org.lwjgl.vulkan.awt.AWTVKCanvas Maven / Gradle / Ivy
package org.lwjgl.vulkan.awt;
import java.awt.AWTException;
import java.awt.Canvas;
import java.awt.Graphics;
import org.lwjgl.system.Platform;
import org.lwjgl.vulkan.VkPhysicalDevice;
/**
* An AWT {@link Canvas} that supports to be drawn on using Vulkan.
*
* @author Kai Burjack
*/
public abstract class AWTVKCanvas extends Canvas {
private static final long serialVersionUID = 1L;
private static PlatformVKCanvas platformCanvas;
static {
String platformClassName;
switch (Platform.get()) {
case WINDOWS:
platformClassName = "org.lwjgl.vulkan.awt.PlatformWin32VKCanvas";
break;
case LINUX:
platformClassName = "org.lwjgl.vulkan.awt.PlatformX11VKCanvas";
break;
default:
throw new AssertionError("NYI");
}
try {
@SuppressWarnings("unchecked")
Class clazz = (Class) AWTVKCanvas.class.getClassLoader().loadClass(platformClassName);
platformCanvas = clazz.newInstance();
} catch (ClassNotFoundException e) {
throw new AssertionError("Platform-specific VKCanvas class not found: " + platformClassName);
} catch (InstantiationException e) {
throw new AssertionError("Could not instantiate platform-specific VKCanvas class: " + platformClassName);
} catch (IllegalAccessException e) {
throw new AssertionError("Could not instantiate platform-specific VKCanvas class: " + platformClassName);
}
}
private final VKData data;
public long surface;
protected AWTVKCanvas(VKData data) {
this.data = data;
}
@Override
public void paint(Graphics g) {
boolean created = false;
if (surface == 0L) {
try {
surface = platformCanvas.create(this, data);
created = true;
} catch (AWTException e) {
throw new RuntimeException("Exception while creating the Vulkan surface", e);
}
}
if (created)
initVK();
paintVK();
}
/**
* Determine whether there is presentation support for the given {@link VkPhysicalDevice} in a command queue of the specified queueFamiliy.
*
* @param physicalDevice
* the Vulkan {@link VkPhysicalDevice}
* @param queueFamily
* the command queue family
* @return true of false
*/
public boolean getPhysicalDevicePresentationSupport(VkPhysicalDevice physicalDevice, int queueFamily) {
return platformCanvas.getPhysicalDevicePresentationSupport(physicalDevice, queueFamily);
}
/**
* Will be called once after the Vulkan surface has been created.
*/
public abstract void initVK();
/**
* Will be called whenever the {@link Canvas} needs to paint itself.
*/
public abstract void paintVK();
}