--- /dev/null
+/*
+ * "$Id: image-tiff.c 4741 2005-10-02 04:25:52Z mike $"
+ *
+ * TIFF file routines for the Common UNIX Printing System (CUPS).
+ *
+ * Copyright 1993-2005 by Easy Software Products.
+ *
+ * These coded instructions, statements, and computer programs are the
+ * property of Easy Software Products and are protected by Federal
+ * copyright law. Distribution and use rights are outlined in the file
+ * "LICENSE.txt" which should have been included with this file. If this
+ * file is missing or damaged please contact Easy Software Products
+ * at:
+ *
+ * Attn: CUPS Licensing Information
+ * Easy Software Products
+ * 44141 Airport View Drive, Suite 204
+ * Hollywood, Maryland 20636 USA
+ *
+ * Voice: (301) 373-9600
+ * EMail: cups-info@cups.org
+ * WWW: http://www.cups.org
+ *
+ * This file is subject to the Apple OS-Developed Software exception.
+ *
+ * Contents:
+ *
+ * _cupsImageReadTIFF() - Read a TIFF image file.
+ */
+
+/*
+ * Include necessary headers...
+ */
+
+#include "image-private.h"
+
+#ifdef HAVE_LIBTIFF
+# include <tiff.h> /* TIFF image definitions */
+# include <tiffio.h>
+# include <unistd.h>
+
+
+/*
+ * '_cupsImageReadTIFF()' - Read a TIFF image file.
+ */
+
+int /* O - Read status */
+_cupsImageReadTIFF(
+ cups_image_t *img, /* IO - cupsImage */
+ FILE *fp, /* I - cupsImage file */
+ cups_icspace_t primary, /* I - Primary choice for colorspace */
+ cups_icspace_t secondary, /* I - Secondary choice for colorspace */
+ int saturation, /* I - Color saturation (%) */
+ int hue, /* I - Color hue (degrees) */
+ const cups_ib_t *lut) /* I - Lookup table for gamma/brightness */
+{
+ TIFF *tif; /* TIFF file */
+ uint32 width, height; /* Size of image */
+ uint16 photometric, /* Colorspace */
+ compression, /* Type of compression */
+ orientation, /* Orientation */
+ resunit, /* Units for resolution */
+ samples, /* Number of samples/pixel */
+ bits, /* Number of bits/pixel */
+ inkset, /* Ink set for color separations */
+ numinks; /* Number of inks in set */
+ float xres, /* Horizontal resolution */
+ yres; /* Vertical resolution */
+ uint16 *redcmap, /* Red colormap information */
+ *greencmap, /* Green colormap information */
+ *bluecmap; /* Blue colormap information */
+ int c, /* Color index */
+ num_colors, /* Number of colors */
+ bpp, /* Bytes per pixel */
+ x, y, /* Current x & y */
+ row, /* Current row in image */
+ xstart, ystart, /* Starting x & y */
+ xdir, ydir, /* X & y direction */
+ xcount, ycount, /* X & Y counters */
+ pstep, /* Pixel step (= bpp or -2 * bpp) */
+ scanwidth, /* Width of scanline */
+ r, g, b, k, /* Red, green, blue, and black values */
+ alpha; /* cupsImage includes alpha? */
+ cups_ib_t *in, /* Input buffer */
+ *out, /* Output buffer */
+ *p, /* Pointer into buffer */
+ *scanline, /* Scanline buffer */
+ *scanptr, /* Pointer into scanline buffer */
+ bit, /* Current bit */
+ pixel, /* Current pixel */
+ zero, /* Zero value (bitmaps) */
+ one; /* One value (bitmaps) */
+
+
+ /*
+ * Open the TIFF file and get the required parameters...
+ */
+
+ lseek(fileno(fp), 0, SEEK_SET); /* Work around "feature" in some stdio's */
+
+ if ((tif = TIFFFdOpen(fileno(fp), "", "r")) == NULL)
+ {
+ fputs("ERROR: TIFFFdOpen() failed!\n", stderr);
+ fclose(fp);
+ return (-1);
+ }
+
+ if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width))
+ {
+ fputs("ERROR: No image width tag in the file!\n", stderr);
+ TIFFClose(tif);
+ fclose(fp);
+ return (-1);
+ }
+
+ if (!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height))
+ {
+ fputs("ERROR: No image height tag in the file!\n", stderr);
+ TIFFClose(tif);
+ fclose(fp);
+ return (-1);
+ }
+
+ if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric))
+ {
+ fputs("ERROR: No photometric tag in the file!\n", stderr);
+ TIFFClose(tif);
+ fclose(fp);
+ return (-1);
+ }
+
+ if (!TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression))
+ {
+ fputs("ERROR: No compression tag in the file!\n", stderr);
+ TIFFClose(tif);
+ fclose(fp);
+ return (-1);
+ }
+
+ if (!TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &samples))
+ samples = 1;
+
+ if (!TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bits))
+ bits = 1;
+
+ /*
+ * Get the image orientation...
+ */
+
+ if (!TIFFGetField(tif, TIFFTAG_ORIENTATION, &orientation))
+ orientation = 0;
+
+ /*
+ * Get the image resolution...
