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capture.c
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capture.c
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/* DirectSound capture buffer interface
*
* Copyright 2009 Maarten Lankhorst
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define CONST_VTABLE
#include <stdarg.h>
#include <windows.h>
#include <dsound.h>
#include "dsound_private.h"
#ifndef DSCBPN_OFFSET_STOP
#define DSCBPN_OFFSET_STOP 0xffffffff
#endif
typedef struct DSCImpl DSCImpl;
typedef struct DSCBuffer DSCBuffer;
struct DSCImpl {
/* IDirectSoundCapture and IDirectSoundCapture8 are aliases */
IDirectSoundCapture IDirectSoundCapture_iface;
IUnknown IUnknown_iface;
LONG allref, dscref, unkref;
BOOL is_8;
ALCchar *device_name;
DSCBuffer *buf;
CRITICAL_SECTION crst;
};
struct DSCBuffer {
IDirectSoundCaptureBuffer8 IDirectSoundCaptureBuffer8_iface;
IDirectSoundNotify IDirectSoundNotify_iface;
LONG ref, not_ref;
LONG all_ref;
DSCImpl *parent;
ALCdevice *device;
DWORD buf_size;
BYTE *buf;
LONG locked;
WAVEFORMATEXTENSIBLE format;
DSBPOSITIONNOTIFY *notify;
DWORD nnotify;
HANDLE thread_hdl;
DWORD thread_id;
HANDLE queue_timer;
HANDLE timer_evt;
volatile LONG quit_now;
DWORD pos;
BOOL playing, looping;
};
static IDirectSoundCaptureVtbl DSC_Vtbl;
static IUnknownVtbl DSC_Unknown_Vtbl;
static IDirectSoundCaptureBuffer8Vtbl DSCBuffer_Vtbl;
static IDirectSoundNotifyVtbl DSCNot_Vtbl;
static void DSCImpl_Destroy(DSCImpl *This);
static void trigger_notifies(DSCBuffer *buf, DWORD lastpos, DWORD curpos)
{
DWORD i;
if(lastpos == curpos)
return;
for(i = 0;i < buf->nnotify;++i)
{
DSBPOSITIONNOTIFY *not = &buf->notify[i];
HANDLE event = not->hEventNotify;
DWORD ofs = not->dwOffset;
if (ofs == DSCBPN_OFFSET_STOP)
continue;
/* Wraparound case */
if(curpos < lastpos)
{
if(ofs < curpos || ofs >= lastpos)
{
TRACE("Triggering notification %lu (%lu) from buffer %p\n", i, ofs, buf);
SetEvent(event);
}
continue;
}
/* Normal case */
if(ofs >= lastpos && ofs < curpos)
{
TRACE("Triggering notification %lu (%lu) from buffer %p\n", i, ofs, buf);
SetEvent(event);
}
}
}
static DWORD CALLBACK DSCBuffer_thread(void *param)
{
DSCBuffer *This = param;
CRITICAL_SECTION *crst = &This->parent->crst;
SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL);
while(WaitForSingleObject(This->timer_evt, INFINITE) == WAIT_OBJECT_0 && !This->quit_now)
{
ALCint avail = 0;
alcGetIntegerv(This->device, ALC_CAPTURE_SAMPLES, 1, &avail);
if(avail == 0 || !This->playing) continue;
EnterCriticalSection(crst);
if(!This->playing)
{
LeaveCriticalSection(crst);
continue;
}
more_samples:
avail *= This->format.Format.nBlockAlign;
if((DWORD)avail > This->buf_size - This->pos)
avail = This->buf_size - This->pos;
alcCaptureSamples(This->device, This->buf+This->pos,
avail/This->format.Format.nBlockAlign);
trigger_notifies(This, This->pos, This->pos + avail);
This->pos += avail;
