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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_neon_DEFINED
- #define SkNx_neon_DEFINED
- #include <arm_neon.h>
- namespace { // NOLINT(google-build-namespaces)
- // ARMv8 has vrndm(q)_f32 to floor floats. Here we emulate it:
- // - roundtrip through integers via truncation
- // - subtract 1 if that's too big (possible for negative values).
- // This restricts the domain of our inputs to a maximum somehwere around 2^31. Seems plenty big.
- AI static float32x4_t emulate_vrndmq_f32(float32x4_t v) {
- auto roundtrip = vcvtq_f32_s32(vcvtq_s32_f32(v));
- auto too_big = vcgtq_f32(roundtrip, v);
- return vsubq_f32(roundtrip, (float32x4_t)vandq_u32(too_big, (uint32x4_t)vdupq_n_f32(1)));
- }
- AI static float32x2_t emulate_vrndm_f32(float32x2_t v) {
- auto roundtrip = vcvt_f32_s32(vcvt_s32_f32(v));
- auto too_big = vcgt_f32(roundtrip, v);
- return vsub_f32(roundtrip, (float32x2_t)vand_u32(too_big, (uint32x2_t)vdup_n_f32(1)));
- }
- template <>
- class SkNx<2, float> {
- public:
- AI SkNx(float32x2_t vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(float val) : fVec(vdup_n_f32(val)) {}
- AI SkNx(float a, float b) { fVec = (float32x2_t) { a, b }; }
- AI static SkNx Load(const void* ptr) { return vld1_f32((const float*)ptr); }
- AI void store(void* ptr) const { vst1_f32((float*)ptr, fVec); }
- AI static void Load2(const void* ptr, SkNx* x, SkNx* y) {
- float32x2x2_t xy = vld2_f32((const float*) ptr);
- *x = xy.val[0];
- *y = xy.val[1];
- }
- AI static void Store2(void* dst, const SkNx& a, const SkNx& b) {
- float32x2x2_t ab = {{
- a.fVec,
- b.fVec,
- }};
- vst2_f32((float*) dst, ab);
- }
- AI static void Store3(void* dst, const SkNx& a, const SkNx& b, const SkNx& c) {
- float32x2x3_t abc = {{
- a.fVec,
- b.fVec,
- c.fVec,
- }};
- vst3_f32((float*) dst, abc);
- }
- AI static void Store4(void* dst, const SkNx& a, const SkNx& b, const SkNx& c, const SkNx& d) {
- float32x2x4_t abcd = {{
- a.fVec,
- b.fVec,
- c.fVec,
- d.fVec,
- }};
- vst4_f32((float*) dst, abcd);
- }
- AI SkNx invert() const {
- float32x2_t est0 = vrecpe_f32(fVec),
- est1 = vmul_f32(vrecps_f32(est0, fVec), est0);
- return est1;
- }
- AI SkNx operator - () const { return vneg_f32(fVec); }
- AI SkNx operator + (const SkNx& o) const { return vadd_f32(fVec, o.fVec); }
- AI SkNx operator - (const SkNx& o) const { return vsub_f32(fVec, o.fVec); }
- AI SkNx operator * (const SkNx& o) const { return vmul_f32(fVec, o.fVec); }
- AI SkNx operator / (const SkNx& o) const {
- #if defined(SK_CPU_ARM64)
- return vdiv_f32(fVec, o.fVec);
- #else
- float32x2_t est0 = vrecpe_f32(o.fVec),
- est1 = vmul_f32(vrecps_f32(est0, o.fVec), est0),
- est2 = vmul_f32(vrecps_f32(est1, o.fVec), est1);
- return vmul_f32(fVec, est2);
- #endif
- }
- AI SkNx operator==(const SkNx& o) const { return vreinterpret_f32_u32(vceq_f32(fVec, o.fVec)); }