+ */
+
+ if (TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) &&
+ TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) &&
+ TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &resunit))
+ {
+ if (resunit == RESUNIT_INCH)
+ {
+ img->xppi = xres;
+ img->yppi = yres;
+ }
+ else if (resunit == RESUNIT_CENTIMETER)
+ {
+ img->xppi = xres * 2.54;
+ img->yppi = yres * 2.54;
+ }
+ else
+ {
+ img->xppi = 128;
+ img->yppi = 128;
+ }
+
+ if (img->xppi == 0 || img->yppi == 0)
+ {
+ fputs("ERROR: Bad TIFF resolution.\n", stderr);
+ img->xppi = img->yppi = 128;
+ }
+
+ fprintf(stderr, "DEBUG: TIFF resolution = %fx%f, units=%d\n",
+ xres, yres, resunit);
+ fprintf(stderr, "DEBUG: Stored resolution = %dx%d PPI\n",
+ img->xppi, img->yppi);
+ }
+
+ /*
+ * See if the image has an alpha channel...
+ */
+
+ if (samples == 2 || (samples == 4 && photometric == PHOTOMETRIC_RGB))
+ alpha = 1;
+ else
+ alpha = 0;
+
+ /*
+ * Check the size of the image...
+ */
+
+ if (width == 0 || width > CUPS_IMAGE_MAX_WIDTH ||
+ height == 0 || height > CUPS_IMAGE_MAX_HEIGHT ||
+ (bits != 1 && bits != 2 && bits != 4 && bits != 8) ||
+ samples < 1 || samples > 4)
+ {
+ fprintf(stderr, "ERROR: Bad TIFF dimensions %ux%ux%ux%u!\n",
+ (unsigned)width, (unsigned)height, (unsigned)bits,
+ (unsigned)samples);
+ TIFFClose(tif);
+ fclose(fp);
+ return (1);
+ }
+
+ /*
+ * Setup the image size and colorspace...
+ */
+
+ img->xsize = width;
+ img->ysize = height;
+ if (photometric == PHOTOMETRIC_MINISBLACK ||
+ photometric == PHOTOMETRIC_MINISWHITE)
+ img->colorspace = secondary;
+ else if (photometric == PHOTOMETRIC_SEPARATED && primary == CUPS_IMAGE_RGB_CMYK)
+ img->colorspace = CUPS_IMAGE_CMYK;
+ else if (primary == CUPS_IMAGE_RGB_CMYK)
+ img->colorspace = CUPS_IMAGE_RGB;
+ else
+ img->colorspace = primary;
+
+ fprintf(stderr, "DEBUG: img->colorspace = %d\n", img->colorspace);
+
+ bpp = cupsImageGetDepth(img);
+
+ cupsImageSetMaxTiles(img, 0);
+
+ /*
+ * Set the X & Y start and direction according to the image orientation...
+ */
+
+ switch (orientation)
+ {
+ case ORIENTATION_TOPRIGHT :
+ fputs("DEBUG: orientation = top-right\n", stderr);
+ break;
+ case ORIENTATION_RIGHTTOP :
+ fputs("DEBUG: orientation = right-top\n", stderr);
+ break;
+ default :
+ case ORIENTATION_TOPLEFT :
+ fputs("DEBUG: orientation = top-left\n", stderr);
+ break;
+ case ORIENTATION_LEFTTOP :
+ fputs("DEBUG: orientation = left-top\n", stderr);
+ break;
+ case ORIENTATION_BOTLEFT :
+ fputs("DEBUG: orientation = bottom-left\n", stderr);
+ break;
+ case ORIENTATION_LEFTBOT :
+ fputs("DEBUG: orientation = left-bottom\n", stderr);
+ break;
+ case ORIENTATION_BOTRIGHT :
+ fputs("DEBUG: orientation = bottom-right\n", stderr);
+ break;
+ case ORIENTATION_RIGHTBOT :
+ fputs("DEBUG: orientation = right-bottom\n", stderr);
+ break;
+ }
+
+ switch (orientation)
+ {
+ case ORIENTATION_TOPRIGHT :
+ case ORIENTATION_RIGHTTOP :
+ xstart = img->xsize - 1;
+ xdir = -1;
+ ystart = 0;
+ ydir = 1;
+ break;
+ default :
+ case ORIENTATION_TOPLEFT :
+ case ORIENTATION_LEFTTOP :
+ xstart = 0;
+ xdir = 1;
+ ystart = 0;
+ ydir = 1;
+ break;
+ case ORIENTATION_BOTLEFT :
+ case ORIENTATION_LEFTBOT :
+ xstart = 0;
+ xdir = 1;
+ ystart = img->ysize - 1;
+ ydir = -1;
+ break;
+ case ORIENTATION_BOTRIGHT :
+ case ORIENTATION_RIGHTBOT :
+ xstart = img->xsize - 1;
+ xdir = -1;
+ ystart = img->ysize - 1;
+ ydir = -1;
+ break;
+ }
+
+ /*
+ * Allocate a scanline buffer...
