--- a/toolsandutils/e32tools/elf2e32/source/pagedcompress.cpp Fri Jun 25 18:24:47 2010 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,334 +0,0 @@
-// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
-// All rights reserved.
-// This component and the accompanying materials are made available
-// under the terms of "Eclipse Public License v1.0"
-// which accompanies this distribution, and is available
-// at the URL "http://www.eclipse.org/legal/epl-v10.html".
-//
-// Initial Contributors:
-// Nokia Corporation - initial contribution.
-//
-// Contributors:
-//
-// Description:
-// byte_pair.cpp
-//
-//
-
-#include <malloc.h>
-#include <string.h>
-#include <stdlib.h>
-#include "h_utl.h"
-#include "h_ver.h"
-#include <stdio.h>
-
-#include <fstream>
-#ifdef __TOOLS2__
-#include <sstream>
-#else
-#include <strstream.h>
-#endif
-
-#include <string>
-#include <vector>
-#include <cassert>
-#include <iostream>
-#ifndef __LINUX__
-#include <io.h>
-#endif
-#include <time.h>
-
-#include "byte_pair.h"
-
-#define PAGE_SIZE 4096
-
-//#define __TEST_ONLY__
-
-
-typedef struct IndexTableItemTag
-{
- TUint16 iSizeOfCompressedPageData; // pointer to an array TUint16[NumberOfPages]
- TUint8 *iCompressedPageData; // pointer to an array TUint8*. Each elemet of
- // this array point a compressed Page data
-}IndexTableItem;
-
-
-typedef struct IndexTableHeaderTag
-{
- TInt iSizeOfData; // Includes the index and compressed pages
- TInt iDecompressedSize;
- TUint16 iNumberOfPages;
-} IndexTableHeader;
-
-
-class CBytePairCompressedImage
-{
- public:
- static CBytePairCompressedImage* NewLC(TUint16 aNumberOfPages, TInt aSize);
-
- ~CBytePairCompressedImage();
-
- void AddPage(TUint16 aPageNum, TUint8 * aPageData, TUint16 aPageSize);
- int GetPage(TUint16 aPageNum, TUint8 * aPageData);
- void WriteOutTable(std::ofstream &os);
- int ReadInTable(std::ifstream &is, TUint & aNumberOfPages);
-
- private:
- TInt ConstructL( TUint16 aNumberOfPages, TInt aSize);
- CBytePairCompressedImage();
-
- private:
- IndexTableHeader iHeader;
- IndexTableItem* iPages;
- TUint8* iOutBuffer;
-
-};
-
-
-CBytePairCompressedImage::CBytePairCompressedImage()
-{
-
-}
-
-
-CBytePairCompressedImage* CBytePairCompressedImage::NewLC(TUint16 aNumberOfPages, TInt aSize)
-{
- CBytePairCompressedImage* self = new CBytePairCompressedImage;
- if( NULL == self)
- {
- return self;
- }
-
- if( KErrNone == self->ConstructL(aNumberOfPages, aSize))
- {
- return self;
- }
- return NULL;
-}
-
-
-TInt CBytePairCompressedImage::ConstructL(TUint16 aNumberOfPages, TInt aSize)
-{
- //Print(EWarning,"Start ofCBytePairCompressedImage::ConstructL(%d, %d)\n", aNumberOfPages, aSize );
- iHeader.iNumberOfPages = aNumberOfPages;
- iHeader.iDecompressedSize = aSize;
-
- if( 0 != aNumberOfPages)
- {
- iPages = (IndexTableItem *) calloc(aNumberOfPages, sizeof(IndexTableItem));
-
- if( NULL == iPages )
- {
