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/* Copyright (C) 2001-2023 Artifex Software, Inc.
All Rights Reserved.
This software is provided AS-IS with no warranty, either express or
implied.
This software is distributed under license and may not be copied,
modified or distributed except as expressly authorized under the terms
of the license contained in the file LICENSE in this distribution.
Refer to licensing information at http://www.artifex.com or contact
Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
CA 94129, USA, for further information.
*/
/* Epson Stylus-Color Printer-Driver */
#ifndef gdevstc_INCLUDED
# define gdevstc_INCLUDED
/***
*** This holds most of the declarations used by gdevstc.c/stcolor.
*** It should be included by the dithering-routines and should be
*** modified to include the separately compilable routines.
***/
/*** Ghostscript-Headers ***/
#include "gdevprn.h"
#include "gsparam.h"
#include "gsstate.h"
/*** Private Type for 32Bit-Pixels ***/
#if ARCH_LOG2_SIZEOF_INT < 2 /* int is too small */
typedef unsigned long stc_pixel;
#else /* int is sufficient */
typedef unsigned int stc_pixel;
#endif /* use int or long ? */
/*** Auxillary-Device Structure ***/
typedef struct stc_s {
long flags; /* some mode-flags */
int bits; /* the number of bits per component */
const struct stc_dither_s *dither; /* dithering-mode */
float *am; /* 3/9/16-E. vector/matrix */
float *extc[4]; /* Given arrays for stccode */
uint sizc[4]; /* Size of extcode-arrays */
gx_color_value *code[4]; /* cv -> internal */
float *extv[4]; /* Given arrays for stcvals */
uint sizv[4]; /* Size of extvals-arrays */
byte *vals[4]; /* internal -> dithering */
stc_pixel white_run[3]; /* the white-pattern */
stc_pixel white_end[3]; /* the white-Trailer */
gs_param_string_array
algorithms; /* Names of the available algorithms */
gs_param_string escp_init; /* Initialization-Sequence */
gs_param_string escp_release; /* Initialization-Sequence */
int escp_width; /* Number of Pixels printed */
int escp_height;/* Height send to the Printer */
int escp_top; /* Top-Margin, send to the printer */
int escp_bottom;/* Bottom-Margin, send to the printer */
int alg_item; /* Size of the items used by the algorithm */
int prt_buf; /* Number of buffers */
int prt_size; /* Size of the Printer-buffer */
int escp_size; /* Size of the ESC/P2-buffer */
int seed_size; /* Size of the seed-buffers */
int escp_u; /* print-resolution (3600 / ydpi )*/
int escp_c; /* selected color */
int escp_v; /* spacing within band */
int escp_h; /* 3600 / xdpi */
int escp_m; /* number of heads */
int escp_lf; /* linefeed in units */
int prt_y; /* print-coordinate */
int stc_y; /* Next line 2b printed */
int buf_y; /* Next line 2b loaded into the buffer */
int prt_scans; /* number of lines printed */
int *prt_width; /* Width of buffered lines */
byte **prt_data; /* Buffered printer-lines */
byte *escp_data; /* Buffer for ESC/P2-Data */
byte *seed_row[4];/* Buffer for delta-row compression (prt_size) */
int dir;
} stc_t;
/*** Main-Device Structure ***/
typedef struct stcolor_device_s {
gx_device_common;
gx_prn_device_common;
stc_t stc;
} stcolor_device;
#define STCDFLAG0 0x000001L /* Algorithm-Bit 0 */
#define STCDFLAG1 0x000002L /* Algorithm-Bit 1 */
#define STCDFLAG2 0x000004L /* Algorithm-Bit 2 */
#define STCDFLAG3 0x000008L /* Algorithm-Bit 3 */
#define STCDFLAG4 0x000010L /* Algorithm-Bit 4 */
#define STCCMYK10 0x000020L /* CMYK10-Coding active */
#define STCUNIDIR 0x000040L /* Unidirectional, if set */
#define STCUWEAVE 0x000080L /* Hardware Microweave */
#define STCNWEAVE 0x000100L /* Software Microweave disabled */
#define STCOK4GO 0x000200L /* stc_put_params was o.k. */
#define STCCOMP 0x000C00L /* RLE, Plain (>= 1.18) */
#define STCPLAIN 0x000400L /* No compression */
#define STCDELTA 0x000800L /* Delta-Row */
#define STCMODEL 0x00f000L /* STC, ST800 */
#define STCST800 0x001000L /* Monochrome-Variant */
