diff options
author | 2014-04-25 08:34:41 +0000 | |
---|---|---|
committer | 2014-04-25 08:34:41 +0000 | |
commit | 6419a5edb8af999623e018b09c3dd88ec371d2e6 (patch) | |
tree | 09736de04e1a93e154b1ba03e0c615abf92d7c31 /src/opts/SkXfermode_opts_SSE2.cpp | |
parent | 05764d2f77892217ddead7f62586c1a3f5c02d36 (diff) |
Xfermode: SSE2 implementation of softlight_modeproc
With SSE2 optimization, performance of Xfermode_SoftLight will improve
about 30% on desktop i7-3770. Here are the data:
before:
Xfermode_SoftLight 8888: cmsecs = 379.44 565: cmsecs = 387.74
after:
Xfermode_SoftLight 8888: cmsecs = 272.29 565: cmsecs = 284.31
BUG=skia:
R=mtklein@google.com
Author: qiankun.miao@intel.com
Review URL: https://codereview.chromium.org/236363012
git-svn-id: http://skia.googlecode.com/svn/trunk@14376 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'src/opts/SkXfermode_opts_SSE2.cpp')
-rw-r--r-- | src/opts/SkXfermode_opts_SSE2.cpp | 85 |
1 files changed, 84 insertions, 1 deletions
diff --git a/src/opts/SkXfermode_opts_SSE2.cpp b/src/opts/SkXfermode_opts_SSE2.cpp index 13586ed867..7005d9fe58 100644 --- a/src/opts/SkXfermode_opts_SSE2.cpp +++ b/src/opts/SkXfermode_opts_SSE2.cpp @@ -1,6 +1,7 @@ #include "SkColorPriv.h" #include "SkColor_opts_SSE2.h" #include "SkMathPriv.h" +#include "SkMath_opts_SSE2.h" #include "SkXfermode.h" #include "SkXfermode_opts_SSE2.h" #include "SkXfermode_proccoeff.h" @@ -324,6 +325,87 @@ static __m128i hardlight_modeproc_SSE2(const __m128i& src, const __m128i& dst) { return SkPackARGB32_SSE2(a, r, g, b); } +static __m128i sqrt_unit_byte_SSE2(const __m128i& n) { + return SkSqrtBits_SSE2(n, 15+4); +} + +static inline __m128i softlight_byte_SSE2(const __m128i& sc, const __m128i& dc, + const __m128i& sa, const __m128i& da) { + __m128i tmp1, tmp2, tmp3; + + // int m = da ? dc * 256 / da : 0; + __m128i cmp = _mm_cmpeq_epi32(da, _mm_setzero_si128()); + __m128i m = _mm_slli_epi32(dc, 8); + __m128 x = _mm_cvtepi32_ps(m); + __m128 y = _mm_cvtepi32_ps(da); + m = _mm_cvttps_epi32(_mm_div_ps(x, y)); + m = _mm_andnot_si128(cmp, m); + + // if (2 * sc <= sa) + tmp1 = _mm_slli_epi32(sc, 1); // 2 * sc + __m128i cmp1 = _mm_cmpgt_epi32(tmp1, sa); + tmp1 = _mm_sub_epi32(tmp1, sa); // 2 * sc - sa + tmp2 = _mm_sub_epi32(_mm_set1_epi32(256), m); // 256 - m + tmp1 = Multiply32_SSE2(tmp1, tmp2); + tmp1 = _mm_srai_epi32(tmp1, 8); + tmp1 = _mm_add_epi32(sa, tmp1); + tmp1 = Multiply32_SSE2(dc, tmp1); + __m128i rc1 = _mm_andnot_si128(cmp1, tmp1); + + // else if (4 * dc <= da) + tmp2 = _mm_slli_epi32(dc, 2); // dc * 4 + __m128i cmp2 = _mm_cmpgt_epi32(tmp2, da); + __m128i i = _mm_slli_epi32(m, 2); // 4 * m + __m128i j = _mm_add_epi32(i, _mm_set1_epi32(256)); // 4 * m + 256 + __m128i k = Multiply32_SSE2(i, j); // 4 * m * (4 * m + 256) + __m128i t = _mm_sub_epi32(m, _mm_set1_epi32(256)); // m - 256 + i = Multiply32_SSE2(k, t); // 4 * m * (4 * m + 256) * (m - 256) + i = _mm_srai_epi32(i, 16); // >> 16 + j = Multiply32_SSE2(_mm_set1_epi32(7), m); // 7 * m + tmp2 = _mm_add_epi32(i, j); + i = Multiply32_SSE2(dc, sa); // dc * sa + j = _mm_slli_epi32(sc, 1); // 2 * sc + j = _mm_sub_epi32(j, sa); // 2 * sc - sa + j = Multiply32_SSE2(da, j); // da * (2 * sc - sa) + tmp2 = Multiply32_SSE2(j, tmp2); // * tmp + tmp2 = _mm_srai_epi32(tmp2, 8); // >> 8 + tmp2 = _mm_add_epi32(i, tmp2); + cmp = _mm_andnot_si128(cmp2, cmp1); + __m128i rc2 = _mm_and_si128(cmp, tmp2); + __m128i rc = _mm_or_si128(rc1, rc2); + + // else + tmp3 = sqrt_unit_byte_SSE2(m); + tmp3 = _mm_sub_epi32(tmp3, m); + tmp3 = Multiply32_SSE2(j, tmp3); // j = da * (2 * sc - sa) + tmp3 = _mm_srai_epi32(tmp3, 8); + tmp3 = _mm_add_epi32(i, tmp3); // i = dc * sa + cmp = _mm_and_si128(cmp1, cmp2); + __m128i rc3 = _mm_and_si128(cmp, tmp3); + rc = _mm_or_si128(rc, rc3); + + tmp1 = _mm_sub_epi32(_mm_set1_epi32(255), da); // 255 - da + tmp1 = _mm_mullo_epi16(sc, tmp1); + tmp2 = _mm_sub_epi32(_mm_set1_epi32(255), sa); // 255 - sa + tmp2 = _mm_mullo_epi16(dc, tmp2); + rc = _mm_add_epi32(rc, tmp1); + rc = _mm_add_epi32(rc, tmp2); + return clamp_div255round_SSE2(rc); +} + +static __m128i softlight_modeproc_SSE2(const __m128i& src, const __m128i& dst) { + __m128i sa = SkGetPackedA32_SSE2(src); + __m128i da = SkGetPackedA32_SSE2(dst); + + __m128i a = srcover_byte_SSE2(sa, da); + __m128i r = softlight_byte_SSE2(SkGetPackedR32_SSE2(src), + SkGetPackedR32_SSE2(dst), sa, da); + __m128i g = softlight_byte_SSE2(SkGetPackedG32_SSE2(src), + SkGetPackedG32_SSE2(dst), sa, da); + __m128i b = softlight_byte_SSE2(SkGetPackedB32_SSE2(src), + SkGetPackedB32_SSE2(dst), sa, da); + return SkPackARGB32_SSE2(a, r, g, b); +} static inline __m128i difference_byte_SSE2(const __m128i& sc, const __m128i& dc, const __m128i& sa, const __m128i& da) { @@ -353,6 +435,7 @@ static __m128i difference_modeproc_SSE2(const __m128i& src, SkGetPackedB32_SSE2(dst), sa, da); return SkPackARGB32_SSE2(a, r, g, b); } + static inline __m128i exclusion_byte_SSE2(const __m128i& sc, const __m128i& dc, const __m128i&, __m128i&) { __m128i tmp1 = _mm_mullo_epi16(_mm_set1_epi32(255), sc); // 255 * sc @@ -540,7 +623,7 @@ SkXfermodeProcSIMD gSSE2XfermodeProcs[] = { NULL, // kColorDodge_Mode NULL, // kColorBurn_Mode hardlight_modeproc_SSE2, - NULL, // kSoftLight_Mode + softlight_modeproc_SSE2, difference_modeproc_SSE2, exclusion_modeproc_SSE2, multiply_modeproc_SSE2, |