1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include "constants.h"
#include "col3.h"
#include "col4.h"
#include "../simd/sse.h"
namespace embree
{
////////////////////////////////////////////////////////////////////////////////
/// SSE RGBA Color Class
////////////////////////////////////////////////////////////////////////////////
struct Color4
{
struct { float r,g,b,a; };
////////////////////////////////////////////////////////////////////////////////
/// Construction
////////////////////////////////////////////////////////////////////////////////
__forceinline Color4 () {}
//__forceinline Color4 ( const __m128 a ) : m128(a) {}
__forceinline explicit Color4 (const float v) : r(v), g(v), b(v), a(v) {}
__forceinline Color4 (const float r, const float g, const float b, const float a) : r(r), g(g), b(b), a(a) {}
__forceinline explicit Color4 ( const Col3uc& other ) : r(other.r/255.0f), g(other.g/255.0f), b(other.b/255.0f), a(1.0f) {}
__forceinline explicit Color4 ( const Col3f& other ) : r(other.r), g(other.g), b(other.b), a(1.0f) {}
__forceinline explicit Color4 ( const Col4uc& other ) : r(other.r/255.0f), g(other.g/255.0f), b(other.b/255.0f), a(other.a/255.0f) {}
__forceinline explicit Color4 ( const Col4f& other ) : r(other.r), g(other.g), b(other.b), a(other.a) {}
//__forceinline Color4 ( const Color4& other ) : m128(other.m128) {}
//__forceinline Color4& operator=( const Color4& other ) { m128 = other.m128; return *this; }
//__forceinline operator const __m128&() const { return m128; }
//__forceinline operator __m128&() { return m128; }
////////////////////////////////////////////////////////////////////////////////
/// Set
////////////////////////////////////////////////////////////////////////////////
__forceinline void set(Col3f& d) const { d.r = r; d.g = g; d.b = b; }
__forceinline void set(Col4f& d) const { d.r = r; d.g = g; d.b = b; d.a = a; }
__forceinline void set(Col3uc& d) const
{
d.r = (unsigned char)(clamp(r)*255.0f);
d.g = (unsigned char)(clamp(g)*255.0f);
d.b = (unsigned char)(clamp(b)*255.0f);
}
__forceinline void set(Col4uc& d) const
{
d.r = (unsigned char)(clamp(r)*255.0f);
d.g = (unsigned char)(clamp(g)*255.0f);
d.b = (unsigned char)(clamp(b)*255.0f);
d.a = (unsigned char)(clamp(a)*255.0f);
}
__forceinline void set(float &f) const
{
f = 0.2126f*r+0.7125f*g+0.0722f*b; // sRGB luminance.
}
////////////////////////////////////////////////////////////////////////////////
/// Constants
////////////////////////////////////////////////////////////////////////////////
__forceinline Color4( ZeroTy ) : r(0.0f), g(0.0f), b(0.0f), a(0.0f) {}
__forceinline Color4( OneTy ) : r(1.0f), g(1.0f), b(1.0f), a(1.0f) {}
//__forceinline Color4( PosInfTy ) : m128(_mm_set1_ps(pos_inf)) {}
//__forceinline Color4( NegInfTy ) : m128(_mm_set1_ps(neg_inf)) {}
};
////////////////////////////////////////////////////////////////////////////////
/// SSE RGB Color Class
////////////////////////////////////////////////////////////////////////////////
struct Color
{
struct { float r,g,b; };
////////////////////////////////////////////////////////////////////////////////
/// Construction
////////////////////////////////////////////////////////////////////////////////
__forceinline Color () {}
//__forceinline Color ( const __m128 a ) : m128(a) {}
__forceinline explicit Color (const float v) : r(v), g(v), b(v) {}
__forceinline Color (const float r, const float g, const float b) : r(r), g(g), b(b) {}
//__forceinline Color ( const Color& other ) : m128(other.m128) {}
//__forceinline Color& operator=( const Color& other ) { m128 = other.m128; return *this; }
//__forceinline Color ( const Color4& other ) : m128(other.m128) {}
//__forceinline Color& operator=( const Color4& other ) { m128 = other.m128; return *this; }
//__forceinline operator const __m128&() const { return m128; }
//__forceinline operator __m128&() { return m128; }
////////////////////////////////////////////////////////////////////////////////
/// Set
////////////////////////////////////////////////////////////////////////////////
__forceinline void set(Col3f& d) const { d.r = r; d.g = g; d.b = b; }
__forceinline void set(Col4f& d) const { d.r = r; d.g = g; d.b = b; d.a = 1.0f; }
#if 0
__forceinline void set(Col3uc& d) const
{
vfloat4 s = clamp(vfloat4(m128))*255.0f;
d.r = (unsigned char)(s[0]);
d.g = (unsigned char)(s[1]);
d.b = (unsigned char)(s[2]);
}
__forceinline void set(Col4uc& d) const
{
vfloat4 s = clamp(vfloat4(m128))*255.0f;
d.r = (unsigned char)(s[0]);
d.g = (unsigned char)(s[1]);
d.b = (unsigned char)(s[2]);
d.a = 255;
}
#endif
////////////////////////////////////////////////////////////////////////////////
/// Constants
////////////////////////////////////////////////////////////////////////////////
