mirror of
https://github.com/joncampbell123/dosbox-x.git
synced 2025-05-09 03:41:10 +08:00
132 lines
3.5 KiB
HLSL
132 lines
3.5 KiB
HLSL
/* ############################################################################################
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4XSaL 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 = 1.1;
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float3 dtt = float3(0.001,0.001,0.001);
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string preprocessTechique : PREPROCESSTECHNIQUE = "SaL1";
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string combineTechique : COMBINETECHNIQUE = "SaL2";
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VERTEX_STUFF1 PASS1_VERTEX (float3 p : POSITION, float2 tc : TEXCOORD0)
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{
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VERTEX_STUFF1 OUT = (VERTEX_STUFF1)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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OUT.coord = mul(float4(p,1),WorldViewProjection);
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OUT.CT = tc;
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OUT.UL = tc + float2(-dx,-dy);
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OUT.UR = tc + float2( dx,-dy);
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OUT.DL = tc + float2(-dx, dy);
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OUT.DR = tc + float2( dx, dy);
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return OUT;
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}
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float4 PASS1_FRAGMENT ( in VERTEX_STUFF1 VAR ) : COLOR
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{
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half3 c00 = tex2D(s_p, VAR.UL).xyz;
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half3 c20 = tex2D(s_p, VAR.UR).xyz;
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half3 c02 = tex2D(s_p, VAR.DL).xyz;
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half3 c22 = tex2D(s_p, VAR.DR).xyz;
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half m1=dot(abs(c00-c22),dt)+0.001;
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half m2=dot(abs(c02-c20),dt)+0.001;
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return float4((m1*(c02+c20)+m2*(c22+c00))/(2.0*(m1+m2)),0);
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}
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VERTEX_STUFF1 PASS2_VERTEX (float3 p : POSITION, float2 tc : TEXCOORD0)
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{
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VERTEX_STUFF1 OUT = (VERTEX_STUFF1)0;
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float dx = ps.x*0.25;
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float dy = ps.y*0.25;
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OUT.coord = mul(float4(p,1),WorldViewProjection);
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OUT.CT = tc;
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OUT.UL = tc + float2(-dx,-dy);
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OUT.UR = tc + float2( dx,-dy);
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OUT.DL = tc + float2(-dx, dy);
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OUT.DR = tc + float2( dx, dy);
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return OUT;
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}
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float4 PASS2_FRAGMENT ( in VERTEX_STUFF1 VAR ) : COLOR
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{
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half3 c00 = tex2D(w_l, VAR.UL).xyz;
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half3 c20 = tex2D(w_l, VAR.UR).xyz;
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half3 c02 = tex2D(w_l, VAR.DL).xyz;
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half3 c22 = tex2D(w_l, VAR.DR).xyz;
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half m1=dot(abs(c00-c22),dt)+0.001;
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half m2=dot(abs(c02-c20),dt)+0.001;
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float3 c11 = (m1*(c02+c20)+m2*(c22+c00))/(2.0*(m1+m2));
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float3 mn1 = min(min(c00,c20),min(c02,c22));
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float3 mx1 = max(max(c00,c20),max(c02,c22));
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float3 dif1 = abs(c11-mn1) + dtt;
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float3 dif2 = abs(c11-mx1) + dtt;
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float3 filterparam = float3(2.5,2.5,2.5);
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dif1 = pow(dif1,filterparam);
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dif2 = pow(dif2,filterparam);
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return float4( (dif1.x*mx1.x + dif2.x*mn1.x)/(dif1.x + dif2.x),
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(dif1.y*mx1.y + dif2.y*mn1.y)/(dif1.y + dif2.y),
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(dif1.z*mx1.z + dif2.z*mn1.z)/(dif1.z + dif2.z),1);
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}
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technique SaL1
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{
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pass P0
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{
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VertexShader = compile vs_2_0 PASS1_VERTEX();
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PixelShader = compile ps_2_0 PASS1_FRAGMENT();
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}
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}
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technique SaL2
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{
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pass P0
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{
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VertexShader = compile vs_2_0 PASS2_VERTEX();
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PixelShader = compile ps_2_0 PASS2_FRAGMENT();
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}
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} |