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/*
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* QEMU DirectSound audio driver
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*
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* Copyright (c) 2005 Vassili Karpov (malc)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/*
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* SEAL 1.07 by Carlos 'pel' Hasan was used as documentation
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*/
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#include "qemu-common.h" |
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#include "audio.h" |
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#define AUDIO_CAP "dsound" |
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#include "audio_int.h" |
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#include <windows.h> |
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#include <mmsystem.h> |
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#include <objbase.h> |
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#include <dsound.h> |
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/* #define DEBUG_DSOUND */
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static struct { |
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int lock_retries;
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int restore_retries;
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int getstatus_retries;
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int set_primary;
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int bufsize_in;
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int bufsize_out;
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struct audsettings settings;
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int latency_millis;
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} conf = { |
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.lock_retries = 1,
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.restore_retries = 1,
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.getstatus_retries = 1,
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.set_primary = 0,
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.bufsize_in = 16384,
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.bufsize_out = 16384,
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.settings.freq = 44100,
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.settings.nchannels = 2,
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.settings.fmt = AUD_FMT_S16 |
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.latency_millis = 10
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}; |
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|
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typedef struct { |
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LPDIRECTSOUND dsound; |
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LPDIRECTSOUNDCAPTURE dsound_capture; |
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LPDIRECTSOUNDBUFFER dsound_primary_buffer; |
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struct audsettings settings;
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} dsound; |
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static dsound glob_dsound;
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typedef struct { |
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HWVoiceOut hw; |
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LPDIRECTSOUNDBUFFER dsound_buffer; |
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DWORD old_pos; |
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int first_time;
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#ifdef DEBUG_DSOUND
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DWORD old_ppos; |
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DWORD played; |
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DWORD mixed; |
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#endif
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} DSoundVoiceOut; |
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|
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typedef struct { |
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HWVoiceIn hw; |
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int first_time;
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LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer; |
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} DSoundVoiceIn; |
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static void dsound_log_hresult (HRESULT hr) |
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{ |
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const char *str = "BUG"; |
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switch (hr) {
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case DS_OK:
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str = "The method succeeded";
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break;
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#ifdef DS_NO_VIRTUALIZATION
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case DS_NO_VIRTUALIZATION:
