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annotate src/video/Xext/Xv/Xvlibint.h @ 865:92615154bb68

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Date: Sun, 29 Feb 2004 15:14:22 +0200 From: Martin_Storsj Subject: Dynamic loading of ALSA I recently discovered that SDL can dynamically load ESD and aRts, and made a patch which adds this same functionality to ALSA. The update for configure.in isn't too good (it should e.g. look for libasound.so in other directories than /usr/lib), because I'm not too good at shellscripting and autoconf. The reason for using dlfcn.h and dlopen instead of SDL_LoadLibrary and SDL_LoadFunction is that libasound uses versioned symbols, and it is necessary to load the correct version using dlvsym. This isn't probably any real portability issue, because ALSA is linux-only.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 02 Mar 2004 12:49:16 +0000
parents eadc0746dfaf
children 045f186426e1
rev   line source
292
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1 /***********************************************************
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2 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
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3 and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Digital or MIT not be
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12 used in advertising or publicity pertaining to distribution of the
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13 software without specific, written prior permission.
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14
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15 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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16 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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17 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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18 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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19 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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20 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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21 SOFTWARE.
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22
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23 ******************************************************************/
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24 /* $XFree86: xc/lib/Xv/Xvlibint.h,v 1.5 2001/07/25 15:04:53 dawes Exp $ */
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25
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26 #ifndef XVLIBINT_H
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27 #define XVLIBINT_H
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28 /*
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29 ** File:
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30 **
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31 ** Xvlibint.h --- Xv library internal header file
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32 **
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33 ** Author:
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34 **
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35 ** David Carver (Digital Workstation Engineering/Project Athena)
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36 **
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37 ** Revisions:
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38 **
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39 ** 01.24.91 Carver
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40 ** - version 1.4 upgrade
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41 **
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42 */
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43
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44 #define NEED_REPLIES
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45
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46 #include <X11/Xlibint.h>
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47 #include "Xvproto.h"
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48 #include "Xvlib.h"
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49
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50 #if !defined(UNIXCPP)
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51 #define XvGetReq(name, req) \
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52 WORD64ALIGN\
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53 if ((dpy->bufptr + SIZEOF(xv##name##Req)) > dpy->bufmax)\
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54 _XFlush(dpy);\
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55 req = (xv##name##Req *)(dpy->last_req = dpy->bufptr);\
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56 req->reqType = info->codes->major_opcode;\
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57 req->xvReqType = xv_##name; \
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58 req->length = (SIZEOF(xv##name##Req))>>2;\
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59 dpy->bufptr += SIZEOF(xv##name##Req);\
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60 dpy->request++
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61
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62 #else /* non-ANSI C uses empty comment instead of "##" for token concatenation */
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63 #define XvGetReq(name, req) \
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64 WORD64ALIGN\
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65 if ((dpy->bufptr + SIZEOF(xv/**/name/**/Req)) > dpy->bufmax)\
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66 _XFlush(dpy);\
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67 req = (xv/**/name/**/Req *)(dpy->last_req = dpy->bufptr);\
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68 req->reqType = info->codes->major_opcode;\
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69 req->xvReqType = xv_/**/name;\
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70 req->length = (SIZEOF(xv/**/name/**/Req))>>2;\
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71 dpy->bufptr += SIZEOF(xv/**/name/**/Req);\
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72 dpy->request++
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73 #endif
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74
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75
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76 #endif /* XVLIBINT_H */