view src/audio/windib/SDL_dibaudio.h @ 3822:748707e2ddd1 SDL-ryan-multiple-audio-device

Minor NAS tweak.
author Ryan C. Gordon <icculus@icculus.org>
date Sat, 07 Oct 2006 06:17:54 +0000
parents 9dc81c6acaf5
children efdfe292bd88
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

#ifndef _SDL_lowaudio_h
#define _SDL_lowaudio_h

#include "../SDL_sysaudio.h"

/* Hidden "this" pointer for the audio functions */
#define _THIS	SDL_AudioDevice *this

#define NUM_BUFFERS 2           /* -- Don't lower this! */

struct SDL_PrivateAudioData
{
    HWAVEOUT sound;
    HANDLE audio_sem;
    Uint8 *mixbuf;              /* The raw allocated mixing buffer */
    WAVEHDR wavebuf[NUM_BUFFERS];       /* Wave audio fragments */
    int next_buffer;
};

/* Old variable names */
#define sound			(this->hidden->sound)
#define audio_sem 		(this->hidden->audio_sem)
#define mixbuf			(this->hidden->mixbuf)
#define wavebuf			(this->hidden->wavebuf)
#define next_buffer		(this->hidden->next_buffer)

#endif /* _SDL_lowaudio_h */
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