--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicstools/gdi_tools/bmconv/BMTOPBM.CPP	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,442 @@
+// Copyright (c) 1997-2009 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:
+//
+
+#include "BMCONV.H"
+
+BitmapLoader::BitmapLoader():
+	iNumBmpColors(0),
+	iBmpColors(NULL),
+	iBmpBits(NULL),
+	iAlphaBits(NULL)
+	{}
+
+BitmapLoader::~BitmapLoader()
+	{
+	delete [] iBmpColors;
+	delete [] iBmpBits;
+	delete [] iAlphaBits;
+	}
+
+int BitmapLoader::LoadBitmap(char* aFileName,int aBpp,TBitmapColor aColor,SEpocBitmapHeader*& aPbm)
+	{
+	char sig[2];
+
+#if defined(__MSVCDOTNET__) || defined(__LINUX__) || defined(__TOOLS2__)
+	fstream file(aFileName, ios::in | ios::binary);
+#else //!__MSVCDOTNET__
+	fstream file(aFileName, ios::in | ios::binary | ios::nocreate);
+#endif //__MSVCDOTNET__
+
+	if (file.is_open()==0)
+		return Files;
+	file.read(sig,2);
+	file.close();
+	if (file.gcount()!=2)
+		return SourceFile ;
+	if (sig[0]!='B'||sig[1]!='M')
+		return SourceFile;
+
+	int ret = DoLoad(aFileName);
+	if (!ret && aColor==EColorBitmapAlpha)
+		{
+		int fileNameLen = strlen(aFileName);
+		char* alphaFileName = new char[fileNameLen + 7];// -alpha suffix is 6 chars, plus NUL termination
+		if (alphaFileName == NULL)
+			return NoMemory;
+		int dotPos = -1;
+		for (int i = 0; i < fileNameLen; ++i)
+			if (aFileName[i]=='.')
+				dotPos=i;
+		int prefixLen = (dotPos>=0?dotPos:fileNameLen);
+		memcpy(alphaFileName,aFileName,prefixLen);
+		const char* suffix = "-alpha";
+		memcpy(alphaFileName+prefixLen,suffix,6);
+		if (dotPos>=0)
+			memcpy(alphaFileName+prefixLen+6,aFileName+dotPos,fileNameLen-dotPos);
+		*(alphaFileName + fileNameLen + 6) = '\0';
+		ret = DoLoadAlpha(alphaFileName); // overlay alpha data from separate file
+		delete [] alphaFileName;
+		}
+	if (!ret)
+		ret = DoConvert(aBpp,aColor,aPbm);
+	return ret;
+	}
+
+int BitmapLoader::DoLoad(char* aFileName)
+	{
+#if defined(__MSVCDOTNET__) || defined(__TOOLS2__)
+	fstream file(aFileName, ios::in | ios::binary);
+#else //!__MSVCDOTNET__
+	fstream file(aFileName, ios::in | ios::binary | ios::nocreate);
+#endif //__MSVCDOTNET__
+	if (file.is_open()==0)
+		return Files;
+	TBitmapFileHeader bmpfile;
+	long size=sizeof(TBitmapFileHeader);
+	file.read((char *)&bmpfile,size);
+	if (file.gcount()!=size)
+		return SourceFile;
+	size=sizeof(TBitmapInfoHeader);
+	file.read((char *)&iBmpHeader,size);
+	if (file.gcount()!=size)
+		return SourceFile;
+	if (iBmpHeader.biCompression != 0)
+		return UnknownCompression;
+	size=bmpfile.bfSize-sizeof(TBitmapInfoHeader)-sizeof(TBitmapFileHeader);
+	long bitcount=iBmpHeader.biBitCount;
+	long colors=iBmpHeader.biClrUsed;
+	if (colors==0)
+		{
+		if (bitcount==24)
+			iNumBmpColors=0;
+		else if (bitcount==32)
+			iNumBmpColors=0;//See MSDN - BITMAPFILEHEADER and BITMAPINFOHEADER structures.
+                            //If biCompression is 0 - we don't have TRgbQuad array! 
