Mercurial > sdl-ios-xcode
annotate docs/html/sdlcreatergbsurfacefrom.html @ 4106:12bb6311fd5d SDL-1.2
Hans de Goede fixed bug #495
When running boswars: http://www.boswars.org/ on a machine with intel
integrathed graphics it crashes when it tries to play the initial theora
splashscreen video:
X Error of failed request: BadAlloc (insufficient resources for operation)
Major opcode of failed request: 140 (XVideo)
Minor opcode of failed request: 19 ()
Serial number of failed request: 25
Current serial number in output stream: 26
boswars: xcb_xlib.c:41: xcb_xlib_lock: Assertion `!c->xlib.lock' failed.
Aborted
I recognized this problem from a few years back, when I encountered it while
working on the Xv blitter for xmame. The problem is that for some reason
creation the Xvport and XvImage succeeds, and failure (lack of resources / hw
capability?) is only indicated during the first XvPut[Shm]Image. I've written a
patch for SDL using the work around for this I developed for xmame (and which
is still used successfully in xmame after many years of usage).
I'll admit it isn't very pretty, but after investigating several possibilities
this was the best option, any other fixes would need changes to the SDL api and
abi.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 29 Dec 2007 02:23:48 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_CreateRGBSurfaceFrom</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_CreateRGBSurface" | |
17 HREF="sdlcreatergbsurface.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_FreeSurface" | |
20 HREF="sdlfreesurface.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="sdlcreatergbsurface.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="sdlfreesurface.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="SDLCREATERGBSURFACEFROM" | |
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74 ></A |
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75 >SDL_CreateRGBSurfaceFrom</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN1856" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_CreateRGBSurfaceFrom -- Create an SDL_Surface from pixel data</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN1859" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN1860" |
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 >SDL_Surface *<B | |
106 CLASS="FSFUNC" | |
107 >SDL_CreateRGBSurfaceFrom</B | |
108 ></CODE | |
109 >(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN1866" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >Creates an SDL_Surface from the provided pixel data.</P | |
124 ><P | |
125 >The data stored in <TT | |
126 CLASS="PARAMETER" | |
127 ><I | |
128 >pixels</I | |
129 ></TT | |
130 > is assumed to be of the <TT | |
131 CLASS="PARAMETER" | |
132 ><I | |
133 >depth</I | |
134 ></TT | |
135 > specified in the parameter list. The pixel data is not copied into the <SPAN | |
136 CLASS="STRUCTNAME" | |
137 >SDL_Surface</SPAN | |
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138 > structure so it should not be freed until the surface has been freed with a called to <A |
0 | 139 HREF="sdlfreesurface.html" |
140 >SDL_FreeSurface</A | |
141 >. <TT | |
142 CLASS="PARAMETER" | |
143 ><I | |
144 >pitch</I | |
145 ></TT | |
146 > is the length of each scanline in bytes. </P | |
147 ><P | |
148 >See <A | |
149 HREF="sdlcreatergbsurface.html" | |
150 ><TT | |
151 CLASS="FUNCTION" | |
152 >SDL_CreateRGBSurface</TT | |
153 ></A | |
154 > for a more detailed description of the other parameters.</P | |
155 ></DIV | |
156 ><DIV | |
157 CLASS="REFSECT1" | |
158 ><A | |
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159 NAME="AEN1878" |
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160 ></A |
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161 ><H2 |
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162 >Return Value</H2 |
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163 ><P |
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164 >Returns the created surface, or <SPAN |
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165 CLASS="RETURNVALUE" |
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166 >NULL</SPAN |
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167 > upon error.</P |
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168 ></DIV |
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169 ><DIV |
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170 CLASS="REFSECT1" |
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171 ><A |
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172 NAME="AEN1882" |
0 | 173 ></A |
174 ><H2 | |
175 >See Also</H2 | |
176 ><P | |
177 ><A | |
178 HREF="sdlcreatergbsurface.html" | |
179 ><TT | |
180 CLASS="FUNCTION" | |
181 >SDL_CreateRGBSurface</TT | |
182 ></A | |
183 >, | |
184 <A | |
185 HREF="sdlfreesurface.html" | |
186 ><TT | |
187 CLASS="FUNCTION" | |
188 >SDL_FreeSurface</TT | |
189 ></A | |
190 ></P | |
191 ></DIV | |
192 ><DIV | |
193 CLASS="NAVFOOTER" | |
194 ><HR | |
195 ALIGN="LEFT" | |
196 WIDTH="100%"><TABLE | |
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197 SUMMARY="Footer navigation table" |
0 | 198 WIDTH="100%" |
199 BORDER="0" | |
200 CELLPADDING="0" | |
201 CELLSPACING="0" | |
202 ><TR | |
203 ><TD | |
204 WIDTH="33%" | |
205 ALIGN="left" | |
206 VALIGN="top" | |
207 ><A | |
208 HREF="sdlcreatergbsurface.html" | |
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209 ACCESSKEY="P" |
0 | 210 >Prev</A |
211 ></TD | |
212 ><TD | |
213 WIDTH="34%" | |
214 ALIGN="center" | |
215 VALIGN="top" | |
216 ><A | |
217 HREF="index.html" | |
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218 ACCESSKEY="H" |
0 | 219 >Home</A |
220 ></TD | |
221 ><TD | |
222 WIDTH="33%" | |
223 ALIGN="right" | |
224 VALIGN="top" | |
225 ><A | |
226 HREF="sdlfreesurface.html" | |
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227 ACCESSKEY="N" |
0 | 228 >Next</A |
229 ></TD | |
230 ></TR | |
231 ><TR | |
232 ><TD | |
233 WIDTH="33%" | |
234 ALIGN="left" | |
235 VALIGN="top" | |
236 >SDL_CreateRGBSurface</TD | |
237 ><TD | |
238 WIDTH="34%" | |
239 ALIGN="center" | |
240 VALIGN="top" | |
241 ><A | |
242 HREF="video.html" | |
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243 ACCESSKEY="U" |
0 | 244 >Up</A |
245 ></TD | |
246 ><TD | |
247 WIDTH="33%" | |
248 ALIGN="right" | |
249 VALIGN="top" | |
250 >SDL_FreeSurface</TD | |
251 ></TR | |
252 ></TABLE | |
253 ></DIV | |
254 ></BODY | |
255 ></HTML | |
256 > |