Rename freelist and clean up code.

aster/include/aster/systems/CMakeLists.txt

@@ -7,7 +7,7 @@ INTERFACE
 	"manager.h"
 	"buffer_manager.h"
 	"image_manager.h"
-	"image_view_manager.h"
+	"view_manager.h"
 	"sampler_manager.h"
 	"resource.h"
 	"resource_manager.h"

aster/include/aster/systems/commit_manager.h

@@ -7,17 +7,15 @@
 
 #include "aster/aster.h"
 #include "buffer_manager.h"
-#include "image_manager.h"
+#include "view_manager.h"
 #include "sampler_manager.h"
 
-#include "aster/util/intrusive_slist.h"
+#include "aster/util/freelist.h"
 
 #include "EASTL/deque.h"
 #include "EASTL/intrusive_hash_map.h"
-#include "EASTL/bonus/fixed_ring_buffer.h"
 
 #include "resource.h"
-#include "aster/core/image_view.h"
 
 namespace systems
 {
@@ -33,7 +31,7 @@ class CommitManager
         using Handle = typename Manager::Handle;
         using Resource = ResId<Type>;
 
-        struct Entry : public eastl::intrusive_hash_node_key<Handle>
+        struct Entry : eastl::intrusive_hash_node_key<Handle>
         {
             std::atomic<u32> m_CommitCount;
 
@@ -51,7 +49,7 @@ class CommitManager
                 assert(rc < MaxValue<u32>);
             }
 
-            bool
+            u32
             IsReferenced() const
             {
                 return m_CommitCount;
@@ -87,9 +85,9 @@ class CommitManager
         static_assert(sizeof(Entry) == 24);
 
         eastl::vector<Entry> m_Data;
-        IntrusiveStack<Entry> m_FreeList;
+        FreeList<Entry> m_FreeList;
         eastl::intrusive_hash_map<typename Entry::key_type, Entry, 31, typename Entry::Hash> m_InUse;
-        std::array<IntrusiveStack<Entry>, 4> m_ToDelete;
+        std::array<FreeList<Entry>, 4> m_ToDelete;
         u8 m_ToDeleteIndex = 0;
 
         explicit HandleMapper(const u32 maxCount)
@@ -189,13 +187,14 @@ class CommitManager
         }
 
         void
-        ClearEntries(IntrusiveStack<Entry>& entries)
+        ClearEntries(FreeList<Entry>& entries)
         {
-            while (auto item = entries.TryPop())
+            while (!entries.Empty())
             {
-                Entry &entry = item.value();
+                Entry &entry = entries.Pop();
                 entry.mKey.reset();
                 entry.m_CommitCount = 0;
+                
             }
         }
     };

aster/include/aster/systems/manager.h

@@ -7,6 +7,7 @@
 
 #include "aster/aster.h"
 #include "aster/core/type_traits.h"
+#include "aster/util/freelist.h"
 
 #include <EASTL/intrusive_ptr.h>
 #include <EASTL/vector.h>
@@ -32,10 +33,9 @@ class Manager
         : m_Data{maxCount}
         , m_Device{device}
     {
-        u32 i = 0;
         for (auto &element : m_Data)
         {
-            *Recast<u32 *>(&element) = ++i;
+            m_FreeList.Push(element);
         }
     }
 
@@ -49,7 +49,6 @@ class Manager
             }
         }
 
-        m_FreeHead = 0;
         m_Device = nullptr;
     }
 
@@ -60,11 +59,22 @@ class Manager
     {
         for (i64 i = m_Data.size() - 1; i >= 0; --i)
         {
-            if (auto *pIter = &m_Data[i]; !pIter->IsValid())
+            if (auto *pIter = &m_Data[i]; !pIter->IsReferenced())
             {
                 pIter->Destroy(m_Device);
-                *Recast<u32 *>(pIter) = m_FreeHead;
-                m_FreeHead = i;
+                m_FreeList.Push(*pIter);
+            }
+        }
+    }
+
+    void Sweep() requires concepts::SelfDestructible<Type>
+    {
+        for (i64 i = m_Data.size() - 1; i >= 0; --i)
+        {
+            if (auto *pIter = &m_Data[i]; !pIter->IsValid())
+            {
+                pIter->Destroy();
+                m_FreeList.Push(*pIter);
             }
         }
     }
@@ -73,7 +83,7 @@ class Manager
 
   private:
     eastl::vector<Type> m_Data; // Data also keeps the freelist during 'not use'.
-    u32 m_FreeHead = 0;
+    FreeList<Type> m_FreeList;
 
   protected:
     const Device *m_Device;
@@ -85,17 +95,15 @@ class Manager
     [[nodiscard]] Handle
     Alloc()
     {
-        ERROR_IF(m_FreeHead >= m_Data.size(), "Max buffers allocated.") THEN_ABORT(-1);
+        ERROR_IF(m_FreeList.Empty(), "Max buffers allocated.") THEN_ABORT(-1);
 
