Mercurial > sdl-ios-xcode

annotate src/video/Xext/extensions/panoramiXext.h @ 3880:74e828c64315 SDL-1.2

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Fixed bug #292 I might be on crack here. It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and right channels of a stereo stream together, and clamps the new mono channel if it would overflow. Shouldn't it be dividing by 2 to average the two sample points instead of clamping? Otherwise the mono sample point's volume doubles in the conversion. This would also make the conversion faster, as it replaces two branches per sample frame with a bitwise shift. --ryan.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Sep 2006 15:45:37 +0000
parents 585a7e1285ae
children 782fd950bd46 c121d94672cb
rev   line source
292
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1 /* $Xorg: panoramiXext.h,v 1.4 2000/08/18 04:05:45 coskrey Exp $ */
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2 /*****************************************************************
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3 Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
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4 Permission is hereby granted, free of charge, to any person obtaining a copy
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5 of this software and associated documentation files (the "Software"), to deal
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6 in the Software without restriction, including without limitation the rights
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7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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8 copies of the Software.
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9
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10 The above copyright notice and this permission notice shall be included in
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11 all copies or substantial portions of the Software.
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12
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13 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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16 DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
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17 BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
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18 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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19 IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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20
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21 Except as contained in this notice, the name of Digital Equipment Corporation
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22 shall not be used in advertising or otherwise to promote the sale, use or other
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23 dealings in this Software without prior written authorization from Digital
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24 Equipment Corporation.
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25 ******************************************************************/
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26 /*
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27 * PanoramiX definitions
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28 */
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29 /* $XFree86: xc/include/extensions/panoramiXext.h,v 3.6 2001/01/17 17:53:22 dawes Exp $ */
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30
293
585a7e1285ae *** empty log message ***
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31 #include "SDL_name.h"
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32
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33 /* THIS IS NOT AN X PROJECT TEAM SPECIFICATION */
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34
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35 #define PANORAMIX_MAJOR_VERSION 1 /* current version number */
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36 #define PANORAMIX_MINOR_VERSION 1
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37
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38 typedef struct {
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39 Window window; /* PanoramiX window - may not exist */
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40 int screen;
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41 int State; /* PanroamiXOff, PanoramiXOn */
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42 int width; /* width of this screen */
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43 int height; /* height of this screen */
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44 int ScreenCount; /* real physical number of screens */
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45 XID eventMask; /* selected events for this client */
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46 } SDL_NAME(XPanoramiXInfo);
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47
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48 extern SDL_NAME(XPanoramiXInfo) *SDL_NAME(XPanoramiXAllocInfo) (
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49 #if NeedFunctionPrototypes
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50 void
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51 #endif
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52 );