--- M6502/Screen.pm 2007/08/02 17:15:07 101 +++ Screen.pm 2007/08/05 19:44:20 161 @@ -13,6 +13,9 @@ use Carp qw/confess/; use Data::Dump qw/dump/; +use Exporter 'import'; +our @EXPORT = qw'$white $black'; + use base qw(Class::Accessor Prefs); __PACKAGE__->mk_accessors(qw(app event)); @@ -20,6 +23,33 @@ Screen - simulated 256*256 pixels monochrome screen using SDL +=head1 Architecture dependent + +You may override following methods if you want to implement keyboard on each +keypress event. Alternative is to use hook and trap memory access. + +=head2 key_down + + $self->key_down( 'a' ); + +=cut + +sub key_down {} + +=head2 key_up + + $self->key_up( 'a' ); + +=cut + +sub key_up {} + + +=head1 Architecture independent + +You don't need to override any of following function in your architecture, +but you might want to call them. + =head2 open_screen Open simulated screen @@ -42,9 +72,11 @@ -width => 256 * $self->scale + ( $self->show_mem ? 256 : 0 ), -height => 256 * $self->scale, -depth => 16, + -flags=>SDL_DOUBLEBUF | SDL_HWSURFACE | SDL_HWACCEL, ); #$app->grab_input( SDL_GRAB_QUERY ); $app->grab_input( SDL_GRAB_OFF ); + $app->title( ref($self) ); $self->app( $app ); @@ -54,41 +86,13 @@ warn "# created SDL::App\n"; } -my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); -my $black = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 ); +our $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); +our $black = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 ); my $red = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 ); my $green = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 ); my $blue = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff ); -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( $rect ); -} - =head2 mem_xy Helper to return x and y coordinates in memory map @@ -106,38 +110,6 @@ return ($x,$y); } -=head2 vram - -Push byte to video memory and draw it - - $screen->vram( $offset, $byte ); - -=cut - -my $_vram_counter; - -sub vram { - my ( $self, $offset, $byte ) = @_; - my $x = ( $offset % 32 ) << 3; - my $y = $offset >> 5; - my $mask = 1; - my $scale = $self->scale; - - printf "## vram %04x %02x*%02x %02x\n", $offset, $x, $y, $byte if $self->trace; - - foreach ( 0 .. 7 ) { - my $on = $byte & $mask; - if ( $scale == 1 ) { - $app->pixel( $x + $_, $y, $on ? $white : $black ); - } else { - $self->p($x + $_, $y, $on ); - } - $mask = $mask << 1; - } - - $app->sync if ( $_vram_counter++ % 10 == 0 ); -} - =head2 mmap_pixel Draw pixel in memory map @@ -176,40 +148,58 @@ $app->sync; } -=head2 render +=head2 render_vram Render one frame of video ram - $self->render( @video_memory ); + $self->render_vram; =cut -sub render { +sub render_vram { my $self = shift; - die "this function isn't supported if scale isn't 1" unless $self->scale == 1; + confess "please implement $self::render_vram"; +} + - my $pixels = pack("C*", @_); +=head2 render_frame + +Render one frame of video ram + + $self->render_frame( $vram_sdl_surface ); + +=cut + +sub render_frame { + my $self = shift; + + my $vram = shift; + confess "need SDL::Surface as argument" unless ref($vram) eq 'SDL::Surface'; - 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 ); $vram->display_format; - my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256, -height => 256 ); - $vram->blit( $rect, $app, $rect_screen ); + my $scale = $self->scale || confess "no scale?"; + + my $rect = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale ); + my $rect_screen = SDL::Rect->new( -x => 0, -y => 0, -width => 256 * $scale, -height => 256 * $scale ); + + if ( $scale > 1 ) { + use SDL::Tool::Graphic; + # last parametar is anti-alias + my $zoomed = SDL::Tool::Graphic->zoom( $vram, $self->scale, $self->scale, 1 ); + $zoomed->blit( $rect, $app, $rect_screen ); + } else { + $vram->blit( $rect, $app, $rect_screen ); + } $app->sync; } + =head2 render_mem - $self->render_mem( @ram ); + $self->render_mem( @mem ); =cut @@ -233,7 +223,9 @@ $vram->display_format; - 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 ); + my $rect_mem = SDL::Rect->new( -x => 256 * $self->scale, -y => 0, -width => 256, -height => 256 ); + $vram->blit( $rect, $app, $rect_mem ); $app->sync; @@ -263,7 +255,20 @@ my $event = $self->event || confess "no event?"; - $event->poll || return $pending_key; + if ( ! $event->poll ) { + return $pending_key unless $self->can('session_event'); + if ( my $h = $self->session_event('key_pressed') ) { + my ( $key, $state ) = %$h; + if ( $state ) { + $pending_key = $key; + $self->key_down( $key ); + } else { + undef $pending_key; + $self->key_up( $key ); + } + } + return $pending_key; + } my $type = $event->type(); @@ -280,33 +285,44 @@ } else { warn "SDL_KEYDOWN ($type) = '$k'", $just_checking ? ' fake' : '', "\n"; $pending_key = $k; + $self->key_down( $k ); + $self->record_session('key_pressed', { $k => 1 }); } } elsif ( $type == SDL_KEYUP ) { my $up = $event->key_name(); warn "SDL_KEYUP ($type) = '$up'", $just_checking ? ' fake' : '', "\n"; + $self->key_up( $up ); + $self->record_session('key_pressed', { $up => 0 }); undef $pending_key; } - warn "key_pressed = $pending_key\n" if $pending_key; + warn "key_pressed = $pending_key\n" if ( $pending_key ); return $pending_key; } =head2 loop -Implement SDL event loop +Implement CPU run for C<$run_run> cycles inside SDL event loop + + $self->loop( sub { + my $run_for = shift; + CPU::exec( $run_for ); + $self->render_vram; + } ); =cut sub loop { my $self = shift; - my $event = SDL::Event->new(); + my $exec = shift; + confess "need coderef as argument" unless ref($exec) eq 'CODE'; + my $event = SDL::Event->new(); - MAIN_LOOP: while ( 1 ) { $self->key_pressed( 1 ); - M6502::exec($run_for); + $exec->($run_for); } } @@ -326,4 +342,5 @@ under the same terms as Perl itself. =cut + 1;