pfr_face_done( FT_Face pfrface ) /* PFR_Face */
{
PFR_Face face = (PFR_Face)pfrface;
FT_Memory memory;
if ( !face )
return;
memory = pfrface->driver->root.memory;
/* we don't want dangling pointers */
pfrface->family_name = NULL;
pfrface->style_name = NULL;
/* finalize the physical font record */
pfr_phy_font_done( &face->phy_font, FT_FACE_MEMORY( face ) );
/* no need to finalize the logical font or the header */
FT_FREE( pfrface->available_sizes );
}
cff_cmap_unicode_init( PS_Unicodes unicodes )
{
TT_Face face = (TT_Face)FT_CMAP_FACE( unicodes );
FT_Memory memory = FT_FACE_MEMORY( face );
CFF_Font cff = (CFF_Font)face->extra.data;
CFF_Charset charset = &cff->charset;
FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames;
/* can't build Unicode map for CID-keyed font */
/* because we don't know glyph names. */
if ( !charset->sids )
return FT_THROW( No_Unicode_Glyph_Name );
return psnames->unicodes_init( memory,
unicodes,
cff->num_glyphs,
(PS_GetGlyphNameFunc)&cff_sid_to_glyph_name,
(PS_FreeGlyphNameFunc)NULL,
(FT_Pointer)face );
}
static FT_Error
cff_get_glyph_name( CFF_Face face,
FT_UInt glyph_index,
FT_Pointer buffer,
FT_UInt buffer_max )
{
CFF_Font font = (CFF_Font)face->extra.data;
FT_Memory memory = FT_FACE_MEMORY( face );
FT_String* gname;
FT_UShort sid;
FT_Service_PsCMaps psnames;
FT_Error error;
FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS );
if ( !psnames )
{
FT_ERROR(( "cff_get_glyph_name:" ));
FT_ERROR(( " cannot get glyph name from CFF & CEF fonts\n" ));
FT_ERROR(( " " ));
FT_ERROR(( " without the `PSNames' module\n" ));
error = CFF_Err_Unknown_File_Format;
goto Exit;
}
/* first, locate the sid in the charset table */
sid = font->charset.sids[glyph_index];
/* now, lookup the name itself */
gname = cff_index_get_sid_string( &font->string_index, sid, psnames );
if ( gname )
FT_STRCPYN( buffer, gname, buffer_max );
FT_FREE( gname );
error = CFF_Err_Ok;
Exit:
return error;
}
static FT_Error
otv_load_table( FT_Face face,
FT_Tag tag,
FT_Byte* volatile* table,
FT_ULong* table_len )
{
FT_Error error;
FT_Memory memory = FT_FACE_MEMORY( face );
error = FT_Load_Sfnt_Table( face, tag, 0, NULL, table_len );
if ( error == OTV_Err_Table_Missing )
return OTV_Err_Ok;
if ( error )
goto Exit;
if ( FT_ALLOC( *table, *table_len ) )
goto Exit;
error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len );
Exit:
return error;
}
PCF_Face_Done( PCF_Face face )
{
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( face->encodings );
FT_FREE( face->metrics );
/* free properties */
{
PCF_Property prop = face->properties;
FT_Int i;
for ( i = 0; i < face->nprops; i++ )
{
prop = &face->properties[i];
FT_FREE( prop->name );
if ( prop->isString )
FT_FREE( prop->value );
}
FT_FREE( face->properties );
}
FT_FREE( face->toc.tables );
FT_FREE( face->root.family_name );
FT_FREE( face->root.available_sizes );
FT_FREE( face->charset_encoding );
FT_FREE( face->charset_registry );
FT_TRACE4(( "DONE_FACE!!!\n" ));
return PCF_Err_Ok;
}
static FT_Error
otv_validate( FT_Face volatile face,
FT_UInt ot_flags,
FT_Bytes *ot_base,
FT_Bytes *ot_gdef,
FT_Bytes *ot_gpos,
FT_Bytes *ot_gsub,
FT_Bytes *ot_jstf )
{
FT_Error error = OTV_Err_Ok;
FT_Byte* volatile base;
FT_Byte* volatile gdef;
FT_Byte* volatile gpos;
FT_Byte* volatile gsub;
FT_Byte* volatile jstf;
FT_Byte* volatile math;
FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf;
FT_ULong len_math;
FT_UInt num_glyphs = (FT_UInt)face->num_glyphs;
FT_ValidatorRec volatile valid;
base = gdef = gpos = gsub = jstf = math = NULL;
len_base = len_gdef = len_gpos = len_gsub = len_jstf = len_math = 0;
/*
* XXX: OpenType tables cannot handle 32-bit glyph index,
* although broken TrueType can have 32-bit glyph index.
