CMSSW Reference Manual

SiPixelDbItem::Packing::Packing	(	int	noise_w,
		int	pedestal_w,
		int	gain_w,
		int	status_w
	)

Definition at line 79 of file SiPixelDbItem.cc.

References GenMuonPlsPt100GeV_cfg::cout, lat::endl(), gain_mask, gain_shift, noise_mask, noise_shift, pedestal_mask, pedestal_shift, status_mask, and status_shift.

00081   : noise_width(noise_w), pedestal_width(pedestal_w), status_width(status_w) 
00082 {
00083   // Constructor: pre-computes masks and shifts from field widths
00084   // Order of fields (from right to left) is
00085   // noise, pedestal, gain, status count.
00086   
00087   if ( noise_w+pedestal_w+gain_w+status_w != 32) {
00088     std::cout << std::endl << "Error in SiPixelDbItem::Packing constructor:" 
00089               << "sum of field widths != 32" << std::endl;
00090     // TO DO: throw an exception?
00091   }
00092 
00093   // Fields are counted from right to left!
00094   
00095   noise_shift     = 0;
00096   pedestal_shift  = noise_shift + noise_w;
00097   gain_shift    = pedestal_shift + pedestal_w;
00098   status_shift     = gain_shift + gain_w;
00099 
00100   // Ensure the complement of the correct 
00101   // number of bits:
00102   PackedPixDbType zero32 = 0;  // 32-bit wide
00103 
00104   noise_mask     = ~(~zero32 << noise_w);
00105   pedestal_mask  = ~(~zero32 << pedestal_w);
00106   gain_mask    = ~(~zero32 << gain_w);
00107   status_mask     = ~(~zero32 << status_w);
00108 }

PackedPixDbType SiPixelDbItem::Packing::gain_mask

Definition at line 59 of file SiPixelDbItem.h.

Referenced by SiPixelDbItem::gain(), Packing(), and SiPixelDbItem::setGain().

int SiPixelDbItem::Packing::gain_shift

Definition at line 55 of file SiPixelDbItem.h.

Referenced by SiPixelDbItem::gain(), Packing(), SiPixelDbItem::set(), and SiPixelDbItem::setGain().

PackedPixDbType SiPixelDbItem::Packing::noise_mask

Definition at line 60 of file SiPixelDbItem.h.

Referenced by SiPixelDbItem::noise(), Packing(), and SiPixelDbItem::setNoise().

int SiPixelDbItem::Packing::noise_shift

Definition at line 56 of file SiPixelDbItem.h.

Referenced by SiPixelDbItem::noise(), Packing(), SiPixelDbItem::set(), and SiPixelDbItem::setNoise().

int SiPixelDbItem::Packing::noise_width

Definition at line 62 of file SiPixelDbItem.h.

PackedPixDbType SiPixelDbItem::Packing::pedestal_mask

Definition at line 61 of file SiPixelDbItem.h.

Referenced by Packing(), SiPixelDbItem::pedestal(), and SiPixelDbItem::setPedestal().

int SiPixelDbItem::Packing::pedestal_shift

Definition at line 57 of file SiPixelDbItem.h.

Referenced by Packing(), SiPixelDbItem::pedestal(), SiPixelDbItem::set(), and SiPixelDbItem::setPedestal().

int SiPixelDbItem::Packing::pedestal_width

Definition at line 63 of file SiPixelDbItem.h.

PackedPixDbType SiPixelDbItem::Packing::status_mask

Definition at line 58 of file SiPixelDbItem.h.

Referenced by Packing(), SiPixelDbItem::setStatus(), and SiPixelDbItem::status().

int SiPixelDbItem::Packing::status_shift

Definition at line 54 of file SiPixelDbItem.h.

Referenced by Packing(), SiPixelDbItem::set(), SiPixelDbItem::setStatus(), and SiPixelDbItem::status().

int SiPixelDbItem::Packing::status_width

Definition at line 64 of file SiPixelDbItem.h.

SiPixelDbItem::Packing Class Reference

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Data Documentation


Public Member Functions
	Packing (int noise_w, int pedestal_w, int gain_w, int status_w)
Public Attributes
PackedPixDbType	gain_mask
int	gain_shift
PackedPixDbType	noise_mask
int	noise_shift
int	noise_width
PackedPixDbType	pedestal_mask
int	pedestal_shift
int	pedestal_width
PackedPixDbType	status_mask
int	status_shift
int	status_width