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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
/****************************************************************************}
{* *}
{* The FreeType project - a Free and Portable Quality TrueType Renderer. *}
{* *}
{* Copyright 1996-2001 by *}
{* D. Turner, R.Wilhelm, and W. Lemberg *}
{* *}
{* fdebug : A very simple TrueType bytecode debugger. *}
{* *}
{* NOTE : You must compile the interpreter with the DEBUG_INTERPRETER *}
{* macro defined in order to link this program! *}
{* *}
{****************************************************************************/
#include <math.h> /* libc ANSI */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "freetype.h"
#include "tttypes.h"
#include "ttdebug.h"
#include "ttobjs.h"
#ifdef UNIX
#ifndef HAVE_POSIX_TERMIOS
#include <sys/ioctl.h>
#include <termio.h>
#else
#ifndef HAVE_TCGETATTR
#define HAVE_TCGETATTR
#endif /* HAVE_TCGETATTR */
#ifndef HAVE_TCSETATTR
#define HAVE_TCSETATTR
#endif /* HAVE_TCSETATTR */
#include <termios.h>
#endif /* HAVE_POSIX_TERMIOS */
#endif
/* MAGIC: This variable is only defined in ttinterp.c if the */
/* macro DEBUG_INTERPRETER is set. It specifies the code */
/* range to debug. By default, it is TT_CodeRange_Glyph. */
/* */
extern
int debug_coderange;
#define Font_Buff_Size 256000 /* this buffer holds all */
/* font specific data. */
TT_Engine engine;
TT_Face face;
TT_Instance instance;
TT_Glyph glyph;
TT_Error error;
TT_Face_Properties properties;
int num_glyphs;
int ptsize;
Int Fail;
Int Num;
int mode = 2;
unsigned char autorun;
/*********************************************************************
*
* Usage : print usage message
*
*********************************************************************/
static
void Usage( const char* execname )
{
TT_Message( "fdebug: a simple TrueType bytecode debugger - part of the FreeType project\n" );
TT_Message( "--------------------------------------------------------------------------\n\n");
TT_Message( "Usage: %s glyphnum ppem fontname[.ttf]\n", execname );
TT_Message( " or %s --cvt ppem fontname[.ttf]\n", execname );
TT_Message( " or %s --font fontname[.ttf]\n\n", execname );
exit( EXIT_FAILURE );
}
/*********************************************************************
*
* Init_Keyboard : set the input file descriptor to char-by-char
* mode on Unix..
*
*********************************************************************/
#ifdef UNIX
struct termios old_termio;
static
void Init_Keyboard( void )
{
struct termios termio;
#ifndef HAVE_TCGETATTR
ioctl( 0, TCGETS, &old_termio );
#else
tcgetattr( 0, &old_termio );
#endif
termio = old_termio;
termio.c_lflag &= ~(ICANON+ECHO+ECHOE+ECHOK+ECHONL+ECHOKE);
#ifndef HAVE_TCSETATTR
ioctl( 0, TCSETS, &termio );
#else
tcsetattr( 0, TCSANOW, &termio );
#endif
}
static
void Reset_Keyboard( voi )
{
#ifndef HAVE_TCSETATTR
ioctl( 0, TCSETS, &old_termio );
#else
tcsetattr( 0, TCSANOW, &old_termio );
#endif
}
#else
static
void Init_Keyboard( void )
{
}
static
void Reset_Keyboard( voi )
{
}
#endif
static
void Print_Banner( void )
{
TT_Message( "fdebug - a simple TrueType bytecode debugger for FreeType\n" );
TT_Message( "------------------------------------------------------------\n" );
TT_Message( "type '?' for help - copyright 1996-2000 the FreeType Project\n\n" );
}
static
void Error( const char* message,
const char* filename )
{
static char tempstr[256];
sprintf( tempstr, "ERROR (%s): %s\n", filename, message );
TT_Message( tempstr );
sprintf( tempstr, " code = 0x%04lx\n", error );
TT_Message( tempstr );
Reset_Keyboard();
exit( EXIT_FAILURE );
}
static
void Init_Face( const char* filename )
{
error = TT_Init_FreeType(&engine);
if (error) Error( "could not initialise FreeType", filename );
/* open face object */
error = TT_Open_Face( engine, filename, &face );
if (error) Error( "could not find or open file", filename );
/* get properties */
TT_Get_Face_Properties( face, &properties );
num_glyphs = properties.num_Glyphs;
/* create instance */
error = TT_New_Instance( face, &instance );
if (error) Error( "could not create instance", filename );
error = TT_New_Glyph( face, &glyph );
if (error) Error( "could not create glyph container", filename );
TT_Set_Instance_Resolutions( instance, 96, 96 );
error = TT_Set_Instance_CharSize( instance, ptsize << 6 );
if (error) Error( "could not set text size", filename );
}
int main( int argc, char** argv )
{
int i;
char filename[128+4];
char* execname;
execname = argv[0];
if ( argc < 2 )
Usage( execname );
if ( strcmp( argv[1], "--font" ) == 0 )
{
debug_coderange = TT_CodeRange_Font;
mode = 0;
argc--;
argv++;
}
else if ( strcmp( argv[1], "--cvt" ) == 0 )
{
debug_coderange = TT_CodeRange_Cvt;
argv++;
argc--;
mode = 1;
}
else if ( sscanf( argv[1], "%d", &Num ) == 1 )
{
mode = 2;
argv++;
argc--;
}
else
Usage( execname );
/* read the point size for cvt and glyph modes */
if (mode > 0)
{
if ( sscanf( argv[1], "%d", &ptsize ) != 1 )
Usage( execname );
argc--;
argv++;
}
if ( argc != 2 )
Usage(execname);
i = strlen( argv[1] );
while ( i > 0 && argv[1][i] != '\\' )
{
if ( argv[1][i] == '.' )
i = 0;
i--;
}
filename[128] = 0;
strncpy( filename, argv[1], 128 );
if ( i >= 0 )
strncpy( filename + strlen(filename), ".ttf", 4 );
Init_Keyboard();
if (mode == 2)
{
Init_Face( filename );
Print_Banner();
error = TT_Load_Glyph( instance, glyph, Num, TTLOAD_DEFAULT );
if (error) Error( "Error during bytecode execution", filename );
}
else
{
Print_Banner();
Init_Face( filename );
}
TT_Close_Face( face );
TT_Done_FreeType(engine);
Reset_Keyboard();
exit( EXIT_SUCCESS ); /* for safety reasons */
return 0; /* never reached */
}
/* End */
|