cid_parse_font_matrix( CID_Face face,
CID_Parser* parser )
{
CID_FaceDict dict;
FT_Face root = (FT_Face)&face->root;
FT_Fixed temp[6];
FT_Fixed temp_scale;
if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts )
{
FT_Matrix* matrix;
FT_Vector* offset;
FT_Int result;
dict = face->cid.font_dicts + parser->num_dict;
matrix = &dict->font_matrix;
offset = &dict->font_offset;
result = cid_parser_to_fixed_array( parser, 6, temp, 3 );
if ( result < 6 )
return FT_THROW( Invalid_File_Format );
temp_scale = FT_ABS( temp[3] );
if ( temp_scale == 0 )
{
FT_ERROR(( "cid_parse_font_matrix: invalid font matrix\n" ));
return FT_THROW( Invalid_File_Format );
}
/* Set Units per EM based on FontMatrix values. We set the value to */
/* 1000 / temp_scale, because temp_scale was already multiplied by */
/* 1000 (in t1_tofixed, from psobjs.c). */
root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale );
/* we need to scale the values by 1.0/temp[3] */
if ( temp_scale != 0x10000L )
{
temp[0] = FT_DivFix( temp[0], temp_scale );
temp[1] = FT_DivFix( temp[1], temp_scale );
temp[2] = FT_DivFix( temp[2], temp_scale );
temp[4] = FT_DivFix( temp[4], temp_scale );
temp[5] = FT_DivFix( temp[5], temp_scale );
temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L;
}
matrix->xx = temp[0];
matrix->yx = temp[1];
matrix->xy = temp[2];
matrix->yy = temp[3];
/* note that the font offsets are expressed in integer font units */
offset->x = temp[4] >> 16;
offset->y = temp[5] >> 16;
}
cid_parse_font_matrix( CID_Face face,
CID_Parser* parser )
{
CID_FaceDict dict;
FT_Face root = (FT_Face)&face->root;
FT_Fixed temp[6];
FT_Fixed temp_scale;
if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts )
{
FT_Matrix* matrix;
FT_Vector* offset;
FT_Int result;
dict = face->cid.font_dicts + parser->num_dict;
matrix = &dict->font_matrix;
offset = &dict->font_offset;
/* input is scaled by 1000 to accommodate default FontMatrix */
result = cid_parser_to_fixed_array( parser, 6, temp, 3 );
if ( result < 6 )
return FT_THROW( Invalid_File_Format );
temp_scale = FT_ABS( temp[3] );
if ( temp_scale == 0 )
{
FT_ERROR(( "cid_parse_font_matrix: invalid font matrix\n" ));
return FT_THROW( Invalid_File_Format );
}
/* atypical case */
if ( temp_scale != 0x10000L )
{
/* set units per EM based on FontMatrix values */
root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale );
temp[0] = FT_DivFix( temp[0], temp_scale );
temp[1] = FT_DivFix( temp[1], temp_scale );
temp[2] = FT_DivFix( temp[2], temp_scale );
temp[4] = FT_DivFix( temp[4], temp_scale );
temp[5] = FT_DivFix( temp[5], temp_scale );
temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L;
}
matrix->xx = temp[0];
matrix->yx = temp[1];
matrix->xy = temp[2];
matrix->yy = temp[3];
/* note that the font offsets are expressed in integer font units */
offset->x = temp[4] >> 16;
offset->y = temp[5] >> 16;
}
parse_font_matrix( CID_Face face,
CID_Parser* parser )
{
FT_Matrix* matrix;
FT_Vector* offset;
CID_FaceDict dict;
FT_Face root = (FT_Face)&face->root;
FT_Fixed temp[6];
FT_Fixed temp_scale;
if ( parser->num_dict >= 0 )
{
dict = face->cid.font_dicts + parser->num_dict;
matrix = &dict->font_matrix;
offset = &dict->font_offset;
(void)cid_parser_to_fixed_array( parser, 6, temp, 3 );
temp_scale = FT_ABS( temp[3] );
/* Set units per EM based on FontMatrix values. We set the value to */
/* `1000/temp_scale', because temp_scale was already multiplied by */
/* 1000 (in `t1_tofixed', from psobjs.c). */
root->units_per_EM = (FT_UShort)( FT_DivFix( 0x10000L,
FT_DivFix( temp_scale, 1000 ) ) );
/* we need to scale the values by 1.0/temp[3] */
if ( temp_scale != 0x10000L )
{
temp[0] = FT_DivFix( temp[0], temp_scale );
temp[1] = FT_DivFix( temp[1], temp_scale );
temp[2] = FT_DivFix( temp[2], temp_scale );
temp[4] = FT_DivFix( temp[4], temp_scale );
temp[5] = FT_DivFix( temp[5], temp_scale );
temp[3] = 0x10000L;
}
matrix->xx = temp[0];
matrix->yx = temp[1];
matrix->xy = temp[2];
matrix->yy = temp[3];
/* note that the font offsets are expressed in integer font units */
offset->x = temp[4] >> 16;
offset->y = temp[5] >> 16;
}