- AI SkNx operator <(const SkNx& o) const { return vreinterpret_f32_u32(vclt_f32(fVec, o.fVec)); }
- AI SkNx operator >(const SkNx& o) const { return vreinterpret_f32_u32(vcgt_f32(fVec, o.fVec)); }
- AI SkNx operator<=(const SkNx& o) const { return vreinterpret_f32_u32(vcle_f32(fVec, o.fVec)); }
- AI SkNx operator>=(const SkNx& o) const { return vreinterpret_f32_u32(vcge_f32(fVec, o.fVec)); }
- AI SkNx operator!=(const SkNx& o) const {
- return vreinterpret_f32_u32(vmvn_u32(vceq_f32(fVec, o.fVec)));
- }
- AI static SkNx Min(const SkNx& l, const SkNx& r) { return vmin_f32(l.fVec, r.fVec); }
- AI static SkNx Max(const SkNx& l, const SkNx& r) { return vmax_f32(l.fVec, r.fVec); }
- AI SkNx abs() const { return vabs_f32(fVec); }
- AI SkNx floor() const {
- #if defined(SK_CPU_ARM64)
- return vrndm_f32(fVec);
- #else
- return emulate_vrndm_f32(fVec);
- #endif
- }
- AI SkNx rsqrt() const {
- float32x2_t est0 = vrsqrte_f32(fVec);
- return vmul_f32(vrsqrts_f32(fVec, vmul_f32(est0, est0)), est0);
- }
- AI SkNx sqrt() const {
- #if defined(SK_CPU_ARM64)
- return vsqrt_f32(fVec);
- #else
- float32x2_t est0 = vrsqrte_f32(fVec),
- est1 = vmul_f32(vrsqrts_f32(fVec, vmul_f32(est0, est0)), est0),
- est2 = vmul_f32(vrsqrts_f32(fVec, vmul_f32(est1, est1)), est1);
- return vmul_f32(fVec, est2);
- #endif
- }
- AI float operator[](int k) const {
- SkASSERT(0 <= k && k < 2);
- union { float32x2_t v; float fs[2]; } pun = {fVec};
- return pun.fs[k&1];
- }
- AI bool allTrue() const {
- #if defined(SK_CPU_ARM64)
- return 0 != vminv_u32(vreinterpret_u32_f32(fVec));
- #else
- auto v = vreinterpret_u32_f32(fVec);
- return vget_lane_u32(v,0) && vget_lane_u32(v,1);
- #endif
- }
- AI bool anyTrue() const {
- #if defined(SK_CPU_ARM64)
- return 0 != vmaxv_u32(vreinterpret_u32_f32(fVec));
- #else
- auto v = vreinterpret_u32_f32(fVec);
- return vget_lane_u32(v,0) || vget_lane_u32(v,1);
- #endif
- }
- AI SkNx thenElse(const SkNx& t, const SkNx& e) const {
- return vbsl_f32(vreinterpret_u32_f32(fVec), t.fVec, e.fVec);
- }
- float32x2_t fVec;
- };
- template <>
- class SkNx<4, float> {
- public:
- AI SkNx(float32x4_t vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(float val) : fVec(vdupq_n_f32(val)) {}
- AI SkNx(float a, float b, float c, float d) { fVec = (float32x4_t) { a, b, c, d }; }
- AI static SkNx Load(const void* ptr) { return vld1q_f32((const float*)ptr); }
- AI void store(void* ptr) const { vst1q_f32((float*)ptr, fVec); }
- AI static void Load2(const void* ptr, SkNx* x, SkNx* y) {
- float32x4x2_t xy = vld2q_f32((const float*) ptr);
- *x = xy.val[0];
- *y = xy.val[1];
- }
- AI static void Load4(const void* ptr, SkNx* r, SkNx* g, SkNx* b, SkNx* a) {
- float32x4x4_t rgba = vld4q_f32((const float*) ptr);
- *r = rgba.val[0];
- *g = rgba.val[1];
- *b = rgba.val[2];
- *a = rgba.val[3];
- }
