skia2/src/opts/SkNx_sse.h

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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkNx_sse_DEFINED
#define SkNx_sse_DEFINED
// This file may assume <= SSE2, but must check SK_CPU_SSE_LEVEL for anything more recent.
Revert of Refactor to put SkXfermode_opts inside SK_OPTS_NS. (patchset #1 id:1 of https://codereview.chromium.org/1286093004/ ) Reason for revert: Maybe causing test / gold problems? Original issue's description: > Refactor to put SkXfermode_opts inside SK_OPTS_NS. > > Without this refactor I was getting warnings previously about having code > inside namespace SK_OPTS_NS (e.g. namespace sse2, namespace neon) referring to > code inside an anonymous namespace (Sk4px, SkPMFloat, Sk4f, etc) [1]. > > That low-level code was in an anonymous namespace to allow multiple independent > copies of its methods to be instantiated without the linker getting confused / > offended about violating the One Definition Rule. This was only happening in > Debug mode where the methods were not being inlined. > > To fix this all, I've force-inlined the methods of the low-level code and > removed the anonymous namespace. > > BUG=skia:4117 > > > [1] Here is what those errors looked like: > > In file included from ../../../../src/core/SkOpts.cpp:18:0: > ../../../../src/opts/SkXfermode_opts.h:193:7: error: 'portable::Sk4pxXfermode' has a field 'portable::Sk4pxXfermode::fProc4' whose type uses the anonymous namespace [-Werror] > class Sk4pxXfermode : public SkProcCoeffXfermode { > ^ > ../../../../src/opts/SkXfermode_opts.h:193:7: error: 'portable::Sk4pxXfermode' has a field 'portable::Sk4pxXfermode::fAAProc4' whose type uses the anonymous namespace [-Werror] > ../../../../src/opts/SkXfermode_opts.h:235:7: error: 'portable::SkPMFloatXfermode' has a field 'portable::SkPMFloatXfermode::fProcF' whose type uses the anonymous namespace [-Werror] > class SkPMFloatXfermode : public SkProcCoeffXfermode { > ^ > cc1plus: all warnings being treated as errors > > Committed: https://skia.googlesource.com/skia/+/b07bee3121680b53b98b780ac08d14d374dd4c6f TBR=djsollen@google.com,mtklein@chromium.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia:4117 Review URL: https://codereview.chromium.org/1284333002
2015-08-12 18:56:43 +00:00
namespace { // See SkNx.h
template <>
class SkNx<2, float> {
public:
SkNx(const __m128& vec) : fVec(vec) {}
SkNx() {}
SkNx(float val) : fVec(_mm_set1_ps(val)) {}
static SkNx Load(const float vals[2]) {
return _mm_castsi128_ps(_mm_loadl_epi64((const __m128i*)vals));
}
SkNx(float a, float b) : fVec(_mm_setr_ps(a,b,0,0)) {}
void store(float vals[2]) const { _mm_storel_pi((__m64*)vals, fVec); }
SkNx operator + (const SkNx& o) const { return _mm_add_ps(fVec, o.fVec); }
SkNx operator - (const SkNx& o) const { return _mm_sub_ps(fVec, o.fVec); }
SkNx operator * (const SkNx& o) const { return _mm_mul_ps(fVec, o.fVec); }
SkNx operator / (const SkNx& o) const { return _mm_div_ps(fVec, o.fVec); }
SkNx operator == (const SkNx& o) const { return _mm_cmpeq_ps (fVec, o.fVec); }
SkNx operator != (const SkNx& o) const { return _mm_cmpneq_ps(fVec, o.fVec); }
