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annotate docs/html/sdldestroysemaphore.html @ 3097:0d12e8f1de3c
Date: Thu, 05 Feb 2009 18:07:35 +0100
From: Stefan Klug
Subject: [SDL] SDL 1.3 WinCE backend
as promised, I've started to work on the WinCE backend of SDL 1.3
I've modified the win32 video backend and the gdi renderer, to work
properly in WinCE.
The results till now are great, but there is still some work to do.
Attached are two patches with my changes.
I would be happy if someone could review and propably commit them.
The first one (configure.in.patch) should be straight forward without
any side effects.
The second one does the necessary changes to the win32 backend. I was
really unhappy to start slicing this shiny new backend with
#ifdef/#endif but I saw no other option.
The most problematic issues are:
- WinCe has no GetDIBits, so its practically impossible to fill a
BITMAPINFO with correct values. I therefore removed the bmi member from
the GDI_RenderData in SDL_gdirender.c to prevent usage of a not or not
properly initialized bmi.
- In SDL_win32window.c I exchanged some ASCII function by their general
counterparts, (In CE only the Unicode versions are available). I don't
know if this has a negative effect when running in win32
Cheers
Stefan
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 23 Mar 2009 05:35:21 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_DestroySemaphore</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_CreateSemaphore" | |
17 HREF="sdlcreatesemaphore.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_SemWait" | |
20 HREF="sdlsemwait.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="sdlcreatesemaphore.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="sdlsemwait.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="SDLDESTROYSEMAPHORE" | |
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74 ></A |
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75 >SDL_DestroySemaphore</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN7982" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_DestroySemaphore -- Destroys a semaphore that was created by <A | |
84 HREF="sdlcreatesemaphore.html" | |
85 >SDL_CreateSemaphore</A | |
86 >.</DIV | |
87 ><DIV | |
88 CLASS="REFSYNOPSISDIV" | |
89 ><A | |
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90 NAME="AEN7986" |
0 | 91 ></A |
92 ><H2 | |
93 >Synopsis</H2 | |
94 ><DIV | |
95 CLASS="FUNCSYNOPSIS" | |
96 ><A | |
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97 NAME="AEN7987" |
0 | 98 ></A |
99 ><P | |
100 ></P | |
101 ><PRE | |
102 CLASS="FUNCSYNOPSISINFO" | |
103 >#include "SDL.h" | |
104 #include "SDL_thread.h"</PRE | |
105 ><P | |
106 ><CODE | |
107 ><CODE | |
108 CLASS="FUNCDEF" | |
109 >void <B | |
110 CLASS="FSFUNC" | |
111 >SDL_DestroySemaphore</B | |
112 ></CODE | |
113 >(SDL_sem *sem);</CODE | |
114 ></P | |
115 ><P | |
116 ></P | |
117 ></DIV | |
118 ></DIV | |
119 ><DIV | |
120 CLASS="REFSECT1" | |
121 ><A | |
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122 NAME="AEN7993" |
0 | 123 ></A |
124 ><H2 | |
125 >Description</H2 | |
126 ><P | |
127 ><TT | |
128 CLASS="FUNCTION" | |
129 >SDL_DestroySemaphore</TT | |
130 > destroys the semaphore pointed to | |
131 by <TT | |
