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-// dear imgui: Renderer Backend for DirectX12
-// This needs to be used along with a Platform Backend (e.g. Win32)
-
-// Implemented features:
-// [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
-// [X] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset).
-// [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
-// [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'.
-
-// The aim of imgui_impl_dx12.h/.cpp is to be usable in your engine without any modification.
-// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
-
-// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
-// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
-// Learn about Dear ImGui:
-// - FAQ https://dearimgui.com/faq
-// - Getting Started https://dearimgui.com/getting-started
-// - Documentation https://dearimgui.com/docs (same as your local docs/ folder).
-// - Introduction, links and more at the top of imgui.cpp
-
-#pragma once
-#include "imgui.h" // IMGUI_IMPL_API
-#ifndef IMGUI_DISABLE
-#include <dxgiformat.h> // DXGI_FORMAT
-#include <d3d12.h> // D3D12_CPU_DESCRIPTOR_HANDLE
-
-// Initialization data, for ImGui_ImplDX12_Init()
-struct ImGui_ImplDX12_InitInfo
-{
- ID3D12Device* Device;
- ID3D12CommandQueue* CommandQueue; // Command queue used for queuing texture uploads.
- int NumFramesInFlight;
- DXGI_FORMAT RTVFormat; // RenderTarget format.
- DXGI_FORMAT DSVFormat; // DepthStencilView format.
- void* UserData;
-
- // Allocating SRV descriptors for textures is up to the application, so we provide callbacks.
- // (current version of the backend will only allocate one descriptor, from 1.92 the backend will need to allocate more)
- ID3D12DescriptorHeap* SrvDescriptorHeap;
- void (*SrvDescriptorAllocFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE* out_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE* out_gpu_desc_handle);
- void (*SrvDescriptorFreeFn)(ImGui_ImplDX12_InitInfo* info, D3D12_CPU_DESCRIPTOR_HANDLE cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE gpu_desc_handle);
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
- D3D12_CPU_DESCRIPTOR_HANDLE LegacySingleSrvCpuDescriptor; // To facilitate transition from single descriptor to allocator callback, you may use those.
- D3D12_GPU_DESCRIPTOR_HANDLE LegacySingleSrvGpuDescriptor;
-#endif
-
- ImGui_ImplDX12_InitInfo() { memset((void*)this, 0, sizeof(*this)); }
-};
-
-// Follow "Getting Started" link and check examples/ folder to learn about using backends!
-IMGUI_IMPL_API bool ImGui_ImplDX12_Init(ImGui_ImplDX12_InitInfo* info);
-IMGUI_IMPL_API void ImGui_ImplDX12_Shutdown();
-IMGUI_IMPL_API void ImGui_ImplDX12_NewFrame();
-IMGUI_IMPL_API void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* graphics_command_list);
-
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-// Legacy initialization API Obsoleted in 1.91.5
-// - font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture, they must be in 'srv_descriptor_heap'
-// - When we introduced the ImGui_ImplDX12_InitInfo struct we also added a 'ID3D12CommandQueue* CommandQueue' field.
-IMGUI_IMPL_API bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* srv_descriptor_heap, D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
-#endif
-
-// Use if you want to reset your rendering device without losing Dear ImGui state.
-IMGUI_IMPL_API bool ImGui_ImplDX12_CreateDeviceObjects();
-IMGUI_IMPL_API void ImGui_ImplDX12_InvalidateDeviceObjects();
-
-// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = NULL to handle this manually.
-IMGUI_IMPL_API void ImGui_ImplDX12_UpdateTexture(ImTextureData* tex);
-
-// [BETA] Selected render state data shared with callbacks.
-// This is temporarily stored in GetPlatformIO().Renderer_RenderState during the ImGui_ImplDX12_RenderDrawData() call.
-// (Please open an issue if you feel you need access to more data)
-struct ImGui_ImplDX12_RenderState
-{
- ID3D12Device* Device;
- ID3D12GraphicsCommandList* CommandList;
-};
-
-#endif // #ifndef IMGUI_DISABLE