Subversion Repositories OpenARM Single-board Computer

#!/usr/bin/perl

# -*- perl -*-

# Copyright (C) 2006 DJ Delorie dj@delorie.com

# Released under the terms of the GNU General Public License, version 2

# Usage: djboxsym sample.symdef > sample.sym

$y{left} = 300;

$y{right} = 300;

$y{labels} = -200;

$labelpin = 0;

# Read in the file, storing information about each pin.

while (<>) {

    next if /^#/;

    s/^\s+//;

    s/\s+$//;

    s/[\s\t]+/ /g;

    s/[\r\n]+$//;

    # Note change of section.

    if (/^\[(.*)\]/) {

        $side = $1;

        $space = 0;

        next;

    }

    # Start a bus

    if (/^\.bus/) {

        $busmode = 1;

        next;

    }

    # blank lines - cancel bus, add gap.

    if (! /\S/) {

        if ($busmode) {

            $y{$side} += 200;

        }

        $busmode = 0;

        if ($space) {

            if ($side =~ /left|right/) {

                $y{$side} += 300;

            }

            if ($side =~ /top|bottom/) {

                $x{$side} += 400;

            }

            $space = 0;

        }

        next;

    }

    # Hidden labels are stored separately, because we don't care how

    # big they are.

    if (/! (\S.*)/ && $side eq "labels") {

        push(@attrs, $1);

        next;

    }

    # Visible labels are stored as pins because their size affects the

    # size of the symbols' box.

    if (/\S/ && $side eq "labels") {

        $labelpin --;

        $pinside{$labelpin} = $side;

        $piny{$labelpin} = $y{labels};

        $pinlabel{$labelpin} = $_;

        $y{labels} -= 200;

        $rlen{$labelpin} = &textlen($_);

        next;

    }

    # Regular pins are handled here.

    if (/^([0-9A-Za-z]+)\s*(.*)/) {

        $space = 1;

        ($pin, $rest) = ($1,$2);

        if ($saw_pin{$pin}) {

            print STDERR "DUPLICATE PIN $pin (was $pinlabel{$pin}, now $rest)\n";

            $errors ++;

        }

        $saw_pin{$pin} = 1;

        $maxpin = $pin if $maxpin < $pin;

        $pinside{$pin} = $side;

        next if $side eq "nc";

        if ($rest =~ /^([!>]+) (.*)/) {

            $flags = $1;

            $pinlabel{$pin} = $2;

            $bubble{$pin} = 1 if $flags =~ /!/;

            $edge{$pin} = 1 if $flags =~ />/;

        } else {

            $pinlabel{$pin} = $rest;

        }

        $rlen{$pin} = &textlen($pinlabel{$pin});

        if ($side =~ /left|right/) {

            $y = $piny{$pin} = $y{$side};

            $y{$side} += ($busmode ? 200 : 300);

        }

        if ($side =~ /top|bottom/) {

            $tw = &alignpin((200 + $rlen{$pin}) / 2);

            $pinx{$pin} = $w{$side} + $tw;

            $w{$side} += $tw + $tw;

        }

    }

}

$minpin = $labelpin;

$boxwidth = 0;

%bw = ();

# for each horizontal slice of the symbol, keep track of how much

# width is used up by the left, middle, and right labels.

for $lp (keys %pinside) {

    next unless $pinside{$lp} =~ /left|right|label/;

    $yb = &alignpin($piny{$lp});

    for ($y=$yb-100; $y<=$yb+100; $y+=100) {

        if ($bw{$y}{$pinside{$lp}} < $rlen{$lp}) {

            $bw{$y}{$pinside{$lp}} = $rlen{$lp};

        }

    }

}

# Compute the height of the box. 

for $p (keys %pinside) {

    next unless $pinside{$p} =~ /left|right/;

    if ($maxy < $piny{$p}) {

        $maxy = $piny{$p};

    }

}

$maxy += 300;

