summaryrefslogtreecommitdiff
path: root/thirdparty/embree/common/math/vec2fa.h
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/embree/common/math/vec2fa.h')
-rw-r--r--thirdparty/embree/common/math/vec2fa.h301
1 files changed, 301 insertions, 0 deletions
diff --git a/thirdparty/embree/common/math/vec2fa.h b/thirdparty/embree/common/math/vec2fa.h
new file mode 100644
index 0000000000..a51fb68fd0
--- /dev/null
+++ b/thirdparty/embree/common/math/vec2fa.h
@@ -0,0 +1,301 @@
+// Copyright 2009-2021 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include "../sys/alloc.h"
+#include "math.h"
+#include "../simd/sse.h"
+
+namespace embree
+{
+ ////////////////////////////////////////////////////////////////////////////////
+ /// SSE Vec2fa Type
+ ////////////////////////////////////////////////////////////////////////////////
+
+ struct __aligned(16) Vec2fa
+ {
+ ALIGNED_STRUCT_(16);
+
+ typedef float Scalar;
+ enum { N = 2 };
+ union {
+ __m128 m128;
+ struct { float x,y,az,aw; };
+ };
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Constructors, Assignment & Cast Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline Vec2fa( ) {}
+ __forceinline Vec2fa( const __m128 a ) : m128(a) {}
+
+ __forceinline Vec2fa ( const Vec2<float>& other ) { x = other.x; y = other.y; }
+ __forceinline Vec2fa& operator =( const Vec2<float>& other ) { x = other.x; y = other.y; return *this; }
+
+ __forceinline Vec2fa ( const Vec2fa& other ) { m128 = other.m128; }
+ __forceinline Vec2fa& operator =( const Vec2fa& other ) { m128 = other.m128; return *this; }
+
+ __forceinline explicit Vec2fa( const float a ) : m128(_mm_set1_ps(a)) {}
+ __forceinline Vec2fa( const float x, const float y) : m128(_mm_set_ps(y, y, y, x)) {}
+
+ __forceinline explicit Vec2fa( const __m128i a ) : m128(_mm_cvtepi32_ps(a)) {}
+
+ __forceinline operator const __m128&() const { return m128; }
+ __forceinline operator __m128&() { return m128; }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Loads and Stores
+ ////////////////////////////////////////////////////////////////////////////////
+
+ static __forceinline Vec2fa load( const void* const a ) {
+ return Vec2fa(_mm_and_ps(_mm_load_ps((float*)a),_mm_castsi128_ps(_mm_set_epi32(0, 0, -1, -1))));
+ }
+
+ static __forceinline Vec2fa loadu( const void* const a ) {
+ return Vec2fa(_mm_and_ps(_mm_loadu_ps((float*)a),_mm_castsi128_ps(_mm_set_epi32(0, 0, -1, -1))));
+ }
+
+ static __forceinline void storeu ( void* ptr, const Vec2fa& v ) {
+ _mm_storeu_ps((float*)ptr,v);
+ }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Constants
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline Vec2fa( ZeroTy ) : m128(_mm_setzero_ps()) {}
+ __forceinline Vec2fa( OneTy ) : m128(_mm_set1_ps(1.0f)) {}
+ __forceinline Vec2fa( PosInfTy ) : m128(_mm_set1_ps(pos_inf)) {}
+ __forceinline Vec2fa( NegInfTy ) : m128(_mm_set1_ps(neg_inf)) {}
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Array Access
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline const float& operator []( const size_t index ) const { assert(index < 2); return (&x)[index]; }
+ __forceinline float& operator []( const size_t index ) { assert(index < 2); return (&x)[index]; }
