1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/graphicstools/gdi_tools/bmconv/BMTOPBM.CPP Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,442 @@
1.4 +// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +//
1.18 +
1.19 +#include "BMCONV.H"
1.20 +
1.21 +BitmapLoader::BitmapLoader():
1.22 + iNumBmpColors(0),
1.23 + iBmpColors(NULL),
1.24 + iBmpBits(NULL),
1.25 + iAlphaBits(NULL)
1.26 + {}
1.27 +
1.28 +BitmapLoader::~BitmapLoader()
1.29 + {
1.30 + delete [] iBmpColors;
1.31 + delete [] iBmpBits;
1.32 + delete [] iAlphaBits;
1.33 + }
1.34 +
1.35 +int BitmapLoader::LoadBitmap(char* aFileName,int aBpp,TBitmapColor aColor,SEpocBitmapHeader*& aPbm)
1.36 + {
1.37 + char sig[2];
1.38 +
1.39 +#if defined(__MSVCDOTNET__) || defined(__LINUX__) || defined(__TOOLS2__)
1.40 + fstream file(aFileName, ios::in | ios::binary);
1.41 +#else //!__MSVCDOTNET__
1.42 + fstream file(aFileName, ios::in | ios::binary | ios::nocreate);
1.43 +#endif //__MSVCDOTNET__
1.44 +
1.45 + if (file.is_open()==0)
1.46 + return Files;
1.47 + file.read(sig,2);
1.48 + file.close();
1.49 + if (file.gcount()!=2)
1.50 + return SourceFile ;
1.51 + if (sig[0]!='B'||sig[1]!='M')
1.52 + return SourceFile;
1.53 +
1.54 + int ret = DoLoad(aFileName);
1.55 + if (!ret && aColor==EColorBitmapAlpha)
1.56 + {
1.57 + int fileNameLen = strlen(aFileName);
1.58 + char* alphaFileName = new char[fileNameLen + 7];// -alpha suffix is 6 chars, plus NUL termination
1.59 + if (alphaFileName == NULL)
1.60 + return NoMemory;
1.61 + int dotPos = -1;
1.62 + for (int i = 0; i < fileNameLen; ++i)
1.63 + if (aFileName[i]=='.')
1.64 + dotPos=i;
1.65 + int prefixLen = (dotPos>=0?dotPos:fileNameLen);
1.66 + memcpy(alphaFileName,aFileName,prefixLen);
1.67 + const char* suffix = "-alpha";
1.68 + memcpy(alphaFileName+prefixLen,suffix,6);
1.69 + if (dotPos>=0)
1.70 + memcpy(alphaFileName+prefixLen+6,aFileName+dotPos,fileNameLen-dotPos);
1.71 + *(alphaFileName + fileNameLen + 6) = '\0';
1.72 + ret = DoLoadAlpha(alphaFileName); // overlay alpha data from separate file
1.73 + delete [] alphaFileName;
1.74 + }
1.75 + if (!ret)
1.76 + ret = DoConvert(aBpp,aColor,aPbm);
1.77 + return ret;
1.78 + }
1.79 +
1.80 +int BitmapLoader::DoLoad(char* aFileName)
1.81 + {
1.82 +#if defined(__MSVCDOTNET__) || defined(__TOOLS2__)
1.83 + fstream file(aFileName, ios::in | ios::binary);
1.84 +#else //!__MSVCDOTNET__
1.85 + fstream file(aFileName, ios::in | ios::binary | ios::nocreate);
1.86 +#endif //__MSVCDOTNET__
1.87 + if (file.is_open()==0)
1.88 + return Files;
1.89 + TBitmapFileHeader bmpfile;
1.90 + long size=sizeof(TBitmapFileHeader);
1.91 + file.read((char *)&bmpfile,size);
1.92 + if (file.gcount()!=size)
1.93 + return SourceFile;
1.94 + size=sizeof(TBitmapInfoHeader);
1.95 + file.read((char *)&iBmpHeader,size);
1.96 + if (file.gcount()!=size)
1.97 + return SourceFile;
1.98 + if (iBmpHeader.biCompression != 0)
1.99 + return UnknownCompression;
1.100 + size=bmpfile.bfSize-sizeof(TBitmapInfoHeader)-sizeof(TBitmapFileHeader);
1.101 + long bitcount=iBmpHeader.biBitCount;
1.102 + long colors=iBmpHeader.biClrUsed;
1.103 + if (colors==0)
1.104 + {
1.105 + if (bitcount==24)
1.106 + iNumBmpColors=0;
1.107 + else if (bitcount==32)
1.108 + iNumBmpColors=0;//See MSDN - BITMAPFILEHEADER and BITMAPINFOHEADER structures.
