From 33f1e79c50bb75f496dc3cad0bebbebacd390ab3 Mon Sep 17 00:00:00 2001
From: azhirnov <zh1dron@gmail.com>
Date: Tue, 8 Sep 2020 22:20:39 +0300
Subject: removed StripReflectInfoPass2 - changes will be added to spirv-tools

---
 .../GraphicsEngineVulkan/src/PipelineStateVkImpl.cpp  | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

(limited to 'Graphics/GraphicsEngineVulkan')

diff --git a/Graphics/GraphicsEngineVulkan/src/PipelineStateVkImpl.cpp b/Graphics/GraphicsEngineVulkan/src/PipelineStateVkImpl.cpp
index 6ca51b1e..65150c48 100644
--- a/Graphics/GraphicsEngineVulkan/src/PipelineStateVkImpl.cpp
+++ b/Graphics/GraphicsEngineVulkan/src/PipelineStateVkImpl.cpp
@@ -39,7 +39,7 @@
 
 
 #if !DILIGENT_NO_HLSL
-#    include "SPIRVUtils.hpp"
+#    include "spirv-tools/optimizer.hpp"
 #endif
 
 namespace Diligent
@@ -129,12 +129,25 @@ RenderPassDesc PipelineStateVkImpl::GetImplicitRenderPassDesc(
     return RPDesc;
 }
 
-#if DILIGENT_NO_HLSL
 static std::vector<uint32_t> StripReflection(const std::vector<uint32_t>& OriginalSPIRV)
 {
+#if DILIGENT_NO_HLSL
     return OriginalSPIRV;
-}
+#else
+    std::vector<uint32_t> StrippedSPIRV;
+    spvtools::Optimizer   SpirvOptimizer(SPV_ENV_VULKAN_1_0);
+    // Decorations defined in SPV_GOOGLE_hlsl_functionality1 are the only instructions
+    // removed by strip-reflect-info pass. SPIRV offsets become INVALID after this operation.
+    SpirvOptimizer.RegisterPass(spvtools::CreateStripReflectInfoPass());
+    auto res = SpirvOptimizer.Run(OriginalSPIRV.data(), OriginalSPIRV.size(), &StrippedSPIRV);
+    if (!res)
+    {
+        // Optimized SPIRV may be invalid
+        StrippedSPIRV.clear();
+    }
+    return StrippedSPIRV;
 #endif
+}
 
 PipelineStateVkImpl::PipelineStateVkImpl(IReferenceCounters*            pRefCounters,
                                          RenderDeviceVkImpl*            pDeviceVk,
-- 
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