- AI static void Store4(void* dst, const SkNx& r, const SkNx& g, const SkNx& b, const SkNx& a) {
- float32x4x4_t rgba = {{
- r.fVec,
- g.fVec,
- b.fVec,
- a.fVec,
- }};
- vst4q_f32((float*) dst, rgba);
- }
- AI SkNx invert() const {
- float32x4_t est0 = vrecpeq_f32(fVec),
- est1 = vmulq_f32(vrecpsq_f32(est0, fVec), est0);
- return est1;
- }
- AI SkNx operator - () const { return vnegq_f32(fVec); }
- AI SkNx operator + (const SkNx& o) const { return vaddq_f32(fVec, o.fVec); }
- AI SkNx operator - (const SkNx& o) const { return vsubq_f32(fVec, o.fVec); }
- AI SkNx operator * (const SkNx& o) const { return vmulq_f32(fVec, o.fVec); }
- AI SkNx operator / (const SkNx& o) const {
- #if defined(SK_CPU_ARM64)
- return vdivq_f32(fVec, o.fVec);
- #else
- float32x4_t est0 = vrecpeq_f32(o.fVec),
- est1 = vmulq_f32(vrecpsq_f32(est0, o.fVec), est0),
- est2 = vmulq_f32(vrecpsq_f32(est1, o.fVec), est1);
- return vmulq_f32(fVec, est2);
- #endif
- }
- AI SkNx operator==(const SkNx& o) const {return vreinterpretq_f32_u32(vceqq_f32(fVec, o.fVec));}
- AI SkNx operator <(const SkNx& o) const {return vreinterpretq_f32_u32(vcltq_f32(fVec, o.fVec));}
- AI SkNx operator >(const SkNx& o) const {return vreinterpretq_f32_u32(vcgtq_f32(fVec, o.fVec));}
- AI SkNx operator<=(const SkNx& o) const {return vreinterpretq_f32_u32(vcleq_f32(fVec, o.fVec));}
- AI SkNx operator>=(const SkNx& o) const {return vreinterpretq_f32_u32(vcgeq_f32(fVec, o.fVec));}
- AI SkNx operator!=(const SkNx& o) const {
- return vreinterpretq_f32_u32(vmvnq_u32(vceqq_f32(fVec, o.fVec)));
- }
- AI static SkNx Min(const SkNx& l, const SkNx& r) { return vminq_f32(l.fVec, r.fVec); }
- AI static SkNx Max(const SkNx& l, const SkNx& r) { return vmaxq_f32(l.fVec, r.fVec); }
- AI SkNx abs() const { return vabsq_f32(fVec); }
- AI SkNx floor() const {
- #if defined(SK_CPU_ARM64)
- return vrndmq_f32(fVec);
- #else
- return emulate_vrndmq_f32(fVec);
- #endif
- }
- AI SkNx rsqrt() const {
- float32x4_t est0 = vrsqrteq_f32(fVec);
- return vmulq_f32(vrsqrtsq_f32(fVec, vmulq_f32(est0, est0)), est0);
- }
- AI SkNx sqrt() const {
- #if defined(SK_CPU_ARM64)
- return vsqrtq_f32(fVec);
- #else
- float32x4_t est0 = vrsqrteq_f32(fVec),
- est1 = vmulq_f32(vrsqrtsq_f32(fVec, vmulq_f32(est0, est0)), est0),
- est2 = vmulq_f32(vrsqrtsq_f32(fVec, vmulq_f32(est1, est1)), est1);
- return vmulq_f32(fVec, est2);
- #endif
- }
- AI float operator[](int k) const {
- SkASSERT(0 <= k && k < 4);
- union { float32x4_t v; float fs[4]; } pun = {fVec};
- return pun.fs[k&3];
- }
- AI float min() const {
- #if defined(SK_CPU_ARM64)
- return vminvq_f32(fVec);
- #else
- SkNx min = Min(*this, vrev64q_f32(fVec));
- return SkTMin(min[0], min[2]);
- #endif
- }
- AI float max() const {
- #if defined(SK_CPU_ARM64)
- return vmaxvq_f32(fVec);
- #else
- SkNx max = Max(*this, vrev64q_f32(fVec));
- return SkTMax(max[0], max[2]);
- #endif
- }
