Mercurial > sdl-ios-xcode
annotate docs/html/sdlvideoinfo.html @ 102:9162d62280b5
Don't crash if freeing a hardware surface after the video mode has been
reset. Fortunately we keep track of the video memory internally.
| author | Sam Lantinga <slouken@lokigames.com> |
|---|---|
| date | Thu, 12 Jul 2001 23:34:44 +0000 |
| parents | 55f1f1b3e27d |
| children | e5bc29de3f0a |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_VideoInfo</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_Surface" | |
| 17 HREF="sdlsurface.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_Overlay" | |
| 20 HREF="sdloverlay.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="sdlsurface.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="sdloverlay.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="SDLVIDEOINFO" | |
| 71 >SDL_VideoInfo</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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76 NAME="AEN2968" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_VideoInfo -- Video Target information</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSECT1" | |
| 83 ><A | |
|
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|
84 NAME="AEN2971" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Structure Definition</H2 | |
| 88 ><PRE | |
| 89 CLASS="PROGRAMLISTING" | |
| 90 >typedef struct{ | |
| 91 Uint32 hw_available:1; | |
| 92 Uint32 wm_available:1; | |
| 93 Uint32 blit_hw:1; | |
| 94 Uint32 blit_hw_CC:1; | |
| 95 Uint32 blit_hw_A:1; | |
| 96 Uint32 blit_sw:1; | |
| 97 Uint32 blit_sw_CC:1; | |
| 98 Uint32 blit_sw_A:1; | |
| 99 Uint32 blit_fill; | |
| 100 Uint32 video_mem; | |
| 101 SDL_PixelFormat *vfmt; | |
| 102 } SDL_VideoInfo;</PRE | |
| 103 ></DIV | |
| 104 ><DIV | |
| 105 CLASS="REFSECT1" | |
| 106 ><A | |
|
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107 NAME="AEN2974" |
| 0 | 108 ></A |
| 109 ><H2 | |
| 110 >Structure Data</H2 | |
| 111 ><DIV | |
| 112 CLASS="INFORMALTABLE" | |
| 113 ><A | |
|
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114 NAME="AEN2976" |
| 0 | 115 ></A |
| 116 ><P | |
| 117 ></P | |
| 118 ><TABLE | |
| 119 BORDER="0" | |
| 120 CLASS="CALSTABLE" | |
| 121 ><TBODY | |
| 122 ><TR | |
| 123 ><TD | |
| 124 ALIGN="LEFT" | |
| 125 VALIGN="TOP" | |
| 126 ><TT | |
| 127 CLASS="STRUCTFIELD" | |
| 128 ><I | |
| 129 >hw_available</I | |
| 130 ></TT | |
| 131 ></TD | |
| 132 ><TD | |
| 133 ALIGN="LEFT" | |
| 134 VALIGN="TOP" | |
| 135 >Is it possible to create hardware surfaces?</TD | |
| 136 ></TR | |
| 137 ><TR | |
| 138 ><TD | |
| 139 ALIGN="LEFT" | |
| 140 VALIGN="TOP" | |
| 141 ><TT | |
| 142 CLASS="STRUCTFIELD" | |
| 143 ><I | |
| 144 >wm_available</I | |
| 145 ></TT | |
| 146 ></TD | |
| 147 ><TD | |
| 148 ALIGN="LEFT" | |
| 149 VALIGN="TOP" | |
| 150 >Is there a window manager available</TD | |
| 151 ></TR | |
| 152 ><TR | |
| 153 ><TD | |
