一个播放AVI的VC程序

/** * LogMessage.cpp * Copyright (C) 2004 Nate * * This file is part of DigitalWatch, a free DTV watching and recording * program for the VisionPlus DVB-T. * * DigitalWatch is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * DigitalWatch 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with DigitalWatch; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <stdio.h> #include "LogMessage.h" #include "GlobalFunctions.h" ////////////////////////////////////////////////////////////////////// // LogMessageCallback ////////////////////////////////////////////////////////////////////// LogMessageCallback::LogMessageCallback() { static int handle = 1; m_handle = handle++; m_indent = 0; } LogMessageCallback::~LogMessageCallback() { } int LogMessageCallback::GetHandle() { return m_handle; } void LogMessageCallback::Indent() { m_indent++; } void LogMessageCallback::Unindent() { m_indent--; } void LogMessageCallback::Write(LPWSTR pStr) { } void LogMessageCallback::Show(LPWSTR pStr) { } void LogMessageCallback::Clear() { } ////////////////////////////////////////////////////////////////////// // LogMessage ////////////////////////////////////////////////////////////////////// LogMessage::LogMessage() { m_lStrLength = 10; m_pStr = new wchar_t[m_lStrLength]; m_pStr[0] = '\0'; m_indent = 0; } LogMessage::~LogMessage() { if (m_pStr) { if (m_pStr[0] != 0) WriteLogMessage(); delete[] m_pStr; m_pStr = NULL; } CAutoLock callbacksLock(&m_callbacksLock); m_callbacks.clear(); } int LogMessage::AddCallback(LogMessageCallback *callback) { if (callback) { int handle = callback->GetHandle(); CAutoLock callbacksLock(&m_callbacksLock); vector<LogMessageCallback *>::iterator it = m_callbacks.begin(); while ( it != m_callbacks.end() ) { if ((*it)->GetHandle() == handle) { ::OutputDebugString("LogMessageCallback added to LogMessage a second time.\n"); return handle; } it++; } m_callbacks.push_back(callback); return handle; } return 0; } void LogMessage::RemoveCallback(int handle) { CAutoLock callbacksLock(&m_callbacksLock); vector<LogMessageCallback *>::iterator it = m_callbacks.begin(); while ( it != m_callbacks.end() ) { if ((*it)->GetHandle() == handle) { m_callbacks.erase(it); continue; } it++; } } void LogMessage::WriteLogMessage() { if (m_pStr && (m_pStr[0] != 0)) { CAutoLock callbacksLock(&m_callbacksLock); vector<LogMessageCallback *>::iterator it = m_callbacks.begin(); for ( ; it != m_callbacks.end() ; it++ ) { (*it)->Write(m_pStr); } m_pStr[0] = 0; } } int LogMessage::Write() { WriteLogMessage(); return FALSE; } int LogMessage::Write(int returnValue) { WriteLogMessage(); return returnValue; } int LogMessage::Show() { return Show(FALSE); } int LogMessage::Show(int returnValue) { if (m_pStr && (m_pStr[0] != 0)) { CAutoLock callbacksLock(&m_callbacksLock); vector<LogMessageCallback *>::iterator it = m_callbacks.begin(); for ( ; it != m_callbacks.end() ; it++ ) { (*it)->Show(m_pStr); (*it)->Write(m_pStr); } //WriteLogMessage(); m_pStr[0] = 0; } return returnValue; } void LogMessage::Indent() { CAutoLock callbacksLock(&m_callbacksLock); vector<LogMessageCallback *>::iterator it = m_callbacks.begin(); for ( ; it != m_callbacks.end() ; it++ ) { (*it)->Indent(); } } void LogMessage::Unindent() { CAutoLock callbacksLock(&m_callbacksLock); vector<LogMessageCallback *>::iterator it = m_callbacks.begin(); for ( ; it != m_callbacks.end() ; it++ ) { (*it)->Unindent(); } } void LogMessage::ClearFile() { CAutoLock callbacksLock(&m_callbacksLock); vector<LogMessageCallback *>::iterator it = m_callbacks.begin(); for ( ; it != m_callbacks.end() ; it++ ) { (*it)->Clear(); } } void LogMessage::LogVersionNumber() { USES_CONVERSION; wchar_t filename[MAX_PATH]; GetCommandExe((LPWSTR)&filename); DWORD zeroHandle, size = 0; while (TRUE) { size = GetFileVersionInfoSize(W2T((LPWSTR)&filename), &zeroHandle); if (size == 0) break; LPVOID pBlock = (LPVOID) new char[size]; if (!GetFileVersionInfo(W2T((LPWSTR)&filename), zeroHandle, size, pBlock)) { delete[] pBlock; break; } struct LANGANDCODEPAGE { WORD wLanguage; WORD wCodePage; } *lpTranslate; UINT uLen = 0; if (!VerQueryValue(pBlock, TEXT("\\VarFileInfo\\Translation"), (LPVOID*)&lpTranslate, &uLen) || (uLen == 0)) { delete[] pBlock; break; } LPWSTR SubBlock = new wchar_t[256]; swprintf(SubBlock, L"\\StringFileInfo\\%04x%04x\\FileVersion", lpTranslate[0].wLanguage, lpTranslate[0].wCodePage); LPSTR lpBuffer; UINT dwBytes = 0; if (!VerQueryValue(pBlock, W2T(SubBlock), (LPVOID*)&lpBuffer, &dwBytes)) { delete[] pBlock; delete[] SubBlock; break; } ((*this) << "Build - v" << lpBuffer << "\n").Write(); delete[] SubBlock; delete[] pBlock; break; } if (size == 0) ((*this) << "Error reading version number\n").Write(); } /* void LogMessage::writef(LPWSTR sz,...) { va_list va; va_start(va, sz); int size = 10;//_vscwprintf(sz, va); LPWSTR buf; while (TRUE) { buf = new wchar_t[size+1]; int result = _vsnwprintf(buf, size, sz, va); if (result >= 0) break; delete[] buf; size *= 2; } va_end(va); Require(size); _snwprintf(m_pStr, m_lStrLength, L"%s%s", m_pStr, buf); Write(FALSE); } */ void LogMessage::showf(LPSTR sz,...) { va_list va; va_start(va, sz); int size = 80;//_vscwprintf(sz, va); LPSTR buf; int length; while (TRUE) { buf = new char[size+1]; length = _vsnprintf(buf, size, sz, va); if (length >= 0) break; delete[] buf; size *= 2; } va_end(va); if (length >= m_lStrLength) { LPWSTR newStr = new wchar_t[length + 1]; ZeroMemory(newStr, (length+1)*sizeof(wchar_t)); memcpy(newStr, m_pStr, m_lStrLength); m_lStrLength = length + 1; delete[] m_pStr; m_pStr = newStr; } _snwprintf(m_pStr, m_lStrLength, L"%s%S", m_pStr, buf); delete[] buf; Show(FALSE); } //Numbers LogMessage& LogMessage::operator<< (const int& val) { _writef(L"%s%i", m_pStr, val); return *this; } LogMessage& LogMessage::operator<< (const double& val) { _writef(L"%s%f", m_pStr, val); return *this; } LogMessage& LogMessage::operator<< (const __int64& val) { _writef(L"%s%i", m_pStr, val); return *this; } //Characters LogMessage& LogMessage::operator<< (const char& val) { _writef(L"%s%C", m_pStr, val); return *this; } LogMessage& LogMessage::operator<< (const wchar_t& val) { _writef(L"%s%c", m_pStr, val); return *this; } //Strings LogMessage& LogMessage::operator<< (const LPSTR& val) { _writef(L"%s%S", m_pStr, val); return *this; } LogMessage& LogMessage::operator<< (const LPWSTR& val) { _writef(L"%s%s", m_pStr, val); return *this; } LogMessage& LogMessage::operator<< (const LPCSTR& val) { _writef(L"%s%S", m_pStr, val); return *this; } LogMessage& LogMessage::operator<< (const LPCWSTR& val) { _writef(L"%s%s", m_pStr, val); return *this; } LPWSTR LogMessage::GetBuffer() { return m_pStr; } void LogMessage::_writef(