- AI bool allTrue() const {
- #if defined(SK_CPU_ARM64)
- return 0 != vminvq_u32(vreinterpretq_u32_f32(fVec));
- #else
- auto v = vreinterpretq_u32_f32(fVec);
- return vgetq_lane_u32(v,0) && vgetq_lane_u32(v,1)
- && vgetq_lane_u32(v,2) && vgetq_lane_u32(v,3);
- #endif
- }
- AI bool anyTrue() const {
- #if defined(SK_CPU_ARM64)
- return 0 != vmaxvq_u32(vreinterpretq_u32_f32(fVec));
- #else
- auto v = vreinterpretq_u32_f32(fVec);
- return vgetq_lane_u32(v,0) || vgetq_lane_u32(v,1)
- || vgetq_lane_u32(v,2) || vgetq_lane_u32(v,3);
- #endif
- }
- AI SkNx thenElse(const SkNx& t, const SkNx& e) const {
- return vbslq_f32(vreinterpretq_u32_f32(fVec), t.fVec, e.fVec);
- }
- float32x4_t fVec;
- };
- #if defined(SK_CPU_ARM64)
- AI static Sk4f SkNx_fma(const Sk4f& f, const Sk4f& m, const Sk4f& a) {
- return vfmaq_f32(a.fVec, f.fVec, m.fVec);
- }
- #endif
- // It's possible that for our current use cases, representing this as
- // half a uint16x8_t might be better than representing it as a uint16x4_t.
- // It'd make conversion to Sk4b one step simpler.
- template <>
- class SkNx<4, uint16_t> {
- public:
- AI SkNx(const uint16x4_t& vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(uint16_t val) : fVec(vdup_n_u16(val)) {}
- AI SkNx(uint16_t a, uint16_t b, uint16_t c, uint16_t d) {
- fVec = (uint16x4_t) { a,b,c,d };
- }
- AI static SkNx Load(const void* ptr) { return vld1_u16((const uint16_t*)ptr); }
- AI void store(void* ptr) const { vst1_u16((uint16_t*)ptr, fVec); }
- AI static void Load4(const void* ptr, SkNx* r, SkNx* g, SkNx* b, SkNx* a) {
- uint16x4x4_t rgba = vld4_u16((const uint16_t*)ptr);
- *r = rgba.val[0];
- *g = rgba.val[1];
- *b = rgba.val[2];
- *a = rgba.val[3];
- }
- AI static void Load3(const void* ptr, SkNx* r, SkNx* g, SkNx* b) {
- uint16x4x3_t rgba = vld3_u16((const uint16_t*)ptr);
- *r = rgba.val[0];
- *g = rgba.val[1];
- *b = rgba.val[2];
- }
- AI static void Store4(void* dst, const SkNx& r, const SkNx& g, const SkNx& b, const SkNx& a) {
- uint16x4x4_t rgba = {{
- r.fVec,
- g.fVec,
- b.fVec,
- a.fVec,
- }};
- vst4_u16((uint16_t*) dst, rgba);
- }
- AI SkNx operator + (const SkNx& o) const { return vadd_u16(fVec, o.fVec); }
- AI SkNx operator - (const SkNx& o) const { return vsub_u16(fVec, o.fVec); }
- AI SkNx operator * (const SkNx& o) const { return vmul_u16(fVec, o.fVec); }
- AI SkNx operator & (const SkNx& o) const { return vand_u16(fVec, o.fVec); }
- AI SkNx operator | (const SkNx& o) const { return vorr_u16(fVec, o.fVec); }
- AI SkNx operator << (int bits) const { return fVec << SkNx(bits).fVec; }
- AI SkNx operator >> (int bits) const { return fVec >> SkNx(bits).fVec; }
- AI static SkNx Min(const SkNx& a, const SkNx& b) { return vmin_u16(a.fVec, b.fVec); }
- AI uint16_t operator[](int k) const {
- SkASSERT(0 <= k && k < 4);
- union { uint16x4_t v; uint16_t us[4]; } pun = {fVec};
- return pun.us[k&3];
