enumpins.c File Reference

#include "dshow.h"
#include "wine/strmbase.h"
#include "wine/debug.h"

Include dependency graph for enumpins.c:

Go to the source code of this file.

Classes
struct	IEnumPinsImpl

Macros
#define	COBJMACROS

Typedefs
typedef struct IEnumPinsImpl	IEnumPinsImpl

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (strmbase)
static IEnumPinsImpl *	impl_from_IEnumPins (IEnumPins *iface)
HRESULT WINAPI	EnumPins_Construct (BaseFilter *base, BaseFilter_GetPin receive_pin, BaseFilter_GetPinCount receive_pincount, BaseFilter_GetPinVersion receive_version, IEnumPins **ppEnum)
static HRESULT WINAPI	IEnumPinsImpl_QueryInterface (IEnumPins *iface, REFIID riid, LPVOID *ppv)
static ULONG WINAPI	IEnumPinsImpl_AddRef (IEnumPins *iface)
static ULONG WINAPI	IEnumPinsImpl_Release (IEnumPins *iface)
static HRESULT WINAPI	IEnumPinsImpl_Next (IEnumPins *iface, ULONG cPins, IPin **ppPins, ULONG *pcFetched)
static HRESULT WINAPI	IEnumPinsImpl_Skip (IEnumPins *iface, ULONG cPins)
static HRESULT WINAPI	IEnumPinsImpl_Reset (IEnumPins *iface)
static HRESULT WINAPI	IEnumPinsImpl_Clone (IEnumPins *iface, IEnumPins **ppEnum)

Variables
static const struct IEnumPinsVtbl	IEnumPinsImpl_Vtbl

Macro Definition Documentation

COBJMACROS

#define COBJMACROS

Definition at line 22 of file enumpins.c.

Typedef Documentation

IEnumPinsImpl

typedef struct IEnumPinsImpl IEnumPinsImpl

Function Documentation

EnumPins_Construct()

HRESULT WINAPI EnumPins_Construct	(	BaseFilter *	base,
		BaseFilter_GetPin	receive_pin,
		BaseFilter_GetPinCount	receive_pincount,
		BaseFilter_GetPinVersion	receive_version,
		IEnumPins **	ppEnum
	)

Definition at line 49 of file enumpins.c.

{
    IEnumPinsImpl * pEnumPins;
 
    if (!ppEnum)
        return E_POINTER;
 
    pEnumPins = CoTaskMemAlloc(sizeof(IEnumPinsImpl));
    if (!pEnumPins)
    {
        *ppEnum = NULL;
        return E_OUTOFMEMORY;
    }
    pEnumPins->IEnumPins_iface.lpVtbl = &IEnumPinsImpl_Vtbl;
    pEnumPins->refCount = 1;
    pEnumPins->uIndex = 0;
    pEnumPins->receive_pin = receive_pin;
    pEnumPins->receive_pincount = receive_pincount;
    pEnumPins->receive_version = receive_version;
    pEnumPins->base = base;
    IBaseFilter_AddRef(&base->IBaseFilter_iface);
    *ppEnum = &pEnumPins->IEnumPins_iface;
    pEnumPins->Version = receive_version(base);
 
    TRACE("Created new enumerator (%p)\n", *ppEnum);
    return S_OK;
}

Referenced by BaseFilterImpl_EnumPins(), and IEnumPinsImpl_Clone().

IEnumPinsImpl_AddRef()

static ULONG WINAPI IEnumPinsImpl_AddRef ( IEnumPins *  iface )

static

Definition at line 99 of file enumpins.c.

{
    IEnumPinsImpl *This = impl_from_IEnumPins(iface);
    ULONG ref = InterlockedIncrement(&This->refCount);
 
    TRACE("(%p)->(): new ref =  %u\n", iface, ref);
 
    return ref;
}

IEnumPinsImpl_Clone()

static HRESULT WINAPI IEnumPinsImpl_Clone ( IEnumPins *  iface, IEnumPins **  ppEnum  )

static

Definition at line 193 of file enumpins.c.

{
    HRESULT hr;
    IEnumPinsImpl *This = impl_from_IEnumPins(iface);
 
    TRACE("(%p)->(%p)\n", iface, ppEnum);
 
    hr = EnumPins_Construct(This->base, This->receive_pin, This->receive_pincount, This->receive_version, ppEnum);
    if (FAILED(hr))
        return hr;
    return IEnumPins_Skip(*ppEnum, This->uIndex);
}

IEnumPinsImpl_Next()

static HRESULT WINAPI IEnumPinsImpl_Next ( IEnumPins *  iface, ULONG  cPins, IPin **  ppPins, ULONG *  pcFetched  )

static

Definition at line 125 of file enumpins.c.

