1 files changed, 68 insertions, 0 deletions

diff --git a/external/include/glm/detail/func_integer_simd.inl b/external/include/glm/detail/func_integer_simd.inl
new file mode 100644
index 0000000..6175860
--- /dev/null
+++ b/external/include/glm/detail/func_integer_simd.inl
@@ -0,0 +1,68 @@
+/// @ref core
+/// @file glm/detail/func_integer_simd.inl
+
+#include "../simd/integer.h"
+
+#if GLM_ARCH & GLM_ARCH_SSE2_BIT
+
+namespace glm{
+namespace detail
+{
+	template <glm::precision P>
+	struct compute_bitfieldReverseStep<uint32, P, tvec4, true, true>
+	{
+		GLM_FUNC_QUALIFIER static tvec4<uint32, P> call(tvec4<uint32, P> const & v, uint32 Mask, uint32 Shift)
+		{
+			__m128i const set0 = v.data;
+
+			__m128i const set1 = _mm_set1_epi32(Mask);
+			__m128i const and1 = _mm_and_si128(set0, set1);
+			__m128i const sft1 = _mm_slli_epi32(and1, Shift);
+
+			__m128i const set2 = _mm_andnot_si128(set0, _mm_set1_epi32(-1));
+			__m128i const and2 = _mm_and_si128(set0, set2);
+			__m128i const sft2 = _mm_srai_epi32(and2, Shift);
+		
+			__m128i const or0 = _mm_or_si128(sft1, sft2);
+		
+			return or0;
+		}
+	};
+
+	template <glm::precision P>
+	struct compute_bitfieldBitCountStep<uint32, P, tvec4, true, true>
+	{
+		GLM_FUNC_QUALIFIER static tvec4<uint32, P> call(tvec4<uint32, P> const & v, uint32 Mask, uint32 Shift)
+		{
+			__m128i const set0 = v.data;
+
+			__m128i const set1 = _mm_set1_epi32(Mask);
+			__m128i const and0 = _mm_and_si128(set0, set1);
+			__m128i const sft0 = _mm_slli_epi32(set0, Shift);
+			__m128i const and1 = _mm_and_si128(sft0, set1);
+			__m128i const add0 = _mm_add_epi32(and0, and1);
+		
+			return add0;
+		}
+	};
+}//namespace detail
+
+#	if GLM_ARCH & GLM_ARCH_AVX_BIT
+	template <>
+	GLM_FUNC_QUALIFIER int bitCount(uint32 x)
+	{
+		return _mm_popcnt_u32(x);
+	}
+
+#	if(GLM_MODEL == GLM_MODEL_64)
+	template <>
+	GLM_FUNC_QUALIFIER int bitCount(uint64 x)
+	{
+		return static_cast<int>(_mm_popcnt_u64(x));
+	}
+#	endif//GLM_MODEL
+#	endif//GLM_ARCH
+
+}//namespace glm
+
+#endif//GLM_ARCH & GLM_ARCH_SSE2_BIT