root / audio / dsoundaudio.c @ 109819e0
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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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1,
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1,
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1,
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0,
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16384,
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16384,
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{ |
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44100,
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2,
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AUD_FMT_S16 |
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}, |
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10
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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); |
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dsound_log_hresult (hr); |
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} |
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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, |
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... |
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) |
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{ |
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va_list ap; |
257 |
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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); |
262 |
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dsound_log_hresult (hr); |
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} |
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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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} |
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|
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#ifdef DEBUG_DSOUND
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static void print_wave_format (WAVEFORMATEX *wfx) |
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{ |
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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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} |
282 |
#endif
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static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb) |
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{ |
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HRESULT hr; |
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int i;
|
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|
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for (i = 0; i < conf.restore_retries; ++i) { |
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hr = IDirectSoundBuffer_Restore (dsb); |
291 |
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switch (hr) {
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case DS_OK:
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return 0; |
295 |
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case DSERR_BUFFERLOST:
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continue;
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default:
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dsound_logerr (hr, "Could not restore playback buffer\n");
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return -1; |
302 |
} |
303 |
} |
304 |
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dolog ("%d attempts to restore playback buffer failed\n", i);
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return -1; |
307 |
} |
308 |
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static int waveformat_from_audio_settings (WAVEFORMATEX *wfx, |
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struct audsettings *as)
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{ |
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memset (wfx, 0, sizeof (*wfx)); |
313 |
|
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wfx->wFormatTag = WAVE_FORMAT_PCM; |
315 |
wfx->nChannels = as->nchannels; |
316 |
wfx->nSamplesPerSec = as->freq; |
317 |
wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
|
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wfx->nBlockAlign = 1 << (as->nchannels == 2); |
319 |
wfx->cbSize = 0;
|
320 |
|
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switch (as->fmt) {
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322 |
case AUD_FMT_S8:
|
323 |
case AUD_FMT_U8:
|
324 |
wfx->wBitsPerSample = 8;
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325 |
break;
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326 |
|
327 |
case AUD_FMT_S16:
|
328 |
case AUD_FMT_U16:
|
329 |
wfx->wBitsPerSample = 16;
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330 |
wfx->nAvgBytesPerSec <<= 1;
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331 |
wfx->nBlockAlign <<= 1;
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332 |
break;
|
333 |
|
334 |
case AUD_FMT_S32:
|
335 |
case AUD_FMT_U32:
|
336 |
wfx->wBitsPerSample = 32;
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337 |
wfx->nAvgBytesPerSec <<= 2;
|
338 |
wfx->nBlockAlign <<= 2;
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339 |
break;
|
340 |
|
341 |
default:
|
342 |
dolog ("Internal logic error: Bad audio format %d\n", as->freq);
|
343 |
return -1; |
344 |
} |
345 |
|
346 |
return 0; |
347 |
} |
348 |
|
349 |
static int waveformat_to_audio_settings (WAVEFORMATEX *wfx, |
350 |
struct audsettings *as)
|
351 |
{ |
352 |
if (wfx->wFormatTag != WAVE_FORMAT_PCM) {
|
353 |
dolog ("Invalid wave format, tag is not PCM, but %d\n",
|
354 |
wfx->wFormatTag); |
355 |
return -1; |
356 |
} |
357 |
|
358 |
if (!wfx->nSamplesPerSec) {
|
359 |
dolog ("Invalid wave format, frequency is zero\n");
|
360 |
return -1; |
361 |
} |
362 |
as->freq = wfx->nSamplesPerSec; |
363 |
|
364 |
switch (wfx->nChannels) {
|
365 |
case 1: |
366 |
as->nchannels = 1;
|
367 |
break;
|
368 |
|
369 |
case 2: |
370 |
as->nchannels = 2;
|
371 |
break;
|
372 |
|
373 |
default:
|
374 |
dolog ( |
375 |
"Invalid wave format, number of channels is not 1 or 2, but %d\n",
|
376 |
wfx->nChannels |
377 |
); |
378 |
return -1; |
379 |
} |
380 |
|
381 |
switch (wfx->wBitsPerSample) {
