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Added SHResourceManager and Generic Handle #104

Merged
Pycorax merged 3 commits from SP3-13-ResourceManager into main 2022-10-21 17:11:51 +08:00
Conversation 0 Commits 3 Files Changed 12 +549 -40
12 changed files with 549 additions and 40 deletions
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43
SHADE_Application/src/Scenes/SBTestScene.cpp
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@ -1,4 +1,4 @@
#include "SBpch.h"
#include "SBpch.h"
#include "SBTestScene.h"
#include "ECS_Base/Managers/SHSystemManager.h"
@ -14,6 +14,7 @@
#include "Physics/Components/SHColliderComponent.h"
#include "Assets/SHAssetManager.h"
#include "Resource/SHResourceManager.h"
using namespace SHADE;
@ -40,34 +41,22 @@ namespace Sandbox
const auto CUBE_MESH = SHADE::SHPrimitiveGenerator::Cube(*graphicsSystem);
//Test Racoon mesh
auto meshes = SHADE::SHAssetManager::GetAllMeshes();
std::vector<Handle<SHMesh>> handles;
for (auto const& mesh : meshes)
{
if (mesh.header.meshName == "Cube.012")
{
handles.push_back(graphicsSystem->AddMesh(
mesh.header.vertexCount,
mesh.vertexPosition.data(),
mesh.texCoords.data(),
mesh.vertexTangent.data(),
mesh.vertexNormal.data(),
mesh.header.indexCount,
mesh.indices.data()
));
}
}
graphicsSystem->BuildMeshBuffers();
// Load Textures
auto textures = SHADE::SHAssetManager::GetAllTextures();
std::vector<Handle<SHTexture>> texHandles;
for (const auto& tex : textures)
for (const auto& asset : SHAssetManager::GetAllAssets())
{
auto texture = graphicsSystem->Add(tex);
texHandles.push_back(texture);
switch (asset.type)
{
case AssetType::MESH:
if (asset.name == "Cube.012")
handles.emplace_back(SHResourceManager::LoadOrGet<SHMesh>(asset.id));
break;
case AssetType::TEXTURE:
texHandles.emplace_back(SHResourceManager::LoadOrGet<SHTexture>(asset.id));
break;
}
graphicsSystem->BuildTextures();
}
SHResourceManager::FinaliseChanges();
// Create Materials
auto matInst = graphicsSystem->AddOrGetBaseMaterialInstance();
@ -78,8 +67,8 @@ namespace Sandbox
// Create Stress Test Objects
static const SHVec3 TEST_OBJ_SCALE = SHVec3::One * 0.5f;
constexpr int NUM_ROWS = 10;
constexpr int NUM_COLS = 10;
constexpr int NUM_ROWS = 0;
constexpr int NUM_COLS = 0;
static const SHVec3 TEST_OBJ_SPACING = { 0.1f, 0.1f, 0.1f };
static const SHVec3 TEST_OBJ_START_POS = { -(NUM_COLS / 2 * TEST_OBJ_SPACING.x) + 1.0f, -2.0f, -1.0f };

5
SHADE_Engine/src/Assets/SHAssetManager.cpp
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@ -62,6 +62,11 @@ namespace SHADE
}
}
void SHAssetManager::Unload(AssetID assetId) noexcept
{
// TODO
}
AssetPath SHAssetManager::GenerateLocalPath(AssetPath path) noexcept
{
if (!IsRecognised(path.extension().string().c_str()))

1
SHADE_Engine/src/Assets/SHAssetManager.h
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@ -32,6 +32,7 @@ namespace SHADE
* \brief Deallocate all memory used by resource data
****************************************************************************/
static void Unload() noexcept;
static void Unload(AssetID assetId) noexcept;
/****************************************************************************
* \brief Load all resources that are in the folder

6
SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.cpp
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@ -585,19 +585,19 @@ namespace SHADE
/*---------------------------------------------------------------------------------*/
/* Texture Registration Functions */
/*---------------------------------------------------------------------------------*/
Handle<SHTexture> SHGraphicsSystem::Add(const SHTextureAsset& texAsset)
Handle<SHTexture> SHGraphicsSystem::AddTexture(const SHTextureAsset& texAsset)
{
