From 3c8df07e8e367caef8386fd949d6ca44bf2f7ad0 Mon Sep 17 00:00:00 2001
From: lightningterror <18107717+lightningterror@users.noreply.github.com>
Date: Thu, 8 Oct 2026 02:29:49 +0200
Subject: [PATCH] GS/DX12/VK: Fix DoMerge feedbackwrite shader copy sizes.

We are doing a shader copy from dTex to sTex[2] so we should be using the destination sizes from sTex[2].
---
 pcsx2/GS/Renderers/DX12/GSDevice12.cpp   | 2 +-
 pcsx2/GS/Renderers/Vulkan/GSDeviceVK.cpp | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/pcsx2/GS/Renderers/DX12/GSDevice12.cpp b/pcsx2/GS/Renderers/DX12/GSDevice12.cpp
index 18b97826a2..90e71b6a65 100644
--- a/pcsx2/GS/Renderers/DX12/GSDevice12.cpp
+++ b/pcsx2/GS/Renderers/DX12/GSDevice12.cpp
@@ -2264,7 +2264,7 @@ void GSDevice12::DoMerge(GSTexture* sTex[3], GSVector4* sRect, GSTexture* dTex,
 		OMSetRenderTargets(sTex[2], nullptr, nullptr, fbarea);
 		BeginRenderPass(
 			D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE, D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE);
-		DrawStretchRect(full_r, dRect[2], dsize);
+		DrawStretchRect(full_r, dRect[2], fbsize);
 	}
 
 	EndRenderPass();
diff --git a/pcsx2/GS/Renderers/Vulkan/GSDeviceVK.cpp b/pcsx2/GS/Renderers/Vulkan/GSDeviceVK.cpp
index 55e6d65682..6e56ef7afa 100644
--- a/pcsx2/GS/Renderers/Vulkan/GSDeviceVK.cpp
+++ b/pcsx2/GS/Renderers/Vulkan/GSDeviceVK.cpp
@@ -3602,7 +3602,7 @@ void GSDeviceVK::DoMerge(GSTexture* sTex[3], GSVector4* sRect, GSTexture* dTex,
 		SetUtilityPushConstants(yuv_constants, sizeof(yuv_constants));
 		OMSetRenderTargets(sTex[2], nullptr, fbarea);
 		BeginRenderPass(m_utility_color_render_pass_load, fbarea);
-		DrawStretchRect(full_r, dRect[2], dsize);
+		DrawStretchRect(full_r, dRect[2], fbsize);
 	}
 
 	EndRenderPass();