docs.html
author Sam Lantinga <slouken@libsdl.org>
Sun, 08 Jul 2007 20:38:36 +0000
branchSDL-1.2
changeset 4021 cbad710a6509
parent 4011 f5794774970d
child 4025 3ee8c808638b
permissions -rw-r--r--
Fixed bug #437

Some X servers advertise the DGA extension don't support DGA1 anymore.
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<HTML>
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<HEAD><TITLE>SDL Stable Release</TITLE></HEAD>
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<BODY BGCOLOR="#FFEBCD" TEXT="#000000">
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<IMG SRC="docs/images/rainbow.gif" ALT="[separator]" WIDTH="100%">
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<P>
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This source is stable, and is fully tested on all supported platforms.<br>
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Please send bug reports or questions to the SDL mailing list:<br>
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<a href="http://www.libsdl.org/mailing-list.php"
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        >http://www.libsdl.org/mailing-list.php</a><br>
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The latest stable release may be found on the
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	<a href="http://www.libsdl.org/">SDL website</A>.
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</P>
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<H2> <A HREF="docs/index.html">API Documentation</A> </H2>
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<H2> SDL 1.2.12 Release Notes </H2>
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<P>
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SDL 1.2.12 is a minor bug fix release.
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</P>
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<H3> General Notes </H3>
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<BLOCKQUOTE>
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<P>
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	Added support for the PulseAudio sound server: http://www.pulseaudio.org/
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</P>
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<P>
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	Added SDL_VIDEO_ALLOW_SCREENSAVER to override SDL's disabling of the screensaver on Mac OS X, Windows, and X11.
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</P>
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<P>
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	Fixed buffer overrun crash when resampling audio rates.
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</P>
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<P>
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	Fixed audio bug where converting to mono was doubling the volume.
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</P>
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<P>
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	Fixed off-by-one error in the C implementation of SDL_revcpy()
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</P>
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<P>
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	Fixed compiling with Sun Studio.
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</P>
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<P>
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	Support for AmigaOS has been removed from the main SDL code.
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</P>
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<P>
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	Support for Nokia 9210 "EPOC" driver has been removed from the main SDL code.
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</P>
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<P>
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	Unofficial support for the S60/SymbianOS platform has been added.
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</P>
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<P>
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	Unofficial support for the Nintendo DS platform has been added.
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</P>
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<P>
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	Audio callbacks must now initialize the entire stream: applications must write silence to the stream if they can't supply data, and not mix against the buffer, as it may be random data.
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	Users may set SDL_AUDIO_MUST_INIT_BUFFERS to retain the old behaviour, but apps should not depend on this environment variable: just add a memset() at the start of your audio callback instead if you need it.
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</P>
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</BLOCKQUOTE>
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<H3> Unix Notes </H3>
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<BLOCKQUOTE>
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<P>
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	Fixed detection of X11 DGA mouse support.
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</P>
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<P>
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	Improved XIM support for asian character sets.
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</P>
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<P>
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	The GFX_Display has been added to the X11 window information in SDL_syswm.h.
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</P>
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<P>
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	Fixed PAGE_SIZE compile error in the fbcon video driver on newer Linux kernels.
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</P>
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<P>
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	Fixed hang or crash at startup if aRts can't access the hardware.
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</P>
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<P>
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	Fixed relative mouse mode when the cursor starts outside the X11 window.
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</P>
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<P>
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	Fixed accidental free of stack memory in X11 mouse acceleration code.
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</P>
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<P>
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	Closed minor memory leak in XME code.
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</P>
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</BLOCKQUOTE>
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<H3> Windows Notes </H3>
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<BLOCKQUOTE>
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<P>
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	The GDI video driver makes better use of the palette in 8-bit modes.
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</P>
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<P>
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	The windib driver now supports more mouse buttons with WM_XBUTTON events.
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</P>
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<P>
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	Added support for UTF-8 window titles on Windows.
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</P>
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<P>
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	Fixed joystick detection on Windows.
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</P>
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<P>
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	Fixed HBITMAP leak in GAPI driver.
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</P>
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</BLOCKQUOTE>
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<H3> Mac OS X Notes </H3>
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<BLOCKQUOTE>
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<P>
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	Added support for multi-axis controllers like 3Dconnxion's SpaceNavigator on Mac OS X.
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</P>
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<P>
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	Fixed YUV overlay crash inside Quicktime on Intel Mac OS X.
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</P>
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<P>
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	Fixed blitting alignment in Altivec alpha blit functions.
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</P>
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<P>
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	Keys F13, F14, and F15 are now usable on Apple keyboards under Mac OS X.
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</P>
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<P>
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	Fixed joystick calibration code on Mac OS X.
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</P>
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<P>
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	Fixed mouse jitter when multiple motion events are queued up in Mac OS X.
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</P>
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</BLOCKQUOTE>
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<H3> Mac OS Classic Notes </H3>
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<BLOCKQUOTE>
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<P>
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	Added support for gamma ramps to both toolbox and DrawSprocket video drivers.
