1288 lines
37 KiB
C
1288 lines
37 KiB
C
/*
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* File Source Filter
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*
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* Copyright 2003 Robert Shearman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* 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
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#define NONAMELESSSTRUCT
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#include "quartz_private.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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#include "pin.h"
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#include "uuids.h"
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#include "vfwmsgs.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "shlwapi.h"
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#include <assert.h>
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WINE_DEFAULT_DEBUG_CHANNEL(quartz);
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static const WCHAR wszOutputPinName[] = { 'O','u','t','p','u','t',0 };
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typedef struct AsyncReader
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{
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const IBaseFilterVtbl * lpVtbl;
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const IFileSourceFilterVtbl * lpVtblFSF;
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LONG refCount;
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FILTER_INFO filterInfo;
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FILTER_STATE state;
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CRITICAL_SECTION csFilter;
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IPin * pOutputPin;
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LPOLESTR pszFileName;
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AM_MEDIA_TYPE * pmt;
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} AsyncReader;
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static const IBaseFilterVtbl AsyncReader_Vtbl;
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static const IFileSourceFilterVtbl FileSource_Vtbl;
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static const IAsyncReaderVtbl FileAsyncReader_Vtbl;
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static HRESULT FileAsyncReader_Construct(HANDLE hFile, IBaseFilter * pBaseFilter, LPCRITICAL_SECTION pCritSec, IPin ** ppPin);
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static inline AsyncReader *impl_from_IFileSourceFilter( IFileSourceFilter *iface )
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{
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return (AsyncReader *)((char*)iface - FIELD_OFFSET(AsyncReader, lpVtblFSF));
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}
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static WCHAR const mediatype_name[11] = {
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'M', 'e', 'd', 'i', 'a', ' ', 'T', 'y', 'p', 'e', 0 };
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static WCHAR const subtype_name[8] = {
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'S', 'u', 'b', 't', 'y', 'p', 'e', 0 };
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static HRESULT process_extensions(HKEY hkeyExtensions, LPCOLESTR pszFileName, GUID * majorType, GUID * minorType)
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{
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WCHAR *extension;
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LONG l;
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HKEY hsub;
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WCHAR keying[39];
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DWORD size;
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if (!pszFileName)
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return E_POINTER;
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/* Get the part of the name that matters */
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extension = PathFindExtensionW(pszFileName);
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if (*extension != '.')
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return E_FAIL;
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l = RegOpenKeyExW(hkeyExtensions, extension, 0, KEY_READ, &hsub);
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if (l)
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return E_FAIL;
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size = sizeof(keying);
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l = RegQueryValueExW(hsub, mediatype_name, NULL, NULL, (LPBYTE)keying, &size);
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if (!l)
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CLSIDFromString(keying, majorType);
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size = sizeof(keying);
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if (!l)
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l = RegQueryValueExW(hsub, subtype_name, NULL, NULL, (LPBYTE)keying, &size);
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if (!l)
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CLSIDFromString(keying, minorType);
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RegCloseKey(hsub);
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if (!l)
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return S_OK;
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return E_FAIL;
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}
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static unsigned char byte_from_hex_char(WCHAR wHex)
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{
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switch (tolowerW(wHex))
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{
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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return (wHex - '0') & 0xf;
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case 'a':
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case 'b':
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case 'c':
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case 'd':
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case 'e':
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case 'f':
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return (wHex - 'a' + 10) & 0xf;
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default:
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return 0;
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}
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}
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static HRESULT process_pattern_string(LPCWSTR wszPatternString, IAsyncReader * pReader)
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{
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ULONG ulOffset;
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ULONG ulBytes;
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BYTE * pbMask;
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BYTE * pbValue;
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BYTE * pbFile;
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HRESULT hr = S_OK;
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ULONG strpos;
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TRACE("\t\tPattern string: %s\n", debugstr_w(wszPatternString));
