Add 2xsal-level2-xbr shader and presets (#573)

* Add 2xsal-level2-xbr shader and presets

Port of guest' shaders from Cg.

* xbr-xsal presets moved to presets subdir

edge-smoothing/xsal/shaders/2xsal-level2-xbr.slang

@@ -0,0 +1,101 @@
+#version 450
+
+/*
+    Copyright (C) 2016 guest(r) - [email protected]
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation; either version 2
+    of the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*/
+
+layout(push_constant) uniform Push
+{
+    vec4 OutputSize;
+    vec4 OriginalSize;
+    vec4 SourceSize;
+    float AAOFFSET;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+    mat4 MVP;
+} global;
+
+#pragma parameter AAOFFSET "Filter width" 1.0 0.25 2.0 0.125
+
+#define AAOFFSET  params.AAOFFSET
+
+#pragma stage vertex
+layout(location = 0) in  vec4 Position;
+layout(location = 1) in  vec2 TexCoord;
+layout(location = 0) out vec2 vTexCoord;
+
+/*    VERTEX_SHADER    */
+void main()
+{
+    gl_Position = global.MVP * Position;
+    vTexCoord   = TexCoord;
+}
+
+#pragma stage fragment
+layout(location = 0) in  vec2 vTexCoord;
+layout(location = 1) in  vec2 FragCoord;
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+   vec2 texsize = params.SourceSize.xy;
+   float dx = AAOFFSET/texsize.x;
+   float dy = AAOFFSET/texsize.y;
+   vec3 dt = vec3(1.0, 1.0, 1.0);
+
+   vec4 yx = vec4( dx, dy, -dx, -dy);
+   vec4 xh = yx*vec4(3.0,1.0,3.0,1.0);
+   vec4 yv = yx*vec4(1.0,3.0,1.0,3.0);
+
+   vec3 c11 = texture(Source, vTexCoord        ).xyz; 	
+   vec3 s00 = texture(Source, vTexCoord + yx.zw).xyz; 
+   vec3 s20 = texture(Source, vTexCoord + yx.xw).xyz; 
+   vec3 s22 = texture(Source, vTexCoord + yx.xy).xyz; 
+   vec3 s02 = texture(Source, vTexCoord + yx.zy).xyz;
+   vec3 h00 = texture(Source, vTexCoord + xh.zw).xyz; 
+   vec3 h20 = texture(Source, vTexCoord + xh.xw).xyz; 
+   vec3 h22 = texture(Source, vTexCoord + xh.xy).xyz; 
+   vec3 h02 = texture(Source, vTexCoord + xh.zy).xyz;
+   vec3 v00 = texture(Source, vTexCoord + yv.zw).xyz; 
+   vec3 v20 = texture(Source, vTexCoord + yv.xw).xyz; 
+   vec3 v22 = texture(Source, vTexCoord + yv.xy).xyz; 
+   vec3 v02 = texture(Source, vTexCoord + yv.zy).xyz;	 
+
+   float m1=1.0/(dot(abs(s00-s22),dt)+0.00001);
+   float m2=1.0/(dot(abs(s02-s20),dt)+0.00001);
+   float h1=1.0/(dot(abs(s00-h22),dt)+0.00001);
+   float h2=1.0/(dot(abs(s02-h20),dt)+0.00001);
+   float h3=1.0/(dot(abs(h00-s22),dt)+0.00001);
+   float h4=1.0/(dot(abs(h02-s20),dt)+0.00001);
+   float v1=1.0/(dot(abs(s00-v22),dt)+0.00001);
+   float v2=1.0/(dot(abs(s02-v20),dt)+0.00001);
+   float v3=1.0/(dot(abs(v00-s22),dt)+0.00001);
+   float v4=1.0/(dot(abs(v02-s20),dt)+0.00001);
+
+   vec3 t1 = 0.5*(m1*(s00+s22)+m2*(s02+s20))/(m1+m2);
+   vec3 t2 = 0.5*(h1*(s00+h22)+h2*(s02+h20)+h3*(h00+s22)+h4*(h02+s20))/(h1+h2+h3+h4);
+   vec3 t3 = 0.5*(v1*(s00+v22)+v2*(s02+v20)+v3*(v00+s22)+v4*(v02+s20))/(v1+v2+v3+v4);
+
+   float k1 = 1.0/(dot(abs(t1-c11),dt)+0.00001);
+   float k2 = 1.0/(dot(abs(t2-c11),dt)+0.00001);
+   float k3 = 1.0/(dot(abs(t3-c11),dt)+0.00001);
+
+   FragColor = vec4((k1*t1 + k2*t2 + k3*t3)/(k1+k2+k3),1.0);
+}

presets/xbr-xsal/xbr-lv3-2xsal-lv2-aa-soft.slangp

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+shaders = 6
+
+shader0 = ../../edge-smoothing/xbr/shaders/support/linearize.slang
+scale_type0 = "source"
+scale0 = "1.000000"
+filter_linear0 = "false"
+alias0 = XbrSource
+
+shader1 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass0.slang
+scale_type1 = "source"
+scale1 = "1.000000"
+filter_linear1 = "false"
+
+shader2 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass1.slang
+scale_type2 = "source"
+scale2 = "4.000000"
+filter_linear2 = "false"
+
+shader3 = ../../edge-smoothing/xsal/shaders/2xsal-level2-xbr.slang
+filter_linear3 = true
+scale_type3 = source
+scale3 = 1.0
+
+shader4 = ../../anti-aliasing/shaders/aa-shader-4.0.slang
+filter_linear4 = false
+scale_type4 = viewport
+scale4 = 1.0
+
+shader5 = ../../edge-smoothing/xbr/shaders/support/delinearize.slang
+scale_type5 = "source"
+scale5 = "1.000000"
+filter_linear5 = "false"
+
+INTERNAL_RES = 2.0
+AAOFFSET = 0.675
+XBR_BLENDING = 0.0
+WP4 = "0.8"
+InputGamma = "1.000000"
+SMALL_DETAILS = "0.000000"
+KA = "0.950000"
+XBR_EQ_THRESHOLD = "0.450000"
+OutputGamma = "1.000000"
+

presets/xbr-xsal/xbr-lv3-2xsal-lv2-aa.slangp

@@ -0,0 +1,42 @@
+shaders = "6"
+
+shader0 = ../../edge-smoothing/xbr/shaders/support/linearize.slang
+scale_type0 = "source"
+scale0 = "1.000000"
+filter_linear0 = "false"
+alias0 = XbrSource
+
+shader1 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass0.slang
+scale_type1 = "source"
+scale1 = "1.000000"
+filter_linear1 = "false"
+
+shader2 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass1.slang
+scale_type2 = "source"
+scale2 = "5.000000"
+filter_linear2 = "false"
+
+shader3 = ../../edge-smoothing/xsal/shaders/2xsal-level2-xbr.slang
+filter_linear3 = true
+scale_type3 = source
+scale3 = 1.0
+
+shader4 = ../../anti-aliasing/shaders/aa-shader-4.0.slang
+filter_linear4 = false
+scale_type4 = viewport
+scale4 = 1.0
+
+shader5 = ../../edge-smoothing/xbr/shaders/support/delinearize.slang
+scale_type5 = "source"
+scale5 = "1.000000"
+filter_linear5 = "false"
+
+INTERNAL_RES = 2.0
+XBR_BLENDING = 0.0
+WP4 = "0.8"
+InputGamma = "1.000000"
+SMALL_DETAILS = "0.000000"
+KA = "0.950000"
+XBR_EQ_THRESHOLD = "0.450000"
+OutputGamma = "1.000000"
+

presets/xbr-xsal/xbr-lv3-aa-fast.slangp

@@ -0,0 +1,38 @@
+shaders = 4
+
+shader0 = ../../edge-smoothing/xbr/shaders/support/linearize.slang
+scale_type0 = "source"
+scale0 = "1.000000"
+filter_linear0 = "false"
+alias0 = XbrSource
+
+shader1 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass0.slang
+scale_type1 = "source"
+scale1 = "1.000000"
+filter_linear1 = "false"
+
+shader2 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass1.slang
+scale_type2 = "source"
+scale2 = "5.000000"
+filter_linear2 = "false"
+
+shader3 = ../../anti-aliasing/shaders/aa-shader-4.0.slang
+filter_linear3 = false
+scale_type3 = viewport
+scale3 = 1.0
+
+shader4 = ../../edge-smoothing/xbr/shaders/support/delinearize.slang
+scale_type4 = "source"
+scale4 = "1.000000"
+filter_linear4 = "false"
+
+parameters = "INTERNAL_RES"
+
+INTERNAL_RES = 4.0
+XBR_BLENDING = 0.0
+WP4 = "0.8"
+InputGamma = "1.000000"
+SMALL_DETAILS = "0.000000"
+KA = "0.950000"
+XBR_EQ_THRESHOLD = "0.450000"
+OutputGamma = "1.000000"

presets/xbr-xsal/xbr-lv3-aa-soft-fast.slangp

@@ -0,0 +1,38 @@
+shaders = 4
+
+shader0 = ../../edge-smoothing/xbr/shaders/support/linearize.slang
+scale_type0 = "source"
+scale0 = "1.000000"
+filter_linear0 = "false"
+alias0 = XbrSource
+
+shader1 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass0.slang
+scale_type1 = "source"
+scale1 = "1.000000"
+filter_linear1 = "false"
+
+shader2 = ../../edge-smoothing/xbr/shaders/xbr-lv3-multipass/xbr-lv3-pass1.slang
+scale_type2 = "source"
+scale2 = "4.000000"
+filter_linear2 = "false"
+
+shader3 = ../../anti-aliasing/shaders/aa-shader-4.0.slang
+filter_linear3 = false
+scale_type3 = viewport
+scale3 = 1.0
+
+shader4 = ../../edge-smoothing/xbr/shaders/support/delinearize.slang
+scale_type4 = "source"
+scale4 = "1.000000"
+filter_linear4 = "false"
+
+parameters = "INTERNAL_RES"
+
+INTERNAL_RES = 4.0
+XBR_BLENDING = 0.0
+WP4 = "0.8"
+InputGamma = "1.000000"
+SMALL_DETAILS = "0.000000"
+KA = "0.950000"
+XBR_EQ_THRESHOLD = "0.450000"
+OutputGamma = "1.000000"