static FT_Error
tt_size_request( FT_Size size,
FT_Size_Request req )
{
TT_Size ttsize = (TT_Size)size;
FT_Error error = TT_Err_Ok;
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
if ( FT_HAS_FIXED_SIZES( size->face ) )
{
TT_Face ttface = (TT_Face)size->face;
SFNT_Service sfnt = (SFNT_Service) ttface->sfnt;
FT_ULong strike_index;
error = sfnt->set_sbit_strike( ttface, req, &strike_index );
if ( error )
ttsize->strike_index = 0xFFFFFFFFUL;
else
return tt_size_select( size, strike_index );
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
FT_Request_Metrics( size->face, req );
if ( FT_IS_SCALABLE( size->face ) )
error = tt_size_reset( ttsize );
return error;
}
static FT_Error
tt_size_request( FT_Size size,
FT_Size_Request req )
{
TT_Size ttsize = (TT_Size)size;
FT_Error error = FT_Err_Ok;
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
if ( FT_HAS_FIXED_SIZES( size->face ) )
{
TT_Face ttface = (TT_Face)size->face;
SFNT_Service sfnt = (SFNT_Service)ttface->sfnt;
FT_ULong strike_index;
error = sfnt->set_sbit_strike( ttface, req, &strike_index );
if ( error )
ttsize->strike_index = 0xFFFFFFFFUL;
else
return tt_size_select( size, strike_index );
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
FT_Request_Metrics( size->face, req );
if ( FT_IS_SCALABLE( size->face ) )
{
error = tt_size_reset( ttsize );
ttsize->root.metrics = ttsize->metrics;
#ifdef TT_USE_BYTECODE_INTERPRETER
/* for the `MPS' bytecode instruction we need the point size */
{
FT_UInt resolution = ttsize->metrics.x_ppem > ttsize->metrics.y_ppem
? req->horiResolution
: req->vertResolution;
/* if we don't have a resolution value, assume 72dpi */
if ( req->type == FT_SIZE_REQUEST_TYPE_SCALES ||
!resolution )
resolution = 72;
ttsize->point_size = FT_MulDiv( ttsize->ttmetrics.ppem,
64 * 72,
resolution );
}
#endif
}
return error;
}
cff_size_request( FT_Size size,
FT_Size_Request req )
{
CFF_Size cffsize = (CFF_Size)size;
PSH_Globals_Funcs funcs;
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
if ( FT_HAS_FIXED_SIZES( size->face ) )
{
CFF_Face cffface = (CFF_Face)size->face;
SFNT_Service sfnt = (SFNT_Service)cffface->sfnt;
FT_ULong strike_index;
if ( sfnt->set_sbit_strike( cffface, req, &strike_index ) )
cffsize->strike_index = 0xFFFFFFFFUL;
else
return cff_size_select( size, strike_index );
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
FT_Request_Metrics( size->face, req );
funcs = cff_size_get_globals_funcs( cffsize );
if ( funcs )
{
CFF_Face cffface = (CFF_Face)size->face;
CFF_Font font = (CFF_Font)cffface->extra.data;
CFF_Internal internal = (CFF_Internal)size->internal;
FT_ULong top_upm = font->top_font.font_dict.units_per_em;
FT_UInt i;
funcs->set_scale( internal->topfont,
size->metrics.x_scale, size->metrics.y_scale,
0, 0 );
for ( i = font->num_subfonts; i > 0; i-- )
{
CFF_SubFont sub = font->subfonts[i - 1];
FT_ULong sub_upm = sub->font_dict.units_per_em;
FT_Pos x_scale, y_scale;
if ( top_upm != sub_upm )
{
x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm );
y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm );
}
else
{
x_scale = size->metrics.x_scale;
y_scale = size->metrics.y_scale;
}
funcs->set_scale( internal->subfonts[i - 1],