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/* format: "offset, bytestocompare, mask, value" */
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ulOffset = strtolW(wszPatternString, NULL, 10);
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if (!(wszPatternString = strchrW(wszPatternString, ',')))
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return E_INVALIDARG;
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wszPatternString++; /* skip ',' */
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ulBytes = strtolW(wszPatternString, NULL, 10);
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pbMask = HeapAlloc(GetProcessHeap(), 0, ulBytes);
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pbValue = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, ulBytes);
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pbFile = HeapAlloc(GetProcessHeap(), 0, ulBytes);
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/* default mask is match everything */
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memset(pbMask, 0xFF, ulBytes);
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if (!(wszPatternString = strchrW(wszPatternString, ',')))
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hr = E_INVALIDARG;
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wszPatternString++; /* skip ',' */
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if (hr == S_OK)
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{
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for ( ; !isxdigitW(*wszPatternString) && (*wszPatternString != ','); wszPatternString++)
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;
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for (strpos = 0; isxdigitW(*wszPatternString) && (strpos/2 < ulBytes); wszPatternString++, strpos++)
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{
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if ((strpos % 2) == 1) /* odd numbered position */
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pbMask[strpos / 2] |= byte_from_hex_char(*wszPatternString);
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else
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pbMask[strpos / 2] = byte_from_hex_char(*wszPatternString) << 4;
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}
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if (!(wszPatternString = strchrW(wszPatternString, ',')))
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hr = E_INVALIDARG;
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wszPatternString++; /* skip ',' */
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}
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if (hr == S_OK)
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{
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for ( ; !isxdigitW(*wszPatternString) && (*wszPatternString != ','); wszPatternString++)
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;
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for (strpos = 0; isxdigitW(*wszPatternString) && (strpos/2 < ulBytes); wszPatternString++, strpos++)
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{
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if ((strpos % 2) == 1) /* odd numbered position */
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pbValue[strpos / 2] |= byte_from_hex_char(*wszPatternString);
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else
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pbValue[strpos / 2] = byte_from_hex_char(*wszPatternString) << 4;
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}
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}
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if (hr == S_OK)
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hr = IAsyncReader_SyncRead(pReader, ulOffset, ulBytes, pbFile);
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if (hr == S_OK)
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{
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ULONG i;
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for (i = 0; i < ulBytes; i++)
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if ((pbFile[i] & pbMask[i]) != pbValue[i])
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{
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hr = S_FALSE;
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break;
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}
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}
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HeapFree(GetProcessHeap(), 0, pbMask);
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HeapFree(GetProcessHeap(), 0, pbValue);
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HeapFree(GetProcessHeap(), 0, pbFile);
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/* if we encountered no errors with this string, and there is a following tuple, then we
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* have to match that as well to succeed */
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if ((hr == S_OK) && (wszPatternString = strchrW(wszPatternString, ',')))
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return process_pattern_string(wszPatternString + 1, pReader);
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else
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return hr;
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}
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static HRESULT GetClassMediaFile(IAsyncReader * pReader, LPCOLESTR pszFileName, GUID * majorType, GUID * minorType)
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{
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HKEY hkeyMediaType = NULL;
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LONG lRet;
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HRESULT hr = S_OK;
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BOOL bFound = FALSE;
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static const WCHAR wszMediaType[] = {'M','e','d','i','a',' ','T','y','p','e',0};
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TRACE("(%p, %s, %p, %p)\n", pReader, debugstr_w(pszFileName), majorType, minorType);
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*majorType = GUID_NULL;
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*minorType = GUID_NULL;
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lRet = RegOpenKeyExW(HKEY_CLASSES_ROOT, wszMediaType, 0, KEY_READ, &hkeyMediaType);
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hr = HRESULT_FROM_WIN32(lRet);
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if (SUCCEEDED(hr))
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{
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DWORD indexMajor;
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for (indexMajor = 0; !bFound; indexMajor++)
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{
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HKEY hkeyMajor;
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WCHAR wszMajorKeyName[CHARS_IN_GUID];
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DWORD dwKeyNameLength = sizeof(wszMajorKeyName) / sizeof(wszMajorKeyName[0]);
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static const WCHAR wszExtensions[] = {'E','x','t','e','n','s','i','o','n','s',0};
