Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_SetGammaRamp.3 @ 741:97b9c301df94
Date: Mon, 17 Nov 2003 23:12:59 +0100
From: Max Horn
Subject: SDL building "the unix way" on OS X
I just noticed that building current SDL CVS "the unix way" (using
configure/make) is (and has been for some time, it seems) broken.
That's because Sam updated to a newer libtool version, which removed my
"-framework" patches.
Attached is a patch which once again makes ltmain.sh aware of
"-framework". Note that this is simply a backport of the corresponding
changes in libtool CVS (i.e. the next libtool release will contain
those same changes).
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 18 Nov 2003 14:25:12 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
rev | line source |
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181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_SetGammaRamp" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_SetGammaRamp\- Sets the color gamma lookup tables for the display | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBint \fBSDL_SetGammaRamp\fP\fR(\fBUint16 *redtable, Uint16 *greentable, Uint16 *bluetable\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
11 Sets the gamma lookup tables for the display for each color component\&. Each table is an array of 256 Uint16 values, representing a mapping between the input and output for that channel\&. The input is the index into the array, and the output is the 16-bit gamma value at that index, scaled to the output color precision\&. You may pass NULL to any of the channels to leave them unchanged\&. | |
12 .PP | |
13 This function adjusts the gamma based on lookup tables, you can also have the gamma calculated based on a "gamma function" parameter with \fISDL_SetGamma\fR\&. | |
14 .PP | |
15 Not all display hardware is able to change gamma\&. | |
16 .SH "RETURN VALUE" | |
17 .PP | |
18 Returns -1 on error (or if gamma adjustment is not supported)\&. | |
19 .SH "SEE ALSO" | |
20 .PP | |
21 \fISDL_SetGamma\fR \fISDL_GetGammaRamp\fR | |
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
22 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |