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authorSavetheinternet <savetheinternet@tinyboard.org>2011-07-12 20:29:35 +1000
committerSavetheinternet <savetheinternet@tinyboard.org>2011-07-12 20:29:35 +1000
commit97979b79992474d342404f76a61936c456c0565d (patch)
treeac564e784aaf18a6d3bc4da7711c192b48e80ef3 /inc/functions.php
parent2d00b32bede669d82b09f3a1c78923883581bff2 (diff)
image handling class
Diffstat (limited to 'inc/functions.php')
-rw-r--r--inc/functions.php258
1 files changed, 1 insertions, 257 deletions
diff --git a/inc/functions.php b/inc/functions.php
index 7e57f7bd..91b68bfc 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1495,91 +1495,7 @@
return "{$numerator}{$sep}{$denominator}";
}
- /*********************************************/
- /* Fonction: imagecreatefrombmp */
- /* Author: DHKold */
- /* Contact: admin@dhkold.com */
- /* Date: The 15th of June 2005 */
- /* Version: 2.0B */
- /*********************************************/
-
- function imagecreatefrombmp($filename) {
- if (! $f1 = fopen($filename,"rb")) return FALSE;
- $FILE = unpack("vfile_type/Vfile_size/Vreserved/Vbitmap_offset", fread($f1,14));
- if ($FILE['file_type'] != 19778) return FALSE;
- $BMP = unpack('Vheader_size/Vwidth/Vheight/vplanes/vbits_per_pixel'.
- '/Vcompression/Vsize_bitmap/Vhoriz_resolution'.
- '/Vvert_resolution/Vcolors_used/Vcolors_important', fread($f1,40));
- $BMP['colors'] = pow(2,$BMP['bits_per_pixel']);
- if ($BMP['size_bitmap'] == 0) $BMP['size_bitmap'] = $FILE['file_size'] - $FILE['bitmap_offset'];
- $BMP['bytes_per_pixel'] = $BMP['bits_per_pixel']/8;
- $BMP['bytes_per_pixel2'] = ceil($BMP['bytes_per_pixel']);
- $BMP['decal'] = ($BMP['width']*$BMP['bytes_per_pixel']/4);
- $BMP['decal'] -= floor($BMP['width']*$BMP['bytes_per_pixel']/4);
- $BMP['decal'] = 4-(4*$BMP['decal']);
- if ($BMP['decal'] == 4) $BMP['decal'] = 0;
-
- $PALETTE = array();
- if ($BMP['colors'] < 16777216)
- {
- $PALETTE = unpack('V'.$BMP['colors'], fread($f1,$BMP['colors']*4));
- }
-
- $IMG = fread($f1,$BMP['size_bitmap']);
- $VIDE = chr(0);
-
- $res = imagecreatetruecolor($BMP['width'],$BMP['height']);
- $P = 0;
- $Y = $BMP['height']-1;
- while ($Y >= 0)
- {
- $X=0;
- while ($X < $BMP['width'])
- {
- if ($BMP['bits_per_pixel'] == 24)
- $COLOR = unpack("V",substr($IMG,$P,3).$VIDE);
- elseif ($BMP['bits_per_pixel'] == 16)
- {
- $COLOR = unpack("n",substr($IMG,$P,2));
- $COLOR[1] = $PALETTE[$COLOR[1]+1];
- }
- elseif ($BMP['bits_per_pixel'] == 8)
- {
- $COLOR = unpack("n",$VIDE.substr($IMG,$P,1));
- $COLOR[1] = $PALETTE[$COLOR[1]+1];
- }
- elseif ($BMP['bits_per_pixel'] == 4)
- {
- $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1));
- if (($P*2)%2 == 0) $COLOR[1] = ($COLOR[1] >> 4) ; else $COLOR[1] = ($COLOR[1] & 0x0F);
- $COLOR[1] = $PALETTE[$COLOR[1]+1];
- }
- elseif ($BMP['bits_per_pixel'] == 1)
- {
- $COLOR = unpack("n",$VIDE.substr($IMG,floor($P),1));
- if (($P*8)%8 == 0) $COLOR[1] = $COLOR[1] >>7;
- elseif (($P*8)%8 == 1) $COLOR[1] = ($COLOR[1] & 0x40)>>6;
- elseif (($P*8)%8 == 2) $COLOR[1] = ($COLOR[1] & 0x20)>>5;
- elseif (($P*8)%8 == 3) $COLOR[1] = ($COLOR[1] & 0x10)>>4;
- elseif (($P*8)%8 == 4) $COLOR[1] = ($COLOR[1] & 0x8)>>3;
- elseif (($P*8)%8 == 5) $COLOR[1] = ($COLOR[1] & 0x4)>>2;
- elseif (($P*8)%8 == 6) $COLOR[1] = ($COLOR[1] & 0x2)>>1;
- elseif (($P*8)%8 == 7) $COLOR[1] = ($COLOR[1] & 0x1);
- $COLOR[1] = $PALETTE[$COLOR[1]+1];
- }
- else
- return FALSE;
- imagesetpixel($res,$X,$Y,$COLOR[1]);
- $X++;
- $P += $BMP['bytes_per_pixel'];
- }
- $Y--;
- $P+=$BMP['decal'];
- }
- fclose($f1);
-
- return $res;
- }
+
function getPostByHash($hash) {
global $board;
@@ -1602,176 +1518,4 @@
file_unlink($post['thumb']);
}
}
-
- function createimage($type, $source_pic) {
- global $config;
-
- $image = false;
- switch($type) {
- case 'jpg':
- case 'jpeg':