|
382 |
case 8: |
383 |
as->fmt = AUD_FMT_U8; |
384 |
break;
|
385 |
|
386 |
case 16: |
387 |
as->fmt = AUD_FMT_S16; |
388 |
break;
|
389 |
|
390 |
case 32: |
391 |
as->fmt = AUD_FMT_S32; |
392 |
break;
|
393 |
|
394 |
default:
|
395 |
dolog ("Invalid wave format, bits per sample is not "
|
396 |
"8, 16 or 32, but %d\n",
|
397 |
wfx->wBitsPerSample); |
398 |
return -1; |
399 |
} |
400 |
|
401 |
return 0; |
402 |
} |
403 |
|
404 |
#include "dsound_template.h" |
405 |
#define DSBTYPE_IN
|
406 |
#include "dsound_template.h" |
407 |
#undef DSBTYPE_IN
|
408 |
|
409 |
static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp) |
410 |
{ |
411 |
HRESULT hr; |
412 |
int i;
|
413 |
|
414 |
for (i = 0; i < conf.getstatus_retries; ++i) { |
415 |
hr = IDirectSoundBuffer_GetStatus (dsb, statusp); |
416 |
if (FAILED (hr)) {
|
417 |
dsound_logerr (hr, "Could not get playback buffer status\n");
|
418 |
return -1; |
419 |
} |
420 |
|
421 |
if (*statusp & DSERR_BUFFERLOST) {
|
422 |
if (dsound_restore_out (dsb)) {
|
423 |
return -1; |
424 |
} |
425 |
continue;
|
426 |
} |
427 |
break;
|
428 |
} |
429 |
|
430 |
return 0; |
431 |
} |
432 |
|
433 |
static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb, |
434 |
DWORD *statusp) |
435 |
{ |
436 |
HRESULT hr; |
437 |
|
438 |
hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp); |
439 |
if (FAILED (hr)) {
|
440 |
dsound_logerr (hr, "Could not get capture buffer status\n");
|
441 |
return -1; |
442 |
} |
443 |
|
444 |
return 0; |
445 |
} |
446 |
|
447 |
static void dsound_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len) |
448 |
{ |
449 |
int src_len1 = dst_len;
|
450 |
int src_len2 = 0; |
451 |
int pos = hw->rpos + dst_len;
|
452 |
struct st_sample *src1 = hw->mix_buf + hw->rpos;
|
453 |
struct st_sample *src2 = NULL; |
454 |
|
455 |
if (pos > hw->samples) {
|
456 |
src_len1 = hw->samples - hw->rpos; |
457 |
src2 = hw->mix_buf; |
458 |
src_len2 = dst_len - src_len1; |
459 |
pos = src_len2; |
460 |
} |
461 |
|
462 |
if (src_len1) {
|
463 |
hw->clip (dst, src1, src_len1); |
464 |
} |
465 |
|
466 |
if (src_len2) {
|
467 |
dst = advance (dst, src_len1 << hw->info.shift); |
468 |
hw->clip (dst, src2, src_len2); |
469 |
} |
470 |
|
471 |
hw->rpos = pos % hw->samples; |
472 |
} |
473 |
|
474 |
static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb) |
475 |
{ |
476 |
int err;
|
477 |
LPVOID p1, p2; |
478 |
DWORD blen1, blen2, len1, len2; |
479 |
|
480 |
err = dsound_lock_out ( |
481 |
dsb, |
482 |
&hw->info, |
483 |
0,
|
484 |
hw->samples << hw->info.shift, |
485 |
&p1, &p2, |
486 |
&blen1, &blen2, |
487 |
1
|
488 |
); |
489 |
if (err) {
|
490 |
return;
|
491 |
} |
492 |
|
493 |
len1 = blen1 >> hw->info.shift; |
494 |
len2 = blen2 >> hw->info.shift; |
495 |
|
496 |
#ifdef DEBUG_DSOUND
|
497 |
dolog ("clear %p,%ld,%ld %p,%ld,%ld\n",
|
498 |
p1, blen1, len1, |
499 |
p2, blen2, len2); |
500 |
#endif
|
501 |
|
502 |
if (p1 && len1) {
|
503 |
audio_pcm_info_clear_buf (&hw->info, p1, len1); |
504 |
} |
505 |
|
506 |
if (p2 && len2) {
|
507 |
audio_pcm_info_clear_buf (&hw->info, p2, len2); |
508 |
} |
509 |
|
510 |
dsound_unlock_out (dsb, p1, p2, blen1, blen2); |
511 |
} |
