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xnamathconvert.inl
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xnamathconvert.inl
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/*++
Copyright (c) Microsoft Corporation. All rights reserved.
Module Name:
xnamathconvert.inl
Abstract:
XNA math library for Windows and Xbox 360: Conversion, loading, and storing functions.
--*/
#if defined(_MSC_VER) && (_MSC_VER > 1000)
#pragma once
#endif
#ifndef __XNAMATHCONVERT_INL__
#define __XNAMATHCONVERT_INL__
#define XM_PACK_FACTOR (FLOAT)(1 << 22)
#define XM_UNPACK_FACTOR_UNSIGNED (FLOAT)(1 << 23)
#define XM_UNPACK_FACTOR_SIGNED XM_PACK_FACTOR
#define XM_UNPACK_UNSIGNEDN_OFFSET(BitsX, BitsY, BitsZ, BitsW) \
{-XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsX)) - 1), \
-XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsY)) - 1), \
-XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsZ)) - 1), \
-XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsW)) - 1)}
#define XM_UNPACK_UNSIGNEDN_SCALE(BitsX, BitsY, BitsZ, BitsW) \
{XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsX)) - 1), \
XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsY)) - 1), \
XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsZ)) - 1), \
XM_UNPACK_FACTOR_UNSIGNED / (FLOAT)((1 << (BitsW)) - 1)}
#define XM_UNPACK_SIGNEDN_SCALE(BitsX, BitsY, BitsZ, BitsW) \
{-XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsX) - 1)) - 1), \
-XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsY) - 1)) - 1), \
-XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsZ) - 1)) - 1), \
-XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsW) - 1)) - 1)}
//#define XM_UNPACK_SIGNEDN_OFFSET(BitsX, BitsY, BitsZ, BitsW) \
// {-XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsX) - 1)) - 1) * 3.0f, \
// -XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsY) - 1)) - 1) * 3.0f, \
// -XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsZ) - 1)) - 1) * 3.0f, \
// -XM_UNPACK_FACTOR_SIGNED / (FLOAT)((1 << ((BitsW) - 1)) - 1) * 3.0f}
#define XM_PACK_UNSIGNEDN_SCALE(BitsX, BitsY, BitsZ, BitsW) \
{-(FLOAT)((1 << (BitsX)) - 1) / XM_PACK_FACTOR, \
-(FLOAT)((1 << (BitsY)) - 1) / XM_PACK_FACTOR, \
-(FLOAT)((1 << (BitsZ)) - 1) / XM_PACK_FACTOR, \
-(FLOAT)((1 << (BitsW)) - 1) / XM_PACK_FACTOR}
#define XM_PACK_SIGNEDN_SCALE(BitsX, BitsY, BitsZ, BitsW) \
{-(FLOAT)((1 << ((BitsX) - 1)) - 1) / XM_PACK_FACTOR, \
-(FLOAT)((1 << ((BitsY) - 1)) - 1) / XM_PACK_FACTOR, \
-(FLOAT)((1 << ((BitsZ) - 1)) - 1) / XM_PACK_FACTOR, \
-(FLOAT)((1 << ((BitsW) - 1)) - 1) / XM_PACK_FACTOR}
#define XM_PACK_OFFSET XMVectorSplatConstant(3, 0)
//#define XM_UNPACK_OFFSET XM_PACK_OFFSET
/****************************************************************************
*
* Data conversion
*
****************************************************************************/
//------------------------------------------------------------------------------
XMFINLINE FLOAT XMConvertHalfToFloat
(
HALF Value
)
{
#if defined(_XM_NO_INTRINSICS_) || defined(_XM_SSE_INTRINSICS_)
UINT Mantissa;
UINT Exponent;
UINT Result;
Mantissa = (UINT)(Value & 0x03FF);
if ((Value & 0x7C00) != 0) // The value is normalized
{
Exponent = (UINT)((Value >> 10) & 0x1F);
}
else if (Mantissa != 0) // The value is denormalized
{
// Normalize the value in the resulting float
Exponent = 1;
do
{
Exponent--;
Mantissa <<= 1;
} while ((Mantissa & 0x0400) == 0);
Mantissa &= 0x03FF;
}
else // The value is zero
{
Exponent = (UINT)-112;
}
Result = ((Value & 0x8000) << 16) | // Sign
((Exponent + 112) << 23) | // Exponent
(Mantissa << 13); // Mantissa