+		else
+			iNumBmpColors=1<<bitcount;
+		}
+	else
+		iNumBmpColors=colors;
+	if (iNumBmpColors > 256)
+		return SourceFile;
+	if (iNumBmpColors>0)
+		{
+		iBmpColors = new TRgbQuad[iNumBmpColors];
+		if (iBmpColors == NULL)
+			return NoMemory;
+		memset(iBmpColors,0,iNumBmpColors*sizeof(TRgbQuad));
+		}
+	size-=iNumBmpColors*sizeof(TRgbQuad);
+	iBmpBits = new char[size];
+	if (iBmpBits == NULL)
+		return NoMemory;
+	memset(iBmpBits,0xff,size);
+	// DEF102183: Graphics tools fail to run after building with MS VC8.
+	if(iBmpColors != NULL)
+	    {
+		file.read((char *)iBmpColors,iNumBmpColors*sizeof(TRgbQuad));
+		if (file.gcount()!=(int)(iNumBmpColors*sizeof(TRgbQuad)))
+			return SourceFile;
+	    }
+	file.read(iBmpBits,size);
+	file.close();
+	if (file.gcount()!=size)
+		return SourceFile;
+	return NoError;
+	}
+
+int BitmapLoader::DoLoadAlpha(char* aAlphaFileName)
+	{
+#if defined(__MSVCDOTNET__) || defined(__TOOLS2__)
+	fstream file(aAlphaFileName, ios::in | ios::binary);
+#else //!__MSVCDOTNET__
+	fstream file(aAlphaFileName, ios::in | ios::binary | ios::nocreate);
+#endif //__MSVCDOTNET__
+	if (file.is_open()==0)
+		return AlphaFiles;
+	TBitmapFileHeader alphaBmpfile;
+	long size=sizeof(TBitmapFileHeader);
+	file.read((char *)&alphaBmpfile,size);
+	if (file.gcount()!=size)
+		return SourceFile;
+	size=sizeof(TBitmapInfoHeader);
+	TBitmapInfoHeader alphaBmpInfo;
+	file.read((char *)&alphaBmpInfo,size);
+	if (file.gcount()!=size)
+		return SourceFile;
+	if (alphaBmpInfo.biCompression != 0)
+		return UnknownCompression;
+	if (alphaBmpInfo.biWidth != iBmpHeader.biWidth || alphaBmpInfo.biHeight != iBmpHeader.biHeight)
+		return AlphaDimensions;
+	if (alphaBmpInfo.biBitCount != 8)
+		return AlphaBpp;
+	size=alphaBmpfile.bfSize-sizeof(TBitmapInfoHeader)-sizeof(TBitmapFileHeader);
+	long numBmpColors=alphaBmpInfo.biClrUsed;
+	if (numBmpColors == 0)
+		numBmpColors = 256;
+	if (numBmpColors != 256)
+		return SourceFile;
+	size-=numBmpColors*sizeof(TRgbQuad);
+	iAlphaBits = new char[size];
+	if (iAlphaBits == NULL)
+		{
+		return NoMemory;
+		}
+	memset(iAlphaBits,0xff,size);
+	char* bmpColors = new char[numBmpColors*sizeof(TRgbQuad)];
+	file.read((char *)bmpColors,numBmpColors*sizeof(TRgbQuad));
+	delete [] bmpColors; // we aren't interested in the palette data for the 8bpp grayscale alpha bmp
+	if (file.gcount()!=(int)(numBmpColors*sizeof(TRgbQuad)))
+		return SourceFile;
+	file.read(iAlphaBits,size);
+	file.close();
+	if (file.gcount()!=size)
+		return SourceFile;
+	return NoError;
+	}
+
+TRgb BitmapLoader::GetBmpPixel(long aXCoord,long aYCoord)
+	{
+	TRgb darkgray(128,128,128);
+	TRgb darkgrayex(127,127,127);
+	TRgb lightgray(192,192,192);
+	TRgb lightgrayex(187,187,187);
+	unsigned char col;
+	TRgb color;
+
+	switch(iBmpHeader.biBitCount)
+		{
+		case 1:
+			col=iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*(((iBmpHeader.biWidth+31)>>5)<<2)+(aXCoord>>3)];
+			col&=(0x80>>(aXCoord%8));
+			if (iBmpColors)
+				{
+				TRgbQuad rgbq;
+				if (col)
+					rgbq = iBmpColors[1];
+				else
+					rgbq = iBmpColors[0];
