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blender/intern/cycles/util/util_simd.h
Sergey Sharybin 0579eaae1f Cycles: Make all #include statements relative to cycles source directory 
The idea is to make include statements more explicit and obvious where the
file is coming from, additionally reducing chance of wrong header being
picked up.

For example, it was not obvious whether bvh.h was refferring to builder
or traversal, whenter node.h is a generic graph node or a shader node
and cases like that.

Surely this might look obvious for the active developers, but after some
time of not touching the code it becomes less obvious where file is coming
from.

This was briefly mentioned in T50824 and seems @brecht is fine with such
explicitness, but need to agree with all active developers before committing
this.

Please note that this patch is lacking changes related on GPU/OpenCL
support. This will be solved if/when we all agree this is a good idea to move
forward.

Reviewers: brecht, lukasstockner97, maiself, nirved, dingto, juicyfruit, swerner

Reviewed By: lukasstockner97, maiself, nirved, dingto

Subscribers: brecht

Differential Revision: https://developer.blender.org/D2586
2017-03-29 13:41:11 +02:00

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/*
* Copyright 2011-2013 Intel Corporation
* Modifications Copyright 2014, Blender Foundation.
*
* Licensed under the Apache License, Version 2.0(the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __UTIL_SIMD_TYPES_H__
#define __UTIL_SIMD_TYPES_H__
#include <limits>
#include "util/util_debug.h"
#include "util/util_types.h"
CCL_NAMESPACE_BEGIN
#ifdef __KERNEL_SSE2__
struct sseb;
struct ssei;
struct ssef;
extern const __m128 _mm_lookupmask_ps[16];
/* Special Types */
static struct TrueTy {
__forceinline operator bool( ) const { return true; }
} True ccl_maybe_unused;
static struct FalseTy {
__forceinline operator bool( ) const { return false; }
} False ccl_maybe_unused;
static struct NegInfTy
{
__forceinline operator float ( ) const { return -std::numeric_limits<float>::infinity(); }
__forceinline operator int ( ) const { return std::numeric_limits<int>::min(); }
} neg_inf ccl_maybe_unused;
static struct PosInfTy
{
__forceinline operator float ( ) const { return std::numeric_limits<float>::infinity(); }
__forceinline operator int ( ) const { return std::numeric_limits<int>::max(); }
} inf ccl_maybe_unused, pos_inf ccl_maybe_unused;
/* Intrinsics Functions */
#if defined(__BMI__) && defined(__GNUC__)
# ifndef _tzcnt_u32
# define _tzcnt_u32 __tzcnt_u32
# endif
# ifndef _tzcnt_u64
# define _tzcnt_u64 __tzcnt_u64
# endif
#endif
#if defined(__LZCNT__)
#define _lzcnt_u32 __lzcnt32
#define _lzcnt_u64 __lzcnt64
#endif
#if defined(_WIN32) && !defined(__MINGW32__) && !defined(__clang__)
__forceinline int __popcnt(int in) {
return _mm_popcnt_u32(in);
}
#if !defined(_MSC_VER)
__forceinline unsigned int __popcnt(unsigned int in) {
return _mm_popcnt_u32(in);
}
#endif
#if defined(__KERNEL_64_BIT__)
__forceinline long long __popcnt(long long in) {
return _mm_popcnt_u64(in);
}