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if (RegEnumKeyExW(hkeyMediaType, indexMajor, wszMajorKeyName, &dwKeyNameLength, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
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break;
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if (RegOpenKeyExW(hkeyMediaType, wszMajorKeyName, 0, KEY_READ, &hkeyMajor) != ERROR_SUCCESS)
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break;
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TRACE("%s\n", debugstr_w(wszMajorKeyName));
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if (!strcmpW(wszExtensions, wszMajorKeyName))
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{
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if (process_extensions(hkeyMajor, pszFileName, majorType, minorType) == S_OK)
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bFound = TRUE;
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}
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else
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{
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DWORD indexMinor;
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for (indexMinor = 0; !bFound; indexMinor++)
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{
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HKEY hkeyMinor;
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WCHAR wszMinorKeyName[CHARS_IN_GUID];
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DWORD dwMinorKeyNameLen = sizeof(wszMinorKeyName) / sizeof(wszMinorKeyName[0]);
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DWORD maxValueLen;
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DWORD indexValue;
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if (RegEnumKeyExW(hkeyMajor, indexMinor, wszMinorKeyName, &dwMinorKeyNameLen, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
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break;
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if (RegOpenKeyExW(hkeyMajor, wszMinorKeyName, 0, KEY_READ, &hkeyMinor) != ERROR_SUCCESS)
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break;
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TRACE("\t%s\n", debugstr_w(wszMinorKeyName));
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if (RegQueryInfoKeyW(hkeyMinor, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, &maxValueLen, NULL, NULL) != ERROR_SUCCESS)
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break;
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for (indexValue = 0; !bFound; indexValue++)
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{
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DWORD dwType;
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WCHAR wszValueName[14]; /* longest name we should encounter will be "Source Filter" */
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LPWSTR wszPatternString = HeapAlloc(GetProcessHeap(), 0, maxValueLen);
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DWORD dwValueNameLen = sizeof(wszValueName) / sizeof(wszValueName[0]); /* remember this is in chars */
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DWORD dwDataLen = maxValueLen; /* remember this is in bytes */
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static const WCHAR wszSourceFilter[] = {'S','o','u','r','c','e',' ','F','i','l','t','e','r',0};
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LONG temp;
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if ((temp = RegEnumValueW(hkeyMinor, indexValue, wszValueName, &dwValueNameLen, NULL, &dwType, (LPBYTE)wszPatternString, &dwDataLen)) != ERROR_SUCCESS)
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{
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HeapFree(GetProcessHeap(), 0, wszPatternString);
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break;
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}
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/* if it is not the source filter value */
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if (strcmpW(wszValueName, wszSourceFilter))
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{
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if (process_pattern_string(wszPatternString, pReader) == S_OK)
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{
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if (SUCCEEDED(CLSIDFromString(wszMajorKeyName, majorType)) &&
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SUCCEEDED(CLSIDFromString(wszMinorKeyName, minorType)))
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bFound = TRUE;
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}
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}
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HeapFree(GetProcessHeap(), 0, wszPatternString);
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}
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CloseHandle(hkeyMinor);
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}
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}
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CloseHandle(hkeyMajor);
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}
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}
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CloseHandle(hkeyMediaType);
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if (SUCCEEDED(hr) && !bFound)
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{
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ERR("Media class not found\n");
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hr = E_FAIL;
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}
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else if (bFound)
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TRACE("Found file's class: major = %s, subtype = %s\n", qzdebugstr_guid(majorType), qzdebugstr_guid(minorType));
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return hr;
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}
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HRESULT AsyncReader_create(IUnknown * pUnkOuter, LPVOID * ppv)
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{
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AsyncReader *pAsyncRead;
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if( pUnkOuter )
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return CLASS_E_NOAGGREGATION;
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pAsyncRead = CoTaskMemAlloc(sizeof(AsyncReader));
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if (!pAsyncRead)
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return E_OUTOFMEMORY;
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pAsyncRead->lpVtbl = &AsyncReader_Vtbl;
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pAsyncRead->lpVtblFSF = &FileSource_Vtbl;
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pAsyncRead->refCount = 1;
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pAsyncRead->filterInfo.achName[0] = '\0';
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pAsyncRead->filterInfo.pGraph = NULL;
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pAsyncRead->pOutputPin = NULL;
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InitializeCriticalSection(&pAsyncRead->csFilter);
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pAsyncRead->csFilter.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": AsyncReader.csFilter");
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pAsyncRead->pszFileName = NULL;
