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X11: Support XCB's new <pad align='n' /> 

Change-Id: I0a45380ffcfb3be7e3190d0875626ed0fe046c4e
Signed-off-by: Peter Harris <pharris@opentext.com>
Reviewed-on: https://code.wireshark.org/review/2147
Reviewed-by: Jeff Morriss <jeff.morriss.ws@gmail.com>
This commit is contained in:
Peter Harris 2014-06-11 17:55:15 -04:00 committed by Jeff Morriss
parent d17aa36833
commit 515b78c292
1 changed files with 34 additions and 7 deletions
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41
tools/process-x11-xcb.pl
View File

@ -4,7 +4,7 @@
# X11 dissector. Creates header files containing code to
# dissect X11 extensions.
#
# Copyright 2008, 2009, 2013 Open Text Corporation <pharris[AT]opentext.com>
# Copyright 2008, 2009, 2013, 2014 Open Text Corporation <pharris[AT]opentext.com>
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <gerald@wireshark.org>
@ -751,8 +751,21 @@ sub dissect_element($$$$$;$$)
given ($e->name()) {
when ('pad') {
my $bytes = $e->att('bytes');
print $impl $indent."UNUSED($bytes);\n";
$length += $bytes;
my $align = $e->att('align');
if (defined $bytes) {
print $impl $indent."UNUSED($bytes);\n";
$length += $bytes;
} else {
say $impl $indent.'if (*offsetp % '.$align.') {';
say $impl $indent." UNUSED($align - *offsetp % $align);";
say $impl $indent."}";
if ($length % $align != 0) {
$length += $align - $length % $align;
}
if ($adjustlength) {
say $impl $indent.'length = (length + '.($align-1).' & ~'.($align-1).';';
}
}
}
when ('field') {
my $fieldname = $e->att('name');
@ -937,8 +950,17 @@ sub struct {
given ($e->name()) {
when ('pad') {
my $bytes = $e->att('bytes');
$size += $bytes;
next;
my $align = $e->att('align');
if (defined $bytes) {
$size += $bytes;
next;
}
if (!$dynamic) {
if ($size % $align) {
$size += $align - $size % $align;
}
}
next;
}
when ('list') {
my $type = $e->att('type');
@ -1005,7 +1027,12 @@ eot
given ($e->name()) {
when ('pad') {
my $bytes = $e->att('bytes');
$size += $bytes;
my $align = $e->att('align');
if (defined $bytes) {
$size += $bytes;
} else {
say $impl ' size = (size + '.($align-1).') & ~'.($align-1).';';
}
}
when ('list') {
my $len = $e->first_child();
@ -1655,7 +1682,7 @@ eot
# Add license text
print $out <<eot
/*
* Copyright 2008, 2009, 2013 Open Text Corporation <pharris[AT]opentext.com>
* Copyright 2008, 2009, 2013, 2014 Open Text Corporation <pharris[AT]opentext.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald[AT]wireshark.org>