mirror of
https://github.com/godotengine/godot.git
synced 2025-10-30 21:21:10 +00:00
110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
// Copyright 2009-2021 Intel Corporation
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
#pragma once
|
|
|
|
#include "../math/emath.h"
|
|
|
|
/* include SSE wrapper classes */
|
|
#if defined(__SSE__) || defined(__ARM_NEON)
|
|
# include "sse.h"
|
|
#endif
|
|
|
|
/* include AVX wrapper classes */
|
|
#if defined(__AVX__)
|
|
# include "avx.h"
|
|
#endif
|
|
|
|
/* include AVX512 wrapper classes */
|
|
#if defined (__AVX512F__)
|
|
# include "avx512.h"
|
|
#endif
|
|
|
|
namespace embree
|
|
{
|
|
template <int N>
|
|
__forceinline vbool<N> isfinite(const vfloat<N>& v)
|
|
{
|
|
return (v >= vfloat<N>(-std::numeric_limits<float>::max()))
|
|
& (v <= vfloat<N>( std::numeric_limits<float>::max()));
|
|
}
|
|
|
|
/* foreach unique */
|
|
template<typename vbool, typename vint, typename Closure>
|
|
__forceinline void foreach_unique(const vbool& valid0, const vint& vi, const Closure& closure)
|
|
{
|
|
vbool valid1 = valid0;
|
|
while (any(valid1)) {
|
|
const int j = int(bsf(movemask(valid1)));
|
|
const int i = vi[j];
|
|
const vbool valid2 = valid1 & (i == vi);
|
|
valid1 = andn(valid1, valid2);
|
|
closure(valid2, i);
|
|
}
|
|
}
|
|
|
|
/* returns the next unique value i in vi and the corresponding valid_i mask */
|
|
template<typename vbool, typename vint>
|
|
__forceinline int next_unique(vbool& valid, const vint& vi, /*out*/ vbool& valid_i)
|
|
{
|
|
assert(any(valid));
|
|
const int j = int(bsf(movemask(valid)));
|
|
const int i = vi[j];
|
|
valid_i = valid & (i == vi);
|
|
valid = andn(valid, valid_i);
|
|
return i;
|
|
}
|
|
|
|
/* foreach unique index */
|
|
template<typename vbool, typename vint, typename Closure>
|
|
__forceinline void foreach_unique_index(const vbool& valid0, const vint& vi, const Closure& closure)
|
|
{
|
|
vbool valid1 = valid0;
|
|
while (any(valid1)) {
|
|
const int j = int(bsf(movemask(valid1)));
|
|
const int i = vi[j];
|
|
const vbool valid2 = valid1 & (i == vi);
|
|
valid1 = andn(valid1, valid2);
|
|
closure(valid2, i, j);
|
|
}
|
|
}
|
|
|
|
/* returns the index of the next unique value i in vi and the corresponding valid_i mask */
|
|
template<typename vbool, typename vint>
|
|
__forceinline int next_unique_index(vbool& valid, const vint& vi, /*out*/ vbool& valid_i)
|
|
{
|
|
assert(any(valid));
|
|
const int j = int(bsf(movemask(valid)));
|
|
const int i = vi[j];
|
|
valid_i = valid & (i == vi);
|
|
valid = andn(valid, valid_i);
|
|
return j;
|
|
}
|
|
|
|
template<typename Closure>
|
|
__forceinline void foreach2(int x0, int x1, int y0, int y1, const Closure& closure)
|
|
{
|
|
__aligned(64) int U[2*VSIZEX];
|
|
__aligned(64) int V[2*VSIZEX];
|
|
int index = 0;
|
|
for (int y=y0; y<y1; y++) {
|
|
const bool lasty = y+1>=y1;
|
|
const vintx vy = y;
|
|
for (int x=x0; x<x1; ) { //x+=VSIZEX) {
|
|
const bool lastx = x+VSIZEX >= x1;
|
|
vintx vx = x+vintx(step);
|
|
vintx::storeu(&U[index], vx);
|
|
vintx::storeu(&V[index], vy);
|
|
const int dx = min(x1-x,VSIZEX);
|
|
index += dx;
|
|
x += dx;
|
|
if (index >= VSIZEX || (lastx && lasty)) {
|
|
const vboolx valid = vintx(step) < vintx(index);
|
|
closure(valid, vintx::load(U), vintx::load(V));
|
|
x-= max(0, index-VSIZEX);
|
|
index = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|