74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
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#include "AssetManager.h"
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#include "DirectXTex.h"
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#include "DDSTextureLoader12.h"
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#include "LEngine.h"
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#include "Texture.h"
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std::shared_ptr<AssetManager> AssetManager::_instance = nullptr;
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TexturePtr AssetManager::LoadTexture(const std::wstring& path) const
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{
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auto renderer = LEngine::Instance()->GetRenderer();
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auto device = renderer->GetDevice();
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ID3D12ResourcePtr resource;
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std::unique_ptr<uint8_t[]> data;
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std::vector<D3D12_SUBRESOURCE_DATA> srData;
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DirectX::LoadDDSTextureFromFile(device.Get(), GetFullAssetPath(path).c_str(), &resource, data, srData);
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//auto cmdList = renderer->BeginCommandList();
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//create upload heap
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D3D12_RESOURCE_DESC desc;
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desc = resource->GetDesc();
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UINT64 textureUploadBufferSize;
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device->GetCopyableFootprints(&desc, 0, srData.size(), 0, nullptr, nullptr, nullptr, &textureUploadBufferSize);
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// now we create an upload heap to upload our texture to the GPU
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ID3D12ResourcePtr textureBufferUploadHeap;
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auto hr = device->CreateCommittedResource(
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&CD3DX12_HEAP_PROPERTIES(D3D12_HEAP_TYPE_UPLOAD), // upload heap
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D3D12_HEAP_FLAG_NONE, // no flags
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&CD3DX12_RESOURCE_DESC::Buffer(textureUploadBufferSize), // resource description for a buffer (storing the image data in this heap just to copy to the default heap)
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D3D12_RESOURCE_STATE_GENERIC_READ, // We will copy the contents from this heap to the default heap above
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nullptr,
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IID_PPV_ARGS(&textureBufferUploadHeap));
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if (FAILED(hr))
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{
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FatalError(L"Failed to create upload heap");
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}
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textureBufferUploadHeap->SetName(L"Texture Buffer Upload Resource Heap");
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auto commandList = renderer->BeginCommandList();
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//copy subresource
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UpdateSubresources(commandList.Get(), resource.Get(), textureBufferUploadHeap.Get(), 0, 0, srData.size(), &srData[0]);
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commandList->ResourceBarrier(1, &CD3DX12_RESOURCE_BARRIER::Transition(resource.Get(), D3D12_RESOURCE_STATE_COPY_DEST, D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE));
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renderer->EndCommandList();
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renderer->WaitCommandsQueue();
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//create shader resource view
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auto srvMemory = renderer->getSrvDescriptorsAllocator()->alloc();
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D3D12_RESOURCE_DESC texDesc;
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texDesc = resource->GetDesc();
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D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc = {};
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srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
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srvDesc.Format = texDesc.Format;
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srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
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srvDesc.Texture2D.MipLevels = texDesc.MipLevels;
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device->CreateShaderResourceView(resource.Get(), &srvDesc, srvMemory);
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auto result = std::make_shared<Texture>(resource, srvMemory);
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//DirectX::CreateTexture(renderer->GetDevice(), image.GetImages(), image.GetImageCount(), metadata, &resource);
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return result;
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}
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