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annotate docs/html/sdldisplayyuvoverlay.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_DisplayYUVOverlay</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_UnlockYUVOverlay" | |
17 HREF="sdlunlockyuvoverlay.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_FreeYUVOverlay" | |
20 HREF="sdlfreeyuvoverlay.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="sdlunlockyuvoverlay.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="sdlfreeyuvoverlay.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="SDLDISPLAYYUVOVERLAY" | |
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74 ></A |
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75 >SDL_DisplayYUVOverlay</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2908" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_DisplayYUVOverlay -- Blit the overlay to the display</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2911" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2912" |
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_DisplayYUVOverlay</B | |
108 ></CODE | |
109 >(SDL_Overlay *overlay, SDL_Rect *dstrect);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2918" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Blit the <TT | |
124 CLASS="PARAMETER" | |
125 ><I | |
126 >overlay</I | |
127 ></TT | |
128 > to the surface specified when it was <A | |
129 HREF="sdlcreateyuvoverlay.html" | |
130 >created</A | |
131 >. The <A | |
132 HREF="sdlrect.html" | |
133 ><SPAN | |
134 CLASS="STRUCTNAME" | |
135 >SDL_Rect</SPAN | |
136 ></A | |
137 > structure, <TT | |
138 CLASS="PARAMETER" | |
139 ><I | |
140 >dstrect</I | |
141 ></TT | |
142 >, specifies the position and size of the destination. If the <TT | |
143 CLASS="PARAMETER" | |
144 ><I | |
145 >dstrect</I | |
146 ></TT | |
147 > is a larger or smaller than the overlay then the overlay will be scaled, this is optimized for 2x scaling.</P | |
148 ></DIV | |
149 ><DIV | |
150 CLASS="REFSECT1" | |
151 ><A | |
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152 NAME="AEN2927" |
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153 ></A |
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154 ><H2 |
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155 >Return Values</H2 |
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156 ><P |
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157 >Returns 0 on success</P |
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158 ></DIV |
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159 ><DIV |
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160 CLASS="REFSECT1" |
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161 ><A |
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162 NAME="AEN2930" |
0 | 163 ></A |
164 ><H2 | |
165 >See Also</H2 | |
166 ><P | |
167 ><A | |
168 HREF="sdloverlay.html" | |
169 ><SPAN | |
170 CLASS="STRUCTNAME" | |
171 >SDL_Overlay</SPAN | |
172 ></A | |
173 >, | |
174 <A | |
175 HREF="sdlcreateyuvoverlay.html" | |
176 ><TT | |
177 CLASS="FUNCTION" | |
178 >SDL_CreateYUVOverlay</TT | |
179 ></A | |
180 ></P | |
181 ></DIV | |
182 ><DIV | |
183 CLASS="NAVFOOTER" | |
184 ><HR | |
185 ALIGN="LEFT" | |
186 WIDTH="100%"><TABLE | |
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187 SUMMARY="Footer navigation table" |
0 | 188 WIDTH="100%" |
189 BORDER="0" | |
190 CELLPADDING="0" | |
191 CELLSPACING="0" | |
192 ><TR | |
193 ><TD | |
194 WIDTH="33%" | |
195 ALIGN="left" | |
196 VALIGN="top" | |
197 ><A | |
198 HREF="sdlunlockyuvoverlay.html" | |
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199 ACCESSKEY="P" |
0 | 200 >Prev</A |
201 ></TD | |
202 ><TD | |
203 WIDTH="34%" | |
204 ALIGN="center" | |
205 VALIGN="top" | |
206 ><A | |
207 HREF="index.html" | |
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208 ACCESSKEY="H" |
0 | 209 >Home</A |
210 ></TD | |
211 ><TD | |
212 WIDTH="33%" | |
213 ALIGN="right" | |
214 VALIGN="top" | |
215 ><A | |
216 HREF="sdlfreeyuvoverlay.html" | |
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217 ACCESSKEY="N" |
0 | 218 >Next</A |
219 ></TD | |
220 ></TR | |
221 ><TR | |
222 ><TD | |
223 WIDTH="33%" | |
224 ALIGN="left" | |
225 VALIGN="top" | |
226 >SDL_UnlockYUVOverlay</TD | |
227 ><TD | |
228 WIDTH="34%" | |
229 ALIGN="center" | |
230 VALIGN="top" | |
231 ><A | |
232 HREF="video.html" | |
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233 ACCESSKEY="U" |
0 | 234 >Up</A |
235 ></TD | |
236 ><TD | |
237 WIDTH="33%" | |
238 ALIGN="right" | |
239 VALIGN="top" | |
240 >SDL_FreeYUVOverlay</TD | |
241 ></TR | |
242 ></TABLE | |
243 ></DIV | |
244 ></BODY | |
245 ></HTML | |
246 > |