Cleaner code and whitespace.

This commit is contained in:
Savetheinternet 2010-11-04 19:40:51 +11:00
parent 25e4d3b6e9
commit 90dd6f5949

View File

@ -409,84 +409,83 @@
return $return;
}
function imagebmp(&$img, $filename=""){
$widthOrig = imagesx($img);
// width = 16*x
$widthFloor = ((floor($widthOrig/16))*16);
$widthCeil = ((ceil($widthOrig/16))*16);
$height = imagesy($img);
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;
$size = ($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)
// 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);
}
// 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);
// 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--;
}
// 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);
}
// 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);
}
?>