mirror of
https://github.com/joncampbell123/dosbox-x.git
synced 2025-05-08 19:32:39 +08:00
266 lines
7.2 KiB
HLSL
266 lines
7.2 KiB
HLSL
/* ############################################################################################
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2xSaLAA shader - Copyright (C) 2013 guest(r) - guest.r@gmail.com
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############################################################################################
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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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// NOTES: Set scaler to normal2x or any other 2x scaler (forced mode for hi-res)
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#include "shader.code"
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float scaling : SCALING = 0.5;
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float3 dtt = float3(0.005,0.005,0.005);
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string preprocessTechique : PREPROCESSTECHNIQUE = "SaL";
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string combineTechique : COMBINETECHNIQUE = "AA";
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VERTEX_STUFF4 PASS1_VERTEX (float3 p : POSITION, float2 tc : TEXCOORD0)
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{
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VERTEX_STUFF4 OUT = (VERTEX_STUFF4)0;
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float dx = ps.x*0.5;
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float dy = ps.y*0.5;
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float2 d1 = float2( dx,dy);
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float2 d2 = float2(-dx,dy);
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OUT.coord = mul(float4(p,1),WorldViewProjection);
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OUT.CT = tc;
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OUT.t1.xy = float2(tc).xy - d1;
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OUT.t2.xy = float2(tc).xy - d2;
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OUT.t3.xy = float2(tc).xy + d1;
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OUT.t4.xy = float2(tc).xy + d2;
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return OUT;
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}
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float4 PASS1_FRAGMENT ( in VERTEX_STUFF4 VAR ) : COLOR
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{
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float2 x = float2(ps.x*0.5,0);
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float2 y = float2(0,ps.y*0.5);
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float3 c00, c02, c20, c22, c11, u, d, r, l;
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float m1, m2;
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c00 = tex2D(s_p, VAR.t1.xy-y).xyz;
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c20 = tex2D(s_p, VAR.t2.xy-y).xyz;
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c02 = tex2D(s_p, VAR.t4.xy-y).xyz;
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c22 = tex2D(s_p, VAR.t3.xy-y).xyz;
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m1 = dot(abs(c00-c22),dt)+0.001;
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m2 = dot(abs(c02-c20),dt)+0.001;
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u = (m2*(c00+c22)+m1*(c02+c20))/(m1+m2);
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c00 = tex2D(s_p, VAR.t1.xy+y).xyz;
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c20 = tex2D(s_p, VAR.t2.xy+y).xyz;
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c02 = tex2D(s_p, VAR.t4.xy+y).xyz;
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c22 = tex2D(s_p, VAR.t3.xy+y).xyz;
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m1 = dot(abs(c00-c22),dt)+0.001;
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m2 = dot(abs(c02-c20),dt)+0.001;
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d = (m2*(c00+c22)+m1*(c02+c20))/(m1+m2);
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c00 = tex2D(s_p, VAR.t1.xy-x).xyz;
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c20 = tex2D(s_p, VAR.t2.xy-x).xyz;
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c02 = tex2D(s_p, VAR.t4.xy-x).xyz;
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c22 = tex2D(s_p, VAR.t3.xy-x).xyz;
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m1 = dot(abs(c00-c22),dt)+0.001;
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m2 = dot(abs(c02-c20),dt)+0.001;
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l = (m2*(c00+c22)+m1*(c02+c20))/(m1+m2);
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c00 = tex2D(s_p, VAR.t1.xy+x).xyz;
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c20 = tex2D(s_p, VAR.t2.xy+x).xyz;
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c02 = tex2D(s_p, VAR.t4.xy+x).xyz;
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c22 = tex2D(s_p, VAR.t3.xy+x).xyz;
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m1 = dot(abs(c00-c22),dt)+0.001;
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m2 = dot(abs(c02-c20),dt)+0.001;
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r = (m2*(c00+c22)+m1*(c02+c20))/(m1+m2);
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float3 d11 = 0.125*(u+d+r+l);
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float2 dx = float2(0.5*ps.x,0.0);
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float2 dy = float2(0.0,0.5*ps.y);
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float2 g1 = float2(0.5*ps.x,0.5*ps.y);
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float2 g2 = float2(-0.5*ps.x,0.5*ps.y);
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float2 pC4 = VAR.CT;
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// Reading the texels
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float3 c10,c01,c21,c12;
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c00 = tex2D(s_p,pC4-g1).xyz;
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c10 = tex2D(s_p,pC4-dy).xyz;
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c20 = tex2D(s_p,pC4-g2).xyz;
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c01 = tex2D(s_p,pC4-dx).xyz;
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c11 = tex2D(s_p,pC4 ).xyz;
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c21 = tex2D(s_p,pC4+dx).xyz;
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c02 = tex2D(s_p,pC4+g2).xyz;
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c12 = tex2D(s_p,pC4+dy).xyz;
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c22 = tex2D(s_p,pC4+g1).xyz;
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float d1=dot(abs(c00-c22),dt)+0.001;
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float d2=dot(abs(c20-c02),dt)+0.001;
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float hl=dot(abs(c01-c21),dt)+0.001;
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float vl=dot(abs(c10-c12),dt)+0.001;
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float k1=hl+vl;
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float k2=d1+d2;
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float3 t1=(hl*(c10+c12)+vl*(c01+c21)+0.0*k1*c11)/(2.0*(hl+vl));
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float3 t2=(d1*(c20+c02)+d2*(c00+c22)+0.0*k2*c11)/(2.0*(d1+d2));
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k1=dot(abs(t1-d11),dt)+0.001;
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k2=dot(abs(t2-d11),dt)+0.001;