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str = "The buffer was created, but another 3D algorithm was substituted";
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break;
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#endif
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#ifdef DS_INCOMPLETE
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case DS_INCOMPLETE:
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str = "The method succeeded, but not all the optional effects were obtained";
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break;
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#endif
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#ifdef DSERR_ACCESSDENIED
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case DSERR_ACCESSDENIED:
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str = "The request failed because access was denied";
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break;
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#endif
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#ifdef DSERR_ALLOCATED
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case DSERR_ALLOCATED:
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str = "The request failed because resources, such as a priority level, were already in use by another caller";
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break;
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#endif
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#ifdef DSERR_ALREADYINITIALIZED
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case DSERR_ALREADYINITIALIZED:
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str = "The object is already initialized";
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break;
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#endif
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#ifdef DSERR_BADFORMAT
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case DSERR_BADFORMAT:
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str = "The specified wave format is not supported";
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break;
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#endif
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#ifdef DSERR_BADSENDBUFFERGUID
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case DSERR_BADSENDBUFFERGUID:
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str = "The GUID specified in an audiopath file does not match a valid mix-in buffer";
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break;
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#endif
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#ifdef DSERR_BUFFERLOST
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case DSERR_BUFFERLOST:
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str = "The buffer memory has been lost and must be restored";
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break;
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#endif
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#ifdef DSERR_BUFFERTOOSMALL
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case DSERR_BUFFERTOOSMALL:
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str = "The buffer size is not great enough to enable effects processing";
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break;
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#endif
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#ifdef DSERR_CONTROLUNAVAIL
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case DSERR_CONTROLUNAVAIL:
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str = "The buffer control (volume, pan, and so on) requested by the caller is not available. Controls must be specified when the buffer is created, using the dwFlags member of DSBUFFERDESC";
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break;
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#endif
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#ifdef DSERR_DS8_REQUIRED
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case DSERR_DS8_REQUIRED:
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str = "A DirectSound object of class CLSID_DirectSound8 or later is required for the requested functionality. For more information, see IDirectSound8 Interface";
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break;
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#endif
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#ifdef DSERR_FXUNAVAILABLE
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case DSERR_FXUNAVAILABLE:
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str = "The effects requested could not be found on the system, or they are in the wrong order or in the wrong location; for example, an effect expected in hardware was found in software";
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break;
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#endif
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#ifdef DSERR_GENERIC
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case DSERR_GENERIC :
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str = "An undetermined error occurred inside the DirectSound subsystem";
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break;
