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Diffstat (limited to 'prnt/hpijs/halftoner.h')
| -rw-r--r-- | prnt/hpijs/halftoner.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/prnt/hpijs/halftoner.h b/prnt/hpijs/halftoner.h new file mode 100644 index 0000000..41acd15 --- /dev/null +++ b/prnt/hpijs/halftoner.h @@ -0,0 +1,209 @@ +/*****************************************************************************\ + halftoner.h : Interface for the Halftoner class + + Copyright (c) 1996 - 2001, Hewlett-Packard 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 Hewlett-Packard 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 |