return *(FLOAT*)&Result;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif
}
//------------------------------------------------------------------------------
XMINLINE FLOAT* XMConvertHalfToFloatStream
(
FLOAT* pOutputStream,
UINT OutputStride,
CONST HALF* pInputStream,
UINT InputStride,
UINT HalfCount
)
{
#if defined(_XM_NO_INTRINSICS_) || defined(_XM_SSE_INTRINSICS_)
UINT i;
BYTE* pHalf = (BYTE*)pInputStream;
BYTE* pFloat = (BYTE*)pOutputStream;
XMASSERT(pOutputStream);
XMASSERT(pInputStream);
for (i = 0; i < HalfCount; i++)
{
*(FLOAT*)pFloat = XMConvertHalfToFloat(*(HALF*)pHalf);
pHalf += InputStride;
pFloat += OutputStride;
}
return pOutputStream;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE HALF XMConvertFloatToHalf
(
FLOAT Value
)
{
#if defined(_XM_NO_INTRINSICS_) || defined(_XM_SSE_INTRINSICS_)
UINT Result;
UINT IValue = ((UINT *)(&Value))[0];
UINT Sign = (IValue & 0x80000000U) >> 16U;
IValue = IValue & 0x7FFFFFFFU; // Hack off the sign
if (IValue > 0x47FFEFFFU)
{
// The number is too large to be represented as a half. Saturate to infinity.
Result = 0x7FFFU;
}
else
{
if (IValue < 0x38800000U)
{
// The number is too small to be represented as a normalized half.
// Convert it to a denormalized value.
UINT Shift = 113U - (IValue >> 23U);
IValue = (0x800000U | (IValue & 0x7FFFFFU)) >> Shift;
}
else
{
// Rebias the exponent to represent the value as a normalized half.
IValue += 0xC8000000U;
}
Result = ((IValue + 0x0FFFU + ((IValue >> 13U) & 1U)) >> 13U)&0x7FFFU;
}
return (HALF)(Result|Sign);
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif
}
//------------------------------------------------------------------------------
XMINLINE HALF* XMConvertFloatToHalfStream
(
HALF* pOutputStream,
UINT OutputStride,
CONST FLOAT* pInputStream,
UINT InputStride,
UINT FloatCount
)
{
#if defined(_XM_NO_INTRINSICS_) || defined(_XM_SSE_INTRINSICS_)
UINT i;
BYTE* pFloat = (BYTE*)pInputStream;
BYTE* pHalf = (BYTE*)pOutputStream;
XMASSERT(pOutputStream);
XMASSERT(pInputStream);
for (i = 0; i < FloatCount; i++)
{
*(HALF*)pHalf = XMConvertFloatToHalf(*(FLOAT*)pFloat);
pFloat += InputStride;
pHalf += OutputStride;
}
return pOutputStream;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
#if defined(_XM_NO_INTRINSICS_) || defined(_XM_SSE_INTRINSICS_)
// For VMX128, these routines are all defines in the main header
#pragma warning(push)
#pragma warning(disable:4701) // Prevent warnings about 'Result' potentially being used without having been initialized
XMINLINE XMVECTOR XMConvertVectorIntToFloat
(
FXMVECTOR VInt,
UINT DivExponent
)
{
#if defined(_XM_NO_INTRINSICS_)
UINT ElementIndex;
FLOAT fScale;
XMVECTOR Result;
XMASSERT(DivExponent<32);
fScale = 1.0f / (FLOAT)(1U << DivExponent);
ElementIndex = 0;
do {
INT iTemp = (INT)VInt.vector4_u32[ElementIndex];
Result.vector4_f32[ElementIndex] = ((FLOAT)iTemp) * fScale;
} while (++ElementIndex<4);
return Result;
#else // _XM_SSE_INTRINSICS_
XMASSERT(DivExponent<32);
// Convert to floats
XMVECTOR vResult = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&VInt)[0]);
// Convert DivExponent into 1.0f/(1<<DivExponent)
UINT uScale = 0x3F800000U - (DivExponent << 23);
// Splat the scalar value
__m128i vScale = _mm_set1_epi32(uScale);
vResult = _mm_mul_ps(vResult,reinterpret_cast<const __m128 *>(&vScale)[0]);
return vResult;
#endif
}
//------------------------------------------------------------------------------
XMINLINE XMVECTOR XMConvertVectorFloatToInt
(
FXMVECTOR VFloat,
UINT MulExponent
)
{
#if defined(_XM_NO_INTRINSICS_)
UINT ElementIndex;
XMVECTOR Result;
FLOAT fScale;
XMASSERT(MulExponent<32);
// Get the scalar factor.
