static void t42_parse_font_matrix( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; FT_Matrix* matrix = &face->type1.font_matrix; FT_Vector* offset = &face->type1.font_offset; FT_Face root = (FT_Face)&face->root; FT_Fixed temp[6]; FT_Fixed temp_scale; FT_Int result; result = T1_ToFixedArray( parser, 6, temp, 3 ); if ( result < 6 ) { parser->root.error = FT_THROW( Invalid_File_Format ); return; } temp_scale = FT_ABS( temp[3] ); if ( temp_scale == 0 ) { FT_ERROR(( "t1_parse_font_matrix: invalid font matrix\n" )); parser->root.error = FT_THROW( Invalid_File_Format ); return; } /* 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_scale */ 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 offsets must be expressed in integer font units */ offset->x = temp[4] >> 16; offset->y = temp[5] >> 16; }
static void t42_parse_font_matrix( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; FT_Matrix* matrix = &face->type1.font_matrix; FT_Vector* offset = &face->type1.font_offset; FT_Face root = (FT_Face)&face->root; FT_Fixed temp[6]; FT_Fixed temp_scale; (void)T1_ToFixedArray( 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( 1000 * 0x10000L, temp_scale ) >> 16 ); /* we need to scale the values by 1.0/temp_scale */ 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 offsets must be expressed in integer font units */ offset->x = temp[4] >> 16; offset->y = temp[5] >> 16; }