- }
- AI SkNx thenElse(const SkNx& t, const SkNx& e) const {
- return vbsl_u16(fVec, t.fVec, e.fVec);
- }
- uint16x4_t fVec;
- };
- template <>
- class SkNx<8, uint16_t> {
- public:
- AI SkNx(const uint16x8_t& vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(uint16_t val) : fVec(vdupq_n_u16(val)) {}
- AI static SkNx Load(const void* ptr) { return vld1q_u16((const uint16_t*)ptr); }
- AI 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 = (uint16x8_t) { a,b,c,d, e,f,g,h };
- }
- AI void store(void* ptr) const { vst1q_u16((uint16_t*)ptr, fVec); }
- AI SkNx operator + (const SkNx& o) const { return vaddq_u16(fVec, o.fVec); }
- AI SkNx operator - (const SkNx& o) const { return vsubq_u16(fVec, o.fVec); }
- AI SkNx operator * (const SkNx& o) const { return vmulq_u16(fVec, o.fVec); }
- AI SkNx operator & (const SkNx& o) const { return vandq_u16(fVec, o.fVec); }
- AI SkNx operator | (const SkNx& o) const { return vorrq_u16(fVec, o.fVec); }
- AI SkNx operator << (int bits) const { return fVec << SkNx(bits).fVec; }
- AI SkNx operator >> (int bits) const { return fVec >> SkNx(bits).fVec; }
- AI static SkNx Min(const SkNx& a, const SkNx& b) { return vminq_u16(a.fVec, b.fVec); }
- AI uint16_t operator[](int k) const {
- SkASSERT(0 <= k && k < 8);
- union { uint16x8_t v; uint16_t us[8]; } pun = {fVec};
- return pun.us[k&7];
- }
- AI SkNx mulHi(const SkNx& m) const {
- uint32x4_t hi = vmull_u16(vget_high_u16(fVec), vget_high_u16(m.fVec));
- uint32x4_t lo = vmull_u16( vget_low_u16(fVec), vget_low_u16(m.fVec));
- return { vcombine_u16(vshrn_n_u32(lo,16), vshrn_n_u32(hi,16)) };
- }
- AI SkNx thenElse(const SkNx& t, const SkNx& e) const {
- return vbslq_u16(fVec, t.fVec, e.fVec);
- }
- uint16x8_t fVec;
- };
- template <>
- class SkNx<4, uint8_t> {
- public:
- typedef uint32_t __attribute__((aligned(1))) unaligned_uint32_t;
- AI SkNx(const uint8x8_t& vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(uint8_t a, uint8_t b, uint8_t c, uint8_t d) {
- fVec = (uint8x8_t){a,b,c,d, 0,0,0,0};
- }
- AI static SkNx Load(const void* ptr) {
- return (uint8x8_t)vld1_dup_u32((const unaligned_uint32_t*)ptr);
- }
- AI void store(void* ptr) const {
- return vst1_lane_u32((unaligned_uint32_t*)ptr, (uint32x2_t)fVec, 0);
- }
- AI uint8_t operator[](int k) const {
- SkASSERT(0 <= k && k < 4);
- union { uint8x8_t v; uint8_t us[8]; } pun = {fVec};
- return pun.us[k&3];
- }
- // TODO as needed
- uint8x8_t fVec;
- };
- template <>
- class SkNx<8, uint8_t> {
- public:
- AI SkNx(const uint8x8_t& vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(uint8_t val) : fVec(vdup_n_u8(val)) {}
- AI 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) {
- fVec = (uint8x8_t) { a,b,c,d, e,f,g,h };
- }
- AI static SkNx Load(const void* ptr) { return vld1_u8((const uint8_t*)ptr); }
- AI void store(void* ptr) const { vst1_u8((uint8_t*)ptr, fVec); }