fScale = (FLOAT)(1U << MulExponent);
ElementIndex = 0;
do {
INT iResult;
FLOAT fTemp = VFloat.vector4_f32[ElementIndex]*fScale;
if (fTemp <= -(65536.0f*32768.0f)) {
iResult = (-0x7FFFFFFF)-1;
} else if (fTemp > (65536.0f*32768.0f)-128.0f) {
iResult = 0x7FFFFFFF;
} else {
iResult = (INT)fTemp;
}
Result.vector4_u32[ElementIndex] = (UINT)iResult;
} while (++ElementIndex<4);
return Result;
#else // _XM_SSE_INTRINSICS_
XMASSERT(MulExponent<32);
static const XMVECTORF32 MaxInt = {65536.0f*32768.0f-128.0f,65536.0f*32768.0f-128.0f,65536.0f*32768.0f-128.0f,65536.0f*32768.0f-128.0f};
XMVECTOR vResult = _mm_set_ps1((FLOAT)(1U << MulExponent));
vResult = _mm_mul_ps(vResult,VFloat);
// In case of positive overflow, detect it
XMVECTOR vOverflow = _mm_cmpgt_ps(vResult,MaxInt);
// Float to int conversion
__m128i vResulti = _mm_cvttps_epi32(vResult);
// If there was positive overflow, set to 0x7FFFFFFF
vResult = _mm_and_ps(vOverflow,g_XMAbsMask);
vOverflow = _mm_andnot_ps(vOverflow,reinterpret_cast<const __m128 *>(&vResulti)[0]);
vOverflow = _mm_or_ps(vOverflow,vResult);
return vOverflow;
#endif
}
//------------------------------------------------------------------------------
XMINLINE XMVECTOR XMConvertVectorUIntToFloat
(
FXMVECTOR VUInt,
UINT DivExponent
)
{
#if defined(_XM_NO_INTRINSICS_)
UINT ElementIndex;
FLOAT fScale;
XMVECTOR Result;
XMASSERT(DivExponent<32);
fScale = 1.0f / (FLOAT)(1U << DivExponent);
ElementIndex = 0;
do {
Result.vector4_f32[ElementIndex] = (FLOAT)VUInt.vector4_u32[ElementIndex] * fScale;
} while (++ElementIndex<4);
return Result;
#else // _XM_SSE_INTRINSICS_
XMASSERT(DivExponent<32);
static const XMVECTORF32 FixUnsigned = {32768.0f*65536.0f,32768.0f*65536.0f,32768.0f*65536.0f,32768.0f*65536.0f};
// For the values that are higher than 0x7FFFFFFF, a fixup is needed
// Determine which ones need the fix.
