filtermapper.c 50.3 KB
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/*
 * IFilterMapper & IFilterMapper2 Implementations
 *
 * Copyright 2003 Robert Shearman
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 * Copyright 2004 Christian Costa
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 *
 * 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
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

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#define NONAMELESSUNION
#define NONAMELESSSTRUCT
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#include <stdarg.h>

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#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winreg.h"
#include "winerror.h"

#include "quartz_private.h"

#include "ole2.h"
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#include "olectl.h"
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#include "strmif.h"
#include "wine/unicode.h"
#include "uuids.h"

#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(quartz);

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#define ARRAYSIZE(array) (sizeof(array)/sizeof((array)[0]))

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/* Unexposed IAMFilterData interface */
typedef struct IAMFilterData IAMFilterData;

typedef struct IAMFilterDataVtbl
{
    BEGIN_INTERFACE

    /*** IUnknown methods ***/
    HRESULT (STDMETHODCALLTYPE *QueryInterface)(
        IAMFilterData *This,
        REFIID riid,
        void **ppvObject);

    ULONG (STDMETHODCALLTYPE *AddRef)(
        IAMFilterData *This);

    ULONG (STDMETHODCALLTYPE *Release)(
        IAMFilterData *This);

    /*** IAMFilterData methods ***/
    HRESULT (STDMETHODCALLTYPE *ParseFilterData)(
        IAMFilterData *This,
        BYTE *pData,
        ULONG cb,
        BYTE **ppRegFilter2);

    HRESULT (STDMETHODCALLTYPE *CreateFilterData)(
        IAMFilterData* This,
        REGFILTER2 *prf2,
        BYTE **pRegFilterData,
        ULONG *pcb);

    END_INTERFACE
} IAMFilterDataVtbl;
struct IAMFilterData
{
    const IAMFilterDataVtbl *lpVtbl;
};
const GUID IID_IAMFilterData = {
 0x97f7c4d4, 0x547b, 0x4a5f, { 0x83,0x32, 0x53,0x64,0x30,0xad,0x2e,0x4d }
};


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typedef struct FilterMapper2Impl
{
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    const IFilterMapper2Vtbl *lpVtbl;
    const IFilterMapperVtbl  *lpVtblFilterMapper;
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    const IAMFilterDataVtbl  *lpVtblAMFilterData;
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    LONG refCount;
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} FilterMapper2Impl;

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static const IFilterMapper2Vtbl fm2vtbl;
static const IFilterMapperVtbl fmvtbl;
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static const IAMFilterDataVtbl AMFilterDataVtbl;
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static inline FilterMapper2Impl *impl_from_IFilterMapper( IFilterMapper *iface )
{
    return (FilterMapper2Impl *)((char*)iface - FIELD_OFFSET(FilterMapper2Impl, lpVtblFilterMapper));
}
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static inline FilterMapper2Impl *impl_from_IAMFilterData( IAMFilterData *iface )
{
    return (FilterMapper2Impl *)((char*)iface - FIELD_OFFSET(FilterMapper2Impl, lpVtblAMFilterData));
}

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static const WCHAR wszClsidSlash[] = {'C','L','S','I','D','\\',0};
static const WCHAR wszSlashInstance[] = {'\\','I','n','s','t','a','n','c','e','\\',0};
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static const WCHAR wszSlash[] = {'\\',0};
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/* CLSID property in media category Moniker */
static const WCHAR wszClsidName[] = {'C','L','S','I','D',0};
/* FriendlyName property in media category Moniker */
static const WCHAR wszFriendlyName[] = {'F','r','i','e','n','d','l','y','N','a','m','e',0};
/* Merit property in media category Moniker (CLSID_ActiveMovieCategories only) */
static const WCHAR wszMeritName[] = {'M','e','r','i','t',0};
/* FilterData property in media category Moniker (not CLSID_ActiveMovieCategories) */
static const WCHAR wszFilterDataName[] = {'F','i','l','t','e','r','D','a','t','a',0};
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/* For filters registered with IFilterMapper */
static const WCHAR wszFilterSlash[] = {'F','i','l','t','e','r','\\',0};
static const WCHAR wszFilter[] = {'F','i','l','t','e','r',0};
/* For pins registered with IFilterMapper */
static const WCHAR wszPins[] = {'P','i','n','s',0};
static const WCHAR wszAllowedMany[] = {'A','l','l','o','w','e','d','M','a','n','y',0};
static const WCHAR wszAllowedZero[] = {'A','l','l','o','w','e','d','Z','e','r','o',0};
static const WCHAR wszDirection[] = {'D','i','r','e','c','t','i','o','n',0};
static const WCHAR wszIsRendered[] = {'I','s','R','e','n','d','e','r','e','d',0};
/* For types registered with IFilterMapper */
static const WCHAR wszTypes[] = {'T','y','p','e','s',0};

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/* registry format for REGFILTER2 */
struct REG_RF
{
    DWORD dwVersion;
    DWORD dwMerit;
    DWORD dwPins;
    DWORD dwUnused;
};

struct REG_RFP
{
    BYTE signature[4]; /* e.g. "0pi3" */
    DWORD dwFlags;
    DWORD dwInstances;
    DWORD dwMediaTypes;
    DWORD dwMediums;
    DWORD bCategory; /* is there a category clsid? */
    /* optional: dwOffsetCategoryClsid */
};

struct REG_TYPE
{
    BYTE signature[4]; /* e.g. "0ty3" */
    DWORD dwUnused;
    DWORD dwOffsetMajor;
    DWORD dwOffsetMinor;
};

struct MONIKER_MERIT
{
    IMoniker * pMoniker;
    DWORD dwMerit;
};

struct Vector
{
    LPBYTE pData;
    int capacity; /* in bytes */
    int current; /* pointer to next free byte */
};

/* returns the position it was added at */
static int add_data(struct Vector * v, const BYTE * pData, int size)
{
    int index = v->current;
    if (v->current + size > v->capacity)
    {
        LPBYTE pOldData = v->pData;
        v->capacity = (v->capacity + size) * 2;
        v->pData = CoTaskMemAlloc(v->capacity);
        memcpy(v->pData, pOldData, v->current);
        CoTaskMemFree(pOldData);
    }
    memcpy(v->pData + v->current, pData, size);
    v->current += size;
    return index;
}

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static int find_data(const struct Vector * v, const BYTE * pData, int size)
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{
    int index;
    for (index = 0; index < v->current; index++)
        if (!memcmp(v->pData + index, pData, size))
            return index;
    /* not found */
    return -1;
}

static void delete_vector(struct Vector * v)
{
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    CoTaskMemFree(v->pData);
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    v->current = 0;
    v->capacity = 0;
}

HRESULT FilterMapper2_create(IUnknown *pUnkOuter, LPVOID *ppObj)
{
    FilterMapper2Impl * pFM2impl;

    TRACE("(%p, %p)\n", pUnkOuter, ppObj);

    if (pUnkOuter)
        return CLASS_E_NOAGGREGATION;

    pFM2impl = CoTaskMemAlloc(sizeof(*pFM2impl));
    if (!pFM2impl)
        return E_OUTOFMEMORY;

    pFM2impl->lpVtbl = &fm2vtbl;
    pFM2impl->lpVtblFilterMapper = &fmvtbl;
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    pFM2impl->lpVtblAMFilterData = &AMFilterDataVtbl;
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    pFM2impl->refCount = 1;

    *ppObj = pFM2impl;

    TRACE("-- created at %p\n", pFM2impl);

    return S_OK;
}

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HRESULT FilterMapper_create(IUnknown *pUnkOuter, LPVOID *ppObj)
{
    FilterMapper2Impl *pFM2impl;
    HRESULT hr;

    TRACE("(%p, %p)\n", pUnkOuter, ppObj);

    hr = FilterMapper2_create(pUnkOuter, (LPVOID*)&pFM2impl);
    if (FAILED(hr))
        return hr;

    *ppObj = &pFM2impl->lpVtblFilterMapper;

    return hr;
}

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/*** IUnknown methods ***/

static HRESULT WINAPI FilterMapper2_QueryInterface(IFilterMapper2 * iface, REFIID riid, LPVOID *ppv)
{
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    FilterMapper2Impl *This = (FilterMapper2Impl *)iface;
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    TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);

