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annotate docs/html/general.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 |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >General</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="SDL Reference" | |
14 HREF="reference.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL Reference" | |
17 HREF="reference.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_Init" | |
20 HREF="sdlinit.html"><META | |
21 NAME="KEYWORD" | |
22 CONTENT="general"><META | |
23 NAME="KEYWORD" | |
24 CONTENT="function"></HEAD | |
25 ><BODY | |
26 CLASS="CHAPTER" | |
27 BGCOLOR="#FFF8DC" | |
28 TEXT="#000000" | |
29 LINK="#0000ee" | |
30 VLINK="#551a8b" | |
31 ALINK="#ff0000" | |
32 ><DIV | |
33 CLASS="NAVHEADER" | |
34 ><TABLE | |
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35 SUMMARY="Header navigation table" |
0 | 36 WIDTH="100%" |
37 BORDER="0" | |
38 CELLPADDING="0" | |
39 CELLSPACING="0" | |
40 ><TR | |
41 ><TH | |
42 COLSPAN="3" | |
43 ALIGN="center" | |
44 >SDL Library Documentation</TH | |
45 ></TR | |
46 ><TR | |
47 ><TD | |
48 WIDTH="10%" | |
49 ALIGN="left" | |
50 VALIGN="bottom" | |
51 ><A | |
52 HREF="reference.html" | |
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53 ACCESSKEY="P" |
0 | 54 >Prev</A |
55 ></TD | |
56 ><TD | |
57 WIDTH="80%" | |
58 ALIGN="center" | |
59 VALIGN="bottom" | |
60 ></TD | |
61 ><TD | |
62 WIDTH="10%" | |
63 ALIGN="right" | |
64 VALIGN="bottom" | |
65 ><A | |
66 HREF="sdlinit.html" | |
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67 ACCESSKEY="N" |
0 | 68 >Next</A |
69 ></TD | |
70 ></TR | |
71 ></TABLE | |
72 ><HR | |
73 ALIGN="LEFT" | |
74 WIDTH="100%"></DIV | |
75 ><DIV | |
76 CLASS="CHAPTER" | |
77 ><H1 | |
78 ><A | |
79 NAME="GENERAL" | |
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80 ></A |
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81 >Chapter 5. General</H1 |
0 | 82 ><DIV |
83 CLASS="TOC" | |
84 ><DL | |
85 ><DT | |
86 ><B | |
87 >Table of Contents</B | |
88 ></DT | |
89 ><DT | |
90 ><A | |
91 HREF="sdlinit.html" | |
92 >SDL_Init</A | |
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93 > -- Initializes SDL</DT |
0 | 94 ><DT |
95 ><A | |
96 HREF="sdlinitsubsystem.html" | |
97 >SDL_InitSubSystem</A | |
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98 > -- Initialize subsystems</DT |
0 | 99 ><DT |
100 ><A | |
101 HREF="sdlquitsubsystem.html" | |
102 >SDL_QuitSubSystem</A | |
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103 > -- Shut down a subsystem</DT |
0 | 104 ><DT |
105 ><A | |
106 HREF="sdlquit.html" | |
107 >SDL_Quit</A | |
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108 > -- Shut down SDL</DT |
0 | 109 ><DT |
110 ><A | |
111 HREF="sdlwasinit.html" | |
112 >SDL_WasInit</A | |
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113 > -- Check which subsystems are initialized</DT |
181
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114 ><DT |
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115 ><A |
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116 HREF="sdlgeterror.html" |
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117 >SDL_GetError</A |
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118 > -- Get SDL error string</DT |
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119 ><DT |
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120 ><A |
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121 HREF="sdlenvvars.html" |
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122 >SDL_envvars</A |
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123 > -- SDL environment variables</DT |
0 | 124 ></DL |
125 ></DIV | |
126 ><P | |
127 >Before SDL can be used in a program it must be initialized with <A | |
128 HREF="sdlinit.html" | |
129 ><TT | |
130 CLASS="FUNCTION" | |
131 >SDL_Init</TT | |
132 ></A | |
133 >. <TT | |
134 CLASS="FUNCTION" | |
135 >SDL_Init</TT | |
136 > initializes all the subsystems that the user requests (video, audio, joystick, timers and/or cdrom). Once SDL is initialized with <TT | |
137 CLASS="FUNCTION" | |
138 >SDL_Init</TT | |
139 > subsystems can be shut down and initialized as needed using <A | |
140 HREF="sdlinitsubsystem.html" | |
141 ><TT | |
142 CLASS="FUNCTION" | |
143 >SDL_InitSubSystem</TT | |
144 ></A | |
145 > and <A | |
146 HREF="sdlquitsubsystem.html" | |
147 ><TT | |
148 CLASS="FUNCTION" | |
149 >SDL_QuitSubSystem</TT | |
150 ></A | |
151 >.</P | |
152 ><P | |
153 >SDL must also be shut down before the program exits to make sure it cleans up correctly. Calling <A | |
154 HREF="sdlquit.html" | |
155 ><TT | |
156 CLASS="FUNCTION" | |
157 >SDL_Quit</TT | |
158 ></A | |
159 > shuts down all subsystems and frees any resources allocated to SDL.</P | |
160 ></DIV | |
161 ><DIV | |
162 CLASS="NAVFOOTER" | |
163 ><HR | |
164 ALIGN="LEFT" | |
165 WIDTH="100%"><TABLE | |
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166 SUMMARY="Footer navigation table" |
0 | 167 WIDTH="100%" |
168 BORDER="0" | |
169 CELLPADDING="0" | |
170 CELLSPACING="0" | |
171 ><TR | |
172 ><TD | |
173 WIDTH="33%" | |
174 ALIGN="left" | |
175 VALIGN="top" | |
176 ><A | |
177 HREF="reference.html" | |
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178 ACCESSKEY="P" |
0 | 179 >Prev</A |
180 ></TD | |
181 ><TD | |
182 WIDTH="34%" | |
183 ALIGN="center" | |
184 VALIGN="top" | |
185 ><A | |
186 HREF="index.html" | |
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187 ACCESSKEY="H" |
0 | 188 >Home</A |
189 ></TD | |
190 ><TD | |
191 WIDTH="33%" | |
192 ALIGN="right" | |
193 VALIGN="top" | |
194 ><A | |
195 HREF="sdlinit.html" | |
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196 ACCESSKEY="N" |
0 | 197 >Next</A |
198 ></TD | |
199 ></TR | |
200 ><TR | |
201 ><TD | |
202 WIDTH="33%" | |
203 ALIGN="left" | |
204 VALIGN="top" | |
205 >SDL Reference</TD | |
206 ><TD | |
207 WIDTH="34%" | |
208 ALIGN="center" | |
209 VALIGN="top" | |
210 ><A | |
211 HREF="reference.html" | |
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212 ACCESSKEY="U" |
0 | 213 >Up</A |
214 ></TD | |
215 ><TD | |
216 WIDTH="33%" | |
217 ALIGN="right" | |
218 VALIGN="top" | |
219 >SDL_Init</TD | |
220 ></TR | |
221 ></TABLE | |
222 ></DIV | |
223 ></BODY | |
224 ></HTML | |
225 > |