From aec2f8db79c8bcd9528633a7a69d0db50b67f58a Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Fri, 7 May 2021 16:04:56 +0100
Subject: [PATCH] Store whether or not a shader uses debug printf

* Shaders that use printf will go through the feedback path, even though they
  may not use arrayed descriptors.
---
 renderdoc/driver/shaders/spirv/spirv_reflect.cpp | 4 ++++
 renderdoc/driver/shaders/spirv/spirv_reflect.h   | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/renderdoc/driver/shaders/spirv/spirv_reflect.cpp b/renderdoc/driver/shaders/spirv/spirv_reflect.cpp
index f236bdc81..152a9031d 100644
--- a/renderdoc/driver/shaders/spirv/spirv_reflect.cpp
+++ b/renderdoc/driver/shaders/spirv/spirv_reflect.cpp
@@ -1186,6 +1186,10 @@ void Reflector::MakeReflection(const GraphicsAPI sourceAPI, const ShaderStage st
     patchData.outTopo = e.executionModes.outTopo;
   }
 
+  for(auto it = extSets.begin(); it != extSets.end(); it++)
+    if(it->second == "NonSemantic.DebugPrintf")
+      patchData.usesPrintf = true;
+
   // sort system value semantics to the start of the list
   struct sig_param_sort
   {
diff --git a/renderdoc/driver/shaders/spirv/spirv_reflect.h b/renderdoc/driver/shaders/spirv/spirv_reflect.h
index e0ee49a32..1ea7823b2 100644
--- a/renderdoc/driver/shaders/spirv/spirv_reflect.h
+++ b/renderdoc/driver/shaders/spirv/spirv_reflect.h
@@ -65,6 +65,8 @@ struct SPIRVPatchData
 
   // the output topology for tessellation and geometry shaders
   Topology outTopo = Topology::Unknown;
+
+  bool usesPrintf = false;
 };
 
 namespace rdcspv