- return KErrNoMemory;
- }
- }
-
- iHeader.iSizeOfData = sizeof(iHeader.iSizeOfData) +
- sizeof(iHeader.iDecompressedSize) +
- sizeof(iHeader.iNumberOfPages) +
- aNumberOfPages * sizeof(TUint16);
-
- iOutBuffer = (TUint8 *) calloc(4 * PAGE_SIZE, sizeof(TUint8) );
-
- if ( NULL == iOutBuffer)
- {
- return KErrNoMemory;
- }
- return KErrNone;
-} // End of ConstructL()
-
-CBytePairCompressedImage::~CBytePairCompressedImage()
-{
-
- for( int i = 0; i < iHeader.iNumberOfPages; i++)
- {
- free(iPages[i].iCompressedPageData);
- iPages[i].iCompressedPageData = NULL;
- }
-
- free( iPages );
- iPages = NULL;
-
- free( iOutBuffer );
- iOutBuffer = NULL;
-}
-
-
-void CBytePairCompressedImage::AddPage(TUint16 aPageNum, TUint8 * aPageData, TUint16 aPageSize)
-{
- //Print(EWarning,"Start of AddPage(aPageNum:%d, ,aPageSize:%d)\n",aPageNum, aPageSize );
-
-#ifdef __TEST_ONLY__
-
- iPages[aPageNum].iSizeOfCompressedPageData = 2;
-
- iPages[aPageNum].iCompressedPageData = (TUint8 *) calloc(iPages[aPageNum].iSizeOfCompressedPageData, sizeof(TUint8) );
-
- memcpy(iPages[aPageNum].iCompressedPageData, (TUint8 *) &aPageNum, iPages[aPageNum].iSizeOfCompressedPageData);
-
-
-#else
-
- TUint16 compressedSize = (TUint16) Pak(iOutBuffer,aPageData,aPageSize );
- iPages[aPageNum].iSizeOfCompressedPageData = compressedSize;
- //Print(EWarning,"Compressed page size:%d\n", iPages[aPageNum].iSizeOfCompressedPageData );
-
- iPages[aPageNum].iCompressedPageData = (TUint8 *) calloc(iPages[aPageNum].iSizeOfCompressedPageData, sizeof(TUint8) );
-
- if( NULL == iPages[aPageNum].iCompressedPageData )
- {
- return;
- }
-
- memcpy(iPages[aPageNum].iCompressedPageData, iOutBuffer, iPages[aPageNum].iSizeOfCompressedPageData );
-
-#endif
-
- iHeader.iSizeOfData += iPages[aPageNum].iSizeOfCompressedPageData;
-}
-
-void CBytePairCompressedImage::WriteOutTable(std::ofstream & os)
-{
- // Write out IndexTableHeader
- //Print(EWarning,"Write out IndexTableHeader(iSizeOfData:%d,iDecompressedSize:%d,iNumberOfPages:%d)\n",iHeader.iSizeOfData, iHeader.iDecompressedSize, iHeader.iNumberOfPages );
- //Print(EWarning,"sizeof(IndexTableHeader) = %d, , sizeof(TUint16) = %d\n",sizeof(IndexTableHeader), sizeof(TUint16) );
- //os.write((const char *) &iHeader, sizeof(IndexTableHeader));
- os.write((const char *) &iHeader.iSizeOfData, sizeof(iHeader.iSizeOfData));
- os.write((const char *) &iHeader.iDecompressedSize, sizeof(iHeader.iDecompressedSize));
- os.write((const char *) &iHeader.iNumberOfPages, sizeof(iHeader.iNumberOfPages));
-
-
- // Write out IndexTableItems (size of each compressed page)
- for(TInt i = 0; i < iHeader.iNumberOfPages; i++)
- {
- os.write((const char *) &(iPages[i].iSizeOfCompressedPageData), sizeof(TUint16));
- }
-
- // Write out compressed pages
- for(TInt i = 0; i < iHeader.iNumberOfPages; i++)
- {
- os.write( (const char *)iPages[i].iCompressedPageData, iPages[i].iSizeOfCompressedPageData);
