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annotate docs/html/sdlcdtrack.html @ 1257:448a9a64537b
[PATCH] SDL_GetVideoMode() does not find best mode, part 2
Following commit 1.51, I come accross a problem when SDL must choose between
several video modes that could suit the one asked.
If I ask 320x240 with this list:
768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200
The smallest selectables modes are 384x240 and 320x400. And SDL choose the later
in this list, but 384x240 is more suitable. So I added a check to compare
the pixel count (surface) of modes, and select the one which has the smallest
pixel count.
In my example, 384x240 has 92160 pixels, and 320x400 has 128000 pixels. So now
SDL will choose 384x240 for the asked 320x240 mode.
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Thu, 19 Jan 2006 21:28:52 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CDtrack</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="CD-ROM" | |
| 14 HREF="cdrom.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_CD" | |
| 17 HREF="sdlcd.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="Multi-threaded Programming" | |
| 20 HREF="thread.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="sdlcd.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="thread.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="SDLCDTRACK" | |
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74 ></A |
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75 >SDL_CDtrack</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN7628" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDtrack -- CD Track Information Structure</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSECT1" | |
| 86 ><A | |
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87 NAME="AEN7631" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Structure Definition</H2 | |
| 91 ><PRE | |
| 92 CLASS="PROGRAMLISTING" | |
| 93 >typedef struct{ | |
| 94 Uint8 id; | |
| 95 Uint8 type; | |
| 96 Uint32 length; | |
| 97 Uint32 offset; | |
| 98 } SDL_CDtrack;</PRE | |
| 99 ></DIV | |
| 100 ><DIV | |
| 101 CLASS="REFSECT1" | |
| 102 ><A | |
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103 NAME="AEN7634" |
| 0 | 104 ></A |
| 105 ><H2 | |
| 106 >Structure Data</H2 | |
| 107 ><DIV | |
| 108 CLASS="INFORMALTABLE" | |
| 109 ><A | |
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110 NAME="AEN7636" |
| 0 | 111 ></A |
| 112 ><P | |
| 113 ></P | |
| 114 ><TABLE | |
| 115 BORDER="0" | |
| 116 CLASS="CALSTABLE" | |
| 117 ><TBODY | |
| 118 ><TR | |
| 119 ><TD | |
| 120 ALIGN="LEFT" | |
| 121 VALIGN="TOP" | |
| 122 ><TT | |
| 123 CLASS="STRUCTFIELD" | |
| 124 ><I | |
| 125 >id</I | |
| 126 ></TT | |
| 127 ></TD | |
| 128 ><TD | |
| 129 ALIGN="LEFT" | |
| 130 VALIGN="TOP" | |
| 131 >Track number (0-99)</TD | |
| 132 ></TR | |
| 133 ><TR | |
| 134 ><TD | |
| 135 ALIGN="LEFT" | |
| 136 VALIGN="TOP" | |
| 137 ><TT | |
| 138 CLASS="STRUCTFIELD" | |
| 139 ><I | |
| 140 >type</I | |
| 141 ></TT | |
| 142 ></TD | |
| 143 ><TD | |
| 144 ALIGN="LEFT" | |
| 145 VALIGN="TOP" | |
| 146 ><TT | |
| 147 CLASS="LITERAL" | |
| 148 >SDL_AUDIO_TRACK</TT | |
| 149 > or <TT | |
| 150 CLASS="LITERAL" | |
| 151 >SDL_DATA_TRACK</TT | |
| 152 ></TD | |
| 153 ></TR | |
| 154 ><TR | |
| 155 ><TD | |
| 156 ALIGN="LEFT" | |
| 157 VALIGN="TOP" | |
| 158 ><TT | |
| 159 CLASS="STRUCTFIELD" | |
| 160 ><I | |
| 161 >length</I | |
| 162 ></TT | |
| 163 ></TD | |
| 164 ><TD | |
| 165 ALIGN="LEFT" | |
| 166 VALIGN="TOP" | |
| 167 >Length, in frames, of this track</TD | |
