13 |
use Carp qw/confess/; |
use Carp qw/confess/; |
14 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
15 |
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|
16 |
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use Exporter 'import'; |
17 |
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our @EXPORT = qw'$white $black @flip'; |
18 |
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|
19 |
use base qw(Class::Accessor Prefs); |
use base qw(Class::Accessor Prefs); |
20 |
__PACKAGE__->mk_accessors(qw(app event)); |
__PACKAGE__->mk_accessors(qw(app event screen_width screen_height window_width window_height)); |
21 |
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|
22 |
=head1 NAME |
=head1 NAME |
23 |
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|
24 |
Screen - simulated 256*256 pixels monochrome screen using SDL |
Screen - simulated monochrome screen using SDL |
25 |
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26 |
|
=head1 Architecture dependent |
27 |
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28 |
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You may override following methods if you want to implement keyboard on each |
29 |
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keypress event. Alternative is to use <read> hook and trap memory access. |
30 |
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31 |
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=head2 screen_width |
32 |
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33 |
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Width of emulated screen (256 by default) |
34 |
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35 |
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=head2 screen_height |
36 |
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37 |
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Height of emulated screen (256 by default) |
38 |
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39 |
|
=head2 key_down |
40 |
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41 |
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$self->key_down( 'a' ); |
42 |
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43 |
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=cut |
44 |
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45 |
|
sub key_down {} |
46 |
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47 |
|
=head2 key_up |
48 |
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49 |
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$self->key_up( 'a' ); |
50 |
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51 |
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=cut |
52 |
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53 |
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sub key_up {} |
54 |
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55 |
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56 |
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=head1 Architecture independent |
57 |
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58 |
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You don't need to override any of following function in your architecture, |
59 |
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but you might want to call them. |
60 |
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|
61 |
=head2 open_screen |
=head2 open_screen |
62 |
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|
76 |
warn "using default unscaled display\n"; |
warn "using default unscaled display\n"; |
77 |
} |
} |
78 |
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79 |
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$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 *= $self->scale; |
89 |
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$self->window_height( $h ); |
90 |
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|
91 |
$app = SDL::App->new( |
$app = SDL::App->new( |
92 |
-width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), |
-width => $w, |
93 |
-height => 256 * $self->scale, |
-height => $h, |
94 |
-depth => 16, |
-depth => 16, |
95 |
|
# -flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL, |
96 |
); |
); |
97 |
#$app->grab_input( SDL_GRAB_QUERY ); |
#$app->grab_input( SDL_GRAB_QUERY ); |
98 |