+ */
+
+ scanwidth = TIFFScanlineSize(tif);
+ scanline = _TIFFmalloc(scanwidth);
+
+ /*
+ * Allocate input and output buffers...
+ */
+
+ if (orientation < ORIENTATION_LEFTTOP)
+ {
+ if (samples > 1 || photometric == PHOTOMETRIC_PALETTE)
+ pstep = xdir * 3;
+ else
+ pstep = xdir;
+
+ in = malloc(img->xsize * 3 + 3);
+ out = malloc(img->xsize * bpp);
+ }
+ else
+ {
+ if (samples > 1 || photometric == PHOTOMETRIC_PALETTE)
+ pstep = ydir * 3;
+ else
+ pstep = ydir;
+
+ in = malloc(img->ysize * 3 + 3);
+ out = malloc(img->ysize * bpp);
+ }
+
+ /*
+ * Read the image. This is greatly complicated by the fact that TIFF
+ * supports literally hundreds of different colorspaces and orientations,
+ * each which must be handled separately...
+ */
+
+ fprintf(stderr, "DEBUG: photometric = %d\n", photometric);
+ fprintf(stderr, "DEBUG: compression = %d\n", compression);
+
+ switch (photometric)
+ {
+ case PHOTOMETRIC_MINISWHITE :
+ case PHOTOMETRIC_MINISBLACK :
+ if (photometric == PHOTOMETRIC_MINISWHITE)
+ {
+ zero = 255;
+ one = 0;
+ }
+ else
+ {
+ zero = 0;
+ one = 255;
+ }
+
+ if (orientation < ORIENTATION_LEFTTOP)
+ {
+ /*
+ * Row major order...
+ */
+
+ for (y = ystart, ycount = img->ysize, row = 0;
+ ycount > 0;
+ ycount --, y += ydir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart, bit = 128;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ if (*scanptr & bit)
+ *p = one;
+ else
+ *p = zero;
+
+ if (bit > 1)
+ bit >>= 1;
+ else
+ {
+ bit = 128;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart, bit = 0xc0;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ pixel = *scanptr & bit;
+ while (pixel > 3)
+ pixel >>= 2;
+ *p = (255 * pixel / 3) ^ zero;
+
+ if (bit > 3)
+ bit >>= 2;
+ else
+ {
+ bit = 0xc0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart, bit = 0xf0;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ if (bit == 0xf0)
+ {
+ *p = (255 * ((*scanptr & 0xf0) >> 4) / 15) ^ zero;
+ bit = 0x0f;
+ }
+ else
+ {
+ *p = (255 * (*scanptr & 0x0f) / 15) ^ zero;
+ bit = 0xf0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (xdir < 0 || zero || alpha)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ if (alpha)
+ {
+ if (zero)
+ {
+ for (xcount = img->xsize, p = in + xstart, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep, scanptr += 2)
+ *p = (scanptr[1] * (255 - scanptr[0]) +
+ (255 - scanptr[1]) * 255) / 255;
+ }
+ else
+ {
+ for (xcount = img->xsize, p = in + xstart, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep, scanptr += 2)
+ *p = (scanptr[1] * scanptr[0] +
+ (255 - scanptr[1]) * 255) / 255;
+ }
+ }
+ else
+ {
+ if (zero)
+ {
+ for (xcount = img->xsize, p = in + xstart, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep, scanptr ++)
+ *p = 255 - *scanptr;
+ }
+ else
+ {
+ for (xcount = img->xsize, p = in + xstart, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep, scanptr ++)
+ *p = *scanptr;
+ }
+ }
+ }
+ else
+ TIFFReadScanline(tif, in, row, 0);
+
+ if (img->colorspace == CUPS_IMAGE_WHITE)
+ {
+ if (lut)
+ cupsImageLut(in, img->xsize, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, in);
+ }
+ else
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_RGB :
+ cupsImageWhiteToRGB(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageWhiteToBlack(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageWhiteToCMY(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageWhiteToCMYK(in, out, img->xsize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->xsize * bpp, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, out);
+ }
+ }
+ }
+ else
+ {
+ /*
+ * Column major order...
