Mercurial > sdl-ios-xcode
annotate docs/html/sdlsyswmevent.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> |
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date | Sun, 04 Oct 2009 04:03:37 +0000 |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_SysWMEvent</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="SDL Event Structures." | |
14 HREF="eventstructures.html"><LINK | |
15 REL="PREVIOUS" | |
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16 TITLE="SDL_ExposeEvent" |
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17 HREF="sdlexposeevent.html"><LINK |
0 | 18 REL="NEXT" |
19 TITLE="SDL_UserEvent" | |
20 HREF="sdluserevent.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 | |
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48 HREF="sdlexposeevent.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="sdluserevent.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="SDLSYSWMEVENT" | |
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74 ></A |
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75 >SDL_SysWMEvent</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN4538" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_SysWMEvent -- Platform-dependent window manager event.</DIV | |
84 ><DIV | |
85 CLASS="REFSECT1" | |
86 ><A | |
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87 NAME="AEN4541" |
0 | 88 ></A |
89 ><H2 | |
90 >Description</H2 | |
91 ><P | |
92 >The system window manager event contains a pointer to system-specific | |
93 information about unknown window manager events. If you enable this event | |
94 using | |
95 <A | |
96 HREF="sdleventstate.html" | |
97 ><TT | |
98 CLASS="FUNCTION" | |
99 >SDL_EventState()</TT | |
100 ></A | |
101 >, | |
102 it will be generated whenever unhandled events are received from the window | |
103 manager. This can be used, for example, to implement cut-and-paste in your | |
104 application. | |
105 | |
106 <PRE | |
107 CLASS="PROGRAMLISTING" | |
108 >typedef struct { | |
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109 Uint8 type; /* Always SDL_SYSWMEVENT */ |
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110 SDL_SysWMmsg *msg; |
0 | 111 } SDL_SysWMEvent;</PRE |
112 > | |
113 | |
114 If you want to obtain system-specific information about the window manager, | |
115 you can fill the version member of a <SPAN | |
116 CLASS="STRUCTNAME" | |
117 >SDL_SysWMinfo</SPAN | |
118 > | |
119 structure (details can be found in <TT | |
120 CLASS="FILENAME" | |
121 >SDL_syswm.h</TT | |
122 >, which must be included) using the <TT | |
123 CLASS="FUNCTION" | |
124 >SDL_VERSION()</TT | |
125 > macro found in | |
126 <TT | |
127 CLASS="FILENAME" | |
128 >SDL_version.h</TT | |
129 >, and pass it to the | |
130 function: | |
131 <DIV | |
132 CLASS="FUNCSYNOPSIS" | |
133 ><A | |
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134 NAME="AEN4551" |
0 | 135 ></A |
136 ><P | |
137 ></P | |
138 ><P | |
139 ><CODE | |
140 ><CODE | |
141 CLASS="FUNCDEF" | |
142 >int <B | |
143 CLASS="FSFUNC" | |
144 >SDL_GetWMInfo</B | |
145 ></CODE | |
146 >(SDL_SysWMinfo *info);</CODE | |
147 ></P | |
148 ><P | |
149 ></P | |
150 ></DIV | |
151 ></P | |
152 ></DIV | |
153 ><DIV | |
154 CLASS="REFSECT1" | |
155 ><A | |
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156 NAME="AEN4556" |
0 | 157 ></A |
158 ><H2 | |
159 >See Also</H2 | |
160 ><P | |
161 ><A | |
162 HREF="sdleventstate.html" | |
163 ><TT | |
164 CLASS="FUNCTION" | |
165 >SDL_EventState</TT | |
166 ></A | |
167 ></P | |
168 ></DIV | |
169 ><DIV | |
170 CLASS="NAVFOOTER" | |
171 ><HR | |
172 ALIGN="LEFT" | |
173 WIDTH="100%"><TABLE | |
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174 SUMMARY="Footer navigation table" |
0 | 175 WIDTH="100%" |
176 BORDER="0" | |
177 CELLPADDING="0" | |
178 CELLSPACING="0" | |
179 ><TR | |
180 ><TD | |
181 WIDTH="33%" | |
182 ALIGN="left" | |
183 VALIGN="top" | |
184 ><A | |
181
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185 HREF="sdlexposeevent.html" |
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186 ACCESSKEY="P" |
0 | 187 >Prev</A |
188 ></TD | |
189 ><TD | |
190 WIDTH="34%" | |
191 ALIGN="center" | |
192 VALIGN="top" | |
193 ><A | |
194 HREF="index.html" | |
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195 ACCESSKEY="H" |
0 | 196 >Home</A |
197 ></TD | |
198 ><TD | |
199 WIDTH="33%" | |
200 ALIGN="right" | |
201 VALIGN="top" | |
202 ><A | |
203 HREF="sdluserevent.html" | |
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204 ACCESSKEY="N" |
0 | 205 >Next</A |
206 ></TD | |
207 ></TR | |
208 ><TR | |
209 ><TD | |
210 WIDTH="33%" | |
211 ALIGN="left" | |
212 VALIGN="top" | |
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213 >SDL_ExposeEvent</TD |
0 | 214 ><TD |
215 WIDTH="34%" | |
216 ALIGN="center" | |
217 VALIGN="top" | |
218 ><A | |
219 HREF="eventstructures.html" | |
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220 ACCESSKEY="U" |
0 | 221 >Up</A |
222 ></TD | |
223 ><TD | |
224 WIDTH="33%" | |
225 ALIGN="right" | |
226 VALIGN="top" | |
227 >SDL_UserEvent</TD | |
228 ></TR | |
229 ></TABLE | |
230 ></DIV | |
231 ></BODY | |
232 ></HTML | |
233 > |