sdl_getgammaramp(3) [opensolaris man page]

SDL_GetGammaRamp(3)						 SDL API Reference					       SDL_GetGammaRamp(3)

NAME

       SDL_GetGammaRamp - Gets the color gamma lookup tables for the display

SYNOPSIS

       #include "SDL.h"

       int SDL_GetGammaRamp(Uint16 *redtable, Uint16 *greentable, Uint16 *bluetable);

DESCRIPTION

       Gets the gamma translation lookup tables currently used by the display. Each table is an array of 256 Uint16 values.

       Not all display hardware is able to change gamma.

RETURN VALUE

       Returns -1 on error.

SEE ALSO

       SDL_SetGamma SDL_SetGammaRamp

SDL
							      Tue 11 Sep 2001, 23:01					       SDL_GetGammaRamp(3)

SDL_AudioCVT(3) 						 SDL API Reference						   SDL_AudioCVT(3)

NAME

       SDL_AudioCVT - Audio Conversion Structure

STRUCTURE DEFINITION

       typedef struct{
	 int needed;
	 Uint16 src_format;
	 Uint16 dest_format;
	 double rate_incr;
	 Uint8 *buf;
	 int len;
	 int len_cvt;
	 int len_mult;
	 double len_ratio;
	 void (*filters[10])(struct SDL_AudioCVT *cvt, Uint16 format);
	 int filter_index;
       } SDL_AudioCVT;

STRUCTURE DATA

       needed		   Set to one if the conversion is possible

       src_format	   Audio format of the source

       dest_format	   Audio format of the destination

       rate_incr	   Rate conversion increment

       buf		   Audio buffer

       len		   Length of the original audio buffer in bytes

       len_cvt		   Length of converted audio buffer in bytes (calculated)

       len_mult 	   buf must be len*len_mult bytes in size(calculated)

       len_ratio	   Final audio size is len*len_ratio

       filters[10](..)	   Pointers to functions needed for this conversion

       filter_index	   Current conversion function

DESCRIPTION

       The  SDL_AudioCVT  is  used to convert audio data between different formats. A SDL_AudioCVT structure is created with the SDL_BuildAudioCVT
       function, while the actual conversion is done by the SDL_ConvertAudio function.

       Many of the fields in the SDL_AudioCVT structure should be considered private and their function will not be discussed here.

       Uint8 *buf

       int len

       int len_mult

       double len_ratio

SEE ALSO

       SDL_BuildAudioCVT, SDL_ConvertAudio, SDL_AudioSpec

SDL
							      Tue 11 Sep 2001, 22:58						   SDL_AudioCVT(3)