Start rendering in avalonia

src/ImeSense.ShaderPlayground.Interop/PlatformInvoke/Framework.cs

@@ -14,12 +14,12 @@ internal class Framework {
     [DllImport("RenderLibrary", EntryPoint = "DestroyNativeWindow", CallingConvention = CallingConvention.Cdecl)]
     public static extern void DestroyNativeWindow();
 
-    [DllImport("RenderLibrary", EntryPoint = "Frame", CallingConvention = CallingConvention.Cdecl)]
-    public static extern bool Frame();
+    [DllImport("RenderLibrary", EntryPoint = "FrameNative", CallingConvention = CallingConvention.Cdecl)]
+    public static extern bool FrameNative();
 
-    [DllImport("RenderLibrary", EntryPoint = "MessageLoop", CallingConvention = CallingConvention.Cdecl)]
-    public static extern void MessageLoop(IntPtr hWnd);
+    [DllImport("RenderLibrary", EntryPoint = "MessageNativeLoop", CallingConvention = CallingConvention.Cdecl)]
+    public static extern void MessageNativeLoop(IntPtr hWnd);
 
-    [DllImport("RenderLibrary", EntryPoint = "CreateScene", CallingConvention = CallingConvention.Cdecl)]
-    public static extern void CreateScene(IntPtr hWnd);
+    [DllImport("RenderLibrary", EntryPoint = "CreateNativeScene", CallingConvention = CallingConvention.Cdecl)]
+    public static extern void CreateNativeScene(IntPtr hWnd);
 }

src/ImeSense.ShaderPlayground.Interop/Viewport.cs

@@ -21,7 +21,7 @@ protected override IPlatformHandle CreateNativeControlCore(IPlatformHandle paren
         if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) {
             _nativeWindowHandle = Framework.CreateNativeWindow();
 
-            Framework.CreateScene(_nativeWindowHandle);
+            Framework.CreateNativeScene(_nativeWindowHandle);
 
             string currentDirectory1 = AppDomain.CurrentDomain.BaseDirectory;
             string currentDirectory2 = System.IO.Directory.GetCurrentDirectory();
@@ -49,7 +49,7 @@ protected override void DestroyNativeControlCore(IPlatformHandle control) {
 
     private static void RunRender() {
         while (true) {
-            Framework.Frame();
+            Framework.FrameNative();
         }
     }
 }

