cleanup and refactoring

raytracer/nvpro_core/nvdx12/base_dx12.hpp

@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2016-2021, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2016-2021 NVIDIA CORPORATION
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
+#ifndef NV_DX12_BASE_INCLUDED
+#define NV_DX12_BASE_INCLUDED
+
+#include <assert.h>
+#include <d3d12.h>
+#include <dxgi1_5.h>
+#include <platform.h>
+#include <vector>
+
+/// \todo Detect swap chain size
+#define D3D12_SWAP_CHAIN_SIZE 3
+
+namespace nvdx12 {
+
+
+//////////////////////////////////////////////////////////////////////////
+/** @DOC_START 
+  # class nvdx12::DeviceUtils
+  Utility class for simple creation of pipeline states, root signatures,
+  and buffers.
+-- @DOC_END - */
+
+
+/** @DOC_START 
+  # function nvdx12::transitionBarrier
+  Short-hand function to create a transition barrier
+-- @DOC_END - */
+
+
+// Specifies a heap used for uploading. This heap type has CPU access optimized for uploading to the GPU.
+static const D3D12_HEAP_PROPERTIES uploadHeapProps = {D3D12_HEAP_TYPE_UPLOAD, D3D12_CPU_PAGE_PROPERTY_UNKNOWN,
+                                                      D3D12_MEMORY_POOL_UNKNOWN, 0, 0};
+
+// Specifies the default heap. This heap type experiences the most bandwidth for the GPU, but cannot provide CPU access.
+static const D3D12_HEAP_PROPERTIES defaultHeapProps = {D3D12_HEAP_TYPE_DEFAULT, D3D12_CPU_PAGE_PROPERTY_UNKNOWN,
+                                                       D3D12_MEMORY_POOL_UNKNOWN, 0, 0};
+
+
+//////////////////////////////////////////////////////////////////////////
+
+D3D12_RESOURCE_BARRIER transitionBarrier(_In_ ID3D12Resource*  pResource,
+                                         D3D12_RESOURCE_STATES stateBefore,
+                                         D3D12_RESOURCE_STATES stateAfter,
+                                         UINT                  subresource  = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES,
+                                         D3D12_RESOURCE_BARRIER_FLAGS flags = D3D12_RESOURCE_BARRIER_FLAG_NONE);
+
+struct DeviceUtils
+{
+  DeviceUtils()
+      : m_device(nullptr)
+  {
+  }
+  DeviceUtils(ID3D12Device* device)
+      : m_device(device)
+  {
+  }
+
+  ID3D12Device* createDevice(IDXGIFactory5* factory);
+
+  D3D12_GRAPHICS_PIPELINE_STATE_DESC createDefaultPipelineDesc(D3D12_INPUT_ELEMENT_DESC* inputDescs,
+                                                               UINT                      inputCount,
+                                                               ID3D12RootSignature*      rootSignature,
+                                                               void*                     vertexShaderPointer,
+                                                               size_t                    vertexShaderSize,
+                                                               void*                     pixelShaderPointer,
+                                                               size_t                    pixelShaderSize);
+
+  void addDepthStencilTestToPipeline(D3D12_GRAPHICS_PIPELINE_STATE_DESC& desc,
+                                     bool                                enableDepth   = true,
+                                     bool                                enableStencil = false,
+                                     DXGI_FORMAT                         format        = DXGI_FORMAT_D32_FLOAT);
+
+  ID3D12Resource* createBuffer(uint64_t size, D3D12_RESOURCE_FLAGS flags, D3D12_RESOURCE_STATES initState, const D3D12_HEAP_PROPERTIES& heapProps);
+
+  ID3D12RootSignature* createRootSignature(D3D12_ROOT_SIGNATURE_DESC rootSignatureDesc);
+
+  ID3D12Device* m_device;
+};
+
+}  // namespace nvdx12
+
+#endif