Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
#include "trop.h"
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Toshihiro Shimizu 890ddd
// TnzCore includes
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#include "tpixelgr.h"
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#include "trandom.h"
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#include "tpixelutils.h"
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//******************************************************************
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//    Conversion functions
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//******************************************************************
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Campbell Barton 8c6c57
static void do_convert(const TRaster64P &dst, const TRaster32P &src) {
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  assert(dst->getSize() == src->getSize());
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  int lx = src->getLx();
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  for (int y = 0; y < src->getLy(); y++) {
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    TPixel64 *outPix   = dst->pixels(y);
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    TPixel32 *inPix    = src->pixels(y);
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    TPixel32 *inEndPix = inPix + lx;
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    for (; inPix < inEndPix; ++outPix, ++inPix) {
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      outPix->r = ushortFromByte(inPix->r);
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      outPix->g = ushortFromByte(inPix->g);
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      outPix->b = ushortFromByte(inPix->b);
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      outPix->m = ushortFromByte(inPix->m);
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    }
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  }
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}
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//-----------------------------------------------------------------------------
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Campbell Barton 8c6c57
static void do_convert(const TRasterGR8P &dst, const TRaster32P &src) {
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  assert(dst->getSize() == src->getSize());
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  int lx = src->getLx();
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  for (int y = 0; y < src->getLy(); ++y) {
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    TPixelGR8 *outPix = dst->pixels(y);
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    TPixel32 *inPix = src->pixels(y), *inEndPix = inPix + lx;
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    for (; inPix < inEndPix; ++outPix, ++inPix)
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      *outPix = TPixelGR8::from(overPix(TPixel32::White, *inPix));
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  }
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}
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//-----------------------------------------------------------------------------
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static void do_convert(const TRasterGR16P &dst, const TRaster32P &src) {
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  assert(dst->getSize() == src->getSize());
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  int lx = src->getLx();
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  for (int y = 0; y < src->getLy(); ++y) {
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    TPixelGR16 *outPix = dst->pixels(y);
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    TPixel32 *inPix = src->pixels(y), *inEndPix = inPix + lx;
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    for (; inPix < inEndPix; ++outPix, ++inPix)
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      outPix->value =
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          257 * (TPixelGR8::from(overPix(TPixel32::White, *inPix))).value;
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  }
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}
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//-----------------------------------------------------------------------------
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Campbell Barton 8c6c57
static void do_convert(const TRasterGR16P &dst, const TRaster64P &src) {
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  assert(dst->getSize() == src->getSize());
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  int lx = src->getLx();
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  for (int y = 0; y < src->getLy(); y++) {
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    TPixelGR16 *outPix = dst->pixels(y);
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    TPixel64 *inPix    = src->pixels(y);
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    TPixel64 *inEndPix = inPix + lx;
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    while (inPix < inEndPix) {
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      outPix->value = (inPix->r + 2 * inPix->g + inPix->b) >> 2;
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      outPix++;
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      inPix++;
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    }
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  }
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}
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//-----------------------------------------------------------------------------
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Campbell Barton 8c6c57
static void do_convert(const TRaster32P &dst, const TRasterGR8P &src) {
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  assert(dst->getSize() == src->getSize());
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  int lx = src->getLx();
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  for (int y = 0; y < src->getLy(); y++) {
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    TPixel32 *outPix    = dst->pixels(y);
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    TPixelGR8 *inPix    = src->pixels(y);
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    TPixelGR8 *inEndPix = inPix + lx;
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    while (inPix < inEndPix) {
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      outPix->r = inPix->value;
