Just to follow up, after upgrading to 4.3.4 it started working. So the
code apparently doesnt work on 4.3.0.
thanks,
Brian
"Chung Leong" <chernyshevsky@hotmail.com> wrote in message news:<j6WdnUorZJg0oqjdRVn-uw@comcast.com>...[color=blue]
> Email me the bmp file and I'll take a look. It worked fine with my test
> image (256 colors).
>
> Uzytkownik "Brian" <brianc8876@aol.com> napisal w wiadomosci
> news:d080c1cd.0402181618.32719a51@posting.google.c om...[color=green]
> > I am running 4.3.0 with the extensions enabled. It fails on
> > imagecreatefromgd(), so its not creating a valid gd. I cut and pasted
> > it directly and ran it as is.
> >
> > Brian
> >
> >
> > "Chung Leong" <chernyshevsky@hotmail.com> wrote in message[/color]
> news:<AvqdnX8dIOfINa_dRVn-gg@comcast.com>...[color=green][color=darkred]
> > > Make sure you have GD2 extension enabled.
> > >
> > > Uzytkownik "Brian" <brianc8876@aol.com> napisal w wiadomosci
> > > news:d080c1cd.0402170619.171756e1@posting.google.c om...
> > > > Someone posted a function to implement imagecreatefrombmp()but it
> > > > fails in imagecreatedfromgd() in my test. Can the author check to see
> > > > if theres a typo? Its very useful if it will work!
> > > >
> > > > Brian
> > > >
> > > >
> > > > "Erwin Bon" <ernie@verkerk.nl> wrote in message[/color][/color]
> news:<3fc9d260$0$4671$1b62eedf@news.euronet.nl>...[color=green][color=darkred]
> > > > > Hello,
> > > > >
> > > > > I need to be able to read windows bitmap files (*.bmp) into the[/color][/color]
> GD-functions[color=green][color=darkred]
> > > > > in order to create a jpg-file from it. Is such a thing possible. I[/color][/color]
> seem
> te[color=green][color=darkred]
> > > > > be unable to find the required functions.
> > > > >
> > > > > Hope you can help me.
> > > > >
> > > > > Regards, Erwin
> > > >
> > > > The GD library doesn't support .BMP files for some reason. I've
> > > > written a function that converts .BMP files to .GD, a very simple
> > > > format that GD uses.
> > > >
> > > > The following code implements imagecreatefrombmp(). It first convert
> > > > the BMP to GD, saving it to a temporary location, then open the image
> > > > using imagecreatefromgd().
> > > >
> > > >
> > > > <?
> > > >
> > > > function ConvertBMP2GD($src, $dest = false) {
> > > > if(!($src_f = fopen($src, "rb"))) {
> > > > return false;
> > > > }
> > > > if(!($dest_f = fopen($dest, "wb"))) {
> > > > return false;
> > > > }
> > > > $header = unpack("vtype/Vsize/v2reserved/Voffset", fread($src_f,
> > > > 14));
> > > > $info =
> > >[/color][/color]
> unpack("Vsize/Vwidth/Vheight/vplanes/vbits/Vcompression/Vimagesize/Vxres/Vyr[color=green][color=darkred]
> > > es/Vncolor/Vimportant",
> > > > fread($src_f, 40));
> > > >
> > > > extract($info);
> > > > extract($header);
> > > >
> > > > if($type != 0x4D42) { // signature "BM"
> > > > return false;
> > > > }
> > > >
> > > > $palette_size = $offset - 54;
> > > > $ncolor = $palette_size / 4;
> > > > $gd_header = "";
> > > > // true-color vs. palette
> > > > $gd_header .= ($palette_size == 0) ? "\xFF\xFE" : "\xFF\xFF";