- AI uint8_t operator[](int k) const {
- SkASSERT(0 <= k && k < 8);
- union { uint8x8_t v; uint8_t us[8]; } pun = {fVec};
- return pun.us[k&7];
- }
- uint8x8_t fVec;
- };
- template <>
- class SkNx<16, uint8_t> {
- public:
- AI SkNx(const uint8x16_t& vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(uint8_t val) : fVec(vdupq_n_u8(val)) {}
- AI 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 = (uint8x16_t) { a,b,c,d, e,f,g,h, i,j,k,l, m,n,o,p };
- }
- AI static SkNx Load(const void* ptr) { return vld1q_u8((const uint8_t*)ptr); }
- AI void store(void* ptr) const { vst1q_u8((uint8_t*)ptr, fVec); }
- AI SkNx saturatedAdd(const SkNx& o) const { return vqaddq_u8(fVec, o.fVec); }
- AI SkNx operator + (const SkNx& o) const { return vaddq_u8(fVec, o.fVec); }
- AI SkNx operator - (const SkNx& o) const { return vsubq_u8(fVec, o.fVec); }
- AI SkNx operator & (const SkNx& o) const { return vandq_u8(fVec, o.fVec); }
- AI static SkNx Min(const SkNx& a, const SkNx& b) { return vminq_u8(a.fVec, b.fVec); }
- AI SkNx operator < (const SkNx& o) const { return vcltq_u8(fVec, o.fVec); }
- AI uint8_t operator[](int k) const {
- SkASSERT(0 <= k && k < 16);
- union { uint8x16_t v; uint8_t us[16]; } pun = {fVec};
- return pun.us[k&15];
- }
- AI SkNx thenElse(const SkNx& t, const SkNx& e) const {
- return vbslq_u8(fVec, t.fVec, e.fVec);
- }
- uint8x16_t fVec;
- };
- template <>
- class SkNx<4, int32_t> {
- public:
- AI SkNx(const int32x4_t& vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(int32_t v) {
- fVec = vdupq_n_s32(v);
- }
- AI SkNx(int32_t a, int32_t b, int32_t c, int32_t d) {
- fVec = (int32x4_t){a,b,c,d};
- }
- AI static SkNx Load(const void* ptr) {
- return vld1q_s32((const int32_t*)ptr);
- }
- AI void store(void* ptr) const {
- return vst1q_s32((int32_t*)ptr, fVec);
- }
- AI int32_t operator[](int k) const {
- SkASSERT(0 <= k && k < 4);
- union { int32x4_t v; int32_t is[4]; } pun = {fVec};
- return pun.is[k&3];
- }
- AI SkNx operator + (const SkNx& o) const { return vaddq_s32(fVec, o.fVec); }
- AI SkNx operator - (const SkNx& o) const { return vsubq_s32(fVec, o.fVec); }
- AI SkNx operator * (const SkNx& o) const { return vmulq_s32(fVec, o.fVec); }
- AI SkNx operator & (const SkNx& o) const { return vandq_s32(fVec, o.fVec); }
- AI SkNx operator | (const SkNx& o) const { return vorrq_s32(fVec, o.fVec); }
- AI SkNx operator ^ (const SkNx& o) const { return veorq_s32(fVec, o.fVec); }
- AI SkNx operator << (int bits) const { return fVec << SkNx(bits).fVec; }
- AI SkNx operator >> (int bits) const { return fVec >> SkNx(bits).fVec; }
- AI SkNx operator == (const SkNx& o) const {
- return vreinterpretq_s32_u32(vceqq_s32(fVec, o.fVec));
- }
- AI SkNx operator < (const SkNx& o) const {
- return vreinterpretq_s32_u32(vcltq_s32(fVec, o.fVec));
- }
- AI SkNx operator > (const SkNx& o) const {
