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use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
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use Exporter 'import'; |
use Exporter 'import'; |
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our @EXPORT = qw'$white $black'; |
our @EXPORT = qw'$white $black @flip'; |
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use base qw(Class::Accessor Prefs); |
use base qw(Class::Accessor Prefs); |
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__PACKAGE__->mk_accessors(qw(app event)); |
__PACKAGE__->mk_accessors(qw(app event screen_width screen_height window_width window_height)); |
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=head1 NAME |
=head1 NAME |
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Screen - simulated 256*256 pixels monochrome screen using SDL |
Screen - simulated monochrome screen using SDL |
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=head1 Architecture dependent |
=head1 Architecture dependent |
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You may override following methods if you want to implement keyboard on each |
You may override following methods if you want to implement keyboard on each |
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keypress event. Alternative is to use <read> hook and trap memory access. |
keypress event. Alternative is to use <read> hook and trap memory access. |
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=head2 screen_width |
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Width of emulated screen (256 by default) |
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=head2 screen_height |
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Height of emulated screen (256 by default) |
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=head2 key_down |
=head2 key_down |
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$self->key_down( 'a' ); |
$self->key_down( 'a' ); |
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warn "using default unscaled display\n"; |
warn "using default unscaled display\n"; |
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} |
} |
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$self->screen_width( 256 ) unless defined $self->screen_width; |
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$self->screen_height( 256 ) unless defined $self->screen_height; |
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my $w = $self->screen_width * $self->scale + ( $self->show_mem ? 256 : 0 ); |
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$self->window_width( $w ); |
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my $h = $self->screen_height; |
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# expand screen size to show whole 64k 256*256 memory map |
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$h = 256 if $self->show_mem && $h < 256; |
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$h *= $self->scale; |
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$self->window_height( $h ); |
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$app = SDL::App->new( |
$app = SDL::App->new( |
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-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
-width => $w, |
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-height => 256 * $self->scale, |
-height => $h, |
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-depth => 16, |
-depth => 16, |
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-flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL, |
-flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL, |
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); |
); |
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my $event = SDL::Event->new(); |
my $event = SDL::Event->new(); |
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$self->event( $event ); |
$self->event( $event ); |
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warn "# created SDL::App\n"; |
warn "# created SDL::App with screen ", $self->screen_width, "x", $self->screen_height, " in window ", |
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$self->window_width, "x", $self->window_height, "\n"; |
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} |
} |
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our $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
our $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
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my $self = shift; |
my $self = shift; |
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my $offset = shift; |
my $offset = shift; |
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my $x = $offset & 0xff; |
my $x = $offset & 0xff; |
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$x += 256 * $self->scale; |
$x += $self->screen_width * $self->scale; |
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my $y = $offset >> 8; |
my $y = $offset >> 8; |
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return ($x,$y); |
return ($x,$y); |
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} |
} |
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my $scale = $self->scale || confess "no scale?"; |
my $scale = $self->scale || confess "no scale?"; |
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my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale ); |
my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => $self->screen_width * $scale, -height => $self->screen_height * $scale ); |
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my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale ); |
my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => $self->screen_width * $scale, -height => $self->screen_height * $scale ); |
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if ( $scale > 1 ) { |
if ( $scale > 1 ) { |
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use SDL::Tool::Graphic; |
use SDL::Tool::Graphic; |
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$vram->display_format; |
$vram->display_format; |
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my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => $self->screen_width, -height => $self->window_height ); |
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my $rect_mem = SDL::Rect->new( -x => 256 * $self->scale, -y => 0, -width => 256, -height => 256 ); |
my $rect_mem = SDL::Rect->new( -x => $self->screen_width * $self->scale, -y => 0, -width => 256, -height => 256 ); |
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$vram->blit( $rect, $app, $rect_mem ); |
$vram->blit( $rect, $app, $rect_mem ); |
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=cut |
=cut |
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my $pending_key; |
my $pending_key; |
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my $key_active; |
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my $run_for = 2000; |
my $run_for = 2000; |
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sub key_pressed { |
sub key_pressed { |
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if ( $state ) { |
if ( $state ) { |
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$pending_key = $key; |
$pending_key = $key; |
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$self->key_down( $key ); |
$self->key_down( $key ); |
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$key_active->{$key} = 1; |
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} else { |
} else { |
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undef $pending_key; |
undef $pending_key; |
290 |
$self->key_up( $key ); |
$self->key_up( $key ); |
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$key_active->{$key} = 0; |
292 |
} |
} |
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} |
} |
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return $pending_key; |
return $pending_key; |
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warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n"; |
warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n"; |
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$pending_key = $k; |
$pending_key = $k; |
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$self->key_down( $k ); |
$self->key_down( $k ); |
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$key_active->{$k} = 1; |
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$self->record_session('key_pressed', { $k => 1 }); |
$self->record_session('key_pressed', { $k => 1 }); |
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} |
} |
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} elsif ( $type == SDL_KEYUP ) { |
} elsif ( $type == SDL_KEYUP ) { |
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my $up = $event->key_name(); |
my $up = $event->key_name(); |
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warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n"; |
warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n"; |
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$self->key_up( $up ); |
$self->key_up( $up ); |
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$key_active->{$up} = 0; |
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$self->record_session('key_pressed', { $up => 0 }); |
$self->record_session('key_pressed', { $up => 0 }); |
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undef $pending_key; |
undef $pending_key; |
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} |
} |
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return $pending_key; |
return $pending_key; |
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} |
} |
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=head2 key_active |
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Is key currently pressed on keyboard or in session? |
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$self->key_active( 'left shift', 'right shift', 'a' ); |
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=cut |
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sub key_active { |
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my $self = shift; |
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my @keys = @_; |
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confess "Regexp is no longer supported" if ref($_[0]) eq 'Regexp'; |
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my $active = 0; |
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foreach my $key ( @keys ) { |
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$active++ if $key_active->{$key}; |
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} |
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warn "## key_active(",dump(@keys),") = $active\n" if $active; |
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return $active; |
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} |
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=head2 loop |
=head2 loop |
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Implement CPU run for C<$run_run> cycles inside SDL event loop |
Implement CPU run for C<$run_run> cycles inside SDL event loop |
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} |
} |
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} |
} |
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# helper array to flip bytes for display |
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our @flip; |
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foreach my $i ( 0 .. 255 ) { |
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my $t = 0; |
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$i & 0b00000001 and $t = $t | 0b10000000; |
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$i & 0b00000010 and $t = $t | 0b01000000; |
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$i & 0b00000100 and $t = $t | 0b00100000; |
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$i & 0b00001000 and $t = $t | 0b00010000; |
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$i & 0b00010000 and $t = $t | 0b00001000; |
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$i & 0b00100000 and $t = $t | 0b00000100; |
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$i & 0b01000000 and $t = $t | 0b00000010; |
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$i & 0b10000000 and $t = $t | 0b00000001; |
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#warn "$i = $t\n"; |
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$flip[$i] = $t; |
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} |
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=head1 SEE ALSO |
=head1 SEE ALSO |
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L<Orao> is sample implementation using this module |
L<Orao> is sample implementation using this module |