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NVDXInteropDevice.java
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NVDXInteropDevice.java
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package org.eclipse.fx.drift.internal.backend;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import org.eclipse.fx.drift.internal.GL;
import org.eclipse.fx.drift.internal.Log;
import org.eclipse.fx.drift.internal.jni.win32.NVDXInterop;
import org.eclipse.fx.drift.internal.jni.win32.Win32;
import org.eclipse.fx.drift.internal.jni.win32.WindowsError;
public class NVDXInteropDevice {
public final Win32.HANDLE hDevice;
private Win32.IDirect3DDevice9Ex dxDevice;
private long glContext;
private NVDXInteropDevice(Win32.HANDLE hDevice) {
this.hDevice = hDevice;
}
@Override
public String toString() {
return "NVDXInteropDevice " + hDevice + " / " + dxDevice + " / " + glContext;
}
private int usageCount = 0;
private static List<NVDXInteropDevice> devices = new ArrayList<>();
public static NVDXInteropDevice openDevice(Win32.IDirect3DDevice9Ex dxDevice) throws WindowsError {
synchronized (devices) {
long glContext = GL.getCurrentContext();
NVDXInteropDevice device = null;
Optional<NVDXInteropDevice> existing = devices.stream().filter(dev -> dev.glContext == glContext && dev.dxDevice.address == dxDevice.address).findFirst();
if (existing.isPresent()) {
device = existing.get();
}
else {
device = new NVDXInteropDevice(NVDXInterop.wglDXOpenDeviceNV(dxDevice));
device.glContext = glContext;
device.dxDevice = dxDevice;
devices.add(device);
}
device.usageCount++;
Log.debug("" + device);
return device;
}
}
public void closeDevice() throws WindowsError {
synchronized (devices) {
usageCount--;
if (usageCount == 0) {
NVDXInterop.wglDXCloseDeviceNV(hDevice);
devices.remove(this);
}
}
}
}