auto sampler = samplerCache.GetSampler(device, SHVkSamplerParams { .maxLod = static_cast<float>(texAsset.mipOffsets.size()) });
return texLibrary.Add(texAsset, sampler);
}
SHADE::Handle<SHADE::SHTexture> SHGraphicsSystem::Add(uint32_t pixelCount, const SHTexture::PixelChannel* const pixelData, uint32_t width, uint32_t height, SHTexture::TextureFormat format, std::vector<uint32_t> mipOffsets)
SHADE::Handle<SHADE::SHTexture> SHGraphicsSystem::AddTexture(uint32_t pixelCount, const SHTexture::PixelChannel* const pixelData, uint32_t width, uint32_t height, SHTexture::TextureFormat format, std::vector<uint32_t> mipOffsets)
{
auto sampler = samplerCache.GetSampler(device, SHVkSamplerParams{ .maxLod = static_cast<float>(mipOffsets.size()) });
return texLibrary.Add(pixelCount, pixelData, width, height, format, mipOffsets, sampler);
}
void SHGraphicsSystem::Remove(Handle<SHTexture> tex)
void SHGraphicsSystem::RemoveTexture(Handle<SHTexture> tex)
{
texLibrary.Remove(tex);
}

6
SHADE_Engine/src/Graphics/MiddleEnd/Interface/SHGraphicsSystem.h
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@ -231,8 +231,8 @@ namespace SHADE
*/
/*******************************************************************************/
Handle<SHTexture> Add(const SHTextureAsset& texAsset);
Handle<SHTexture> Add(uint32_t pixelCount, const SHTexture::PixelChannel* const pixelData, uint32_t width, uint32_t height, SHTexture::TextureFormat format, std::vector<uint32_t> mipOffsets);
Handle<SHTexture> AddTexture(const SHTextureAsset& texAsset);
Handle<SHTexture> AddTexture(uint32_t pixelCount, const SHTexture::PixelChannel* const pixelData, uint32_t width, uint32_t height, SHTexture::TextureFormat format, std::vector<uint32_t> mipOffsets);
/*******************************************************************************/
/*!
@ -246,7 +246,7 @@ namespace SHADE
*/
/*******************************************************************************/
void Remove(Handle<SHTexture> tex);
void RemoveTexture(Handle<SHTexture> tex);
/***************************************************************************/
/*!

62
SHADE_Engine/src/Resource/SHHandle.h
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@ -8,6 +8,7 @@ namespace SHADE
/*---------------------------------------------------------------------------------*/
/* Forward Declarations */
/*---------------------------------------------------------------------------------*/
class SHResourceLibraryBase;
template<typename T>
class SHResourceLibrary;
@ -25,6 +26,20 @@ namespace SHADE
using std::runtime_error::runtime_error;
};
/// <summary>
/// Exception thrown when a generic Handle is being casted to the wrong type.
/// </summary>
class BadHandleCastException : std::runtime_error
{
public:
/*-----------------------------------------------------------------------------*/
/* Constructors */
/*-----------------------------------------------------------------------------*/
BadHandleCastException()
: std::runtime_error("Attempted to cast a generic Handle to the wrong type. ")
{}
};
/// <summary>
/// Base implementation of the Handle that is not templated to allow for holding
/// generic non-type-specific Handles.
@ -80,7 +95,7 @@ namespace SHADE
/// Generic implementation of a Handle object
/// </summary>
/// <typeparam name="T">Type of the handle.</typeparam>
template<typename T>
template<typename T = void>
class Handle : public HandleBase
{
public:
@ -88,6 +103,16 @@ namespace SHADE
/* Constructors */
/*-----------------------------------------------------------------------------*/
Handle() = default;
/// <summary>
/// Converts a generic/void Handle to a specific type.
/// Runtime type checking is enabled to ensure that Handles are only being casted
/// to the correct type.