    *ppv = NULL;

    if (IsEqualIID(riid, &IID_IUnknown))
        *ppv = iface;
    else if (IsEqualIID(riid, &IID_IFilterMapper2))
        *ppv = iface;
    else if (IsEqualIID(riid, &IID_IFilterMapper))
        *ppv = &This->lpVtblFilterMapper;
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    else if (IsEqualIID(riid, &IID_IAMFilterData))
        *ppv = &This->lpVtblAMFilterData;
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    if (*ppv != NULL)
    {
        IUnknown_AddRef((IUnknown *)*ppv);
        return S_OK;
    }

    FIXME("No interface for %s\n", debugstr_guid(riid));
    return E_NOINTERFACE;
}

static ULONG WINAPI FilterMapper2_AddRef(IFilterMapper2 * iface)
{
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    FilterMapper2Impl *This = (FilterMapper2Impl *)iface;
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    ULONG refCount = InterlockedIncrement(&This->refCount);
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    TRACE("(%p)->() AddRef from %d\n", This, refCount - 1);
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    return refCount;
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}

static ULONG WINAPI FilterMapper2_Release(IFilterMapper2 * iface)
{
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    FilterMapper2Impl *This = (FilterMapper2Impl *)iface;
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    ULONG refCount = InterlockedDecrement(&This->refCount);
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    TRACE("(%p)->() Release from %d\n", This, refCount + 1);
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    if (refCount == 0)
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    {
        CoTaskMemFree(This);
        return 0;
    }
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    return refCount;
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}

/*** IFilterMapper2 methods ***/

static HRESULT WINAPI FilterMapper2_CreateCategory(
    IFilterMapper2 * iface,
    REFCLSID clsidCategory,
    DWORD dwCategoryMerit,
    LPCWSTR szDescription)
{
    LPWSTR wClsidAMCat = NULL;
    LPWSTR wClsidCategory = NULL;
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    WCHAR wszKeyName[ARRAYSIZE(wszClsidSlash)-1 + ARRAYSIZE(wszSlashInstance)-1 + (CHARS_IN_GUID-1) * 2 + 1];
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    HKEY hKey = NULL;
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    LONG lRet;
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    HRESULT hr;

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    TRACE("(%s, %x, %s)\n", debugstr_guid(clsidCategory), dwCategoryMerit, debugstr_w(szDescription));
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    hr = StringFromCLSID(&CLSID_ActiveMovieCategories, &wClsidAMCat);

    if (SUCCEEDED(hr))
    {
        hr = StringFromCLSID(clsidCategory, &wClsidCategory);
    }

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszClsidSlash);
        strcatW(wszKeyName, wClsidAMCat);
        strcatW(wszKeyName, wszSlashInstance);
        strcatW(wszKeyName, wClsidCategory);

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        lRet = RegCreateKeyExW(HKEY_CLASSES_ROOT, wszKeyName, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL);
        hr = HRESULT_FROM_WIN32(lRet);
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    }

    if (SUCCEEDED(hr))
    {
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        lRet = RegSetValueExW(hKey, wszFriendlyName, 0, REG_SZ, (const BYTE*)szDescription, (strlenW(szDescription) + 1) * sizeof(WCHAR));
        hr = HRESULT_FROM_WIN32(lRet);
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    }

    if (SUCCEEDED(hr))
    {
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        lRet = RegSetValueExW(hKey, wszClsidName, 0, REG_SZ, (LPBYTE)wClsidCategory, (strlenW(wClsidCategory) + 1) * sizeof(WCHAR));
        hr = HRESULT_FROM_WIN32(lRet);
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    }

    if (SUCCEEDED(hr))
    {
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        lRet = RegSetValueExW(hKey, wszMeritName, 0, REG_DWORD, (LPBYTE)&dwCategoryMerit, sizeof(dwCategoryMerit));
        hr = HRESULT_FROM_WIN32(lRet);
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    }

    CloseHandle(hKey);
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    CoTaskMemFree(wClsidCategory);
    CoTaskMemFree(wClsidAMCat);
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    return hr;
}

static HRESULT WINAPI FilterMapper2_UnregisterFilter(
    IFilterMapper2 * iface,
    const CLSID *pclsidCategory,
    const OLECHAR *szInstance,
    REFCLSID Filter)
{
    WCHAR wszKeyName[MAX_PATH];
    LPWSTR wClsidCategory = NULL;
    LPWSTR wFilter = NULL;
    HRESULT hr;

    TRACE("(%p, %s, %s)\n", pclsidCategory, debugstr_w(szInstance), debugstr_guid(Filter));

    if (!pclsidCategory)
        pclsidCategory = &CLSID_LegacyAmFilterCategory;

    hr = StringFromCLSID(pclsidCategory, &wClsidCategory);

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszClsidSlash);
        strcatW(wszKeyName, wClsidCategory);
        strcatW(wszKeyName, wszSlashInstance);
        if (szInstance)
            strcatW(wszKeyName, szInstance);
        else
        {
            hr = StringFromCLSID(Filter, &wFilter);
            if (SUCCEEDED(hr))
                strcatW(wszKeyName, wFilter);
        }
    }

    if (SUCCEEDED(hr))
    {
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        LONG lRet = RegDeleteKeyW(HKEY_CLASSES_ROOT, wszKeyName);
        hr = HRESULT_FROM_WIN32(lRet);
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    }

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    CoTaskMemFree(wClsidCategory);
    CoTaskMemFree(wFilter);
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    return hr;
}

static HRESULT FM2_WriteFriendlyName(IPropertyBag * pPropBag, LPCWSTR szName)
{
    VARIANT var;

    V_VT(&var) = VT_BSTR;
    V_UNION(&var, bstrVal) = (BSTR)szName;

    return IPropertyBag_Write(pPropBag, wszFriendlyName, &var);
}

static HRESULT FM2_WriteClsid(IPropertyBag * pPropBag, REFCLSID clsid)
{
    LPWSTR wszClsid = NULL;
    VARIANT var;
    HRESULT hr;

    hr = StringFromCLSID(clsid, &wszClsid);

    if (SUCCEEDED(hr))
    {
        V_VT(&var) = VT_BSTR;
        V_UNION(&var, bstrVal) = wszClsid;
        hr = IPropertyBag_Write(pPropBag, wszClsidName, &var);
    }
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    CoTaskMemFree(wszClsid);
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    return hr;
}

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static HRESULT FM2_WriteFilterData(const REGFILTER2 * prf2, BYTE **ppData, ULONG *pcbData)
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{
    int size = sizeof(struct REG_RF);
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    unsigned int i;
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    struct Vector mainStore = {NULL, 0, 0};
    struct Vector clsidStore = {NULL, 0, 0};
    struct REG_RF rrf;
    HRESULT hr = S_OK;

    rrf.dwVersion = prf2->dwVersion;
    rrf.dwMerit = prf2->dwMerit;
    rrf.dwPins = prf2->u.s1.cPins2;
    rrf.dwUnused = 0;

    add_data(&mainStore, (LPBYTE)&rrf, sizeof(rrf));

    for (i = 0; i < prf2->u.s1.cPins2; i++)
    {
        size += sizeof(struct REG_RFP);
        if (prf2->u.s1.rgPins2[i].clsPinCategory)
            size += sizeof(DWORD);
        size += prf2->u.s1.rgPins2[i].nMediaTypes * sizeof(struct REG_TYPE);
        size += prf2->u.s1.rgPins2[i].nMediums * sizeof(DWORD);
    }

    for (i = 0; i < prf2->u.s1.cPins2; i++)
    {
        struct REG_RFP rrfp;
        REGFILTERPINS2 rgPin2 = prf2->u.s1.rgPins2[i];
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        unsigned int j;
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        rrfp.signature[0] = '0';
        rrfp.signature[1] = 'p';
        rrfp.signature[2] = 'i';
        rrfp.signature[3] = '3';
        rrfp.signature[0] += i;
        rrfp.dwFlags = rgPin2.dwFlags;
        rrfp.dwInstances = rgPin2.cInstances;
        rrfp.dwMediaTypes = rgPin2.nMediaTypes;
        rrfp.dwMediums = rgPin2.nMediums;
        rrfp.bCategory = rgPin2.clsPinCategory ? 1 : 0;