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pAsyncRead->pmt = NULL;
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*ppv = (LPVOID)pAsyncRead;
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TRACE("-- created at %p\n", pAsyncRead);
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return S_OK;
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}
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/** IUnknown methods **/
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static HRESULT WINAPI AsyncReader_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
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{
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AsyncReader *This = (AsyncReader *)iface;
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TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv);
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*ppv = NULL;
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if (IsEqualIID(riid, &IID_IUnknown))
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*ppv = (LPVOID)This;
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else if (IsEqualIID(riid, &IID_IPersist))
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*ppv = (LPVOID)This;
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else if (IsEqualIID(riid, &IID_IMediaFilter))
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*ppv = (LPVOID)This;
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else if (IsEqualIID(riid, &IID_IBaseFilter))
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*ppv = (LPVOID)This;
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else if (IsEqualIID(riid, &IID_IFileSourceFilter))
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*ppv = (LPVOID)(&This->lpVtblFSF);
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if (*ppv)
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{
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IUnknown_AddRef((IUnknown *)(*ppv));
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return S_OK;
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}
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if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IMediaSeeking) && !IsEqualIID(riid, &IID_IVideoWindow))
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FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
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return E_NOINTERFACE;
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}
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static ULONG WINAPI AsyncReader_AddRef(IBaseFilter * iface)
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{
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AsyncReader *This = (AsyncReader *)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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}
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static ULONG WINAPI AsyncReader_Release(IBaseFilter * iface)
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{
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AsyncReader *This = (AsyncReader *)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)
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{
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if (This->pOutputPin)
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{
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IPin *pConnectedTo;
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if(SUCCEEDED(IPin_ConnectedTo(This->pOutputPin, &pConnectedTo)))
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{
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IPin_Disconnect(pConnectedTo);
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IPin_Release(pConnectedTo);
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}
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IPin_Disconnect(This->pOutputPin);
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IPin_Release(This->pOutputPin);
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}
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This->csFilter.DebugInfo->Spare[0] = 0;
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DeleteCriticalSection(&This->csFilter);
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This->lpVtbl = NULL;
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CoTaskMemFree(This->pszFileName);
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if (This->pmt)
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FreeMediaType(This->pmt);
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CoTaskMemFree(This);
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return 0;
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}
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else
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return refCount;
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}
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/** IPersist methods **/
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static HRESULT WINAPI AsyncReader_GetClassID(IBaseFilter * iface, CLSID * pClsid)
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{
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TRACE("(%p)\n", pClsid);
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*pClsid = CLSID_AsyncReader;
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return S_OK;
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}
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/** IMediaFilter methods **/
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static HRESULT WINAPI AsyncReader_Stop(IBaseFilter * iface)
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{
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AsyncReader *This = (AsyncReader *)iface;
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TRACE("()\n");
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This->state = State_Stopped;
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return S_OK;
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}
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static HRESULT WINAPI AsyncReader_Pause(IBaseFilter * iface)
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{
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AsyncReader *This = (AsyncReader *)iface;
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TRACE("()\n");
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This->state = State_Paused;
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return S_OK;
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}
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static HRESULT WINAPI AsyncReader_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
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{
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AsyncReader *This = (AsyncReader *)iface;
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TRACE("(%x%08x)\n", (ULONG)(tStart >> 32), (ULONG)tStart);
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This->state = State_Running;
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return S_OK;
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}
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static HRESULT WINAPI AsyncReader_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
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{
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AsyncReader *This = (AsyncReader *)iface;
