Chris@39: #ifndef PA_WIN_DS_H
Chris@39: #define PA_WIN_DS_H
Chris@39: /*
Chris@39:  * $Id:  $
Chris@39:  * PortAudio Portable Real-Time Audio Library
Chris@39:  * DirectSound specific extensions
Chris@39:  *
Chris@39:  * Copyright (c) 1999-2007 Ross Bencina and Phil Burk
Chris@39:  *
Chris@39:  * Permission is hereby granted, free of charge, to any person obtaining
Chris@39:  * a copy of this software and associated documentation files
Chris@39:  * (the "Software"), to deal in the Software without restriction,
Chris@39:  * including without limitation the rights to use, copy, modify, merge,
Chris@39:  * publish, distribute, sublicense, and/or sell copies of the Software,
Chris@39:  * and to permit persons to whom the Software is furnished to do so,
Chris@39:  * subject to the following conditions:
Chris@39:  *
Chris@39:  * The above copyright notice and this permission notice shall be
Chris@39:  * included in all copies or substantial portions of the Software.
Chris@39:  *
Chris@39:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Chris@39:  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Chris@39:  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
Chris@39:  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
Chris@39:  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
Chris@39:  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Chris@39:  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Chris@39:  */
Chris@39: 
Chris@39: /*
Chris@39:  * The text above constitutes the entire PortAudio license; however, 
Chris@39:  * the PortAudio community also makes the following non-binding requests:
Chris@39:  *
Chris@39:  * Any person wishing to distribute modifications to the Software is
Chris@39:  * requested to send the modifications to the original developer so that
Chris@39:  * they can be incorporated into the canonical version. It is also 
Chris@39:  * requested that these non-binding requests be included along with the 
Chris@39:  * license above.
Chris@39:  */
Chris@39: 
Chris@39: /** @file
Chris@39:  @ingroup public_header
Chris@39:  @brief DirectSound-specific PortAudio API extension header file.
Chris@39: */
Chris@39: 
Chris@39: #include "portaudio.h"
Chris@39: #include "pa_win_waveformat.h"
Chris@39: 
Chris@39: #ifdef __cplusplus
Chris@39: extern "C"
Chris@39: {
Chris@39: #endif /* __cplusplus */
Chris@39: 
Chris@39: 
Chris@39: #define paWinDirectSoundUseLowLevelLatencyParameters            (0x01)
Chris@39: #define paWinDirectSoundUseChannelMask                          (0x04)
Chris@39: 
Chris@39: 
Chris@39: typedef struct PaWinDirectSoundStreamInfo{
Chris@39:     unsigned long size;             /**< sizeof(PaWinDirectSoundStreamInfo) */
Chris@39:     PaHostApiTypeId hostApiType;    /**< paDirectSound */
Chris@39:     unsigned long version;          /**< 2 */
Chris@39: 
Chris@39:     unsigned long flags;            /**< enable other features of this struct */
Chris@39: 
Chris@39:     /** 
Chris@39:        low-level latency setting support
Chris@39:        Sets the size of the DirectSound host buffer.
Chris@39:        When flags contains the paWinDirectSoundUseLowLevelLatencyParameters
Chris@39:        this size will be used instead of interpreting the generic latency 
Chris@39:        parameters to Pa_OpenStream(). If the flag is not set this value is ignored.
Chris@39: 
Chris@39:        If the stream is a full duplex stream the implementation requires that
Chris@39:        the values of framesPerBuffer for input and output match (if both are specified).
Chris@39:     */
Chris@39:     unsigned long framesPerBuffer;
Chris@39: 
Chris@39:     /**
Chris@39:         support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
Chris@39:         paWinDirectSoundUseChannelMask this allows you to specify which speakers 
Chris@39:         to address in a multichannel stream. Constants for channelMask
Chris@39:         are specified in pa_win_waveformat.h
Chris@39: 
Chris@39:     */
Chris@39:     PaWinWaveFormatChannelMask channelMask;
Chris@39: 
Chris@39: }PaWinDirectSoundStreamInfo;
Chris@39: 
Chris@39: 
Chris@39: 
Chris@39: #ifdef __cplusplus
Chris@39: }
Chris@39: #endif /* __cplusplus */
Chris@39: 
Chris@39: #endif /* PA_WIN_DS_H */