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