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#endif
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#ifdef DSERR_INVALIDCALL
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case DSERR_INVALIDCALL:
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str = "This function is not valid for the current state of this object";
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break;
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#endif
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#ifdef DSERR_INVALIDPARAM
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case DSERR_INVALIDPARAM:
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str = "An invalid parameter was passed to the returning function";
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break;
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#endif
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#ifdef DSERR_NOAGGREGATION
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case DSERR_NOAGGREGATION:
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str = "The object does not support aggregation";
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break;
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#endif
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#ifdef DSERR_NODRIVER
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case DSERR_NODRIVER:
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str = "No sound driver is available for use, or the given GUID is not a valid DirectSound device ID";
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break;
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#endif
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#ifdef DSERR_NOINTERFACE
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case DSERR_NOINTERFACE:
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str = "The requested COM interface is not available";
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break;
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#endif
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#ifdef DSERR_OBJECTNOTFOUND
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case DSERR_OBJECTNOTFOUND:
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str = "The requested object was not found";
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break;
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#endif
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#ifdef DSERR_OTHERAPPHASPRIO
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case DSERR_OTHERAPPHASPRIO:
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str = "Another application has a higher priority level, preventing this call from succeeding";
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break;
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#endif
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#ifdef DSERR_OUTOFMEMORY
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case DSERR_OUTOFMEMORY:
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str = "The DirectSound subsystem could not allocate sufficient memory to complete the caller's request";
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break;
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#endif
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#ifdef DSERR_PRIOLEVELNEEDED
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case DSERR_PRIOLEVELNEEDED:
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str = "A cooperative level of DSSCL_PRIORITY or higher is required";
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break;
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#endif
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#ifdef DSERR_SENDLOOP
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case DSERR_SENDLOOP:
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str = "A circular loop of send effects was detected";
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break;
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#endif
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#ifdef DSERR_UNINITIALIZED
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case DSERR_UNINITIALIZED:
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str = "The Initialize method has not been called or has not been called successfully before other methods were called";
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break;
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#endif
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#ifdef DSERR_UNSUPPORTED
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case DSERR_UNSUPPORTED:
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str = "The function called is not supported at this time";
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break;
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#endif
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default:
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AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT %#lx)\n", hr);
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return;
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} |
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AUD_log (AUDIO_CAP, "Reason: %s\n", str);
