From d92a739d72ae70fc8122dc077b0f751d4b1dd023 Mon Sep 17 00:00:00 2001 From: Mike Reed Date: Tue, 20 Mar 2018 12:42:38 -0400 Subject: detect nonfinite cubic points Bug: oss-fuzz:7031 Cq-Include-Trybots: skia.primary:Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-All-SKNX_NO_SIMD Change-Id: I657c0652dc863256f445a84c084ccc37d287f534 Reviewed-on: https://skia-review.googlesource.com/115222 Reviewed-by: Mike Klein Commit-Queue: Mike Reed --- src/opts/SkNx_sse.h | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) (limited to 'src/opts') diff --git a/src/opts/SkNx_sse.h b/src/opts/SkNx_sse.h index 3b530f0e78..b4ae0cbe2b 100644 --- a/src/opts/SkNx_sse.h +++ b/src/opts/SkNx_sse.h @@ -267,6 +267,53 @@ public: __m128i fVec; }; +template <> +class SkNx<2, uint32_t> { +public: + AI SkNx(const __m128i& vec) : fVec(vec) {} + + AI SkNx() {} + AI SkNx(uint32_t val) : fVec(_mm_set1_epi32(val)) {} + AI static SkNx Load(const void* ptr) { return _mm_loadl_epi64((const __m128i*)ptr); } + AI SkNx(uint32_t a, uint32_t b) : fVec(_mm_setr_epi32(a,b,0,0)) {} + + AI void store(void* ptr) const { _mm_storel_epi64((__m128i*)ptr, fVec); } + + AI SkNx operator + (const SkNx& o) const { return _mm_add_epi32(fVec, o.fVec); } + AI SkNx operator - (const SkNx& o) const { return _mm_sub_epi32(fVec, o.fVec); } + AI SkNx operator * (const SkNx& o) const { return mullo32(fVec, o.fVec); } + + AI SkNx operator & (const SkNx& o) const { return _mm_and_si128(fVec, o.fVec); } + AI SkNx operator | (const SkNx& o) const { return _mm_or_si128(fVec, o.fVec); } + AI SkNx operator ^ (const SkNx& o) const { return _mm_xor_si128(fVec, o.fVec); } + + AI SkNx operator << (int bits) const { return _mm_slli_epi32(fVec, bits); } + AI SkNx operator >> (int bits) const { return _mm_srli_epi32(fVec, bits); } + + AI SkNx operator == (const SkNx& o) const { return _mm_cmpeq_epi32 (fVec, o.fVec); } + AI SkNx operator != (const SkNx& o) const { return (*this == o) ^ 0xffffffff; } + // operator < and > take a little extra fiddling to make work for unsigned ints. + + AI uint32_t operator[](int k) const { + SkASSERT(0 <= k && k < 2); + union { __m128i v; uint32_t us[4]; } pun = {fVec}; + return pun.us[k&1]; + } + + AI SkNx thenElse(const SkNx& t, const SkNx& e) const { +#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE41 + return _mm_blendv_epi8(e.fVec, t.fVec, fVec); +#else + return _mm_or_si128(_mm_and_si128 (fVec, t.fVec), + _mm_andnot_si128(fVec, e.fVec)); +#endif + } + + AI bool allTrue() const { return 0xff == (_mm_movemask_epi8(fVec) & 0xff); } + + __m128i fVec; +}; + template <> class SkNx<4, uint32_t> { public: @@ -291,6 +338,8 @@ public: AI SkNx operator >> (int bits) const { return _mm_srli_epi32(fVec, bits); } AI SkNx operator == (const SkNx& o) const { return _mm_cmpeq_epi32 (fVec, o.fVec); } + AI SkNx operator != (const SkNx& o) const { return (*this == o) ^ 0xffffffff; } + // operator < and > take a little extra fiddling to make work for unsigned ints. AI uint32_t operator[](int k) const { -- cgit v1.2.3