__forceinline size_t __popcnt(size_t in) {
return _mm_popcnt_u64(in);
}
#endif
__forceinline int __bsf(int v) {
#if defined(__KERNEL_AVX2__)
return _tzcnt_u32(v);
#else
unsigned long r = 0; _BitScanForward(&r,v); return r;
#endif
}
__forceinline unsigned int __bsf(unsigned int v) {
#if defined(__KERNEL_AVX2__)
return _tzcnt_u32(v);
#else
unsigned long r = 0; _BitScanForward(&r,v); return r;
#endif
}
__forceinline int __bsr(int v) {
unsigned long r = 0; _BitScanReverse(&r,v); return r;
}
__forceinline int __btc(int v, int i) {
long r = v; _bittestandcomplement(&r,i); return r;
}
__forceinline int __bts(int v, int i) {
long r = v; _bittestandset(&r,i); return r;
}
__forceinline int __btr(int v, int i) {
long r = v; _bittestandreset(&r,i); return r;
}
__forceinline int bitscan(int v) {
#if defined(__KERNEL_AVX2__)
return _tzcnt_u32(v);
#else
return __bsf(v);
#endif
}
__forceinline int clz(const int x)
{
#if defined(__KERNEL_AVX2__)
return _lzcnt_u32(x);
#else
if(UNLIKELY(x == 0)) return 32;
return 31 - __bsr(x);
#endif
}
__forceinline int __bscf(int& v)
{
int i = __bsf(v);
v &= v-1;
return i;
}
__forceinline unsigned int __bscf(unsigned int& v)
{
unsigned int i = __bsf(v);
v &= v-1;
return i;
}
#if defined(__KERNEL_64_BIT__)
__forceinline size_t __bsf(size_t v) {
#if defined(__KERNEL_AVX2__)
return _tzcnt_u64(v);
#else
unsigned long r = 0; _BitScanForward64(&r,v); return r;
#endif
}
__forceinline size_t __bsr(size_t v) {
unsigned long r = 0; _BitScanReverse64(&r,v); return r;
}
__forceinline size_t __btc(size_t v, size_t i) {
size_t r = v; _bittestandcomplement64((__int64*)&r,i); return r;
}
__forceinline size_t __bts(size_t v, size_t i) {
__int64 r = v; _bittestandset64(&r,i); return r;
}
__forceinline size_t __btr(size_t v, size_t i) {
__int64 r = v; _bittestandreset64(&r,i); return r;
}
__forceinline size_t bitscan(size_t v) {
#if defined(__KERNEL_AVX2__)
#if defined(__KERNEL_64_BIT__)
return _tzcnt_u64(v);
#else
return _tzcnt_u32(v);
#endif
#else
return __bsf(v);
#endif
}
__forceinline size_t __bscf(size_t& v)
{
size_t i = __bsf(v);
v &= v-1;
return i;
}
#endif /* __KERNEL_64_BIT__ */
#else /* _WIN32 */
__forceinline unsigned int __popcnt(unsigned int in) {
int r = 0; asm ("popcnt %1,%0" : "=r"(r) : "r"(in)); return r;
}
__forceinline int __bsf(int v) {
int r = 0; asm ("bsf %1,%0" : "=r"(r) : "r"(v)); return r;
}
__forceinline int __bsr(int v) {
int r = 0; asm ("bsr %1,%0" : "=r"(r) : "r"(v)); return r;
}
__forceinline int __btc(int v, int i) {
int r = 0; asm ("btc %1,%0" : "=r"(r) : "r"(i), "0"(v) : "flags" ); return r;
}
__forceinline int __bts(int v, int i) {
int r = 0; asm ("bts %1,%0" : "=r"(r) : "r"(i), "0"(v) : "flags"); return r;
}
__forceinline int __btr(int v, int i) {
int r = 0; asm ("btr %1,%0" : "=r"(r) : "r"(i), "0"(v) : "flags"); return r;
}
#if (defined(__KERNEL_64_BIT__) || defined(__APPLE__)) && !(defined(__ILP32__) && defined(__x86_64__))
__forceinline size_t __bsf(size_t v) {
size_t r = 0; asm ("bsf %1,%0" : "=r"(r) : "r"(v)); return r;
}
#endif
__forceinline unsigned int __bsf(unsigned int v) {
unsigned int r = 0; asm ("bsf %1,%0" : "=r"(r) : "r"(v)); return r;
