From cfdfb1952b103f1612d2bc94b6bbd73b0e4425cc Mon Sep 17 00:00:00 2001
From: siystar <siystar@noreply.users.github.com>
Date: Sat, 26 Aug 2023 18:31:35 +0200
Subject: [PATCH] [FIXED] zero descriptorCount passed to DescriptorPool::create

---
 src/vsg/vk/Context.cpp | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/vsg/vk/Context.cpp b/src/vsg/vk/Context.cpp
index 692cfdabd..42c194da3 100644
--- a/src/vsg/vk/Context.cpp
+++ b/src/vsg/vk/Context.cpp
@@ -215,26 +215,30 @@ void Context::reserve(const ResourceRequirements& requirements)
     }
 
     auto required_maxSets = maxSets;
-    auto required_descriptorPoolSizes = descriptorPoolSizes;
-
     if (available_maxSets < required_maxSets)
         required_maxSets -= available_maxSets;
     else
         required_maxSets = 0;
 
-    for (auto& [type, descriptorCount] : required_descriptorPoolSizes)
+    DescriptorPoolSizes required_descriptorPoolSizes;
+    for (const auto& [type, descriptorCount] : descriptorPoolSizes)
     {
+        uint32_t adjustedDescriptorCount = descriptorCount;
         for (auto itr = available_descriptorPoolSizes.begin(); itr != available_descriptorPoolSizes.end(); ++itr)
         {
             if (itr->type == type)
             {
-                if (itr->descriptorCount < descriptorCount)
-                    descriptorCount -= itr->descriptorCount;
+                if (itr->descriptorCount < adjustedDescriptorCount)
+                    adjustedDescriptorCount -= itr->descriptorCount;
                 else
-                    descriptorCount = 0;
-                break;
+                {
+                    adjustedDescriptorCount = 0;
+                    break;
+                }
             }
         }
+        if (adjustedDescriptorCount > 0)
+            required_descriptorPoolSizes.push_back(VkDescriptorPoolSize{type, adjustedDescriptorCount});
     }
 
     if (required_maxSets > 0)