summaryrefslogtreecommitdiff
blob: b3c3690b1fc8088a0bb22070cd2bee7a5e51c49f (plain)
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
/* Copyright (C) 2001-2020 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.,  1305 Grant Avenue - Suite 200, Novato,
   CA 94945, U.S.A., +1(415)492-9861, for further information.
*/


/* $Id: gdevjpx.c 6300 2005-12-28 19:56:24Z giles $ */
/* JPX encode filter test device */

#include "gdevprn.h"
#include "stream.h"
#include "strimpl.h"
#include "sjpx_luratech.h"

/* Structure for the JPX-writing device. */
typedef struct gx_device_jpx_s {
    gx_device_common;
    gx_prn_device_common;
} gx_device_jpx;

/* The device descriptor */
static dev_proc_print_page(jpx_print_page);

/* ------ The device descriptors ------ */

/* Default X and Y resolution. */
#ifndef X_DPI
#  define X_DPI 72
#endif
#ifndef Y_DPI
#  define Y_DPI 72
#endif

static dev_proc_print_page(jpx_print_page);

/* 24 bit RGB default */
/* Since the print_page doesn't alter the device, this device can print in the background */
static const gx_device_procs jpxrgb_procs =
prn_color_procs(gdev_prn_open, gdev_prn_bg_output_page, gdev_prn_close,
                       gx_default_rgb_map_rgb_color,
                       gx_default_rgb_map_color_rgb);
const gx_device_printer gs_jpxrgb_device = {
    prn_device_std_body(gx_device_jpx, jpxrgb_procs, "jpx",
        DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
        X_DPI, Y_DPI,	/* resolution */
        0, 0, 0, 0,	/* margins */
        24,		/* bits per pixel */
        jpx_print_page)
};

/* 8 bit Grayscale */
/* Since the print_page doesn't alter the device, this device can print in the background */
static const gx_device_procs jpxgray_procs =
prn_color_procs(gdev_prn_open, gdev_prn_bg_output_page, gdev_prn_close,
                       gx_default_gray_map_rgb_color,
                       gx_default_gray_map_color_rgb);
const gx_device_printer gs_jpxgray_device = {
    prn_device_body(gx_device_jpx, jpxgray_procs, "jpxgray",
        DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
        X_DPI, Y_DPI,	/* resolution */
        0, 0, 0, 0,	/* margins */
        1, 8, 255, 0, 256, 0, /* components, depth and min/max values */
        jpx_print_page)
};

/* 32 bit CMKY */
static dev_proc_map_color_rgb(jpx_cmyk_map_color_rgb);
static dev_proc_map_cmyk_color(jpx_cmyk_map_cmyk_color);
static const gx_device_procs jpxcmyk_procs =
{       gdev_prn_open,
        gx_default_get_initial_matrix,
/* Since the print_page doesn't alter the device, this device can print in the background */
        NULL,   /* sync_output */
        gdev_prn_bg_output_page,
        gdev_prn_close,
        NULL,
        jpx_cmyk_map_color_rgb,
        NULL,   /* fill_rectangle */
        NULL,   /* tile_rectangle */
        NULL,   /* copy_mono */
        NULL,   /* copy_color */
        NULL,   /* draw_line */
        NULL,   /* get_bits */
        gdev_prn_get_params,
        gdev_prn_put_params,
        jpx_cmyk_map_cmyk_color,
        NULL,   /* get_xfont_procs */
        NULL,   /* get_xfont_device */
        NULL,   /* map_rgb_alpha_color */
        gx_page_device_get_page_device  /* get_page_device */
};
const gx_device_printer gs_jpxcmyk_device = {
    prn_device_std_body(gx_device_jpx, jpxcmyk_procs, "jpxcmyk",
        DEFAULT_WIDTH_10THS, DEFAULT_HEIGHT_10THS,
        X_DPI, Y_DPI,	/* resolution */
        0, 0, 0, 0,	/* margins */
        32,		/* bits per pixel */
        jpx_print_page)
};

