From 8c4d94b570785d40df252ebfb63654742060a3c5 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Mon, 29 Jan 2018 10:54:36 +0100
Subject: [PATCH] [dxbc] Implemented OutputCoverageMask

---
 src/dxbc/dxbc_compiler.cpp | 14 ++++++++++++++
 src/dxbc/dxbc_compiler.h   | 10 ++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/src/dxbc/dxbc_compiler.cpp b/src/dxbc/dxbc_compiler.cpp
index 2d97f5b7..2a566682 100644
--- a/src/dxbc/dxbc_compiler.cpp
+++ b/src/dxbc/dxbc_compiler.cpp
@@ -421,6 +421,15 @@ namespace dxvk {
           "vThreadIndexInGroup");
       } break;
       
+      case DxbcOperandType::OutputCoverageMask: {
+        m_module.enableCapability(spv::CapabilitySampleRateShading);
+        m_ps.builtinSampleMaskOut = emitNewBuiltinVariable({
+          { DxbcScalarType::Uint32, 1, 0 },
+          spv::StorageClassOutput },
+          spv::BuiltInSampleMask,
+          "oDepth");
+      } break;
+      
       case DxbcOperandType::OutputDepth: {
         m_module.setExecutionMode(m_entryPointId,
           spv::ExecutionModeDepthReplacing);
@@ -3656,6 +3665,11 @@ namespace dxvk {
           { DxbcScalarType::Uint32, 1 },
           m_cs.builtinLocalInvocationIndex };
       
+      case DxbcOperandType::OutputCoverageMask:
+        return DxbcRegisterPointer {
+          { DxbcScalarType::Uint32, 1 },
+          m_ps.builtinSampleMaskOut };
+        
       case DxbcOperandType::OutputDepth:
         return DxbcRegisterPointer {
           { DxbcScalarType::Float32, 1 },
diff --git a/src/dxbc/dxbc_compiler.h b/src/dxbc/dxbc_compiler.h
index de517d64..103f9643 100644
--- a/src/dxbc/dxbc_compiler.h
+++ b/src/dxbc/dxbc_compiler.h
@@ -125,10 +125,12 @@ namespace dxvk {
   struct DxbcCompilerPsPart {
     uint32_t functionId = 0;
     
-    uint32_t builtinFragCoord   = 0;
-    uint32_t builtinDepth       = 0;
-    uint32_t builtinIsFrontFace = 0;
-    uint32_t builtinSampleId    = 0;
+    uint32_t builtinFragCoord     = 0;
+    uint32_t builtinDepth         = 0;
+    uint32_t builtinIsFrontFace   = 0;
+    uint32_t builtinSampleId      = 0;
+    uint32_t builtinSampleMaskIn  = 0;
+    uint32_t builtinSampleMaskOut = 0;
     
     std::array<DxbcVectorType, DxbcMaxInterfaceRegs> oTypes;
   };