Add wgc demo

2025-10-26 20:25:34 +08:00 · 2023-08-28 00:53:55 +08:00
parent 2b5c0ee533
commit e970bdc929
37 changed files with 2561 additions and 6 deletions
--- a/demo/d3dHelpers.h
+++ b/demo/d3dHelpers.h
@@ -0,0 +1,132 @@
+#pragma once
+#include "composition.interop.h"
+
+struct SurfaceContext {
+public:
+  SurfaceContext(std::nullptr_t) {}
+  SurfaceContext(
+      winrt::Windows::UI::Composition::CompositionDrawingSurface surface) {
+    m_surface = surface;
+    m_d2dContext = SurfaceBeginDraw(m_surface);
+  }
+  ~SurfaceContext() {
+    SurfaceEndDraw(m_surface);
+    m_d2dContext = nullptr;
+    m_surface = nullptr;
+  }
+
+  winrt::com_ptr<ID2D1DeviceContext> GetDeviceContext() { return m_d2dContext; }
+
+private:
+  winrt::com_ptr<ID2D1DeviceContext> m_d2dContext;
+  winrt::Windows::UI::Composition::CompositionDrawingSurface m_surface{nullptr};
+};
+
+struct D3D11DeviceLock {
+public:
+  D3D11DeviceLock(std::nullopt_t) {}
+  D3D11DeviceLock(ID3D11Multithread *pMultithread) {
+    m_multithread.copy_from(pMultithread);
+    m_multithread->Enter();
+  }
+  ~D3D11DeviceLock() {
+    m_multithread->Leave();
+    m_multithread = nullptr;
+  }
+
+private:
+  winrt::com_ptr<ID3D11Multithread> m_multithread;
+};
+
+inline auto CreateWICFactory() {
+  winrt::com_ptr<IWICImagingFactory2> wicFactory;
+  winrt::check_hresult(::CoCreateInstance(
+      CLSID_WICImagingFactory, nullptr, CLSCTX_INPROC_SERVER,
+      winrt::guid_of<IWICImagingFactory>(), wicFactory.put_void()));
+
+  return wicFactory;
+}
+
+inline auto CreateD2DDevice(winrt::com_ptr<ID2D1Factory1> const &factory,
+                            winrt::com_ptr<ID3D11Device> const &device) {
+  winrt::com_ptr<ID2D1Device> result;
+  winrt::check_hresult(
+      factory->CreateDevice(device.as<IDXGIDevice>().get(), result.put()));
+  return result;
+}
+
+inline auto CreateD3DDevice(D3D_DRIVER_TYPE const type,
+                            winrt::com_ptr<ID3D11Device> &device) {
+  WINRT_ASSERT(!device);
+
+  UINT flags = D3D11_CREATE_DEVICE_BGRA_SUPPORT;
+
+  //#ifdef _DEBUG
+  //	flags |= D3D11_CREATE_DEVICE_DEBUG;
+  //#endif
+
+  return D3D11CreateDevice(nullptr, type, nullptr, flags, nullptr, 0,
+                           D3D11_SDK_VERSION, device.put(), nullptr, nullptr);
+}
+
+inline auto CreateD3DDevice() {
+  winrt::com_ptr<ID3D11Device> device;
+  HRESULT hr = CreateD3DDevice(D3D_DRIVER_TYPE_HARDWARE, device);
+
+  if (DXGI_ERROR_UNSUPPORTED == hr) {
+    hr = CreateD3DDevice(D3D_DRIVER_TYPE_WARP, device);
+  }
+
+  winrt::check_hresult(hr);
+  return device;
+}
+
+inline auto CreateD2DFactory() {
+  D2D1_FACTORY_OPTIONS options{};
+
+  //#ifdef _DEBUG
+  //	options.debugLevel = D2D1_DEBUG_LEVEL_INFORMATION;
+  //#endif
+
+  winrt::com_ptr<ID2D1Factory1> factory;
+
+  winrt::check_hresult(D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED,
+                                         options, factory.put()));
+
+  return factory;
+}
+
+inline auto CreateDXGISwapChain(winrt::com_ptr<ID3D11Device> const &device,
+                                const DXGI_SWAP_CHAIN_DESC1 *desc) {
+  auto dxgiDevice = device.as<IDXGIDevice2>();
+  winrt::com_ptr<IDXGIAdapter> adapter;
+  winrt::check_hresult(dxgiDevice->GetParent(winrt::guid_of<IDXGIAdapter>(),
+                                             adapter.put_void()));
+  winrt::com_ptr<IDXGIFactory2> factory;
+  winrt::check_hresult(
+      adapter->GetParent(winrt::guid_of<IDXGIFactory2>(), factory.put_void()));
+
+  winrt::com_ptr<IDXGISwapChain1> swapchain;
+  winrt::check_hresult(factory->CreateSwapChainForComposition(
+      device.get(), desc, nullptr, swapchain.put()));
+
+  return swapchain;
+}
+
+inline auto CreateDXGISwapChain(winrt::com_ptr<ID3D11Device> const &device,
+                                uint32_t width, uint32_t height,
+                                DXGI_FORMAT format, uint32_t bufferCount) {
+  DXGI_SWAP_CHAIN_DESC1 desc = {};
+  desc.Width = width;
+  desc.Height = height;
+  desc.Format = format;
+  desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+  desc.SampleDesc.Count = 1;
+  desc.SampleDesc.Quality = 0;
+  desc.BufferCount = bufferCount;
+  desc.Scaling = DXGI_SCALING_STRETCH;
+  desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
+  desc.AlphaMode = DXGI_ALPHA_MODE_PREMULTIPLIED;
+
+  return CreateDXGISwapChain(device, &desc);
+}