if(This->pos == This->buf_size)
{
This->pos = 0;
if(!This->looping)
{
DWORD i;
for(i = 0;i < This->nnotify;++i)
{
if(This->notify[i].dwOffset == DSCBPN_OFFSET_STOP)
SetEvent(This->notify[i].hEventNotify);
}
This->playing = 0;
alcCaptureStop(This->device);
}
else
{
alcGetIntegerv(This->device, ALC_CAPTURE_SAMPLES, 1, &avail);
if(avail) goto more_samples;
}
}
LeaveCriticalSection(crst);
}
return 0;
}
static void CALLBACK DSCBuffer_timer(void *arg, BOOLEAN unused)
{
(void)unused;
SetEvent((HANDLE)arg);
}
static void DSCBuffer_starttimer(DSCBuffer *This)
{
ALint refresh = FAKE_REFRESH_COUNT;
DWORD triggertime;
if(This->queue_timer)
return;
triggertime = 1000 / refresh * 2 / 3;
TRACE("Calling timer every %lu ms for %i refreshes per second\n", triggertime, refresh);
CreateTimerQueueTimer(&This->queue_timer, NULL, DSCBuffer_timer, This->timer_evt,
triggertime, triggertime, WT_EXECUTEINTIMERTHREAD);
}
static HRESULT DSCBuffer_Create(DSCBuffer **buf, DSCImpl *parent)
{
DSCBuffer *This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This));
if(!This) return E_OUTOFMEMORY;
This->IDirectSoundCaptureBuffer8_iface.lpVtbl = &DSCBuffer_Vtbl;
This->IDirectSoundNotify_iface.lpVtbl = &DSCNot_Vtbl;
This->all_ref = This->ref = 1;
This->parent = parent;
This->quit_now = FALSE;
This->timer_evt = CreateEventA(NULL, FALSE, FALSE, NULL);
if(!This->timer_evt) goto fail;
This->queue_timer = NULL;
This->thread_hdl = CreateThread(NULL, 0, DSCBuffer_thread, This, 0, &This->thread_id);
if(!This->thread_hdl) goto fail;
*buf = This;
return S_OK;
fail:
if(This->timer_evt)
CloseHandle(This->timer_evt);
This->timer_evt = NULL;
HeapFree(GetProcessHeap(), 0, This);
return E_FAIL;
}
static void DSCBuffer_Destroy(DSCBuffer *This)
{
if(This->queue_timer)
DeleteTimerQueueTimer(NULL, This->queue_timer, INVALID_HANDLE_VALUE);
This->queue_timer = NULL;
if(This->thread_hdl)
{
InterlockedExchange(&This->quit_now, TRUE);
SetEvent(This->timer_evt);
if(WaitForSingleObject(This->thread_hdl, 1000) != WAIT_OBJECT_0)
ERR("Thread wait timed out\n");
CloseHandle(This->thread_hdl);
This->thread_hdl = NULL;
}
if(This->timer_evt)
CloseHandle(This->timer_evt);
This->timer_evt = NULL;
if(This->device)
{
if(This->playing)
alcCaptureStop(This->device);
alcCaptureCloseDevice(This->device);
}
This->parent->buf = NULL;
HeapFree(GetProcessHeap(), 0, This->notify);
HeapFree(GetProcessHeap(), 0, This->buf);
HeapFree(GetProcessHeap(), 0, This);
}
static inline DSCBuffer *impl_from_IDirectSoundCaptureBuffer8(IDirectSoundCaptureBuffer8 *iface)
{
return CONTAINING_RECORD(iface, DSCBuffer, IDirectSoundCaptureBuffer8_iface);
}
static HRESULT WINAPI DSCBuffer_QueryInterface(IDirectSoundCaptureBuffer8 *iface, REFIID riid, void **ppv)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
if(!ppv)
return E_POINTER;
*ppv = NULL;
if(IsEqualIID(riid, &IID_IUnknown) ||
IsEqualIID(riid, &IID_IDirectSoundCaptureBuffer))
