debian man page for sdl::surface

Query: sdl::surface

OS: debian

Section: 3pm

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

pods::SDL::Surface(3pm) 				User Contributed Perl Documentation				   pods::SDL::Surface(3pm)

NAME
SDL::Surface - Graphic surface structure
CATEGORY
Core, Video, Structure
SYNOPSIS
use SDL; use SDL::Video; use SDL::Surface; # Create the main surface (display) SDL::init(SDL_INIT_VIDEO); my $display = SDL::Video::set_video_mode(640, 480, 16, SDL_SWSURFACE); # Create other surfaces attached to the $display. my $surface = SDL::Surface->new(SDL_ASYNCBLIT | SDL_HWSURFACE, 640, 480, 16, 0, 0, 0, 0); my $surface2 = SDL::Surface->new_from($surface, 100, 100, 8, 0, 0, 0, 0);
DESCRIPTION
An "SDL_Surface" defines a surfaceangular area of pixels.
CONSTANTS
The constants for SDL::Surface belong to SDL::Video, under the export tag of ':surface'. SDL_ASYNCBLIT Use asynchronous blit if possible SDL_SWSURFACE Store in system memory SDL_HWSURFACE Store in video memory
METHODS
new my $surface = SDL::Surface->new( $flags, $width, $height, $depth, $Rmask, $Gmask, $Bmask, $Amask ); The constructor creates a new surface with the specified parameter values. The four mask values are the bits that the channel will ignore. For example, an Rmask of 0xFF will ignore that channel completely, making everything on the surface more green/blue. new_from my $surface = SDL::Surface->new_from( $surface, $width, $height, $depth, $Rmask, $Gmask, $Bmask, $Amask ); The constructor creates a new surface with the specified parameter values. The flags are taken from the specified $surface. w my $w = $surface->w; Returns the width of the surface. SDL::Surface width is defined at construction so this is read-only. h my $h = $surface->h; Returns the height of the surface. SDL::Surface height is defined at construction so this is read-only. format my $format = $surface->format; The format of the pixels stored in the surface. See SDL::PixelFormat pitch my $pitch = $surface->pitch; The scanline length in bytes. Direct Write to Surface Pixel Disclaimer: The following methods can be very slow, making them suitable for creating surfaces, but not for animations get_pixel my $pixel = $surface->get_pixel( $offset ) Returns the numeric pixel value for the given $offset. The pixel value depends on current pixel format. Note: For surfaces with a palette (1 byte per pixel) the palette index is returned instead of color values. set_pixels $surface->set_pixels( $offset, $value ); Sets the pixel $value to the given $offset. The pixel value must fit the pixel format of the surface. Note: For surfaces with a palette (1 byte per pixel) the palette index must be passed instead of color values. Example: sub putpixel { my ($x, $y, $color) = @_; $display->set_pixels( $x + $y * $display->w, $color); } See also examples/pixel_operations/sols/ch02.pl! get_pixels_ptr my $ptr = $surface->get_pixels_ptr; Returns a reference to the surface's pixels.
SEE ALSO
SDL, SDL::PixelFormat, SDL::Video, SDL::Rect
AUTHORS
See "AUTHORS" in SDL. perl v5.14.2 2012-05-28 pods::SDL::Surface(3pm)
Related Man Pages
sdl_creatergbsurface(3) - redhat
sdl_creatergbsurface(3) - debian
sdl_surface(3) - centos
sdl_surface(3) - suse
sdl::surface(3pm) - debian
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