+ };
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Unary Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline Vec2fa operator +( const Vec2fa& a ) { return a; }
+ __forceinline Vec2fa operator -( const Vec2fa& a ) {
+ const __m128 mask = _mm_castsi128_ps(_mm_set1_epi32(0x80000000));
+ return _mm_xor_ps(a.m128, mask);
+ }
+ __forceinline Vec2fa abs ( const Vec2fa& a ) {
+ const __m128 mask = _mm_castsi128_ps(_mm_set1_epi32(0x7fffffff));
+ return _mm_and_ps(a.m128, mask);
+ }
+ __forceinline Vec2fa sign ( const Vec2fa& a ) {
+ return blendv_ps(Vec2fa(one), -Vec2fa(one), _mm_cmplt_ps (a,Vec2fa(zero)));
+ }
+
+ __forceinline Vec2fa rcp ( const Vec2fa& a )
+ {
+#if defined(__AVX512VL__)
+ const Vec2fa r = _mm_rcp14_ps(a.m128);
+#else
+ const Vec2fa r = _mm_rcp_ps(a.m128);
+#endif
+
+#if defined(__AVX2__)
+ const Vec2fa res = _mm_mul_ps(r,_mm_fnmadd_ps(r, a, vfloat4(2.0f)));
+#else
+ const Vec2fa res = _mm_mul_ps(r,_mm_sub_ps(vfloat4(2.0f), _mm_mul_ps(r, a)));
+ //return _mm_sub_ps(_mm_add_ps(r, r), _mm_mul_ps(_mm_mul_ps(r, r), a));
+#endif
+
+ return res;
+ }
+
+ __forceinline Vec2fa sqrt ( const Vec2fa& a ) { return _mm_sqrt_ps(a.m128); }
+ __forceinline Vec2fa sqr ( const Vec2fa& a ) { return _mm_mul_ps(a,a); }
+
+ __forceinline Vec2fa rsqrt( const Vec2fa& a )
+ {
+#if defined(__AVX512VL__)
+ __m128 r = _mm_rsqrt14_ps(a.m128);
+#else
+ __m128 r = _mm_rsqrt_ps(a.m128);
+#endif
+ return _mm_add_ps(_mm_mul_ps(_mm_set1_ps(1.5f),r), _mm_mul_ps(_mm_mul_ps(_mm_mul_ps(a, _mm_set1_ps(-0.5f)), r), _mm_mul_ps(r, r)));
+ }
+
+ __forceinline Vec2fa zero_fix(const Vec2fa& a) {
+ return blendv_ps(a, _mm_set1_ps(min_rcp_input), _mm_cmplt_ps (abs(a).m128, _mm_set1_ps(min_rcp_input)));
+ }
+ __forceinline Vec2fa rcp_safe(const Vec2fa& a) {
+ return rcp(zero_fix(a));
+ }
+ __forceinline Vec2fa log ( const Vec2fa& a ) {
+ return Vec2fa(logf(a.x),logf(a.y));
+ }
+
+ __forceinline Vec2fa exp ( const Vec2fa& a ) {
+ return Vec2fa(expf(a.x),expf(a.y));
+ }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Binary Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline Vec2fa operator +( const Vec2fa& a, const Vec2fa& b ) { return _mm_add_ps(a.m128, b.m128); }
+ __forceinline Vec2fa operator -( const Vec2fa& a, const Vec2fa& b ) { return _mm_sub_ps(a.m128, b.m128); }
+ __forceinline Vec2fa operator *( const Vec2fa& a, const Vec2fa& b ) { return _mm_mul_ps(a.m128, b.m128); }
+ __forceinline Vec2fa operator *( const Vec2fa& a, const float b ) { return a * Vec2fa(b); }
+ __forceinline Vec2fa operator *( const float a, const Vec2fa& b ) { return Vec2fa(a) * b; }
+ __forceinline Vec2fa operator /( const Vec2fa& a, const Vec2fa& b ) { return _mm_div_ps(a.m128,b.m128); }
+ __forceinline Vec2fa operator /( const Vec2fa& a, const float b ) { return _mm_div_ps(a.m128,_mm_set1_ps(b)); }
+ __forceinline Vec2fa operator /( const float a, const Vec2fa& b ) { return _mm_div_ps(_mm_set1_ps(a),b.m128); }
+
+ __forceinline Vec2fa min( const Vec2fa& a, const Vec2fa& b ) { return _mm_min_ps(a.m128,b.m128); }
+ __forceinline Vec2fa max( const Vec2fa& a, const Vec2fa& b ) { return _mm_max_ps(a.m128,b.m128); }
+
+#if defined(__SSE4_1__)