1.109 + //If biCompression is 0 - we don't have TRgbQuad array!
1.110 + else
1.111 + iNumBmpColors=1<<bitcount;
1.112 + }
1.113 + else
1.114 + iNumBmpColors=colors;
1.115 + if (iNumBmpColors > 256)
1.116 + return SourceFile;
1.117 + if (iNumBmpColors>0)
1.118 + {
1.119 + iBmpColors = new TRgbQuad[iNumBmpColors];
1.120 + if (iBmpColors == NULL)
1.121 + return NoMemory;
1.122 + memset(iBmpColors,0,iNumBmpColors*sizeof(TRgbQuad));
1.123 + }
1.124 + size-=iNumBmpColors*sizeof(TRgbQuad);
1.125 + iBmpBits = new char[size];
1.126 + if (iBmpBits == NULL)
1.127 + return NoMemory;
1.128 + memset(iBmpBits,0xff,size);
1.129 + // DEF102183: Graphics tools fail to run after building with MS VC8.
1.130 + if(iBmpColors != NULL)
1.131 + {
1.132 + file.read((char *)iBmpColors,iNumBmpColors*sizeof(TRgbQuad));
1.133 + if (file.gcount()!=(int)(iNumBmpColors*sizeof(TRgbQuad)))
1.134 + return SourceFile;
1.135 + }
1.136 + file.read(iBmpBits,size);
1.137 + file.close();
1.138 + if (file.gcount()!=size)
1.139 + return SourceFile;
1.140 + return NoError;
1.141 + }
1.142 +
1.143 +int BitmapLoader::DoLoadAlpha(char* aAlphaFileName)
1.144 + {
1.145 +#if defined(__MSVCDOTNET__) || defined(__TOOLS2__)
1.146 + fstream file(aAlphaFileName, ios::in | ios::binary);
1.147 +#else //!__MSVCDOTNET__
1.148 + fstream file(aAlphaFileName, ios::in | ios::binary | ios::nocreate);
1.149 +#endif //__MSVCDOTNET__
1.150 + if (file.is_open()==0)
1.151 + return AlphaFiles;
1.152 + TBitmapFileHeader alphaBmpfile;
1.153 + long size=sizeof(TBitmapFileHeader);
1.154 + file.read((char *)&alphaBmpfile,size);
1.155 + if (file.gcount()!=size)
1.156 + return SourceFile;
1.157 + size=sizeof(TBitmapInfoHeader);
1.158 + TBitmapInfoHeader alphaBmpInfo;
1.159 + file.read((char *)&alphaBmpInfo,size);
1.160 + if (file.gcount()!=size)
1.161 + return SourceFile;
1.162 + if (alphaBmpInfo.biCompression != 0)
1.163 + return UnknownCompression;
1.164 + if (alphaBmpInfo.biWidth != iBmpHeader.biWidth || alphaBmpInfo.biHeight != iBmpHeader.biHeight)
1.165 + return AlphaDimensions;
1.166 + if (alphaBmpInfo.biBitCount != 8)
1.167 + return AlphaBpp;
1.168 + size=alphaBmpfile.bfSize-sizeof(TBitmapInfoHeader)-sizeof(TBitmapFileHeader);
1.169 + long numBmpColors=alphaBmpInfo.biClrUsed;
1.170 + if (numBmpColors == 0)
1.171 + numBmpColors = 256;
1.172 + if (numBmpColors != 256)
1.173 + return SourceFile;
1.174 + size-=numBmpColors*sizeof(TRgbQuad);
1.175 + iAlphaBits = new char[size];
1.176 + if (iAlphaBits == NULL)
1.177 + {
1.178 + return NoMemory;
1.179 + }
1.180 + memset(iAlphaBits,0xff,size);
1.181 + char* bmpColors = new char[numBmpColors*sizeof(TRgbQuad)];
1.182 + file.read((char *)bmpColors,numBmpColors*sizeof(TRgbQuad));
1.183 + delete [] bmpColors; // we aren't interested in the palette data for the 8bpp grayscale alpha bmp
