Mercurial > sdl-ios-xcode
annotate docs/html/sdlenablekeyrepeat.html @ 2042:3908e1f808e1
Fixed bug #292
I might be on crack here.
It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and
right channels of a stereo stream together, and clamps the new mono channel if
it would overflow.
Shouldn't it be dividing by 2 to average the two sample points instead of
clamping? Otherwise the mono sample point's volume doubles in the conversion.
This would also make the conversion faster, as it replaces two branches per
sample frame with a bitwise shift.
--ryan.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 24 Sep 2006 15:56:36 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_EnableKeyRepeat</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="Event Functions." | |
| 14 HREF="eventfunctions.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_EnableUNICODE" | |
| 17 HREF="sdlenableunicode.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_GetMouseState" | |
| 20 HREF="sdlgetmousestate.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="sdlenableunicode.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="sdlgetmousestate.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="SDLENABLEKEYREPEAT" | |
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74 ></A |
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75 >SDL_EnableKeyRepeat</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN5839" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_EnableKeyRepeat -- Set keyboard repeat rate.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN5842" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN5843" |
| 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 >int <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_EnableKeyRepeat</B | |
| 108 ></CODE | |
| 109 >(int delay, int interval);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN5849" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Enables or disables the keyboard repeat rate. <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >delay</I | |
| 127 ></TT | |
| 128 > specifies how long the key must be pressed before it begins repeating, it then repeats at the speed specified by <TT | |
| 129 CLASS="PARAMETER" | |
| 130 ><I | |
| 131 >interval</I | |
| 132 ></TT | |
| 133 >. Both <TT | |
| 134 CLASS="PARAMETER" | |
| 135 ><I | |
| 136 >delay</I | |
| 137 ></TT | |
| 138 > and <TT | |
| 139 CLASS="PARAMETER" | |
| 140 ><I | |
| 141 >interval</I | |
| 142 ></TT | |
| 143 > are expressed in milliseconds.</P | |
| 144 ><P | |
| 145 >Setting <TT | |
| 146 CLASS="PARAMETER" | |
| 147 ><I | |
| 148 >delay</I | |
| 149 ></TT | |
| 150 > to 0 disables key repeating completely. Good default values are <TT | |
| 151 CLASS="LITERAL" | |
| 152 >SDL_DEFAULT_REPEAT_DELAY</TT | |
| 153 > and <SPAN | |
| 154 CLASS="SYMBOL" | |
| 155 >SDL_DEFAULT_REPEAT_INTERVAL</SPAN | |
| 156 >.</P | |
| 157 ></DIV | |
| 158 ><DIV | |
| 159 CLASS="REFSECT1" | |
| 160 ><A | |
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161 NAME="AEN5860" |
| 0 | 162 ></A |
| 163 ><H2 | |
| 164 >Return Value</H2 | |
| 165 ><P | |
| 166 >Returns <SPAN | |
| 167 CLASS="RETURNVALUE" | |
| 168 >0</SPAN | |
| 169 > on success and <SPAN | |
| 170 CLASS="RETURNVALUE" | |
| 171 >-1</SPAN | |
| 172 > on failure.</P | |
| 173 ></DIV | |
| 174 ><DIV | |
| 175 CLASS="NAVFOOTER" | |
| 176 ><HR | |
| 177 ALIGN="LEFT" | |
| 178 WIDTH="100%"><TABLE | |
|
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179 SUMMARY="Footer navigation table" |
| 0 | 180 WIDTH="100%" |
| 181 BORDER="0" | |
| 182 CELLPADDING="0" | |
| 183 CELLSPACING="0" | |
| 184 ><TR | |
| 185 ><TD | |
| 186 WIDTH="33%" | |
| 187 ALIGN="left" | |
| 188 VALIGN="top" | |
| 189 ><A | |
| 190 HREF="sdlenableunicode.html" | |
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parents:
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191 ACCESSKEY="P" |
| 0 | 192 >Prev</A |
| 193 ></TD | |
| 194 ><TD | |
| 195 WIDTH="34%" | |
| 196 ALIGN="center" | |
| 197 VALIGN="top" | |
| 198 ><A | |
| 199 HREF="index.html" | |
|
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parents:
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200 ACCESSKEY="H" |
| 0 | 201 >Home</A |
| 202 ></TD | |
| 203 ><TD | |
| 204 WIDTH="33%" | |
| 205 ALIGN="right" | |
| 206 VALIGN="top" | |
| 207 ><A | |
| 208 HREF="sdlgetmousestate.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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209 ACCESSKEY="N" |
| 0 | 210 >Next</A |
| 211 ></TD | |
| 212 ></TR | |
| 213 ><TR | |
| 214 ><TD | |
| 215 WIDTH="33%" | |
| 216 ALIGN="left" | |
| 217 VALIGN="top" | |
| 218 >SDL_EnableUNICODE</TD | |
| 219 ><TD | |
| 220 WIDTH="34%" | |
| 221 ALIGN="center" | |
| 222 VALIGN="top" | |
| 223 ><A | |
| 224 HREF="eventfunctions.html" | |
|
803
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parents:
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225 ACCESSKEY="U" |
| 0 | 226 >Up</A |
| 227 ></TD | |
| 228 ><TD | |
| 229 WIDTH="33%" | |
| 230 ALIGN="right" | |
| 231 VALIGN="top" | |
| 232 >SDL_GetMouseState</TD | |
| 233 ></TR | |
| 234 ></TABLE | |
| 235 ></DIV | |
| 236 ></BODY | |
| 237 ></HTML | |
| 238 > |