Restore PlatformWin32VKCanvas.java (deleted on accident :/ )

br45entei · Jun 11, 2020 · 67e2944 · 67e2944
1 parent f8aab70
commit 67e2944
Showing 1 changed file with 51 additions and 0 deletions.
diff --git a/lwjgl3-swt-windows/src/main/java/org/lwjgl/vulkan/swt/PlatformWin32VKCanvas.java b/lwjgl3-swt-windows/src/main/java/org/lwjgl/vulkan/swt/PlatformWin32VKCanvas.java
@@ -0,0 +1,51 @@
+package org.lwjgl.vulkan.swt;
+
+import static org.lwjgl.system.MemoryStack.*;
+import static org.lwjgl.vulkan.KHRWin32Surface.*;
+import static org.lwjgl.vulkan.VK10.*;
+
+import java.nio.LongBuffer;
+
+import org.eclipse.swt.SWTException;
+import org.eclipse.swt.internal.win32.OS;
+import org.eclipse.swt.widgets.Composite;
+import org.lwjgl.vulkan.VkPhysicalDevice;
+import org.lwjgl.vulkan.VkWin32SurfaceCreateInfoKHR;
+
+public class PlatformWin32VKCanvas implements PlatformVKCanvas {
+    private static final String USE_OWNDC_KEY = "org.eclipse.swt.internal.win32.useOwnDC";
+
+    public int checkStyle(Composite parent, int style) {
+        // Somehow we need to temporarily set 'org.eclipse.swt.internal.win32.useOwnDC' to true or else context creation on Windows fails...
+        if (parent != null) {
+        	// Removed windows version check - SWT dropped support for windows before Vista
+        	// https://github.com/eclipse/eclipse.platform.swt/commit/84c9e305cb087110cb300a5e58f86583cf80914d#diff-bb4584995e162b851fafacf3b046cc35
+            parent.getDisplay().setData(USE_OWNDC_KEY, Boolean.TRUE);
+        }
+        return style;
+    }
+
+    public void resetStyle(Composite parent) {
+        parent.getDisplay().setData(USE_OWNDC_KEY, Boolean.FALSE);
+    }
+
+    @Override
+    public long create(Composite composite, VKData data) {
+        VkWin32SurfaceCreateInfoKHR sci = VkWin32SurfaceCreateInfoKHR.callocStack()
+		        .sType(VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR)
+		        .hinstance(OS.GetModuleHandle(null))
+		        .hwnd(composite.handle);
+        LongBuffer pSurface = stackMallocLong(1);
+        int err = vkCreateWin32SurfaceKHR(data.instance, sci, null, pSurface);
+        long surface = pSurface.get(0);
+        if (err != VK_SUCCESS) {
+            throw new SWTException("Calling vkCreateWin32SurfaceKHR failed with error: " + err);
+        }
+        return surface;
+    }
+
+    public boolean getPhysicalDevicePresentationSupport(VkPhysicalDevice physicalDevice, int queueFamily) {
+        return vkGetPhysicalDeviceWin32PresentationSupportKHR(physicalDevice, queueFamily);
+    }
+
+}