XMVECTOR vMask = _mm_and_ps(VUInt,g_XMNegativeZero);
// Force all values positive
XMVECTOR vResult = _mm_xor_ps(VUInt,vMask);
// Convert to floats
vResult = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&vResult)[0]);
// Convert 0x80000000 -> 0xFFFFFFFF
__m128i iMask = _mm_srai_epi32(reinterpret_cast<const __m128i *>(&vMask)[0],31);
// For only the ones that are too big, add the fixup
vMask = _mm_and_ps(reinterpret_cast<const __m128 *>(&iMask)[0],FixUnsigned);
vResult = _mm_add_ps(vResult,vMask);
// Convert DivExponent into 1.0f/(1<<DivExponent)
UINT uScale = 0x3F800000U - (DivExponent << 23);
// Splat
iMask = _mm_set1_epi32(uScale);
vResult = _mm_mul_ps(vResult,reinterpret_cast<const __m128 *>(&iMask)[0]);
return vResult;
#endif
}
//------------------------------------------------------------------------------
XMINLINE XMVECTOR XMConvertVectorFloatToUInt
(
FXMVECTOR VFloat,
UINT MulExponent
)
{
#if defined(_XM_NO_INTRINSICS_)
UINT ElementIndex;
XMVECTOR Result;
FLOAT fScale;
XMASSERT(MulExponent<32);
// Get the scalar factor.
fScale = (FLOAT)(1U << MulExponent);
ElementIndex = 0;
do {
UINT uResult;
FLOAT fTemp = VFloat.vector4_f32[ElementIndex]*fScale;
if (fTemp <= 0.0f) {
uResult = 0;
} else if (fTemp >= (65536.0f*65536.0f)) {
uResult = 0xFFFFFFFFU;
} else {
uResult = (UINT)fTemp;
}
Result.vector4_u32[ElementIndex] = uResult;
} while (++ElementIndex<4);
return Result;
#else // _XM_SSE_INTRINSICS_
XMASSERT(MulExponent<32);
static const XMVECTORF32 MaxUInt = {65536.0f*65536.0f-256.0f,65536.0f*65536.0f-256.0f,65536.0f*65536.0f-256.0f,65536.0f*65536.0f-256.0f};
static const XMVECTORF32 UnsignedFix = {32768.0f*65536.0f,32768.0f*65536.0f,32768.0f*65536.0f,32768.0f*65536.0f};
XMVECTOR vResult = _mm_set_ps1(static_cast<float>(1U << MulExponent));
vResult = _mm_mul_ps(vResult,VFloat);
// Clamp to >=0
vResult = _mm_max_ps(vResult,g_XMZero);
// Any numbers that are too big, set to 0xFFFFFFFFU
XMVECTOR vOverflow = _mm_cmpgt_ps(vResult,MaxUInt);
XMVECTOR vValue = UnsignedFix;
// Too large for a signed integer?
XMVECTOR vMask = _mm_cmpge_ps(vResult,vValue);
// Zero for number's lower than 0x80000000, 32768.0f*65536.0f otherwise
vValue = _mm_and_ps(vValue,vMask);
// Perform fixup only on numbers too large (Keeps low bit precision)
vResult = _mm_sub_ps(vResult,vValue);
__m128i vResulti = _mm_cvttps_epi32(vResult);
// Convert from signed to unsigned pnly if greater than 0x80000000
vMask = _mm_and_ps(vMask,g_XMNegativeZero);
vResult = _mm_xor_ps(reinterpret_cast<const __m128 *>(&vResulti)[0],vMask);
// On those that are too large, set to 0xFFFFFFFF
vResult = _mm_or_ps(vResult,vOverflow);
return vResult;
#endif
}
#pragma warning(pop)
#endif // _XM_NO_INTRINSICS_ || _XM_SSE_INTRINSICS_
/****************************************************************************
*
* Vector and matrix load operations
*
****************************************************************************/
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadInt(CONST UINT* pSource)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 3) == 0);
V.vector4_u32[0] = *pSource;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 3) == 0);
return _mm_load_ss( (const float*)pSource );
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadFloat(CONST FLOAT* pSource)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 3) == 0);
V.vector4_f32[0] = *pSource;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 3) == 0);
return _mm_load_ss( pSource );
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadInt2
(
CONST UINT* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
V.vector4_u32[0] = pSource[0];
V.vector4_u32[1] = pSource[1];
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
