Mercurial > sdl-ios-xcode
view docs/man3/SDL_SetGammaRamp.3 @ 19:8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
From: "Mike Gorchak" <mike@malva.com.ua>
Subject: Patches for QNX RtP
Here my patch for QNX RtP/Photon for SDL-1.2.
Detailed description of my changes:
SDL/configure.in:
If Photon detected declare define ENABLE_PHOTON.
SDL/src/video/SDL_sysvideo.h:
Added extern to ph_bootstrap.
SDL/src/video/SDL_video.c:
Added ph_bootstrap to bootstrap array.
SDL/src/video/photon/SDL_ph_events.c:
Declare DISABLE_X11 if compiled for Photon.
SDL/src/video/photon/SDL_ph_image.c:
Fixed segment violation on exit. Please update BUGS file.
SDL/src/video/photon/SDL_ph_video.c:
1. Enabling window manager.
2. Added to device capabilities Photon Window Manager functions:
SetCaption and IconifyWindow.
3. Renamed X11_bootstrap to ph_bootstrap.
4. Removed SEGFAULT termination of programs if Photon not available.
SDL/src/video/photon/SDL_ph_wm.c:
1. Declare DISABLE_X11 if compiled for Photon.
2. Added ph_SetCaption and ph_IconifyWindow code. (Thanks to
'phearbear' for iconify window source).
3. Some stubers for other wm functions.
Thanks !
----------------------------
Mike Gorchak
CJSC Malva
System Programmer
author | Sam Lantinga <slouken@lokigames.com> |
---|---|
date | Thu, 10 May 2001 18:42:17 +0000 |
parents | 74212992fb08 |
children | 55f1f1b3e27d |
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.TH "SDL_SetGammaRamp" "3" "Mon 12 Mar 2001, 01:04" "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, Mon 12 Mar 2001, 01:04