SWORD25: Importing original sources

svn-id: r53171

1 files changed, 224 insertions, 0 deletions

diff --git a/engines/sword25/kernel/log.cpp b/engines/sword25/kernel/log.cpp
new file mode 100755
index 0000000000..bf1d5147b1
--- /dev/null
+++ b/engines/sword25/kernel/log.cpp
@@ -0,0 +1,224 @@
+// -----------------------------------------------------------------------------
+// This file is part of Broken Sword 2.5
+// Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdörfer
+//
+// Broken Sword 2.5 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.
+//
+// Broken Sword 2.5 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 Broken Sword 2.5; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+// -----------------------------------------------------------------------------
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <string>
+
+#include "filesystemutil.h"
+#include "log.h"
+#include "debug/debugtools.h"
+
+// Konstanten
+static const char*	BF_LOG_FILENAME = "log.txt";
+static const size_t	LOG_BUFFERSIZE = 1024 * 16;
+
+// Logging soll nur stattfinden wenn es aktiviert ist
+#ifdef BS_ACTIVATE_LOGGING
+
+FILE*										BS_Log::_LogFile = NULL;
+bool										BS_Log::_LineBegin = true;
+const char*									BS_Log::_Prefix = NULL;
+const char*									BS_Log::_File = NULL;
+int											BS_Log::_Line = 0;
+bool										BS_Log::_AutoNewline = false;
+std::vector<BS_Log::LOG_LISTENER_CALLBACK>	BS_Log::_LogListener;
+
+bool BS_Log::_CreateLog()
+{
+	// Logfile öffnen
+	BS_FileSystemUtil::GetInstance().CreateDirectory(BS_FileSystemUtil::GetInstance().GetUserdataDirectory());
+	_LogFile = fopen((BS_FileSystemUtil::GetInstance().GetUserdataDirectory() + "\\" + BF_LOG_FILENAME).c_str(), "w");
+
+	if (_LogFile)
+	{
+		// Sicherstellen, dass es beim Beenden geschlossen wird
+		atexit(_CloseLog);
+
+		// Titelzeile in das Logfile schreiben
+		Log("Broken Sword 2.5 Engine - Build: %s - %s - VersionID: %s\n", __DATE__, __TIME__, BS_Debugtools::GetVersionID());
+		Log("-----------------------------------------------------------------------------------------------------\n");
+
+		return true;
+	}
+
+	// Log-File konnte nicht erstellt werden
+	return false;
+}
+
+void BS_Log::_CloseLog()
+{
+	if (_LogFile) fclose(_LogFile);
+}
+
+void BS_Log::Log(const char* Format, ...)
+{
+	char Message[LOG_BUFFERSIZE];
+
+	// Nachricht erzeugen
+	va_list ArgList;
+	va_start(ArgList, Format);
+	_vsnprintf(Message, sizeof(Message), Format, ArgList);
+
+	// Nachricht loggen
+	_WriteLog(Message);
+
+	_FlushLog();
+}
+
+void BS_Log::LogPrefix(const char* Prefix, const char* Format, ...)
+{
+	char Message[LOG_BUFFERSIZE];
+	char ExtFormat[LOG_BUFFERSIZE];
+
+	// Falls die Ausgabe am Anfang einer neuen Zeile aufgehört hat, muss die neue Ausgabe mit dem Präfix
+	// beginnen
+	ExtFormat[0] = 0;
+	if (_LineBegin)
+	{
+		_snprintf(ExtFormat, sizeof(ExtFormat), "%s%s: ", ExtFormat, Prefix);
+		_LineBegin = false;
+	}
+	// Formatstring zeilenweise durchgehen und an jeden Zeilenanfang das Präfix setzen
+	for (;;)
+	{
+		const char* NextLine = strstr(Format, "\n");
+		if (!NextLine || *(NextLine + strlen("\n")) == 0)
+		{
+			_snprintf(ExtFormat, sizeof(ExtFormat), "%s%s", ExtFormat, Format);
+			if (NextLine) _LineBegin = true;
+			break;	
+		}
+		else
+		{
+			strncat(ExtFormat, Format, (NextLine - Format) + strlen("\n"));
+			_snprintf(ExtFormat, sizeof(ExtFormat), "%s%s: ", ExtFormat, Prefix);
+		}
+
+		Format = NextLine + strlen("\n");
+	}
+	
+	// Nachricht erzeugen
+	va_list ArgList;
+	va_start(ArgList, Format);
+	_vsnprintf(Message, sizeof(Message), ExtFormat, ArgList);
+
+	// Nachricht schreiben
+	_WriteLog(Message);
+
+	_FlushLog();
+}
+
+void BS_Log::LogDecorated(const char* Format, ...)
+{
+	// Nachricht erzeugen
+	char Message[LOG_BUFFERSIZE];
+	va_list ArgList;
+	va_start(ArgList, Format);
+	_vsnprintf(Message, sizeof(Message), Format, ArgList);
+
+	// Zweiten Prefix erzeugen, falls gewünscht
+	char SecondaryPrefix[1024];
+	if (_File && _Line)
+		_snprintf(SecondaryPrefix, sizeof(SecondaryPrefix), "(file: %s, line: %d) - ", _File, _Line);
+	
+	// Nachricht zeilenweise ausgeben und an jeden Zeilenanfang das Präfix setzen
+	char* MessageWalker = Message;
+	for (;;)
+	{
+		char* NextLine = strstr(MessageWalker, "\n");
+		if (NextLine)
+		{
+			*NextLine = 0;
+			if (_LineBegin)
+			{
+				_WriteLog(_Prefix);
+				if (_File && _Line)
+					_WriteLog(SecondaryPrefix);
+			}
+			_WriteLog(MessageWalker);
+			_WriteLog("\n");
+			MessageWalker = NextLine + sizeof("\n") - 1;
+			_LineBegin = true;
+		}
+		else
+		{
+			if (_LineBegin)
+			{
+				_WriteLog(_Prefix);
+				if (_File && _Line)
+					_WriteLog(SecondaryPrefix);
+			}
+			_WriteLog(MessageWalker);
+			_LineBegin = false;
+			break;
+		}
+	}
+
+	// Falls gewünscht, wird ans Ende der Nachricht automatisch ein Newline angehängt.
+	if (_AutoNewline)
+	{
+		_WriteLog("\n");
+		_LineBegin = true;
+	}
+
+	// Pseudoparameter zurücksetzen
+	_Prefix = NULL;
+	_File = 0;
+	_Line = 0;
+	_AutoNewline = false;
+
+	_FlushLog();
+}
+
+int BS_Log::_WriteLog(const char* Message)
+{
+	if (!_LogFile) if (!_CreateLog()) return false;
+
+	std::vector<LOG_LISTENER_CALLBACK>::iterator Iter = _LogListener.begin();
+	for (; Iter != _LogListener.end(); ++Iter)
+		(*Iter)(Message);
+
+	fprintf(_LogFile, Message);
+
+	return true;
+}
+
+void BS_Log::_FlushLog()
+{
+	fflush(_LogFile);
+}
+
+void (*BS_LogPtr)(const char *, ...) = BS_Log::Log;
+extern "C"
+{
+	void BS_Log_C(const char* Message)
+	{
+		BS_LogPtr(Message);
+	}
+}
+
+#else
+
+extern "C"
+{
+	void BS_Log_C(const char* Message) {};
+}
+
+#endif