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our @EXPORT = qw'$white $black @flip'; |
our @EXPORT = qw'$white $black @flip'; |
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19 |
use base qw(Class::Accessor Prefs); |
use base qw(Class::Accessor Prefs); |
20 |
__PACKAGE__->mk_accessors(qw(app event)); |
__PACKAGE__->mk_accessors(qw(app event screen_width screen_height window_width window_height)); |
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22 |
=head1 NAME |
=head1 NAME |
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24 |
Screen - simulated 256*256 pixels monochrome screen using SDL |
Screen - simulated monochrome screen using SDL |
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26 |
=head1 Architecture dependent |
=head1 Architecture dependent |
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28 |
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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31 |
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=head2 screen_width |
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33 |
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Width of emulated screen (256 by default) |
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35 |
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=head2 screen_height |
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37 |
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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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41 |
$self->key_down( 'a' ); |
$self->key_down( 'a' ); |
76 |
warn "using default unscaled display\n"; |
warn "using default unscaled display\n"; |
77 |
} |
} |
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79 |
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$self->screen_width( 256 ) unless defined $self->screen_width; |
80 |
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$self->screen_height( 256 ) unless defined $self->screen_height; |
81 |
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82 |
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my $w = $self->screen_width * $self->scale + ( $self->show_mem ? 256 : 0 ); |
83 |
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$self->window_width( $w ); |
84 |
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85 |
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my $h = $self->screen_height; |
86 |
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# expand screen size to show whole 64k 256*256 memory map |
87 |
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$h = 256 if $self->show_mem && $h < 256; |
88 |
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$h *= $self->scale; |
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$self->window_height( $h ); |
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91 |
$app = SDL::App->new( |
$app = SDL::App->new( |
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-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
-width => $w, |
93 |
-height => 256 * $self->scale, |
-height => $h, |
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-depth => 16, |
-depth => 16, |
95 |
-flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL, |
-flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL, |
96 |
); |
); |
103 |
my $event = SDL::Event->new(); |
my $event = SDL::Event->new(); |
104 |
$self->event( $event ); |
$self->event( $event ); |
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106 |
warn "# created SDL::App\n"; |
warn "# created SDL::App with screen ", $self->screen_width, "x", $self->screen_height, " in window ", |
107 |
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$self->window_width, "x", $self->window_height, "\n"; |
108 |
} |
} |
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110 |
our $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
our $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
126 |
my $self = shift; |
my $self = shift; |
127 |
my $offset = shift; |
my $offset = shift; |
128 |
my $x = $offset & 0xff; |
my $x = $offset & 0xff; |
129 |
$x += 256 * $self->scale; |
$x += $self->screen_width * $self->scale; |
130 |
my $y = $offset >> 8; |
my $y = $offset >> 8; |
131 |
return ($x,$y); |
return ($x,$y); |
132 |
} |
} |
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203 |
my $scale = $self->scale || confess "no scale?"; |
my $scale = $self->scale || confess "no scale?"; |
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205 |
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 ); |
206 |
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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208 |
if ( $scale > 1 ) { |
if ( $scale > 1 ) { |
209 |
use SDL::Tool::Graphic; |
use SDL::Tool::Graphic; |
244 |
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245 |
$vram->display_format; |
$vram->display_format; |
246 |
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247 |
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 ); |
248 |
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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250 |
$vram->blit( $rect, $app, $rect_mem ); |
$vram->blit( $rect, $app, $rect_mem ); |
251 |
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374 |
} |
} |
375 |
} |
} |
376 |
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377 |
# helper array to flip bytes for display |
=head2 @flip |
378 |
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379 |
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Exported helper array used to flip bytes (from character roms for example) |
380 |
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381 |
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my $flipped = $flip[ $byte ]; |
382 |
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383 |
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=cut |
384 |
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385 |
our @flip; |
our @flip; |
386 |
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387 |
foreach my $i ( 0 .. 255 ) { |
foreach my $i ( 0 .. 255 ) { |