}
__forceinline size_t __bsr(size_t v) {
size_t r = 0; asm ("bsr %1,%0" : "=r"(r) : "r"(v)); return r;
}
__forceinline size_t __btc(size_t v, size_t i) {
size_t r = 0; asm ("btc %1,%0" : "=r"(r) : "r"(i), "0"(v) : "flags" ); return r;
}
__forceinline size_t __bts(size_t v, size_t i) {
size_t r = 0; asm ("bts %1,%0" : "=r"(r) : "r"(i), "0"(v) : "flags"); return r;
}
__forceinline size_t __btr(size_t v, size_t i) {
size_t r = 0; asm ("btr %1,%0" : "=r"(r) : "r"(i), "0"(v) : "flags"); return r;
}
__forceinline int bitscan(int v) {
#if defined(__KERNEL_AVX2__)
return _tzcnt_u32(v);
#else
return __bsf(v);
#endif
}
__forceinline unsigned int bitscan(unsigned int v) {
#if defined(__KERNEL_AVX2__)
return _tzcnt_u32(v);
#else
return __bsf(v);
#endif
}
#if (defined(__KERNEL_64_BIT__) || defined(__APPLE__)) && !(defined(__ILP32__) && defined(__x86_64__))
__forceinline size_t bitscan(size_t v) {
#if defined(__KERNEL_AVX2__)
#if defined(__KERNEL_64_BIT__)
return _tzcnt_u64(v);
#else
return _tzcnt_u32(v);
#endif
#else
return __bsf(v);
#endif
}
#endif
__forceinline int clz(const int x)
{
#if defined(__KERNEL_AVX2__)
return _lzcnt_u32(x);
#else
if(UNLIKELY(x == 0)) return 32;
return 31 - __bsr(x);
#endif
}
__forceinline int __bscf(int& v)
{
int i = bitscan(v);
#if defined(__KERNEL_AVX2__)
v &= v-1;
#else
v = __btc(v,i);
#endif
return i;
}
__forceinline unsigned int __bscf(unsigned int& v)
{
unsigned int i = bitscan(v);
v &= v-1;
return i;
}
#if (defined(__KERNEL_64_BIT__) || defined(__APPLE__)) && !(defined(__ILP32__) && defined(__x86_64__))
__forceinline size_t __bscf(size_t& v)
{
size_t i = bitscan(v);
#if defined(__KERNEL_AVX2__)
v &= v-1;
#else
v = __btc(v,i);
#endif
return i;
}
#endif
#endif /* _WIN32 */
static const unsigned int BITSCAN_NO_BIT_SET_32 = 32;
static const size_t BITSCAN_NO_BIT_SET_64 = 64;
/* Emulation of SSE4 functions with SSE3 */
#if defined(__KERNEL_SSE3) && !defined(__KERNEL_SSE4__)
#define _MM_FROUND_TO_NEAREST_INT 0x00
#define _MM_FROUND_TO_NEG_INF 0x01
#define _MM_FROUND_TO_POS_INF 0x02
#define _MM_FROUND_TO_ZERO 0x03
#define _MM_FROUND_CUR_DIRECTION 0x04
#define _mm_blendv_ps __emu_mm_blendv_ps
__forceinline __m128 _mm_blendv_ps( __m128 value, __m128 input, __m128 mask ) {
return _mm_or_ps(_mm_and_ps(mask, input), _mm_andnot_ps(mask, value));
}
#define _mm_blend_ps __emu_mm_blend_ps
__forceinline __m128 _mm_blend_ps( __m128 value, __m128 input, const int mask ) {
assert(mask < 0x10); return _mm_blendv_ps(value, input, _mm_lookupmask_ps[mask]);
}
#define _mm_blendv_epi8 __emu_mm_blendv_epi8
__forceinline __m128i _mm_blendv_epi8( __m128i value, __m128i input, __m128i mask ) {
return _mm_or_si128(_mm_and_si128(mask, input), _mm_andnot_si128(mask, value));
}
#define _mm_mullo_epi32 __emu_mm_mullo_epi32
__forceinline __m128i _mm_mullo_epi32( __m128i value, __m128i input ) {
__m128i rvalue;
char* _r = (char*)(&rvalue + 1);
char* _v = (char*)(& value + 1);
char* _i = (char*)(& input + 1);
for( ssize_t i = -16 ; i != 0 ; i += 4 ) *((int32*)(_r + i)) = *((int32*)(_v + i))* *((int32*)(_i + i));
