Mercurial > sdl-ios-xcode
view docs/man3/SDL_Palette.3 @ 3880:74e828c64315 SDL-1.2
Fixed bug #292
I might be on crack here.
It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and
right channels of a stereo stream together, and clamps the new mono channel if
it would overflow.
Shouldn't it be dividing by 2 to average the two sample points instead of
clamping? Otherwise the mono sample point's volume doubles in the conversion.
This would also make the conversion faster, as it replaces two branches per
sample frame with a bitwise shift.
--ryan.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 24 Sep 2006 15:45:37 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
line wrap: on
line source
.TH "SDL_Palette" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_Palette\- Color palette for 8-bit pixel formats .SH "STRUCTURE DEFINITION" .PP .nf \f(CWtypedef struct{ int ncolors; SDL_Color *colors; } SDL_Palette;\fR .fi .PP .SH "STRUCTURE DATA" .TP 20 \fBncolors\fR Number of colors used in this palette .TP 20 \fBcolors\fR Pointer to \fI\fBSDL_Color\fR\fR structures that make up the palette\&. .SH "DESCRIPTION" .PP Each pixel in an 8-bit surface is an index into the \fBcolors\fR field of the \fBSDL_Palette\fR structure store in \fI\fBSDL_PixelFormat\fR\fR\&. A \fBSDL_Palette\fR should never need to be created manually\&. It is automatically created when SDL allocates a \fBSDL_PixelFormat\fR for a surface\&. The colors values of a \fI\fBSDL_Surface\fR\fRs palette can be set with the \fI\fBSDL_SetColors\fP\fR\&. .SH "SEE ALSO" .PP \fI\fBSDL_Color\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_SetColors\fP\fR \fI\fBSDL_SetPalette\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01