Utils/parkgrab/cross.cpp

@@ -0,0 +1,158 @@
+/*=========================================================================
+
+	CROSS.CPP	
+
+	Author:  Gary Liddon @ Climax
+	Created:
+	Project: Diablo Playstation Conversion
+	Purpose: Find A Crosshair on a frame
+
+	Copyright (c) 1996 Director's Cut Ltd.
+
+===========================================================================*/
+
+/*----------------------------------------------------------------------
+	Includes
+	-------- */
+
+/*	Std Lib
+	------- */
+
+/*	STL
+	--- */
+
+/*	Glib
+	---- */
+
+/*	Local
+	----- */
+#include "cross.h"
+
+/*----------------------------------------------------------------------
+	Structure defintions
+	-------------------- */
+using namespace std;
+
+/*----------------------------------------------------------------------
+	Tyepdefs && Defines
+	------------------- */
+
+/*----------------------------------------------------------------------
+	Function Prototypes
+	------------------- */
+
+/*----------------------------------------------------------------------
+	Vars
+	---- */
+
+/*----------------------------------------------------------------------
+	Classes
+	------- */
+
+
+/*----------------------------------------------------------------------
+	Description:
+		Find a cross hair in this frame for animation offset and store it
+		into member vars x and y.
+
+	Returns:
+		True if a cross hair is found
+  ---------------------------------------------------------------------- */
+bool CROSS_RES::FindCrossHair(
+							  Frame const & Fr,	/* Frame we're looking for a cross-hair in */
+							  u8 CrossCol		/* Pixel value of cross hair we're looking for */
+							  )
+{
+	u8 const *	FrmData;
+	int *		CountCol=NULL;
+	int *		CountRow=NULL;
+
+	int			Width;
+	int			Height;
+	bool		RetVal;
+
+	RetVal=false;
+
+	Width=Fr.GetWidth();
+	Height=Fr.GetHeight();
+
+	if (Width && Height)
+		{
+		int Col;
+		int Row;
+
+		if (!(CountCol=new int[Width]))
+			{
+			cout<<"Width is "<<Width<<endl;
+			GObject::Error(ERM_OUTOFMEM);
+			}
+
+		if (!(CountRow=new int[Height]))
+			{
+			cout<<"Height is "<<Width<<endl;
+			GObject::Error(ERM_OUTOFMEM);
+			}	
+
+		memset(CountRow,0,sizeof(int)*Height);
+		memset(CountCol,0,sizeof(int)*Width);
+
+		FrmData=Fr.SeeData();
+
+		for (int yy=0;yy<Height;yy++)
+			{
+			u8 const * ThisRow=&FrmData[yy*Width];
+
+			for (int xx=0;xx<Width;xx++)
+				{
+				if (ThisRow[xx] == CrossCol)
+					{
+					CountRow[yy]++;
+					CountCol[xx]++;
+					}
+				}
+			}
+
+		Col=FindLargestIndex(CountCol,Width);
+		Row=FindLargestIndex(CountRow,Height);
+
+		if ((Col != -1) && (Row != -1))
+			{
+			x=Col;
+			y=Row;
+			RetVal=true;
+			}
+		}
+
+	if (CountCol)
+		delete CountCol;
+
+	if (CountRow)
+		delete CountRow;
+
+	return(RetVal);
+}
+
+/*----------------------------------------------------------------------
+	Description:
+	Returns:
+  ---------------------------------------------------------------------- */
+int CROSS_RES::FindLargestIndex(int * CountCol,int Width)
+{
+	int		LargestIndex=-1;
+	int		Largest=0;
+
+	for (int f=0;f<Width;f++)
+		{
+		if (CountCol[f] > Largest)
+			{
+			Largest=CountCol[f];
+			LargestIndex=f;
+			}
+		}
+
+	return(LargestIndex);
+}
+
+/*===========================================================================
+ end */
+