311 lines
7.5 KiB
Text
311 lines
7.5 KiB
Text
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//Anime4K GLSL v0.9
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// MIT License
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// Copyright (c) 2019 bloc97
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//!HOOK SCALED
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//!BIND HOOKED
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//!DESC anime-sharpen_09 (ComputeLuma)
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//!BIND POSTKERNEL
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//!SAVE POSTKERNEL
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float getLum(vec4 rgb) {
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return (rgb.r + rgb.r + rgb.g + rgb.g + rgb.g + rgb.b) / 6;
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}
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vec4 hook() { //Save lum on POSTKERNEL
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vec4 rgb = HOOKED_tex(HOOKED_pos);
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float lum = getLum(rgb);
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return vec4(lum);
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}
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//!HOOK SCALED
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//!BIND HOOKED
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//!DESC anime-sharpen_09 (ThinLines)
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//!BIND POSTKERNEL
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//!BIND NATIVE
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#define strength (min((SCALED_size.x) / (NATIVE_size.x) / 6, 1))
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vec4 getLargest(vec4 cc, vec4 lightestColor, vec4 a, vec4 b, vec4 c) {
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vec4 newColor = cc * (1 - strength) + ((a + b + c) / 3) * strength;
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if (newColor.a > lightestColor.a) {
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return newColor;
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}
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return lightestColor;
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}
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vec4 getRGBL(vec2 pos) {
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return vec4(HOOKED_tex(pos).rgb, POSTKERNEL_tex(pos).x);
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}
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float min3v(vec4 a, vec4 b, vec4 c) {
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return min(min(a.a, b.a), c.a);
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}
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float max3v(vec4 a, vec4 b, vec4 c) {
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return max(max(a.a, b.a), c.a);
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}
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vec4 hook() {
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vec2 d = HOOKED_pt;
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vec4 cc = getRGBL(HOOKED_pos);
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vec4 t = getRGBL(HOOKED_pos + vec2(0, -d.y));
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vec4 tl = getRGBL(HOOKED_pos + vec2(-d.x, -d.y));
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vec4 tr = getRGBL(HOOKED_pos + vec2(d.x, -d.y));
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vec4 l = getRGBL(HOOKED_pos + vec2(-d.x, 0));
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vec4 r = getRGBL(HOOKED_pos + vec2(d.x, 0));
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vec4 b = getRGBL(HOOKED_pos + vec2(0, d.y));
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vec4 bl = getRGBL(HOOKED_pos + vec2(-d.x, d.y));
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vec4 br = getRGBL(HOOKED_pos + vec2(d.x, d.y));
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vec4 lightestColor = cc;
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//Kernel 0 and 4
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float maxDark = max3v(br, b, bl);
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float minLight = min3v(tl, t, tr);
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if (minLight > cc.a && minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, tl, t, tr);
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} else {
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maxDark = max3v(tl, t, tr);
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minLight = min3v(br, b, bl);
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if (minLight > cc.a && minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, br, b, bl);
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}
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}
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//Kernel 1 and 5
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maxDark = max3v(cc, l, b);
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minLight = min3v(r, t, tr);
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if (minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, r, t, tr);
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} else {
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maxDark = max3v(cc, r, t);
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minLight = min3v(bl, l, b);
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if (minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, bl, l, b);
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}
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}
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//Kernel 2 and 6
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maxDark = max3v(l, tl, bl);
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minLight = min3v(r, br, tr);
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if (minLight > cc.a && minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, r, br, tr);
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} else {
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maxDark = max3v(r, br, tr);
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minLight = min3v(l, tl, bl);
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if (minLight > cc.a && minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, l, tl, bl);
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}
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}
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//Kernel 3 and 7
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maxDark = max3v(cc, l, t);
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minLight = min3v(r, br, b);
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if (minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, r, br, b);
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} else {
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maxDark = max3v(cc, r, b);
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minLight = min3v(t, l, tl);
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if (minLight > maxDark) {
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lightestColor = getLargest(cc, lightestColor, t, l, tl);
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}
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}
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return lightestColor;
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}
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//!HOOK SCALED
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//!BIND HOOKED
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//!DESC anime-sharpen_09 (ComputeLuma)
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//!BIND POSTKERNEL
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//!SAVE POSTKERNEL
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float getLum(vec4 rgb) {
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return (rgb.r + rgb.r + rgb.g + rgb.g + rgb.g + rgb.b) / 6;
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}
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vec4 hook() { //Save lum on POSTKERNEL
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vec4 rgb = HOOKED_tex(HOOKED_pos);
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float lum = getLum(rgb);
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return vec4(lum);
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}
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//!HOOK SCALED
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//!BIND HOOKED
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//!DESC anime-sharpen_09 (ComputeGradient)
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//!BIND POSTKERNEL