*/
if ( face->num_glyphs > 0xFFFFL )
{
FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08x) ",
face->num_glyphs ));
FT_TRACE1(( "are not handled by OpenType tables\n" ));
num_glyphs = 0xFFFF;
}
/* load tables */
if ( ot_flags & FT_VALIDATE_BASE )
{
error = otv_load_table( face, TTAG_BASE, &base, &len_base );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GDEF )
{
error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GPOS )
{
error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GSUB )
{
error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_JSTF )
{
error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_MATH )
{
error = otv_load_table( face, TTAG_MATH, &math, &len_math );
if ( error )
goto Exit;
}
/* validate tables */
if ( base )
{
ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_BASE_validate( base, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gpos )
{
ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GPOS_validate( gpos, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gsub )
{
ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GSUB_validate( gsub, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gdef )
{
ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GDEF_validate( gdef, gsub, gpos, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( jstf )
{
ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_JSTF_validate( jstf, gsub, gpos, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( math )
{
ft_validator_init( &valid, math, math + len_math, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_MATH_validate( math, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
*ot_base = (FT_Bytes)base;
*ot_gdef = (FT_Bytes)gdef;
*ot_gpos = (FT_Bytes)gpos;
*ot_gsub = (FT_Bytes)gsub;
*ot_jstf = (FT_Bytes)jstf;
Exit:
if ( error ) {
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( base );
FT_FREE( gdef );
FT_FREE( gpos );
FT_FREE( gsub );
FT_FREE( jstf );
}
{
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( math ); /* Can't return this as API is frozen */
}
return error;
}
static FT_Error
otv_validate( FT_Face face,
FT_UInt ot_flags,
FT_Bytes *ot_base,
FT_Bytes *ot_gdef,
FT_Bytes *ot_gpos,
FT_Bytes *ot_gsub,
FT_Bytes *ot_jstf )
{
FT_Error error = OTV_Err_Ok;
FT_Byte *base, *gdef, *gpos, *gsub, *jstf;
FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf;
FT_ValidatorRec valid;
base = gdef = gpos = gsub = jstf = NULL;
len_base = len_gdef = len_gpos = len_gsub = len_jstf = 0;
/* load tables */
if ( ot_flags & FT_VALIDATE_BASE )
{
error = otv_load_table( face, TTAG_BASE, &base, &len_base );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GDEF )
{
error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GPOS )
{
error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GSUB )
{
error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_JSTF )
{
error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf );
if ( error )
goto Exit;
}
/* validate tables */
if ( base )
{
ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_BASE_validate( base, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gpos )
{
ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_GPOS_validate( gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gsub )
{
ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_GSUB_validate( gsub, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gdef )
{
ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_GDEF_validate( gdef, gsub, gpos, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( jstf )
{
ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_JSTF_validate( jstf, gsub, gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
*ot_base = (FT_Bytes)base;
*ot_gdef = (FT_Bytes)gdef;
*ot_gpos = (FT_Bytes)gpos;
*ot_gsub = (FT_Bytes)gsub;
*ot_jstf = (FT_Bytes)jstf;
Exit:
if ( error ) {
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( base );
FT_FREE( gdef );
FT_FREE( gpos );
FT_FREE( gsub );
FT_FREE( jstf );
}
return error;
}
static FT_Error
otv_validate( FT_Face volatile face,
FT_UInt ot_flags,
FT_Bytes *ot_base,
FT_Bytes *ot_gdef,
FT_Bytes *ot_gpos,
FT_Bytes *ot_gsub,
FT_Bytes *ot_jstf )
{
FT_Error error = OTV_Err_Ok;
FT_Byte* volatile base;
FT_Byte* volatile gdef;
FT_Byte* volatile gpos;
FT_Byte* volatile gsub;
FT_Byte* volatile jstf;
FT_Byte* volatile math;
FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf;
FT_ULong len_math;
FT_ValidatorRec volatile valid;
base = gdef = gpos = gsub = jstf = math = NULL;
len_base = len_gdef = len_gpos = len_gsub = len_jstf = len_math = 0;
/* load tables */
if ( ot_flags & FT_VALIDATE_BASE )
{
error = otv_load_table( face, TTAG_BASE, &base, &len_base );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GDEF )
{
error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GPOS )
{
error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GSUB )
{
error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_JSTF )
{
error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_MATH )
{
error = otv_load_table( face, TTAG_MATH, &math, &len_math );
if ( error )
goto Exit;
}
/* validate tables */
if ( base )
{
ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_BASE_validate( base, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gpos )
{
ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GPOS_validate( gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gsub )
{
ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GSUB_validate( gsub, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gdef )
{
ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GDEF_validate( gdef, gsub, gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( jstf )
{
ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_JSTF_validate( jstf, gsub, gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( math )
{
ft_validator_init( &valid, math, math + len_math, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_MATH_validate( math, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
*ot_base = (FT_Bytes)base;
*ot_gdef = (FT_Bytes)gdef;
*ot_gpos = (FT_Bytes)gpos;
*ot_gsub = (FT_Bytes)gsub;
*ot_jstf = (FT_Bytes)jstf;
Exit:
if ( error ) {
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( base );
FT_FREE( gdef );
FT_FREE( gpos );
FT_FREE( gsub );
FT_FREE( jstf );
}
{
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( math ); /* Can't return this as API is frozen */
}
return error;
}
static FT_Error
FNT_Load_Glyph( FT_GlyphSlot slot,
FNT_Size size,
FT_UInt glyph_index,
FT_Int load_flags )
{
FNT_Font* font = size->font;
FT_Error error = 0;
FT_Byte* p;
FT_Int len;
FT_Bitmap* bitmap = &slot->bitmap;
FT_ULong offset;
