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
|
/* 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.
*/
/* H-P PaintJet, PaintJet XL, and DEC LJ250 drivers. */
/* Thanks to Rob Reiss (rob@moray.berkeley.edu) for the PaintJet XL */
/* modifications. */
#include "gdevprn.h"
#include "gdevpcl.h"
/* X_DPI and Y_DPI must be the same, and may be either 90 or 180. */
#define X_DPI 180
#define Y_DPI 180
/* The device descriptors */
static dev_proc_print_page(lj250_print_page);
static dev_proc_print_page(paintjet_print_page);
static dev_proc_print_page(pjetxl_print_page);
static int pj_common_print_page(gx_device_printer *, gp_file *, int, const char *);
/* Since the print_page doesn't alter the device, this device can print in the background */
static void
paintjet_initialize_device_procs(gx_device *dev)
{
gdev_prn_initialize_device_procs_bg(dev);
set_dev_proc(dev, map_rgb_color, gdev_pcl_3bit_map_rgb_color);
set_dev_proc(dev, map_color_rgb, gdev_pcl_3bit_map_color_rgb);
/* The prn macros used in previous versions of the code leave
* encode_color and decode_color set to NULL (which are then rewritten
* by the system to the default. For compatibility we do the same. */
set_dev_proc(dev, encode_color, gdev_pcl_3bit_map_rgb_color);
set_dev_proc(dev, decode_color, gdev_pcl_3bit_map_color_rgb);
}
const gx_device_printer far_data gs_lj250_device =
prn_device(paintjet_initialize_device_procs, "lj250",
85, /* width_10ths, 8.5" */
110, /* height_10ths, 11" */
X_DPI, Y_DPI,
0.25, 0, 0.25, 0, /* margins */
3, lj250_print_page);
const gx_device_printer far_data gs_paintjet_device =
prn_device(paintjet_initialize_device_procs, "paintjet",
85, /* width_10ths, 8.5" */
110, /* height_10ths, 11" */
X_DPI, Y_DPI,
0.25, 0, 0.25, 0, /* margins */
3, paintjet_print_page);
const gx_device_printer far_data gs_pjetxl_device =
prn_device(paintjet_initialize_device_procs, "pjetxl",
85, /* width_10ths, 8.5" */
110, /* height_10ths, 11" */
X_DPI, Y_DPI,
0.25, 0, 0, 0, /* margins */
3, pjetxl_print_page);
/* Forward references */
static int compress1_row(const byte *, const byte *, byte *);
/* ------ Internal routines ------ */
/* Send a page to the LJ250. We need to enter and exit */
/* the PaintJet emulation mode. */
static int
lj250_print_page(gx_device_printer *pdev, gp_file *prn_stream)
{ gp_fputs("\033%8", prn_stream); /* Enter PCL emulation mode */
/* ends raster graphics to set raster graphics resolution */
gp_fputs("\033*rB", prn_stream);
/* Exit PCL emulation mode after printing */
return pj_common_print_page(pdev, prn_stream, 0, "\033*r0B\014\033%@");
}
/* Send a page to the PaintJet. */
static int
paintjet_print_page(gx_device_printer *pdev, gp_file *prn_stream)
{ /* ends raster graphics to set raster graphics resolution */
gp_fputs("\033*rB", prn_stream);
return pj_common_print_page(pdev, prn_stream, 0, "\033*r0B\014");
}
/* Send a page to the PaintJet XL. */
static int
pjetxl_print_page(gx_device_printer *pdev, gp_file *prn_stream)
{ /* Initialize PaintJet XL for printing */
gp_fputs("\033E", prn_stream);
/* The XL has a different vertical origin, who knows why?? */
return pj_common_print_page(pdev, prn_stream, -360, "\033*rC");
}
/* Send the page to the printer. Compress each scan line. */
static int
pj_common_print_page(gx_device_printer *pdev, gp_file *prn_stream, int y_origin,
const char *end_page)
{
int line_size;
int data_size;
byte *data = NULL;
byte *plane_data = NULL;
byte *temp = NULL;
int code = 0;
/* We round up line_size to a multiple of 8 bytes */
/* because that's the unit of transposition from pixels to planes. */
line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev);
line_size = (line_size + 7) / 8 * 8;
data_size = line_size * 8;
data =
(byte *)gs_malloc(pdev->memory, data_size, 1,
"paintjet_print_page(data)");
plane_data =
(byte *)gs_malloc(pdev->memory, line_size * 3, 1,
"paintjet_print_page(plane_data)");
