From 251ce90e1bc99a9a05a2ebfe548f696c839e7a2a Mon Sep 17 00:00:00 2001
From: Azat Bahawi <azat@bahawi.net>
Date: Wed, 17 Jan 2024 03:35:18 +0300
Subject: 2024-01-17

---
 nixosConfigurations/eonwe/default.nix | 97 +++++++++++++++++++++++++++++++++--
 1 file changed, 93 insertions(+), 4 deletions(-)

(limited to 'nixosConfigurations/eonwe/default.nix')

diff --git a/nixosConfigurations/eonwe/default.nix b/nixosConfigurations/eonwe/default.nix
index 387c51a..9afaf2c 100644
--- a/nixosConfigurations/eonwe/default.nix
+++ b/nixosConfigurations/eonwe/default.nix
@@ -51,10 +51,99 @@ with lib; {
     programs = {
       beets.settings.directory = mkForce "/mnt/udata/music";
 
-      mpv.config = {
-        gpu-api = "vulkan";
-        profile = "gpu-hq";
-        vo = "gpu-next";
+      mpv = {
+        profiles = let
+          mapShaders = shaders: map (args: toString (pkgs.fetchurl args)) shaders;
+          cfl-prediction = mapShaders [
+            {
+              url = "https://raw.githubusercontent.com/Artoriuz/glsl-chroma-from-luma-prediction/471c65dd3915d39e7ef69957ab63e006125fbb88/CfL_Prediction.glsl";
+              sha256 = "sha256-Mgb1KqF1EPPzR3SCVr9S4XzVmZkYEEFIHSp59RZ9wq8=";
+            }
+          ];
+          ravu-lite-ar-r4 = mapShaders [
+            {
+              url = "https://raw.githubusercontent.com/bjin/mpv-prescalers/b3f0a59d68f33b7162051ea5970a5169558f0ea2/compute/ravu-lite-ar-r4.hook";
+              sha256 = "sha256-gyBAv/Sf75CobVUugeTOhy54B9z8iIoJSJgnLopfMsY=";
+            }
+          ];
+          ssimdownscaler = mapShaders [
+            {
+              url = "https://gist.githubusercontent.com/igv/36508af3ffc84410fe39761d6969be10/raw/575d13567bbe3caa778310bd3b2a4c516c445039/SSimDownscaler.glsl";
+              sha256 = "sha256-AEq2wv/Nxo9g6Y5e4I9aIin0plTcMqBG43FuOxbnR1w=";
+            }
+          ];
+        in {
+          # TODO Profile conditionals on width are not working.
+          "qhd-downscale" = {
+            dscale = "lanczos";
+            linear-downscaling = false;
+            glsl-shaders-append = ssimdownscaler;
+          };
+
+          "qhd-upscale" = {
+            glsl-shaders-append = cfl-prediction ++ ravu-lite-ar-r4;
+          };
+        };
+
+        config = {
+          profile = "gpu-hq";
+          vo = "gpu-next";
+          gpu-api = "vulkan";
+          hwdec = "auto";
+
+          deband = true;
+          deband-iterations = 4;
+          deband-threshold = 35;
+          deband-range = 16;
+          deband-grain = 5;
+
+          temporal-dither = true;
+          dither-depth = "auto";
+          dither = "fruit";
+
+          interpolation = true;
+          video-sync = "display-resample";
+          tscale = "oversample";
+
+          target-prim = "auto";
+          target-trc = "auto";
+          vf = "format=colorlevels=full:colormatrix=auto";
+          video-output-levels = "full";
+
+          glsl-shaders-append = map (text: toString (pkgs.writeText "shader.hook" text)) [
+            ''
+              //!HOOK LUMA
+              //!BIND HOOKED
+              #define STRENGTH 48.0
+              float mod289(float x)  { return x - floor(x / 289.0) * 289.0; }
+              float permute(float x) { return mod289((34.0*x + 1.0) * x); }
+              float rand(float x)    { return fract(x / 41.0); }
+              vec4 hook()  {
+                  vec3 _m = vec3(HOOKED_pos, 1.0) + vec3(1.0);
+                  float h = permute(permute(permute(_m.x)+_m.y)+_m.z);
+                  vec4 noise;
+                  noise.x = rand(h);
+                  return HOOKED_tex(HOOKED_pos) + vec4(STRENGTH/8192.0) * (noise - 0.5);
+              }
+            ''
+            ''
+              //!HOOK CHROMA
+              //!BIND HOOKED
+              #define STRENGTH 48.0
+              float mod289(float x)  { return x - floor(x / 289.0) * 289.0; }
+              float permute(float x) { return mod289((34.0*x + 1.0) * x); }
+              float rand(float x)    { return fract(x / 41.0); }
+              vec4 hook()  {
+                  vec3 _m = vec3(HOOKED_pos, 0.5) + vec3(1.0);
+                  float h = permute(permute(permute(_m.x)+_m.y)+_m.z);
+                  vec4 noise;
+                  noise.x = rand(h); h = permute(h);
+                  noise.y = rand(h);
+                  return HOOKED_tex(HOOKED_pos) + vec4(STRENGTH/8192.0) * (noise - 0.5);
+              }
+            ''
+          ];
+        };
       };
     };
 
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