Mercurial > sdl-ios-xcode
annotate docs/html/sdlupdaterect.html @ 3096:ae4e80dbe330
Date: Tue, 17 Feb 2009 14:00:25 +0100
From: Stefan Klug
Subject: [SDL] Possible bug, paused audio playing garbage
On my WinCE device a paused audio device plays random garbage.
This might also be the issue in the thread "sound cracks with SDL_mixer
and AUDIO_S16LSB"
I don't have that much knowledge of the SDL audio part, but the attached
patch fixes it for me, and collapses two redundant ifs.
I'm not sure if this is the correct way to fix this.
Shouldn't the complete stream conversion part of the RunAudio loop be
dependent on the paused property of the device? (not only the call to
(*fill)(udata, istream, istream_len).
Anyways. Would be great if the patch or a fix could find its way to SVN ;-)
Cheers
Stefan
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 23 Mar 2009 05:21:40 +0000 |
| parents | 355632dca928 |
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| rev | line source |
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| 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 1.76b+ |
| 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 | |
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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="sdlsetvideomode.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="sdlupdaterects.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="SDLUPDATERECT" | |
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74 ></A |
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75 >SDL_UpdateRect</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN1355" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_UpdateRect -- Makes sure the given area is updated on the given screen.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN1358" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN1359" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h"</PRE | |
| 101 ><P | |
| 102 ><CODE | |
| 103 ><CODE | |
| 104 CLASS="FUNCDEF" | |
| 105 >void <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_UpdateRect</B | |
| 108 ></CODE | |
| 109 >(SDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN1365" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
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123 >Makes sure the given area is updated on the given screen. The rectangle must |
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124 be confined within the screen boundaries (no clipping is done).</P |
| 0 | 125 ><P |
| 126 >If '<TT | |
| 127 CLASS="PARAMETER" | |
| 128 ><I | |
| 129 >x</I | |
| 130 ></TT | |
| 131 >', '<TT | |
| 132 CLASS="PARAMETER" | |
| 133 ><I | |
| 134 >y</I | |
| 135 ></TT | |
| 136 >', '<TT | |
| 137 CLASS="PARAMETER" | |
| 138 ><I | |
| 139 >w</I | |
| 140 ></TT | |
| 141 >' | |
| 142 and '<TT | |
| 143 CLASS="PARAMETER" | |
| 144 ><I | |
| 145 >h</I | |
| 146 ></TT | |
| 147 >' are all 0, | |
| 148 <TT | |
| 149 CLASS="FUNCTION" | |
| 150 >SDL_UpdateRect</TT | |
| 151 > will update the | |
| 152 entire screen.</P | |
| 153 ><P | |
| 154 >This function should not be called while '<TT | |
| 155 CLASS="PARAMETER" | |
| 156 ><I | |
| 157 >screen</I | |
| 158 ></TT | |
| 159 >' is | |
| 160 <A | |
| 161 HREF="sdllocksurface.html" | |
| 162 >locked</A | |
| 163 >.</P | |
| 164 ></DIV | |
| 165 ><DIV | |
| 166 CLASS="REFSECT1" | |
| 167 ><A | |
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168 NAME="AEN1377" |
| 0 | 169 ></A |
| 170 ><H2 | |
| 171 >See Also</H2 | |
| 172 ><P | |
| 173 ><A | |
| 174 HREF="sdlupdaterects.html" | |
| 175 ><TT | |
| 176 CLASS="FUNCTION" | |
| 177 >SDL_UpdateRects</TT | |
| 178 ></A | |
| 179 >, | |
| 180 <A | |
| 181 HREF="sdlrect.html" | |
| 182 ><SPAN | |
| 183 CLASS="STRUCTNAME" | |
| 184 >SDL_Rect</SPAN | |
| 185 ></A | |
| 186 >, | |
| 187 <A | |
| 188 HREF="sdlsurface.html" | |
| 189 ><SPAN | |
| 190 CLASS="STRUCTNAME" | |
| 191 >SDL_Surface</SPAN | |
| 192 ></A | |
| 193 >, | |
| 194 <A | |
| 195 HREF="sdllocksurface.html" | |
| 196 ><TT | |
| 197 CLASS="FUNCTION" | |
| 198 >SDL_LockSurface</TT | |
| 199 ></A | |
| 200 ></P | |
| 201 ></DIV | |
| 202 ><DIV | |
| 203 CLASS="NAVFOOTER" | |
| 204 ><HR | |
| 205 ALIGN="LEFT" | |
| 206 WIDTH="100%"><TABLE | |
|
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207 SUMMARY="Footer navigation table" |
| 0 | 208 WIDTH="100%" |
| 209 BORDER="0" | |
| 210 CELLPADDING="0" | |
| 211 CELLSPACING="0" | |
| 212 ><TR | |
| 213 ><TD | |
| 214 WIDTH="33%" | |
| 215 ALIGN="left" | |
| 216 VALIGN="top" | |
| 217 ><A | |
| 218 HREF="sdlsetvideomode.html" | |
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219 ACCESSKEY="P" |
| 0 | 220 >Prev</A |
| 221 ></TD | |
| 222 ><TD | |
| 223 WIDTH="34%" | |
| 224 ALIGN="center" | |
| 225 VALIGN="top" | |
| 226 ><A | |
| 227 HREF="index.html" | |
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228 ACCESSKEY="H" |
| 0 | 229 >Home</A |
| 230 ></TD | |
| 231 ><TD | |
| 232 WIDTH="33%" | |
| 233 ALIGN="right" | |
| 234 VALIGN="top" | |
| 235 ><A | |
| 236 HREF="sdlupdaterects.html" | |
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237 ACCESSKEY="N" |
| 0 | 238 >Next</A |
| 239 ></TD | |
| 240 ></TR | |
| 241 ><TR | |
| 242 ><TD | |
| 243 WIDTH="33%" | |
| 244 ALIGN="left" | |
| 245 VALIGN="top" | |
| 246 >SDL_SetVideoMode</TD | |
| 247 ><TD | |
| 248 WIDTH="34%" | |
| 249 ALIGN="center" | |
| 250 VALIGN="top" | |
| 251 ><A | |
| 252 HREF="video.html" | |
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253 ACCESSKEY="U" |
| 0 | 254 >Up</A |
| 255 ></TD | |
| 256 ><TD | |
| 257 WIDTH="33%" | |
| 258 ALIGN="right" | |
| 259 VALIGN="top" | |
| 260 >SDL_UpdateRects</TD | |
| 261 ></TR | |
| 262 ></TABLE | |
| 263 ></DIV | |
| 264 ></BODY | |
| 265 ></HTML | |
| 266 > |