637 * that are pushed in result.
638 *
639 * Opcodes which have a varying number of parameters in the data stream
640 * (NPUSHB, NPUSHW) are handled specially; they have a negative value in
641 * the `opcode_length' table, and the value in `Pop_Push_Count' is set
642 * to zero.
643 *
644 */
645
646
647 #undef PACK
648 #define PACK( x, y ) ( ( x << 4 ) | y )
649
650
651 static
652 const FT_Byte Pop_Push_Count[256] =
653 {
654 /* opcodes are gathered in groups of 16 */
655 /* please keep the spaces as they are */
656
657 /* SVTCA y */ PACK( 0, 0 ),
658 /* SVTCA x */ PACK( 0, 0 ),
659 /* SPvTCA y */ PACK( 0, 0 ),
660 /* SPvTCA x */ PACK( 0, 0 ),
661 /* SFvTCA y */ PACK( 0, 0 ),
662 /* SFvTCA x */ PACK( 0, 0 ),
663 /* SPvTL // */ PACK( 2, 0 ),
664 /* SPvTL + */ PACK( 2, 0 ),
665 /* SFvTL // */ PACK( 2, 0 ),
666 /* SFvTL + */ PACK( 2, 0 ),
667 /* SPvFS */ PACK( 2, 0 ),
668 /* SFvFS */ PACK( 2, 0 ),
669 /* GPv */ PACK( 0, 2 ),
670 /* GFv */ PACK( 0, 2 ),
671 /* SFvTPv */ PACK( 0, 0 ),
672 /* ISECT */ PACK( 5, 0 ),
673
674 /* SRP0 */ PACK( 1, 0 ),
675 /* SRP1 */ PACK( 1, 0 ),
676 /* SRP2 */ PACK( 1, 0 ),
677 /* SZP0 */ PACK( 1, 0 ),
678 /* SZP1 */ PACK( 1, 0 ),
679 /* SZP2 */ PACK( 1, 0 ),
680 /* SZPS */ PACK( 1, 0 ),
681 /* SLOOP */ PACK( 1, 0 ),
682 /* RTG */ PACK( 0, 0 ),
683 /* RTHG */ PACK( 0, 0 ),
684 /* SMD */ PACK( 1, 0 ),
685 /* ELSE */ PACK( 0, 0 ),
686 /* JMPR */ PACK( 1, 0 ),
687 /* SCvTCi */ PACK( 1, 0 ),
688 /* SSwCi */ PACK( 1, 0 ),
689 /* SSW */ PACK( 1, 0 ),
690
691 /* DUP */ PACK( 1, 2 ),
692 /* POP */ PACK( 1, 0 ),
693 /* CLEAR */ PACK( 0, 0 ),
694 /* SWAP */ PACK( 2, 2 ),
695 /* DEPTH */ PACK( 0, 1 ),
696 /* CINDEX */ PACK( 1, 1 ),
697 /* MINDEX */ PACK( 1, 0 ),
698 /* AlignPTS */ PACK( 2, 0 ),
699 /* INS_$28 */ PACK( 0, 0 ),
700 /* UTP */ PACK( 1, 0 ),
701 /* LOOPCALL */ PACK( 2, 0 ),
702 /* CALL */ PACK( 1, 0 ),
703 /* FDEF */ PACK( 1, 0 ),
704 /* ENDF */ PACK( 0, 0 ),
705 /* MDAP[0] */ PACK( 1, 0 ),
706 /* MDAP[1] */ PACK( 1, 0 ),
707
708 /* IUP[0] */ PACK( 0, 0 ),
709 /* IUP[1] */ PACK( 0, 0 ),
710 /* SHP[0] */ PACK( 0, 0 ), /* loops */
711 /* SHP[1] */ PACK( 0, 0 ), /* loops */
712 /* SHC[0] */ PACK( 1, 0 ),
713 /* SHC[1] */ PACK( 1, 0 ),
714 /* SHZ[0] */ PACK( 1, 0 ),
715 /* SHZ[1] */ PACK( 1, 0 ),
716 /* SHPIX */ PACK( 1, 0 ), /* loops */
717 /* IP */ PACK( 0, 0 ), /* loops */
718 /* MSIRP[0] */ PACK( 2, 0 ),
719 /* MSIRP[1] */ PACK( 2, 0 ),
720 /* AlignRP */ PACK( 0, 0 ), /* loops */
721 /* RTDG */ PACK( 0, 0 ),
722 /* MIAP[0] */ PACK( 2, 0 ),
723 /* MIAP[1] */ PACK( 2, 0 ),
724
725 /* NPushB */ PACK( 0, 0 ),
726 /* NPushW */ PACK( 0, 0 ),
727 /* WS */ PACK( 2, 0 ),
728 /* RS */ PACK( 1, 1 ),
729 /* WCvtP */ PACK( 2, 0 ),
730 /* RCvt */ PACK( 1, 1 ),
731 /* GC[0] */ PACK( 1, 1 ),
732 /* GC[1] */ PACK( 1, 1 ),
733 /* SCFS */ PACK( 2, 0 ),
734 /* MD[0] */ PACK( 2, 1 ),
735 /* MD[1] */ PACK( 2, 1 ),
736 /* MPPEM */ PACK( 0, 1 ),
737 /* MPS */ PACK( 0, 1 ),
738 /* FlipON */ PACK( 0, 0 ),
739 /* FlipOFF */ PACK( 0, 0 ),
740 /* DEBUG */ PACK( 1, 0 ),
741
742 /* LT */ PACK( 2, 1 ),
743 /* LTEQ */ PACK( 2, 1 ),
744 /* GT */ PACK( 2, 1 ),
745 /* GTEQ */ PACK( 2, 1 ),
746 /* EQ */ PACK( 2, 1 ),
747 /* NEQ */ PACK( 2, 1 ),
748 /* ODD */ PACK( 1, 1 ),
749 /* EVEN */ PACK( 1, 1 ),
750 /* IF */ PACK( 1, 0 ),
751 /* EIF */ PACK( 0, 0 ),
752 /* AND */ PACK( 2, 1 ),
753 /* OR */ PACK( 2, 1 ),
754 /* NOT */ PACK( 1, 1 ),
755 /* DeltaP1 */ PACK( 1, 0 ),
756 /* SDB */ PACK( 1, 0 ),
757 /* SDS */ PACK( 1, 0 ),
758
759 /* ADD */ PACK( 2, 1 ),
760 /* SUB */ PACK( 2, 1 ),
761 /* DIV */ PACK( 2, 1 ),
762 /* MUL */ PACK( 2, 1 ),
763 /* ABS */ PACK( 1, 1 ),
764 /* NEG */ PACK( 1, 1 ),
765 /* FLOOR */ PACK( 1, 1 ),
766 /* CEILING */ PACK( 1, 1 ),
767 /* ROUND[0] */ PACK( 1, 1 ),
768 /* ROUND[1] */ PACK( 1, 1 ),
769 /* ROUND[2] */ PACK( 1, 1 ),
770 /* ROUND[3] */ PACK( 1, 1 ),
771 /* NROUND[0] */ PACK( 1, 1 ),
772 /* NROUND[1] */ PACK( 1, 1 ),
773 /* NROUND[2] */ PACK( 1, 1 ),
774 /* NROUND[3] */ PACK( 1, 1 ),
775
776 /* WCvtF */ PACK( 2, 0 ),
777 /* DeltaP2 */ PACK( 1, 0 ),
778 /* DeltaP3 */ PACK( 1, 0 ),
779 /* DeltaCn[0] */ PACK( 1, 0 ),
780 /* DeltaCn[1] */ PACK( 1, 0 ),
781 /* DeltaCn[2] */ PACK( 1, 0 ),
782 /* SROUND */ PACK( 1, 0 ),
783 /* S45Round */ PACK( 1, 0 ),