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TRACE("(%u, %p)\n", dwMilliSecsTimeout, pState);
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*pState = This->state;
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return S_OK;
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}
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static HRESULT WINAPI AsyncReader_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock)
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{
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/* AsyncReader *This = (AsyncReader *)iface;*/
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TRACE("(%p)\n", pClock);
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return S_OK;
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}
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static HRESULT WINAPI AsyncReader_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock)
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{
|
|
/* AsyncReader *This = (AsyncReader *)iface;*/
|
|
|
|
TRACE("(%p)\n", ppClock);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/** IBaseFilter methods **/
|
|
|
|
static HRESULT WINAPI AsyncReader_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
|
|
{
|
|
ENUMPINDETAILS epd;
|
|
AsyncReader *This = (AsyncReader *)iface;
|
|
|
|
TRACE("(%p)\n", ppEnum);
|
|
|
|
epd.cPins = This->pOutputPin ? 1 : 0;
|
|
epd.ppPins = &This->pOutputPin;
|
|
return IEnumPinsImpl_Construct(&epd, ppEnum);
|
|
}
|
|
|
|
static HRESULT WINAPI AsyncReader_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
|
|
{
|
|
FIXME("(%s, %p)\n", debugstr_w(Id), ppPin);
|
|
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static HRESULT WINAPI AsyncReader_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo)
|
|
{
|
|
AsyncReader *This = (AsyncReader *)iface;
|
|
|
|
TRACE("(%p)\n", pInfo);
|
|
|
|
strcpyW(pInfo->achName, This->filterInfo.achName);
|
|
pInfo->pGraph = This->filterInfo.pGraph;
|
|
|
|
if (pInfo->pGraph)
|
|
IFilterGraph_AddRef(pInfo->pGraph);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI AsyncReader_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName)
|
|
{
|
|
AsyncReader *This = (AsyncReader *)iface;
|
|
|
|
TRACE("(%p, %s)\n", pGraph, debugstr_w(pName));
|
|
|
|
if (pName)
|
|
strcpyW(This->filterInfo.achName, pName);
|
|
else
|
|
*This->filterInfo.achName = 0;
|
|
This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI AsyncReader_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo)
|
|
{
|
|
FIXME("(%p)\n", pVendorInfo);
|
|
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const IBaseFilterVtbl AsyncReader_Vtbl =
|
|
{
|
|
AsyncReader_QueryInterface,
|
|
AsyncReader_AddRef,
|
|
AsyncReader_Release,
|
|
AsyncReader_GetClassID,
|
|
AsyncReader_Stop,
|
|
AsyncReader_Pause,
|
|
AsyncReader_Run,
|
|
AsyncReader_GetState,
|
|
AsyncReader_SetSyncSource,
|
|
AsyncReader_GetSyncSource,
|
|
AsyncReader_EnumPins,
|
|
AsyncReader_FindPin,
|
|
AsyncReader_QueryFilterInfo,
|
|
AsyncReader_JoinFilterGraph,
|
|
AsyncReader_QueryVendorInfo
|
|
};
|
|
|
|
static HRESULT WINAPI FileSource_QueryInterface(IFileSourceFilter * iface, REFIID riid, LPVOID * ppv)
|
|
{
|
|
AsyncReader *This = impl_from_IFileSourceFilter(iface);
|
|
|
|
return IBaseFilter_QueryInterface((IFileSourceFilter*)&This->lpVtbl, riid, ppv);
|
|
}
|
|
|
|
static ULONG WINAPI FileSource_AddRef(IFileSourceFilter * iface)
|
|
{
|
|
AsyncReader *This = impl_from_IFileSourceFilter(iface);
|
|
|
|
return IBaseFilter_AddRef((IFileSourceFilter*)&This->lpVtbl);
|
|
}
|
|
|
|
static ULONG WINAPI FileSource_Release(IFileSourceFilter * iface)
|
|
{
|
|
AsyncReader *This = impl_from_IFileSourceFilter(iface);
|
|
|
|
return IBaseFilter_Release((IFileSourceFilter*)&This->lpVtbl);
|
|
}
|
|
|
|
static HRESULT WINAPI FileSource_Load(IFileSourceFilter * iface, LPCOLESTR pszFileName, const AM_MEDIA_TYPE * pmt)
|
|
{
|
|
HRESULT hr;
|
|
HANDLE hFile;
|
|
IAsyncReader * pReader = NULL;
|
|
AsyncReader *This = impl_from_IFileSourceFilter(iface);
|
|
|
|
TRACE("(%s, %p)\n", debugstr_w(pszFileName), pmt);
|
|
|
|
/* open file */
|
|
/* FIXME: check the sharing values that native uses */
|
|
hFile = CreateFileW(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, NULL);
|
|
|
|
if (hFile == INVALID_HANDLE_VALUE)
|
|
{
|
|
return HRESULT_FROM_WIN32(GetLastError());
|
|
}
|
|
|
|
/* create pin */
|
|
hr = FileAsyncReader_Construct(hFile, (IBaseFilter *)&This->lpVtbl, &This->csFilter, &This->pOutputPin);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = IPin_QueryInterface(This->pOutputPin, &IID_IAsyncReader, (LPVOID *)&pReader);
|
|
|
|
/* store file name & media type */
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
CoTaskMemFree(This->pszFileName);
|
|
if (This->pmt)
|
|
FreeMediaType(This->pmt);
|
|
|
|
This->pszFileName = CoTaskMemAlloc((strlenW(pszFileName) + 1) * sizeof(WCHAR));
|
|
strcpyW(This->pszFileName, pszFileName);
|
|
|
|
This->pmt = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
|
|
if (!pmt)
|
|
{
|
|
This->pmt->bFixedSizeSamples = TRUE;
|
|
This->pmt->bTemporalCompression = FALSE;
|
|
This->pmt->cbFormat = 0;
|
|
This->pmt->pbFormat = NULL;
|
|
This->pmt->pUnk = NULL;
|
|
This->pmt->lSampleSize = 0;
|
|
This->pmt->formattype = FORMAT_None;
|
|
hr = GetClassMediaFile(pReader, pszFileName, &This->pmt->majortype, &This->pmt->subtype);
|
|
if (FAILED(hr))
|
|
{
|
|
CoTaskMemFree(This->pmt);
|
|
This->pmt = NULL;
|
|
}
|
|
}
|
|
else
|
|
CopyMediaType(This->pmt, pmt);
|
|
}
|
|
|
|
if (pReader)
|
|
IAsyncReader_Release(pReader);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
if (This->pOutputPin)
|
|
{
|
|
IPin_Release(This->pOutputPin);
|
|
This->pOutputPin = NULL;
|
|
}
|
|
|
|
CoTaskMemFree(This->pszFileName);
|
|
if (This->pmt)
|
|
FreeMediaType(This->pmt);
|
|
This->pszFileName = NULL;
|
|
This->pmt = NULL;
|
|
|
|
CloseHandle(hFile);
|
|
}
|
|
|
|
/* FIXME: check return codes */
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI FileSource_GetCurFile(IFileSourceFilter * iface, LPOLESTR * ppszFileName, AM_MEDIA_TYPE * pmt)
|
|
{
|
|
AsyncReader *This = impl_from_IFileSourceFilter(iface);
|
|
|
|
TRACE("(%p, %p)\n", ppszFileName, pmt);
|
|
|
|
if (!ppszFileName)
|
|
return E_POINTER;
|
|
|
|
/* copy file name & media type if available, otherwise clear the outputs */
|
|
if (This->pszFileName)
|
|
{
|
|
*ppszFileName = CoTaskMemAlloc((strlenW(This->pszFileName) + 1) * sizeof(WCHAR));
|
|
strcpyW(*ppszFileName, This->pszFileName);
|
|
}
|
|
else
|
|
*ppszFileName = NULL;
|
|
|
|
if (pmt)
|
|
{
|
|
if (This->pmt)
|
|
CopyMediaType(pmt, This->pmt);
|
|
else
|
|
ZeroMemory(pmt, sizeof(*pmt));
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static const IFileSourceFilterVtbl FileSource_Vtbl =
|
|
{
|
|
FileSource_QueryInterface,
|
|
FileSource_AddRef,
|
|
FileSource_Release,
|
|
FileSource_Load,
|
|
FileSource_GetCurFile
|
|
};
|
|
|
|
|
|
/* the dwUserData passed back to user */
|
|
typedef struct DATAREQUEST
|
|
{
|
|
IMediaSample * pSample; /* sample passed to us by user */
|
|
DWORD_PTR dwUserData; /* user data passed to us */
|
|
OVERLAPPED ovl; /* our overlapped structure */
|
|
|
|
struct DATAREQUEST * pNext; /* next data request in list */
|
|
} DATAREQUEST;
|
|
|
|
static void queue(DATAREQUEST * pHead, DATAREQUEST * pItem)
|
|
{
|
|
DATAREQUEST * pCurrent;
|
|
for (pCurrent = pHead; pCurrent->pNext; pCurrent = pCurrent->pNext)
|
|
;
|
|
pCurrent->pNext = pItem;
|
|
}
|
|
|
|
typedef struct FileAsyncReader
|
|
{
|
