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-/*
- * "$Id: image-private.h 9042 2010-03-24 00:45:34Z mike $"
- *
- * Private image library definitions for CUPS.
- *
- * Copyright 2007-2010 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.
- */
-
-#ifndef _CUPS_IMAGE_PRIVATE_H_
-# define _CUPS_IMAGE_PRIVATE_H_
-
-/*
- * Include necessary headers...
- */
-
-# include "image.h"
-# include <cups/cups.h>
-# include <cups/debug-private.h>
-# include <cups/string-private.h>
-# include <stdlib.h>
-# include <string.h>
-# ifdef WIN32
-# include <io.h>
-# else
-# include <unistd.h>
-# endif /* WIN32 */
-# include <errno.h>
-# include <math.h>
-
-
-/*
- * Constants...
- */
-
-# define CUPS_IMAGE_MAX_WIDTH 0x07ffffff
- /* 2^27-1 to allow for 15-channel data */
-# define CUPS_IMAGE_MAX_HEIGHT 0x3fffffff
- /* 2^30-1 */
-
-# define CUPS_TILE_SIZE 256 /* 256x256 pixel tiles */
-# define CUPS_TILE_MINIMUM 10 /* Minimum number of tiles */
-
-
-/*
- * min/max/abs macros...
- */
-
-# ifndef max
-# define max(a,b) ((a) > (b) ? (a) : (b))
-# endif /* !max */
-# ifndef min
-# define min(a,b) ((a) < (b) ? (a) : (b))
-# endif /* !min */
-# ifndef abs
-# define abs(a) ((a) < 0 ? -(a) : (a))
-# endif /* !abs */
-
-
-/*
- * Types and structures...
- */
-
-typedef enum cups_iztype_e /**** Image zoom type ****/
-{
- CUPS_IZOOM_FAST, /* Use nearest-neighbor sampling */
- CUPS_IZOOM_NORMAL, /* Use bilinear interpolation */
- CUPS_IZOOM_BEST /* Use bicubic interpolation */
-} cups_iztype_t;
-
-struct cups_ic_s;
-
-typedef struct cups_itile_s /**** Image tile ****/
-{
- int dirty; /* True if tile is dirty */
- off_t pos; /* Position of tile on disk (-1 if not written) */
- struct cups_ic_s *ic; /* Pixel data */
-} cups_itile_t;
-
-typedef struct cups_ic_s /**** Image tile cache ****/
-{
- struct cups_ic_s *prev, /* Previous tile in cache */
- *next; /* Next tile in cache */
- cups_itile_t *tile; /* Tile this is attached to */
- cups_ib_t *pixels; /* Pixel data */
-} cups_ic_t;
-
-struct cups_image_s /**** Image file data ****/
-{
- cups_icspace_t colorspace; /* Colorspace of image */
- unsigned xsize, /* Width of image in pixels */
- ysize, /* Height of image in pixels */
- xppi, /* X resolution in pixels-per-inch */
- yppi, /* Y resolution in pixels-per-inch */
- num_ics, /* Number of cached tiles */
- max_ics; /* Maximum number of cached tiles */
- cups_itile_t **tiles; /* Tiles in image */
- cups_ic_t *first, /* First cached tile in image */
- *last; /* Last cached tile in image */
- int cachefile; /* Tile cache file */
- char cachename[256]; /* Tile cache filename */
-};
-
-struct cups_izoom_s /**** Image zoom data ****/
-{
- cups_image_t *img; /* Image to zoom */
- cups_iztype_t type; /* Type of zooming */
- unsigned xorig, /* X origin */
- yorig, /* Y origin */
- width, /* Width of input area */
- height, /* Height of input area */
- depth, /* Number of bytes per pixel */
- rotated, /* Non-zero if image needs to be rotated */
- xsize, /* Width of output image */
- ysize, /* Height of output image */
- xmax, /* Maximum input image X position */
- ymax, /* Maximum input image Y position */
- xmod, /* Threshold for Bresenheim rounding */
- ymod; /* ... */
- int xstep, /* Amount to step for each pixel along X */
- xincr,
- instep, /* Amount to step pixel pointer along X */
- inincr,
- ystep, /* Amount to step for each pixel along Y */
- yincr,
- row; /* Current row */
- cups_ib_t *rows[2], /* Horizontally scaled pixel data */
- *in; /* Unscaled input pixel data */
-};
-
-
-/*
- * Prototypes...
- */
-
-extern int _cupsImagePutCol(cups_image_t *img, int x, int y,
- int height, const cups_ib_t *pixels);
-extern int _cupsImagePutRow(cups_image_t *img, int x, int y,
- int width, const cups_ib_t *pixels);
-extern int _cupsImageReadBMP(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadFPX(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadGIF(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadJPEG(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadPIX(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadPNG(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadPNM(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadPhotoCD(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadSGI(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadSunRaster(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern int _cupsImageReadTIFF(cups_image_t *img, FILE *fp,
- cups_icspace_t primary,
- cups_icspace_t secondary,
- int saturation, int hue,
- const cups_ib_t *lut);
-extern void _cupsImageZoomDelete(cups_izoom_t *z);
-extern void _cupsImageZoomFill(cups_izoom_t *z, int iy);
-extern cups_izoom_t *_cupsImageZoomNew(cups_image_t *img, int xc0, int yc0,
- int xc1, int yc1, int xsize,
- int ysize, int rotated,
- cups_iztype_t type);
-
-extern int _cupsRasterExecPS(cups_page_header2_t *h,
- int *preferred_bits,
- const char *code);
-extern void _cupsRasterAddError(const char *f, ...);
-extern void _cupsRasterClearError(void);
-
-#endif /* !_CUPS_IMAGE_PRIVATE_H_ */
-
-/*
- * End of "$Id: image-private.h 9042 2010-03-24 00:45:34Z mike $".
- */