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/*****************************************************************************\
halftoner.h : Interface for the Halftoner class
Copyright (c) 1996 - 2015, HP Co.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of HP nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PATENT INFRINGEMENT; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\*****************************************************************************/
#ifndef APDK_HALFTONER_H
#define APDK_HALFTONER_H
//===========================================================================
//
// Filename : Halftoner.h
//
// Module : Open Source Imaging
//
// Description : This file contains the class declaration for Imaging.
//
//===========================================================================
#ifndef HPTYPES_H
#include "hptypes.h"
#endif
APDK_BEGIN_NAMESPACE
// used to encourage consistent ordering of color planes
#define K 0
#define C 1
#define M 2
#define Y 3
#define Clight 4
#define Mlight 5
#define RANDSEED 77
////////////////////////////////////////////////////////////////////////////
// UMPQUA
//
// Encapsulation of buffers and data needed by Halftoner color-matching and
// halftoning code.
class Halftoner : public Processor
{
public:
Halftoner(SystemServices* pSys,
PrintMode* pPM,
unsigned int iInputWidth,
unsigned int iNumRows[], // for mixed-res cases
unsigned int HiResFactor, // when base-res is multiple of 300
BOOL matrixbased
);
virtual ~Halftoner();
virtual BOOL Process(RASTERDATA* pbyInputKRGBRaster=NULL) = 0;
virtual void Flush();
DRIVER_ERROR constructor_error;
virtual void Restart(); // set up for new page or blanks
// items required by Processor
unsigned int GetOutputWidth(COLORTYPE rastercolor);
unsigned int GetMaxOutputWidth(COLORTYPE rastercolor);
BYTE* NextOutputRaster(COLORTYPE rastercolor);
BOOL LastPlane();
BOOL FirstPlane();
unsigned int PlaneSize()
{ return OutputWidth[iColor] / 8 + (OutputWidth[iColor] % 8); }
unsigned int ColorPlaneCount;
unsigned int InputWidth; // # of pixels input per colorplane
unsigned int OutputWidth[MAXCOLORPLANES]; // # of pixels output per colorplane
unsigned char ColorDepth[MAXCOLORPLANES];
// how many rows needed relative to base resolution -- all 1 unless mixed-res
unsigned char NumRows[MAXCOLORPLANES];
// color plane data
// for current interface, we must maintain mapping of
// 0=K, 1=C, 2=M, 3=Y
BYTE* ColorPlane[MAXCOLORPLANES][MAXCOLORROWS][MAXCOLORDEPTH];
unsigned int StartPlane; // since planes are ordered KCMY, if no K, this is 1
unsigned int EndPlane; // usually Y, could be Mlight
unsigned int ResBoost;
protected:
SystemServices* pSS; // needed for memory management
void FreeBuffers();
HPBool Forward16PixelsNonWhite(HPBytePtr inputPtr)
{
// return ((*(HPUInt32Ptr)(inputPtr) != 0x0) || (*(((HPUInt32Ptr)(inputPtr)) + 1) != 0x0) ||
// (*(((HPUInt32Ptr)(inputPtr)) + 2) != 0x0) || (*(((HPUInt32Ptr)(inputPtr)) + 3) != 0x0));
for (int i=0; i < 16; i++)
{
if ((*inputPtr++) != 0)
{
return TRUE;
}
}
return FALSE;
}
HPBool Backward16PixelsNonWhite(HPBytePtr inputPtr)
{
// return ((*(HPUInt32Ptr)(inputPtr) != 0x0) || (*(((HPUInt32Ptr)(inputPtr)) - 1) != 0x0) ||
// (*(((HPUInt32Ptr)(inputPtr)) - 2) != 0x0) || (*(((HPUInt32Ptr)(inputPtr)) - 3) != 0x0));
for (int i=0; i < 16; i++)
{
if ((*inputPtr--) !=0 )
{
return TRUE;
}
}
return FALSE;
}
short* ErrBuff[6];
short nNextRaster;
short fRasterOdd;
unsigned char* fBlackFEDResPtr;
unsigned char* fColorFEDResPtr;
unsigned int AdjustedInputWidth; // InputWidth padded to be divisible by 8
void PixelMultiply(unsigned char* buffer, unsigned int width, unsigned int factor);
unsigned int iColor, iRow, iPlane;
unsigned int PlaneCount(); // tells how many layers (colors,hifipe,multirow)
BOOL started;
BYTE* tempBuffer;
BYTE* tempBuffer2;
BYTE* originalKData;
unsigned int oddbits;
void CleanOddBits(unsigned int iColor, unsigned int iRow);
HPUInt32 hold_random;
inline BYTE RandomNumber()
{
hold_random = (hold_random * 214013) + 2531011;
return (BYTE)((hold_random >> 16) & 0xFF);
} //RandomNumber
typedef struct THTDitherParms
{
HPUInt16 fNumPix; // Dirty Pixels to be dithered
HPBytePtr fInput; // Pixel array to dither
HPBytePtr fOutput1; // Output raster binary & hifipe plane 1
HPBytePtr fOutput2; // Output raster hifipe plane 2 (2-bit)
HPBytePtr fOutput3; // Output raster hifipe plane 3 (3-bit)
HPCBytePtr fFEDResPtr; // brkpnt table
kSpringsErrorTypePtr fErr; // Current error buffer
HPInt16 fRasterEvenOrOdd;// Serpentine (Forward/Backward)
HPBool fSymmetricFlag; // Are we symmetric
HPBool fHifipe; // Are we doing Hifipe?
HPUInt16 fMatrixRowSize;
HPBytePtr fMatrixV1;
HPUInt16 fDitherCellOffset;
HPUInt16 fSqueezeOffset;
HPCInt16Ptr fWeightTablePtr; // Error Diffusion threshold table
HPInt16 fOffsetPick; // Random# offset for threshold
HPBool fVerticalExpFlag; // Are we vertically expanding
} THTDitherParms, ENVPTR(THTDitherParmsPtr);
BOOL usematrix;
DRIVER_ERROR HTMATRIXHI_KCMY(THTDitherParmsPtr ditherParmsPtr, HPUInt16 count);
}; //Halftoner
APDK_END_NAMESPACE
#endif //APDK_HALFTONER_H
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