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view docs/html/sdlgetgammaramp.html @ 2429:2c55b72ba46e gsoc2008_iphone

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testdyngles is exactly what it sounds like -- a version of testdyngl that uses OpenGL ES calls instead of OpenGL. Was necessary to create because glOrtho is called glOrthof in OpenGL ES, and OpenGL ES doesn't have glBegin() type semantics for specifying geometry.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Fri, 15 Aug 2008 00:52:52 +0000
parents 355632dca928
children
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<HTML
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><TITLE
>SDL_GetGammaRamp</TITLE
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><H1
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>SDL_GetGammaRamp</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN1598"
></A
><H2
>Name</H2
>SDL_GetGammaRamp&nbsp;--&nbsp;Gets the color gamma lookup tables for the display</DIV
><DIV
CLASS="REFSYNOPSISDIV"
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><H2
>Synopsis</H2
><DIV
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NAME="AEN1602"
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><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_GetGammaRamp</B
></CODE
>(Uint16 *redtable, Uint16 *greentable, Uint16 *bluetable);</CODE
></P
><P
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></DIV
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><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>Description</H2
><P
>Gets the gamma translation lookup tables currently used by the display.
Each table is an array of 256 Uint16 values.</P
><P
>Not all display hardware is able to change gamma.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN1612"
></A
><H2
>Return Value</H2
><P
>Returns -1 on error.</P
></DIV
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CLASS="REFSECT1"
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></A
><H2
>See Also</H2
><P
><A
HREF="sdlsetgamma.html"
>SDL_SetGamma</A
>
<A
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>SDL_SetGammaRamp</A
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