+ */
+
+ for (x = xstart, xcount = img->xsize, row = 0;
+ xcount > 0;
+ xcount --, x += xdir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + ystart, bit = 128;
+ ycount > 0;
+ ycount --, p += ydir)
+ {
+ if (*scanptr & bit)
+ *p = one;
+ else
+ *p = zero;
+
+ if (bit > 1)
+ bit >>= 1;
+ else
+ {
+ bit = 128;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + ystart, bit = 0xc0;
+ ycount > 0;
+ ycount --, p += ydir)
+ {
+ pixel = *scanptr & 0xc0;
+ while (pixel > 3)
+ pixel >>= 2;
+
+ *p = (255 * pixel / 3) ^ zero;
+
+ if (bit > 3)
+ bit >>= 2;
+ else
+ {
+ bit = 0xc0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + ystart, bit = 0xf0;
+ ycount > 0;
+ ycount --, p += ydir)
+ {
+ if (bit == 0xf0)
+ {
+ *p = (255 * ((*scanptr & 0xf0) >> 4) / 15) ^ zero;
+ bit = 0x0f;
+ }
+ else
+ {
+ *p = (255 * (*scanptr & 0x0f) / 15) ^ zero;
+ bit = 0xf0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (ydir < 0 || zero || alpha)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ if (alpha)
+ {
+ if (zero)
+ {
+ for (ycount = img->ysize, p = in + ystart, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += ydir, scanptr += 2)
+ *p = (scanptr[1] * (255 - scanptr[0]) +
+ (255 - scanptr[1]) * 255) / 255;
+ }
+ else
+ {
+ for (ycount = img->ysize, p = in + ystart, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += ydir, scanptr += 2)
+ *p = (scanptr[1] * scanptr[0] +
+ (255 - scanptr[1]) * 255) / 255;
+ }
+ }
+ else
+ {
+ if (zero)
+ {
+ for (ycount = img->ysize, p = in + ystart, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += ydir, scanptr ++)
+ *p = 255 - *scanptr;
+ }
+ else
+ {
+ for (ycount = img->ysize, p = in + ystart, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += ydir, scanptr ++)
+ *p = *scanptr;
+ }
+ }
+ }
+ else
+ TIFFReadScanline(tif, in, row, 0);
+
+ if (img->colorspace == CUPS_IMAGE_WHITE)
+ {
+ if (lut)
+ cupsImageLut(in, img->ysize, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, in);
+ }
+ else
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_RGB :
+ cupsImageWhiteToRGB(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageWhiteToBlack(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageWhiteToCMY(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageWhiteToCMYK(in, out, img->ysize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->ysize * bpp, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, out);
+ }
+ }
+ }
+ break;
+
+ case PHOTOMETRIC_PALETTE :
+ if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &redcmap, &greencmap, &bluecmap))
+ {
+ fputs("ERROR: No colormap tag in the file!\n", stderr);
+ fclose(fp);
+ return (-1);
+ }
+
+ num_colors = 1 << bits;
+
+ for (c = 0; c < num_colors; c ++)
+ {
+ redcmap[c] >>= 8;
+ greencmap[c] >>= 8;
+ bluecmap[c] >>= 8;
+ }
+
+ if (orientation < ORIENTATION_LEFTTOP)
+ {
+ /*
+ * Row major order...
+ */
+
+ for (y = ystart, ycount = img->ysize, row = 0;
+ ycount > 0;
+ ycount --, y += ydir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline,
+ p = in + xstart * 3, bit = 128;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ if (*scanptr & bit)
+ {
+ p[0] = redcmap[1];
+ p[1] = greencmap[1];
+ p[2] = bluecmap[1];
+ }
+ else
+ {
+ p[0] = redcmap[0];
+ p[1] = greencmap[0];
+ p[2] = bluecmap[0];
+ }
+
+ if (bit > 1)
+ bit >>= 1;
+ else
+ {
+ bit = 128;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline,
+ p = in + xstart * 3, bit = 0xc0;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ pixel = *scanptr & bit;
+ while (pixel > 3)
+ pixel >>= 2;
+
+ p[0] = redcmap[pixel];
+ p[1] = greencmap[pixel];
+ p[2] = bluecmap[pixel];
+
+ if (bit > 3)
+ bit >>= 2;
+ else
+ {
+ bit = 0xc0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline,
+ p = in + 3 * xstart, bit = 0xf0;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ if (bit == 0xf0)
+ {
+ pixel = (*scanptr & 0xf0) >> 4;
+ p[0] = redcmap[pixel];
+ p[1] = greencmap[pixel];
+ p[2] = bluecmap[pixel];
+ bit = 0x0f;
+ }
+ else
+ {
+ pixel = *scanptr++ & 0x0f;
+ p[0] = redcmap[pixel];
+ p[1] = greencmap[pixel];
+ p[2] = bluecmap[pixel];
+ bit = 0xf0;
+ }
+ }
+ }
+ else
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ for (xcount = img->xsize, p = in + 3 * xstart, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ p[0] = redcmap[*scanptr];
+ p[1] = greencmap[*scanptr];
+ p[2] = bluecmap[*scanptr++];
+ }
+ }
+
+ if (img->colorspace == CUPS_IMAGE_RGB)
+ {
+ if (lut)
+ cupsImageLut(in, img->xsize * 3, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, in);
+ }
+ else
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_WHITE :
+ cupsImageRGBToWhite(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageRGBToBlack(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageRGBToCMY(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageRGBToCMYK(in, out, img->xsize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->xsize * bpp, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, out);
+ }
+ }
+ }
+ else
+ {
+ /*
+ * Column major order...