-        const auto index = m_FreeHead;
-        Type *pAlloc = &m_Data[index];
-        m_FreeHead = *Recast<u32 *>(pAlloc);
-        memset(pAlloc, 0, sizeof *pAlloc);
+        Type &pAlloc = m_FreeList.Pop();
+        memset(&pAlloc, 0, sizeof pAlloc);
         if constexpr (concepts::SelfDestructible<Type>)
         {
-            pAlloc->m_Device = m_Device;
+            pAlloc.m_Device = m_Device;
         }
-        return {pAlloc};
+        return {&pAlloc};
     }
 };
 } // namespace systems

aster/include/aster/systems/resource_manager.h

@@ -9,7 +9,7 @@
 
 #include "buffer_manager.h"
 #include "image_manager.h"
-#include "image_view_manager.h"
+#include "view_manager.h"
 #include "sampler_manager.h"
 
 namespace systems
@@ -129,6 +129,14 @@ class ResourceManager
         return m_CombinedImageViews;
     }
 
+    void Update()
+    {
+        m_Views.Sweep();
+        m_Images.Sweep();
+        m_Buffers.Sweep();
+        m_Samplers.Sweep();
+    }
+
     ~ResourceManager() = default;
 
     PIN_MEMORY(ResourceManager);

aster/include/aster/systems/view_manager.h

@@ -1,5 +1,5 @@
 // =============================================
-//  Aster: image_manager.h
+//  Aster: view_manager.h
 //  Copyright (c) 2020-2024 Anish Bhobe
 // =============================================
 

aster/include/aster/util/CMakeLists.txt

@@ -5,4 +5,4 @@ cmake_minimum_required(VERSION 3.13)
 target_sources(aster_core 
 INTERFACE
 	"logger.h"
-	"intrusive_slist.h")
+	"freelist.h")

aster/include/aster/util/freelist.h

@@ -0,0 +1,96 @@
+// =============================================
+//  Aster: freelist.h
+//  Copyright (c) 2020-2024 Anish Bhobe
+// =============================================
+
+#pragma once
+
+#include <optional>
+
+struct FreeListNode
+{
+    FreeListNode *m_Next;
+};
+
+template <typename T>
+concept FreeListCapable = sizeof(T) >= sizeof(FreeListNode);
+
+template <FreeListCapable T>
+struct FreeList
+{
+    using Value = T;
+    using Reference = T &;
+    using ConstReference = const T &;
+    using Pointer = T *;
+
+    FreeListNode* m_Top;
+
+    FreeList()
+        : m_Top{nullptr}
+    {
+    }
+
+    FreeList(FreeList &&other) noexcept
+        : m_Top{Take(other.m_Top)}
+    {
+    }
+
+    FreeList &
+    operator=(FreeList &&other) noexcept
+    {
+        if (this == &other)
+            return *this;
+        m_Top = Take(other.m_Top);
+        return *this;
+    }
+
+    DISALLOW_COPY_AND_ASSIGN(FreeList);
+
+    ~FreeList()
+    {
+        m_Top = nullptr;
+    }
+
+    [[nodiscard]] bool
+    Empty() const
+    {
+        return !m_Top;
+    }
+
+    [[nodiscard]] Reference
+    Pop()
+    {
+        assert(m_Top);
+        Reference ref = *Recast<Pointer>(m_Top);
+        m_Top = m_Top->m_Next;
+        return ref;
+    }
+
+    void
+    Push(Reference ref)
+    {
+        auto next = Recast<FreeListNode *>(&ref);
+        next->m_Next = m_Top;
+        m_Top = next;
+    }
+
+    [[nodiscard]] ConstReference
+    Peek() const
+    {
+        assert(m_Top);
+        return *m_Top;
+    }
+
+    [[nodiscard]] Reference
+    Peek()
+    {
+        assert(m_Top);
+        return *m_Top;
+    }
+
+    void
+    Clear()
+    {
+        m_Top = nullptr;
+    }
+};

