/***************************************************************************/
/* */
/* ftdebug.c */
/* */
/* Debugging and logging component (body). */
/* */
/* Copyright 1996-2000 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
/*************************************************************************/
/* */
/* This component contains various macros and functions used to ease the */
/* debugging of the FreeType engine. Its main purpose is in assertion */
/* checking, tracing, and error detection. */
/* */
/* There are now three debugging modes: */
/* */
/* - trace mode */
/* */
/* Error and trace messages are sent to the log file (which can be the */
/* standard error output). */
/* */
/* - error mode */
/* */
/* Only error messages are generated. */
/* */
/* - release mode: */
/* */
/* No error message is sent or generated. The code is free from any */
/* debugging parts. */
/* */
/*************************************************************************/
#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
#ifdef FT_DEBUG_LEVEL_TRACE
char ft_trace_levels[trace_max];
#endif
#if defined( FT_DEBUG_LEVEL_ERROR ) || defined( FT_DEBUG_LEVEL_TRACE )
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
FT_EXPORT_DEF( void ) FT_Message( const char* fmt, ... )
{
va_list ap;
va_start( ap, fmt );
vprintf( fmt, ap );
va_end( ap );
}
FT_EXPORT_DEF( void ) FT_Panic( const char* fmt, ... )
{
va_list ap;
va_start( ap, fmt );
vprintf( fmt, ap );
va_end( ap );
exit( EXIT_FAILURE );
}
#ifdef FT_DEBUG_LEVEL_TRACE
FT_EXPORT_DEF( void ) FT_SetTraceLevel( FT_Trace component,
char level )
{
if ( component >= trace_max )
return;
/* if component is `trace_any', change _all_ levels at once */
if ( component == trace_any )
{
int n;
for ( n = trace_any; n < trace_max; n++ )
ft_trace_levels[n] = level;
}
else /* otherwise, only change individual component */
ft_trace_levels[component] = level;
}
#endif /* FT_DEBUG_LEVEL_TRACE */
#endif /* FT_DEBUG_LEVEL_TRACE || FT_DEBUG_LEVEL_ERROR */
/* END */
