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
|
/*
* Copyright (C) 2005-2015 Team Kodi
* http://kodi.tv
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
struct VS_INPUT
{
float4 pos : POSITION;
float4 color: COLOR0;
float2 tex : TEXCOORD0;
float2 tex2 : TEXCOORD1;
};
struct PS_INPUT
{
float4 pos : SV_POSITION;
float4 color: COLOR0;
float2 tex : TEXCOORD0;
float2 tex2 : TEXCOORD1;
};
SamplerState LinearSampler : register(s0)
{
Filter = MIN_MAG_MIP_LINEAR;
AddressU = CLAMP;
AddressV = CLAMP;
Comparison = NEVER;
};
cbuffer cbWorld : register(b0)
{
float4x4 worldViewProj;
float blackLevel;
float colorRange;
int PQ;
};
inline float3 transferPQ(float3 x)
{
static const float ST2084_m1 = 2610.0f / (4096.0f * 4.0f);
static const float ST2084_m2 = (2523.0f / 4096.0f) * 128.0f;
static const float ST2084_c1 = 3424.0f / 4096.0f;
static const float ST2084_c2 = (2413.0f / 4096.0f) * 32.0f;
static const float ST2084_c3 = (2392.0f / 4096.0f) * 32.0f;
static const float SDR_peak_lum = 100.0f;
static const float3x3 matx =
{
0.627402, 0.329292, 0.043306,
0.069095, 0.919544, 0.011360,
0.016394, 0.088028, 0.895578
};
// REC.709 to linear
x = pow(x, 1.0f / 0.45f);
// REC.709 to BT.2020
x = mul(matx, x);
// linear to PQ
x = pow(x / SDR_peak_lum, ST2084_m1);
x = (ST2084_c1 + ST2084_c2 * x) / (1.0f + ST2084_c3 * x);
x = pow(x, ST2084_m2);
return x;
}
inline float4 tonemapHDR(float4 color)
{
return (PQ) ? float4(transferPQ(color.rgb), color.a) : color;
}
inline float4 adjustColorRange(float4 color)
{
return float4(blackLevel + colorRange * color.rgb, color.a);
}
#define STEREO_LEFT_EYE_INDEX 0
#define STEREO_RIGHT_EYE_INDEX 1
#ifdef STEREO_MODE_SHADER
inline float4 StereoInterlaced(PS_INPUT input, int eye)
{
uint pixelY = abs(trunc(input.tex.y * g_viewPortHeigh));
uint odd = pixelY % 2;
if ((odd == 0 && !eye) || (odd != 0 && eye))
return float4(texView.Sample(LinearSampler, input.tex).rgb, 1.0);
else
return float4(0.0, 0.0, 0.0, 0.0);
}
inline float4 StereoCheckerboard(PS_INPUT input, int eye)
{
uint pixelX = abs(trunc(input.tex.x * g_viewPortWidth));
uint pixelY = abs(trunc(input.tex.y * g_viewPortHeigh));
uint odd = (pixelX + pixelY) % 2;
if ((odd == 0 && !eye) || (odd != 0 && eye))
return float4(texView.Sample(LinearSampler, input.tex).rgb, 1.0);
else
return float4(0.0, 0.0, 0.0, 0.0);
}
#endif
|