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} |
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static void GCC_FMT_ATTR (2, 3) dsound_logerr ( |
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HRESULT hr, |
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const char *fmt, |
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... |
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) |
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{ |
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va_list ap; |
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va_start (ap, fmt); |
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AUD_vlog (AUDIO_CAP, fmt, ap); |
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va_end (ap); |
243 |
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dsound_log_hresult (hr); |
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} |
246 |
|
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static void GCC_FMT_ATTR (3, 4) dsound_logerr2 ( |
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HRESULT hr, |
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const char *typ, |
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const char *fmt, |
251 |
... |
252 |
) |
253 |
{ |
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va_list ap; |
255 |
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AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
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va_start (ap, fmt); |
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AUD_vlog (AUDIO_CAP, fmt, ap); |
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va_end (ap); |
260 |
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dsound_log_hresult (hr); |
262 |
} |
263 |
|
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static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis) |
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{ |
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return (millis * info->bytes_per_second) / 1000; |
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} |
268 |
|
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#ifdef DEBUG_DSOUND
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static void print_wave_format (WAVEFORMATEX *wfx) |
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{ |
272 |
dolog ("tag = %d\n", wfx->wFormatTag);
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dolog ("nChannels = %d\n", wfx->nChannels);
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dolog ("nSamplesPerSec = %ld\n", wfx->nSamplesPerSec);
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dolog ("nAvgBytesPerSec = %ld\n", wfx->nAvgBytesPerSec);
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dolog ("nBlockAlign = %d\n", wfx->nBlockAlign);
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dolog ("wBitsPerSample = %d\n", wfx->wBitsPerSample);
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dolog ("cbSize = %d\n", wfx->cbSize);
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} |
280 |
#endif
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281 |
|
282 |
static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb) |
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{ |
284 |
HRESULT hr; |
285 |
int i;
|
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|
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for (i = 0; i < conf.restore_retries; ++i) { |
288 |
hr = IDirectSoundBuffer_Restore (dsb); |
289 |
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switch (hr) {
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case DS_OK:
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return 0; |
293 |
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294 |
case DSERR_BUFFERLOST:
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continue;
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296 |
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297 |
default:
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dsound_logerr (hr, "Could not restore playback buffer\n");
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return -1; |
300 |
} |
301 |
} |
302 |
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dolog ("%d attempts to restore playback buffer failed\n", i);
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return -1; |
305 |
} |
306 |
|
307 |
static int waveformat_from_audio_settings (WAVEFORMATEX *wfx, |
308 |
struct audsettings *as)
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{ |
310 |
memset (wfx, 0, sizeof (*wfx)); |
311 |
|
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wfx->wFormatTag = WAVE_FORMAT_PCM; |
313 |
wfx->nChannels = as->nchannels; |
314 |
wfx->nSamplesPerSec = as->freq; |
315 |
wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
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316 |
wfx->nBlockAlign = 1 << (as->nchannels == 2); |
317 |
wfx->cbSize = 0;
|
318 |
|
319 |
switch (as->fmt) {
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320 |
case AUD_FMT_S8:
|
321 |
case AUD_FMT_U8:
|
322 |
wfx->wBitsPerSample = 8;
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323 |
break;
|
324 |
|
325 |
case AUD_FMT_S16:
|
326 |
case AUD_FMT_U16:
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327 |