        add_data(&mainStore, (LPBYTE)&rrfp, sizeof(rrfp));
        if (rrfp.bCategory)
        {
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            DWORD index = find_data(&clsidStore, (const BYTE*)rgPin2.clsPinCategory, sizeof(CLSID));
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            if (index == -1)
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                index = add_data(&clsidStore, (const BYTE*)rgPin2.clsPinCategory, sizeof(CLSID));
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            index += size;

            add_data(&mainStore, (LPBYTE)&index, sizeof(index));
        }

        for (j = 0; j < rgPin2.nMediaTypes; j++)
        {
            struct REG_TYPE rt;
            rt.signature[0] = '0';
            rt.signature[1] = 't';
            rt.signature[2] = 'y';
            rt.signature[3] = '3';
            rt.signature[0] += j;

            rt.dwUnused = 0;
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            rt.dwOffsetMajor = find_data(&clsidStore, (const BYTE*)rgPin2.lpMediaType[j].clsMajorType, sizeof(CLSID));
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            if (rt.dwOffsetMajor == -1)
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                rt.dwOffsetMajor = add_data(&clsidStore, (const BYTE*)rgPin2.lpMediaType[j].clsMajorType, sizeof(CLSID));
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            rt.dwOffsetMajor += size;
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            rt.dwOffsetMinor = find_data(&clsidStore, (const BYTE*)rgPin2.lpMediaType[j].clsMinorType, sizeof(CLSID));
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            if (rt.dwOffsetMinor == -1)
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                rt.dwOffsetMinor = add_data(&clsidStore, (const BYTE*)rgPin2.lpMediaType[j].clsMinorType, sizeof(CLSID));
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            rt.dwOffsetMinor += size;

            add_data(&mainStore, (LPBYTE)&rt, sizeof(rt));
        }

        for (j = 0; j < rgPin2.nMediums; j++)
        {
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            DWORD index = find_data(&clsidStore, (const BYTE*)(rgPin2.lpMedium + j), sizeof(REGPINMEDIUM));
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            if (index == -1)
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                index = add_data(&clsidStore, (const BYTE*)(rgPin2.lpMedium + j), sizeof(REGPINMEDIUM));
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            index += size;

            add_data(&mainStore, (LPBYTE)&index, sizeof(index));
        }
    }

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    if (SUCCEEDED(hr))
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    {
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        *pcbData = mainStore.current + clsidStore.current;
        *ppData = CoTaskMemAlloc(*pcbData);
        if (!*ppData)
            hr = E_OUTOFMEMORY;
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    }

    if (SUCCEEDED(hr))
    {
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        memcpy(*ppData, mainStore.pData, mainStore.current);
        memcpy((*ppData) + mainStore.current, clsidStore.pData, clsidStore.current);
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    }

    delete_vector(&mainStore);
    delete_vector(&clsidStore);
    return hr;
}

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static HRESULT FM2_ReadFilterData(BYTE *pData, REGFILTER2 * prf2)
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{
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    HRESULT hr = S_OK;
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    struct REG_RF * prrf;
    LPBYTE pCurrent;
    DWORD i;
    REGFILTERPINS2 * rgPins2;

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    prrf = (struct REG_RF *)pData;
    pCurrent = pData;
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    if (prrf->dwVersion != 2)
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    {
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        FIXME("Filter registry version %d not supported\n", prrf->dwVersion);
        ZeroMemory(prf2, sizeof(*prf2));
        hr = E_FAIL;
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    }

    if (SUCCEEDED(hr))
    {
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        TRACE("version = %d, merit = %x, #pins = %d, unused = %x\n",
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            prrf->dwVersion, prrf->dwMerit, prrf->dwPins, prrf->dwUnused);

        prf2->dwVersion = prrf->dwVersion;
        prf2->dwMerit = prrf->dwMerit;
        prf2->u.s1.cPins2 = prrf->dwPins;
        rgPins2 = CoTaskMemAlloc(prrf->dwPins * sizeof(*rgPins2));
        prf2->u.s1.rgPins2 = rgPins2;
        pCurrent += sizeof(struct REG_RF);

        for (i = 0; i < prrf->dwPins; i++)
        {
            struct REG_RFP * prrfp = (struct REG_RFP *)pCurrent;
            REGPINTYPES * lpMediaType;
            REGPINMEDIUM * lpMedium;
            UINT j;

            /* FIXME: check signature */

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            TRACE("\tsignature = %s\n", debugstr_an((const char*)prrfp->signature, 4));
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            TRACE("\tpin[%d]: flags = %x, instances = %d, media types = %d, mediums = %d\n",
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                i, prrfp->dwFlags, prrfp->dwInstances, prrfp->dwMediaTypes, prrfp->dwMediums);

            rgPins2[i].dwFlags = prrfp->dwFlags;
            rgPins2[i].cInstances = prrfp->dwInstances;
            rgPins2[i].nMediaTypes = prrfp->dwMediaTypes;
            rgPins2[i].nMediums = prrfp->dwMediums;
            pCurrent += sizeof(struct REG_RFP);
            if (prrfp->bCategory)
            {
                CLSID * clsCat = CoTaskMemAlloc(sizeof(CLSID));
                memcpy(clsCat, pData + *(DWORD*)(pCurrent), sizeof(CLSID));
                pCurrent += sizeof(DWORD);
                rgPins2[i].clsPinCategory = clsCat;
            }
            else
                rgPins2[i].clsPinCategory = NULL;

            if (rgPins2[i].nMediaTypes > 0)
                lpMediaType = CoTaskMemAlloc(rgPins2[i].nMediaTypes * sizeof(*lpMediaType));
            else
                lpMediaType = NULL;

            rgPins2[i].lpMediaType = lpMediaType;

            for (j = 0; j < rgPins2[i].nMediaTypes; j++)
            {
                struct REG_TYPE * prt = (struct REG_TYPE *)pCurrent;
                CLSID * clsMajor = CoTaskMemAlloc(sizeof(CLSID));
                CLSID * clsMinor = CoTaskMemAlloc(sizeof(CLSID));

                /* FIXME: check signature */
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                TRACE("\t\tsignature = %s\n", debugstr_an((const char*)prt->signature, 4));
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                memcpy(clsMajor, pData + prt->dwOffsetMajor, sizeof(CLSID));
                memcpy(clsMinor, pData + prt->dwOffsetMinor, sizeof(CLSID));

                lpMediaType[j].clsMajorType = clsMajor;
                lpMediaType[j].clsMinorType = clsMinor;

                pCurrent += sizeof(*prt);
            }

            if (rgPins2[i].nMediums > 0)
                lpMedium = CoTaskMemAlloc(rgPins2[i].nMediums * sizeof(*lpMedium));
            else
                lpMedium = NULL;

            rgPins2[i].lpMedium = lpMedium;

            for (j = 0; j < rgPins2[i].nMediums; j++)
            {
                DWORD dwOffset = *(DWORD *)pCurrent;

                memcpy(lpMedium + j, pData + dwOffset, sizeof(REGPINMEDIUM));

                pCurrent += sizeof(dwOffset);
            }
        }

    }

    return hr;
}

static void FM2_DeleteRegFilter(REGFILTER2 * prf2)
{
    UINT i;
    for (i = 0; i < prf2->u.s1.cPins2; i++)
    {
        UINT j;
        if (prf2->u.s1.rgPins2[i].clsPinCategory)
            CoTaskMemFree((LPVOID)prf2->u.s1.rgPins2[i].clsPinCategory);

        for (j = 0; j < prf2->u.s1.rgPins2[i].nMediaTypes; j++)
        {
            CoTaskMemFree((LPVOID)prf2->u.s1.rgPins2[i].lpMediaType[j].clsMajorType);
            CoTaskMemFree((LPVOID)prf2->u.s1.rgPins2[i].lpMediaType[j].clsMinorType);
        }
        CoTaskMemFree((LPVOID)prf2->u.s1.rgPins2[i].lpMedium);
    }
}

static HRESULT WINAPI FilterMapper2_RegisterFilter(
    IFilterMapper2 * iface,
    REFCLSID clsidFilter,
    LPCWSTR szName,
    IMoniker **ppMoniker,
    const CLSID *pclsidCategory,
    const OLECHAR *szInstance,
    const REGFILTER2 *prf2)
{
    IParseDisplayName * pParser = NULL;
    IBindCtx * pBindCtx = NULL;
    IMoniker * pMoniker = NULL;
    IPropertyBag * pPropBag = NULL;
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    HRESULT hr;
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    LPWSTR pwszParseName = NULL;
    LPWSTR pCurrent;
    static const WCHAR wszDevice[] = {'@','d','e','v','i','c','e',':','s','w',':',0};
    int nameLen;
    ULONG ulEaten;
    LPWSTR szClsidTemp = NULL;
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    REGFILTER2 regfilter2;
    REGFILTERPINS2* pregfp2 = NULL;
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    TRACE("(%s, %s, %p, %s, %s, %p)\n",
        debugstr_guid(clsidFilter),
        debugstr_w(szName),
        ppMoniker,
        debugstr_guid(pclsidCategory),
        debugstr_w(szInstance),
        prf2);

