From b91b7aaa0ab7b69fc265dc4bbac1e2d4c2b4f38b Mon Sep 17 00:00:00 2001
From: "Unknown W. Brackets" <checkins@unknownbrackets.org>
Date: Sun, 10 May 2020 15:12:54 -0700
Subject: [PATCH] Draw: Enable backwards compat on D3D11 shaders.

To match/support postshaders.
---
 ext/native/thin3d/thin3d_d3d11.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ext/native/thin3d/thin3d_d3d11.cpp b/ext/native/thin3d/thin3d_d3d11.cpp
index cbb5753fc2..9db30a784f 100644
--- a/ext/native/thin3d/thin3d_d3d11.cpp
+++ b/ext/native/thin3d/thin3d_d3d11.cpp
@@ -817,7 +817,8 @@ ShaderModule *D3D11DrawContext::CreateShaderModule(ShaderStage stage, ShaderLang
 
 	ID3DBlob *compiledCode = nullptr;
 	ID3DBlob *errorMsgs = nullptr;
-	HRESULT result = ptr_D3DCompile(data, dataSize, nullptr, nullptr, nullptr, "main", target, 0, 0, &compiledCode, &errorMsgs);
+	int flags = D3DCOMPILE_ENABLE_BACKWARDS_COMPATIBILITY;
+	HRESULT result = ptr_D3DCompile(data, dataSize, nullptr, nullptr, nullptr, "main", target, flags, 0, &compiledCode, &errorMsgs);
 	if (compiledCode) {
 		compiled = std::string((const char *)compiledCode->GetBufferPointer(), compiledCode->GetBufferSize());
 		compiledCode->Release();