/[VRac]/Screen.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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M6502/Screen.pm revision 110 by dpavlin, Fri Aug 3 12:21:47 2007 UTC Screen.pm revision 152 by dpavlin, Sun Aug 5 15:24:22 2007 UTC
# Line 12  use SDL::Constants; Line 12  use SDL::Constants;
12    
13  use Carp qw/confess/;  use Carp qw/confess/;
14  use Data::Dump qw/dump/;  use Data::Dump qw/dump/;
15  use M6502 qw'@mem';  
16    use Exporter 'import';
17    our @EXPORT = qw'$white $black';
18    
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));
# Line 43  sub open_screen { Line 45  sub open_screen {
45                  -width  => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ),                  -width  => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ),
46                  -height => 256 * $self->scale,                  -height => 256 * $self->scale,
47                  -depth  => 16,                  -depth  => 16,
48                    -flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL,
49          );          );
50          #$app->grab_input( SDL_GRAB_QUERY );          #$app->grab_input( SDL_GRAB_QUERY );
51          $app->grab_input( SDL_GRAB_OFF );          $app->grab_input( SDL_GRAB_OFF );
52            $app->title( ref($self) . ' ' . $self::VERSION );
53    
54          $self->app( $app );          $self->app( $app );
55    
# Line 55  sub open_screen { Line 59  sub open_screen {
59          warn "# created SDL::App\n";          warn "# created SDL::App\n";
60  }  }
61    
62  my $white       = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff );  our $white      = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff );
63  my $black       = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 );  our $black      = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 );
64    
65  my $red         = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 );  my $red         = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 );
66  my $green       = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 );  my $green       = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 );
67  my $blue        = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff );  my $blue        = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff );
68    
 my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 );  
 my $rect_mem = SDL::Rect->new( -x => 256, -y => 0, -width => 256, -height => 256 );  
   
 =head2 p  
   
  $screen->p( $x, $y, 1 );  
   
 =cut  
   
 sub p {  
         my $self = shift;  
   
         my ($x,$y,$w) = (@_);  
   
         warn "p($x,$y,$w)\n" if $self->debug;  
   
         my $scale = $self->scale;  
         my $rect = SDL::Rect->new(  
                 -height => $scale,  
                 -width  => $scale,  
                 -x      => $x * $scale,  
                 -y      => $y * $scale,  
         );  
   
         $app->fill( $rect, $w ? $white : $black );  
         $app->update( $rect );  
 }  
   
