Mercurial > sdl-ios-xcode
annotate docs/html/sdlglsetattribute.html @ 3261:72b542f34739
The new, cleaner, version of the atomic operations. The dummy code is what you should start working with to port atomic ops.
The linux code appears to be complete and *should* be the base of all Unix and GCC based versions. The macosx and win32 versions
are currently just copies of the dummy code. I will begin working on the windows version as soon as this check in is done. I
need someone to work on the Mac OS X version.
I'm afraid that this check in will break QNX (Sorry!)
| author | Bob Pendleton <bob@pendleton.com> |
|---|---|
| date | Thu, 17 Sep 2009 20:35:12 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
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| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_GL_SetAttribute</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_GL_GetAttribute" | |
| 17 HREF="sdlglgetattribute.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_GL_SwapBuffers" | |
| 20 HREF="sdlglswapbuffers.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="sdlglgetattribute.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="sdlglswapbuffers.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="SDLGLSETATTRIBUTE" | |
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74 ></A |
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75 >SDL_GL_SetAttribute</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN2742" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_GL_SetAttribute -- Set a special SDL/OpenGL attribute</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN2745" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN2746" |
| 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_GL_SetAttribute</B | |
| 108 ></CODE | |
| 109 >(SDL_GLattr attr, int value);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN2752" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Sets the OpenGL <A | |
| 124 HREF="sdlglattr.html" | |
| 125 >attribute</A | |
| 126 > <TT | |
| 127 CLASS="PARAMETER" | |
| 128 ><I | |
| 129 >attr</I | |
| 130 ></TT | |
| 131 > to <TT | |
| 132 CLASS="PARAMETER" | |
| 133 ><I | |
| 134 >value</I | |
| 135 ></TT | |
| 136 >. The attributes you set don't take effect until after a call to <A | |
| 137 HREF="sdlsetvideomode.html" | |
| 138 ><TT | |
| 139 CLASS="FUNCTION" | |
| 140 >SDL_SetVideoMode</TT | |
| 141 ></A | |
| 142 >. You should use <A | |
| 143 HREF="sdlglgetattribute.html" | |
| 144 ><TT | |
| 145 CLASS="FUNCTION" | |
| 146 >SDL_GL_GetAttribute</TT | |
| 147 ></A | |
| 148 > to check the values after a <TT | |
| 149 CLASS="FUNCTION" | |
| 150 >SDL_SetVideoMode</TT | |
| 151 > call.</P | |
| 152 ></DIV | |
| 153 ><DIV | |
| 154 CLASS="REFSECT1" | |
| 155 ><A | |
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156 NAME="AEN2763" |
| 0 | 157 ></A |
| 158 ><H2 | |
| 159 >Return Value</H2 | |
| 160 ><P | |
| 161 >Returns <SPAN | |
| 162 CLASS="RETURNVALUE" | |
| 163 >0</SPAN | |
| 164 > on success, or <SPAN | |
| 165 CLASS="RETURNVALUE" | |
| 166 >-1</SPAN | |
| 167 > on error.</P | |
| 168 ></DIV | |
| 169 ><DIV | |
| 170 CLASS="REFSECT1" | |
| 171 ><A | |
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172 NAME="AEN2768" |
| 0 | 173 ></A |
| 174 ><H2 | |
| 175 >Example</H2 | |
| 176 ><PRE | |
| 177 CLASS="PROGRAMLISTING" | |
| 178 >SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 ); | |
| 179 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 ); | |
| 180 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 ); | |
| 181 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 ); | |
| 182 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 ); | |
| 183 if ( (screen=SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL )) == NULL ) { | |
| 184 fprintf(stderr, "Couldn't set GL mode: %s\n", SDL_GetError()); | |
| 185 SDL_Quit(); | |
| 186 return; | |
| 187 }</PRE | |
| 188 ><DIV | |
| 189 CLASS="NOTE" | |
| 190 ><BLOCKQUOTE | |
| 191 CLASS="NOTE" | |
| 192 ><P | |
| 193 ><B | |
| 194 >Note: </B | |
| 195 >The <TT | |
| 196 CLASS="LITERAL" | |
| 197 >SDL_DOUBLEBUF</TT | |
| 198 > flag is not required to enable double buffering when setting an OpenGL video mode. Double buffering is enabled or disabled using the SDL_GL_DOUBLEBUFFER attribute.</P | |
| 199 ></BLOCKQUOTE | |
| 200 ></DIV | |
| 201 ></DIV | |
| 202 ><DIV | |
| 203 CLASS="REFSECT1" | |
| 204 ><A | |
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205 NAME="AEN2774" |
| 0 | 206 ></A |
| 207 ><H2 | |
| 208 >See Also</H2 | |
| 209 ><P | |
| 210 ><A | |
| 211 HREF="sdlglgetattribute.html" | |
| 212 ><TT | |
| 213 CLASS="FUNCTION" | |
| 214 >SDL_GL_GetAttribute</TT | |
| 215 ></A | |
| 216 >, | |
| 217 <A | |
| 218 HREF="sdlglattr.html" | |
| 219 >GL Attributes</A | |
| 220 ></P | |
| 221 ></DIV | |
| 222 ><DIV | |
| 223 CLASS="NAVFOOTER" | |
| 224 ><HR | |
| 225 ALIGN="LEFT" | |
| 226 WIDTH="100%"><TABLE | |
|
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227 SUMMARY="Footer navigation table" |
| 0 | 228 WIDTH="100%" |
| 229 BORDER="0" | |
| 230 CELLPADDING="0" | |
| 231 CELLSPACING="0" | |
| 232 ><TR | |
| 233 ><TD | |
| 234 WIDTH="33%" | |
| 235 ALIGN="left" | |
| 236 VALIGN="top" | |
| 237 ><A | |
| 238 HREF="sdlglgetattribute.html" | |
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239 ACCESSKEY="P" |
| 0 | 240 >Prev</A |
| 241 ></TD | |
| 242 ><TD | |
| 243 WIDTH="34%" | |
| 244 ALIGN="center" | |
| 245 VALIGN="top" | |
| 246 ><A | |
| 247 HREF="index.html" | |
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248 ACCESSKEY="H" |
| 0 | 249 >Home</A |
| 250 ></TD | |
| 251 ><TD | |
| 252 WIDTH="33%" | |
| 253 ALIGN="right" | |
| 254 VALIGN="top" | |
| 255 ><A | |
| 256 HREF="sdlglswapbuffers.html" | |
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257 ACCESSKEY="N" |
| 0 | 258 >Next</A |
| 259 ></TD | |
| 260 ></TR | |
| 261 ><TR | |
| 262 ><TD | |
| 263 WIDTH="33%" | |
| 264 ALIGN="left" | |
| 265 VALIGN="top" | |
| 266 >SDL_GL_GetAttribute</TD | |
| 267 ><TD | |
| 268 WIDTH="34%" | |
| 269 ALIGN="center" | |
| 270 VALIGN="top" | |
| 271 ><A | |
| 272 HREF="video.html" | |
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273 ACCESSKEY="U" |
| 0 | 274 >Up</A |
| 275 ></TD | |
| 276 ><TD | |
| 277 WIDTH="33%" | |
| 278 ALIGN="right" | |
| 279 VALIGN="top" | |
| 280 >SDL_GL_SwapBuffers</TD | |
| 281 ></TR | |
| 282 ></TABLE | |
| 283 ></DIV | |
| 284 ></BODY | |
| 285 ></HTML | |
| 286 > |