gfx/skia/trunk/src/opts/SkMorphology_opts_SSE2.cpp@129ffea94266
gfx/skia/trunk/src/opts/SkMorphology_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.
1 /*
2 * Copyright 2013 The Android Open Source Project
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
9 #include "SkColorPriv.h"
10 #include "SkMorphology_opts_SSE2.h"
12 #include <emmintrin.h>
14 /* SSE2 version of dilateX, dilateY, erodeX, erodeY.
15 * portable versions are in src/effects/SkMorphologyImageFilter.cpp.
16 */
18 enum MorphType {
19 kDilate, kErode
20 };
22 enum MorphDirection {
23 kX, kY
24 };
26 template<MorphType type, MorphDirection direction>
27 static void SkMorph_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
28 int width, int height, int srcStride, int dstStride)
29 {
30 const int srcStrideX = direction == kX ? 1 : srcStride;
31 const int dstStrideX = direction == kX ? 1 : dstStride;
32 const int srcStrideY = direction == kX ? srcStride : 1;
33 const int dstStrideY = direction == kX ? dstStride : 1;
34 radius = SkMin32(radius, width - 1);
35 const SkPMColor* upperSrc = src + radius * srcStrideX;
36 for (int x = 0; x < width; ++x) {
37 const SkPMColor* lp = src;
38 const SkPMColor* up = upperSrc;
39 SkPMColor* dptr = dst;
40 for (int y = 0; y < height; ++y) {
41 __m128i max = type == kDilate ? _mm_setzero_si128() : _mm_set1_epi32(0xFFFFFFFF);
42 for (const SkPMColor* p = lp; p <= up; p += srcStrideX) {
43 __m128i src_pixel = _mm_cvtsi32_si128(*p);
44 max = type == kDilate ? _mm_max_epu8(src_pixel, max) : _mm_min_epu8(src_pixel, max);
45 }
46 *dptr = _mm_cvtsi128_si32(max);
47 dptr += dstStrideY;
48 lp += srcStrideY;
49 up += srcStrideY;
50 }
51 if (x >= radius) src += srcStrideX;
52 if (x + radius < width - 1) upperSrc += srcStrideX;
53 dst += dstStrideX;
54 }
55 }
57 void SkDilateX_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
58 int width, int height, int srcStride, int dstStride)
59 {
60 SkMorph_SSE2<kDilate, kX>(src, dst, radius, width, height, srcStride, dstStride);
61 }
63 void SkErodeX_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
64 int width, int height, int srcStride, int dstStride)
65 {
66 SkMorph_SSE2<kErode, kX>(src, dst, radius, width, height, srcStride, dstStride);
67 }
69 void SkDilateY_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
70 int width, int height, int srcStride, int dstStride)
71 {
72 SkMorph_SSE2<kDilate, kY>(src, dst, radius, width, height, srcStride, dstStride);
73 }
75 void SkErodeY_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
76 int width, int height, int srcStride, int dstStride)
77 {
78 SkMorph_SSE2<kErode, kY>(src, dst, radius, width, height, srcStride, dstStride);
79 }
