90 lines
2.7 KiB
Text
90 lines
2.7 KiB
Text
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// MIT License
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// Copyright (c) 2019-2021 bloc97
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// All rights reserved.
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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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//!DESC Anime4K-v4.0-De-Ring-Compute-Statistics
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//!HOOK MAIN
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//!BIND HOOKED
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//!SAVE STATSMAX
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//!COMPONENTS 1
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#define KERNELSIZE 5 //Kernel size, must be an positive odd integer.
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#define KERNELHALFSIZE 2 //Half of the kernel size without remainder. Must be equal to trunc(KERNELSIZE/2).
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float get_luma(vec4 rgba) {
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return dot(vec4(0.299, 0.587, 0.114, 0.0), rgba);
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}
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vec4 hook() {
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float gmax = 0.0;
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for (int i=0; i<KERNELSIZE; i++) {
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float g = get_luma(MAIN_texOff(vec2(i - KERNELHALFSIZE, 0)));
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gmax = max(g, gmax);
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}
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return vec4(gmax, 0.0, 0.0, 0.0);
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}
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//!DESC Anime4K-v4.0-De-Ring-Compute-Statistics
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//!HOOK MAIN
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//!BIND HOOKED
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//!BIND STATSMAX
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//!SAVE STATSMAX
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//!COMPONENTS 1
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#define KERNELSIZE 5 //Kernel size, must be an positive odd integer.
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#define KERNELHALFSIZE 2 //Half of the kernel size without remainder. Must be equal to trunc(KERNELSIZE/2).
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vec4 hook() {
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float gmax = 0.0;
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for (int i=0; i<KERNELSIZE; i++) {
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float g = STATSMAX_texOff(vec2(0, i - KERNELHALFSIZE)).x;
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gmax = max(g, gmax);
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}
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return vec4(gmax, 0.0, 0.0, 0.0);
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}
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//!DESC Anime4K-v4.0-De-Ring-Clamp
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//!HOOK PREKERNEL
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//!BIND HOOKED
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//!BIND STATSMAX
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float get_luma(vec4 rgba) {
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return dot(vec4(0.299, 0.587, 0.114, 0.0), rgba);
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}
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vec4 hook() {
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float current_luma = get_luma(HOOKED_tex(HOOKED_pos));
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float new_luma = min(current_luma, STATSMAX_tex(HOOKED_pos).x);
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//This trick is only possible if the inverse Y->RGB matrix has 1 for every row... (which is the case for BT.709)
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//Otherwise we would need to convert RGB to YUV, modify Y then convert back to RGB.
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return HOOKED_tex(HOOKED_pos) - (current_luma - new_luma);
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}
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