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Import SDL 1.2.14 and GLEW 1.5.4.
I am not replacing the following header files used by the Windows build, as I don't have a Windows build setup to test. Please point the Windows build at the header files inside these clean distribution packages and garbage collect the duplicates: GLew/*.h and SDL/Include_1.2. git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5711 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Soren Jorvang
228
Externals/SDL/docs/html/guideaudioexamples.html
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228
Externals/SDL/docs/html/guideaudioexamples.html
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<HTML
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><HEAD
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><TITLE
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>Audio Examples</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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"><LINK
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REL="HOME"
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TITLE="SDL Library Documentation"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Examples"
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HREF="guideexamples.html"><LINK
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REL="PREVIOUS"
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TITLE="Event Examples"
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HREF="guideeventexamples.html"><LINK
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REL="NEXT"
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TITLE="CDROM Examples"
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HREF="guidecdromexamples.html"></HEAD
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><BODY
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CLASS="SECT1"
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BGCOLOR="#FFF8DC"
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TEXT="#000000"
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LINK="#0000ee"
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VLINK="#551a8b"
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ALINK="#ff0000"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>SDL Library Documentation</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="guideeventexamples.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 4. Examples</TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="guidecdromexamples.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="GUIDEAUDIOEXAMPLES"
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></A
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>Audio Examples</H1
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><P
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></P
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN382"
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></A
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>Opening the audio device</H2
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><P
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><PRE
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CLASS="PROGRAMLISTING"
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> SDL_AudioSpec wanted;
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extern void fill_audio(void *udata, Uint8 *stream, int len);
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/* Set the audio format */
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wanted.freq = 22050;
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wanted.format = AUDIO_S16;
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wanted.channels = 2; /* 1 = mono, 2 = stereo */
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wanted.samples = 1024; /* Good low-latency value for callback */
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wanted.callback = fill_audio;
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wanted.userdata = NULL;
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/* Open the audio device, forcing the desired format */
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if ( SDL_OpenAudio(&wanted, NULL) < 0 ) {
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fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError());
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return(-1);
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}
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return(0);</PRE
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></P
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></DIV
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><DIV
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CLASS="SECT2"
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><H2
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CLASS="SECT2"
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><A
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NAME="AEN386"
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></A
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>Playing audio</H2
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><P
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><PRE
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CLASS="PROGRAMLISTING"
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> static Uint8 *audio_chunk;
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static Uint32 audio_len;
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static Uint8 *audio_pos;
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/* The audio function callback takes the following parameters:
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stream: A pointer to the audio buffer to be filled
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len: The length (in bytes) of the audio buffer
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*/
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void fill_audio(void *udata, Uint8 *stream, int len)
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{
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/* Only play if we have data left */
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if ( audio_len == 0 )
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return;
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/* Mix as much data as possible */
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len = ( len > audio_len ? audio_len : len );
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SDL_MixAudio(stream, audio_pos, len, SDL_MIX_MAXVOLUME);
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audio_pos += len;
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audio_len -= len;
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}
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/* Load the audio data ... */
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;;;;;
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audio_pos = audio_chunk;
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/* Let the callback function play the audio chunk */
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SDL_PauseAudio(0);
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/* Do some processing */
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;;;;;
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/* Wait for sound to complete */
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while ( audio_len > 0 ) {
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SDL_Delay(100); /* Sleep 1/10 second */
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}
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SDL_CloseAudio();</PRE
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></P
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></DIV
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="guideeventexamples.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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ACCESSKEY="H"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="guidecdromexamples.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Event Examples</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="guideexamples.html"
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ACCESSKEY="U"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>CDROM Examples</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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>
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