|
OutputPin pin;
|
|
const struct IAsyncReaderVtbl * lpVtblAR;
|
|
|
|
HANDLE hFile;
|
|
HANDLE hEvent;
|
|
BOOL bFlushing;
|
|
DATAREQUEST * pHead; /* head of data request list */
|
|
CRITICAL_SECTION csList; /* critical section to protect operations on list */
|
|
} FileAsyncReader;
|
|
|
|
static inline FileAsyncReader *impl_from_IAsyncReader( IAsyncReader *iface )
|
|
{
|
|
return (FileAsyncReader *)((char*)iface - FIELD_OFFSET(FileAsyncReader, lpVtblAR));
|
|
}
|
|
|
|
static HRESULT AcceptProcAFR(LPVOID iface, const AM_MEDIA_TYPE *pmt)
|
|
{
|
|
AsyncReader *This = (AsyncReader *)iface;
|
|
|
|
FIXME("(%p, %p)\n", iface, pmt);
|
|
|
|
if (IsEqualGUID(&pmt->majortype, &This->pmt->majortype) &&
|
|
IsEqualGUID(&pmt->subtype, &This->pmt->subtype) &&
|
|
IsEqualGUID(&pmt->formattype, &FORMAT_None))
|
|
return S_OK;
|
|
|
|
return S_FALSE;
|
|
}
|
|
|
|
/* overridden pin functions */
|
|
|
|
static HRESULT WINAPI FileAsyncReaderPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
|
|
{
|
|
FileAsyncReader *This = (FileAsyncReader *)iface;
|
|
TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv);
|
|
|
|
*ppv = NULL;
|
|
|
|
if (IsEqualIID(riid, &IID_IUnknown))
|
|
*ppv = (LPVOID)This;
|
|
else if (IsEqualIID(riid, &IID_IPin))
|
|
*ppv = (LPVOID)This;
|
|
else if (IsEqualIID(riid, &IID_IAsyncReader))
|
|
*ppv = (LPVOID)&This->lpVtblAR;
|
|
|
|
if (*ppv)
|
|
{
|
|
IUnknown_AddRef((IUnknown *)(*ppv));
|
|
return S_OK;
|
|
}
|
|
|
|
if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IMediaSeeking))
|
|
FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
|
|
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
static ULONG WINAPI FileAsyncReaderPin_Release(IPin * iface)
|
|
{
|
|
FileAsyncReader *This = (FileAsyncReader *)iface;
|
|
ULONG refCount = InterlockedDecrement(&This->pin.pin.refCount);
|
|
|
|
TRACE("(%p)->() Release from %d\n", This, refCount + 1);
|
|
|
|
if (!refCount)
|
|
{
|
|
DATAREQUEST * pCurrent;
|
|
DATAREQUEST * pNext;
|
|
for (pCurrent = This->pHead; pCurrent; pCurrent = pNext)
|
|
{
|
|
pNext = pCurrent->pNext;
|
|
CoTaskMemFree(pCurrent);
|
|
}
|
|
CloseHandle(This->hFile);
|
|
CloseHandle(This->hEvent);
|
|
This->csList.DebugInfo->Spare[0] = 0;
|
|
DeleteCriticalSection(&This->csList);
|
|
CoTaskMemFree(This);
|
|
return 0;
|
|
}
|
|
return refCount;
|
|
}
|
|
|
|
static HRESULT WINAPI FileAsyncReaderPin_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
|
|
{
|
|
ENUMMEDIADETAILS emd;
|
|
FileAsyncReader *This = (FileAsyncReader *)iface;
|
|
|
|
TRACE("(%p)\n", ppEnum);
|
|
|
|
emd.cMediaTypes = 1;
|
|
emd.pMediaTypes = ((AsyncReader *)This->pin.pin.pinInfo.pFilter)->pmt;
|
|
|
|
return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
|
|
}
|
|
|
|
static const IPinVtbl FileAsyncReaderPin_Vtbl =
|
|
{
|
|
FileAsyncReaderPin_QueryInterface,
|
|
IPinImpl_AddRef,
|
|
FileAsyncReaderPin_Release,
|
|
OutputPin_Connect,
|
|
OutputPin_ReceiveConnection,
|
|
IPinImpl_Disconnect,
|
|
IPinImpl_ConnectedTo,
|
|
IPinImpl_ConnectionMediaType,
|
|
IPinImpl_QueryPinInfo,
|
|
IPinImpl_QueryDirection,
|
|
IPinImpl_QueryId,
|
|
IPinImpl_QueryAccept,
|
|
FileAsyncReaderPin_EnumMediaTypes,
|
|
IPinImpl_QueryInternalConnections,
|
|
OutputPin_EndOfStream,
|
|
OutputPin_BeginFlush,
|
|
OutputPin_EndFlush,
|
|
OutputPin_NewSegment
|
|
};
|
|
|
|
/* Function called as a helper to IPin_Connect */
|
|
/* specific AM_MEDIA_TYPE - it cannot be NULL */
|
|
/* this differs from standard OutputPin_ConnectSpecific only in that it
|
|
* doesn't need the IMemInputPin interface on the receiving pin */
|
|
static HRESULT FileAsyncReaderPin_ConnectSpecific(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
|
|
{
|
|
OutputPin *This = (OutputPin *)iface;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p, %p)\n", pReceivePin, pmt);
|
|
dump_AM_MEDIA_TYPE(pmt);
|
|
|
|
/* FIXME: call queryacceptproc */
|
|
|
|
This->pin.pConnectedTo = pReceivePin;
|
|
IPin_AddRef(pReceivePin);
|
|
CopyMediaType(&This->pin.mtCurrent, pmt);
|
|
|
|
hr = IPin_ReceiveConnection(pReceivePin, iface, pmt);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
IPin_Release(This->pin.pConnectedTo);
|
|
This->pin.pConnectedTo = NULL;
|
|
FreeMediaType(&This->pin.mtCurrent);
|
|
}
|
|
|
|
TRACE(" -- %x\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT FileAsyncReader_Construct(HANDLE hFile, IBaseFilter * pBaseFilter, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
|
|
{
|
|
PIN_INFO piOutput;
|
|
HRESULT hr;
|
|
|
|
*ppPin = NULL;
|
|
piOutput.dir = PINDIR_OUTPUT;
|
|
piOutput.pFilter = pBaseFilter;
|
|
strcpyW(piOutput.achName, wszOutputPinName);
|
|
hr = OutputPin_Construct(&FileAsyncReaderPin_Vtbl, sizeof(FileAsyncReader), &piOutput, NULL, pBaseFilter, AcceptProcAFR, pCritSec, ppPin);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
FileAsyncReader *pPinImpl = (FileAsyncReader *)*ppPin;
|
|
pPinImpl->lpVtblAR = &FileAsyncReader_Vtbl;
|
|
pPinImpl->hFile = hFile;
|
|
pPinImpl->hEvent = CreateEventW(NULL, 0, 0, NULL);
|
|
pPinImpl->bFlushing = FALSE;
|
|
pPinImpl->pHead = NULL;
|
|
pPinImpl->pin.pConnectSpecific = FileAsyncReaderPin_ConnectSpecific;
|
|
InitializeCriticalSection(&pPinImpl->csList);
|
|
pPinImpl->csList.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": FileAsyncReader.csList");
|
|
}
|
|
return hr;
|
|
}
|
|
|
|
/* IAsyncReader */
|
|
|
|
static HRESULT WINAPI FileAsyncReader_QueryInterface(IAsyncReader * iface, REFIID riid, LPVOID * ppv)
|
|
{
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
return IPin_QueryInterface((IPin *)This, riid, ppv);
|
|
}
|
|
|
|
static ULONG WINAPI FileAsyncReader_AddRef(IAsyncReader * iface)
|
|
{
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
return IPin_AddRef((IPin *)This);
|
|
}
|
|
|
|
static ULONG WINAPI FileAsyncReader_Release(IAsyncReader * iface)
|
|
{
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
return IPin_Release((IPin *)This);
|
|
}
|
|
|
|
#define DEF_ALIGNMENT 1
|
|
|
|
static HRESULT WINAPI FileAsyncReader_RequestAllocator(IAsyncReader * iface, IMemAllocator * pPreferred, ALLOCATOR_PROPERTIES * pProps, IMemAllocator ** ppActual)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
|
|
TRACE("(%p, %p, %p)\n", pPreferred, pProps, ppActual);
|
|
|
|
if (!pProps->cbAlign || (pProps->cbAlign % DEF_ALIGNMENT) != 0)
|
|
pProps->cbAlign = DEF_ALIGNMENT;
|
|
|
|
if (pPreferred)
|
|
{
|
|
ALLOCATOR_PROPERTIES PropsActual;
|
|
hr = IMemAllocator_SetProperties(pPreferred, pProps, &PropsActual);
|
|
/* FIXME: check we are still aligned */
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
IMemAllocator_AddRef(pPreferred);
|
|
*ppActual = pPreferred;
|
|
TRACE("FileAsyncReader_RequestAllocator -- %x\n", hr);
|
|
return S_OK;
|
|
}
|
|
}
|
|
|
|
pPreferred = NULL;
|
|
|
|
hr = CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC, &IID_IMemAllocator, (LPVOID *)&pPreferred);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
ALLOCATOR_PROPERTIES PropsActual;
|
|
hr = IMemAllocator_SetProperties(pPreferred, pProps, &PropsActual);
|
|
/* FIXME: check we are still aligned */
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
*ppActual = pPreferred;
|
|
TRACE("FileAsyncReader_RequestAllocator -- %x\n", hr);
|
|
return S_OK;
|
|
}
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
*ppActual = NULL;
|
|
if (pPreferred)
|
|
IMemAllocator_Release(pPreferred);
|
|
}
|
|
|
|
TRACE("-- %x\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
/* we could improve the Request/WaitForNext mechanism by allowing out of order samples.
