Mercurial > sdl-ios-xcode

annotate src/video/Xext/extensions/xme.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 caf0328c8058
children 782fd950bd46 c121d94672cb a10bddfdc40f
rev   line source
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1 /*
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2 * Copyright 1993-2001 by Xi Graphics, Inc.
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3 * All Rights Reserved.
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4 *
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5 * Please see the LICENSE file accompanying this distribution for licensing
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6 * information.
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7 *
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8 * Please send any bug fixes and modifications to src@xig.com.
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9 *
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10 * $XiGId: xme.h,v 1.1.1.1 2001/11/19 19:01:10 jon Exp $
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11 *
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12 */
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15 #ifndef _XME_H_INCLUDED
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16 #define _XME_H_INCLUDED
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17
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18 typedef struct {
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19 short x;
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20 short y;
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21 unsigned short w;
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22 unsigned short h;
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23 } XiGMiscViewInfo;
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24
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25 typedef struct {
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26 unsigned short width;
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27 unsigned short height;
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28 int refresh;
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29 } XiGMiscResolutionInfo;
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31 extern Bool XiGMiscQueryVersion(Display *dpy, int *major, int *minor);
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32 extern int XiGMiscQueryViews(Display *dpy, int screen,
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33 XiGMiscViewInfo **pviews);
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34 extern int XiGMiscQueryResolutions(Display *dpy, int screen, int view,
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35 int *pactive,
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36 XiGMiscResolutionInfo **presolutions);
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37 extern void XiGMiscChangeResolution(Display *dpy, int screen, int view,
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38 int width, int height, int refresh);
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39 #endif /* _XME_H_INCLUDED */
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