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</P>
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</BLOCKQUOTE>
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<H3> BeOS Notes </H3>
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<BLOCKQUOTE>
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<P>
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	Implemented mouse grabbing and mouse relative mode on BeOS.
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</P>
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</BLOCKQUOTE>
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<IMG SRC="docs/images/rainbow.gif" ALT="[separator]" WIDTH="100%">
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<H2> SDL 1.2.11 Release Notes </H2>
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<P>
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SDL 1.2.11 is a minor bug fix release.
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</P>
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<H3> Unix Notes </H3>
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<BLOCKQUOTE>
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<P>
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	Dynamic X11 loading is only enabled with gcc 4 supporting -fvisibility=hidden.  This fixes crashes related to symbol collisions, and allows building on Solaris and IRIX.
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</P>
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<P>
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	Fixed building SDL with Xinerama disabled.
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</P>
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<P>
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	Fixed DRI OpenGL library loading, using RTLD_GLOBAL in dlopen().
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</P>
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<P>
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	Added pkgconfig configuration support.
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</P>
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</BLOCKQUOTE>
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<H3> Windows Notes </H3>
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<BLOCKQUOTE>
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<P>
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	Setting SDL_GL_SWAP_CONTROL now works with Windows OpenGL.
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</P>
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<P>
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	The Win32 window positioning code works properly for windows with menus.
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</P>
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<P>
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	DirectSound audio quality has been improved on certain sound cards.
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</P>
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<P>
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	Fixed 5.1 audio channel ordering on Windows and Mac OS X.
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</P>
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<P>
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	Plugged a couple of minor memory leaks in the windib video driver.
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</P>
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<P>
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	Fixed type collision with stdint.h when building with gcc on Win32.
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</P>
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<P>
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	Fixed building with the Digital Mars Compiler on Win32.
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</P>
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</BLOCKQUOTE>
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<H3> Mac OS X Notes </H3>
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<BLOCKQUOTE>
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<P>
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	The Quartz video driver supports 32x32 cursors on Mac OS X 10.3 and above.
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</P>
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</BLOCKQUOTE>
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<IMG SRC="docs/images/rainbow.gif" ALT="[separator]" WIDTH="100%">
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<H2> SDL 1.2.10 Release Notes </H2>
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<P>
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SDL 1.2.10 is a major release, featuring a revamp of the build system and many API improvements and bug fixes.
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</P>
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<H3> API enhancements </H3>
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<UL>
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<LI>
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	If SDL_OpenAudio() is passed zero for the desired format
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	fields, the following environment variables will be used
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	to fill them in:
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<pre><code>
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		SDL_AUDIO_FREQUENCY
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		SDL_AUDIO_FORMAT
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		SDL_AUDIO_CHANNELS
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		SDL_AUDIO_SAMPLES
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</code></pre>
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	If an environment variable is not specified, it will be set
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	to a reasonable default value.
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<LI>
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	SDL_SetVideoMode() now accepts 0 for width or height and will use
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	the current video mode (or the desktop mode if no mode has been set.)
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<LI>
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	Added current_w and current_h to the SDL_VideoInfo structure,
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	which is set to the desktop resolution during video intialization,
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	and then set to the current resolution when a video mode is set.
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<LI>
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	SDL_GL_LoadLibrary() will load the system default OpenGL library
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	if it is passed NULL as a parameter.
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<LI>
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	Added SDL_GL_SWAP_CONTROL to wait for vsync in OpenGL applications.
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<LI>
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	Added SDL_GL_ACCELERATED_VISUAL to guarantee hardware acceleration.
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<LI>
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	SDL_WM_SetCaption() now officially takes UTF-8 title and icon strings, and displays international characters on supported platforms.
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<LI>
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	Added SDL_GetKeyRepeat() to query the key repeat settings.
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<LI>
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	Added the "dummy" audio driver, which can be used to emulate audio
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	output without a sound card.
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<LI>
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	Added SDL_config.h, with defaults for various build environments.
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</UL>
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<H3> General Notes </H3>
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<BLOCKQUOTE>
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<P>
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	The SDL website now has an <A HREF="http://www.libsdl.org/rss/rss.xml">RSS feed</A>!
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<P>
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	The SDL development source code is now managed with <A HREF="http://www.libsdl.org/svn.php">Subversion</A>.
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<P>
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	SDL now uses the Bugzilla <A HREF="http://bugzilla.libsdl.org/">bug tracking system</A>, hosted by icculus.org.
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<P>
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	SDL is licensed under version 2.1 of the GNU Lesser General Public License.
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<P>
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	The entire build system has been revamped to make it much more portable, including versions of C library functions to make it possible to run SDL on a minimal embedded environment.  See README.Porting in the SDL source distribution for information on how to port SDL to a new platform.
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<P>
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	SDL_opengl.h has been updated with the latest glext.h from <A HREF="http://oss.sgi.com/projects/ogl-sample/registry/">http://oss.sgi.com/projects/ogl-sample/registry/</A>
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<P>
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	Alex Volkov contributed highly optimized RGB <-> RGBA blitters.