x_scale, y_scale, 0, 0 );
}
}
return FT_Err_Ok;
}
static FT_Error
Reset_SBit_Size( TT_Size size )
{
TT_Face face;
FT_Error error = TT_Err_Ok;
FT_ULong strike_index;
FT_Size_Metrics* metrics;
FT_Size_Metrics* sbit_metrics;
SFNT_Service sfnt;
metrics = &size->metrics;
if ( size->strike_index != 0xFFFFU )
return TT_Err_Ok;
face = (TT_Face)size->root.face;
sfnt = (SFNT_Service)face->sfnt;
sbit_metrics = &size->strike_metrics;
error = sfnt->set_sbit_strike( face,
metrics->x_ppem, metrics->y_ppem,
&strike_index );
if ( !error )
{
/* XXX: TODO: move this code to the SFNT module where it belongs */
#ifdef FT_OPTIMIZE_MEMORY
FT_Byte* strike = face->sbit_table + 8 + strike_index*48;
sbit_metrics->ascender = (FT_Char)strike[16] << 6; /* hori.ascender */
sbit_metrics->descender = (FT_Char)strike[17] << 6; /* hori.descender */
/* XXX: Is this correct? */
sbit_metrics->max_advance = ( (FT_Char)strike[22] + /* min_origin_SB */
strike[18] + /* max_width */
(FT_Char)strike[23] /* min_advance_SB */
) << 6;
#else /* !FT_OPTIMIZE_MEMORY */
TT_SBit_Strike strike = face->sbit_strikes + strike_index;
sbit_metrics->ascender = strike->hori.ascender << 6;
sbit_metrics->descender = strike->hori.descender << 6;
/* XXX: Is this correct? */
sbit_metrics->max_advance = ( strike->hori.min_origin_SB +
strike->hori.max_width +
strike->hori.min_advance_SB ) << 6;
#endif /* !FT_OPTIMIZE_MEMORY */
/* XXX: Is this correct? */
sbit_metrics->height = sbit_metrics->ascender -
sbit_metrics->descender;
sbit_metrics->x_ppem = metrics->x_ppem;
sbit_metrics->y_ppem = metrics->y_ppem;
size->strike_index = (FT_UInt)strike_index;
}
else
{
size->strike_index = 0xFFFFU;
sbit_metrics->x_ppem = 0;
sbit_metrics->y_ppem = 0;
sbit_metrics->ascender = 0;
sbit_metrics->descender = 0;
sbit_metrics->height = 0;
sbit_metrics->max_advance = 0;
}
return error;
}
static FT_Error
Reset_SBit_Size( TT_Size size )
{
TT_Face face;
FT_Error error = TT_Err_Ok;
FT_ULong strike_index;
FT_Size_Metrics* metrics;
FT_Size_Metrics* sbit_metrics;
SFNT_Service sfnt;
metrics = &size->root.metrics;
if ( size->strike_index != 0xFFFFU )
return TT_Err_Ok;
face = (TT_Face)size->root.face;
sfnt = (SFNT_Service)face->sfnt;
sbit_metrics = &size->strike_metrics;
error = sfnt->set_sbit_strike(face,
metrics->x_ppem, metrics->y_ppem,
&strike_index);
if ( !error )
{
TT_SBit_Strike strike = face->sbit_strikes + strike_index;
sbit_metrics->x_ppem = metrics->x_ppem;
sbit_metrics->y_ppem = metrics->y_ppem;
#if 0
/*
* sbit_metrics->?_scale
* are not used now.
*/
sbit_metrics->x_scale = 1 << 16;
sbit_metrics->y_scale = 1 << 16;
#endif
sbit_metrics->ascender = strike->hori.ascender << 6;
sbit_metrics->descender = strike->hori.descender << 6;
/* XXX: Is this correct? */
sbit_metrics->height = sbit_metrics->ascender -
sbit_metrics->descender;
/* XXX: Is this correct? */
sbit_metrics->max_advance = ( strike->hori.min_origin_SB +
strike->hori.max_width +
strike->hori.min_advance_SB ) << 6;
size->strike_index = strike_index;
}
else
{
size->strike_index = 0xFFFFU;
sbit_metrics->x_ppem = 0;
sbit_metrics->y_ppem = 0;
sbit_metrics->ascender = 0;
sbit_metrics->descender = 0;
sbit_metrics->height = 0;
sbit_metrics->max_advance = 0;
}
return error;
}