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    if (prf2->dwVersion == 2)
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    {
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        regfilter2 = *prf2;
    }
    else if (prf2->dwVersion == 1)
    {
        ULONG i;
        DWORD flags;
        /* REGFILTER2 structure is converted from version 1 to 2. Tested on Win2k. */
        regfilter2.dwVersion = 2;
        regfilter2.dwMerit = prf2->dwMerit;
        regfilter2.u.s1.cPins2 = prf2->u.s.cPins;
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        pregfp2 = CoTaskMemAlloc(prf2->u.s.cPins * sizeof(REGFILTERPINS2));
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        regfilter2.u.s1.rgPins2 = pregfp2;
        for (i = 0; i < prf2->u.s.cPins; i++)
        {
            flags = 0;
            if (prf2->u.s.rgPins[i].bRendered)
                flags |= REG_PINFLAG_B_RENDERER;
            if (prf2->u.s.rgPins[i].bOutput)
                flags |= REG_PINFLAG_B_OUTPUT;
            if (prf2->u.s.rgPins[i].bZero)
                flags |= REG_PINFLAG_B_ZERO;
            if (prf2->u.s.rgPins[i].bMany)
                flags |= REG_PINFLAG_B_MANY;
            pregfp2[i].dwFlags = flags;
            pregfp2[i].cInstances = 1;
            pregfp2[i].nMediaTypes = prf2->u.s.rgPins[i].nMediaTypes;
            pregfp2[i].lpMediaType = prf2->u.s.rgPins[i].lpMediaType;
            pregfp2[i].nMediums = 0;
            pregfp2[i].lpMedium = NULL;
            pregfp2[i].clsPinCategory = NULL;
        }
    }
    else
    {
        FIXME("dwVersion other that 1 or 2 not supported at the moment\n");
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        return E_NOTIMPL;
    }

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    if (ppMoniker)
        *ppMoniker = NULL;

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    if (!pclsidCategory)
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        /* MSDN mentions the inexistent CLSID_ActiveMovieFilters GUID.
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         * In fact this is the CLSID_LegacyAmFilterCategory one */
        pclsidCategory = &CLSID_LegacyAmFilterCategory;
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    /* sizeof... will include the null terminator and
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     * the + 1 is for the separator ('\\'). The -1 is
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     * because CHARS_IN_GUID includes the null terminator
     */
    nameLen = sizeof(wszDevice)/sizeof(wszDevice[0]) + CHARS_IN_GUID - 1 + 1;

    if (szInstance)
        nameLen += strlenW(szInstance);
    else
        nameLen += CHARS_IN_GUID - 1; /* CHARS_IN_GUID includes null terminator */

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    pCurrent = pwszParseName = CoTaskMemAlloc(nameLen*sizeof(WCHAR));
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    if (!pwszParseName)
        return E_OUTOFMEMORY;

    strcpyW(pwszParseName, wszDevice);
    pCurrent += strlenW(wszDevice);

    hr = StringFromCLSID(pclsidCategory, &szClsidTemp);

    if (SUCCEEDED(hr))
    {
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        memcpy(pCurrent, szClsidTemp, CHARS_IN_GUID * sizeof(WCHAR));
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        pCurrent += CHARS_IN_GUID - 1;
        pCurrent[0] = '\\';

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        if (szInstance)
            strcpyW(pCurrent+1, szInstance);
        else
        {
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            CoTaskMemFree(szClsidTemp);
            szClsidTemp = NULL;

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            hr = StringFromCLSID(clsidFilter, &szClsidTemp);
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            if (SUCCEEDED(hr))
                strcpyW(pCurrent+1, szClsidTemp);
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        }
    }

    if (SUCCEEDED(hr))
        hr = CoCreateInstance(&CLSID_CDeviceMoniker, NULL, CLSCTX_INPROC, &IID_IParseDisplayName, (LPVOID *)&pParser);

    if (SUCCEEDED(hr))
        hr = CreateBindCtx(0, &pBindCtx);

    if (SUCCEEDED(hr))
        hr = IParseDisplayName_ParseDisplayName(pParser, pBindCtx, pwszParseName, &ulEaten, &pMoniker);

    if (pBindCtx)
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        IBindCtx_Release(pBindCtx);
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    if (pParser)
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        IParseDisplayName_Release(pParser);
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    if (SUCCEEDED(hr))
        hr = IMoniker_BindToStorage(pMoniker, NULL, NULL, &IID_IPropertyBag, (LPVOID)&pPropBag);

    if (SUCCEEDED(hr))
        hr = FM2_WriteFriendlyName(pPropBag, szName);

    if (SUCCEEDED(hr))
        hr = FM2_WriteClsid(pPropBag, clsidFilter);

    if (SUCCEEDED(hr))
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    {
        BYTE *pData;
        ULONG cbData;

        hr = FM2_WriteFilterData(&regfilter2, &pData, &cbData);
        if (SUCCEEDED(hr))
        {
            VARIANT var;
            SAFEARRAY *psa;
            SAFEARRAYBOUND saBound;

            saBound.lLbound = 0;
            saBound.cElements = cbData;
            psa = SafeArrayCreate(VT_UI1, 1, &saBound);
            if (!psa)
            {
                ERR("Couldn't create SAFEARRAY\n");
                hr = E_FAIL;
            }

            if (SUCCEEDED(hr))
            {
                LPBYTE pbSAData;
                hr = SafeArrayAccessData(psa, (LPVOID *)&pbSAData);
                if (SUCCEEDED(hr))
                {
                    memcpy(pbSAData, pData, cbData);
                    hr = SafeArrayUnaccessData(psa);
                }
            }

            V_VT(&var) = VT_ARRAY | VT_UI1;
            V_UNION(&var, parray) = psa;

            if (SUCCEEDED(hr))
                hr = IPropertyBag_Write(pPropBag, wszFilterDataName, &var);

            if (psa)
                SafeArrayDestroy(psa);
            CoTaskMemFree(pData);
        }
    }
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    if (pPropBag)
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        IPropertyBag_Release(pPropBag);
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    CoTaskMemFree(szClsidTemp);
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    if (SUCCEEDED(hr) && ppMoniker)
        *ppMoniker = pMoniker;
    else if (pMoniker)
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        IMoniker_Release(pMoniker);

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    CoTaskMemFree(pregfp2);
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    TRACE("-- returning %x\n", hr);
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    return hr;
}

