ID:               19781
 Updated by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
-Status:           Open
+Status:           Closed
 Bug Type:         GD related
 Operating System: Darwin 6.1 (Mac 10.2.1)
 PHP Version:      4CVS-2002-10-06
 New Comment:

Ok, fixed in CVS.  Someone hardcoded 256 into this function.  Looks
like nobody ever actually tested this one.


Previous Comments:
------------------------------------------------------------------------

[2002-10-06 12:52:50] [EMAIL PROTECTED]

Ok, I traced through this one quickly.  It does convert the image from
truecolor to palette based, it just happens to choose 234 colours
instead of 2.  I'll take a look at this later on today.

------------------------------------------------------------------------

[2002-10-06 12:40:00] [EMAIL PROTECTED]

If it wasn't before it is converted to true color in the script.

------------------------------------------------------------------------

[2002-10-06 12:30:40] [EMAIL PROTECTED]

Is world_map_med.gd2 a truecolor image?  This function does nothing if
the image has a palette.

------------------------------------------------------------------------

[2002-10-06 12:18:35] [EMAIL PROTECTED]

imagetruecolortopalette() is:
void imagetruecolortopalette ( resource image, bool dither, int
ncolors)

but the function seems to ignore my ncolors input. ncolors  should be
the maximum number of colors in the output image. (and I cannot tell if
dither works)

Test script:
<?php
header( "Content-type: image/png" );

$medimg = $_SERVER['DOCUMENT_ROOT'] .
"/riverdata/images/world_map_med.gd2";
$img = ImageCreateFromGD2Part( $medimg, 900, 500, 800, 600 );

//Avoid bug #19418
$medimg = ImageCreateTrueColor( 800, 600 );
ImageCopy( $medimg, $img, 0, 0, 0, 0, 800, 600 );
ImageDestroy( $img );
$img = $medimg;

ImageTrueColorToPalette( $img, FALSE, 2 );

ImagePNG( $img );
ImageDestroy( $img );
?>

You can find the GD2 image that I am using here:
http://144.92.10.251/riverdata/images/world_map_med.gd2

The previous episode in this saga can be seen here:
http://bugs.php.net/bug.php?id=19704

------------------------------------------------------------------------


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