wfx->wBitsPerSample = 16;
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328 |
wfx->nAvgBytesPerSec <<= 1;
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329 |
wfx->nBlockAlign <<= 1;
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330 |
break;
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331 |
|
332 |
case AUD_FMT_S32:
|
333 |
case AUD_FMT_U32:
|
334 |
wfx->wBitsPerSample = 32;
|
335 |
wfx->nAvgBytesPerSec <<= 2;
|
336 |
wfx->nBlockAlign <<= 2;
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337 |
break;
|
338 |
|
339 |
default:
|
340 |
dolog ("Internal logic error: Bad audio format %d\n", as->freq);
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341 |
return -1; |
342 |
} |
343 |
|
344 |
return 0; |
345 |
} |
346 |
|
347 |
static int waveformat_to_audio_settings (WAVEFORMATEX *wfx, |
348 |
struct audsettings *as)
|
349 |
{ |
350 |
if (wfx->wFormatTag != WAVE_FORMAT_PCM) {
|
351 |
dolog ("Invalid wave format, tag is not PCM, but %d\n",
|
352 |
wfx->wFormatTag); |
353 |
return -1; |
354 |
} |
355 |
|
356 |
if (!wfx->nSamplesPerSec) {
|
357 |
dolog ("Invalid wave format, frequency is zero\n");
|
358 |
return -1; |
359 |
} |
360 |
as->freq = wfx->nSamplesPerSec; |
361 |
|
362 |
switch (wfx->nChannels) {
|
363 |
case 1: |
364 |
as->nchannels = 1;
|
365 |
break;
|
366 |
|
367 |
case 2: |
368 |
as->nchannels = 2;
|
369 |
break;
|
370 |
|
371 |
default:
|
372 |
dolog ( |
373 |
"Invalid wave format, number of channels is not 1 or 2, but %d\n",
|
374 |
wfx->nChannels |
375 |
); |
376 |
return -1; |
377 |
} |
378 |
|
379 |
switch (wfx->wBitsPerSample) {
|
380 |
case 8: |
381 |
as->fmt = AUD_FMT_U8; |
382 |
break;
|
383 |
|
384 |
case 16: |
385 |
as->fmt = AUD_FMT_S16; |
386 |
break;
|
387 |
|
388 |
case 32: |
389 |
as->fmt = AUD_FMT_S32; |
390 |
break;
|
391 |
|
392 |
default:
|
393 |
dolog ("Invalid wave format, bits per sample is not "
|
394 |
"8, 16 or 32, but %d\n",
|
395 |
wfx->wBitsPerSample); |
396 |
return -1; |
397 |
} |
398 |
|
399 |
return 0; |
400 |
} |
401 |
|
402 |
#include "dsound_template.h" |
403 |
#define DSBTYPE_IN
|
404 |
#include "dsound_template.h" |
405 |
#undef DSBTYPE_IN
|
406 |
|
407 |
static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp) |
408 |
{ |
409 |
HRESULT hr; |
410 |
int i;
|
411 |
|
412 |
for (i = 0; i < conf.getstatus_retries; ++i) { |
413 |
hr = IDirectSoundBuffer_GetStatus (dsb, statusp); |
414 |
if (FAILED (hr)) {
|
415 |
dsound_logerr (hr, "Could not get playback buffer status\n");
|
416 |
return -1; |
417 |
} |
418 |
|
419 |
if (*statusp & DSERR_BUFFERLOST) {
|
420 |
if (dsound_restore_out (dsb)) {
|
421 |
return -1; |
422 |
} |
423 |
continue;
|
424 |
} |
425 |
break;
|
426 |
} |
427 |
|
428 |
return 0; |
429 |
} |
430 |
|
431 |
static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb, |
432 |
DWORD *statusp) |
433 |
{ |
434 |
HRESULT hr; |
435 |
|
436 |
hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp); |
437 |
if (FAILED (hr)) {
|
438 |
dsound_logerr (hr, "Could not get capture buffer status\n");
|
439 |
return -1; |
440 |
} |
441 |
|
442 |
return 0; |
443 |
} |
444 |
|
445 |
static void dsound_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len) |
446 |
{ |
447 |
int src_len1 = dst_len;
|
448 |
int src_len2 = 0; |
449 |
int pos = hw->rpos + dst_len;
|
450 |
struct st_sample *src1 = hw->mix_buf + hw->rpos;
|
451 |
struct st_sample *src2 = NULL; |
452 |
|
453 |
if (pos > hw->samples) {
|
454 |
src_len1 = hw->samples - hw->rpos; |
455 |
src2 = hw->mix_buf; |
456 |
src_len2 = dst_len - src_len1; |
457 |
pos = src_len2; |
458 |
} |
459 |
|
460 |
if (src_len1) {
|
461 |
hw->clip (dst, src1, src_len1); |
462 |
} |
463 |
|
464 |
if (src_len2) {
|
465 |
dst = advance (dst, src_len1 << hw->info.shift); |
466 |
hw->clip (dst, src2, src_len2); |
467 |
} |
468 |
|
469 |
hw->rpos = pos % hw->samples; |
470 |
} |
471 |
|
472 |
static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb) |
473 |
{ |
474 |
int err;
|
475 |
LPVOID p1, p2; |
476 |
DWORD blen1, blen2, len1, len2; |
477 |
|
478 |
err = dsound_lock_out ( |
479 |
dsb, |
480 |
&hw->info, |
481 |
0,
|
482 |
hw->samples << hw->info.shift, |
483 |
&p1, &p2, |
484 |
&blen1, &blen2, |
485 |
1
|
486 |
); |
487 |
if (err) {
|
488 |
return;
|
489 |
} |
490 |
|
491 |
len1 = blen1 >> hw->info.shift; |
492 |
len2 = blen2 >> hw->info.shift; |
493 |
|
494 |
#ifdef DEBUG_DSOUND
|
495 |
dolog ("clear %p,%ld,%ld %p,%ld,%ld\n",
|
496 |
p1, blen1, len1, |
497 |
p2, blen2, len2); |
498 |
#endif
|
499 |
|
500 |
if (p1 && len1) {
|
501 |
audio_pcm_info_clear_buf (&hw->info, p1, len1); |
502 |
} |
503 |
|
504 |
if (p2 && len2) {
|
505 |
audio_pcm_info_clear_buf (&hw->info, p2, len2); |
506 |
} |
507 |
|
508 |
dsound_unlock_out (dsb, p1, p2, blen1, blen2); |
509 |
} |
510 |
|
511 |
static void dsound_close (dsound *s) |
512 |
{ |
513 |
HRESULT hr; |
514 |
|
515 |
if (s->dsound_primary_buffer) {
|
516 |
hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer); |
517 |
if (FAILED (hr)) {
|
518 |
dsound_logerr (hr, "Could not release primary buffer\n");
|
519 |
} |
520 |
s->dsound_primary_buffer = NULL;
|
521 |
} |
522 |
} |
523 |
|
524 |
static int dsound_open (dsound *s) |
525 |
{ |
526 |
int err;
|
527 |
HRESULT hr; |
528 |
WAVEFORMATEX wfx; |
529 |
DSBUFFERDESC dsbd; |
