Mercurial > sdl-ios-xcode
annotate docs/html/sdlcreatecond.html @ 3335:b8d313de8a65
Adam Strzelecki to SDL
Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit.
Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes).
(1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs
(2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space
(3) Copy other planes for planar YUVs in UpdateTexture
(4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code
Waiting for comments,
--
Adam Strzelecki | nanoant.com
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 04 Oct 2009 04:03:37 +0000 |
parents | 355632dca928 |
children |
rev | line source |
---|---|
0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_CreateCond</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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_SemValue" | |
17 HREF="sdlsemvalue.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_DestroyCond" | |
20 HREF="sdldestroycond.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 | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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="sdlsemvalue.html" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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="sdldestroycond.html" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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="SDLCREATECOND" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
74 ></A |
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
75 >SDL_CreateCond</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
79 NAME="AEN8259" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_CreateCond -- Create a condition variable</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
87 NAME="AEN8262" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
94 NAME="AEN8263" |
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 >SDL_cond *<B | |
107 CLASS="FSFUNC" | |
108 >SDL_CreateCond</B | |
109 ></CODE | |
110 >(void);</CODE | |
111 ></P | |
112 ><P | |
113 ></P | |
114 ></DIV | |
115 ></DIV | |
116 ><DIV | |
117 CLASS="REFSECT1" | |
118 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
119 NAME="AEN8269" |
0 | 120 ></A |
121 ><H2 | |
122 >Description</H2 | |
123 ><P | |
124 >Creates a condition variable.</P | |
125 ></DIV | |
126 ><DIV | |
127 CLASS="REFSECT1" | |
128 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
129 NAME="AEN8272" |
0 | 130 ></A |
131 ><H2 | |
132 >Examples</H2 | |
133 ><PRE | |
134 CLASS="PROGRAMLISTING" | |
135 >SDL_cond *cond; | |
136 | |
137 cond=SDL_CreateCond(); | |
138 . | |
139 . | |
140 /* Do stuff */ | |
141 | |
142 . | |
143 . | |
144 SDL_DestroyCond(cond);</PRE | |
145 ></DIV | |
146 ><DIV | |
147 CLASS="REFSECT1" | |
148 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
149 NAME="AEN8275" |
0 | 150 ></A |
151 ><H2 | |
152 >See Also</H2 | |
153 ><P | |
154 ><A | |
155 HREF="sdldestroycond.html" | |
156 ><TT | |
157 CLASS="FUNCTION" | |
158 >SDL_DestroyCond</TT | |
159 ></A | |
160 >, | |
161 <A | |
162 HREF="sdlcondwait.html" | |
163 ><TT | |
164 CLASS="FUNCTION" | |
165 >SDL_CondWait</TT | |
166 ></A | |
167 >, | |
168 <A | |
169 HREF="sdlcondsignal.html" | |
170 ><TT | |
171 CLASS="FUNCTION" | |
172 >SDL_CondSignal</TT | |
173 ></A | |
174 ></P | |
175 ></DIV | |
176 ><DIV | |
177 CLASS="NAVFOOTER" | |
178 ><HR | |
179 ALIGN="LEFT" | |
180 WIDTH="100%"><TABLE | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
181 SUMMARY="Footer navigation table" |
0 | 182 WIDTH="100%" |
183 BORDER="0" | |
184 CELLPADDING="0" | |
185 CELLSPACING="0" | |
186 ><TR | |
187 ><TD | |
188 WIDTH="33%" | |
189 ALIGN="left" | |
190 VALIGN="top" | |
191 ><A | |
192 HREF="sdlsemvalue.html" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
193 ACCESSKEY="P" |
0 | 194 >Prev</A |
195 ></TD | |
196 ><TD | |
197 WIDTH="34%" | |
198 ALIGN="center" | |
199 VALIGN="top" | |
200 ><A | |
201 HREF="index.html" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
202 ACCESSKEY="H" |
0 | 203 >Home</A |
204 ></TD | |
205 ><TD | |
206 WIDTH="33%" | |
207 ALIGN="right" | |
208 VALIGN="top" | |
209 ><A | |
210 HREF="sdldestroycond.html" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
211 ACCESSKEY="N" |
0 | 212 >Next</A |
213 ></TD | |
214 ></TR | |
215 ><TR | |
216 ><TD | |
217 WIDTH="33%" | |
218 ALIGN="left" | |
219 VALIGN="top" | |
220 >SDL_SemValue</TD | |
221 ><TD | |
222 WIDTH="34%" | |
223 ALIGN="center" | |
224 VALIGN="top" | |
225 ><A | |
226 HREF="thread.html" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
227 ACCESSKEY="U" |
0 | 228 >Up</A |
229 ></TD | |
230 ><TD | |
231 WIDTH="33%" | |
232 ALIGN="right" | |
233 VALIGN="top" | |
234 >SDL_DestroyCond</TD | |
235 ></TR | |
236 ></TABLE | |
237 ></DIV | |
238 ></BODY | |
239 ></HTML | |
240 > |