+				color = TRgb(rgbq.iRed,rgbq.iGreen,rgbq.iBlue);
+				}
+			else
+				{
+				if (col)
+					color = TRgb(0x00ffffff);
+				else
+					color = TRgb(0);
+				}
+			break;
+		case 4:
+			col=iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*(((iBmpHeader.biWidth+7)>>3)<<2)+(aXCoord>>1)];
+			if (aXCoord%2==0)
+				col=(unsigned char)(col>>4);
+			col&=0x0f;
+			if (iBmpColors)
+				{
+				TRgbQuad rgbq = iBmpColors[col];
+				color = TRgb(rgbq.iRed,rgbq.iGreen,rgbq.iBlue);
+				}
+			else
+				{
+				col *= 17;
+				color = TRgb(col,col,col);
+				}
+			break;
+		case 8:
+			col=iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*((iBmpHeader.biWidth+3)&~3)+aXCoord];
+			if (iBmpColors)
+				{
+				TRgbQuad rgbq = iBmpColors[col];
+				color = TRgb(rgbq.iRed,rgbq.iGreen,rgbq.iBlue);
+				}
+			else
+				color = TRgb(col,col,col);
+			break;
+		case 16:
+			{
+			unsigned short int* wordptr = (unsigned short int*)&iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*(((iBmpHeader.biWidth+1)&~1)<<1)+(aXCoord<<1)];
+			color = TRgb((*wordptr&0x7c)>>10,(*wordptr&0x3e)>>5,(*wordptr&0x1f));
+			}
+			break;
+		case 24:
+			{
+			TRgbTriple rgbcol = *((TRgbTriple *)&(iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*((3*iBmpHeader.biWidth+3)&~3)+aXCoord+(aXCoord<<1)]));
+			color = TRgb(rgbcol.rgbtRed,rgbcol.rgbtGreen,rgbcol.rgbtBlue);
+			}
+			break;
+		case 32:
+			{
+			unsigned long int* dwordptr = (unsigned long int*)&iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*((iBmpHeader.biWidth)<<2)+(aXCoord<<2)];
+			color = TRgb((*dwordptr&0xff0000)>>16,(*dwordptr&0xff00)>>8,*dwordptr&0xff);
+			}
+			break;
+		default:
+			break;
+		}
+	if (color == darkgray)
+		color = darkgrayex;
+	else if (color == lightgray)
+		color = lightgrayex;
+	return color;
+	}
+
+unsigned char BitmapLoader::GetAlphaPixel(long aXCoord,long aYCoord)
+	{
+	return iAlphaBits[(iBmpHeader.biHeight-aYCoord-1)*((iBmpHeader.biWidth+3)&~3)+aXCoord];
+	}
+
+int BitmapLoader::DoConvert(int aBpp,TBitmapColor aColor,SEpocBitmapHeader*& aPbm)
+	{
+	bool useAlpha = (aColor==EColorBitmapAlpha || aColor==EColorBitmapAlphaPM);
+	long desttwipswidth = 0;
+	long desttwipsheight = 0;
+
+	long bytewidth = BitmapUtils::ByteWidth(iBmpHeader.biWidth,aBpp);
+	long destlength = iBmpHeader.biHeight * bytewidth;
+
+	if (iBmpHeader.biXPelsPerMeter>0)
+		desttwipswidth = iBmpHeader.biWidth*1440000/254/iBmpHeader.biXPelsPerMeter;
+	if (iBmpHeader.biYPelsPerMeter>0)
+		desttwipsheight = iBmpHeader.biHeight*1440000/254/iBmpHeader.biYPelsPerMeter;
+
+	aPbm = (SEpocBitmapHeader*)new char[sizeof(SEpocBitmapHeader) + destlength];
+	if (aPbm == NULL)
+		return NoMemory;
+	memset(aPbm,0,sizeof(SEpocBitmapHeader));
+
+	// aBitmap->iByteWidth = bytewidth;
+	// aBitmap->iDataOffset = sizeof(Bitmap);
+
+	aPbm->iBitmapSize = sizeof(SEpocBitmapHeader) + destlength;
+	aPbm->iStructSize = sizeof(SEpocBitmapHeader);
+	aPbm->iWidthInPixels = iBmpHeader.biWidth;
+	aPbm->iHeightInPixels = iBmpHeader.biHeight;
+	aPbm->iWidthInTwips = desttwipswidth;
+	aPbm->iHeightInTwips = desttwipsheight;
+	aPbm->iBitsPerPixel = aBpp;
