Mercurial > sdl-ios-xcode
view src/video/Xext/extensions/panoramiXext.h @ 968:4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
From: Hannu Savolainen
Subject: Re: SDL uses obsolete OSS features
I did some work on getting OSS to work better with SDL. There have been
some problems with select which should be fixed now.
I'm having some problems in understanding what is the purpose of the
DSP_WaitAudio() routine. I added a return to the very beginning of this
routine and commendted out the define for USE_BLOCKING_WRITES. At least
lbreakout2 seems to work as well as earlier. The latencies are the same.
An ordinary blocking write does exactly the same thing than DSP_WaitAudio
does. So I would recommend using the USE_BLOCKING_WRITES approach and
removing everything from the DSP_WaitAudio routine. Also enabling
USE_BLOCKING_WRITES makes it possible to simplify DSP_PlayAudio() because
you don't need to handle the partial writes (the do-while loop).
Attached is a patch against SDL-1.2.7. After these changes SDL will use
OSS as it's designed to be used (make it as simple as possible). This code
should work with all OSS implementations because it uses only the very
fundamental features that have been there since the jurassic times.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 12 Nov 2004 21:39:04 +0000 |
parents | 585a7e1285ae |
children | 782fd950bd46 c121d94672cb |
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/* $Xorg: panoramiXext.h,v 1.4 2000/08/18 04:05:45 coskrey Exp $ */ /***************************************************************** Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of Digital Equipment Corporation shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from Digital Equipment Corporation. ******************************************************************/ /* * PanoramiX definitions */ /* $XFree86: xc/include/extensions/panoramiXext.h,v 3.6 2001/01/17 17:53:22 dawes Exp $ */ #include "SDL_name.h" /* THIS IS NOT AN X PROJECT TEAM SPECIFICATION */ #define PANORAMIX_MAJOR_VERSION 1 /* current version number */ #define PANORAMIX_MINOR_VERSION 1 typedef struct { Window window; /* PanoramiX window - may not exist */ int screen; int State; /* PanroamiXOff, PanoramiXOn */ int width; /* width of this screen */ int height; /* height of this screen */ int ScreenCount; /* real physical number of screens */ XID eventMask; /* selected events for this client */ } SDL_NAME(XPanoramiXInfo); extern SDL_NAME(XPanoramiXInfo) *SDL_NAME(XPanoramiXAllocInfo) ( #if NeedFunctionPrototypes void #endif );