/
super-xbr-small-details-pass0.cg
209 lines (163 loc) · 6.71 KB
/
super-xbr-small-details-pass0.cg
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
#pragma parameter XBR_EDGE_STR "Xbr - Edge Strength p0" 2.0 0.0 5.0 0.2
#pragma parameter XBR_WEIGHT "Xbr - Filter Weight" 1.0 0.00 1.50 0.01
#pragma parameter XBR_ANTI_RINGING "Xbr - Anti-Ringing Level" 1.0 0.0 1.0 1.0
#include "super-xbr-params.inc"
/* COMPATIBILITY
- HLSL compilers
- Cg compilers
*/
/*
******* Super XBR Shader - pass0 *******
Copyright (c) 2015 Hyllian - sergiogdb@gmail.com
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.
*/
#define wp1 1.0
#define wp2 0.0
#define wp3 0.0
#define wp4 1.0
#define wp5 -1.0
#define wp6 0.0
#define weight1 (XBR_WEIGHT*1.29633/10.0)
#define weight2 (XBR_WEIGHT*1.75068/10.0/2.0)
const static float3 Y = float3(.2126, .7152, .0722);
float RGBtoYUV(float3 color)
{
return dot(color, Y);
}
float df(float A, float B)
{
return abs(A-B);
}
/*
P1
|P0|B |C |P1| C F4 |a0|b1|c2|d3|
|D |E |F |F4| B F I4 |b0|c1|d2|e3| |e1|i1|i2|e2|
|G |H |I |I4| P0 E A I P3 |c0|d1|e2|f3| |e3|i3|i4|e4|
|P2|H5|I5|P3| D H I5 |d0|e1|f2|g3|
G H5
P2
*/
float d_wd(float b0, float b1, float c0, float c1, float c2, float d0, float d1, float d2, float d3, float e1, float e2, float e3, float f2, float f3)
{
return (wp1*(df(c1,c2) + df(c1,c0) + df(e2,e1) + df(e2,e3)) + wp2*(df(d2,d3) + df(d0,d1)) + wp3*(df(d1,d3) + df(d0,d2)) + wp4*df(d1,d2) + wp5*(df(c0,c2) + df(e1,e3)) + wp6*(df(b0,b1) + df(f2,f3)));
}
float hv_wd(float i1, float i2, float i3, float i4, float e1, float e2, float e3, float e4)
{
return ( wp4*(df(i1,i2)+df(i3,i4)) + wp1*(df(i1,e1)+df(i2,e2)+df(i3,e3)+df(i4,e4)) );
}
float3 min4(float3 a, float3 b, float3 c, float3 d)
{
return min(a, min(b, min(c, d)));
}
float3 max4(float3 a, float3 b, float3 c, float3 d)
{
return max(a, max(b, max(c, d)));
}
struct input
{
float2 video_size;
float2 texture_size;
float2 output_size;
float frame_count;
float frame_direction;
float frame_rotation;
};
struct out_vertex {
float4 position : POSITION;
float4 color : COLOR;
float2 texCoord : TEXCOORD0;
float4 t1 : TEXCOORD1;
float4 t2 : TEXCOORD2;
float4 t3 : TEXCOORD3;
float4 t4 : TEXCOORD4;
};
/* VERTEX_SHADER */
out_vertex main_vertex
(
float4 position : POSITION,
float4 color : COLOR,
float2 texCoord : TEXCOORD0,
uniform float4x4 modelViewProj,
uniform input IN
)
{
float2 ps = float2(1.0/IN.texture_size.x, 1.0/IN.texture_size.y);
float dx = ps.x;
float dy = ps.y;
out_vertex OUT = {
mul(modelViewProj, position),
color,
texCoord,
texCoord.xyxy + float4(-dx, -dy, 2.0*dx, 2.0*dy),
texCoord.xyxy + float4( 0, -dy, dx, 2.0*dy),