aster/include/aster/util/intrusive_slist.h

@@ -1,127 +0,0 @@
-// =============================================
-//  Aster: intrusive_slist.h
-//  Copyright (c) 2020-2024 Anish Bhobe
-// =============================================
-
-#pragma once
-
-#include <optional>
-
-template <typename T>
-concept HasNext = requires(T &a) {
-    { a.Next() } -> std::same_as<T *>;
-    { a.SetNext(a) };
-};
-
-struct IntrusiveStackNode
-{
-    IntrusiveStackNode *m_Next;
-
-    IntrusiveStackNode *
-    Next() const
-    {
-        return m_Next;
-    }
-
-    void
-    SetNext(IntrusiveStackNode &a)
-    {
-        m_Next = &a;
-    }
-};
-
-template <HasNext T = IntrusiveStackNode>
-struct IntrusiveStack
-{
-    using Value = T;
-    using Reference = T &;
-    using OptionalRef = std::optional<std::reference_wrapper<T>>;
-    using ConstReference = const T &;
-    using Pointer = T *;
-
-    Pointer m_Top;
-
-    IntrusiveStack()
-        : m_Top{nullptr}
-    {
-    }
-
-    IntrusiveStack(IntrusiveStack &&other) noexcept
-        : m_Top{Take(other.m_Top)}
-    {
-    }
-
-    IntrusiveStack &
-    operator=(IntrusiveStack &&other) noexcept
-    {
-        if (this == &other)
-            return *this;
-        m_Top = Take(other.m_Top);
-        return *this;
-    }
-
-    DISALLOW_COPY_AND_ASSIGN(IntrusiveStack);
-
-    ~IntrusiveStack()
-    {
-        m_Top = nullptr;
-    }
-
-    [[nodiscard]] bool
-    Empty() const
-    {
-        return !m_Top;
-    }
-
-    [[nodiscard]] Reference
-    Pop()
-    {
-        assert(m_Top);
-        Reference ref = *m_Top;
-        m_Top = m_Top->Next();
-        return ref;
-    }
-
-    [[nodiscard]] OptionalRef
-    TryPop()
-    {
-        if (m_Top)
-            return Pop();
-        return std::nullopt;
-    }
-
-    void
-    Push(Reference ref)
-    {
-        ref.SetNext(*m_Top);
-        m_Top = &ref;
-    }
-
-    [[nodiscard]] ConstReference
-    Peek() const
-    {
-        assert(m_Top);
-        return *m_Top;
-    }
-
-    [[nodiscard]] Reference
-    Peek()
-    {
-        assert(m_Top);
-        return *m_Top;
-    }
-
-    [[nodiscard]] OptionalRef
-    TryPeek()
-    {
-        if (m_Top)
-            return Peek();
-        return std::nullopt;
-    }
-
-    void
-    Clear()
-    {
-        m_Top = nullptr;
-    }
-};

aster/src/aster/systems/CMakeLists.txt

@@ -7,6 +7,6 @@ PRIVATE
 "manager.cpp"
 "buffer_manager.cpp"
 "image_manager.cpp"
-"image_view_manager.cpp"
+"view_manager.cpp"
 "sampler_manager.cpp"
 "commit_manager.cpp")

aster/src/aster/systems/commit_manager.cpp

@@ -55,10 +55,10 @@ CommitManager::CommitManager(const Device *device, u32 const maxBuffers, const u
             .type = vk::DescriptorType::eCombinedImageSampler,
             .descriptorCount = maxImages,
         },
-        // vk::DescriptorPoolSize{
-        //     .type = vk::DescriptorType::eStorageImage,
-        //     .descriptorCount = storageTexturesCount,
-        // },
+         vk::DescriptorPoolSize{
+             .type = vk::DescriptorType::eStorageImage,
+             .descriptorCount = maxStorageImages,
+         },
     };
 
     const vk::DescriptorPoolCreateInfo poolCreateInfo = {

aster/src/aster/systems/image_manager.cpp

@@ -1,5 +1,5 @@
 // =============================================
-//  Aster: buffer_manager.cpp
+//  Aster: image_manager.cpp
 //  Copyright (c) 2020-2025 Anish Bhobe
 // =============================================
 

aster/src/aster/systems/view_manager.cpp

@@ -1,9 +1,9 @@
 // =============================================
-//  Aster: image_view_manager.cpp
+//  Aster: view_manager.cpp
 //  Copyright (c) 2020-2025 Anish Bhobe
 // =============================================
 
-#include "systems/image_view_manager.h"
+#include "systems/view_manager.h"
 
 #include "core/device.h"
 

samples/02_box/box.cpp

@@ -23,7 +23,7 @@
 #include "aster/systems/commit_manager.h"
 #include "frame.h"
 #include "stb_image.h"
-#include "aster/systems/image_view_manager.h"
+#include "aster/systems/view_manager.h"
 #include "aster/systems/resource_manager.h"
 
 #include <EASTL/array.h>
@@ -427,6 +427,7 @@ main(int, char **)
     {
         Time::Update();
         commitManager.Update();
+        resourceManager.Update();
 
         camera.m_Model *= rotate(mat4{1.0f}, Cast<f32>(45.0_deg * Time::m_Delta), vec3(0.0f, 1.0f, 0.0f));
         ubo->Write(0, sizeof camera, &camera);

samples/03_model_render/asset_loader.h

@@ -12,7 +12,7 @@
 #include "nodes.h"
 #include "tiny_gltf.h"
 #include "aster/systems/image_manager.h"
-#include "aster/systems/image_view_manager.h"
+#include "aster/systems/view_manager.h"
 #include "aster/systems/resource.h"
 
 namespace systems

samples/03_model_render/model_render.cpp

@@ -432,6 +432,8 @@ main(int, char **)
     while (window.Poll())
     {
         Time::Update();
+        commitManager.Update();
+        resourceManager.Update();
 
         gui::StartBuild();