* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
-if ( ! function_exists( 'imagebmp') ) {
- /**
- * Output a BMP image to either the browser or a file
- * @link http://www.ugia.cn/wp-data/imagebmp.php
- * @author legend <legendsky@hotmail.com>
- * @link http://www.programmierer-forum.de/imagebmp-gute-funktion-gefunden-t143716.htm
- * @author mgutt <marc@gutt.it>
- * @version 1.00
- * @param resource $image
- * @param string $filename [optional] <p>The path to save the file to.</p>
- * @param int $bit [optional] <p>Bit depth, (default is 24).</p>
- * @param int $compression [optional]
- * @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
- */
- function imagebmp($im, $filename='', $bit=24, $compression=0) {
- if (!in_array($bit, array(1, 4, 8, 16, 24, 32))) {
- $bit = 24;
- }
- else if ($bit == 32) {
- $bit = 24;
- }
- $bits = pow(2, $bit);
- imagetruecolortopalette($im, true, $bits);
- $width = imagesx($im);
- $height = imagesy($im);
- $colors_num = imagecolorstotal($im);
- $rgb_quad = '';
- if ($bit <= 8) {
- for ($i = 0; $i < $colors_num; $i++) {
- $colors = imagecolorsforindex($im, $i);
- $rgb_quad .= chr($colors['blue']) . chr($colors['green']) . chr($colors['red']) . "\0";
- }
- $bmp_data = '';
- if ($compression == 0 || $bit < 8) {
- $compression = 0;
- $extra = '';
- $padding = 4 - ceil($width / (8 / $bit)) % 4;
- if ($padding % 4 != 0) {
- $extra = str_repeat("\0", $padding);
- }
- for ($j = $height - 1; $j >= 0; $j --) {
- $i = 0;
- while ($i < $width) {
- $bin = 0;
- $limit = $width - $i < 8 / $bit ? (8 / $bit - $width + $i) * $bit : 0;
- for ($k = 8 - $bit; $k >= $limit; $k -= $bit) {
- $index = imagecolorat($im, $i, $j);
- $bin |= $index << $k;
- $i++;
- }
- $bmp_data .= chr($bin);
- }
- $bmp_data .= $extra;
- }
- }
- // RLE8
- else if ($compression == 1 && $bit == 8) {
- for ($j = $height - 1; $j >= 0; $j--) {
- $last_index = "\0";
- $same_num = 0;
- for ($i = 0; $i <= $width; $i++) {
- $index = imagecolorat($im, $i, $j);
- if ($index !== $last_index || $same_num > 255) {
- if ($same_num != 0) {
- $bmp_data .= chr($same_num) . chr($last_index);
- }
- $last_index = $index;
- $same_num = 1;
- }
- else {
- $same_num++;
- }
- }
- $bmp_data .= "\0\0";
- }
- $bmp_data .= "\0\1";
- }
- $size_quad = strlen($rgb_quad);
- $size_data = strlen($bmp_data);
- }
- else {
- $extra = '';
- $padding = 4 - ($width * ($bit / 8)) % 4;
- if ($padding % 4 != 0) {
- $extra = str_repeat("\0", $padding);
- }
- $bmp_data = '';
- for ($j = $height - 1; $j >= 0; $j--) {
- for ($i = 0; $i < $width; $i++) {
- $index = imagecolorat($im, $i, $j);
- $colors = imagecolorsforindex($im, $index);
- if ($bit == 16) {
- $bin = 0 << $bit;
- $bin |= ($colors['red'] >> 3) << 10;
- $bin |= ($colors['green'] >> 3) << 5;
- $bin |= $colors['blue'] >> 3;
- $bmp_data .= pack("v", $bin);
- }
- else {
- $bmp_data .= pack("c*", $colors['blue'], $colors['green'], $colors['red']);
- }
- }
- $bmp_data .= $extra;
- }
- $size_quad = 0;
- $size_data = strlen($bmp_data);
- $colors_num = 0;
- }
- $file_header = 'BM' . pack('V3', 54 + $size_quad + $size_data, 0, 54 + $size_quad);
- $info_header = pack('V3v2V*', 0x28, $width, $height, 1, $bit, $compression, $size_data, 0, 0, $colors_num, 0);
- if ($filename != '') {
- $fp = fopen($filename, 'wb');
- fwrite($fp, $file_header . $info_header . $rgb_quad . $bmp_data);
- fclose($fp);
- return true;
- }
- echo $file_header . $info_header. $rgb_quad . $bmp_data;
- return true;
- }
-}
-
-//From user comments at http://dk2.php.net/manual/en/function.exif-imagetype.php
-if ( ! function_exists( 'exif_imagetype' ) ) {
- function exif_imagetype ( $filename ) {
- if ( ( $info = getimagesize( $filename ) ) !== false ) {
- return $info[2];
- }
- return false;
- }
-}
-
-function ellipsis($str, $maxlen) {
- if (strlen($str) > $maxlen) {
- $characters = floor($maxlen / 2);
- return substr($str, 0, $characters) . '...' . substr($str, -1 * $characters);
- }
- return $str;
-}
-
/**
* Class for basic image manipulation
- *
*/
class OC_Image {
protected $resource = false; // tmp resource.
public function loadFromFile($imagepath=false) {
if(!is_file($imagepath) || !file_exists($imagepath) || !is_readable($imagepath)) {
// Debug output disabled because this method is tried before loadFromBase64?