/* internal helper function */
static BOOL MatchTypes(
    BOOL bExactMatch,
    DWORD nPinTypes,
    const REGPINTYPES * pPinTypes,
    DWORD nMatchTypes,
    const GUID * pMatchTypes)
{
    BOOL bMatch = FALSE;
    DWORD j;

    if ((nMatchTypes == 0) && (nPinTypes > 0))
        bMatch = TRUE;

    for (j = 0; j < nPinTypes; j++)
    {
        DWORD i;
        for (i = 0; i < nMatchTypes*2; i+=2)
        {
            if (((!bExactMatch && IsEqualGUID(pPinTypes[j].clsMajorType, &GUID_NULL)) || IsEqualGUID(&pMatchTypes[i], &GUID_NULL) || IsEqualGUID(pPinTypes[j].clsMajorType, &pMatchTypes[i])) &&
                ((!bExactMatch && IsEqualGUID(pPinTypes[j].clsMinorType, &GUID_NULL)) || IsEqualGUID(&pMatchTypes[i+1], &GUID_NULL) || IsEqualGUID(pPinTypes[j].clsMinorType, &pMatchTypes[i+1])))
            {
                bMatch = TRUE;
                break;
            }
        }
    }
    return bMatch;
}

/* internal helper function for qsort of MONIKER_MERIT array */
static int mm_compare(const void * left, const void * right)
{
Eric Pouech's avatar
Eric Pouech committed
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    const struct MONIKER_MERIT * mmLeft = (const struct MONIKER_MERIT *)left;
    const struct MONIKER_MERIT * mmRight = (const struct MONIKER_MERIT *)right;
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    if (mmLeft->dwMerit == mmRight->dwMerit)
        return 0;
    if (mmLeft->dwMerit > mmRight->dwMerit)
        return -1;
    return 1;
}

/* NOTES:
 *   Exact match means whether or not to treat GUID_NULL's in filter data as wild cards
 *    (GUID_NULL's in input to function automatically treated as wild cards)
 *   Input/Output needed means match only on criteria if TRUE (with zero input types
 *    meaning match any input/output pin as long as one exists), otherwise match any
 *    filter that meets the rest of the requirements.
 */
static HRESULT WINAPI FilterMapper2_EnumMatchingFilters(
    IFilterMapper2 * iface,
    IEnumMoniker **ppEnum,
    DWORD dwFlags,
    BOOL bExactMatch,
    DWORD dwMerit,
    BOOL bInputNeeded,
    DWORD cInputTypes,
    const GUID *pInputTypes,
    const REGPINMEDIUM *pMedIn,
    const CLSID *pPinCategoryIn,
    BOOL bRender,
    BOOL bOutputNeeded,
    DWORD cOutputTypes,
    const GUID *pOutputTypes,
    const REGPINMEDIUM *pMedOut,
    const CLSID *pPinCategoryOut)
{
    ICreateDevEnum * pCreateDevEnum;
    IMoniker * pMonikerCat;
    IEnumMoniker * pEnumCat;
    HRESULT hr;
    struct Vector monikers = {NULL, 0, 0};

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    TRACE("(%p, %x, %s, %x, %s, %d, %p, %p, %p, %s, %s, %p, %p, %p)\n",
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        ppEnum,
        dwFlags,
        bExactMatch ? "true" : "false",
        dwMerit,
        bInputNeeded ? "true" : "false",
        cInputTypes,
        pInputTypes,
        pMedIn,
        pPinCategoryIn,
        bRender ? "true" : "false",
        bOutputNeeded ? "true" : "false",
        pOutputTypes,
        pMedOut,
        pPinCategoryOut);

    if (dwFlags != 0)
    {
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        FIXME("dwFlags = %x not implemented\n", dwFlags);
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    }

    *ppEnum = NULL;

    hr = CoCreateInstance(&CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC, &IID_ICreateDevEnum, (LPVOID*)&pCreateDevEnum);
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    if (FAILED(hr))
        return hr;
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    hr = ICreateDevEnum_CreateClassEnumerator(pCreateDevEnum, &CLSID_ActiveMovieCategories, &pEnumCat, 0);
    if (FAILED(hr)) {
        ICreateDevEnum_Release(pCreateDevEnum);
        return hr;
    }
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    while (IEnumMoniker_Next(pEnumCat, 1, &pMonikerCat, NULL) == S_OK)
    {
        IPropertyBag * pPropBagCat = NULL;
        VARIANT var;
        HRESULT hrSub; /* this is so that one buggy filter
                          doesn't make the whole lot fail */

        VariantInit(&var);

        hrSub = IMoniker_BindToStorage(pMonikerCat, NULL, NULL, &IID_IPropertyBag, (LPVOID*)&pPropBagCat);

        if (SUCCEEDED(hrSub))
            hrSub = IPropertyBag_Read(pPropBagCat, wszMeritName, &var, NULL);

        if (SUCCEEDED(hrSub) && (V_UNION(&var, ulVal) >= dwMerit))
        {
            CLSID clsidCat;
            IEnumMoniker * pEnum;
            IMoniker * pMoniker;

            VariantClear(&var);

            if (TRACE_ON(quartz))
            {
                VARIANT temp;
                V_VT(&temp) = VT_EMPTY;
                IPropertyBag_Read(pPropBagCat, wszFriendlyName, &temp, NULL);
                TRACE("Considering category %s\n", debugstr_w(V_UNION(&temp, bstrVal)));
                VariantClear(&temp);
            }

            hrSub = IPropertyBag_Read(pPropBagCat, wszClsidName, &var, NULL);

            if (SUCCEEDED(hrSub))
                hrSub = CLSIDFromString(V_UNION(&var, bstrVal), &clsidCat);

            if (SUCCEEDED(hrSub))
                hrSub = ICreateDevEnum_CreateClassEnumerator(pCreateDevEnum, &clsidCat, &pEnum, 0);

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            if (hrSub == S_OK)
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            {
                while (IEnumMoniker_Next(pEnum, 1, &pMoniker, NULL) == S_OK)
                {
                    IPropertyBag * pPropBag = NULL;
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                    VARIANT var;
                    BYTE *pData = NULL;
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                    REGFILTER2 rf2;
                    DWORD i;
                    BOOL bInputMatch = !bInputNeeded;
                    BOOL bOutputMatch = !bOutputNeeded;

                    ZeroMemory(&rf2, sizeof(rf2));
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                    VariantInit(&var);
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                    hrSub = IMoniker_BindToStorage(pMoniker, NULL, NULL, &IID_IPropertyBag, (LPVOID*)&pPropBag);

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                    if (TRACE_ON(quartz))
                    {
                        VARIANT temp;
                        V_VT(&temp) = VT_EMPTY;
                        IPropertyBag_Read(pPropBag, wszFriendlyName, &temp, NULL);
                        TRACE("Considering filter %s\n", debugstr_w(V_UNION(&temp, bstrVal)));
                        VariantClear(&temp);
                    }

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                    if (SUCCEEDED(hrSub))
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                    {
                        V_VT(&var) = VT_ARRAY | VT_UI1;
                        hrSub = IPropertyBag_Read(pPropBag, wszFilterDataName, &var, NULL);
                    }

                    if (SUCCEEDED(hrSub))
                        hrSub = SafeArrayAccessData(V_UNION(&var, parray), (LPVOID*)&pData);

                    if (SUCCEEDED(hrSub))
                        hrSub = FM2_ReadFilterData(pData, &rf2);

                    if (pData)
                        SafeArrayUnaccessData(V_UNION(&var, parray));

                    VariantClear(&var);
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                    /* Logic used for bInputMatch expression:
                     * There exists some pin such that bInputNeeded implies (pin is an input and
                     * (bRender implies pin has render flag) and major/minor types members of
                     * pInputTypes )
                     * bOutputMatch is similar, but without the "bRender implies ..." part
                     * and substituting variables names containing input for output
                     */

                    /* determine whether filter meets requirements */
                    if (SUCCEEDED(hrSub) && (rf2.dwMerit >= dwMerit))
                    {
                        for (i = 0; (i < rf2.u.s1.cPins2) && (!bInputMatch || !bOutputMatch); i++)
                        {
                            const REGFILTERPINS2 * rfp2 = rf2.u.s1.rgPins2 + i;

                            bInputMatch = bInputMatch || (!(rfp2->dwFlags & REG_PINFLAG_B_OUTPUT) &&
                                (!bRender || (rfp2->dwFlags & REG_PINFLAG_B_RENDERER)) &&
                                MatchTypes(bExactMatch, rfp2->nMediaTypes, rfp2->lpMediaType, cInputTypes, pInputTypes));
                            bOutputMatch = bOutputMatch || ((rfp2->dwFlags & REG_PINFLAG_B_OUTPUT) &&
                                MatchTypes(bExactMatch, rfp2->nMediaTypes, rfp2->lpMediaType, cOutputTypes, pOutputTypes));
                        }