SkNx operator < (const SkNx& o) const { return _mm_cmplt_ps (fVec, o.fVec); }
SkNx operator > (const SkNx& o) const { return _mm_cmpgt_ps (fVec, o.fVec); }
SkNx operator <= (const SkNx& o) const { return _mm_cmple_ps (fVec, o.fVec); }
SkNx operator >= (const SkNx& o) const { return _mm_cmpge_ps (fVec, o.fVec); }
static SkNx Min(const SkNx& l, const SkNx& r) { return _mm_min_ps(l.fVec, r.fVec); }
static SkNx Max(const SkNx& l, const SkNx& r) { return _mm_max_ps(l.fVec, r.fVec); }
SkNx sqrt() const { return _mm_sqrt_ps (fVec); }
SkNx rsqrt0() const { return _mm_rsqrt_ps(fVec); }
SkNx rsqrt1() const { return this->rsqrt0(); }
SkNx rsqrt2() const { return this->rsqrt1(); }
SkNx invert() const { return SkNx(1) / *this; }
SkNx approxInvert() const { return _mm_rcp_ps(fVec); }
template <int k> float kth() const {
SkASSERT(0 <= k && k < 2);
union { __m128 v; float fs[4]; } pun = {fVec};
return pun.fs[k&1];
}
bool allTrue() const { return 0xff == (_mm_movemask_epi8(_mm_castps_si128(fVec)) & 0xff); }
bool anyTrue() const { return 0x00 != (_mm_movemask_epi8(_mm_castps_si128(fVec)) & 0xff); }
__m128 fVec;
};
template <>
class SkNx<4, int> {
public:
SkNx(const __m128i& vec) : fVec(vec) {}
SkNx() {}
SkNx(int val) : fVec(_mm_set1_epi32(val)) {}
static SkNx Load(const int vals[4]) { return _mm_loadu_si128((const __m128i*)vals); }
SkNx(int a, int b, int c, int d) : fVec(_mm_setr_epi32(a,b,c,d)) {}
void store(int vals[4]) const { _mm_storeu_si128((__m128i*)vals, fVec); }
SkNx operator + (const SkNx& o) const { return _mm_add_epi32(fVec, o.fVec); }
SkNx operator - (const SkNx& o) const { return _mm_sub_epi32(fVec, o.fVec); }
SkNx operator * (const SkNx& o) const {
__m128i mul20 = _mm_mul_epu32(fVec, o.fVec),
mul31 = _mm_mul_epu32(_mm_srli_si128(fVec, 4), _mm_srli_si128(o.fVec, 4));
return _mm_unpacklo_epi32(_mm_shuffle_epi32(mul20, _MM_SHUFFLE(0,0,2,0)),
_mm_shuffle_epi32(mul31, _MM_SHUFFLE(0,0,2,0)));
}
SkNx operator << (int bits) const { return _mm_slli_epi32(fVec, bits); }
SkNx operator >> (int bits) const { return _mm_srai_epi32(fVec, bits); }
template <int k> int kth() const {
SkASSERT(0 <= k && k < 4);
switch (k) {
case 0: return _mm_cvtsi128_si32(fVec);
case 1: return _mm_cvtsi128_si32(_mm_srli_si128(fVec, 4));
case 2: return _mm_cvtsi128_si32(_mm_srli_si128(fVec, 8));
case 3: return _mm_cvtsi128_si32(_mm_srli_si128(fVec, 12));
default: SkASSERT(false); return 0;
}
}
__m128i fVec;
};
template <>
class SkNx<4, float> {
public:
SkNx(const __m128& vec) : fVec(vec) {}
SkNx() {}
SkNx(float val) : fVec( _mm_set1_ps(val) ) {}
static SkNx Load(const float vals[4]) { return _mm_loadu_ps(vals); }
static SkNx FromBytes(const uint8_t bytes[4]) {
__m128i fix8 = _mm_cvtsi32_si128(*(const int*)bytes);
#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
const char _ = ~0; // Zero these bytes.
__m128i fix8_32 = _mm_shuffle_epi8(fix8, _mm_setr_epi8(0,_,_,_, 1,_,_,_, 2,_,_,_, 3,_,_,_));
#else
__m128i fix8_16 = _mm_unpacklo_epi8 (fix8, _mm_setzero_si128()),
fix8_32 = _mm_unpacklo_epi16(fix8_16, _mm_setzero_si128());
#endif
return SkNx(_mm_cvtepi32_ps(fix8_32));
// TODO: use _mm_cvtepu8_epi32 w/SSE4.1?
