Mercurial > sdl-ios-xcode
annotate docs/html/sdlsavebmp.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> |
---|---|
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_SaveBMP</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_LoadBMP" | |
17 HREF="sdlloadbmp.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_SetColorKey" | |
20 HREF="sdlsetcolorkey.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="sdlloadbmp.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="sdlsetcolorkey.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="SDLSAVEBMP" | |
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74 ></A |
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75 >SDL_SaveBMP</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2015" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_SaveBMP -- Save an SDL_Surface as a Windows BMP file.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2018" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2019" |
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_SaveBMP</B | |
108 ></CODE | |
109 >(SDL_Surface *surface, const char *file);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2025" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Saves the <SPAN | |
124 CLASS="STRUCTNAME" | |
125 >SDL_Surface</SPAN | |
126 > <TT | |
127 CLASS="PARAMETER" | |
128 ><I | |
129 >surface</I | |
130 ></TT | |
131 > as a Windows BMP file named <TT | |
132 CLASS="PARAMETER" | |
133 ><I | |
134 >file</I | |
135 ></TT | |
136 >.</P | |
137 ></DIV | |
138 ><DIV | |
139 CLASS="REFSECT1" | |
140 ><A | |
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141 NAME="AEN2031" |
0 | 142 ></A |
143 ><H2 | |
144 >Return Value</H2 | |
145 ><P | |
146 >Returns <SPAN | |
147 CLASS="RETURNVALUE" | |
148 >0</SPAN | |
149 > if successful or | |
150 <SPAN | |
151 CLASS="RETURNVALUE" | |
152 >-1</SPAN | |
153 > | |
154 if there was an error.</P | |
155 ></DIV | |
156 ><DIV | |
157 CLASS="REFSECT1" | |
158 ><A | |
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159 NAME="AEN2036" |
0 | 160 ></A |
161 ><H2 | |
162 >See Also</H2 | |
163 ><P | |
164 ><A | |
165 HREF="sdlloadbmp.html" | |
166 ><TT | |
167 CLASS="FUNCTION" | |
168 >SDL_LoadBMP</TT | |
169 ></A | |
170 ></P | |
171 ></DIV | |
172 ><DIV | |
173 CLASS="NAVFOOTER" | |
174 ><HR | |
175 ALIGN="LEFT" | |
176 WIDTH="100%"><TABLE | |
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177 SUMMARY="Footer navigation table" |
0 | 178 WIDTH="100%" |
179 BORDER="0" | |
180 CELLPADDING="0" | |
181 CELLSPACING="0" | |
182 ><TR | |
183 ><TD | |
184 WIDTH="33%" | |
185 ALIGN="left" | |
186 VALIGN="top" | |
187 ><A | |
188 HREF="sdlloadbmp.html" | |
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189 ACCESSKEY="P" |
0 | 190 >Prev</A |
191 ></TD | |
192 ><TD | |
193 WIDTH="34%" | |
194 ALIGN="center" | |
195 VALIGN="top" | |
196 ><A | |
197 HREF="index.html" | |
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198 ACCESSKEY="H" |
0 | 199 >Home</A |
200 ></TD | |
201 ><TD | |
202 WIDTH="33%" | |
203 ALIGN="right" | |
204 VALIGN="top" | |
205 ><A | |
206 HREF="sdlsetcolorkey.html" | |
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207 ACCESSKEY="N" |
0 | 208 >Next</A |
209 ></TD | |
210 ></TR | |
211 ><TR | |
212 ><TD | |
213 WIDTH="33%" | |
214 ALIGN="left" | |
215 VALIGN="top" | |
216 >SDL_LoadBMP</TD | |
217 ><TD | |
218 WIDTH="34%" | |
219 ALIGN="center" | |
220 VALIGN="top" | |
221 ><A | |
222 HREF="video.html" | |
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223 ACCESSKEY="U" |
0 | 224 >Up</A |
225 ></TD | |
226 ><TD | |
227 WIDTH="33%" | |
228 ALIGN="right" | |
229 VALIGN="top" | |
230 >SDL_SetColorKey</TD | |
231 ></TR | |
232 ></TABLE | |
233 ></DIV | |
234 ></BODY | |
235 ></HTML | |
236 > |