+ __forceinline Vec2fa mini(const Vec2fa& a, const Vec2fa& b) {
+ const vint4 ai = _mm_castps_si128(a);
+ const vint4 bi = _mm_castps_si128(b);
+ const vint4 ci = _mm_min_epi32(ai,bi);
+ return _mm_castsi128_ps(ci);
+ }
+#endif
+
+#if defined(__SSE4_1__)
+ __forceinline Vec2fa maxi(const Vec2fa& a, const Vec2fa& b) {
+ const vint4 ai = _mm_castps_si128(a);
+ const vint4 bi = _mm_castps_si128(b);
+ const vint4 ci = _mm_max_epi32(ai,bi);
+ return _mm_castsi128_ps(ci);
+ }
+#endif
+
+ __forceinline Vec2fa pow ( const Vec2fa& a, const float& b ) {
+ return Vec2fa(powf(a.x,b),powf(a.y,b));
+ }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Ternary Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+#if defined(__AVX2__)
+ __forceinline Vec2fa madd ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return _mm_fmadd_ps(a,b,c); }
+ __forceinline Vec2fa msub ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return _mm_fmsub_ps(a,b,c); }
+ __forceinline Vec2fa nmadd ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return _mm_fnmadd_ps(a,b,c); }
+ __forceinline Vec2fa nmsub ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return _mm_fnmsub_ps(a,b,c); }
+#else
+ __forceinline Vec2fa madd ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return a*b+c; }
+ __forceinline Vec2fa msub ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return a*b-c; }
+ __forceinline Vec2fa nmadd ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return -a*b+c;}
+ __forceinline Vec2fa nmsub ( const Vec2fa& a, const Vec2fa& b, const Vec2fa& c) { return -a*b-c; }
+#endif
+
+ __forceinline Vec2fa madd ( const float a, const Vec2fa& b, const Vec2fa& c) { return madd(Vec2fa(a),b,c); }
+ __forceinline Vec2fa msub ( const float a, const Vec2fa& b, const Vec2fa& c) { return msub(Vec2fa(a),b,c); }
+ __forceinline Vec2fa nmadd ( const float a, const Vec2fa& b, const Vec2fa& c) { return nmadd(Vec2fa(a),b,c); }
+ __forceinline Vec2fa nmsub ( const float a, const Vec2fa& b, const Vec2fa& c) { return nmsub(Vec2fa(a),b,c); }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Assignment Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline Vec2fa& operator +=( Vec2fa& a, const Vec2fa& b ) { return a = a + b; }
+ __forceinline Vec2fa& operator -=( Vec2fa& a, const Vec2fa& b ) { return a = a - b; }
+ __forceinline Vec2fa& operator *=( Vec2fa& a, const Vec2fa& b ) { return a = a * b; }
+ __forceinline Vec2fa& operator *=( Vec2fa& a, const float b ) { return a = a * b; }
+ __forceinline Vec2fa& operator /=( Vec2fa& a, const Vec2fa& b ) { return a = a / b; }
+ __forceinline Vec2fa& operator /=( Vec2fa& a, const float b ) { return a = a / b; }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Reductions
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline float reduce_add(const Vec2fa& v) { return v.x+v.y; }
+ __forceinline float reduce_mul(const Vec2fa& v) { return v.x*v.y; }
+ __forceinline float reduce_min(const Vec2fa& v) { return min(v.x,v.y); }
+ __forceinline float reduce_max(const Vec2fa& v) { return max(v.x,v.y); }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Comparison Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline bool operator ==( const Vec2fa& a, const Vec2fa& b ) { return (_mm_movemask_ps(_mm_cmpeq_ps (a.m128, b.m128)) & 3) == 3; }
