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
|
/* 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.
*/
/* $Id$ */
/* 12-bit & 24-bit RGB uncompressed TIFF driver */
#include "stdint_.h" /* for tiff.h */
#include "gdevtifs.h"
#include "gdevprn.h"
#include "gscms.h"
/*
* Thanks to Alan Barclay <alan@escribe.co.uk> for donating the original
* version of this code to Ghostscript.
*/
/* ------ The device descriptors ------ */
/* Default X and Y resolution */
#define X_DPI 72
#define Y_DPI 72
static dev_proc_print_page(tiff12_print_page);
static dev_proc_print_page(tiff_rgb_print_page);
static const gx_device_procs tiff12_procs =
prn_color_params_procs(tiff_open, tiff_output_page, tiff_close,
gx_default_rgb_map_rgb_color, gx_default_rgb_map_color_rgb,
tiff_get_params, tiff_put_params);
static const gx_device_procs tiff24_procs =
prn_color_params_procs(tiff_open, tiff_output_page, tiff_close,
gx_default_rgb_map_rgb_color, gx_default_rgb_map_color_rgb,
tiff_get_params, tiff_put_params);
const gx_device_tiff gs_tiff12nc_device = {
prn_device_std_body(gx_device_tiff, tiff12_procs, "tiff12nc",
DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
X_DPI, Y_DPI,
0, 0, 0, 0,
24, tiff12_print_page),
arch_is_big_endian /* default to native endian (i.e. use big endian iff the platform is so*/,
COMPRESSION_NONE,
TIFF_DEFAULT_STRIP_SIZE,
TIFF_DEFAULT_DOWNSCALE,
0, /* Adjust size */
1 /* MinFeatureSize */
};
const gx_device_tiff gs_tiff24nc_device = {
prn_device_std_body(gx_device_tiff, tiff24_procs, "tiff24nc",
DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
X_DPI, Y_DPI,
0, 0, 0, 0,
24, tiff_rgb_print_page),
arch_is_big_endian /* default to native endian (i.e. use big endian iff the platform is so*/,
COMPRESSION_NONE,
TIFF_DEFAULT_STRIP_SIZE,
TIFF_DEFAULT_DOWNSCALE,
0, /* Adjust size */
1 /* MinFeatureSize */
};
const gx_device_tiff gs_tiff48nc_device = {
prn_device_std_body(gx_device_tiff, tiff24_procs, "tiff48nc",
DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
X_DPI, Y_DPI,
0, 0, 0, 0,
48, tiff_rgb_print_page),
arch_is_big_endian /* default to native endian (i.e. use big endian iff the platform is so*/,
COMPRESSION_NONE,
TIFF_DEFAULT_STRIP_SIZE,
TIFF_DEFAULT_DOWNSCALE,
0, /* Adjust size */
1 /* MinFeatureSize */
};
/* ------ Private functions ------ */
static void
tiff_set_rgb_fields(gx_device_tiff *tfdev)
{
/* Put in a switch statement in case we want to have others */
switch (tfdev->device_icc_profile->data_cs) {
case gsRGB:
TIFFSetField(tfdev->tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
break;
case gsCIELAB:
TIFFSetField(tfdev->tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_ICCLAB);
break;
default:
TIFFSetField(tfdev->tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
break;
}
TIFFSetField(tfdev->tif, TIFFTAG_FILLORDER, FILLORDER_MSB2LSB);
TIFFSetField(tfdev->tif, TIFFTAG_SAMPLESPERPIXEL, 3);
tiff_set_compression((gx_device_printer *)tfdev, tfdev->tif,
tfdev->Compression, tfdev->MaxStripSize);
}
static int
tiff12_print_page(gx_device_printer * pdev, FILE * file)
{
gx_device_tiff *const tfdev = (gx_device_tiff *)pdev;
int code;
/* open the TIFF device */
if (gdev_prn_file_is_new(pdev)) {
tfdev->tif = tiff_from_filep(pdev->dname, file, tfdev->BigEndian);
if (!tfdev->tif)
return_error(gs_error_invalidfileaccess);
}
code = gdev_tiff_begin_page(tfdev, file);
if (code < 0)
return code;
TIFFSetField(tfdev->tif, TIFFTAG_BITSPERSAMPLE, 4);
tiff_set_rgb_fields(tfdev);
TIFFCheckpointDirectory(tfdev->tif);
/* Write the page data. */
{
int y;
int size = gdev_prn_raster(pdev);
byte *data = gs_alloc_bytes(pdev->memory, size, "tiff12_print_page");
if (data == 0)
return_error(gs_error_VMerror);
memset(data, 0, size);
for (y = 0; y < pdev->height; ++y) {
const byte *src;
byte *dest;
int x;
code = gdev_prn_copy_scan_lines(pdev, y, data, size);
if (code < 0)
break;
for (src = data, dest = data, x = 0; x < size;
src += 6, dest += 3, x += 6
) {
dest[0] = (src[0] & 0xf0) | (src[1] >> 4);
dest[1] = (src[2] & 0xf0) | (src[3] >> 4);
dest[2] = (src[4] & 0xf0) | (src[5] >> 4);
}
TIFFWriteScanline(tfdev->tif, data, y, 0);
}
gs_free_object(pdev->memory, data, "tiff12_print_page");
TIFFWriteDirectory(tfdev->tif);
}
return code;
}
static int
tiff_rgb_print_page(gx_device_printer * pdev, FILE * file)
{
gx_device_tiff *const tfdev = (gx_device_tiff *)pdev;
int code;
/* open the TIFF device */
if (gdev_prn_file_is_new(pdev)) {
tfdev->tif = tiff_from_filep(pdev->dname, file, tfdev->BigEndian);
if (!tfdev->tif)
return_error(gs_error_invalidfileaccess);
}
code = gdev_tiff_begin_page(tfdev, file);
if (code < 0)
return code;
TIFFSetField(tfdev->tif, TIFFTAG_BITSPERSAMPLE,
pdev->color_info.depth / pdev->color_info.num_components);
tiff_set_rgb_fields(tfdev);
/* Write the page data. */
return tiff_print_page(pdev, tfdev->tif, 0);
}
|