__m128 x = _mm_load_ss( (const float*)pSource );
__m128 y = _mm_load_ss( (const float*)(pSource+1) );
return _mm_unpacklo_ps( x, y );
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadInt2A
(
CONST UINT* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 0xF) == 0);
V.vector4_u32[0] = pSource[0];
V.vector4_u32[1] = pSource[1];
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 0xF) == 0);
__m128i V = _mm_loadl_epi64( (const __m128i*)pSource );
return reinterpret_cast<__m128 *>(&V)[0];
#else // _XM_VMX128_INTRINSICS_
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadFloat2
(
CONST XMFLOAT2* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
((UINT *)(&V.vector4_f32[0]))[0] = ((const UINT *)(&pSource->x))[0];
((UINT *)(&V.vector4_f32[1]))[0] = ((const UINT *)(&pSource->y))[0];
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
__m128 x = _mm_load_ss( &pSource->x );
__m128 y = _mm_load_ss( &pSource->y );
return _mm_unpacklo_ps( x, y );
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadFloat2A
(
CONST XMFLOAT2A* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 0xF) == 0);
V.vector4_f32[0] = pSource->x;
V.vector4_f32[1] = pSource->y;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 0xF) == 0);
__m128i V = _mm_loadl_epi64( (const __m128i*)pSource );
return reinterpret_cast<__m128 *>(&V)[0];
#else // _XM_VMX128_INTRINSICS_
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadHalf2
(
CONST XMHALF2* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMASSERT(pSource);
{
XMVECTOR vResult = {
XMConvertHalfToFloat(pSource->x),
XMConvertHalfToFloat(pSource->y),
0.0f,
0.0f
};
return vResult;
}
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMVECTOR vResult = {
XMConvertHalfToFloat(pSource->x),
XMConvertHalfToFloat(pSource->y),
0.0f,
0.0f
};
return vResult;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadShortN2
(
CONST XMSHORTN2* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(pSource->x != -32768);
XMASSERT(pSource->y != -32768);
{
XMVECTOR vResult = {
(FLOAT)pSource->x * (1.0f/32767.0f),
(FLOAT)pSource->y * (1.0f/32767.0f),
0.0f,
0.0f
};
return vResult;
}
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(pSource->x != -32768);
XMASSERT(pSource->y != -32768);
// Splat the two shorts in all four entries (WORD alignment okay,
// DWORD alignment preferred)
__m128 vTemp = _mm_load_ps1(reinterpret_cast<const float *>(&pSource->x));
// Mask x&0xFFFF, y&0xFFFF0000,z&0,w&0
vTemp = _mm_and_ps(vTemp,g_XMMaskX16Y16);
// x needs to be sign extended
vTemp = _mm_xor_ps(vTemp,g_XMFlipX16Y16);
// Convert to floating point numbers
vTemp = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&vTemp)[0]);
// x - 0x8000 to undo the signed order.
vTemp = _mm_add_ps(vTemp,g_XMFixX16Y16);
// Convert 0-32767 to 0.0f-1.0f
return _mm_mul_ps(vTemp,g_XMNormalizeX16Y16);
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadShort2
(
CONST XMSHORT2* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
XMASSERT(pSource->x != -32768);
XMASSERT(pSource->y != -32768);
V.vector4_f32[0] = (FLOAT)pSource->x;
V.vector4_f32[1] = (FLOAT)pSource->y;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(pSource->x != -32768);
XMASSERT(pSource->y != -32768);
// Splat the two shorts in all four entries (WORD alignment okay,
// DWORD alignment preferred)
__m128 vTemp = _mm_load_ps1(reinterpret_cast<const float *>(&pSource->x));
// Mask x&0xFFFF, y&0xFFFF0000,z&0,w&0
vTemp = _mm_and_ps(vTemp,g_XMMaskX16Y16);
// x needs to be sign extended
vTemp = _mm_xor_ps(vTemp,g_XMFlipX16Y16);
// Convert to floating point numbers
vTemp = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&vTemp)[0]);
// x - 0x8000 to undo the signed order.
