summaryrefslogtreecommitdiff
path: root/filter/image-photocd.c
diff options
context:
space:
mode:
Diffstat (limited to 'filter/image-photocd.c')
-rw-r--r--filter/image-photocd.c333
1 files changed, 0 insertions, 333 deletions
diff --git a/filter/image-photocd.c b/filter/image-photocd.c
deleted file mode 100644
index 625b0a2c..00000000
--- a/filter/image-photocd.c
+++ /dev/null
@@ -1,333 +0,0 @@
-/*
- * "$Id: image-photocd.c 9771 2011-05-12 05:21:56Z mike $"
- *
- * PhotoCD routines for CUPS.
- *
- * PhotoCD support is currently limited to the 768x512 base image, which
- * is only YCC encoded. Support for the higher resolution images will
- * require a lot of extra code...
- *
- * Copyright 2007-2011 by Apple Inc.
- * Copyright 1993-2006 by Easy Software Products.
- *
- * These coded instructions, statements, and computer programs are the
- * property of Apple Inc. 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
- * file is missing or damaged, see the license at "http://www.cups.org/".
- *
- * This file is subject to the Apple OS-Developed Software exception.
- *
- * Contents:
- *
- * _cupsImageReadPhotoCD() - Read a PhotoCD image file.
- */
-
-/*
- * Include necessary headers...
- */
-
-#include "image-private.h"
-
-
-/*
- * '_cupsImageReadPhotoCD()' - Read a PhotoCD image file.
- */
-
-int /* O - Read status */
-_cupsImageReadPhotoCD(
- 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 */
-{
- int x, y; /* Looping vars */
- int xdir, /* X direction */
- xstart; /* X starting point */
- int bpp; /* Bytes per pixel */
- int pass; /* Pass number */
- int rotation; /* 0 for 768x512, 1 for 512x768 */
- int temp, /* Adjusted luminance */
- temp2, /* Red, green, and blue values */
- cb, cr; /* Adjusted chroma values */
- cups_ib_t *in, /* Input (YCC) pixels */
- *iy, /* Luminance */
- *icb, /* Blue chroma */
- *icr, /* Red chroma */
- *rgb, /* RGB */
- *rgbptr, /* Pointer into RGB data */
- *out; /* Output pixels */
-
-
- (void)secondary;
-
- /*
- * Get the image orientation...
- */
-
- fseek(fp, 72, SEEK_SET);
- rotation = (getc(fp) & 63) != 8;
-
- /*
- * Seek to the start of the base image...
- */
-
- fseek(fp, 0x30000, SEEK_SET);
-
- /*
- * Allocate and initialize...
- */
-
- img->colorspace = (primary == CUPS_IMAGE_RGB_CMYK) ? CUPS_IMAGE_RGB : primary;
- img->xppi = 128;
- img->yppi = 128;
-
- if (rotation)
- {
- img->xsize = 512;
- img->ysize = 768;
- }
- else
- {
- img->xsize = 768;
- img->ysize = 512;
- }
-
- cupsImageSetMaxTiles(img, 0);
-
- bpp = cupsImageGetDepth(img);
-
- if ((in = malloc(768 * 3)) == NULL)
- {
- fputs("DEBUG: Unable to allocate memory!\n", stderr);
- fclose(fp);
- return (1);
- }
-
- if ((out = malloc(768 * bpp)) == NULL)
- {
- fputs("DEBUG: Unable to allocate memory!\n", stderr);
- fclose(fp);
- free(in);
- return (1);
- }
-
- if (bpp > 1)
- {
- if ((rgb = malloc(768 * 3)) == NULL)
- {
- fputs("DEBUG: Unable to allocate memory!\n", stderr);
- fclose(fp);
- free(in);
- free(out);
- return (1);
- }
- }
- else
- rgb = NULL;
-
- if (rotation)
- {
- xstart = 767 * bpp;
- xdir = -2 * bpp;
- }
- else
- {
- xstart = 0;
- xdir = 0;
- }
-
- /*
- * Read the image file...
- */
-
- for (y = 0; y < 512; y += 2)
- {
- /*
- * Grab the next two scanlines:
- *
- * YYYYYYYYYYYYYYY...
- * YYYYYYYYYYYYYYY...
- * CbCbCb...CrCrCr...
- */
-
- if (fread(in, 1, 768 * 3, fp) < (768 * 3))
- {
- /*
- * Couldn't read a row of data - return an error!
