cmspack.c

Linux下的无线网卡通用驱动程序

                                if (T_FLAVOR(dwInput))
                                    FromInput = Unroll4BytesReverse;
                                else
                                    FromInput = Unroll4Bytes;
                            }
                      }
                      break;


              case 5:
              case 6:
              case 7:
              case 8:
                   if (!T_DOSWAP(dwInput) && !T_SWAPFIRST(dwInput))
                       FromInput = UnrollAnyBytes;
                   break;

                    
              default:;
              }
              break;


       case 2: // 1 word per channel

              switch (T_CHANNELS(dwInput) + T_EXTRA(dwInput))
              {
              case 1: if (T_ENDIAN16(dwInput))
                            FromInput = Unroll1WordBigEndian;
                      else
                          if (T_FLAVOR(dwInput))
                                FromInput = Unroll1WordReversed;
                            else
                                  FromInput = Unroll1Word;
                      break;

              case 2: if (T_ENDIAN16(dwInput))
                            FromInput = Unroll2WordBigEndian;
                        else {
                          if (T_SWAPFIRST(dwInput))
                              FromInput = Unroll2WordSwapFirst;
                          else 
                              FromInput = Unroll2Word;              
                        }
                        break;

              case 3: if (T_DOSWAP(dwInput)) {
                            if (T_ENDIAN16(dwInput))
                                   FromInput = Unroll3WordsSwapBigEndian;
                            else
                                   FromInput = Unroll3WordsSwap;
                      }
                      else {
                            if (T_ENDIAN16(dwInput))
                                   FromInput = Unroll3WordsBigEndian;
                            else
                                   FromInput = Unroll3Words;
                      }
                      break;

              case 4: if (T_DOSWAP(dwInput)) {

                            if (T_ENDIAN16(dwInput))
                                   FromInput = Unroll4WordsSwapBigEndian;
                            else {
                                   
                                    if (T_SWAPFIRST(dwInput))
                                        FromInput = Unroll4WordsSwapSwapFirst;
                                    else 
                                        FromInput = Unroll4WordsSwap;

                            }
                            
                      }
                      else {

                            if (T_EXTRA(dwInput) == 3)
                                    FromInput = Unroll1WordSkip3;
                            else

                                if (T_ENDIAN16(dwInput)) {

                                    if (T_FLAVOR(dwInput))
                                        FromInput = Unroll4WordsBigEndianReverse;
                                    else
                                        FromInput = Unroll4WordsBigEndian;
                                }
                            else {
                                  if (T_SWAPFIRST(dwInput))
                                    FromInput = Unroll4WordsSwapFirst;
                                  else {
                                      if (T_FLAVOR(dwInput))
                                            FromInput = Unroll4WordsReverse;
                                      else
                                            FromInput = Unroll4Words;                                    
                                  }
                            }
                      }
                      break;


              case 5:
              case 6:
              case 7:
              case 8:
                    if (!T_DOSWAP(dwInput) && !T_SWAPFIRST(dwInput))
                       FromInput = UnrollAnyWords;
                    break;

              }
              break;

       default:;
       }
       }
       }


       if (!FromInput)
              cmsSignalError(LCMS_ERRC_ABORTED, "Unknown input format");

       return FromInput;
}

//  choose routine from Input identifier

_cmsFIXFN _cmsIdentifyOutputFormat(_LPcmsTRANSFORM xform, DWORD dwOutput)
{
       _cmsFIXFN ToOutput = NULL;


       if (T_BYTES(dwOutput) == 0) {

           switch (T_COLORSPACE(dwOutput)) {
               
           case PT_Lab: 
                    ToOutput = PackLabDouble;
                    break;
           case PT_XYZ: 
                    ToOutput = PackXYZDouble;
                    break;

           // 0.0 .. 1.0 range
           case PT_GRAY:
           case PT_RGB:
           case PT_YCbCr:
           case PT_YUV:
           case PT_YUVK:
           case PT_HSV:
           case PT_HLS:
           case PT_Yxy: 
                    ToOutput = PackDouble;
                    break;

            // Inks (%) 0.0 .. 100.0

           default:
                    ToOutput = PackInkDouble;
                    break;
           }
                    
       }
       else 

       if (T_PLANAR(dwOutput)) {

       switch (T_BYTES(dwOutput)) {

              case 1: ToOutput = PackPlanarBytes;
                      break;

              case 2:if (!T_ENDIAN16(dwOutput))
                            ToOutput = PackPlanarWords;
                      break;

              default:;
       }
       }
       else {

              switch (T_BYTES(dwOutput)) {

              case 1:
                     switch (T_CHANNELS(dwOutput))
                     {
                     case 1:
                            ToOutput = Pack1Byte;
                            if (T_EXTRA(dwOutput) == 1) {
                                if (T_SWAPFIRST(dwOutput))
                                   ToOutput = Pack1ByteAndSkip1SwapFirst;
                                else
                                   ToOutput = Pack1ByteAndSkip1;
                            }
                            break;

                     case 3:
                         switch (T_EXTRA(dwOutput)) {

                         case 0: if (T_DOSWAP(dwOutput))
                                   ToOutput = Pack3BytesSwap;
                                 else
                                     if (T_COLORSPACE(dwOutput) == PT_Lab)
                                        ToOutput = Pack3BytesLab;
                                     else
                                        ToOutput = Pack3Bytes;
                             break;