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      outPix->g = inPix->value;
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      outPix->b = inPix->value;
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      outPix->m = 0xff;
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      outPix++;
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      inPix++;
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    }
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  }
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}
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//-----------------------------------------------------------------------------
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#define USHORT2BYTE_MAGICFAC (256U * 255U + 1U)
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inline UCHAR ditherUcharFromUshort(USHORT in, UINT rndNum) {
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  return ((((in * USHORT2BYTE_MAGICFAC) - ((in * USHORT2BYTE_MAGICFAC) >> 24)) +
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           rndNum) >>
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          24);
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}
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inline void ditherRgbmFromRgbm64(TPixel32 &out, const TPixel64 &in,
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                                 TRandom &rnd) {
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  UINT randomRound;
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  randomRound = rnd.getUInt() & ((1U << 24) - 1);
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  out.r = ditherUcharFromUshort(in.r, randomRound);
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  out.g = ditherUcharFromUshort(in.g, randomRound);
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  out.b = ditherUcharFromUshort(in.b, randomRound);
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  out.m = ditherUcharFromUshort(in.m, randomRound);
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}
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//-----------------------------------------------------------------------------
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inline void ditherConvert(TRaster64P inRas, TRaster32P outRas) {
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  int inWrap  = inRas->getWrap();
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  int outWrap = outRas->getWrap();
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  TPixel64 *inPix = 0, *inRow = inRas->pixels();
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  TPixel32 *outPix, *outRow   = outRas->pixels();
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  TPixel64 *endPix;
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  int inLx          = inRas->getLx();
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  TPixel64 *lastPix = inRow + inWrap * (inRas->getLy() - 1) + inLx;
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  TRandom rnd(130266);
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  while (inPix < lastPix) {
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    inPix  = inRow;
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    outPix = outRow;
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    endPix = inPix + inLx;
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    while (inPix < endPix) {
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      ditherRgbmFromRgbm64(*outPix, *inPix, rnd);
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      inPix++;
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      outPix++;
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    }
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    inRow += inWrap;
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    outRow += outWrap;
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  }
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}
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//******************************************************************
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//    Obsolete conversion functions
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//******************************************************************
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Campbell Barton 8c6c57
static void do_convert(const TRasterCM32P &dst, const TRasterGR8P &src) {
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  assert(dst->getSize() == src->getSize());
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  TPixelCM32 bg = TPixelCM32(0, 0, TPixelCM32::getMaxTone());
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  int lx = src->getLx();
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  for (int y = 0; y < src->getLy(); y++) {
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    TPixelCM32 *outPix  = dst->pixels(y);
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    TPixelGR8 *inPix    = src->pixels(y);
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    TPixelGR8 *inEndPix = inPix + lx;
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    while (inPix < inEndPix) {
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      *outPix = (inPix->value == 255) ? bg : TPixelCM32(1, 0, inPix->value);
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      outPix++;
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      inPix++;
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    }
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  }
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}
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//-----------------------------------------------------------------------------
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Campbell Barton 8c6c57
static void do_convert(const TRasterCM32P &dst, const TRaster32P &src) {
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  assert(dst->getSize() == src->getSize());
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  TPixelCM32 bg = TPixelCM32(0, 0, TPixelCM32::getMaxTone());
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  int lx = src->getLx();
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  bool isOverlay = false;
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  for (int y = 0; y < src->getLy(); y++)  // if it is an overlay, I use the
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                                          // matte value for inks, otherwise I
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                                          // use the brightness.