- return vreinterpretq_s32_u32(vcgtq_s32(fVec, o.fVec));
- }
- AI static SkNx Min(const SkNx& a, const SkNx& b) { return vminq_s32(a.fVec, b.fVec); }
- AI static SkNx Max(const SkNx& a, const SkNx& b) { return vmaxq_s32(a.fVec, b.fVec); }
- // TODO as needed
- AI SkNx thenElse(const SkNx& t, const SkNx& e) const {
- return vbslq_s32(vreinterpretq_u32_s32(fVec), t.fVec, e.fVec);
- }
- AI SkNx abs() const { return vabsq_s32(fVec); }
- int32x4_t fVec;
- };
- template <>
- class SkNx<4, uint32_t> {
- public:
- AI SkNx(const uint32x4_t& vec) : fVec(vec) {}
- AI SkNx() {}
- AI SkNx(uint32_t v) {
- fVec = vdupq_n_u32(v);
- }
- AI SkNx(uint32_t a, uint32_t b, uint32_t c, uint32_t d) {
- fVec = (uint32x4_t){a,b,c,d};
- }
- AI static SkNx Load(const void* ptr) {
- return vld1q_u32((const uint32_t*)ptr);
- }
- AI void store(void* ptr) const {
- return vst1q_u32((uint32_t*)ptr, fVec);
- }
- AI uint32_t operator[](int k) const {
- SkASSERT(0 <= k && k < 4);
- union { uint32x4_t v; uint32_t us[4]; } pun = {fVec};
- return pun.us[k&3];
- }
- AI SkNx operator + (const SkNx& o) const { return vaddq_u32(fVec, o.fVec); }
- AI SkNx operator - (const SkNx& o) const { return vsubq_u32(fVec, o.fVec); }
- AI SkNx operator * (const SkNx& o) const { return vmulq_u32(fVec, o.fVec); }
- AI SkNx operator & (const SkNx& o) const { return vandq_u32(fVec, o.fVec); }
- AI SkNx operator | (const SkNx& o) const { return vorrq_u32(fVec, o.fVec); }
- AI SkNx operator ^ (const SkNx& o) const { return veorq_u32(fVec, o.fVec); }
- AI SkNx operator << (int bits) const { return fVec << SkNx(bits).fVec; }
- AI SkNx operator >> (int bits) const { return fVec >> SkNx(bits).fVec; }
- AI SkNx operator == (const SkNx& o) const { return vceqq_u32(fVec, o.fVec); }
- AI SkNx operator < (const SkNx& o) const { return vcltq_u32(fVec, o.fVec); }
- AI SkNx operator > (const SkNx& o) const { return vcgtq_u32(fVec, o.fVec); }
- AI static SkNx Min(const SkNx& a, const SkNx& b) { return vminq_u32(a.fVec, b.fVec); }
- // TODO as needed
- AI SkNx mulHi(const SkNx& m) const {
- uint64x2_t hi = vmull_u32(vget_high_u32(fVec), vget_high_u32(m.fVec));
- uint64x2_t lo = vmull_u32( vget_low_u32(fVec), vget_low_u32(m.fVec));
- return { vcombine_u32(vshrn_n_u64(lo,32), vshrn_n_u64(hi,32)) };
- }
- AI SkNx thenElse(const SkNx& t, const SkNx& e) const {
- return vbslq_u32(fVec, t.fVec, e.fVec);
- }
- uint32x4_t fVec;
- };
- template<> AI /*static*/ Sk4i SkNx_cast<int32_t, float>(const Sk4f& src) {
- return vcvtq_s32_f32(src.fVec);
- }
- template<> AI /*static*/ Sk4f SkNx_cast<float, int32_t>(const Sk4i& src) {
- return vcvtq_f32_s32(src.fVec);
- }
- template<> AI /*static*/ Sk4f SkNx_cast<float, uint32_t>(const Sk4u& src) {
- return SkNx_cast<float>(Sk4i::Load(&src));
- }
- template<> AI /*static*/ Sk4h SkNx_cast<uint16_t, float>(const Sk4f& src) {
- return vqmovn_u32(vcvtq_u32_f32(src.fVec));