/* private color conversion routines;
   we don't seem to have defaults for cmyk. */
static int
jpx_cmyk_map_color_rgb(gx_device * dev, gx_color_index color,
                        gx_color_value prgb[3])
{
    int not_k = color & 0xff,
        r = not_k - ~(color >> 24),
        g = not_k - ~((color >> 16) & 0xff),
        b = not_k - ~((color >> 8) & 0xff);

    prgb[0] = (r < 0 ? 0 : gx_color_value_from_byte(r));
    prgb[1] = (g < 0 ? 0 : gx_color_value_from_byte(g));
    prgb[2] = (b < 0 ? 0 : gx_color_value_from_byte(b));
    return 0;
}

static gx_color_index
jpx_cmyk_map_cmyk_color(gx_device * dev, const gx_color_value cv[])
{
    gx_color_index color = ~(
        gx_color_value_to_byte(cv[3]) +
        ((uint)gx_color_value_to_byte(cv[2]) << 8) +
        ((uint)gx_color_value_to_byte(cv[1]) << 16) +
        ((uint)gx_color_value_to_byte(cv[0]) << 24));

    return (color == gx_no_color_index ? color ^ 1 : color);
}

/* Send the page to the file. */
static int
jpx_print_page(gx_device_printer * pdev, gp_file * prn_stream)
{
    gx_device_jpx *jdev = (gx_device_jpx *) pdev;
    gs_memory_t *mem = jdev->memory;
    int line_size = gdev_mem_bytes_per_scan_line((gx_device *) pdev);
    byte *in = gs_alloc_bytes(mem, line_size, "jpx_print_page(in)");
    byte *fbuf = 0;
    uint fbuf_size;
    byte *jbuf = 0;
    uint jbuf_size;
    int lnum;
    int code = 0;
    stream_jpxe_state state;
    stream fstrm, cstrm;

    if (in == 0) {
        code = gs_note_error(gs_error_VMerror);
        goto fail;
    }
    /* Create the jpx encoder state. */
    s_init_state((stream_state *)&state, &s_jpxe_template, 0);
    if (state.templat->set_defaults)
        (*state.templat->set_defaults) ((stream_state *) & state);
    state.width = jdev->width;
    state.height = jdev->height;
    switch (jdev->color_info.depth) {
        case 32: state.colorspace = gs_jpx_cs_cmyk; break;
        case 24: state.colorspace = gs_jpx_cs_rgb; break;
        case  8: state.colorspace = gs_jpx_cs_gray; break;
        default:
            state.colorspace = gs_jpx_cs_gray; /* safest option */
            dmlprintf1(mem, "unexpected color_info depth %d\n",
                                        jdev->color_info.depth);
    }
    state.bpc = 8; /* currently only 8 bits per component is supported */

    /* ask for lossless encoding */
    /* state.lossless = 1; */
    /* or, set the quality level different from the default */
    /* state.quality = 35; */

    /* Set up the streams. */
    fbuf_size = max(512 /* arbitrary */ , state.templat->min_out_size);
    jbuf_size = state.templat->min_in_size;
    if ((fbuf = gs_alloc_bytes(mem, fbuf_size, "jpx_print_page(fbuf)")) == 0 ||
        (jbuf = gs_alloc_bytes(mem, jbuf_size, "jpx_print_page(jbuf)")) == 0
        ) {
        code = gs_note_error(gs_error_VMerror);
        goto done;
    }
    s_init(&fstrm, mem);
    swrite_file(&fstrm, prn_stream, fbuf, fbuf_size);
    s_init(&cstrm, mem);
    s_std_init(&cstrm, jbuf, jbuf_size, &s_filter_write_procs,
               s_mode_write);
    cstrm.state = (stream_state *) & state;
    cstrm.procs.process = state.templat->process;
    cstrm.strm = &fstrm;
    if (state.templat->init)
        (*state.templat->init) (cstrm.state);

    /* Copy the data to the output. */
    for (lnum = 0; lnum < jdev->height; ++lnum) {
        byte *data;
        uint ignore_used;

        if (cstrm.end_status) {
            code = gs_note_error(gs_error_ioerror);
            goto done;
        }
        code = gdev_prn_get_bits(pdev, lnum, in, &data);
        if (code < 0)
            goto done;
        sputs(&cstrm, data, state.stride, &ignore_used);
    }

    /* Wrap up. */
    sclose(&cstrm);
    sflush(&fstrm);
  done:
    gs_free_object(mem, jbuf, "jpx_print_page(jbuf)");
    gs_free_object(mem, fbuf, "jpx_print_page(fbuf)");
    gs_free_object(mem, in, "jpx_print_page(in)");
    return code;
  fail:
    gs_free_object(mem, in, "jpx_print_page(in)");
    return code;
}