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  {
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    TPixel32 *inPix    = src->pixels(y);
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    TPixel32 *inEndPix = inPix + lx;
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    while (inPix < inEndPix) {
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      if (inPix->m != 255) {
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        isOverlay = true;
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        break;
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      }
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      inPix++;
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    }
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    if (isOverlay) break;
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  }
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  if (isOverlay)
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    for (int y = 0; y < src->getLy(); y++) {
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      TPixelCM32 *outPix = dst->pixels(y);
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      TPixel32 *inPix    = src->pixels(y);
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      TPixel32 *inEndPix = inPix + lx;
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      while (inPix < inEndPix) {
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        *outPix = (inPix->m == 0) ? bg : TPixelCM32(1, 0, 255 - inPix->m);
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        outPix++;
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        inPix++;
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      }
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    }
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  else
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    for (int y = 0; y < src->getLy(); y++) {
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      TPixelCM32 *outPix = dst->pixels(y);
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      TPixel32 *inPix    = src->pixels(y);
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      TPixel32 *inEndPix = inPix + lx;
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      while (inPix < inEndPix) {
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        UCHAR val = TPixelGR8::from(*inPix).value;
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        *outPix   = (val == 255) ? bg : TPixelCM32(1, 0, val);
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        outPix++;
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        inPix++;
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      }
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    }
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}
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//-----------------------------------------------------------------------------
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Campbell Barton 8c6c57
static void do_convert(const TRasterYUV422P &dst, const TRaster32P &src) {
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  assert(src->getLx() & 0);
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  long y1, y2, u, v, u1, u2, v1, v2;
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  TPixel32 *pix     = (TPixel32 *)src->pixels();
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  TPixel32 *lastPix = &(src->pixels(src->getLy() - 1)[src->getLx() - 1]);
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  UCHAR *out = dst->getRawData();
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  while (pix < lastPix) {
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    /* first pixel gives Y and 0.5 of chroma */
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    y1 = 16829 * pix->r + 33039 * pix->g + 6416 * pix->b;
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    u1 = -4831 * pix->r + -9488 * pix->g + 14319 * pix->b;
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    v1 = 14322 * pix->r + -11992 * pix->g + -2330 * pix->b;
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    /* second pixel gives Y and 0.5 of chroma */
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    ++pix;
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    y2 = 16829 * pix->r + 33039 * pix->g + 6416 * pix->b;
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    u2 = -4831 * pix->r + -9488 * pix->g + 14319 * pix->b;
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    v2 = 14322 * pix->r + -11992 * pix->g + -2330 * pix->b;
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    /* average the chroma */
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    u = u1 + u2;
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    v = v1 + v2;
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    /* round the chroma */
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    u1 = (u + 0x008000) >> 16;
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    v1 = (v + 0x008000) >> 16;
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    /* limit the chroma */
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    if (u1 < -112) u1 = -112;
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    if (u1 > 111) u1  = 111;
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    if (v1 < -112) v1 = -112;
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    if (v1 > 111) v1  = 111;
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    /* limit the lum */
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    if (y1 > 0x00dbffff) y1 = 0x00dbffff;
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    if (y2 > 0x00dbffff) y2 = 0x00dbffff;
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    /* save the results */
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    *out++ = (UCHAR)(u1 + 128);
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    *out++ = (UCHAR)((y1 >> 16) + 16);
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    *out++ = (UCHAR)(v1 + 128);
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    *out++ = (UCHAR)((y2 >> 16) + 16);
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    ++pix;
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  }
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}
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Toshihiro Shimizu 890ddd
//-----------------------------------------------------------------------------
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Campbell Barton 8c6c57
static void do_convert(const TRaster32P &dst, const TRasterYUV422P &src) {
