annotate src/audio/SDL_mixer_m68k.h @ 4347:38f22ed3a433 SDL-1.2

Option to fix bug #851 For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 17 Oct 2009 06:55:17 +0000
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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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22 #include "SDL_config.h"
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23
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24 /*
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25 m68k assembly mix routines
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26
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27 Patrice Mandin
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28 */
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29
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30 #if defined(__M68000__) && defined(__GNUC__)
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31 void SDL_MixAudio_m68k_U8(char* dst,char* src, long len, long volume, char* mix8);
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32 void SDL_MixAudio_m68k_S8(char* dst,char* src, long len, long volume);
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33
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34 void SDL_MixAudio_m68k_S16MSB(short* dst,short* src, long len, long volume);
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35 void SDL_MixAudio_m68k_S16LSB(short* dst,short* src, long len, long volume);
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36 #endif