|
|
* however, this would be quite complicated to do and may be a bit error prone */
|
|
static HRESULT WINAPI FileAsyncReader_Request(IAsyncReader * iface, IMediaSample * pSample, DWORD_PTR dwUser)
|
|
{
|
|
REFERENCE_TIME Start;
|
|
REFERENCE_TIME Stop;
|
|
DATAREQUEST * pDataRq;
|
|
BYTE * pBuffer;
|
|
HRESULT hr = S_OK;
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
TRACE("(%p, %lx)\n", pSample, dwUser);
|
|
|
|
/* check flushing state */
|
|
if (This->bFlushing)
|
|
return VFW_E_WRONG_STATE;
|
|
|
|
if (!(pDataRq = CoTaskMemAlloc(sizeof(*pDataRq))))
|
|
hr = E_OUTOFMEMORY;
|
|
|
|
/* get start and stop positions in bytes */
|
|
if (SUCCEEDED(hr))
|
|
hr = IMediaSample_GetTime(pSample, &Start, &Stop);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = IMediaSample_GetPointer(pSample, &pBuffer);
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
DWORD dwLength = (DWORD) BYTES_FROM_MEDIATIME(Stop - Start);
|
|
|
|
pDataRq->ovl.u.s.Offset = (DWORD) BYTES_FROM_MEDIATIME(Start);
|
|
pDataRq->ovl.u.s.OffsetHigh = (DWORD)(BYTES_FROM_MEDIATIME(Start) >> (sizeof(DWORD) * 8));
|
|
pDataRq->ovl.hEvent = This->hEvent;
|
|
pDataRq->dwUserData = dwUser;
|
|
pDataRq->pNext = NULL;
|
|
/* we violate traditional COM rules here by maintaining
|
|
* a reference to the sample, but not calling AddRef, but
|
|
* that's what MSDN says to do */
|
|
pDataRq->pSample = pSample;
|
|
|
|
EnterCriticalSection(&This->csList);
|
|
{
|
|
if (This->pHead)
|
|
/* adds data request to end of list */
|
|
queue(This->pHead, pDataRq);
|
|
else
|
|
This->pHead = pDataRq;
|
|
}
|
|
LeaveCriticalSection(&This->csList);
|
|
|
|
/* this is definitely not how it is implemented on Win9x
|
|
* as they do not support async reads on files, but it is
|
|
* sooo much easier to use this than messing around with threads!
|
|
*/
|
|
if (!ReadFile(This->hFile, pBuffer, dwLength, NULL, &pDataRq->ovl))
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
|
|
/* ERROR_IO_PENDING is not actually an error since this is what we want! */
|
|
if (hr == HRESULT_FROM_WIN32(ERROR_IO_PENDING))
|
|
hr = S_OK;
|
|
}
|
|
|
|
if (FAILED(hr) && pDataRq)
|
|
{
|
|
EnterCriticalSection(&This->csList);
|
|
{
|
|
DATAREQUEST * pCurrent;
|
|
for (pCurrent = This->pHead; pCurrent && pCurrent->pNext; pCurrent = pCurrent->pNext)
|
|
if (pCurrent->pNext == pDataRq)
|
|
{
|
|
pCurrent->pNext = pDataRq->pNext;
|
|
break;
|
|
}
|
|
}
|
|
LeaveCriticalSection(&This->csList);
|
|
CoTaskMemFree(pDataRq);
|
|
}
|
|
|
|
TRACE("-- %x\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI FileAsyncReader_WaitForNext(IAsyncReader * iface, DWORD dwTimeout, IMediaSample ** ppSample, DWORD_PTR * pdwUser)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
DWORD dwBytes = 0;
|
|
DATAREQUEST * pDataRq = NULL;
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
TRACE("(%u, %p, %p)\n", dwTimeout, ppSample, pdwUser);
|
|
|
|
/* FIXME: we could do with improving this by waiting for an array of event handles
|
|
* and then determining which one finished and removing that from the list, otherwise
|
|
* we will end up waiting for longer than we should do, if a later request finishes
|
|
* before an earlier one */
|
|
|
|
*ppSample = NULL;
|
|
*pdwUser = 0;
|
|
|
|
if (!This->bFlushing)
|
|
{
|
|
/* wait for the read to finish or timeout */
|
|
if (WaitForSingleObject(This->hEvent, dwTimeout) == WAIT_TIMEOUT)
|
|
hr = VFW_E_TIMEOUT;
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
EnterCriticalSection(&This->csList);
|
|
{
|
|
pDataRq = This->pHead;
|
|
if (pDataRq == NULL)
|
|
hr = E_FAIL;
|
|
else
|
|
This->pHead = pDataRq->pNext;
|
|
}
|
|
LeaveCriticalSection(&This->csList);
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
REFERENCE_TIME rtStart, rtStop;
|
|
REFERENCE_TIME rtSampleStart, rtSampleStop;
|
|
|
|
/* get any errors */
|
|
if (!This->bFlushing && !GetOverlappedResult(This->hFile, &pDataRq->ovl, &dwBytes, FALSE))
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
|
|
/* Return the sample no matter what so it can be destroyed */
|
|
*ppSample = pDataRq->pSample;
|
|
