From a700e928efa016013bbca8f7cdce44a5e4152136 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Tue, 27 Mar 2018 01:41:06 +0200
Subject: [PATCH] [dxbc] Enable MultiViewport capability if needed

Fixes invalid SPIR-V generated since  60d6416e5f8200d5340f75d2655a1478b1472330.
---
 src/dxbc/dxbc_compiler.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/dxbc/dxbc_compiler.cpp b/src/dxbc/dxbc_compiler.cpp
index cbe478378..cc3db954f 100644
--- a/src/dxbc/dxbc_compiler.cpp
+++ b/src/dxbc/dxbc_compiler.cpp
@@ -5177,6 +5177,8 @@ namespace dxvk {
       
       case DxbcSystemValue::ViewportId: {
         if (m_gs.builtinViewportId == 0) {
+          m_module.enableCapability(spv::CapabilityMultiViewport);
+          
           m_gs.builtinViewportId = emitNewBuiltinVariable({
             { DxbcScalarType::Uint32, 1, 0 },
             spv::StorageClassOutput },