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gimp/plug-ins/print/print.h

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/*
* "$Id$"
*
* Print plug-in header file for the GIMP.
*
* Copyright 1997-2000 Michael Sweet (mike@easysw.com) and
* Robert Krawitz (rlk@alum.mit.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Revision History:
*
* See ChangeLog
*/
/*
*
* This file must not include any gimp, glib, gtk, etc. headers.
*
* Eventually I intend to port this to GhostScript and/or CUPS. The only
* file that should have GIMP-specific code is print.c. The rest of this
* program should be completely generic.
*
* rlk 20000112
*/
/*
* Include necessary header files...
*/
#ifndef HAVE_UNISTD_H
#define HAVE_UNISTD_H
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/*
* Constants...
*/
#define OUTPUT_GRAY 0 /* Grayscale output */
#define OUTPUT_COLOR 1 /* Color output */
#define ORIENT_AUTO -1 /* Best orientation */
#define ORIENT_PORTRAIT 0 /* Portrait orientation */
#define ORIENT_LANDSCAPE 1 /* Landscape orientation */
#ifndef MIN
# define MIN(a,b) ((a) < (b) ? (a) : (b))
# define MAX(a,b) ((a) > (b) ? (a) : (b))
#endif /* !MIN */
/*
* Printer driver control structure. See "print.c" for the actual list...
*/
typedef struct
{
unsigned short composite[256];
unsigned short red[256];
unsigned short green[256];
unsigned short blue[256];
} lut_t;
typedef struct /* Plug-in variables */
{
char output_to[255], /* Name of file or command to print to */
driver[64], /* Name of printer "driver" */
ppd_file[255]; /* PPD file */
int output_type; /* Color or grayscale output */
char resolution[64], /* Resolution */
media_size[64], /* Media size */
media_type[64], /* Media type */
media_source[64]; /* Media source */
int brightness; /* Output brightness */
float scaling; /* Scaling, percent of printable area */
int orientation, /* Orientation - 0 = port., 1 = land.,
-1 = auto */
left, /* Offset from lower-lefthand corner, points */
top; /* ... */
float gamma; /* Gamma */
int contrast, /* Output Contrast */
red, /* Output red level */
green, /* Output green level */
blue; /* Output blue level */
int linear; /* Linear density (mostly for testing!) */
float saturation; /* Output saturation */
float density; /* Maximum output density */
} vars_t;
typedef struct /**** Printer List ****/
{
int active; /* Do we know about this printer? */
char name[17]; /* Name of printer */
vars_t v;
} plist_t;
/*
* Abstract data type for interfacing with the image creation program
* (in this case, the Gimp).
*/
typedef void *Image;
extern void Image_init(Image image);
extern int Image_bpp(Image image);
extern int Image_width(Image image);
extern int Image_height(Image image);
extern const char *Image_get_pluginname(Image image);
extern void Image_get_col(Image image, unsigned char *data, int column);
extern void Image_get_row(Image image, unsigned char *data, int row);
extern void Image_progress_init(Image image);
extern void Image_note_progress(Image image, double current, double total);
typedef struct
{
char *long_name, /* Long name for UI */
*driver; /* Short name for printrc file */
int color, /* TRUE if supports color */
model; /* Model number */
float gamma, /* Gamma correction */
density; /* Ink "density" or black level */
char **(*parameters)(int model, char *ppd_file, char *name, int *count);
/* Parameter names */
void (*media_size)(int model, char *ppd_file, char *media_size,
int *width, int *length);
void (*imageable_area)(int model, char *ppd_file, char *media_size,
int *left, int *right, int *bottom, int *top);
/* Print function */
void (*print)(int model, int copies, FILE *prn, Image image,
unsigned char *cmap, lut_t *lut, vars_t *v);
} printer_t;
typedef void (*convert_t)(unsigned char *in, unsigned short *out, int width,
int bpp, lut_t *lut, unsigned char *cmap,
vars_t *vars);
/*
* Prototypes...
*/
extern void dither_black(unsigned short *, int, int, int, unsigned char *);
extern void dither_cmyk(unsigned short *, int, int, int, unsigned char *,
unsigned char *, unsigned char *,
unsigned char *, unsigned char *,
unsigned char *, unsigned char *, int);
extern void dither_black4(unsigned short *, int, int, int,
unsigned char *);
extern void dither_cmyk4(unsigned short *, int, int, int, unsigned char *,
unsigned char *, unsigned char *,
unsigned char *);
extern void gray_to_gray(unsigned char *, unsigned short *, int, int,
lut_t *, unsigned char *, vars_t *);
extern void indexed_to_gray(unsigned char *, unsigned short *, int, int,
lut_t *, unsigned char *, vars_t *);
extern void indexed_to_rgb(unsigned char *, unsigned short *, int, int,
lut_t *, unsigned char *, vars_t *);
extern void rgb_to_gray(unsigned char *, unsigned short *, int, int,
lut_t *, unsigned char *, vars_t *);
extern void rgb_to_rgb(unsigned char *, unsigned short *, int, int,
lut_t *, unsigned char *, vars_t *);
extern void compute_lut(lut_t *lut, float print_gamma,
float app_gamma, vars_t *v);
extern void default_media_size(int model, char *ppd_file, char *media_size,
int *width, int *length);
extern char **escp2_parameters(int model, char *ppd_file, char *name,
int *count);
extern void escp2_imageable_area(int model, char *ppd_file,
char *media_size, int *left, int *right,
int *bottom, int *top);
extern void escp2_print(int model, int copies, FILE *prn,
Image image, unsigned char *cmap,
lut_t *lut, vars_t *v);
extern char **pcl_parameters(int model, char *ppd_file, char *name,
int *count);
extern void pcl_imageable_area(int model, char *ppd_file, char *media_size,
int *left, int *right, int *bottom,
int *top);
extern void pcl_print(int model, int copies, FILE *prn,
Image image, unsigned char *cmap,
lut_t *lut, vars_t *v);
extern char **ps_parameters(int model, char *ppd_file, char *name,
int *count);
extern void ps_media_size(int model, char *ppd_file, char *media_size,
int *width, int *length);
extern void ps_imageable_area(int model, char *ppd_file, char *media_size,
int *left, int *right, int *bottom,
int *top);
extern void ps_print(int model, int copies, FILE *prn,
Image image, unsigned char *cmap,
lut_t *lut, vars_t *v);
#ifdef LEFTOVER_8_BIT
extern void dither_cmyk4(unsigned char *, int, int, int, unsigned char *,
unsigned char *, unsigned char *,
unsigned char *);
extern void dither_black4(unsigned char *, int, int, int, unsigned char *);
extern void gray_to_gray(unsigned char *, unsigned char *, int, int,
lut_t *, unsigned char *, float);
extern void indexed_to_gray(unsigned char *, unsigned char *, int, int,
lut_t *, unsigned char *, float);
#endif
int known_printers(void);
const printer_t *get_printers(void);
const printer_t *get_printer_by_index(int);
const printer_t *get_printer_by_long_name(const char *);
const printer_t *get_printer_by_driver(const char *);
int get_printer_index_by_driver(const char *);
/*
* End of "$Id$".
*/
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