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alternate matrix transpose code-path for pre-SSE4.1

This commit is contained in:
Jack Andersen 2016-07-04 12:28:59 -10:00 committed by Phillip Stephens
parent 68b5c47e25
commit e7a9c6a66b
6 changed files with 177 additions and 42 deletions
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31
CMakeLists.txt
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@ -6,11 +6,7 @@ if (NOT DEFINED ATHENA_INCLUDE_DIR)
endif()
include_directories(include ${ATHENA_INCLUDE_DIR})
if(NOT MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.1 -msse4.2 -std=c++14")
endif()
add_library(zeus
set(SOURCES
src/CVector3f.cpp
src/Math.cpp
src/CQuaternion.cpp
@ -23,7 +19,30 @@ add_library(zeus
src/CRectangle.cpp
src/CVector4f.cpp
src/CMatrix4f.cpp
src/CAABox.cpp
src/CAABox.cpp)
# SSELegacy.cpp compiled separately to escape the effects of link-time optimization
if(NOT MSVC)
set_source_files_properties(${SOURCES} PROPERTIES COMPILE_FLAGS "-msse4.1 -msse4.2 -std=c++14")
string(REPLACE "-flto" "" CUSTOM_FLAGS ${CMAKE_CXX_FLAGS})
set(CUSTOM_FLAGS "${CUSTOM_FLAGS} -O3 -msse3 -std=c++14")
else()
string(REPLACE "/GL" "" CUSTOM_FLAGS ${CMAKE_CXX_FLAGS})
endif()
separate_arguments(CUSTOM_FLAGS UNIX_COMMAND ${CUSTOM_FLAGS})
add_custom_command(
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/src/SSELegacy.o
COMMAND ${CMAKE_CXX_COMPILER}
ARGS ${CUSTOM_FLAGS} -c ${CMAKE_CURRENT_SOURCE_DIR}/src/SSELegacy.cpp
-o ${CMAKE_CURRENT_BINARY_DIR}/src/SSELegacy.o
-I ${CMAKE_CURRENT_SOURCE_DIR}/include
-I ${ATHENA_INCLUDE_DIR}
MAIN_DEPENDENCY src/SSELegacy.cpp)
add_library(zeus
${SOURCES}
${CMAKE_CURRENT_BINARY_DIR}/src/SSELegacy.o
include/zeus/Math.hpp
include/zeus/CQuaternion.hpp

2
include/zeus/CMatrix3f.hpp
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@ -137,7 +137,9 @@ public:
static const CMatrix3f skIdentityMatrix3f;
void transpose();
void transposeSSE3();
CMatrix3f transposed() const;
CMatrix3f transposedSSE3() const;
inline void invert() {*this = inverted();}
CMatrix3f inverted() const;

37
include/zeus/CMatrix4f.hpp
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@ -96,41 +96,8 @@ public:
return vec[i];
}
inline CMatrix4f transposed()
{
CMatrix4f ret;
#if __SSE__
__m128 T0 = _mm_unpacklo_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T2 = _mm_unpacklo_ps(vec[2].mVec128, vec[3].mVec128);
__m128 T1 = _mm_unpackhi_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T3 = _mm_unpackhi_ps(vec[2].mVec128, vec[3].mVec128);
ret.vec[0].mVec128 = _mm_movelh_ps(T0, T2);
ret.vec[1].mVec128 = _mm_movehl_ps(T2, T0);
ret.vec[2].mVec128 = _mm_movelh_ps(T1, T3);
ret.vec[3].mVec128 = _mm_movehl_ps(T3, T1);
#else
ret.m[0][0] = m[0][0];
ret.m[1][0] = m[0][1];
ret.m[2][0] = m[0][2];
ret.m[3][0] = m[0][3];
ret.m[0][1] = m[1][0];
ret.m[1][1] = m[1][1];
ret.m[2][1] = m[1][2];
ret.m[3][1] = m[1][3];
ret.m[0][2] = m[2][0];
ret.m[1][2] = m[2][1];
ret.m[2][2] = m[2][2];
ret.m[3][2] = m[2][3];
ret.m[0][3] = m[3][0];
ret.m[1][3] = m[3][1];
ret.m[2][3] = m[3][2];
ret.m[3][3] = m[3][3];
#endif
return ret;
}
CMatrix4f transposed() const;
CMatrix4f transposedSSE3() const;
inline CVector3f multiplyOneOverW(const CVector3f& point) const
{

7
src/CMatrix3f.cpp
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@ -33,6 +33,11 @@ CMatrix3f::CMatrix3f(const CQuaternion& quat)
void CMatrix3f::transpose()
{
#if __SSE__
if (!cpuFeatures().SSE41)
{
transposeSSE3();
return;
}
__m128 zero = _mm_xor_ps(vec[0].mVec128, vec[0].mVec128);
__m128 T0 = _mm_unpacklo_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T2 = _mm_unpacklo_ps(vec[2].mVec128, zero);
@ -61,6 +66,8 @@ void CMatrix3f::transpose()
CMatrix3f CMatrix3f::transposed() const
{
#if __SSE__
if (!cpuFeatures().SSE41)
return transposedSSE3();
__m128 zero = _mm_xor_ps(vec[0].mVec128, vec[0].mVec128);
__m128 T0 = _mm_unpacklo_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T2 = _mm_unpacklo_ps(vec[2].mVec128, zero);

