mirror of
https://github.com/jrk/QuickDraw.git
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48 lines
1.4 KiB
OpenEdge ABL
48 lines
1.4 KiB
OpenEdge ABL
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UNIT GrafUtil;
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INTERFACE
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USES {$U obj:QuickDraw } QuickDraw;
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TYPE Fixed = LongInt;
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Int64Bit = RECORD
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hiLong: LongInt;
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loLong: LongInt;
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END;
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FUNCTION BitAnd (long1,long2: LongInt): LongInt;
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FUNCTION BitOr (long1,long2: LongInt): LongInt;
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FUNCTION BitXor (long1,long2: LongInt): LongInt;
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FUNCTION BitNot (long: LongInt): LongInt;
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FUNCTION BitShift (long: LongInt; count: INTEGER): LongInt;
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FUNCTION BitTst (bytePtr: QDPtr; bitNum: LongInt): BOOLEAN;
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PROCEDURE BitSet (bytePtr: QDPtr; bitNum: LongInt);
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PROCEDURE BitClr (bytePtr: QDPtr; bitNum: LongInt);
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PROCEDURE LongMul (a,b: LongInt; VAR dst: Int64Bit);
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FUNCTION FixMul (a,b: Fixed): Fixed;
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FUNCTION FixRatio (numer,denom: INTEGER): Fixed;
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FUNCTION HiWord (x: Fixed): INTEGER;
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FUNCTION LoWord (x: Fixed): INTEGER;
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FUNCTION FixRound (x: Fixed): INTEGER;
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IMPLEMENTATION
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FUNCTION BitAnd; EXTERNAL;
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FUNCTION BitOr; EXTERNAL;
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FUNCTION BitXor; EXTERNAL;
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FUNCTION BitNot; EXTERNAL;
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FUNCTION BitShift; EXTERNAL;
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FUNCTION BitTst; EXTERNAL;
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PROCEDURE BitSet; EXTERNAL;
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PROCEDURE BitClr; EXTERNAL;
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PROCEDURE LongMul; EXTERNAL;
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FUNCTION FixMul; EXTERNAL;
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FUNCTION FixRatio; EXTERNAL;
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FUNCTION HiWord; EXTERNAL;
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FUNCTION LoWord; EXTERNAL;
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FUNCTION FixRound; EXTERNAL;
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END. { of unit }
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