Mercurial > sdl-ios-xcode
annotate docs/html/sdlrect.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_Rect</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="Video" | |
14 HREF="video.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_GLattr" | |
17 HREF="sdlglattr.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_Color" | |
20 HREF="sdlcolor.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="sdlglattr.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="sdlcolor.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="SDLRECT" | |
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74 ></A |
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75 >SDL_Rect</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN3046" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_Rect -- Defines a rectangular area</DIV | |
84 ><DIV | |
85 CLASS="REFSECT1" | |
86 ><A | |
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87 NAME="AEN3049" |
0 | 88 ></A |
89 ><H2 | |
90 >Structure Definition</H2 | |
91 ><PRE | |
92 CLASS="PROGRAMLISTING" | |
93 >typedef struct{ | |
94 Sint16 x, y; | |
95 Uint16 w, h; | |
96 } SDL_Rect;</PRE | |
97 ></DIV | |
98 ><DIV | |
99 CLASS="REFSECT1" | |
100 ><A | |
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101 NAME="AEN3052" |
0 | 102 ></A |
103 ><H2 | |
104 >Structure Data</H2 | |
105 ><DIV | |
106 CLASS="INFORMALTABLE" | |
107 ><A | |
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108 NAME="AEN3054" |
0 | 109 ></A |
110 ><P | |
111 ></P | |
112 ><TABLE | |
113 BORDER="0" | |
114 CLASS="CALSTABLE" | |
115 ><TBODY | |
116 ><TR | |
117 ><TD | |
118 ALIGN="LEFT" | |
119 VALIGN="TOP" | |
120 ><TT | |
121 CLASS="STRUCTFIELD" | |
122 ><I | |
123 >x, y</I | |
124 ></TT | |
125 ></TD | |
126 ><TD | |
127 ALIGN="LEFT" | |
128 VALIGN="TOP" | |
129 >Position of the upper-left corner of the rectangle</TD | |
130 ></TR | |
131 ><TR | |
132 ><TD | |
133 ALIGN="LEFT" | |
134 VALIGN="TOP" | |
135 ><TT | |
136 CLASS="STRUCTFIELD" | |
137 ><I | |
138 >w, h</I | |
139 ></TT | |
140 ></TD | |
141 ><TD | |
142 ALIGN="LEFT" | |
143 VALIGN="TOP" | |
144 >The width and height of the rectangle</TD | |
145 ></TR | |
146 ></TBODY | |
147 ></TABLE | |
148 ><P | |
149 ></P | |
150 ></DIV | |
151 ></DIV | |
152 ><DIV | |
153 CLASS="REFSECT1" | |
154 ><A | |
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155 NAME="AEN3065" |
0 | 156 ></A |
157 ><H2 | |
158 >Description</H2 | |
159 ><P | |
160 >A <SPAN | |
161 CLASS="STRUCTNAME" | |
162 >SDL_Rect</SPAN | |
163 > defines a rectangular area of pixels. It is used by <A | |
164 HREF="sdlblitsurface.html" | |
165 ><TT | |
166 CLASS="FUNCTION" | |
167 >SDL_BlitSurface</TT | |
168 ></A | |
169 > to define blitting regions and by several other video functions.</P | |
170 ></DIV | |
171 ><DIV | |
172 CLASS="REFSECT1" | |
173 ><A | |
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174 NAME="AEN3071" |
0 | 175 ></A |
176 ><H2 | |
177 >See Also</H2 | |
178 ><P | |
179 ><A | |
180 HREF="sdlblitsurface.html" | |
181 ><TT | |
182 CLASS="FUNCTION" | |
183 >SDL_BlitSurface</TT | |
184 ></A | |
185 >, | |
186 <A | |
187 HREF="sdlupdaterect.html" | |
188 ><TT | |
189 CLASS="FUNCTION" | |
190 >SDL_UpdateRect</TT | |
191 ></A | |
192 ></P | |
193 ></DIV | |
194 ><DIV | |
195 CLASS="NAVFOOTER" | |
196 ><HR | |
197 ALIGN="LEFT" | |
198 WIDTH="100%"><TABLE | |
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199 SUMMARY="Footer navigation table" |
0 | 200 WIDTH="100%" |
201 BORDER="0" | |
202 CELLPADDING="0" | |
203 CELLSPACING="0" | |
204 ><TR | |
205 ><TD | |
206 WIDTH="33%" | |
207 ALIGN="left" | |
208 VALIGN="top" | |
209 ><A | |
210 HREF="sdlglattr.html" | |
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211 ACCESSKEY="P" |
0 | 212 >Prev</A |
213 ></TD | |
214 ><TD | |
215 WIDTH="34%" | |
216 ALIGN="center" | |
217 VALIGN="top" | |
218 ><A | |
219 HREF="index.html" | |
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220 ACCESSKEY="H" |
0 | 221 >Home</A |
222 ></TD | |
223 ><TD | |
224 WIDTH="33%" | |
225 ALIGN="right" | |
226 VALIGN="top" | |
227 ><A | |
228 HREF="sdlcolor.html" | |
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229 ACCESSKEY="N" |
0 | 230 >Next</A |
231 ></TD | |
232 ></TR | |
233 ><TR | |
234 ><TD | |
235 WIDTH="33%" | |
236 ALIGN="left" | |
237 VALIGN="top" | |
238 >SDL_GLattr</TD | |
239 ><TD | |
240 WIDTH="34%" | |
241 ALIGN="center" | |
242 VALIGN="top" | |
243 ><A | |
244 HREF="video.html" | |
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245 ACCESSKEY="U" |
0 | 246 >Up</A |
247 ></TD | |
248 ><TD | |
249 WIDTH="33%" | |
250 ALIGN="right" | |
251 VALIGN="top" | |
252 >SDL_Color</TD | |
253 ></TR | |
254 ></TABLE | |
255 ></DIV | |
256 ></BODY | |
257 ></HTML | |
258 > |