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
|
/* dlink350f.c
*
* orientation, byte order, and brightness correction for the D-Link 350F
*
* Copyright 2003 Mark Slemko <slemkom@users.sourceforge.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gphoto2/gphoto2-library.h>
#include <gphoto2/gphoto2-port-log.h>
#define GP_MODULE "dlink350f"
#include "dlink350f.h"
#define RED(p,x,y,w) *((p)+3*((y)*(w)+(x)) )
#define GREEN(p,x,y,w) *((p)+3*((y)*(w)+(x))+1)
#define BLUE(p,x,y,w) *((p)+3*((y)*(w)+(x))+2)
#define SWAP(a,b) {unsigned char t=(a); (a)=(b); (b)=t;}
#define MINMAX(a,min,max) { (min)=MIN(min,a); (max)=MAX(max,a); }
#ifndef MAX
# define MAX(a, b) ((a) > (b) ? (a) : (b))
#endif
#ifndef MIN
# define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
/*
* function added for the D-Link DSC 350F - written by Mark Slemko - mslemko@netscape.net
* This function correctly adjusts the color and orientation of the image
*/
int dlink_dsc350f_postprocessing_and_flip_both (int width, int height, unsigned char* rgb) {
unsigned char *start, *end, c;
int whichcolor = 0;
int lowred=255, lowgreen=255, lowblue=255;
int hired=0, higreen=0, hiblue=0;
GP_DEBUG("flipping byte order");
/* flip image left/right and top/bottom (actually reverse byte order) */
start = rgb;
end = start + ((width * height) * 3);
while (start < end) {
c = *start;
/* validation - debugging info - collect the color range info
* for first half of image.
*/
switch (whichcolor % 3) {
case 0: /* blue */
MINMAX((int)c,lowblue,hiblue);
break;
case 1: /* green */
MINMAX((int)c,lowgreen,higreen);
break;
default: /* red */
MINMAX((int)c,lowred,hired);
break;
}
/* adjust color magnitude, since it appears that the 350f only had 7 bits of color info */
*start++ = *--end << 1;
*end = c << 1;
whichcolor++;
}
/* could do more color processing here
GP_DEBUG("adjusting color");
// adjust image colours
start = rgb;
end = start + ((width * height) * 3);
while (start < end) {
c = *start++;
}
*/
/* show the color range of image in debug mode. */
GP_DEBUG("\nred low = %d high = %d\ngreen low = %d high = %d\nblue low = %d high = %d\n", lowred,hired, lowgreen,higreen, lowblue,hiblue);
return GP_OK;
}
|
