/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-2-1/common/debug.h $
 * $Id: debug.h 48936 2010-05-04 12:00:16Z fingolfin $
 */

#ifndef COMMON_DEBUG_H
#define COMMON_DEBUG_H

#include "common/scummsys.h"
#include "common/textconsole.h"

namespace Common {

/**
 * Set the output formatter used by debug() and related functions.
 */
void setDebugOutputFormatter(OutputFormatter f);


}	// End of namespace Common


#ifdef DISABLE_TEXT_CONSOLE

inline void debug(const char *s, ...) {}
inline void debug(int level, const char *s, ...) {}
inline void debugN(int level, const char *s, ...) {}
inline void debugC(int level, uint32 engineChannel, const char *s, ...) {}
inline void debugC(uint32 engineChannel, const char *s, ...) {}
inline void debugCN(int level, uint32 engineChannel, const char *s, ...) {}
inline void debugCN(uint32 engineChannel, const char *s, ...) {}


#else


/**
 * Print a debug message to the text console (stdout).
 * Automatically appends a newline.
 */
void debug(const char *s, ...) GCC_PRINTF(1, 2);

/**
 * Print a debug message to the text console (stdout), but only if
 * the gDebugLevel equals at least the specified level.
 * As a rule of thumb, the more important the message, the lower the level.
 * Automatically appends a newline.
 */
void debug(int level, const char *s, ...) GCC_PRINTF(2, 3);

/**
 * Print a debug message to the text console (stdout), but only if
 * the gDebugLevel equals at least the specified level.
 * As a rule of thumb, the more important the message, the lower the level.
 * Does not append a newline.
 */
void debugN(int level, const char *s, ...) GCC_PRINTF(2, 3);

/**
 * Print a debug message to the text console (stdout), but only if
 * the gDebugLevel equals at least the specified level AND
 * if the specified special debug level is active.
 * As a rule of thumb, the more important the message, the lower the level.
 * Automatically appends a newline.
 *
 * @see enableDebugChannel
 */
void debugC(int level, uint32 debugChannels, const char *s, ...) GCC_PRINTF(3, 4);

/**
 * Print a debug message to the text console (stdout), but only if
 * the gDebugLevel equals at least the specified level AND
 * if the specified special debug level is active.
 * As a rule of thumb, the more important the message, the lower the level.
 * Does not append a newline automatically.
 *
 * @see enableDebugChannel
 */
void debugCN(int level, uint32 debugChannels, const char *s, ...) GCC_PRINTF(3, 4);

/**
 * Print a debug message to the text console (stdout), but only if
 * the specified special debug level is active.
 * Automatically appends a newline.
 *
 * @see enableDebugChannel
 */
void debugC(uint32 debugChannels, const char *s, ...) GCC_PRINTF(2, 3);

/**
 * Print a debug message to the text console (stdout), but only if
 * the specified special debug level is active.
 * Does not append a newline automatically.
 *
 * @see enableDebugChannel
 */
void debugCN(uint32 debugChannels, const char *s, ...) GCC_PRINTF(2, 3);

#endif

/**
 * The debug level. Initially set to -1, indicating that no debug output
 * should be shown. Positive values usually imply an increasing number of
 * debug output shall be generated, the higher the value, the more verbose the
 * information (although the exact semantics are up to the engines).
 */
extern int gDebugLevel;


#endif