784 /* JROT */ PACK( 2, 0 ),
785 /* JROF */ PACK( 2, 0 ),
786 /* ROFF */ PACK( 0, 0 ),
787 /* INS_$7B */ PACK( 0, 0 ),
788 /* RUTG */ PACK( 0, 0 ),
789 /* RDTG */ PACK( 0, 0 ),
790 /* SANGW */ PACK( 1, 0 ),
791 /* AA */ PACK( 1, 0 ),
792
793 /* FlipPT */ PACK( 0, 0 ), /* loops */
794 /* FlipRgON */ PACK( 2, 0 ),
795 /* FlipRgOFF */ PACK( 2, 0 ),
796 /* INS_$83 */ PACK( 0, 0 ),
797 /* INS_$84 */ PACK( 0, 0 ),
798 /* ScanCTRL */ PACK( 1, 0 ),
799 /* SDPvTL[0] */ PACK( 2, 0 ),
800 /* SDPvTL[1] */ PACK( 2, 0 ),
801 /* GetINFO */ PACK( 1, 1 ),
802 /* IDEF */ PACK( 1, 0 ),
803 /* ROLL */ PACK( 3, 3 ),
804 /* MAX */ PACK( 2, 1 ),
805 /* MIN */ PACK( 2, 1 ),
806 /* ScanTYPE */ PACK( 1, 0 ),
807 /* InstCTRL */ PACK( 2, 0 ),
808 /* INS_$8F */ PACK( 0, 0 ),
809
810 /* INS_$90 */ PACK( 0, 0 ),
811 /* GETVAR */ PACK( 0, 0 ), /* will be handled specially */
812 /* GETDATA */ PACK( 0, 1 ),
813 /* INS_$93 */ PACK( 0, 0 ),
814 /* INS_$94 */ PACK( 0, 0 ),
815 /* INS_$95 */ PACK( 0, 0 ),
816 /* INS_$96 */ PACK( 0, 0 ),
817 /* INS_$97 */ PACK( 0, 0 ),
818 /* INS_$98 */ PACK( 0, 0 ),
819 /* INS_$99 */ PACK( 0, 0 ),
820 /* INS_$9A */ PACK( 0, 0 ),
821 /* INS_$9B */ PACK( 0, 0 ),
822 /* INS_$9C */ PACK( 0, 0 ),
823 /* INS_$9D */ PACK( 0, 0 ),
824 /* INS_$9E */ PACK( 0, 0 ),
825 /* INS_$9F */ PACK( 0, 0 ),
826
827 /* INS_$A0 */ PACK( 0, 0 ),
828 /* INS_$A1 */ PACK( 0, 0 ),
829 /* INS_$A2 */ PACK( 0, 0 ),
830 /* INS_$A3 */ PACK( 0, 0 ),
831 /* INS_$A4 */ PACK( 0, 0 ),
832 /* INS_$A5 */ PACK( 0, 0 ),
833 /* INS_$A6 */ PACK( 0, 0 ),
834 /* INS_$A7 */ PACK( 0, 0 ),
835 /* INS_$A8 */ PACK( 0, 0 ),
836 /* INS_$A9 */ PACK( 0, 0 ),
837 /* INS_$AA */ PACK( 0, 0 ),
838 /* INS_$AB */ PACK( 0, 0 ),
839 /* INS_$AC */ PACK( 0, 0 ),
840 /* INS_$AD */ PACK( 0, 0 ),
841 /* INS_$AE */ PACK( 0, 0 ),
842 /* INS_$AF */ PACK( 0, 0 ),
843
844 /* PushB[0] */ PACK( 0, 1 ),
845 /* PushB[1] */ PACK( 0, 2 ),
846 /* PushB[2] */ PACK( 0, 3 ),
847 /* PushB[3] */ PACK( 0, 4 ),
848 /* PushB[4] */ PACK( 0, 5 ),
849 /* PushB[5] */ PACK( 0, 6 ),
850 /* PushB[6] */ PACK( 0, 7 ),
851 /* PushB[7] */ PACK( 0, 8 ),
852 /* PushW[0] */ PACK( 0, 1 ),
853 /* PushW[1] */ PACK( 0, 2 ),
854 /* PushW[2] */ PACK( 0, 3 ),
855 /* PushW[3] */ PACK( 0, 4 ),
856 /* PushW[4] */ PACK( 0, 5 ),
857 /* PushW[5] */ PACK( 0, 6 ),
858 /* PushW[6] */ PACK( 0, 7 ),
859 /* PushW[7] */ PACK( 0, 8 ),
860
861 /* MDRP[00] */ PACK( 1, 0 ),
862 /* MDRP[01] */ PACK( 1, 0 ),
863 /* MDRP[02] */ PACK( 1, 0 ),
864 /* MDRP[03] */ PACK( 1, 0 ),
865 /* MDRP[04] */ PACK( 1, 0 ),
866 /* MDRP[05] */ PACK( 1, 0 ),
867 /* MDRP[06] */ PACK( 1, 0 ),
868 /* MDRP[07] */ PACK( 1, 0 ),
869 /* MDRP[08] */ PACK( 1, 0 ),
870 /* MDRP[09] */ PACK( 1, 0 ),
871 /* MDRP[10] */ PACK( 1, 0 ),
872 /* MDRP[11] */ PACK( 1, 0 ),
873 /* MDRP[12] */ PACK( 1, 0 ),
874 /* MDRP[13] */ PACK( 1, 0 ),
875 /* MDRP[14] */ PACK( 1, 0 ),
876 /* MDRP[15] */ PACK( 1, 0 ),
877
878 /* MDRP[16] */ PACK( 1, 0 ),
879 /* MDRP[17] */ PACK( 1, 0 ),
880 /* MDRP[18] */ PACK( 1, 0 ),
881 /* MDRP[19] */ PACK( 1, 0 ),
882 /* MDRP[20] */ PACK( 1, 0 ),
883 /* MDRP[21] */ PACK( 1, 0 ),
884 /* MDRP[22] */ PACK( 1, 0 ),
885 /* MDRP[23] */ PACK( 1, 0 ),
886 /* MDRP[24] */ PACK( 1, 0 ),
887 /* MDRP[25] */ PACK( 1, 0 ),
888 /* MDRP[26] */ PACK( 1, 0 ),
889 /* MDRP[27] */ PACK( 1, 0 ),
890 /* MDRP[28] */ PACK( 1, 0 ),
891 /* MDRP[29] */ PACK( 1, 0 ),
892 /* MDRP[30] */ PACK( 1, 0 ),
893 /* MDRP[31] */ PACK( 1, 0 ),
894
895 /* MIRP[00] */ PACK( 2, 0 ),
896 /* MIRP[01] */ PACK( 2, 0 ),
897 /* MIRP[02] */ PACK( 2, 0 ),
898 /* MIRP[03] */ PACK( 2, 0 ),
899 /* MIRP[04] */ PACK( 2, 0 ),
900 /* MIRP[05] */ PACK( 2, 0 ),
901 /* MIRP[06] */ PACK( 2, 0 ),
902 /* MIRP[07] */ PACK( 2, 0 ),
903 /* MIRP[08] */ PACK( 2, 0 ),
904 /* MIRP[09] */ PACK( 2, 0 ),
905 /* MIRP[10] */ PACK( 2, 0 ),
906 /* MIRP[11] */ PACK( 2, 0 ),
907 /* MIRP[12] */ PACK( 2, 0 ),
908 /* MIRP[13] */ PACK( 2, 0 ),
909 /* MIRP[14] */ PACK( 2, 0 ),
910 /* MIRP[15] */ PACK( 2, 0 ),
911
912 /* MIRP[16] */ PACK( 2, 0 ),
913 /* MIRP[17] */ PACK( 2, 0 ),
914 /* MIRP[18] */ PACK( 2, 0 ),
915 /* MIRP[19] */ PACK( 2, 0 ),
916 /* MIRP[20] */ PACK( 2, 0 ),
917 /* MIRP[21] */ PACK( 2, 0 ),
918 /* MIRP[22] */ PACK( 2, 0 ),
919 /* MIRP[23] */ PACK( 2, 0 ),
920 /* MIRP[24] */ PACK( 2, 0 ),
921 /* MIRP[25] */ PACK( 2, 0 ),