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</BLOCKQUOTE>
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<H3> Unix Notes </H3>
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<BLOCKQUOTE>
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<P>
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	The X11 libraries are dynamically loaded at runtime by default.  This allows the distributed version of SDL to run on systems without X11 libraries installed.
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<P>
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	The XiG XME extension code is now included in the X11 video driver by default.
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<P>
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	XRandR support for video mode switching has been added to the X11 driver, but is disabled because of undesired interactions with window managers.  You can enable this by setting the environment variable SDL_VIDEO_X11_XRANDR to 1.
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<P>
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	Xinerama multi-head displays are properly handled now, and the SDL_VIDEO_FULLSCREEN_HEAD environment variable can be used to select the screen used for fullscreen video modes.  Note that changing the video modes only works on screen 0.
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<P>
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	XVidMode video modes are now sorted so they maintain the refresh rates specified in the X11 configuration file.
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<P>
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	SDL windows are no longer transparent in X11 compositing systems like XGL.
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<P>
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	The mouse is properly released by the X11 video driver if the fullscreen window loses focus.
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<P>
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	The X11 input driver now uses XIM to handle international input.
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<P>
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	The screensaver and DPMS monitor blanking are disabled while SDL games are running under the X11 and DGA video drivers.  This behavior will be formalized and selectable in SDL 1.3.
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<P>
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	Fixed a bug preventing stereo OpenGL contexts from being selected on the X11 driver.
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<P>
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	The DGA video driver now waits for pending blits involving surfaces before they are freed.  This prevents display oddities when using SDL_DisplayFormat() to convert many images.
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<P>
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	The framebuffer console video driver now has a parser for /etc/fb.modes for improved video mode handling.
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<P>
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	The framebuffer console video driver now allows asynchronous VT switching, and restores the full contents of the screen when switched back.
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<P>
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	The framebuffer console now uses CTRL-ALT-FN to switch virtual terminals, to avoid collisions with application key bindings.
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<P>
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	The framebuffer console input driver correctly sets IMPS/2 mode for wheel mice.  It also properly detects when gpm is in IMPS/2 protocol mode, or passing raw protocol from an IMPS/2 mouse.
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<P>
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	The SVGAlib video driver now has support for banked (non-linear) video modes.
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<P>
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	A video driver for OpenBSD on the Sharp Zaurus has been contributed by Staffan Ulfberg.  See the file README.wscons in the SDL source distribution for details.
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<P>
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	Many patches have been incorporated from *BSD ports.
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</BLOCKQUOTE>
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<H3> Windows Notes </H3>
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<BLOCKQUOTE>
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<P>
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	The "windib" video driver is the default now, to prevent problems with certain laptops, 64-bit Windows, and Windows Vista.  The DirectX driver is still available, and can be selected by setting the environment variable SDL_VIDEODRIVER to "directx".
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<P>
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	SDL has been ported to 64-bit Windows.
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<P>
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	Dmitry Yakimov contributed a GAPI video driver for Windows CE.
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<P>
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	The default fullscreen refresh rate has been increased to match the desktop refresh rate, when using equivalent resolutions.  A full API for querying and selecting refresh rates is planned for SDL 1.3.
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<P>
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	Dialog boxes are now shown when SDL is in windowed OpenGL mode.
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<P>
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	The SDL window is recreated when necessary to maintain OpenGL context attributes, when switching between windowed and fullscreen modes.
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<P>
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	An SDL_VIDEORESIZE event is properly sent when the SDL window is maximized and restored.
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<P>
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	Window positions are retained when switching between fullscreen and windowed modes.
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<P>
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	ToUnicode() is used, when available, for improved handling of international keyboard input.
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<P>
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	The PrtScrn is now treated normally with both key down and key up events.
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<P>
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	Pressing ALT-F4 now delivers an SDL_QUIT event to SDL applications.
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<P>
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	Joystick names are now correct for joysticks which have been unplugged and then plugged back in since booting.
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<P>
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	An MCI error when playing the last track on a CD-ROM has been fixed.
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<P>
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	OpenWatcom projects for building SDL have been provided by Marc Peter.
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</BLOCKQUOTE>
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<H3> Mac OS X Notes </H3>
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<BLOCKQUOTE>
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<P>
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	SDL now supports building Universal binaries, both through Xcode projects and when using configure/make.  See README.MacOSX in the SDL source archive for details.
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<P>
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	The X11 video driver with GLX support can be built on Mac OS X, if the X11 development SDK is installed.
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	Transitions between fullscreen resolutions and windowed mode now use a much faster asynchronous fade to hide desktop flicker.
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	Icons set with SDL_WM_SetIcon() now have the proper colors on Intel Macs.
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</BLOCKQUOTE>
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<H3> OS/2 Notes </H3>
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	Projects for building SDL on OS/2 with OpenWatcom have been contributed by Doodle.  See the file README.OS2 in the SDL source distribution for details.
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</BLOCKQUOTE>
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