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comparison: gfx/skia/trunk/src/opts/SkMorphology_opts_SSE2.cpp
gfx/skia/trunk/src/opts/SkMorphology_opts_SSE2.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:be8a8aee9111 |
|---|---|
| 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 */ | |
| 7 | |
| 8 | |
| 9 #include "SkColorPriv.h" | |
| 10 #include "SkMorphology_opts_SSE2.h" | |
| 11 | |
| 12 #include <emmintrin.h> | |
| 13 | |
| 14 /* SSE2 version of dilateX, dilateY, erodeX, erodeY. | |
| 15 * portable versions are in src/effects/SkMorphologyImageFilter.cpp. | |
| 16 */ | |
| 17 | |
| 18 enum MorphType { | |
| 19 kDilate, kErode | |
| 20 }; | |
| 21 | |
| 22 enum MorphDirection { | |
| 23 kX, kY | |
| 24 }; | |
| 25 | |
| 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 } | |
| 56 | |
| 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 } | |
| 62 | |
| 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 } | |
| 68 | |
| 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 } | |
| 74 | |
| 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 } |