*ppv = &This->IDirectSoundCaptureBuffer8_iface;
else if(IsEqualIID(riid, &IID_IDirectSoundCaptureBuffer8))
{
if(This->parent->is_8)
*ppv = &This->IDirectSoundCaptureBuffer8_iface;
}
else if(IsEqualIID(riid, &IID_IDirectSoundNotify))
*ppv = &This->IDirectSoundNotify_iface;
else
FIXME("Unhandled GUID: %s\n", debugstr_guid(riid));
if(!*ppv)
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI DSCBuffer_AddRef(IDirectSoundCaptureBuffer8 *iface)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
LONG ref;
InterlockedIncrement(&This->all_ref);
ref = InterlockedIncrement(&This->ref);
TRACE("Reference count incremented to %li\n", ref);
return ref;
}
static ULONG WINAPI DSCBuffer_Release(IDirectSoundCaptureBuffer8 *iface)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
LONG ref;
ref = InterlockedDecrement(&This->ref);
TRACE("Reference count decremented to %li\n", ref);
if(InterlockedDecrement(&This->all_ref) == 0)
DSCBuffer_Destroy(This);
return ref;
}
static HRESULT WINAPI DSCBuffer_GetCaps(IDirectSoundCaptureBuffer8 *iface, DSCBCAPS *caps)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
if (!caps || caps->dwSize < sizeof(*caps))
return DSERR_INVALIDPARAM;
caps->dwSize = sizeof(*caps);
caps->dwFlags = 0;
caps->dwBufferBytes = This->buf_size;
return S_OK;
}
static HRESULT WINAPI DSCBuffer_GetCurrentPosition(IDirectSoundCaptureBuffer8 *iface, DWORD *cappos, DWORD *readpos)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
DWORD pos1, pos2;
EnterCriticalSection(&This->parent->crst);
pos1 = This->pos;
if(This->playing)
{
pos2 = This->format.Format.nSamplesPerSec / 100;
pos2 *= This->format.Format.nBlockAlign;
pos2 += pos1;
if (!This->looping && pos2 >= This->buf_size)
pos2 = 0;
else
pos2 %= This->buf_size;
}
else
pos2 = pos1;
LeaveCriticalSection(&This->parent->crst);
if(cappos) *cappos = pos1;
if(readpos) *readpos = pos2;
return S_OK;
}
static HRESULT WINAPI DSCBuffer_GetFormat(IDirectSoundCaptureBuffer8 *iface, WAVEFORMATEX *wfx, DWORD allocated, DWORD *written)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
HRESULT hr = DS_OK;
UINT size;
TRACE("(%p)->(%p, %lu, %p)\n", iface, wfx, allocated, written);
if(!wfx && !written)
{
WARN("Cannot report format or format size\n");
return DSERR_INVALIDPARAM;
}
size = sizeof(This->format.Format) + This->format.Format.cbSize;
if(wfx)
{
if(allocated < size)
hr = DSERR_INVALIDPARAM;
else
memcpy(wfx, &This->format.Format, size);
}
if(written)
*written = size;
return hr;
}
static HRESULT WINAPI DSCBuffer_GetStatus(IDirectSoundCaptureBuffer8 *iface, DWORD *status)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
TRACE("(%p)->(%p)\n", iface, status);
if (!status)
return DSERR_INVALIDPARAM;
EnterCriticalSection(&This->parent->crst);
*status = 0;
if (This->playing)
{
*status |= DSCBSTATUS_CAPTURING;
if (This->looping)
*status |= DSCBSTATUS_LOOPING;
}
LeaveCriticalSection(&This->parent->crst);
