From 309b25d201eeb28a19d2a8c13691aa52e7abfbbf Mon Sep 17 00:00:00 2001
From: emufan4568 <geoster3d@gmail.com>
Date: Mon, 17 Oct 2022 19:44:27 +0300
Subject: [PATCH] renderer_vulkan: Use linear filtering when possible

* Fixes blocky artifacts in Samus Returns
---
 src/video_core/renderer_vulkan/vk_texture_runtime.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/video_core/renderer_vulkan/vk_texture_runtime.cpp b/src/video_core/renderer_vulkan/vk_texture_runtime.cpp
index 6713bc7ed..2b7a8e7e7 100644
--- a/src/video_core/renderer_vulkan/vk_texture_runtime.cpp
+++ b/src/video_core/renderer_vulkan/vk_texture_runtime.cpp
@@ -408,11 +408,17 @@ bool TextureRuntime::BlitTextures(Surface& source, Surface& dest,
                                                         .baseArrayLayer = blit.dst_layer,
                                                         .layerCount = 1},
                                      .dstOffsets = dest_offsets};
+    // Don't use linear filtering on depth attachments
+    const vk::Filter filtering =
+        blit_area.srcSubresource.aspectMask & vk::ImageAspectFlagBits::eDepth ||
+                blit_area.dstSubresource.aspectMask & vk::ImageAspectFlagBits::eDepth
+            ? vk::Filter::eNearest
+            : vk::Filter::eLinear;
 
     vk::CommandBuffer command_buffer = scheduler.GetRenderCommandBuffer();
     command_buffer.blitImage(source.alloc.image, vk::ImageLayout::eTransferSrcOptimal,
                              dest.alloc.image, vk::ImageLayout::eTransferDstOptimal, blit_area,
-                             vk::Filter::eNearest);
+                             filtering);
 
     return true;
 }