512 |
|
513 |
static void dsound_close (dsound *s) |
514 |
{ |
515 |
HRESULT hr; |
516 |
|
517 |
if (s->dsound_primary_buffer) {
|
518 |
hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer); |
519 |
if (FAILED (hr)) {
|
520 |
dsound_logerr (hr, "Could not release primary buffer\n");
|
521 |
} |
522 |
s->dsound_primary_buffer = NULL;
|
523 |
} |
524 |
} |
525 |
|
526 |
static int dsound_open (dsound *s) |
527 |
{ |
528 |
int err;
|
529 |
HRESULT hr; |
530 |
WAVEFORMATEX wfx; |
531 |
DSBUFFERDESC dsbd; |
532 |
HWND hwnd; |
533 |
|
534 |
hwnd = GetForegroundWindow (); |
535 |
hr = IDirectSound_SetCooperativeLevel ( |
536 |
s->dsound, |
537 |
hwnd, |
538 |
DSSCL_PRIORITY |
539 |
); |
540 |
|
541 |
if (FAILED (hr)) {
|
542 |
dsound_logerr (hr, "Could not set cooperative level for window %p\n",
|
543 |
hwnd); |
544 |
return -1; |
545 |
} |
546 |
|
547 |
if (!conf.set_primary) {
|
548 |
return 0; |
549 |
} |
550 |
|
551 |
err = waveformat_from_audio_settings (&wfx, &conf.settings); |
552 |
if (err) {
|
553 |
return -1; |
554 |
} |
555 |
|
556 |
memset (&dsbd, 0, sizeof (dsbd)); |
557 |
dsbd.dwSize = sizeof (dsbd);
|
558 |
dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER; |
559 |
dsbd.dwBufferBytes = 0;
|
560 |
dsbd.lpwfxFormat = NULL;
|
561 |
|
562 |
hr = IDirectSound_CreateSoundBuffer ( |
563 |
s->dsound, |
564 |
&dsbd, |
565 |
&s->dsound_primary_buffer, |
566 |
NULL
|
567 |
); |
568 |
if (FAILED (hr)) {
|
569 |
dsound_logerr (hr, "Could not create primary playback buffer\n");
|
570 |
return -1; |
571 |
} |
572 |
|
573 |
hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx); |
574 |
if (FAILED (hr)) {
|
575 |
dsound_logerr (hr, "Could not set primary playback buffer format\n");
|
576 |
} |
577 |
|
578 |
hr = IDirectSoundBuffer_GetFormat ( |
579 |
s->dsound_primary_buffer, |
580 |
&wfx, |
581 |
sizeof (wfx),
|
582 |
NULL
|
583 |
); |
584 |
if (FAILED (hr)) {
|
585 |
dsound_logerr (hr, "Could not get primary playback buffer format\n");
|
586 |
goto fail0;
|
587 |
} |
588 |
|
589 |
#ifdef DEBUG_DSOUND
|
590 |
dolog ("Primary\n");
|
591 |
print_wave_format (&wfx); |
592 |
#endif
|
593 |
|
594 |
err = waveformat_to_audio_settings (&wfx, &s->settings); |
595 |
if (err) {
|
596 |
goto fail0;
|
597 |
} |
598 |
|
599 |
return 0; |
600 |
|
601 |
fail0:
|
602 |
dsound_close (s); |
603 |
return -1; |
604 |
} |
605 |
|
606 |
static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...) |
607 |
{ |
608 |
HRESULT hr; |
609 |
DWORD status; |
610 |
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; |
611 |
LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; |
612 |
|
613 |
if (!dsb) {
|
614 |
dolog ("Attempt to control voice without a buffer\n");
|
615 |
return 0; |
616 |
} |
617 |
|
618 |
switch (cmd) {
|
619 |
case VOICE_ENABLE:
|
620 |
if (dsound_get_status_out (dsb, &status)) {
|
621 |
return -1; |
622 |
} |
623 |
|
624 |
if (status & DSBSTATUS_PLAYING) {
|
625 |
dolog ("warning: Voice is already playing\n");
|
626 |
return 0; |
627 |
} |
628 |
|
629 |
dsound_clear_sample (hw, dsb); |
630 |
|
631 |
hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING); |
632 |
if (FAILED (hr)) {
|
633 |
