David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1 | /***************************************************************************/ |
| 2 | /* */ |
| 3 | /* ftdebug.c */ |
| 4 | /* */ |
| 5 | /* Debugging and logging component (body). */ |
| 6 | /* */ |
Werner Lemberg | f993b6a | 2000-01-08 17:10:33 +0000 | [diff] [blame] | 7 | /* Copyright 1996-2000 by */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| 9 | /* */ |
Werner Lemberg | 4e6dd85 | 2000-06-05 05:26:15 +0000 | [diff] [blame] | 10 | /* This file is part of the FreeType project, and may only be used, */ |
| 11 | /* modified, and distributed under the terms of the FreeType project */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
| 13 | /* this file you indicate that you have read the license and */ |
| 14 | /* understand and accept it fully. */ |
| 15 | /* */ |
| 16 | /***************************************************************************/ |
| 17 | |
| 18 | |
Werner Lemberg | 9a754ce | 2000-06-02 21:31:32 +0000 | [diff] [blame] | 19 | /*************************************************************************/ |
| 20 | /* */ |
| 21 | /* This component contains various macros and functions used to ease the */ |
| 22 | /* debugging of the FreeType engine. Its main purpose is in assertion */ |
| 23 | /* checking, tracing, and error detection. */ |
| 24 | /* */ |
| 25 | /* There are now three debugging modes: */ |
| 26 | /* */ |
| 27 | /* - trace mode */ |
| 28 | /* */ |
| 29 | /* Error and trace messages are sent to the log file (which can be the */ |
| 30 | /* standard error output). */ |
| 31 | /* */ |
| 32 | /* - error mode */ |
| 33 | /* */ |
| 34 | /* Only error messages are generated. */ |
| 35 | /* */ |
| 36 | /* - release mode: */ |
| 37 | /* */ |
| 38 | /* No error message is sent or generated. The code is free from any */ |
| 39 | /* debugging parts. */ |
| 40 | /* */ |
| 41 | /*************************************************************************/ |
| 42 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 43 | |
| 44 | #include <ft2build.h> |
| 45 | #include FT_INTERNAL_DEBUG_H |
| 46 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 47 | |
| 48 | #ifdef FT_DEBUG_LEVEL_TRACE |
| 49 | char ft_trace_levels[trace_max]; |
| 50 | #endif |
| 51 | |
| 52 | |
| 53 | #if defined( FT_DEBUG_LEVEL_ERROR ) || defined( FT_DEBUG_LEVEL_TRACE ) |
| 54 | |
| 55 | |
| 56 | #include <stdarg.h> |
| 57 | #include <stdlib.h> |
| 58 | #include <string.h> |
| 59 | |
| 60 | |
David Turner | 76a5f62 | 2000-11-04 01:55:49 +0000 | [diff] [blame] | 61 | FT_EXPORT_DEF( void ) FT_Message( const char* fmt, ... ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 62 | { |
| 63 | va_list ap; |
| 64 | |
| 65 | |
| 66 | va_start( ap, fmt ); |
| 67 | vprintf( fmt, ap ); |
| 68 | va_end( ap ); |
| 69 | } |
| 70 | |
| 71 | |
David Turner | 76a5f62 | 2000-11-04 01:55:49 +0000 | [diff] [blame] | 72 | FT_EXPORT_DEF( void ) FT_Panic( const char* fmt, ... ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 73 | { |
| 74 | va_list ap; |
| 75 | |
| 76 | |
| 77 | va_start( ap, fmt ); |
| 78 | vprintf( fmt, ap ); |
| 79 | va_end( ap ); |
| 80 | |
| 81 | exit( EXIT_FAILURE ); |
| 82 | } |
| 83 | |
| 84 | |
| 85 | #ifdef FT_DEBUG_LEVEL_TRACE |
| 86 | |
David Turner | 76a5f62 | 2000-11-04 01:55:49 +0000 | [diff] [blame] | 87 | FT_EXPORT_DEF( void ) FT_SetTraceLevel( FT_Trace component, |
| 88 | char level ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 89 | { |
| 90 | if ( component >= trace_max ) |
| 91 | return; |
| 92 | |
Werner Lemberg | deb4e98 | 2000-06-29 03:14:25 +0000 | [diff] [blame] | 93 | /* if component is `trace_any', change _all_ levels at once */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 94 | if ( component == trace_any ) |
| 95 | { |
| 96 | int n; |
| 97 | |
| 98 | |
| 99 | for ( n = trace_any; n < trace_max; n++ ) |
| 100 | ft_trace_levels[n] = level; |
| 101 | } |
| 102 | else /* otherwise, only change individual component */ |
| 103 | ft_trace_levels[component] = level; |
| 104 | } |
| 105 | |
| 106 | #endif /* FT_DEBUG_LEVEL_TRACE */ |
| 107 | |
| 108 | #endif /* FT_DEBUG_LEVEL_TRACE || FT_DEBUG_LEVEL_ERROR */ |
| 109 | |
Werner Lemberg | 63408a1 | 2000-12-13 23:44:37 +0000 | [diff] [blame^] | 110 | |
| 111 | /* ANSI C doesn't allow empty files, so we insert a dummy symbol */ |
David Turner | 170c0d4 | 2000-12-13 19:55:11 +0000 | [diff] [blame] | 112 | extern const int ft_debug_dummy; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 113 | |
Werner Lemberg | 63408a1 | 2000-12-13 23:44:37 +0000 | [diff] [blame^] | 114 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 115 | /* END */ |