Mercurial > sdl-ios-xcode
annotate docs/html/sdlcondsignal.html @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 08 Jan 2006 21:18:15 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CondSignal</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_DestroyCond" | |
| 17 HREF="sdldestroycond.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CondBroadcast" | |
| 20 HREF="sdlcondbroadcast.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="sdldestroycond.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="sdlcondbroadcast.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="SDLCONDSIGNAL" | |
|
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74 ></A |
|
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75 >SDL_CondSignal</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN8310" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CondSignal -- Restart a thread wait on a condition variable</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN8313" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN8314" |
| 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 >int <B | |
| 107 CLASS="FSFUNC" | |
| 108 >SDL_CondSignal</B | |
| 109 ></CODE | |
| 110 >(SDL_cond *cond);</CODE | |
| 111 ></P | |
| 112 ><P | |
| 113 ></P | |
| 114 ></DIV | |
| 115 ></DIV | |
| 116 ><DIV | |
| 117 CLASS="REFSECT1" | |
| 118 ><A | |
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119 NAME="AEN8320" |
| 0 | 120 ></A |
| 121 ><H2 | |
| 122 >Description</H2 | |
| 123 ><P | |
| 124 >Restart one of the threads that are waiting on the condition variable, <TT | |
| 125 CLASS="PARAMETER" | |
| 126 ><I | |
| 127 >cond</I | |
| 128 ></TT | |
| 129 >. Returns <SPAN | |
| 130 CLASS="RETURNVALUE" | |
| 131 >0</SPAN | |
| 132 > on success of <SPAN | |
| 133 CLASS="RETURNVALUE" | |
| 134 >-1</SPAN | |
| 135 > on an error.</P | |
| 136 ></DIV | |
| 137 ><DIV | |
| 138 CLASS="REFSECT1" | |
| 139 ><A | |
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140 NAME="AEN8326" |
| 0 | 141 ></A |
| 142 ><H2 | |
| 143 >See Also</H2 | |
| 144 ><P | |
| 145 ><A | |
| 146 HREF="sdlcondwait.html" | |
| 147 ><TT | |
| 148 CLASS="FUNCTION" | |
| 149 >SDL_CondWait</TT | |
| 150 ></A | |
| 151 >, | |
| 152 <A | |
| 153 HREF="sdlcondbroadcast.html" | |
| 154 ><TT | |
| 155 CLASS="FUNCTION" | |
| 156 >SDL_CondBroadcast</TT | |
| 157 ></A | |
| 158 ></P | |
| 159 ></DIV | |
| 160 ><DIV | |
| 161 CLASS="NAVFOOTER" | |
| 162 ><HR | |
| 163 ALIGN="LEFT" | |
| 164 WIDTH="100%"><TABLE | |
|
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165 SUMMARY="Footer navigation table" |
| 0 | 166 WIDTH="100%" |
| 167 BORDER="0" | |
| 168 CELLPADDING="0" | |
| 169 CELLSPACING="0" | |
| 170 ><TR | |
| 171 ><TD | |
| 172 WIDTH="33%" | |
| 173 ALIGN="left" | |
| 174 VALIGN="top" | |
| 175 ><A | |
| 176 HREF="sdldestroycond.html" | |
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parents:
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177 ACCESSKEY="P" |
| 0 | 178 >Prev</A |
| 179 ></TD | |
| 180 ><TD | |
| 181 WIDTH="34%" | |
| 182 ALIGN="center" | |
| 183 VALIGN="top" | |
| 184 ><A | |
| 185 HREF="index.html" | |
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parents:
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186 ACCESSKEY="H" |
| 0 | 187 >Home</A |
| 188 ></TD | |
| 189 ><TD | |
| 190 WIDTH="33%" | |
| 191 ALIGN="right" | |
| 192 VALIGN="top" | |
| 193 ><A | |
| 194 HREF="sdlcondbroadcast.html" | |
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355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
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195 ACCESSKEY="N" |
| 0 | 196 >Next</A |
| 197 ></TD | |
| 198 ></TR | |
| 199 ><TR | |
| 200 ><TD | |
| 201 WIDTH="33%" | |
| 202 ALIGN="left" | |
| 203 VALIGN="top" | |
| 204 >SDL_DestroyCond</TD | |
| 205 ><TD | |
| 206 WIDTH="34%" | |
| 207 ALIGN="center" | |
| 208 VALIGN="top" | |
| 209 ><A | |
| 210 HREF="thread.html" | |
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355632dca928
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parents:
181
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211 ACCESSKEY="U" |
| 0 | 212 >Up</A |
| 213 ></TD | |
| 214 ><TD | |
| 215 WIDTH="33%" | |
| 216 ALIGN="right" | |
| 217 VALIGN="top" | |
| 218 >SDL_CondBroadcast</TD | |
| 219 ></TR | |
| 220 ></TABLE | |
| 221 ></DIV | |
| 222 ></BODY | |
| 223 ></HTML | |
| 224 > |