Mercurial > sdl-ios-xcode

view docs/html/sdlcdname.html @ 3899:081aecdb0911 SDL-1.2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
From: Gabriel Gambetta To: SDL Mailing List <sdl@libsdl.org> Date: Fri, 17 Nov 2006 00:39:29 -0200 Subject: [SDL] Alpha blending bug - fixed? It turns out mm5 never got the correct value. This failed : [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (sf->Ashift) ); mm5 got 0xFF000018 instead of 0x00000018. However I did this : Uint32 ashift = sf->Ashift; [...] "movd %1, %%mm5\n\t" : : "m" (amask), "m" (ashift) ); and everything worked fine. The only thing I could find out was that ashift is 32-bit aligned but sf->Ashift isn't: printf("ashift %8X [%d]\n", &ashift, (int)(&ashift) % 4); printf("sf->Ashift %8X [%d]\n", &sf->Ashift, (int)(&sf->Ashift) % 4); ashift at BFF0E0C4 [0] sf->Ashift at 08AFB9CD [1] Could this be the problem? If it is, the fix is extremely trivial. Should I submit a patch? --Gabriel
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 21 Nov 2006 23:17:00 +0000
parents 355632dca928
children
line wrap: on
line source

<HTML
><HEAD
><TITLE
>SDL_CDName</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="CD-ROM"
HREF="cdrom.html"><LINK
REL="PREVIOUS"
TITLE="SDL_CDNumDrives"
HREF="sdlcdnumdrives.html"><LINK
REL="NEXT"
TITLE="SDL_CDOpen"
HREF="sdlcdopen.html"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFF8DC"
TEXT="#000000"
LINK="#0000ee"
VLINK="#551a8b"
ALINK="#ff0000"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>SDL Library Documentation</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="sdlcdnumdrives.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="sdlcdopen.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="SDLCDNAME"
></A
>SDL_CDName</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN7240"
></A
><H2
>Name</H2
>SDL_CDName&nbsp;--&nbsp;Returns a human-readable, system-dependent identifier for the CD-ROM.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN7243"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN7244"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>const char *<B
CLASS="FSFUNC"
>SDL_CDName</B
></CODE
>(int drive);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7250"
></A
><H2
>Description</H2
><P
>Returns a human-readable, system-dependent identifier for the CD-ROM. <TT
CLASS="PARAMETER"
><I
>drive</I
></TT
> is the index of the drive. Drive indices start to 0 and end at <TT
CLASS="FUNCTION"
>SDL_CDNumDrives()</TT
>-1.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7255"
></A
><H2
>Examples</H2
><P
><P
></P
><UL
><LI
><P
>"/dev/cdrom"</P
></LI
><LI
><P
>"E:"</P
></LI
><LI
><P
>"/dev/disk/ide/1/master"</P
></LI
></UL
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN7265"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlcdnumdrives.html"
><TT
CLASS="FUNCTION"
>SDL_CDNumDrives</TT
></A
></P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="sdlcdnumdrives.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="sdlcdopen.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>SDL_CDNumDrives</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="cdrom.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>SDL_CDOpen</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>