#include "StdAfx.h"
#include "FrameBufferController.h"


CFrameBufferController::CFrameBufferController(void)
{
	m_nCameraIdx = 0;
}

CFrameBufferController::~CFrameBufferController(void)
{
}

void CFrameBufferController::ClearBuffer()
{
	m_MultiBuffer.ClearBuffer();
}

BOOL CFrameBufferController::CreateBuffer(int iCamera, int nFrameWidth, int nFrameHeight, int nFrameCnt, int nBufferCnt)
{
	m_nCameraIdx = iCamera;
	m_MultiBuffer.CreateMultiBuff(nBufferCnt, nFrameWidth, nFrameHeight, nFrameCnt);

	return TRUE;
}

LPBYTE	CFrameBufferController::GetFrameBuferHeader(int iScan, int iFrame)
{
	if (CheckProcFrame(iFrame) == FALSE)
	{
		return NULL;
	}
	if (m_MultiBuffer.GetBuffCount() <= iScan)
	{
		return NULL;
	}

	return m_MultiBuffer.GetMultiBuffData(iScan) + (ULONG_PTR)(m_MultiBuffer.GetFrameSize()*iFrame);
}

BOOL CFrameBufferController::SetFrameBuffer(int iScan, int iFrame, LPBYTE lpBuffer)
{
	LPBYTE lpSource = GetFrameBuferHeader(iScan, iFrame);
	if (lpSource == NULL)
		return FALSE;

	memcpy(lpSource, lpBuffer, m_MultiBuffer.GetFrameWidth() * m_MultiBuffer.GetFrameHeight());

	return TRUE;
}

BOOL CFrameBufferController::CheckProcFrame(int iFrame)
{
	if (iFrame < 0 || iFrame >= m_MultiBuffer.GetFrameCount())
		return FALSE;
	return TRUE;
}

LPBYTE CFrameBufferController::GetFrameHeaderLine(int iScan, int nLine /*= 0*/)
{
	LPBYTE		lpBuf = NULL;

	int			iStartLineInOrgFrame = nLine / GetFrameHeight();
	int			iStartLinePositionInOrgFrame = nLine % GetFrameHeight();

	lpBuf = GetFrameBuferHeader(iScan, iStartLineInOrgFrame);
	if (lpBuf == NULL)
		return NULL;

	return lpBuf + (GetFrameWidth()*iStartLinePositionInOrgFrame);
}

LPBYTE CFrameBufferController::GetFrameHeader_Line_FromStartLine(int iScan, int iFrame, int nStartLine /*= 0*/)
{
	LPBYTE		lpBuf = NULL;

	int			iStartLineInOrgFrame = nStartLine / GetFrameHeight();
	int			iStartLinePositionInOrgFrame = nStartLine % GetFrameHeight();

	//LogDisplayMessage(_T("GetFrameHeader_Line_FromStartLine: Frame %d, start line %d, org Frame %d, position in org frame %d"), iFrame, nStartLine, iStartLineInOrgFrame, iStartLinePositionInOrgFrame);
	//Sleep(10);

	lpBuf = GetFrameBuferHeader(iScan, iStartLineInOrgFrame);
	if (lpBuf == NULL)
		return NULL;

	return lpBuf + (GetFrameWidth()*iStartLinePositionInOrgFrame);
}