Mercurial > sdl-ios-xcode
annotate docs/html/sdlcreateyuvoverlay.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_CreateYUVOverlay</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_GL_SwapBuffers" | |
| 17 HREF="sdlglswapbuffers.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_LockYUVOverlay" | |
| 20 HREF="sdllockyuvoverlay.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="sdlglswapbuffers.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="sdllockyuvoverlay.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="SDLCREATEYUVOVERLAY" | |
| 71 >SDL_CreateYUVOverlay</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
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76 NAME="AEN2424" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_CreateYUVOverlay -- Create a YUV video overlay</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN2427" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
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91 NAME="AEN2428" |
| 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_Overlay *<B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_CreateYUVOverlay</B | |
| 105 ></CODE | |
| 106 >(int width, int height, Uint32 format, SDL_Surface *display);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
|
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115 NAME="AEN2434" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
| 120 ><TT | |
| 121 CLASS="FUNCTION" | |
| 122 >SDL_CreateYUVOverlay</TT | |
| 123 > creates a YUV overlay of the specified <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >width</I | |
| 127 ></TT | |
| 128 >, <TT | |
| 129 CLASS="PARAMETER" | |
| 130 ><I | |
| 131 >height</I | |
| 132 ></TT | |
| 133 > and <TT | |
| 134 CLASS="PARAMETER" | |
| 135 ><I | |
| 136 >format</I | |
| 137 ></TT | |
| 138 > (see <A | |
| 139 HREF="sdloverlay.html" | |
| 140 ><SPAN | |
| 141 CLASS="STRUCTNAME" | |
| 142 >SDL_Overlay</SPAN | |
| 143 ></A | |
| 144 > for a list of available formats), for the provided <TT | |
| 145 CLASS="PARAMETER" | |
| 146 ><I | |
| 147 >display</I | |
| 148 ></TT | |
| 149 >. A <A | |
| 150 HREF="sdloverlay.html" | |
| 151 ><SPAN | |
| 152 CLASS="STRUCTNAME" | |
| 153 >SDL_Overlay</SPAN | |
| 154 ></A | |
| 155 > structure is returned.</P | |
| 156 ><P | |
| 157 >The term 'overlay' is a misnomer since, unless the overlay is created in hardware, the contents for the display surface underneath the area where the overlay is shown will be overwritten when the overlay is displayed.</P | |
| 158 ></DIV | |
| 159 ><DIV | |
| 160 CLASS="REFSECT1" | |
| 161 ><A | |
|
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162 NAME="AEN2447" |
| 0 | 163 ></A |
| 164 ><H2 | |
| 165 >See Also</H2 | |
| 166 ><P | |
| 167 ><A | |
| 168 HREF="sdloverlay.html" | |
| 169 ><SPAN | |
| 170 CLASS="STRUCTNAME" | |
| 171 >SDL_Overlay</SPAN | |
| 172 ></A | |
| 173 >, | |
| 174 <A | |
| 175 HREF="sdldisplayyuvoverlay.html" | |
| 176 ><TT | |
| 177 CLASS="FUNCTION" | |
| 178 >SDL_DisplayYUVOverlay</TT | |
| 179 ></A | |
| 180 >, | |
| 181 <A | |
| 182 HREF="sdlfreeyuvoverlay.html" | |
| 183 ><TT | |
| 184 CLASS="FUNCTION" | |
| 185 >SDL_FreeYUVOverlay</TT | |
| 186 ></A | |
| 187 ></P | |
| 188 ></DIV | |
| 189 ><DIV | |
| 190 CLASS="NAVFOOTER" | |
| 191 ><HR | |
| 192 ALIGN="LEFT" | |
| 193 WIDTH="100%"><TABLE | |
| 194 WIDTH="100%" | |
| 195 BORDER="0" | |
| 196 CELLPADDING="0" | |
| 197 CELLSPACING="0" | |
| 198 ><TR | |
| 199 ><TD | |
| 200 WIDTH="33%" | |
| 201 ALIGN="left" | |
| 202 VALIGN="top" | |
| 203 ><A | |
| 204 HREF="sdlglswapbuffers.html" | |
| 205 >Prev</A | |
| 206 ></TD | |
| 207 ><TD | |
| 208 WIDTH="34%" | |
| 209 ALIGN="center" | |
| 210 VALIGN="top" | |
| 211 ><A | |
| 212 HREF="index.html" | |
| 213 >Home</A | |
| 214 ></TD | |
| 215 ><TD | |
| 216 WIDTH="33%" | |
| 217 ALIGN="right" | |
| 218 VALIGN="top" | |
| 219 ><A | |
| 220 HREF="sdllockyuvoverlay.html" | |
| 221 >Next</A | |
| 222 ></TD | |
| 223 ></TR | |
| 224 ><TR | |
| 225 ><TD | |
| 226 WIDTH="33%" | |
| 227 ALIGN="left" | |
| 228 VALIGN="top" | |
| 229 >SDL_GL_SwapBuffers</TD | |
| 230 ><TD | |
| 231 WIDTH="34%" | |
| 232 ALIGN="center" | |
| 233 VALIGN="top" | |
| 234 ><A | |
| 235 HREF="video.html" | |
| 236 >Up</A | |
| 237 ></TD | |
| 238 ><TD | |
| 239 WIDTH="33%" | |
| 240 ALIGN="right" | |
| 241 VALIGN="top" | |
| 242 >SDL_LockYUVOverlay</TD | |
| 243 ></TR | |
| 244 ></TABLE | |
| 245 ></DIV | |
| 246 ></BODY | |
| 247 ></HTML | |
| 248 > |