use SDL; use SDL::Video; use SDLx::Surface; # Create the main surface (display) SDL::init(SDL_INIT_VIDEO); my $display = SDL::Video::set_video_mode(640, 480, 16, SDL_SWSURFACE); my $surf_matrix = SDLx::Surface->new( surface => $display); $surf_matrix->[10][10] = 0xFFFF; #for 16bpp write white at x = 10 and y=10 $surf_matrix->surface( $new_surface ); my $orig_surface = $surf_matrix->surface();
If a surface is passed to 'surface =>' that is loaded. Otherwise you can define at least a width and a height.
SDLx::Surface->new( surface => $surface) # The $surface is loaded
SDLx::Surface->new( width=> 400, height=>200)
# A SDL::Surface->new( SDL_ANYFORMAT, 400, 200, 32) is loaded
SDLx::Surface->new( width=> 400, height=>200, flags=> SDL_SWSURFACE, depth=>24 )
# A SDL::Surface->new( SDL_SWSURFACE, 400, 200, 24) is loaded
SDLx::Surface->new( width=> 400, height=>200, flags=> SDL_SWSURFACE, depth=>32, greenmask=>0xFF000000 )
# A SDL::Surface->new( SDL_ANYFORMAT, 400, 200, 32, 0, 0xFF000000,0, 0, 0 ) is loaded
SDLx::Surface->new( w => 1, h => 1, color => 0xFF0000FF )
# A SDL::Surface->new( SDL_ANYFORMAT, 1, 1, 32, 0, 0, 0, 0 ) is loaded
all pixels are colored with color (red)
my $appx = SDLx::Surface::display();
gets the display if it is already made. Passed options are ignored. Otherwise you can quickly make the display with :
SDLx::Surface::display( width => 20, height => 20) #depth => 32 and SDL_ANYFORMAT used
or you can also pass flags and depth.
SDLx::Surface::display( width => 20, height => 20, flags=> SDL_HWSURFACE, depth=>24)
You can also use the keys "w" and "h" in place of "width" and "height", as with "new".
Get or create the main display surface and attach to a "SDLx::Surface".
my $surface = SDLx::Surface->load( 'hero.png' ); my $surface = SDLx::Surface->load( 'hero.dat', 'bmp' );
Loads the given image file into a new SDLx::Surface surface. A new surface is always created, even if you call it from an already crafted object. Croaks on errors such as no support built for that image extension or a file reading error (the error message is SDL::get_error and should give more details).
Note that load() will automatically figure out the extension based on the filename you provide. If you wish to force an extension for whatever reason (like having a filename with a different extension or none at all), you can optionally pass the file type as a second parameter. Case is not relevant.
If you don't have SDL_image in your build, only bitmap images will be supported.
$sdlx_surface->blit( $dest, $src_rect, $dest_rect );
Blits "SDLx::Surface" onto $dest surface. $src_rect or $dest_rect are optional. If $src_rect is omitted, it will be the size of the entire surface. If $dest_rect is omitted, it will be blitted at "(0, 0)". $src_rect or $dest_rect can be array refs or "SDL::Rect". $dest can be "SDLx::Surface" or "SDL::Surface".
Note that the final blit rectangle is stored in $dest_rect after clipping is performed.
$sdlx_surface->blit_by( $src, $src_rect, $dest_rect );
Does the same as "blit" but the "SDLx::Surface" is the one being blitted to. This is useful when the surface you have isn't an "SDLx::Surface", but the surface it is being blitted to is.
Note that the final blit rectangle is stored in $dest_rect after clipping is performed.
$sdlx_surface->update(); # whole surface is updated $sdlx_surface->update([0,0,1,1]); # only that area (0,0,1,1) is updated $sdlx_surface->update( [ SDL::Rect->new(0,0,1,2) ... ]); # defined rects are updated
Applies SDL::Video::update_rect for no rect or 1 array ref. Applies SDL::Video::update_rects for array of SDL::Rects.
$sdlx_surface->draw_rect( [$x,$y,$w,$h], 0xFFFF00FF ); $sdlx_surface->draw_rect( SDL::Rect->new($x,$y,$w,$h), 0xFFFF00FF );
Draws a rect on the surface with the given color. If the rect is omitted, the colored rect will be drawn to the entire surface.
$sdlx_surface->draw_line( [$x1, $y1], [$x2, $y2], $color, $antialias); # $color is a number $sdlx_surface->draw_line( [$x1, $y1], [$x2, $y2], \@color, $antialias); #
Draws a line on the surface. Antialias is turned on if $antialias is true.
$sdlx_surface->draw_circle( [$x1, $y1], $radius, \@color, $antialias );
Draws an unfilled circle at "($x1,$y1)" of size $radius and $color. Antialias is turned on if $antialias is true. Returns $self
$sdlx_surface->draw_circle_filled( [$x1, $y1], $radius, \@color );
Draws an filled circle at "($x1,$y1)" of size $radius and $color. Antialias is turned on automatically. Returns $self
$sdlx_surface->draw_trigon( [ [$x1, $y1], [$x2, $y2], [$x3, y3] ], \@color, $antialias );
Draws an unfilled trigon (triangle) with vertices "($x1,$y1)", "($x2,$y2)", "($x3,$y3)" and $color. Antialias is turned on if $antialias is true. Returns $self
$sdlx_surface->draw_trigon_filled( [ [$x1, $y1], [$x2, $y2], [$x3, y3] ], \@color );
Draws an filled trigon (triangle) with vertices "($x1,$y1)", "($x2,$y2)", "($x3,$y3)" and $color. Antialias is turned on automatically. Returns $self
$sdlx_surface->draw_polygon( [ [$x1, $y1], [$x2, $y2], [$x3, y3], ... ], \@color, $antialias );
Draws an unfilled polygon with vertices "($xN,$yN)" and $color. Antialias is turned on if $antialias is true. Returns $self
$sdlx_surface->draw_polygon_filled( [ [$x1, $y1], [$x2, $y2], [$x3, y3], ... ], \@color );
Draws an filled polygon with vertices "($xN,$yN)" and $color. Antialias is turned on automatically. Returns $self
$sdlx_surface->draw_arc( [ $x, $y ], $radius, $start, $end, $color );
Draws an arc around "($x,$y)" with $radius, $start radius, $end radius and $color.
$sdlx_surface->draw_ellipse( [ $x, $y ], $rx, $ry, $color );
Draws an unfilled ellipse centered at "($x,$y)" with horizontal radius $rx, vertical radius $ry and $color. Antialias is turned on if $antialias is true.
$sdlx_surface->draw_ellipse_filled( [ $x, $y ], $rx, $ry, $color );
Draws an filled ellipse centered at "($x,$y)" with horizontal radius $rx, vertical radius $ry and $color. Antialias is turned on automatically.
$sdlx_surface->draw_bezier( [ [$x1, $y1], [$x2, $y2], [$x3, y3], ... ], $s, $color );
Draws a bezier curve of points "($xN,$yN)" using $s steps for interpolation and $color. Antialias is turned on automatically.
$surf->draw_gfx_text( [0,0], 0xffffffff, "fooo"); $surf->draw_gfx_text( [10,10], [20,20,20,20], "fooo");
You can also set the gfx font but passing a hash reference as shown below.
my $f = '';
open( my $FH, '<', 'test/data/5x7.fnt');
binmode ($FH);
read($FH, $f, 4096);
close ($FH);
my $font = {data=>$f, cw => 5, ch => 7};
$surf->draw_gfx_text( [0,0], 0xffffffff, "fooo", $font );