9 |
use SDL::Rect; |
use SDL::Rect; |
10 |
use SDL::Color; |
use SDL::Color; |
11 |
|
|
12 |
use base qw(Class::Accessor); |
use Carp qw/confess/; |
|
__PACKAGE__->mk_accessors(qw(debug scale show_mem run_for mem_dump trace)); |
|
13 |
|
|
14 |
=head2 init |
use base qw(Class::Accessor Prefs); |
15 |
|
__PACKAGE__->mk_accessors(qw(app)); |
16 |
|
|
17 |
|
=head1 NAME |
18 |
|
|
19 |
|
Screen - simulated 256*256 pixels monochrome screen using SDL |
20 |
|
|
21 |
|
=head2 open_screen |
22 |
|
|
23 |
Open simulated screen |
Open simulated screen |
24 |
|
|
26 |
|
|
27 |
our $app; |
our $app; |
28 |
|
|
29 |
sub init { |
sub open_screen { |
30 |
my $self = shift; |
my $self = shift; |
31 |
|
|
32 |
|
$self->prefs; |
33 |
|
|
34 |
|
if ( ! $self->scale ) { |
35 |
|
$self->scale( 1 ); |
36 |
|
warn "using default unscaled display\n"; |
37 |
|
} |
38 |
|
|
39 |
$app = SDL::App->new( |
$app = SDL::App->new( |
40 |
-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
41 |
-height => 256 * $self->scale, |
-height => 256 * $self->scale, |
44 |
#$app->grab_input( 0 ); |
#$app->grab_input( 0 ); |
45 |
|
|
46 |
warn "# created SDL::App\n"; |
warn "# created SDL::App\n"; |
47 |
|
$self->app( $app ); |
48 |
} |
} |
49 |
|
|
50 |
my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
104 |
|
|
105 |
=cut |
=cut |
106 |
|
|
107 |
|
my $_vram_counter; |
108 |
|
|
109 |
sub vram { |
sub vram { |
110 |
my ( $self, $offset, $byte ) = @_; |
my ( $self, $offset, $byte ) = @_; |
111 |
my $x = ( $offset % 32 ) << 3; |
my $x = ( $offset % 32 ) << 3; |
112 |
my $y = $offset >> 5; |
my $y = $offset >> 5; |
113 |
my $mask = 1; |
my $mask = 1; |
114 |
|
my $scale = $self->scale; |
115 |
|
|
116 |
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 $self->trace; |
117 |
|
|
118 |
foreach ( 0 .. 7 ) { |
foreach ( 0 .. 7 ) { |
119 |
p($x + $_, $y, $byte & $mask ); |
my $on = $byte & $mask; |
120 |
|
if ( $scale == 1 ) { |
121 |
|
$app->pixel( $x + $_, $y, $on ? $white : $black ); |
122 |
|
} else { |
123 |
|
$self->p($x + $_, $y, $on ); |
124 |
|
} |
125 |
$mask = $mask << 1; |
$mask = $mask << 1; |
126 |
} |
} |
127 |
|
|
128 |
|
$app->sync if ( $_vram_counter++ % 10 == 0 ); |
129 |
|
} |
130 |
|
|
131 |
|
=head2 mmap_pixel |
132 |
|
|
133 |
|
Draw pixel in memory map |
134 |
|
|
135 |
|
$self->mmap_pixel( $addr, $r, $g, $b ); |
136 |
|
|
137 |
|
=cut |
138 |
|
|
139 |
|
# keep accesses to memory |
140 |
|
my $_mem_stat; |
141 |
|
|
142 |
|
sub mmap_pixel { |
143 |
|
my ( $self, $addr, $r, $g, $b ) = @_; |
144 |
|
return unless $self->show_mem && $self->app; |
145 |
|
|
146 |
|
my ( $x, $y ) = $self->mem_xy( $addr ); |
147 |
|
warn sprintf "## mem %04x %02x %02x %02d*%02d\n", $addr, $r, $g, $x, $y if $self->debug; |
148 |
|
|
149 |
|
my $col = SDL::Color->new( -r => $r, -g => $g, -b => $b ); |
150 |
|
$self->app->pixel( $x, $y, $col ); |
151 |
|
|
152 |
|
$_mem_stat++; |
153 |
|
if ( $_mem_stat % 1000 == 0 ) { |
154 |
|
$self->app->sync; |
155 |
|
} |
156 |
|
} |
157 |
|
|
158 |
|
|
159 |
|
=head2 sync |
160 |
|
|
161 |
|
$self->sync; |
162 |
|
|
163 |
|
=cut |
164 |
|
|
165 |
|
sub sync { |
166 |
|
$app->sync; |
167 |
|
} |
168 |
|
|
169 |
|
=head2 render |
170 |
|
|
171 |
|
$self->render( @video_memory ); |
172 |
|
|
173 |
|
=cut |
174 |
|
|
175 |
|
sub render { |
176 |
|
my $self = shift; |
177 |
|
|
178 |
|
die "this function isn't supported if scale isn't 1" unless $self->scale == 1; |
179 |
|
|
180 |
|
$app->lock; |
181 |
|
|
182 |
|
my ( $x, $y ) = ( 0,0 ); |
183 |
|
|
184 |
|
foreach my $b ( @_ ) { |
185 |
|
foreach my $p ( split(//, unpack("B8",pack("C",$b)) ) ) { |
186 |
|
$app->pixel( $x, $y, $p ? $white : $black ); |
187 |
|
$x++; |
188 |
|
} |
189 |
|
if ( $x == 256 ) { |
190 |
|
$x = 0; |
191 |
|
$y++; |
192 |
|
} |
193 |
|
} |
194 |
|
|
195 |
|
$app->unlock; |
196 |
|
$app->sync; |
197 |
|
|
198 |
|
warn "Screen::render over\n"; |
199 |
} |
} |
200 |
|
|
201 |
|
=head1 SEE ALSO |
202 |
|
|
203 |
|
L<Orao> is sample implementation using this module |
204 |
|
|
205 |
|
=head1 AUTHOR |
206 |
|
|
207 |
|
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
208 |
|
|
209 |
|
=head1 COPYRIGHT & LICENSE |
210 |
|
|
211 |
|
Copyright 2007 Dobrica Pavlinusic, All Rights Reserved. |
212 |
|
|
213 |
|
This program is free software; you can redistribute it and/or modify it |
214 |
|
under the same terms as Perl itself. |
215 |
|
|
216 |
|
=cut |
217 |
|
1; |