+ */
+
+ for (x = xstart, xcount = img->xsize, row = 0;
+ xcount > 0;
+ xcount --, x += xdir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline,
+ p = in + 3 * ystart, bit = 128;
+ ycount > 0;
+ ycount --, p += ydir)
+ {
+ if (*scanptr & bit)
+ {
+ p[0] = redcmap[1];
+ p[1] = greencmap[1];
+ p[2] = bluecmap[1];
+ }
+ else
+ {
+ p[0] = redcmap[0];
+ p[1] = greencmap[0];
+ p[2] = bluecmap[0];
+ }
+
+ if (bit > 1)
+ bit >>= 1;
+ else
+ {
+ bit = 128;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline,
+ p = in + 3 * ystart, bit = 0xc0;
+ ycount > 0;
+ ycount --, p += ydir)
+ {
+ pixel = *scanptr & 0xc0;
+ while (pixel > 3)
+ pixel >>= 2;
+
+ p[0] = redcmap[pixel];
+ p[1] = greencmap[pixel];
+ p[2] = bluecmap[pixel];
+
+ if (bit > 3)
+ bit >>= 2;
+ else
+ {
+ bit = 0xc0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline,
+ p = in + 3 * ystart, bit = 0xf0;
+ ycount > 0;
+ ycount --, p += ydir)
+ {
+ if (bit == 0xf0)
+ {
+ pixel = (*scanptr & 0xf0) >> 4;
+ p[0] = redcmap[pixel];
+ p[1] = greencmap[pixel];
+ p[2] = bluecmap[pixel];
+ bit = 0x0f;
+ }
+ else
+ {
+ pixel = *scanptr++ & 0x0f;
+ p[0] = redcmap[pixel];
+ p[1] = greencmap[pixel];
+ p[2] = bluecmap[pixel];
+ bit = 0xf0;
+ }
+ }
+ }
+ else
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ for (ycount = img->ysize, p = in + 3 * ystart, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += ydir)
+ {
+ p[0] = redcmap[*scanptr];
+ p[1] = greencmap[*scanptr];
+ p[2] = bluecmap[*scanptr++];
+ }
+ }
+
+ if (img->colorspace == CUPS_IMAGE_RGB)
+ {
+ if (lut)
+ cupsImageLut(in, img->ysize * 3, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, in);
+ }
+ else
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_WHITE :
+ cupsImageRGBToWhite(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageRGBToBlack(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageRGBToCMY(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageRGBToCMYK(in, out, img->ysize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->ysize * bpp, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, out);
+ }
+ }
+ }
+ break;
+
+ case PHOTOMETRIC_RGB :
+ if (orientation < ORIENTATION_LEFTTOP)
+ {
+ /*
+ * Row major order...
+ */
+
+ for (y = ystart, ycount = img->ysize, row = 0;
+ ycount > 0;
+ ycount --, y += ydir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart * 3, bit = 0xf0;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ if (*scanptr & bit & 0x88)
+ p[0] = 255;
+ else
+ p[0] = 0;
+
+ if (*scanptr & bit & 0x44)
+ p[1] = 255;
+ else
+ p[1] = 0;
+
+ if (*scanptr & bit & 0x22)
+ p[2] = 255;
+ else
+ p[2] = 0;
+
+ if (bit == 0xf0)
+ bit = 0x0f;
+ else
+ {
+ bit = 0xf0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart * 3;
+ xcount > 0;
+ xcount --, p += pstep, scanptr ++)
+ {
+ pixel = *scanptr >> 2;
+ p[0] = 255 * (pixel & 3) / 3;
+ pixel >>= 2;
+ p[1] = 255 * (pixel & 3) / 3;
+ pixel >>= 2;
+ p[2] = 255 * (pixel & 3) / 3;
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart * 3;
+ xcount > 0;
+ xcount -= 2, p += 2 * pstep, scanptr += 3)
+ {
+ pixel = scanptr[0];
+ p[1] = 255 * (pixel & 15) / 15;
+ pixel >>= 4;
+ p[0] = 255 * (pixel & 15) / 15;
+ pixel = scanptr[1];
+ p[2] = 255 * ((pixel >> 4) & 15) / 15;
+
+ if (xcount > 1)
+ {
+ p[pstep + 0] = 255 * (pixel & 15) / 15;
+ pixel = scanptr[2];
+ p[pstep + 2] = 255 * (pixel & 15) / 15;
+ pixel >>= 4;
+ p[pstep + 1] = 255 * (pixel & 15) / 15;
+ }
+ }
+ }
+ else if (xdir < 0 || alpha)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ if (alpha)
+ {
+ for (xcount = img->xsize, p = in + xstart * 3, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep, scanptr += 4)
+ {
+ p[0] = (scanptr[0] * scanptr[3] + 255 * (255 - scanptr[3])) / 255;
+ p[1] = (scanptr[1] * scanptr[3] + 255 * (255 - scanptr[3])) / 255;
+ p[2] = (scanptr[2] * scanptr[3] + 255 * (255 - scanptr[3])) / 255;
+ }
+ }
+ else
+ {
+ for (xcount = img->xsize, p = in + xstart * 3, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep, scanptr += 3)
+ {
+ p[0] = scanptr[0];
+ p[1] = scanptr[1];
+ p[2] = scanptr[2];
+ }
+ }
+ }
+ else
+ TIFFReadScanline(tif, in, row, 0);
+
+ if ((saturation != 100 || hue != 0) && bpp > 1)
+ cupsImageRGBAdjust(in, img->xsize, saturation, hue);
+
+ if (img->colorspace == CUPS_IMAGE_RGB)
+ {
+ if (lut)
+ cupsImageLut(in, img->xsize * 3, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, in);
+ }
+ else
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_WHITE :
+ cupsImageRGBToWhite(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageRGBToBlack(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageRGBToCMY(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageRGBToCMYK(in, out, img->xsize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->xsize * bpp, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, out);
+ }
+ }
+ }
+ else
+ {
+ /*
+ * Column major order...
