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October 2024 #214

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Oct 15, 2024
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October 2024 #214

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00241a5
Fix /analyze warning
walbourn Oct 15, 2024
e159eec
October 14, 2024
walbourn Oct 15, 2024
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6 changes: 6 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -6,6 +6,12 @@ Release available for download on [GitHub](https://github.com/microsoft/DirectXM

## Release History

### October 2024 (3.20)
* Fixed close-to-zero bug in the implementation of `TriangleTests::Intersects`
* Renamed implementation namespace from `DirectX::Internal` to `DirectX::MathInternal` to avoid some conformance issues with other libraries
* CMake project updates including support for ARM64EC
* Added GitHub Actions YAML files

### February 2024 (3.19)
* Fix to address MinGW issue with ``__cpuid`` in cpuid.h vs. intrin.h
* Additional updates for clang/LLVM and GNUC
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2 changes: 1 addition & 1 deletion CMakeLists.txt
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Expand Up @@ -3,7 +3,7 @@

cmake_minimum_required (VERSION 3.20)

set(DIRECTXMATH_VERSION 3.19)
set(DIRECTXMATH_VERSION 3.20)

project(DirectXMath
VERSION ${DIRECTXMATH_VERSION}
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10 changes: 5 additions & 5 deletions Inc/DirectXMath.h
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Expand Up @@ -13,7 +13,7 @@
#error DirectX Math requires C++
#endif

#define DIRECTX_MATH_VERSION 319
#define DIRECTX_MATH_VERSION 320

#if defined(_MSC_VER) && (_MSC_VER < 1910)
#error DirectX Math requires Visual C++ 2017 or later.
Expand Down Expand Up @@ -338,7 +338,7 @@ namespace DirectX
*
****************************************************************************/

#ifdef _MSC_VER
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4068 4201 4365 4324 4820)
// C4068: ignore unknown pragmas
Expand Down Expand Up @@ -2156,15 +2156,15 @@ namespace DirectX
*
****************************************************************************/

#ifdef _MSC_VER
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4068 4214 4204 4365 4616 4640 6001 6101)
// C4068/4616: ignore unknown pragmas
// C4214/4204: nonstandard extension used
// C4365/4640: Off by default noise
// C6001/6101: False positives
#endif

#ifdef _PREFAST_
#pragma prefast(push)
#pragma prefast(disable : 25000, "FXMVECTOR is 16 bytes")
Expand Down Expand Up @@ -2281,7 +2281,7 @@ namespace DirectX
#ifdef _PREFAST_
#pragma prefast(pop)
#endif
#ifdef _MSC_VER
#ifdef _MSC_VER
#pragma warning(pop)
#endif

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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -6,7 +6,7 @@ https://github.com/Microsoft/DirectXMath

Copyright (c) Microsoft Corporation.

**February 2024**
**October 2024**

This package contains the DirectXMath library, an all inline SIMD C++ linear algebra library for use in games and graphics apps.

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30 changes: 16 additions & 14 deletions XDSP/XDSP.h
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Expand Up @@ -41,7 +41,7 @@ namespace XDSP
using CXMVECTOR = DirectX::CXMVECTOR;
using XMFLOAT4A = DirectX::XMFLOAT4A;

inline bool ISPOWEROF2(size_t n) { return (((n)&((n)-1)) == 0 && (n) != 0); }
constexpr bool ISPOWEROF2(size_t n) { return (((n)&((n)-1)) == 0 && (n) != 0); }

// Parallel multiplication of four complex numbers, assuming real and imaginary values are stored in separate vectors.
inline void XM_CALLCONV vmulComplex(
Expand Down Expand Up @@ -457,42 +457,44 @@ namespace XDSP
// pUnityTable[0 to uLength*4-1] contains real components for current FFT length
// pUnityTable[uLength*4 to uLength*8-1] contains imaginary components for current FFT length
static const XMVECTORF32 vXM0123 = { { { 0.0f, 1.0f, 2.0f, 3.0f } } };
uLength >>= 2;
XMVECTOR vlStep = XMVectorReplicate(XM_PIDIV2 / float(uLength));

size_t len = uLength;
len >>= 2;
XMVECTOR vlStep = XMVectorReplicate(XM_PIDIV2 / float(len));
do
{
uLength >>= 2;
len >>= 2;
XMVECTOR vJP = vXM0123;
for (size_t j = 0; j < uLength; ++j)
for (size_t j = 0; j < len; ++j)
{
XMVECTOR vSin, vCos;
XMVECTOR viJP, vlS;

pUnityTable[j] = g_XMOne;
pUnityTable[j + uLength * 4] = XMVectorZero();
pUnityTable[j + len * 4] = XMVectorZero();

vlS = XMVectorMultiply(vJP, vlStep);
XMVectorSinCos(&vSin, &vCos, vlS);
pUnityTable[j + uLength] = vCos;
pUnityTable[j + uLength * 5] = XMVectorMultiply(vSin, g_XMNegativeOne);
pUnityTable[j + len] = vCos;
pUnityTable[j + len * 5] = XMVectorMultiply(vSin, g_XMNegativeOne);

viJP = XMVectorAdd(vJP, vJP);
vlS = XMVectorMultiply(viJP, vlStep);
XMVectorSinCos(&vSin, &vCos, vlS);
pUnityTable[j + uLength * 2] = vCos;
pUnityTable[j + uLength * 6] = XMVectorMultiply(vSin, g_XMNegativeOne);
pUnityTable[j + len * 2] = vCos;
pUnityTable[j + len * 6] = XMVectorMultiply(vSin, g_XMNegativeOne);

viJP = XMVectorAdd(viJP, vJP);
vlS = XMVectorMultiply(viJP, vlStep);
XMVectorSinCos(&vSin, &vCos, vlS);
pUnityTable[j + uLength * 3] = vCos;
pUnityTable[j + uLength * 7] = XMVectorMultiply(vSin, g_XMNegativeOne);
pUnityTable[j + len * 3] = vCos;
pUnityTable[j + len * 7] = XMVectorMultiply(vSin, g_XMNegativeOne);

vJP = XMVectorAdd(vJP, g_XMFour);
}
vlStep = XMVectorMultiply(vlStep, g_XMFour);
pUnityTable += uLength * 8;
} while (uLength > 4);
pUnityTable += len * 8;
} while (len > 4);
}

//----------------------------------------------------------------------------------
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