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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 */ |