return S_OK;
}
static HRESULT WINAPI DSCBuffer_Initialize(IDirectSoundCaptureBuffer8 *iface, IDirectSoundCapture *parent, const DSCBUFFERDESC *desc)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
WAVEFORMATEX *format;
ALenum buf_format = -1;
TRACE("(%p)->(%p, %p)\n", iface, parent, desc);
if(This->device)
return DSERR_ALREADYINITIALIZED;
if (!desc->lpwfxFormat)
return DSERR_INVALIDPARAM;
format = desc->lpwfxFormat;
if(format->nChannels <= 0 || format->nChannels > 2)
{
WARN("Invalid Channels %d\n", format->nChannels);
return DSERR_INVALIDPARAM;
}
if(format->wBitsPerSample <= 0 || (format->wBitsPerSample%8) != 0)
{
WARN("Invalid BitsPerSample %d\n", format->wBitsPerSample);
return DSERR_INVALIDPARAM;
}
if(format->nBlockAlign != format->nChannels*format->wBitsPerSample/8)
{
WARN("Invalid BlockAlign %d (expected %u = %u*%u/8)\n",
format->nBlockAlign, format->nChannels*format->wBitsPerSample/8,
format->nChannels, format->wBitsPerSample);
return DSERR_INVALIDPARAM;
}
if(format->nSamplesPerSec < DSBFREQUENCY_MIN || format->nSamplesPerSec > DSBFREQUENCY_MAX)
{
WARN("Invalid sample rate %lu\n", format->nSamplesPerSec);
return DSERR_INVALIDPARAM;
}
if(format->nAvgBytesPerSec != format->nSamplesPerSec*format->nBlockAlign)
{
WARN("Invalid AvgBytesPerSec %lu (expected %lu = %lu*%u)\n",
format->nAvgBytesPerSec, format->nSamplesPerSec*format->nBlockAlign,
format->nSamplesPerSec, format->nBlockAlign);
return DSERR_INVALIDPARAM;
}
if(format->wFormatTag == WAVE_FORMAT_PCM)
{
if(format->nChannels == 1)
{
switch(format->wBitsPerSample)
{
case 8: buf_format = AL_FORMAT_MONO8; break;
case 16: buf_format = AL_FORMAT_MONO16; break;
default:
WARN("Unsupported bpp %u\n", format->wBitsPerSample);
return DSERR_BADFORMAT;
}
}
else if(format->nChannels == 2)
{
switch(format->wBitsPerSample)
{
case 8: buf_format = AL_FORMAT_STEREO8; break;
case 16: buf_format = AL_FORMAT_STEREO16; break;
default:
WARN("Unsupported bpp %u\n", format->wBitsPerSample);
return DSERR_BADFORMAT;
}
}
else
WARN("Unsupported channels: %d\n", format->nChannels);
This->format.Format = *format;
This->format.Format.cbSize = 0;
}
else if(format->wFormatTag == WAVE_FORMAT_EXTENSIBLE)
{
WAVEFORMATEXTENSIBLE *wfe;
if(format->cbSize < sizeof(WAVEFORMATEXTENSIBLE)-sizeof(WAVEFORMATEX))
return DSERR_INVALIDPARAM;
else if(format->cbSize > sizeof(WAVEFORMATEXTENSIBLE)-sizeof(WAVEFORMATEX) &&
format->cbSize != sizeof(WAVEFORMATEXTENSIBLE))
return DSERR_CONTROLUNAVAIL;
wfe = CONTAINING_RECORD(format, WAVEFORMATEXTENSIBLE, Format);
if(!IsEqualGUID(&wfe->SubFormat, &KSDATAFORMAT_SUBTYPE_PCM))
return DSERR_BADFORMAT;
if(wfe->Samples.wValidBitsPerSample &&
wfe->Samples.wValidBitsPerSample != wfe->Format.wBitsPerSample)
return DSERR_BADFORMAT;
if(wfe->Format.nChannels == 1 && wfe->dwChannelMask == SPEAKER_FRONT_CENTER)
{
switch(wfe->Format.wBitsPerSample)
{
case 8: buf_format = AL_FORMAT_MONO8; break;
