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/***************************************************************************/
/* */
/* ftdebug.h */
/* */
/* Debugging and logging component (specification). */
/* */
/* 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. */
/* */
/***************************************************************************/
#ifndef FTDEBUG_H
#define FTDEBUG_H
#include <freetype/config/ftconfig.h> /* for FT_DEBUG_LEVEL_TRACE, */
/* FT_DEBUG_LEVEL_ERROR */
#ifdef __cplusplus
extern "C" {
#endif
/* A very stupid pre-processor trick. See K&R version 2 */
/* section A12.3 for details... */
/* */
/* It is also described in the section `Separate */
/* Expansion of Macro Arguments' in the info file */
/* `cpp.info', describing GNU cpp. */
/* */
#define FT_CAT( x, y ) x ## y
#define FT_XCAT( x, y ) FT_CAT( x, y )
#ifdef FT_DEBUG_LEVEL_TRACE
/* note that not all levels are used currently */
typedef enum FT_Trace_
{
/* the first level must always be `trace_any' */
trace_any = 0,
/* base components */
trace_aaraster, /* anti-aliasing raster (ftgrays.c) */
trace_calc, /* calculations (ftcalc.c) */
trace_extend, /* extension manager (ftextend.c) */
trace_glyph, /* glyph manager (ftglyph.c) */
trace_io, /* i/o monitoring (ftsystem.c) */
trace_init, /* initialization (ftinit.c) */
trace_list, /* list manager (ftlist.c) */
trace_memory, /* memory manager (ftobjs.c) */
trace_mm, /* MM interface (ftmm.c) */
trace_objs, /* base objects (ftobjs.c) */
trace_outline, /* outline management (ftoutln.c) */
trace_raster, /* rasterizer (ftraster.c) */
trace_stream, /* stream manager (ftstream.c) */
/* Cache sub-system */
trace_cache,
/* SFNT driver components */
trace_sfobjs, /* SFNT object handler (sfobjs.c) */
trace_ttcmap, /* charmap handler (ttcmap.c) */
trace_ttload, /* basic TrueType tables (ttload.c) */
trace_ttpost, /* PS table processing (ttpost.c) */
trace_ttsbit, /* TrueType sbit handling (ttsbit.c) */
/* TrueType driver components */
trace_ttdriver, /* TT font driver (ttdriver.c) */
trace_ttgload, /* TT glyph loader (ttgload.c) */
trace_ttinterp, /* bytecode interpreter (ttinterp.c) */
trace_ttobjs, /* TT objects manager (ttobjs.c) */
trace_ttpload, /* TT data/program loader (ttpload.c) */
/* Type 1 driver components */
trace_t1driver,
trace_t1gload,
trace_t1hint,
trace_t1load,
trace_t1objs,
trace_t1parse,
/* PostScript helper module `psaux' */
trace_t1decode,
trace_psobjs,
/* Type 2 driver components */
trace_t2driver,
trace_t2gload,
trace_t2load,
trace_t2objs,
trace_t2parse,
/* CID driver components */
trace_cidafm,
trace_ciddriver,
trace_cidgload,
trace_cidload,
trace_cidobjs,
trace_cidparse,
/* Windows fonts component */
trace_winfnt,
/* the last level must always be `trace_max' */
trace_max
} FT_Trace;
/* declared in ftdebug.c */
extern char ft_trace_levels[trace_max];
/*************************************************************************/
/* */
/* IMPORTANT! */
/* */
/* Each component must define the macro FT_COMPONENT to a valid FT_Trace */
/* value before using any TRACE macro. */
/* */
/*************************************************************************/
#define FT_TRACE( level, varformat ) \
do \
{ \
if ( ft_trace_levels[FT_COMPONENT] >= level ) \
FT_XCAT( FT_Message, varformat ); \
} while ( 0 )
FT_EXPORT_DEF( void ) FT_SetTraceLevel( FT_Trace component,
char level );
#elif defined( FT_DEBUG_LEVEL_ERROR )
#define FT_TRACE( level, varformat ) do ; while ( 0 ) /* nothing */
#else /* release mode */
#define FT_Assert( condition ) do ; while ( 0 ) /* nothing */
#define FT_TRACE( level, varformat ) do ; while ( 0 ) /* nothing */
#define FT_ERROR( varformat ) do ; while ( 0 ) /* nothing */
#endif /* FT_DEBUG_LEVEL_TRACE, FT_DEBUG_LEVEL_ERROR */
/*************************************************************************/
/* */
/* Define macros and functions that are common to the debug and trace */
/* modes. */
/* */
/* You need vprintf() to be able to compile ftdebug.c. */
/* */
/*************************************************************************/
#if defined( FT_DEBUG_LEVEL_TRACE ) || defined( FT_DEBUG_LEVEL_ERROR )
#include "stdio.h" /* for vprintf() */
#define FT_Assert( condition ) \
do \
{ \
if ( !( condition ) ) \
FT_Panic( "assertion failed on line %d of file %s\n", \
__LINE__, __FILE__ ); \
} while ( 0 )
/* print a message */
FT_EXPORT_DEF( void ) FT_Message( const char* fmt, ... );
/* print a message and exit */
FT_EXPORT_DEF( void ) FT_Panic( const char* fmt, ... );
#define FT_ERROR( varformat ) FT_XCAT( FT_Message, varformat )
#endif /* FT_DEBUG_LEVEL_TRACE || FT_DEBUG_LEVEL_ERROR */
/*************************************************************************/
/* */
/* You need two opening resp. closing parentheses! */
/* */
/* Example: FT_TRACE0(( "Value is %i", foo )) */
/* */
/*************************************************************************/
#define FT_TRACE0( varformat ) FT_TRACE( 0, varformat )
#define FT_TRACE1( varformat ) FT_TRACE( 1, varformat )
#define FT_TRACE2( varformat ) FT_TRACE( 2, varformat )
#define FT_TRACE3( varformat ) FT_TRACE( 3, varformat )
#define FT_TRACE4( varformat ) FT_TRACE( 4, varformat )
#define FT_TRACE5( varformat ) FT_TRACE( 5, varformat )
#define FT_TRACE6( varformat ) FT_TRACE( 6, varformat )
#define FT_TRACE7( varformat ) FT_TRACE( 7, varformat )
#ifdef __cplusplus
}
#endif
#endif /* FTDEBUG_H */
/* END */
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