1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282
|
/* Copyright (C) 2001-2006 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 that
license. Refer to licensing information at http://www.artifex.com/
or contact Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134,
San Rafael, CA 94903, U.S.A., +1(415)492-9861, for further information.
*/
/* $Id: gdevdm24.c 8250 2007-09-25 13:31:24Z giles $*/
/* High-res 24Dot-matrix printer driver */
/* Supported printers
* NEC P6 and similar, implemented by Andreas Schwab (schwab@ls5.informatik.uni-dortmund.de)
* Epson LQ850, implemented by Christian Felsch (felsch@tu-harburg.d400.de)
*/
#include "gdevprn.h"
/* Driver for NEC P6 */
static dev_proc_print_page (necp6_print_page);
const gx_device_printer far_data gs_necp6_device =
prn_device (prn_std_procs, "necp6",
DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
360, 360,
0, 0, 0.5, 0, /* margins */
1, necp6_print_page);
/* Driver for Epson LQ850 */
/* I've tested this driver on a BJ300 with LQ850 emulation and there it produce correct 360x360dpi output. */
static dev_proc_print_page (lq850_print_page);
const gx_device_printer gs_lq850_device =
prn_device (prn_std_procs, "lq850",
DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
360, 360,
0, 0, 0.5, 0, /* margins */
1, lq850_print_page);
/* ------ Internal routines ------ */
/* Forward references */
static void dot24_output_run (byte *, int, int, FILE *);
static void dot24_improve_bitmap (byte *, int);
/* Send the page to the printer. */
static int
dot24_print_page (gx_device_printer *pdev, FILE *prn_stream, char *init_string, int init_len)
{
int xres = (int)pdev->x_pixels_per_inch;
int yres = (int)pdev->y_pixels_per_inch;
int x_high = (xres == 360);
int y_high = (yres == 360);
int bits_per_column = (y_high ? 48 : 24);
uint line_size = gdev_prn_raster (pdev);
uint in_size = line_size * bits_per_column;
byte *in = (byte *) gs_malloc (pdev->memory, in_size, 1, "dot24_print_page (in)");
uint out_size = ((pdev->width + 7) & -8) * 3;
byte *out = (byte *) gs_malloc (pdev->memory, out_size, 1, "dot24_print_page (out)");
int y_passes = (y_high ? 2 : 1);
int dots_per_space = xres / 10; /* pica space = 1/10" */
int bytes_per_space = dots_per_space * 3;
int skip = 0, lnum = 0, ypass;
/* Check allocations */
if (in == 0 || out == 0)
{
if (out)
gs_free (pdev->memory, (char *) out, out_size, 1, "dot24_print_page (out)");
if (in)
gs_free (pdev->memory, (char *) in, in_size, 1, "dot24_print_page (in)");
return_error (gs_error_VMerror);
}
/* Initialize the printer and reset the margins. */
fwrite (init_string, init_len - 1, sizeof (char), prn_stream);
fputc ((int) (pdev->width / pdev->x_pixels_per_inch * 10) + 2,
prn_stream);
/* Print lines of graphics */
while (lnum < pdev->height)
{
byte *inp;
byte *in_end;
byte *out_end;
byte *out_blk;
register byte *outp;
int lcnt;
/* Copy 1 scan line and test for all zero. */
gdev_prn_copy_scan_lines (pdev, lnum, in, line_size);
if (in[0] == 0
&& !memcmp ((char *) in, (char *) in + 1, line_size - 1))
{
lnum++;
skip += 2 - y_high;
continue;
}
/* Vertical tab to the appropriate position. */
while ((skip >> 1) > 255)
{
fputs ("\033J\377", prn_stream);
skip -= 255 * 2;
}
if (skip)
{
if (skip >> 1)
fprintf (prn_stream, "\033J%c", skip >> 1);
if (skip & 1)
fputc ('\n', prn_stream);
}
/* Copy the rest of the scan lines. */
if (y_high)
{
inp = in + line_size;
for (lcnt = 1; lcnt < 24; lcnt++, inp += line_size)
if (!gdev_prn_copy_scan_lines (pdev, lnum + lcnt * 2, inp,
line_size))
{
memset (inp, 0, (24 - lcnt) * line_size);
break;
}
inp = in + line_size * 24;
