cannam@124: #ifndef PA_WIN_DS_H
cannam@124: #define PA_WIN_DS_H
cannam@124: /*
cannam@124:  * $Id:  $
cannam@124:  * PortAudio Portable Real-Time Audio Library
cannam@124:  * DirectSound specific extensions
cannam@124:  *
cannam@124:  * Copyright (c) 1999-2007 Ross Bencina and Phil Burk
cannam@124:  *
cannam@124:  * Permission is hereby granted, free of charge, to any person obtaining
cannam@124:  * a copy of this software and associated documentation files
cannam@124:  * (the "Software"), to deal in the Software without restriction,
cannam@124:  * including without limitation the rights to use, copy, modify, merge,
cannam@124:  * publish, distribute, sublicense, and/or sell copies of the Software,
cannam@124:  * and to permit persons to whom the Software is furnished to do so,
cannam@124:  * subject to the following conditions:
cannam@124:  *
cannam@124:  * The above copyright notice and this permission notice shall be
cannam@124:  * included in all copies or substantial portions of the Software.
cannam@124:  *
cannam@124:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
cannam@124:  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
cannam@124:  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
cannam@124:  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
cannam@124:  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
cannam@124:  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
cannam@124:  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
cannam@124:  */
cannam@124: 
cannam@124: /*
cannam@124:  * The text above constitutes the entire PortAudio license; however, 
cannam@124:  * the PortAudio community also makes the following non-binding requests:
cannam@124:  *
cannam@124:  * Any person wishing to distribute modifications to the Software is
cannam@124:  * requested to send the modifications to the original developer so that
cannam@124:  * they can be incorporated into the canonical version. It is also 
cannam@124:  * requested that these non-binding requests be included along with the 
cannam@124:  * license above.
cannam@124:  */
cannam@124: 
cannam@124: /** @file
cannam@124:  @ingroup public_header
cannam@124:  @brief DirectSound-specific PortAudio API extension header file.
cannam@124: */
cannam@124: 
cannam@124: #include "portaudio.h"
cannam@124: #include "pa_win_waveformat.h"
cannam@124: 
cannam@124: #ifdef __cplusplus
cannam@124: extern "C"
cannam@124: {
cannam@124: #endif /* __cplusplus */
cannam@124: 
cannam@124: 
cannam@124: #define paWinDirectSoundUseLowLevelLatencyParameters            (0x01)
cannam@124: #define paWinDirectSoundUseChannelMask                          (0x04)
cannam@124: 
cannam@124: 
cannam@124: typedef struct PaWinDirectSoundStreamInfo{
cannam@124:     unsigned long size;             /**< sizeof(PaWinDirectSoundStreamInfo) */
cannam@124:     PaHostApiTypeId hostApiType;    /**< paDirectSound */
cannam@124:     unsigned long version;          /**< 2 */
cannam@124: 
cannam@124:     unsigned long flags;            /**< enable other features of this struct */
cannam@124: 
cannam@124:     /** 
cannam@124:        low-level latency setting support
cannam@124:        Sets the size of the DirectSound host buffer.
cannam@124:        When flags contains the paWinDirectSoundUseLowLevelLatencyParameters
cannam@124:        this size will be used instead of interpreting the generic latency 
cannam@124:        parameters to Pa_OpenStream(). If the flag is not set this value is ignored.
cannam@124: 
cannam@124:        If the stream is a full duplex stream the implementation requires that
cannam@124:        the values of framesPerBuffer for input and output match (if both are specified).
cannam@124:     */
cannam@124:     unsigned long framesPerBuffer;
cannam@124: 
cannam@124:     /**
cannam@124:         support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
cannam@124:         paWinDirectSoundUseChannelMask this allows you to specify which speakers 
cannam@124:         to address in a multichannel stream. Constants for channelMask
cannam@124:         are specified in pa_win_waveformat.h
cannam@124: 
cannam@124:     */
cannam@124:     PaWinWaveFormatChannelMask channelMask;
cannam@124: 
cannam@124: }PaWinDirectSoundStreamInfo;
cannam@124: 
cannam@124: 
cannam@124: 
cannam@124: #ifdef __cplusplus
cannam@124: }
cannam@124: #endif /* __cplusplus */
cannam@124: 
cannam@124: #endif /* PA_WIN_DS_H */