/// </summary>
/// <param name="genericHandle">Generic handle to convert.</param>
/// <exception cref="std::bad_cast">
/// Thrown if an invalid conversion is made.
/// </exception>
explicit Handle(const Handle<void>& genericHandle);
~Handle() = default;
/*-----------------------------------------------------------------------------*/
@ -146,6 +171,41 @@ namespace SHADE
/* Friend Declarations */
/*-----------------------------------------------------------------------------*/
friend class SHResourceLibrary<T>;
friend class Handle<void>;
};
/// <summary>
/// Template Specialization for Handle that represents a type-less Handle.
/// </summary>
template<>
class Handle<void> : public HandleBase
{
public:
/*-----------------------------------------------------------------------------*/
/* Constructors */
/*-----------------------------------------------------------------------------*/
Handle() = default;
template<typename T>
explicit Handle(const Handle<T>& handle);
~Handle() = default;
/*-----------------------------------------------------------------------------*/
/* Overloaded Operators */
/*-----------------------------------------------------------------------------*/
template<typename T>
inline bool operator==(const Handle<T>& rhs) const noexcept;
protected:
/*-----------------------------------------------------------------------------*/
/* Data Members */
/*-----------------------------------------------------------------------------*/
SHResourceLibraryBase* library = nullptr;
/*-----------------------------------------------------------------------------*/
/* Friend Declarations */
/*-----------------------------------------------------------------------------*/
template<typename T>
friend class Handle;
};
/// <summary>

39
SHADE_Engine/src/Resource/SHHandle.hpp
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@ -21,6 +21,20 @@ namespace SHADE
return id.Raw != INVALID_ID.Raw;
}
/*---------------------------------------------------------------------------------*/
/* Handle<T> - Constructors */
/*---------------------------------------------------------------------------------*/
template<typename T>
Handle<T>::Handle(const Handle<void>& genericHandle)
: library { reinterpret_cast<SHResourceLibrary<T>*>(genericHandle.library) }
{
id = genericHandle.id;
// Check if valid
if (library != nullptr && library->GetType() != typeid(T))
throw BadHandleCastException();
}
/*---------------------------------------------------------------------------------*/
/* Handle<T> - Usage Functions */
/*---------------------------------------------------------------------------------*/
@ -63,6 +77,28 @@ namespace SHADE
return &library->Get(*this);
}
/*---------------------------------------------------------------------------------*/
/* Handle<void> - Constructors */
/*---------------------------------------------------------------------------------*/
template<typename T>
Handle<void>::Handle(const Handle<T>& handle)
: library{ static_cast<SHResourceLibraryBase*>(handle.library) }
{
id = handle.id;
}
/*---------------------------------------------------------------------------------*/
/* Handle<void> - Overloaded Operators */
/*---------------------------------------------------------------------------------*/
template<typename T>
bool SHADE::Handle<void>::operator==(const Handle<T>& rhs) const noexcept
{
return id.Raw == rhs.id.Raw && library == static_cast<void*>(rhs.library);
}
/*---------------------------------------------------------------------------------*/
/* ISelfHandle<T> - Constructors */
/*---------------------------------------------------------------------------------*/
template<typename T>
inline ISelfHandle<T>::ISelfHandle(const ISelfHandle& rhs)
: handle { rhs.handle }
@ -73,6 +109,9 @@ namespace SHADE
: handle { rhs.handle }
{}
/*---------------------------------------------------------------------------------*/
/* ISelfHandle<T> - Overloaded Operators */
/*---------------------------------------------------------------------------------*/
template<typename T>
inline ISelfHandle<T>& ISelfHandle<T>::operator=(const ISelfHandle& rhs)
{

20
SHADE_Engine/src/Resource/SHResourceLibrary.h
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@ -11,13 +11,31 @@
namespace SHADE
{
/// <summary>
/// Base class for SHResourceLibrary that holds information about the library type.
