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annotate docs/man3/SDL_Palette.3 @ 2042:3908e1f808e1

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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 15:56:36 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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e5bc29de3f0a Updated from the SDL Documentation Project
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1 .TH "SDL_Palette" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_Palette\- Color palette for 8-bit pixel formats
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4 .SH "STRUCTURE DEFINITION"
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5 .PP
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6 .nf
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7 \f(CWtypedef struct{
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8 int ncolors;
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9 SDL_Color *colors;
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10 } SDL_Palette;\fR
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11 .fi
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12 .PP
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13 .SH "STRUCTURE DATA"
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14 .TP 20
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15 \fBncolors\fR
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16 Number of colors used in this palette
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17 .TP 20
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18 \fBcolors\fR
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19 Pointer to \fI\fBSDL_Color\fR\fR structures that make up the palette\&.
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20 .SH "DESCRIPTION"
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21 .PP
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22 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\&.
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23 .SH "SEE ALSO"
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24 .PP
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25 \fI\fBSDL_Color\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_SetColors\fP\fR \fI\fBSDL_SetPalette\fP\fR
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26 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01