Add GetDescriptorHandleIncrementSize to D3D12Device and update main.cpp to use wrapper

engine/include/XCEngine/RHI/D3D12/D3D12Buffer.h

@@ -27,6 +27,8 @@ public:
     uint64_t GetSize() const { return GetDesc().Width; }
     D3D12_GPU_VIRTUAL_ADDRESS GetGPUVirtualAddress() const { return m_resource->GetGPUVirtualAddress(); }
 
+    void UpdateData(const void* data, uint64_t size);
+
 private:
     ComPtr<ID3D12Resource> m_resource;
 };

engine/include/XCEngine/RHI/D3D12/D3D12Device.h

@@ -51,6 +51,8 @@ public:
 
     std::vector<AdapterInfo> EnumerateAdapters();
 
+    UINT GetDescriptorHandleIncrementSize(DescriptorHeapType type) const;
+
     bool CheckFeatureSupport(D3D12_FEATURE feature, void* featureSupportData, uint32_t featureSupportDataSize);
 
     void SetDeviceRemoved() { m_isDeviceRemoved = true; }

engine/src/RHI/D3D12Buffer.cpp

@@ -147,5 +147,13 @@ void D3D12Buffer::Shutdown() {
     m_resource.Reset();
 }
 
+void D3D12Buffer::UpdateData(const void* data, uint64_t size) {
+    D3D12_RANGE range = { 0, static_cast<SIZE_T>(size) };
+    unsigned char* pBuffer = nullptr;
+    m_resource->Map(0, &range, reinterpret_cast<void**>(&pBuffer));
+    memcpy(pBuffer, data, static_cast<size_t>(size));
+    m_resource->Unmap(0, nullptr);
+}
+
 } // namespace RHI
 } // namespace XCEngine

engine/src/RHI/D3D12Device.cpp

@@ -165,5 +165,9 @@ std::vector<AdapterInfo> D3D12Device::EnumerateAdapters() {
     return adapters;
 }
 
+UINT D3D12Device::GetDescriptorHandleIncrementSize(DescriptorHeapType type) const {
+    return m_device->GetDescriptorHandleIncrementSize(ToD3D12(type));
+}
+
 } // namespace RHI
 } // namespace XCEngine