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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpoperationvaluemode.c
* Copyright (C) 2008 Michael Natterer <mitch@gimp.org>
* 2012 Ville Sokk <ville.sokk@gmail.com>
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl-plugin.h>
#include <cairo.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "libgimpcolor/gimpcolor.h"
#include "../operations-types.h"
#include "gimpoperationhsvvaluelegacy.h"
static gboolean gimp_operation_hsv_value_legacy_process (GeglOperation *op,
void *in,
void *layer,
void *mask,
void *out,
glong samples,
const GeglRectangle *roi,
gint level);
G_DEFINE_TYPE (GimpOperationHsvValueLegacy, gimp_operation_hsv_value_legacy,
GIMP_TYPE_OPERATION_LAYER_MODE)
static void
gimp_operation_hsv_value_legacy_class_init (GimpOperationHsvValueLegacyClass *klass)
{
GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (klass);
GimpOperationLayerModeClass *layer_mode_class = GIMP_OPERATION_LAYER_MODE_CLASS (klass);
gegl_operation_class_set_keys (operation_class,
"name", "gimp:hsv-value-legacy",
"description", "GIMP value mode operation",
NULL);
layer_mode_class->process = gimp_operation_hsv_value_legacy_process;
}
static void
gimp_operation_hsv_value_legacy_init (GimpOperationHsvValueLegacy *self)
{
}
static gboolean
gimp_operation_hsv_value_legacy_process (GeglOperation *op,
void *in_p,
void *layer_p,
void *mask_p,
void *out_p,
glong samples,
const GeglRectangle *roi,
gint level)
{
GimpOperationLayerMode *layer_mode = (gpointer) op;
gfloat *in = in_p;
gfloat *out = out_p;
gfloat *layer = layer_p;
gfloat *mask = mask_p;
gfloat opacity = layer_mode->opacity;
while (samples--)
{
GimpHSV layer_hsv, out_hsv;
GimpRGB layer_rgb = {layer[0], layer[1], layer[2]};
GimpRGB out_rgb = {in[0], in[1], in[2]};
gfloat comp_alpha, new_alpha;
comp_alpha = MIN (in[ALPHA], layer[ALPHA]) * opacity;
if (mask)
comp_alpha *= *mask;
new_alpha = in[ALPHA] + (1.0f - in[ALPHA]) * comp_alpha;
if (comp_alpha && new_alpha)
{
gint b;
gfloat out_tmp[3];
gfloat ratio = comp_alpha / new_alpha;
gimp_rgb_to_hsv (&layer_rgb, &layer_hsv);
gimp_rgb_to_hsv (&out_rgb, &out_hsv);
out_hsv.v = layer_hsv.v;
gimp_hsv_to_rgb (&out_hsv, &out_rgb);
out_tmp[0] = out_rgb.r;
out_tmp[1] = out_rgb.g;
out_tmp[2] = out_rgb.b;
for (b = RED; b < ALPHA; b++)
{
out[b] = out_tmp[b] * ratio + in[b] * (1.0f - ratio);
}
}
else
{
gint b;
for (b = RED; b < ALPHA; b++)
{
out[b] = in[b];
}
}
out[ALPHA] = in[ALPHA];
in += 4;
layer += 4;
out += 4;
if (mask)
mask++;
}
return TRUE;
}
|
