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
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkMorphologyImageFilter_opts_DEFINED
#define SkMorphologyImageFilter_opts_DEFINED
#include "SkColor.h"
namespace SK_OPTS_NS {
enum MorphType { kDilate, kErode };
enum class MorphDirection { kX, kY };
#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2
template<MorphType type, MorphDirection direction>
static void morph(const SkPMColor* src, SkPMColor* dst,
int radius, int width, int height, int srcStride, int dstStride) {
const int srcStrideX = direction == MorphDirection::kX ? 1 : srcStride;
const int dstStrideX = direction == MorphDirection::kX ? 1 : dstStride;
const int srcStrideY = direction == MorphDirection::kX ? srcStride : 1;
const int dstStrideY = direction == MorphDirection::kX ? dstStride : 1;
radius = SkMin32(radius, width - 1);
const SkPMColor* upperSrc = src + radius * srcStrideX;
for (int x = 0; x < width; ++x) {
const SkPMColor* lp = src;
const SkPMColor* up = upperSrc;
SkPMColor* dptr = dst;
for (int y = 0; y < height; ++y) {
__m128i extreme = (type == kDilate) ? _mm_setzero_si128()
: _mm_set1_epi32(0xFFFFFFFF);
for (const SkPMColor* p = lp; p <= up; p += srcStrideX) {
__m128i src_pixel = _mm_cvtsi32_si128(*p);
extreme = (type == kDilate) ? _mm_max_epu8(src_pixel, extreme)
: _mm_min_epu8(src_pixel, extreme);
}
*dptr = _mm_cvtsi128_si32(extreme);
dptr += dstStrideY;
lp += srcStrideY;
up += srcStrideY;
}
if (x >= radius) { src += srcStrideX; }
if (x + radius < width - 1) { upperSrc += srcStrideX; }
dst += dstStrideX;
}
}
#elif defined(SK_ARM_HAS_NEON)
template<MorphType type, MorphDirection direction>
static void morph(const SkPMColor* src, SkPMColor* dst,
int radius, int width, int height, int srcStride, int dstStride) {
const int srcStrideX = direction == MorphDirection::kX ? 1 : srcStride;
const int dstStrideX = direction == MorphDirection::kX ? 1 : dstStride;
const int srcStrideY = direction == MorphDirection::kX ? srcStride : 1;
const int dstStrideY = direction == MorphDirection::kX ? dstStride : 1;
radius = SkMin32(radius, width - 1);
const SkPMColor* upperSrc = src + radius * srcStrideX;
for (int x = 0; x < width; ++x) {
const SkPMColor* lp = src;
const SkPMColor* up = upperSrc;
SkPMColor* dptr = dst;
for (int y = 0; y < height; ++y) {
uint8x8_t extreme = vdup_n_u8(type == kDilate ? 0 : 255);
for (const SkPMColor* p = lp; p <= up; p += srcStrideX) {
uint8x8_t src_pixel = vreinterpret_u8_u32(vdup_n_u32(*p));
extreme = (type == kDilate) ? vmax_u8(src_pixel, extreme)
: vmin_u8(src_pixel, extreme);
}
*dptr = vget_lane_u32(vreinterpret_u32_u8(extreme), 0);
dptr += dstStrideY;
lp += srcStrideY;
up += srcStrideY;
}
if (x >= radius) src += srcStrideX;
if (x + radius < width - 1) upperSrc += srcStrideX;
dst += dstStrideX;
}
}
#else
template<MorphType type, MorphDirection direction>
static void morph(const SkPMColor* src, SkPMColor* dst,
int radius, int width, int height, int srcStride, int dstStride) {
const int srcStrideX = direction == MorphDirection::kX ? 1 : srcStride;
const int dstStrideX = direction == MorphDirection::kX ? 1 : dstStride;
const int srcStrideY = direction == MorphDirection::kX ? srcStride : 1;
const int dstStrideY = direction == MorphDirection::kX ? dstStride : 1;
radius = SkMin32(radius, width - 1);
const SkPMColor* upperSrc = src + radius * srcStrideX;
for (int x = 0; x < width; ++x) {
const SkPMColor* lp = src;
const SkPMColor* up = upperSrc;
SkPMColor* dptr = dst;
for (int y = 0; y < height; ++y) {
// If we're maxing (dilate), start from 0; if minning (erode), start from 255.
const int start = (type == kDilate) ? 0 : 255;
int B = start, G = start, R = start, A = start;
for (const SkPMColor* p = lp; p <= up; p += srcStrideX) {
int b = SkGetPackedB32(*p),
g = SkGetPackedG32(*p),
r = SkGetPackedR32(*p),
a = SkGetPackedA32(*p);
if (type == kDilate) {
B = SkTMax(b, B);
G = SkTMax(g, G);
R = SkTMax(r, R);
A = SkTMax(a, A);
} else {
B = SkTMin(b, B);
G = SkTMin(g, G);
R = SkTMin(r, R);
A = SkTMin(a, A);
}
}
*dptr = SkPackARGB32(A, R, G, B);
dptr += dstStrideY;
lp += srcStrideY;
up += srcStrideY;
}
if (x >= radius) { src += srcStrideX; }
if (x + radius < width - 1) { upperSrc += srcStrideX; }
dst += dstStrideX;
}
}
#endif
static auto dilate_x = &morph<kDilate, MorphDirection::kX>,
dilate_y = &morph<kDilate, MorphDirection::kY>,
erode_x = &morph<kErode, MorphDirection::kX>,
erode_y = &morph<kErode, MorphDirection::kY>;
} // namespace SK_OPTS_NS
#endif//SkMorphologyImageFilter_opts_DEFINED
|
