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use SDL::App; |
use SDL::App; |
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use SDL::Rect; |
use SDL::Rect; |
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use SDL::Color; |
use SDL::Color; |
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use SDL::Constants; |
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use base qw(Class::Accessor); |
use Carp qw/confess/; |
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__PACKAGE__->mk_accessors(qw(debug scale show_mem run_for mem_dump trace)); |
use Data::Dump qw/dump/; |
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=head2 init |
use base qw(Class::Accessor Prefs); |
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__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 |
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Open simulated screen |
Open simulated screen |
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our $app; |
our $app; |
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sub init { |
sub open_screen { |
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my $self = shift; |
my $self = shift; |
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$self->prefs; |
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if ( ! $self->scale ) { |
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$self->scale( 1 ); |
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warn "using default unscaled display\n"; |
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} |
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$app = SDL::App->new( |
$app = SDL::App->new( |
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-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
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-height => 256 * $self->scale, |
-height => 256 * $self->scale, |
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-depth => 16, |
-depth => 16, |
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); |
); |
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#$app->grab_input( 0 ); |
#$app->grab_input( SDL_GRAB_QUERY ); |
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$app->grab_input( SDL_GRAB_OFF ); |
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warn "# created SDL::App\n"; |
warn "# created SDL::App\n"; |
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$self->app( $app ); |
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} |
} |
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my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
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=cut |
=cut |
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my $_vram_counter; |
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sub vram { |
sub vram { |
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my ( $self, $offset, $byte ) = @_; |
my ( $self, $offset, $byte ) = @_; |
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my $x = ( $offset % 32 ) << 3; |
my $x = ( $offset % 32 ) << 3; |
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my $y = $offset >> 5; |
my $y = $offset >> 5; |
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my $mask = 1; |
my $mask = 1; |
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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 $self->trace; |
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foreach ( 0 .. 7 ) { |
foreach ( 0 .. 7 ) { |
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p($x + $_, $y, $byte & $mask ); |
my $on = $byte & $mask; |
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if ( $scale == 1 ) { |
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$app->pixel( $x + $_, $y, $on ? $white : $black ); |
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} else { |
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$self->p($x + $_, $y, $on ); |
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} |
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$mask = $mask << 1; |
$mask = $mask << 1; |
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} |
} |
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$app->sync if ( $_vram_counter++ % 10 == 0 ); |
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} |
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=head2 mmap_pixel |
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Draw pixel in memory map |
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$self->mmap_pixel( $addr, $r, $g, $b ); |
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=cut |
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# keep accesses to memory |
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my $_mem_stat; |
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sub mmap_pixel { |
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my ( $self, $addr, $r, $g, $b ) = @_; |
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return unless $self->show_mem && $self->app; |
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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->debug; |
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my $col = SDL::Color->new( -r => $r, -g => $g, -b => $b ); |
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$self->app->pixel( $x, $y, $col ); |
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$_mem_stat++; |
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if ( $_mem_stat % 1000 == 0 ) { |
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$self->app->sync; |
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} |
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} |
} |
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=head2 sync |
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$self->sync; |
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=cut |
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sub sync { |
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$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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my $pixels = pack("C*", @_); |
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my $vram = SDL::Surface->new( |
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-width => 256, |
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-height => 256, |
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-depth => 1, # 1 bit per pixel |
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-pitch => 32, # bytes per line |
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-from => $pixels, |
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); |
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$vram->set_colors( 0, $black, $white, $red ); |
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$vram->display_format; |
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my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
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$vram->blit( $rect, $app, $rect ); |
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$app->sync; |
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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; |