Mercurial > sdl-ios-xcode
annotate docs/html/sdlsetgammaramp.html @ 2208:b03710fb0333
Fixed bug #467
Remove trailing commas from enums
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 22 Jul 2007 13:22:47 +0000 |
parents | 355632dca928 |
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rev | line source |
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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 1.76b+ |
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 | |
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31 SUMMARY="Header navigation table" |
0 | 32 WIDTH="100%" |
33 BORDER="0" | |
34 CELLPADDING="0" | |
35 CELLSPACING="0" | |
36 ><TR | |
37 ><TH | |
38 COLSPAN="3" | |
39 ALIGN="center" | |
40 >SDL Library Documentation</TH | |
41 ></TR | |
42 ><TR | |
43 ><TD | |
44 WIDTH="10%" | |
45 ALIGN="left" | |
46 VALIGN="bottom" | |
47 ><A | |
48 HREF="sdlgetgammaramp.html" | |
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49 ACCESSKEY="P" |
0 | 50 >Prev</A |
51 ></TD | |
52 ><TD | |
53 WIDTH="80%" | |
54 ALIGN="center" | |
55 VALIGN="bottom" | |
56 ></TD | |
57 ><TD | |
58 WIDTH="10%" | |
59 ALIGN="right" | |
60 VALIGN="bottom" | |
61 ><A | |
62 HREF="sdlmaprgb.html" | |
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63 ACCESSKEY="N" |
0 | 64 >Next</A |
65 ></TD | |
66 ></TR | |
67 ></TABLE | |
68 ><HR | |
69 ALIGN="LEFT" | |
70 WIDTH="100%"></DIV | |
71 ><H1 | |
72 ><A | |
73 NAME="SDLSETGAMMARAMP" | |
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74 ></A |
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75 >SDL_SetGammaRamp</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN1624" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_SetGammaRamp -- Sets the color gamma lookup tables for the display</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN1627" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN1628" |
0 | 95 ></A |
96 ><P | |
97 ></P | |
98 ><PRE | |
99 CLASS="FUNCSYNOPSISINFO" | |
100 >#include "SDL.h"</PRE | |
101 ><P | |
102 ><CODE | |
103 ><CODE | |
104 CLASS="FUNCDEF" | |
105 >int <B | |
106 CLASS="FSFUNC" | |
107 >SDL_SetGammaRamp</B | |
108 ></CODE | |
109 >(Uint16 *redtable, Uint16 *greentable, Uint16 *bluetable);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN1634" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Sets the gamma lookup tables for the display for each color component. | |
124 Each table is an array of 256 Uint16 values, representing a mapping | |
125 between the input and output for that channel. The input is the index | |
126 into the array, and the output is the 16-bit gamma value at that index, | |
127 scaled to the output color precision. You may pass NULL to any of the | |
128 channels to leave them unchanged.</P | |
129 ><P | |
130 >This function adjusts the gamma based on lookup tables, you can also | |
131 have the gamma calculated based on a "gamma function" parameter with | |
132 <A | |
133 HREF="sdlsetgamma.html" | |
134 >SDL_SetGamma</A | |
135 >.</P | |
136 ><P | |
137 >Not all display hardware is able to change gamma.</P | |
138 ></DIV | |
139 ><DIV | |
140 CLASS="REFSECT1" | |
141 ><A | |
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142 NAME="AEN1640" |
0 | 143 ></A |
144 ><H2 | |
145 >Return Value</H2 | |
146 ><P | |
147 >Returns -1 on error (or if gamma adjustment is not supported).</P | |
148 ></DIV | |
149 ><DIV | |
150 CLASS="REFSECT1" | |
151 ><A | |
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152 NAME="AEN1643" |
0 | 153 ></A |
154 ><H2 | |
155 >See Also</H2 | |
156 ><P | |
157 ><A | |
158 HREF="sdlsetgamma.html" | |
159 >SDL_SetGamma</A | |
160 > | |
161 <A | |
162 HREF="sdlgetgammaramp.html" | |
163 >SDL_GetGammaRamp</A | |
164 ></P | |
165 ></DIV | |
166 ><DIV | |
167 CLASS="NAVFOOTER" | |
168 ><HR | |
169 ALIGN="LEFT" | |
170 WIDTH="100%"><TABLE | |
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171 SUMMARY="Footer navigation table" |
0 | 172 WIDTH="100%" |
173 BORDER="0" | |
174 CELLPADDING="0" | |
175 CELLSPACING="0" | |
176 ><TR | |
177 ><TD | |
178 WIDTH="33%" | |
179 ALIGN="left" | |
180 VALIGN="top" | |
181 ><A | |
182 HREF="sdlgetgammaramp.html" | |
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183 ACCESSKEY="P" |
0 | 184 >Prev</A |
185 ></TD | |
186 ><TD | |
187 WIDTH="34%" | |
188 ALIGN="center" | |
189 VALIGN="top" | |
190 ><A | |
191 HREF="index.html" | |
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192 ACCESSKEY="H" |
0 | 193 >Home</A |
194 ></TD | |
195 ><TD | |
196 WIDTH="33%" | |
197 ALIGN="right" | |
198 VALIGN="top" | |
199 ><A | |
200 HREF="sdlmaprgb.html" | |
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201 ACCESSKEY="N" |
0 | 202 >Next</A |
203 ></TD | |
204 ></TR | |
205 ><TR | |
206 ><TD | |
207 WIDTH="33%" | |
208 ALIGN="left" | |
209 VALIGN="top" | |
210 >SDL_GetGammaRamp</TD | |
211 ><TD | |
212 WIDTH="34%" | |
213 ALIGN="center" | |
214 VALIGN="top" | |
215 ><A | |
216 HREF="video.html" | |
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217 ACCESSKEY="U" |
0 | 218 >Up</A |
219 ></TD | |
220 ><TD | |
221 WIDTH="33%" | |
222 ALIGN="right" | |
223 VALIGN="top" | |
224 >SDL_MapRGB</TD | |
225 ></TR | |
226 ></TABLE | |
227 ></DIV | |
228 ></BODY | |
229 ></HTML | |
230 > |