src/RenderLibrary/CreateDirectXDevice.cpp

@@ -0,0 +1,105 @@
+#include "StdAfx.h"
+
+#include <d3d11.h>
+#include <Windows.h>
+
+IDXGISwapChain* g_pSwapChain = nullptr;
+ID3D11Device* g_pd3dDevice = nullptr;
+ID3D11DeviceContext* g_pImmediateContext = nullptr;
+ID3D11RenderTargetView* g_pRenderTargetView = nullptr;
+
+#include "CreateDirectXDevice.hpp"
+
+//using namespace RenderLibary;
+
+void CreateCustomDirectXScene(HWND hwnd)
+{
+    // Описание цепочки свопа
+    DXGI_SWAP_CHAIN_DESC sd = {};
+    sd.BufferCount = 1;
+    sd.BufferDesc.Width = 800;
+    sd.BufferDesc.Height = 600;
+    sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
+    sd.BufferDesc.RefreshRate.Numerator = 60;
+    sd.BufferDesc.RefreshRate.Denominator = 1;
+    sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+    sd.OutputWindow = hwnd;
+    sd.SampleDesc.Count = 1;
+    sd.SampleDesc.Quality = 0;
+    sd.Windowed = TRUE;
+    sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
+    sd.Flags = 0;
+
+    D3D_FEATURE_LEVEL featureLevel;
+    HRESULT hr = D3D11CreateDeviceAndSwapChain
+    (
+        nullptr, 
+        D3D_DRIVER_TYPE_HARDWARE, nullptr, 0, nullptr, 0, 
+        D3D11_SDK_VERSION, &sd, &g_pSwapChain, &g_pd3dDevice,
+        &featureLevel, &g_pImmediateContext
+    );
+
+    if (FAILED(hr))
+    {
+        MessageBox(hwnd, L"Failed to create Direct3D device and swap chain!", L"Error", MB_ICONERROR);
+        return;
+    }
+
+    ID3D11Texture2D* pBackBuffer = nullptr;
+    g_pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&pBackBuffer);
+    g_pd3dDevice->CreateRenderTargetView(pBackBuffer, nullptr, &g_pRenderTargetView);
+    pBackBuffer->Release();
+
+    // Установка представления цели рендеринга
+    g_pImmediateContext->OMSetRenderTargets(1, &g_pRenderTargetView, nullptr);
+
+    D3D11_VIEWPORT vp;
+
+    vp.Width = (FLOAT)800;
+    vp.Height = (FLOAT)600;
+    vp.MinDepth = 0.0f;
+    vp.MaxDepth = 1.0f;
+    vp.TopLeftX = 0;
+    vp.TopLeftY = 0;
+
+    g_pImmediateContext->RSSetViewports(1, &vp);
+}
+
+// Очистка ресурсов DirectX
+void CleanupDirectX()
+{
+    if (g_pImmediateContext)
+    {
+        g_pImmediateContext->ClearState();
+    }
+
+    if (g_pRenderTargetView)
+    {
+        g_pRenderTargetView->Release();
+    }
+
+    if (g_pSwapChain)
+    {
+        g_pSwapChain->Release();
+    }
+
+    if (g_pImmediateContext)
+    {
+        g_pImmediateContext->Release();
+    }
+
+    if (g_pd3dDevice)
+    {
+        g_pd3dDevice->Release();
+    }
+}
+
+bool RenderFrame()
+{
+    const float clearColor[4] = { 0.0f, 0.2f, 0.4f, 1.0f };
+    g_pImmediateContext->ClearRenderTargetView(g_pRenderTargetView, clearColor);
+
+    g_pSwapChain->Present(0, 0);
+
+    return true;
+}

src/RenderLibrary/CreateDirectXDevice.hpp

@@ -0,0 +1,8 @@
+#pragma once
+
+extern "C"
+{
+    void CreateCustomDirectXScene(HWND hwnd);
+    void CleanupDirectX();
+    bool RenderFrame();
+}

src/RenderLibrary/FabricCustomWindow.cpp

@@ -19,6 +19,7 @@ using namespace DirectX;
 
 #include "Exports.hpp"
 #include "FabricCustomWindow.hpp"
+#include "CreateDirectXDevice.hpp"
 
 using namespace RenderLibary;
 
@@ -95,7 +96,7 @@ API HWND CreateCustomWindow()
 
 API void CreateCustomScene(HWND pointer)
 {
-
+    CreateCustomDirectXScene(pointer);
 }
 
 API void MessageCustomLoop()
@@ -109,6 +110,7 @@ API void MessageCustomLoop()
 
 API void DestroyCustomWindow()
 {
+    CleanupDirectX();
     DestroyWindow(_renderCustomObject._window);
     _renderCustomObject._window = nullptr;
 }
@@ -117,5 +119,8 @@ API bool FrameCustom()
 {
     MessageCustomLoop();
 
+    if (!RenderFrame())
+        return false;
+
     return true;
 }

src/RenderLibrary/FabricNativeWindow.cpp

@@ -19,6 +19,7 @@ using namespace DirectX;
 
 #include "Exports.hpp"
 #include "FabricNativeWindow.hpp"
+#include "CreateDirectXDevice.hpp"
 
 using namespace RenderLibary;
 
@@ -93,7 +94,7 @@ API HWND CreateNativeWindow()
 
 API void CreateNativeScene(HWND pointer)
 {
-
+    CreateCustomDirectXScene(pointer);
 }
 
 API void MessageNativeLoop()
@@ -107,6 +108,7 @@ API void MessageNativeLoop()
 
 API void DestroyNativeWindow()
 {
+    CleanupDirectX();
     DestroyWindow(_renderNativeObject._window);
     _renderNativeObject._window = nullptr;
 }
@@ -115,5 +117,8 @@ API bool FrameNative()
 {
     MessageNativeLoop();
 
+    if (!RenderFrame())
+        return false;
+
     return true;
 }