/****************************************************************************/ /* */ /* The FreeType project -- a free and portable quality TrueType renderer. */ /* */ /* Copyright 1999 by */ /* Yamano'uchi H. and W. Lemberg */ /* */ /* ftmetric: dump metrics and a glyph. */ /* */ /* NOTE: This is just a test program that is used to debug */ /* the current engine. */ /* */ /****************************************************************************/ #include #include #include #include "common.h" #include "freetype.h" #include "ftxsbit.h" /* * Basically, an external program using FreeType shouldn't depend on an * internal file of the FreeType library, especially not on ft_conf.h -- but * to avoid another configure script which tests for the existence of the * i18n stuff we include ft_conf.h here since we can be sure that our test * programs use the same configuration options as the library itself. */ #include "ft_conf.h" #ifdef HAVE_LIBINTL_H #ifdef HAVE_LOCALE_H #include #endif #include #include "ftxerr18.h" #else /* !HAVE_LIBINTL */ #define gettext( x ) ( x ) /* We ignore error message strings with this function */ static char* TT_ErrToString18( TT_Error error ) { static char temp[32]; sprintf( temp, "0x%04lx", error ); return temp; } #endif /* !HAVE_LIBINTL */ static void usage( char* execname ) { char* gt; fprintf( stderr, "\n" ); gt = gettext( "ftmetric: Simple TTF metrics/glyph dumper -- part of the FreeType project" ); fprintf( stderr, "%s\n", gt ); separator_line( stderr, strlen( gt ) ); fprintf( stderr, gettext( "Usage: %s [options below] point fontname[.ttf|.ttc]\n" "\n" " -B show sbit's metrics (default: none)\n" " -c C use C'th font index of TrueType collection (default: 0)\n" " -i index glyph index (default: 0)\n" " -r R use resolution R dpi (default: 72)\n" "\n" ), execname ); exit( EXIT_FAILURE ); } static void Show_Metrics( TT_Big_Glyph_Metrics metrics, char* title ) { int show_advance = 1; printf("%s: xMin %d, xMax %d, yMin %d, yMax %d", title, (int)(metrics.bbox.xMin / 64), (int)(metrics.bbox.xMax / 64), (int)(metrics.bbox.yMin / 64), (int)(metrics.bbox.yMax / 64)); if ( show_advance ) printf( ", advance width %d", (int)(metrics.horiAdvance / 64) ); printf("\n"); return; } int main( int argc, char** argv ) { int i, orig_ptsize, file; char filename[128 + 4]; char alt_filename[128 + 4]; char* execname; int option; int ptsize; int num_Faces = 0; int glyph_index = 0; int load_flags = TTLOAD_DEFAULT; int force_sbit = 0; TT_Engine engine; TT_Face face; TT_Instance instance; TT_Glyph glyph; TT_Raster_Map map; TT_Big_Glyph_Metrics metrics; TT_Face_Properties properties; TT_Instance_Metrics imetrics; TT_EBLC eblc; TT_SBit_Image* bitmap = NULL; TT_Error error; int res = 72; #ifdef HAVE_LIBINTL_H setlocale( LC_ALL, "" ); bindtextdomain( "freetype", LOCALEDIR ); textdomain( "freetype" ); #endif execname = ft_basename( argv[0] ); while ( 1 ) { option = ft_getopt( argc, argv, "c:r:i:B" ); if ( option == -1 ) break; switch ( option ) { case 'r': res = atoi( ft_optarg ); if ( res < 1 ) usage( execname ); break; case 'c': num_Faces = atoi( ft_optarg ); if ( num_Faces < 0 ) usage( execname ); break; case 'i': glyph_index = atoi( ft_optarg ); if ( glyph_index < 0 ) usage( execname ); break; case 'B': force_sbit = 1; break; default: usage( execname ); break; } } argc -= ft_optind; argv += ft_optind; if ( argc <= 1 ) usage( execname ); if ( sscanf( argv[0], "%d", &orig_ptsize ) != 1 ) orig_ptsize = 64; file = 1; ptsize = orig_ptsize; i = strlen( argv[file] ); while ( i > 0 && argv[file][i] != '\\' && argv[file][i] != '/' ) { if ( argv[file][i] == '.' ) i = 0; i--; } filename[128] = '\0'; alt_filename[128] = '\0'; strncpy( filename, argv[file], 128 ); strncpy( alt_filename, argv[file], 128 ); if ( i >= 0 ) { strncpy( filename + strlen( filename ), ".ttf", 4 ); strncpy( alt_filename + strlen( alt_filename ), ".ttc", 4 ); } /* Initialize engine */ error = TT_Init_FreeType( &engine ); if ( error ) { fprintf( stderr, gettext( "Error while initializing engine.