$app->grab_input( SDL_GRAB_OFF ); |
$app->grab_input( SDL::App::SDL_GRAB_OFF ); |
99 |
|
$app->title( ref($self) ); |
100 |
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|
101 |
$self->app( $app ); |
$self->app( $app ); |
102 |
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103 |
my $event = SDL::Event->new(); |
my $event = SDL::Event->new(); |
104 |
$self->event( $event ); |
$self->event( $event ); |
105 |
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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 |
} |
} |
109 |
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|
110 |
my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
our $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
111 |
my $black = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 ); |
our $black = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 ); |
112 |
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|
113 |
my $red = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 ); |
my $red = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 ); |
114 |
my $green = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 ); |
my $green = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 ); |
115 |
my $blue = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff ); |
my $blue = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff ); |
116 |
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my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
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my $rect_mem = SDL::Rect->new( -x => 256, -y => 0, -width => 256, -height => 256 ); |
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=head2 p |
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$screen->p( $x, $y, 1 ); |
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=cut |
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sub p { |
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my $self = shift; |
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my ($x,$y,$w) = (@_); |
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warn "p($x,$y,$w)\n" if $self->debug; |
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my $scale = $self->scale; |
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my $rect = SDL::Rect->new( |
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-height => $scale, |
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-width => $scale, |
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-x => $x * $scale, |
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-y => $y * $scale, |
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); |
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$app->fill( $rect, $w ? $white : $black ); |
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$app->update( $rect ); |
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} |
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|
117 |
=head2 mem_xy |
=head2 mem_xy |
118 |
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|
119 |
Helper to return x and y coordinates in memory map |
Helper to return x and y coordinates in memory map |
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,$y); |
132 |
} |
} |
133 |
|
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=head2 vram |
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Push byte to video memory and draw it |
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$screen->vram( $offset, $byte ); |
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=cut |
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my $_vram_counter; |
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sub vram { |
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|
my ( $self, $offset, $byte ) = @_; |
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|
my $x = ( $offset % 32 ) << 3; |
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|
my $y = $offset >> 5; |
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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; |
|
|
|
|
|
foreach ( 0 .. 7 ) { |
|
|
my $on = $byte & $mask; |
|
|
if ( $scale == 1 ) { |
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|
$app->pixel( $x + $_, $y, $on ? $white : $black ); |
|
|
} else { |
|
|
$self->p($x + $_, $y, $on ); |
|
|
} |
|