temp = gs_malloc(pdev->memory, line_size * 2, 1, "paintjet_print_page(temp)");
if ( data == 0 || plane_data == 0 || temp == 0)
{ if ( data )
gs_free(pdev->memory, (char *)data, data_size, 1,
"paintjet_print_page(data)");
if ( plane_data )
gs_free(pdev->memory, (char *)plane_data, line_size * 3, 1,
"paintjet_print_page(plane_data)");
if (temp)
gs_free(pdev->memory, temp, line_size * 2, 1,
"paintjet_print_page(temp)");
return_error(gs_error_VMerror);
}
memset(data, 0x00, data_size);
/* set raster graphics resolution -- 90 or 180 dpi */
gp_fprintf(prn_stream, "\033*t%dR", X_DPI);
/* set the line width */
gp_fprintf(prn_stream, "\033*r%dS", data_size);
/* set the number of color planes */
gp_fprintf(prn_stream, "\033*r%dU", 3); /* always 3 */
/* move to top left of page */
gp_fprintf(prn_stream, "\033&a0H\033&a%dV", y_origin);
/* select data compression */
gp_fputs("\033*b1M", prn_stream);
/* start raster graphics */
gp_fputs("\033*r1A", prn_stream);
/* Send each scan line in turn */
{ int lnum;
int num_blank_lines = 0;
for ( lnum = 0; lnum < pdev->height; lnum++ )
{ byte *end_data = data + line_size;
code = gdev_prn_copy_scan_lines(pdev, lnum,
(byte *)data, line_size);
if (code < 0)
goto xit;
/* Remove trailing 0s. */
while ( end_data > data && end_data[-1] == 0 )
end_data--;
if ( end_data == data )
{ /* Blank line */
num_blank_lines++;
}
else
{ int i;
byte *odp;
byte *row;
/* Pad with 0s to fill out the last */
/* block of 8 bytes. */
memset(end_data, 0, 7);
/* Transpose the data to get pixel planes. */
for ( i = 0, odp = plane_data; i < data_size;
i += 8, odp++
)
{ /* The following is for 16-bit machines */
#define spread3(c)\
{ 0, c, c*0x100, c*0x101, c*0x10000L, c*0x10001L, c*0x10100L, c*0x10101L }
static ulong spr40[8] = spread3(0x40);
static ulong spr8[8] = spread3(8);
static ulong spr2[8] = spread3(2);
register byte *dp = data + i;
register ulong pword =
(spr40[dp[0]] << 1) +
(spr40[dp[1]]) +
(spr40[dp[2]] >> 1) +
(spr8[dp[3]] << 1) +
(spr8[dp[4]]) +
(spr8[dp[5]] >> 1) +
(spr2[dp[6]]) +
(spr2[dp[7]] >> 1);
odp[0] = (byte)(pword >> 16);
odp[line_size] = (byte)(pword >> 8);
odp[line_size*2] = (byte)(pword);
}
/* Skip blank lines if any */
if ( num_blank_lines > 0 )
{ /* move down from current position */
gp_fprintf(prn_stream, "\033&a+%dV",
num_blank_lines * (720 / Y_DPI));
num_blank_lines = 0;
}
/* Transfer raster graphics */
/* in the order R, G, B. */
for ( row = plane_data + line_size * 2, i = 0;
i < 3; row -= line_size, i++
)
{
int count = compress1_row(row, row + line_size, temp);
gp_fprintf(prn_stream, "\033*b%d%c",
count, "VVW"[i]);
gp_fwrite(temp, sizeof(byte),
count, prn_stream);
}
}
}
}
/* end the page */
gp_fputs(end_page, prn_stream);
xit:
gs_free(pdev->memory, (char *)data, data_size, 1, "paintjet_print_page(data)");
gs_free(pdev->memory, (char *)plane_data, line_size * 3, 1, "paintjet_print_page(plane_data)");
gs_free(pdev->memory, temp, line_size * 2, 1, "paintjet_print_page(temp)");
return code;
}
/*
* Row compression for the H-P PaintJet.
* Compresses data from row up to end_row, storing the result
* starting at compressed. Returns the number of bytes stored.
* The compressed format consists of a byte N followed by a
* data byte that is to be repeated N+1 times.
* In the worst case, the `compressed' representation is
* twice as large as the input.
* We complement the bytes at the same time, because
* we accumulated the image in complemented form.
*/
static int
compress1_row(const byte *row, const byte *end_row,
byte *compressed)
{ register const byte *in = row;
register byte *out = compressed;
while ( in < end_row )
{ byte test = *in++;
const byte *run = in;
while ( in < end_row && *in == test ) in++;
/* Note that in - run + 1 is the repetition count. */
while ( in - run > 255 )
{ *out++ = 255;
*out++ = ~test;
run += 256;
}
*out++ = in - run;
*out++ = ~test;
}
return out - compressed;
}
|
