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Date: Sat, 03 Jul 2004 02:23:48 +0200 From: Marcin Konicki Subject: [PATCH] Add missing functions and bring back OpenGL This patch adds missing functions: IconifyWindow GetWMInfo GL_LoadLibrary GL_GetProcAddress GL_GetAttribute GL_MakeCurrent Adding GL_* functions brings back working OpenGL in SDL for BeOS :). With addd GL_* functions there are few changes in Window class to handle changes better. Patch also fixes bug which freezed window when using MesaGL instead of BeOS r5 GL - it just needed Window->Quit() added into BE_VideoQuit(). THX to Michael Weirauch (a.k.a emwe) who worked on that bug before and found that it freezes because of lock somewhere. THX to Matti "Mictlantecuhtli" Lev��nen for testing, Rod��ric Vicaire (a.k.a. Ingenu) for OpenGL wisdom, and Stefano Ceccherini (a.k.a Jack Burton) for asking me to fix SDL on BeOS :).
author Sam Lantinga <slouken@libsdl.org>
date Sun, 18 Jul 2004 19:14:33 +0000
parents e5bc29de3f0a
children 546f7c1eb755
line wrap: on
line source

.TH "SDL_SetGammaRamp" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_SetGammaRamp\- Sets the color gamma lookup tables for the display
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBint \fBSDL_SetGammaRamp\fP\fR(\fBUint16 *redtable, Uint16 *greentable, Uint16 *bluetable\fR);
.SH "DESCRIPTION"
.PP
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\&.
.PP
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\&.
.PP
Not all display hardware is able to change gamma\&.
.SH "RETURN VALUE"
.PP
Returns -1 on error (or if gamma adjustment is not supported)\&.
.SH "SEE ALSO"
.PP
\fISDL_SetGamma\fR \fISDL_GetGammaRamp\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01