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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 HALFTONER_H
#define HALFTONER_H
////////////////////////////////////////////////////////////////////////////
// UMPQUA
//
// Encapsulation of buffers and data needed by Halftoner color-matching and
// halftoning code.
class Halftoner : public Processor
{
public:
Halftoner(PrintMode* pPM,
unsigned int iInputWidth,
int iNumRows[], // for mixed-res cases
int HiResFactor, // when base-res is multiple of 300
bool matrixbased
);
virtual ~Halftoner();
bool Process(RASTERDATA* pbyInputKRGBRaster);
void Flush();
void Restart(); // set up for new page or blanks
// items required by Processor
unsigned int GetMaxOutputWidth();
bool NextOutputRaster(RASTERDATA &next_raster);
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
int ResBoost;
private:
void Interpolate(const uint32_t *start,const unsigned long i,
unsigned char r,unsigned char g,unsigned char b,
unsigned char *blackout, unsigned char *cyanout,
unsigned char *magentaout, unsigned char *yellowout, bool);
void FreeBuffers();
bool Forward16PixelsNonWhite(BYTE * inputPtr)
{
// return ((*(uint32_t *)(inputPtr) != 0x0) || (*(((uint32_t *)(inputPtr)) + 1) != 0x0) ||
// (*(((uint32_t *)(inputPtr)) + 2) != 0x0) || (*(((uint32_t *)(inputPtr)) + 3) != 0x0));
for (int i=0; i < 16; i++)
{
if ((*inputPtr++) != 0)
{
return true;
}
}
return false;
}
bool Backward16PixelsNonWhite(BYTE * inputPtr)
{
// return ((*(uint32_t *)(inputPtr) != 0x0) || (*(((uint32_t *)(inputPtr)) - 1) != 0x0) ||
// (*(((uint32_t *)(inputPtr)) - 2) != 0x0) || (*(((uint32_t *)(inputPtr)) - 3) != 0x0));
for (int i=0; i < 16; i++)
{
if ((*inputPtr--) !=0 )
{
return true;
}
}
return false;
}
unsigned int getOutputWidth();
short* ErrBuff[6];
short nNextRaster;
short fRasterOdd;
const unsigned char* fBlackFEDResPtr;
const 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);
uint32_t hold_random;
inline BYTE RandomNumber()
{
hold_random = (hold_random * 214013) + 2531011;
return (BYTE)((hold_random >> 16) & 0xFF);
} //RandomNumber
typedef struct THTDitherParms
{
unsigned short fNumPix; // Dirty Pixels to be dithered
BYTE * fInput; // Pixel array to dither
BYTE * fOutput1; // Output raster binary & hifipe plane 1
BYTE * fOutput2; // Output raster hifipe plane 2 (2-bit)
BYTE * fOutput3; // Output raster hifipe plane 3 (3-bit)
const BYTE * fFEDResPtr; // brkpnt table
short * fErr; // Current error buffer
short fRasterEvenOrOdd;// Serpentine (Forward/Backward)
bool fSymmetricFlag; // Are we symmetric
bool fHifipe; // Are we doing Hifipe?
unsigned short fMatrixRowSize;
BYTE * fMatrixV1;
unsigned short fDitherCellOffset;
unsigned short fSqueezeOffset;
short * fWeightTablePtr; // Error Diffusion threshold table
short fOffsetPick; // Random# offset for threshold
bool fVerticalExpFlag; // Are we vertically expanding
} THTDitherParms, *THTDitherParmsPtr;
bool usematrix;
DRIVER_ERROR HTMATRIXHI_KCMY(THTDitherParmsPtr ditherParmsPtr, unsigned short count);
BYTE HPRand() // normalize to 5..79
{ BYTE b=RandomNumber() % 74; b+= 5; return b; }
void HTEDiffOpen (THTDitherParmsPtr ditherParmsPtr,
unsigned short count);
THTDitherParms fDitherParms[6];
THTDitherParmsPtr ditherParms;
short tone;
short *diffusionErrorPtr;
short tmpShortStore;
BYTE rasterByte1, rasterByte2, rasterByte3;
BYTE level;
short pixelCount;
short thValue;
short *errPtr;
unsigned short numLoop;
BYTE *inputPtr;
BYTE *outputPtr1;
BYTE *outputPtr2;
BYTE *outputPtr3;
const BYTE *fedResTbl;
const BYTE *fedResPtr;
bool symmetricFlag;
bool doNext8Pixels;
bool hifipe;
void BACKWARD_FED(short thresholdValue, unsigned int bitMask);
void FORWARD_FED(short thresholdValue, unsigned int bitMask);
}; // Halftoner
#endif // HALFTONER_H
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