}
SkNx(float a, float b, float c, float d) : fVec(_mm_setr_ps(a,b,c,d)) {}
void store(float vals[4]) const { _mm_storeu_ps(vals, fVec); }
void toBytes(uint8_t bytes[4]) const {
__m128i fix8_32 = _mm_cvttps_epi32(fVec),
fix8_16 = _mm_packus_epi16(fix8_32, fix8_32),
fix8 = _mm_packus_epi16(fix8_16, fix8_16);
*(int*)bytes = _mm_cvtsi128_si32(fix8);
}
SkNx operator + (const SkNx& o) const { return _mm_add_ps(fVec, o.fVec); }
SkNx operator - (const SkNx& o) const { return _mm_sub_ps(fVec, o.fVec); }
SkNx operator * (const SkNx& o) const { return _mm_mul_ps(fVec, o.fVec); }
SkNx operator / (const SkNx& o) const { return _mm_div_ps(fVec, o.fVec); }
SkNx operator == (const SkNx& o) const { return _mm_cmpeq_ps (fVec, o.fVec); }
SkNx operator != (const SkNx& o) const { return _mm_cmpneq_ps(fVec, o.fVec); }
SkNx operator < (const SkNx& o) const { return _mm_cmplt_ps (fVec, o.fVec); }
SkNx operator > (const SkNx& o) const { return _mm_cmpgt_ps (fVec, o.fVec); }
SkNx operator <= (const SkNx& o) const { return _mm_cmple_ps (fVec, o.fVec); }
SkNx operator >= (const SkNx& o) const { return _mm_cmpge_ps (fVec, o.fVec); }
static SkNx Min(const SkNx& l, const SkNx& r) { return _mm_min_ps(l.fVec, r.fVec); }
static SkNx Max(const SkNx& l, const SkNx& r) { return _mm_max_ps(l.fVec, r.fVec); }
SkNx sqrt() const { return _mm_sqrt_ps (fVec); }
SkNx rsqrt0() const { return _mm_rsqrt_ps(fVec); }
SkNx rsqrt1() const { return this->rsqrt0(); }
SkNx rsqrt2() const { return this->rsqrt1(); }
SkNx invert() const { return SkNx(1) / *this; }
SkNx approxInvert() const { return _mm_rcp_ps(fVec); }
template <int k> float kth() const {
SkASSERT(0 <= k && k < 4);
union { __m128 v; float fs[4]; } pun = {fVec};
return pun.fs[k&3];
}
bool allTrue() const { return 0xffff == _mm_movemask_epi8(_mm_castps_si128(fVec)); }
bool anyTrue() const { return 0x0000 != _mm_movemask_epi8(_mm_castps_si128(fVec)); }
SkNx thenElse(const SkNx& t, const SkNx& e) const {
return _mm_or_ps(_mm_and_ps (fVec, t.fVec),
_mm_andnot_ps(fVec, e.fVec));
}
__m128 fVec;
};
template <>
class SkNx<4, uint16_t> {
public:
SkNx(const __m128i& vec) : fVec(vec) {}
SkNx() {}
SkNx(uint16_t val) : fVec(_mm_set1_epi16(val)) {}
static SkNx Load(const uint16_t vals[4]) { return _mm_loadl_epi64((const __m128i*)vals); }
SkNx(uint16_t a, uint16_t b, uint16_t c, uint16_t d) : fVec(_mm_setr_epi16(a,b,c,d,0,0,0,0)) {}
void store(uint16_t vals[4]) const { _mm_storel_epi64((__m128i*)vals, fVec); }
SkNx operator + (const SkNx& o) const { return _mm_add_epi16(fVec, o.fVec); }
SkNx operator - (const SkNx& o) const { return _mm_sub_epi16(fVec, o.fVec); }
SkNx operator * (const SkNx& o) const { return _mm_mullo_epi16(fVec, o.fVec); }
SkNx operator << (int bits) const { return _mm_slli_epi16(fVec, bits); }
SkNx operator >> (int bits) const { return _mm_srli_epi16(fVec, bits); }
template <int k> uint16_t kth() const {
SkASSERT(0 <= k && k < 4);
return _mm_extract_epi16(fVec, k);
}
__m128i fVec;
};
template <>
class SkNx<8, uint16_t> {
public:
SkNx(const __m128i& vec) : fVec(vec) {}
SkNx() {}
SkNx(uint16_t val) : fVec(_mm_set1_epi16(val)) {}
static SkNx Load(const uint16_t vals[8]) { return _mm_loadu_si128((const __m128i*)vals); }
SkNx(uint16_t a, uint16_t b, uint16_t c, uint16_t d,
uint16_t e, uint16_t f, uint16_t g, uint16_t h) : fVec(_mm_setr_epi16(a,b,c,d,e,f,g,h)) {}
void store(uint16_t vals[8]) const { _mm_storeu_si128((__m128i*)vals, fVec); }
SkNx operator + (const SkNx& o) const { return _mm_add_epi16(fVec, o.fVec); }
SkNx operator - (const SkNx& o) const { return _mm_sub_epi16(fVec, o.fVec); }
SkNx operator * (const SkNx& o) const { return _mm_mullo_epi16(fVec, o.fVec); }
SkNx operator << (int bits) const { return _mm_slli_epi16(fVec, bits); }
SkNx operator >> (int bits) const { return _mm_srli_epi16(fVec, bits); }
static SkNx Min(const SkNx& a, const SkNx& b) {
// No unsigned _mm_min_epu16, so we'll shift into a space where we can use the
// signed version, _mm_min_epi16, then shift back.
const uint16_t top = 0x8000; // Keep this separate from _mm_set1_epi16 or MSVC will whine.
