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a new simple program to display composite glyphs in a given

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font. Used during auto-hinting research
This commit is contained in:
David Turner 2000-03-28 11:14:24 +00:00
parent b46a2d8a74
commit 6b0149b826
1 changed files with 193 additions and 0 deletions
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demos/src/compos.c Normal file
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/****************************************************************************/
/* */
/* The FreeType project -- a free and portable quality TrueType renderer. */
/* */
/* Copyright 1996-1998 by */
/* D. Turner, R.Wilhelm, and W. Lemberg */
/* */
/* compos: this is a very simple program used to test the flag */
/* FT_LOAD_NO_RECURSE */
/* */
/* NOTE: This is just a test program that is used to show off and */
/* debug the current engine. */
/* */
/****************************************************************************/
#include "freetype.h"
#include "ftobjs.h"
#include "ftdriver.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define gettext( x ) ( x )
FT_Error error;
FT_Library library;
FT_Face face;
FT_Size size;
FT_GlyphSlot slot;
unsigned int num_glyphs;
int ptsize;
int Fail;
int Num;
static void Usage( char* name )
{
printf( "compos: test FT_LOAD_NO_RECURSE load flag - www.freetype.org\n" );
printf( "------------------------------------------------------------\n" );
printf( "\n" );
printf( "Usage: %s fontname[.ttf|.ttc] [fontname2..]\n", name );
printf( "\n" );
exit( 1 );
}
static void Panic( const char* message )
{
fprintf( stderr, "%s\n error code = 0x%04x\n", message, error );
exit(1);
}
int main( int argc, char** argv )
{
int i, file_index;
unsigned int id;
char filename[128 + 4];
char alt_filename[128 + 4];
char* execname;
char* fname;
execname = argv[0];
if ( argc < 2 )
Usage( execname );
error = FT_Init_FreeType( &library );
if (error) Panic( "Could not create library object" );
/* Now check all files */
for ( file_index = 1; file_index < argc; file_index++ )
{
fname = argv[file_index];
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 );
#ifndef macintosh
if ( i >= 0 )
{
strncpy( filename + strlen( filename ), ".ttf", 4 );
strncpy( alt_filename + strlen( alt_filename ), ".ttc", 4 );
}
#endif
i = strlen( filename );
fname = filename;
while ( i >= 0 )
#ifndef macintosh
if ( filename[i] == '/' || filename[i] == '\\' )
#else
if ( filename[i] == ':' )
#endif
{
fname = filename + i + 1;
i = -1;
}
else
i--;
printf( "%s:\n", fname );
/* Load face */
error = FT_New_Face( library, filename, 0, &face );
if (error)
{
if (error == FT_Err_Invalid_File_Format)
printf( "unknown format\n" );
else
printf( "could not find/open file (error: %d)\n", error );
continue;
}
num_glyphs = face->num_glyphs;
slot = face->glyph;
Fail = 0;
{
for ( id = 0; id < num_glyphs; id++ )
{
int has_scale;
error = FT_Load_Glyph( face, id, FT_LOAD_NO_RECURSE );
if (!error && slot->format == ft_glyph_format_composite)
{
int n;
FT_SubGlyph* subg = slot->subglyphs;
printf( "%4d:", id );
for ( n = 0; n < slot->num_subglyphs; n++, subg++ )
{
has_scale = subg->flags & (
FT_SUBGLYPH_FLAG_SCALE |
FT_SUBGLYPH_FLAG_XY_SCALE |
FT_SUBGLYPH_FLAG_2X2 );
printf( " [%d%c",
subg->index,
subg->flags & FT_SUBGLYPH_FLAG_USE_MY_METRICS ? '*' : ' ' );
if ( subg->arg1|subg->arg2 )
{
if ( subg->flags & FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES )
printf( "(%d,%d)", subg->arg1, subg->arg2 );
else
printf( "<%d,%d>", subg->arg1, subg->arg2 );
}
if (has_scale)
printf( "-{%0.3f %0.3f %0.3f %0.3f}",
subg->transform.xx/65536.0,
subg->transform.xy/65536.0,
subg->transform.yx/65536.0,
subg->transform.yy/65536.0 );
printf( "]" );
}
printf( " adv=%ld lsb=%ld\n",
slot->metrics.horiAdvance,
slot->metrics.horiBearingX );
}
}
}
FT_Done_Face( face );
}
FT_Done_FreeType(library);
exit( 0 ); /* for safety reasons */
return 0; /* never reached */
}
/* End */