FT_Bool new_format;
FT_UNUSED( slot );
FT_UNUSED( load_flags );
if ( !font )
{
error = FNT_Err_Invalid_Argument;
goto Exit;
}
if ( glyph_index > 0 )
glyph_index--;
else
glyph_index = font->header.default_char - font->header.first_char;
new_format = FT_BOOL( font->header.version == 0x300 );
len = new_format ? 6 : 4;
/* jump to glyph entry */
p = font->fnt_frame + 118 + len * glyph_index;
bitmap->width = NEXT_ShortLE(p);
if ( new_format )
offset = NEXT_ULongLE(p);
else
offset = NEXT_UShortLE(p);
/* jump to glyph data */
p = font->fnt_frame + /* font->header.bits_offset */ + offset;
/* allocate and build bitmap */
{
FT_Memory memory = FT_FACE_MEMORY( slot->face );
FT_Int pitch = ( bitmap->width + 7 ) >> 3;
FT_Byte* column;
FT_Byte* write;
bitmap->pitch = pitch;
bitmap->rows = font->header.pixel_height;
bitmap->pixel_mode = ft_pixel_mode_mono;
if ( ALLOC( bitmap->buffer, pitch * bitmap->rows ) )
goto Exit;
column = (FT_Byte*)bitmap->buffer;
for ( ; pitch > 0; pitch--, column++ )
{
FT_Byte* limit = p + bitmap->rows;
for ( write = column; p < limit; p++, write += bitmap->pitch )
write[0] = p[0];
}
}
slot->flags = ft_glyph_own_bitmap;
slot->bitmap_left = 0;
slot->bitmap_top = font->header.ascent;
slot->format = ft_glyph_format_bitmap;
/* now set up metrics */
slot->metrics.horiAdvance = bitmap->width << 6;
slot->metrics.horiBearingX = 0;
slot->metrics.horiBearingY = slot->bitmap_top << 6;
slot->linearHoriAdvance = (FT_Fixed)bitmap->width << 16;
slot->format = ft_glyph_format_bitmap;
Exit:
return error;
}
static FT_Error
FNT_Face_Init( FT_Stream stream,
FNT_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
FT_Error error;
FT_Memory memory = FT_FACE_MEMORY( face );
FT_UNUSED( num_params );
FT_UNUSED( params );
FT_UNUSED( face_index );
/* try to load several fonts from a DLL */
error = fnt_face_get_dll_fonts( face );
if ( error )
{
/* this didn't work, now try to load a single FNT font */
FNT_Font* font;
if ( ALLOC( face->fonts, sizeof ( *face->fonts ) ) )
goto Exit;
face->num_fonts = 1;
font = face->fonts;
font->offset = 0;
font->fnt_size = stream->size;
error = fnt_font_load( font, stream );
if ( error )
goto Fail;
}
/* all right, one or more fonts were loaded; we now need to */
/* fill the root FT_Face fields with relevant information */
{
FT_Face root = FT_FACE( face );
FNT_Font* fonts = face->fonts;
FNT_Font* limit = fonts + face->num_fonts;
FNT_Font* cur;
root->num_faces = 1;
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
FT_FACE_FLAG_HORIZONTAL;
if ( fonts->header.avg_width == fonts->header.max_width )
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
if ( fonts->header.italic )
root->style_flags |= FT_STYLE_FLAG_ITALIC;
if ( fonts->header.weight >= 800 )
root->style_flags |= FT_STYLE_FLAG_BOLD;
/* Setup the `fixed_sizes' array */
if ( ALLOC_ARRAY( root->available_sizes, face->num_fonts,
FT_Bitmap_Size ) )
goto Fail;
root->num_fixed_sizes = face->num_fonts;
{
FT_Bitmap_Size* size = root->available_sizes;
for ( cur = fonts; cur < limit; cur++, size++ )
{
size->width = cur->header.pixel_width;
size->height = cur->header.pixel_height;
}
}
/* Setup the `charmaps' array */
root->charmaps = &face->charmap_handle;
root->num_charmaps = 1;
face->charmap.encoding = ft_encoding_unicode;
face->charmap.platform_id = 3;
face->charmap.encoding_id = 1;
