From ede25a5eccbf72baa2cf248dcc29f30a9b8fdbaf Mon Sep 17 00:00:00 2001
From: lightningterror <18107717+lightningterror@users.noreply.github.com>
Date: Sat, 31 Jan 2026 05:45:51 +0100
Subject: [PATCH] GS/DX11: Check if RGBA16 UNORM supports hw blending.

If not then use DXGI_FORMAT_R16G16B16A16_FLOAT,
it will be less precise but will still work on feature level 10.0 and some 10.1 gpus and allow for hardware blending.
---
 pcsx2/GS/Renderers/DX11/GSDevice11.cpp | 12 +++++++++++-
 pcsx2/GS/Renderers/DX11/GSDevice11.h   |  1 +
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/pcsx2/GS/Renderers/DX11/GSDevice11.cpp b/pcsx2/GS/Renderers/DX11/GSDevice11.cpp
index c95d41a3d2..35c9938b99 100644
--- a/pcsx2/GS/Renderers/DX11/GSDevice11.cpp
+++ b/pcsx2/GS/Renderers/DX11/GSDevice11.cpp
@@ -38,6 +38,15 @@ static bool SupportsTextureFormat(ID3D11Device* dev, DXGI_FORMAT format)
 	return (support & D3D11_FORMAT_SUPPORT_TEXTURE2D) != 0;
 }
 
+static bool IsTextureFormatHWBlendable(ID3D11Device* dev, DXGI_FORMAT format)
+{
+	UINT support;
+	if (FAILED(dev->CheckFormatSupport(format, &support)))
+		return false;
+
+	return (support & D3D11_FORMAT_SUPPORT_RENDER_TARGET) && (support & D3D11_FORMAT_SUPPORT_BLENDABLE);
+}
+
 GSDevice11::GSDevice11()
 {
 	memset(&m_state, 0, sizeof(m_state));
@@ -601,6 +610,7 @@ void GSDevice11::SetFeatures(IDXGIAdapter1* adapter)
 	                         D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
 
 	m_conservative_depth = (m_feature_level >= D3D_FEATURE_LEVEL_11_0);
+	m_rgba16_unorm_hw_blend = IsTextureFormatHWBlendable(m_dev.get(), DXGI_FORMAT_R16G16B16A16_UNORM);
 }
 
 bool GSDevice11::HasSurface() const
@@ -2624,7 +2634,7 @@ void GSDevice11::RenderHW(GSHWDrawConfig& config)
 		{
 			config.colclip_update_area = config.drawarea;
 
-			colclip_rt = CreateRenderTarget(rtsize.x, rtsize.y, GSTexture::Format::ColorClip, false);
+			colclip_rt = CreateRenderTarget(rtsize.x, rtsize.y, m_rgba16_unorm_hw_blend ? GSTexture::Format::ColorClip : GSTexture::Format::ColorHDR, false);
 			if (!colclip_rt)
 			{
 				Console.Warning("D3D11: Failed to allocate ColorClip render target, aborting draw.");
diff --git a/pcsx2/GS/Renderers/DX11/GSDevice11.h b/pcsx2/GS/Renderers/DX11/GSDevice11.h
index f25e8482c7..58985acafe 100644
--- a/pcsx2/GS/Renderers/DX11/GSDevice11.h
+++ b/pcsx2/GS/Renderers/DX11/GSDevice11.h
@@ -137,6 +137,7 @@ private:
 	bool m_using_allow_tearing = false;
 	bool m_is_exclusive_fullscreen = false;
 	bool m_conservative_depth = false;
+	bool m_rgba16_unorm_hw_blend = false;
 
 	struct
 	{