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gerrit-public.fairphone.software / platform / external / vulkan-validation-layers / e66ec96ea72fd7c308f0ad4fd901b8cfd9d81aa5 / . / libs / glm / detail / intrinsic_integer.inl
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Tony-LunarGb0b195d2015-05-13 15:01:06 -0600[diff] [blame]1///////////////////////////////////////////////////////////////////////////////////
2/// OpenGL Mathematics (glm.g-truc.net)
3///
4/// Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net)
5/// Permission is hereby granted, free of charge, to any person obtaining a copy
6/// of this software and associated documentation files (the "Software"), to deal
7/// in the Software without restriction, including without limitation the rights
8/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9/// copies of the Software, and to permit persons to whom the Software is
10/// furnished to do so, subject to the following conditions:
11///
12/// The above copyright notice and this permission notice shall be included in
13/// all copies or substantial portions of the Software.
14///
15/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21/// THE SOFTWARE.
22///
23/// @ref core
24/// @file glm/core/intrinsic_integer.inl
25/// @date 2009-05-08 / 2011-06-15
26/// @author Christophe Riccio
27///////////////////////////////////////////////////////////////////////////////////
28
29namespace glm{
30namespace detail
31{
32 inline __m128i _mm_bit_interleave_si128(__m128i x)
33 {
34 __m128i const Mask4 = _mm_set1_epi32(0x0000FFFF);
35 __m128i const Mask3 = _mm_set1_epi32(0x00FF00FF);
36 __m128i const Mask2 = _mm_set1_epi32(0x0F0F0F0F);
37 __m128i const Mask1 = _mm_set1_epi32(0x33333333);
38 __m128i const Mask0 = _mm_set1_epi32(0x55555555);
39
40 __m128i Reg1;
41 __m128i Reg2;
42
43 // REG1 = x;
44 // REG2 = y;
45 //Reg1 = _mm_unpacklo_epi64(x, y);
46 Reg1 = x;
47
48 //REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
49 //REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
50 Reg2 = _mm_slli_si128(Reg1, 2);
51 Reg1 = _mm_or_si128(Reg2, Reg1);
52 Reg1 = _mm_and_si128(Reg1, Mask4);
53
54 //REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
55 //REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
56 Reg2 = _mm_slli_si128(Reg1, 1);
57 Reg1 = _mm_or_si128(Reg2, Reg1);
58 Reg1 = _mm_and_si128(Reg1, Mask3);
59
60 //REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
61 //REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
62 Reg2 = _mm_slli_epi32(Reg1, 4);
63 Reg1 = _mm_or_si128(Reg2, Reg1);
64 Reg1 = _mm_and_si128(Reg1, Mask2);
65
66 //REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
67 //REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
68 Reg2 = _mm_slli_epi32(Reg1, 2);
69 Reg1 = _mm_or_si128(Reg2, Reg1);
70 Reg1 = _mm_and_si128(Reg1, Mask1);
71
72 //REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
73 //REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
74 Reg2 = _mm_slli_epi32(Reg1, 1);
75 Reg1 = _mm_or_si128(Reg2, Reg1);
76 Reg1 = _mm_and_si128(Reg1, Mask0);
77
78 //return REG1 | (REG2 << 1);
79 Reg2 = _mm_slli_epi32(Reg1, 1);
80 Reg2 = _mm_srli_si128(Reg2, 8);
81 Reg1 = _mm_or_si128(Reg1, Reg2);
82
83 return Reg1;
84 }
85
86 inline __m128i _mm_bit_interleave_si128(__m128i x, __m128i y)
87 {
88 __m128i const Mask4 = _mm_set1_epi32(0x0000FFFF);
89 __m128i const Mask3 = _mm_set1_epi32(0x00FF00FF);
90 __m128i const Mask2 = _mm_set1_epi32(0x0F0F0F0F);
91 __m128i const Mask1 = _mm_set1_epi32(0x33333333);
92 __m128i const Mask0 = _mm_set1_epi32(0x55555555);
93
94 __m128i Reg1;
95 __m128i Reg2;
96
97 // REG1 = x;
98 // REG2 = y;
99 Reg1 = _mm_unpacklo_epi64(x, y);
100
101 //REG1 = ((REG1 << 16) | REG1) & glm::uint64(0x0000FFFF0000FFFF);
102 //REG2 = ((REG2 << 16) | REG2) & glm::uint64(0x0000FFFF0000FFFF);
103 Reg2 = _mm_slli_si128(Reg1, 2);
104 Reg1 = _mm_or_si128(Reg2, Reg1);
105 Reg1 = _mm_and_si128(Reg1, Mask4);
106
107 //REG1 = ((REG1 << 8) | REG1) & glm::uint64(0x00FF00FF00FF00FF);
108 //REG2 = ((REG2 << 8) | REG2) & glm::uint64(0x00FF00FF00FF00FF);
109 Reg2 = _mm_slli_si128(Reg1, 1);
110 Reg1 = _mm_or_si128(Reg2, Reg1);
111 Reg1 = _mm_and_si128(Reg1, Mask3);
112
113 //REG1 = ((REG1 << 4) | REG1) & glm::uint64(0x0F0F0F0F0F0F0F0F);
114 //REG2 = ((REG2 << 4) | REG2) & glm::uint64(0x0F0F0F0F0F0F0F0F);
115 Reg2 = _mm_slli_epi32(Reg1, 4);
116 Reg1 = _mm_or_si128(Reg2, Reg1);
117 Reg1 = _mm_and_si128(Reg1, Mask2);
118
119 //REG1 = ((REG1 << 2) | REG1) & glm::uint64(0x3333333333333333);
120 //REG2 = ((REG2 << 2) | REG2) & glm::uint64(0x3333333333333333);
121 Reg2 = _mm_slli_epi32(Reg1, 2);
122 Reg1 = _mm_or_si128(Reg2, Reg1);
123 Reg1 = _mm_and_si128(Reg1, Mask1);
124
125 //REG1 = ((REG1 << 1) | REG1) & glm::uint64(0x5555555555555555);
126 //REG2 = ((REG2 << 1) | REG2) & glm::uint64(0x5555555555555555);
127 Reg2 = _mm_slli_epi32(Reg1, 1);
128 Reg1 = _mm_or_si128(Reg2, Reg1);
129 Reg1 = _mm_and_si128(Reg1, Mask0);
130
131 //return REG1 | (REG2 << 1);
132 Reg2 = _mm_slli_epi32(Reg1, 1);
133 Reg2 = _mm_srli_si128(Reg2, 8);
134 Reg1 = _mm_or_si128(Reg1, Reg2);
135
136 return Reg1;
137 }
138}//namespace detail
139}//namespace glms