face->charmap.face = root;
face->charmap_handle = &face->charmap;
root->charmap = face->charmap_handle;
/* setup remaining flags */
root->num_glyphs = fonts->header.last_char -
fonts->header.first_char + 1;
root->family_name = (FT_String*)fonts->fnt_frame +
fonts->header.face_name_offset;
root->style_name = (char *)"Regular";
if ( root->style_flags & FT_STYLE_FLAG_BOLD )
{
if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Bold Italic";
else
root->style_name = (char *)"Bold";
}
else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Italic";
}
Fail:
if ( error )
FNT_Face_Done( face );
Exit:
return error;
}
static FT_Error
gxv_validate( FT_Face face,
FT_UInt gx_flags,
FT_Bytes tables[FT_VALIDATE_GX_LENGTH],
FT_UInt table_count )
{
FT_Memory volatile memory = FT_FACE_MEMORY( face );
FT_Error error = FT_Err_Ok;
FT_ValidatorRec volatile valid;
FT_UInt i;
GXV_TABLE_DECL( feat );
GXV_TABLE_DECL( bsln );
GXV_TABLE_DECL( trak );
GXV_TABLE_DECL( just );
GXV_TABLE_DECL( mort );
GXV_TABLE_DECL( morx );
GXV_TABLE_DECL( kern );
GXV_TABLE_DECL( opbd );
GXV_TABLE_DECL( prop );
GXV_TABLE_DECL( lcar );
for ( i = 0; i < table_count; i++ )
tables[i] = 0;
/* load tables */
GXV_TABLE_LOAD( feat );
GXV_TABLE_LOAD( bsln );
GXV_TABLE_LOAD( trak );
GXV_TABLE_LOAD( just );
GXV_TABLE_LOAD( mort );
GXV_TABLE_LOAD( morx );
GXV_TABLE_LOAD( kern );
GXV_TABLE_LOAD( opbd );
GXV_TABLE_LOAD( prop );
GXV_TABLE_LOAD( lcar );
/* validate tables */
GXV_TABLE_VALIDATE( feat );
GXV_TABLE_VALIDATE( bsln );
GXV_TABLE_VALIDATE( trak );
GXV_TABLE_VALIDATE( just );
GXV_TABLE_VALIDATE( mort );
GXV_TABLE_VALIDATE( morx );
GXV_TABLE_VALIDATE( kern );
GXV_TABLE_VALIDATE( opbd );
GXV_TABLE_VALIDATE( prop );
GXV_TABLE_VALIDATE( lcar );
/* Set results */
GXV_TABLE_SET( feat );
GXV_TABLE_SET( mort );
GXV_TABLE_SET( morx );
GXV_TABLE_SET( bsln );
GXV_TABLE_SET( just );
GXV_TABLE_SET( kern );
GXV_TABLE_SET( opbd );
GXV_TABLE_SET( trak );
GXV_TABLE_SET( prop );
GXV_TABLE_SET( lcar );
Exit:
if ( error )
{
FT_FREE( feat );
FT_FREE( bsln );
FT_FREE( trak );
FT_FREE( just );
FT_FREE( mort );
FT_FREE( morx );
FT_FREE( kern );
FT_FREE( opbd );
FT_FREE( prop );
FT_FREE( lcar );
}
return error;
}
static FT_Error
FNT_Load_Glyph( FT_GlyphSlot slot,
FT_Size size,
FT_UInt glyph_index,
FT_Int32 load_flags )
{
FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
FNT_Font font = face->font;
FT_Error error = FNT_Err_Ok;
FT_Byte* p;
FT_Int len;
FT_Bitmap* bitmap = &slot->bitmap;
FT_ULong offset;
FT_Bool new_format;
FT_UNUSED( load_flags );
if ( !face || !font )
{
error = FNT_Err_Invalid_Argument;
goto Exit;
}
if ( glyph_index > 0 )
glyph_index--; /* revert to real index */
else
glyph_index = font->header.default_char; /* the .notdef glyph */
new_format = FT_BOOL( font->header.version == 0x300 );
len = new_format ? 6 : 4;
/* jump to glyph entry */
p = font->fnt_frame + ( new_format ? 146 : 118 ) + len * glyph_index;
bitmap->width = FT_NEXT_SHORT_LE( p );
if ( new_format )
offset = FT_NEXT_ULONG_LE( p );
else
offset = FT_NEXT_USHORT_LE( p );
/* jump to glyph data */
p = font->fnt_frame + /* font->header.bits_offset */ + offset;
/* allocate and build bitmap */
{
FT_Memory memory = FT_FACE_MEMORY( slot->face );
FT_Int pitch = ( bitmap->width + 7 ) >> 3;
FT_Byte* column;
FT_Byte* write;
bitmap->pitch = pitch;
bitmap->rows = font->header.pixel_height;