dsound_logerr (hr, "Could not start playing buffer\n");
|
634 |
return -1; |
635 |
} |
636 |
break;
|
637 |
|
638 |
case VOICE_DISABLE:
|
639 |
if (dsound_get_status_out (dsb, &status)) {
|
640 |
return -1; |
641 |
} |
642 |
|
643 |
if (status & DSBSTATUS_PLAYING) {
|
644 |
hr = IDirectSoundBuffer_Stop (dsb); |
645 |
if (FAILED (hr)) {
|
646 |
dsound_logerr (hr, "Could not stop playing buffer\n");
|
647 |
return -1; |
648 |
} |
649 |
} |
650 |
else {
|
651 |
dolog ("warning: Voice is not playing\n");
|
652 |
} |
653 |
break;
|
654 |
} |
655 |
return 0; |
656 |
} |
657 |
|
658 |
static int dsound_write (SWVoiceOut *sw, void *buf, int len) |
659 |
{ |
660 |
return audio_pcm_sw_write (sw, buf, len);
|
661 |
} |
662 |
|
663 |
static int dsound_run_out (HWVoiceOut *hw) |
664 |
{ |
665 |
int err;
|
666 |
HRESULT hr; |
667 |
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; |
668 |
LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; |
669 |
int live, len, hwshift;
|
670 |
DWORD blen1, blen2; |
671 |
DWORD len1, len2; |
672 |
DWORD decr; |
673 |
DWORD wpos, ppos, old_pos; |
674 |
LPVOID p1, p2; |
675 |
int bufsize;
|
676 |
|
677 |
if (!dsb) {
|
678 |
dolog ("Attempt to run empty with playback buffer\n");
|
679 |
return 0; |
680 |
} |
681 |
|
682 |
hwshift = hw->info.shift; |
683 |
bufsize = hw->samples << hwshift; |
684 |
|
685 |
live = audio_pcm_hw_get_live_out (hw); |
686 |
|
687 |
hr = IDirectSoundBuffer_GetCurrentPosition ( |
688 |
dsb, |
689 |
&ppos, |
690 |
ds->first_time ? &wpos : NULL
|
691 |
); |
692 |
if (FAILED (hr)) {
|
693 |
dsound_logerr (hr, "Could not get playback buffer position\n");
|
694 |
return 0; |
695 |
} |
696 |
|
697 |
len = live << hwshift; |
698 |
|
699 |
if (ds->first_time) {
|
700 |
if (conf.latency_millis) {
|
701 |
DWORD cur_blat; |
702 |
|
703 |
cur_blat = audio_ring_dist (wpos, ppos, bufsize); |
704 |
ds->first_time = 0;
|
705 |
old_pos = wpos; |
706 |
old_pos += |
707 |
millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat; |
708 |
old_pos %= bufsize; |
709 |
old_pos &= ~hw->info.align; |
710 |
} |
711 |
else {
|
712 |
old_pos = wpos; |
713 |
} |
714 |
#ifdef DEBUG_DSOUND
|
715 |
ds->played = 0;
|
716 |
ds->mixed = 0;
|
717 |
#endif
|
718 |
} |
719 |
else {
|
720 |
if (ds->old_pos == ppos) {
|
721 |
#ifdef DEBUG_DSOUND
|
722 |
dolog ("old_pos == ppos\n");
|
723 |
#endif
|
724 |
return 0; |
725 |
} |
726 |
|
727 |
#ifdef DEBUG_DSOUND
|
728 |
ds->played += audio_ring_dist (ds->old_pos, ppos, hw->bufsize); |
729 |
#endif
|
730 |
old_pos = ds->old_pos; |
731 |
} |
732 |
|
733 |
if ((old_pos < ppos) && ((old_pos + len) > ppos)) {
|
734 |
len = ppos - old_pos; |
735 |
} |
736 |
else {
|
737 |
if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) {
|
738 |
len = bufsize - old_pos + ppos; |
739 |
} |
740 |
} |
741 |
|
742 |
if (audio_bug (AUDIO_FUNC, len < 0 || len > bufsize)) { |
743 |
dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n",
|
744 |
len, bufsize, old_pos, ppos); |
745 |
return 0; |
746 |
} |
747 |
|
748 |
len &= ~hw->info.align; |
749 |
if (!len) {
|
750 |
return 0; |
751 |
} |
752 |
|
753 |
#ifdef DEBUG_DSOUND
|
754 |
ds->old_ppos = ppos; |
755 |
#endif
|
756 |
err = dsound_lock_out ( |