1.184 + if (file.gcount()!=(int)(numBmpColors*sizeof(TRgbQuad)))
1.185 + return SourceFile;
1.186 + file.read(iAlphaBits,size);
1.187 + file.close();
1.188 + if (file.gcount()!=size)
1.189 + return SourceFile;
1.190 + return NoError;
1.191 + }
1.192 +
1.193 +TRgb BitmapLoader::GetBmpPixel(long aXCoord,long aYCoord)
1.194 + {
1.195 + TRgb darkgray(128,128,128);
1.196 + TRgb darkgrayex(127,127,127);
1.197 + TRgb lightgray(192,192,192);
1.198 + TRgb lightgrayex(187,187,187);
1.199 + unsigned char col;
1.200 + TRgb color;
1.201 +
1.202 + switch(iBmpHeader.biBitCount)
1.203 + {
1.204 + case 1:
1.205 + col=iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*(((iBmpHeader.biWidth+31)>>5)<<2)+(aXCoord>>3)];
1.206 + col&=(0x80>>(aXCoord%8));
1.207 + if (iBmpColors)
1.208 + {
1.209 + TRgbQuad rgbq;
1.210 + if (col)
1.211 + rgbq = iBmpColors[1];
1.212 + else
1.213 + rgbq = iBmpColors[0];
1.214 + color = TRgb(rgbq.iRed,rgbq.iGreen,rgbq.iBlue);
1.215 + }
1.216 + else
1.217 + {
1.218 + if (col)
1.219 + color = TRgb(0x00ffffff);
1.220 + else
1.221 + color = TRgb(0);
1.222 + }
1.223 + break;
1.224 + case 4:
1.225 + col=iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*(((iBmpHeader.biWidth+7)>>3)<<2)+(aXCoord>>1)];
1.226 + if (aXCoord%2==0)
1.227 + col=(unsigned char)(col>>4);
1.228 + col&=0x0f;
1.229 + if (iBmpColors)
1.230 + {
1.231 + TRgbQuad rgbq = iBmpColors[col];
1.232 + color = TRgb(rgbq.iRed,rgbq.iGreen,rgbq.iBlue);
1.233 + }
1.234 + else
1.235 + {
1.236 + col *= 17;
1.237 + color = TRgb(col,col,col);
1.238 + }
1.239 + break;
1.240 + case 8:
1.241 + col=iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*((iBmpHeader.biWidth+3)&~3)+aXCoord];
1.242 + if (iBmpColors)
1.243 + {
1.244 + TRgbQuad rgbq = iBmpColors[col];
1.245 + color = TRgb(rgbq.iRed,rgbq.iGreen,rgbq.iBlue);
1.246 + }
1.247 + else
1.248 + color = TRgb(col,col,col);
1.249 + break;
1.250 + case 16:
1.251 + {
1.252 + unsigned short int* wordptr = (unsigned short int*)&iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*(((iBmpHeader.biWidth+1)&~1)<<1)+(aXCoord<<1)];
1.253 + color = TRgb((*wordptr&0x7c)>>10,(*wordptr&0x3e)>>5,(*wordptr&0x1f));
1.254 + }
1.255 + break;
1.256 + case 24:
1.257 + {
1.258 + TRgbTriple rgbcol = *((TRgbTriple *)&(iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*((3*iBmpHeader.biWidth+3)&~3)+aXCoord+(aXCoord<<1)]));
1.259 + color = TRgb(rgbcol.rgbtRed,rgbcol.rgbtGreen,rgbcol.rgbtBlue);
1.260 + }
1.261 + break;
1.262 + case 32:
1.263 + {
1.264 + unsigned long int* dwordptr = (unsigned long int*)&iBmpBits[(iBmpHeader.biHeight-aYCoord-1)*((iBmpHeader.biWidth)<<2)+(aXCoord<<2)];
1.265 + color = TRgb((*dwordptr&0xff0000)>>16,(*dwordptr&0xff00)>>8,*dwordptr&0xff);
1.266 + }
1.267 + break;
1.268 + default:
1.269 + break;
1.270 + }
1.271 + if (color == darkgray)
1.272 + color = darkgrayex;
1.273 + else if (color == lightgray)
