Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdplaytracks.html @ 3100:7dc982143c06
Date: Sun, 22 Mar 2009 12:52:29 +0000
From: Luke Benstead
Subject: OpenGL 3.0 Context Creation
I've attached a patch which implements OpenGL 3.x context creation on
the latest SVN. I've added two options to SDL_GL_SetAttribute, these
are SDL_GL_CONTEXT_MAJOR_VERSION and SDL_GL_CONTEXT_MINOR_VERSION.
These default to 2 and 1 respectively. If the major version is less
than 3 then the current context creation method is used, otherwise the
appropriate new context creation function is called (depending on the
platform).
Sample code:
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
printf("Unable to initialize SDL: %s\n", SDL_GetError());
return 1;
}
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3); //Without these 2 lines, SDL will create a GL 2.x context
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_Surface* screen = SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL | SDL_FULLSCREEN );
I've implemented context creation on both Win32 and X and run basic
tests on both. This patch doesn't provide access to all the options
allowed by the new context creation (e.g. shared contexts, forward
compatible contexts) but they can be added pretty easily.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Tue, 24 Mar 2009 10:43:53 +0000 |
parents | 355632dca928 |
children |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_CDPlayTracks</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="CD-ROM" | |
14 HREF="cdrom.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_CDPlay" | |
17 HREF="sdlcdplay.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_CDPause" | |
20 HREF="sdlcdpause.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="sdlcdplay.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="sdlcdpause.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="SDLCDPLAYTRACKS" | |
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74 ></A |
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75 >SDL_CDPlayTracks</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN7375" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_CDPlayTracks -- Play the given CD track(s)</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN7378" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN7379" |
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_CDPlayTracks</B | |
108 ></CODE | |
109 >(SDL_CD *cdrom, int start_track, int start_frame, int ntracks, int nframes));</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN7385" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 ><TT | |
124 CLASS="FUNCTION" | |
125 >SDL_CDPlayTracks</TT | |
126 > plays the given CD starting at track | |
127 <TT | |
128 CLASS="PARAMETER" | |
129 ><I | |
130 >start_track</I | |
131 ></TT | |
132 >, for <TT | |
133 CLASS="PARAMETER" | |
134 ><I | |
135 >ntracks</I | |
136 ></TT | |
137 > tracks. </P | |
138 ><P | |
139 ><TT | |
140 CLASS="PARAMETER" | |
141 ><I | |
142 >start_frame</I | |
143 ></TT | |
144 > is the frame offset, from the beginning of the <TT | |
145 CLASS="PARAMETER" | |
146 ><I | |
147 >start_track</I | |
148 ></TT | |
149 >, at which to start. <TT | |
150 CLASS="PARAMETER" | |
151 ><I | |
152 >nframes</I | |
153 ></TT | |
154 > is the frame offset, from the beginning of the last track (<TT | |
155 CLASS="PARAMETER" | |
156 ><I | |
157 >start_track</I | |
158 ></TT | |
159 >+<TT | |
160 CLASS="PARAMETER" | |
161 ><I | |
162 >ntracks</I | |
163 ></TT | |
164 >), at which to end playing.</P | |
165 ><P | |
166 ><TT | |
167 CLASS="FUNCTION" | |
168 >SDL_CDPlayTracks</TT | |