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//!SAVE POSTKERNEL
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vec4 getRGBL(vec2 pos) {
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return vec4(HOOKED_tex(pos).rgb, POSTKERNEL_tex(pos).x);
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}
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vec4 hook() { //Save grad on POSTKERNEL
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vec2 d = HOOKED_pt;
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//[tl t tr]
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//[ l cc r]
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//[bl b br]
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vec4 cc = getRGBL(HOOKED_pos);
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vec4 t = getRGBL(HOOKED_pos + vec2(0, -d.y));
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vec4 tl = getRGBL(HOOKED_pos + vec2(-d.x, -d.y));
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vec4 tr = getRGBL(HOOKED_pos + vec2(d.x, -d.y));
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vec4 l = getRGBL(HOOKED_pos + vec2(-d.x, 0));
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vec4 r = getRGBL(HOOKED_pos + vec2(d.x, 0));
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vec4 b = getRGBL(HOOKED_pos + vec2(0, d.y));
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vec4 bl = getRGBL(HOOKED_pos + vec2(-d.x, d.y));
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vec4 br = getRGBL(HOOKED_pos + vec2(d.x, d.y));
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//Horizontal Gradient
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//[-1 0 1]
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//[-2 0 2]
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//[-1 0 1]
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float xgrad = (-tl.a + tr.a - l.a - l.a + r.a + r.a - bl.a + br.a);
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//Vertical Gradient
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//[-1 -2 -1]
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//[ 0 0 0]
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//[ 1 2 1]
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float ygrad = (-tl.a - t.a - t.a - tr.a + bl.a + b.a + b.a + br.a);
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//Computes the luminance's gradient and saves it in the unused alpha channel
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return vec4(1 - clamp(sqrt(xgrad * xgrad + ygrad * ygrad), 0, 1));
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}
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//!HOOK SCALED
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//!BIND HOOKED
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//!DESC anime-sharpen_09 (Refine)
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//!BIND POSTKERNEL
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//!BIND NATIVE
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#define strength (min((SCALED_size.x) / (NATIVE_size.x) / 2, 1))
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vec4 getAverage(vec4 cc, vec4 a, vec4 b, vec4 c) {
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return cc * (1 - strength) + ((a + b + c) / 3) * strength;
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}
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vec4 getRGBL(vec2 pos) {
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return vec4(HOOKED_tex(pos).rgb, POSTKERNEL_tex(pos).x);
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}
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float min3v(vec4 a, vec4 b, vec4 c) {
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return min(min(a.a, b.a), c.a);
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}
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float max3v(vec4 a, vec4 b, vec4 c) {
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return max(max(a.a, b.a), c.a);
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}
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vec4 hook() {
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vec2 d = HOOKED_pt;
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vec4 cc = getRGBL(HOOKED_pos);
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vec4 t = getRGBL(HOOKED_pos + vec2(0, -d.y));
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vec4 tl = getRGBL(HOOKED_pos + vec2(-d.x, -d.y));
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vec4 tr = getRGBL(HOOKED_pos + vec2(d.x, -d.y));
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vec4 l = getRGBL(HOOKED_pos + vec2(-d.x, 0));
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vec4 r = getRGBL(HOOKED_pos + vec2(d.x, 0));
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vec4 b = getRGBL(HOOKED_pos + vec2(0, d.y));
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vec4 bl = getRGBL(HOOKED_pos + vec2(-d.x, d.y));
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vec4 br = getRGBL(HOOKED_pos + vec2(d.x, d.y));
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//Kernel 0 and 4
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float maxDark = max3v(br, b, bl);
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float minLight = min3v(tl, t, tr);
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if (minLight > cc.a && minLight > maxDark) {
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return getAverage(cc, tl, t, tr);
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} else {
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maxDark = max3v(tl, t, tr);
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minLight = min3v(br, b, bl);
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if (minLight > cc.a && minLight > maxDark) {
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return getAverage(cc, br, b, bl);
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}
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}
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//Kernel 1 and 5
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maxDark = max3v(cc, l, b);
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minLight = min3v(r, t, tr);
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if (minLight > maxDark) {
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return getAverage(cc, r, t, tr);
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} else {
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maxDark = max3v(cc, r, t);
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minLight = min3v(bl, l, b);
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if (minLight > maxDark) {
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return getAverage(cc, bl, l, b);
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}
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}
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//Kernel 2 and 6
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maxDark = max3v(l, tl, bl);
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minLight = min3v(r, br, tr);
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if (minLight > cc.a && minLight > maxDark) {
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return getAverage(cc, r, br, tr);
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} else {
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maxDark = max3v(r, br, tr);
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minLight = min3v(l, tl, bl);
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if (minLight > cc.a && minLight > maxDark) {
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return getAverage(cc, l, tl, bl);
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}
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}
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//Kernel 3 and 7
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maxDark = max3v(cc, l, t);
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minLight = min3v(r, br, b);
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if (minLight > maxDark) {
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return getAverage(cc, r, br, b);
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} else {
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maxDark = max3v(cc, r, b);
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minLight = min3v(t, l, tl);
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if (minLight > maxDark) {
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return getAverage(cc, t, l, tl);
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}
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}
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return cc;
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}
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