vTemp = _mm_add_ps(vTemp,g_XMFixX16Y16);
// Y is 65536 too large
return _mm_mul_ps(vTemp,g_XMFixupY16);
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadUShortN2
(
CONST XMUSHORTN2* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
V.vector4_f32[0] = (FLOAT)pSource->x / 65535.0f;
V.vector4_f32[1] = (FLOAT)pSource->y / 65535.0f;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
static const XMVECTORF32 FixupY16 = {1.0f/65535.0f,1.0f/(65535.0f*65536.0f),0.0f,0.0f};
static const XMVECTORF32 FixaddY16 = {0,32768.0f*65536.0f,0,0};
XMASSERT(pSource);
// Splat the two shorts in all four entries (WORD alignment okay,
// DWORD alignment preferred)
__m128 vTemp = _mm_load_ps1(reinterpret_cast<const float *>(&pSource->x));
// Mask x&0xFFFF, y&0xFFFF0000,z&0,w&0
vTemp = _mm_and_ps(vTemp,g_XMMaskX16Y16);
// y needs to be sign flipped
vTemp = _mm_xor_ps(vTemp,g_XMFlipY);
// Convert to floating point numbers
vTemp = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&vTemp)[0]);
// y + 0x8000 to undo the signed order.
vTemp = _mm_add_ps(vTemp,FixaddY16);
// Y is 65536 times too large
vTemp = _mm_mul_ps(vTemp,FixupY16);
return vTemp;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadUShort2
(
CONST XMUSHORT2* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
V.vector4_f32[0] = (FLOAT)pSource->x;
V.vector4_f32[1] = (FLOAT)pSource->y;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
static const XMVECTORF32 FixaddY16 = {0,32768.0f,0,0};
XMASSERT(pSource);
// Splat the two shorts in all four entries (WORD alignment okay,
// DWORD alignment preferred)
__m128 vTemp = _mm_load_ps1(reinterpret_cast<const float *>(&pSource->x));
// Mask x&0xFFFF, y&0xFFFF0000,z&0,w&0
vTemp = _mm_and_ps(vTemp,g_XMMaskX16Y16);
// y needs to be sign flipped
vTemp = _mm_xor_ps(vTemp,g_XMFlipY);
// Convert to floating point numbers
vTemp = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&vTemp)[0]);
// Y is 65536 times too large
vTemp = _mm_mul_ps(vTemp,g_XMFixupY16);
// y + 0x8000 to undo the signed order.
vTemp = _mm_add_ps(vTemp,FixaddY16);
return vTemp;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadInt3
(
CONST UINT* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
V.vector4_u32[0] = pSource[0];
V.vector4_u32[1] = pSource[1];
V.vector4_u32[2] = pSource[2];
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
#ifdef _XM_ISVS2005_
__m128i V = _mm_set_epi32( 0, *(pSource+2), *(pSource+1), *pSource );
return reinterpret_cast<__m128 *>(&V)[0];
#else
__m128 x = _mm_load_ss( (const float*)pSource );
__m128 y = _mm_load_ss( (const float*)(pSource+1) );
__m128 z = _mm_load_ss( (const float*)(pSource+2) );
__m128 xy = _mm_unpacklo_ps( x, y );
return _mm_movelh_ps( xy, z );
#endif // !_XM_ISVS2005_
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadInt3A
(
CONST UINT* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 0xF) == 0);
V.vector4_u32[0] = pSource[0];
V.vector4_u32[1] = pSource[1];
V.vector4_u32[2] = pSource[2];
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
// Reads an extra integer that is 'undefined'
__m128i V = _mm_load_si128( (const __m128i*)pSource );
return reinterpret_cast<__m128 *>(&V)[0];
#else // _XM_VMX128_INTRINSICS_
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadFloat3
(
CONST XMFLOAT3* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
((UINT *)(&V.vector4_f32[0]))[0] = ((const UINT *)(&pSource->x))[0];
((UINT *)(&V.vector4_f32[1]))[0] = ((const UINT *)(&pSource->y))[0];
((UINT *)(&V.vector4_f32[2]))[0] = ((const UINT *)(&pSource->z))[0];
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
#ifdef _XM_ISVS2005_
// This reads 1 floats past the memory that should be ignored.
