Replace CreateTexture2D with D3D12Texture wrapper

engine/include/XCEngine/RHI/D3D12/D3D12Texture.h

@@ -17,6 +17,8 @@ public:
 
     bool Initialize(ID3D12Device* device, const D3D12_RESOURCE_DESC& desc, D3D12_RESOURCE_STATES initialState = D3D12_RESOURCE_STATE_COMMON);
     bool InitializeFromExisting(ID3D12Resource* resource);
+    bool InitializeFromData(ID3D12Device* device, ID3D12GraphicsCommandList* commandList, 
+        const void* pixelData, uint32_t width, uint32_t height, DXGI_FORMAT format);
     void Shutdown();
 
     ID3D12Resource* GetResource() const { return m_resource.Get(); }

engine/src/RHI/D3D12Texture.cpp

@@ -41,6 +41,108 @@ bool D3D12Texture::InitializeFromExisting(ID3D12Resource* resource) {
     return true;
 }
 
+bool D3D12Texture::InitializeFromData(ID3D12Device* device, ID3D12GraphicsCommandList* commandList, 
+    const void* pixelData, uint32_t width, uint32_t height, DXGI_FORMAT format) {
+    
+    D3D12_RESOURCE_DESC textureDesc = {};
+    textureDesc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+    textureDesc.Alignment = 0;
+    textureDesc.Width = width;
+    textureDesc.Height = height;
+    textureDesc.DepthOrArraySize = 1;
+    textureDesc.MipLevels = 1;
+    textureDesc.Format = format;
+    textureDesc.SampleDesc.Count = 1;
+    textureDesc.SampleDesc.Quality = 0;
+    textureDesc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+    textureDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
+
+    D3D12_HEAP_PROPERTIES heapProperties = {};
+    heapProperties.Type = D3D12_HEAP_TYPE_DEFAULT;
+
+    HRESULT hResult = device->CreateCommittedResource(
+        &heapProperties,
+        D3D12_HEAP_FLAG_NONE,
+        &textureDesc,
+        D3D12_RESOURCE_STATE_COPY_DEST,
+        nullptr,
+        IID_PPV_ARGS(&m_resource)
+    );
+
+    if (FAILED(hResult)) {
+        return false;
+    }
+
+    textureDesc = m_resource->GetDesc();
+    UINT64 memorySizeUsed = 0;
+    UINT64 rowSizeInBytes = 0;
+    UINT rowUsed = 0;
+    D3D12_PLACED_SUBRESOURCE_FOOTPRINT subresourceFootprint;
+    device->GetCopyableFootprints(&textureDesc, 0, 1, 0,
+        &subresourceFootprint, &rowUsed, &rowSizeInBytes, &memorySizeUsed);
+
+    ID3D12Resource* tempBufferObject = nullptr;
+    D3D12_HEAP_PROPERTIES d3dTempHeapProperties = {};
+    d3dTempHeapProperties.Type = D3D12_HEAP_TYPE_UPLOAD;
+
+    D3D12_RESOURCE_DESC d3d12TempResourceDesc = {};
+    d3d12TempResourceDesc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
+    d3d12TempResourceDesc.Alignment = 0;
+    d3d12TempResourceDesc.Width = memorySizeUsed;
+    d3d12TempResourceDesc.Height = 1;
+    d3d12TempResourceDesc.DepthOrArraySize = 1;
+    d3d12TempResourceDesc.MipLevels = 1;
+    d3d12TempResourceDesc.Format = DXGI_FORMAT_UNKNOWN;
+    d3d12TempResourceDesc.SampleDesc.Count = 1;
+    d3d12TempResourceDesc.SampleDesc.Quality = 0;
+    d3d12TempResourceDesc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
+    d3d12TempResourceDesc.Flags = D3D12_RESOURCE_FLAG_NONE;
+
+    hResult = device->CreateCommittedResource(
+        &d3dTempHeapProperties,
+        D3D12_HEAP_FLAG_NONE,
+        &d3d12TempResourceDesc,
+        D3D12_RESOURCE_STATE_GENERIC_READ,
+        nullptr,
+        IID_PPV_ARGS(&tempBufferObject)
+    );
+
+    if (FAILED(hResult)) {
+        return false;
+    }
+
+    BYTE* pData;
+    tempBufferObject->Map(0, nullptr, reinterpret_cast<void**>(&pData));
+    BYTE* pDstTempBuffer = reinterpret_cast<BYTE*>(pData + subresourceFootprint.Offset);
+    const BYTE* pSrcData = reinterpret_cast<const BYTE*>(pixelData);
+    for (UINT i = 0; i < rowUsed; i++) {
+        memcpy(pDstTempBuffer + subresourceFootprint.Footprint.RowPitch * i, pSrcData + rowSizeInBytes * i, rowSizeInBytes);
+    }
+    tempBufferObject->Unmap(0, nullptr);
+
+    D3D12_TEXTURE_COPY_LOCATION dst = {};
+    dst.pResource = m_resource.Get();
+    dst.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
+    dst.SubresourceIndex = 0;
+
+    D3D12_TEXTURE_COPY_LOCATION src = {};
+    src.pResource = tempBufferObject;
+    src.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
+    src.PlacedFootprint = subresourceFootprint;
+    commandList->CopyTextureRegion(&dst, 0, 0, 0, &src, nullptr);
+
+    D3D12_RESOURCE_BARRIER barrier = {};
+    barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
+    barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
+    barrier.Transition.pResource = m_resource.Get();
+    barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_COPY_DEST;
+    barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
+    barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
+    commandList->ResourceBarrier(1, &barrier);
+
+    return true;
+}
+
 void D3D12Texture::Shutdown() {
     m_resource.Reset();
 }