mirror of
https://github.com/joncampbell123/dosbox-x.git
synced 2025-05-08 19:32:39 +08:00
225 lines
6.9 KiB
HLSL
225 lines
6.9 KiB
HLSL
/*
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Hyllian's 5xBR v3.8b Shader
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Copyright (C) 2011 Hyllian/Jararaca - sergiogdb@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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// The name of this effect
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string name : NAME = "FiveXBR3";
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float2 ps : TEXELSIZE;
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float4x4 World : WORLD;
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float4x4 View : VIEW;
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float4x4 Projection : PROJECTION;
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float4x4 Worldview : WORLDVIEW; // world * view
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float4x4 ViewProjection : VIEWPROJECTION; // view * projection
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float4x4 WorldViewProjection : WORLDVIEWPROJECTION; // world * view * projection
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string combineTechique : COMBINETECHNIQUE = "FiveTimesBR3";
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texture SourceTexture : SOURCETEXTURE;
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texture WorkingTexture : WORKINGTEXTURE;
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sampler decal = sampler_state
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{
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Texture = (SourceTexture);
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MinFilter = POINT;
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MagFilter = POINT;
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};
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const static float coef = 2.0;
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const static float4 eq_threshold = float4(15.0, 15.0, 15.0, 15.0);
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const static float y_weight = 48.0;
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const static float u_weight = 7.0;
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const static float v_weight = 6.0;
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const static float3x3 yuv = float3x3(0.299, 0.587, 0.114, -0.169, -0.331, 0.499, 0.499, -0.418, -0.0813);
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const static float3x3 yuv_weighted = float3x3(y_weight*yuv[0], u_weight*yuv[1], v_weight*yuv[2]);
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const static float4 delta = float4(0.2, 0.2, 0.2, 0.2);
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float4 df(float4 A, float4 B)
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{
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return float4(abs(A-B));
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}
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bool4 eq(float4 A, float4 B)
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{
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return (df(A, B) < eq_threshold);
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}
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float4 weighted_distance(float4 a, float4 b, float4 c, float4 d, float4 e, float4 f, float4 g, float4 h)
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{
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return (df(a,b) + df(a,c) + df(d,e) + df(d,f) + 4.0*df(g,h));
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}
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struct out_vertex
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{
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float4 position : POSITION;
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float2 texCoord : TEXCOORD0;
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float4 t1 : TEXCOORD1;
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};
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//
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// Vertex Shader
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//
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out_vertex VS_VERTEX(float3 position : POSITION, float2 texCoord : TEXCOORD0 )
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{
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out_vertex OUT;
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OUT.position = mul(float4(position,1),WorldViewProjection);
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float dx = ps.x;
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float dy = ps.y;
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OUT.texCoord = texCoord;
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OUT.t1.xy = float2( dx, 0); // F
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OUT.t1.zw = float2( 0, dy); // H
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return OUT;
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}
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float4 PS_FRAGMENT (in out_vertex VAR) : COLOR
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{
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bool4 edr, edr_left, edr_up, px; // px = pixel, edr = edge detection rule
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bool4 interp_restriction_lv1, interp_restriction_lv2_left, interp_restriction_lv2_up;
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bool4 nc, nc30, nc60, nc45; // new_color
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float4 fx, fx_left, fx_up;
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float2 fp = frac(VAR.texCoord/ps);
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float2 dx = VAR.t1.xy;
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float2 dy = VAR.t1.zw;
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float3 A = tex2D(decal, VAR.texCoord -dx -dy).xyz;
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float3 B = tex2D(decal, VAR.texCoord -dy).xyz;
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float3 C = tex2D(decal, VAR.texCoord +dx -dy).xyz;
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float3 D = tex2D(decal, VAR.texCoord -dx ).xyz;
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float3 E = tex2D(decal, VAR.texCoord ).xyz;
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float3 F = tex2D(decal, VAR.texCoord +dx ).xyz;
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float3 G = tex2D(decal, VAR.texCoord -dx +dy).xyz;
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float3 H = tex2D(decal, VAR.texCoord +dy).xyz;
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float3 I = tex2D(decal, VAR.texCoord +dx +dy).xyz;
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float3 A1 = tex2D(decal, VAR.texCoord -dx -2.0*dy).xyz;
