forked from minhngoc25a/freetype2
355 lines
7.3 KiB
C
355 lines
7.3 KiB
C
/****************************************************************************
|
|
*
|
|
* ftdebug.c
|
|
*
|
|
* Debugging and logging component for WinCE (body).
|
|
*
|
|
* Copyright (C) 1996-2019 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 FT_FREETYPE_H
|
|
#include FT_INTERNAL_DEBUG_H
|
|
|
|
|
|
#ifdef FT_DEBUG_LEVEL_ERROR
|
|
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <windows.h>
|
|
|
|
|
|
static 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 );
|
|
}
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
FT_BASE_DEF( void )
|
|
FT_Message( const char* fmt,
|
|
... )
|
|
{
|
|
static char buf[8192];
|
|
va_list ap;
|
|
|
|
|
|
va_start( ap, fmt );
|
|
vfprintf( stderr, fmt, ap );
|
|
/* send the string to the debugger as well */
|
|
vsprintf( buf, fmt, ap );
|
|
OutputDebugStringEx( buf );
|
|
va_end( ap );
|
|
}
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
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 );
|
|
}
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
FT_BASE_DEF( int )
|
|
FT_Throw( FT_Error error,
|
|
int line,
|
|
const char* file )
|
|
{
|
|
#if 0
|
|
/* activating the code in this block makes FreeType very chatty */
|
|
fprintf( stderr,
|
|
"%s:%d: error 0x%02x: %s\n",
|
|
file,
|
|
line,
|
|
error,
|
|
FT_Error_String( error ) );
|
|
#else
|
|
FT_UNUSED( error );
|
|
FT_UNUSED( line );
|
|
FT_UNUSED( file );
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* FT_DEBUG_LEVEL_ERROR */
|
|
|
|
|
|
#ifdef FT_DEBUG_LEVEL_TRACE
|
|
|
|
/* array of trace levels, initialized to 0; */
|
|
/* this gets adjusted at run-time */
|
|
static int ft_trace_levels_enabled[trace_count];
|
|
|
|
/* array of trace levels, always initialized to 0 */
|
|
static int ft_trace_levels_disabled[trace_count];
|
|
|
|
/* a pointer to either `ft_trace_levels_enabled' */
|
|
/* or `ft_trace_levels_disabled' */
|
|
int* ft_trace_levels;
|
|
|
|
/* 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
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
FT_BASE_DEF( FT_Int )
|
|
FT_Trace_Get_Count( void )
|
|
{
|
|
return trace_count;
|
|
}
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
FT_BASE_DEF( const char * )
|
|
FT_Trace_Get_Name( FT_Int idx )
|
|
{
|
|
int max = FT_Trace_Get_Count();
|
|
|
|
|
|
if ( idx < max )
|
|
return ft_trace_toggles[idx];
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
FT_BASE_DEF( void )
|
|
FT_Trace_Disable( void )
|
|
{
|
|
ft_trace_levels = ft_trace_levels_disabled;
|
|
}
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
FT_BASE_DEF( void )
|
|
FT_Trace_Enable( void )
|
|
{
|
|
ft_trace_levels = ft_trace_levels_enabled;
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
*
|
|
* 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:
|
|
*
|
|
* export FT2_DEBUG="any:3 memory:7 stream:5"
|
|
*
|
|
* This requests that all levels be set to 3, except the trace level for
|
|
* the memory and stream components which are set to 7 and 5,
|
|
* respectively.
|
|
*
|
|
* See the file `include/freetype/internal/fttrace.h' for details of
|
|
* the available toggle names.
|
|
*
|
|
* The level must be between 0 and 7; 0 means quiet (except for serious
|
|
* runtime errors), and 7 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 )
|
|
break;
|
|
|
|
if ( *p == ':' && p > q )
|
|
{
|
|
FT_Int n, i, len = (FT_Int)( p - q );
|
|
FT_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_enabled[n] = level;
|
|
}
|
|
else
|
|
ft_trace_levels_enabled[found] = level;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ft_trace_levels = ft_trace_levels_enabled;
|
|
}
|
|
|
|
|
|
#else /* !FT_DEBUG_LEVEL_TRACE */
|
|
|
|
|
|
FT_BASE_DEF( void )
|
|
ft_debug_init( void )
|
|
{
|
|
/* nothing */
|
|
}
|
|
|
|
|
|
FT_BASE_DEF( FT_Int )
|
|
FT_Trace_Get_Count( void )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
FT_BASE_DEF( const char * )
|
|
FT_Trace_Get_Name( FT_Int idx )
|
|
{
|
|
FT_UNUSED( idx );
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
FT_BASE_DEF( void )
|
|
FT_Trace_Disable( void )
|
|
{
|
|
/* nothing */
|
|
}
|
|
|
|
|
|
/* documentation is in ftdebug.h */
|
|
|
|
FT_BASE_DEF( void )
|
|
FT_Trace_Enable( void )
|
|
{
|
|
/* nothing */
|
|
}
|
|
|
|
|
|
#endif /* !FT_DEBUG_LEVEL_TRACE */
|
|
|
|
|
|
/* END */
|