922 /* MIRP[26] */ PACK( 2, 0 ),
923 /* MIRP[27] */ PACK( 2, 0 ),
924 /* MIRP[28] */ PACK( 2, 0 ),
925 /* MIRP[29] */ PACK( 2, 0 ),
926 /* MIRP[30] */ PACK( 2, 0 ),
927 /* MIRP[31] */ PACK( 2, 0 )
928 };
929
930
931 #ifdef FT_DEBUG_LEVEL_TRACE
932
933 /* the first hex digit gives the length of the opcode name; the space */
934 /* after the digit is here just to increase readability of the source */
935 /* code */
936
937 static
938 const char* const opcode_name[256] =
939 {
940 "7 SVTCA y",
941 "7 SVTCA x",
942 "8 SPvTCA y",
943 "8 SPvTCA x",
944 "8 SFvTCA y",
945 "8 SFvTCA x",
946 "8 SPvTL ||",
947 "7 SPvTL +",
948 "8 SFvTL ||",
949 "7 SFvTL +",
950 "5 SPvFS",
951 "5 SFvFS",
952 "3 GPv",
953 "3 GFv",
954 "6 SFvTPv",
955 "5 ISECT",
956
957 "4 SRP0",
958 "4 SRP1",
959 "4 SRP2",
960 "4 SZP0",
961 "4 SZP1",
962 "4 SZP2",
963 "4 SZPS",
964 "5 SLOOP",
965 "3 RTG",
966 "4 RTHG",
967 "3 SMD",
968 "4 ELSE",
969 "4 JMPR",
970 "6 SCvTCi",
971 "5 SSwCi",
972 "3 SSW",
973
974 "3 DUP",
975 "3 POP",
976 "5 CLEAR",
977 "4 SWAP",
978 "5 DEPTH",
979 "6 CINDEX",
980 "6 MINDEX",
981 "8 AlignPTS",
982 "7 INS_$28",
983 "3 UTP",
984 "8 LOOPCALL",
985 "4 CALL",
986 "4 FDEF",
987 "4 ENDF",
988 "7 MDAP[0]",
989 "7 MDAP[1]",
990
991 "6 IUP[0]",
992 "6 IUP[1]",
993 "6 SHP[0]",
994 "6 SHP[1]",
995 "6 SHC[0]",
996 "6 SHC[1]",
997 "6 SHZ[0]",
998 "6 SHZ[1]",
999 "5 SHPIX",
1000 "2 IP",
1001 "8 MSIRP[0]",
1002 "8 MSIRP[1]",
1003 "7 AlignRP",
1004 "4 RTDG",
1005 "7 MIAP[0]",
1006 "7 MIAP[1]",
1007
1008 "6 NPushB",
1009 "6 NPushW",
1010 "2 WS",
1011 "2 RS",
1012 "5 WCvtP",
1013 "4 RCvt",
1014 "5 GC[0]",
1015 "5 GC[1]",
1016 "4 SCFS",
1017 "5 MD[0]",
1018 "5 MD[1]",
1019 "5 MPPEM",
1020 "3 MPS",
1021 "6 FlipON",
1022 "7 FlipOFF",
1023 "5 DEBUG",
1024
1025 "2 LT",
1026 "4 LTEQ",
1027 "2 GT",
1028 "4 GTEQ",
1029 "2 EQ",
1030 "3 NEQ",
1031 "3 ODD",
1032 "4 EVEN",
1033 "2 IF",
1034 "3 EIF",
1035 "3 AND",
1036 "2 OR",
1037 "3 NOT",
1038 "7 DeltaP1",
1039 "3 SDB",
1040 "3 SDS",
1041
1042 "3 ADD",
1043 "3 SUB",
1044 "3 DIV",
1045 "3 MUL",
1046 "3 ABS",
1047 "3 NEG",
1048 "5 FLOOR",
1049 "7 CEILING",
1050 "8 ROUND[0]",
1051 "8 ROUND[1]",
1052 "8 ROUND[2]",
1053 "8 ROUND[3]",
1054 "9 NROUND[0]",
1055 "9 NROUND[1]",
1056 "9 NROUND[2]",
1057 "9 NROUND[3]",
1058
1059 "5 WCvtF",
1060 "7 DeltaP2",
1061 "7 DeltaP3",
1062 "A DeltaCn[0]",
1063 "A DeltaCn[1]",
1064 "A DeltaCn[2]",
1065 "6 SROUND",
1066 "8 S45Round",
1067 "4 JROT",
1068 "4 JROF",
1069 "4 ROFF",
1070 "7 INS_$7B",
1071 "4 RUTG",
1072 "4 RDTG",
1073 "5 SANGW",
1074 "2 AA",
1075
1076 "6 FlipPT",
1077 "8 FlipRgON",
1078 "9 FlipRgOFF",
1079 "7 INS_$83",
1080 "7 INS_$84",
1081 "8 ScanCTRL",
1082 "9 SDPvTL[0]",
1083 "9 SDPvTL[1]",
1084 "7 GetINFO",
1085 "4 IDEF",
1086 "4 ROLL",
1087 "3 MAX",
1088 "3 MIN",
1089 "8 ScanTYPE",
1090 "8 InstCTRL",
1091 "7 INS_$8F",
1092
1093 "7 INS_$90",
1094 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
1095 "6 GETVAR",
1096 "7 GETDATA",
1097 #else
1098 "7 INS_$91",
1099 "7 INS_$92",
1100 #endif
1101 "7 INS_$93",
1102 "7 INS_$94",
1103 "7 INS_$95",
1104 "7 INS_$96",
1105 "7 INS_$97",
1106 "7 INS_$98",
1107 "7 INS_$99",
1108 "7 INS_$9A",
1109 "7 INS_$9B",
1110 "7 INS_$9C",
1111 "7 INS_$9D",
1112 "7 INS_$9E",
1113 "7 INS_$9F",
1114
1115 "7 INS_$A0",
1116 "7 INS_$A1",
1117 "7 INS_$A2",
1118 "7 INS_$A3",
1119 "7 INS_$A4",
1120 "7 INS_$A5",
1121 "7 INS_$A6",
1122 "7 INS_$A7",
1123 "7 INS_$A8",
1124 "7 INS_$A9",
1125 "7 INS_$AA",
1126 "7 INS_$AB",
1127 "7 INS_$AC",
1128 "7 INS_$AD",
1129 "7 INS_$AE",
1130 "7 INS_$AF",
1131
1132 "8 PushB[0]",
1133 "8 PushB[1]",
1134 "8 PushB[2]",
1135 "8 PushB[3]",
1136 "8 PushB[4]",
1137 "8 PushB[5]",
1138 "8 PushB[6]",
1139 "8 PushB[7]",
1140 "8 PushW[0]",
1141 "8 PushW[1]",
1142 "8 PushW[2]",
1143 "8 PushW[3]",
1144 "8 PushW[4]",
1145 "8 PushW[5]",
1146 "8 PushW[6]",
1147 "8 PushW[7]",
1148
1149 "7 MDRP[G]",
1150 "7 MDRP[B]",
1151 "7 MDRP[W]",
1152 "7 MDRP[?]",
1153 "8 MDRP[rG]",
1154 "8 MDRP[rB]",
1155 "8 MDRP[rW]",
1156 "8 MDRP[r?]",
1157 "8 MDRP[mG]",
1158 "8 MDRP[mB]",
1159 "8 MDRP[mW]",
1160 "8 MDRP[m?]",
1161 "9 MDRP[mrG]",
1162 "9 MDRP[mrB]",
1163 "9 MDRP[mrW]",
1164 "9 MDRP[mr?]",
1165
1166 "8 MDRP[pG]",
1167 "8 MDRP[pB]",
1168 "8 MDRP[pW]",
1169 "8 MDRP[p?]",
1170 "9 MDRP[prG]",
