diff --git a/3rdparty/imgui/CMakeLists.txt b/3rdparty/imgui/CMakeLists.txt
index 3d3c084ffb..49dc43dacd 100644
--- a/3rdparty/imgui/CMakeLists.txt
+++ b/3rdparty/imgui/CMakeLists.txt
@@ -25,6 +25,8 @@ endif()
if(WIN32)
target_sources(imgui PRIVATE
include/imgui_impl_dx11.h
+ include/imgui_impl_dx12.h
src/imgui_impl_dx11.cpp
+ src/imgui_impl_dx12.cpp
)
endif()
diff --git a/3rdparty/imgui/imgui.vcxproj b/3rdparty/imgui/imgui.vcxproj
index 6396647965..3bcccf53b8 100644
--- a/3rdparty/imgui/imgui.vcxproj
+++ b/3rdparty/imgui/imgui.vcxproj
@@ -48,6 +48,7 @@
+
@@ -57,6 +58,7 @@
+
diff --git a/3rdparty/imgui/imgui.vcxproj.filters b/3rdparty/imgui/imgui.vcxproj.filters
index 2b2676042b..758a5f768c 100644
--- a/3rdparty/imgui/imgui.vcxproj.filters
+++ b/3rdparty/imgui/imgui.vcxproj.filters
@@ -9,6 +9,7 @@
+
@@ -18,5 +19,6 @@
+
\ No newline at end of file
diff --git a/3rdparty/imgui/include/imgui_impl_dx12.h b/3rdparty/imgui/include/imgui_impl_dx12.h
new file mode 100644
index 0000000000..899c822924
--- /dev/null
+++ b/3rdparty/imgui/include/imgui_impl_dx12.h
@@ -0,0 +1,39 @@
+// 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 ImTextureID. Read the FAQ about ImTextureID!
+// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
+
+// Important: to compile on 32-bit systems, this backend requires code to be compiled with '#define ImTextureID ImU64'.
+// This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
+// This define is set in the example .vcxproj file and need to be replicated in your app or by adding it to your imconfig.h file.
+
+// 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.
+// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
+// Read online: https://github.com/ocornut/imgui/tree/master/docs
+
+#pragma once
+#include "imgui.h" // IMGUI_IMPL_API
+#include // DXGI_FORMAT
+
+struct ID3D12Device;
+struct ID3D12DescriptorHeap;
+struct ID3D12GraphicsCommandList;
+struct D3D12_CPU_DESCRIPTOR_HANDLE;
+struct D3D12_GPU_DESCRIPTOR_HANDLE;
+
+// cmd_list is the command list that the implementation will use to render imgui draw lists.
+// Before calling the render function, caller must prepare cmd_list by resetting it and setting the appropriate
+// render target and descriptor heap that contains font_srv_cpu_desc_handle/font_srv_gpu_desc_handle.
+// 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.
+IMGUI_IMPL_API bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* cbv_srv_heap,
+ D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
+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);
+
+// Use if you want to reset your rendering device without losing Dear ImGui state.
+IMGUI_IMPL_API void ImGui_ImplDX12_InvalidateDeviceObjects();
+IMGUI_IMPL_API bool ImGui_ImplDX12_CreateDeviceObjects();
diff --git a/3rdparty/imgui/src/imgui_impl_dx12.cpp b/3rdparty/imgui/src/imgui_impl_dx12.cpp
new file mode 100644
index 0000000000..91b1ba274e
--- /dev/null
+++ b/3rdparty/imgui/src/imgui_impl_dx12.cpp
@@ -0,0 +1,730 @@
+// 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 ImTextureID. Read the FAQ about ImTextureID!
+// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
+
+// Important: to compile on 32-bit systems, this backend requires code to be compiled with '#define ImTextureID ImU64'.
+// This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
+// To build this on 32-bit systems:
+// - [Solution 1] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'ImTextureID=ImU64' (this is what we do in the 'example_win32_direct12/example_win32_direct12.vcxproj' project file)
+// - [Solution 2] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'IMGUI_USER_CONFIG="my_imgui_config.h"' and inside 'my_imgui_config.h' add '#define ImTextureID ImU64' and as many other options as you like.
+// - [Solution 3] IDE/msbuild: edit imconfig.h and add '#define ImTextureID ImU64' (prefer solution 2 to create your own config file!)
+// - [Solution 4] command-line: add '/D ImTextureID=ImU64' to your cl.exe command-line (this is what we do in the example_win32_direct12/build_win32.bat file)
+
+// 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.
+// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
+// Read online: https://github.com/ocornut/imgui/tree/master/docs
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+// 2021-05-19: DirectX12: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+// 2021-02-18: DirectX12: Change blending equation to preserve alpha in output buffer.