757 |
dsb, |
758 |
&hw->info, |
759 |
old_pos, |
760 |
len, |
761 |
&p1, &p2, |
762 |
&blen1, &blen2, |
763 |
0
|
764 |
); |
765 |
if (err) {
|
766 |
return 0; |
767 |
} |
768 |
|
769 |
len1 = blen1 >> hwshift; |
770 |
len2 = blen2 >> hwshift; |
771 |
decr = len1 + len2; |
772 |
|
773 |
if (p1 && len1) {
|
774 |
dsound_write_sample (hw, p1, len1); |
775 |
} |
776 |
|
777 |
if (p2 && len2) {
|
778 |
dsound_write_sample (hw, p2, len2); |
779 |
} |
780 |
|
781 |
dsound_unlock_out (dsb, p1, p2, blen1, blen2); |
782 |
ds->old_pos = (old_pos + (decr << hwshift)) % bufsize; |
783 |
|
784 |
#ifdef DEBUG_DSOUND
|
785 |
ds->mixed += decr << hwshift; |
786 |
|
787 |
dolog ("played %lu mixed %lu diff %ld sec %f\n",
|
788 |
ds->played, |
789 |
ds->mixed, |
790 |
ds->mixed - ds->played, |
791 |
abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second);
|
792 |
#endif
|
793 |
return decr;
|
794 |
} |
795 |
|
796 |
static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...) |
797 |
{ |
798 |
HRESULT hr; |
799 |
DWORD status; |
800 |
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; |
801 |
LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer; |
802 |
|
803 |
if (!dscb) {
|
804 |
dolog ("Attempt to control capture voice without a buffer\n");
|
805 |
return -1; |
806 |
} |
807 |
|
808 |
switch (cmd) {
|
809 |
case VOICE_ENABLE:
|
810 |
if (dsound_get_status_in (dscb, &status)) {
|
811 |
return -1; |
812 |
} |
813 |
|
814 |
if (status & DSCBSTATUS_CAPTURING) {
|
815 |
dolog ("warning: Voice is already capturing\n");
|
816 |
return 0; |
817 |
} |
818 |
|
819 |
/* clear ?? */
|
820 |
|
821 |
hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING); |
822 |
if (FAILED (hr)) {
|
823 |
dsound_logerr (hr, "Could not start capturing\n");
|
824 |
return -1; |
825 |
} |
826 |
break;
|
827 |
|
828 |
case VOICE_DISABLE:
|
829 |
if (dsound_get_status_in (dscb, &status)) {
|
830 |
return -1; |
831 |
} |
832 |
|
833 |
if (status & DSCBSTATUS_CAPTURING) {
|
834 |
hr = IDirectSoundCaptureBuffer_Stop (dscb); |
835 |
if (FAILED (hr)) {
|
836 |
dsound_logerr (hr, "Could not stop capturing\n");
|
837 |
return -1; |
838 |
} |
839 |
} |
840 |
else {
|
841 |
dolog ("warning: Voice is not capturing\n");
|
842 |
} |
843 |
break;
|
844 |
} |
845 |
return 0; |
846 |
} |
847 |
|
848 |
static int dsound_read (SWVoiceIn *sw, void *buf, int len) |
849 |
{ |
850 |
return audio_pcm_sw_read (sw, buf, len);
|
851 |
} |
852 |
|
853 |
static int dsound_run_in (HWVoiceIn *hw) |
854 |
{ |
855 |
int err;
|
856 |
HRESULT hr; |
857 |
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; |
858 |
LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer; |
859 |
int live, len, dead;
|
860 |
DWORD blen1, blen2; |
861 |
DWORD len1, len2; |
862 |
DWORD decr; |
863 |
DWORD cpos, rpos; |
864 |
LPVOID p1, p2; |
865 |
int hwshift;
|
866 |
|
867 |
if (!dscb) {
|
868 |
dolog ("Attempt to run without capture buffer\n");
|
869 |
return 0; |
870 |
} |
871 |
|
872 |
hwshift = hw->info.shift; |
873 |
|
874 |
live = audio_pcm_hw_get_live_in (hw); |
875 |
dead = hw->samples - live; |
876 |
if (!dead) {
|
877 |
return 0; |
878 |
} |
879 |
|
880 |