1171 "9 MDRP[prB]",
1172 "9 MDRP[prW]",
1173 "9 MDRP[pr?]",
1174 "9 MDRP[pmG]",
1175 "9 MDRP[pmB]",
1176 "9 MDRP[pmW]",
1177 "9 MDRP[pm?]",
1178 "A MDRP[pmrG]",
1179 "A MDRP[pmrB]",
1180 "A MDRP[pmrW]",
1181 "A MDRP[pmr?]",
1182
1183 "7 MIRP[G]",
1184 "7 MIRP[B]",
1185 "7 MIRP[W]",
1186 "7 MIRP[?]",
1187 "8 MIRP[rG]",
1188 "8 MIRP[rB]",
1189 "8 MIRP[rW]",
1190 "8 MIRP[r?]",
1191 "8 MIRP[mG]",
1192 "8 MIRP[mB]",
1193 "8 MIRP[mW]",
1194 "8 MIRP[m?]",
1195 "9 MIRP[mrG]",
1196 "9 MIRP[mrB]",
1197 "9 MIRP[mrW]",
1198 "9 MIRP[mr?]",
1199
1200 "8 MIRP[pG]",
1201 "8 MIRP[pB]",
1202 "8 MIRP[pW]",
1203 "8 MIRP[p?]",
1204 "9 MIRP[prG]",
1205 "9 MIRP[prB]",
1206 "9 MIRP[prW]",
1207 "9 MIRP[pr?]",
1208 "9 MIRP[pmG]",
1209 "9 MIRP[pmB]",
1210 "9 MIRP[pmW]",
1211 "9 MIRP[pm?]",
1212 "A MIRP[pmrG]",
1213 "A MIRP[pmrB]",
1214 "A MIRP[pmrW]",
1215 "A MIRP[pmr?]"
1216 };
1217
1218 #endif /* FT_DEBUG_LEVEL_TRACE */
1219
1220
1221 static
1222 const FT_Char opcode_length[256] =
1223 {
1224 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1225 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1226 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1227 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1228
1229 -1,-2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1230 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1231 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1232 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1233
1234 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1235 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1645
1646 /* NOTE: Because the last instruction of a program may be a CALL */
1647 /* which will return to the first byte *after* the code */
1648 /* range, we test for aIP <= Size, instead of aIP < Size. */
1649
1650 if ( aIP > range->size )
1651 {
1652 exc->error = FT_THROW( Code_Overflow );
1653 return FAILURE;
1654 }
1655
1656 exc->code = range->base;
1657 exc->codeSize = range->size;
1658 exc->IP = aIP;
1659 exc->curRange = aRange;
1660
1661 return SUCCESS;
1662 }
1663
1664
1665 /**************************************************************************
1666 *
1667 * @Function:
1668 * Direct_Move
1669 *
1670 * @Description:
1671 * Moves a point by a given distance along the freedom vector. The
1672 * point will be `touched'.
1673 *
1674 * @Input:
1675 * point ::
1676 * The index of the point to move.
1677 *
1678 * distance ::
1679 * The distance to apply.
1680 *
1681 * @InOut:
1682 * zone ::
1683 * The affected glyph zone.
1684 *
1869 FT_UShort point,
1870 FT_F26Dot6 distance )
1871 {
1872 FT_UNUSED( exc );
1873
1874 zone->org[point].x = ADD_LONG( zone->org[point].x, distance );
1875 }
1876
1877
1878 static void
1879 Direct_Move_Orig_Y( TT_ExecContext exc,
1880 TT_GlyphZone zone,
1881 FT_UShort point,
1882 FT_F26Dot6 distance )
1883 {
1884 FT_UNUSED( exc );
1885
1886 zone->org[point].y = ADD_LONG( zone->org[point].y, distance );
1887 }
1888
1889
1890 /**************************************************************************
1891 *
1892 * @Function:
1893 * Round_None
1894 *
1895 * @Description:
1896 * Does not round, but adds engine compensation.
1897 *
1898 * @Input:
1899 * distance ::
1900 * The distance (not) to round.
1901 *
1902 * compensation ::
1903 * The engine compensation.
1904 *
1905 * @Return:
1906 * The compensated distance.
1907 *
1908 * @Note:
1909 * The TrueType specification says very few about the relationship
1910 * between rounding and engine compensation. However, it seems from
1911 * the description of super round that we should add the compensation
1912 * before rounding.
1913 */
1914 static FT_F26Dot6
1915 Round_None( TT_ExecContext exc,
1916 FT_F26Dot6 distance,
1917 FT_F26Dot6 compensation )
1918 {
1919 FT_F26Dot6 val;
1920
1921 FT_UNUSED( exc );
1922
1923
1924 if ( distance >= 0 )
1925 {
1926 val = ADD_LONG( distance, compensation );
1927 if ( val < 0 )
1928 val = 0;
1929 }
1930 else
1931 {
1932 val = SUB_LONG( distance, compensation );
|
637 * that are pushed in result.
638 *
639 * Opcodes which have a varying number of parameters in the data stream
640 * (NPUSHB, NPUSHW) are handled specially; they have a negative value in
641 * the `opcode_length' table, and the value in `Pop_Push_Count' is set
642 * to zero.