case 16: buf_format = AL_FORMAT_MONO16; break;
default:
WARN("Unsupported bpp %u\n", wfe->Format.wBitsPerSample);
return DSERR_BADFORMAT;
}
}
else if(wfe->Format.nChannels == 2 && wfe->dwChannelMask == (SPEAKER_FRONT_LEFT|SPEAKER_FRONT_RIGHT))
{
switch(wfe->Format.wBitsPerSample)
{
case 8: buf_format = AL_FORMAT_STEREO8; break;
case 16: buf_format = AL_FORMAT_STEREO16; break;
default:
WARN("Unsupported bpp %u\n", wfe->Format.wBitsPerSample);
return DSERR_BADFORMAT;
}
}
else
WARN("Unsupported channels: %d -- 0x%08lu\n", wfe->Format.nChannels, wfe->dwChannelMask);
This->format = *wfe;
This->format.Format.cbSize = sizeof(This->format) - sizeof(This->format.Format);
This->format.Samples.wValidBitsPerSample = This->format.Format.wBitsPerSample;
}
else
WARN("Unhandled formattag %x\n", format->wFormatTag);
if(buf_format <= 0)
{
WARN("Could not get OpenAL format\n");
return DSERR_INVALIDPARAM;
}
if(desc->dwBufferBytes < This->format.Format.nBlockAlign ||
(desc->dwBufferBytes%This->format.Format.nBlockAlign) != 0)
{
WARN("Invalid BufferBytes (%lu %% %d)\n", desc->dwBufferBytes,
This->format.Format.nBlockAlign);
return DSERR_INVALIDPARAM;
}
This->buf_size = desc->dwBufferBytes;
This->buf = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->buf_size);
if(!This->buf)
{
WARN("Out of memory\n");
return DSERR_INVALIDPARAM;
}
This->device = alcCaptureOpenDevice(This->parent->device_name,
This->format.Format.nSamplesPerSec, buf_format,
This->format.Format.nSamplesPerSec / FAKE_REFRESH_COUNT * 2
);
if(!This->device)
{
ERR("Couldn't open device %s 0x%x@%lu, reason: %04x\n", This->parent->device_name,
buf_format, This->format.Format.nSamplesPerSec, alcGetError(NULL));
return DSERR_INVALIDPARAM;
}
return S_OK;
}
static HRESULT WINAPI DSCBuffer_Lock(IDirectSoundCaptureBuffer8 *iface, DWORD ofs, DWORD bytes, void **ptr1, DWORD *len1, void **ptr2, DWORD *len2, DWORD flags)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
DWORD remain;
TRACE("(%p)->(%lu, %lu, %p, %p, %p, %p, %#lx)\n", iface, ofs, bytes, ptr1, len1, ptr2, len2, flags);
if(!ptr1 || !len1)
{
WARN("Invalid pointer/len %p %p\n", ptr1, len1);
return DSERR_INVALIDPARAM;
}
*ptr1 = NULL;
*len1 = 0;
if(ptr2) *ptr2 = NULL;
if(len2) *len2 = 0;
if(ofs >= This->buf_size)
{
WARN("Invalid ofs %lu\n", ofs);
return DSERR_INVALIDPARAM;
}
if((flags&DSCBLOCK_ENTIREBUFFER))
bytes = This->buf_size;
else if(bytes > This->buf_size)
{
WARN("Invalid size %lu\n", bytes);
return DSERR_INVALIDPARAM;
}
if(InterlockedExchange(&This->locked, TRUE) == TRUE)
{
WARN("Already locked\n");
return DSERR_INVALIDPARAM;
}
if(ofs + bytes >= This->buf_size)
{
*len1 = This->buf_size - ofs;
remain = bytes - *len1;
}
else
{
*len1 = bytes;
remain = 0;
}
*ptr1 = This->buf + ofs;
if(ptr2 && len2 && remain)
{
*ptr2 = This->buf;
*len2 = remain;
}
return DS_OK;
}
static HRESULT WINAPI DSCBuffer_Start(IDirectSoundCaptureBuffer8 *iface, DWORD flags)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
