Mercurial > sdl-ios-xcode
annotate docs/html/sdlglattr.html @ 4347:38f22ed3a433 SDL-1.2
Option to fix bug #851
For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 17 Oct 2009 06:55:17 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_GLattr</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_FreeYUVOverlay" | |
| 17 HREF="sdlfreeyuvoverlay.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_Rect" | |
| 20 HREF="sdlrect.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="sdlfreeyuvoverlay.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="sdlrect.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="SDLGLATTR" | |
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74 ></A |
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75 >SDL_GLattr</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN2971" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_GLattr -- SDL GL Attributes</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSECT1" | |
| 86 ><A | |
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87 NAME="AEN2974" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Attributes</H2 | |
| 91 ><DIV | |
| 92 CLASS="INFORMALTABLE" | |
| 93 ><A | |
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94 NAME="AEN2976" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><TABLE | |
| 99 BORDER="0" | |
| 100 CLASS="CALSTABLE" | |
| 101 ><TBODY | |
| 102 ><TR | |
| 103 ><TD | |
| 104 ALIGN="LEFT" | |
| 105 VALIGN="TOP" | |
| 106 ><TT | |
| 107 CLASS="LITERAL" | |
| 108 >SDL_GL_RED_SIZE</TT | |
| 109 ></TD | |
| 110 ><TD | |
| 111 ALIGN="LEFT" | |
| 112 VALIGN="TOP" | |
| 113 >Size of the framebuffer red component, in bits</TD | |
| 114 ></TR | |
| 115 ><TR | |
| 116 ><TD | |
| 117 ALIGN="LEFT" | |
| 118 VALIGN="TOP" | |
| 119 ><TT | |
| 120 CLASS="LITERAL" | |
| 121 >SDL_GL_GREEN_SIZE</TT | |
| 122 ></TD | |
| 123 ><TD | |
| 124 ALIGN="LEFT" | |
| 125 VALIGN="TOP" | |
| 126 >Size of the framebuffer green component, in bits</TD | |
| 127 ></TR | |
| 128 ><TR | |
| 129 ><TD | |
| 130 ALIGN="LEFT" | |
| 131 VALIGN="TOP" | |
| 132 ><TT | |
| 133 CLASS="LITERAL" | |
| 134 >SDL_GL_BLUE_SIZE</TT | |
| 135 ></TD | |
| 136 ><TD | |
| 137 ALIGN="LEFT" | |
| 138 VALIGN="TOP" | |
| 139 >Size of the framebuffer blue component, in bits</TD | |
| 140 ></TR | |
| 141 ><TR | |
| 142 ><TD | |
| 143 ALIGN="LEFT" | |
| 144 VALIGN="TOP" | |
| 145 ><TT | |
| 146 CLASS="LITERAL" | |
| 147 >SDL_GL_ALPHA_SIZE</TT | |
| 148 ></TD | |
| 149 ><TD | |
| 150 ALIGN="LEFT" | |
| 151 VALIGN="TOP" | |
| 152 >Size of the framebuffer alpha component, in bits</TD | |
| 153 ></TR | |
| 154 ><TR | |
| 155 ><TD | |
| 156 ALIGN="LEFT" | |
| 157 VALIGN="TOP" | |
| 158 ><TT | |
| 159 CLASS="LITERAL" | |
| 160 >SDL_GL_DOUBLEBUFFER</TT | |
| 161 ></TD | |