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  int long r, g, b, y1, y2, u, v;
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  TPixel32 *buf     = dst->pixels();
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  const UCHAR *in   = src->getRawData();
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  const UCHAR *last = in + src->getRowSize() * src->getLy() - 1;
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  while (in < last) {
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    u = *in;
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    u -= 128;
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    in++;
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    y1 = *in;
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    y1 -= 16;
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    in++;
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    v = *in;
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    v -= 128;
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    in++;
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    y2 = *in;
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    y2 -= 16;
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    in++;
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    r                   = 76310 * y1 + 104635 * v;
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    if (r > 0xFFFFFF) r = 0xFFFFFF;
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    if (r <= 0xFFFF) r  = 0;
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    g                   = 76310 * y1 + -25690 * u + -53294 * v;
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    if (g > 0xFFFFFF) g = 0xFFFFFF;
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    if (g <= 0xFFFF) g  = 0;
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    b                   = 76310 * y1 + 132278 * u;
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    if (b > 0xFFFFFF) b = 0xFFFFFF;
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    if (b <= 0xFFFF) b  = 0;
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    buf->r = (UCHAR)(r >> 16);
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    buf->g = (UCHAR)(g >> 16);
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    buf->b = (UCHAR)(b >> 16);
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    buf->m = (UCHAR)255;
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    buf++;
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    r                   = 76310 * y2 + 104635 * v;
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    if (r > 0xFFFFFF) r = 0xFFFFFF;
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    if (r <= 0xFFFF) r  = 0;
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    g                   = 76310 * y2 + -25690 * u + -53294 * v;
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    if (g > 0xFFFFFF) g = 0xFFFFFF;
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    if (g <= 0xFFFF) g  = 0;
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    b                   = 76310 * y2 + 132278 * u;
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    if (b > 0xFFFFFF) b = 0xFFFFFF;
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    if (b <= 0xFFFF) b  = 0;
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    buf->r = (UCHAR)(r >> 16);
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    buf->g = (UCHAR)(g >> 16);
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    buf->b = (UCHAR)(b >> 16);
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    buf->m = (UCHAR)255;
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    buf++;
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  }
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}
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
//******************************************************************
Toshihiro Shimizu 890ddd
//    Main conversion function
Toshihiro Shimizu 890ddd
//******************************************************************
Toshihiro Shimizu 890ddd
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void TRop::convert(TRasterP dst, const TRasterP &src) {
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  if (dst->getSize() != src->getSize())
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    throw TRopException("convert: size mismatch");
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  TRaster32P dst32   = dst;
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  TRasterGR8P dst8   = dst;
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  TRasterGR16P dst16 = dst;
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  TRaster64P dst64   = dst;
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  TRasterCM32P dstCm = dst;
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  TRaster32P src32      = src;
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  TRasterGR8P src8      = src;
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  TRaster64P src64      = src;
Shinya Kitaoka 120a6e
  TRasterYUV422P srcYUV = src;
Shinya Kitaoka 120a6e
  TRasterYUV422P dstYUV = dst;
Shinya Kitaoka 120a6e
Shinya Kitaoka 120a6e
  src->lock();
Shinya Kitaoka 120a6e
  dst->lock();
Shinya Kitaoka 120a6e
Shinya Kitaoka 120a6e
  if (dst64 && src32)
Shinya Kitaoka 120a6e
    do_convert(dst64, src32);
Shinya Kitaoka 120a6e
  else if (dst8 && src32)
Shinya Kitaoka 120a6e
    do_convert(dst8, src32);
Shinya Kitaoka 120a6e
  else if (dst16 && src32)
Shinya Kitaoka 120a6e
    do_convert(dst16, src32);
Shinya Kitaoka 120a6e
  else if (dst32 && src64)
Shinya Kitaoka 120a6e
    ditherConvert(src64, dst32);
Shinya Kitaoka 120a6e
  else if (dst16 && src64)
Shinya Kitaoka 120a6e
    do_convert(dst16, src64);
Shinya Kitaoka 120a6e
  else if (dst32 && src8)
Shinya Kitaoka 120a6e
    do_convert(dst32, src8);
Shinya Kitaoka 120a6e
  else if (dstYUV && src32)
Shinya Kitaoka 120a6e
    do_convert(dstYUV, src32);  // Obsolete conversions
Shinya Kitaoka 120a6e
  else if (dst32 && srcYUV)
Shinya Kitaoka 120a6e
    do_convert(dst32, srcYUV);  //
Shinya Kitaoka 120a6e
  else if (dstCm && src32)
Shinya Kitaoka 120a6e
    do_convert(dstCm, src32);  //
Shinya Kitaoka 120a6e
  else if (dstCm && src8)
Shinya Kitaoka 120a6e
    do_convert(dstCm, src8);  //
Shinya Kitaoka 120a6e
  else {
Shinya Kitaoka 120a6e
    dst->unlock();
Shinya Kitaoka 120a6e
    src->unlock();
Shinya Kitaoka 120a6e
Shinya Kitaoka 120a6e
    throw TRopException("unsupported pixel type");
Shinya Kitaoka 120a6e
  }
Shinya Kitaoka 120a6e
Shinya Kitaoka 120a6e
  dst->unlock();
Shinya Kitaoka 120a6e
  src->unlock();
Toshihiro Shimizu 890ddd
}