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gfx/skia/trunk/src/opts/SkMorphology_opts_SSE2.cpp@6474c204b198 (annotated)

gfx/skia/trunk/src/opts/SkMorphology_opts_SSE2.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/*
michael@0	2	* Copyright 2013 The Android Open Source Project
michael@0	3	*
michael@0	4	* Use of this source code is governed by a BSD-style license that can be
michael@0	5	* found in the LICENSE file.
michael@0	6	*/
michael@0	7
michael@0	8
michael@0	9	#include "SkColorPriv.h"
michael@0	10	#include "SkMorphology_opts_SSE2.h"
michael@0	11
michael@0	12	#include <emmintrin.h>
michael@0	13
michael@0	14	/* SSE2 version of dilateX, dilateY, erodeX, erodeY.
michael@0	15	* portable versions are in src/effects/SkMorphologyImageFilter.cpp.
michael@0	16	*/
michael@0	17
michael@0	18	enum MorphType {
michael@0	19	kDilate, kErode
michael@0	20	};
michael@0	21
michael@0	22	enum MorphDirection {
michael@0	23	kX, kY
michael@0	24	};
michael@0	25
michael@0	26	template<MorphType type, MorphDirection direction>
michael@0	27	static void SkMorph_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
michael@0	28	int width, int height, int srcStride, int dstStride)
michael@0	29	{
michael@0	30	const int srcStrideX = direction == kX ? 1 : srcStride;
michael@0	31	const int dstStrideX = direction == kX ? 1 : dstStride;
michael@0	32	const int srcStrideY = direction == kX ? srcStride : 1;
michael@0	33	const int dstStrideY = direction == kX ? dstStride : 1;
michael@0	34	radius = SkMin32(radius, width - 1);
michael@0	35	const SkPMColor* upperSrc = src + radius * srcStrideX;
michael@0	36	for (int x = 0; x < width; ++x) {
michael@0	37	const SkPMColor* lp = src;
michael@0	38	const SkPMColor* up = upperSrc;
michael@0	39	SkPMColor* dptr = dst;
michael@0	40	for (int y = 0; y < height; ++y) {
michael@0	41	__m128i max = type == kDilate ? _mm_setzero_si128() : _mm_set1_epi32(0xFFFFFFFF);
michael@0	42	for (const SkPMColor* p = lp; p <= up; p += srcStrideX) {
michael@0	43	__m128i src_pixel = _mm_cvtsi32_si128(*p);
michael@0	44	max = type == kDilate ? _mm_max_epu8(src_pixel, max) : _mm_min_epu8(src_pixel, max);
michael@0	45	}
michael@0	46	*dptr = _mm_cvtsi128_si32(max);
michael@0	47	dptr += dstStrideY;
michael@0	48	lp += srcStrideY;
michael@0	49	up += srcStrideY;
michael@0	50	}
michael@0	51	if (x >= radius) src += srcStrideX;
michael@0	52	if (x + radius < width - 1) upperSrc += srcStrideX;
michael@0	53	dst += dstStrideX;
michael@0	54	}
michael@0	55	}
michael@0	56
michael@0	57	void SkDilateX_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
michael@0	58	int width, int height, int srcStride, int dstStride)
michael@0	59	{
michael@0	60	SkMorph_SSE2<kDilate, kX>(src, dst, radius, width, height, srcStride, dstStride);
michael@0	61	}
michael@0	62
michael@0	63	void SkErodeX_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
michael@0	64	int width, int height, int srcStride, int dstStride)
michael@0	65	{
michael@0	66	SkMorph_SSE2<kErode, kX>(src, dst, radius, width, height, srcStride, dstStride);
michael@0	67	}
michael@0	68
michael@0	69	void SkDilateY_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
michael@0	70	int width, int height, int srcStride, int dstStride)
michael@0	71	{
michael@0	72	SkMorph_SSE2<kDilate, kY>(src, dst, radius, width, height, srcStride, dstStride);
michael@0	73	}
michael@0	74
michael@0	75	void SkErodeY_SSE2(const SkPMColor* src, SkPMColor* dst, int radius,
michael@0	76	int width, int height, int srcStride, int dstStride)
michael@0	77	{
michael@0	78	SkMorph_SSE2<kErode, kY>(src, dst, radius, width, height, srcStride, dstStride);
michael@0	79	}