| /* |
| * 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> |
| |
| template <> |
| class SkNb<2, 4> { |
| public: |
| SkNb(uint32x2_t vec) : fVec(vec) {} |
| |
| SkNb() {} |
| bool allTrue() const { return vget_lane_u32(fVec, 0) && vget_lane_u32(fVec, 1); } |
| bool anyTrue() const { return vget_lane_u32(fVec, 0) || vget_lane_u32(fVec, 1); } |
| private: |
| uint32x2_t fVec; |
| }; |
| |
| template <> |
| class SkNb<4, 4> { |
| public: |
| SkNb(uint32x4_t vec) : fVec(vec) {} |
| |
| SkNb() {} |
| bool allTrue() const { return vgetq_lane_u32(fVec, 0) && vgetq_lane_u32(fVec, 1) |
| && vgetq_lane_u32(fVec, 2) && vgetq_lane_u32(fVec, 3); } |
| bool anyTrue() const { return vgetq_lane_u32(fVec, 0) || vgetq_lane_u32(fVec, 1) |
| || vgetq_lane_u32(fVec, 2) || vgetq_lane_u32(fVec, 3); } |
| private: |
| uint32x4_t fVec; |
| }; |
| |
| template <> |
| class SkNf<2, float> { |
| typedef SkNb<2, 4> Nb; |
| public: |
| SkNf(float32x2_t vec) : fVec(vec) {} |
| |
| SkNf() {} |
| explicit SkNf(float val) : fVec(vdup_n_f32(val)) {} |
| static SkNf Load(const float vals[2]) { return vld1_f32(vals); } |
| SkNf(float a, float b) { fVec = (float32x2_t) { a, b }; } |
| |
| void store(float vals[2]) const { vst1_f32(vals, fVec); } |
| |
| SkNf approxInvert() const { |
| float32x2_t est0 = vrecpe_f32(fVec), |
| est1 = vmul_f32(vrecps_f32(est0, fVec), est0); |
| return est1; |
| } |
| SkNf invert() const { |
| float32x2_t est1 = this->approxInvert().fVec, |
| est2 = vmul_f32(vrecps_f32(est1, fVec), est1); |
| return est2; |
| } |
| |
| SkNf operator + (const SkNf& o) const { return vadd_f32(fVec, o.fVec); } |
| SkNf operator - (const SkNf& o) const { return vsub_f32(fVec, o.fVec); } |
| SkNf operator * (const SkNf& o) const { return vmul_f32(fVec, o.fVec); } |
| SkNf operator / (const SkNf& o) const { |
| #if defined(SK_CPU_ARM64) |
| return vdiv_f32(fVec, o.fVec); |
| #else |
| return vmul_f32(fVec, o.invert().fVec); |
| #endif |
| } |
| |
| Nb operator == (const SkNf& o) const { return vceq_f32(fVec, o.fVec); } |
| Nb operator < (const SkNf& o) const { return vclt_f32(fVec, o.fVec); } |
| Nb operator > (const SkNf& o) const { return vcgt_f32(fVec, o.fVec); } |
| Nb operator <= (const SkNf& o) const { return vcle_f32(fVec, o.fVec); } |
| Nb operator >= (const SkNf& o) const { return vcge_f32(fVec, o.fVec); } |
| Nb operator != (const SkNf& o) const { return vmvn_u32(vceq_f32(fVec, o.fVec)); } |
| |
| static SkNf Min(const SkNf& l, const SkNf& r) { return vmin_f32(l.fVec, r.fVec); } |
| static SkNf Max(const SkNf& l, const SkNf& r) { return vmax_f32(l.fVec, r.fVec); } |
| |
| SkNf rsqrt() const { |
| float32x2_t est0 = vrsqrte_f32(fVec), |
| est1 = vmul_f32(vrsqrts_f32(fVec, vmul_f32(est0, est0)), est0); |
| return est1; |
| } |
| |
| SkNf sqrt() const { |
