Mercurial > sdl-ios-xcode
annotate docs/html/sdldestroymutex.html @ 1012:f14e3059e138
Date: Mon, 13 Dec 2004 21:28:18 -0500
From: Jonathan Atkins
Subject: [SDL] SDL_SaveBMP width bugfix
this fixes the pitch versus width difference that can happen
(especially for 8bit and 24bit (with the exact RGBAmasks) surfaces)
when you use SDL_SaveBMP. The problem was the pitch was used
instead of the width, which in some cases is much wider than the
screen area you really want to save...making for ugly crud on the
saved image borders.
This code has been tested with & without pitch overhangs...and
with the right masks for 24 bit surfaces.
I tested 8,15,16,24,32-0RGB,32-RGBA(with no SDL_SRCALPHA flag).
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 14 Dec 2004 06:20:49 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_DestroyMutex</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_CreateMutex" | |
17 HREF="sdlcreatemutex.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_mutexP" | |
20 HREF="sdlmutexp.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="sdlcreatemutex.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="sdlmutexp.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="SDLDESTROYMUTEX" | |
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74 ></A |
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75 >SDL_DestroyMutex</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN7849" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_DestroyMutex -- Destroy a mutex</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN7852" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN7853" |
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 >void <B | |
107 CLASS="FSFUNC" | |
108 >SDL_DestroyMutex</B | |
109 ></CODE | |
110 >(SDL_mutex *mutex);</CODE | |
111 ></P | |
112 ><P | |
113 ></P | |
114 ></DIV | |
115 ></DIV | |
116 ><DIV | |
117 CLASS="REFSECT1" | |
118 ><A | |
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119 NAME="AEN7859" |
0 | 120 ></A |
121 ><H2 | |
122 >Description</H2 | |
123 ><P | |
124 >Destroy a previously <A | |
125 HREF="sdlcreatemutex.html" | |
126 >created</A | |
127 > mutex.</P | |
128 ></DIV | |
129 ><DIV | |
130 CLASS="REFSECT1" | |
131 ><A | |
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132 NAME="AEN7863" |
0 | 133 ></A |
134 ><H2 | |
135 >See Also</H2 | |
136 ><P | |
137 ><A | |
138 HREF="sdlcreatemutex.html" | |
139 ><TT | |
140 CLASS="FUNCTION" | |
141 >SDL_CreateMutex</TT | |
142 ></A | |
143 ></P | |
144 ></DIV | |
145 ><DIV | |
146 CLASS="NAVFOOTER" | |
147 ><HR | |
148 ALIGN="LEFT" | |
149 WIDTH="100%"><TABLE | |
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150 SUMMARY="Footer navigation table" |
0 | 151 WIDTH="100%" |
152 BORDER="0" | |
153 CELLPADDING="0" | |
154 CELLSPACING="0" | |
155 ><TR | |
156 ><TD | |
157 WIDTH="33%" | |
158 ALIGN="left" | |
159 VALIGN="top" | |
160 ><A | |
161 HREF="sdlcreatemutex.html" | |
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162 ACCESSKEY="P" |
0 | 163 >Prev</A |
164 ></TD | |
165 ><TD | |
166 WIDTH="34%" | |
167 ALIGN="center" | |
168 VALIGN="top" | |
169 ><A | |
170 HREF="index.html" | |
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171 ACCESSKEY="H" |
0 | 172 >Home</A |
173 ></TD | |
174 ><TD | |
175 WIDTH="33%" | |
176 ALIGN="right" | |
177 VALIGN="top" | |
178 ><A | |
179 HREF="sdlmutexp.html" | |
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180 ACCESSKEY="N" |
0 | 181 >Next</A |
182 ></TD | |
183 ></TR | |
184 ><TR | |
185 ><TD | |
186 WIDTH="33%" | |
187 ALIGN="left" | |
188 VALIGN="top" | |
189 >SDL_CreateMutex</TD | |
190 ><TD | |
191 WIDTH="34%" | |
192 ALIGN="center" | |
193 VALIGN="top" | |
194 ><A | |
195 HREF="thread.html" | |
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196 ACCESSKEY="U" |
0 | 197 >Up</A |
198 ></TD | |
199 ><TD | |
200 WIDTH="33%" | |
201 ALIGN="right" | |
202 VALIGN="top" | |
203 >SDL_mutexP</TD | |
204 ></TR | |
205 ></TABLE | |
206 ></DIV | |
207 ></BODY | |
208 ></HTML | |
209 > |