Mercurial > sdl-ios-xcode
annotate docs/html/sdlthreadid.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> |
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date | Sun, 24 Sep 2006 15:56:36 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_ThreadID</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="Multi-threaded Programming" | |
14 HREF="thread.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_CreateThread" | |
17 HREF="sdlcreatethread.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_GetThreadID" | |
20 HREF="sdlgetthreadid.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="sdlcreatethread.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="sdlgetthreadid.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="SDLTHREADID" | |
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74 ></A |
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75 >SDL_ThreadID</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN7726" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_ThreadID -- Get the 32-bit thread identifier for the current thread.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN7729" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN7730" |
0 | 95 ></A |
96 ><P | |
97 ></P | |
98 ><PRE | |
99 CLASS="FUNCSYNOPSISINFO" | |
100 >#include "SDL.h" | |
101 #include "SDL_thread.h"</PRE | |
102 ><P | |
103 ><CODE | |
104 ><CODE | |
105 CLASS="FUNCDEF" | |
106 >Uint32 <B | |
107 CLASS="FSFUNC" | |
108 >SDL_ThreadID</B | |
109 ></CODE | |
110 >(void);</CODE | |
111 ></P | |
112 ><P | |
113 ></P | |
114 ></DIV | |
115 ></DIV | |
116 ><DIV | |
117 CLASS="REFSECT1" | |
118 ><A | |
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119 NAME="AEN7736" |
0 | 120 ></A |
121 ><H2 | |
122 >Description</H2 | |
123 ><P | |
124 >Get the 32-bit thread identifier for the current thread.</P | |
125 ></DIV | |
126 ><DIV | |
127 CLASS="NAVFOOTER" | |
128 ><HR | |
129 ALIGN="LEFT" | |
130 WIDTH="100%"><TABLE | |
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131 SUMMARY="Footer navigation table" |
0 | 132 WIDTH="100%" |
133 BORDER="0" | |
134 CELLPADDING="0" | |
135 CELLSPACING="0" | |
136 ><TR | |
137 ><TD | |
138 WIDTH="33%" | |
139 ALIGN="left" | |
140 VALIGN="top" | |
141 ><A | |
142 HREF="sdlcreatethread.html" | |
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143 ACCESSKEY="P" |
0 | 144 >Prev</A |
145 ></TD | |
146 ><TD | |
147 WIDTH="34%" | |
148 ALIGN="center" | |
149 VALIGN="top" | |
150 ><A | |
151 HREF="index.html" | |
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152 ACCESSKEY="H" |
0 | 153 >Home</A |
154 ></TD | |
155 ><TD | |
156 WIDTH="33%" | |
157 ALIGN="right" | |
158 VALIGN="top" | |
159 ><A | |
160 HREF="sdlgetthreadid.html" | |
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161 ACCESSKEY="N" |
0 | 162 >Next</A |
163 ></TD | |
164 ></TR | |
165 ><TR | |
166 ><TD | |
167 WIDTH="33%" | |
168 ALIGN="left" | |
169 VALIGN="top" | |
170 >SDL_CreateThread</TD | |
171 ><TD | |
172 WIDTH="34%" | |
173 ALIGN="center" | |
174 VALIGN="top" | |
175 ><A | |
176 HREF="thread.html" | |
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177 ACCESSKEY="U" |
0 | 178 >Up</A |
179 ></TD | |
180 ><TD | |
181 WIDTH="33%" | |
182 ALIGN="right" | |
183 VALIGN="top" | |
184 >SDL_GetThreadID</TD | |
185 ></TR | |
186 ></TABLE | |
187 ></DIV | |
188 ></BODY | |
189 ></HTML | |
190 > |