Mercurial > sdl-ios-xcode
annotate docs/html/sdlsemvalue.html @ 136:717f739d6ec1
Added hardware stretching code to scale 640x480 to TV resolution
There's a bug of some kind in the 16bpp code. ??
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 01 Aug 2001 08:41:45 +0000 |
| parents | 55f1f1b3e27d |
| children | e5bc29de3f0a |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_SemValue</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
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55f1f1b3e27d
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
| 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_SemPost" | |
| 17 HREF="sdlsempost.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CreateCond" | |
| 20 HREF="sdlcreatecond.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 | |
| 31 WIDTH="100%" | |
| 32 BORDER="0" | |
| 33 CELLPADDING="0" | |
| 34 CELLSPACING="0" | |
| 35 ><TR | |
| 36 ><TH | |
| 37 COLSPAN="3" | |
| 38 ALIGN="center" | |
| 39 >SDL Library Documentation</TH | |
| 40 ></TR | |
| 41 ><TR | |
| 42 ><TD | |
| 43 WIDTH="10%" | |
| 44 ALIGN="left" | |
| 45 VALIGN="bottom" | |
| 46 ><A | |
| 47 HREF="sdlsempost.html" | |
| 48 >Prev</A | |
| 49 ></TD | |
| 50 ><TD | |
| 51 WIDTH="80%" | |
| 52 ALIGN="center" | |
| 53 VALIGN="bottom" | |
| 54 ></TD | |
| 55 ><TD | |
| 56 WIDTH="10%" | |
| 57 ALIGN="right" | |
| 58 VALIGN="bottom" | |
| 59 ><A | |
| 60 HREF="sdlcreatecond.html" | |
| 61 >Next</A | |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><H1 | |
| 69 ><A | |
| 70 NAME="SDLSEMVALUE" | |
| 71 >SDL_SemValue</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
|
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55f1f1b3e27d
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parents:
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diff
changeset
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76 NAME="AEN7669" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_SemValue -- Return the current value of a semaphore.</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
|
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parents:
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diff
changeset
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84 NAME="AEN7672" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
|
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55f1f1b3e27d
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parents:
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diff
changeset
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91 NAME="AEN7673" |
| 0 | 92 ></A |
| 93 ><P | |
| 94 ></P | |
| 95 ><PRE | |
| 96 CLASS="FUNCSYNOPSISINFO" | |
| 97 >#include "SDL.h" | |
| 98 #include "SDL/SDL_thread.h"</PRE | |
| 99 ><P | |
| 100 ><CODE | |
| 101 ><CODE | |
| 102 CLASS="FUNCDEF" | |
| 103 >Uint32 <B | |
| 104 CLASS="FSFUNC" | |
| 105 >SDL_SemValue</B | |
| 106 ></CODE | |
| 107 >(SDL_sem *sem);</CODE | |
| 108 ></P | |
| 109 ><P | |
| 110 ></P | |
| 111 ></DIV | |
| 112 ></DIV | |
| 113 ><DIV | |
| 114 CLASS="REFSECT1" | |
| 115 ><A | |
|
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parents:
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diff
changeset
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116 NAME="AEN7679" |
| 0 | 117 ></A |
| 118 ><H2 | |
| 119 >Description</H2 | |
| 120 ><P | |
| 121 ><TT | |
| 122 CLASS="FUNCTION" | |
| 123 >SDL_SemValue()</TT | |
| 124 > returns the current semaphore value from | |
| 125 the semaphore pointed to by <TT | |
| 126 CLASS="PARAMETER" | |