                        if (bInputMatch && bOutputMatch)
                        {
                            struct MONIKER_MERIT mm = {pMoniker, rf2.dwMerit};
                            IMoniker_AddRef(pMoniker);
                            add_data(&monikers, (LPBYTE)&mm, sizeof(mm));
                        }
                    }

                    FM2_DeleteRegFilter(&rf2);
                    if (pPropBag)
                        IPropertyBag_Release(pPropBag);
                    IMoniker_Release(pMoniker);
                }
                IEnumMoniker_Release(pEnum);
            }
        }

        VariantClear(&var);
        if (pPropBagCat)
            IPropertyBag_Release(pPropBagCat);
        IMoniker_Release(pMonikerCat);
    }

    if (SUCCEEDED(hr))
    {
        IMoniker ** ppMoniker;
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        unsigned int i;
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        ULONG nMonikerCount = monikers.current / sizeof(struct MONIKER_MERIT);

        /* sort the monikers in descending merit order */
        qsort(monikers.pData, nMonikerCount,
              sizeof(struct MONIKER_MERIT),
              mm_compare);

        /* construct an IEnumMoniker interface */
        ppMoniker = CoTaskMemAlloc(nMonikerCount * sizeof(IMoniker *));
        for (i = 0; i < nMonikerCount; i++)
        {
            /* no need to AddRef here as already AddRef'd above */
            ppMoniker[i] = ((struct MONIKER_MERIT *)monikers.pData)[i].pMoniker;
        }
        hr = EnumMonikerImpl_Create(ppMoniker, nMonikerCount, ppEnum);
        CoTaskMemFree(ppMoniker);
    }

    delete_vector(&monikers);
    IEnumMoniker_Release(pEnumCat);
    ICreateDevEnum_Release(pCreateDevEnum);

    return hr;
}

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static const IFilterMapper2Vtbl fm2vtbl =
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{

    FilterMapper2_QueryInterface,
    FilterMapper2_AddRef,
    FilterMapper2_Release,

    FilterMapper2_CreateCategory,
    FilterMapper2_UnregisterFilter,
    FilterMapper2_RegisterFilter,
    FilterMapper2_EnumMatchingFilters
};

/*** IUnknown methods ***/

static HRESULT WINAPI FilterMapper_QueryInterface(IFilterMapper * iface, REFIID riid, LPVOID *ppv)
{
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    FilterMapper2Impl *This = impl_from_IFilterMapper(iface);
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    TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppv);

    return FilterMapper2_QueryInterface((IFilterMapper2*)&This->lpVtbl, riid, ppv);
}

static ULONG WINAPI FilterMapper_AddRef(IFilterMapper * iface)
{
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    FilterMapper2Impl *This = impl_from_IFilterMapper(iface);
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    return FilterMapper2_AddRef((IFilterMapper2*)This);
}

static ULONG WINAPI FilterMapper_Release(IFilterMapper * iface)
{
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    FilterMapper2Impl *This = impl_from_IFilterMapper(iface);
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    return FilterMapper2_Release((IFilterMapper2*)This);
}

/*** IFilterMapper methods ***/

static HRESULT WINAPI FilterMapper_EnumMatchingFilters(
    IFilterMapper * iface,
    IEnumRegFilters **ppEnum,
    DWORD dwMerit,
    BOOL bInputNeeded,
    CLSID clsInMaj,
    CLSID clsInSub,
    BOOL bRender,
    BOOL bOutputNeeded,
    CLSID clsOutMaj,
    CLSID clsOutSub)
{
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    FilterMapper2Impl *This = impl_from_IFilterMapper(iface);
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    GUID InputType[2];
    GUID OutputType[2];
    IEnumMoniker* ppEnumMoniker;
    IMoniker* IMon;
    ULONG nb;
    ULONG idx = 0, nb_mon = 0;
    REGFILTER* regfilters;
    HRESULT hr;

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    TRACE("(%p/%p)->(%p, %x, %s, %s, %s, %s, %s, %s, %s) stub!\n",
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        iface,This,
        ppEnum,
        dwMerit,
        bInputNeeded ? "true" : "false",
        debugstr_guid(&clsInMaj),
        debugstr_guid(&clsInSub),
        bRender ? "true" : "false",
        bOutputNeeded ? "true" : "false",
        debugstr_guid(&clsOutMaj),
        debugstr_guid(&clsOutSub));

    InputType[0] = clsInMaj;
    InputType[1] = clsInSub;
    OutputType[0] = clsOutMaj;
    OutputType[1] = clsOutSub;

    hr = IFilterMapper2_EnumMatchingFilters((IFilterMapper2*)This,
                                       &ppEnumMoniker,
                                       0,
                                       TRUE,
                                       dwMerit,
                                       bInputNeeded,
                                       1,
                                       InputType,
                                       NULL,
                                       &GUID_NULL,
                                       bRender,
                                       bOutputNeeded,
                                       1,
                                       OutputType,
                                       NULL,
                                       &GUID_NULL);

    if (!SUCCEEDED(hr))
        return hr;
    
    while(IEnumMoniker_Next(ppEnumMoniker, 1, &IMon, &nb) == S_OK)
    {
        IMoniker_Release(IMon);
        nb_mon++;
    }

    *ppEnum = NULL;
    if (!nb_mon)
    {
        IEnumMoniker_Release(ppEnumMoniker);
1241
        return IEnumRegFiltersImpl_Construct(NULL, 0, ppEnum);
1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268
    }

    regfilters = CoTaskMemAlloc(nb_mon * sizeof(REGFILTER));
    if (!regfilters)
    {
        IEnumMoniker_Release(ppEnumMoniker);
        return E_OUTOFMEMORY;
    }
    
    IEnumMoniker_Reset(ppEnumMoniker);
    while(IEnumMoniker_Next(ppEnumMoniker, 1, &IMon, &nb) == S_OK)
    {
        IPropertyBag * pPropBagCat = NULL;
        VARIANT var;
        HRESULT hrSub;
        GUID clsid;
        int len;

        VariantInit(&var);
        V_VT(&var) = VT_BSTR;

        hrSub = IMoniker_BindToStorage(IMon, NULL, NULL, &IID_IPropertyBag, (LPVOID*)&pPropBagCat);

        if (SUCCEEDED(hrSub))
            hrSub = IPropertyBag_Read(pPropBagCat, wszClsidName, &var, NULL);

        if (SUCCEEDED(hrSub))
1269
            hrSub = CLSIDFromString(V_UNION(&var, bstrVal), &clsid);
1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302

        if (SUCCEEDED(hrSub))
            hrSub = IPropertyBag_Read(pPropBagCat, wszFriendlyName, &var, NULL);

        if (SUCCEEDED(hrSub))
        {
            len = (strlenW((WCHAR*)&V_UNION(&var, bstrVal))+1) * sizeof(WCHAR);
            if (!(regfilters[idx].Name = CoTaskMemAlloc(len*2)))
                hr = E_OUTOFMEMORY;
        }

        if (SUCCEEDED(hrSub))
        {
            memcpy(regfilters[idx].Name, &V_UNION(&var, bstrVal), len);
            regfilters[idx].Clsid = clsid;
            idx++;
        }

        if (pPropBagCat)
            IPropertyBag_Release(pPropBagCat);
        IMoniker_Release(IMon);
    }

    /* In case of release all resources */
    if (!SUCCEEDED(hr))
    {
        for (idx = 0; idx < nb_mon; idx++)
            CoTaskMemFree(regfilters[idx].Name);
        CoTaskMemFree(regfilters);
        IEnumMoniker_Release(ppEnumMoniker);
        return hr;
    }