hr = IDirectSoundCaptureBuffer_GetCurrentPosition ( |
881 |
dscb, |
882 |
&cpos, |
883 |
ds->first_time ? &rpos : NULL
|
884 |
); |
885 |
if (FAILED (hr)) {
|
886 |
dsound_logerr (hr, "Could not get capture buffer position\n");
|
887 |
return 0; |
888 |
} |
889 |
|
890 |
if (ds->first_time) {
|
891 |
ds->first_time = 0;
|
892 |
if (rpos & hw->info.align) {
|
893 |
ldebug ("warning: Misaligned capture read position %ld(%d)\n",
|
894 |
rpos, hw->info.align); |
895 |
} |
896 |
hw->wpos = rpos >> hwshift; |
897 |
} |
898 |
|
899 |
if (cpos & hw->info.align) {
|
900 |
ldebug ("warning: Misaligned capture position %ld(%d)\n",
|
901 |
cpos, hw->info.align); |
902 |
} |
903 |
cpos >>= hwshift; |
904 |
|
905 |
len = audio_ring_dist (cpos, hw->wpos, hw->samples); |
906 |
if (!len) {
|
907 |
return 0; |
908 |
} |
909 |
len = audio_MIN (len, dead); |
910 |
|
911 |
err = dsound_lock_in ( |
912 |
dscb, |
913 |
&hw->info, |
914 |
hw->wpos << hwshift, |
915 |
len << hwshift, |
916 |
&p1, |
917 |
&p2, |
918 |
&blen1, |
919 |
&blen2, |
920 |
0
|
921 |
); |
922 |
if (err) {
|
923 |
return 0; |
924 |
} |
925 |
|
926 |
len1 = blen1 >> hwshift; |
927 |
len2 = blen2 >> hwshift; |
928 |
decr = len1 + len2; |
929 |
|
930 |
if (p1 && len1) {
|
931 |
hw->conv (hw->conv_buf + hw->wpos, p1, len1, &nominal_volume); |
932 |
} |
933 |
|
934 |
if (p2 && len2) {
|
935 |
hw->conv (hw->conv_buf, p2, len2, &nominal_volume); |
936 |
} |
937 |
|
938 |
dsound_unlock_in (dscb, p1, p2, blen1, blen2); |
939 |
hw->wpos = (hw->wpos + decr) % hw->samples; |
940 |
return decr;
|
941 |
} |
942 |
|
943 |
static void dsound_audio_fini (void *opaque) |
944 |
{ |
945 |
HRESULT hr; |
946 |
dsound *s = opaque; |
947 |
|
948 |
if (!s->dsound) {
|
949 |
return;
|
950 |
} |
951 |
|
952 |
hr = IDirectSound_Release (s->dsound); |
953 |
if (FAILED (hr)) {
|
954 |
dsound_logerr (hr, "Could not release DirectSound\n");
|
955 |
} |
956 |
s->dsound = NULL;
|
957 |
|
958 |
if (!s->dsound_capture) {
|
959 |
return;
|
960 |
} |
961 |
|
962 |
hr = IDirectSoundCapture_Release (s->dsound_capture); |
963 |
if (FAILED (hr)) {
|
964 |
dsound_logerr (hr, "Could not release DirectSoundCapture\n");
|
965 |
} |
966 |
s->dsound_capture = NULL;
|
967 |
} |
968 |
|
969 |
static void *dsound_audio_init (void) |
970 |
{ |
971 |
int err;
|
972 |
HRESULT hr; |
973 |
dsound *s = &glob_dsound; |
974 |
|
975 |
hr = CoInitialize (NULL);
|
976 |
if (FAILED (hr)) {
|
977 |
dsound_logerr (hr, "Could not initialize COM\n");
|
978 |
return NULL; |
979 |
} |
980 |
|
981 |
hr = CoCreateInstance ( |
982 |
&CLSID_DirectSound, |
983 |
NULL,
|
984 |
CLSCTX_ALL, |
985 |
&IID_IDirectSound, |
986 |
(void **) &s->dsound
|
987 |
); |
988 |
if (FAILED (hr)) {
|
989 |
dsound_logerr (hr, "Could not create DirectSound instance\n");
|
990 |
return NULL; |
991 |
} |
992 |
|
993 |
hr = IDirectSound_Initialize (s->dsound, NULL);
|
994 |
if (FAILED (hr)) {
|
995 |
dsound_logerr (hr, "Could not initialize DirectSound\n");
|
996 |
|
997 |
hr = IDirectSound_Release (s->dsound); |
998 |
if (FAILED (hr)) {
|
999 |
dsound_logerr (hr, "Could not release DirectSound\n");
|
1000 |
} |
1001 |
s->dsound = NULL;
|
1002 |
return NULL; |
1003 |
} |
1004 |
|
1005 |
