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
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******************************************************************/
/*  
 *	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
);