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94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/*
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* QUERTZ.DLL - ReactOS DirectShow Runtime
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*
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* Copyright 2008 Dmitry Chapyshev
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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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#include <windows.h>
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#include <stdio.h>
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#include <wchar.h>
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#include <tchar.h>
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#define MAX_ERROR_TEXT_LEN 160
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DWORD WINAPI
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AMGetErrorTextA(HRESULT hr, LPTSTR buffer, DWORD maxlen)
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{
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int len;
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static const TCHAR format[] = {'E','r','r','o','r',':',' ','0','x','%','l','x',0};
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TCHAR error[MAX_ERROR_TEXT_LEN];
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if (!buffer) return 0;
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_stprintf(error, format, hr);
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if ((len = _tcslen(error)) >= maxlen) return 0;
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_tcscpy(buffer, error);
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return len;
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}
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DWORD WINAPI
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AMGetErrorTextW(HRESULT hr, LPWSTR buffer, DWORD maxlen)
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{
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int len;
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static const WCHAR format[] = {'E','r','r','o','r',':',' ','0','x','%','l','x',0};
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WCHAR error[MAX_ERROR_TEXT_LEN];
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if (!buffer) return 0;
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swprintf(error, format, hr);
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if ((len = wcslen(error)) >= maxlen) return 0;
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wcscpy(buffer, error);
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return len;
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}
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LONG WINAPI
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AmpFactorToDB(LONG ampfactor)
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{
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return 0;
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}
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LONG WINAPI
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DBToAmpFactor(LONG db)
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{
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/* Avoid divide by zero (probably during range computation) in Windows Media Player 6.4 */
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if (db < -1000)
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return 0;
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return 100;
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}
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HRESULT WINAPI
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DllCanUnloadNow(void)
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{
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return S_OK;
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}
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HRESULT WINAPI
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DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
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{
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return S_OK;
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}
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HRESULT WINAPI
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DllRegisterServer(void)
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{
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return S_OK;
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}
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HRESULT WINAPI
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DllUnregisterServer(void)
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{
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return S_OK;
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}
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