splashoutputdev.cc

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    }
  }

  switch (colorMode) {
  case splashModeMono1:
  case splashModeMono8:
    srcMode = maskColors ? splashModeAMono8 : splashModeMono8;
    break;
  case splashModeRGB8:
    srcMode = maskColors ? splashModeARGB8 : splashModeRGB8;
    break;
  case splashModeBGR8:
    srcMode = maskColors ? splashModeBGRA8 : splashModeBGR8;
    break;
#if SPLASH_CMYK
  case splashModeCMYK8:
    srcMode = maskColors ? splashModeACMYK8 : splashModeCMYK8;
    break;
#endif
  default:
    //~ unimplemented
    srcMode = splashModeRGB8;
    break;
  }  
  src = maskColors ? &alphaImageSrc : &imageSrc;
  splash->drawImage(src, &imgData, srcMode, width, height, mat);
  if (inlineImg) {
    while (imgData.y < height) {
      imgData.imgStr->getLine();
      ++imgData.y;
    }
  }

  gfree(imgData.lookup);
  delete imgData.imgStr;
  str->close();
}

struct SplashOutMaskedImageData {
  ImageStream *imgStr;
  GfxImageColorMap *colorMap;
  SplashBitmap *mask;
  SplashColorPtr lookup;
  SplashColorMode colorMode;
  int width, height, y;
};

GBool SplashOutputDev::maskedImageSrc(void *data, SplashColorPtr line) {
  SplashOutMaskedImageData *imgData = (SplashOutMaskedImageData *)data;
  Guchar *p;
  SplashColor maskColor;
  SplashColorPtr q, col;
  GfxRGB rgb;
  GfxGray gray;
#if SPLASH_CMYK
  GfxCMYK cmyk;
#endif
  Guchar alpha;
  int nComps, x;

  if (imgData->y == imgData->height) {
    return gFalse;
  }

  nComps = imgData->colorMap->getNumPixelComps();

  for (x = 0, p = imgData->imgStr->getLine(), q = line;
       x < imgData->width;
       ++x, p += nComps) {
    imgData->mask->getPixel(x, imgData->y, maskColor);
    alpha = maskColor[0] ? 0xff : 0x00;
    if (imgData->lookup) {
      switch (imgData->colorMode) {
      case splashModeMono1:
      case splashModeMono8:
	*q++ = alpha;
	*q++ = imgData->lookup[*p];
	break;
      case splashModeRGB8:
	*q++ = alpha;
	col = &imgData->lookup[3 * *p];
	*q++ = col[0];
	*q++ = col[1];
	*q++ = col[2];
	break;
      case splashModeBGR8:
	col = &imgData->lookup[3 * *p];
	*q++ = col[0];
	*q++ = col[1];
	*q++ = col[2];
	*q++ = alpha;
	break;
#if SPLASH_CMYK
      case splashModeCMYK8:
	*q++ = alpha;
	col = &imgData->lookup[4 * *p];
	*q++ = col[0];
	*q++ = col[1];
	*q++ = col[2];
	*q++ = col[3];
	break;
#endif
      case splashModeAMono8:
      case splashModeARGB8:
      case splashModeBGRA8:
#if SPLASH_CMYK
      case splashModeACMYK8:
#endif
	//~ unimplemented
	break;
      }
    } else {
      switch (imgData->colorMode) {
      case splashModeMono1:
      case splashModeMono8:
	imgData->colorMap->getGray(p, &gray);
	*q++ = alpha;
	*q++ = colToByte(gray);
	break;
      case splashModeRGB8:
	imgData->colorMap->getRGB(p, &rgb);
	*q++ = alpha;
	*q++ = colToByte(rgb.r);
	*q++ = colToByte(rgb.g);
	*q++ = colToByte(rgb.b);
	break;
      case splashModeBGR8:
	imgData->colorMap->getRGB(p, &rgb);
	*q++ = colToByte(rgb.b);
	*q++ = colToByte(rgb.g);
	*q++ = colToByte(rgb.r);
	*q++ = alpha;
	break;
#if SPLASH_CMYK
      case splashModeCMYK8:
	imgData->colorMap->getCMYK(p, &cmyk);
	*q++ = alpha;
	*q++ = colToByte(cmyk.c);
	*q++ = colToByte(cmyk.m);
	*q++ = colToByte(cmyk.y);
	*q++ = colToByte(cmyk.k);
	break;
#endif
      case splashModeAMono8:
      case splashModeARGB8:
      case splashModeBGRA8:
#if SPLASH_CMYK
      case splashModeACMYK8:
#endif
	//~ unimplemented
	break;
      }
    }
  }