/// </summary>
class SHResourceLibraryBase
{
public:
/*-----------------------------------------------------------------------------*/
/* Getter Functions */
/*-----------------------------------------------------------------------------*/
inline std::type_index GetType() { return libraryType; }
protected:
/*-----------------------------------------------------------------------------*/
/* Data Members */
/*-----------------------------------------------------------------------------*/
std::type_index libraryType = typeid(void);
};
/// <summary>
/// Generic Resource Library for a specified type of Resource. This object will own
/// any resources created using it.
/// </summary>
/// <typeparam name="T">Type of resources that this library stores.</typeparam>
template<typename T>
class SHResourceLibrary
class SHResourceLibrary : public SHResourceLibraryBase
{
public:
/*-----------------------------------------------------------------------------*/

5
SHADE_Engine/src/Resource/SHResourceLibrary.hpp
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@ -13,10 +13,11 @@ namespace SHADE
SHResourceLibrary<T>::SHResourceLibrary()
{
// Type Checking
//static_assert(std::is_copy_assignable_v<T>, "Resource Library's resources must be copy assignable.");
//static_assert(std::is_copy_constructible_v<T>, "Resource Library's resources must be copy constructible.");
static_assert(std::is_move_assignable_v<T>, "Resource Library's resources must be move assignable.");
static_assert(std::is_move_constructible_v<T>, "Resource Library's resources must be move constructible.");
// Keep track of the type for conversions
libraryType = typeid(T);
}
/*---------------------------------------------------------------------------------*/

95
SHADE_Engine/src/Resource/SHResourceManager.cpp Normal file
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@ -0,0 +1,95 @@
/************************************************************************************//*!
\file SHResourceManager.cpp
\author Tng Kah Wei, kahwei.tng, 390009620
\par email: kahwei.tng\@digipen.edu
\date Oct 21, 2022
\brief Contains the definition of the functions of the SHResourceManager static
class.
Copyright (C) 2022 DigiPen Institute of Technology.
Reproduction or disclosure of this file or its contents without the prior written consent
of DigiPen Institute of Technology is prohibited.
*//*************************************************************************************/
#include "SHpch.h"
// Primary Include
#include "SHResourceManager.h"
namespace SHADE
{
/*-----------------------------------------------------------------------------------*/
/* Static Data Member Definitions */
/*-----------------------------------------------------------------------------------*/
SHResourceHub SHResourceManager::resourceHub;
std::unordered_map<std::type_index, std::unordered_map<AssetID, Handle<void>>> SHResourceManager::handlesMap;
std::unordered_map<std::type_index, SHADE::SHResourceManager::HandleAssetMap> SHResourceManager::assetIdMap;
std::unordered_map<std::type_index, std::function<void(AssetID)>> SHResourceManager::typedFreeFuncMap;
std::vector<AssetID> SHResourceManager::loadedAssetData;
/*-----------------------------------------------------------------------------------*/
/* Function Definitions */
/*-----------------------------------------------------------------------------------*/
void SHResourceManager::Unload(AssetID assetId)
{
// Search each library for the asset ID and try to free it
Handle handle;
for (auto& typedHandleMap : handlesMap)
{
if (typedHandleMap.second.contains(assetId))
{
// Save handle for later
handle = typedHandleMap.second[assetId];
// Dispose
typedFreeFuncMap[typedHandleMap.first](assetId);
typedHandleMap.second.erase(assetId);
}
}
// No handles were found
if (!handle)
return;
for (auto& typedAssetIdsMap : assetIdMap)
{
if (typedAssetIdsMap.second.contains(handle))
{
// Dispose
typedAssetIdsMap.second.erase(handle);
}
}
}
void SHResourceManager::FinaliseChanges()
{
SHGraphicsSystem* gfxSystem = SHSystemManager::GetSystem<SHGraphicsSystem>();
if (gfxSystem == nullptr)
throw std::runtime_error("[SHResourceManager] Attempted to load graphics resource without a SHGraphicsSystem installed.");
gfxSystem->BuildMeshBuffers();
gfxSystem->BuildTextures();
// Free CPU Resources
for (auto assetId : loadedAssetData)
{
SHAssetManager::Unload(assetId);
}
loadedAssetData.clear();
}
/*-----------------------------------------------------------------------------------*/
/* Query Functions */
/*-----------------------------------------------------------------------------------*/
std::optional<AssetID> SHResourceManager::GetAssetID(Handle<void> handle)
{
const Handle GENERIC_HANDLE = Handle(handle);
// Search each library for the asset ID and try to free it
for (auto& typedAssetIdsMap : assetIdMap)
{
if (typedAssetIdsMap.second.contains(GENERIC_HANDLE))
{
return typedAssetIdsMap.second[GENERIC_HANDLE];
}
}
return {};
}
}

130
SHADE_Engine/src/Resource/SHResourceManager.h Normal file
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@ -0,0 +1,130 @@
/************************************************************************************//*!
