From b57d98f847116be9fe624ee4f34a7e430818d11f Mon Sep 17 00:00:00 2001
From: Squall Leonhart <danialhorton@hotmail.com>
Date: Sun, 15 Oct 2023 02:09:28 +1100
Subject: [PATCH] brings back the removed If statement and adds the  num_level
 test

This resolves the out of bounds read/writes in the linear swizzler, it brings back the scaled TOTK Recall bug however, pending further work in the block size calculation.

Recall is not glitched in the Dynamic FPS resolution mod to the degree that it is in the native yuzu scaler, this can be a workaround for the time being.


The recall effect is constructed from multiple 320x180 texture slices, it breaking may have a similar origin to https://github.com/Ryujinx/Ryujinx/pull/5640

but it may also be connected to the other deficiencies identified in the Yuzu size calculations, such as no apparent implementation of slice testing for end of slce depth as opposed to full aligned size as implemented in https://github.com/Ryujinx/Ryujinx/pull/5220
---
 src/video_core/texture_cache/util.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/video_core/texture_cache/util.cpp b/src/video_core/texture_cache/util.cpp
index 652097a3d..ec4dd1f68 100644
--- a/src/video_core/texture_cache/util.cpp
+++ b/src/video_core/texture_cache/util.cpp
@@ -167,6 +167,13 @@ template <u32 GOB_EXTENT>
 }
 
 [[nodiscard]] constexpr Extent3D TileShift(const LevelInfo& info, u32 level) {
+    if (level == 0 && info.num_levels == 1) {
+        return Extent3D{
+            .width = info.block.width,
+            .height = info.block.height,
+            .depth = info.block.depth,
+        };
+    }
     const Extent3D blocks = NumLevelBlocks(info, level);
     return Extent3D{
         .width = AdjustTileSize(info.block.width, GOB_SIZE_X, blocks.width),
@@ -1293,9 +1300,9 @@ u32 MapSizeBytes(const ImageBase& image) {
 
 static_assert(CalculateLevelSize(LevelInfo{{1920, 1080, 1}, {0, 2, 0}, {1, 1}, 2, 0, 1}, 0) ==
               0x7f8000);
-static_assert(CalculateLevelSize(LevelInfo{{32, 32, 1}, {0, 0, 4}, {1, 1}, 4, 0, 1}, 0) == 0x4000);
+static_assert(CalculateLevelSize(LevelInfo{{32, 32, 1}, {0, 0, 4}, {1, 1}, 4, 0, 1}, 0) == 0x40000);
 
-static_assert(CalculateLevelSize(LevelInfo{{128, 8, 1}, {0, 4, 0}, {1, 1}, 4, 0, 1}, 0) == 0x4000);
+static_assert(CalculateLevelSize(LevelInfo{{128, 8, 1}, {0, 4, 0}, {1, 1}, 4, 0, 1}, 0) == 0x40000);
 
 static_assert(CalculateLevelOffset(PixelFormat::R8_SINT, {1920, 1080, 1}, {0, 2, 0}, 0, 7) ==
               0x2afc00);