TRACE("(%p)->(%08lx)\n", iface, flags);
EnterCriticalSection(&This->parent->crst);
if(!This->playing)
{
DSCBuffer_starttimer(This);
This->playing = 1;
alcCaptureStart(This->device);
}
This->looping |= !!(flags & DSCBSTART_LOOPING);
LeaveCriticalSection(&This->parent->crst);
return S_OK;
}
static HRESULT WINAPI DSCBuffer_Stop(IDirectSoundCaptureBuffer8 *iface)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
TRACE("(%p)->()\n", iface);
EnterCriticalSection(&This->parent->crst);
if(This->playing)
{
DWORD i;
for(i = 0;i < This->nnotify;++i)
{
if(This->notify[i].dwOffset == DSCBPN_OFFSET_STOP)
SetEvent(This->notify[i].hEventNotify);
}
This->playing = This->looping = 0;
alcCaptureStop(This->device);
}
LeaveCriticalSection(&This->parent->crst);
return S_OK;
}
static HRESULT WINAPI DSCBuffer_Unlock(IDirectSoundCaptureBuffer8 *iface, void *ptr1, DWORD len1, void *ptr2, DWORD len2)
{
DSCBuffer *This = impl_from_IDirectSoundCaptureBuffer8(iface);
DWORD_PTR ofs1, ofs2;
DWORD_PTR boundary = (DWORD_PTR)This->buf;
TRACE("(%p)->(%p, %lu, %p, %lu)\n", iface, ptr1, len1, ptr2, len2);
if(InterlockedExchange(&This->locked, FALSE) == FALSE)
{
WARN("Not locked\n");
return DSERR_INVALIDPARAM;
}
/* Make sure offset is between boundary and boundary + bufsize */
ofs1 = (DWORD_PTR)ptr1;
ofs2 = (DWORD_PTR)ptr2;
if(ofs1 < boundary)
return DSERR_INVALIDPARAM;
if(ofs2 && ofs2 != boundary)
return DSERR_INVALIDPARAM;
ofs1 -= boundary;
ofs2 = 0;
if(This->buf_size-ofs1 < len1 || len2 > ofs1)
return DSERR_INVALIDPARAM;
return DS_OK;
}
static HRESULT WINAPI DSCBuffer_GetObjectInPath(IDirectSoundCaptureBuffer8 *iface, REFGUID guid, DWORD num, REFGUID riid, void **ppv)
{
FIXME("(%p)->(%s, %lu, %s, %p) stub\n", iface, debugstr_guid(guid), num, debugstr_guid(riid), ppv);
return E_NOTIMPL;
}
static HRESULT WINAPI DSCBuffer_GetFXStatus(IDirectSoundCaptureBuffer8 *iface, DWORD count, DWORD *status)
{
FIXME("(%p)->(%lu, %p) stub\n", iface, count, status);
return E_NOTIMPL;
}
static IDirectSoundCaptureBuffer8Vtbl DSCBuffer_Vtbl =
{
DSCBuffer_QueryInterface,
DSCBuffer_AddRef,
DSCBuffer_Release,
DSCBuffer_GetCaps,
DSCBuffer_GetCurrentPosition,
DSCBuffer_GetFormat,
DSCBuffer_GetStatus,
DSCBuffer_Initialize,
DSCBuffer_Lock,
DSCBuffer_Start,
DSCBuffer_Stop,
DSCBuffer_Unlock,
DSCBuffer_GetObjectInPath,
DSCBuffer_GetFXStatus
};
static inline DSCBuffer *impl_from_IDirectSoundNotify(IDirectSoundNotify *iface)
{
return CONTAINING_RECORD(iface, DSCBuffer, IDirectSoundNotify_iface);
}
static HRESULT WINAPI DSCBufferNot_QueryInterface(IDirectSoundNotify *iface, REFIID riid, void **ppv)
{
DSCBuffer *This = impl_from_IDirectSoundNotify(iface);
return IDirectSoundCaptureBuffer_QueryInterface(&This->IDirectSoundCaptureBuffer8_iface, riid, ppv);
}
static ULONG WINAPI DSCBufferNot_AddRef(IDirectSoundNotify *iface)
{
DSCBuffer *This = impl_from_IDirectSoundNotify(iface);
