From 7feef45cee72a1fcac1f4e5ffe22b6ace760dc73 Mon Sep 17 00:00:00 2001
From: collecting <collecting@citron-emu.org>
Date: Mon, 6 Oct 2025 02:10:20 +0000
Subject: [PATCH] feat: Add Lanczos

---
 src/video_core/renderer_opengl/present/filters.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/video_core/renderer_opengl/present/filters.cpp b/src/video_core/renderer_opengl/present/filters.cpp
index 819e5d77f..619583300 100644
--- a/src/video_core/renderer_opengl/present/filters.cpp
+++ b/src/video_core/renderer_opengl/present/filters.cpp
@@ -1,9 +1,11 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "video_core/host_shaders/opengl_present_frag.h"
 #include "video_core/host_shaders/opengl_present_scaleforce_frag.h"
 #include "video_core/host_shaders/present_bicubic_frag.h"
+#include "video_core/host_shaders/present_lanczos_frag.h"
 #include "video_core/host_shaders/present_gaussian_frag.h"
 #include "video_core/renderer_opengl/present/filters.h"
 #include "video_core/renderer_opengl/present/util.h"
@@ -36,4 +38,9 @@ std::unique_ptr<WindowAdaptPass> MakeScaleForce(const Device& device) {
         fmt::format("#version 460\n{}", HostShaders::OPENGL_PRESENT_SCALEFORCE_FRAG));
 }
 
+std::unique_ptr<WindowAdaptPass> MakeLanczos(const Device& device) {
+    return std::make_unique<WindowAdaptPass>(device, CreateNearestNeighborSampler(),
+                                             HostShaders::PRESENT_LANCZOS_FRAG);
+}
+
 } // namespace OpenGL