__forceinline Color( ZeroTy ) : r(0.0f), g(0.0f), b(0.0f) {}
__forceinline Color( OneTy ) : r(1.0f), g(1.0f), b(1.0f) {}
//__forceinline Color( PosInfTy ) : m128(_mm_set1_ps(pos_inf)) {}
//__forceinline Color( NegInfTy ) : m128(_mm_set1_ps(neg_inf)) {}
};
////////////////////////////////////////////////////////////////////////////////
/// Unary Operators
////////////////////////////////////////////////////////////////////////////////
__forceinline const Color operator +( const Color& a ) { return a; }
__forceinline const Color operator -( const Color& a ) { return Color(-a.r, -a.g, -a.b); }
__forceinline const Color abs ( const Color& a ) { return Color(abs(a.r), abs(a.g), abs(a.b)); }
__forceinline const Color rcp ( const Color& a ) { return Color(1.0f/a.r, 1.0f/a.g, 1.0f/a.b); }
__forceinline const Color rsqrt( const Color& a ) { return Color(1.0f/sqrt(a.r), 1.0f/sqrt(a.g), 1.0f/sqrt(a.b)); }
__forceinline const Color sqrt ( const Color& a ) { return Color(sqrt(a.r), sqrt(a.g), sqrt(a.b)); }
////////////////////////////////////////////////////////////////////////////////
/// Binary Operators
////////////////////////////////////////////////////////////////////////////////
__forceinline const Color operator +( const Color& a, const Color& b ) { return Color(a.r+b.r, a.g+b.g, a.b+b.b); }
__forceinline const Color operator -( const Color& a, const Color& b ) { return Color(a.r-b.r, a.g-b.g, a.b-b.b); }
__forceinline const Color operator *( const Color& a, const Color& b ) { return Color(a.r*b.r, a.g*b.g, a.b*b.b); }
__forceinline const Color operator *( const Color& a, const float b ) { return a * Color(b); }
__forceinline const Color operator *( const float a, const Color& b ) { return Color(a) * b; }
__forceinline const Color operator /( const Color& a, const Color& b ) { return a * rcp(b); }
__forceinline const Color operator /( const Color& a, const float b ) { return a * rcp(b); }
__forceinline const Color min( const Color& a, const Color& b ) { return Color(min(a.r,b.r), min(a.g,b.g), min(a.b,b.b)); }
__forceinline const Color max( const Color& a, const Color& b ) { return Color(max(a.r,b.r), max(a.g,b.g), max(a.b,b.b)); }
////////////////////////////////////////////////////////////////////////////////
/// Assignment Operators
////////////////////////////////////////////////////////////////////////////////
__forceinline const Color operator+=(Color& a, const Color& b) { return a = a + b; }
__forceinline const Color operator-=(Color& a, const Color& b) { return a = a - b; }
__forceinline const Color operator*=(Color& a, const Color& b) { return a = a * b; }
__forceinline const Color operator/=(Color& a, const Color& b) { return a = a / b; }
__forceinline const Color operator*=(Color& a, const float b ) { return a = a * b; }
__forceinline const Color operator/=(Color& a, const float b ) { return a = a / b; }
////////////////////////////////////////////////////////////////////////////////
/// Reductions
////////////////////////////////////////////////////////////////////////////////
__forceinline float reduce_add(const Color& v) { return v.r+v.g+v.b; }
__forceinline float reduce_mul(const Color& v) { return v.r*v.g*v.b; }
__forceinline float reduce_min(const Color& v) { return min(v.r,v.g,v.b); }
__forceinline float reduce_max(const Color& v) { return max(v.r,v.g,v.b); }
////////////////////////////////////////////////////////////////////////////////
/// Comparison Operators
////////////////////////////////////////////////////////////////////////////////
__forceinline bool operator ==( const Color& a, const Color& b ) { return a.r == b.r && a.g == b.g && a.b == b.b; }
__forceinline bool operator !=( const Color& a, const Color& b ) { return a.r != b.r || a.g != b.g || a.b != b.b; }
__forceinline bool operator < ( const Color& a, const Color& b ) {
if (a.r != b.r) return a.r < b.r;
if (a.g != b.g) return a.g < b.g;
if (a.b != b.b) return a.b < b.b;
return false;
}
////////////////////////////////////////////////////////////////////////////////
/// Select
////////////////////////////////////////////////////////////////////////////////
__forceinline const Color select( bool s, const Color& t, const Color& f ) {
return s ? t : f;
}
////////////////////////////////////////////////////////////////////////////////
/// Special Operators
////////////////////////////////////////////////////////////////////////////////
/*! computes luminance of a color */
__forceinline float luminance (const Color& a) { return madd(0.212671f,a.r,madd(0.715160f,a.g,0.072169f*a.b)); }
/*! output operator */
inline std::ostream& operator<<(std::ostream& cout, const Color& a) {
return cout << "(" << a.r << ", " << a.g << ", " << a.b << ")";
}
}
|
