1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/***************************************************************************/
/* */
/* ftdebug.c */
/* */
/* Debugging and logging component for WinCE (body). */
/* */
/* Copyright 1996-2001, 2002, 2005, 2008, 2009 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. */
/* */
/***************************************************************************/
/*************************************************************************/
/* */
/* This component contains various macros and functions used to ease the */
/* debugging of the FreeType engine. Its main purpose is in assertion */
/* checking, tracing, and error detection. */
/* */
/* There are now three debugging modes: */
/* */
/* - trace mode */
/* */
/* Error and trace messages are sent to the log file (which can be the */
/* standard error output). */
/* */
/* - error mode */
/* */
/* Only error messages are generated. */
/* */
/* - release mode: */
/* */
/* No error message is sent or generated. The code is free from any */
/* debugging parts. */
/* */
/*************************************************************************/
#include <ft2build.h>
#include <freetype/internal/ftdebug.h>
#ifdef FT_DEBUG_LEVEL_ERROR
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
void
OutputDebugStringEx( const char* str )
{
static WCHAR buf[8192];
int sz = MultiByteToWideChar( CP_ACP, 0, str, -1, buf,
sizeof ( buf ) / sizeof ( *buf ) );
if ( !sz )
lstrcpyW( buf, L"OutputDebugStringEx: MultiByteToWideChar failed" );
OutputDebugStringW( buf );
}
FT_BASE_DEF( void )
FT_Message( const char* fmt, ... )
{
static char buf[8192];
va_list ap;
va_start( ap, fmt );
vprintf( fmt, ap );
/* send the string to the debugger as well */
vsprintf( buf, fmt, ap );
OutputDebugStringEx( buf );
va_end( ap );
}
FT_BASE_DEF( void )
FT_Panic( const char* fmt, ... )
{
static char buf[8192];
va_list ap;
va_start( ap, fmt );
vsprintf( buf, fmt, ap );
OutputDebugStringEx( buf );
va_end( ap );
exit( EXIT_FAILURE );
}
#ifdef FT_DEBUG_LEVEL_TRACE
/* array of trace levels, initialized to 0 */
int ft_trace_levels[trace_count];
/* define array of trace toggle names */
#define FT_TRACE_DEF( x ) #x ,
static const char* ft_trace_toggles[trace_count + 1] =
{
#include FT_INTERNAL_TRACE_H
NULL
};
#undef FT_TRACE_DEF
/*************************************************************************/
/* */
/* Initialize the tracing sub-system. This is done by retrieving the */
/* value of the "FT2_DEBUG" environment variable. It must be a list of */
/* toggles, separated by spaces, `;' or `,'. Example: */
/* */
/* "any:3 memory:6 stream:5" */
/* */
/* This will request that all levels be set to 3, except the trace level */
/* for the memory and stream components which are set to 6 and 5, */
/* respectively. */
/* */
/* See the file <freetype/internal/fttrace.h> for details of the */
/* available toggle names. */
/* */
/* The level must be between 0 and 6; 0 means quiet (except for serious */
/* runtime errors), and 6 means _very_ verbose. */
/* */
FT_BASE_DEF( void )
ft_debug_init( void )
{
/* Windows Mobile doesn't have environment API: */
/* GetEnvironmentStrings, GetEnvironmentVariable, getenv. */
/* */
/* FIXME!!! How to set debug mode? */
/* const char* ft2_debug = getenv( "FT2_DEBUG" ); */
const char* ft2_debug = 0;
if ( ft2_debug )
{
const char* p = ft2_debug;
const char* q;
for ( ; *p; p++ )
{
/* skip leading whitespace and separators */
if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' )
continue;
/* read toggle name, followed by ':' */
q = p;
while ( *p && *p != ':' )
p++;
if ( *p == ':' && p > q )
{
int n, i, len = p - q;
int level = -1, found = -1;
for ( n = 0; n < trace_count; n++ )
{
const char* toggle = ft_trace_toggles[n];
for ( i = 0; i < len; i++ )
{
if ( toggle[i] != q[i] )
break;
}
if ( i == len && toggle[i] == 0 )
{
found = n;
break;
}
}
/* read level */
p++;
if ( *p )
{
level = *p++ - '0';
if ( level < 0 || level > 7 )
level = -1;
}
if ( found >= 0 && level >= 0 )
{
if ( found == trace_any )
{
/* special case for "any" */
for ( n = 0; n < trace_count; n++ )
ft_trace_levels[n] = level;
}
else
ft_trace_levels[found] = level;
}
}
}
}
}
#else /* !FT_DEBUG_LEVEL_TRACE */
FT_BASE_DEF( void )
ft_debug_init( void )
{
/* nothing */
}
#endif /* !FT_DEBUG_LEVEL_TRACE */
#endif /* FT_DEBUG_LEVEL_ERROR */
/* END */
|
