Fredrik Lundh is sharing code with you

Bitbucket is a code hosting site. Unlimited public and private repositories. Free for small teams.

Don't show this again

effbot / pil-2009-raclette http://effbot.org/zone/pil-index.htm

Work repository for PIL 1.1.7 and beyond. The "default" branch should be fairly solid, the other branches less so. For production use, see the pil-117 repository.

Clone this repository (size: 1.6 MB): HTTPS / SSH 
hg clone https://bitbucket.org/effbot/pil-2009-raclette
hg clone ssh://hg@bitbucket.org/effbot/pil-2009-raclette

pil-2009-raclette / libImaging / EpsEncode.c

Tag
pil-117-20090317
pil-117a1-20090317
  • 454b4d2672f3
  • 80 loc
  • 1.4 KB
 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

/* 
 * The Python Imaging Library.
 * $Id: EpsEncode.c 2134 2004-10-06 08:55:20Z fredrik $
 *
 * encoder for EPS hex data
 *
 * history:
 *      96-04-19 fl     created
 *      96-06-27 fl     don't drop last block of encoded data
 *
 * notes:
 *      FIXME: rename to HexEncode.c ??
 *
 * Copyright (c) Fredrik Lundh 1996.
 * Copyright (c) Secret Labs AB 1997.
 *
 * See the README file for information on usage and redistribution.
 */


#include "Imaging.h"


int
ImagingEpsEncode(Imaging im, ImagingCodecState state, UINT8* buf, int bytes)
{
    enum { HEXBYTE=1, NEWLINE };
    const char *hex = "0123456789abcdef";

    UINT8* ptr = buf;
    UINT8* in, i;

    if (!state->state) {
        state->state = HEXBYTE;
        state->xsize *= im->pixelsize; /* Hack! */
    }

    in = (UINT8*) im->image[state->y];

    for (;;) {

        if (state->state == NEWLINE) {
            if (bytes < 1)
                break;
            *ptr++ = '\n';
            bytes--;
            state->state = HEXBYTE;
        }

        if (bytes < 2)
            break;

        i = in[state->x++];
        *ptr++ = hex[(i>>4)&15];
        *ptr++ = hex[i&15];
        bytes -= 2;

        /* Skip junk bytes */
        if (im->bands == 3 && (state->x & 3) == 3)
            state->x++;

        if (++state->count >= 79/2) {
            state->state = NEWLINE;
            state->count = 0;
        }

        if (state->x >= state->xsize) {
            state->x = 0;
            if (++state->y >= state->ysize) {
                state->errcode = IMAGING_CODEC_END;
                break;
            }
            in = (UINT8*) im->image[state->y];
        }

    }

    return ptr - buf;
    
}