- }
-
-}
-
-
-int CBytePairCompressedImage::ReadInTable(std::ifstream &is, TUint & aNumberOfPages)
-{
- // Read page index table header
- is.read((char *)&iHeader, (sizeof(iHeader.iSizeOfData)+sizeof(iHeader.iDecompressedSize)+sizeof(iHeader.iNumberOfPages)));
-
- // Allocatin place to Page index table entries
- iPages = (IndexTableItem *) calloc(iHeader.iNumberOfPages, sizeof(IndexTableItem));
-
- if( NULL == iPages )
- {
- return KErrNoMemory;
- }
-
- // Read whole Page index table
-
- for(TInt i = 0; i < iHeader.iNumberOfPages; i++)
- {
- is.read((char *) &(iPages[i].iSizeOfCompressedPageData), sizeof(TUint16));
- }
-
- // Read compressed data pages page by page, decompress and store them
- for(TInt i = 0; i < iHeader.iNumberOfPages; i++)
- {
-
- iPages[i].iCompressedPageData = (TUint8 *) calloc(iPages[i].iSizeOfCompressedPageData, sizeof(TUint8) );
-
- if( NULL == iPages[i].iCompressedPageData )
- {
- return KErrNoMemory;
- }
-
- is.read((char *)iPages[i].iCompressedPageData, iPages[i].iSizeOfCompressedPageData);
- }
-
- aNumberOfPages = iHeader.iNumberOfPages;
-
- return KErrNone;
-}
-
-int CBytePairCompressedImage::GetPage(TUint16 aPageNum, TUint8 * aPageData)
-{
- TUint8* pakEnd;
-
- const TInt MaxBlockSize = 0x1000;
-
- TUint16 uncompressedSize = (TUint16) Unpak( aPageData,
- MaxBlockSize,
- iPages[aPageNum].iCompressedPageData,
- iPages[aPageNum].iSizeOfCompressedPageData,
- pakEnd );
-
- return uncompressedSize;
-
-
-}
-
-
-void CompressPages(TUint8* bytes, TInt size, std::ofstream& os)
-{
- // Build a list of compressed pages
- TUint16 numOfPages = (TUint16) ((size + PAGE_SIZE - 1) / PAGE_SIZE);
-
- CBytePairCompressedImage* comprImage = CBytePairCompressedImage::NewLC(numOfPages, size);
- if (!comprImage)
- {
- //Print(EError," NULL == comprImage\n");
- return;
- }
-
- TUint pageNum;
- TUint remain = (TUint)size;
- for (pageNum=0; pageNum<numOfPages; ++pageNum)
- {
- TUint8* pageStart = bytes + pageNum * PAGE_SIZE;
- TUint pageLen = remain>PAGE_SIZE ? PAGE_SIZE : remain;
- comprImage->AddPage((TUint16)pageNum, pageStart, (TUint16)pageLen);
- remain -= pageLen;
- }
-
- // Write out index table and compressed pages
- comprImage->WriteOutTable(os);
-
-
- delete comprImage;
- comprImage = NULL;
-
-}
-
-
-int DecompressPages(TUint8 * bytes, std::ifstream& is)
-{
- TUint decompressedSize = 0;
- CBytePairCompressedImage *comprImage = CBytePairCompressedImage::NewLC(0, 0);
- if( NULL == comprImage)
- {
- //Print(EError," NULL == comprImage\n");
- return KErrNoMemory;
- }
-
- TUint numberOfPages = 0;
- comprImage->ReadInTable(is, numberOfPages);
-
-
- TUint8* iPageStart;
- TUint16 iPage = 0;
-
- while(iPage < numberOfPages )
- {
- iPageStart = &bytes[iPage * PAGE_SIZE];
-
- decompressedSize += comprImage->GetPage(iPage, iPageStart);
-
- ++iPage;
- }
-
- delete comprImage;
- return decompressedSize;
-
-}