Mercurial > sdl-ios-xcode
annotate docs/html/sdlgetcursor.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_GetCursor</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_SetCursor" | |
| 17 HREF="sdlsetcursor.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_ShowCursor" | |
| 20 HREF="sdlshowcursor.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="sdlsetcursor.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="sdlshowcursor.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="SDLGETCURSOR" | |
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74 ></A |
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75 >SDL_GetCursor</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN2589" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_GetCursor -- Get the currently active mouse cursor.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN2592" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN2593" |
| 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 >SDL_Cursor *<B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_GetCursor</B | |
| 108 ></CODE | |
| 109 >(void);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN2599" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Returns the currently active mouse cursor.</P | |
| 124 ></DIV | |
| 125 ><DIV | |
| 126 CLASS="REFSECT1" | |
| 127 ><A | |
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128 NAME="AEN2602" |
| 0 | 129 ></A |
| 130 ><H2 | |
| 131 >See Also</H2 | |
| 132 ><P | |
| 133 ><A | |
| 134 HREF="sdlsetcursor.html" | |
| 135 ><TT | |
| 136 CLASS="FUNCTION" | |
| 137 >SDL_SetCursor</TT | |
| 138 ></A | |
| 139 >, | |
| 140 <A | |
| 141 HREF="sdlcreatecursor.html" | |
| 142 ><TT | |
| 143 CLASS="FUNCTION" | |
| 144 >SDL_CreateCursor</TT | |
| 145 ></A | |
| 146 >, | |
| 147 <A | |
| 148 HREF="sdlshowcursor.html" | |
| 149 ><TT | |
| 150 CLASS="FUNCTION" | |
| 151 >SDL_ShowCursor</TT | |
| 152 ></A | |
| 153 ></P | |
| 154 ></DIV | |
| 155 ><DIV | |
| 156 CLASS="NAVFOOTER" | |
| 157 ><HR | |
| 158 ALIGN="LEFT" | |
| 159 WIDTH="100%"><TABLE | |
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parents:
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160 SUMMARY="Footer navigation table" |
| 0 | 161 WIDTH="100%" |
| 162 BORDER="0" | |
| 163 CELLPADDING="0" | |
| 164 CELLSPACING="0" | |
| 165 ><TR | |
| 166 ><TD | |
| 167 WIDTH="33%" | |
| 168 ALIGN="left" | |
| 169 VALIGN="top" | |
| 170 ><A | |
| 171 HREF="sdlsetcursor.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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172 ACCESSKEY="P" |
| 0 | 173 >Prev</A |
| 174 ></TD | |
| 175 ><TD | |
| 176 WIDTH="34%" | |
| 177 ALIGN="center" | |
| 178 VALIGN="top" | |
| 179 ><A | |
| 180 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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181 ACCESSKEY="H" |
| 0 | 182 >Home</A |
| 183 ></TD | |
| 184 ><TD | |
| 185 WIDTH="33%" | |
| 186 ALIGN="right" | |
| 187 VALIGN="top" | |
| 188 ><A | |
| 189 HREF="sdlshowcursor.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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190 ACCESSKEY="N" |
| 0 | 191 >Next</A |
| 192 ></TD | |
| 193 ></TR | |
| 194 ><TR | |
| 195 ><TD | |
| 196 WIDTH="33%" | |
| 197 ALIGN="left" | |
| 198 VALIGN="top" | |
| 199 >SDL_SetCursor</TD | |
| 200 ><TD | |
| 201 WIDTH="34%" | |
| 202 ALIGN="center" | |
| 203 VALIGN="top" | |
| 204 ><A | |
| 205 HREF="video.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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206 ACCESSKEY="U" |
| 0 | 207 >Up</A |
| 208 ></TD | |
| 209 ><TD | |
| 210 WIDTH="33%" | |
| 211 ALIGN="right" | |
| 212 VALIGN="top" | |
| 213 >SDL_ShowCursor</TD | |
| 214 ></TR | |
| 215 ></TABLE | |
| 216 ></DIV | |
| 217 ></BODY | |
| 218 ></HTML | |
| 219 > |