From b078ffb1e4d310b188bc2f440c06567e1ffd3a5a Mon Sep 17 00:00:00 2001 From: Fredrick Brennan Date: Thu, 10 May 2018 17:33:07 +0800 Subject: [PATCH] Close #282 --- inc/image.php | 167 +---------------------------------------- inc/image/bmp.php | 186 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 188 insertions(+), 165 deletions(-) create mode 100644 inc/image/bmp.php diff --git a/inc/image.php b/inc/image.php index 291f3e2a..c3cac504 100644 --- a/inc/image.php +++ b/inc/image.php @@ -497,169 +497,6 @@ class ImageBMP extends ImageBase { } -/*********************************************/ -/* 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 $res; +if (PHP_MAJOR_VERSION <= 7 && PHP_MINOR_VERSION < 2) { + include 'inc/image/bmp.php'; } - -function imagebmp(&$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); -} - diff --git a/inc/image/bmp.php b/inc/image/bmp.php new file mode 100644 index 00000000..845da0de --- /dev/null +++ b/inc/image/bmp.php @@ -0,0 +1,186 @@ += 7.2.0 provides these functions by default. + * + * These functions were submitted by user DHKold to the PHP manual in 2005. + * http://php.net/manual/en/function.imagecreate.php#53879 + * + * As per http://php.net/manual/en/about.notes.php ("About user notes", PHP + * Manual), all PHP User Contributed Notes are "...considered part of the PHP + * manual, and are therefore covered by the same license that covers this + * documentation." + * + * Therefore, as per http://php.net/manual/en/copyright.php ("Copyright", PHP + * Manual), the code below is licensed under the terms of the Creative Commons + * Attribution 3.0 license, AKA CC-BY 3.0. + * http://creativecommons.org/licenses/by/3.0/ + */ + +/*********************************************/ +/* Function: 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 $res; +} + +function imagebmp(&$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); +} +?>