src/audio/mme/SDL_mmeaudio.h
author Sam Lantinga
Tue, 07 Feb 2006 12:15:46 +0000
changeset 1342 d73be99e9420
parent 1341 d02b552e5304
child 1361 19418e4422cb
permissions -rw-r--r--
Fixed it Hayashi Naoyuki's way. :)
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2004 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Library General Public
     7     License as published by the Free Software Foundation; either
     8     version 2 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Library General Public License for more details.
    14 
    15     You should have received a copy of the GNU Library General Public
    16     License along with this library; if not, write to the Free
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 
    23 /* Allow access to a raw mixing buffer */
    24 
    25 #ifndef _SDL_lowaudio_h
    26 #define _SDL_lowaudio_h
    27 #include "SDL_sysaudio.h"
    28 
    29 /* Hidden "this" pointer for the video functions */
    30 #define _THIS	SDL_AudioDevice *this
    31 #define NUM_BUFFERS 2
    32 
    33 struct SharedMem {
    34     HWAVEOUT sound;
    35     WAVEHDR wHdr[NUM_BUFFERS];
    36     PCMWAVEFORMAT wFmt;
    37 };
    38 
    39 struct SDL_PrivateAudioData {
    40     Uint8 *mixbuf;          /* The raw allocated mixing buffer */
    41     struct SharedMem *shm;
    42     int next_buffer;
    43 };
    44 
    45 #define shm			(this->hidden->shm)
    46 #define mixbuf			(this->hidden->mixbuf)
    47 #define next_buffer		(this->hidden->next_buffer)
    48 /* Old variable names */
    49 #endif /* _SDL_lowaudio_h */