132 CLASS="PARAMETER" | |
133 ><I | |
134 >sem</I | |
135 ></TT | |
136 > that was created by | |
137 <A | |
138 HREF="sdlcreatesemaphore.html" | |
139 ><TT | |
140 CLASS="FUNCTION" | |
141 >SDL_CreateSemaphore</TT | |
142 ></A | |
143 >. | |
144 It is not safe to destroy a semaphore if there are threads currently blocked | |
145 waiting on it.</P | |
146 ></DIV | |
147 ><DIV | |
148 CLASS="REFSECT1" | |
149 ><A | |
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150 NAME="AEN8000" |
0 | 151 ></A |
152 ><H2 | |
153 >Examples</H2 | |
154 ><P | |
155 ><PRE | |
156 CLASS="PROGRAMLISTING" | |
157 >if (my_sem != NULL) { | |
158 SDL_DestroySemaphore(my_sem); | |
159 my_sem = NULL; | |
160 }</PRE | |
161 ></P | |
162 ></DIV | |
163 ><DIV | |
164 CLASS="REFSECT1" | |
165 ><A | |
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166 NAME="AEN8004" |
0 | 167 ></A |
168 ><H2 | |
169 >See Also</H2 | |
170 ><P | |
171 ><A | |
172 HREF="sdlcreatesemaphore.html" | |
173 ><TT | |
174 CLASS="FUNCTION" | |
175 >SDL_CreateSemaphore</TT | |
176 ></A | |
177 >, | |
178 <A | |
179 HREF="sdlsemwait.html" | |
180 ><TT | |
181 CLASS="FUNCTION" | |
182 >SDL_SemWait</TT | |
183 ></A | |
184 >, | |
185 <A | |
186 HREF="sdlsemtrywait.html" | |
187 ><TT | |
188 CLASS="FUNCTION" | |
189 >SDL_SemTryWait</TT | |
190 ></A | |
191 >, | |
192 <A | |
193 HREF="sdlsemwaittimeout.html" | |
194 ><TT | |
195 CLASS="FUNCTION" | |
196 >SDL_SemWaitTimeout</TT | |
197 ></A | |
198 >, | |
199 <A | |
200 HREF="sdlsempost.html" | |
201 ><TT | |
202 CLASS="FUNCTION" | |
203 >SDL_SemPost</TT | |
204 ></A | |
205 >, | |
206 <A | |
207 HREF="sdlsemvalue.html" | |
208 ><TT | |
209 CLASS="FUNCTION" | |
210 >SDL_SemValue</TT | |
211 ></A | |
212 ></P | |
213 ></DIV | |
214 ><DIV | |
215 CLASS="NAVFOOTER" | |
216 ><HR | |
217 ALIGN="LEFT" | |
218 WIDTH="100%"><TABLE | |
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219 SUMMARY="Footer navigation table" |
0 | 220 WIDTH="100%" |
221 BORDER="0" | |
222 CELLPADDING="0" | |
223 CELLSPACING="0" | |
224 ><TR | |
225 ><TD | |
226 WIDTH="33%" | |
227 ALIGN="left" | |
228 VALIGN="top" | |
229 ><A | |
230 HREF="sdlcreatesemaphore.html" | |
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231 ACCESSKEY="P" |
0 | 232 >Prev</A |
233 ></TD | |
234 ><TD | |
235 WIDTH="34%" | |
236 ALIGN="center" | |
237 VALIGN="top" | |
238 ><A | |
239 HREF="index.html" | |
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240 ACCESSKEY="H" |
0 | 241 >Home</A |
242 ></TD | |
243 ><TD | |
244 WIDTH="33%" | |
245 ALIGN="right" | |
246 VALIGN="top" | |
247 ><A | |
248 HREF="sdlsemwait.html" | |
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249 ACCESSKEY="N" |
0 | 250 >Next</A |
251 ></TD | |
252 ></TR | |
253 ><TR | |
254 ><TD | |
255 WIDTH="33%" | |
256 ALIGN="left" | |
257 VALIGN="top" | |
258 >SDL_CreateSemaphore</TD | |
259 ><TD | |
260 WIDTH="34%" | |
261 ALIGN="center" | |
262 VALIGN="top" | |
263 ><A | |
264 HREF="thread.html" | |
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265 ACCESSKEY="U" |
0 | 266 >Up</A |
267 ></TD | |
268 ><TD | |
269 WIDTH="33%" | |
270 ALIGN="right" | |
271 VALIGN="top" | |
272 >SDL_SemWait</TD | |
273 ></TR | |
274 ></TABLE | |
275 ></DIV | |
276 ></BODY | |
277 ></HTML | |
278 > |