LONG ret;
InterlockedIncrement(&This->all_ref);
ret = InterlockedIncrement(&This->not_ref);
TRACE("new refcount %ld\n", ret);
return ret;
}
static ULONG WINAPI DSCBufferNot_Release(IDirectSoundNotify *iface)
{
DSCBuffer *This = impl_from_IDirectSoundNotify(iface);
LONG ret;
ret = InterlockedDecrement(&This->not_ref);
TRACE("new refcount %ld\n", ret);
if(InterlockedDecrement(&This->all_ref) == 0)
DSCBuffer_Destroy(This);
return ret;
}
static HRESULT WINAPI DSCBufferNot_SetNotificationPositions(IDirectSoundNotify *iface, DWORD count, const DSBPOSITIONNOTIFY *notifications)
{
DSCBuffer *This = impl_from_IDirectSoundNotify(iface);
DSBPOSITIONNOTIFY *nots;
HRESULT hr;
DWORD state;
TRACE("(%p)->(%lu, %p))\n", iface, count, notifications);
EnterCriticalSection(&This->parent->crst);
hr = DSERR_INVALIDPARAM;
if (count && !notifications)
goto out;
hr = DSCBuffer_GetStatus(&This->IDirectSoundCaptureBuffer8_iface, &state);
if(FAILED(hr)) goto out;
hr = DSERR_INVALIDCALL;
if (state & DSCBSTATUS_CAPTURING)
goto out;
if (!count)
{
HeapFree(GetProcessHeap(), 0, This->notify);
This->notify = 0;
This->nnotify = 0;
}
else
{
DWORD i;
hr = DSERR_INVALIDPARAM;
for (i = 0; i < count; ++i)
{
if (notifications[i].dwOffset >= This->buf_size
&& notifications[i].dwOffset != DSCBPN_OFFSET_STOP)
goto out;
}
hr = E_OUTOFMEMORY;
nots = HeapAlloc(GetProcessHeap(), 0, count*sizeof(*nots));
if (!nots)
goto out;
memcpy(nots, notifications, count*sizeof(*nots));
HeapFree(GetProcessHeap(), 0, This->notify);
This->notify = nots;
This->nnotify = count;
hr = S_OK;
}
out:
LeaveCriticalSection(&This->parent->crst);
return hr;
}
static IDirectSoundNotifyVtbl DSCNot_Vtbl =
{
DSCBufferNot_QueryInterface,
DSCBufferNot_AddRef,
DSCBufferNot_Release,
DSCBufferNot_SetNotificationPositions
};
static inline DSCImpl *impl_from_IDirectSoundCapture(IDirectSoundCapture *iface)
{
return CONTAINING_RECORD(iface, DSCImpl, IDirectSoundCapture_iface);
}
static inline DSCImpl *impl_from_IUnknown(IUnknown *iface)
{
return CONTAINING_RECORD(iface, DSCImpl, IUnknown_iface);
}
static HRESULT WINAPI DSCImpl_QueryInterface(IDirectSoundCapture *iface, REFIID riid, void **ppv);
static ULONG WINAPI DSCImpl_AddRef(IDirectSoundCapture *iface);
static ULONG WINAPI DSCImpl_Release(IDirectSoundCapture *iface);
HRESULT DSOUND_CaptureCreate(REFIID riid, void **cap)
{
HRESULT hr;
hr = DSOUND_CaptureCreate8(&IID_IDirectSoundCapture, cap);
if(SUCCEEDED(hr))
{
DSCImpl *impl = impl_from_IDirectSoundCapture(*cap);
impl->is_8 = FALSE;
if(!IsEqualIID(riid, &IID_IDirectSoundCapture))
{
hr = DSCImpl_QueryInterface(&impl->IDirectSoundCapture_iface, riid, cap);
DSCImpl_Release(&impl->IDirectSoundCapture_iface);
}
}
return hr;
}
HRESULT DSOUND_CaptureCreate8(REFIID riid, void **cap)
{
DSCImpl *This;
*cap = NULL;
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This));
if(!This) return DSERR_OUTOFMEMORY;