\file SHResourceManager.h
\author Tng Kah Wei, kahwei.tng, 390009620
\par email: kahwei.tng\@digipen.edu
\date Oct 21, 2022
\brief Contains the definition of the SHResourceManager static class.
Copyright (C) 2022 DigiPen Institute of Technology.
Reproduction or disclosure of this file or its contents without the prior written consent
of DigiPen Institute of Technology is prohibited.
*//*************************************************************************************/
#pragma once
// STL Includes
#include <unordered_map>
// Project Includes
#include "SH_API.h"
#include "SHResourceLibrary.h"
#include "Assets/SHAssetMacros.h"
namespace SHADE
{
/// <summary>
/// Static class responsible for loading and caching runtime resources from their
/// serialised Asset IDs.
/// </summary>
class SH_API SHResourceManager
{
public:
/*---------------------------------------------------------------------------------*/
/* Loading Functions */
/*---------------------------------------------------------------------------------*/
/// <summary>
/// Loads or retrieves an existing loaded object of the specified type with the
/// specified asset ID.
/// Note that for specific types, the retrieved Handle may not be valid until after
/// FinaliseChanges() is called.
/// </summary>
/// <typeparam name="ResourceType">
/// Type of resource to load.
/// </typeparam>
/// <param name="assetId">Asset ID of the resource to load.</param>
/// <returns>Handle to a loaded runtime asset.</returns>
template<typename ResourceType>
static Handle<ResourceType> LoadOrGet(AssetID assetId);
/// <summary>
/// Unloads an existing loaded asset. Attempting to unload an invalid Handle will
/// simply do nothing except emit a warning.
/// Faster than the untemplated version.
/// </summary>
/// <typeparam name="ResourceType">Type of resource to unload.</typeparam>
/// <param name="assetId">Handle to the resource to unload.</param>
template<typename ResourceType>
static void Unload(Handle<ResourceType> assetId);
/// <summary>
/// Unloads an existing loaded asset. Attempting to unload an invalid Handle will
/// simply do nothing except emit a warning.
/// Compared to the templated version, this function is slower as it requires
/// searching through the storage of all resource types.
/// </summary>
/// <param name="assetId">Handle to the resource to unload.</param>
static void Unload(AssetID assetId);
/// <summary>
/// Needs to be called to finalise all changes to loads.
/// </summary>
static void FinaliseChanges();
/*---------------------------------------------------------------------------------*/
/* Query Functions */
/*---------------------------------------------------------------------------------*/
/// <summary>
/// Retrieves the AssetID associated with a specified Handle.
/// Faster than the untemplated version.
/// </summary>
/// <typeparam name="ResourceType">Type of resource to get the ID of.</typeparam>
/// <param name="handle">Handle to get the AssetID of.</param>
/// <return>
/// AssetID for the specified Handle. If the Handle is invalid, there will be no
/// value.
/// </return>
template<typename T>
static std::optional<AssetID> GetAssetID(Handle<T> handle);
/// <summary>
/// Retrieves the AssetID associated with a specified Handle.
/// Compared to the templated version, this function is slower as it requires
/// searching through the storage of all resource types.
/// </summary>
/// <param name="handle">Handle to get the AssetID of.</param>
/// <return>
/// AssetID for the specified Handle. If the Handle is invalid, there will be no
/// value.