- if(!$image = @imagecreatefromjpeg($source_pic)) {
- file_unlink($source_pic);
- error($config['error']['invalidimg']);
- }
- break;
- case 'png':
- if(!$image = @imagecreatefrompng($source_pic)) {
- file_unlink($source_pic);
- error($config['error']['invalidimg']);
- }
- break;
- case 'gif':
- if(!$image = @imagecreatefromgif($source_pic)) {
- file_unlink($source_pic);
- error($config['error']['invalidimg']);
- }
- break;
- case 'bmp':
- if(!$image = @imagecreatefrombmp($source_pic)) {
- unlink($source_pic);
- file_unlink($config['error']['invalidimg']);
- }
- break;
- default:
- error($config['error']['unknownext']);
- }
- return $image;
- }
-
- function resize($src, $width, $height, $destination_pic, $max_width, $max_height, $ext) {
- global $config;
- $return = Array();
-
- $x_ratio = $max_width / $width;
- $y_ratio = $max_height / $height;
-
- if(($width <= $max_width) && ($height <= $max_height)) {
- $tn_width = $width;
- $tn_height = $height;
- } elseif (($x_ratio * $height) < $max_height) {
- $tn_height = ceil($x_ratio * $height);
- $tn_width = $max_width;
- } else {
- $tn_width = ceil($y_ratio * $width);
- $tn_height = $max_height;
- }
-
- $return['width'] = $tn_width;
- $return['height'] = $tn_height;
-
- $tmp = imagecreatetruecolor($tn_width, $tn_height);
-
- if($ext == 'png' || $ext == 'gif') {
- imagecolortransparent($tmp, imagecolorallocatealpha($tmp, 0, 0, 0, 0));
- imagesavealpha($tmp, true);
- }
- if($ext == 'png')
- imagealphablending($tmp, false);
-
- imagecopyresampled($tmp, $src, 0, 0, 0, 0, $tn_width, $tn_height, $width, $height);
-
- switch($ext) {
- case 'jpg':
- case 'jpeg':
- imagejpeg($tmp, $destination_pic);
- break;
- case 'png':
- imagepng($tmp, $destination_pic, $config['thumb_quality']);
- break;
- case 'gif':
- imagegif($tmp, $destination_pic);
- break;
- case 'bmp':
- imagebmp($tmp, $destination_pic);
- break;
- default:
- error($config['error']['unknownext']);
- }
-
- imagedestroy($src);
- imagedestroy($tmp);
-
- return $return;
- }
-
- function imagebmp(&$img, $filename='') {
- $widthOrig = imagesx($img);
- $widthFloor = ((floor($widthOrig/16))*16);
- $widthCeil = ((ceil($widthOrig/16))*16);
- $height = imagesy($img);
-
- $size = ($widthCeil*$height*3)+54;
-
- // Bitmap File Header
- $result = 'BM'; // header (2b)
- $result .= int_to_dword($size); // size of file (4b)
- $result .= int_to_dword(0); // reserved (4b)
- $result .= int_to_dword(54); // byte location in the file which is first byte of IMAGE (4b)
- // Bitmap Info Header
- $result .= int_to_dword(40); // Size of BITMAPINFOHEADER (4b)
- $result .= int_to_dword($widthCeil); // width of bitmap (4b)
- $result .= int_to_dword($height); // height of bitmap (4b)
- $result .= int_to_word(1); // biPlanes = 1 (2b)
- $result .= int_to_word(24); // biBitCount = {1 (mono) or 4 (16 clr ) or 8 (256 clr) or 24 (16 Mil)} (2b
- $result .= int_to_dword(0); // RLE COMPRESSION (4b)
- $result .= int_to_dword(0); // width x height (4b)
- $result .= int_to_dword(0); // biXPelsPerMeter (4b)
- $result .= int_to_dword(0); // biYPelsPerMeter (4b)
- $result .= int_to_dword(0); // Number of palettes used (4b)
- $result .= int_to_dword(0); // Number of important colour (4b)
-
- // is faster than chr()
- $arrChr = array();
- for($i=0; $i<256; $i++){
- $arrChr[$i] = chr($i);
- }
-
- // creates image data
- $bgfillcolor = array('red'=>0, 'green'=>0, 'blue'=>0);
-
- // bottom to top - left to right - attention blue green red !!!
- $y=$height-1;
- for ($y2=0; $y2<$height; $y2++) {
- for ($x=0; $x<$widthFloor; ) {
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- $rgb = imagecolorsforindex($img, imagecolorat($img, $x++, $y));
- $result .= $arrChr[$rgb['blue']].$arrChr[$rgb['green']].$arrChr[$rgb['red']];
- }
- for ($x=$widthFloor; $x<$widthCeil; $x++) {
- $rgb = ($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);
- }
?>