SDL_MapRGB(3) SDL API Reference SDL_MapRGB(3)NAME
SDL_MapRGB - Map a RGB color value to a pixel format.
Uint32 SDL_MapRGB(SDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b);
Maps the RGB color value to the specified pixel format and returns the pixel value as a 32-bit int.
If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned.
If the specified pixel format has an alpha component it will be returned as all 1 bits (fully opaque).
A pixel value best approximating the given RGB color value for a given pixel format. If the pixel format bpp (color depth) is less than
32-bpp then the unused upper bits of the return value can safely be ignored (e.g., with a 16-bpp format the return value can be assigned to
a Uint16, and similarly a Uint8 for an 8-bpp format).
SDL_GetRGB, SDL_GetRGBA, SDL_MapRGBA, SDL_PixelFormat
SDL Tue 11 Sep 2001, 23:01 SDL_MapRGB(3)
Check Out this Related Man Page
SDL::Color(3) User Contributed Perl Documentation SDL::Color(3)NAME
SDL::Color - a SDL perl extension
$color = new SDL::Color ( -r => 0xde, -g => 0xad, -b =>c0 );
$color = new SDL::Color -surface => $app, -pixel => $app->pixel($x,$y);
$color = new SDL::Color -color => SDL::NewColor(0xff,0xaa,0xdd);
"SDL::Color" is a wrapper for display format independent color representations, with the same interface as SDL::Color.
new ( -color => )
"SDL::Color::new" with a "-color" option will construct a new object referencing the passed SDL_Color*.
new (-r => , -g => , -b => )
"SDL::Color::new" with "-r,-g,-b" options will construct both a SDL_Color structure, and the associated object with the specified vales.
new (-pixel =>, -surface =>)
"SDL::Color::new" with "-pixel,-surface" options will generate a SDL_Color* with the r,g,b values associated with the integer value passed
by "-pixel" for the given "-surface"'s format.
r ( [ red ] ), g( [ green ] ), b( [ blue ] )
"SDL::Color::r, SDL::Color::g, SDL::Color::b" are accessor methods for the red, green, and blue components respectively. The color value
can be set by passing a byte value (0-255) to each function.
pixel ( surface )
"SDL::Color::pixel" takes a "SDL::Surface" object and r,g,b values, and returns the integer representation of the closest color for the
David J. Goehrig
perl v5.12.1 2010-07-05 SDL::Color(3)
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