  ++imgData->y;
  return gTrue;
}

void SplashOutputDev::drawMaskedImage(GfxState *state, Object *ref,
				      Stream *str, int width, int height,
				      GfxImageColorMap *colorMap,
				      Stream *maskStr, int maskWidth,
				      int maskHeight, GBool maskInvert) {
  double *ctm;
  SplashCoord mat[6];
  SplashOutMaskedImageData imgData;
  SplashOutImageMaskData imgMaskData;
  SplashColorMode srcMode;
  SplashBitmap *maskBitmap;
  Splash *maskSplash;
  SplashColor maskColor;
  GfxGray gray;
  GfxRGB rgb;
#if SPLASH_CMYK
  GfxCMYK cmyk;
#endif
  Guchar pix;
  int n, i;

  //----- scale the mask image to the same size as the source image

  mat[0] = (SplashCoord)width;
  mat[1] = 0;
  mat[2] = 0;
  mat[3] = (SplashCoord)height;
  mat[4] = 0;
  mat[5] = 0;
  imgMaskData.imgStr = new ImageStream(maskStr, maskWidth, 1, 1);
  imgMaskData.imgStr->reset();
  imgMaskData.invert = maskInvert ? 0 : 1;
  imgMaskData.width = maskWidth;
  imgMaskData.height = maskHeight;
  imgMaskData.y = 0;
  maskBitmap = new SplashBitmap(width, height, 1, splashModeMono1);
  maskSplash = new Splash(maskBitmap);
  maskColor[0] = 0;
  maskSplash->clear(maskColor);
  maskColor[0] = 1;
  maskSplash->setFillPattern(new SplashSolidColor(maskColor));
  maskSplash->fillImageMask(&imageMaskSrc, &imgMaskData,
			    maskWidth, maskHeight, mat);
  delete imgMaskData.imgStr;
  maskStr->close();
  delete maskSplash;

  //----- draw the source image

  ctm = state->getCTM();
  mat[0] = ctm[0];
  mat[1] = ctm[1];
  mat[2] = -ctm[2];
  mat[3] = -ctm[3];
  mat[4] = ctm[2] + ctm[4];
  mat[5] = ctm[3] + ctm[5];

  imgData.imgStr = new ImageStream(str, width,
				   colorMap->getNumPixelComps(),
				   colorMap->getBits());
  imgData.imgStr->reset();
  imgData.colorMap = colorMap;
  imgData.mask = maskBitmap;
  imgData.colorMode = colorMode;
  imgData.width = width;
  imgData.height = height;
  imgData.y = 0;

  // special case for one-channel (monochrome/gray/separation) images:
  // build a lookup table here
  imgData.lookup = NULL;
  if (colorMap->getNumPixelComps() == 1) {
    n = 1 << colorMap->getBits();
    switch (colorMode) {
    case splashModeMono1:
    case splashModeMono8:
      imgData.lookup = (SplashColorPtr)gmalloc(n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getGray(&pix, &gray);
	imgData.lookup[i] = colToByte(gray);
      }
      break;
    case splashModeRGB8:
      imgData.lookup = (SplashColorPtr)gmalloc(3 * n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getRGB(&pix, &rgb);
	imgData.lookup[3*i] = colToByte(rgb.r);
	imgData.lookup[3*i+1] = colToByte(rgb.g);
	imgData.lookup[3*i+2] = colToByte(rgb.b);
      }
      break;
    case splashModeBGR8:
      imgData.lookup = (SplashColorPtr)gmalloc(3 * n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getRGB(&pix, &rgb);
	imgData.lookup[3*i] = colToByte(rgb.b);
	imgData.lookup[3*i+1] = colToByte(rgb.g);
	imgData.lookup[3*i+2] = colToByte(rgb.r);
      }
      break;
#if SPLASH_CMYK
    case splashModeCMYK8:
      imgData.lookup = (SplashColorPtr)gmalloc(4 * n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getCMYK(&pix, &cmyk);
	imgData.lookup[4*i] = colToByte(cmyk.c);
	imgData.lookup[4*i+1] = colToByte(cmyk.m);
	imgData.lookup[4*i+2] = colToByte(cmyk.y);
	imgData.lookup[4*i+3] = colToByte(cmyk.k);
      }
      break;
#endif
    default:
      //~ unimplemented
      break;
    }
  }