| #if defined(SK_CPU_ARM64) |
| return vsqrt_f32(fVec); |
| #else |
| float32x2_t est1 = this->rsqrt().fVec, |
| // An extra step of Newton's method to refine the estimate of 1/sqrt(this). |
| est2 = vmul_f32(vrsqrts_f32(fVec, vmul_f32(est1, est1)), est1); |
| return vmul_f32(fVec, est2); |
| #endif |
| } |
| |
| template <int k> float kth() const { |
| SkASSERT(0 <= k && k < 2); |
| return vget_lane_f32(fVec, k&1); |
| } |
| |
| private: |
| float32x2_t fVec; |
| }; |
| |
| #if defined(SK_CPU_ARM64) |
| template <> |
| class SkNb<2, 8> { |
| public: |
| SkNb(uint64x2_t vec) : fVec(vec) {} |
| |
| SkNb() {} |
| bool allTrue() const { return vgetq_lane_u64(fVec, 0) && vgetq_lane_u64(fVec, 1); } |
| bool anyTrue() const { return vgetq_lane_u64(fVec, 0) || vgetq_lane_u64(fVec, 1); } |
| private: |
| uint64x2_t fVec; |
| }; |
| |
| template <> |
| class SkNf<2, double> { |
| typedef SkNb<2, 8> Nb; |
| public: |
| SkNf(float64x2_t vec) : fVec(vec) {} |
| |
| SkNf() {} |
| explicit SkNf(double val) : fVec(vdupq_n_f64(val)) {} |
| static SkNf Load(const double vals[2]) { return vld1q_f64(vals); } |
| SkNf(double a, double b) { fVec = (float64x2_t) { a, b }; } |
| |
| void store(double vals[2]) const { vst1q_f64(vals, fVec); } |
| |
| SkNf operator + (const SkNf& o) const { return vaddq_f64(fVec, o.fVec); } |
| SkNf operator - (const SkNf& o) const { return vsubq_f64(fVec, o.fVec); } |
| SkNf operator * (const SkNf& o) const { return vmulq_f64(fVec, o.fVec); } |
| SkNf operator / (const SkNf& o) const { return vdivq_f64(fVec, o.fVec); } |
| |
| Nb operator == (const SkNf& o) const { return vceqq_f64(fVec, o.fVec); } |
| Nb operator < (const SkNf& o) const { return vcltq_f64(fVec, o.fVec); } |
| Nb operator > (const SkNf& o) const { return vcgtq_f64(fVec, o.fVec); } |
| Nb operator <= (const SkNf& o) const { return vcleq_f64(fVec, o.fVec); } |
| Nb operator >= (const SkNf& o) const { return vcgeq_f64(fVec, o.fVec); } |
| Nb operator != (const SkNf& o) const { |
| return vreinterpretq_u64_u32(vmvnq_u32(vreinterpretq_u32_u64(vceqq_f64(fVec, o.fVec)))); |
| } |
| |
| static SkNf Min(const SkNf& l, const SkNf& r) { return vminq_f64(l.fVec, r.fVec); } |
| static SkNf Max(const SkNf& l, const SkNf& r) { return vmaxq_f64(l.fVec, r.fVec); } |
| |
| SkNf sqrt() const { return vsqrtq_f64(fVec); } |
| SkNf rsqrt() const { |
| float64x2_t est0 = vrsqrteq_f64(fVec), |
| est1 = vmulq_f64(vrsqrtsq_f64(fVec, vmulq_f64(est0, est0)), est0); |
| return est1; |
| } |
| |
| SkNf approxInvert() const { |
| float64x2_t est0 = vrecpeq_f64(fVec), |
| est1 = vmulq_f64(vrecpsq_f64(est0, fVec), est0); |
| return est1; |
| } |
| |
| SkNf invert() const { |
| float64x2_t est1 = this->approxInvert().fVec, |
| est2 = vmulq_f64(vrecpsq_f64(est1, fVec), est1), |
