Mercurial > sdl-ios-xcode
annotate docs/html/sdlsetgammaramp.html @ 320:66f815c147ed
Date: Thu, 28 Mar 2002 09:20:03 +0200
From: "Mike Gorchak" <mike@malva.ua>
Subject: New QNX patch.
Hi !
1. Removed warning (possible bug) with invalid type, passing to the function
in ph_WarpedMotion.
2. Rewritten handler of Ph_WM_RESIZE message, now works, but buggy (old
handler doesn't work at all).
3. Added stub handler for Ph_WM_MAX (maximize) message.
4. Added more #ifdef HAVE_OPENGL to disable OpenGL stuff when it not needed.
5. Added support for SDL_NOFRAME and SDL_RESIZABLE flags (in OpenGL windows
too).
6. Added cosmetic changes, if no SDL_RESIZABLE flag defined, disable resize
handlers in window border and maximize button at caption.
7. Fixed my bug with invalid arguments count passed to PtCreateWidget call.
8. Fixed some palette problems.
9. Updated README.QNX file.
And I changed testgl.c test application:
10. Added in testgl.c application support for SDL_NOFRAME flag and
option -noframe.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 28 Mar 2002 16:20:10 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_SetGammaRamp</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="Video" | |
| 14 HREF="video.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_GetGammaRamp" | |
| 17 HREF="sdlgetgammaramp.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_MapRGB" | |
| 20 HREF="sdlmaprgb.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="REFENTRY" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
| 31 WIDTH="100%" | |
| 32 BORDER="0" | |
| 33 CELLPADDING="0" | |
| 34 CELLSPACING="0" | |
| 35 ><TR | |
| 36 ><TH | |
| 37 COLSPAN="3" | |
| 38 ALIGN="center" | |
| 39 >SDL Library Documentation</TH | |
| 40 ></TR | |
| 41 ><TR | |
| 42 ><TD | |
| 43 WIDTH="10%" | |
| 44 ALIGN="left" | |
| 45 VALIGN="bottom" | |
| 46 ><A | |
| 47 HREF="sdlgetgammaramp.html" | |
| 48 >Prev</A | |
| 49 ></TD | |
| 50 ><TD | |
| 51 WIDTH="80%" | |
| 52 ALIGN="center" | |
| 53 VALIGN="bottom" | |
| 54 ></TD | |
| 55 ><TD | |
| 56 WIDTH="10%" | |
| 57 ALIGN="right" | |
| 58 VALIGN="bottom" | |
| 59 ><A | |
| 60 HREF="sdlmaprgb.html" | |
| 61 >Next</A | |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><H1 | |
| 69 ><A | |
| 70 NAME="SDLSETGAMMARAMP" | |
| 71 >SDL_SetGammaRamp</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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76 NAME="AEN1240" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_SetGammaRamp -- Sets the color gamma lookup tables for the display</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
|
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84 NAME="AEN1243" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
|
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91 NAME="AEN1244" |
| 0 | 92 ></A |
| 93 ><P | |
| 94 ></P | |
| 95 ><PRE | |
| 96 CLASS="FUNCSYNOPSISINFO" | |
| 97 >#include "SDL.h"</PRE | |
| 98 ><P | |
| 99 ><CODE | |
| 100 ><CODE | |
| 101 CLASS="FUNCDEF" | |
| 102 >int <B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_SetGammaRamp</B | |
| 105 ></CODE | |
| 106 >(Uint16 *redtable, Uint16 *greentable, Uint16 *bluetable);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
|
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115 NAME="AEN1250" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
| 120 >Sets the gamma lookup tables for the display for each color component. | |
| 121 Each table is an array of 256 Uint16 values, representing a mapping | |
| 122 between the input and output for that channel. The input is the index | |
| 123 into the array, and the output is the 16-bit gamma value at that index, | |
| 124 scaled to the output color precision. You may pass NULL to any of the | |
| 125 channels to leave them unchanged.</P | |
| 126 ><P | |
| 127 >This function adjusts the gamma based on lookup tables, you can also | |
| 128 have the gamma calculated based on a "gamma function" parameter with | |
| 129 <A | |
| 130 HREF="sdlsetgamma.html" | |
| 131 >SDL_SetGamma</A | |
| 132 >.</P | |
| 133 ><P | |
| 134 >Not all display hardware is able to change gamma.</P | |
| 135 ></DIV | |
| 136 ><DIV | |
| 137 CLASS="REFSECT1" | |
| 138 ><A | |
|
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139 NAME="AEN1256" |
| 0 | 140 ></A |
| 141 ><H2 | |
| 142 >Return Value</H2 | |
| 143 ><P | |
| 144 >Returns -1 on error (or if gamma adjustment is not supported).</P | |
| 145 ></DIV | |
| 146 ><DIV | |
| 147 CLASS="REFSECT1" | |
| 148 ><A | |
|
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149 NAME="AEN1259" |
| 0 | 150 ></A |
| 151 ><H2 | |
| 152 >See Also</H2 | |
| 153 ><P | |
| 154 ><A | |
| 155 HREF="sdlsetgamma.html" | |
| 156 >SDL_SetGamma</A | |
| 157 > | |
| 158 <A | |
| 159 HREF="sdlgetgammaramp.html" | |
| 160 >SDL_GetGammaRamp</A | |
| 161 ></P | |
| 162 ></DIV | |
| 163 ><DIV | |
| 164 CLASS="NAVFOOTER" | |
| 165 ><HR | |
| 166 ALIGN="LEFT" | |
| 167 WIDTH="100%"><TABLE | |
| 168 WIDTH="100%" | |
| 169 BORDER="0" | |
| 170 CELLPADDING="0" | |
| 171 CELLSPACING="0" | |
| 172 ><TR | |
| 173 ><TD | |
| 174 WIDTH="33%" | |
| 175 ALIGN="left" | |
| 176 VALIGN="top" | |
| 177 ><A | |
| 178 HREF="sdlgetgammaramp.html" | |
| 179 >Prev</A | |
| 180 ></TD | |
| 181 ><TD | |
| 182 WIDTH="34%" | |
| 183 ALIGN="center" | |
| 184 VALIGN="top" | |
| 185 ><A | |
| 186 HREF="index.html" | |
| 187 >Home</A | |
| 188 ></TD | |
| 189 ><TD | |
| 190 WIDTH="33%" | |
| 191 ALIGN="right" | |
| 192 VALIGN="top" | |
| 193 ><A | |
| 194 HREF="sdlmaprgb.html" | |
| 195 >Next</A | |
| 196 ></TD | |
| 197 ></TR | |
| 198 ><TR | |
| 199 ><TD | |
| 200 WIDTH="33%" | |
| 201 ALIGN="left" | |
| 202 VALIGN="top" | |
| 203 >SDL_GetGammaRamp</TD | |
| 204 ><TD | |
| 205 WIDTH="34%" | |
| 206 ALIGN="center" | |
| 207 VALIGN="top" | |
| 208 ><A | |
| 209 HREF="video.html" | |
| 210 >Up</A | |
| 211 ></TD | |
| 212 ><TD | |
| 213 WIDTH="33%" | |
| 214 ALIGN="right" | |
| 215 VALIGN="top" | |
| 216 >SDL_MapRGB</TD | |
| 217 ></TR | |
| 218 ></TABLE | |
| 219 ></DIV | |
| 220 ></BODY | |
| 221 ></HTML | |
| 222 > |