1303
    hr = IEnumRegFiltersImpl_Construct(regfilters, nb_mon, ppEnum);
1304 1305 1306 1307
    CoTaskMemFree(regfilters);
    IEnumMoniker_Release(ppEnumMoniker);
    
    return hr;
1308 1309 1310 1311 1312
}


static HRESULT WINAPI FilterMapper_RegisterFilter(IFilterMapper * iface, CLSID clsid, LPCWSTR szName, DWORD dwMerit)
{
1313 1314 1315
    HRESULT hr;
    LPWSTR wszClsid = NULL;
    HKEY hKey;
1316
    LONG lRet;
1317 1318
    WCHAR wszKeyName[strlenW(wszFilterSlash) + (CHARS_IN_GUID-1) + 1];

1319
    TRACE("(%p)->(%s, %s, %x)\n", iface, debugstr_guid(&clsid), debugstr_w(szName), dwMerit);
1320 1321 1322 1323 1324 1325 1326 1327

    hr = StringFromCLSID(&clsid, &wszClsid);

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszFilterSlash);
        strcatW(wszKeyName, wszClsid);
    
1328 1329
        lRet = RegCreateKeyExW(HKEY_CLASSES_ROOT, wszKeyName, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL);
        hr = HRESULT_FROM_WIN32(lRet);
1330 1331 1332 1333
    }

    if (SUCCEEDED(hr))
    {
1334 1335
        lRet = RegSetValueExW(hKey, NULL, 0, REG_SZ, (const BYTE*)szName, strlenW(szName) + 1);
        hr = HRESULT_FROM_WIN32(lRet);
1336 1337 1338 1339 1340 1341 1342 1343
        CloseHandle(hKey);
    }

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszClsidSlash);
        strcatW(wszKeyName, wszClsid);
    
1344 1345
        lRet = RegCreateKeyExW(HKEY_CLASSES_ROOT, wszKeyName, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL);
        hr = HRESULT_FROM_WIN32(lRet);
1346 1347 1348 1349
    }

    if (SUCCEEDED(hr))
    {
1350 1351
        lRet = RegSetValueExW(hKey, wszMeritName, 0, REG_DWORD, (LPBYTE)&dwMerit, sizeof(dwMerit));
        hr = HRESULT_FROM_WIN32(lRet);
1352 1353 1354 1355
        CloseHandle(hKey);
    }
    
    return hr;
1356 1357 1358 1359
}

static HRESULT WINAPI FilterMapper_RegisterFilterInstance(IFilterMapper * iface, CLSID clsid, LPCWSTR szName, CLSID *MRId)
{
1360 1361 1362 1363
    TRACE("(%p)->(%s, %s, %p)\n", iface, debugstr_guid(&clsid), debugstr_w(szName), MRId);

    /* Not implemented in Windows (tested on Win2k) */

1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377
    return E_NOTIMPL;
}

static HRESULT WINAPI FilterMapper_RegisterPin(
    IFilterMapper * iface,
    CLSID Filter,
    LPCWSTR szName,
    BOOL bRendered,
    BOOL bOutput,
    BOOL bZero,
    BOOL bMany,
    CLSID ConnectsToFilter,
    LPCWSTR ConnectsToPin)
{
1378
    HRESULT hr;
1379
    LONG lRet;
1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395
    LPWSTR wszClsid = NULL;
    HKEY hKey = NULL;
    HKEY hPinsKey = NULL;
    WCHAR * wszPinsKeyName;
    WCHAR wszKeyName[strlenW(wszClsidSlash) + (CHARS_IN_GUID-1) + 1];

    TRACE("(%p)->(%s, %s, %d, %d, %d, %d, %s, %s)\n", iface, debugstr_guid(&Filter), debugstr_w(szName), bRendered,
                bOutput, bZero, bMany, debugstr_guid(&ConnectsToFilter), debugstr_w(ConnectsToPin));

    hr = StringFromCLSID(&Filter, &wszClsid);

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszClsidSlash);
        strcatW(wszKeyName, wszClsid);

1396 1397
        lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszKeyName, 0, KEY_WRITE, &hKey);
        hr = HRESULT_FROM_WIN32(lRet);
1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412
    }

    if (SUCCEEDED(hr))
    {
        wszPinsKeyName = CoTaskMemAlloc((strlenW(wszPins) + 1 + strlenW(szName) + 1) * 2);
        if (!wszPinsKeyName)
             hr = E_OUTOFMEMORY;
    }

    if (SUCCEEDED(hr))
    {
        strcpyW(wszPinsKeyName, wszPins);
        strcatW(wszPinsKeyName, wszSlash);
        strcatW(wszPinsKeyName, szName);
    
1413 1414
        lRet = RegCreateKeyExW(hKey, wszPinsKeyName, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hPinsKey, NULL);
        hr = HRESULT_FROM_WIN32(lRet);
1415 1416 1417 1418 1419
        CoTaskMemFree(wszPinsKeyName);
    }

    if (SUCCEEDED(hr))
    {
1420 1421
        lRet = RegSetValueExW(hPinsKey, wszAllowedMany, 0, REG_DWORD, (LPBYTE)&bMany, sizeof(bMany));
        hr = HRESULT_FROM_WIN32(lRet);
1422 1423 1424 1425
    }

    if (SUCCEEDED(hr))
    {
1426 1427
        lRet = RegSetValueExW(hPinsKey, wszAllowedZero, 0, REG_DWORD, (LPBYTE)&bZero, sizeof(bZero));
        hr = HRESULT_FROM_WIN32(lRet);
1428 1429 1430 1431
    }

    if (SUCCEEDED(hr))
    {
1432 1433
        lRet = RegSetValueExW(hPinsKey, wszDirection, 0, REG_DWORD, (LPBYTE)&bOutput, sizeof(bOutput));
        hr = HRESULT_FROM_WIN32(lRet);
1434 1435 1436 1437
    }

    if (SUCCEEDED(hr))
    {
1438 1439
        lRet = RegSetValueExW(hPinsKey, wszIsRendered, 0, REG_DWORD, (LPBYTE)&bRendered, sizeof(bRendered));
        hr = HRESULT_FROM_WIN32(lRet);
1440 1441 1442 1443
    }

    if (SUCCEEDED(hr))
    {
1444 1445
        lRet = RegCreateKeyExW(hPinsKey, wszTypes, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, NULL, NULL);
        hr = HRESULT_FROM_WIN32(lRet);
1446 1447
    }

1448
    CoTaskMemFree(wszClsid);
1449 1450 1451 1452 1453 1454
    if (hKey)
        CloseHandle(hKey);
    if (hPinsKey)
        CloseHandle(hPinsKey);

    return hr;
1455 1456 1457 1458 1459 1460 1461 1462 1463 1464
}


static HRESULT WINAPI FilterMapper_RegisterPinType(
    IFilterMapper * iface,
    CLSID clsFilter,
    LPCWSTR szName,
    CLSID clsMajorType,
    CLSID clsSubType)
{
1465
    HRESULT hr;
1466
    LONG lRet;
1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507
    LPWSTR wszClsid = NULL;
    LPWSTR wszClsidMajorType = NULL;
    LPWSTR wszClsidSubType = NULL;
    HKEY hKey = NULL;
    WCHAR * wszTypesKey;
    WCHAR wszKeyName[strlenW(wszClsidSlash) + (CHARS_IN_GUID-1) + 1];

    TRACE("(%p)->(%s, %s, %s, %s)\n", iface, debugstr_guid(&clsFilter), debugstr_w(szName),
                    debugstr_guid(&clsMajorType), debugstr_guid(&clsSubType));

    hr = StringFromCLSID(&clsFilter, &wszClsid);

    if (SUCCEEDED(hr))
    {
        hr = StringFromCLSID(&clsMajorType, &wszClsidMajorType);
    }

    if (SUCCEEDED(hr))
    {
        hr = StringFromCLSID(&clsSubType, &wszClsidSubType);
    }

    if (SUCCEEDED(hr))
    {
        wszTypesKey = CoTaskMemAlloc((strlenW(wszClsidSlash) + strlenW(wszClsid) + strlenW(wszPins) +
                        strlenW(szName) + strlenW(wszTypes) + 3 + 1) * 2);
        if (!wszTypesKey)
            hr = E_OUTOFMEMORY;
    }

    if (SUCCEEDED(hr))
    {
        strcpyW(wszTypesKey, wszClsidSlash);
        strcatW(wszTypesKey, wszClsid);
        strcatW(wszTypesKey, wszSlash);
        strcatW(wszTypesKey, wszPins);
        strcatW(wszTypesKey, wszSlash);
        strcatW(wszTypesKey, szName);
        strcatW(wszTypesKey, wszSlash);
        strcatW(wszTypesKey, wszTypes);