                         case 1:    // TODO: ALab8 should be handled here
                             
                                    if (T_DOSWAP(dwOutput)) {

                                    if (T_SWAPFIRST(dwOutput))  
                                        ToOutput = Pack3BytesAndSkip1SwapSwapFirst;
                                    else
                                        ToOutput = Pack3BytesAndSkip1Swap;
                                 }
                             else {
                                   if (T_SWAPFIRST(dwOutput))
                                    ToOutput = Pack3BytesAndSkip1SwapFirst;
                                   else 
                                    ToOutput = Pack3BytesAndSkip1;
                             }
                             break;

                         default:;
                         }
                         break;

                     case 4: if (T_EXTRA(dwOutput) == 0) {
                            
                                if (T_DOSWAP(dwOutput)) {

                                     if (T_SWAPFIRST(dwOutput))
                                         ToOutput = Pack4BytesSwapSwapFirst;
                                     else
                                         ToOutput = Pack4BytesSwap;
                                 }
                                 else {
                                     if (T_SWAPFIRST(dwOutput))
                                         ToOutput = Pack4BytesSwapFirst;
                                     else {
                                         
                                         if (T_FLAVOR(dwOutput))
                                             ToOutput = Pack4BytesReverse;
                                         else
                                             ToOutput = Pack4Bytes;
                                     }
                                 }
                             }
                            else {
                                    if (!T_DOSWAP(dwOutput) && !T_SWAPFIRST(dwOutput))
                                             ToOutput = PackNBytes;
                            }
                            break;

                     // Hexachrome separations.
                     case 6: if (T_EXTRA(dwOutput) == 0) {

                                    if( T_DOSWAP(dwOutput))
                                            ToOutput = Pack6BytesSwap;
                            else
                                   ToOutput = Pack6Bytes;
                            }
                            else {
                                    if (!T_DOSWAP(dwOutput) && !T_SWAPFIRST(dwOutput))
                                             ToOutput = PackNBytes;

                            }
                            break;

					 case 2:
                     case 5:
                     case 7:
                     case 8:
                     case 9:
                     case 10:
                     case 11:
                     case 12:
                     case 13:
                     case 14:
                     case 15:

                            if ((T_EXTRA(dwOutput) == 0) && (T_SWAPFIRST(dwOutput) == 0))
                            {
                                   if (T_DOSWAP(dwOutput))
                                          ToOutput = PackNBytesSwap;
                                   else
                                          ToOutput = PackNBytes;
                            }
                            break;

                     default:;
                     }
                     break;


              case 2:

                     switch (T_CHANNELS(dwOutput)) {

                     case 1:
                            if (T_ENDIAN16(dwOutput))

                                   ToOutput = Pack1WordBigEndian;
                            else
                                   ToOutput = Pack1Word;

                            if (T_EXTRA(dwOutput) == 1) {

                               if (T_ENDIAN16(dwOutput))

                                   ToOutput = Pack1WordAndSkip1BigEndian;
                               else {
                                   if (T_SWAPFIRST(dwOutput))
                                      ToOutput = Pack1WordAndSkip1SwapFirst;
                                   else 
                                      ToOutput = Pack1WordAndSkip1;
                               }
                            }
                            break;

                     case 3:

                         switch (T_EXTRA(dwOutput)) {

                         case 0:
                               if (T_DOSWAP(dwOutput)) {

                                   if (T_ENDIAN16(dwOutput))

                                          ToOutput = Pack3WordsSwapBigEndian;
                                   else
                                          ToOutput = Pack3WordsSwap;
                               }
                               else {
                                   if (T_ENDIAN16(dwOutput))

                                      ToOutput = Pack3WordsBigEndian;
                                   else
                                      ToOutput = Pack3Words;
                                   }
                             break;

                         case 1: if (T_DOSWAP(dwOutput)) {

                                   if (T_ENDIAN16(dwOutput))

