glew/auto/bin/make_header.pl

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#!/usr/bin/perl
#
# Copyright (C) 2003 Marcelo E. Magallon <mmagallo@debian.org>
#
# This program is distributed under the terms and conditions of the GNU
# General Public License Version 2 as published by the Free Software
# Foundation or, at your option, any later version.
use strict;
use warnings;
do 'bin/make.pl';
# token
sub make_define($$)
{
return "#define $_[0] $_[1]"
}
# type declaration
sub make_type($$)
{
return "typedef $_[1] $_[0];"
}
# function pointer type declaration
sub make_pfn_type($%)
{
our $api;
return join('', "typedef ", $_[1]->{rtype},
" ($api * PFN" . (uc $_[0]) . "PROC) ",
"(" . $_[1]->{parms} . ")") . ";";
}
# function name alias
sub make_pfn_alias($%)
{
return join(" ", "#define", $_[0], prefixname($_[0]))
}
# function pointer declaration
sub make_pfn_decl($%)
{
return "GLEWAPI PFN" . (uc $_[0]) . "PROC " . prefixname($_[0]) . ";";
}
my @extlist = ();
my %extensions = ();
our $api = shift;
if (@ARGV)
{
@extlist = @ARGV;
} else {
local $/;
@extlist = split "\n", (<>);
}
foreach my $ext (sort @extlist)
{
my ($extname, $types, $tokens, $functions, $exacts) = parse_ext($ext);
make_separator($extname);
print "#ifndef $extname\n#define $extname 1\n";
output_tokens($tokens, \&make_define);
output_types($types, \&make_type);
output_exacts($exacts, \&make_exact);
output_decls($functions, \&make_pfn_type);
output_decls($functions, \&make_pfn_decl);
output_decls($functions, \&make_pfn_alias);
my $extvar = $extname;
my $extvardef = $extname;
$extvar =~ s/GL(X*)_/GL$1EW_/;
$extvardef=~ s/(W*)GL(X*)_/\l$1gl\l$2ew_/;
print "\nGLEWAPI GLboolean $extvar;\n";
print "#define $extvardef $extvar\n\n";
print "#endif /* $extname */\n\n";
}