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authorLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-01-13 03:51:33 +0100
committerLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-01-13 03:51:34 +0100
commit6f67371bb1b46579ae837d0e0c61ac1b291be743 (patch)
tree5a43692a064d84e5c5688b1b3639342555139c3c /external/include/glm/detail/func_integer_simd.inl
parentBackported to C++14 (diff)
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Diffstat (limited to 'external/include/glm/detail/func_integer_simd.inl')
-rw-r--r--external/include/glm/detail/func_integer_simd.inl68
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
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+++ b/external/include/glm/detail/func_integer_simd.inl
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+/// @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