1.274 + color = lightgrayex;
1.275 + return color;
1.276 + }
1.277 +
1.278 +unsigned char BitmapLoader::GetAlphaPixel(long aXCoord,long aYCoord)
1.279 + {
1.280 + return iAlphaBits[(iBmpHeader.biHeight-aYCoord-1)*((iBmpHeader.biWidth+3)&~3)+aXCoord];
1.281 + }
1.282 +
1.283 +int BitmapLoader::DoConvert(int aBpp,TBitmapColor aColor,SEpocBitmapHeader*& aPbm)
1.284 + {
1.285 + bool useAlpha = (aColor==EColorBitmapAlpha || aColor==EColorBitmapAlphaPM);
1.286 + long desttwipswidth = 0;
1.287 + long desttwipsheight = 0;
1.288 +
1.289 + long bytewidth = BitmapUtils::ByteWidth(iBmpHeader.biWidth,aBpp);
1.290 + long destlength = iBmpHeader.biHeight * bytewidth;
1.291 +
1.292 + if (iBmpHeader.biXPelsPerMeter>0)
1.293 + desttwipswidth = iBmpHeader.biWidth*1440000/254/iBmpHeader.biXPelsPerMeter;
1.294 + if (iBmpHeader.biYPelsPerMeter>0)
1.295 + desttwipsheight = iBmpHeader.biHeight*1440000/254/iBmpHeader.biYPelsPerMeter;
1.296 +
1.297 + aPbm = (SEpocBitmapHeader*)new char[sizeof(SEpocBitmapHeader) + destlength];
1.298 + if (aPbm == NULL)
1.299 + return NoMemory;
1.300 + memset(aPbm,0,sizeof(SEpocBitmapHeader));
1.301 +
1.302 + // aBitmap->iByteWidth = bytewidth;
1.303 + // aBitmap->iDataOffset = sizeof(Bitmap);
1.304 +
1.305 + aPbm->iBitmapSize = sizeof(SEpocBitmapHeader) + destlength;
1.306 + aPbm->iStructSize = sizeof(SEpocBitmapHeader);
1.307 + aPbm->iWidthInPixels = iBmpHeader.biWidth;
1.308 + aPbm->iHeightInPixels = iBmpHeader.biHeight;
1.309 + aPbm->iWidthInTwips = desttwipswidth;
1.310 + aPbm->iHeightInTwips = desttwipsheight;
1.311 + aPbm->iBitsPerPixel = aBpp;
1.312 + aPbm->iColor = aColor;
1.313 + aPbm->iPaletteEntries = 0;
1.314 + aPbm->iCompression = ENoBitmapCompression;
1.315 +
1.316 + char* pbmBits = ((char*)aPbm) + sizeof(SEpocBitmapHeader);
1.317 + memset(pbmBits,0xff,destlength);
1.318 +
1.319 + long col = 0;
1.320 + char* pixadd = 0;
1.321 +
1.322 + switch(aBpp)
1.323 + {
1.324 + case 1:
1.325 + {
1.326 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.327 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.328 + {
1.329 + TRgb color=GetBmpPixel(xcrd,ycrd);
1.330 + col=color.Gray2();
1.331 + pixadd=&(pbmBits[ycrd*bytewidth+(xcrd>>3)]);
1.332 + (*pixadd)&=~(1<<((xcrd&7)));
1.333 + (*pixadd)|=(unsigned char)(col<<(xcrd&7));
1.334 + }
1.335 + }
1.336 + break;
1.337 + case 2:
1.338 + {
1.339 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.340 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.341 + {
1.342 + TRgb color=GetBmpPixel(xcrd,ycrd);
1.343 + col=color.Gray4();
1.344 + pixadd=&(pbmBits[ycrd*bytewidth+(xcrd>>2)]);
1.345 + (*pixadd)&=~(0x3<<(2*(xcrd%4)));
1.346 + (*pixadd)|=(unsigned char)(col<<(2*(xcrd%4)));
1.347 + }
1.348 + }
1.349 + break;
1.350 + case 4:
1.351 + {
1.352 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.353 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.354 + {
