Mercurial > sdl-ios-xcode
annotate docs/html/sdlgetvideoinfo.html @ 641:df178851293b
Date: 28 Jun 2003 22:42:52 +0100
From: Alan Swanson
Subject: Re: [SDL] New XFree 4.3 Video Mode Patch
I have a wee amendment that moves the qsort in set_best_resolution
to only occur after failing to find an exact match only. This would
make absolutely sure we get a user set mode.
While I've never had any problems for my normal resolutions (1280x1024,
1024x768, 800x600 & 640,480) while closely examining the output from
qsort I've noticed it doesn't seem to sort the modes fully. These is
one definite wrong at 1152x768 and a few that just look wrong to me.
From a program (attached) I made to examine this more easily. X has
sorted its mode list using the same method as ours (plus frequency),
and our user modes get inserted without any other movement.
On the patch I've made I've also changed cmpmodes to sort on vertical
resolution and then horizontal. Ie vertical is now most significant
bit.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 28 Jun 2003 21:52:26 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_GetVideoInfo</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_GetVideoSurface" | |
| 17 HREF="sdlgetvideosurface.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_VideoDriverName" | |
| 20 HREF="sdlvideodrivername.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="sdlgetvideosurface.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="sdlvideodrivername.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="SDLGETVIDEOINFO" | |
| 71 >SDL_GetVideoInfo</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
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76 NAME="AEN717" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_GetVideoInfo -- returns a pointer to information about the video hardware</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN720" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
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91 NAME="AEN721" |
| 0 | 92 ></A |
| 93 ><P | |
| 94 ></P | |
| 95 ><PRE | |
| 96 CLASS="FUNCSYNOPSISINFO" | |
| 97 >#include "SDL.h"</PRE | |
| 98 ><P | |
| 99 ><CODE | |
| 100 ><CODE | |
| 101 CLASS="FUNCDEF" | |
| 102 >SDL_VideoInfo *<B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_GetVideoInfo</B | |
| 105 ></CODE | |
| 106 >(void);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
|
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115 NAME="AEN727" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
| 120 >This function returns a read-only pointer to <A | |
| 121 HREF="sdlvideoinfo.html" | |
| 122 >information</A | |
| 123 > about the video | |
| 124 hardware. If this is called before <A | |
| 125 HREF="sdlsetvideomode.html" | |
| 126 >SDL_SetVideoMode</A | |
| 127 >, the | |
| 128 <TT | |
| 129 CLASS="STRUCTFIELD" | |
| 130 ><I | |
| 131 >vfmt</I | |
| 132 ></TT | |
| 133 > member of the returned structure will contain the | |
| 134 pixel format of the "best" video mode.</P | |
| 135 ></DIV | |
| 136 ><DIV | |
| 137 CLASS="REFSECT1" | |
| 138 ><A | |
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139 NAME="AEN733" |
| 0 | 140 ></A |
| 141 ><H2 | |
| 142 >See Also</H2 | |
| 143 ><P | |
| 144 ><A | |
| 145 HREF="sdlsetvideomode.html" | |
| 146 ><TT | |
| 147 CLASS="FUNCTION" | |
| 148 >SDL_SetVideoMode</TT | |
| 149 ></A | |
| 150 >, | |
| 151 <A | |
| 152 HREF="sdlvideoinfo.html" | |
| 153 ><SPAN | |
| 154 CLASS="STRUCTNAME" | |
| 155 >SDL_VideoInfo</SPAN | |
| 156 ></A | |
| 157 ></P | |
| 158 ></DIV | |
| 159 ><DIV | |
| 160 CLASS="NAVFOOTER" | |
| 161 ><HR | |
| 162 ALIGN="LEFT" | |
| 163 WIDTH="100%"><TABLE | |
| 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="sdlgetvideosurface.html" | |
| 175 >Prev</A | |
| 176 ></TD | |
| 177 ><TD | |
| 178 WIDTH="34%" | |
| 179 ALIGN="center" | |
| 180 VALIGN="top" | |
| 181 ><A | |
| 182 HREF="index.html" | |
| 183 >Home</A | |
| 184 ></TD | |
| 185 ><TD | |
| 186 WIDTH="33%" | |
| 187 ALIGN="right" | |
| 188 VALIGN="top" | |
| 189 ><A | |
| 190 HREF="sdlvideodrivername.html" | |
| 191 >Next</A | |
| 192 ></TD | |
| 193 ></TR | |
| 194 ><TR | |
| 195 ><TD | |
| 196 WIDTH="33%" | |
| 197 ALIGN="left" | |
| 198 VALIGN="top" | |
| 199 >SDL_GetVideoSurface</TD | |
| 200 ><TD | |
| 201 WIDTH="34%" | |
| 202 ALIGN="center" | |
| 203 VALIGN="top" | |
| 204 ><A | |
| 205 HREF="video.html" | |
| 206 >Up</A | |
| 207 ></TD | |
| 208 ><TD | |
| 209 WIDTH="33%" | |
| 210 ALIGN="right" | |
| 211 VALIGN="top" | |
| 212 >SDL_VideoDriverName</TD | |
| 213 ></TR | |
| 214 ></TABLE | |
| 215 ></DIV | |
| 216 ></BODY | |
| 217 ></HTML | |
| 218 > |