| 154 ALIGN="LEFT" | |
| 155 VALIGN="TOP" | |
| 156 ><TT | |
| 157 CLASS="STRUCTFIELD" | |
| 158 ><I | |
| 159 >blit_hw</I | |
| 160 ></TT | |
| 161 ></TD | |
| 162 ><TD | |
| 163 ALIGN="LEFT" | |
| 164 VALIGN="TOP" | |
| 165 >Are hardware to hardware blits accelerated?</TD | |
| 166 ></TR | |
| 167 ><TR | |
| 168 ><TD | |
| 169 ALIGN="LEFT" | |
| 170 VALIGN="TOP" | |
| 171 ><TT | |
| 172 CLASS="STRUCTFIELD" | |
| 173 ><I | |
| 174 >blit_hw_CC</I | |
| 175 ></TT | |
| 176 ></TD | |
| 177 ><TD | |
| 178 ALIGN="LEFT" | |
| 179 VALIGN="TOP" | |
| 180 >Are hardware to hardware colorkey blits accelerated?</TD | |
| 181 ></TR | |
| 182 ><TR | |
| 183 ><TD | |
| 184 ALIGN="LEFT" | |
| 185 VALIGN="TOP" | |
| 186 ><TT | |
| 187 CLASS="STRUCTFIELD" | |
| 188 ><I | |
| 189 >blit_hw_A</I | |
| 190 ></TT | |
| 191 ></TD | |
| 192 ><TD | |
| 193 ALIGN="LEFT" | |
| 194 VALIGN="TOP" | |
| 195 >Are hardware to hardware alpha blits accelerated?</TD | |
| 196 ></TR | |
| 197 ><TR | |
| 198 ><TD | |
| 199 ALIGN="LEFT" | |
| 200 VALIGN="TOP" | |
| 201 ><TT | |
| 202 CLASS="STRUCTFIELD" | |
| 203 ><I | |
| 204 >blit_sw</I | |
| 205 ></TT | |
| 206 ></TD | |
| 207 ><TD | |
| 208 ALIGN="LEFT" | |
| 209 VALIGN="TOP" | |
| 210 >Are software to hardware blits accelerated?</TD | |
| 211 ></TR | |
| 212 ><TR | |
| 213 ><TD | |
| 214 ALIGN="LEFT" | |
| 215 VALIGN="TOP" | |
| 216 ><TT | |
| 217 CLASS="STRUCTFIELD" | |
| 218 ><I | |
| 219 >blit_sw_CC</I | |
| 220 ></TT | |
| 221 ></TD | |
| 222 ><TD | |
| 223 ALIGN="LEFT" | |
| 224 VALIGN="TOP" | |
| 225 >Are software to hardware colorkey blits accelerated?</TD | |
| 226 ></TR | |
| 227 ><TR | |
| 228 ><TD | |
| 229 ALIGN="LEFT" | |
| 230 VALIGN="TOP" | |
| 231 ><TT | |
| 232 CLASS="STRUCTFIELD" | |
| 233 ><I | |
| 234 >blit_sw_A</I | |
| 235 ></TT | |
| 236 ></TD | |
| 237 ><TD | |
| 238 ALIGN="LEFT" | |
| 239 VALIGN="TOP" | |
| 240 >Are software to hardware alpha blits accelerated?</TD | |
| 241 ></TR | |
| 242 ><TR | |
| 243 ><TD | |
| 244 ALIGN="LEFT" | |
| 245 VALIGN="TOP" | |
| 246 ><TT | |
| 247 CLASS="STRUCTFIELD" | |
| 248 ><I | |
| 249 >blit_fill</I | |
| 250 ></TT | |
| 251 ></TD | |
| 252 ><TD | |
| 253 ALIGN="LEFT" | |
| 254 VALIGN="TOP" | |
| 255 >Are color fills accelerated?</TD | |
| 256 ></TR | |
| 257 ><TR | |
| 258 ><TD | |
| 259 ALIGN="LEFT" | |
| 260 VALIGN="TOP" | |
| 261 ><TT | |
| 262 CLASS="STRUCTFIELD" | |
| 263 ><I | |
| 264 >video_mem</I | |
| 265 ></TT | |
| 266 ></TD | |
| 267 ><TD | |
| 268 ALIGN="LEFT" | |
| 269 VALIGN="TOP" | |
| 270 >Total amount of video memory in Kilobytes</TD | |
| 271 ></TR | |
| 272 ><TR | |
| 273 ><TD | |
| 274 ALIGN="LEFT" | |
| 275 VALIGN="TOP" | |
| 276 ><TT | |
| 277 CLASS="STRUCTFIELD" | |
| 278 ><I | |
| 279 >vfmt</I | |
| 280 ></TT | |
| 281 ></TD | |
| 282 ><TD | |
| 283 ALIGN="LEFT" | |
| 284 VALIGN="TOP" | |
| 285 ><A | |
