Mercurial > sdl-ios-xcode

annotate src/audio/dummy/SDL_dummyaudio.c @ 5004:0c72ae7b7cb2

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Added native atomic operations for Windows, Mac OS X, and gcc compiler intrinsics. Changed the CAS return value to bool, so it's efficient with OSAtomicCompareAndSwap32Barrier() Added an atomic test adapted from code by Michael Davidsaver
author Sam Lantinga <slouken@libsdl.org>
date Sun, 16 Jan 2011 15:16:39 -0800
parents 4160ba33b597
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21
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60620d71e324 Corrected dummy audio callback firing to be realistic, cleaned up tabs.
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22 This file written by Ryan C. Gordon (icculus@icculus.org)
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23 */
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24 #include "SDL_config.h"
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25
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38c1eb6b0083 By default all the real targets have dummy audio/video and disk audio.
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26 /* Output audio to nowhere... */
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27
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28 #include "SDL_audio.h"
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29 #include "../SDL_audio_c.h"
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30 #include "SDL_dummyaudio.h"
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31
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32 static int
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33 DUMMYAUD_OpenDevice(_THIS, const char *devname, int iscapture)
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34 {
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35 return 1; /* always succeeds. */
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36 }
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37
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38 static int
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39 DUMMYAUD_Init(SDL_AudioDriverImpl * impl)
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40 {
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41 /* Set the function pointers */
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42 impl->OpenDevice = DUMMYAUD_OpenDevice;
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43 impl->OnlyHasDefaultOutputDevice = 1;
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44 return 1; /* this audio target is available. */
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45 }
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46
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47 AudioBootStrap DUMMYAUD_bootstrap = {
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48 "dummy", "SDL dummy audio driver", DUMMYAUD_Init, 1
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49 };
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50
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51 /* vi: set ts=4 sw=4 expandtab: */