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
|
/* Copyright (C) 2000-2011 by George Williams */
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "gimage.h"
#include "string.h"
int GImageWriteXbm(GImage *gi, char *filename) {
struct _GImage *base = gi->list_len==0?gi->u.image:gi->u.images[0];
FILE *file;
int i,j, val,val2,k;
char stem[256];
char *pt; uint8 *scanline;
if ( base->image_type!=it_mono )
return(false );
if (( pt = strrchr(filename,'/'))==NULL )
strcpy(stem,filename);
else
strcpy(stem,pt+1);
if ( (pt = strchr(stem,'.'))!=NULL )
*pt = '\0';
if ((file=fopen(filename,"w"))==NULL )
return(false);
fprintf(file,"#define %s_width %d\n", stem, (int) base->width );
fprintf(file,"#define %s_height %d\n", stem, (int) base->height );
fprintf(file,"static unsigned char %s_bits[] = {\n", stem );
for ( i=0; i<base->height; ++i ) {
fprintf(file," ");
scanline = base->data + i*base->bytes_per_line;
for ( j=0; j<base->bytes_per_line; ++j ) {
val = *scanline++; val2=0;
for ( k=0; k<8 ; ++k ) {
if ( (val&(1<<k)) )
val2 |= (0x80>>k);
}
fprintf(file,"0x%x%s", val2^0xff, i==base->height-1 && j==base->bytes_per_line-1?"":", " );
}
fprintf(file,"\n");
}
fprintf(file,"};\n");
fflush(file);
i = ferror(file);
fclose(file);
return( !i );
}
|
