Mercurial > sdl-ios-xcode
annotate docs/html/guideexamples.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 >Examples</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 Guide" | |
14 HREF="guide.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="Handling the Keyboard" | |
17 HREF="guideinputkeyboard.html"><LINK | |
18 REL="NEXT" | |
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19 TITLE="Event Examples" |
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20 HREF="guideeventexamples.html"></HEAD |
0 | 21 ><BODY |
22 CLASS="CHAPTER" | |
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="guideinputkeyboard.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 | |
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62 HREF="guideeventexamples.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="CHAPTER" | |
73 ><H1 | |
74 ><A | |
75 NAME="GUIDEEXAMPLES" | |
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76 ></A |
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77 >Chapter 4. Examples</H1 |
0 | 78 ><DIV |
79 CLASS="TOC" | |
80 ><DL | |
81 ><DT | |
82 ><B | |
83 >Table of Contents</B | |
84 ></DT | |
85 ><DT | |
86 ><A | |
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87 HREF="guideexamples.html#AEN369" |
0 | 88 >Introduction</A |
89 ></DT | |
90 ><DT | |
91 ><A | |
92 HREF="guideeventexamples.html" | |
93 >Event Examples</A | |
94 ></DT | |
95 ><DT | |
96 ><A | |
97 HREF="guideaudioexamples.html" | |
98 >Audio Examples</A | |
99 ></DT | |
100 ><DT | |
101 ><A | |
102 HREF="guidecdromexamples.html" | |
103 >CDROM Examples</A | |
104 ></DT | |
105 ><DT | |
106 ><A | |
107 HREF="guidetimeexamples.html" | |
108 >Time Examples</A | |
109 ></DT | |
110 ></DL | |
111 ></DIV | |
112 ><DIV | |
113 CLASS="SECT1" | |
114 ><H1 | |
115 CLASS="SECT1" | |
116 ><A | |
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117 NAME="AEN369" |
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118 ></A |
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119 >Introduction</H1 |
0 | 120 ><P |
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121 >For the moment these examples are taken directly from the old SDL documentation. By the 1.2 release these examples should hopefully deal with most common SDL programming problems.</P |
0 | 122 ></DIV |
123 ></DIV | |
124 ><DIV | |
125 CLASS="NAVFOOTER" | |
126 ><HR | |
127 ALIGN="LEFT" | |
128 WIDTH="100%"><TABLE | |
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129 SUMMARY="Footer navigation table" |
0 | 130 WIDTH="100%" |
131 BORDER="0" | |
132 CELLPADDING="0" | |
133 CELLSPACING="0" | |
134 ><TR | |
135 ><TD | |
136 WIDTH="33%" | |
137 ALIGN="left" | |
138 VALIGN="top" | |
139 ><A | |
140 HREF="guideinputkeyboard.html" | |
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141 ACCESSKEY="P" |
0 | 142 >Prev</A |
143 ></TD | |
144 ><TD | |
145 WIDTH="34%" | |
146 ALIGN="center" | |
147 VALIGN="top" | |
148 ><A | |
149 HREF="index.html" | |
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150 ACCESSKEY="H" |
0 | 151 >Home</A |
152 ></TD | |
153 ><TD | |
154 WIDTH="33%" | |
155 ALIGN="right" | |
156 VALIGN="top" | |
157 ><A | |
55
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158 HREF="guideeventexamples.html" |
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159 ACCESSKEY="N" |
0 | 160 >Next</A |
161 ></TD | |
162 ></TR | |
163 ><TR | |
164 ><TD | |
165 WIDTH="33%" | |
166 ALIGN="left" | |
167 VALIGN="top" | |
168 >Handling the Keyboard</TD | |
169 ><TD | |
170 WIDTH="34%" | |
171 ALIGN="center" | |
172 VALIGN="top" | |
173 ><A | |
174 HREF="guide.html" | |
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175 ACCESSKEY="U" |
0 | 176 >Up</A |
177 ></TD | |
178 ><TD | |
179 WIDTH="33%" | |
180 ALIGN="right" | |
181 VALIGN="top" | |
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182 >Event Examples</TD |
0 | 183 ></TR |
184 ></TABLE | |
185 ></DIV | |
186 ></BODY | |
187 ></HTML | |
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188 > |