for (lcnt = 0; lcnt < 24; lcnt++, inp += line_size)
if (!gdev_prn_copy_scan_lines (pdev, lnum + lcnt * 2 + 1, inp,
line_size))
{
memset (inp, 0, (24 - lcnt) * line_size);
break;
}
}
else
{
lcnt = 1 + gdev_prn_copy_scan_lines (pdev, lnum + 1, in + line_size,
in_size - line_size);
if (lcnt < 24)
/* Pad with lines of zeros. */
memset (in + lcnt * line_size, 0, in_size - lcnt * line_size);
}
for (ypass = 0; ypass < y_passes; ypass++)
{
out_end = out;
inp = in;
if (ypass)
inp += line_size * 24;
in_end = inp + line_size;
for (; inp < in_end; inp++, out_end += 24)
{
memflip8x8 (inp, line_size, out_end, 3);
memflip8x8 (inp + line_size * 8, line_size, out_end + 1, 3);
memflip8x8 (inp + line_size * 16, line_size, out_end + 2, 3);
}
/* Remove trailing 0s. */
while (out_end - 3 >= out && out_end[-1] == 0
&& out_end[-2] == 0 && out_end[-3] == 0)
out_end -= 3;
for (out_blk = outp = out; outp < out_end;)
{
/* Skip a run of leading 0s. */
/* At least 10 are needed to make tabbing worth it. */
if (outp[0] == 0 && outp + 12 <= out_end
&& outp[1] == 0 && outp[2] == 0
&& outp[3] == 0 && outp[4] == 0 && outp[5] == 0
&& outp[6] == 0 && outp[7] == 0 && outp[8] == 0
&& outp[9] == 0 && outp[10] == 0 && outp[11] == 0)
{
byte *zp = outp;
int tpos;
byte *newp;
outp += 12;
while (outp + 3 <= out_end
&& outp[0] == 0 && outp[1] == 0 && outp[2] == 0)
outp += 3;
tpos = (outp - out) / bytes_per_space;
newp = out + tpos * bytes_per_space;
if (newp > zp + 10)
{
/* Output preceding bit data. */
/* only false at beginning of line */
if (zp > out_blk)
{
if (x_high)
dot24_improve_bitmap (out_blk, (int) (zp - out_blk));
dot24_output_run (out_blk, (int) (zp - out_blk),
x_high, prn_stream);
}
/* Tab over to the appropriate position. */
fprintf (prn_stream, "\033D%c%c\t", tpos, 0);
out_blk = outp = newp;
}
}
else
outp += 3;
}
if (outp > out_blk)
{
if (x_high)
dot24_improve_bitmap (out_blk, (int) (outp - out_blk));
dot24_output_run (out_blk, (int) (outp - out_blk), x_high,
prn_stream);
}
fputc ('\r', prn_stream);
if (ypass < y_passes - 1)
fputc ('\n', prn_stream);
}
skip = 48 - y_high;
lnum += bits_per_column;
}
/* Eject the page and reinitialize the printer */
fputs ("\f\033@", prn_stream);
fflush (prn_stream);
gs_free (pdev->memory, (char *) out, out_size, 1, "dot24_print_page (out)");
gs_free (pdev->memory, (char *) in, in_size, 1, "dot24_print_page (in)");
return 0;
}
/* Output a single graphics command. */
static void
dot24_output_run (byte *data, int count, int x_high, FILE *prn_stream)
{
int xcount = count / 3;
fputc (033, prn_stream);
fputc ('*', prn_stream);
fputc ((x_high ? 40 : 39), prn_stream);
fputc (xcount & 0xff, prn_stream);
fputc (xcount >> 8, prn_stream);
fwrite (data, 1, count, prn_stream);
}
/* If xdpi == 360, the P6 / LQ850 cannot print adjacent pixels. Clear the
second last pixel of every run of set pixels, so that the last pixel
is always printed. */
static void
dot24_improve_bitmap (byte *data, int count)
{
int i;
register byte *p = data + 6;
for (i = 6; i < count; i += 3, p += 3)
{
p[-6] &= ~(~p[0] & p[-3]);
p[-5] &= ~(~p[1] & p[-2]);
p[-4] &= ~(~p[2] & p[-1]);
}
p[-6] &= ~p[-3];
p[-5] &= ~p[-2];
p[-4] &= ~p[-1];
}
static int
necp6_print_page(gx_device_printer *pdev, FILE *prn_stream)
{
char necp6_init_string [] = "\033@\033P\033l\000\r\034\063\001\033Q";
return dot24_print_page(pdev, prn_stream, necp6_init_string, sizeof(necp6_init_string));
}
static int
lq850_print_page(gx_device_printer *pdev, FILE *prn_stream)
{
char lq850_init_string [] = "\033@\033P\033l\000\r\033\053\001\033Q";
return dot24_print_page(pdev, prn_stream, lq850_init_string, sizeof(lq850_init_string));
}
|