\n" ) ); goto Failure; } error = TT_Init_SBit_Extension( engine ); if ( error ) { fprintf( stderr, gettext( "Error while initializing embedded bitmap extension.\n" ) ); goto Failure; } /* Load face */ error = TT_Open_Face( engine, filename, &face ); if ( error == TT_Err_Could_Not_Open_File ) { strcpy( filename, alt_filename ); error = TT_Open_Face( engine, alt_filename, &face ); } if ( error == TT_Err_Could_Not_Open_File ) Panic( gettext( "Could not find or open %s.\n" ), filename ); if ( error ) { fprintf( stderr, gettext( "Error while opening %s.\n" ), filename ); goto Failure; } TT_Get_Face_Properties( face, &properties ); printf( gettext( "There are %d fonts in this collection.\n" ), (int)(properties.num_Faces) ); if ( num_Faces >= properties.num_Faces ) Panic( gettext( "There is no collection with index %d in this font file.\n" ), num_Faces ); TT_Close_Face( face ); error = TT_Open_Collection( engine, filename, num_Faces, &face ); /* get face properties and eblc */ TT_Get_Face_Properties( face, &properties ); if ( force_sbit ) { error = TT_Get_Face_Bitmaps( face, &eblc ); if ( error == TT_Err_Table_Missing ) Panic( gettext( "There is no embedded bitmap data in the font.\n" ) ); if ( error ) { fprintf( stderr, gettext( "Error while retrieving embedded bitmaps table.\n" ) ); goto Failure; } } /* create glyph */ error = TT_New_Glyph( face, &glyph ); if ( error ) { fprintf( stderr, gettext( "Could not create glyph container.\n" ) ); goto Failure; } /* create instance */ error = TT_New_Instance( face, &instance ); if ( error ) { fprintf( stderr, gettext( "Could not create instance.\n" ) ); goto Failure; } error = TT_Set_Instance_Resolutions( instance, res, res ); if ( error ) { fprintf( stderr, gettext( "Could not set device resolutions.\n" ) ); goto Failure; } error = TT_Set_Instance_CharSize( instance, ptsize*64 ); if ( error ) { fprintf( stderr, gettext( "Could not reset instance.\n" ) ); goto Failure; } TT_Get_Instance_Metrics( instance, &imetrics ); printf( gettext( "Instance metrics: ppemX %d, ppemY %d\n" ), imetrics.x_ppem, imetrics.y_ppem ); if ( force_sbit ) { error = TT_New_SBit_Image( &bitmap ); if ( error ) { fprintf( stderr, gettext( "Could not allocate glyph bitmap container.\n" ) ); goto Failure; } error = TT_Load_Glyph_Bitmap( face, instance, glyph_index, bitmap ); if ( error ) { fprintf( stderr, gettext( "Can't load bitmap for glyph %d.\n" ), glyph_index ); goto Failure; } Show_Metrics( bitmap->metrics, "SBit's metrics" ); printf( "SBit glyph:\n" ); Show_Single_Glyph( &bitmap->map ); } else { TT_Load_Glyph( instance, glyph, glyph_index, load_flags ); TT_Get_Glyph_Big_Metrics( glyph, &metrics ); map.width = ( metrics.bbox.xMax - metrics.bbox.xMin ) / 64; map.rows = ( metrics.bbox.yMax - metrics.bbox.yMin ) / 64; map.cols = ( map.width + 7 ) / 8; map.size = map.cols * map.rows; map.bitmap = malloc( map.size ); map.flow = TT_Flow_Down; memset( map.bitmap, 0, map.size ); error = TT_Get_Glyph_Bitmap( glyph, &map, -metrics.bbox.xMin, -metrics.bbox.yMin ); Show_Metrics( metrics, gettext( "Outline's metrics" ) ); printf( gettext( "Outline glyph\n" ) ); Show_Single_Glyph( &map ); } free( map.bitmap ); if ( bitmap ) TT_Done_SBit_Image( bitmap ); TT_Done_Instance( instance ); TT_Done_Glyph( glyph ); TT_Done_FreeType( engine ); exit( EXIT_SUCCESS ); /* for safety reasons */ return 0; /* never reached */ Failure: fprintf( stderr, " " ); fprintf( stderr, gettext( "FreeType error message: %s\n" ), TT_ErrToString18( error ) ); exit( EXIT_FAILURE ); return 0; /* never reached */ } /* End */