From daa62beb39592a64ea2513459b6f07c008e41a73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Tue, 30 Aug 2022 16:14:28 +0200
Subject: [PATCH] Small tweak in texture matching. Fixes #15927

---
 GPU/Common/TextureCacheCommon.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/GPU/Common/TextureCacheCommon.cpp b/GPU/Common/TextureCacheCommon.cpp
index 96ac9ca8b4..5aa097ecf2 100644
--- a/GPU/Common/TextureCacheCommon.cpp
+++ b/GPU/Common/TextureCacheCommon.cpp
@@ -667,6 +667,14 @@ int TextureCacheCommon::GetBestCandidateIndex(const std::vector<AttachCandidate>
 		const AttachCandidate &candidate = candidates[i];
 		int relevancy = candidate.seqCount;
 
+		// Add a small negative penalty if the texture is currently bound as a framebuffer, and offset is not zero.
+		// Should avoid problems when pingponging two nearby buffers, like in Wipeout Pure in #15927
+		if (candidate.channel == RASTER_COLOR &&
+			(candidate.match.yOffset != 0 || candidate.match.xOffset != 0) &&
+			(candidate.fb->fb_address & 0x1FFFFF) == (gstate.getFrameBufAddress() & 0x1FFFFF)) {
+			relevancy -= 2;
+		}
+
 		if (relevancy > bestRelevancy) {
 			bestRelevancy = relevancy;
 			bestIndex = i;