| /////////////////////////////////////////////////////////////////////////////////// |
| /// OpenGL Mathematics (glm.g-truc.net) |
| /// |
| /// Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net) |
| /// Permission is hereby granted, free of charge, to any person obtaining a copy |
| /// of this software and associated documentation files (the "Software"), to deal |
| /// in the Software without restriction, including without limitation the rights |
| /// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| /// copies of the Software, and to permit persons to whom the Software is |
| /// furnished to do so, subject to the following conditions: |
| /// |
| /// The above copyright notice and this permission notice shall be included in |
| /// all copies or substantial portions of the Software. |
| /// |
| /// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| /// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| /// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| /// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| /// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| /// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| /// THE SOFTWARE. |
| /// |
| /// @ref core |
| /// @file glm/core/intrinsic_integer.inl |
| /// @date 2009-05-08 / 2011-06-15 |
| /// @author Christophe Riccio |
| /////////////////////////////////////////////////////////////////////////////////// |
| |
| namespace glm{ |
| namespace detail |
| { |
| inline __m128i _mm_bit_interleave_si128(__m128i x) |
| { |
| __m128i const Mask4 = _mm_set1_epi32(0x0000FFFF); |
| __m128i const Mask3 = _mm_set1_epi32(0x00FF00FF); |
| __m128i const Mask2 = _mm_set1_epi32(0x0F0F0F0F); |
| __m128i const Mask1 = _mm_set1_epi32(0x33333333); |
| __m128i const Mask0 = _mm_set1_epi32(0x55555555); |
| |
| __m128i Reg1; |
| __m128i 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; |
| } |
| |
| inline __m128i _mm_bit_interleave_si128(__m128i x, __m128i y) |
| { |
| __m128i const Mask4 = _mm_set1_epi32(0x0000FFFF); |
| __m128i const Mask3 = _mm_set1_epi32(0x00FF00FF); |
| __m128i const Mask2 = _mm_set1_epi32(0x0F0F0F0F); |
| __m128i const Mask1 = _mm_set1_epi32(0x33333333); |
| __m128i const Mask0 = _mm_set1_epi32(0x55555555); |
| |
| __m128i Reg1; |
| __m128i 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; |
| } |
| }//namespace detail |
| }//namespace glms |