Add static helper methods to D3D12RootSignature and D3D12PipelineState

engine/src/RHI/D3D12/D3D12PipelineState.cpp

@@ -22,5 +22,60 @@ void D3D12PipelineState::Shutdown() {
     m_pipelineState.Reset();
 }
 
+D3D12_GRAPHICS_PIPELINE_STATE_DESC D3D12PipelineState::CreateDesc(
+    ID3D12RootSignature* rootSignature,
+    const D3D12_SHADER_BYTECODE& vs,
+    const D3D12_SHADER_BYTECODE& ps,
+    const D3D12_SHADER_BYTECODE& gs,
+    uint32_t inputElementCount,
+    const D3D12_INPUT_ELEMENT_DESC* inputElements) {
+    D3D12_GRAPHICS_PIPELINE_STATE_DESC desc = {};
+    desc.pRootSignature = rootSignature;
+    desc.VS = vs;
+    desc.PS = ps;
+    desc.GS = gs;
+    desc.InputLayout.NumElements = inputElementCount;
+    desc.InputLayout.pInputElementDescs = inputElements;
+    desc.RTVFormats[0] = DXGI_FORMAT_R8G8B8A8_UNORM;
+    desc.DSVFormat = DXGI_FORMAT_D24_UNORM_S8_UINT;
+    desc.SampleDesc.Count = 1;
+    desc.SampleDesc.Quality = 0;
+    desc.SampleMask = 0xffffffff;
+    desc.NumRenderTargets = 1;
+    desc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
+    desc.RasterizerState.FillMode = D3D12_FILL_MODE_SOLID;
+    desc.RasterizerState.CullMode = D3D12_CULL_MODE_BACK;
+    desc.RasterizerState.DepthClipEnable = TRUE;
+    desc.DepthStencilState.DepthEnable = TRUE;
+    desc.DepthStencilState.DepthWriteMask = D3D12_DEPTH_WRITE_MASK_ALL;
+    desc.DepthStencilState.DepthFunc = D3D12_COMPARISON_FUNC_LESS_EQUAL;
+    return desc;
+}
+
+D3D12_INPUT_ELEMENT_DESC D3D12PipelineState::CreateInputElement(
+    const char* semanticName,
+    uint32_t semanticIndex,
+    Format format,
+    uint32_t inputSlot,
+    uint32_t alignedByteOffset) {
+    D3D12_INPUT_ELEMENT_DESC element = {};
+    element.SemanticName = semanticName;
+    element.SemanticIndex = semanticIndex;
+    element.Format = ToD3D12(format);
+    element.InputSlot = inputSlot;
+    element.AlignedByteOffset = alignedByteOffset;
+    element.InputSlotClass = D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA;
+    element.InstanceDataStepRate = 0;
+    return element;
+}
+
+D3D12_INPUT_ELEMENT_DESC D3D12PipelineState::CreateInputElement(
+    const char* semanticName,
+    uint32_t semanticIndex,
+    Format format,
+    uint32_t inputSlot) {
+    return CreateInputElement(semanticName, semanticIndex, format, inputSlot, D3D12_APPEND_ALIGNED_ELEMENT);
+}
+
 } // namespace RHI
 } // namespace XCEngine