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$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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|
134 |
=head2 mmap_pixel |
=head2 mmap_pixel |
135 |
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|
136 |
Draw pixel in memory map |
Draw pixel in memory map |
169 |
$app->sync; |
$app->sync; |
170 |
} |
} |
171 |
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|
172 |
=head2 render |
=head2 render_vram |
173 |
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|
174 |
Render one frame of video ram |
Render one frame of video ram |
175 |
|
|
176 |
$self->render( @video_memory ); |
$self->render_vram; |
177 |
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|
178 |
=cut |
=cut |
179 |
|
|
180 |
sub render { |
sub render_vram { |
181 |
my $self = shift; |
my $self = shift; |
182 |
|
|
183 |
die "this function isn't supported if scale isn't 1" unless $self->scale == 1; |
confess "please implement $self::render_vram"; |
184 |
|
} |
185 |
|
|
|
my $pixels = pack("C*", @_); |
|
186 |
|
|
187 |
my $vram = SDL::Surface->new( |
=head2 render_frame |
188 |
-width => 256, |
|
189 |
-height => 256, |
Render one frame of video ram |
190 |
-depth => 1, # 1 bit per pixel |
|
191 |
-pitch => 32, # bytes per line |
$self->render_frame( $vram_sdl_surface ); |
192 |
-from => $pixels, |
|
193 |
); |
=cut |
194 |
$vram->set_colors( 0, $black, $white, $red ); |
|
195 |
|
sub render_frame { |
196 |
|
my $self = shift; |
197 |
|
|
198 |
|
my $vram = shift; |
199 |
|
confess "need SDL::Surface as argument" unless ref($vram) eq 'SDL::Surface'; |
200 |
|
|
201 |
$vram->display_format; |
$vram->display_format; |
202 |
|
|
203 |
my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); |
my $scale = $self->scale || confess "no scale?"; |
204 |
$vram->blit( $rect, $app, $rect_screen ); |
|
205 |
|
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 => $self->screen_width * $scale, -height => $self->screen_height * $scale ); |
207 |
|
|
208 |
|
if ( $scale > 1 ) { |
209 |
|
use SDL::Tool::Graphic; |
210 |
|
# last parametar is anti-alias |
211 |
|
my $zoomed = SDL::Tool::Graphic->zoom( $vram, $self->scale, $self->scale, 1 ); |
212 |
|
$zoomed->blit( $rect, $app, $rect_screen ); |
213 |
|
} else { |
214 |
|
$vram->blit( $rect, $app, $rect_screen ); |
215 |
|
} |
216 |
|
|
217 |
$app->sync; |
$app->sync; |
218 |
} |
} |
219 |
|
|
220 |
|
|
221 |
=head2 render_mem |
=head2 render_mem |
222 |
|
|
223 |
$self->render_mem( @ram ); |
$self->render_mem( @mem ); |
224 |
|
$self->render_mem( $memory_bytes ); |
225 |
|
|
226 |
=cut |
=cut |
227 |
|
|
230 |
|
|
231 |
return unless $self->show_mem; |
return unless $self->show_mem; |
232 |
|
|
233 |
my $pixels = pack("C*", @_); |
my $pixels; |
234 |
|
if ( defined $# ) { |
235 |
|
$pixels = pack("C*", @_); |
236 |
|
} else { |
237 |
|
$pixels = shift; |
238 |
|
} |
239 |
|
|
240 |
my $vram = SDL::Surface->new( |
my $vram = SDL::Surface->new( |
241 |
-width => 256, |
-width => 256, |
250 |
|
|
251 |
$vram->display_format; |
$vram->display_format; |
252 |
|
|
253 |
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 ); |
254 |
|
my $rect_mem = SDL::Rect->new( -x => $self->screen_width * $self->scale, -y => 0, -width => 256, -height => 256 ); |
255 |
|
|
256 |
$vram->blit( $rect, $app, $rect_mem ); |
$vram->blit( $rect, $app, $rect_mem ); |
257 |
|
|
258 |
$app->sync; |
$app->sync; |
272 |
=cut |
=cut |
273 |
|
|
274 |
my $pending_key; |
my $pending_key; |
275 |
|
my $key_active; |
276 |
my $run_for = 2000; |
my $run_for = 2000; |
277 |
|
|
|
my $key_down; |
|
|
|
|
|
sub key_down { |
|
|
my $self = shift; |
|
|
my $key = shift; |
|
|
warn "key_down($key) = ",$key_down->{$key}, "\n" if $self->debug; |
|
|
return $key_down->{$key}; |
|
|
} |
|
|
|
|
278 |
sub key_pressed { |
sub key_pressed { |
279 |
my $self = shift; |
my $self = shift; |
280 |
|
|
283 |
|
|
284 |
my $event = $self->event || confess "no event?"; |
my $event = $self->event || confess "no event?"; |
285 |
|
|
286 |
$event->poll || return $pending_key; |
if ( ! $event->poll ) { |
287 |
|
return $pending_key unless $self->can('session_event'); |
288 |
|
if ( my $h = $self->session_event('key_pressed') ) { |
289 |
|
my ( $key, $state ) = %$h; |
290 |
|
if ( $state ) { |
291 |
|
$pending_key = $key; |
292 |
|
$self->key_down( $key ); |
293 |
|
$key_active->{$key} = 1; |
294 |
|
} else { |
295 |
|
undef $pending_key; |
