| | 1 | /***************************************************************************/ |
| | 2 | /* */ |
| | 3 | /* ftdebug.c */ |
| | 4 | /* */ |
| | 5 | /* Debugging and logging component (body). */ |
| | 6 | /* */ |
| | 7 | /* Copyright 1996-2000 by */ |
| | 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| | 9 | /* */ |
| | 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 */ |
| | 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 | |
| | 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 | |
| | 43 | |
| | 44 | #include <freetype/internal/ftdebug.h> |
| | 45 | |
| | 46 | #ifdef FT_DEBUG_LEVEL_TRACE |
| | 47 | char ft_trace_levels[trace_max]; |
| | 48 | #endif |
| | 49 | |
| | 50 | |
| | 51 | #if defined( FT_DEBUG_LEVEL_ERROR ) || defined( FT_DEBUG_LEVEL_TRACE ) |
| | 52 | |
| | 53 | |
| | 54 | #include <stdarg.h> |
| | 55 | #include <stdlib.h> |
| | 56 | #include <string.h> |
| | 57 | |
| | 58 | |
| | 59 | FT_EXPORT_FUNC( void ) FT_Message( const char* fmt, ... ) |
| | 60 | { |
| | 61 | va_list ap; |
| | 62 | |
| | 63 | |
| | 64 | va_start( ap, fmt ); |
| | 65 | vprintf( fmt, ap ); |
| | 66 | va_end( ap ); |
| | 67 | } |
| | 68 | |
| | 69 | |
| | 70 | FT_EXPORT_FUNC( void ) FT_Panic( const char* fmt, ... ) |
| | 71 | { |
| | 72 | va_list ap; |
| | 73 | |
| | 74 | |
| | 75 | va_start( ap, fmt ); |
| | 76 | vprintf( fmt, ap ); |
| | 77 | va_end( ap ); |
| | 78 | |
| | 79 | exit( EXIT_FAILURE ); |
| | 80 | } |
| | 81 | |
| | 82 | |
| | 83 | #ifdef FT_DEBUG_LEVEL_TRACE |
| | 84 | |
| | 85 | |
| | 86 | /*************************************************************************/ |
| | 87 | /* */ |
| | 88 | /* <Function> */ |
| | 89 | /* FT_SetTraceLevel */ |
| | 90 | /* */ |
| | 91 | /* <Description> */ |
| | 92 | /* Sets the trace level for debugging. */ |
| | 93 | /* */ |
| | 94 | /* <Input> */ |
| | 95 | /* component :: The component which should be traced. See ftdebug.h */ |
| | 96 | /* for a complete list. If set to `trace_any', all */ |
| | 97 | /* components will be traced. */ |
| | 98 | /* level :: The tracing level. */ |
| | 99 | /* */ |
| | 100 | FT_EXPORT_FUNC( void ) FT_SetTraceLevel( FT_Trace component, |
| | 101 | char level ) |
| | 102 | { |
| | 103 | if ( component >= trace_max ) |
| | 104 | return; |
| | 105 | |
| | 106 | /* if component is `trace_any', change _all_ levels at once */ |
| | 107 | if ( component == trace_any ) |
| | 108 | { |
| | 109 | int n; |
| | 110 | |
| | 111 | |
| | 112 | for ( n = trace_any; n < trace_max; n++ ) |
| | 113 | ft_trace_levels[n] = level; |
| | 114 | } |
| | 115 | else /* otherwise, only change individual component */ |
| | 116 | ft_trace_levels[component] = level; |
| | 117 | } |
| | 118 | |
| | 119 | #endif /* FT_DEBUG_LEVEL_TRACE */ |
| | 120 | |
| | 121 | #endif /* FT_DEBUG_LEVEL_TRACE || FT_DEBUG_LEVEL_ERROR */ |
| | 122 | |
| | 123 | |
| | 124 | /* END */ |
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