| 127 ><I | |
| 128 >sem</I | |
| 129 ></TT | |
| 130 >.</P | |
| 131 ></DIV | |
| 132 ><DIV | |
| 133 CLASS="REFSECT1" | |
| 134 ><A | |
|
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55f1f1b3e27d
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Sam Lantinga <slouken@lokigames.com>
parents:
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diff
changeset
|
135 NAME="AEN7684" |
| 0 | 136 ></A |
| 137 ><H2 | |
| 138 >Return Value</H2 | |
| 139 ><P | |
| 140 >Returns current value of the semaphore.</P | |
| 141 ></DIV | |
| 142 ><DIV | |
| 143 CLASS="REFSECT1" | |
| 144 ><A | |
|
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55f1f1b3e27d
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Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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145 NAME="AEN7687" |
| 0 | 146 ></A |
| 147 ><H2 | |
| 148 >Examples</H2 | |
| 149 ><P | |
| 150 ><PRE | |
| 151 CLASS="PROGRAMLISTING" | |
| 152 > sem_value = SDL_SemValue(my_sem);</PRE | |
| 153 ></P | |
| 154 ></DIV | |
| 155 ><DIV | |
| 156 CLASS="REFSECT1" | |
| 157 ><A | |
|
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55f1f1b3e27d
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Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
158 NAME="AEN7691" |
| 0 | 159 ></A |
| 160 ><H2 | |
| 161 >See Also</H2 | |
| 162 ><P | |
| 163 ><A | |
| 164 HREF="sdlcreatesemaphore.html" | |
| 165 ><TT | |
| 166 CLASS="FUNCTION" | |
| 167 >SDL_CreateSemaphore</TT | |
| 168 ></A | |
| 169 >, | |
| 170 <A | |
| 171 HREF="sdldestroysemaphore.html" | |
| 172 ><TT | |
| 173 CLASS="FUNCTION" | |
| 174 >SDL_DestroySemaphore</TT | |
| 175 ></A | |
| 176 >, | |
| 177 <A | |
| 178 HREF="sdlsemwait.html" | |
| 179 ><TT | |
| 180 CLASS="FUNCTION" | |
| 181 >SDL_SemWait</TT | |
| 182 ></A | |
| 183 >, | |
| 184 <A | |
| 185 HREF="sdlsemtrywait.html" | |
| 186 ><TT | |
| 187 CLASS="FUNCTION" | |
| 188 >SDL_SemTryWait</TT | |
| 189 ></A | |
| 190 >, | |
| 191 <A | |
| 192 HREF="sdlsemwaittimeout.html" | |
| 193 ><TT | |
| 194 CLASS="FUNCTION" | |
| 195 >SDL_SemWaitTimeout</TT | |
| 196 ></A | |
| 197 >, | |
| 198 <A | |
| 199 HREF="sdlsempost.html" | |
| 200 ><TT | |
| 201 CLASS="FUNCTION" | |
| 202 >SDL_SemPost</TT | |
| 203 ></A | |
| 204 ></P | |
| 205 ></DIV | |
| 206 ><DIV | |
| 207 CLASS="NAVFOOTER" | |
| 208 ><HR | |
| 209 ALIGN="LEFT" | |
| 210 WIDTH="100%"><TABLE | |
| 211 WIDTH="100%" | |
| 212 BORDER="0" | |
| 213 CELLPADDING="0" | |
| 214 CELLSPACING="0" | |
| 215 ><TR | |
| 216 ><TD | |
| 217 WIDTH="33%" | |
| 218 ALIGN="left" | |
| 219 VALIGN="top" | |
| 220 ><A | |
| 221 HREF="sdlsempost.html" | |
| 222 >Prev</A | |
| 223 ></TD | |
| 224 ><TD | |
| 225 WIDTH="34%" | |
| 226 ALIGN="center" | |
| 227 VALIGN="top" | |
| 228 ><A | |
| 229 HREF="index.html" | |
| 230 >Home</A | |
| 231 ></TD | |
| 232 ><TD | |
| 233 WIDTH="33%" | |
| 234 ALIGN="right" | |
| 235 VALIGN="top" | |
| 236 ><A | |
| 237 HREF="sdlcreatecond.html" | |
| 238 >Next</A | |
| 239 ></TD | |
| 240 ></TR | |
| 241 ><TR | |
| 242 ><TD | |
| 243 WIDTH="33%" | |
| 244 ALIGN="left" | |
| 245 VALIGN="top" | |
| 246 >SDL_SemPost</TD | |
| 247 ><TD | |
| 248 WIDTH="34%" | |
| 249 ALIGN="center" | |
| 250 VALIGN="top" | |
| 251 ><A | |
| 252 HREF="thread.html" | |
| 253 >Up</A | |
| 254 ></TD | |
| 255 ><TD | |
| 256 WIDTH="33%" | |
| 257 ALIGN="right" | |
| 258 VALIGN="top" | |
| 259 >SDL_CreateCond</TD | |
| 260 ></TR | |
| 261 ></TABLE | |
| 262 ></DIV | |
| 263 ></BODY | |
| 264 ></HTML | |
| 265 > |