1508 1509
        lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszTypesKey, 0, KEY_WRITE, &hKey);
        hr = HRESULT_FROM_WIN32(lRet);
1510 1511 1512 1513 1514 1515 1516 1517 1518
        CoTaskMemFree(wszTypesKey);
    }

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszClsidMajorType);
        strcatW(wszKeyName, wszSlash);
        strcatW(wszKeyName, wszClsidSubType);

1519 1520
        lRet = RegCreateKeyExW(hKey, wszKeyName, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, NULL, NULL);
        hr = HRESULT_FROM_WIN32(lRet);
1521 1522 1523
        CloseHandle(hKey);
    }

1524 1525 1526
    CoTaskMemFree(wszClsid);
    CoTaskMemFree(wszClsidMajorType);
    CoTaskMemFree(wszClsidSubType);
1527 1528

    return hr;
1529 1530 1531 1532
}

static HRESULT WINAPI FilterMapper_UnregisterFilter(IFilterMapper * iface, CLSID Filter)
{
1533
    HRESULT hr;
1534
    LONG lRet;
1535 1536 1537 1538 1539 1540 1541 1542 1543 1544
    LPWSTR wszClsid = NULL;
    HKEY hKey;
    WCHAR wszKeyName[strlenW(wszClsidSlash) + (CHARS_IN_GUID-1) + 1];

    TRACE("(%p)->(%s)\n", iface, debugstr_guid(&Filter));

    hr = StringFromCLSID(&Filter, &wszClsid);

    if (SUCCEEDED(hr))
    {
1545 1546
        lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszFilter, 0, KEY_WRITE, &hKey);
        hr = HRESULT_FROM_WIN32(lRet);
1547 1548 1549 1550
    }

    if (SUCCEEDED(hr))
    {
1551 1552
        lRet = RegDeleteKeyW(hKey, wszClsid);
        hr = HRESULT_FROM_WIN32(lRet);
1553 1554 1555 1556 1557 1558 1559 1560
        CloseHandle(hKey);
    }

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszClsidSlash);
        strcatW(wszKeyName, wszClsid);

1561 1562
        lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszKeyName, 0, KEY_WRITE, &hKey);
        hr = HRESULT_FROM_WIN32(lRet);
1563 1564 1565 1566
    }

    if (SUCCEEDED(hr))
    {
1567 1568
        lRet = RegDeleteKeyW(hKey, wszMeritName);
        hr = HRESULT_FROM_WIN32(lRet);
1569 1570 1571
        CloseHandle(hKey);
    }

1572
    CoTaskMemFree(wszClsid);
1573 1574

    return hr;
1575 1576 1577 1578
}

static HRESULT WINAPI FilterMapper_UnregisterFilterInstance(IFilterMapper * iface, CLSID MRId)
{
1579 1580 1581 1582
    TRACE("(%p)->(%s)\n", iface, debugstr_guid(&MRId));

    /* Not implemented in Windows (tested on Win2k) */

1583 1584 1585 1586 1587
    return E_NOTIMPL;
}

static HRESULT WINAPI FilterMapper_UnregisterPin(IFilterMapper * iface, CLSID Filter, LPCWSTR Name)
{
1588
    HRESULT hr;
1589
    LONG lRet;
1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606
    LPWSTR wszClsid = NULL;
    HKEY hKey = NULL;
    WCHAR * wszPinNameKey;
    WCHAR wszKeyName[strlenW(wszClsidSlash) + (CHARS_IN_GUID-1) + 1];

    TRACE("(%p)->(%s, %s)\n", iface, debugstr_guid(&Filter), debugstr_w(Name));

    if (!Name)
        return E_INVALIDARG;

    hr = StringFromCLSID(&Filter, &wszClsid);

    if (SUCCEEDED(hr))
    {
        strcpyW(wszKeyName, wszClsidSlash);
        strcatW(wszKeyName, wszClsid);

1607 1608
        lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszKeyName, 0, KEY_WRITE, &hKey);
        hr = HRESULT_FROM_WIN32(lRet);
1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623
    }

    if (SUCCEEDED(hr))
    {
        wszPinNameKey = CoTaskMemAlloc((strlenW(wszPins) + 1 + strlenW(Name) + 1) * 2);
        if (!wszPinNameKey)
            hr = E_OUTOFMEMORY;
    }

    if (SUCCEEDED(hr))
    {
        strcpyW(wszPinNameKey, wszPins);
        strcatW(wszPinNameKey, wszSlash);
        strcatW(wszPinNameKey, Name);

1624 1625
        lRet = RegDeleteKeyW(hKey, wszPinNameKey);
        hr = HRESULT_FROM_WIN32(lRet);
1626 1627 1628
        CoTaskMemFree(wszPinNameKey);
    }

1629
    CoTaskMemFree(wszClsid);
1630 1631 1632 1633
    if (hKey)
        CloseHandle(hKey);

    return hr;
1634 1635
}

1636
static const IFilterMapperVtbl fmvtbl =
1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651
{

    FilterMapper_QueryInterface,
    FilterMapper_AddRef,
    FilterMapper_Release,

    FilterMapper_RegisterFilter,
    FilterMapper_RegisterFilterInstance,
    FilterMapper_RegisterPin,
    FilterMapper_RegisterPinType,
    FilterMapper_UnregisterFilter,
    FilterMapper_UnregisterFilterInstance,
    FilterMapper_UnregisterPin,
    FilterMapper_EnumMatchingFilters
};
1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720


/*** IUnknown methods ***/
static HRESULT WINAPI AMFilterData_QueryInterface(IAMFilterData * iface, REFIID riid, LPVOID *ppv)
{
    FilterMapper2Impl *This = impl_from_IAMFilterData(iface);

    return FilterMapper2_QueryInterface((IFilterMapper2*)This, riid, ppv);
}

static ULONG WINAPI AMFilterData_AddRef(IAMFilterData * iface)
{
    FilterMapper2Impl *This = impl_from_IAMFilterData(iface);

    return FilterMapper2_AddRef((IFilterMapper2*)This);
}

static ULONG WINAPI AMFilterData_Release(IAMFilterData * iface)
{
    FilterMapper2Impl *This = impl_from_IAMFilterData(iface);

    return FilterMapper2_Release((IFilterMapper2*)This);
}

/*** IAMFilterData methods ***/
static HRESULT WINAPI AMFilterData_ParseFilterData(IAMFilterData* iface,
                                                   BYTE *pData, ULONG cb,
                                                   BYTE **ppRegFilter2)
{
    FilterMapper2Impl *This = impl_from_IAMFilterData(iface);
    HRESULT hr = S_OK;
    REGFILTER2 *prf2;

    TRACE("(%p/%p)->(%p, %d, %p)\n", This, iface, pData, cb, ppRegFilter2);

    prf2 = CoTaskMemAlloc(sizeof(*prf2));
    if (!prf2)
        return E_OUTOFMEMORY;
    *ppRegFilter2 = (BYTE *)&prf2;

    hr = FM2_ReadFilterData(pData, prf2);
    if (FAILED(hr))
    {
        CoTaskMemFree(prf2);
        *ppRegFilter2 = NULL;
    }

    return hr;
}

static HRESULT WINAPI AMFilterData_CreateFilterData(IAMFilterData* iface,
                                                    REGFILTER2 *prf2,
                                                    BYTE **pRegFilterData,
                                                    ULONG *pcb)
{
    FilterMapper2Impl *This = impl_from_IAMFilterData(iface);

    TRACE("(%p/%p)->(%p, %p, %p)\n", This, iface, prf2, pRegFilterData, pcb);

    return FM2_WriteFilterData(prf2, pRegFilterData, pcb);
}

static const IAMFilterDataVtbl AMFilterDataVtbl = {
    AMFilterData_QueryInterface,
    AMFilterData_AddRef,
    AMFilterData_Release,
    AMFilterData_ParseFilterData,
    AMFilterData_CreateFilterData
};