Mercurial > sdl-ios-xcode
view docs/man3/SDL_CreateRGBSurfaceFrom.3 @ 2365:478fa831910f gsoc2008_iphone
Added SDL_GL_RETAINED_BACKING to SDL_GLattr enum. Retained backing means the memory for color buffers, depth buffers, etc cannot be overwritten by other applications between frames. The default for this setting is 'on'. I wanted to add this because turning retained backing off on iPhone dramatically increases performance.
| author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
|---|---|
| date | Fri, 18 Jul 2008 18:05:54 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
line wrap: on
line source
.TH "SDL_CreateRGBSurfaceFrom" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_CreateRGBSurfaceFrom \- Create an SDL_Surface from pixel data .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBSDL_Surface *\fBSDL_CreateRGBSurfaceFrom\fP\fR(\fBvoid *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask\fR); .SH "DESCRIPTION" .PP Creates an SDL_Surface from the provided pixel data\&. .PP The data stored in \fBpixels\fR is assumed to be of the \fBdepth\fR specified in the parameter list\&. The pixel data is not copied into the \fBSDL_Surface\fR structure so it should not be freed until the surface has been freed with a called to \fISDL_FreeSurface\fR\&. \fBpitch\fR is the length of each scanline in bytes\&. .PP See \fI\fBSDL_CreateRGBSurface\fP\fR for a more detailed description of the other parameters\&. .SH "RETURN VALUE" .PP Returns the created surface, or \fBNULL\fR upon error\&. .SH "SEE ALSO" .PP \fI\fBSDL_CreateRGBSurface\fP\fR, \fI\fBSDL_FreeSurface\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01