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annotate src/audio/mme/SDL_mmeaudio.h @ 2328:91e601d9df8b

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re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being fixed is caused by clearing SDL_COPY_RLE_COLORKEY without setting SDL_COPY_RLE_DESIRED in SDL_UnRELSurface.
author Bob Pendleton <bob@pendleton.com>
date Fri, 14 Mar 2008 18:17:49 +0000
parents 5f6550e5184f
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 /* Allow access to a raw mixing buffer */
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26 #ifndef _SDL_mmeaudio_h
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27 #define _SDL_mmeaudio_h
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28
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29 #include "../SDL_sysaudio.h"
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31 /* Hidden "this" pointer for the audio functions */
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32 #define _THIS SDL_AudioDevice *this
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33 #define NUM_BUFFERS 2
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34
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35 struct SharedMem
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36 {
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37 HWAVEOUT sound;
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38 WAVEHDR wHdr[NUM_BUFFERS];
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39 PCMWAVEFORMAT wFmt;
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40 };
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41
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42 struct SDL_PrivateAudioData
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43 {
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44 Uint8 *mixbuf; /* The raw allocated mixing buffer */
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45 struct SharedMem *shm;
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46 int next_buffer;
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47 };
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48
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49 #endif /* _SDL_mmeaudio_h */
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50
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51 /* vi: set ts=4 sw=4 expandtab: */