Mercurial > sdl-ios-xcode
annotate docs/html/sdlinitsubsystem.html @ 1585:980d2a0dc2a3
Date: Tue, 4 Mar 2003 15:05:31 -0800
From: "Jim"
Subject: [SDL] Frame Buffer patches...
Okay I'm new at patch generation - so please tell me if there's a better way
I could have done this.
Attached are two patch files generated with 'cvs diff -u'
SDL-fb-open-lock.patch applies to SDL_fbvideo.c
Modifies the open loop to check /dev/fb/0 found on devfs...
Modifies the lock code to return failure if the current virtual terminal
is not the one opened for frame buffer writing...
Lock would hang forever if switched away (ctrl-alt-F1) ...
SDL-fb-mousedrv-screensave.patch applies to SDL_fbevents.c
Switches default mouse mode based on SDL_MOUSEDRV - currently only
accepts PS2 - otherwise default is MS Mouse.
When the screen is switched - exisiting code (wrapped in ifdef
SAVE_SCREEN_COTENTS) would save the wrong bit of the screen....
( I run frame buffer 1600x1200, the size I requested was 800x600 - the
save would save the top 800 lines (non biased) and restore them... Adding
screen->offset fixed that )
However, if that option is not set, then a call to SDL_UpdateRect (full
screen) is made. (which may have had it's contents changed since the screen
is not entirely locked because of lock-failure patch)
Jim
[patches slightly tweaked for SDL 1.2.10]
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 22 Mar 2006 07:48:22 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_InitSubSystem</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="General" | |
14 HREF="general.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_Init" | |
17 HREF="sdlinit.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_QuitSubSystem" | |
20 HREF="sdlquitsubsystem.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="sdlinit.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="sdlquitsubsystem.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="SDLINITSUBSYSTEM" | |
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74 ></A |
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75 >SDL_InitSubSystem</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
55
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79 NAME="AEN510" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_InitSubSystem -- Initialize subsystems</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
55
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87 NAME="AEN513" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN514" |
0 | 95 ></A |
96 ><P | |
97 ></P | |
98 ><PRE | |
99 CLASS="FUNCSYNOPSISINFO" | |
100 >#include "SDL.h"</PRE | |
101 ><P | |
102 ><CODE | |
103 ><CODE | |
104 CLASS="FUNCDEF" | |
105 >int <B | |
106 CLASS="FSFUNC" | |
107 >SDL_InitSubSystem</B | |
108 ></CODE | |
109 >(Uint32 flags);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
55
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118 NAME="AEN520" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >After SDL has been initialized with <A | |
124 HREF="sdlinit.html" | |
125 ><TT | |
126 CLASS="FUNCTION" | |
127 >SDL_Init</TT | |
128 ></A | |
129 > you may initialize uninitialized subsystems with <TT | |
130 CLASS="FUNCTION" | |
131 >SDL_InitSubSystem</TT | |
132 >. The <TT | |
133 CLASS="PARAMETER" | |
134 ><I | |
135 >flags</I | |
136 ></TT | |
137 > parameter is the same as that used in <A | |
138 HREF="sdlinit.html" | |
139 ><TT | |
140 CLASS="FUNCTION" | |
141 >SDL_Init</TT | |
