From 2c87a53f113be4e407b83eed5078e3d570001cff Mon Sep 17 00:00:00 2001
From: iwubcode <iwubcode@users.noreply.github.com>
Date: Fri, 29 Sep 2017 22:46:48 -0500
Subject: [PATCH] TextureCacheBase: make sure stitching rectangle bounds don't
 exceed the texture size they are meant to represent

---
 Source/Core/VideoCommon/TextureCacheBase.cpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Source/Core/VideoCommon/TextureCacheBase.cpp b/Source/Core/VideoCommon/TextureCacheBase.cpp
index 4116bc2617..2310631b94 100644
--- a/Source/Core/VideoCommon/TextureCacheBase.cpp
+++ b/Source/Core/VideoCommon/TextureCacheBase.cpp
@@ -1353,11 +1353,31 @@ bool TextureCacheBase::LoadTextureFromOverlappingTextures(TCacheEntry* entry_to_
         srcrect.right = (src_x + copy_width);
         srcrect.bottom = (src_y + copy_height);
 
+        if (static_cast<int>(entry->GetWidth()) == srcrect.GetWidth())
+        {
+          srcrect.right -= 1;
+        }
+
+        if (static_cast<int>(entry->GetHeight()) == srcrect.GetHeight())
+        {
+          srcrect.bottom -= 1;
+        }
+
         dstrect.left = dst_x;
         dstrect.top = dst_y;
         dstrect.right = (dst_x + copy_width);
         dstrect.bottom = (dst_y + copy_height);
 
+        if (static_cast<int>(entry_to_update->GetWidth()) == dstrect.GetWidth())
+        {
+          dstrect.right -= 1;
+        }
+
+        if (static_cast<int>(entry_to_update->GetHeight()) == dstrect.GetHeight())
+        {
+          dstrect.bottom -= 1;
+        }
+
         entry_to_update->texture->CopyRectangleFromTexture(entry->texture.get(), srcrect, dstrect);
 
         updated_entry = true;