view docs/html/sdlcdtrack.html @ 1321:e05bc5d315e3

Date: Wed, 1 Feb 2006 18:20:33 -0800 From: Eric Wing Subject: SDL/Universal Binary updates Hi Sam, Attached is a big set of changes to the Xcode projects to support Universal Binaries. I have also included .dmgs that include the prebuilt frameworks. Ryan, I also updated SMPEG which is also in the package. The SDL and smpeg binaries were built against the CVS version (pulled maybe a month ago?). I do not have an Intel Mac to test on so I have no idea if this stuff actually works. However, Christian Walther has been a big help in testing 10.2.8 and 10.3.9 so I'm fairly confident we got the build settings correct for at least PPC. I have attempted to document the important things for producing these Universal Binaries. Documentation is somewhat scattered through out everything, but there is a big centralized piece of documentation in the UniversalBinaryNotes.rtf in the SDL.dmg. As far as Universal Binaries are concerned, the big things were: - Build with gcc 3.3 on PPC, 4.0 on Intel. - We couldn't get any of the MMX/SSE code to compile/link (SDL and smpeg). - All 3rd party dependencies had to be rebuilt as Universal There were also a bunch of non-Universal things that have been updated: - I converted the SDL-satellites to create .dmg's instead of .pkg installers - Updated all 3rd party static libraries with current versions. (I think libpng was the most dramatic going from 1.0.? to 1.2.8 with API breakage. I haven't found any problems so far in doing this.) - Changed some compiler optimization settings - Finally updated the exports list for SDL_mixer - Tried to include a static smpeg in SDL_mixer (multiple build variants in Xcode project now) - Enabled Altivec in SDL (we forgot to add the flags to Xcode last time) - More documentation Since so many things have changed, there might be new problems introduced. The big issue I've found so far is with SDL_mixer. As I mentioned on the mailing list, MP3's produce an assertion failure. And the MikMod problem reported on Bugzilla continues to persist. There's probably a bunch of other stuff I'm forgetting. There really were hundreds of little things I mucked with so it's hard to remember them all. If you have any questions, feel free to ask. Thanks, Eric
author Sam Lantinga <slouken@libsdl.org>
date Thu, 02 Feb 2006 06:26:39 +0000
parents 355632dca928
children
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<HTML
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>SDL_CDtrack</TITLE
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>SDL_CDtrack</H1
><DIV
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><A
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><H2
>Name</H2
>SDL_CDtrack&nbsp;--&nbsp;CD Track Information Structure</DIV
><DIV
CLASS="REFSECT1"
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NAME="AEN7631"
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><H2
>Structure Definition</H2
><PRE
CLASS="PROGRAMLISTING"
>typedef struct{
  Uint8 id;
  Uint8 type;
  Uint32 length;
  Uint32 offset;
} SDL_CDtrack;</PRE
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>Structure Data</H2
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><TT
CLASS="STRUCTFIELD"
><I
>id</I
></TT
></TD
><TD
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VALIGN="TOP"
>Track number (0-99)</TD
></TR
><TR
><TD
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><TT
CLASS="STRUCTFIELD"
><I
>type</I
></TT
></TD
><TD
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><TT
CLASS="LITERAL"
>SDL_AUDIO_TRACK</TT
> or <TT
CLASS="LITERAL"
>SDL_DATA_TRACK</TT
></TD
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><TR
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><TT
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><I
>length</I
></TT
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>Length, in frames, of this track</TD
></TR
><TR
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><TT
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><I
>offset</I
></TT
></TD
><TD
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>Frame offset to the beginning of this track</TD
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><H2
>Description</H2
><P
><SPAN
CLASS="STRUCTNAME"
>SDL_CDtrack</SPAN
> stores data on each track on a CD, its fields should be pretty self explainatory. It is a member a the <A
HREF="sdlcd.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_CD</SPAN
></A
> structure.</P
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><B
>Note: </B
>Frames can be converted to standard timings. There are <TT
CLASS="LITERAL"
>CD_FPS</TT
> frames per second, so <SPAN
CLASS="STRUCTNAME"
>SDL_CDtrack</SPAN
>.<TT
CLASS="STRUCTFIELD"
><I
>length</I
></TT
>/<TT
CLASS="LITERAL"
>CD_FPS</TT
>=length_in_seconds.</P
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