/// </return>
static std::optional<AssetID> GetAssetID(Handle<void> handle);
private:
/*---------------------------------------------------------------------------------*/
/* Type Definitions */
/*---------------------------------------------------------------------------------*/
using AssetHandleMap = std::unordered_map<AssetID, Handle<void>>;
using HandleAssetMap = std::unordered_map<Handle<void>, AssetID>;
using AssetHandleMapRef = std::reference_wrapper<AssetHandleMap>;
using HandleAssetMapRef = std::reference_wrapper<HandleAssetMap>;
/*---------------------------------------------------------------------------------*/
/* Data Members */
/*---------------------------------------------------------------------------------*/
// Handles
static SHResourceHub resourceHub;
static std::unordered_map<std::type_index, AssetHandleMap> handlesMap;
static std::unordered_map<std::type_index, HandleAssetMap> assetIdMap;
static std::unordered_map<std::type_index, std::function<void(AssetID)>> typedFreeFuncMap;
// Pointers to temp CPU resources
static std::vector<AssetID> loadedAssetData;
/*---------------------------------------------------------------------------------*/
/* Helper Functions */
/*---------------------------------------------------------------------------------*/
/// <summary>
/// Retrieves or creates the AssetHandleMap for the specific type if it doesn't exist
/// </summary>
/// <typeparam name="ResourceType">
/// The type of AssetHandleMap to retrieve.
/// </typeparam>
/// <returns>Reference to the AssetHandleMap of the specified type.</returns>
template<typename ResourceType>
static std::pair<AssetHandleMapRef, HandleAssetMapRef> getAssetHandleMap();
};
}
#include "SHResourceManager.hpp"

171
SHADE_Engine/src/Resource/SHResourceManager.hpp Normal file
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@ -0,0 +1,171 @@
/************************************************************************************//*!
\file SHResourceManager.hpp
\author Tng Kah Wei, kahwei.tng, 390009620
\par email: kahwei.tng\@digipen.edu
\date Oct 21, 2022
\brief Contains the definition of the function templates of the
SHResourceManager static class.
Copyright (C) 2022 DigiPen Institute of Technology.
Reproduction or disclosure of this file or its contents without the prior written consent
of DigiPen Institute of Technology is prohibited.
*//*************************************************************************************/
#pragma once
// Primary Include
#include "SHResourceManager.h"
// Project Includes
#include "Assets/SHAssetManager.h"
#include "Graphics/MiddleEnd/Interface/SHGraphicsSystem.h"
#include "ECS_Base/Managers/SHSystemManager.h"
#include "Tools/SHLog.h"
namespace SHADE
{
/*-----------------------------------------------------------------------------------*/
/* Loading Functions */
/*-----------------------------------------------------------------------------------*/
template<typename ResourceType>
Handle<ResourceType> SHResourceManager::LoadOrGet(AssetID assetId)
{
// Check if it is an unsupported type
if (!std::is_same_v<ResourceType, SHMesh> && !std::is_same_v<ResourceType, SHTexture>)
{
static_assert(true, "Unsupported Resource Type specified for SHResourceManager.");
}
/* Attempt to get existing loaded asset */
auto [typedHandleMap, typedAssetIdMap] = getAssetHandleMap<ResourceType>();
if (typedHandleMap.get().contains(assetId))
return Handle<ResourceType>(typedHandleMap.get()[assetId]);
/* Otherwise, we need to load it! */
// Meshes
if constexpr (std::is_same_v<ResourceType, SHMesh>)
{
// Get system
SHGraphicsSystem* gfxSystem = SHSystemManager::GetSystem<SHGraphicsSystem>();
if (gfxSystem == nullptr)