+	aPbm->iColor = aColor;
+	aPbm->iPaletteEntries = 0;
+	aPbm->iCompression = ENoBitmapCompression;
+
+	char* pbmBits = ((char*)aPbm) + sizeof(SEpocBitmapHeader);
+	memset(pbmBits,0xff,destlength);
+
+	long col = 0;
+	char* pixadd = 0;
+
+	switch(aBpp)
+		{
+	case 1:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb color=GetBmpPixel(xcrd,ycrd);
+				col=color.Gray2();
+				pixadd=&(pbmBits[ycrd*bytewidth+(xcrd>>3)]);
+				(*pixadd)&=~(1<<((xcrd&7)));
+				(*pixadd)|=(unsigned char)(col<<(xcrd&7));
+				}
+		}
+		break;
+	case 2:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb color=GetBmpPixel(xcrd,ycrd);
+				col=color.Gray4();
+				pixadd=&(pbmBits[ycrd*bytewidth+(xcrd>>2)]);
+				(*pixadd)&=~(0x3<<(2*(xcrd%4)));
+				(*pixadd)|=(unsigned char)(col<<(2*(xcrd%4)));
+				}
+		}
+		break;
+	case 4:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb color=GetBmpPixel(xcrd,ycrd);
+				if (aColor == EMonochromeBitmap)
+					col = color.Gray16();
+				else
+					col = color.Color16();
+				pixadd=&(pbmBits[ycrd*bytewidth+(xcrd>>1)]);
+				if (xcrd%2!=0)
+					*pixadd=(unsigned char)((unsigned char)((col<<4)|(*pixadd&0x0f)));
+				else
+					*pixadd=(unsigned char)((unsigned char)(col|(*pixadd&0xf0)));
+				}
+		}
+		break;
+	case 8:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb color=GetBmpPixel(xcrd,ycrd);
+				if (aColor == EMonochromeBitmap)
+					col = color.Gray256();
+				else
+					col = color.Color256();
+				pixadd=&(pbmBits[ycrd*((iBmpHeader.biWidth+3)&~3)+xcrd]);
+				*pixadd=(unsigned char)col;
+				}
+		}
+		break;
+	case 12:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb color=GetBmpPixel(xcrd,ycrd);
+				col=color.Color4K();
+				pixadd=&(pbmBits[ycrd*bytewidth+(xcrd<<1)]);
+				unsigned short* wordadd=(unsigned short*)pixadd;
+				*wordadd=(unsigned short)col;
+				}
+		}
+		break;
+	case 16:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb color=GetBmpPixel(xcrd,ycrd);
+				col=color.Color64K();
+				pixadd=&(pbmBits[ycrd*bytewidth+(xcrd<<1)]);
+				unsigned short* wordadd=(unsigned short*)pixadd;
+				*wordadd=(unsigned short)col;
+				}
+		}
+		break;
+	case 24:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			{
+			unsigned char* bytePtr = (unsigned char*)&pbmBits[ycrd*bytewidth];
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb col = GetBmpPixel(xcrd,ycrd);
+				*bytePtr++ = (unsigned char) col.iBlue;
+				*bytePtr++ = (unsigned char) col.iGreen;
+				*bytePtr++ = (unsigned char) col.iRed;
+				}
+			}
+		}
+		break;
+	case 32:
+		{
+		for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
+			{
+			unsigned char* bytePtr = (unsigned char*)&pbmBits[ycrd*bytewidth];
+			for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
+				{
+				TRgb col = GetBmpPixel(xcrd,ycrd);
+				unsigned char alpha = useAlpha?GetAlphaPixel(xcrd,ycrd):(unsigned char)0;
+				*bytePtr++ = (unsigned char) col.iBlue;
+				*bytePtr++ = (unsigned char) col.iGreen;
+				*bytePtr++ = (unsigned char) col.iRed;
+				*bytePtr++ = alpha;	
+				}
+			}
+		}
+		break;
+		};
+
+	return NoError;
+	}
+