169 > should only be called after calling | |
170 <A | |
171 HREF="sdlcdstatus.html" | |
172 ><TT | |
173 CLASS="FUNCTION" | |
174 >SDL_CDStatus</TT | |
175 ></A | |
176 > | |
177 to get track information about the CD.</P | |
178 ><DIV | |
179 CLASS="NOTE" | |
180 ><BLOCKQUOTE | |
181 CLASS="NOTE" | |
182 ><P | |
183 ><B | |
184 >Note: </B | |
185 >Data tracks are ignored.</P | |
186 ></BLOCKQUOTE | |
187 ></DIV | |
188 ></DIV | |
189 ><DIV | |
190 CLASS="REFSECT1" | |
191 ><A | |
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192 NAME="AEN7403" |
0 | 193 ></A |
194 ><H2 | |
195 >Return Value</H2 | |
196 ><P | |
197 >Returns <SPAN | |
198 CLASS="RETURNVALUE" | |
199 >0</SPAN | |
200 >, or <SPAN | |
201 CLASS="RETURNVALUE" | |
202 >-1</SPAN | |
203 > | |
204 if there was an error.</P | |
205 ></DIV | |
206 ><DIV | |
207 CLASS="REFSECT1" | |
208 ><A | |
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209 NAME="AEN7408" |
0 | 210 ></A |
211 ><H2 | |
212 >Examples</H2 | |
213 ><P | |
214 ><PRE | |
215 CLASS="PROGRAMLISTING" | |
216 >/* assuming cdrom is a previously opened device */ | |
217 /* Play the entire CD */ | |
218 if(CD_INDRIVE(SDL_CDStatus(cdrom))) | |
219 SDL_CDPlayTracks(cdrom, 0, 0, 0, 0); | |
220 | |
221 /* Play the first track */ | |
222 if(CD_INDRIVE(SDL_CDStatus(cdrom))) | |
223 SDL_CDPlayTracks(cdrom, 0, 0, 1, 0); | |
224 | |
225 /* Play first 15 seconds of the 2nd track */ | |
226 if(CD_INDRIVE(SDL_CDStatus(cdrom))) | |
227 SDL_CDPlayTracks(cdrom, 1, 0, 0, CD_FPS*15);</PRE | |
228 > | |
229 </P | |
230 ></DIV | |
231 ><DIV | |
232 CLASS="REFSECT1" | |
233 ><A | |
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234 NAME="AEN7412" |
0 | 235 ></A |
236 ><H2 | |
237 >See Also</H2 | |
238 ><P | |
239 ><A | |
240 HREF="sdlcdplay.html" | |
241 ><TT | |
242 CLASS="FUNCTION" | |
243 >SDL_CDPlay</TT | |
244 ></A | |
245 >, | |
246 <A | |
247 HREF="sdlcdstatus.html" | |
248 ><TT | |
249 CLASS="FUNCTION" | |
250 >SDL_CDStatus</TT | |
251 ></A | |
252 >, | |
253 <A | |
254 HREF="sdlcd.html" | |
255 ><TT | |
256 CLASS="FUNCTION" | |
257 >SDL_CD</TT | |
258 ></A | |
259 ></P | |
260 ></DIV | |
261 ><DIV | |
262 CLASS="NAVFOOTER" | |
263 ><HR | |
264 ALIGN="LEFT" | |
265 WIDTH="100%"><TABLE | |
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266 SUMMARY="Footer navigation table" |
0 | 267 WIDTH="100%" |
268 BORDER="0" | |
269 CELLPADDING="0" | |
270 CELLSPACING="0" | |
271 ><TR | |
272 ><TD | |
273 WIDTH="33%" | |
274 ALIGN="left" | |
275 VALIGN="top" | |
276 ><A | |
277 HREF="sdlcdplay.html" | |
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278 ACCESSKEY="P" |
0 | 279 >Prev</A |
280 ></TD | |
281 ><TD | |
282 WIDTH="34%" | |
283 ALIGN="center" | |
284 VALIGN="top" | |
285 ><A | |
286 HREF="index.html" | |
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287 ACCESSKEY="H" |
0 | 288 >Home</A |
289 ></TD | |
290 ><TD | |
291 WIDTH="33%" | |
292 ALIGN="right" | |
293 VALIGN="top" | |
294 ><A | |
295 HREF="sdlcdpause.html" | |
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296 ACCESSKEY="N" |
0 | 297 >Next</A |
298 ></TD | |
299 ></TR | |
300 ><TR | |
301 ><TD | |
302 WIDTH="33%" | |
303 ALIGN="left" | |
304 VALIGN="top" | |
305 >SDL_CDPlay</TD | |
306 ><TD | |
307 WIDTH="34%" | |
308 ALIGN="center" | |
309 VALIGN="top" | |
310 ><A | |
311 HREF="cdrom.html" | |
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312 ACCESSKEY="U" |
0 | 313 >Up</A |
314 ></TD | |
315 ><TD | |
316 WIDTH="33%" | |
317 ALIGN="right" | |
318 VALIGN="top" | |
319 >SDL_CDPause</TD | |
320 ></TR | |
321 ></TABLE | |
322 ></DIV | |
323 ></BODY | |
324 ></HTML | |
325 > |