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
|
/*
**
** Copyright 2009, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <emmintrin.h>
#include "SkUtils_opts_SSE2.h"
void sk_memset16_SSE2(uint16_t *dst, uint16_t value, int count)
{
SkASSERT(dst != NULL && count >= 0);
// dst must be 2-byte aligned.
SkASSERT((((size_t) dst) & 0x01) == 0);
if (count >= 32) {
while (((size_t)dst) & 0x0F) {
*dst++ = value;
--count;
}
__m128i *d = reinterpret_cast<__m128i*>(dst);
__m128i value_wide = _mm_set1_epi16(value);
while (count >= 32) {
_mm_store_si128(d++, value_wide);
_mm_store_si128(d++, value_wide);
_mm_store_si128(d++, value_wide);
_mm_store_si128(d++, value_wide);
count -= 32;
}
dst = reinterpret_cast<uint16_t*>(d);
}
while (count > 0) {
*dst++ = value;
--count;
}
}
void sk_memset32_SSE2(uint32_t *dst, uint32_t value, int count)
{
SkASSERT(dst != NULL && count >= 0);
// dst must be 4-byte aligned.
SkASSERT((((size_t) dst) & 0x03) == 0);
if (count >= 16) {
while (((size_t)dst) & 0x0F) {
*dst++ = value;
--count;
}
__m128i *d = reinterpret_cast<__m128i*>(dst);
__m128i value_wide = _mm_set1_epi32(value);
while (count >= 16) {
_mm_store_si128(d++, value_wide);
_mm_store_si128(d++, value_wide);
_mm_store_si128(d++, value_wide);
_mm_store_si128(d++, value_wide);
count -= 16;
}
dst = reinterpret_cast<uint32_t*>(d);
}
while (count > 0) {
*dst++ = value;
--count;
}
}
|