| 286 HREF="sdlpixelformat.html" | |
| 287 >Pixel format</A | |
| 288 > of the video device</TD | |
| 289 ></TR | |
| 290 ></TBODY | |
| 291 ></TABLE | |
| 292 ><P | |
| 293 ></P | |
| 294 ></DIV | |
| 295 ></DIV | |
| 296 ><DIV | |
| 297 CLASS="REFSECT1" | |
| 298 ><A | |
|
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55f1f1b3e27d
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parents:
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diff
changeset
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299 NAME="AEN3024" |
| 0 | 300 ></A |
| 301 ><H2 | |
| 302 >Description</H2 | |
| 303 ><P | |
| 304 >This (read-only) structure is returned by <A | |
| 305 HREF="sdlgetvideoinfo.html" | |
| 306 ><TT | |
| 307 CLASS="FUNCTION" | |
| 308 >SDL_GetVideoInfo</TT | |
| 309 ></A | |
| 310 >. It contains information on either the 'best' available mode (if called before <A | |
| 311 HREF="sdlsetvideomode.html" | |
| 312 ><TT | |
| 313 CLASS="FUNCTION" | |
| 314 >SDL_SetVideoMode</TT | |
| 315 ></A | |
| 316 >) or the current video mode.</P | |
| 317 ></DIV | |
| 318 ><DIV | |
| 319 CLASS="REFSECT1" | |
| 320 ><A | |
|
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diff
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321 NAME="AEN3031" |
| 0 | 322 ></A |
| 323 ><H2 | |
| 324 >See Also</H2 | |
| 325 ><P | |
| 326 ><A | |
| 327 HREF="sdlpixelformat.html" | |
| 328 ><SPAN | |
| 329 CLASS="STRUCTNAME" | |
| 330 >SDL_PixelFormat</SPAN | |
| 331 ></A | |
| 332 >, | |
| 333 <A | |
| 334 HREF="sdlgetvideoinfo.html" | |
| 335 ><TT | |
| 336 CLASS="FUNCTION" | |
| 337 >SDL_GetVideoInfo</TT | |
| 338 ></A | |
| 339 ></P | |
| 340 ></DIV | |
| 341 ><DIV | |
| 342 CLASS="NAVFOOTER" | |
| 343 ><HR | |
| 344 ALIGN="LEFT" | |
| 345 WIDTH="100%"><TABLE | |
| 346 WIDTH="100%" | |
| 347 BORDER="0" | |
| 348 CELLPADDING="0" | |
| 349 CELLSPACING="0" | |
| 350 ><TR | |
| 351 ><TD | |
| 352 WIDTH="33%" | |
| 353 ALIGN="left" | |
| 354 VALIGN="top" | |
| 355 ><A | |
| 356 HREF="sdlsurface.html" | |
| 357 >Prev</A | |
| 358 ></TD | |
| 359 ><TD | |
| 360 WIDTH="34%" | |
| 361 ALIGN="center" | |
| 362 VALIGN="top" | |
| 363 ><A | |
| 364 HREF="index.html" | |
| 365 >Home</A | |
| 366 ></TD | |
| 367 ><TD | |
| 368 WIDTH="33%" | |
| 369 ALIGN="right" | |
| 370 VALIGN="top" | |
| 371 ><A | |
| 372 HREF="sdloverlay.html" | |
| 373 >Next</A | |
| 374 ></TD | |
| 375 ></TR | |
| 376 ><TR | |
| 377 ><TD | |
| 378 WIDTH="33%" | |
| 379 ALIGN="left" | |
| 380 VALIGN="top" | |
| 381 >SDL_Surface</TD | |
| 382 ><TD | |
| 383 WIDTH="34%" | |
| 384 ALIGN="center" | |
| 385 VALIGN="top" | |
| 386 ><A | |
| 387 HREF="video.html" | |
| 388 >Up</A | |
| 389 ></TD | |
| 390 ><TD | |
| 391 WIDTH="33%" | |
| 392 ALIGN="right" | |
| 393 VALIGN="top" | |
| 394 >SDL_Overlay</TD | |
| 395 ></TR | |
| 396 ></TABLE | |
| 397 ></DIV | |
| 398 ></BODY | |
| 399 ></HTML | |
| 400 > |