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https://github.com/RetroDECK/Duckstation.git
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ad27f8bac3
- Add fxaa.fx, aa-shader-40.fx, bilateral.fx; - Update geom.fx, crt-geom.fx, bicubic.fx, lanczos3.fx, super-xbr.fx.
105 lines
3.2 KiB
HLSL
105 lines
3.2 KiB
HLSL
#include "ReShade.fxh"
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/*
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Copyright (C) 2016 guest(r) - guest.r@gmail.com
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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uniform float2 NormalizedNativePixelSize < source = "normalized_native_pixel_size"; >;
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sampler2D sBackBuffer{Texture=ReShade::BackBufferTex;AddressU=CLAMP;AddressV=CLAMP;AddressW=CLAMP;MagFilter=POINT;MinFilter=POINT;};
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static const float3 dt = float3(1.0,1.0,1.0);
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float3 texture2d(sampler2D tex, float2 coord, float4 yx) {
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float3 s00 = tex2D(tex, coord + yx.zw).xyz;
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float3 s20 = tex2D(tex, coord + yx.xw).xyz;
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float3 s22 = tex2D(tex, coord + yx.xy).xyz;
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float3 s02 = tex2D(tex, coord + yx.zy).xyz;
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float m1=dot(abs(s00-s22),dt)+0.001;
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float m2=dot(abs(s02-s20),dt)+0.001;
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return 0.5*(m2*(s00+s22)+m1*(s02+s20))/(m1+m2);
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}
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float4 PS_aa_shader_40(float4 vpos: SV_Position, float2 vTexCoord : TEXCOORD0) : SV_Target
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{
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// Calculating texel coordinates
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float2 size = 4.0 / NormalizedNativePixelSize;
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float2 inv_size = 1.0 / size;
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float4 yx = float4(inv_size, -inv_size);
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float2 OGL2Pos = vTexCoord * size;
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float2 fp = frac(OGL2Pos);
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float2 dx = float2(inv_size.x,0.0);
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float2 dy = float2(0.0, inv_size.y);
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float2 g1 = float2(inv_size.x,inv_size.y);
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float2 g2 = float2(-inv_size.x,inv_size.y);
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float2 pC4 = floor(OGL2Pos) * 1.0001 * inv_size;
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// Reading the texels
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float3 C1 = texture2d(sBackBuffer, pC4 - dy, yx);
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float3 C0 = texture2d(sBackBuffer, pC4 - g1, yx);
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float3 C2 = texture2d(sBackBuffer, pC4 - g2, yx);
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float3 C3 = texture2d(sBackBuffer, pC4 - dx, yx);
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float3 C4 = texture2d(sBackBuffer, pC4 , yx);
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float3 C5 = texture2d(sBackBuffer, pC4 + dx, yx);
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float3 C6 = texture2d(sBackBuffer, pC4 + g2, yx);
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float3 C7 = texture2d(sBackBuffer, pC4 + dy, yx);
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float3 C8 = texture2d(sBackBuffer, pC4 + g1, yx);
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float3 ul, ur, dl, dr;
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float m1, m2;
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m1 = dot(abs(C0-C4),dt)+0.001;
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m2 = dot(abs(C1-C3),dt)+0.001;
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ul = (m2*(C0+C4)+m1*(C1+C3))/(m1+m2);
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m1 = dot(abs(C1-C5),dt)+0.001;
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m2 = dot(abs(C2-C4),dt)+0.001;
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ur = (m2*(C1+C5)+m1*(C2+C4))/(m1+m2);
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m1 = dot(abs(C3-C7),dt)+0.001;
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m2 = dot(abs(C6-C4),dt)+0.001;
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dl = (m2*(C3+C7)+m1*(C6+C4))/(m1+m2);
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m1 = dot(abs(C4-C8),dt)+0.001;
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m2 = dot(abs(C5-C7),dt)+0.001;
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dr = (m2*(C4+C8)+m1*(C5+C7))/(m1+m2);
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float3 c11 = 0.5*((dr*fp.x+dl*(1-fp.x))*fp.y+(ur*fp.x+ul*(1-fp.x))*(1-fp.y) );
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return float4(c11, 1.0);
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}
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technique aa_shader_40
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{
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pass
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{
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VertexShader = PostProcessVS;
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PixelShader = PS_aa_shader_40;
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}
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}
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