+// 2021-01-11: DirectX12: Improve Windows 7 compatibility (for D3D12On7) by loading d3d12.dll dynamically.
+// 2020-09-16: DirectX12: Avoid rendering calls with zero-sized scissor rectangle since it generates a validation layer warning.
+// 2020-09-08: DirectX12: Clarified support for building on 32-bit systems by redefining ImTextureID.
+// 2019-10-18: DirectX12: *BREAKING CHANGE* Added extra ID3D12DescriptorHeap parameter to ImGui_ImplDX12_Init() function.
+// 2019-05-29: DirectX12: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
+// 2019-04-30: DirectX12: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+// 2019-03-29: Misc: Various minor tidying up.
+// 2018-12-03: Misc: Added #pragma comment statement to automatically link with d3dcompiler.lib when using D3DCompile().
+// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+// 2018-06-12: DirectX12: Moved the ID3D12GraphicsCommandList* parameter from NewFrame() to RenderDrawData().
+// 2018-06-08: Misc: Extracted imgui_impl_dx12.cpp/.h away from the old combined DX12+Win32 example.
+// 2018-06-08: DirectX12: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle (to ease support for future multi-viewport).
+// 2018-02-22: Merged into master with all Win32 code synchronized to other examples.
+
+#include "imgui.h"
+#include "imgui_impl_dx12.h"
+
+// DirectX
+#include
+#include
+#include
+#ifdef _MSC_VER
+#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
+#endif
+
+// DirectX data
+struct ImGui_ImplDX12_RenderBuffers
+{
+ ID3D12Resource* IndexBuffer;
+ ID3D12Resource* VertexBuffer;
+ int IndexBufferSize;
+ int VertexBufferSize;
+};
+
+struct ImGui_ImplDX12_Data
+{
+ ID3D12Device* pd3dDevice;
+ ID3D12RootSignature* pRootSignature;
+ ID3D12PipelineState* pPipelineState;
+ DXGI_FORMAT RTVFormat;
+ ID3D12Resource* pFontTextureResource;
+ D3D12_CPU_DESCRIPTOR_HANDLE hFontSrvCpuDescHandle;
+ D3D12_GPU_DESCRIPTOR_HANDLE hFontSrvGpuDescHandle;
+
+ ImGui_ImplDX12_RenderBuffers* pFrameResources;
+ UINT numFramesInFlight;
+ UINT frameIndex;
+
+ ImGui_ImplDX12_Data() { memset(this, 0, sizeof(*this)); frameIndex = UINT_MAX; }
+};
+
+struct VERTEX_CONSTANT_BUFFER
+{
+ float mvp[4][4];
+};
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplDX12_Data* ImGui_ImplDX12_GetBackendData()
+{
+ return ImGui::GetCurrentContext() ? (ImGui_ImplDX12_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
+}
+
+// Functions
+static void ImGui_ImplDX12_SetupRenderState(ImDrawData* draw_data, ID3D12GraphicsCommandList* ctx, ImGui_ImplDX12_RenderBuffers* fr)
+{
+ ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+
+ // Setup orthographic projection matrix into our constant buffer
+ // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
+ VERTEX_CONSTANT_BUFFER vertex_constant_buffer;
+ {
+ float L = draw_data->DisplayPos.x;
+ float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+ float T = draw_data->DisplayPos.y;
+ float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+ float mvp[4][4] =
+ {
+ { 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
+ { 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
+ { 0.0f, 0.0f, 0.5f, 0.0f },
+ { (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
+ };
+ memcpy(&vertex_constant_buffer.mvp, mvp, sizeof(mvp));
+ }
+
+ // Setup viewport
+ D3D12_VIEWPORT vp;
+ memset(&vp, 0, sizeof(D3D12_VIEWPORT));
+ vp.Width = draw_data->DisplaySize.x;
+ vp.Height = draw_data->DisplaySize.y;
+ vp.MinDepth = 0.0f;
+ vp.MaxDepth = 1.0f;
+ vp.TopLeftX = vp.TopLeftY = 0.0f;
+ ctx->RSSetViewports(1, &vp);
+
+ // Bind shader and vertex buffers
+ unsigned int stride = sizeof(ImDrawVert);
+ unsigned int offset = 0;
+ D3D12_VERTEX_BUFFER_VIEW vbv;
+ memset(&vbv, 0, sizeof(D3D12_VERTEX_BUFFER_VIEW));
+ vbv.BufferLocation = fr->VertexBuffer->GetGPUVirtualAddress() + offset;
+ vbv.SizeInBytes = fr->VertexBufferSize * stride;
+ vbv.StrideInBytes = stride;
+ ctx->IASetVertexBuffers(0, 1, &vbv);
+ D3D12_INDEX_BUFFER_VIEW ibv;
+ memset(&ibv, 0, sizeof(D3D12_INDEX_BUFFER_VIEW));
+ ibv.BufferLocation = fr->IndexBuffer->GetGPUVirtualAddress();
+ ibv.SizeInBytes = fr->IndexBufferSize * sizeof(ImDrawIdx);
+ ibv.Format = sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT;
+ ctx->IASetIndexBuffer(&ibv);
+ ctx->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+ ctx->SetPipelineState(bd->pPipelineState);
+ ctx->SetGraphicsRootSignature(bd->pRootSignature);
+ ctx->SetGraphicsRoot32BitConstants(0, 16, &vertex_constant_buffer, 0);
+
+ // Setup blend factor
+ const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
+ ctx->OMSetBlendFactor(blend_factor);
+}
+
+template
+static inline void SafeRelease(T*& res)
+{
+ if (res)
+ res->Release();
+ res = NULL;
+}
+
+// Render function
+void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* ctx)
+{
+ // Avoid rendering when minimized
+ if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
+ return;
+
+ // FIXME: I'm assuming that this only gets called once per frame!