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c11 = (k1*t2 + k2*t1)/(k1+k2);
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float3 mn1 = min(min(c00,c01),c02);
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float3 mn2 = min(min(c10,c11),c12);
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float3 mn3 = min(min(c20,c21),c22);
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float3 mx1 = max(max(c00,c01),c02);
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float3 mx2 = max(max(c10,c11),c12);
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float3 mx3 = max(max(c20,c21),c22);
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mn1 = min(min(mn1,mn2),mn3);
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mx1 = max(max(mx1,mx2),mx3);
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float filterparam = 1.7;
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float3 dif1 = abs(c11-mn1) + 0.001*dt;
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float3 dif2 = abs(c11-mx1) + 0.001*dt;
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dif1=float3(pow(dif1.x,filterparam),pow(dif1.y,filterparam),pow(dif1.z,filterparam));
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dif2=float3(pow(dif2.x,filterparam),pow(dif2.y,filterparam),pow(dif2.z,filterparam));
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c11.r = (dif1.x*mx1.x + dif2.x*mn1.x)/(dif1.x + dif2.x);
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c11.g = (dif1.y*mx1.y + dif2.y*mn1.y)/(dif1.y + dif2.y);
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c11.b = (dif1.z*mx1.z + dif2.z*mn1.z)/(dif1.z + dif2.z);
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return float4(c11,1);
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}
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VERTEX_STUFF0 PASS2_VERTEX (float3 p : POSITION, float2 tc : TEXCOORD0)
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{
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VERTEX_STUFF0 OUT = (VERTEX_STUFF0)0;
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float dx = 0.5*ps.x;
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float dy = 0.5*ps.y;
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OUT.coord = mul(float4(p,1),WorldViewProjection);
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OUT.CT = tc;
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OUT.t1.xy = tc + float2(-dx, 0);
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OUT.t2.xy = tc + float2( dx, 0);
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OUT.t3.xy = tc + float2( 0,-dy);
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OUT.t4.xy = tc + float2( 0, dy);
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OUT.t1.zw = tc + float2(-dx,-dy);
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OUT.t2.zw = tc + float2(-dx, dy);
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OUT.t3.zw = tc + float2( dx,-dy);
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OUT.t4.zw = tc + float2( dx, dy);
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return OUT;
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}
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float4 PASS2_FRAGMENT ( in VERTEX_STUFF0 VAR ) : COLOR
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{
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half3 c00 = tex2D(w_l, VAR.t1.zw).xyz;
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half3 c10 = tex2D(w_l, VAR.t3.xy).xyz;
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half3 c20 = tex2D(w_l, VAR.t3.zw).xyz;
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half3 c01 = tex2D(w_l, VAR.t1.xy).xyz;
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half3 c11 = tex2D(w_l, VAR.CT).xyz;
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half3 c21 = tex2D(w_l, VAR.t2.xy).xyz;
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half3 c02 = tex2D(w_l, VAR.t2.zw).xyz;
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half3 c12 = tex2D(w_l, VAR.t4.xy).xyz;
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half3 c22 = tex2D(w_l, VAR.t4.zw).xyz;
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float d1 = dot(abs(c00-c22),dt)+0.001;
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float d2 = dot(abs(c20-c02),dt)+0.001;
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float hl = dot(abs(c01-c21),dt)+0.001;
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float vl = dot(abs(c10-c12),dt)+0.001;
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float3 mn1 = min (min (c00,c01), c02);
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float3 mn2 = min (min (c10,c11), c12);
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float3 mn3 = min (min (c20,c21), c22);
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float3 mx1 = max (max (c00,c01), c02);
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float3 mx2 = max (max (c10,c11), c12);
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float3 mx3 = max (max (c20,c21), c22);
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mn1 = min(min(mn1,mn2),mn3);
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mx1 = max(max(mx1,mx2),mx3);
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float md = d1+d2; float mc = hl+vl;
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hl*= md;vl*= md; d1*= mc;d2*= mc;
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float ww = d1+d2+vl+hl;
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c11=(hl*(c10+c12)+vl*(c01+c21)+d1*(c20+c02)+d2*(c00+c22)+ww*c11)/(3.0*ww);
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float3 dif1 = abs(c11-mn1) + dtt; float df1 = dot(dif1,dt);
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float3 dif2 = abs(c11-mx1) + dtt; float df2 = dot(dif2,dt);
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//float filterparam = 5.0;
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float3 dif = mx1-mn1;
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float filterparam = clamp(8.0*max(dif.x,max(dif.y,dif.z)+0.1),1.0,6.0);
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df1=pow(df1,filterparam);
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df2=pow(df2,filterparam);
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c11 = (df2*mn1 + df1*mx1)/(df1+df2);
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return float4(c11,1);
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}
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technique SaL
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{
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pass P0
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{
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VertexShader = compile vs_3_0 PASS1_VERTEX();
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PixelShader = compile ps_3_0 PASS1_FRAGMENT();
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}
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}
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technique AA
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{
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pass P0
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{
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VertexShader = compile vs_3_0 PASS2_VERTEX();
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PixelShader = compile ps_3_0 PASS2_FRAGMENT();
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}
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}
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