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
|
/*
* Copyright 1994-2022 Olivier Girondel
* Copyright 2019-2022 Tavasti
*
* This file is part of lebiniou.
*
* lebiniou is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* lebiniou 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with lebiniou. If not, see <http://www.gnu.org/licenses/>.
*/
/* Plugin idea: show only pixels that differ more than MIN_DIFFERENCE
from reference picture. For showing pixels, we use colorvalue of
difference between cam and active buffer */
#include "context.h"
#include "pthread_utils.h"
#define MIN_DIFFERENCE 40 /* how much color value has to differ from initial
to be shown. Lower values show target better,
but also show more flickering */
uint32_t version = 0;
uint32_t options = BO_GFX | BO_LENS | BO_WEBCAM | BO_NORANDOM;
char desc[] = "Show cam pic which differs";
char dname[] = "TV diff 4";
enum LayerMode mode = LM_OVERLAY;
void
run(Context_t *ctx)
{
Pixel_t *src1, *start, *src2, *src3, *dst;
dst = start = passive_buffer(ctx)->buffer;
if (!xpthread_mutex_lock(&ctx->cam_mtx[ctx->cam])) {
src1 = ctx->cam_save[ctx->cam][0]->buffer;
src2 = ctx->cam_ref0[ctx->cam]->buffer;
src3 = active_buffer(ctx)->buffer;
for (; dst < start + BUFFSIZE * sizeof(Pixel_t); src1++, src2++, src3++, dst++) {
if (((*src1 - *src2) > MIN_DIFFERENCE) ||
((*src2 - *src1) > MIN_DIFFERENCE) ) {
*dst = *src1 < *src3 ? (*src3 - *src1) : (*src1 - *src3);
} else {
*dst = 0;
}
}
xpthread_mutex_unlock(&ctx->cam_mtx[ctx->cam]);
}
}
|