- */
-
- free(in);
- free(out);
-
- if (bpp > 1)
- free(rgb);
-
- return (-1);
- }
-
- /*
- * Process the two scanlines...
- */
-
- for (pass = 0, iy = in; pass < 2; pass ++)
- {
- if (bpp == 1)
- {
- /*
- * Just extract the luminance channel from the line and put it
- * in the image...
- */
-
- if (primary == CUPS_IMAGE_BLACK)
- {
- if (rotation)
- {
- for (rgbptr = out + xstart, x = 0; x < 768; x ++)
- *rgbptr-- = 255 - *iy++;
-
- if (lut)
- cupsImageLut(out, 768, lut);
-
- _cupsImagePutCol(img, 511 - y - pass, 0, 768, out);
- }
- else
- {
- cupsImageWhiteToBlack(iy, out, 768);
-
- if (lut)
- cupsImageLut(out, 768, lut);
-
- _cupsImagePutRow(img, 0, y + pass, 768, out);
- iy += 768;
- }
- }
- else if (rotation)
- {
- for (rgbptr = out + xstart, x = 0; x < 768; x ++)
- *rgbptr-- = 255 - *iy++;
-
- if (lut)
- cupsImageLut(out, 768, lut);
-
- _cupsImagePutCol(img, 511 - y - pass, 0, 768, out);
- }
- else
- {
- if (lut)
- cupsImageLut(iy, 768, lut);
-
- _cupsImagePutRow(img, 0, y + pass, 768, iy);
- iy += 768;
- }
- }
- else
- {
- /*
- * Convert YCbCr to RGB... While every pixel gets a luminance
- * value, adjacent pixels share chroma information.
- */
-
- cb = cr = 0.0f;
-
- for (x = 0, rgbptr = rgb + xstart, icb = in + 1536, icr = in + 1920;
- x < 768;
- x ++, iy ++, rgbptr += xdir)
- {
- if (!(x & 1))
- {
- cb = (float)(*icb - 156);
- cr = (float)(*icr - 137);
- }
-
- temp = 92241 * (*iy);
-
- temp2 = (temp + 86706 * cr) / 65536;
- if (temp2 < 0)
- *rgbptr++ = 0;
- else if (temp2 > 255)
- *rgbptr++ = 255;
- else
- *rgbptr++ = temp2;
-
- temp2 = (temp - 25914 * cb - 44166 * cr) / 65536;
- if (temp2 < 0)
- *rgbptr++ = 0;
- else if (temp2 > 255)
- *rgbptr++ = 255;
- else
- *rgbptr++ = temp2;
-
- temp2 = (temp + 133434 * cb) / 65536;
- if (temp2 < 0)
- *rgbptr++ = 0;
- else if (temp2 > 255)
- *rgbptr++ = 255;
- else
- *rgbptr++ = temp2;
-
- if (x & 1)
- {
- icb ++;
- icr ++;
- }
- }
-
- /*
- * Adjust the hue and saturation if needed...
- */
-
- if (saturation != 100 || hue != 0)
- cupsImageRGBAdjust(rgb, 768, saturation, hue);
-
- /*
- * Then convert the RGB data to the appropriate colorspace and
- * put it in the image...
- */
-
- switch (img->colorspace)
- {
- default :
- break;
-
- case CUPS_IMAGE_RGB :
- cupsImageRGBToRGB(rgb, out, 768);
- break;
- case CUPS_IMAGE_CMY :
- cupsImageRGBToCMY(rgb, out, 768);
- break;
- case CUPS_IMAGE_CMYK :
- cupsImageRGBToCMYK(rgb, out, 768);
- break;
- }
-
- if (lut)
- cupsImageLut(out, 768 * bpp, lut);
-
- if (rotation)
- _cupsImagePutCol(img, 511 - y - pass, 0, 768, out);
- else
- _cupsImagePutRow(img, 0, y + pass, 768, out);
- }
- }
- }
-
- /*
- * Free memory and return...
- */
-
- free(in);
- free(out);
- if (bpp > 1)
- free(rgb);
-
- return (0);
-}
-
-
-/*
- * End of "$Id: image-photocd.c 9771 2011-05-12 05:21:56Z mike $".
- */
generated by cgit v1.2.3 (git 2.39.1) at 2025-09-02 05:45:22 +0000