Mercurial > sdl-ios-xcode
view docs/man3/SDL_UpdateRect.3 @ 2661:d38309be5178 gsoc2008_audio_resampling
The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out.
| author | Aaron Wishnick <schnarf@gmail.com> |
|---|---|
| date | Wed, 02 Jul 2008 08:04:50 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
line wrap: on
line source
.TH "SDL_UpdateRect" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_UpdateRect \- Makes sure the given area is updated on the given screen\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBvoid \fBSDL_UpdateRect\fP\fR(\fBSDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h\fR); .SH "DESCRIPTION" .PP Makes sure the given area is updated on the given screen\&. The rectangle must be confined within the screen boundaries (no clipping is done)\&. .PP If \&'\fBx\fR\&', \&'\fBy\fR\&', \&'\fBw\fR\&' and \&'\fBh\fR\&' are all 0, \fBSDL_UpdateRect\fP will update the entire screen\&. .PP This function should not be called while \&'\fBscreen\fR\&' is \fIlocked\fR\&. .SH "SEE ALSO" .PP \fI\fBSDL_UpdateRects\fP\fR, \fI\fBSDL_Rect\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_LockSurface\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01