# Now, use the slice widths to compute the minimum width of the box.

for ($i=0; $i<$maxy; $i+=100) {

    $w = $bw{$i}{left} + $bw{$i}{labels} + $bw{$i}{right};

    if ($bw{$i}{labels}) {

        $wl = ($bw{$i}{left} + $bw{$i}{labels}/2) * 2;

        $w = $wl if $w < $wl;

        $wl = ($bw{$i}{right} + $bw{$i}{labels}/2) * 2;

        $w = $wl if $w < $wl;

    }

    if ($bw{$i}{left} && $bw{$i}{labels}) {

        $w += 100;

    } elsif ($bw{$i}{left} && $bw{$i}{right}) {

        $w += 200;

    }

    if ($bw{$i}{right} && $bw{$i}{labels}) {

        $w += 100;

    }

    if ($boxwidth < $w) {

        $boxwidth = $w;

    }

}

for ($i = $y{labels}; $i <= 0; $i+=100) {

        my $w = $bw{$i}{labels};

        $w += 100 - ($w%100);

        #$w = (int($w/100) * 100) + (($w/100) > int($w/100))?100:0;

        if ($boxwidth < $w) {

                $boxwidth = $w;

        }

}

#printf STDERR "test: %d\n", $y{labels};

$boxwidth = $w{top} if $boxwidth < $w{top};

$boxwidth = $w{bottom} if $boxwidth < $w{bottom};

# Flip Y coordinates (we count from the top, but symbols coordinates

# are from the bottom).

for $p (keys %pinside) {

    next unless $pinside{$p} =~ /left|right/;

    $piny{$p} = $maxy - $piny{$p} + 300;

}

for $p (keys %pinside) {

    next unless $pinside{$p} =~ /label/;

    $piny{$p} = $maxy + $piny{$p} - $minpin * 200 + 400;

}

$boxwidth = &alignpin($boxwidth);

$boxwidth += 200;

# Adjust the position of the top/bottom pins so that, as a group,

# they're centered.

for $p (keys %pinside) {

    next unless $pinside{$p} =~ /top|bottom/;

    $pinx{$p} += &alignpin(($boxwidth - $w{$pinside{$p}})/2) + 300;

}

# Labels are centered in the box.

# labels have to be top, lef

for $lp ($minpin..-1) {

    #$pinx{$lp} = &alignpin($boxwidth/2) + 300;

    $pinx{$lp} = 300; # + &textlen($pinlabel{$lp})/2;

}

# Version.

print "v 20060123 1\n";

# Symbol box.

printf("B %d %d %d %d 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1\n",

       300, 300, $boxwidth, $maxy);

# These are the hidden labels.

$ax = 300 + $boxwidth;

$ay = 400 + $maxy;

for $a (reverse @attrs) {

    printf("T %d %d 9 10 0 0 0 0 1\n%s\n",

           $ax, $ay, $a);

    $ay += 200;

}

# Now print all the pins.

for $p (sort {$a<=>$b} keys %pinside) {

    next unless $pinside{$p};

    if ($pinside{$p} eq "left") {

        $pinx{$p} = 300;

    }

    if ($pinside{$p} eq "right") {

        $pinx{$p} = 300 + $boxwidth;

    }

    if ($p > 0 && !$saw_pin{$p}) {

        print STDERR "MISSING PIN $p\n";

        $errors++;

    } else {

        printf STDERR ("%3d  %-6s  %4d %4d  %s\n",

                       $p, $pinside{$p}, $pinx{$p}, $piny{$p}, $pinlabel{$p});

    }

    eval "&drawpin_$pinside{\"$p\"} (\"$p\")";

}

# what remains are helper functions; for drawing each type of pin,

# each type of label, etc.

sub drawpin_nc {

}

sub drawpin_top {

    my($pin) = @_;

    $y = $maxy + 300;

    printf("P %d %d %d %d 1 0 0\n",

           $pinx{$pin}, $y+300, $pinx{$pin}, $y);

    print "{\n";