45
src/CMatrix4f.cpp
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@ -1,3 +1,46 @@
#include "zeus/CMatrix4f.hpp"
const zeus::CMatrix4f zeus::CMatrix4f::skIdentityMatrix4f = CMatrix4f();
namespace zeus
{
const CMatrix4f CMatrix4f::skIdentityMatrix4f = CMatrix4f();
CMatrix4f CMatrix4f::transposed() const
{
CMatrix4f ret;
#if __SSE__
if (!cpuFeatures().SSE41)
return transposedSSE3();
__m128 T0 = _mm_unpacklo_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T2 = _mm_unpacklo_ps(vec[2].mVec128, vec[3].mVec128);
__m128 T1 = _mm_unpackhi_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T3 = _mm_unpackhi_ps(vec[2].mVec128, vec[3].mVec128);
ret.vec[0].mVec128 = _mm_movelh_ps(T0, T2);
ret.vec[1].mVec128 = _mm_movehl_ps(T2, T0);
ret.vec[2].mVec128 = _mm_movelh_ps(T1, T3);
ret.vec[3].mVec128 = _mm_movehl_ps(T3, T1);
#else
ret.m[0][0] = m[0][0];
ret.m[1][0] = m[0][1];
ret.m[2][0] = m[0][2];
ret.m[3][0] = m[0][3];
ret.m[0][1] = m[1][0];
ret.m[1][1] = m[1][1];
ret.m[2][1] = m[1][2];
ret.m[3][1] = m[1][3];
ret.m[0][2] = m[2][0];
ret.m[1][2] = m[2][1];
ret.m[2][2] = m[2][2];
ret.m[3][2] = m[2][3];
ret.m[0][3] = m[3][0];
ret.m[1][3] = m[3][1];
ret.m[2][3] = m[3][2];
ret.m[3][3] = m[3][3];
#endif
return ret;
}
}

97
src/SSELegacy.cpp Normal file
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@ -0,0 +1,97 @@
#include "zeus/CMatrix3f.hpp"
#include "zeus/CMatrix4f.hpp"
namespace zeus
{
void CMatrix3f::transposeSSE3()
{
#if __SSE__
__m128 zero = _mm_xor_ps(vec[0].mVec128, vec[0].mVec128);
__m128 T0 = _mm_unpacklo_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T2 = _mm_unpacklo_ps(vec[2].mVec128, zero);
__m128 T1 = _mm_unpackhi_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T3 = _mm_unpackhi_ps(vec[2].mVec128, zero);
vec[0].mVec128 = _mm_movelh_ps(T0, T2);
vec[1].mVec128 = _mm_movehl_ps(T2, T0);
vec[2].mVec128 = _mm_movelh_ps(T1, T3);
#else
float tmp;
tmp = m[0][1];
m[0][1] = m[1][0];
m[1][0] = tmp;
tmp = m[0][2];
m[0][2] = m[2][0];
m[2][0] = tmp;
tmp = m[1][2];
m[1][2] = m[2][1];
m[2][1] = tmp;
#endif
}
CMatrix3f CMatrix3f::transposedSSE3() const
{
#if __SSE__
__m128 zero = _mm_xor_ps(vec[0].mVec128, vec[0].mVec128);
__m128 T0 = _mm_unpacklo_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T2 = _mm_unpacklo_ps(vec[2].mVec128, zero);
__m128 T1 = _mm_unpackhi_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T3 = _mm_unpackhi_ps(vec[2].mVec128, zero);
return CMatrix3f(_mm_movelh_ps(T0, T2), _mm_movehl_ps(T2, T0), _mm_movelh_ps(T1, T3));
#else
CMatrix3f ret(*this);
float tmp;
tmp = ret.m[0][1];
ret.m[0][1] = ret.m[1][0];
ret.m[1][0] = tmp;
tmp = m[0][2];
ret.m[0][2] = ret.m[2][0];
ret.m[2][0] = tmp;
tmp = m[1][2];
ret.m[1][2] = ret.m[2][1];
ret.m[2][1] = tmp;
return ret;
#endif
}
CMatrix4f CMatrix4f::transposedSSE3() const
{
#if __SSE__
CMatrix3f ret;
__m128 T0 = _mm_unpacklo_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T2 = _mm_unpacklo_ps(vec[2].mVec128, vec[3].mVec128);
__m128 T1 = _mm_unpackhi_ps(vec[0].mVec128, vec[1].mVec128);
__m128 T3 = _mm_unpackhi_ps(vec[2].mVec128, vec[3].mVec128);
ret.vec[0].mVec128 = _mm_movelh_ps(T0, T2);
ret.vec[1].mVec128 = _mm_movehl_ps(T2, T0);
ret.vec[2].mVec128 = _mm_movelh_ps(T1, T3);
ret.vec[3].mVec128 = _mm_movehl_ps(T3, T1);
return ret;
#else
float tmp;
CMatrix3f ret(*this);
tmp = ret.m[0][1];
ret.m[0][1] = ret.m[1][0];
ret.m[1][0] = tmp;
tmp = m[0][2];
ret.m[0][2] = ret.m[2][0];
ret.m[2][0] = tmp;
tmp = m[1][2];
ret.m[1][2] = ret.m[2][1];
ret.m[2][1] = tmp;
return ret;
#endif
}
}