hr = CoCreateInstance ( |
1006 |
&CLSID_DirectSoundCapture, |
1007 |
NULL,
|
1008 |
CLSCTX_ALL, |
1009 |
&IID_IDirectSoundCapture, |
1010 |
(void **) &s->dsound_capture
|
1011 |
); |
1012 |
if (FAILED (hr)) {
|
1013 |
dsound_logerr (hr, "Could not create DirectSoundCapture instance\n");
|
1014 |
} |
1015 |
else {
|
1016 |
hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL);
|
1017 |
if (FAILED (hr)) {
|
1018 |
dsound_logerr (hr, "Could not initialize DirectSoundCapture\n");
|
1019 |
|
1020 |
hr = IDirectSoundCapture_Release (s->dsound_capture); |
1021 |
if (FAILED (hr)) {
|
1022 |
dsound_logerr (hr, "Could not release DirectSoundCapture\n");
|
1023 |
} |
1024 |
s->dsound_capture = NULL;
|
1025 |
} |
1026 |
} |
1027 |
|
1028 |
err = dsound_open (s); |
1029 |
if (err) {
|
1030 |
dsound_audio_fini (s); |
1031 |
return NULL; |
1032 |
} |
1033 |
|
1034 |
return s;
|
1035 |
} |
1036 |
|
1037 |
static struct audio_option dsound_options[] = { |
1038 |
{"LOCK_RETRIES", AUD_OPT_INT, &conf.lock_retries,
|
1039 |
"Number of times to attempt locking the buffer", NULL, 0}, |
1040 |
{"RESTOURE_RETRIES", AUD_OPT_INT, &conf.restore_retries,
|
1041 |
"Number of times to attempt restoring the buffer", NULL, 0}, |
1042 |
{"GETSTATUS_RETRIES", AUD_OPT_INT, &conf.getstatus_retries,
|
1043 |
"Number of times to attempt getting status of the buffer", NULL, 0}, |
1044 |
{"SET_PRIMARY", AUD_OPT_BOOL, &conf.set_primary,
|
1045 |
"Set the parameters of primary buffer", NULL, 0}, |
1046 |
{"LATENCY_MILLIS", AUD_OPT_INT, &conf.latency_millis,
|
1047 |
"(undocumented)", NULL, 0}, |
1048 |
{"PRIMARY_FREQ", AUD_OPT_INT, &conf.settings.freq,
|
1049 |
"Primary buffer frequency", NULL, 0}, |
1050 |
{"PRIMARY_CHANNELS", AUD_OPT_INT, &conf.settings.nchannels,
|
1051 |
"Primary buffer number of channels (1 - mono, 2 - stereo)", NULL, 0}, |
1052 |
{"PRIMARY_FMT", AUD_OPT_FMT, &conf.settings.fmt,
|
1053 |
"Primary buffer format", NULL, 0}, |
1054 |
{"BUFSIZE_OUT", AUD_OPT_INT, &conf.bufsize_out,
|
1055 |
"(undocumented)", NULL, 0}, |
1056 |
{"BUFSIZE_IN", AUD_OPT_INT, &conf.bufsize_in,
|
1057 |
"(undocumented)", NULL, 0}, |
1058 |
{NULL, 0, NULL, NULL, NULL, 0} |
1059 |
}; |
1060 |
|
1061 |
static struct audio_pcm_ops dsound_pcm_ops = { |
1062 |
dsound_init_out, |
1063 |
dsound_fini_out, |
1064 |
dsound_run_out, |
1065 |
dsound_write, |
1066 |
dsound_ctl_out, |
1067 |
|
1068 |
dsound_init_in, |
1069 |
dsound_fini_in, |
1070 |
dsound_run_in, |
1071 |
dsound_read, |
1072 |
dsound_ctl_in |
1073 |
}; |
1074 |
|
1075 |
struct audio_driver dsound_audio_driver = {
|
1076 |
INIT_FIELD (name = ) "dsound",
|
1077 |
INIT_FIELD (descr = ) |
1078 |
"DirectSound http://wikipedia.org/wiki/DirectSound",
|
1079 |
INIT_FIELD (options = ) dsound_options, |
1080 |
INIT_FIELD (init = ) dsound_audio_init, |
1081 |
INIT_FIELD (fini = ) dsound_audio_fini, |
1082 |
INIT_FIELD (pcm_ops = ) &dsound_pcm_ops, |
1083 |
INIT_FIELD (can_be_default = ) 1,
|
1084 |
INIT_FIELD (max_voices_out = ) INT_MAX, |
1085 |
INIT_FIELD (max_voices_in = ) 1,
|
1086 |
INIT_FIELD (voice_size_out = ) sizeof (DSoundVoiceOut),
|
1087 |
INIT_FIELD (voice_size_in = ) sizeof (DSoundVoiceIn)
|
1088 |
}; |