Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdplay.html @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 08 Jan 2006 21:18:15 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_CDPlay</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="CD-ROM" | |
| 14 HREF="cdrom.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_CDStatus" | |
| 17 HREF="sdlcdstatus.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_CDPlayTracks" | |
| 20 HREF="sdlcdplaytracks.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="sdlcdstatus.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="sdlcdplaytracks.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="SDLCDPLAY" | |
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74 ></A |
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75 >SDL_CDPlay</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN7343" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDPlay -- Play a CD</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN7346" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN7347" |
| 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_CDPlay</B | |
| 108 ></CODE | |
| 109 >(SDL_CD *cdrom, int start, int length);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN7353" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Plays the given <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >cdrom</I | |
| 127 ></TT | |
| 128 >, starting a frame <TT | |
| 129 CLASS="PARAMETER" | |
| 130 ><I | |
| 131 >start</I | |
| 132 ></TT | |
| 133 > for <TT | |
| 134 CLASS="PARAMETER" | |
| 135 ><I | |
| 136 >length</I | |
| 137 ></TT | |
| 138 > frames.</P | |
| 139 ></DIV | |
| 140 ><DIV | |
| 141 CLASS="REFSECT1" | |
| 142 ><A | |
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143 NAME="AEN7359" |
| 0 | 144 ></A |
| 145 ><H2 | |
| 146 >Return Values</H2 | |
| 147 ><P | |
| 148 >Returns <SPAN | |
| 149 CLASS="RETURNVALUE" | |
| 150 >0</SPAN | |
| 151 > on success, or <SPAN | |
| 152 CLASS="RETURNVALUE" | |
| 153 >-1</SPAN | |
| 154 > on an error.</P | |
| 155 ></DIV | |
| 156 ><DIV | |
| 157 CLASS="REFSECT1" | |
| 158 ><A | |
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159 NAME="AEN7364" |
| 0 | 160 ></A |
| 161 ><H2 | |
| 162 >See Also</H2 | |
| 163 ><P | |
| 164 ><A | |
| 165 HREF="sdlcdplaytracks.html" | |
| 166 ><TT | |
| 167 CLASS="FUNCTION" | |
| 168 >SDL_CDPlayTracks</TT | |
| 169 ></A | |
| 170 >, | |
| 171 <A | |
| 172 HREF="sdlcdstop.html" | |
| 173 ><TT | |
| 174 CLASS="FUNCTION" | |
| 175 >SDL_CDStop</TT | |
| 176 ></A | |
| 177 ></P | |
| 178 ></DIV | |
| 179 ><DIV | |
| 180 CLASS="NAVFOOTER" | |
| 181 ><HR | |
| 182 ALIGN="LEFT" | |
| 183 WIDTH="100%"><TABLE | |
|
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184 SUMMARY="Footer navigation table" |
| 0 | 185 WIDTH="100%" |
| 186 BORDER="0" | |
| 187 CELLPADDING="0" | |
| 188 CELLSPACING="0" | |
| 189 ><TR | |
| 190 ><TD | |
| 191 WIDTH="33%" | |
| 192 ALIGN="left" | |
| 193 VALIGN="top" | |
| 194 ><A | |
| 195 HREF="sdlcdstatus.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
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196 ACCESSKEY="P" |
| 0 | 197 >Prev</A |
| 198 ></TD | |
| 199 ><TD | |
| 200 WIDTH="34%" | |
| 201 ALIGN="center" | |
| 202 VALIGN="top" | |
| 203 ><A | |
| 204 HREF="index.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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205 ACCESSKEY="H" |
| 0 | 206 >Home</A |
| 207 ></TD | |
| 208 ><TD | |
| 209 WIDTH="33%" | |
| 210 ALIGN="right" | |
| 211 VALIGN="top" | |
| 212 ><A | |
| 213 HREF="sdlcdplaytracks.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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214 ACCESSKEY="N" |
| 0 | 215 >Next</A |
| 216 ></TD | |
| 217 ></TR | |
| 218 ><TR | |
| 219 ><TD | |
| 220 WIDTH="33%" | |
| 221 ALIGN="left" | |
| 222 VALIGN="top" | |
| 223 >SDL_CDStatus</TD | |
| 224 ><TD | |
| 225 WIDTH="34%" | |
| 226 ALIGN="center" | |
| 227 VALIGN="top" | |
| 228 ><A | |
| 229 HREF="cdrom.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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230 ACCESSKEY="U" |
| 0 | 231 >Up</A |
| 232 ></TD | |
| 233 ><TD | |
| 234 WIDTH="33%" | |
| 235 ALIGN="right" | |
| 236 VALIGN="top" | |
| 237 >SDL_CDPlayTracks</TD | |
| 238 ></TR | |
| 239 ></TABLE | |
| 240 ></DIV | |
| 241 ></BODY | |
| 242 ></HTML | |
| 243 > |