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use Carp qw/confess/; |
use Carp qw/confess/; |
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use base qw(Class::Accessor); |
use base qw(Class::Accessor Prefs); |
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__PACKAGE__->mk_accessors(qw(debug scale show_mem mem_dump trace app)); |
__PACKAGE__->mk_accessors(qw(app)); |
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=head1 NAME |
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Screen - simulated 256*256 pixels monochrome screen using SDL |
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=head2 open_screen |
=head2 open_screen |
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sub open_screen { |
sub open_screen { |
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my $self = shift; |
my $self = shift; |
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$self->prefs; |
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if ( ! $self->scale ) { |
if ( ! $self->scale ) { |
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$self->scale( 1 ); |
$self->scale( 1 ); |
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warn "using default unscaled display\n"; |
warn "using default unscaled display\n"; |
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my $mask = 1; |
my $mask = 1; |
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my $scale = $self->scale; |
my $scale = $self->scale; |
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# printf "## vram %04x %02x*%02x %02x\n", $offset, $x, $y, $byte if $self->trace; |
printf "## vram %04x %02x*%02x %02x\n", $offset, $x, $y, $byte if $self->trace; |
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foreach ( 0 .. 7 ) { |
foreach ( 0 .. 7 ) { |
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my $on = $byte & $mask; |
my $on = $byte & $mask; |
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return unless $self->show_mem && $self->app; |
return unless $self->show_mem && $self->app; |
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|
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my ( $x, $y ) = $self->mem_xy( $addr ); |
my ( $x, $y ) = $self->mem_xy( $addr ); |
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warn sprintf "## mem %04x %02x %02x %02d*%02d\n", $addr, $r, $g, $x, $y if $self->trace; |
warn sprintf "## mem %04x %02x %02x %02d*%02d\n", $addr, $r, $g, $x, $y if $self->debug; |
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my $col = SDL::Color->new( -r => $r, -g => $g, -b => $b ); |
my $col = SDL::Color->new( -r => $r, -g => $g, -b => $b ); |
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$self->app->pixel( $x, $y, $col ); |
$self->app->pixel( $x, $y, $col ); |
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$app->sync; |
$app->sync; |
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} |
} |
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=head2 render |
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$self->render( @video_memory ); |
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=cut |
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sub render { |
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my $self = shift; |
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die "this function isn't supported if scale isn't 1" unless $self->scale == 1; |
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$app->lock; |
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my ( $x, $y ) = ( 0,0 ); |
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foreach my $b ( @_ ) { |
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foreach my $p ( split(//, unpack("B8",pack("C",$b)) ) ) { |
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$app->pixel( $x, $y, $p ? $white : $black ); |
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$x++; |
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} |
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if ( $x == 256 ) { |
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$x = 0; |
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$y++; |
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} |
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} |
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$app->unlock; |
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$app->sync; |
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warn "Screen::render over\n"; |
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} |
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=head1 SEE ALSO |
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L<Orao> is sample implementation using this module |
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=head1 AUTHOR |
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Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
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=head1 COPYRIGHT & LICENSE |
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Copyright 2007 Dobrica Pavlinusic, All Rights Reserved. |
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This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
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=cut |
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1; |
1; |