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authorThales Lima Oliveira <thaleslima.ufu@gmail.com>2020-07-08 12:05:44 -0300
committerThales Lima Oliveira <thaleslima.ufu@gmail.com>2020-07-08 12:05:44 -0300
commitcc2e40324d884bc0417809980a696a5084e661d7 (patch)
tree9620dfa32e44af5c125aac2c9bce36011ad27b8b /Project/glm/simd/integer.h
parentae765504642759ba4addbf91d62f167ba5f063a3 (diff)
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+/// @ref simd
+/// @file glm/simd/integer.h
+
+#pragma once
+
+#if GLM_ARCH & GLM_ARCH_SSE2_BIT
+
+GLM_FUNC_QUALIFIER glm_uvec4 glm_i128_interleave(glm_uvec4 x)
+{
+ glm_uvec4 const Mask4 = _mm_set1_epi32(0x0000FFFF);
+ glm_uvec4 const Mask3 = _mm_set1_epi32(0x00FF00FF);
+ glm_uvec4 const Mask2 = _mm_set1_epi32(0x0F0F0F0F);
+ glm_uvec4 const Mask1 = _mm_set1_epi32(0x33333333);
+ glm_uvec4 const Mask0 = _mm_set1_epi32(0x55555555);
+
+ glm_uvec4 Reg1;
+ glm_uvec4 Reg2;
+
+ // REG1 = x;
+ // REG2 = y;
+ //Reg1 = _mm_unpacklo_epi64(x, y);
+ Reg1 = x;
+
+ //REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
+ //REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
+ Reg2 = _mm_slli_si128(Reg1, 2);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask4);
+
+ //REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
+ //REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
+ Reg2 = _mm_slli_si128(Reg1, 1);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask3);
+
+ //REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
+ //REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
+ Reg2 = _mm_slli_epi32(Reg1, 4);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask2);
+
+ //REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
+ //REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
+ Reg2 = _mm_slli_epi32(Reg1, 2);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask1);
+
+ //REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
+ //REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
+ Reg2 = _mm_slli_epi32(Reg1, 1);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask0);
+
+ //return REG1 | (REG2 << 1);
+ Reg2 = _mm_slli_epi32(Reg1, 1);
+ Reg2 = _mm_srli_si128(Reg2, 8);
+ Reg1 = _mm_or_si128(Reg1, Reg2);
+
+ return Reg1;
+}
+
+GLM_FUNC_QUALIFIER glm_uvec4 glm_i128_interleave2(glm_uvec4 x, glm_uvec4 y)
+{
+ glm_uvec4 const Mask4 = _mm_set1_epi32(0x0000FFFF);
+ glm_uvec4 const Mask3 = _mm_set1_epi32(0x00FF00FF);
+ glm_uvec4 const Mask2 = _mm_set1_epi32(0x0F0F0F0F);
+ glm_uvec4 const Mask1 = _mm_set1_epi32(0x33333333);
+ glm_uvec4 const Mask0 = _mm_set1_epi32(0x55555555);
+
+ glm_uvec4 Reg1;
+ glm_uvec4 Reg2;
+
+ // REG1 = x;
+ // REG2 = y;
+ Reg1 = _mm_unpacklo_epi64(x, y);
+
+ //REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
+ //REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
+ Reg2 = _mm_slli_si128(Reg1, 2);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask4);
+
+ //REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
+ //REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
+ Reg2 = _mm_slli_si128(Reg1, 1);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask3);
+
+ //REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
+ //REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
+ Reg2 = _mm_slli_epi32(Reg1, 4);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask2);
+
+ //REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
+ //REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
+ Reg2 = _mm_slli_epi32(Reg1, 2);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask1);
+
+ //REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
+ //REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
+ Reg2 = _mm_slli_epi32(Reg1, 1);
+ Reg1 = _mm_or_si128(Reg2, Reg1);
+ Reg1 = _mm_and_si128(Reg1, Mask0);
+
+ //return REG1 | (REG2 << 1);
+ Reg2 = _mm_slli_epi32(Reg1, 1);
+ Reg2 = _mm_srli_si128(Reg2, 8);
+ Reg1 = _mm_or_si128(Reg1, Reg2);
+
+ return Reg1;
+}
+
+#endif//GLM_ARCH & GLM_ARCH_SSE2_BIT