*pdwUser = pDataRq->dwUserData;
|
|
|
|
if (This->bFlushing)
|
|
{
|
|
hr = VFW_E_WRONG_STATE;
|
|
dwBytes = 0;
|
|
}
|
|
|
|
/* Set the time on the sample */
|
|
IMediaSample_SetActualDataLength(pDataRq->pSample, dwBytes);
|
|
|
|
rtStart = (DWORD64)pDataRq->ovl.u.s.Offset + ((DWORD64)pDataRq->ovl.u.s.OffsetHigh << 32);
|
|
rtStart = MEDIATIME_FROM_BYTES(rtStart);
|
|
rtStop = rtStart + MEDIATIME_FROM_BYTES(dwBytes);
|
|
|
|
IMediaSample_GetTime(pDataRq->pSample, &rtSampleStart, &rtSampleStop);
|
|
assert(rtStart == rtSampleStart);
|
|
assert(rtStop <= rtSampleStop);
|
|
|
|
IMediaSample_SetTime(pDataRq->pSample, &rtStart, &rtStop);
|
|
}
|
|
|
|
/* no need to close event handle since we will close it when the pin is destroyed */
|
|
CoTaskMemFree(pDataRq);
|
|
|
|
TRACE("-- %x\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI FileAsyncReader_SyncRead(IAsyncReader * iface, LONGLONG llPosition, LONG lLength, BYTE * pBuffer);
|
|
|
|
static HRESULT WINAPI FileAsyncReader_SyncReadAligned(IAsyncReader * iface, IMediaSample * pSample)
|
|
{
|
|
BYTE * pBuffer;
|
|
REFERENCE_TIME tStart;
|
|
REFERENCE_TIME tStop;
|
|
HRESULT hr;
|
|
|
|
TRACE("(%p)\n", pSample);
|
|
|
|
hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = IMediaSample_GetPointer(pSample, &pBuffer);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = FileAsyncReader_SyncRead(iface,
|
|
BYTES_FROM_MEDIATIME(tStart),
|
|
(LONG) BYTES_FROM_MEDIATIME(tStop - tStart),
|
|
pBuffer);
|
|
|
|
TRACE("-- %x\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI FileAsyncReader_SyncRead(IAsyncReader * iface, LONGLONG llPosition, LONG lLength, BYTE * pBuffer)
|
|
{
|
|
OVERLAPPED ovl;
|
|
HRESULT hr = S_OK;
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
TRACE("(%x%08x, %d, %p)\n", (ULONG)(llPosition >> 32), (ULONG)llPosition, lLength, pBuffer);
|
|
|
|
ZeroMemory(&ovl, sizeof(ovl));
|
|
|
|
ovl.hEvent = CreateEventW(NULL, 0, 0, NULL);
|
|
/* NOTE: llPosition is the actual byte position to start reading from */
|
|
ovl.u.s.Offset = (DWORD) llPosition;
|
|
ovl.u.s.OffsetHigh = (DWORD) (llPosition >> (sizeof(DWORD) * 8));
|
|
|
|
if (!ReadFile(This->hFile, pBuffer, lLength, NULL, &ovl))
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
|
|
if (hr == HRESULT_FROM_WIN32(ERROR_IO_PENDING))
|
|
hr = S_OK;
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
DWORD dwBytesRead;
|
|
|
|
if (!GetOverlappedResult(This->hFile, &ovl, &dwBytesRead, TRUE))
|
|
hr = HRESULT_FROM_WIN32(GetLastError());
|
|
}
|
|
|
|
CloseHandle(ovl.hEvent);
|
|
|
|
TRACE("-- %x\n", hr);
|
|
return hr;
|
|
}
|
|
|
|
static HRESULT WINAPI FileAsyncReader_Length(IAsyncReader * iface, LONGLONG * pTotal, LONGLONG * pAvailable)
|
|
{
|
|
DWORD dwSizeLow;
|
|
DWORD dwSizeHigh;
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
TRACE("(%p, %p)\n", pTotal, pAvailable);
|
|
|
|
if (((dwSizeLow = GetFileSize(This->hFile, &dwSizeHigh)) == -1) &&
|
|
(GetLastError() != NO_ERROR))
|
|
return HRESULT_FROM_WIN32(GetLastError());
|
|
|
|
*pTotal = (LONGLONG)dwSizeLow | (LONGLONG)dwSizeHigh << (sizeof(DWORD) * 8);
|
|
|
|
*pAvailable = *pTotal;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI FileAsyncReader_BeginFlush(IAsyncReader * iface)
|
|
{
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
TRACE("()\n");
|
|
|
|
This->bFlushing = TRUE;
|
|
CancelIo(This->hFile);
|
|
SetEvent(This->hEvent);
|
|
|
|
/* FIXME: free list */
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT WINAPI FileAsyncReader_EndFlush(IAsyncReader * iface)
|
|
{
|
|
FileAsyncReader *This = impl_from_IAsyncReader(iface);
|
|
|
|
TRACE("()\n");
|
|
|
|
This->bFlushing = FALSE;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static const IAsyncReaderVtbl FileAsyncReader_Vtbl =
|
|
{
|
|
FileAsyncReader_QueryInterface,
|
|
FileAsyncReader_AddRef,
|
|
FileAsyncReader_Release,
|
|
FileAsyncReader_RequestAllocator,
|
|
FileAsyncReader_Request,
|
|
FileAsyncReader_WaitForNext,
|
|
FileAsyncReader_SyncReadAligned,
|
|
FileAsyncReader_SyncRead,
|
|
FileAsyncReader_Length,
|
|
FileAsyncReader_BeginFlush,
|
|
FileAsyncReader_EndFlush,
|
|
};
|