#define STCSTCII 0x002000L /* Stylus Color II */
#define STCBAND 0x010000L /* Initialization defined */
#define STCHEIGHT 0x020000L /* Page-Length set */
#define STCWIDTH 0x040000L /* Page-Length set */
#define STCTOP 0x080000L /* Top-Margin set */
#define STCBOTTOM 0x100000L /* Bottom-Margin set */
#define STCINIT 0x200000L /* Initialization defined */
#define STCRELEASE 0x400000L /* Release defined */
#define STCPRINT 0x800000L /* Data printed */
/*** Datatype for the array of dithering-Algorithms ***/
#define stc_proc_dither(name) \
int name(stcolor_device *sdev,int npixel,byte *in,byte *buf,byte *out)
typedef struct stc_dither_s {
const char *name; /* Mode-Name for Dithering */
stc_proc_dither((*fun));
uint flags;
uint bufadd;
double minmax[2];
} stc_dither_t;
/*
* Color-Values for the output
*/
#define BLACK 1 /* in monochrome-Mode as well as in CMYK-Mode */
#define RED 4 /* in RGB-Mode */
#define GREEN 2
#define BLUE 1
#define CYAN 8 /* in CMYK-Mode */
#define MAGENTA 4
#define YELLOW 2
/*** A Macro to ease Type-depending things with the stc_p-union ***/
#define STC_TYPESWITCH(Dither,Action) \
switch((Dither)->flags & STC_TYPE) { \
case STC_BYTE: Action(byte); break; \
case STC_LONG: Action(long); break; \
default: Action(float); break;}
/***
*** MODIFY HERE to include your routine:
***
*** 1. Declare it here
*** 2. Add it to the definition of STC_MODI
*** 3. Add your file to the dependency-list in the Makefile & devices.mak
***/
/* Step 1. */
stc_proc_dither(stc_gsmono); /* resides in gdevstc1.c */
stc_proc_dither(stc_fs); /* resides in gdevstc2.c */
stc_proc_dither(stc_fscmyk); /* resides in gdevstc2.c too */
stc_proc_dither(stc_gsrgb); /* resides in gdevstc3.c */
stc_proc_dither(stc_fs2); /* resides in gdevstc4.c */
/* Values used to assemble flags */
#define DeviceGray 1 /* ProcessColorModel = DeviceGray */
#define DeviceRGB 3 /* ProcessColorModel = DeviceRGB */
#define DeviceCMYK 4 /* ProcessColorModel = DeviceCMYK */
#define STC_BYTE 8 /* Pass Bytes to the Dithering-Routine */
#define STC_LONG 16 /* Pass Longs to the Dithering-Routine */
#define STC_FLOAT 24 /* Pass Floats to the Dithering-Routine */
#define STC_TYPE 24 /* all the type-bits */
#define STC_CMYK10 32 /* Special 32-Bit CMYK-Coding */
#define STC_DIRECT 64 /* Suppress conversion of Scanlines */
#define STC_WHITE 128 /* Call Algorithm for white lines too (out == NULL) */
#define STC_SCAN 256 /* multiply by number of scanlines in buffer */
/* Step 2. */
/* Items: 1. Name to activate it
2. Name of the dithering-function
3. Several flags ored together, including # of buffered scanlines
4. Additional buffer-space (bytes/longs/floats)
5. Array of double with minimum and maximum-value
Keep the last line as it is.
*/
#define STC_MODI \
{"gsmono", stc_gsmono, DeviceGray|STC_BYTE,0,{0.0,1.0}},\
{"gsrgb" , stc_gsrgb , DeviceRGB |STC_BYTE,0,{0.0,1.0}},\
{"fsmono", stc_fs, \
DeviceGray|STC_LONG|1*STC_SCAN,3+3*1,{0.0,16777215.0}},\
{"fsrgb", stc_fs, \
DeviceRGB |STC_LONG|1*STC_SCAN,3+3*3,{0.0,16777215.0}},\
{"fsx4", stc_fs, \
DeviceCMYK|STC_LONG|1*STC_SCAN,3+3*4,{0.0,16777215.0}},\
{"fscmyk", stc_fscmyk, \
DeviceCMYK|STC_LONG|1*STC_SCAN,3+3*4,{0.0,16777215.0}},\
{"fs2", stc_fs2, \
DeviceRGB |STC_BYTE|STC_WHITE|1*STC_SCAN,0,{0.0,255.0}},
#ifndef X_DPI
#define X_DPI 360
#endif /* X_DPI */
#ifndef Y_DPI
#define Y_DPI 360
#endif /* Y_DPI */
#ifndef STC_L_MARGIN
# define STC_L_MARGIN 0.125 /* yields 45 Pixel@360DpI */
#endif /* STC_L_MARGIN */
#ifndef STC_B_MARGIN
# define STC_B_MARGIN 0.555 /* yields 198 Pixel@#60DpI (looses 1mm) */
#endif /* STC_B_MARGIN */
/*
* Right-Margin: Should match maximum print-width of 8".
*/
#ifndef STC_R_MARGIN
# ifdef A4
# define STC_R_MARGIN 0.175 /* Yields 63 Pixel@360DpI */
# else
# define STC_R_MARGIN 0.375 /* 135 Pixel */
# endif
#endif /* STC_R_MARGIN */
#ifndef STC_T_MARGIN
# define STC_T_MARGIN 0.125
#endif /* STC_T_MARGIN */
#endif
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