+ // If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
+ ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+ bd->frameIndex = bd->frameIndex + 1;
+ ImGui_ImplDX12_RenderBuffers* fr = &bd->pFrameResources[bd->frameIndex % bd->numFramesInFlight];
+
+ // Create and grow vertex/index buffers if needed
+ if (fr->VertexBuffer == NULL || fr->VertexBufferSize < draw_data->TotalVtxCount)
+ {
+ SafeRelease(fr->VertexBuffer);
+ fr->VertexBufferSize = draw_data->TotalVtxCount + 5000;
+ D3D12_HEAP_PROPERTIES props;
+ memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
+ props.Type = D3D12_HEAP_TYPE_UPLOAD;
+ props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
+ props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
+ D3D12_RESOURCE_DESC desc;
+ memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
+ desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
+ desc.Width = fr->VertexBufferSize * sizeof(ImDrawVert);
+ desc.Height = 1;
+ desc.DepthOrArraySize = 1;
+ desc.MipLevels = 1;
+ desc.Format = DXGI_FORMAT_UNKNOWN;
+ desc.SampleDesc.Count = 1;
+ desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
+ desc.Flags = D3D12_RESOURCE_FLAG_NONE;
+ if (bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&fr->VertexBuffer)) < 0)
+ return;
+ }
+ if (fr->IndexBuffer == NULL || fr->IndexBufferSize < draw_data->TotalIdxCount)
+ {
+ SafeRelease(fr->IndexBuffer);
+ fr->IndexBufferSize = draw_data->TotalIdxCount + 10000;
+ D3D12_HEAP_PROPERTIES props;
+ memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
+ props.Type = D3D12_HEAP_TYPE_UPLOAD;
+ props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
+ props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
+ D3D12_RESOURCE_DESC desc;
+ memset(&desc, 0, sizeof(D3D12_RESOURCE_DESC));
+ desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
+ desc.Width = fr->IndexBufferSize * sizeof(ImDrawIdx);
+ desc.Height = 1;
+ desc.DepthOrArraySize = 1;
+ desc.MipLevels = 1;
+ desc.Format = DXGI_FORMAT_UNKNOWN;
+ desc.SampleDesc.Count = 1;
+ desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
+ desc.Flags = D3D12_RESOURCE_FLAG_NONE;
+ if (bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc, D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&fr->IndexBuffer)) < 0)
+ return;
+ }
+
+ // Upload vertex/index data into a single contiguous GPU buffer
+ void* vtx_resource, *idx_resource;
+ D3D12_RANGE range;
+ memset(&range, 0, sizeof(D3D12_RANGE));
+ if (fr->VertexBuffer->Map(0, &range, &vtx_resource) != S_OK)
+ return;
+ if (fr->IndexBuffer->Map(0, &range, &idx_resource) != S_OK)
+ return;
+ ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource;
+ ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource;
+ for (int n = 0; n < draw_data->CmdListsCount; n++)
+ {
+ const ImDrawList* cmd_list = draw_data->CmdLists[n];
+ memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
+ memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
+ vtx_dst += cmd_list->VtxBuffer.Size;
+ idx_dst += cmd_list->IdxBuffer.Size;
+ }
+ fr->VertexBuffer->Unmap(0, &range);
+ fr->IndexBuffer->Unmap(0, &range);
+
+ // Setup desired DX state
+ ImGui_ImplDX12_SetupRenderState(draw_data, ctx, fr);
+
+ // Render command lists
+ // (Because we merged all buffers into a single one, we maintain our own offset into them)
+ int global_vtx_offset = 0;
+ int global_idx_offset = 0;
+ ImVec2 clip_off = draw_data->DisplayPos;
+ for (int n = 0; n < draw_data->CmdListsCount; n++)
+ {
+ const ImDrawList* cmd_list = draw_data->CmdLists[n];
+ for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
+ {
+ const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