530 |
HWND hwnd; |
531 |
|
532 |
hwnd = GetForegroundWindow (); |
533 |
hr = IDirectSound_SetCooperativeLevel ( |
534 |
s->dsound, |
535 |
hwnd, |
536 |
DSSCL_PRIORITY |
537 |
); |
538 |
|
539 |
if (FAILED (hr)) {
|
540 |
dsound_logerr (hr, "Could not set cooperative level for window %p\n",
|
541 |
hwnd); |
542 |
return -1; |
543 |
} |
544 |
|
545 |
if (!conf.set_primary) {
|
546 |
return 0; |
547 |
} |
548 |
|
549 |
err = waveformat_from_audio_settings (&wfx, &conf.settings); |
550 |
if (err) {
|
551 |
return -1; |
552 |
} |
553 |
|
554 |
memset (&dsbd, 0, sizeof (dsbd)); |
555 |
dsbd.dwSize = sizeof (dsbd);
|
556 |
dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER; |
557 |
dsbd.dwBufferBytes = 0;
|
558 |
dsbd.lpwfxFormat = NULL;
|
559 |
|
560 |
hr = IDirectSound_CreateSoundBuffer ( |
561 |
s->dsound, |
562 |
&dsbd, |
563 |
&s->dsound_primary_buffer, |
564 |
NULL
|
565 |
); |
566 |
if (FAILED (hr)) {
|
567 |
dsound_logerr (hr, "Could not create primary playback buffer\n");
|
568 |
return -1; |
569 |
} |
570 |
|
571 |
hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx); |
572 |
if (FAILED (hr)) {
|
573 |
dsound_logerr (hr, "Could not set primary playback buffer format\n");
|
574 |
} |
575 |
|
576 |
hr = IDirectSoundBuffer_GetFormat ( |
577 |
s->dsound_primary_buffer, |
578 |
&wfx, |
579 |
sizeof (wfx),
|
580 |
NULL
|
581 |
); |
582 |
if (FAILED (hr)) {
|
583 |
dsound_logerr (hr, "Could not get primary playback buffer format\n");
|
584 |
goto fail0;
|
585 |
} |
586 |
|
587 |
#ifdef DEBUG_DSOUND
|
588 |
dolog ("Primary\n");
|
589 |
print_wave_format (&wfx); |
590 |
#endif
|
591 |
|
592 |
err = waveformat_to_audio_settings (&wfx, &s->settings); |
593 |
if (err) {
|
594 |
goto fail0;
|
595 |
} |
596 |
|
597 |
return 0; |
598 |
|
599 |
fail0:
|
600 |
dsound_close (s); |
601 |
return -1; |
602 |
} |
603 |
|
604 |
static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...) |
605 |
{ |
606 |
HRESULT hr; |
607 |
DWORD status; |
608 |
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; |
609 |
LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; |
610 |
|
611 |
if (!dsb) {
|
612 |
dolog ("Attempt to control voice without a buffer\n");
|
613 |
return 0; |
614 |
} |
615 |
|
616 |
switch (cmd) {
|
617 |
case VOICE_ENABLE:
|
618 |
if (dsound_get_status_out (dsb, &status)) {
|
619 |
return -1; |
620 |
} |
621 |
|
622 |
if (status & DSBSTATUS_PLAYING) {
|
623 |
dolog ("warning: Voice is already playing\n");
|
624 |
return 0; |
625 |
} |
626 |
|
627 |
dsound_clear_sample (hw, dsb); |
628 |
|
629 |
hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING); |
630 |
if (FAILED (hr)) {
|
631 |
dsound_logerr (hr, "Could not start playing buffer\n");
|
632 |
return -1; |
633 |
} |
634 |
break;
|
635 |
|
636 |
case VOICE_DISABLE:
|
637 |
if (dsound_get_status_out (dsb, &status)) {
|
638 |
return -1; |
639 |
} |
640 |
|
641 |
if (status & DSBSTATUS_PLAYING) {
|
642 |
hr = IDirectSoundBuffer_Stop (dsb); |
643 |
if (FAILED (hr)) {
|
644 |
dsound_logerr (hr, "Could not stop playing buffer\n");
|
645 |
return -1; |
646 |
} |
647 |
} |
648 |
else {
|
649 |
dolog ("warning: Voice is not playing\n");
|
650 |
} |
651 |
break;
|
652 |
} |
653 |
return 0; |
654 |
} |
655 |
|
656 |
static int dsound_write (SWVoiceOut *sw, void *buf, int len) |
657 |
{ |
658 |
return audio_pcm_sw_write (sw, buf, len);
|
659 |
} |
660 |
|
661 |
static int dsound_run_out (HWVoiceOut *hw) |
662 |
{ |
663 |
int err;
|
664 |
HRESULT hr; |
665 |
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; |
666 |
LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; |
667 |
int live, len, hwshift;
|
668 |
DWORD blen1, blen2; |
669 |
DWORD len1, len2; |
670 |
DWORD decr; |
671 |
DWORD wpos, ppos, old_pos; |
672 |
LPVOID p1, p2; |
673 |
int bufsize;
|
674 |
|
675 |
if (!dsb) {
|
676 |
dolog ("Attempt to run empty with playback buffer\n");
|
677 |
return 0; |
678 |
} |
679 |
|
680 |
hwshift = hw->info.shift; |
681 |
bufsize = hw->samples << hwshift; |
682 |
|
683 |
live = audio_pcm_hw_get_live_out (hw); |
684 |
|
685 |
hr = IDirectSoundBuffer_GetCurrentPosition ( |
686 |
dsb, |
687 |
&ppos, |
688 |
ds->first_time ? &wpos : NULL
|
689 |
); |
690 |
if (FAILED (hr)) {
|
691 |
dsound_logerr (hr, "Could not get playback buffer position\n");
|
692 |
return 0; |
693 |
} |
694 |
|
695 |
len = live << hwshift; |
696 |
|
697 |
if (ds->first_time) {
|
698 |
if (conf.latency_millis) {
|
699 |
DWORD cur_blat; |
700 |
|
701 |
cur_blat = audio_ring_dist (wpos, ppos, bufsize); |
702 |
ds->first_time = 0;
|
703 |
old_pos = wpos; |
704 |
old_pos += |
705 |
millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat; |
706 |
old_pos %= bufsize; |
707 |
old_pos &= ~hw->info.align; |
708 |
} |
709 |
else {
|
710 |
old_pos = wpos; |
711 |
} |
712 |
#ifdef DEBUG_DSOUND
|
713 |
ds->played = 0;
|
714 |
ds->mixed = 0;
|
715 |
#endif
|
716 |
} |
717 |
else {
|
718 |
if (ds->old_pos == ppos) {
|
719 |
#ifdef DEBUG_DSOUND
|
720 |
dolog ("old_pos == ppos\n");
|
721 |
#endif
|
722 |
return 0; |
723 |
} |
724 |
|
725 |
#ifdef DEBUG_DSOUND
|
726 |
ds->played += audio_ring_dist (ds->old_pos, ppos, hw->bufsize); |
727 |
#endif
|
728 |
old_pos = ds->old_pos; |
729 |
} |
730 |
|
731 |
if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
|
732 |
len = ppos - old_pos; |
733 |