throw std::runtime_error("[SHResourceManager] Attempted to load graphics resource without a SHGraphicsSystem installed.");
// Load
const SHMeshAsset* assetData = SHAssetManager::GetMesh(assetId);
if (assetData == nullptr)
{
SHLog::Warning("[SHResourceManager] Attempted to load an asset with an invalid Asset ID.");
return {};
}
loadedAssetData.emplace_back(assetId);
Handle<SHMesh> meshHandle = gfxSystem->AddMesh
(
assetData->vertexPosition.size(),
assetData->vertexPosition.data(),
assetData->texCoords.data(),
assetData->vertexTangent.data(),
assetData->vertexNormal.data(),
assetData->indices.size(),
assetData->indices.data()
);
Handle genericHandle = Handle(meshHandle);
typedHandleMap.get().emplace(assetId, genericHandle);
typedAssetIdMap.get().emplace(genericHandle, assetId);
return meshHandle;
}
// Textures
else if constexpr (std::is_same_v<ResourceType, SHTexture>)
{
// Get system
SHGraphicsSystem* gfxSystem = SHSystemManager::GetSystem<SHGraphicsSystem>();
if (gfxSystem == nullptr)
throw std::runtime_error("[SHResourceManager] Attempted to load graphics resource without a SHGraphicsSystem installed.");
// Load
const SHTextureAsset* assetData = SHAssetManager::GetTexture(assetId);
if (assetData == nullptr)
{
SHLog::Warning("[SHResourceManager] Attempted to load an asset with an invalid Asset ID.");
return {};
}
loadedAssetData.emplace_back(assetId);
Handle<SHTexture> texHandle = gfxSystem->AddTexture
(
assetData->numBytes,
assetData->pixelData,
assetData->width,
assetData->height,
assetData->format,
assetData->mipOffsets
);
typedHandleMap.get().emplace(assetId, Handle(texHandle));
return texHandle;
}
}
template<typename ResourceType>
void SHResourceManager::Unload(Handle<ResourceType> assetId)
{
// Check if it is an unsupported type
if (!std::is_same_v<ResourceType, SHMesh> && !std::is_same_v<ResourceType, SHTexture>)
{
static_assert(true, "Unsupported Resource Type specified for SHResourceManager.");
}
/* Attempt to get existing loaded asset */
auto [typedHandleMap, typedAssetIdMap] = getAssetHandleMap<ResourceType>();
if (typedHandleMap.get().contains(assetId))
{
// Dispose
Handle handle = typedHandleMap.get()[assetId];
Handle<ResourceType> typedHandle = static_cast<Handle<ResourceType>>(handle);
typedHandle.Free();
typedAssetIdMap.get().erase(handle);
typedHandleMap.get().erase(assetId);
}
else
{
// There's nothing to remove
SHLog::Warning("[SHResourceManager] Attempted to unload an invalid resource. Ignoring.");
}
}
/*-----------------------------------------------------------------------------------*/
/* Query Functions */
/*-----------------------------------------------------------------------------------*/
template<typename T>
static std::optional<AssetID> SHResourceManager::GetAssetID(Handle<T> handle)
{
const Handle GENERIC_HANDLE = Handle(handle);
auto [typedHandleMap, typedAssetIdMap] = getAssetHandleMap<T>();
if (typedAssetIdMap.get().contains(GENERIC_HANDLE))
{
return typedAssetIdMap.GetId()[GENERIC_HANDLE];
}
return {};
}
/*-----------------------------------------------------------------------------------*/
/* Helper Functions */
/*-----------------------------------------------------------------------------------*/
template<typename ResourceType>
std::pair<SHResourceManager::AssetHandleMapRef, SHResourceManager::HandleAssetMapRef> SHResourceManager::getAssetHandleMap()
{
const std::type_index TYPE = typeid(ResourceType);
if (!handlesMap.contains(TYPE))
{
handlesMap.emplace(TYPE, AssetHandleMap{});
assetIdMap.emplace(TYPE, HandleAssetMap{});
typedFreeFuncMap.emplace
(
TYPE,
[TYPE](AssetID assetId)
{
static_cast<Handle<ResourceType>>(SHResourceManager::handlesMap[TYPE][assetId]).Free();
}
);
}
return std::make_pair(std::ref(handlesMap[TYPE]), std::ref(assetIdMap[TYPE]));
}
}