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 #include "SDL_config.h" 23 24 #ifndef __SDL_NTO_AUDIO_H__ 25 #define __SDL_NTO_AUDIO_H__ 26 27 #include <sys/asoundlib.h> 28 29 #include "../SDL_sysaudio.h" 30 31 /* Hidden "this" pointer for the audio functions */ 32 #define _THIS SDL_AudioDevice *this 33 34 struct SDL_PrivateAudioData 35 { 36 /* The audio device handle */ 37 int cardno; 38 int deviceno; 39 snd_pcm_t* audio_handle; 40 41 /* The audio file descriptor */ 42 int audio_fd; 43 44 /* The parent process id, to detect when application quits */ 45 pid_t parent; 46 47 /* Raw mixing buffer */ 48 Uint8* pcm_buf; 49 Uint32 pcm_len; 50 51 /* QSA parameters */ 52 snd_pcm_channel_status_t cstatus; 53 snd_pcm_channel_params_t cparams; 54 snd_pcm_channel_setup_t csetup; 55 }; 56 57 #define cardno (this->hidden->cardno) 58 #define deviceno (this->hidden->deviceno) 59 #define audio_handle (this->hidden->audio_handle) 60 #define audio_fd (this->hidden->audio_fd) 61 #define parent (this->hidden->parent) 62 #define pcm_buf (this->hidden->pcm_buf) 63 #define pcm_len (this->hidden->pcm_len) 64 #define cstatus (this->hidden->cstatus) 65 #define cparams (this->hidden->cparams) 66 #define csetup (this->hidden->csetup) 67 68 #endif /* __SDL_NTO_AUDIO_H__ */ 69