ref: ed7f62aca5eab9d808daf0879607779bd2670173
dir: /demos/src/ftsbit.c/
/****************************************************************************/
/* */
/* The FreeType project -- a free and portable quality TrueType renderer. */
/* */
/* Copyright 1996-1998 by */
/* D. Turner, R.Wilhelm, and W. Lemberg */
/* */
/* ftsbit: a _very_ simple embedded bitmap dumper for FreeType 1.x. */
/* */
/* NOTE: This is just a test program that is used to show off and */
/* debug the current engine. */
/* */
/****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "freetype.h"
#ifdef HAVE_LIBINTL_H
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#include <libintl.h>
#include "ftxerr18.h"
#else /* !HAVE_LIBINTL */
#define gettext( x ) ( x )
/* We ignore error message strings with this function */
static char* TT_ErrToString18( FT_Error error )
{
static char temp[32];
sprintf( temp, "0x%04lx", error );
return temp;
}
#endif /* !HAVE_LIBINTL */
FT_Error error;
FT_Library engine;
FT_Resource resource;
FT_Face face;
FT_Size instance;
FT_GlyphSlot glyph;
unsigned int num_glyphs;
int ptsize;
int Fail;
int Num;
static void Usage( char* name )
{
printf( gettext( "ftsbit: simple TrueType 'sbit' dumper -- part of the FreeType project\n" ) );
printf( "---------------------------------------------------------------------\n" );
printf( "\n" );
printf( gettext( "Usage: %s ppem fontname (index)* (index1-index2)*\n\n" ), name );
printf( gettext( " or %s -a ppem fontname (dumps all glyphs)\n" ), name );
printf( "\n" );
exit( EXIT_FAILURE );
}
static
void dump_bitmap( FT_GlyphSlot glyph, int glyph_index )
{
/* Dump the resulting bitmap */
{
int y;
unsigned char* line = (unsigned char*)glyph->bitmap.buffer;
printf( "glyph index %d = %dx%d pixels, ",
glyph_index, glyph->bitmap.rows, glyph->bitmap.width );
printf( "advance = %d, minBearing = [%d,%d]\n",
glyph->metrics.horiAdvance >> 6,
glyph->metrics.horiBearingX >> 6,
glyph->metrics.horiBearingY >> 6 );
for ( y = 0; y < glyph->bitmap.rows; y++, line += glyph->bitmap.cols )
{
unsigned char* ptr = line;
int x;
unsigned char mask = 0x80;
for ( x = 0; x < glyph->bitmap.width; x++ )
{
printf( "%c", (ptr[0] & mask) ? '*' : '.' );
mask >>= 1;
if (mask == 0)
{
mask = 0x80;
ptr++;
}
}
printf( "\n" );
}
}
}
static
void dump_range( FT_GlyphSlot glyph,
int first_glyph,
int last_glyph )
{
int i;
for ( i = first_glyph; i <= last_glyph; i++ )
{
error = FT_Load_Glyph( glyph,
instance,
(unsigned short)i,
FT_LOAD_NO_OUTLINE,
0 );
if (error)
{
printf( " no bitmap for glyph %d\n", i );
printf( gettext( "FreeType error message: %s\n" ),
TT_ErrToString18( error ) );
continue;
}
dump_bitmap(glyph,i);
}
}
int main( int argc, char** argv )
{
int i;
char filename[128 + 4];
char alt_filename[128 + 4];
char* execname;
char* fname;
int dump_all = 0;
#ifdef HAVE_LIBINTL_H
setlocale( LC_ALL, "" );
bindtextdomain( "freetype", LOCALEDIR );
textdomain( "freetype" );
#endif
execname = argv[0];
if ( argc < 3 )
Usage( execname );
if ( argv[1][0] == '-' &&
argv[1][1] == 'a' )
{
argv++;
argc--;
dump_all = 1;
}
if ( sscanf( argv[1], "%d", &ptsize ) != 1 )
Usage( execname );
/* Initialize engine */
if ( (error = FT_Init_FreeType( &engine )) )
{
fprintf( stderr, gettext( "Error while initializing engine\n" ) );
goto Failure;
}
/* Now check all files */
fname = argv[2];
i = strlen( fname );
while ( i > 0 && fname[i] != '\\' && fname[i] != '/' )
{
if ( fname[i] == '.' )
i = 0;
i--;
}
filename[128] = '\0';
alt_filename[128] = '\0';
strncpy( filename, fname, 128 );
strncpy( alt_filename, fname, 128 );
if ( i >= 0 )
{
strncpy( filename + strlen( filename ), ".ttf", 4 );
strncpy( alt_filename + strlen( alt_filename ), ".ttc", 4 );
}
/* Load face */
error = FT_New_Resource( engine, filename, &resource );
if (error)
{
strcpy( filename, alt_filename );
error = FT_New_Resource( engine, alt_filename, &resource );
}
i = strlen( filename );
fname = filename;
while ( i >= 0 )
if ( filename[i] == '/' || filename[i] == '\\' )
{
fname = filename + i + 1;
i = -1;
}
else
i--;
if ( error )
{
printf( gettext( "Could not find or open file.\n" ) );
goto Failure;
}
error = FT_New_Face( resource, 0, &face );
if (error)
{
printf( gettext( "Could not create face object.\n " ) );
goto Failure;
}
/* get face properties */
num_glyphs = face->num_glyphs;
/* create instance */
error = FT_New_Size( face, &instance );
if ( error )
{
printf( gettext( "Could not create instance.\n" ) );
goto Failure;
}
error = FT_Set_Pixel_Sizes( instance, ptsize, ptsize );
if (error)
{
printf( gettext( "Could not set character size.\n" ) );
goto Failure;
}
glyph = face->slot;
if (dump_all)
dump_range( glyph, 0, num_glyphs-1 );
else
{
for ( i = 3; i < argc; i++ )
{
/* check for range in argument string */
int range_check = 0;
char* base = argv[i];
char* cur = base;
int first, last;
while (*cur)
{
if (*cur == '-')
{
range_check = 1;
break;
}
cur++;
}
if (range_check)
{
if ( sscanf( argv[i], "%d-%d", &first, &last ) != 2 )
Usage( execname );
dump_range( glyph, first, last );
}
else
{
if ( sscanf( argv[i], "%d", &first ) != 1 )
Usage( execname );
dump_range( glyph, first, first );
}
}
}
FT_Done_FreeType( engine );
exit( EXIT_SUCCESS ); /* for safety reasons */
return 0; /* never reached */
Failure:
printf( gettext( "FreeType error message: %s\n" ),
TT_ErrToString18( error ) );
exit( EXIT_FAILURE );
}
/* End */