1 /*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #ifndef Sk4x4f_DEFINED
9 #define Sk4x4f_DEFINED
10
11 #include "SkNx.h"
12
13 namespace {
14
15 struct Sk4x4f {
16 Sk4f r,g,b,a;
17
18 static Sk4x4f Transpose(const Sk4f&, const Sk4f&, const Sk4f&, const Sk4f&);
19 static Sk4x4f Transpose(const float[16]);
20 static Sk4x4f Transpose(const uint8_t[16]);
21
transposeSk4x4f22 void transpose(Sk4f* x, Sk4f* y, Sk4f* z, Sk4f* w) const {
23 auto t = Transpose(r,g,b,a);
24 *x = t.r;
25 *y = t.g;
26 *z = t.b;
27 *w = t.a;
28 }
29 void transpose( float[16]) const;
30 void transpose(uint8_t[16]) const;
31 };
32
33 #if 1 && !defined(SKNX_NO_SIMD) && SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2
34
Transpose(const Sk4f & x,const Sk4f & y,const Sk4f & z,const Sk4f & w)35 inline Sk4x4f Sk4x4f::Transpose(const Sk4f& x, const Sk4f& y, const Sk4f& z, const Sk4f& w) {
36 auto r = x.fVec,
37 g = y.fVec,
38 b = z.fVec,
39 a = w.fVec;
40 _MM_TRANSPOSE4_PS(r,g,b,a);
41 return { r,g,b,a };
42 }
43
Transpose(const float fs[16])44 inline Sk4x4f Sk4x4f::Transpose(const float fs[16]) {
45 return Transpose(Sk4f::Load(fs+0), Sk4f::Load(fs+4), Sk4f::Load(fs+8), Sk4f::Load(fs+12));
46 }
47
Transpose(const uint8_t bs[16])48 inline Sk4x4f Sk4x4f::Transpose(const uint8_t bs[16]) {
49 auto b16 = _mm_loadu_si128((const __m128i*)bs);
50
51 auto mask = _mm_set1_epi32(0xFF);
52 auto r = _mm_cvtepi32_ps(_mm_and_si128(mask, (b16 ))),
53 g = _mm_cvtepi32_ps(_mm_and_si128(mask, _mm_srli_epi32(b16, 8))),
54 b = _mm_cvtepi32_ps(_mm_and_si128(mask, _mm_srli_epi32(b16, 16))),
55 a = _mm_cvtepi32_ps( _mm_srli_epi32(b16, 24));
56 return { r,g,b,a };
57 }
58
transpose(float fs[16])59 inline void Sk4x4f::transpose(float fs[16]) const {
60 Sk4f x,y,z,w;
61 this->transpose(&x,&y,&z,&w);
62 x.store(fs+ 0);
63 y.store(fs+ 4);
64 z.store(fs+ 8);
65 w.store(fs+12);
66 }
67
transpose(uint8_t bs[16])68 inline void Sk4x4f::transpose(uint8_t bs[16]) const {
69 auto R = _mm_cvttps_epi32(r.fVec),
70 G = _mm_slli_epi32(_mm_cvttps_epi32(g.fVec), 8),
71 B = _mm_slli_epi32(_mm_cvttps_epi32(b.fVec), 16),
72 A = _mm_slli_epi32(_mm_cvttps_epi32(a.fVec), 24);
73 _mm_storeu_si128((__m128i*)bs, _mm_or_si128(A, _mm_or_si128(B, _mm_or_si128(G, R))));
74 }
75
76 #elif defined(SK_ARM_HAS_NEON)
77
Transpose(const Sk4f & x,const Sk4f & y,const Sk4f & z,const Sk4f & w)78 inline Sk4x4f Sk4x4f::Transpose(const Sk4f& x, const Sk4f& y, const Sk4f& z, const Sk4f& w) {
79 float32x4x2_t xy = vuzpq_f32(x.fVec, y.fVec),
80 zw = vuzpq_f32(z.fVec, w.fVec),
81 rb = vuzpq_f32(xy.val[0], zw.val[0]),
82 ga = vuzpq_f32(xy.val[1], zw.val[1]);
83 return { rb.val[0], ga.val[0], rb.val[1], ga.val[1] };
84 }
85
Transpose(const float fs[16])86 inline Sk4x4f Sk4x4f::Transpose(const float fs[16]) {
87 float32x4x4_t v = vld4q_f32(fs);