69  =head2 mem_xy  =head2 mem_xy
70    
71  Helper to return x and y coordinates in memory map  Helper to return x and y coordinates in memory map
# Line 149  sub sync { Line 125  sub sync {
125    
126  Render one frame of video ram  Render one frame of video ram
127    
128    $self->render_vram( @video_memory );    $self->render_vram;
129    
130  =cut  =cut
131    
132  my @flip;  sub render_vram {
133            my $self = shift;
134    
135  foreach my $i ( 0 .. 255 ) {          confess "please implement $self::render_vram";
         my $t = 0;  
         $i & 0b00000001 and $t = $t | 0b10000000;  
         $i & 0b00000010 and $t = $t | 0b01000000;  
         $i & 0b00000100 and $t = $t | 0b00100000;  
         $i & 0b00001000 and $t = $t | 0b00010000;  
         $i & 0b00010000 and $t = $t | 0b00001000;  
         $i & 0b00100000 and $t = $t | 0b00000100;  
         $i & 0b01000000 and $t = $t | 0b00000010;  
         $i & 0b10000000 and $t = $t | 0b00000001;  
         #warn "$i = $t\n";  
         $flip[$i] = $t;  
136  }  }
137    
138    
139  sub render_vram {  =head2 render_frame
         my $self = shift;  
140    
141          return unless $self->booted;  Render one frame of video ram
142    
143          die "this function isn't supported if scale isn't 1" unless $self->scale == 1;    $self->render_frame( $vram_sdl_surface );
144    
145          confess "no data?" unless (@_);  =cut
         confess "screen size not 256*256/8 but ",($#_+1) unless (($#_+1) == (256*256/8));  
146    
147    sub render_frame {
148            my $self = shift;
149    
150          my $pixels = pack("C*", map { $flip[$_] } @_);          my $vram = shift;
151            confess "need SDL::Surface as argument" unless ref($vram) eq 'SDL::Surface';
152    
         my $vram = SDL::Surface->new(  
                 -width => 256,  
                 -height => 256,  
                 -depth => 1,    # 1 bit per pixel  
                 -pitch => 32,   # bytes per line  
                 -from => $pixels,  
         );  
         $vram->set_colors( 0, $black, $white, $red );  
153          $vram->display_format;          $vram->display_format;
154    
155          my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 );          my $scale = $self->scale || confess "no scale?";
156          $vram->blit( $rect, $app, $rect_screen );  
157            my $rect        = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale );
158            my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale );
159    
160            if ( $scale > 1 ) {
161                    use SDL::Tool::Graphic;
162                    # last parametar is anti-alias
163                    my $zoomed = SDL::Tool::Graphic->zoom( $vram, $self->scale, $self->scale, 1 );
164                    $zoomed->blit( $rect, $app, $rect_screen );
165            } else {
166                    $vram->blit( $rect, $app, $rect_screen );
167            }
168    
169          $app->sync;          $app->sync;
170  }  }
171    
172    
173  =head2 render_mem  =head2 render_mem
174    
175    $self->render_mem( @ram );    $self->render_mem( @mem );
176    
177  =cut  =cut
178    
# Line 225  sub render_mem { Line 196  sub render_mem {
196    
197          $vram->display_format;          $vram->display_format;
198    
199          my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 );          my $rect     = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 );
200            my $rect_mem = SDL::Rect->new( -x => 256 * $self->scale, -y => 0, -width => 256, -height => 256 );
201    
202          $vram->blit( $rect, $app, $rect_mem );          $vram->blit( $rect, $app, $rect_mem );
203    
204          $app->sync;          $app->sync;
# Line 264  sub key_pressed { Line 237  sub key_pressed {
237    
238          my $event = $self->event || confess "no event?";          my $event = $self->event || confess "no event?";
239    
240          $event->poll || return $pending_key;          if ( ! $event->poll ) {
241                    if ( my $h = $self->session_event('key_pressed') ) {
242                            my ( $key, $state ) = %$h;
243                            if ( $state ) {
244                                    $pending_key = $key;
245                                    $key_down->{$key}++;
246                            } else {
247                                    undef $pending_key;
248                                    $key_down->{$key} = 0;
249                            }
250                    }
251                    return $pending_key;
252            }
253    
254          my $type = $event->type();          my $type = $event->type();
255    
# Line 282  sub key_pressed { Line 267  sub key_pressed {
267                  } else {                  } else {
268                          warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n";                          warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n";
269                          $pending_key = $k;                          $pending_key = $k;
270                            $self->record_session('key_pressed', { $k => 1 });
271                  }                  }
272          } elsif ( $type == SDL_KEYUP ) {          } elsif ( $type == SDL_KEYUP ) {
273                  my $up = $event->key_name();                  my $up = $event->key_name();
                 $key_down->{$up} = 0;  
274                  warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n";                  warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n";
275                    $self->record_session('key_pressed', { $up => 0 });
276                    $key_down->{$up} = 0;
277                  undef $pending_key;                  undef $pending_key;
278          }          }
279    
280          warn "key_pressed = $pending_key\n" if $pending_key;          warn "key_pressed = $pending_key\n" if ( $pending_key );
281    
282          return $pending_key;          return $pending_key;
283  }  }
284    
285  =head2 loop  =head2 loop
286    
287  Implement SDL event loop  Implement CPU run for C<$run_run> cycles inside SDL event loop
288    
289      $self->loop( sub {
290            my $run_for = shift;
291            CPU::exec( $run_for );
292            $self->render_vram;
293      } );
294    
295  =cut  =cut
296    
297  sub loop {  sub loop {
298          my $self = shift;          my $self = shift;
299          my $event = SDL::Event->new();          my $exec = shift;
300    
301            confess "need coderef as argument" unless ref($exec) eq 'CODE';
302            my $event = SDL::Event->new();
303    
         MAIN_LOOP:  
304          while ( 1 ) {          while ( 1 ) {
305                  $self->key_pressed( 1 );                  $self->key_pressed( 1 );
306                  M6502::exec($run_for);                  $exec->($run_for);
                 $self->render_vram( @mem[ 0x6000 .. 0x7fff ] );  
307          }          }
308  }  }
309    
# Line 330  This program is free software; you can r Line 323  This program is free software; you can r
323  under the same terms as Perl itself.  under the same terms as Perl itself.
324    
325  =cut  =cut
326    
327  1;  1;
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