Mercurial > sdl-ios-xcode
annotate docs/html/sdlgetrgba.html @ 4215:d83830711a5b SDL-1.2
Fixed bug #615
Scott McCreary 2008-08-21 10:48:14 PDT
This patch adds support for Haiku.
http://ports.haiku-files.org/browser/haikuports/trunk/media-libs/libsdl/SDL-1.2.13-haiku.diff
Haiku is an open-source recreation of BeOS. It has better POSIX compliance
than beOS did, and other improved features, which in some cases causes us to
have to "undo" previous BeOS workarounds.
Here's our port log entry for it, showing the steps to force the changes into
configure and Makefile:
http://ports.haiku-files.org/wiki/media-libs/libsdl/1.2.13/1
Note that this was only tried on 1.2.13 stable so far.
Haiku is using a newer config.guess / config.sub that doesn't yet seem to be in
the released libtool, so we are having to copy it in for now.
http://haiku-files.org/files/optional-packages/
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 21 Sep 2009 09:18:42 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_GetRGBA</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_GetRGB" | |
| 17 HREF="sdlgetrgb.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CreateRGBSurface" | |
| 20 HREF="sdlcreatergbsurface.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="sdlgetrgb.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="sdlcreatergbsurface.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="SDLGETRGBA" | |
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74 ></A |
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75 >SDL_GetRGBA</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN1747" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_GetRGBA -- Get RGBA values from a pixel in the specified pixel format.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN1750" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN1751" |
| 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 >void <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_GetRGBA</B | |
| 108 ></CODE | |
| 109 >(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN1757" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Get RGBA component values from a pixel stored in the specified pixel format.</P | |
| 124 ><P | |
| 125 >This function uses the entire 8-bit [0..255] range when converting color | |
| 126 components from pixel formats with less than 8-bits per RGB component | |
| 127 (e.g., a completely white pixel in 16-bit RGB565 format would return | |
| 128 [0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).</P | |
| 129 ><P | |
| 130 >If the surface has no alpha component, the alpha will be returned as 0xff | |
| 131 (100% opaque).</P | |
| 132 ></DIV | |
| 133 ><DIV | |
| 134 CLASS="REFSECT1" | |
| 135 ><A | |
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136 NAME="AEN1762" |
| 0 | 137 ></A |
| 138 ><H2 | |
| 139 >See Also</H2 | |
| 140 ><P | |
| 141 ><A | |
| 142 HREF="sdlgetrgb.html" | |
| 143 >SDL_GetRGB</A | |
| 144 >, | |
| 145 <A | |
| 146 HREF="sdlmaprgb.html" | |
| 147 >SDL_MapRGB</A | |
| 148 >, | |
| 149 <A | |
| 150 HREF="sdlmaprgba.html" | |
| 151 >SDL_MapRGBA</A | |
| 152 >, | |
| 153 <A | |
| 154 HREF="sdlpixelformat.html" | |
| 155 >SDL_PixelFormat</A | |
| 156 ></P | |
| 157 ></DIV | |
| 158 ><DIV | |
| 159 CLASS="NAVFOOTER" | |
| 160 ><HR | |
| 161 ALIGN="LEFT" | |
| 162 WIDTH="100%"><TABLE | |
|
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163 SUMMARY="Footer navigation table" |
| 0 | 164 WIDTH="100%" |
| 165 BORDER="0" | |
| 166 CELLPADDING="0" | |
| 167 CELLSPACING="0" | |
| 168 ><TR | |
| 169 ><TD | |
| 170 WIDTH="33%" | |
| 171 ALIGN="left" | |
| 172 VALIGN="top" | |
| 173 ><A | |
| 174 HREF="sdlgetrgb.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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175 ACCESSKEY="P" |
| 0 | 176 >Prev</A |
| 177 ></TD | |
| 178 ><TD | |
| 179 WIDTH="34%" | |
| 180 ALIGN="center" | |
| 181 VALIGN="top" | |
| 182 ><A | |
| 183 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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184 ACCESSKEY="H" |
| 0 | 185 >Home</A |
| 186 ></TD | |
| 187 ><TD | |
| 188 WIDTH="33%" | |
| 189 ALIGN="right" | |
| 190 VALIGN="top" | |
| 191 ><A | |
| 192 HREF="sdlcreatergbsurface.html" | |
|
803
355632dca928
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Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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193 ACCESSKEY="N" |
| 0 | 194 >Next</A |
| 195 ></TD | |
| 196 ></TR | |
| 197 ><TR | |
| 198 ><TD | |
| 199 WIDTH="33%" | |
| 200 ALIGN="left" | |
| 201 VALIGN="top" | |
| 202 >SDL_GetRGB</TD | |
| 203 ><TD | |
| 204 WIDTH="34%" | |
| 205 ALIGN="center" | |
| 206 VALIGN="top" | |
| 207 ><A | |
| 208 HREF="video.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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209 ACCESSKEY="U" |
| 0 | 210 >Up</A |
| 211 ></TD | |
| 212 ><TD | |
| 213 WIDTH="33%" | |
| 214 ALIGN="right" | |
| 215 VALIGN="top" | |
| 216 >SDL_CreateRGBSurface</TD | |
| 217 ></TR | |
| 218 ></TABLE | |
| 219 ></DIV | |
| 220 ></BODY | |
| 221 ></HTML | |
| 222 > |