643 *
644 */
645
646
647 #undef PACK
648 #define PACK( x, y ) ( ( x << 4 ) | y )
649
650
651 static
652 const FT_Byte Pop_Push_Count[256] =
653 {
654 /* opcodes are gathered in groups of 16 */
655 /* please keep the spaces as they are */
656
657 /* 0x00 */
658 /* SVTCA[0] */ PACK( 0, 0 ),
659 /* SVTCA[1] */ PACK( 0, 0 ),
660 /* SPVTCA[0] */ PACK( 0, 0 ),
661 /* SPVTCA[1] */ PACK( 0, 0 ),
662 /* SFVTCA[0] */ PACK( 0, 0 ),
663 /* SFVTCA[1] */ PACK( 0, 0 ),
664 /* SPVTL[0] */ PACK( 2, 0 ),
665 /* SPVTL[1] */ PACK( 2, 0 ),
666 /* SFVTL[0] */ PACK( 2, 0 ),
667 /* SFVTL[1] */ PACK( 2, 0 ),
668 /* SPVFS */ PACK( 2, 0 ),
669 /* SFVFS */ PACK( 2, 0 ),
670 /* GPV */ PACK( 0, 2 ),
671 /* GFV */ PACK( 0, 2 ),
672 /* SFVTPV */ PACK( 0, 0 ),
673 /* ISECT */ PACK( 5, 0 ),
674
675 /* 0x10 */
676 /* SRP0 */ PACK( 1, 0 ),
677 /* SRP1 */ PACK( 1, 0 ),
678 /* SRP2 */ PACK( 1, 0 ),
679 /* SZP0 */ PACK( 1, 0 ),
680 /* SZP1 */ PACK( 1, 0 ),
681 /* SZP2 */ PACK( 1, 0 ),
682 /* SZPS */ PACK( 1, 0 ),
683 /* SLOOP */ PACK( 1, 0 ),
684 /* RTG */ PACK( 0, 0 ),
685 /* RTHG */ PACK( 0, 0 ),
686 /* SMD */ PACK( 1, 0 ),
687 /* ELSE */ PACK( 0, 0 ),
688 /* JMPR */ PACK( 1, 0 ),
689 /* SCVTCI */ PACK( 1, 0 ),
690 /* SSWCI */ PACK( 1, 0 ),
691 /* SSW */ PACK( 1, 0 ),
692
693 /* 0x20 */
694 /* DUP */ PACK( 1, 2 ),
695 /* POP */ PACK( 1, 0 ),
696 /* CLEAR */ PACK( 0, 0 ),
697 /* SWAP */ PACK( 2, 2 ),
698 /* DEPTH */ PACK( 0, 1 ),
699 /* CINDEX */ PACK( 1, 1 ),
700 /* MINDEX */ PACK( 1, 0 ),
701 /* ALIGNPTS */ PACK( 2, 0 ),
702 /* INS_$28 */ PACK( 0, 0 ),
703 /* UTP */ PACK( 1, 0 ),
704 /* LOOPCALL */ PACK( 2, 0 ),
705 /* CALL */ PACK( 1, 0 ),
706 /* FDEF */ PACK( 1, 0 ),
707 /* ENDF */ PACK( 0, 0 ),
708 /* MDAP[0] */ PACK( 1, 0 ),
709 /* MDAP[1] */ PACK( 1, 0 ),
710
711 /* 0x30 */
712 /* IUP[0] */ PACK( 0, 0 ),
713 /* IUP[1] */ PACK( 0, 0 ),
714 /* SHP[0] */ PACK( 0, 0 ), /* loops */
715 /* SHP[1] */ PACK( 0, 0 ), /* loops */
716 /* SHC[0] */ PACK( 1, 0 ),
717 /* SHC[1] */ PACK( 1, 0 ),
718 /* SHZ[0] */ PACK( 1, 0 ),
719 /* SHZ[1] */ PACK( 1, 0 ),
720 /* SHPIX */ PACK( 1, 0 ), /* loops */
721 /* IP */ PACK( 0, 0 ), /* loops */
722 /* MSIRP[0] */ PACK( 2, 0 ),
723 /* MSIRP[1] */ PACK( 2, 0 ),
724 /* ALIGNRP */ PACK( 0, 0 ), /* loops */
725 /* RTDG */ PACK( 0, 0 ),
726 /* MIAP[0] */ PACK( 2, 0 ),
727 /* MIAP[1] */ PACK( 2, 0 ),
728
729 /* 0x40 */
730 /* NPUSHB */ PACK( 0, 0 ),
731 /* NPUSHW */ PACK( 0, 0 ),
732 /* WS */ PACK( 2, 0 ),
733 /* RS */ PACK( 1, 1 ),
734 /* WCVTP */ PACK( 2, 0 ),
735 /* RCVT */ PACK( 1, 1 ),
736 /* GC[0] */ PACK( 1, 1 ),
737 /* GC[1] */ PACK( 1, 1 ),
738 /* SCFS */ PACK( 2, 0 ),
739 /* MD[0] */ PACK( 2, 1 ),
740 /* MD[1] */ PACK( 2, 1 ),
741 /* MPPEM */ PACK( 0, 1 ),
742 /* MPS */ PACK( 0, 1 ),
743 /* FLIPON */ PACK( 0, 0 ),
744 /* FLIPOFF */ PACK( 0, 0 ),
745 /* DEBUG */ PACK( 1, 0 ),
746
747 /* 0x50 */
748 /* LT */ PACK( 2, 1 ),
749 /* LTEQ */ PACK( 2, 1 ),
750 /* GT */ PACK( 2, 1 ),
751 /* GTEQ */ PACK( 2, 1 ),
752 /* EQ */ PACK( 2, 1 ),
753 /* NEQ */ PACK( 2, 1 ),
754 /* ODD */ PACK( 1, 1 ),
755 /* EVEN */ PACK( 1, 1 ),
756 /* IF */ PACK( 1, 0 ),
757 /* EIF */ PACK( 0, 0 ),
758 /* AND */ PACK( 2, 1 ),
759 /* OR */ PACK( 2, 1 ),
760 /* NOT */ PACK( 1, 1 ),
761 /* DELTAP1 */ PACK( 1, 0 ),
762 /* SDB */ PACK( 1, 0 ),
763 /* SDS */ PACK( 1, 0 ),
764
765 /* 0x60 */
766 /* ADD */ PACK( 2, 1 ),
767 /* SUB */ PACK( 2, 1 ),
768 /* DIV */ PACK( 2, 1 ),
769 /* MUL */ PACK( 2, 1 ),
770 /* ABS */ PACK( 1, 1 ),
771 /* NEG */ PACK( 1, 1 ),
772 /* FLOOR */ PACK( 1, 1 ),
773 /* CEILING */ PACK( 1, 1 ),
774 /* ROUND[0] */ PACK( 1, 1 ),
775 /* ROUND[1] */ PACK( 1, 1 ),
776 /* ROUND[2] */ PACK( 1, 1 ),
777 /* ROUND[3] */ PACK( 1, 1 ),
778 /* NROUND[0] */ PACK( 1, 1 ),
779 /* NROUND[1] */ PACK( 1, 1 ),
780 /* NROUND[2] */ PACK( 1, 1 ),
781 /* NROUND[3] */ PACK( 1, 1 ),
782
783 /* 0x70 */
784 /* WCVTF */ PACK( 2, 0 ),
785 /* DELTAP2 */ PACK( 1, 0 ),
786 /* DELTAP3 */ PACK( 1, 0 ),
787 /* DELTAC1 */ PACK( 1, 0 ),
788 /* DELTAC2 */ PACK( 1, 0 ),
789 /* DELTAC3 */ PACK( 1, 0 ),
790 /* SROUND */ PACK( 1, 0 ),
791 /* S45ROUND */ PACK( 1, 0 ),
792 /* JROT */ PACK( 2, 0 ),
793 /* JROF */ PACK( 2, 0 ),
794 /* ROFF */ PACK( 0, 0 ),
795 /* INS_$7B */ PACK( 0, 0 ),
796 /* RUTG */ PACK( 0, 0 ),
797 /* RDTG */ PACK( 0, 0 ),
798 /* SANGW */ PACK( 1, 0 ),
799 /* AA */ PACK( 1, 0 ),
800
801 /* 0x80 */
802 /* FLIPPT */ PACK( 0, 0 ), /* loops */
