Mercurial > sdl-ios-xcode
annotate docs/html/sdlfreecursor.html @ 3880:74e828c64315 SDL-1.2
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 15:45:37 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_FreeCursor</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_CreateCursor" | |
| 17 HREF="sdlcreatecursor.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_SetCursor" | |
| 20 HREF="sdlsetcursor.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="sdlcreatecursor.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="sdlsetcursor.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="SDLFREECURSOR" | |
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74 ></A |
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75 >SDL_FreeCursor</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN2540" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_FreeCursor -- Frees a cursor created with SDL_CreateCursor.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN2543" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN2544" |
| 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_FreeCursor</B | |
| 108 ></CODE | |
| 109 >(SDL_Cursor *cursor);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN2550" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Frees a <SPAN | |
| 124 CLASS="STRUCTNAME" | |
| 125 >SDL_Cursor</SPAN | |
| 126 > that was created using | |
| 127 <A | |
| 128 HREF="sdlcreatecursor.html" | |
| 129 >SDL_CreateCursor</A | |
| 130 >.</P | |
| 131 ></DIV | |
| 132 ><DIV | |
| 133 CLASS="REFSECT1" | |
| 134 ><A | |
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135 NAME="AEN2555" |
| 0 | 136 ></A |
| 137 ><H2 | |
| 138 >See Also</H2 | |
| 139 ><P | |
| 140 ><A | |
| 141 HREF="sdlcreatecursor.html" | |
| 142 >SDL_CreateCursor</A | |
| 143 ></P | |
| 144 ></DIV | |
| 145 ><DIV | |
| 146 CLASS="NAVFOOTER" | |
| 147 ><HR | |
| 148 ALIGN="LEFT" | |
| 149 WIDTH="100%"><TABLE | |
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150 SUMMARY="Footer navigation table" |
| 0 | 151 WIDTH="100%" |
| 152 BORDER="0" | |
| 153 CELLPADDING="0" | |
| 154 CELLSPACING="0" | |
| 155 ><TR | |
| 156 ><TD | |
| 157 WIDTH="33%" | |
| 158 ALIGN="left" | |
| 159 VALIGN="top" | |
| 160 ><A | |
| 161 HREF="sdlcreatecursor.html" | |
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162 ACCESSKEY="P" |
| 0 | 163 >Prev</A |
| 164 ></TD | |
| 165 ><TD | |
| 166 WIDTH="34%" | |
| 167 ALIGN="center" | |
| 168 VALIGN="top" | |
| 169 ><A | |
| 170 HREF="index.html" | |
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355632dca928
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parents:
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171 ACCESSKEY="H" |
| 0 | 172 >Home</A |
| 173 ></TD | |
| 174 ><TD | |
| 175 WIDTH="33%" | |
| 176 ALIGN="right" | |
| 177 VALIGN="top" | |
| 178 ><A | |
| 179 HREF="sdlsetcursor.html" | |
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parents:
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changeset
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180 ACCESSKEY="N" |
| 0 | 181 >Next</A |
| 182 ></TD | |
| 183 ></TR | |
| 184 ><TR | |
| 185 ><TD | |
| 186 WIDTH="33%" | |
| 187 ALIGN="left" | |
| 188 VALIGN="top" | |
| 189 >SDL_CreateCursor</TD | |
| 190 ><TD | |
| 191 WIDTH="34%" | |
| 192 ALIGN="center" | |
| 193 VALIGN="top" | |
| 194 ><A | |
| 195 HREF="video.html" | |
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355632dca928
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parents:
181
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changeset
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196 ACCESSKEY="U" |
| 0 | 197 >Up</A |
| 198 ></TD | |
| 199 ><TD | |
| 200 WIDTH="33%" | |
| 201 ALIGN="right" | |
| 202 VALIGN="top" | |
| 203 >SDL_SetCursor</TD | |
| 204 ></TR | |
| 205 ></TABLE | |
| 206 ></DIV | |
| 207 ></BODY | |
| 208 ></HTML | |
| 209 > |