annotate src/audio/dmedia/SDL_irixaudio.h @ 1035:974ba6ae0fa3

Date: Wed, 26 Jan 2005 13:37:09 GMT From: Peter Naulls Subject: RISC OS SDL Patches Sam, I've attached a diff of the latest changes to libSDL for RISC OS support. These changes are by Alan Buckley and myself. The most significant of these are: Optimised assembler blit rountines - I've attached the file src/video/riscos/SDL_riscosASM.s which is needed for this. Move to using /dev/dsp instead of its own audio implementation. This means that src/audio/riscos/SDL_drenderer.c should be removed Typo fixes. Mainly correct spelling of "RISC OS", but some from elsewhere too.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 12 Feb 2005 18:01:31 +0000
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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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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #ifndef _SDL_lowaudio_h
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29 #define _SDL_lowaudio_h
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30
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31 #include <dmedia/audio.h>
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32
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33 #include "SDL_sysaudio.h"
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34
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35 /* Hidden "this" pointer for the audio functions */
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36 #define _THIS SDL_AudioDevice *this
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37
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38 struct SDL_PrivateAudioData {
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39 /* The handle for the audio device */
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40 ALport audio_port;
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41
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42 Uint8 *mixbuf; /* The app mixing buffer */
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43 };
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44
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45 /* Old variable names */
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46 #define audio_port (this->hidden->audio_port)
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47 #define mixbuf (this->hidden->mixbuf)
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48
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49 #endif /* _SDL_lowaudio_h */