cannam@89: #ifndef PA_WIN_DS_H
cannam@89: #define PA_WIN_DS_H
cannam@89: /*
cannam@89:  * $Id:  $
cannam@89:  * PortAudio Portable Real-Time Audio Library
cannam@89:  * DirectSound specific extensions
cannam@89:  *
cannam@89:  * Copyright (c) 1999-2007 Ross Bencina and Phil Burk
cannam@89:  *
cannam@89:  * Permission is hereby granted, free of charge, to any person obtaining
cannam@89:  * a copy of this software and associated documentation files
cannam@89:  * (the "Software"), to deal in the Software without restriction,
cannam@89:  * including without limitation the rights to use, copy, modify, merge,
cannam@89:  * publish, distribute, sublicense, and/or sell copies of the Software,
cannam@89:  * and to permit persons to whom the Software is furnished to do so,
cannam@89:  * subject to the following conditions:
cannam@89:  *
cannam@89:  * The above copyright notice and this permission notice shall be
cannam@89:  * included in all copies or substantial portions of the Software.
cannam@89:  *
cannam@89:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
cannam@89:  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
cannam@89:  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
cannam@89:  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
cannam@89:  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
cannam@89:  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
cannam@89:  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
cannam@89:  */
cannam@89: 
cannam@89: /*
cannam@89:  * The text above constitutes the entire PortAudio license; however, 
cannam@89:  * the PortAudio community also makes the following non-binding requests:
cannam@89:  *
cannam@89:  * Any person wishing to distribute modifications to the Software is
cannam@89:  * requested to send the modifications to the original developer so that
cannam@89:  * they can be incorporated into the canonical version. It is also 
cannam@89:  * requested that these non-binding requests be included along with the 
cannam@89:  * license above.
cannam@89:  */
cannam@89: 
cannam@89: /** @file
cannam@89:  @ingroup public_header
cannam@89:  @brief DirectSound-specific PortAudio API extension header file.
cannam@89: */
cannam@89: 
cannam@89: #include "portaudio.h"
cannam@89: #include "pa_win_waveformat.h"
cannam@89: 
cannam@89: #ifdef __cplusplus
cannam@89: extern "C"
cannam@89: {
cannam@89: #endif /* __cplusplus */
cannam@89: 
cannam@89: 
cannam@89: #define paWinDirectSoundUseLowLevelLatencyParameters            (0x01)
cannam@89: #define paWinDirectSoundUseChannelMask                          (0x04)
cannam@89: 
cannam@89: 
cannam@89: typedef struct PaWinDirectSoundStreamInfo{
cannam@89:     unsigned long size;             /**< sizeof(PaWinDirectSoundStreamInfo) */
cannam@89:     PaHostApiTypeId hostApiType;    /**< paDirectSound */
cannam@89:     unsigned long version;          /**< 2 */
cannam@89: 
cannam@89:     unsigned long flags;
cannam@89: 
cannam@89:     /* low-level latency setting support
cannam@89:        Control the size of host buffers in order to set latency. They will 
cannam@89:         be used instead of the generic parameters to Pa_OpenStream() if 
cannam@89:         flags contains the paWinDirectSoundUseLowLevelLatencyParameters
cannam@89:         flag.
cannam@89: 
cannam@89:         If PaWinDirectSoundStreamInfo structures with paWinDirectSoundUseLowLevelLatencyParameters
cannam@89:         are supplied for both input and output in a full duplex stream, then the
cannam@89:         input and output framesPerBuffer must be the same, or the larger of the
cannam@89:         two must be a multiple of the smaller, otherwise a
cannam@89:         paIncompatibleHostApiSpecificStreamInfo error will be returned from
cannam@89:         Pa_OpenStream().
cannam@89:     */
cannam@89:     unsigned long framesPerBuffer;  /* NOT IMPLEMENTED see http://www.portaudio.com/trac/ticket/129 */
cannam@89: 
cannam@89:     /*
cannam@89:         support for WAVEFORMATEXTENSIBLE channel masks. If flags contains
cannam@89:         paWinDirectSoundUseChannelMask this allows you to specify which speakers 
cannam@89:         to address in a multichannel stream. Constants for channelMask
cannam@89:         are specified in pa_win_waveformat.h
cannam@89: 
cannam@89:     */
cannam@89:     PaWinWaveFormatChannelMask channelMask;
cannam@89: 
cannam@89: }PaWinDirectSoundStreamInfo;
cannam@89: 
cannam@89: 
cannam@89: 
cannam@89: #ifdef __cplusplus
cannam@89: }
cannam@89: #endif /* __cplusplus */
cannam@89: 
cannam@89: #endif /* PA_WIN_DS_H */