Mercurial > sdl-ios-xcode
annotate docs/html/guideaboutsdldoc.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 >About SDLdoc</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="Preface" | |
14 HREF="guidepreface.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="Preface" | |
17 HREF="guidepreface.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="Credits" | |
20 HREF="guidecredits.html"></HEAD | |
21 ><BODY | |
22 CLASS="SECT1" | |
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="guidepreface.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 >Preface</TD | |
57 ><TD | |
58 WIDTH="10%" | |
59 ALIGN="right" | |
60 VALIGN="bottom" | |
61 ><A | |
62 HREF="guidecredits.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 ><DIV | |
72 CLASS="SECT1" | |
73 ><H1 | |
74 CLASS="SECT1" | |
75 ><A | |
76 NAME="GUIDEABOUTSDLDOC" | |
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77 ></A |
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78 >About SDLdoc</H1 |
0 | 79 ><P |
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80 >SDLdoc (The SDL Documentation Project) was formed to completely rewrite the SDL documentation and to keep it continually up to date. The team consists completely of volunteers ranging from people working with SDL in their spare time to people who use SDL in their everyday working lives.</P |
0 | 81 ><P |
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82 >The latest version of this documentation can always be found here: http://sdldoc.csn.ul.ie Downloadable PS, man pages and html tarballs are available at http://sdldoc.csn.ul.ie/pub/</P |
0 | 83 ></DIV |
84 ><DIV | |
85 CLASS="NAVFOOTER" | |
86 ><HR | |
87 ALIGN="LEFT" | |
88 WIDTH="100%"><TABLE | |
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89 SUMMARY="Footer navigation table" |
0 | 90 WIDTH="100%" |
91 BORDER="0" | |
92 CELLPADDING="0" | |
93 CELLSPACING="0" | |
94 ><TR | |
95 ><TD | |
96 WIDTH="33%" | |
97 ALIGN="left" | |
98 VALIGN="top" | |
99 ><A | |
100 HREF="guidepreface.html" | |
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101 ACCESSKEY="P" |
0 | 102 >Prev</A |
103 ></TD | |
104 ><TD | |
105 WIDTH="34%" | |
106 ALIGN="center" | |
107 VALIGN="top" | |
108 ><A | |
109 HREF="index.html" | |
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110 ACCESSKEY="H" |
0 | 111 >Home</A |
112 ></TD | |
113 ><TD | |
114 WIDTH="33%" | |
115 ALIGN="right" | |
116 VALIGN="top" | |
117 ><A | |
118 HREF="guidecredits.html" | |
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119 ACCESSKEY="N" |
0 | 120 >Next</A |
121 ></TD | |
122 ></TR | |
123 ><TR | |
124 ><TD | |
125 WIDTH="33%" | |
126 ALIGN="left" | |
127 VALIGN="top" | |
128 >Preface</TD | |
129 ><TD | |
130 WIDTH="34%" | |
131 ALIGN="center" | |
132 VALIGN="top" | |
133 ><A | |
134 HREF="guidepreface.html" | |
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135 ACCESSKEY="U" |
0 | 136 >Up</A |
137 ></TD | |
138 ><TD | |
139 WIDTH="33%" | |
140 ALIGN="right" | |
141 VALIGN="top" | |
142 >Credits</TD | |
143 ></TR | |
144 ></TABLE | |
145 ></DIV | |
146 ></BODY | |
147 ></HTML | |
148 > |