  switch (colorMode) {
  case splashModeMono1:
  case splashModeMono8:
    srcMode = splashModeAMono8;
    break;
  case splashModeRGB8:
    srcMode = splashModeARGB8;
    break;
  case splashModeBGR8:
    srcMode = splashModeBGRA8;
    break;
#if SPLASH_CMYK
  case splashModeCMYK8:
    srcMode = splashModeACMYK8;
    break;
#endif
  default:
    //~ unimplemented
    srcMode = splashModeARGB8;
    break;
  }  
  splash->drawImage(&maskedImageSrc, &imgData, srcMode, width, height, mat);

  delete maskBitmap;
  gfree(imgData.lookup);
  delete imgData.imgStr;
  str->close();
}

void SplashOutputDev::drawSoftMaskedImage(GfxState *state, Object *ref,
					  Stream *str, int width, int height,
					  GfxImageColorMap *colorMap,
					  Stream *maskStr,
					  int maskWidth, int maskHeight,
					  GfxImageColorMap *maskColorMap) {
  double *ctm;
  SplashCoord mat[6];
  SplashOutImageData imgData;
  SplashOutImageData imgMaskData;
  SplashColorMode srcMode;
  SplashBitmap *maskBitmap;
  Splash *maskSplash;
  SplashColor maskColor;
  GfxGray gray;
  GfxRGB rgb;
#if SPLASH_CMYK
  GfxCMYK cmyk;
#endif
  Guchar pix;
  int n, i;

  ctm = state->getCTM();
  mat[0] = ctm[0];
  mat[1] = ctm[1];
  mat[2] = -ctm[2];
  mat[3] = -ctm[3];
  mat[4] = ctm[2] + ctm[4];
  mat[5] = ctm[3] + ctm[5];

  //----- set up the soft mask

  imgMaskData.imgStr = new ImageStream(maskStr, maskWidth,
				       maskColorMap->getNumPixelComps(),
				       maskColorMap->getBits());
  imgMaskData.imgStr->reset();
  imgMaskData.colorMap = maskColorMap;
  imgMaskData.maskColors = NULL;
  imgMaskData.colorMode = splashModeMono8;
  imgMaskData.width = maskWidth;
  imgMaskData.height = maskHeight;
  imgMaskData.y = 0;
  n = 1 << maskColorMap->getBits();
  imgMaskData.lookup = (SplashColorPtr)gmalloc(n);
  for (i = 0; i < n; ++i) {
    pix = (Guchar)i;
    maskColorMap->getGray(&pix, &gray);
    imgMaskData.lookup[i] = colToByte(gray);
  }
  maskBitmap = new SplashBitmap(bitmap->getWidth(), bitmap->getHeight(),
				1, splashModeMono8);
  maskSplash = new Splash(maskBitmap);
  maskColor[0] = 0;
  maskSplash->clear(maskColor);
  maskSplash->drawImage(&imageSrc, &imgMaskData,
			splashModeMono8, maskWidth, maskHeight, mat);
  delete imgMaskData.imgStr;
  maskStr->close();
  gfree(imgMaskData.lookup);
  delete maskSplash;
  splash->setSoftMask(maskBitmap);

