Mercurial > sdl-ios-xcode
annotate docs/html/sdlwarpmouse.html @ 3335:b8d313de8a65
Adam Strzelecki to SDL
Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit.
Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes).
(1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs
(2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space
(3) Copy other planes for planar YUVs in UpdateTexture
(4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code
Waiting for comments,
--
Adam Strzelecki | nanoant.com
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 04 Oct 2009 04:03:37 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_WarpMouse</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_DisplayFormatAlpha" | |
17 HREF="sdldisplayformatalpha.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_CreateCursor" | |
20 HREF="sdlcreatecursor.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="sdldisplayformatalpha.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="sdlcreatecursor.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="SDLWARPMOUSE" | |
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74 ></A |
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75 >SDL_WarpMouse</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN2465" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_WarpMouse -- Set the position of the mouse cursor.</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN2468" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN2469" |
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_WarpMouse</B | |
108 ></CODE | |
109 >(Uint16 x, Uint16 y);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN2475" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Set the position of the mouse cursor (generates a mouse motion event).</P | |
124 ></DIV | |
125 ><DIV | |
126 CLASS="REFSECT1" | |
127 ><A | |
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128 NAME="AEN2478" |
0 | 129 ></A |
130 ><H2 | |
131 >See Also</H2 | |
132 ><P | |
133 ><A | |
134 HREF="sdlmousemotionevent.html" | |
135 ><SPAN | |
136 CLASS="STRUCTNAME" | |
137 >SDL_MouseMotionEvent</SPAN | |
138 ></A | |
139 ></P | |
140 ></DIV | |
141 ><DIV | |
142 CLASS="NAVFOOTER" | |
143 ><HR | |
144 ALIGN="LEFT" | |
145 WIDTH="100%"><TABLE | |
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146 SUMMARY="Footer navigation table" |
0 | 147 WIDTH="100%" |
148 BORDER="0" | |
149 CELLPADDING="0" | |
150 CELLSPACING="0" | |
151 ><TR | |
152 ><TD | |
153 WIDTH="33%" | |
154 ALIGN="left" | |
155 VALIGN="top" | |
156 ><A | |
157 HREF="sdldisplayformatalpha.html" | |
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158 ACCESSKEY="P" |
0 | 159 >Prev</A |
160 ></TD | |
161 ><TD | |
162 WIDTH="34%" | |
163 ALIGN="center" | |
164 VALIGN="top" | |
165 ><A | |
166 HREF="index.html" | |
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167 ACCESSKEY="H" |
0 | 168 >Home</A |
169 ></TD | |
170 ><TD | |
171 WIDTH="33%" | |
172 ALIGN="right" | |
173 VALIGN="top" | |
174 ><A | |
175 HREF="sdlcreatecursor.html" | |
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176 ACCESSKEY="N" |
0 | 177 >Next</A |
178 ></TD | |
179 ></TR | |
180 ><TR | |
181 ><TD | |
182 WIDTH="33%" | |
183 ALIGN="left" | |
184 VALIGN="top" | |
185 >SDL_DisplayFormatAlpha</TD | |
186 ><TD | |
187 WIDTH="34%" | |
188 ALIGN="center" | |
189 VALIGN="top" | |
190 ><A | |
191 HREF="video.html" | |
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192 ACCESSKEY="U" |
0 | 193 >Up</A |
194 ></TD | |
195 ><TD | |
196 WIDTH="33%" | |
197 ALIGN="right" | |
198 VALIGN="top" | |
199 >SDL_CreateCursor</TD | |
200 ></TR | |
201 ></TABLE | |
202 ></DIV | |
203 ></BODY | |
204 ></HTML | |
205 > |