Implemented RLE compression
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11441 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Pfeiffer
parent
e2bfe39dea
commit
5fc71589cf
@ -9,14 +9,15 @@
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#include <File.h>
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#include <memory>
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#include "PCL6.h"
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#include "DbgMsg.h"
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#include "DeltaRowCompression.h"
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#include "Halftone.h"
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#include "JobData.h"
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#include "PackBits.h"
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#include "PCL6.h"
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#include "PCL6Cap.h"
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#include "PCL6Config.h"
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#include "PrinterData.h"
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#include "PCL6Rasterizer.h"
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#include "UIDriver.h"
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@ -28,23 +29,6 @@ using namespace std;
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#define std
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#endif
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// Compression method configuration
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// Set to 0 to disable compression and to 1 to enable compression
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// Note compression takes place only if it takes less space than uncompressed data!
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// Run-Length-Encoding Compression
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// DO NOT ENABLE HP_M2TIFF_Compress seems to be broken!!!
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#define ENABLE_RLE_COMPRESSION 0
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// Delta Row Compression
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#define ENABLE_DELTA_ROW_COMPRESSION 1
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// Color depth for color printing.
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// Use either 1 or 8.
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// If 1 bit depth is used, the class Halftone is used for dithering
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// otherwise dithering is not performed.
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#define COLOR_DEPTH 1
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// DeltaRowStreamCompressor writes the delta row directly to the
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// in the contructor specified stream.
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class DeltaRowStreamCompressor : public AbstractDeltaRowCompressor
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@ -195,11 +179,10 @@ void PCL6Driver::writeBitmap(const uchar* buffer, int outSize, int rowSize, int
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#endif
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#if ENABLE_RLE_COMPRESSION
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HP_UInt32 compressedSize = 0;
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HP_M2TIFF_CalcCompression((HP_pCharHuge)buffer, outSize, &compressedSize);
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if (compressedSize < (uint32)dataSize) {
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int rleSize = pack_bits_size(buffer, outSize);
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if (rleSize < dataSize) {
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compressionMethod = PCL6Writer::kRLECompression;
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dataSize = compressedSize;
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dataSize = rleSize;
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}
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#endif
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@ -212,10 +195,10 @@ void PCL6Driver::writeBitmap(const uchar* buffer, int outSize, int rowSize, int
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endRasterGraphics();
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#if 0
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#if DISPLAY_COMPRESSION_STATISTICS
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fprintf(stderr, "Out Size %d %2.2f\n", (int)outSize, 100.0);
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#if ENABLE_RLE_COMPRESSION
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fprintf(stderr, "RLE Size %d %2.2f\n", (int)compressedSize, 100.0 * compressedSize / outSize);
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fprintf(stderr, "RLE Size %d %2.2f\n", (int)rleSize, 100.0 * rleSize / outSize);
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#endif
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#if ENABLE_DELTA_ROW_COMPRESSION
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fprintf(stderr, "Delta Row Size %d %2.2f\n", (int)deltaRowSize, 100.0 * deltaRowSize / outSize);
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@ -310,8 +293,10 @@ void PCL6Driver::rasterGraphics(
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// write data
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if (compressionMethod == PCL6Writer::kRLECompression) {
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// use RLE compression
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// uint32 compressedSize = 0;
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// HP_M2TIFF_Compress(fStream, 0, (HP_pCharHuge)buffer, bufferSize, &compressedSize);
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uchar *outBuffer = new uchar[dataSize];
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pack_bits(outBuffer, buffer, bufferSize);
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fWriter->Append(outBuffer, dataSize);
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delete outBuffer;
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return;
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} else if (compressionMethod == PCL6Writer::kDeltaRowCompression) {
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// use delta row compression
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@ -1,10 +1,12 @@
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/*
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* PCL6Cap.cpp
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* Copyright 1999-2000 Y.Takagi. All Rights Reserved.
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* COpyright 2003-2005 Michael Pfeiffer.
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*/
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#include "PrinterData.h"
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#include "PCL6Cap.h"
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#include "PCL6Config.h"
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#include "PrinterData.h"
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#define TO72DPI(a) (a * 72.0f / 600.0f)
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@ -150,8 +152,11 @@ const PrintStyleCap duplex("Duplex", false, JobData::kDuplex);
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const ProtocolClassCap pc1_1("PCL 6 Protocol Class 1.1", true, kProtocolClass1_1,
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"Protocol Class 1.1\n"
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"* No compression\n"
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"* RLE compression (not implemented yet)");
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"* No compression"
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#if ENABLE_RLE_COMPRESSION
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"\n* RLE compression"
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#endif
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);
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const ProtocolClassCap pc2_0("PCL 6 Protocol Class 2.0", false, kProtocolClass2_0,
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"Protocol Class 2.0\n"
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"* Additonal Paper Source: Third Cassette\n"
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@ -159,7 +164,10 @@ const ProtocolClassCap pc2_0("PCL 6 Protocol Class 2.0", false, kProtocolClass2_
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const ProtocolClassCap pc2_1("PCL 6 Protocol Class 2.1", false, kProtocolClass2_1,
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"Protocol Class 2.1\n"
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"* Additional Paper Format: B5\n"
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"* Delta Row Compression");
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#if ENABLE_DELTA_ROW_COMPRESSION
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"* Delta Row Compression"
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#endif
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);
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const ProtocolClassCap pc3_0("PCL 6 Protocol Class 3.0", false, kProtocolClass3_0,
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"Protocol Class 3.0");
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28
src/add-ons/print/drivers/pcl6/PCL6Config.h
Normal file
28
src/add-ons/print/drivers/pcl6/PCL6Config.h
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@ -0,0 +1,28 @@
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/*
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* PCL6Config.cpp
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* Copyright 2005 Michael Pfeiffer.
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*/
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#ifndef _PCL6_CONFIG
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#define _PCL6_CONFIG
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// Compression method configuration
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// Set to 0 to disable compression and to 1 to enable compression
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// Note compression takes place only if it takes less space than uncompressed data!
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// Run-Length-Encoding Compression
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#define ENABLE_RLE_COMPRESSION 1
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// Delta Row Compression
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#define ENABLE_DELTA_ROW_COMPRESSION 1
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// Color depth for color printing.
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// Use either 1 or 8.
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// If 1 bit depth is used, the class Halftone is used for dithering
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// otherwise dithering is not performed.
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#define COLOR_DEPTH 1
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#define DISPLAY_COMPRESSION_STATISTICS 0
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#endif
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