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annotate docs/html/sdlrect.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_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 > |