Mercurial > sdl-ios-xcode
annotate docs/html/sdlupdaterect.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_UpdateRect</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_SetVideoMode" | |
| 17 HREF="sdlsetvideomode.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_UpdateRects" | |
| 20 HREF="sdlupdaterects.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="sdlsetvideomode.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="sdlupdaterects.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="SDLUPDATERECT" | |
| 71 >SDL_UpdateRect</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
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76 NAME="AEN971" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_UpdateRect -- Makes sure the given area is updated on the given screen.</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN974" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
|
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91 NAME="AEN975" |
| 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 >void <B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_UpdateRect</B | |
| 105 ></CODE | |
| 106 >(SDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
|
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115 NAME="AEN981" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
|
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120 >Makes sure the given area is updated on the given screen. The rectangle must |
|
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121 be confined within the screen boundaries (no clipping is done).</P |
| 0 | 122 ><P |
| 123 >If '<TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >x</I | |
| 127 ></TT | |
| 128 >', '<TT | |
| 129 CLASS="PARAMETER" | |
| 130 ><I | |
| 131 >y</I | |
| 132 ></TT | |
| 133 >', '<TT | |
| 134 CLASS="PARAMETER" | |
| 135 ><I | |
| 136 >w</I | |
| 137 ></TT | |
| 138 >' | |
| 139 and '<TT | |
| 140 CLASS="PARAMETER" | |
| 141 ><I | |
| 142 >h</I | |
| 143 ></TT | |
| 144 >' are all 0, | |
| 145 <TT | |
| 146 CLASS="FUNCTION" | |
| 147 >SDL_UpdateRect</TT | |
| 148 > will update the | |
| 149 entire screen.</P | |
| 150 ><P | |
| 151 >This function should not be called while '<TT | |
| 152 CLASS="PARAMETER" | |
| 153 ><I | |
| 154 >screen</I | |
| 155 ></TT | |
| 156 >' is | |
| 157 <A | |
| 158 HREF="sdllocksurface.html" | |
| 159 >locked</A | |
| 160 >.</P | |
| 161 ></DIV | |
| 162 ><DIV | |
| 163 CLASS="REFSECT1" | |
| 164 ><A | |
|
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165 NAME="AEN993" |
| 0 | 166 ></A |
| 167 ><H2 | |
| 168 >See Also</H2 | |
| 169 ><P | |
| 170 ><A | |
| 171 HREF="sdlupdaterects.html" | |
| 172 ><TT | |
| 173 CLASS="FUNCTION" | |
| 174 >SDL_UpdateRects</TT | |
| 175 ></A | |
| 176 >, | |
| 177 <A | |
| 178 HREF="sdlrect.html" | |
| 179 ><SPAN | |
| 180 CLASS="STRUCTNAME" | |
| 181 >SDL_Rect</SPAN | |
| 182 ></A | |
| 183 >, | |
| 184 <A | |
| 185 HREF="sdlsurface.html" | |
| 186 ><SPAN | |
| 187 CLASS="STRUCTNAME" | |
| 188 >SDL_Surface</SPAN | |
| 189 ></A | |
| 190 >, | |
| 191 <A | |
| 192 HREF="sdllocksurface.html" | |
| 193 ><TT | |
| 194 CLASS="FUNCTION" | |
| 195 >SDL_LockSurface</TT | |
| 196 ></A | |
| 197 ></P | |
| 198 ></DIV | |
| 199 ><DIV | |
| 200 CLASS="NAVFOOTER" | |
| 201 ><HR | |
| 202 ALIGN="LEFT" | |
| 203 WIDTH="100%"><TABLE | |
| 204 WIDTH="100%" | |
| 205 BORDER="0" | |
| 206 CELLPADDING="0" | |
| 207 CELLSPACING="0" | |
| 208 ><TR | |
| 209 ><TD | |
| 210 WIDTH="33%" | |
| 211 ALIGN="left" | |
| 212 VALIGN="top" | |
| 213 ><A | |
| 214 HREF="sdlsetvideomode.html" | |
| 215 >Prev</A | |
| 216 ></TD | |
| 217 ><TD | |
| 218 WIDTH="34%" | |
| 219 ALIGN="center" | |
| 220 VALIGN="top" | |
| 221 ><A | |
| 222 HREF="index.html" | |
| 223 >Home</A | |
| 224 ></TD | |
| 225 ><TD | |
| 226 WIDTH="33%" | |
| 227 ALIGN="right" | |
| 228 VALIGN="top" | |
| 229 ><A | |
| 230 HREF="sdlupdaterects.html" | |
| 231 >Next</A | |
| 232 ></TD | |
| 233 ></TR | |
| 234 ><TR | |
| 235 ><TD | |
| 236 WIDTH="33%" | |
| 237 ALIGN="left" | |
| 238 VALIGN="top" | |
| 239 >SDL_SetVideoMode</TD | |
| 240 ><TD | |
| 241 WIDTH="34%" | |
| 242 ALIGN="center" | |
| 243 VALIGN="top" | |
| 244 ><A | |
| 245 HREF="video.html" | |
| 246 >Up</A | |
| 247 ></TD | |
| 248 ><TD | |
| 249 WIDTH="33%" | |
| 250 ALIGN="right" | |
| 251 VALIGN="top" | |
| 252 >SDL_UpdateRects</TD | |
| 253 ></TR | |
| 254 ></TABLE | |
| 255 ></DIV | |
| 256 ></BODY | |
| 257 ></HTML | |
| 258 > |