{
    IEnumPinsImpl *This = impl_from_IEnumPins(iface);
    ULONG i = 0;
 
    TRACE("(%p)->(%u, %p, %p)\n", iface, cPins, ppPins, pcFetched);
 
    if (!ppPins)
        return E_POINTER;
 
    if (cPins > 1 && !pcFetched)
        return E_INVALIDARG;
 
    if (pcFetched)
        *pcFetched = 0;
 
    if (This->Version != This->receive_version(This->base))
        return VFW_E_ENUM_OUT_OF_SYNC;
 
    while (i < cPins)
    {
       IPin *pin;
       pin = This->receive_pin(This->base, This->uIndex + i);
 
       if (!pin)
         break;
       else
         ppPins[i] = pin;
       ++i;
    }
 
    if (pcFetched)
        *pcFetched = i;
    This->uIndex += i;
 
    if (i < cPins)
        return S_FALSE;
    return S_OK;
}

IEnumPinsImpl_QueryInterface()

static HRESULT WINAPI IEnumPinsImpl_QueryInterface ( IEnumPins *  iface, REFIID  riid, LPVOID *  ppv  )

static

Definition at line 77 of file enumpins.c.

{
    TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
 
    *ppv = NULL;
 
    if (IsEqualIID(riid, &IID_IUnknown))
        *ppv = iface;
    else if (IsEqualIID(riid, &IID_IEnumPins))
        *ppv = iface;
 
    if (*ppv)
    {
        IUnknown_AddRef((IUnknown *)(*ppv));
        return S_OK;
    }
 
    FIXME("No interface for %s!\n", debugstr_guid(riid));
 
    return E_NOINTERFACE;
}

IEnumPinsImpl_Release()

static ULONG WINAPI IEnumPinsImpl_Release ( IEnumPins *  iface )

static

Definition at line 109 of file enumpins.c.

{
    IEnumPinsImpl *This = impl_from_IEnumPins(iface);
    ULONG ref = InterlockedDecrement(&This->refCount);
 
    TRACE("(%p)->(): new ref = %u\n", iface, ref);
 
    if (!ref)
    {
        IBaseFilter_Release(&This->base->IBaseFilter_iface);
        CoTaskMemFree(This);
    }
 
    return ref;
}

IEnumPinsImpl_Reset()

static HRESULT WINAPI IEnumPinsImpl_Reset ( IEnumPins *  iface )

static

Definition at line 181 of file enumpins.c.

{
    IEnumPinsImpl *This = impl_from_IEnumPins(iface);
 
    TRACE("(%p)->()\n", iface);
 
    This->Version = This->receive_version(This->base);
 
    This->uIndex = 0;
    return S_OK;
}

IEnumPinsImpl_Skip()

static HRESULT WINAPI IEnumPinsImpl_Skip ( IEnumPins *  iface, ULONG  cPins  )

static

Definition at line 165 of file enumpins.c.

{
    IEnumPinsImpl *This = impl_from_IEnumPins(iface);
 
    TRACE("(%p)->(%u)\n", iface, cPins);
 
    if (This->Version != This->receive_version(This->base))
        return VFW_E_ENUM_OUT_OF_SYNC;
 
    if (This->receive_pincount(This->base) >= This->uIndex + cPins)
        return S_FALSE;
 
    This->uIndex += cPins;
    return S_OK;
}

impl_from_IEnumPins()

static IEnumPinsImpl * impl_from_IEnumPins ( IEnumPins *  iface )

inlinestatic

Definition at line 42 of file enumpins.c.

{
    return CONTAINING_RECORD(iface, IEnumPinsImpl, IEnumPins_iface);
}

Referenced by IEnumPinsImpl_AddRef(), IEnumPinsImpl_Clone(), IEnumPinsImpl_Next(), IEnumPinsImpl_Release(), IEnumPinsImpl_Reset(), and IEnumPinsImpl_Skip().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

strmbase

)

Variable Documentation

IEnumPinsImpl_Vtbl

static const IEnumPinsVtbl IEnumPinsImpl_Vtbl

static

Initial value:

=
{
    IEnumPinsImpl_QueryInterface,
    IEnumPinsImpl_AddRef,
    IEnumPinsImpl_Release,
    IEnumPinsImpl_Next,
    IEnumPinsImpl_Skip,
    IEnumPinsImpl_Reset,
    IEnumPinsImpl_Clone
}

Definition at line 47 of file enumpins.c.

Referenced by EnumPins_Construct().