+ if (pcmd->UserCallback != NULL)
+ {
+ // User callback, registered via ImDrawList::AddCallback()
+ // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+ if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+ ImGui_ImplDX12_SetupRenderState(draw_data, ctx, fr);
+ else
+ pcmd->UserCallback(cmd_list, pcmd);
+ }
+ else
+ {
+ // Project scissor/clipping rectangles into framebuffer space
+ ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
+ ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
+ if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+ continue;
+
+ // Apply Scissor/clipping rectangle, Bind texture, Draw
+ const D3D12_RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
+ D3D12_GPU_DESCRIPTOR_HANDLE texture_handle = {};
+ texture_handle.ptr = (UINT64)pcmd->GetTexID();
+ ctx->SetGraphicsRootDescriptorTable(1, texture_handle);
+ ctx->RSSetScissorRects(1, &r);
+ ctx->DrawIndexedInstanced(pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0);
+ }
+ }
+ global_idx_offset += cmd_list->IdxBuffer.Size;
+ global_vtx_offset += cmd_list->VtxBuffer.Size;
+ }
+}
+
+static void ImGui_ImplDX12_CreateFontsTexture()
+{
+ // Build texture atlas
+ ImGuiIO& io = ImGui::GetIO();
+ ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+ unsigned char* pixels;
+ int width, height;
+ io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
+
+ // Upload texture to graphics system
+ {
+ D3D12_HEAP_PROPERTIES props;
+ memset(&props, 0, sizeof(D3D12_HEAP_PROPERTIES));
+ props.Type = D3D12_HEAP_TYPE_DEFAULT;
+ props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
+ props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
+
+ D3D12_RESOURCE_DESC desc;
+ ZeroMemory(&desc, sizeof(desc));
+ desc.Dimension = D3D12_RESOURCE_DIMENSION_TEXTURE2D;
+ desc.Alignment = 0;
+ desc.Width = width;
+ desc.Height = height;
+ desc.DepthOrArraySize = 1;
+ desc.MipLevels = 1;
+ desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+ desc.SampleDesc.Count = 1;
+ desc.SampleDesc.Quality = 0;
+ desc.Layout = D3D12_TEXTURE_LAYOUT_UNKNOWN;
+ desc.Flags = D3D12_RESOURCE_FLAG_NONE;
+
+ ID3D12Resource* pTexture = NULL;
+ bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
+ D3D12_RESOURCE_STATE_COPY_DEST, NULL, IID_PPV_ARGS(&pTexture));
+
+ UINT uploadPitch = (width * 4 + D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u) & ~(D3D12_TEXTURE_DATA_PITCH_ALIGNMENT - 1u);
+ UINT uploadSize = height * uploadPitch;
+ desc.Dimension = D3D12_RESOURCE_DIMENSION_BUFFER;
+ desc.Alignment = 0;
+ desc.Width = uploadSize;
+ desc.Height = 1;
+ desc.DepthOrArraySize = 1;
+ desc.MipLevels = 1;
+ desc.Format = DXGI_FORMAT_UNKNOWN;
+ desc.SampleDesc.Count = 1;
+ desc.SampleDesc.Quality = 0;
+ desc.Layout = D3D12_TEXTURE_LAYOUT_ROW_MAJOR;
+ desc.Flags = D3D12_RESOURCE_FLAG_NONE;
+
+ props.Type = D3D12_HEAP_TYPE_UPLOAD;
+ props.CPUPageProperty = D3D12_CPU_PAGE_PROPERTY_UNKNOWN;
+ props.MemoryPoolPreference = D3D12_MEMORY_POOL_UNKNOWN;
+
+ ID3D12Resource* uploadBuffer = NULL;
+ HRESULT hr = bd->pd3dDevice->CreateCommittedResource(&props, D3D12_HEAP_FLAG_NONE, &desc,
+ D3D12_RESOURCE_STATE_GENERIC_READ, NULL, IID_PPV_ARGS(&uploadBuffer));
+ IM_ASSERT(SUCCEEDED(hr));
+
+ void* mapped = NULL;
+ D3D12_RANGE range = { 0, uploadSize };
+ hr = uploadBuffer->Map(0, &range, &mapped);
+ IM_ASSERT(SUCCEEDED(hr));
+ for (int y = 0; y < height; y++)
+ memcpy((void*) ((uintptr_t) mapped + y * uploadPitch), pixels + y * width * 4, width * 4);
+ uploadBuffer->Unmap(0, &range);
+
+ D3D12_TEXTURE_COPY_LOCATION srcLocation = {};
+ srcLocation.pResource = uploadBuffer;
