Mercurial > sdl-ios-xcode
annotate docs/html/sdlgetappstate.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 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_GetAppState</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="Event Functions." | |
14 HREF="eventfunctions.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_GetRelativeMouseState" | |
17 HREF="sdlgetrelativemousestate.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_JoystickEventState" | |
20 HREF="sdljoystickeventstate.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="sdlgetrelativemousestate.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="sdljoystickeventstate.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="SDLGETAPPSTATE" | |
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74 ></A |
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75 >SDL_GetAppState</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN5931" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 ><TT | |
84 CLASS="FUNCTION" | |
85 >SDL_GetAppState</TT | |
86 > -- Get the state of the application</DIV | |
87 ><DIV | |
88 CLASS="REFSYNOPSISDIV" | |
89 ><A | |
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90 NAME="AEN5935" |
0 | 91 ></A |
92 ><H2 | |
93 >Synopsis</H2 | |
94 ><DIV | |
95 CLASS="FUNCSYNOPSIS" | |
96 ><A | |
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97 NAME="AEN5936" |
0 | 98 ></A |
99 ><P | |
100 ></P | |
101 ><PRE | |
102 CLASS="FUNCSYNOPSISINFO" | |
103 >#include "SDL.h"</PRE | |
104 ><P | |
105 ><CODE | |
106 ><CODE | |
107 CLASS="FUNCDEF" | |
108 >Uint8 <B | |
109 CLASS="FSFUNC" | |
110 >SDL_GetAppState</B | |
111 ></CODE | |
112 >(void);</CODE | |
113 ></P | |
114 ><P | |
115 ></P | |
116 ></DIV | |
117 ></DIV | |
118 ><DIV | |
119 CLASS="REFSECT1" | |
120 ><A | |
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121 NAME="AEN5942" |
0 | 122 ></A |
123 ><H2 | |
124 >Description</H2 | |
125 ><P | |
126 >This function returns the current state of the application. The value returned is a bitwise combination of:</P | |
127 ><DIV | |
128 CLASS="INFORMALTABLE" | |
129 ><A | |
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130 NAME="AEN5945" |
0 | 131 ></A |
132 ><P | |
133 ></P | |
134 ><TABLE | |
135 BORDER="0" | |
136 CLASS="CALSTABLE" | |
137 ><TBODY | |
138 ><TR | |
139 ><TD | |
140 ALIGN="LEFT" | |
141 VALIGN="TOP" | |
142 ><TT | |
143 CLASS="LITERAL" | |
144 >SDL_APPMOUSEFOCUS</TT | |
145 ></TD | |
146 ><TD | |
147 ALIGN="LEFT" | |
148 VALIGN="TOP" | |
149 >The application has mouse focus.</TD | |
150 ></TR | |
151 ><TR | |
152 ><TD | |
153 ALIGN="LEFT" | |
154 VALIGN="TOP" | |
155 ><TT | |
156 CLASS="LITERAL" | |
157 >SDL_APPINPUTFOCUS</TT | |
158 ></TD | |
159 ><TD | |
160 ALIGN="LEFT" | |
161 VALIGN="TOP" | |
162 >The application has keyboard focus</TD | |
163 ></TR | |
164 ><TR | |
165 ><TD | |
166 ALIGN="LEFT" | |
167 VALIGN="TOP" | |
168 ><TT | |
169 CLASS="LITERAL" | |
170 >SDL_APPACTIVE</TT | |
171 ></TD | |
172 ><TD | |
173 ALIGN="LEFT" | |
174 VALIGN="TOP" | |
175 >The application is visible</TD | |
176 ></TR | |
177 ></TBODY | |
178 ></TABLE | |
179 ><P | |
180 ></P | |
181 ></DIV | |
182 ></DIV | |
183 ><DIV | |
184 CLASS="REFSECT1" | |
185 ><A | |
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186 NAME="AEN5960" |
0 | 187 ></A |
188 ><H2 | |
189 >See Also</H2 | |
190 ><P | |
191 ><A | |
192 HREF="sdlactiveevent.html" | |
193 ><SPAN | |
194 CLASS="STRUCTNAME" | |
195 >SDL_ActiveEvent</SPAN | |
196 ></A | |
197 ></P | |
198 ></DIV | |
199 ><DIV | |
200 CLASS="NAVFOOTER" | |
201 ><HR | |
202 ALIGN="LEFT" | |
203 WIDTH="100%"><TABLE | |
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204 SUMMARY="Footer navigation table" |
0 | 205 WIDTH="100%" |
206 BORDER="0" | |
207 CELLPADDING="0" | |
208 CELLSPACING="0" | |
209 ><TR | |
210 ><TD | |
211 WIDTH="33%" | |
212 ALIGN="left" | |
213 VALIGN="top" | |
214 ><A | |
215 HREF="sdlgetrelativemousestate.html" | |
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216 ACCESSKEY="P" |
0 | 217 >Prev</A |
218 ></TD | |
219 ><TD | |
220 WIDTH="34%" | |
221 ALIGN="center" | |
222 VALIGN="top" | |
223 ><A | |
224 HREF="index.html" | |
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225 ACCESSKEY="H" |
0 | 226 >Home</A |
227 ></TD | |
228 ><TD | |
229 WIDTH="33%" | |
230 ALIGN="right" | |
231 VALIGN="top" | |
232 ><A | |
233 HREF="sdljoystickeventstate.html" | |
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234 ACCESSKEY="N" |
0 | 235 >Next</A |
236 ></TD | |
237 ></TR | |
238 ><TR | |
239 ><TD | |
240 WIDTH="33%" | |
241 ALIGN="left" | |
242 VALIGN="top" | |
243 >SDL_GetRelativeMouseState</TD | |
244 ><TD | |
245 WIDTH="34%" | |
246 ALIGN="center" | |
247 VALIGN="top" | |
248 ><A | |
249 HREF="eventfunctions.html" | |
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250 ACCESSKEY="U" |
0 | 251 >Up</A |
252 ></TD | |
253 ><TD | |
254 WIDTH="33%" | |
255 ALIGN="right" | |
256 VALIGN="top" | |
257 >SDL_JoystickEventState</TD | |
258 ></TR | |
259 ></TABLE | |
260 ></DIV | |
261 ></BODY | |
262 ></HTML | |
263 > |