return rvalue;
}
#define _mm_min_epi32 __emu_mm_min_epi32
__forceinline __m128i _mm_min_epi32( __m128i value, __m128i input ) {
return _mm_blendv_epi8(input, value, _mm_cmplt_epi32(value, input));
}
#define _mm_max_epi32 __emu_mm_max_epi32
__forceinline __m128i _mm_max_epi32( __m128i value, __m128i input ) {
return _mm_blendv_epi8(value, input, _mm_cmplt_epi32(value, input));
}
#define _mm_extract_epi32 __emu_mm_extract_epi32
__forceinline int _mm_extract_epi32( __m128i input, const int index ) {
switch ( index ) {
case 0: return _mm_cvtsi128_si32(input);
case 1: return _mm_cvtsi128_si32(_mm_shuffle_epi32(input, _MM_SHUFFLE(1, 1, 1, 1)));
case 2: return _mm_cvtsi128_si32(_mm_shuffle_epi32(input, _MM_SHUFFLE(2, 2, 2, 2)));
case 3: return _mm_cvtsi128_si32(_mm_shuffle_epi32(input, _MM_SHUFFLE(3, 3, 3, 3)));
default: assert(false); return 0;
}
}
#define _mm_insert_epi32 __emu_mm_insert_epi32
__forceinline __m128i _mm_insert_epi32( __m128i value, int input, const int index ) {
assert(index >= 0 && index < 4); ((int*)&value)[index] = input; return value;
}
#define _mm_extract_ps __emu_mm_extract_ps
__forceinline int _mm_extract_ps( __m128 input, const int index ) {
int32* ptr = (int32*)&input; return ptr[index];
}
#define _mm_insert_ps __emu_mm_insert_ps
__forceinline __m128 _mm_insert_ps( __m128 value, __m128 input, const int index )
{ assert(index < 0x100); ((float*)&value)[(index >> 4)&0x3] = ((float*)&input)[index >> 6]; return _mm_andnot_ps(_mm_lookupmask_ps[index&0xf], value); }
#define _mm_round_ps __emu_mm_round_ps
__forceinline __m128 _mm_round_ps( __m128 value, const int flags )
{
switch ( flags )
{
case _MM_FROUND_TO_NEAREST_INT: return _mm_cvtepi32_ps(_mm_cvtps_epi32(value));
case _MM_FROUND_TO_NEG_INF : return _mm_cvtepi32_ps(_mm_cvtps_epi32(_mm_add_ps(value, _mm_set1_ps(-0.5f))));
case _MM_FROUND_TO_POS_INF : return _mm_cvtepi32_ps(_mm_cvtps_epi32(_mm_add_ps(value, _mm_set1_ps( 0.5f))));
case _MM_FROUND_TO_ZERO : return _mm_cvtepi32_ps(_mm_cvttps_epi32(value));
}
return value;
}
#ifdef _M_X64
#define _mm_insert_epi64 __emu_mm_insert_epi64
__forceinline __m128i _mm_insert_epi64( __m128i value, __int64 input, const int index ) {
assert(size_t(index) < 4); ((__int64*)&value)[index] = input; return value;
}
#define _mm_extract_epi64 __emu_mm_extract_epi64
__forceinline __int64 _mm_extract_epi64( __m128i input, const int index ) {
assert(size_t(index) < 2);
return index == 0 ? _mm_cvtsi128_si64x(input) : _mm_cvtsi128_si64x(_mm_unpackhi_epi64(input, input));
}
#endif
#endif
#else /* __KERNEL_SSE2__ */
/* This section is for utility functions which operates on non-register data
* which might be used from a non-vectorized code.
*/
ccl_device_inline int bitscan(int value)
{
assert(value != 0);
int bit = 0;
while(value >>= 1) {
++bit;
}
return bit;
}
#endif /* __KERNEL_SSE2__ */
CCL_NAMESPACE_END
#include "util/util_math.h"
#include "util/util_sseb.h"
#include "util/util_ssei.h"
#include "util/util_ssef.h"
#include "util/util_avxf.h"
#endif /* __UTIL_SIMD_TYPES_H__ */
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