com */
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/* Date: The 15th of June 2005 */
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/* Version: 2.0B */
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/*********************************************/
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function imagecreatefrombmp($filename) {
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if (! $f1 = fopen($filename,"rb")) return FALSE;
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$FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1,14));
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if ($FILE['file_type'] != 19778) return FALSE;
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$BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel'.
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'/Vcompression/Vsize_bitmap/Vhoriz_resolution'.
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'/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1,40));
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$BMP['colors'] = pow(2,$BMP['bits_per_pixel']);
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if ($BMP['size_bitmap'] == 0) $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset'];
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$BMP['bytes_per_pixel'] = $BMP['bits_per_pixel']/8;
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$BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']);
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$BMP['decal'] = ($BMP['width']*$BMP['bytes_per_pixel']/4);
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$BMP['decal'] -= floor($BMP['width']*$BMP['bytes_per_pixel']/4);
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$BMP['decal'] = 4-(4*$BMP['decal']);
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if ($BMP['decal'] == 4) $BMP['decal'] = 0;
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$PALETTE = array();
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if ($BMP['colors'] < 16777216)
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{
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$PALETTE = unpack('V'.$BMP['colors'], fread($f1,$BMP['colors']*4));
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}
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$IMG = fread($f1,$BMP['size_bitmap']);
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$VIDE = chr(0);
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$res = imagecreatetruecolor($BMP['width'],$BMP['height']);
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$P = 0;
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$Y = $BMP['height']-1;
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while ($Y >= 0)
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{
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$X=0;
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while ($X < $BMP['width'])
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{
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if ($BMP['bits_per_pixel'] == 24)
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$COLOR = unpack("V",substr($IMG,$P,3).$VIDE);
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elseif ($BMP['bits_per_pixel'] == 16)
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{
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$COLOR = unpack("n",substr($IMG,$P,2));
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$COLOR[1] = $PALETTE[$COLOR[1]+1];
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}
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elseif ($BMP['bits_per_pixel'] == 8)
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{
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$COLOR = unpack("n",$VIDE.substr($IMG,$P,1));
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$COLOR[1] = $PALETTE[$COLOR[1]+1];
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}
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elseif ($BMP['bits_per_pixel'] == 4)
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{
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$COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1));
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if (($P*2)%2 == 0) $COLOR[1] = ($COLOR[1] >> 4) ; else $COLOR[1] = ($COLOR[1] & 0x0F);
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$COLOR[1] = $PALETTE[$COLOR[1]+1];
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}
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elseif ($BMP['bits_per_pixel'] == 1)
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{
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$COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1));
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if (($P*8)%8 == 0) $COLOR[1] = $COLOR[1] >>7;
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elseif (($P*8)%8 == 1) $COLOR[1] = ($COLOR[1] & 0x40)>>6;
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elseif (($P*8)%8 == 2) $COLOR[1] = ($COLOR[1] & 0x20)>>5;
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elseif (($P*8)%8 == 3) $COLOR[1] = ($COLOR[1] & 0x10)>>4;
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elseif (($P*8)%8 == 4) $COLOR[1] = ($COLOR[1] & 0x8)>>3;
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elseif (($P*8)%8 == 5) $COLOR[1] = ($COLOR[1] & 0x4)>>2;
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elseif (($P*8)%8 == 6) $COLOR[1] = ($COLOR[1] & 0x2)>>1;
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elseif (($P*8)%8 == 7) $COLOR[1] = ($COLOR[1] & 0x1);
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$COLOR[1] = $PALETTE[$COLOR[1]+1];
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}
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else
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return FALSE;
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imagesetpixel($res,$X,$Y,$COLOR[1]);
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$X++;
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$P += $BMP['bytes_per_pixel'];
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}
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$Y--;
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$P+=$BMP['decal'];
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}
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fclose($f1);
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return $res;
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}
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function imagebmp(&$img, $filename='') {
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$widthOrig = imagesx($img);
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$widthFloor = ((floor($widthOrig/16))*16);
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$widthCeil = ((ceil($widthOrig/16))*16);
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$height = imagesy($img);
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$size = ($widthCeil*$height*3)+54;
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// Bitmap File Header
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$result = 'BM'; // header (2b)
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$result .= int_to_dword($size); // size of file (4b)
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$result .= int_to_dword(0); // reserved (4b)
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$result .= int_to_dword(54); // byte location in the file which is first byte of IMAGE (4b)
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// Bitmap Info Header
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$result .= int_to_dword(40); // Size of BITMAPINFOHEADER (4b)
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$result .= int_to_dword($widthCeil); // width of bitmap (4b)
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$result .= int_to_dword($height); // height of bitmap (4b)
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$result .= int_to_word(1); // biPlanes = 1 (2b)
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$result .= int_to_word(24); // biBitCount = {1 (mono) or 4 (16 clr ) or 8 (256 clr) or 24 (16 Mil)} (2b
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$result .= int_to_dword(0); // RLE COMPRESSION (4b)
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$result .= int_to_dword(0); // width x height (4b)
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$result .= int_to_dword(0); // biXPelsPerMeter (4b)
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$result .= int_to_dword(0); // biYPelsPerMeter (4b)
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$result .= int_to_dword(0); // Number of palettes used (4b)
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$result .= int_to_dword(0); // Number of important colour (4b)
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// is faster than chr()
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$arrChr = array();
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for ($i=0; $i<256; $i++){
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$arrChr[$i] = chr($i);
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}
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// creates image data
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$bgfillcolor = array('red'=>0, 'green'=>0, 'blue'=>0);
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// bottom to top - left to right - attention blue green red !!!
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$y=$height-1;
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for ($y2=0; $y2<$height; $y2++) {
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for ($x=0; $x<$widthFloor; ) {
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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$rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
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$result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
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}
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for ($x=$widthFloor; $x<$widthCeil; $x++) {
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$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);
|
||||
}
|
||||
?>
|
Loading…
Reference in New Issue
Block a user