> > > > $gd_header .= pack("n2", $width, $height);
> > > > $gd_header .= ($palette_size == 0) ? "\x01" : "\x00";
> > > > if($palette_size) {
> > > > $gd_header .= pack("n", $ncolor);
> > > > }
> > > > // no transparency
> > > > $gd_header .= "\xFF\xFF\xFF\xFF";
> > > >
> > > > fwrite($dest_f, $gd_header);
> > > >
> > > > if($palette_size) {
> > > > $palette = fread($src_f, $palette_size);
> > > > $gd_palette = "";
> > > > $j = 0;
> > > > while($j < $palette_size) {
> > > > $b = $palette{$j++};
> > > > $g = $palette{$j++};
> > > > $r = $palette{$j++};
> > > > $a = $palette{$j++};
> > > > $gd_palette .= "$r$g$b$a";
> > > > }
> > > > $gd_palette .= str_repeat("\x00\x00\x00\x00", 256 - $ncolor);
> > > > fwrite($dest_f, $gd_palette);
> > > > }
> > > >
> > > > $scan_line_size = (($bits * $width) + 7) >> 3;
> > > > $scan_line_align = ($scan_line_size & 0x03) ? 4 - ($scan_line_size &
> > > > 0x03) : 0;
> > > >
> > > > for($i = 0, $l = $height - 1; $i < $height; $i++, $l--) {
> > > > // BMP stores scan lines starting from bottom
> > > > fseek($src_f, $offset + (($scan_line_size + $scan_line_align) *
> > > > $l));
> > > > $scan_line = fread($src_f, $scan_line_size);
> > > > if($bits == 24) {
> > > > $gd_scan_line = "";
> > > > $j = 0;
> > > > while($j < $scan_line_size) {
> > > > $b = $scan_line{$j++};
> > > > $g = $scan_line{$j++};
> > > > $r = $scan_line{$j++};
> > > > $gd_scan_line .= "\x00$r$g$b";
> > > > }
> > > > }
> > > > else if($bits == 8) {
> > > > $gd_scan_line = $scan_line;
> > > > }
> > > > else if($bits == 4) {
> > > > $gd_scan_line = "";
> > > > $j = 0;
> > > > while($j < $scan_line_size) {
> > > > $byte = ord($scan_line{$j++});
> > > > $p1 = chr($byte >> 4);
> > > > $p2 = chr($byte & 0x0F);
> > > > $gd_scan_line .= "$p1$p2";
> > > > } $gd_scan_line = substr($gd_scan_line, 0, $width);
> > > > }
> > > > else if($bits == 1) {
> > > > $gd_scan_line = "";
> > > > $j = 0;
> > > > while($j < $scan_line_size) {
> > > > $byte = ord($scan_line{$j++});
> > > > $p1 = chr((int) (($byte & 0x80) != 0));
> > > > $p2 = chr((int) (($byte & 0x40) != 0));
> > > > $p3 = chr((int) (($byte & 0x20) != 0));
> > > > $p4 = chr((int) (($byte & 0x10) != 0));
> > > > $p5 = chr((int) (($byte & 0x08) != 0));
> > > > $p6 = chr((int) (($byte & 0x04) != 0));
> > > > $p7 = chr((int) (($byte & 0x02) != 0));
> > > > $p8 = chr((int) (($byte & 0x01) != 0));
> > > > $gd_scan_line .= "$p1$p2$p3$p4$p5$p6$p7$p8";
> > > > } $gd_scan_line = substr($gd_scan_line, 0, $width);
> > > > }
> > > >
> > > > fwrite($dest_f, $gd_scan_line);
> > > > }
> > > > fclose($src_f);
> > > > fclose($dest_f);
> > > > return true;
> > > > }
> > > >
> > > > function imagecreatefrombmp($filename) {
> > > > $tmp_name = tempnam("/tmp", "GD");
> > > > if(ConvertBMP2GD($filename, $tmp_name)) {
> > > > $img = imagecreatefromgd($tmp_name);
> > > > unlink($tmp_name);
> > > > return $img;
> > > > } return false;
> > > > }
> > > >
> > > > $img = imagecreatefrombmp("test24bit.bmp");
> > > > imagejpeg($img, "test.jpg");
> > > >
> > > > ?>
> > > > <img src="test.jpg">[/color][/color][/color]