bitmap->pixel_mode = FT_PIXEL_MODE_MONO;
/* note: since glyphs are stored in columns and not in rows we */
/* can't use ft_glyphslot_set_bitmap */
if ( FT_ALLOC( bitmap->buffer, pitch * bitmap->rows ) )
goto Exit;
column = (FT_Byte*)bitmap->buffer;
for ( ; pitch > 0; pitch--, column++ )
{
FT_Byte* limit = p + bitmap->rows;
for ( write = column; p < limit; p++, write += bitmap->pitch )
*write = *p;
}
}
slot->internal->flags = FT_GLYPH_OWN_BITMAP;
slot->bitmap_left = 0;
slot->bitmap_top = font->header.ascent;
slot->format = FT_GLYPH_FORMAT_BITMAP;
/* now set up metrics */
slot->metrics.horiAdvance = bitmap->width << 6;
slot->metrics.horiBearingX = 0;
slot->metrics.horiBearingY = slot->bitmap_top << 6;
slot->linearHoriAdvance = (FT_Fixed)bitmap->width << 16;
slot->format = FT_GLYPH_FORMAT_BITMAP;
Exit:
return error;
}
static FT_Error
FNT_Face_Init( FT_Stream stream,
FNT_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
FT_Error error;
FT_Memory memory = FT_FACE_MEMORY( face );
FT_UNUSED( num_params );
FT_UNUSED( params );
/* try to load font from a DLL */
error = fnt_face_get_dll_font( face, face_index );
if ( error )
{
/* this didn't work; try to load a single FNT font */
FNT_Font font;
if ( FT_NEW( face->font ) )
goto Exit;
face->root.num_faces = 1;
font = face->font;
font->offset = 0;
font->fnt_size = stream->size;
error = fnt_font_load( font, stream );
if ( error )
goto Fail;
}
/* we now need to fill the root FT_Face fields */
/* with relevant information */
{
FT_Face root = FT_FACE( face );
FNT_Font font = face->font;
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
FT_FACE_FLAG_HORIZONTAL;
if ( font->header.avg_width == font->header.max_width )
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
if ( font->header.italic )
root->style_flags |= FT_STYLE_FLAG_ITALIC;
if ( font->header.weight >= 800 )
root->style_flags |= FT_STYLE_FLAG_BOLD;
/* set up the `fixed_sizes' array */
if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
goto Fail;
root->num_fixed_sizes = 1;
{
FT_Bitmap_Size* bsize = root->available_sizes;
bsize->width = font->header.avg_width;
bsize->height =
font->header.pixel_height + font->header.external_leading;
bsize->size = font->header.nominal_point_size << 6;
bsize->x_ppem =
(FT_Pos)( ( font->header.horizontal_resolution * bsize->size + 36 )
/ 72 );
bsize->y_ppem =
(FT_Pos)( ( font->header.vertical_resolution* bsize->size + 36 )
/ 72 );
}
{
FT_CharMapRec charmap;
charmap.encoding = FT_ENCODING_UNICODE;
charmap.platform_id = 3;
charmap.encoding_id = 1;
charmap.face = root;
error = FT_CMap_New( fnt_cmap_class,
NULL,
&charmap,
NULL );
if ( error )
goto Fail;
/* Select default charmap */
if ( root->num_charmaps )
root->charmap = root->charmaps[0];
}
/* setup remaining flags */
/* reserve one slot for the .notdef glyph at index 0 */
root->num_glyphs = font->header.last_char -
font->header.first_char + 1 + 1;
root->family_name = (FT_String*)font->fnt_frame +
font->header.face_name_offset;
root->style_name = (char *)"Regular";
if ( root->style_flags & FT_STYLE_FLAG_BOLD )
{
if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Bold Italic";
else
root->style_name = (char *)"Bold";
}
else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Italic";
}
Fail:
if ( error )
FNT_Face_Done( face );
Exit:
return error;
}