+ __forceinline bool operator !=( const Vec2fa& a, const Vec2fa& b ) { return (_mm_movemask_ps(_mm_cmpneq_ps(a.m128, b.m128)) & 3) != 0; }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Euclidian Space Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+#if defined(__SSE4_1__)
+ __forceinline float dot ( const Vec2fa& a, const Vec2fa& b ) {
+ return _mm_cvtss_f32(_mm_dp_ps(a,b,0x3F));
+ }
+#else
+ __forceinline float dot ( const Vec2fa& a, const Vec2fa& b ) {
+ return reduce_add(a*b);
+ }
+#endif
+
+ __forceinline Vec2fa cross ( const Vec2fa& a ) {
+ return Vec2fa(-a.y,a.x);
+ }
+
+ __forceinline float sqr_length ( const Vec2fa& a ) { return dot(a,a); }
+ __forceinline float rcp_length ( const Vec2fa& a ) { return rsqrt(dot(a,a)); }
+ __forceinline float rcp_length2( const Vec2fa& a ) { return rcp(dot(a,a)); }
+ __forceinline float length ( const Vec2fa& a ) { return sqrt(dot(a,a)); }
+ __forceinline Vec2fa normalize( const Vec2fa& a ) { return a*rsqrt(dot(a,a)); }
+ __forceinline float distance ( const Vec2fa& a, const Vec2fa& b ) { return length(a-b); }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Select
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline Vec2fa select( bool s, const Vec2fa& t, const Vec2fa& f ) {
+ __m128 mask = s ? _mm_castsi128_ps(_mm_cmpeq_epi32(_mm_setzero_si128(), _mm_setzero_si128())) : _mm_setzero_ps();
+ return blendv_ps(f, t, mask);
+ }
+
+ __forceinline Vec2fa lerp(const Vec2fa& v0, const Vec2fa& v1, const float t) {
+ return madd(1.0f-t,v0,t*v1);
+ }
+
+ __forceinline int maxDim ( const Vec2fa& a )
+ {
+ const Vec2fa b = abs(a);
+ if (b.x > b.y) return 0;
+ else return 1;
+ }
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Rounding Functions
+ ////////////////////////////////////////////////////////////////////////////////
+
+#if defined(__aarch64__)
+ //__forceinline Vec2fa trunc(const Vec2fa& a) { return vrndq_f32(a); }
+ __forceinline Vec2fa floor(const Vec2fa& a) { return vrndmq_f32(a); }
+ __forceinline Vec2fa ceil (const Vec2fa& a) { return vrndpq_f32(a); }
+#elif defined (__SSE4_1__)
+ //__forceinline Vec2fa trunc( const Vec2fa& a ) { return _mm_round_ps(a, _MM_FROUND_TO_NEAREST_INT); }
+ __forceinline Vec2fa floor( const Vec2fa& a ) { return _mm_round_ps(a, _MM_FROUND_TO_NEG_INF ); }
+ __forceinline Vec2fa ceil ( const Vec2fa& a ) { return _mm_round_ps(a, _MM_FROUND_TO_POS_INF ); }
+#else
+ //__forceinline Vec2fa trunc( const Vec2fa& a ) { return Vec2fa(truncf(a.x),truncf(a.y),truncf(a.z)); }
+ __forceinline Vec2fa floor( const Vec2fa& a ) { return Vec2fa(floorf(a.x),floorf(a.y)); }
+ __forceinline Vec2fa ceil ( const Vec2fa& a ) { return Vec2fa(ceilf (a.x),ceilf (a.y)); }
+#endif
+
+ ////////////////////////////////////////////////////////////////////////////////
+ /// Output Operators
+ ////////////////////////////////////////////////////////////////////////////////
+
+ __forceinline embree_ostream operator<<(embree_ostream cout, const Vec2fa& a) {
+ return cout << "(" << a.x << ", " << a.y << ")";
+ }
+
+ typedef Vec2fa Vec2fa_t;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 13:24:41 +0000