+ */
+
+ for (x = xstart, xcount = img->xsize, row = 0;
+ xcount > 0;
+ xcount --, x += xdir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + ystart * 3, bit = 0xf0;
+ ycount > 0;
+ ycount --, p += pstep)
+ {
+ if (*scanptr & bit & 0x88)
+ p[0] = 255;
+ else
+ p[0] = 0;
+
+ if (*scanptr & bit & 0x44)
+ p[1] = 255;
+ else
+ p[1] = 0;
+
+ if (*scanptr & bit & 0x22)
+ p[2] = 255;
+ else
+ p[2] = 0;
+
+ if (bit == 0xf0)
+ bit = 0x0f;
+ else
+ {
+ bit = 0xf0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + ystart * 3;
+ ycount > 0;
+ ycount --, p += pstep, scanptr ++)
+ {
+ pixel = *scanptr >> 2;
+ p[0] = 255 * (pixel & 3) / 3;
+ pixel >>= 2;
+ p[1] = 255 * (pixel & 3) / 3;
+ pixel >>= 2;
+ p[2] = 255 * (pixel & 3) / 3;
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + ystart * 3;
+ ycount > 0;
+ ycount -= 2, p += 2 * pstep, scanptr += 3)
+ {
+ pixel = scanptr[0];
+ p[1] = 255 * (pixel & 15) / 15;
+ pixel >>= 4;
+ p[0] = 255 * (pixel & 15) / 15;
+ pixel = scanptr[1];
+ p[2] = 255 * ((pixel >> 4) & 15) / 15;
+
+ if (ycount > 1)
+ {
+ p[pstep + 0] = 255 * (pixel & 15) / 15;
+ pixel = scanptr[2];
+ p[pstep + 2] = 255 * (pixel & 15) / 15;
+ pixel >>= 4;
+ p[pstep + 1] = 255 * (pixel & 15) / 15;
+ }
+ }
+ }
+ else if (ydir < 0 || alpha)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ if (alpha)
+ {
+ for (ycount = img->ysize, p = in + ystart * 3, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += pstep, scanptr += 4)
+ {
+ p[0] = (scanptr[0] * scanptr[3] + 255 * (255 - scanptr[3])) / 255;
+ p[1] = (scanptr[1] * scanptr[3] + 255 * (255 - scanptr[3])) / 255;
+ p[2] = (scanptr[2] * scanptr[3] + 255 * (255 - scanptr[3])) / 255;
+ }
+ }
+ else
+ {
+ for (ycount = img->ysize, p = in + ystart * 3, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += pstep, scanptr += 3)
+ {
+ p[0] = scanptr[0];
+ p[1] = scanptr[1];
+ p[2] = scanptr[2];
+ }
+ }
+ }
+ else
+ TIFFReadScanline(tif, in, row, 0);
+
+ if ((saturation != 100 || hue != 0) && bpp > 1)
+ cupsImageRGBAdjust(in, img->ysize, saturation, hue);
+
+ if (img->colorspace == CUPS_IMAGE_RGB)
+ {
+ if (lut)
+ cupsImageLut(in, img->ysize * 3, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, in);
+ }
+ else
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_WHITE :
+ cupsImageRGBToWhite(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageRGBToBlack(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageRGBToCMY(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageRGBToCMYK(in, out, img->ysize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->ysize * bpp, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, out);
+ }
+ }
+ }
+ break;
+
+ case PHOTOMETRIC_SEPARATED :
+ inkset = INKSET_CMYK;
+ numinks = 4;
+
+#ifdef TIFFTAG_NUMBEROFINKS
+ if (!TIFFGetField(tif, TIFFTAG_INKSET, &inkset) &&
+ !TIFFGetField(tif, TIFFTAG_NUMBEROFINKS, &numinks))
+#else
+ if (!TIFFGetField(tif, TIFFTAG_INKSET, &inkset))
+#endif /* TIFFTAG_NUMBEROFINKS */
+ {
+ fputs("WARNING: No inkset or number-of-inks tag in the file!\n", stderr);
+ }
+
+ if (inkset == INKSET_CMYK || numinks == 4)
+ {
+ if (orientation < ORIENTATION_LEFTTOP)
+ {
+ /*
+ * Row major order...