+ srcLocation.Type = D3D12_TEXTURE_COPY_TYPE_PLACED_FOOTPRINT;
+ srcLocation.PlacedFootprint.Footprint.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+ srcLocation.PlacedFootprint.Footprint.Width = width;
+ srcLocation.PlacedFootprint.Footprint.Height = height;
+ srcLocation.PlacedFootprint.Footprint.Depth = 1;
+ srcLocation.PlacedFootprint.Footprint.RowPitch = uploadPitch;
+
+ D3D12_TEXTURE_COPY_LOCATION dstLocation = {};
+ dstLocation.pResource = pTexture;
+ dstLocation.Type = D3D12_TEXTURE_COPY_TYPE_SUBRESOURCE_INDEX;
+ dstLocation.SubresourceIndex = 0;
+
+ D3D12_RESOURCE_BARRIER barrier = {};
+ barrier.Type = D3D12_RESOURCE_BARRIER_TYPE_TRANSITION;
+ barrier.Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE;
+ barrier.Transition.pResource = pTexture;
+ barrier.Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
+ barrier.Transition.StateBefore = D3D12_RESOURCE_STATE_COPY_DEST;
+ barrier.Transition.StateAfter = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
+
+ ID3D12Fence* fence = NULL;
+ hr = bd->pd3dDevice->CreateFence(0, D3D12_FENCE_FLAG_NONE, IID_PPV_ARGS(&fence));
+ IM_ASSERT(SUCCEEDED(hr));
+
+ HANDLE event = CreateEvent(0, 0, 0, 0);
+ IM_ASSERT(event != NULL);
+
+ D3D12_COMMAND_QUEUE_DESC queueDesc = {};
+ queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
+ queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
+ queueDesc.NodeMask = 1;
+
+ ID3D12CommandQueue* cmdQueue = NULL;
+ hr = bd->pd3dDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&cmdQueue));
+ IM_ASSERT(SUCCEEDED(hr));
+
+ ID3D12CommandAllocator* cmdAlloc = NULL;
+ hr = bd->pd3dDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&cmdAlloc));
+ IM_ASSERT(SUCCEEDED(hr));
+
+ ID3D12GraphicsCommandList* cmdList = NULL;
+ hr = bd->pd3dDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, cmdAlloc, NULL, IID_PPV_ARGS(&cmdList));
+ IM_ASSERT(SUCCEEDED(hr));
+
+ cmdList->CopyTextureRegion(&dstLocation, 0, 0, 0, &srcLocation, NULL);
+ cmdList->ResourceBarrier(1, &barrier);
+
+ hr = cmdList->Close();
+ IM_ASSERT(SUCCEEDED(hr));
+
+ cmdQueue->ExecuteCommandLists(1, (ID3D12CommandList* const*)&cmdList);
+ hr = cmdQueue->Signal(fence, 1);
+ IM_ASSERT(SUCCEEDED(hr));
+
+ fence->SetEventOnCompletion(1, event);
+ WaitForSingleObject(event, INFINITE);
+
+ cmdList->Release();
+ cmdAlloc->Release();
+ cmdQueue->Release();
+ CloseHandle(event);
+ fence->Release();
+ uploadBuffer->Release();
+
+ // Create texture view
+ D3D12_SHADER_RESOURCE_VIEW_DESC srvDesc;
+ ZeroMemory(&srvDesc, sizeof(srvDesc));
+ srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+ srvDesc.ViewDimension = D3D12_SRV_DIMENSION_TEXTURE2D;
+ srvDesc.Texture2D.MipLevels = desc.MipLevels;
+ srvDesc.Texture2D.MostDetailedMip = 0;
+ srvDesc.Shader4ComponentMapping = D3D12_DEFAULT_SHADER_4_COMPONENT_MAPPING;
+ bd->pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, bd->hFontSrvCpuDescHandle);
+ SafeRelease(bd->pFontTextureResource);
+ bd->pFontTextureResource = pTexture;
+ }
+
+ // Store our identifier
+ // READ THIS IF THE STATIC_ASSERT() TRIGGERS:
+ // - Important: to compile on 32-bit systems, this backend requires code to be compiled with '#define ImTextureID ImU64'.
+ // - This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
+ // [Solution 1] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'ImTextureID=ImU64' (this is what we do in the 'example_win32_direct12/example_win32_direct12.vcxproj' project file)
+ // [Solution 2] IDE/msbuild: in "Properties/C++/Preprocessor Definitions" add 'IMGUI_USER_CONFIG="my_imgui_config.h"' and inside 'my_imgui_config.h' add '#define ImTextureID ImU64' and as many other options as you like.