- }
- template<> AI /*static*/ Sk4f SkNx_cast<float, uint16_t>(const Sk4h& src) {
- return vcvtq_f32_u32(vmovl_u16(src.fVec));
- }
- template<> AI /*static*/ Sk4b SkNx_cast<uint8_t, float>(const Sk4f& src) {
- uint32x4_t _32 = vcvtq_u32_f32(src.fVec);
- uint16x4_t _16 = vqmovn_u32(_32);
- return vqmovn_u16(vcombine_u16(_16, _16));
- }
- template<> AI /*static*/ Sk4u SkNx_cast<uint32_t, uint8_t>(const Sk4b& src) {
- uint16x8_t _16 = vmovl_u8(src.fVec);
- return vmovl_u16(vget_low_u16(_16));
- }
- template<> AI /*static*/ Sk4i SkNx_cast<int32_t, uint8_t>(const Sk4b& src) {
- return vreinterpretq_s32_u32(SkNx_cast<uint32_t>(src).fVec);
- }
- template<> AI /*static*/ Sk4f SkNx_cast<float, uint8_t>(const Sk4b& src) {
- return vcvtq_f32_s32(SkNx_cast<int32_t>(src).fVec);
- }
- template<> AI /*static*/ Sk16b SkNx_cast<uint8_t, float>(const Sk16f& src) {
- Sk8f ab, cd;
- SkNx_split(src, &ab, &cd);
- Sk4f a,b,c,d;
- SkNx_split(ab, &a, &b);
- SkNx_split(cd, &c, &d);
- return vuzpq_u8(vuzpq_u8((uint8x16_t)vcvtq_u32_f32(a.fVec),
- (uint8x16_t)vcvtq_u32_f32(b.fVec)).val[0],
- vuzpq_u8((uint8x16_t)vcvtq_u32_f32(c.fVec),
- (uint8x16_t)vcvtq_u32_f32(d.fVec)).val[0]).val[0];
- }
- template<> AI /*static*/ Sk8b SkNx_cast<uint8_t, int32_t>(const Sk8i& src) {
- Sk4i a, b;
- SkNx_split(src, &a, &b);
- uint16x4_t a16 = vqmovun_s32(a.fVec);
- uint16x4_t b16 = vqmovun_s32(b.fVec);
- return vqmovn_u16(vcombine_u16(a16, b16));
- }
- template<> AI /*static*/ Sk4h SkNx_cast<uint16_t, uint8_t>(const Sk4b& src) {
- return vget_low_u16(vmovl_u8(src.fVec));
- }
- template<> AI /*static*/ Sk8h SkNx_cast<uint16_t, uint8_t>(const Sk8b& src) {
- return vmovl_u8(src.fVec);
- }
- template<> AI /*static*/ Sk4b SkNx_cast<uint8_t, uint16_t>(const Sk4h& src) {
- return vmovn_u16(vcombine_u16(src.fVec, src.fVec));
- }
- template<> AI /*static*/ Sk8b SkNx_cast<uint8_t, uint16_t>(const Sk8h& src) {
- return vqmovn_u16(src.fVec);
- }
- template<> AI /*static*/ Sk4b SkNx_cast<uint8_t, int32_t>(const Sk4i& src) {
- uint16x4_t _16 = vqmovun_s32(src.fVec);
- return vqmovn_u16(vcombine_u16(_16, _16));
- }
- template<> AI /*static*/ Sk4b SkNx_cast<uint8_t, uint32_t>(const Sk4u& src) {
- uint16x4_t _16 = vqmovn_u32(src.fVec);
- return vqmovn_u16(vcombine_u16(_16, _16));
- }
- template<> AI /*static*/ Sk4i SkNx_cast<int32_t, uint16_t>(const Sk4h& src) {
- return vreinterpretq_s32_u32(vmovl_u16(src.fVec));
- }
- template<> AI /*static*/ Sk4h SkNx_cast<uint16_t, int32_t>(const Sk4i& src) {
- return vmovn_u32(vreinterpretq_u32_s32(src.fVec));
- }
- template<> AI /*static*/ Sk4i SkNx_cast<int32_t, uint32_t>(const Sk4u& src) {
- return vreinterpretq_s32_u32(src.fVec);
- }
- AI static Sk4i Sk4f_round(const Sk4f& x) {
- return vcvtq_s32_f32((x + 0.5f).fVec);
- }
- } // namespace
- #endif//SkNx_neon_DEFINED
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