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
|
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkUtils_opts_DEFINED
#define SkUtils_opts_DEFINED
#include <stdint.h>
#include "src/base/SkVx.h"
namespace SK_OPTS_NS {
template <typename T>
static void memsetT(T buffer[], T value, int count) {
#if defined(SK_CPU_SSE_LEVEL) && SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_AVX
static constexpr int N = 32 / sizeof(T);
#else
static constexpr int N = 16 / sizeof(T);
#endif
static_assert(N > 0, "T is too big for memsetT");
// Create an N-wide version of value
skvx::Vec<N,T> wideValue(value);
while (count >= N) {
// N at a time, copy the values into the destination buffer
wideValue.store(buffer);
buffer += N;
count -= N;
}
// If count was not an even multiple of N, take care of the last few.
while (count --> 0) {
*buffer++ = value;
}
}
/*not static*/ inline void memset16(uint16_t buffer[], uint16_t value, int count) {
memsetT(buffer, value, count);
}
/*not static*/ inline void memset32(uint32_t buffer[], uint32_t value, int count) {
memsetT(buffer, value, count);
}
/*not static*/ inline void memset64(uint64_t buffer[], uint64_t value, int count) {
memsetT(buffer, value, count);
}
template <typename T>
static void rect_memsetT(T buffer[], T value, int count, size_t rowBytes, int height) {
while (height --> 0) {
memsetT(buffer, value, count);
buffer = (T*)((char*)buffer + rowBytes);
}
}
/*not static*/ inline void rect_memset16(uint16_t buffer[], uint16_t value, int count,
size_t rowBytes, int height) {
rect_memsetT(buffer, value, count, rowBytes, height);
}
/*not static*/ inline void rect_memset32(uint32_t buffer[], uint32_t value, int count,
size_t rowBytes, int height) {
rect_memsetT(buffer, value, count, rowBytes, height);
}
/*not static*/ inline void rect_memset64(uint64_t buffer[], uint64_t value, int count,
size_t rowBytes, int height) {
rect_memsetT(buffer, value, count, rowBytes, height);
}
} // namespace SK_OPTS_NS
#endif//SkUtils_opts_DEFINED
|
