Initial

mdiwin/PWARP.HPP

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+#ifndef _PERSPECTIVEWARP_HPP_
+#define _PERSPECTIVEWARP_HPP_
+#include <mdiwin/main.hpp>
+
+class PerspectiveWarp
+{
+public:
+	enum Type{Incremental,None};
+	enum Operation{Add,Subtract,Multiply,Divide};
+	PerspectiveWarp(WORD width,WORD height,UHUGE *hpImageInvert,
+		double wRow,double wCol);
+	PerspectiveWarp(WORD width,WORD height,
+		double wRow,double wCol,
+		Operation colOp,double colIncr,
+		Operation rowOp,double rowIncr,UHUGE *hpImageInvert);
+	~PerspectiveWarp();
+	HGLOBAL performPerspectiveWarp(void);
+	void cancelThread(void);
+	WORD isCancelled(void)const;
+private:
+	HGLOBAL incrementalWarp(void);
+	HGLOBAL nonIncrementalWarp(void);
+	WORD yieldTask(void)const;
+	WORD emergencyCleanup(HGLOBAL hGlobalSource,HGLOBAL hGlobal)const;
+
+  double mwRow, mwCol;
+	double mRowIncr, mColIncr;
+	Operation mRowOp, mColOp;
+	WORD mWidth, mHeight;
+	WORD mIsInThread;
+	Type mWarpType;
+	UHUGE *mhpImageInvert;
+};
+
+inline
+void PerspectiveWarp::cancelThread(void)
+{
+	mIsInThread=FALSE;
+}
+
+inline
+WORD PerspectiveWarp::isCancelled(void)const
+{
+	return !mIsInThread;
+}
+#endif