88 return { v.val[0], v.val[1], v.val[2], v.val[3] };
89 }
90
Transpose(const uint8_t bs[16])91 inline Sk4x4f Sk4x4f::Transpose(const uint8_t bs[16]) {
92 auto b16 = vreinterpretq_u32_u8(vld1q_u8(bs));
93 auto r = vcvtq_f32_u32(vandq_u32(vdupq_n_u32(0x000000FF), b16) ),
94 g = vcvtq_n_f32_u32(vandq_u32(vdupq_n_u32(0x0000FF00), b16), 8),
95 b = vcvtq_n_f32_u32(vandq_u32(vdupq_n_u32(0x00FF0000), b16), 16),
96 a = vcvtq_n_f32_u32(vandq_u32(vdupq_n_u32(0xFF000000), b16), 24);
97 return { r,g,b,a };
98 }
99
transpose(float fs[16])100 inline void Sk4x4f::transpose(float fs[16]) const {
101 float32x4x4_t v = {{ r.fVec, g.fVec, b.fVec, a.fVec }};
102 vst4q_f32(fs, v);
103 }
104
transpose(uint8_t bs[16])105 inline void Sk4x4f::transpose(uint8_t bs[16]) const {
106 auto R = vandq_u32(vdupq_n_u32(0x000000FF), vcvtq_u32_f32(r.fVec )),
107 G = vandq_u32(vdupq_n_u32(0x0000FF00), vcvtq_n_u32_f32(g.fVec, 8)),
108 B = vandq_u32(vdupq_n_u32(0x00FF0000), vcvtq_n_u32_f32(b.fVec, 16)),
109 A = vandq_u32(vdupq_n_u32(0xFF000000), vcvtq_n_u32_f32(a.fVec, 24));
110 vst1q_u8(bs, vreinterpretq_u8_u32(vorrq_u32(A, vorrq_u32(B, vorrq_u32(G, R)))));
111 }
112
113 #else
114
Transpose(const Sk4f & x,const Sk4f & y,const Sk4f & z,const Sk4f & w)115 inline Sk4x4f Sk4x4f::Transpose(const Sk4f& x, const Sk4f& y, const Sk4f& z, const Sk4f& w) {
116 return {
117 { x[0], y[0], z[0], w[0] },
118 { x[1], y[1], z[1], w[1] },
119 { x[2], y[2], z[2], w[2] },
120 { x[3], y[3], z[3], w[3] },
121 };
122 }
123
Transpose(const float fs[16])124 inline Sk4x4f Sk4x4f::Transpose(const float fs[16]) {
125 return Transpose(Sk4f::Load(fs+0), Sk4f::Load(fs+4), Sk4f::Load(fs+8), Sk4f::Load(fs+12));
126 }
127
Transpose(const uint8_t bs[16])128 inline Sk4x4f Sk4x4f::Transpose(const uint8_t bs[16]) {
129 return {
130 { (float)bs[0], (float)bs[4], (float)bs[ 8], (float)bs[12] },
131 { (float)bs[1], (float)bs[5], (float)bs[ 9], (float)bs[13] },
132 { (float)bs[2], (float)bs[6], (float)bs[10], (float)bs[14] },
133 { (float)bs[3], (float)bs[7], (float)bs[11], (float)bs[15] },
134 };
135 }
136
transpose(float fs[16])137 inline void Sk4x4f::transpose(float fs[16]) const {
138 Sk4f x,y,z,w;
139 this->transpose(&x,&y,&z,&w);
140 x.store(fs+ 0);
141 y.store(fs+ 4);
142 z.store(fs+ 8);
143 w.store(fs+12);
144 }
145
transpose(uint8_t bs[16])146 inline void Sk4x4f::transpose(uint8_t bs[16]) const {
147 bs[ 0] = (uint8_t)r[0]; bs[ 1] = (uint8_t)g[0]; bs[ 2] = (uint8_t)b[0]; bs[ 3] = (uint8_t)a[0];
148 bs[ 4] = (uint8_t)r[1]; bs[ 5] = (uint8_t)g[1]; bs[ 6] = (uint8_t)b[1]; bs[ 7] = (uint8_t)a[1];
149 bs[ 8] = (uint8_t)r[2]; bs[ 9] = (uint8_t)g[2]; bs[10] = (uint8_t)b[2]; bs[11] = (uint8_t)a[2];
150 bs[12] = (uint8_t)r[3]; bs[13] = (uint8_t)g[3]; bs[14] = (uint8_t)b[3]; bs[15] = (uint8_t)a[3];
151 }
152
153 #endif
154
155 } // namespace
156
157 #endif//Sk4x4f_DEFINED
158