  //----- draw the source image

  imgData.imgStr = new ImageStream(str, width,
				   colorMap->getNumPixelComps(),
				   colorMap->getBits());
  imgData.imgStr->reset();
  imgData.colorMap = colorMap;
  imgData.maskColors = NULL;
  imgData.colorMode = colorMode;
  imgData.width = width;
  imgData.height = height;
  imgData.y = 0;

  // special case for one-channel (monochrome/gray/separation) images:
  // build a lookup table here
  imgData.lookup = NULL;
  if (colorMap->getNumPixelComps() == 1) {
    n = 1 << colorMap->getBits();
    switch (colorMode) {
    case splashModeMono1:
    case splashModeMono8:
      imgData.lookup = (SplashColorPtr)gmalloc(n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getGray(&pix, &gray);
	imgData.lookup[i] = colToByte(gray);
      }
      break;
    case splashModeRGB8:
      imgData.lookup = (SplashColorPtr)gmalloc(3 * n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getRGB(&pix, &rgb);
	imgData.lookup[3*i] = colToByte(rgb.r);
	imgData.lookup[3*i+1] = colToByte(rgb.g);
	imgData.lookup[3*i+2] = colToByte(rgb.b);
      }
      break;
    case splashModeBGR8:
      imgData.lookup = (SplashColorPtr)gmalloc(3 * n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getRGB(&pix, &rgb);
	imgData.lookup[3*i] = colToByte(rgb.b);
	imgData.lookup[3*i+1] = colToByte(rgb.g);
	imgData.lookup[3*i+2] = colToByte(rgb.r);
      }
      break;
#if SPLASH_CMYK
    case splashModeCMYK8:
      imgData.lookup = (SplashColorPtr)gmalloc(4 * n);
      for (i = 0; i < n; ++i) {
	pix = (Guchar)i;
	colorMap->getCMYK(&pix, &cmyk);
	imgData.lookup[4*i] = colToByte(cmyk.c);
	imgData.lookup[4*i+1] = colToByte(cmyk.m);
	imgData.lookup[4*i+2] = colToByte(cmyk.y);
	imgData.lookup[4*i+3] = colToByte(cmyk.k);
      }
      break;
#endif
    default:
      //~ unimplemented
      break;
    }
  }

  switch (colorMode) {
  case splashModeMono1:
  case splashModeMono8:
    srcMode = splashModeMono8;
    break;
  case splashModeRGB8:
    srcMode = splashModeRGB8;
    break;
  case splashModeBGR8:
    srcMode = splashModeBGR8;
    break;
#if SPLASH_CMYK
  case splashModeCMYK8:
    srcMode = splashModeCMYK8;
    break;
#endif
  default:
    //~ unimplemented
    srcMode = splashModeRGB8;
    break;
  }  
  splash->drawImage(&imageSrc, &imgData, srcMode, width, height, mat);

  splash->setSoftMask(NULL);
  gfree(imgData.lookup);
  delete imgData.imgStr;
  str->close();
}

void SplashOutputDev::setPaperColor(SplashColorPtr paperColorA) {
  splashColorCopy(paperColor, paperColorA);
}

int SplashOutputDev::getBitmapWidth() {
  return bitmap->getWidth();
}

int SplashOutputDev::getBitmapHeight() {
  return bitmap->getHeight();
}

SplashBitmap *SplashOutputDev::takeBitmap() {
  SplashBitmap *ret;

  ret = bitmap;
  bitmap = new SplashBitmap(1, 1, bitmapRowPad, colorMode, bitmapTopDown);
  return ret;
}

void SplashOutputDev::getModRegion(int *xMin, int *yMin,
				   int *xMax, int *yMax) {
  splash->getModRegion(xMin, yMin, xMax, yMax);
}

void SplashOutputDev::clearModRegion() {
  splash->clearModRegion();
}

void SplashOutputDev::setFillColor(int r, int g, int b) {
  GfxRGB rgb;
  GfxGray gray;
#if SPLASH_CMYK
  GfxCMYK cmyk;
#endif

  rgb.r = byteToCol(r);
  rgb.g = byteToCol(g);
  rgb.b = byteToCol(b);
  gray = (GfxColorComp)(0