803 /* FLIPRGON */ PACK( 2, 0 ),
804 /* FLIPRGOFF */ PACK( 2, 0 ),
805 /* INS_$83 */ PACK( 0, 0 ),
806 /* INS_$84 */ PACK( 0, 0 ),
807 /* SCANCTRL */ PACK( 1, 0 ),
808 /* SDPVTL[0] */ PACK( 2, 0 ),
809 /* SDPVTL[1] */ PACK( 2, 0 ),
810 /* GETINFO */ PACK( 1, 1 ),
811 /* IDEF */ PACK( 1, 0 ),
812 /* ROLL */ PACK( 3, 3 ),
813 /* MAX */ PACK( 2, 1 ),
814 /* MIN */ PACK( 2, 1 ),
815 /* SCANTYPE */ PACK( 1, 0 ),
816 /* INSTCTRL */ PACK( 2, 0 ),
817 /* INS_$8F */ PACK( 0, 0 ),
818
819 /* 0x90 */
820 /* INS_$90 */ PACK( 0, 0 ),
821 /* GETVAR */ PACK( 0, 0 ), /* will be handled specially */
822 /* GETDATA */ PACK( 0, 1 ),
823 /* INS_$93 */ PACK( 0, 0 ),
824 /* INS_$94 */ PACK( 0, 0 ),
825 /* INS_$95 */ PACK( 0, 0 ),
826 /* INS_$96 */ PACK( 0, 0 ),
827 /* INS_$97 */ PACK( 0, 0 ),
828 /* INS_$98 */ PACK( 0, 0 ),
829 /* INS_$99 */ PACK( 0, 0 ),
830 /* INS_$9A */ PACK( 0, 0 ),
831 /* INS_$9B */ PACK( 0, 0 ),
832 /* INS_$9C */ PACK( 0, 0 ),
833 /* INS_$9D */ PACK( 0, 0 ),
834 /* INS_$9E */ PACK( 0, 0 ),
835 /* INS_$9F */ PACK( 0, 0 ),
836
837 /* 0xA0 */
838 /* INS_$A0 */ PACK( 0, 0 ),
839 /* INS_$A1 */ PACK( 0, 0 ),
840 /* INS_$A2 */ PACK( 0, 0 ),
841 /* INS_$A3 */ PACK( 0, 0 ),
842 /* INS_$A4 */ PACK( 0, 0 ),
843 /* INS_$A5 */ PACK( 0, 0 ),
844 /* INS_$A6 */ PACK( 0, 0 ),
845 /* INS_$A7 */ PACK( 0, 0 ),
846 /* INS_$A8 */ PACK( 0, 0 ),
847 /* INS_$A9 */ PACK( 0, 0 ),
848 /* INS_$AA */ PACK( 0, 0 ),
849 /* INS_$AB */ PACK( 0, 0 ),
850 /* INS_$AC */ PACK( 0, 0 ),
851 /* INS_$AD */ PACK( 0, 0 ),
852 /* INS_$AE */ PACK( 0, 0 ),
853 /* INS_$AF */ PACK( 0, 0 ),
854
855 /* 0xB0 */
856 /* PUSHB[0] */ PACK( 0, 1 ),
857 /* PUSHB[1] */ PACK( 0, 2 ),
858 /* PUSHB[2] */ PACK( 0, 3 ),
859 /* PUSHB[3] */ PACK( 0, 4 ),
860 /* PUSHB[4] */ PACK( 0, 5 ),
861 /* PUSHB[5] */ PACK( 0, 6 ),
862 /* PUSHB[6] */ PACK( 0, 7 ),
863 /* PUSHB[7] */ PACK( 0, 8 ),
864 /* PUSHW[0] */ PACK( 0, 1 ),
865 /* PUSHW[1] */ PACK( 0, 2 ),
866 /* PUSHW[2] */ PACK( 0, 3 ),
867 /* PUSHW[3] */ PACK( 0, 4 ),
868 /* PUSHW[4] */ PACK( 0, 5 ),
869 /* PUSHW[5] */ PACK( 0, 6 ),
870 /* PUSHW[6] */ PACK( 0, 7 ),
871 /* PUSHW[7] */ PACK( 0, 8 ),
872
873 /* 0xC0 */
874 /* MDRP[00] */ PACK( 1, 0 ),
875 /* MDRP[01] */ PACK( 1, 0 ),
876 /* MDRP[02] */ PACK( 1, 0 ),
877 /* MDRP[03] */ PACK( 1, 0 ),
878 /* MDRP[04] */ PACK( 1, 0 ),
879 /* MDRP[05] */ PACK( 1, 0 ),
880 /* MDRP[06] */ PACK( 1, 0 ),
881 /* MDRP[07] */ PACK( 1, 0 ),
882 /* MDRP[08] */ PACK( 1, 0 ),
883 /* MDRP[09] */ PACK( 1, 0 ),
884 /* MDRP[10] */ PACK( 1, 0 ),
885 /* MDRP[11] */ PACK( 1, 0 ),
886 /* MDRP[12] */ PACK( 1, 0 ),
887 /* MDRP[13] */ PACK( 1, 0 ),
888 /* MDRP[14] */ PACK( 1, 0 ),
889 /* MDRP[15] */ PACK( 1, 0 ),
890
891 /* 0xD0 */
892 /* MDRP[16] */ PACK( 1, 0 ),
893 /* MDRP[17] */ PACK( 1, 0 ),
894 /* MDRP[18] */ PACK( 1, 0 ),
895 /* MDRP[19] */ PACK( 1, 0 ),
896 /* MDRP[20] */ PACK( 1, 0 ),
897 /* MDRP[21] */ PACK( 1, 0 ),
898 /* MDRP[22] */ PACK( 1, 0 ),
899 /* MDRP[23] */ PACK( 1, 0 ),
900 /* MDRP[24] */ PACK( 1, 0 ),
901 /* MDRP[25] */ PACK( 1, 0 ),
902 /* MDRP[26] */ PACK( 1, 0 ),
903 /* MDRP[27] */ PACK( 1, 0 ),
904 /* MDRP[28] */ PACK( 1, 0 ),
905 /* MDRP[29] */ PACK( 1, 0 ),
906 /* MDRP[30] */ PACK( 1, 0 ),
907 /* MDRP[31] */ PACK( 1, 0 ),
908
909 /* 0xE0 */
910 /* MIRP[00] */ PACK( 2, 0 ),
911 /* MIRP[01] */ PACK( 2, 0 ),
912 /* MIRP[02] */ PACK( 2, 0 ),
913 /* MIRP[03] */ PACK( 2, 0 ),
914 /* MIRP[04] */ PACK( 2, 0 ),
915 /* MIRP[05] */ PACK( 2, 0 ),
916 /* MIRP[06] */ PACK( 2, 0 ),
917 /* MIRP[07] */ PACK( 2, 0 ),
918 /* MIRP[08] */ PACK( 2, 0 ),
919 /* MIRP[09] */ PACK( 2, 0 ),
920 /* MIRP[10] */ PACK( 2, 0 ),
921 /* MIRP[11] */ PACK( 2, 0 ),
922 /* MIRP[12] */ PACK( 2, 0 ),
923 /* MIRP[13] */ PACK( 2, 0 ),
924 /* MIRP[14] */ PACK( 2, 0 ),
925 /* MIRP[15] */ PACK( 2, 0 ),
926
927 /* 0xF0 */
928 /* MIRP[16] */ PACK( 2, 0 ),
929 /* MIRP[17] */ PACK( 2, 0 ),
930 /* MIRP[18] */ PACK( 2, 0 ),
931 /* MIRP[19] */ PACK( 2, 0 ),
932 /* MIRP[20] */ PACK( 2, 0 ),
933 /* MIRP[21] */ PACK( 2, 0 ),
934 /* MIRP[22] */ PACK( 2, 0 ),
935 /* MIRP[23] */ PACK( 2, 0 ),
936 /* MIRP[24] */ PACK( 2, 0 ),
937 /* MIRP[25] */ PACK( 2, 0 ),
938 /* MIRP[26] */ PACK( 2, 0 ),
939 /* MIRP[27] */ PACK( 2, 0 ),
940 /* MIRP[28] */ PACK( 2, 0 ),
941 /* MIRP[29] */ PACK( 2, 0 ),
942 /* MIRP[30] */ PACK( 2, 0 ),
943 /* MIRP[31] */ PACK( 2, 0 )
944 };
945
946
947 #ifdef FT_DEBUG_LEVEL_TRACE
948
