Mercurial > sdl-ios-xcode
annotate docs/html/sdljoystickname.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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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_JoystickName</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="Joystick" | |
14 HREF="joystick.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_NumJoysticks" | |
17 HREF="sdlnumjoysticks.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_JoystickOpen" | |
20 HREF="sdljoystickopen.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="sdlnumjoysticks.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="sdljoystickopen.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="SDLJOYSTICKNAME" | |
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74 ></A |
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75 >SDL_JoystickName</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN6066" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_JoystickName -- Get joystick name.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN6069" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN6070" |
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 >const char *<B | |
106 CLASS="FSFUNC" | |
107 >SDL_JoystickName</B | |
108 ></CODE | |
109 >(int index);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN6076" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Get the implementation dependent name of joystick. The <TT | |
124 CLASS="PARAMETER" | |
125 ><I | |
126 >index</I | |
127 ></TT | |
128 > parameter refers to the N'th joystick on the system.</P | |
129 ></DIV | |
130 ><DIV | |
131 CLASS="REFSECT1" | |
132 ><A | |
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133 NAME="AEN6080" |
0 | 134 ></A |
135 ><H2 | |
136 >Return Value</H2 | |
137 ><P | |
138 >Returns a char pointer to the joystick name.</P | |
139 ></DIV | |
140 ><DIV | |
141 CLASS="REFSECT1" | |
142 ><A | |
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143 NAME="AEN6083" |
0 | 144 ></A |
145 ><H2 | |
146 >Examples</H2 | |
147 ><P | |
148 ><PRE | |
149 CLASS="PROGRAMLISTING" | |
150 >/* Print the names of all attached joysticks */ | |
151 int num_joy, i; | |
152 num_joy=SDL_NumJoysticks(); | |
153 printf("%d joysticks found\n", num_joy); | |
154 for(i=0;i<num_joy;i++) | |
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155 printf("%s\n", SDL_JoystickName(i));</PRE |
0 | 156 ></P |
157 ></DIV | |
158 ><DIV | |
159 CLASS="REFSECT1" | |
160 ><A | |
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161 NAME="AEN6087" |
0 | 162 ></A |
163 ><H2 | |
164 >See Also</H2 | |
165 ><P | |
166 ><A | |
167 HREF="sdljoystickopen.html" | |
168 ><TT | |
169 CLASS="FUNCTION" | |
170 >SDL_JoystickOpen</TT | |
171 ></A | |
172 ></P | |
173 ></DIV | |
174 ><DIV | |
175 CLASS="NAVFOOTER" | |
176 ><HR | |
177 ALIGN="LEFT" | |
178 WIDTH="100%"><TABLE | |
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179 SUMMARY="Footer navigation table" |
0 | 180 WIDTH="100%" |
181 BORDER="0" | |
182 CELLPADDING="0" | |
183 CELLSPACING="0" | |
184 ><TR | |
185 ><TD | |
186 WIDTH="33%" | |
187 ALIGN="left" | |
188 VALIGN="top" | |
189 ><A | |
190 HREF="sdlnumjoysticks.html" | |
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191 ACCESSKEY="P" |
0 | 192 >Prev</A |
193 ></TD | |
194 ><TD | |
195 WIDTH="34%" | |
196 ALIGN="center" | |
197 VALIGN="top" | |
198 ><A | |
199 HREF="index.html" | |
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200 ACCESSKEY="H" |
0 | 201 >Home</A |
202 ></TD | |
203 ><TD | |
204 WIDTH="33%" | |
205 ALIGN="right" | |
206 VALIGN="top" | |
207 ><A | |
208 HREF="sdljoystickopen.html" | |
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209 ACCESSKEY="N" |
0 | 210 >Next</A |
211 ></TD | |
212 ></TR | |
213 ><TR | |
214 ><TD | |
215 WIDTH="33%" | |
216 ALIGN="left" | |
217 VALIGN="top" | |
218 >SDL_NumJoysticks</TD | |
219 ><TD | |
220 WIDTH="34%" | |
221 ALIGN="center" | |
222 VALIGN="top" | |
223 ><A | |
224 HREF="joystick.html" | |
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225 ACCESSKEY="U" |
0 | 226 >Up</A |
227 ></TD | |
228 ><TD | |
229 WIDTH="33%" | |
230 ALIGN="right" | |
231 VALIGN="top" | |
232 >SDL_JoystickOpen</TD | |
233 ></TR | |
234 ></TABLE | |
235 ></DIV | |
236 ></BODY | |
237 ></HTML | |
238 > |