226 lines
8.4 KiB
C
226 lines
8.4 KiB
C
/***************************************************************************/
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/* */
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/* ftdebug.h */
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/* */
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/* Debugging and logging component (specification). */
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/* */
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/* Copyright 1996-2000 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef FTDEBUG_H
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#define FTDEBUG_H
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#include <freetype/config/ftconfig.h> /* for FT_DEBUG_LEVEL_TRACE, */
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/* FT_DEBUG_LEVEL_ERROR */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* A very stupid pre-processor trick. See K&R version 2 */
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/* section A12.3 for details... */
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/* */
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/* It is also described in the section `Separate */
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/* Expansion of Macro Arguments' in the info file */
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/* `cpp.info', describing GNU cpp. */
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/* */
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#define FT_CAT( x, y ) x ## y
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#define FT_XCAT( x, y ) FT_CAT( x, y )
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#ifdef FT_DEBUG_LEVEL_TRACE
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/* note that not all levels are used currently */
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typedef enum FT_Trace_
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{
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/* the first level must always be `trace_any' */
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trace_any = 0,
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/* base components */
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trace_aaraster, /* anti-aliasing raster (ftgrays.c) */
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trace_calc, /* calculations (ftcalc.c) */
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trace_extend, /* extension manager (ftextend.c) */
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trace_glyph, /* glyph manager (ftglyph.c) */
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trace_io, /* i/o monitoring (ftsystem.c) */
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trace_init, /* initialization (ftinit.c) */
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trace_list, /* list manager (ftlist.c) */
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trace_memory, /* memory manager (ftobjs.c) */
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trace_mm, /* MM interface (ftmm.c) */
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trace_objs, /* base objects (ftobjs.c) */
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trace_outline, /* outline management (ftoutln.c) */
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trace_raster, /* rasterizer (ftraster.c) */
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trace_stream, /* stream manager (ftstream.c) */
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/* SFNT driver components */
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trace_sfobjs, /* SFNT object handler (sfobjs.c) */
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trace_ttcmap, /* charmap handler (ttcmap.c) */
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trace_ttload, /* basic TrueType tables (ttload.c) */
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trace_ttpost, /* PS table processing (ttpost.c) */
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trace_ttsbit, /* TrueType sbit handling (ttsbit.c) */
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/* TrueType driver components */
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trace_ttdriver, /* TT font driver (ttdriver.c) */
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trace_ttgload, /* TT glyph loader (ttgload.c) */
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trace_ttinterp, /* bytecode interpreter (ttinterp.c) */
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trace_ttobjs, /* TT objects manager (ttobjs.c) */
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trace_ttpload, /* TT data/program loader (ttpload.c) */
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/* Type 1 driver components */
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trace_t1driver,
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trace_t1gload,
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trace_t1hint,
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trace_t1load,
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trace_t1objs,
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/* experimental Type 1 driver components */
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trace_z1driver,
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trace_z1gload,
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trace_z1hint,
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trace_z1load,
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trace_z1objs,
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trace_z1parse,
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/* Type 2 driver components */
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trace_t2driver,
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trace_t2gload,
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trace_t2load,
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trace_t2objs,
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trace_t2parse,
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/* CID driver components */
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trace_cidafm,
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trace_ciddriver,
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trace_cidgload,
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trace_cidload,
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trace_cidobjs,
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trace_cidparse,
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/* Windows fonts component */
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trace_winfnt,
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/* the last level must always be `trace_max' */
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trace_max
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} FT_Trace;
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/* declared in ftdebug.c */
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extern char ft_trace_levels[trace_max];
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/*************************************************************************/
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/* */
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/* IMPORTANT! */
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/* */
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/* Each component must define the macro FT_COMPONENT to a valid FT_Trace */
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/* value before using any TRACE macro. */
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/* */
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/*************************************************************************/
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#define FT_TRACE( level, varformat ) \
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do \
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{ \
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if ( ft_trace_levels[FT_COMPONENT] >= level ) \
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FT_XCAT( FT_Message, varformat ); \
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} while ( 0 )
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FT_EXPORT_DEF( void ) FT_SetTraceLevel( FT_Trace component,
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char level );
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#elif defined( FT_DEBUG_LEVEL_ERROR )
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#define FT_TRACE( level, varformat ) do ; while ( 0 ) /* nothing */
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#else /* release mode */
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#define FT_Assert( condition ) do ; while ( 0 ) /* nothing */
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#define FT_TRACE( level, varformat ) do ; while ( 0 ) /* nothing */
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#define FT_ERROR( varformat ) do ; while ( 0 ) /* nothing */
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#endif /* FT_DEBUG_LEVEL_TRACE, FT_DEBUG_LEVEL_ERROR */
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/*************************************************************************/
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/* */
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/* Define macros and functions that are common to the debug and trace */
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/* modes. */
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/* */
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/* You need vprintf() to be able to compile ftdebug.c. */
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/* */
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/*************************************************************************/
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#if defined( FT_DEBUG_LEVEL_TRACE ) || defined( FT_DEBUG_LEVEL_ERROR )
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#include "stdio.h" /* for vprintf() */
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#define FT_Assert( condition ) \
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do \
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{ \
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if ( !( condition ) ) \
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FT_Panic( "assertion failed on line %d of file %s\n", \
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__LINE__, __FILE__ ); \
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} while ( 0 )
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/* print a message */
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FT_EXPORT_DEF( void ) FT_Message( const char* fmt, ... );
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/* print a message and exit */
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FT_EXPORT_DEF( void ) FT_Panic( const char* fmt, ... );
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#define FT_ERROR( varformat ) FT_XCAT( FT_Message, varformat )
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#endif /* FT_DEBUG_LEVEL_TRACE || FT_DEBUG_LEVEL_ERROR */
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/*************************************************************************/
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/* */
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/* You need two opening resp. closing parentheses! */
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/* */
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/* Example: FT_TRACE0(( "Value is %i", foo )) */
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/* */
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/*************************************************************************/
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#define FT_TRACE0( varformat ) FT_TRACE( 0, varformat )
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#define FT_TRACE1( varformat ) FT_TRACE( 1, varformat )
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#define FT_TRACE2( varformat ) FT_TRACE( 2, varformat )
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#define FT_TRACE3( varformat ) FT_TRACE( 3, varformat )
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#define FT_TRACE4( varformat ) FT_TRACE( 4, varformat )
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#define FT_TRACE5( varformat ) FT_TRACE( 5, varformat )
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#define FT_TRACE6( varformat ) FT_TRACE( 6, varformat )
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#define FT_TRACE7( varformat ) FT_TRACE( 7, varformat )
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#ifdef __cplusplus
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}
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#endif
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#endif /* FTDEBUG_H */
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/* END */
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