- OC_Log::write('core', 'OC_Image->loadFromFile, couldn\'t load: '.ellipsis($imagepath, 50), OC_Log::DEBUG);
+ OC_Log::write('core', 'OC_Image->loadFromFile, couldn\'t load: '.$imagepath, OC_Log::DEBUG);
return false;
}
$itype = exif_imagetype($imagepath);
$this->destroy();
}
}
+if ( ! function_exists( 'imagebmp') ) {
+ /**
+ * Output a BMP image to either the browser or a file
+ * @link http://www.ugia.cn/wp-data/imagebmp.php
+ * @author legend <legendsky@hotmail.com>
+ * @link http://www.programmierer-forum.de/imagebmp-gute-funktion-gefunden-t143716.htm
+ * @author mgutt <marc@gutt.it>
+ * @version 1.00
+ * @param resource $image
+ * @param string $filename [optional] <p>The path to save the file to.</p>
+ * @param int $bit [optional] <p>Bit depth, (default is 24).</p>
+ * @param int $compression [optional]
+ * @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
+ */
+ function imagebmp($im, $filename='', $bit=24, $compression=0) {
+ if (!in_array($bit, array(1, 4, 8, 16, 24, 32))) {
+ $bit = 24;
+ }
+ else if ($bit == 32) {
+ $bit = 24;
+ }
+ $bits = pow(2, $bit);
+ imagetruecolortopalette($im, true, $bits);
+ $width = imagesx($im);
+ $height = imagesy($im);
+ $colors_num = imagecolorstotal($im);
+ $rgb_quad = '';
+ if ($bit <= 8) {
+ for ($i = 0; $i < $colors_num; $i++) {
+ $colors = imagecolorsforindex($im, $i);
+ $rgb_quad .= chr($colors['blue']) . chr($colors['green']) . chr($colors['red']) . "\0";
+ }
+ $bmp_data = '';
+ if ($compression == 0 || $bit < 8) {
+ $compression = 0;
+ $extra = '';
+ $padding = 4 - ceil($width / (8 / $bit)) % 4;
+ if ($padding % 4 != 0) {
+ $extra = str_repeat("\0", $padding);
+ }
+ for ($j = $height - 1; $j >= 0; $j --) {
+ $i = 0;
+ while ($i < $width) {
+ $bin = 0;
+ $limit = $width - $i < 8 / $bit ? (8 / $bit - $width + $i) * $bit : 0;
+ for ($k = 8 - $bit; $k >= $limit; $k -= $bit) {
+ $index = imagecolorat($im, $i, $j);
+ $bin |= $index << $k;
+ $i++;
+ }
+ $bmp_data .= chr($bin);
+ }
+ $bmp_data .= $extra;
+ }
+ }
+ // RLE8
+ else if ($compression == 1 && $bit == 8) {
+ for ($j = $height - 1; $j >= 0; $j--) {
+ $last_index = "\0";
+ $same_num = 0;
+ for ($i = 0; $i <= $width; $i++) {
+ $index = imagecolorat($im, $i, $j);
+ if ($index !== $last_index || $same_num > 255) {
+ if ($same_num != 0) {
+ $bmp_data .= chr($same_num) . chr($last_index);
+ }
+ $last_index = $index;
+ $same_num = 1;
+ }
+ else {
+ $same_num++;
+ }
+ }
+ $bmp_data .= "\0\0";
+ }
+ $bmp_data .= "\0\1";
+ }
+ $size_quad = strlen($rgb_quad);
+ $size_data = strlen($bmp_data);
+ }
+ else {
+ $extra = '';
+ $padding = 4 - ($width * ($bit / 8)) % 4;
+ if ($padding % 4 != 0) {
+ $extra = str_repeat("\0", $padding);
+ }
+ $bmp_data = '';
+ for ($j = $height - 1; $j >= 0; $j--) {
+ for ($i = 0; $i < $width; $i++) {
+ $index = imagecolorat($im, $i, $j);
+ $colors = imagecolorsforindex($im, $index);
+ if ($bit == 16) {
+ $bin = 0 << $bit;
+ $bin |= ($colors['red'] >> 3) << 10;
+ $bin |= ($colors['green'] >> 3) << 5;
+ $bin |= $colors['blue'] >> 3;
+ $bmp_data .= pack("v", $bin);
+ }
+ else {
+ $bmp_data .= pack("c*", $colors['blue'], $colors['green'], $colors['red']);
+ }
+ }
+ $bmp_data .= $extra;
+ }
+ $size_quad = 0;
+ $size_data = strlen($bmp_data);
+ $colors_num = 0;
+ }
+ $file_header = 'BM' . pack('V3', 54 + $size_quad + $size_data, 0, 54 + $size_quad);
+ $info_header = pack('V3v2V*', 0x28, $width, $height, 1, $bit, $compression, $size_data, 0, 0, $colors_num, 0);
+ if ($filename != '') {
+ $fp = fopen($filename, 'wb');
+ fwrite($fp, $file_header . $info_header . $rgb_quad . $bmp_data);
+ fclose($fp);
+ return true;
+ }
+ echo $file_header . $info_header. $rgb_quad . $bmp_data;
+ return true;
+ }
+}
+
+if ( ! function_exists( 'exif_imagetype' ) ) {
+ /**
+ * Workaround if exif_imagetype does not exist
+ * @link http://www.php.net/manual/en/function.exif-imagetype.php#80383
+ * @param string $filename
+ * @return string|boolean
+ */
+ function exif_imagetype ( $filename ) {
+ if ( ( $info = getimagesize( $filename ) ) !== false ) {
+ return $info[2];
+ }
+ return false;
+ }
+}
projects / nextcloud-server.git / commitdiff