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Remove obsolete script
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Nigel Stewart
parent
b3ff4606be
commit
243531f398
@ -1,202 +0,0 @@
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package OpenGL::Spec;
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# A very simple task further complicated by the fact that some people
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# can't read, others use legacy Operating Systems, and others don't give
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# a damn about using a halfway decent text editor.
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#
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# The code to parse the _template_ is so simple and straightforward...
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# yet the code to parse the real spec files is this mess.
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my %typemap = (
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bitfield => "GLbitfield",
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boolean => "GLboolean",
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# fsck up in EXT_vertex_array
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Boolean => "GLboolean",
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byte => "GLbyte",
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clampd => "GLclampd",
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clampf => "GLclampf",
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double => "GLdouble",
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enum => "GLenum",
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# Intel fsck up
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Glenum => "GLenum",
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float => "GLfloat",
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half => "GLuint",
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int => "GLint",
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short => "GLshort",
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sizei => "GLsizei",
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ubyte => "GLubyte",
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uint => "GLuint",
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ushort => "GLushort",
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DMbuffer => "void *",
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# ARB VBO introduces these
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sizeiptrARB => "GLsizeiptrARB",
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intptrARB => "GLintptrARB",
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# ARB shader objects introduces these, charARB is at least 8 bits,
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# handleARB is at least 32 bits
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charARB => "GLcharARB",
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handleARB => "GLhandleARB",
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# GLX 1.3 defines new types which might not be available at compile time
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#GLXFBConfig => "void*",
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#GLXFBConfigID => "XID",
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#GLXContextID => "XID",
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#GLXWindow => "XID",
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#GLXPbuffer => "XID",
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# Weird stuff for some SGIX extension
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#GLXFBConfigSGIX => "void*",
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#GLXFBConfigIDSGIX => "XID",
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);
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my %void_typemap = (
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void => "GLvoid",
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);
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my $section_re = qr{^[A-Z]};
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my $function_re = qr{^(.+) ([a-z][a-z0-9_]*) \((.+)\)$}i;
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my $token_re = qr{^([A-Z0-9][A-Z0-9_]*):?\s+((?:0x)?[0-9A-F]+)(.*)$};
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my $prefix_re = qr{^(?:AGL | GLX | WGL)_}x;
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my $eofnc_re = qr{ \);?$ | ^$ }x;
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my $function_re = qr{^(.+) ([a-z][a-z0-9_]*) \((.+)\)$}i;
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my $prefix_re = qr{^(?:gl | agl | wgl | glX)}x;
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my $types_re = __compile_wordlist_cap(keys %typemap);
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my $voidtype_re = __compile_wordlist_cap(keys %void_typemap);
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sub new($)
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{
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my $class = shift;
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my $self = { section => {} };
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$self->{filename} = shift;
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local $/;
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open(my $fh, "<$self->{filename}") or die "Can't open $self->{filename}";
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my $content = <$fh>;
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my $section;
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my $s = $self->{section};
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$content =~ s{[ \t]+$}{}mg;
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# Join lines that end with a word-character and ones that *begin*
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# with one
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$content =~ s{(\w)\n(\w)}{$1 $2}sg;
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foreach (split /\n/, $content)
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{
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if (/$section_re/)
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{
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chomp;
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s/^Name String$/Name Strings/; # Fix common mistake
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$section = $_;
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$s->{$section} = "";
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}
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elsif (defined $section and exists $s->{$section})
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{
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s{^\s+}{}mg; # Remove leading whitespace
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$s->{$section} .= $_ . "\n";
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}
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}
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$s->{$_} =~ s{(?:^\n+|\n+$)}{}s foreach keys %$s;
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bless $self, $class;
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}
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sub sections()
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{
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my $self = shift;
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keys %{$self->{section}};
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}
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sub name()
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{
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my $self = shift;
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$self->{section}->{Name};
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}
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sub name_strings()
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{
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my $self = shift;
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split("\n", $self->{section}->{"Name Strings"});
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}
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sub tokens()
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{
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my $self = shift;
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my %tokens = ();
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foreach (split /\n/, $self->{section}->{"New Tokens"})
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{
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next unless /$token_re/;
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my ($name, $value) = ($1, $2);
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$name =~ s{^}{GL_} unless $name =~ /$prefix_re/;
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$tokens{$name} = $value;
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}
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return %tokens;
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}
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sub functions()
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{
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my $self = shift;
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my %functions = ();
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my @fnc = ();
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foreach (split /\n/, $self->{section}->{"New Procedures and Functions"})
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{
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push @fnc, $_ unless ($_ eq "" or $_ eq "None");
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next unless /$eofnc_re/;
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if (__normalize_proto(@fnc) =~ /$function_re/)
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{
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my ($return, $name, $parms) = ($1, $2, $3);
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if (!__ignore_function($name, $extname))
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{
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$name =~ s/^/gl/ unless $name =~ /$prefix_re/;
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if ($name =~ /^gl/ && $name !~ /^glX/)
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{
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$return =~ s/$types_re/$typemap{$1}/g;
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$return =~ s/$voidtype_re/$void_typemap{$1}/g;
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$parms =~ s/$types_re/$typemap{$1}/g;
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$parms =~ s/$voidtype_re/$void_typemap{$1}/g;
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}
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$functions{$name} = {
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rtype => $return,
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parms => $parms,
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};
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}
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}
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@fnc = ();
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}
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return %functions;
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}
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sub __normalize_proto
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{
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local $_ = join(" ", @_);
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s/\s+/ /g; # multiple whitespace -> single space
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s/\s*\(\s*/ \(/; # exactly one space before ( and none after
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s/\s*\)\s*/\)/; # no after before or after )
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s/\s*\*([a-zA-Z])/\* $1/; # "* identifier" XXX: g missing?
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s/\*wgl/\* wgl/; # "* wgl" XXX: why doesn't the
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s/\*glX/\* glX/; # "* glX" previous re catch this?
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s/\.\.\./void/; # ... -> void
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s/;$//; # remove ; at the end of the line
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return $_;
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}
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sub __ignore_function
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{
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return 0;
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}
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sub __compile_regex
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{
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my $regex = join('', @_);
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return qr/$regex/
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}
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sub __compile_wordlist_cap
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{
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__compile_regex('\b(', join('|', @_), ')\b');
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}
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