142 ></A | |
143 >.</P | |
144 ></DIV | |
145 ><DIV | |
146 CLASS="REFSECT1" | |
147 ><A | |
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148 NAME="AEN529" |
0 | 149 ></A |
150 ><H2 | |
151 >Examples</H2 | |
152 ><PRE | |
153 CLASS="PROGRAMLISTING" | |
154 >/* Seperating Joystick and Video initialization. */ | |
155 SDL_Init(SDL_INIT_VIDEO); | |
156 . | |
157 . | |
158 SDL_SetVideoMode(640, 480, 16, SDL_DOUBLEBUF|SDL_FULLSCREEN); | |
159 . | |
160 /* Do Some Video stuff */ | |
161 . | |
162 . | |
163 /* Initialize the joystick subsystem */ | |
164 SDL_InitSubSystem(SDL_INIT_JOYSTICK); | |
165 | |
166 /* Do some stuff with video and joystick */ | |
167 . | |
168 . | |
169 . | |
170 /* Shut them both down */ | |
171 SDL_Quit();</PRE | |
172 ></DIV | |
173 ><DIV | |
174 CLASS="REFSECT1" | |
175 ><A | |
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176 NAME="AEN532" |
0 | 177 ></A |
178 ><H2 | |
179 >Return Value</H2 | |
180 ><P | |
181 >Returns <SPAN | |
182 CLASS="RETURNVALUE" | |
183 >-1</SPAN | |
184 > on an error or <SPAN | |
185 CLASS="RETURNVALUE" | |
186 >0</SPAN | |
187 > on success.</P | |
188 ></DIV | |
189 ><DIV | |
190 CLASS="REFSECT1" | |
191 ><A | |
55
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192 NAME="AEN537" |
0 | 193 ></A |
194 ><H2 | |
195 >See Also</H2 | |
196 ><P | |
197 ><A | |
198 HREF="sdlinit.html" | |
199 ><TT | |
200 CLASS="FUNCTION" | |
201 >SDL_Init</TT | |
202 ></A | |
203 >, | |
204 <A | |
205 HREF="sdlquit.html" | |
206 ><TT | |
207 CLASS="FUNCTION" | |
208 >SDL_Quit</TT | |
209 ></A | |
210 >, | |
211 <A | |
212 HREF="sdlquitsubsystem.html" | |
213 ><TT | |
214 CLASS="FUNCTION" | |
215 >SDL_QuitSubSystem</TT | |
216 ></A | |
217 ></P | |
218 ></DIV | |
219 ><DIV | |
220 CLASS="NAVFOOTER" | |
221 ><HR | |
222 ALIGN="LEFT" | |
223 WIDTH="100%"><TABLE | |
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355632dca928
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224 SUMMARY="Footer navigation table" |
0 | 225 WIDTH="100%" |
226 BORDER="0" | |
227 CELLPADDING="0" | |
228 CELLSPACING="0" | |
229 ><TR | |
230 ><TD | |
231 WIDTH="33%" | |
232 ALIGN="left" | |
233 VALIGN="top" | |
234 ><A | |
235 HREF="sdlinit.html" | |
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355632dca928
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parents:
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236 ACCESSKEY="P" |
0 | 237 >Prev</A |
238 ></TD | |
239 ><TD | |
240 WIDTH="34%" | |
241 ALIGN="center" | |
242 VALIGN="top" | |
243 ><A | |
244 HREF="index.html" | |
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245 ACCESSKEY="H" |
0 | 246 >Home</A |
247 ></TD | |
248 ><TD | |
249 WIDTH="33%" | |
250 ALIGN="right" | |
251 VALIGN="top" | |
252 ><A | |
253 HREF="sdlquitsubsystem.html" | |
803
355632dca928
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254 ACCESSKEY="N" |
0 | 255 >Next</A |
256 ></TD | |
257 ></TR | |
258 ><TR | |
259 ><TD | |
260 WIDTH="33%" | |
261 ALIGN="left" | |
262 VALIGN="top" | |
263 >SDL_Init</TD | |
264 ><TD | |
265 WIDTH="34%" | |
266 ALIGN="center" | |
267 VALIGN="top" | |
268 ><A | |
269 HREF="general.html" | |
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270 ACCESSKEY="U" |
0 | 271 >Up</A |
272 ></TD | |
273 ><TD | |
274 WIDTH="33%" | |
275 ALIGN="right" | |
276 VALIGN="top" | |
277 >SDL_QuitSubSystem</TD | |
278 ></TR | |
279 ></TABLE | |
280 ></DIV | |
281 ></BODY | |
282 ></HTML | |
283 > |