} |
734 |
else {
|
735 |
if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) {
|
736 |
len = bufsize - old_pos + ppos; |
737 |
} |
738 |
} |
739 |
|
740 |
if (audio_bug (AUDIO_FUNC, len < 0 || len > bufsize)) { |
741 |
dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n",
|
742 |
len, bufsize, old_pos, ppos); |
743 |
return 0; |
744 |
} |
745 |
|
746 |
len &= ~hw->info.align; |
747 |
if (!len) {
|
748 |
return 0; |
749 |
} |
750 |
|
751 |
#ifdef DEBUG_DSOUND
|
752 |
ds->old_ppos = ppos; |
753 |
#endif
|
754 |
err = dsound_lock_out ( |
755 |
dsb, |
756 |
&hw->info, |
757 |
old_pos, |
758 |
len, |
759 |
&p1, &p2, |
760 |
&blen1, &blen2, |
761 |
0
|
762 |
); |
763 |
if (err) {
|
764 |
return 0; |
765 |
} |
766 |
|
767 |
len1 = blen1 >> hwshift; |
768 |
len2 = blen2 >> hwshift; |
769 |
decr = len1 + len2; |
770 |
|
771 |
if (p1 && len1) {
|
772 |
dsound_write_sample (hw, p1, len1); |
773 |
} |
774 |
|
775 |
if (p2 && len2) {
|
776 |
dsound_write_sample (hw, p2, len2); |
777 |
} |
778 |
|
779 |
dsound_unlock_out (dsb, p1, p2, blen1, blen2); |
780 |
ds->old_pos = (old_pos + (decr << hwshift)) % bufsize; |
781 |
|
782 |
#ifdef DEBUG_DSOUND
|
783 |
ds->mixed += decr << hwshift; |
784 |
|
785 |
dolog ("played %lu mixed %lu diff %ld sec %f\n",
|
786 |
ds->played, |
787 |
ds->mixed, |
788 |
ds->mixed - ds->played, |
789 |
abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second);
|
790 |
#endif
|
791 |
return decr;
|
792 |
} |
793 |
|
794 |
static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...) |
795 |
{ |
796 |
HRESULT hr; |
797 |
DWORD status; |
798 |
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; |
799 |
LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer; |
800 |
|
801 |
if (!dscb) {
|
802 |
dolog ("Attempt to control capture voice without a buffer\n");
|
803 |
return -1; |
804 |
} |
805 |
|
806 |
switch (cmd) {
|
807 |
case VOICE_ENABLE:
|
808 |
if (dsound_get_status_in (dscb, &status)) {
|
809 |
return -1; |
810 |
} |
811 |
|
812 |
if (status & DSCBSTATUS_CAPTURING) {
|
813 |
dolog ("warning: Voice is already capturing\n");
|
814 |
return 0; |
815 |
} |
816 |
|
817 |
/* clear ?? */
|
818 |
|
819 |
hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING); |
820 |
if (FAILED (hr)) {
|
821 |
dsound_logerr (hr, "Could not start capturing\n");
|
822 |
return -1; |
823 |
} |
824 |
break;
|
825 |
|
826 |
case VOICE_DISABLE:
|
827 |
if (dsound_get_status_in (dscb, &status)) {
|
828 |
return -1; |
829 |
} |
830 |
|
831 |
if (status & DSCBSTATUS_CAPTURING) {
|
832 |
hr = IDirectSoundCaptureBuffer_Stop (dscb); |
833 |
if (FAILED (hr)) {
|
834 |
dsound_logerr (hr, "Could not stop capturing\n");
|
835 |
return -1; |
836 |
} |
837 |
} |
838 |
else {
|
839 |
dolog ("warning: Voice is not capturing\n");
|
840 |
} |
841 |
break;
|
842 |
} |
843 |
return 0; |
844 |
} |
845 |
|
846 |
static int dsound_read (SWVoiceIn *sw, void *buf, int len) |
847 |
{ |
848 |
return audio_pcm_sw_read (sw, buf, len);
|
849 |
} |
850 |
|
851 |
static int dsound_run_in (HWVoiceIn *hw) |
852 |
{ |
853 |
int err;
|
854 |
HRESULT hr; |
855 |
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; |
856 |
LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer; |
857 |
int live, len, dead;
|
858 |
DWORD blen1, blen2; |
859 |
DWORD len1, len2; |
860 |
DWORD decr; |
861 |
DWORD cpos, rpos; |
862 |
LPVOID p1, p2; |
863 |
int hwshift;
|
864 |
|
865 |
if (!dscb) {
|
866 |
dolog ("Attempt to run without capture buffer\n");
|
867 |
return 0; |
868 |
} |
869 |
|
870 |
hwshift = hw->info.shift; |
871 |
|
872 |
live = audio_pcm_hw_get_live_in (hw); |
873 |
dead = hw->samples - live; |
874 |
if (!dead) {
|
875 |
return 0; |
876 |
} |
877 |
|
878 |
hr = IDirectSoundCaptureBuffer_GetCurrentPosition ( |
879 |
dscb, |
880 |
&cpos, |
881 |
ds->first_time ? &rpos : NULL
|
882 |
); |
883 |
if (FAILED (hr)) {
|
884 |
dsound_logerr (hr, "Could not get capture buffer position\n");
|
885 |
return 0; |
886 |
} |
887 |
|
888 |
if (ds->first_time) {
|
889 |
ds->first_time = 0;
|
890 |
if (rpos & hw->info.align) {
|
891 |
ldebug ("warning: Misaligned capture read position %ld(%d)\n",
|
892 |
rpos, hw->info.align); |
893 |
} |
894 |
hw->wpos = rpos >> hwshift; |
895 |
} |
896 |
|
897 |
if (cpos & hw->info.align) {
|
898 |
ldebug ("warning: Misaligned capture position %ld(%d)\n",
|
899 |
cpos, hw->info.align); |
900 |
} |
901 |
cpos >>= hwshift; |
902 |
|
903 |
len = audio_ring_dist (cpos, hw->wpos, hw->samples); |
904 |
if (!len) {
|
905 |
return 0; |
906 |
} |
907 |
len = audio_MIN (len, dead); |
908 |
|
909 |
err = dsound_lock_in ( |
910 |
dscb, |
911 |
&hw->info, |
912 |
hw->wpos << hwshift, |
913 |
len << hwshift, |
914 |
&p1, |
915 |
&p2, |
916 |
&blen1, |
917 |
&blen2, |
918 |
0
|
919 |
); |
920 |
if (err) {
|
921 |
return 0; |
922 |
} |
923 |
|
924 |
len1 = blen1 >> hwshift; |
925 |
len2 = blen2 >> hwshift; |
926 |
decr = len1 + len2; |
927 |
|
928 |
if (p1 && len1) {
|
929 |
hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume); |
930 |
} |
931 |
|
932 |
if (p2 && len2) {
|
933 |
hw->conv (hw->conv_buf, p2, len2, &nominal_volume); |
934 |
} |
935 |
|
936 |
dsound_unlock_in (dscb, p1, p2, blen1, blen2); |
937 |
hw->wpos = (hw->wpos + decr) % hw->samples; |
938 |
return decr;
|
939 |
} |
940 |
|
941 |
static void dsound_audio_fini (void *opaque) |