+ */
+
+ for (y = ystart, ycount = img->ysize, row = 0;
+ ycount > 0;
+ ycount --, y += ydir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart * 3, bit = 0xf0;
+ xcount > 0;
+ xcount --, p += pstep)
+ {
+ if (*scanptr & bit & 0x11)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ if (*scanptr & bit & 0x88)
+ p[0] = 0;
+ else
+ p[0] = 255;
+
+ if (*scanptr & bit & 0x44)
+ p[1] = 0;
+ else
+ p[1] = 255;
+
+ if (*scanptr & bit & 0x22)
+ p[2] = 0;
+ else
+ p[2] = 255;
+ }
+
+ if (bit == 0xf0)
+ bit = 0x0f;
+ else
+ {
+ bit = 0xf0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart * 3;
+ xcount > 0;
+ xcount --, p += pstep, scanptr ++)
+ {
+ pixel = *scanptr;
+ k = 255 * (pixel & 3) / 3;
+ if (k == 255)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ pixel >>= 2;
+ b = 255 - 255 * (pixel & 3) / 3 - k;
+ if (b < 0)
+ p[2] = 0;
+ else if (b < 256)
+ p[2] = b;
+ else
+ p[2] = 255;
+
+ pixel >>= 2;
+ g = 255 - 255 * (pixel & 3) / 3 - k;
+ if (g < 0)
+ p[1] = 0;
+ else if (g < 256)
+ p[1] = g;
+ else
+ p[1] = 255;
+
+ pixel >>= 2;
+ r = 255 - 255 * (pixel & 3) / 3 - k;
+ if (r < 0)
+ p[0] = 0;
+ else if (r < 256)
+ p[0] = r;
+ else
+ p[0] = 255;
+ }
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (xcount = img->xsize, scanptr = scanline, p = in + xstart * 3;
+ xcount > 0;
+ xcount --, p += pstep, scanptr += 2)
+ {
+ pixel = scanptr[1];
+ k = 255 * (pixel & 15) / 15;
+ if (k == 255)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ pixel >>= 4;
+ b = 255 - 255 * (pixel & 15) / 15 - k;
+ if (b < 0)
+ p[2] = 0;
+ else if (b < 256)
+ p[2] = b;
+ else
+ p[2] = 255;
+
+ pixel = scanptr[0];
+ g = 255 - 255 * (pixel & 15) / 15 - k;
+ if (g < 0)
+ p[1] = 0;
+ else if (g < 256)
+ p[1] = g;
+ else
+ p[1] = 255;
+
+ pixel >>= 4;
+ r = 255 - 255 * (pixel & 15) / 15 - k;
+ if (r < 0)
+ p[0] = 0;
+ else if (r < 256)
+ p[0] = r;
+ else
+ p[0] = 255;
+ }
+ }
+ }
+ else if (img->colorspace == CUPS_IMAGE_CMYK)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ _cupsImagePutRow(img, 0, y, img->xsize, scanline);
+ }
+ else
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ for (xcount = img->xsize, p = in + xstart * 3, scanptr = scanline;
+ xcount > 0;
+ xcount --, p += pstep, scanptr += 4)
+ {
+ k = scanptr[3];
+ if (k == 255)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ r = 255 - scanptr[0] - k;
+ if (r < 0)
+ p[0] = 0;
+ else if (r < 256)
+ p[0] = r;
+ else
+ p[0] = 255;
+
+ g = 255 - scanptr[1] - k;
+ if (g < 0)
+ p[1] = 0;
+ else if (g < 256)
+ p[1] = g;
+ else
+ p[1] = 255;
+
+ b = 255 - scanptr[2] - k;
+ if (b < 0)
+ p[2] = 0;
+ else if (b < 256)
+ p[2] = b;
+ else
+ p[2] = 255;
+ }
+ }
+ }
+
+ if ((saturation != 100 || hue != 0) && bpp > 1)
+ cupsImageRGBAdjust(in, img->xsize, saturation, hue);
+
+ if (img->colorspace == CUPS_IMAGE_RGB)
+ {
+ if (lut)
+ cupsImageLut(in, img->xsize * 3, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, in);
+ }
+ else if (img->colorspace == CUPS_IMAGE_WHITE)
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_WHITE :
+ cupsImageRGBToWhite(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageRGBToBlack(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageRGBToCMY(in, out, img->xsize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageRGBToCMYK(in, out, img->xsize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->xsize * 3, lut);
+
+ _cupsImagePutRow(img, 0, y, img->xsize, out);
+ }
+ }
+ }
+ else
+ {
+ /*
+ * Column major order...