+ // [Solution 3] IDE/msbuild: edit imconfig.h and add '#define ImTextureID ImU64' (prefer solution 2 to create your own config file!)
+ // [Solution 4] command-line: add '/D ImTextureID=ImU64' to your cl.exe command-line (this is what we do in the example_win32_direct12/build_win32.bat file)
+ static_assert(sizeof(ImTextureID) >= sizeof(bd->hFontSrvGpuDescHandle.ptr), "Can't pack descriptor handle into TexID, 32-bit not supported yet.");
+ io.Fonts->SetTexID((ImTextureID)bd->hFontSrvGpuDescHandle.ptr);
+}
+
+bool ImGui_ImplDX12_CreateDeviceObjects()
+{
+ ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+ if (!bd || !bd->pd3dDevice)
+ return false;
+ if (bd->pPipelineState)
+ ImGui_ImplDX12_InvalidateDeviceObjects();
+
+ // Create the root signature
+ {
+ D3D12_DESCRIPTOR_RANGE descRange = {};
+ descRange.RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
+ descRange.NumDescriptors = 1;
+ descRange.BaseShaderRegister = 0;
+ descRange.RegisterSpace = 0;
+ descRange.OffsetInDescriptorsFromTableStart = 0;
+
+ D3D12_ROOT_PARAMETER param[2] = {};
+
+ param[0].ParameterType = D3D12_ROOT_PARAMETER_TYPE_32BIT_CONSTANTS;
+ param[0].Constants.ShaderRegister = 0;
+ param[0].Constants.RegisterSpace = 0;
+ param[0].Constants.Num32BitValues = 16;
+ param[0].ShaderVisibility = D3D12_SHADER_VISIBILITY_VERTEX;
+
+ param[1].ParameterType = D3D12_ROOT_PARAMETER_TYPE_DESCRIPTOR_TABLE;
+ param[1].DescriptorTable.NumDescriptorRanges = 1;
+ param[1].DescriptorTable.pDescriptorRanges = &descRange;
+ param[1].ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
+
+ D3D12_STATIC_SAMPLER_DESC staticSampler = {};
+ staticSampler.Filter = D3D12_FILTER_MIN_MAG_MIP_LINEAR;
+ staticSampler.AddressU = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
+ staticSampler.AddressV = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
+ staticSampler.AddressW = D3D12_TEXTURE_ADDRESS_MODE_WRAP;
+ staticSampler.MipLODBias = 0.f;
+ staticSampler.MaxAnisotropy = 0;
+ staticSampler.ComparisonFunc = D3D12_COMPARISON_FUNC_ALWAYS;
+ staticSampler.BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK;
+ staticSampler.MinLOD = 0.f;
+ staticSampler.MaxLOD = 0.f;
+ staticSampler.ShaderRegister = 0;
+ staticSampler.RegisterSpace = 0;
+ staticSampler.ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
+
+ D3D12_ROOT_SIGNATURE_DESC desc = {};
+ desc.NumParameters = _countof(param);
+ desc.pParameters = param;
+ desc.NumStaticSamplers = 1;
+ desc.pStaticSamplers = &staticSampler;
+ desc.Flags =
+ D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT |
+ D3D12_ROOT_SIGNATURE_FLAG_DENY_HULL_SHADER_ROOT_ACCESS |
+ D3D12_ROOT_SIGNATURE_FLAG_DENY_DOMAIN_SHADER_ROOT_ACCESS |
+ D3D12_ROOT_SIGNATURE_FLAG_DENY_GEOMETRY_SHADER_ROOT_ACCESS;
+
+ // Load d3d12.dll and D3D12SerializeRootSignature() function address dynamically to facilitate using with D3D12On7.
+ // See if any version of d3d12.dll is already loaded in the process. If so, give preference to that.
+ HMODULE d3d12_dll = ::GetModuleHandleA("d3d12.dll");
+ if (d3d12_dll == NULL)
+ return false;
+
+ PFN_D3D12_SERIALIZE_ROOT_SIGNATURE D3D12SerializeRootSignatureFn = (PFN_D3D12_SERIALIZE_ROOT_SIGNATURE)::GetProcAddress(d3d12_dll, "D3D12SerializeRootSignature");
+ if (D3D12SerializeRootSignatureFn == NULL)
+ return false;
+
+ ID3DBlob* blob = NULL;
+ if (D3D12SerializeRootSignatureFn(&desc, D3D_ROOT_SIGNATURE_VERSION_1, &blob, NULL) != S_OK)
+ return false;
+
+ bd->pd3dDevice->CreateRootSignature(0, blob->GetBufferPointer(), blob->GetBufferSize(), IID_PPV_ARGS(&bd->pRootSignature));
+ blob->Release();
+ }
+
+ // By using D3DCompile() from / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
+ // If you would like to use this DX12 sample code but remove this dependency you can:
+ // 1) compile once, save the compiled shader blobs into a file or source code and pass them to CreateVertexShader()/CreatePixelShader() [preferred solution]
+ // 2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
+ // See https://github.com/ocornut/imgui/pull/638 for sources and details.