const __m128i top_8x = _mm_set1_epi16(top);
return _mm_add_epi8(top_8x, _mm_min_epi16(_mm_sub_epi8(a.fVec, top_8x),
_mm_sub_epi8(b.fVec, top_8x)));
}
SkNx thenElse(const SkNx& t, const SkNx& e) const {
return _mm_or_si128(_mm_and_si128 (fVec, t.fVec),
_mm_andnot_si128(fVec, e.fVec));
}
template <int k> uint16_t kth() const {
SkASSERT(0 <= k && k < 8);
return _mm_extract_epi16(fVec, k);
}
__m128i fVec;
};
template <>
class SkNx<16, uint8_t> {
public:
SkNx(const __m128i& vec) : fVec(vec) {}
SkNx() {}
SkNx(uint8_t val) : fVec(_mm_set1_epi8(val)) {}
static SkNx Load(const uint8_t vals[16]) { return _mm_loadu_si128((const __m128i*)vals); }
SkNx(uint8_t a, uint8_t b, uint8_t c, uint8_t d,
uint8_t e, uint8_t f, uint8_t g, uint8_t h,
uint8_t i, uint8_t j, uint8_t k, uint8_t l,
uint8_t m, uint8_t n, uint8_t o, uint8_t p)
: fVec(_mm_setr_epi8(a,b,c,d, e,f,g,h, i,j,k,l, m,n,o,p)) {}
void store(uint8_t vals[16]) const { _mm_storeu_si128((__m128i*)vals, fVec); }
SkNx saturatedAdd(const SkNx& o) const { return _mm_adds_epu8(fVec, o.fVec); }
SkNx operator + (const SkNx& o) const { return _mm_add_epi8(fVec, o.fVec); }
SkNx operator - (const SkNx& o) const { return _mm_sub_epi8(fVec, o.fVec); }
static SkNx Min(const SkNx& a, const SkNx& b) { return _mm_min_epu8(a.fVec, b.fVec); }
SkNx operator < (const SkNx& o) const {
// There's no unsigned _mm_cmplt_epu8, so we flip the sign bits then use a signed compare.
auto flip = _mm_set1_epi8(char(0x80));
return _mm_cmplt_epi8(_mm_xor_si128(flip, fVec), _mm_xor_si128(flip, o.fVec));
}
template <int k> uint8_t kth() const {
SkASSERT(0 <= k && k < 16);
// SSE4.1 would just `return _mm_extract_epi8(fVec, k)`. We have to read 16-bits instead.
int pair = _mm_extract_epi16(fVec, k/2);
return k % 2 == 0 ? pair : (pair >> 8);
}
SkNx thenElse(const SkNx& t, const SkNx& e) const {
return _mm_or_si128(_mm_and_si128 (fVec, t.fVec),
_mm_andnot_si128(fVec, e.fVec));
}
__m128i fVec;
};
template<>
inline SkNx<4, int> SkNx_cast<int, float, 4>(const SkNx<4, float>& src) {
return _mm_cvttps_epi32(src.fVec);
}
Revert of Refactor to put SkXfermode_opts inside SK_OPTS_NS. (patchset #1 id:1 of https://codereview.chromium.org/1286093004/ ) Reason for revert: Maybe causing test / gold problems? Original issue's description: > Refactor to put SkXfermode_opts inside SK_OPTS_NS. > > Without this refactor I was getting warnings previously about having code > inside namespace SK_OPTS_NS (e.g. namespace sse2, namespace neon) referring to > code inside an anonymous namespace (Sk4px, SkPMFloat, Sk4f, etc) [1]. > > That low-level code was in an anonymous namespace to allow multiple independent > copies of its methods to be instantiated without the linker getting confused / > offended about violating the One Definition Rule. This was only happening in > Debug mode where the methods were not being inlined. > > To fix this all, I've force-inlined the methods of the low-level code and > removed the anonymous namespace. > > BUG=skia:4117 > > > [1] Here is what those errors looked like: > > In file included from ../../../../src/core/SkOpts.cpp:18:0: > ../../../../src/opts/SkXfermode_opts.h:193:7: error: 'portable::Sk4pxXfermode' has a field 'portable::Sk4pxXfermode::fProc4' whose type uses the anonymous namespace [-Werror] > class Sk4pxXfermode : public SkProcCoeffXfermode { > ^ > ../../../../src/opts/SkXfermode_opts.h:193:7: error: 'portable::Sk4pxXfermode' has a field 'portable::Sk4pxXfermode::fAAProc4' whose type uses the anonymous namespace [-Werror] > ../../../../src/opts/SkXfermode_opts.h:235:7: error: 'portable::SkPMFloatXfermode' has a field 'portable::SkPMFloatXfermode::fProcF' whose type uses the anonymous namespace [-Werror] > class SkPMFloatXfermode : public SkProcCoeffXfermode { > ^ > cc1plus: all warnings being treated as errors > > Committed: https://skia.googlesource.com/skia/+/b07bee3121680b53b98b780ac08d14d374dd4c6f TBR=djsollen@google.com,mtklein@chromium.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia:4117 Review URL: https://codereview.chromium.org/1284333002
2015-08-12 18:56:43 +00:00
} // namespace
#endif//SkNx_sse_DEFINED