OpenFPGA/vpr7_x2p/printhandler/SRC/TC_Common/TC_MinGrid.h

117 lines
3.6 KiB
C++

//===========================================================================//
// Purpose : Declaration and inline definitions for a TC_MinGrid minimum grid
// singleton class. This class represents a minimum unit grid and
// handles various transformations between floating-point and
// integer formats.
//
// Inline methods include:
// - GetGrid
// - GetUnits
// - GetMagnitude
// - GetPrecision
//
//===========================================================================//
#ifndef TC_MIN_GRID_H
#define TC_MIN_GRID_H
// Define a default minumum grid
#define TC_MIN_GRID_DEF 0.001
//===========================================================================//
// Purpose : Class declaration
// Author : Jeff Rudolph
//---------------------------------------------------------------------------//
// Version history
// 05/30/12 jeffr : Original
//===========================================================================//
class TC_MinGrid_c
{
public:
static void NewInstance( void );
static void DeleteInstance( void );
static TC_MinGrid_c& GetInstance( void );
void SetGrid( double minGrid );
double GetGrid( void ) const;
unsigned int GetUnits( void ) const;
unsigned int GetMagnitude( void ) const;
unsigned int GetPrecision( void ) const;
double IntToFloat( int i ) const;
double UnsignedIntToFloat( unsigned int i ) const;
double LongIntToFloat( long int li ) const;
int FloatToInt( double f ) const;
unsigned int FloatToUnsignedInt( double f ) const;
long int FloatToLongInt( double f ) const;
double SnapToGrid( double f ) const;
double SnapToGridCeil( double f ) const;
bool IsOnGrid( double f, double* pf = 0 ) const;
protected:
TC_MinGrid_c( void );
~TC_MinGrid_c( void );
private:
// The min grid value is used to define the units, precision, and
// magnitude values. The following table shows several example min grid
// values and asso. units, precision, and magnitude values.
//
// grid 0.1 0.01 0.001 0.025
// ----- ----- ----- -----
// units 10 100 1000 40
// magnitude 10 100 1000 1000
// precision 1 2 3 3
double grid_; // Define min (manufacturing or data) grid
unsigned int units_; // Define database units per grid
unsigned int magnitude_; // Define database magnitude per units
unsigned int precision_; // Define format precision per grid
static TC_MinGrid_c* pinstance_; // Define ptr for a singleton instance
};
//===========================================================================//
// Purpose : Class inline definition(s)
// Author : Jeff Rudolph
//---------------------------------------------------------------------------//
// Version history
// 05/30/12 jeffr : Original
//===========================================================================//
inline double TC_MinGrid_c::GetGrid(
void ) const
{
return( this->grid_ );
}
//===========================================================================//
inline unsigned int TC_MinGrid_c::GetUnits(
void ) const
{
return( this->units_ );
}
//===========================================================================//
inline unsigned int TC_MinGrid_c::GetPrecision(
void ) const
{
return( this->precision_ );
}
//===========================================================================//
inline unsigned int TC_MinGrid_c::GetMagnitude(
void ) const
{
return( this->magnitude_ );
}
#endif