    &pltext($pinx{$pin}, $y-50, 5, $pinlabel{$pin});

    &ntext($pinx{$pin}+50, $y+50, 0, $pin);

    print "}\n";

}

sub drawpin_bottom {

    my($pin) = @_;

    printf("P %d %d %d %d 1 0 0\n",

           $pinx{$pin}, 0, $pinx{$pin}, 300);

    print "{\n";

    &pltext($pinx{$pin}, 350, 3, $pinlabel{$pin});

    &ntext($pinx{$pin}+50, 250, 2, $pin);

    print "}\n";

}

sub drawpin_labels {

    my($pin) = @_;

    &ltext($pinx{$pin}, $piny{$pin}, 0, $pinlabel{$pin});

}

sub circle {

    my ($x, $y) = @_;

    print "V $x $y 50 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1\n";

}

sub drawpin_left {

    my($pin) = @_;

    $x = $pinx{$pin};

    $px = 50;

    if ($bubble{$pin}) {

        $x -= 100;

        &circle($x+50, $piny{$pin});

    }

    if ($edge{$pin}) {

        $px += 100;

        printf("L %d %d %d %d 3 0 0 0 0 0\n",

               $pinx{$pin}, $piny{$pin}-50,

               $pinx{$pin}+100, $piny{$pin});

        printf("L %d %d %d %d 3 0 0 0 0 0\n",

               $pinx{$pin}+100, $piny{$pin},

               $pinx{$pin}, $piny{$pin}+50);

    }

    printf("P %d %d %d %d 1 0 0\n",

           $pinx{$pin} - 300, $piny{$pin}, $x, $piny{$pin});

    print "{\n";

    &pltext($pinx{$pin} + $px, $piny{$pin}, 1, $pinlabel{$pin});

    &ntext($pinx{$pin} -100, $piny{$pin} + 50, 6, $pin);

    print "}\n";

}

sub drawpin_right {

    my($pin) = @_;

    $x = $pinx{$pin};

    $px = 50;

    if ($bubble{$pin}) {

        $x += 100;

        &circle($x-50, $piny{$pin});

    }

    if ($edge{$pin}) {

        $px += 100;

        printf("L %d %d %d %d 3 0 0 0 0 0\n",

               $pinx{$pin}, $piny{$pin}-50,

               $pinx{$pin}-100, $piny{$pin});

        printf("L %d %d %d %d 3 0 0 0 0 0\n",

               $pinx{$pin}-100, $piny{$pin},

               $pinx{$pin}, $piny{$pin}+50);

    }

    printf("P %d %d %d %d 1 0 0\n",

           $pinx{$pin} + 300, $piny{$pin}, $x, $piny{$pin});

    print "{\n";

    &pltext($pinx{$pin} - $px, $piny{$pin}, 7, $pinlabel{$pin});

    &ntext($pinx{$pin} +100, $piny{$pin} + 50, 0, $pin);

    print "}\n";

}

sub ntext {

    my ($x, $y, $a, $s) = @_;

    printf("T %d %d 5 8 1 1 0 %s 1\npinnumber=%s\n", $x, $y, $a, $s);

    printf("T %d %d 5 8 0 1 0 %s 1\npinseq=%s\n", $x, $y, $a, $s);

}

sub pltext {

    my ($x, $y, $a, $s) = @_;

    $s = "pinlabel=$s" unless $s =~ /=/;

    printf("T %d %d 9 10 1 1 0 %s 1\n%s\n", $x, $y, $a, $s);

}

sub ltext {

    my ($x, $y, $a, $s) = @_;

    printf("T %d %d 5 10 1 1 0 %s 1\n%s\n", $x, $y, $a, $s);

}

sub textlen {

    my($t) = @_;

    $t =~ s/^[^=]*=//;

    $t =~ s@\\_@@g;

    return length($t) * 120;

}

sub alignpin {

    my($v) = @_;

    return int(($v + 99) / 100) * 100;

}

exit $errors;