texCoord.xyxy + float4(-dx, 0, 2.0*dx, dy),
texCoord.xyxy + float4( 0, 0, dx, dy)
};
return OUT;
}
float4 main_fragment(in out_vertex VAR, uniform sampler2D s0 : TEXUNIT0, uniform input IN) : COLOR
{
float3 P0 = tex2D(s0, VAR.t1.xy).xyz;
float3 P1 = tex2D(s0, VAR.t1.zy).xyz;
float3 P2 = tex2D(s0, VAR.t1.xw).xyz;
float3 P3 = tex2D(s0, VAR.t1.zw).xyz;
float3 B = tex2D(s0, VAR.t2.xy).xyz;
float3 C = tex2D(s0, VAR.t2.zy).xyz;
float3 H5 = tex2D(s0, VAR.t2.xw).xyz;
float3 I5 = tex2D(s0, VAR.t2.zw).xyz;
float3 D = tex2D(s0, VAR.t3.xy).xyz;
float3 F4 = tex2D(s0, VAR.t3.zy).xyz;
float3 G = tex2D(s0, VAR.t3.xw).xyz;
float3 I4 = tex2D(s0, VAR.t3.zw).xyz;
float3 E = tex2D(s0, VAR.t4.xy).xyz;
float3 F = tex2D(s0, VAR.t4.zy).xyz;
float3 H = tex2D(s0, VAR.t4.xw).xyz;
float3 I = tex2D(s0, VAR.t4.zw).xyz;
float b = RGBtoYUV( B );
float c = RGBtoYUV( C );
float d = RGBtoYUV( D );
float e = RGBtoYUV( E );
float f = RGBtoYUV( F );
float g = RGBtoYUV( G );
float h = RGBtoYUV( H );
float i = RGBtoYUV( I );
float i4 = RGBtoYUV( I4 ); float p0 = RGBtoYUV( P0 );
float i5 = RGBtoYUV( I5 ); float p1 = RGBtoYUV( P1 );
float h5 = RGBtoYUV( H5 ); float p2 = RGBtoYUV( P2 );
float f4 = RGBtoYUV( F4 ); float p3 = RGBtoYUV( P3 );
/* Calc edgeness in diagonal directions. */
float d_edge = (d_wd( d, b, g, e, c, p2, h, f, p1, h5, i, f4, i5, i4 ) - d_wd( c, f4, b, f, i4, p0, e, i, p3, d, h, i5, g, h5 ));
/* Calc edgeness in horizontal/vertical directions. */
float hv_edge = (hv_wd(f, i, e, h, c, i5, b, h5) - hv_wd(e, f, h, i, d, f4, g, i4));
float limits = XBR_EDGE_STR + 0.000001;
float edge_strength = smoothstep(0.0, limits, abs(d_edge));
/* Filter weights. Two taps only. */
float4 w1 = float4(-weight1, weight1+0.5, weight1+0.5, -weight1);
float4 w2 = float4(-weight2, weight2+0.25, weight2+0.25, -weight2);
/* Filtering and normalization in four direction generating four colors. */
float3 c1 = mul(w1, float4x3( P2, H, F, P1 ));
float3 c2 = mul(w1, float4x3( P0, E, I, P3 ));
float3 c3 = mul(w2, float4x3(D+G, E+H, F+I, F4+I4));
float3 c4 = mul(w2, float4x3(C+B, F+E, I+H, I5+H5));
/* Smoothly blends the two strongest directions (one in diagonal and the other in vert/horiz direction). */
float3 color = lerp(lerp(c1, c2, step(0.0, d_edge)), lerp(c3, c4, step(0.0, hv_edge)), 1 - edge_strength);
/* Anti-ringing code. */
float3 min_sample = min4( E, F, H, I ) + (1-XBR_ANTI_RINGING)*lerp((P2-H)*(F-P1), (P0-E)*(I-P3), step(0.0, d_edge));
float3 max_sample = max4( E, F, H, I ) - (1-XBR_ANTI_RINGING)*lerp((P2-H)*(F-P1), (P0-E)*(I-P3), step(0.0, d_edge));
color = clamp(color, min_sample, max_sample);
return float4(color, 1.0);
}