942 |
{ |
943 |
HRESULT hr; |
944 |
dsound *s = opaque; |
945 |
|
946 |
if (!s->dsound) {
|
947 |
return;
|
948 |
} |
949 |
|
950 |
hr = IDirectSound_Release (s->dsound); |
951 |
if (FAILED (hr)) {
|
952 |
dsound_logerr (hr, "Could not release DirectSound\n");
|
953 |
} |
954 |
s->dsound = NULL;
|
955 |
|
956 |
if (!s->dsound_capture) {
|
957 |
return;
|
958 |
} |
959 |
|
960 |
hr = IDirectSoundCapture_Release (s->dsound_capture); |
961 |
if (FAILED (hr)) {
|
962 |
dsound_logerr (hr, "Could not release DirectSoundCapture\n");
|
963 |
} |
964 |
s->dsound_capture = NULL;
|
965 |
} |
966 |
|
967 |
static void *dsound_audio_init (void) |
968 |
{ |
969 |
int err;
|
970 |
HRESULT hr; |
971 |
dsound *s = &glob_dsound; |
972 |
|
973 |
hr = CoInitialize (NULL);
|
974 |
if (FAILED (hr)) {
|
975 |
dsound_logerr (hr, "Could not initialize COM\n");
|
976 |
return NULL; |
977 |
} |
978 |
|
979 |
hr = CoCreateInstance ( |
980 |
&CLSID_DirectSound, |
981 |
NULL,
|
982 |
CLSCTX_ALL, |
983 |
&IID_IDirectSound, |
984 |
(void **) &s->dsound
|
985 |
); |
986 |
if (FAILED (hr)) {
|
987 |
dsound_logerr (hr, "Could not create DirectSound instance\n");
|
988 |
return NULL; |
989 |
} |
990 |
|
991 |
hr = IDirectSound_Initialize (s->dsound, NULL);
|
992 |
if (FAILED (hr)) {
|
993 |
dsound_logerr (hr, "Could not initialize DirectSound\n");
|
994 |
|
995 |
hr = IDirectSound_Release (s->dsound); |
996 |
if (FAILED (hr)) {
|
997 |
dsound_logerr (hr, "Could not release DirectSound\n");
|
998 |
} |
999 |
s->dsound = NULL;
|
1000 |
return NULL; |
1001 |
} |
1002 |
|
1003 |
hr = CoCreateInstance ( |
1004 |
&CLSID_DirectSoundCapture, |
1005 |
NULL,
|
1006 |
CLSCTX_ALL, |
1007 |
&IID_IDirectSoundCapture, |
1008 |
(void **) &s->dsound_capture
|
1009 |
); |
1010 |
if (FAILED (hr)) {
|
1011 |
dsound_logerr (hr, "Could not create DirectSoundCapture instance\n");
|
1012 |
} |
1013 |
else {
|
1014 |
hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL);
|
1015 |
if (FAILED (hr)) {
|
1016 |
dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
|
1017 |
|
1018 |
hr = IDirectSoundCapture_Release (s->dsound_capture); |
1019 |
if (FAILED (hr)) {
|
1020 |
dsound_logerr (hr, "Could not release DirectSoundCapture\n");
|
1021 |
} |
1022 |
s->dsound_capture = NULL;
|
1023 |
} |
1024 |
} |
1025 |
|
1026 |
err = dsound_open (s); |
1027 |
if (err) {
|
1028 |
dsound_audio_fini (s); |
1029 |
return NULL; |
1030 |
} |
1031 |
|
1032 |
return s;
|
1033 |
} |
1034 |
|
1035 |
static struct audio_option dsound_options[] = { |
1036 |
{ |
1037 |
.name = "LOCK_RETRIES",
|
1038 |
.tag = AUD_OPT_INT, |
1039 |
.valp = &conf.lock_retries, |
1040 |
.descr = "Number of times to attempt locking the buffer"
|
1041 |
}, |
1042 |
{ |
1043 |
.name = "RESTOURE_RETRIES",
|
1044 |
.tag = AUD_OPT_INT, |
1045 |
.valp = &conf.restore_retries, |
1046 |
.descr = "Number of times to attempt restoring the buffer"
|
1047 |
}, |
1048 |
{ |
1049 |
.name = "GETSTATUS_RETRIES",
|
1050 |
.tag = AUD_OPT_INT, |
1051 |
.valp = &conf.getstatus_retries, |
1052 |
.descr = "Number of times to attempt getting status of the buffer"
|
1053 |
}, |
1054 |
{ |
1055 |
.name = "SET_PRIMARY",
|
1056 |
.tag = AUD_OPT_BOOL, |
1057 |
.valp = &conf.set_primary |
1058 |
.descr = "Set the parameters of primary buffer"
|
1059 |
}, |
1060 |
{ |
1061 |
.name = "LATENCY_MILLIS",
|
1062 |
.tag = AUD_OPT_INT, |
1063 |
.valp = &conf.latency_millis, |
1064 |
.descr = "(undocumented)"
|
1065 |
}, |
1066 |
{ |
1067 |
.name = "PRIMARY_FREQ",
|
1068 |
.tag = AUD_OPT_INT, |
1069 |
.valp = &conf.settings.freq, |
1070 |
.descr = "Primary buffer frequency"
|
1071 |
}, |
1072 |
{ |
1073 |
.name = "PRIMARY_CHANNELS",
|
1074 |
.tag = AUD_OPT_INT, |
1075 |
.valp = &conf.settings.nchannels, |
1076 |
.descr = "Primary buffer number of channels (1 - mono, 2 - stereo)"
|
1077 |
}, |
1078 |
{ |
1079 |
.name = "PRIMARY_FMT",
|
1080 |
.tag = AUD_OPT_FMT, |
1081 |
.valp = &conf.settings.fmt, |
1082 |
.descr = "Primary buffer format"
|
1083 |
}, |
1084 |
{ |
1085 |
.name = "BUFSIZE_OUT",
|
1086 |
.tag = AUD_OPT_INT, |
1087 |
.valp = &conf.bufsize_out, |
1088 |
.descr = "(undocumented)"
|
1089 |
}, |
1090 |
{ |
1091 |
.name = "BUFSIZE_IN",
|
1092 |
.tag = AUD_OPT_INT, |
1093 |
.valp = &conf.bufsize_in, |
1094 |
.descr = "(undocumented)"
|
1095 |
}, |
1096 |
{ /* End of list */ }
|
1097 |
}; |
1098 |
|
1099 |
static struct audio_pcm_ops dsound_pcm_ops = { |
1100 |
.init_out = dsound_init_out, |
1101 |
.fini_out = dsound_fini_out, |
1102 |
.run_out = dsound_run_out, |
1103 |
.write = dsound_write, |
1104 |
.ctl_out = dsound_ctl_out, |
1105 |
|
1106 |
.init_in = dsound_init_in, |
1107 |
.fini_in = dsound_fini_in, |
1108 |
.run_in = dsound_run_in, |
1109 |
.read = dsound_read, |
1110 |
.ctl_in = dsound_ctl_in |
1111 |
}; |
1112 |
|
1113 |
struct audio_driver dsound_audio_driver = {
|
1114 |
.name = "dsound",
|
1115 |
.descr = "DirectSound http://wikipedia.org/wiki/DirectSound",
|
1116 |
.options = dsound_options, |
1117 |
.init = dsound_audio_init, |
1118 |
.fini = dsound_audio_fini, |
1119 |
.pcm_ops = &dsound_pcm_ops, |
1120 |
.can_be_default = 1,
|
1121 |
.max_voices_out = INT_MAX, |
1122 |
.max_voices_in = 1,
|
1123 |
.voice_size_out = sizeof (DSoundVoiceOut),
|
1124 |
.oice_size_in = sizeof (DSoundVoiceIn)
|
1125 |
}; |