jpeg2bmp help please.

[PhaZZed]

This is my code:

-----------
$image = @imagecreatefromjpeg($filename);
if ($image === false) { die ('Unable to open image'); }

$height = imagesy($image);
$width = imagesx($image);

$bmpdest = "../bmp/" . $rand . ".bmp";
$bmp = jpeg2wbmp($filename, $bmpdest, 100, 100, 4);
-----------

It's creating the bmp image and everything, but once the .bmp is downloaded, when trying to open, it returns an error about an invalid image file..

Anyone able to shed some light?

[Habtom]

$image = @imagecreatefromjpeg($filename);

Do you get any errors while the image is being converted? Try removing the "@" and check if that gives any errors.

Habtom

[PhaZZed]

No errors with or without the @..

That part is only used to fetch the height and width tho, so that I can use it for the height and width parameters for the conversion function..

[edited by: PhaZZed at 11:06 am (utc) on Aug. 13, 2007]

[Scally_Ally]

so you only really need these lines,

$bmpdest = "../bmp/" . $rand . ".bmp";
$bmp = jpeg2wbmp($filename, $bmpdest, 100, 100, 4);

the only probs that it looks like it could be are
1. destination not writable
2. GD library not up to date
3. Set the filetype to .wbmp
($bmpdest = "../bmp/" . $rand . ".wbmp";)

[whoisgregg]

The jpeg2wbmp [php.net] function creates Wireless Bitmaps, not Windows Bitmaps.

PHP does not have native support for BMP files. The comments on the imagecreatefromwbmp [php.net] manual page may be helpful. :)

[PhaZZed]

I ended up using phpThumb to do the conversion, just 'borrowed' their bmp class file:

require_once('phpthumb.functions.php');
require_once('phpthumb.bmp.php');
$filename = $_GET['file'];
$jpg = imagecreatefromjpeg($filename);
$phpbmp = new phpthumb_bmp();
$location = "../bmp/" . $rand . ".bmp";
file_put_contents($location, $phpbmp->GD2BMPstring($jpg));

Ye, WBMP creates a mono WAP style bmp file, not readable by Windows.

[edited by: PhaZZed at 2:43 pm (utc) on Aug. 13, 2007]