1.355 + TRgb color=GetBmpPixel(xcrd,ycrd);
1.356 + if (aColor == EMonochromeBitmap)
1.357 + col = color.Gray16();
1.358 + else
1.359 + col = color.Color16();
1.360 + pixadd=&(pbmBits[ycrd*bytewidth+(xcrd>>1)]);
1.361 + if (xcrd%2!=0)
1.362 + *pixadd=(unsigned char)((unsigned char)((col<<4)|(*pixadd&0x0f)));
1.363 + else
1.364 + *pixadd=(unsigned char)((unsigned char)(col|(*pixadd&0xf0)));
1.365 + }
1.366 + }
1.367 + break;
1.368 + case 8:
1.369 + {
1.370 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.371 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.372 + {
1.373 + TRgb color=GetBmpPixel(xcrd,ycrd);
1.374 + if (aColor == EMonochromeBitmap)
1.375 + col = color.Gray256();
1.376 + else
1.377 + col = color.Color256();
1.378 + pixadd=&(pbmBits[ycrd*((iBmpHeader.biWidth+3)&~3)+xcrd]);
1.379 + *pixadd=(unsigned char)col;
1.380 + }
1.381 + }
1.382 + break;
1.383 + case 12:
1.384 + {
1.385 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.386 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.387 + {
1.388 + TRgb color=GetBmpPixel(xcrd,ycrd);
1.389 + col=color.Color4K();
1.390 + pixadd=&(pbmBits[ycrd*bytewidth+(xcrd<<1)]);
1.391 + unsigned short* wordadd=(unsigned short*)pixadd;
1.392 + *wordadd=(unsigned short)col;
1.393 + }
1.394 + }
1.395 + break;
1.396 + case 16:
1.397 + {
1.398 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.399 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.400 + {
1.401 + TRgb color=GetBmpPixel(xcrd,ycrd);
1.402 + col=color.Color64K();
1.403 + pixadd=&(pbmBits[ycrd*bytewidth+(xcrd<<1)]);
1.404 + unsigned short* wordadd=(unsigned short*)pixadd;
1.405 + *wordadd=(unsigned short)col;
1.406 + }
1.407 + }
1.408 + break;
1.409 + case 24:
1.410 + {
1.411 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.412 + {
1.413 + unsigned char* bytePtr = (unsigned char*)&pbmBits[ycrd*bytewidth];
1.414 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.415 + {
1.416 + TRgb col = GetBmpPixel(xcrd,ycrd);
1.417 + *bytePtr++ = (unsigned char) col.iBlue;
1.418 + *bytePtr++ = (unsigned char) col.iGreen;
1.419 + *bytePtr++ = (unsigned char) col.iRed;
1.420 + }
1.421 + }
1.422 + }
1.423 + break;
1.424 + case 32:
1.425 + {
1.426 + for(long ycrd=0;ycrd<iBmpHeader.biHeight;ycrd++)
1.427 + {
1.428 + unsigned char* bytePtr = (unsigned char*)&pbmBits[ycrd*bytewidth];
1.429 + for(long xcrd=0;xcrd<iBmpHeader.biWidth;xcrd++)
1.430 + {
1.431 + TRgb col = GetBmpPixel(xcrd,ycrd);
1.432 + unsigned char alpha = useAlpha?GetAlphaPixel(xcrd,ycrd):(unsigned char)0;
1.433 + *bytePtr++ = (unsigned char) col.iBlue;
1.434 + *bytePtr++ = (unsigned char) col.iGreen;
1.435 + *bytePtr++ = (unsigned char) col.iRed;
1.436 + *bytePtr++ = alpha;
1.437 + }
1.438 + }
1.439 + }
1.440 + break;
1.441 + };
1.442 +
1.443 + return NoError;
1.444 + }
1.445 +