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float3 C1 = tex2D(decal, VAR.texCoord +dx -2.0*dy).xyz;
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float3 A0 = tex2D(decal, VAR.texCoord -2.0*dx -dy).xyz;
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float3 G0 = tex2D(decal, VAR.texCoord -2.0*dx +dy).xyz;
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float3 C4 = tex2D(decal, VAR.texCoord +2.0*dx -dy).xyz;
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float3 I4 = tex2D(decal, VAR.texCoord +2.0*dx +dy).xyz;
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float3 G5 = tex2D(decal, VAR.texCoord -dx +2.0*dy).xyz;
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float3 I5 = tex2D(decal, VAR.texCoord +dx +2.0*dy).xyz;
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float3 B1 = tex2D(decal, VAR.texCoord -2.0*dy).xyz;
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float3 D0 = tex2D(decal, VAR.texCoord -2.0*dx ).xyz;
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float3 H5 = tex2D(decal, VAR.texCoord +2.0*dy).xyz;
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float3 F4 = tex2D(decal, VAR.texCoord +2.0*dx ).xyz;
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float4 b = mul( float4x3(B, D, H, F), yuv_weighted[0] );
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float4 c = mul( float4x3(C, A, G, I), yuv_weighted[0] );
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float4 e = mul( float4x3(E, E, E, E), yuv_weighted[0] );
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float4 d = b.yzwx;
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float4 f = b.wxyz;
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float4 g = c.zwxy;
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float4 h = b.zwxy;
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float4 i = c.wxyz;
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float4 i4 = mul( float4x3(I4, C1, A0, G5), yuv_weighted[0] );
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float4 i5 = mul( float4x3(I5, C4, A1, G0), yuv_weighted[0] );
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float4 h5 = mul( float4x3(H5, F4, B1, D0), yuv_weighted[0] );
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float4 f4 = h5.yzwx;
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float4 Ao = float4( 1.0, -1.0, -1.0, 1.0 );
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float4 Bo = float4( 1.0, 1.0, -1.0,-1.0 );
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float4 Co = float4( 1.5, 0.5, -0.5, 0.5 );
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float4 Ax = float4( 1.0, -1.0, -1.0, 1.0 );
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float4 Bx = float4( 0.5, 2.0, -0.5,-2.0 );
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float4 Cx = float4( 1.0, 1.0, -0.5, 0.0 );
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float4 Ay = float4( 1.0, -1.0, -1.0, 1.0 );
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float4 By = float4( 2.0, 0.5, -2.0,-0.5 );
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float4 Cy = float4( 2.0, 0.0, -1.0, 0.5 );
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fx = Ao * fp.y + Bo * fp.x;
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fx_left = Ax * fp.y + Bx * fp.x;
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fx_up = Ay * fp.y + By * fp.x;
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interp_restriction_lv1 = ((e!=f) && (e!=h) && ( !eq(f,b) && !eq(h,d) || eq(e,i) && !eq(f,i4) && !eq(h,i5) || eq(e,g) || eq(e,c) ) );
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interp_restriction_lv2_left = ((e!=g) && (d!=g));
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interp_restriction_lv2_up = ((e!=c) && (b!=c));
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float4 fx45 = smoothstep(Co - delta, Co + delta, fx);
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float4 fx30 = smoothstep(Cx - delta, Cx + delta, fx_left);
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float4 fx60 = smoothstep(Cy - delta, Cy + delta, fx_up);
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edr = (weighted_distance( e, c, g, i, h5, f4, h, f) < weighted_distance( h, d, i5, f, i4, b, e, i)) && interp_restriction_lv1;
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edr_left = ((coef*df(f,g)) <= df(h,c)) && interp_restriction_lv2_left;
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edr_up = (df(f,g) >= (coef*df(h,c))) && interp_restriction_lv2_up;
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nc45 = ( edr && bool4(fx45) );
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nc30 = ( edr && edr_left && bool4(fx30) );
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nc60 = ( edr && edr_up && bool4(fx60) );
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px = (df(e,f) <= df(e,h));
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nc = (nc30 || nc60 || nc45);
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float blend = 0.0;
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half3 pix = E;
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float4 final45 = dot(float4(nc45), fx45);
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float4 final30 = dot(float4(nc30), fx30);
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float4 final60 = dot(float4(nc60), fx60);
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float4 maximo = max(max(final30, final60), final45);
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if (nc.x) {pix = px.x ? F : H; blend = maximo.x;}
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else if (nc.y) {pix = px.y ? B : F; blend = maximo.y;}
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else if (nc.z) {pix = px.z ? D : B; blend = maximo.z;}
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else if (nc.w) {pix = px.w ? H : D; blend = maximo.w;}
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half3 res = lerp(E, pix, blend);
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return float4(res, 1.0);
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}
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//
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// Technique
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//
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technique FiveTimesBR3
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{
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pass P0
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{
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// shaders
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VertexShader = compile vs_3_0 VS_VERTEX();
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PixelShader = compile ps_3_0 PS_FRAGMENT();
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}
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}
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