why don’t you create a second SDL_Surface where dest.w = source.h and dest.h = source.w and do something like this:
for (i = 0; i < source.h * 3; i++)
for (a=0; a < source.w * 3; i++)
{
dest[a * dest.w + i] = source [i * souce.w + a];
}
*3 because of the RGB-Format - or whatever you use…> Von: Bill Kendrick
An: “A list for developers using the SDL library. (includes SDL-announce)”
Betreff: Re: [SDL] Rotate
Datum: Tue, 24 May 2005 01:22:13 -0700
On Mon, May 23, 2005 at 03:22:32PM +0000, Leszek Kula wrote:
Hi!
I’ve got a simple program, which display bmp&jpg files and writte some text
usung (SDL,SDL_image,SDL_ttf). Now I need to turn left orientation of my
display. Is there any simple method to do it ?SDL has no way of doing this internally. You could write your own code
to do this, using various methods of transforming an image 90 degrees,
or you could use a library, such as SDL_rotozoom or SDL_gfx or whatever it
is out there that does these kinds of things? :^)(See the www.libsdl.org “Libraries” page to find something.)
Good luck!
–
-bill!
bill at newbreedsoftware.com
http://newbreedsoftware.com/
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