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
|
#include "filter_common.h"
#include <string.h>
void
init(struct imlib_filter_info *info)
{
char *filters[] = { "tint", "cool_text", "gradient" };
int i = 0;
info->name = strdup("Test Filter");
info->author = strdup("Chris Ross - Boris - chris@darkrock.co.uk");
info->description =
strdup
("This filter is used to show that the imlib2 filter system works!");
info->num_filters = 3;
info->filters = malloc(sizeof(char *) * 3);
for (i = 0; i < info->num_filters; i++)
info->filters[i] = strdup(filters[i]);
}
void
deinit(void)
{
return;
}
void *
exec(char *filter, void *im, pIFunctionParam params)
{
Imlib_Image imge = im;
Imlib_Image anoim;
IFunctionParam *ptr;
if (strcmp(filter, "tint") == 0)
{
Imlib_Color_Modifier cm;
DATA8 atab[256];
int x = 0, y = 0, w = 0, h = 0;
DATA8 r = 255, b = 255, g = 255, a = 255;
/*
printf( "filter_test.c: tint called\n" );
*/
/* Set friendly defaults */
imlib_context_set_image(imge);
w = imlib_image_get_width();
h = imlib_image_get_height();
for (ptr = params; ptr; ptr = ptr->next)
{
ASSIGN_DATA8("red", r);
ASSIGN_DATA8("blue", b);
ASSIGN_DATA8("green", g);
ASSIGN_INT("x", x);
ASSIGN_INT("y", y);
ASSIGN_INT("w", w);
ASSIGN_INT("h", h);
ASSIGN_DATA8("alpha", a);
}
/*
printf( "Using values red=%d,blue=%d,green=%d,x=%d,y=%d,height=%d,width=%d,alpha=%d\n", r,b,g,x,y,w,h,a );
*/
anoim = imlib_create_image(w, h);
cm = imlib_create_color_modifier();
imlib_context_set_color_modifier(cm);
imlib_context_set_image(anoim);
imlib_context_set_color(r, g, b, 255);
imlib_image_fill_rectangle(0, 0, w, h);
imlib_context_set_blend(1);
imlib_image_set_has_alpha(1);
memset(atab, a, sizeof(atab));
imlib_set_color_modifier_tables(NULL, NULL, NULL, atab);
imlib_apply_color_modifier_to_rectangle(0, 0, w, h);
imlib_context_set_image(imge);
imlib_blend_image_onto_image(anoim, 0, 0, 0, w, h, x, y, w, h);
imlib_free_color_modifier();
imlib_context_set_image(anoim);
imlib_free_image_and_decache();
imlib_context_set_image(imge);
return imge;
}
if (strcmp(filter, "cool_text") == 0)
{
return imge;
}
if (strcmp(filter, "gradient") == 0)
{
int angle = 0;
for (ptr = params; ptr; ptr = ptr->next)
{
ASSIGN_INT("angle", angle);
}
return imge;
}
return imge;
}
|