+ */
+
+ for (x = xstart, xcount = img->xsize, row = 0;
+ xcount > 0;
+ xcount --, x += xdir, row ++)
+ {
+ if (bits == 1)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + xstart * 3, bit = 0xf0;
+ ycount > 0;
+ ycount --, p += pstep)
+ {
+ if (*scanptr & bit & 0x11)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ if (*scanptr & bit & 0x88)
+ p[0] = 0;
+ else
+ p[0] = 255;
+
+ if (*scanptr & bit & 0x44)
+ p[1] = 0;
+ else
+ p[1] = 255;
+
+ if (*scanptr & bit & 0x22)
+ p[2] = 0;
+ else
+ p[2] = 255;
+ }
+
+ if (bit == 0xf0)
+ bit = 0x0f;
+ else
+ {
+ bit = 0xf0;
+ scanptr ++;
+ }
+ }
+ }
+ else if (bits == 2)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + xstart * 3;
+ ycount > 0;
+ ycount --, p += pstep, scanptr ++)
+ {
+ pixel = *scanptr;
+ k = 255 * (pixel & 3) / 3;
+ if (k == 255)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ pixel >>= 2;
+ b = 255 - 255 * (pixel & 3) / 3 - k;
+ if (b < 0)
+ p[2] = 0;
+ else if (b < 256)
+ p[2] = b;
+ else
+ p[2] = 255;
+
+ pixel >>= 2;
+ g = 255 - 255 * (pixel & 3) / 3 - k;
+ if (g < 0)
+ p[1] = 0;
+ else if (g < 256)
+ p[1] = g;
+ else
+ p[1] = 255;
+
+ pixel >>= 2;
+ r = 255 - 255 * (pixel & 3) / 3 - k;
+ if (r < 0)
+ p[0] = 0;
+ else if (r < 256)
+ p[0] = r;
+ else
+ p[0] = 255;
+ }
+ }
+ }
+ else if (bits == 4)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ for (ycount = img->ysize, scanptr = scanline, p = in + xstart * 3;
+ ycount > 0;
+ ycount --, p += pstep, scanptr += 2)
+ {
+ pixel = scanptr[1];
+ k = 255 * (pixel & 15) / 15;
+ if (k == 255)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ pixel >>= 4;
+ b = 255 - 255 * (pixel & 15) / 15 - k;
+ if (b < 0)
+ p[2] = 0;
+ else if (b < 256)
+ p[2] = b;
+ else
+ p[2] = 255;
+
+ pixel = scanptr[0];
+ g = 255 - 255 * (pixel & 15) / 15 - k;
+ if (g < 0)
+ p[1] = 0;
+ else if (g < 256)
+ p[1] = g;
+ else
+ p[1] = 255;
+
+ pixel >>= 4;
+ r = 255 - 255 * (pixel & 15) / 15 - k;
+ if (r < 0)
+ p[0] = 0;
+ else if (r < 256)
+ p[0] = r;
+ else
+ p[0] = 255;
+ }
+ }
+ }
+ else if (img->colorspace == CUPS_IMAGE_CMYK)
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+ _cupsImagePutCol(img, x, 0, img->ysize, scanline);
+ }
+ else
+ {
+ TIFFReadScanline(tif, scanline, row, 0);
+
+ for (ycount = img->ysize, p = in + xstart * 3, scanptr = scanline;
+ ycount > 0;
+ ycount --, p += pstep, scanptr += 4)
+ {
+ k = scanptr[3];
+ if (k == 255)
+ {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ }
+ else
+ {
+ r = 255 - scanptr[0] - k;
+ if (r < 0)
+ p[0] = 0;
+ else if (r < 256)
+ p[0] = r;
+ else
+ p[0] = 255;
+
+ g = 255 - scanptr[1] - k;
+ if (g < 0)
+ p[1] = 0;
+ else if (g < 256)
+ p[1] = g;
+ else
+ p[1] = 255;
+
+ b = 255 - scanptr[2] - k;
+ if (b < 0)
+ p[2] = 0;
+ else if (b < 256)
+ p[2] = b;
+ else
+ p[2] = 255;
+ }
+ }
+ }
+
+ if ((saturation != 100 || hue != 0) && bpp > 1)
+ cupsImageRGBAdjust(in, img->ysize, saturation, hue);
+
+ if (img->colorspace == CUPS_IMAGE_RGB)
+ {
+ if (lut)
+ cupsImageLut(in, img->ysize * 3, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, in);
+ }
+ else if (img->colorspace == CUPS_IMAGE_WHITE)
+ {
+ switch (img->colorspace)
+ {
+ default :
+ break;
+
+ case CUPS_IMAGE_WHITE :
+ cupsImageRGBToWhite(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_BLACK :
+ cupsImageRGBToBlack(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMY :
+ cupsImageRGBToCMY(in, out, img->ysize);
+ break;
+ case CUPS_IMAGE_CMYK :
+ cupsImageRGBToCMYK(in, out, img->ysize);
+ break;
+ }
+
+ if (lut)
+ cupsImageLut(out, img->ysize * bpp, lut);
+
+ _cupsImagePutCol(img, x, 0, img->ysize, out);
+ }
+ }
+ }
+
+ break;
+ }
+
+ default :
+ _TIFFfree(scanline);
+ free(in);
+ free(out);
+
+ TIFFClose(tif);
+ fputs("ERROR: Unknown TIFF photometric value!\n", stderr);
+ return (-1);
+ }
+
+ /*
+ * Free temporary buffers, close the TIFF file, and return.
+ */
+
+ _TIFFfree(scanline);
+ free(in);
+ free(out);
+
+ TIFFClose(tif);
+ return (0);
+}
+#endif /* HAVE_LIBTIFF */
+
+
+/*
+ * End of "$Id: image-tiff.c 4741 2005-10-02 04:25:52Z mike $".
+ */
projects / thirdparty / cups.git / blobdiff