xref: /haiku/src/add-ons/print/drivers/pcl6/PCL6Rasterizer.h (revision e081b9cd7ef168847177a491da56ccb1c69d57cb)

/*
** PCL6Rasterizer.h
** Copyright 2005, Michael Pfeiffer, laplace@users.sourceforge.net.
** All rights reserved.
** Distributed under the terms of the MIT License.
*/
#ifndef _PCL6_RASTERIZER_H
#define _PCL6_RASTERIZER_H


#include "Rasterizer.h"


class PCL6Rasterizer : public Rasterizer
{
public:
						PCL6Rasterizer(Halftone* halftone)
						:
						Rasterizer(halftone),
						fOutBuffer(NULL),
						fOutBufferSize(0)
						{}

						~PCL6Rasterizer()
						{
							delete[] fOutBuffer;
							fOutBuffer = NULL;
						}

			void		SetOutBufferSize(int size)
						{
							fOutBufferSize = size;
						}
			int			GetOutBufferSize()
						{
							return fOutBufferSize;
						}
			uchar*		GetOutBuffer()
						{
							return fOutBuffer;
						}

	virtual	void		InitializeBuffer()
						{
							fOutBuffer = new uchar[fOutBufferSize];
						}

	virtual	int			GetOutRowSize() = 0;

private:
			uchar*		fOutBuffer;
			int			fOutBufferSize;
};


class MonochromeRasterizer : public PCL6Rasterizer
{
public:
						MonochromeRasterizer(Halftone* halftone);

			void		InitializeBuffer();

			int			GetOutRowSize()
						{
							return fOutRowSize;
						}

			const void*	RasterizeLine(int x, int y,
							const ColorRGB32Little* source);

private:
			int			fWidthByte;
			int			fOutRowSize;
			int			fPadBytes;
			int			fOutSize;
			uchar*		fOutBuffer;
			uchar*		fCurrentLine;
};


// Output format RGB 8bit per channel
class ColorRGBRasterizer : public PCL6Rasterizer
{
public:
						ColorRGBRasterizer(Halftone* halftone);

			void		InitializeBuffer();

			int			GetOutRowSize()
						{
							return fOutRowSize;
						}

			const void*	RasterizeLine(int x, int y,
							const ColorRGB32Little* source);

private:
			int			fWidthByte;
			int			fOutRowSize;
			int			fPadBytes;
			uchar*		fCurrentLine;
};


typedef uchar* PlaneBuffer;


// Output format: RGB 1bit per channel
// Class Halftone is used for dithering
class ColorRasterizer : public PCL6Rasterizer
{
public:
						ColorRasterizer(Halftone* halftone);

						~ColorRasterizer();

			void		InitializeBuffer();

			int			GetOutRowSize()
						{
							return fOutRowSize;
						}

			const void*	RasterizeLine(int x, int y,
							const ColorRGB32Little* source);

private:
			void		MergePlaneBuffersToCurrentLine();

			int			fWidthByte;
			int			fOutRowSize;
			int			fPadBytes;
			uchar*		fCurrentLine;

			int			fPlaneBufferSize;
			PlaneBuffer	fPlaneBuffers[3];
};

#endif // _PCL6_RASTERIZER_H