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annotate docs/html/sdlglswapbuffers.html @ 1257:448a9a64537b
[PATCH] SDL_GetVideoMode() does not find best mode, part 2
Following commit 1.51, I come accross a problem when SDL must choose between
several video modes that could suit the one asked.
If I ask 320x240 with this list:
768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200
The smallest selectables modes are 384x240 and 320x400. And SDL choose the later
in this list, but 384x240 is more suitable. So I added a check to compare
the pixel count (surface) of modes, and select the one which has the smallest
pixel count.
In my example, 384x240 has 92160 pixels, and 320x400 has 128000 pixels. So now
SDL will choose 384x240 for the asked 320x240 mode.
author | Patrice Mandin <patmandin@gmail.com> |
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date | Thu, 19 Jan 2006 21:28:52 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_GL_SwapBuffers</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_GL_SetAttribute" | |
17 HREF="sdlglsetattribute.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_CreateYUVOverlay" | |
20 HREF="sdlcreateyuvoverlay.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="sdlglsetattribute.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="sdlcreateyuvoverlay.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="SDLGLSWAPBUFFERS" | |
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74 ></A |
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75 >SDL_GL_SwapBuffers</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2784" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_GL_SwapBuffers -- Swap OpenGL framebuffers/Update Display</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2787" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2788" |
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 >void <B | |
106 CLASS="FSFUNC" | |
107 >SDL_GL_SwapBuffers</B | |
108 ></CODE | |
109 >(void );</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2794" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Swap the OpenGL buffers, if double-buffering is supported.</P | |
124 ></DIV | |
125 ><DIV | |
126 CLASS="REFSECT1" | |
127 ><A | |
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128 NAME="AEN2797" |
0 | 129 ></A |
130 ><H2 | |
131 >See Also</H2 | |
132 ><P | |
133 ><A | |
134 HREF="sdlsetvideomode.html" | |
135 ><TT | |
136 CLASS="FUNCTION" | |
137 >SDL_SetVideoMode</TT | |
138 ></A | |
139 >, | |
140 <A | |
141 HREF="sdlglsetattribute.html" | |
142 ><TT | |
143 CLASS="FUNCTION" | |
144 >SDL_GL_SetAttribute</TT | |
145 ></A | |
146 ></P | |
147 ></DIV | |
148 ><DIV | |
149 CLASS="NAVFOOTER" | |
150 ><HR | |
151 ALIGN="LEFT" | |
152 WIDTH="100%"><TABLE | |
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153 SUMMARY="Footer navigation table" |
0 | 154 WIDTH="100%" |
155 BORDER="0" | |
156 CELLPADDING="0" | |
157 CELLSPACING="0" | |
158 ><TR | |
159 ><TD | |
160 WIDTH="33%" | |
161 ALIGN="left" | |
162 VALIGN="top" | |
163 ><A | |
164 HREF="sdlglsetattribute.html" | |
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165 ACCESSKEY="P" |
0 | 166 >Prev</A |
167 ></TD | |
168 ><TD | |
169 WIDTH="34%" | |
170 ALIGN="center" | |
171 VALIGN="top" | |
172 ><A | |
173 HREF="index.html" | |
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174 ACCESSKEY="H" |
0 | 175 >Home</A |
176 ></TD | |
177 ><TD | |
178 WIDTH="33%" | |
179 ALIGN="right" | |
180 VALIGN="top" | |
181 ><A | |
182 HREF="sdlcreateyuvoverlay.html" | |
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183 ACCESSKEY="N" |
0 | 184 >Next</A |
185 ></TD | |
186 ></TR | |
187 ><TR | |
188 ><TD | |
189 WIDTH="33%" | |
190 ALIGN="left" | |
191 VALIGN="top" | |
192 >SDL_GL_SetAttribute</TD | |
193 ><TD | |
194 WIDTH="34%" | |
195 ALIGN="center" | |
196 VALIGN="top" | |
197 ><A | |
198 HREF="video.html" | |
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199 ACCESSKEY="U" |
0 | 200 >Up</A |
201 ></TD | |
202 ><TD | |
203 WIDTH="33%" | |
204 ALIGN="right" | |
205 VALIGN="top" | |
206 >SDL_CreateYUVOverlay</TD | |
207 ></TR | |
208 ></TABLE | |
209 ></DIV | |
210 ></BODY | |
211 ></HTML | |
212 > |