// Need to continue to do this for VS 2005 due to compiler issue but prefer new method
// to avoid triggering issues with memory debug tools (like AV)
return _mm_loadu_ps( &pSource->x );
#else
__m128 x = _mm_load_ss( &pSource->x );
__m128 y = _mm_load_ss( &pSource->y );
__m128 z = _mm_load_ss( &pSource->z );
__m128 xy = _mm_unpacklo_ps( x, y );
return _mm_movelh_ps( xy, z );
#endif // !_XM_ISVS2005_
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadFloat3A
(
CONST XMFLOAT3A* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 0xF) == 0);
V.vector4_f32[0] = pSource->x;
V.vector4_f32[1] = pSource->y;
V.vector4_f32[2] = pSource->z;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
XMASSERT(((UINT_PTR)pSource & 0xF) == 0);
// This reads 1 floats past the memory that should be ignored.
return _mm_load_ps( &pSource->x );
#else // _XM_VMX128_INTRINSICS_
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadUHenDN3
(
CONST XMUHENDN3* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
UINT Element;
XMASSERT(pSource);
Element = pSource->v & 0x7FF;
V.vector4_f32[0] = (FLOAT)Element / 2047.0f;
Element = (pSource->v >> 11) & 0x7FF;
V.vector4_f32[1] = (FLOAT)Element / 2047.0f;
Element = (pSource->v >> 22) & 0x3FF;
V.vector4_f32[2] = (FLOAT)Element / 1023.0f;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
static const XMVECTORF32 UHenDN3Mul = {1.0f/2047.0f,1.0f/(2047.0f*2048.0f),1.0f/(1023.0f*2048.0f*2048.0f),0};
XMASSERT(pSource);
// Get the 32 bit value and splat it
XMVECTOR vResult = _mm_load_ps1(reinterpret_cast<const float *>(&pSource->v));
// Mask off x, y and z
vResult = _mm_and_ps(vResult,g_XMMaskHenD3);
// Convert x and y to unsigned
vResult = _mm_xor_ps(vResult,g_XMFlipZ);
// Convert to float
vResult = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&vResult)[0]);
// Convert x and y back to signed
vResult = _mm_add_ps(vResult,g_XMAddUHenD3);
// Normalize x,y and z to -1.0f-1.0f
vResult = _mm_mul_ps(vResult,UHenDN3Mul);
return vResult;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadUHenD3
(
CONST XMUHEND3* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
UINT Element;
XMASSERT(pSource);
Element = pSource->v & 0x7FF;
V.vector4_f32[0] = (FLOAT)Element;
Element = (pSource->v >> 11) & 0x7FF;
V.vector4_f32[1] = (FLOAT)Element;
Element = (pSource->v >> 22) & 0x3FF;
V.vector4_f32[2] = (FLOAT)Element;
return V;
#elif defined(_XM_SSE_INTRINSICS_)
XMASSERT(pSource);
// Get the 32 bit value and splat it
XMVECTOR vResult = _mm_load_ps1(reinterpret_cast<const float *>(&pSource->v));
// Mask off x, y and z
vResult = _mm_and_ps(vResult,g_XMMaskHenD3);
// Convert x and y to unsigned
vResult = _mm_xor_ps(vResult,g_XMFlipZ);
// Convert to float
vResult = _mm_cvtepi32_ps(reinterpret_cast<const __m128i *>(&vResult)[0]);
// Convert x and y back to signed
vResult = _mm_add_ps(vResult,g_XMAddUHenD3);
// Normalize x and y to -1024-1023.0f and z to -512-511.0f
vResult = _mm_mul_ps(vResult,g_XMMulHenD3);
return vResult;
#elif defined(XM_NO_MISALIGNED_VECTOR_ACCESS)
#endif // _XM_VMX128_INTRINSICS_
}
//------------------------------------------------------------------------------
XMFINLINE XMVECTOR XMLoadHenDN3
(
CONST XMHENDN3* pSource
)
{
#if defined(_XM_NO_INTRINSICS_)
XMVECTOR V;
UINT Element;
static CONST UINT SignExtendXY[] = {0x00000000, 0xFFFFF800};
static CONST UINT SignExtendZ[] = {0x00000000, 0xFFFFFC00};
XMASSERT(pSource);
XMASSERT((pSource->v & 0x7FF) != 0x400);