From 3bf42c6ff3805a0d42bbc661794a95ff31bedc26 Mon Sep 17 00:00:00 2001
From: untodesu <kirill@untode.su>
Date: Sat, 15 Mar 2025 16:22:09 +0500
Subject: Add whatever I was working on for the last month

---
 deps/include/glm/detail/func_integer_simd.inl | 65 +++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 deps/include/glm/detail/func_integer_simd.inl

(limited to 'deps/include/glm/detail/func_integer_simd.inl')

diff --git a/deps/include/glm/detail/func_integer_simd.inl b/deps/include/glm/detail/func_integer_simd.inl
new file mode 100644
index 0000000..5600c84
--- /dev/null
+++ b/deps/include/glm/detail/func_integer_simd.inl
@@ -0,0 +1,65 @@
+#include "../simd/integer.h"
+
+#if GLM_ARCH & GLM_ARCH_SSE2_BIT
+
+namespace glm{
+namespace detail
+{
+	template<qualifier Q>
+	struct compute_bitfieldReverseStep<4, uint, Q, true, true>
+	{
+		GLM_FUNC_QUALIFIER static vec<4, uint, Q> call(vec<4, uint, Q> const& v, uint Mask, uint Shift)
+		{
+			__m128i const set0 = v.data;
+
+			__m128i const set1 = _mm_set1_epi32(static_cast<int>(Mask));
+			__m128i const and1 = _mm_and_si128(set0, set1);
+			__m128i const sft1 = _mm_slli_epi32(and1, static_cast<int>(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, static_cast<int>(Shift));
+
+			__m128i const or0 = _mm_or_si128(sft1, sft2);
+
+			return or0;
+		}
+	};
+
+	template<qualifier Q>
+	struct compute_bitfieldBitCountStep<4, uint, Q, true, true>
+	{
+		GLM_FUNC_QUALIFIER static vec<4, uint, Q> call(vec<4, uint, Q> const& v, uint Mask, uint Shift)
+		{
+			__m128i const set0 = v.data;
+
+			__m128i const set1 = _mm_set1_epi32(static_cast<int>(Mask));
+			__m128i const and0 = _mm_and_si128(set0, set1);
+			__m128i const sft0 = _mm_slli_epi32(set0, static_cast<int>(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(uint x)
+	{
+		return _mm_popcnt_u32(x);
+	}
+
+#	if(GLM_MODEL == GLM_MODEL_64)
+	template<>
+	GLM_FUNC_QUALIFIER int bitCount(detail::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
-- 
cgit