This->IDirectSoundCapture_iface.lpVtbl = &DSC_Vtbl;
This->IUnknown_iface.lpVtbl = &DSC_Unknown_Vtbl;
This->is_8 = TRUE;
InitializeCriticalSection(&This->crst);
if(FAILED(DSCImpl_QueryInterface(&This->IDirectSoundCapture_iface, riid, cap)))
{
DSCImpl_Destroy(This);
return E_NOINTERFACE;
}
return S_OK;
}
static void DSCImpl_Destroy(DSCImpl *This)
{
EnterCriticalSection(&This->crst);
if (This->buf)
DSCBuffer_Destroy(This->buf);
LeaveCriticalSection(&This->crst);
HeapFree(GetProcessHeap(), 0, This->device_name);
DeleteCriticalSection(&This->crst);
HeapFree(GetProcessHeap(), 0, This);
}
static HRESULT WINAPI DSCImpl_IUnknown_QueryInterface(IUnknown *iface, REFIID riid, void **ppobj)
{
DSCImpl *This = impl_from_IUnknown(iface);
return DSCImpl_QueryInterface(&This->IDirectSoundCapture_iface, riid, ppobj);
}
static ULONG WINAPI DSCImpl_IUnknown_AddRef(IUnknown *iface)
{
DSCImpl *This = impl_from_IUnknown(iface);
ULONG ref;
InterlockedIncrement(&(This->allref));
ref = InterlockedIncrement(&(This->unkref));
TRACE("(%p) ref was %lu\n", This, ref - 1);
return ref;
}
static ULONG WINAPI DSCImpl_IUnknown_Release(IUnknown *iface)
{
DSCImpl *This = impl_from_IUnknown(iface);
ULONG ref = InterlockedDecrement(&(This->unkref));
TRACE("(%p) ref was %lu\n", This, ref + 1);
if(InterlockedDecrement(&(This->allref)) == 0)
DSCImpl_Destroy(This);
return ref;
}
static IUnknownVtbl DSC_Unknown_Vtbl = {
DSCImpl_IUnknown_QueryInterface,
DSCImpl_IUnknown_AddRef,
DSCImpl_IUnknown_Release
};
static HRESULT WINAPI DSCImpl_QueryInterface(IDirectSoundCapture *iface, REFIID riid, void **ppv)
{
DSCImpl *This = impl_from_IDirectSoundCapture(iface);
TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
*ppv = NULL;
if(IsEqualIID(riid, &IID_IDirectSoundCapture))
*ppv = &This->IDirectSoundCapture_iface;
else if(IsEqualIID(riid, &IID_IUnknown))
*ppv = &This->IUnknown_iface;
else
FIXME("Unhandled GUID: %s\n", debugstr_guid(riid));
if(*ppv)
{
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
return E_NOINTERFACE;
}
static ULONG WINAPI DSCImpl_AddRef(IDirectSoundCapture *iface)
{
DSCImpl *This = impl_from_IDirectSoundCapture(iface);
LONG ref;
InterlockedIncrement(&(This->allref));
ref = InterlockedIncrement(&This->dscref);
TRACE("Reference count incremented to %li\n", ref);
return ref;
}
static ULONG WINAPI DSCImpl_Release(IDirectSoundCapture *iface)
{
DSCImpl *This = impl_from_IDirectSoundCapture(iface);
LONG ref;
ref = InterlockedDecrement(&This->dscref);
TRACE("Reference count decremented to %li\n", ref);
if(InterlockedDecrement(&This->allref) == 0)
DSCImpl_Destroy(This);
return ref;
}
static HRESULT WINAPI DSCImpl_CreateCaptureBuffer(IDirectSoundCapture *iface, const DSCBUFFERDESC *desc, IDirectSoundCaptureBuffer **ppv, IUnknown *unk)
{
DSCImpl *This = impl_from_IDirectSoundCapture(iface);
DSCBuffer *buffer;
HRESULT hr;
TRACE("(%p)->(%p, %p, %p)\n", iface, desc, ppv, unk);
if(unk)
{