| 162 ><TD | |
| 163 ALIGN="LEFT" | |
| 164 VALIGN="TOP" | |
| 165 >0 or 1, enable or disable double buffering</TD | |
| 166 ></TR | |
| 167 ><TR | |
| 168 ><TD | |
| 169 ALIGN="LEFT" | |
| 170 VALIGN="TOP" | |
| 171 ><TT | |
| 172 CLASS="LITERAL" | |
| 173 >SDL_GL_BUFFER_SIZE</TT | |
| 174 ></TD | |
| 175 ><TD | |
| 176 ALIGN="LEFT" | |
| 177 VALIGN="TOP" | |
| 178 >Size of the framebuffer, in bits</TD | |
| 179 ></TR | |
| 180 ><TR | |
| 181 ><TD | |
| 182 ALIGN="LEFT" | |
| 183 VALIGN="TOP" | |
| 184 ><TT | |
| 185 CLASS="LITERAL" | |
| 186 >SDL_GL_DEPTH_SIZE</TT | |
| 187 ></TD | |
| 188 ><TD | |
| 189 ALIGN="LEFT" | |
| 190 VALIGN="TOP" | |
| 191 >Size of the depth buffer, in bits</TD | |
| 192 ></TR | |
| 193 ><TR | |
| 194 ><TD | |
| 195 ALIGN="LEFT" | |
| 196 VALIGN="TOP" | |
| 197 ><TT | |
| 198 CLASS="LITERAL" | |
| 199 >SDL_GL_STENCIL_SIZE</TT | |
| 200 ></TD | |
| 201 ><TD | |
| 202 ALIGN="LEFT" | |
| 203 VALIGN="TOP" | |
| 204 >Size of the stencil buffer, in bits</TD | |
| 205 ></TR | |
| 206 ><TR | |
| 207 ><TD | |
| 208 ALIGN="LEFT" | |
| 209 VALIGN="TOP" | |
| 210 ><TT | |
| 211 CLASS="LITERAL" | |
| 212 >SDL_GL_ACCUM_RED_SIZE</TT | |
| 213 ></TD | |
| 214 ><TD | |
| 215 ALIGN="LEFT" | |
| 216 VALIGN="TOP" | |
| 217 >Size of the accumulation buffer red component, in bits</TD | |
| 218 ></TR | |
| 219 ><TR | |
| 220 ><TD | |
| 221 ALIGN="LEFT" | |
| 222 VALIGN="TOP" | |
| 223 ><TT | |
| 224 CLASS="LITERAL" | |
| 225 >SDL_GL_ACCUM_GREEN_SIZE</TT | |
| 226 ></TD | |
| 227 ><TD | |
| 228 ALIGN="LEFT" | |
| 229 VALIGN="TOP" | |
| 230 >Size of the accumulation buffer green component, in bits</TD | |
| 231 ></TR | |
| 232 ><TR | |
| 233 ><TD | |
| 234 ALIGN="LEFT" | |
| 235 VALIGN="TOP" | |
| 236 ><TT | |
| 237 CLASS="LITERAL" | |
| 238 >SDL_GL_ACCUM_BLUE_SIZE</TT | |
| 239 ></TD | |
| 240 ><TD | |
| 241 ALIGN="LEFT" | |
| 242 VALIGN="TOP" | |
| 243 >Size of the accumulation buffer blue component, in bits</TD | |
| 244 ></TR | |
| 245 ><TR | |
| 246 ><TD | |
| 247 ALIGN="LEFT" | |
| 248 VALIGN="TOP" | |
| 249 ><TT | |
| 250 CLASS="LITERAL" | |
| 251 >SDL_GL_ACCUM_ALPHA_SIZE</TT | |
| 252 ></TD | |
| 253 ><TD | |
| 254 ALIGN="LEFT" | |
| 255 VALIGN="TOP" | |
| 256 >Size of the accumulation buffer alpha component, in bits</TD | |
| 257 ></TR | |
| 258 ></TBODY | |
| 259 ></TABLE | |
| 260 ><P | |
| 261 ></P | |
| 262 ></DIV | |
| 263 ></DIV | |
| 264 ><DIV | |
| 265 CLASS="REFSECT1" | |
| 266 ><A | |
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267 NAME="AEN3027" |
| 0 | 268 ></A |
| 269 ><H2 | |
| 270 >Description</H2 | |
| 271 ><P | |
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272 >While you can set most OpenGL attributes normally, the attributes list above must be known <SPAN |