                                          ToOutput = Pack3WordsAndSkip1SwapBigEndian;
                                   else {
                                       if (T_SWAPFIRST(dwOutput)) 
                                          ToOutput = Pack3WordsAndSkip1SwapSwapFirst;
                                       else 
                                          ToOutput = Pack3WordsAndSkip1Swap;
                                   }
                             }
                             else  {
                                   if (T_ENDIAN16(dwOutput))
                                          ToOutput = Pack3WordsAndSkip1BigEndian;
                                   else
                                          ToOutput = Pack3WordsAndSkip1;
                                   }
                         default:;
                         }
                         break;

                     case 4: if (T_EXTRA(dwOutput) == 0) {

                                   if (T_DOSWAP(dwOutput)) {

                                           if (T_ENDIAN16(dwOutput))
                                                 ToOutput = Pack4WordsSwapBigEndian;
                                           else
                                                 ToOutput = Pack4WordsSwap;
                                   }
                                   else {

                                       if (T_ENDIAN16(dwOutput)) {
                                              
                                           if (T_FLAVOR(dwOutput))
                                                ToOutput = Pack4WordsBigEndianReverse;
                                           else
                                                ToOutput = Pack4WordsBigEndian;
                                       }
                                       else {
                                          if (T_FLAVOR(dwOutput))
                                              ToOutput = Pack4WordsReverse;
                                          else 
                                               ToOutput = Pack4Words;
                                        }
                                   }
                            }
                            else {
                                    if (!T_DOSWAP(dwOutput) && !T_SWAPFIRST(dwOutput))
                                             ToOutput = PackNWords;
                            }                            
                            break;

                     case 6: if (T_EXTRA(dwOutput) == 0) {

                                   if (T_DOSWAP(dwOutput)) {

                                          if (T_ENDIAN16(dwOutput))
                                                 ToOutput = Pack6WordsSwapBigEndian;
                                          else
                                                 ToOutput = Pack6WordsSwap;
                                   }
                                   else {

                                   if (T_ENDIAN16(dwOutput))
                                          ToOutput = Pack6WordsBigEndian;
                                   else
                                          ToOutput = Pack6Words;
                                   }
                             }
                            else {
                                    if (!T_DOSWAP(dwOutput) && !T_SWAPFIRST(dwOutput))
                                             ToOutput = PackNWords;
                            }                            
                            break;


					 case 2:
                     case 5:
                     case 7:
                     case 8:
                     case 9:
                     case 10:
                     case 11:
                     case 12:
                     case 13:
                     case 14:
                     case 15: if ((T_EXTRA(dwOutput) == 0) && (T_SWAPFIRST(dwOutput) == 0)) {

                                   if (T_DOSWAP(dwOutput)) {

                                          if (T_ENDIAN16(dwOutput))
                                                 ToOutput = PackNWordsSwapBigEndian;
                                          else
                                                 ToOutput = PackNWordsSwap;
                                   }
                                   else {

                                          if (T_ENDIAN16(dwOutput))
                                                 ToOutput = PackNWordsBigEndian;
                                          else
                                                 ToOutput = PackNWords;
                                          }
                             }
                             break;

                     default:;
                     }
                     break;

              default:;
              }
              }

              if (!ToOutput)
                     cmsSignalError(LCMS_ERRC_ABORTED, "Unknown output format");

              return ToOutput;
}

// User formatters for (weird) cases not already included

void LCMSEXPORT cmsSetUserFormatters(cmsHTRANSFORM hTransform, DWORD dwInput,  cmsFORMATTER Input,
                                                               DWORD dwOutput, cmsFORMATTER Output)
{
    _LPcmsTRANSFORM xform = (_LPcmsTRANSFORM) (LPSTR) hTransform;
    
    if (Input != NULL) {
        xform ->FromInput = (_cmsFIXFN) Input;
        xform ->InputFormat = dwInput;
    }

    if (Output != NULL) {
        xform ->ToOutput  = (_cmsFIXFN) Output;
        xform ->OutputFormat = dwOutput;
    }

}

void LCMSEXPORT cmsGetUserFormatters(cmsHTRANSFORM hTransform, 
                                     LPDWORD InputFormat, cmsFORMATTER* Input, 
                                     LPDWORD OutputFormat, cmsFORMATTER* Output)
{
    _LPcmsTRANSFORM xform = (_LPcmsTRANSFORM) (LPSTR) hTransform;
    
    *Input =  (cmsFORMATTER) xform ->FromInput;
    *InputFormat = xform -> InputFormat;
    *Output = (cmsFORMATTER) xform ->ToOutput;
    *OutputFormat = xform -> OutputFormat;
}


// Change format of yet existing transform. No colorspace checking is performed

void LCMSEXPORT cmsChangeBuffersFormat(cmsHTRANSFORM hTransform, 
                                        DWORD dwInputFormat, 
                                        DWORD dwOutputFormat)
{

    cmsSetUserFormatters(hTransform, 
                        dwInputFormat,
                        (cmsFORMATTER) _cmsIdentifyInputFormat((_LPcmsTRANSFORM ) hTransform, dwInputFormat),
                        dwOutputFormat,
                        (cmsFORMATTER) _cmsIdentifyOutputFormat((_LPcmsTRANSFORM ) hTransform, dwOutputFormat));
}