949 /* the first hex digit gives the length of the opcode name; the space */
950 /* after the digit is here just to increase readability of the source */
951 /* code */
952
953 static
954 const char* const opcode_name[256] =
955 {
956 /* 0x00 */
957 "8 SVTCA[y]",
958 "8 SVTCA[x]",
959 "9 SPVTCA[y]",
960 "9 SPVTCA[x]",
961 "9 SFVTCA[y]",
962 "9 SFVTCA[x]",
963 "9 SPVTL[||]",
964 "8 SPVTL[+]",
965 "9 SFVTL[||]",
966 "8 SFVTL[+]",
967 "5 SPVFS",
968 "5 SFVFS",
969 "3 GPV",
970 "3 GFV",
971 "6 SFVTPV",
972 "5 ISECT",
973
974 /* 0x10 */
975 "4 SRP0",
976 "4 SRP1",
977 "4 SRP2",
978 "4 SZP0",
979 "4 SZP1",
980 "4 SZP2",
981 "4 SZPS",
982 "5 SLOOP",
983 "3 RTG",
984 "4 RTHG",
985 "3 SMD",
986 "4 ELSE",
987 "4 JMPR",
988 "6 SCVTCI",
989 "5 SSWCI",
990 "3 SSW",
991
992 /* 0x20 */
993 "3 DUP",
994 "3 POP",
995 "5 CLEAR",
996 "4 SWAP",
997 "5 DEPTH",
998 "6 CINDEX",
999 "6 MINDEX",
1000 "8 ALIGNPTS",
1001 "7 INS_$28",
1002 "3 UTP",
1003 "8 LOOPCALL",
1004 "4 CALL",
1005 "4 FDEF",
1006 "4 ENDF",
1007 "6 MDAP[]",
1008 "9 MDAP[rnd]",
1009
1010 /* 0x30 */
1011 "6 IUP[y]",
1012 "6 IUP[x]",
1013 "8 SHP[rp2]",
1014 "8 SHP[rp1]",
1015 "8 SHC[rp2]",
1016 "8 SHC[rp1]",
1017 "8 SHZ[rp2]",
1018 "8 SHZ[rp1]",
1019 "5 SHPIX",
1020 "2 IP",
1021 "7 MSIRP[]",
1022 "A MSIRP[rp0]",
1023 "7 ALIGNRP",
1024 "4 RTDG",
1025 "6 MIAP[]",
1026 "9 MIAP[rnd]",
1027
1028 /* 0x40 */
1029 "6 NPUSHB",
1030 "6 NPUSHW",
1031 "2 WS",
1032 "2 RS",
1033 "5 WCVTP",
1034 "4 RCVT",
1035 "8 GC[curr]",
1036 "8 GC[orig]",
1037 "4 SCFS",
1038 "8 MD[curr]",
1039 "8 MD[orig]",
1040 "5 MPPEM",
1041 "3 MPS",
1042 "6 FLIPON",
1043 "7 FLIPOFF",
1044 "5 DEBUG",
1045
1046 /* 0x50 */
1047 "2 LT",
1048 "4 LTEQ",
1049 "2 GT",
1050 "4 GTEQ",
1051 "2 EQ",
1052 "3 NEQ",
1053 "3 ODD",
1054 "4 EVEN",
1055 "2 IF",
1056 "3 EIF",
1057 "3 AND",
1058 "2 OR",
1059 "3 NOT",
1060 "7 DELTAP1",
1061 "3 SDB",
1062 "3 SDS",
1063
1064 /* 0x60 */
1065 "3 ADD",
1066 "3 SUB",
1067 "3 DIV",
1068 "3 MUL",
1069 "3 ABS",
1070 "3 NEG",
1071 "5 FLOOR",
1072 "7 CEILING",
1073 "8 ROUND[G]",
1074 "8 ROUND[B]",
1075 "8 ROUND[W]",
1076 "7 ROUND[]",
1077 "9 NROUND[G]",
1078 "9 NROUND[B]",
1079 "9 NROUND[W]",
1080 "8 NROUND[]",
1081
1082 /* 0x70 */
1083 "5 WCVTF",
1084 "7 DELTAP2",
1085 "7 DELTAP3",
1086 "7 DELTAC1",
1087 "7 DELTAC2",
1088 "7 DELTAC3",
1089 "6 SROUND",
1090 "8 S45ROUND",
1091 "4 JROT",
1092 "4 JROF",
1093 "4 ROFF",
1094 "7 INS_$7B",
1095 "4 RUTG",
1096 "4 RDTG",
1097 "5 SANGW",
1098 "2 AA",
1099
1100 /* 0x80 */
1101 "6 FLIPPT",
1102 "8 FLIPRGON",
1103 "9 FLIPRGOFF",
1104 "7 INS_$83",
1105 "7 INS_$84",
1106 "8 SCANCTRL",
1107 "A SDPVTL[||]",
1108 "9 SDPVTL[+]",
1109 "7 GETINFO",
1110 "4 IDEF",
1111 "4 ROLL",
1112 "3 MAX",
1113 "3 MIN",
1114 "8 SCANTYPE",
1115 "8 INSTCTRL",
1116 "7 INS_$8F",
1117
1118 /* 0x90 */
1119 "7 INS_$90",
1120 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
1121 "C GETVARIATION",
1122 "7 GETDATA",
1123 #else
1124 "7 INS_$91",
1125 "7 INS_$92",
1126 #endif
1127 "7 INS_$93",
1128 "7 INS_$94",
1129 "7 INS_$95",
1130 "7 INS_$96",
1131 "7 INS_$97",
1132 "7 INS_$98",
1133 "7 INS_$99",
1134 "7 INS_$9A",
1135 "7 INS_$9B",
1136 "7 INS_$9C",
1137 "7 INS_$9D",
1138 "7 INS_$9E",
1139 "7 INS_$9F",
1140
1141 /* 0xA0 */
1142 "7 INS_$A0",
1143 "7 INS_$A1",
1144 "7 INS_$A2",
1145 "7 INS_$A3",
1146 "7 INS_$A4",
1147 "7 INS_$A5",
1148 "7 INS_$A6",
1149 "7 INS_$A7",
1150 "7 INS_$A8",
1151 "7 INS_$A9",
1152 "7 INS_$AA",
1153 "7 INS_$AB",
1154 "7 INS_$AC",
1155 "7 INS_$AD",
1156 "7 INS_$AE",
1157 "7 INS_$AF",
1158
1159 /* 0xB0 */
1160 "8 PUSHB[0]",
1161 "8 PUSHB[1]",
1162 "8 PUSHB[2]",
1163 "8 PUSHB[3]",
1164 "8 PUSHB[4]",
1165 "8 PUSHB[5]",
1166 "8 PUSHB[6]",
1167 "8 PUSHB[7]",
1168 "8 PUSHW[0]",
1169 "8 PUSHW[1]",
1170 "8 PUSHW[2]",
1171 "8 PUSHW[3]",
1172 "8 PUSHW[4]",
1173 "8 PUSHW[5]",
1174 "8 PUSHW[6]",
1175 "8 PUSHW[7]",
1176
1177 /* 0xC0 */
1178 "7 MDRP[G]",
1179 "7 MDRP[B]",
1180 "7 MDRP[W]",
1181 "6 MDRP[]",
1182 "8 MDRP[rG]",
1183 "8 MDRP[rB]",
1184 "8 MDRP[rW]",
1185 "7 MDRP[r]",
1186 "8 MDRP[mG]",
1187 "8 MDRP[mB]",
1188 "8 MDRP[mW]",
1189 "7 MDRP[m]",
1190 "9 MDRP[mrG]",
1191 "9 MDRP[mrB]",
1192 "9 MDRP[mrW]",
1193 "8 MDRP[mr]",
1194
1195 /* 0xD0 */
1196 "8 MDRP[pG]",
1197 "8 MDRP[pB]",
1198 "8 MDRP[pW]",
1199 "7 MDRP[p]",
1200 "9 MDRP[prG]",
1201 "9 MDRP[prB]",
1202 "9 MDRP[prW]",
1203 "8 MDRP[pr]",
1204 "9 MDRP[pmG]",
1205 "9 MDRP[pmB]",
1206 "9 MDRP[pmW]",