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273 CLASS="emphasis" |
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274 ><I |
| 0 | 275 CLASS="EMPHASIS" |
| 276 >before</I | |
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277 ></SPAN |
| 0 | 278 > SDL sets the video mode. These attributes a set and read with <A |
| 279 HREF="sdlglsetattribute.html" | |
| 280 ><TT | |
| 281 CLASS="FUNCTION" | |
| 282 >SDL_GL_SetAttribute</TT | |
| 283 ></A | |
| 284 > and <A | |
| 285 HREF="sdlglgetattribute.html" | |
| 286 ><TT | |
| 287 CLASS="FUNCTION" | |
| 288 >SDL_GL_GetAttribute</TT | |
| 289 ></A | |
| 290 >.</P | |
| 291 ></DIV | |
| 292 ><DIV | |
| 293 CLASS="REFSECT1" | |
| 294 ><A | |
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295 NAME="AEN3035" |
| 0 | 296 ></A |
| 297 ><H2 | |
| 298 >See Also</H2 | |
| 299 ><P | |
| 300 ><A | |
| 301 HREF="sdlglsetattribute.html" | |
| 302 ><TT | |
| 303 CLASS="FUNCTION" | |
| 304 >SDL_GL_SetAttribute</TT | |
| 305 ></A | |
| 306 >, | |
| 307 <A | |
| 308 HREF="sdlglgetattribute.html" | |
| 309 ><TT | |
| 310 CLASS="FUNCTION" | |
| 311 >SDL_GL_GetAttribute</TT | |
| 312 ></A | |
| 313 ></P | |
| 314 ></DIV | |
| 315 ><DIV | |
| 316 CLASS="NAVFOOTER" | |
| 317 ><HR | |
| 318 ALIGN="LEFT" | |
| 319 WIDTH="100%"><TABLE | |
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320 SUMMARY="Footer navigation table" |
| 0 | 321 WIDTH="100%" |
| 322 BORDER="0" | |
| 323 CELLPADDING="0" | |
| 324 CELLSPACING="0" | |
| 325 ><TR | |
| 326 ><TD | |
| 327 WIDTH="33%" | |
| 328 ALIGN="left" | |
| 329 VALIGN="top" | |
| 330 ><A | |
| 331 HREF="sdlfreeyuvoverlay.html" | |
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332 ACCESSKEY="P" |
| 0 | 333 >Prev</A |
| 334 ></TD | |
| 335 ><TD | |
| 336 WIDTH="34%" | |
| 337 ALIGN="center" | |
| 338 VALIGN="top" | |
| 339 ><A | |
| 340 HREF="index.html" | |
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341 ACCESSKEY="H" |
| 0 | 342 >Home</A |
| 343 ></TD | |
| 344 ><TD | |
| 345 WIDTH="33%" | |
| 346 ALIGN="right" | |
| 347 VALIGN="top" | |
| 348 ><A | |
| 349 HREF="sdlrect.html" | |
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350 ACCESSKEY="N" |
| 0 | 351 >Next</A |
| 352 ></TD | |
| 353 ></TR | |
| 354 ><TR | |
| 355 ><TD | |
| 356 WIDTH="33%" | |
| 357 ALIGN="left" | |
| 358 VALIGN="top" | |
| 359 >SDL_FreeYUVOverlay</TD | |
| 360 ><TD | |
| 361 WIDTH="34%" | |
| 362 ALIGN="center" | |
| 363 VALIGN="top" | |
| 364 ><A | |
| 365 HREF="video.html" | |
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366 ACCESSKEY="U" |
| 0 | 367 >Up</A |
| 368 ></TD | |
| 369 ><TD | |
| 370 WIDTH="33%" | |
| 371 ALIGN="right" | |
| 372 VALIGN="top" | |
| 373 >SDL_Rect</TD | |
| 374 ></TR | |
| 375 ></TABLE | |
| 376 ></DIV | |
| 377 ></BODY | |
| 378 ></HTML | |
| 379 > |