Windows. Fix a crash on CI without dcomp.dll

skiko/src/awtMain/cpp/windows/DCompLibrary.cc

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "include/DCompLibrary.h"
+
+namespace DCompLibrary {
+    static HINSTANCE getLibrary() {
+        static HINSTANCE library = LoadLibrary("dcomp.dll");
+        return library;
+    }
+
+    HRESULT DCompositionCreateDevice(
+        IDXGIDevice *dxgiDevice,
+        REFIID iid,
+        void **dcompositionDevice
+    ) {
+        HINSTANCE library = getLibrary();
+
+        if (library != nullptr) {
+            typedef HRESULT(WINAPI * PROC_DCompositionCreateDevice)(IDXGIDevice * dxgiDevice, REFIID iid, void **dcompositionDevice);
+            static auto compositionCreateDevice = (PROC_DCompositionCreateDevice) GetProcAddress(library, "DCompositionCreateDevice");
+            return compositionCreateDevice(dxgiDevice, iid, dcompositionDevice);
+        } else {
+            return E_FAIL;
+        }
+    }
+};

skiko/src/awtMain/cpp/windows/directXRedrawer.cc

@@ -12,6 +12,7 @@
 #include "SkSurface.h"
 #include "include/gpu/ganesh/SkSurfaceGanesh.h"
 #include "../common/interop.hh"
+#include "include/DCompLibrary.h"
 
 #include "d3d/GrD3DTypes.h"
 #include <d3d12sdklayers.h>
@@ -20,9 +21,6 @@
 #include <dxgi1_4.h>
 #include <dxgi1_6.h>
 
-#include <dcomp.h>
-#pragma comment(lib, "dcomp.lib")
-
 const int BuffersCount = 2;
 
 class DirectXDevice
@@ -95,7 +93,7 @@ class DirectXDevice
         HRESULT result = swapChainFactory4->CreateSwapChainForComposition(queue.get(), &swapChainDesc, nullptr, swapChain1);
         if (FAILED(result)) { return result; }
 
-        result = DCompositionCreateDevice(0, IID_PPV_ARGS(&dcDevice));
+        result = DCompLibrary::DCompositionCreateDevice(0, IID_PPV_ARGS(&dcDevice));
         if (FAILED(result)) { return result; }
         result = dcDevice->CreateTargetForHwnd(hWnd, true, &dcTarget);
         if (FAILED(result)) { return result; }

skiko/src/awtMain/cpp/windows/include/DCompLibrary.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <dcomp.h>
+
+namespace DCompLibrary {
+    HRESULT DCompositionCreateDevice(
+        IDXGIDevice *dxgiDevice,
+        REFIID iid,
+        void **dcompositionDevice
+    );
+};