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
141
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bke
*/
#include "MEM_guardedalloc.h"
#include "BLI_bitmap_draw_2d.h"
#include "BLI_math_geom.h"
#include "BLI_utildefines.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "BKE_icons.h"
#include "BLI_strict_flags.h"
struct UserRasterInfo {
int pt[3][2];
const uint *color;
/* only for smooth shading */
struct {
float pt_fl[3][2];
uint color_u[3][4];
} smooth;
int rect_size[2];
uint *rect;
};
static void tri_fill_flat(int x, int x_end, int y, void *user_data)
{
struct UserRasterInfo *data = user_data;
uint *p = &data->rect[(y * data->rect_size[1]) + x];
uint col = data->color[0];
while (x++ != x_end) {
*p++ = col;
}
}
static void tri_fill_smooth(int x, int x_end, int y, void *user_data)
{
struct UserRasterInfo *data = user_data;
uint *p = &data->rect[(y * data->rect_size[1]) + x];
float pt_step_fl[2] = {(float)x, (float)y};
while (x++ != x_end) {
float w[3];
barycentric_weights_v2_clamped(UNPACK3(data->smooth.pt_fl), pt_step_fl, w);
uint col_u[4] = {0, 0, 0, 0};
for (uint corner = 0; corner < 3; corner++) {
for (uint chan = 0; chan < 4; chan++) {
col_u[chan] += data->smooth.color_u[corner][chan] * (uint)(w[corner] * 255.0f);
}
}
union {
uint as_u32;
uchar as_bytes[4];
} col;
col.as_bytes[0] = (uchar)(col_u[0] / 255);
col.as_bytes[1] = (uchar)(col_u[1] / 255);
col.as_bytes[2] = (uchar)(col_u[2] / 255);
col.as_bytes[3] = (uchar)(col_u[3] / 255);
*p++ = col.as_u32;
pt_step_fl[0] += 1.0f;
}
}
ImBuf *BKE_icon_geom_rasterize(const struct Icon_Geom *geom,
const unsigned int size_x,
const unsigned int size_y)
{
const int coords_len = geom->coords_len;
const uchar(*pos)[2] = geom->coords;
const uint *col = (void *)geom->colors;
/* TODO(campbell): Currently rasterizes to fixed size, then scales.
* Should rasterize to double size for eg instead. */
const int rect_size[2] = {max_ii(256, (int)size_x * 2), max_ii(256, (int)size_y * 2)};
ImBuf *ibuf = IMB_allocImBuf((uint)rect_size[0], (uint)rect_size[1], 32, IB_rect);
struct UserRasterInfo data;
data.rect_size[0] = rect_size[0];
data.rect_size[1] = rect_size[1];
data.rect = ibuf->rect;
float scale[2];
const bool use_scale = (rect_size[0] != 256) || (rect_size[1] != 256);
if (use_scale) {
scale[0] = ((float)rect_size[0] / 256.0f);
scale[1] = ((float)rect_size[1] / 256.0f);
}
for (int t = 0; t < coords_len; t += 1, pos += 3, col += 3) {
if (use_scale) {
ARRAY_SET_ITEMS(data.pt[0], (int)(pos[0][0] * scale[0]), (int)(pos[0][1] * scale[1]));
ARRAY_SET_ITEMS(data.pt[1], (int)(pos[1][0] * scale[0]), (int)(pos[1][1] * scale[1]));
ARRAY_SET_ITEMS(data.pt[2], (int)(pos[2][0] * scale[0]), (int)(pos[2][1] * scale[1]));
}
else {
ARRAY_SET_ITEMS(data.pt[0], UNPACK2(pos[0]));
ARRAY_SET_ITEMS(data.pt[1], UNPACK2(pos[1]));
ARRAY_SET_ITEMS(data.pt[2], UNPACK2(pos[2]));
}
data.color = col;
if ((col[0] == col[1]) && (col[0] == col[2])) {
BLI_bitmap_draw_2d_tri_v2i(UNPACK3(data.pt), tri_fill_flat, &data);
}
else {
ARRAY_SET_ITEMS(data.smooth.pt_fl[0], UNPACK2_EX((float), data.pt[0], ));
ARRAY_SET_ITEMS(data.smooth.pt_fl[1], UNPACK2_EX((float), data.pt[1], ));
ARRAY_SET_ITEMS(data.smooth.pt_fl[2], UNPACK2_EX((float), data.pt[2], ));
ARRAY_SET_ITEMS(data.smooth.color_u[0], UNPACK4_EX((uint), ((uchar *)(col + 0)), ));
ARRAY_SET_ITEMS(data.smooth.color_u[1], UNPACK4_EX((uint), ((uchar *)(col + 1)), ));
ARRAY_SET_ITEMS(data.smooth.color_u[2], UNPACK4_EX((uint), ((uchar *)(col + 2)), ));
BLI_bitmap_draw_2d_tri_v2i(UNPACK3(data.pt), tri_fill_smooth, &data);
}
}
IMB_scaleImBuf(ibuf, size_x, size_y);
return ibuf;
}
void BKE_icon_geom_invert_lightness(struct Icon_Geom *geom)
{
const int length = 3 * geom->coords_len;
for (int i = 0; i < length; i++) {
float rgb[3], hsl[3];
rgb_uchar_to_float(rgb, geom->colors[i]);
rgb_to_hsl_v(rgb, hsl);
hsl_to_rgb(hsl[0], hsl[1], 1.0f - hsl[2], &rgb[0], &rgb[1], &rgb[2]);
rgb_float_to_uchar(geom->colors[i], rgb);
}
}
|