| 168 ></TR | |
| 169 ><TR | |
| 170 ><TD | |
| 171 ALIGN="LEFT" | |
| 172 VALIGN="TOP" | |
| 173 ><TT | |
| 174 CLASS="STRUCTFIELD" | |
| 175 ><I | |
| 176 >offset</I | |
| 177 ></TT | |
| 178 ></TD | |
| 179 ><TD | |
| 180 ALIGN="LEFT" | |
| 181 VALIGN="TOP" | |
| 182 >Frame offset to the beginning of this track</TD | |
| 183 ></TR | |
| 184 ></TBODY | |
| 185 ></TABLE | |
| 186 ><P | |
| 187 ></P | |
| 188 ></DIV | |
| 189 ></DIV | |
| 190 ><DIV | |
| 191 CLASS="REFSECT1" | |
| 192 ><A | |
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193 NAME="AEN7657" |
| 0 | 194 ></A |
| 195 ><H2 | |
| 196 >Description</H2 | |
| 197 ><P | |
| 198 ><SPAN | |
| 199 CLASS="STRUCTNAME" | |
| 200 >SDL_CDtrack</SPAN | |
| 201 > stores data on each track on a CD, its fields should be pretty self explainatory. It is a member a the <A | |
| 202 HREF="sdlcd.html" | |
| 203 ><SPAN | |
| 204 CLASS="STRUCTNAME" | |
| 205 >SDL_CD</SPAN | |
| 206 ></A | |
| 207 > structure.</P | |
| 208 ><DIV | |
| 209 CLASS="NOTE" | |
| 210 ><BLOCKQUOTE | |
| 211 CLASS="NOTE" | |
| 212 ><P | |
| 213 ><B | |
| 214 >Note: </B | |
| 215 >Frames can be converted to standard timings. There are <TT | |
| 216 CLASS="LITERAL" | |
| 217 >CD_FPS</TT | |
| 218 > frames per second, so <SPAN | |
| 219 CLASS="STRUCTNAME" | |
| 220 >SDL_CDtrack</SPAN | |
| 221 >.<TT | |
| 222 CLASS="STRUCTFIELD" | |
| 223 ><I | |
| 224 >length</I | |
| 225 ></TT | |
| 226 >/<TT | |
| 227 CLASS="LITERAL" | |
| 228 >CD_FPS</TT | |
| 229 >=length_in_seconds.</P | |
| 230 ></BLOCKQUOTE | |
| 231 ></DIV | |
| 232 ></DIV | |
| 233 ><DIV | |
| 234 CLASS="REFSECT1" | |
| 235 ><A | |
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236 NAME="AEN7669" |
| 0 | 237 ></A |
| 238 ><H2 | |
| 239 >See Also</H2 | |
| 240 ><P | |
| 241 ><A | |
| 242 HREF="sdlcd.html" | |
| 243 ><SPAN | |
| 244 CLASS="STRUCTNAME" | |
| 245 >SDL_CD</SPAN | |
| 246 ></A | |
| 247 ></P | |
| 248 ></DIV | |
| 249 ><DIV | |
| 250 CLASS="NAVFOOTER" | |
| 251 ><HR | |
| 252 ALIGN="LEFT" | |
| 253 WIDTH="100%"><TABLE | |
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254 SUMMARY="Footer navigation table" |
| 0 | 255 WIDTH="100%" |
| 256 BORDER="0" | |
| 257 CELLPADDING="0" | |
| 258 CELLSPACING="0" | |
| 259 ><TR | |
| 260 ><TD | |
| 261 WIDTH="33%" | |
| 262 ALIGN="left" | |
| 263 VALIGN="top" | |
| 264 ><A | |
| 265 HREF="sdlcd.html" | |
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266 ACCESSKEY="P" |
| 0 | 267 >Prev</A |
| 268 ></TD | |
| 269 ><TD | |
| 270 WIDTH="34%" | |
| 271 ALIGN="center" | |
| 272 VALIGN="top" | |
| 273 ><A | |
| 274 HREF="index.html" | |
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275 ACCESSKEY="H" |
| 0 | 276 >Home</A |
| 277 ></TD | |
| 278 ><TD | |
| 279 WIDTH="33%" | |
| 280 ALIGN="right" | |
| 281 VALIGN="top" | |
| 282 ><A | |
| 283 HREF="thread.html" | |
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284 ACCESSKEY="N" |
| 0 | 285 >Next</A |
| 286 ></TD | |
| 287 ></TR | |
| 288 ><TR | |
| 289 ><TD | |
| 290 WIDTH="33%" | |
| 291 ALIGN="left" | |
| 292 VALIGN="top" | |
| 293 >SDL_CD</TD | |
| 294 ><TD | |
| 295 WIDTH="34%" | |
| 296 ALIGN="center" | |
| 297 VALIGN="top" | |
| 298 ><A | |
| 299 HREF="cdrom.html" | |
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300 ACCESSKEY="U" |
| 0 | 301 >Up</A |
| 302 ></TD | |
| 303 ><TD | |
| 304 WIDTH="33%" | |
| 305 ALIGN="right" | |
| 306 VALIGN="top" | |
| 307 >Multi-threaded Programming</TD | |
| 308 ></TR | |
| 309 ></TABLE | |
| 310 ></DIV | |
| 311 ></BODY | |
| 312 ></HTML | |
| 313 > |