1207 "8 MDRP[pm]",
1208 "A MDRP[pmrG]",
1209 "A MDRP[pmrB]",
1210 "A MDRP[pmrW]",
1211 "9 MDRP[pmr]",
1212
1213 /* 0xE0 */
1214 "7 MIRP[G]",
1215 "7 MIRP[B]",
1216 "7 MIRP[W]",
1217 "6 MIRP[]",
1218 "8 MIRP[rG]",
1219 "8 MIRP[rB]",
1220 "8 MIRP[rW]",
1221 "7 MIRP[r]",
1222 "8 MIRP[mG]",
1223 "8 MIRP[mB]",
1224 "8 MIRP[mW]",
1225 "7 MIRP[m]",
1226 "9 MIRP[mrG]",
1227 "9 MIRP[mrB]",
1228 "9 MIRP[mrW]",
1229 "8 MIRP[mr]",
1230
1231 /* 0xF0 */
1232 "8 MIRP[pG]",
1233 "8 MIRP[pB]",
1234 "8 MIRP[pW]",
1235 "7 MIRP[p]",
1236 "9 MIRP[prG]",
1237 "9 MIRP[prB]",
1238 "9 MIRP[prW]",
1239 "8 MIRP[pr]",
1240 "9 MIRP[pmG]",
1241 "9 MIRP[pmB]",
1242 "9 MIRP[pmW]",
1243 "8 MIRP[pm]",
1244 "A MIRP[pmrG]",
1245 "A MIRP[pmrB]",
1246 "A MIRP[pmrW]",
1247 "9 MIRP[pmr]"
1248 };
1249
1250 #endif /* FT_DEBUG_LEVEL_TRACE */
1251
1252
1253 static
1254 const FT_Char opcode_length[256] =
1255 {
1256 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1257 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1258 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1259 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1260
1261 -1,-2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1262 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1263 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1264 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1265
1266 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1267 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1677
1678 /* NOTE: Because the last instruction of a program may be a CALL */
1679 /* which will return to the first byte *after* the code */
1680 /* range, we test for aIP <= Size, instead of aIP < Size. */
1681
1682 if ( aIP > range->size )
1683 {
1684 exc->error = FT_THROW( Code_Overflow );
1685 return FAILURE;
1686 }
1687
1688 exc->code = range->base;
1689 exc->codeSize = range->size;
1690 exc->IP = aIP;
1691 exc->curRange = aRange;
1692
1693 return SUCCESS;
1694 }
1695
1696
1697 /*
1698 *
1699 * Apple's TrueType specification at
1700 *
1701 * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM02/Chap2.html#order
1702 *
1703 * gives the following order of operations in instructions that move
1704 * points.
1705 *
1706 * - check single width cut-in (MIRP, MDRP)
1707 *
1708 * - check control value cut-in (MIRP, MIAP)
1709 *
1710 * - apply engine compensation (MIRP, MDRP)
1711 *
1712 * - round distance (MIRP, MDRP) or value (MIAP, MDAP)
1713 *
1714 * - check minimum distance (MIRP,MDRP)
1715 *
1716 * - move point (MIRP, MDRP, MIAP, MSIRP, MDAP)
1717 *
1718 * For rounding instructions, engine compensation happens before rounding.
1719 *
1720 */
1721
1722
1723 /**************************************************************************
1724 *
1725 * @Function:
1726 * Direct_Move
1727 *
1728 * @Description:
1729 * Moves a point by a given distance along the freedom vector. The
1730 * point will be `touched'.
1731 *
1732 * @Input:
1733 * point ::
1734 * The index of the point to move.
1735 *
1736 * distance ::
1737 * The distance to apply.
1738 *
1739 * @InOut:
1740 * zone ::
1741 * The affected glyph zone.
1742 *
1927 FT_UShort point,
1928 FT_F26Dot6 distance )
1929 {
1930 FT_UNUSED( exc );
1931
1932 zone->org[point].x = ADD_LONG( zone->org[point].x, distance );
1933 }
1934
1935
1936 static void
1937 Direct_Move_Orig_Y( TT_ExecContext exc,
1938 TT_GlyphZone zone,
1939 FT_UShort point,
1940 FT_F26Dot6 distance )
1941 {
1942 FT_UNUSED( exc );
1943
1944 zone->org[point].y = ADD_LONG( zone->org[point].y, distance );
1945 }
1946
1947 /**************************************************************************
1948 *
1949 * @Function:
1950 * Round_None
1951 *
1952 * @Description:
1953 * Does not round, but adds engine compensation.
1954 *
1955 * @Input:
1956 * distance ::
1957 * The distance (not) to round.
1958 *
1959 * compensation ::
1960 * The engine compensation.
1961 *
1962 * @Return:
1963 * The compensated distance.
1964 */
1965 static FT_F26Dot6
1966 Round_None( TT_ExecContext exc,
1967 FT_F26Dot6 distance,
1968 FT_F26Dot6 compensation )
1969 {
1970 FT_F26Dot6 val;
1971
1972 FT_UNUSED( exc );
1973
1974
1975 if ( distance >= 0 )
1976 {
1977 val = ADD_LONG( distance, compensation );
1978 if ( val < 0 )
1979 val = 0;
1980 }
1981 else
1982 {
1983 val = SUB_LONG( distance, compensation );
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