gfx/skia/trunk/src/opts/SkUtils_opts_SSE2.cpp@129ffea94266
gfx/skia/trunk/src/opts/SkUtils_opts_SSE2.cpp
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
2 /*
3 * Copyright 2009 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
10 #include <emmintrin.h>
11 #include "SkUtils_opts_SSE2.h"
13 void sk_memset16_SSE2(uint16_t *dst, uint16_t value, int count)
14 {
15 SkASSERT(dst != NULL && count >= 0);
17 // dst must be 2-byte aligned.
18 SkASSERT((((size_t) dst) & 0x01) == 0);
20 if (count >= 32) {
21 while (((size_t)dst) & 0x0F) {
22 *dst++ = value;
23 --count;
24 }
25 __m128i *d = reinterpret_cast<__m128i*>(dst);
26 __m128i value_wide = _mm_set1_epi16(value);
27 while (count >= 32) {
28 _mm_store_si128(d , value_wide);
29 _mm_store_si128(d + 1, value_wide);
30 _mm_store_si128(d + 2, value_wide);
31 _mm_store_si128(d + 3, value_wide);
32 d += 4;
33 count -= 32;
34 }
35 dst = reinterpret_cast<uint16_t*>(d);
36 }
37 while (count > 0) {
38 *dst++ = value;
39 --count;
40 }
41 }
43 void sk_memset32_SSE2(uint32_t *dst, uint32_t value, int count)
44 {
45 SkASSERT(dst != NULL && count >= 0);
47 // dst must be 4-byte aligned.
48 SkASSERT((((size_t) dst) & 0x03) == 0);
50 if (count >= 16) {
51 while (((size_t)dst) & 0x0F) {
52 *dst++ = value;
53 --count;
54 }
55 __m128i *d = reinterpret_cast<__m128i*>(dst);
56 __m128i value_wide = _mm_set1_epi32(value);
57 while (count >= 16) {
58 _mm_store_si128(d , value_wide);
59 _mm_store_si128(d + 1, value_wide);
60 _mm_store_si128(d + 2, value_wide);
61 _mm_store_si128(d + 3, value_wide);
62 d += 4;
63 count -= 16;
64 }
65 dst = reinterpret_cast<uint32_t*>(d);
66 }
67 while (count > 0) {
68 *dst++ = value;
69 --count;
70 }
71 }