+
+ D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc;
+ memset(&psoDesc, 0, sizeof(D3D12_GRAPHICS_PIPELINE_STATE_DESC));
+ psoDesc.NodeMask = 1;
+ psoDesc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE;
+ psoDesc.pRootSignature = bd->pRootSignature;
+ psoDesc.SampleMask = UINT_MAX;
+ psoDesc.NumRenderTargets = 1;
+ psoDesc.RTVFormats[0] = bd->RTVFormat;
+ psoDesc.SampleDesc.Count = 1;
+ psoDesc.Flags = D3D12_PIPELINE_STATE_FLAG_NONE;
+
+ ID3DBlob* vertexShaderBlob;
+ ID3DBlob* pixelShaderBlob;
+
+ // Create the vertex shader
+ {
+ static const char* vertexShader =
+ "cbuffer vertexBuffer : register(b0) \
+ {\
+ float4x4 ProjectionMatrix; \
+ };\
+ struct VS_INPUT\
+ {\
+ float2 pos : POSITION;\
+ float4 col : COLOR0;\
+ float2 uv : TEXCOORD0;\
+ };\
+ \
+ struct PS_INPUT\
+ {\
+ float4 pos : SV_POSITION;\
+ float4 col : COLOR0;\
+ float2 uv : TEXCOORD0;\
+ };\
+ \
+ PS_INPUT main(VS_INPUT input)\
+ {\
+ PS_INPUT output;\
+ output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
+ output.col = input.col;\
+ output.uv = input.uv;\
+ return output;\
+ }";
+
+ if (FAILED(D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_5_0", 0, 0, &vertexShaderBlob, NULL)))
+ return false; // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+ psoDesc.VS = { vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize() };
+
+ // Create the input layout
+ static D3D12_INPUT_ELEMENT_DESC local_layout[] =
+ {
+ { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, pos), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
+ { "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, uv), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
+ { "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)IM_OFFSETOF(ImDrawVert, col), D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0 },
+ };
+ psoDesc.InputLayout = { local_layout, 3 };
+ }
+
+ // Create the pixel shader
+ {
+ static const char* pixelShader =
+ "struct PS_INPUT\
+ {\
+ float4 pos : SV_POSITION;\
+ float4 col : COLOR0;\
+ float2 uv : TEXCOORD0;\
+ };\
+ SamplerState sampler0 : register(s0);\
+ Texture2D texture0 : register(t0);\
+ \
+ float4 main(PS_INPUT input) : SV_Target\
+ {\
+ float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
+ return out_col; \
+ }";
+
+ if (FAILED(D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_5_0", 0, 0, &pixelShaderBlob, NULL)))
+ {
+ vertexShaderBlob->Release();
+ return false; // NB: Pass ID3D10Blob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
+ }
+ psoDesc.PS = { pixelShaderBlob->GetBufferPointer(), pixelShaderBlob->GetBufferSize() };
+ }
+
+ // Create the blending setup
+ {
+ D3D12_BLEND_DESC& desc = psoDesc.BlendState;
+ desc.AlphaToCoverageEnable = false;
+ desc.RenderTarget[0].BlendEnable = true;
+ desc.RenderTarget[0].SrcBlend = D3D12_BLEND_SRC_ALPHA;
+ desc.RenderTarget[0].DestBlend = D3D12_BLEND_INV_SRC_ALPHA;
+ desc.RenderTarget[0].BlendOp = D3D12_BLEND_OP_ADD;
+ desc.RenderTarget[0].SrcBlendAlpha = D3D12_BLEND_ONE;
+ desc.RenderTarget[0].DestBlendAlpha = D3D12_BLEND_INV_SRC_ALPHA;
+ desc.RenderTarget[0].BlendOpAlpha = D3D12_BLEND_OP_ADD;
+ desc.RenderTarget[0].RenderTargetWriteMask = D3D12_COLOR_WRITE_ENABLE_ALL;
+ }
+
+ // Create the rasterizer state
+ {
+ D3D12_RASTERIZER_DESC& desc = psoDesc.RasterizerState;
+ desc.FillMode = D3D12_FILL_MODE_SOLID;
+ desc.CullMode = D3D12_CULL_MODE_NONE;
+ desc.FrontCounterClockwise = FALSE;
+ desc.DepthBias = D3D12_DEFAULT_DEPTH_BIAS;