296 |
|
$self->key_up( $key ); |
297 |
|
$key_active->{$key} = 0; |
298 |
|
} |
299 |
|
} |
300 |
|
return $pending_key; |
301 |
|
} |
302 |
|
|
303 |
my $type = $event->type(); |
my $type = $event->type(); |
304 |
|
|
305 |
exit if ($type == SDL_QUIT); |
exit if ($type == SDL::App::SDL_QUIT); |
306 |
|
|
307 |
my $k = $pending_key; |
my $k = $pending_key; |
308 |
|
|
309 |
if ($type == SDL_KEYDOWN) { |
if ($type == SDL::App::SDL_KEYDOWN) { |
310 |
$k = $event->key_name(); |
$k = $event->key_name(); |
|
$key_down->{$k}++; |
|
311 |
if ( $k eq 'escape' ) { |
if ( $k eq 'escape' ) { |
312 |
$run_for = $self->cli; |
$run_for = $self->cli; |
313 |
warn "will check event loop every $run_for cycles\n"; |
warn "will check event loop every $run_for cycles\n"; |
315 |
} else { |
} else { |
316 |
warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n"; |
warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n"; |
317 |
$pending_key = $k; |
$pending_key = $k; |
318 |
|
$self->key_down( $k ); |
319 |
|
$key_active->{$k} = 1; |
320 |
|
$self->record_session('key_pressed', { $k => 1 }); |
321 |
} |
} |
322 |
} elsif ( $type == SDL_KEYUP ) { |
} elsif ( $type == SDL::App::SDL_KEYUP ) { |
323 |
my $up = $event->key_name(); |
my $up = $event->key_name(); |
|
$key_down->{$up} = 0; |
|
324 |
warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n"; |
warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n"; |
325 |
|
$self->key_up( $up ); |
326 |
|
$key_active->{$up} = 0; |
327 |
|
$self->record_session('key_pressed', { $up => 0 }); |
328 |
undef $pending_key; |
undef $pending_key; |
329 |
} |
} |
330 |
|
|
331 |
warn "key_pressed = $pending_key\n" if $pending_key; |
warn "key_pressed = $pending_key\n" if ( $pending_key ); |
332 |
|
|
333 |
return $pending_key; |
return $pending_key; |
334 |
} |
} |
335 |
|
|
336 |
|
=head2 key_active |
337 |
|
|
338 |
|
Is key currently pressed on keyboard or in session? |
339 |
|
|
340 |
|
$self->key_active( 'left shift', 'right shift', 'a' ); |
341 |
|
|
342 |
|
=cut |
343 |
|
|
344 |
|
sub key_active { |
345 |
|
my $self = shift; |
346 |
|
my @keys = @_; |
347 |
|
confess "Regexp is no longer supported" if ref($_[0]) eq 'Regexp'; |
348 |
|
|
349 |
|
my $active = 0; |
350 |
|
foreach my $key ( @keys ) { |
351 |
|
$active++ if $key_active->{$key}; |
352 |
|
} |
353 |
|
|
354 |
|
warn "## key_active(",dump(@keys),") = $active\n" if $active; |
355 |
|
return $active; |
356 |
|
} |
357 |
|
|
358 |
=head2 loop |
=head2 loop |
359 |
|
|
360 |
Implement SDL event loop |
Implement CPU run for C<$run_run> cycles inside SDL event loop |
361 |
|
|
362 |
|
$self->loop( sub { |
363 |
|
my $run_for = shift; |
364 |
|
CPU::exec( $run_for ); |
365 |
|
$self->render_vram; |
366 |
|
} ); |
367 |
|
|
368 |
=cut |
=cut |
369 |
|
|
370 |
sub loop { |
sub loop { |
371 |
my $self = shift; |
my $self = shift; |
372 |
my $event = SDL::Event->new(); |
my $exec = shift; |
373 |
|
|
374 |
|
confess "need coderef as argument" unless ref($exec) eq 'CODE'; |
375 |
|
my $event = SDL::Event->new(); |
376 |
|
|
|
MAIN_LOOP: |
|
377 |
while ( 1 ) { |
while ( 1 ) { |
378 |
$self->key_pressed( 1 ); |
$self->key_pressed( 1 ); |
379 |
M6502::exec($run_for); |
$exec->($run_for); |
380 |
} |
} |
381 |
} |
} |
382 |
|
|
383 |
|
=head2 @flip |
384 |
|
|
385 |
|
Exported helper array used to flip bytes (from character roms for example) |
386 |
|
|
387 |
|
my $flipped = $flip[ $byte ]; |
388 |
|
|
389 |
|
=cut |
390 |
|
|
391 |
|
our @flip; |
392 |
|
|
393 |
|
foreach my $i ( 0 .. 255 ) { |
394 |
|
my $t = 0; |
395 |
|
$i & 0b00000001 and $t = $t | 0b10000000; |
396 |
|
$i & 0b00000010 and $t = $t | 0b01000000; |
397 |
|
$i & 0b00000100 and $t = $t | 0b00100000; |
398 |
|
$i & 0b00001000 and $t = $t | 0b00010000; |
399 |
|
$i & 0b00010000 and $t = $t | 0b00001000; |
400 |
|
$i & 0b00100000 and $t = $t | 0b00000100; |
401 |
|
$i & 0b01000000 and $t = $t | 0b00000010; |
402 |
|
$i & 0b10000000 and $t = $t | 0b00000001; |
403 |
|
#warn "$i = $t\n"; |
404 |
|
$flip[$i] = $t; |
405 |
|
} |
406 |
|
|
407 |
=head1 SEE ALSO |
=head1 SEE ALSO |
408 |
|
|
409 |
L<Orao> is sample implementation using this module |
L<Orao> is sample implementation using this module |
420 |
under the same terms as Perl itself. |
under the same terms as Perl itself. |
421 |
|
|
422 |
=cut |
=cut |
423 |
|
|
424 |
1; |
1; |