| est3 = vmulq_f64(vrecpsq_f64(est2, fVec), est2); |
| return est3; |
| } |
| |
| template <int k> double kth() const { |
| SkASSERT(0 <= k && k < 2); |
| return vgetq_lane_f64(fVec, k&1); |
| } |
| |
| private: |
| float64x2_t fVec; |
| }; |
| #endif//defined(SK_CPU_ARM64) |
| |
| template <> |
| class SkNf<4, float> { |
| typedef SkNb<4, 4> Nb; |
| public: |
| SkNf(float32x4_t vec) : fVec(vec) {} |
| |
| SkNf() {} |
| explicit SkNf(float val) : fVec(vdupq_n_f32(val)) {} |
| static SkNf Load(const float vals[4]) { return vld1q_f32(vals); } |
| SkNf(float a, float b, float c, float d) { fVec = (float32x4_t) { a, b, c, d }; } |
| |
| void store(float vals[4]) const { vst1q_f32(vals, fVec); } |
| |
| SkNf approxInvert() const { |
| float32x4_t est0 = vrecpeq_f32(fVec), |
| est1 = vmulq_f32(vrecpsq_f32(est0, fVec), est0); |
| return est1; |
| } |
| SkNf invert() const { |
| float32x4_t est1 = this->approxInvert().fVec, |
| est2 = vmulq_f32(vrecpsq_f32(est1, fVec), est1); |
| return est2; |
| } |
| |
| SkNf operator + (const SkNf& o) const { return vaddq_f32(fVec, o.fVec); } |
| SkNf operator - (const SkNf& o) const { return vsubq_f32(fVec, o.fVec); } |
| SkNf operator * (const SkNf& o) const { return vmulq_f32(fVec, o.fVec); } |
| SkNf operator / (const SkNf& o) const { |
| #if defined(SK_CPU_ARM64) |
| return vdivq_f32(fVec, o.fVec); |
| #else |
| return vmulq_f32(fVec, o.invert().fVec); |
| #endif |
| } |
| |
| Nb operator == (const SkNf& o) const { return vceqq_f32(fVec, o.fVec); } |
| Nb operator < (const SkNf& o) const { return vcltq_f32(fVec, o.fVec); } |
| Nb operator > (const SkNf& o) const { return vcgtq_f32(fVec, o.fVec); } |
| Nb operator <= (const SkNf& o) const { return vcleq_f32(fVec, o.fVec); } |
| Nb operator >= (const SkNf& o) const { return vcgeq_f32(fVec, o.fVec); } |
| Nb operator != (const SkNf& o) const { return vmvnq_u32(vceqq_f32(fVec, o.fVec)); } |
| |
| static SkNf Min(const SkNf& l, const SkNf& r) { return vminq_f32(l.fVec, r.fVec); } |
| static SkNf Max(const SkNf& l, const SkNf& r) { return vmaxq_f32(l.fVec, r.fVec); } |
| |
| SkNf rsqrt() const { |
| float32x4_t est0 = vrsqrteq_f32(fVec), |
| est1 = vmulq_f32(vrsqrtsq_f32(fVec, vmulq_f32(est0, est0)), est0); |
| return est1; |
| } |
| |
| SkNf sqrt() const { |
| #if defined(SK_CPU_ARM64) |
| return vsqrtq_f32(fVec); |
| #else |
| float32x4_t est1 = this->rsqrt().fVec, |
| // An extra step of Newton's method to refine the estimate of 1/sqrt(this). |
| est2 = vmulq_f32(vrsqrtsq_f32(fVec, vmulq_f32(est1, est1)), est1); |
| return vmulq_f32(fVec, est2); |
| #endif |
| } |
| |
| template <int k> float kth() const { |
| SkASSERT(0 <= k && k < 4); |
| return vgetq_lane_f32(fVec, k&3); |
| } |
| |
| protected: |
| float32x4_t fVec; |
| }; |
| |
| #endif//SkNx_neon_DEFINED |