+ desc.DepthBiasClamp = D3D12_DEFAULT_DEPTH_BIAS_CLAMP;
+ desc.SlopeScaledDepthBias = D3D12_DEFAULT_SLOPE_SCALED_DEPTH_BIAS;
+ desc.DepthClipEnable = true;
+ desc.MultisampleEnable = FALSE;
+ desc.AntialiasedLineEnable = FALSE;
+ desc.ForcedSampleCount = 0;
+ desc.ConservativeRaster = D3D12_CONSERVATIVE_RASTERIZATION_MODE_OFF;
+ }
+
+ // Create depth-stencil State
+ {
+ D3D12_DEPTH_STENCIL_DESC& desc = psoDesc.DepthStencilState;
+ desc.DepthEnable = false;
+ desc.DepthWriteMask = D3D12_DEPTH_WRITE_MASK_ALL;
+ desc.DepthFunc = D3D12_COMPARISON_FUNC_ALWAYS;
+ desc.StencilEnable = false;
+ desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D12_STENCIL_OP_KEEP;
+ desc.FrontFace.StencilFunc = D3D12_COMPARISON_FUNC_ALWAYS;
+ desc.BackFace = desc.FrontFace;
+ }
+
+ HRESULT result_pipeline_state = bd->pd3dDevice->CreateGraphicsPipelineState(&psoDesc, IID_PPV_ARGS(&bd->pPipelineState));
+ vertexShaderBlob->Release();
+ pixelShaderBlob->Release();
+ if (result_pipeline_state != S_OK)
+ return false;
+
+ ImGui_ImplDX12_CreateFontsTexture();
+
+ return true;
+}
+
+void ImGui_ImplDX12_InvalidateDeviceObjects()
+{
+ ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+ if (!bd || !bd->pd3dDevice)
+ return;
+ ImGuiIO& io = ImGui::GetIO();
+
+ SafeRelease(bd->pRootSignature);
+ SafeRelease(bd->pPipelineState);
+ SafeRelease(bd->pFontTextureResource);
+ io.Fonts->SetTexID(NULL); // We copied bd->pFontTextureView to io.Fonts->TexID so let's clear that as well.
+
+ for (UINT i = 0; i < bd->numFramesInFlight; i++)
+ {
+ ImGui_ImplDX12_RenderBuffers* fr = &bd->pFrameResources[i];
+ SafeRelease(fr->IndexBuffer);
+ SafeRelease(fr->VertexBuffer);
+ }
+}
+
+bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* cbv_srv_heap,
+ D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle)
+{
+ ImGuiIO& io = ImGui::GetIO();
+ IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
+
+ // Setup backend capabilities flags
+ ImGui_ImplDX12_Data* bd = IM_NEW(ImGui_ImplDX12_Data)();
+ io.BackendRendererUserData = (void*)bd;
+ io.BackendRendererName = "imgui_impl_dx12";
+ io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+
+ bd->pd3dDevice = device;
+ bd->RTVFormat = rtv_format;
+ bd->hFontSrvCpuDescHandle = font_srv_cpu_desc_handle;
+ bd->hFontSrvGpuDescHandle = font_srv_gpu_desc_handle;
+ bd->pFrameResources = new ImGui_ImplDX12_RenderBuffers[num_frames_in_flight];
+ bd->numFramesInFlight = num_frames_in_flight;
+ bd->frameIndex = UINT_MAX;
+ IM_UNUSED(cbv_srv_heap); // Unused in master branch (will be used by multi-viewports)
+
+ // Create buffers with a default size (they will later be grown as needed)
+ for (int i = 0; i < num_frames_in_flight; i++)
+ {
+ ImGui_ImplDX12_RenderBuffers* fr = &bd->pFrameResources[i];
+ fr->IndexBuffer = NULL;
+ fr->VertexBuffer = NULL;
+ fr->IndexBufferSize = 10000;
+ fr->VertexBufferSize = 5000;
+ }
+
+ return true;
+}
+
+void ImGui_ImplDX12_Shutdown()
+{
+ ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+ IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
+ ImGuiIO& io = ImGui::GetIO();
+
+ ImGui_ImplDX12_InvalidateDeviceObjects();
+ delete[] bd->pFrameResources;
+ io.BackendRendererName = NULL;
+ io.BackendRendererUserData = NULL;
+ IM_DELETE(bd);
+}
+
+void ImGui_ImplDX12_NewFrame()
+{
+ ImGui_ImplDX12_Data* bd = ImGui_ImplDX12_GetBackendData();
+ IM_ASSERT(bd != NULL && "Did you call ImGui_ImplDX12_Init()?");
+
+ if (!bd->pPipelineState)
+ ImGui_ImplDX12_CreateDeviceObjects();
+}