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Java™ Binding for the OpenGL® API
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/**
* Copyright 2012 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.newt.driver.bcm.vc.iv;
import com.jogamp.nativewindow.AbstractGraphicsConfiguration;
import com.jogamp.nativewindow.AbstractGraphicsScreen;
import com.jogamp.nativewindow.Capabilities;
import com.jogamp.nativewindow.DefaultGraphicsScreen;
import com.jogamp.nativewindow.GraphicsConfigurationFactory;
import com.jogamp.nativewindow.NativeWindowException;
import com.jogamp.nativewindow.VisualIDHolder;
import com.jogamp.nativewindow.util.Point;
import com.jogamp.nativewindow.util.Rectangle;
import com.jogamp.nativewindow.util.RectangleImmutable;
import com.jogamp.common.util.Bitfield;
import com.jogamp.nativewindow.egl.EGLGraphicsDevice;
import com.jogamp.newt.event.MouseEvent;
import jogamp.newt.PointerIconImpl;
import jogamp.newt.WindowImpl;
import jogamp.newt.driver.KeyTracker;
import jogamp.newt.driver.MouseTracker;
import jogamp.newt.driver.linux.LinuxEventDeviceTracker;
import jogamp.newt.driver.linux.LinuxMouseTracker;
import jogamp.newt.driver.x11.X11UnderlayTracker;
import jogamp.opengl.egl.EGLDisplayUtil;
public class WindowDriver extends WindowImpl {
private static final String WINDOW_CLASS_NAME = "NewtWindow";
static {
DisplayDriver.initSingleton();
}
public WindowDriver() {
/* Try use X11 as input for bcm.vc.iv
* if X11 fail to initialize then
* track using the /dev/event files directly
* using the LinuxMouseTracker
*/
try{
x11UnderlayTracker = X11UnderlayTracker.getSingleton();
mouseTracker = x11UnderlayTracker;
keyTracker = x11UnderlayTracker;
} catch(final ExceptionInInitializerError e) {
linuxMouseTracker = LinuxMouseTracker.getSingleton();
linuxEventDeviceTracker = LinuxEventDeviceTracker.getSingleton();
mouseTracker = linuxMouseTracker;
keyTracker = linuxEventDeviceTracker;
}
layer = -1;
nativeWindowHandle = 0;
windowHandleClose = 0;
}
/**
* Clamp given rectangle to given screen bounds.
*
* @param screen
* @param rect the {@link RectangleImmutable} in pixel units
* @param definePosSize if {@code true} issue {@link #definePosition(int, int)} and {@link #defineSize(int, int)}
* if either has changed.
* @return If position or size has been clamped a new {@link RectangleImmutable} instance w/ clamped values
* will be returned, otherwise the given {@code rect} is returned.
*/
private RectangleImmutable clampRect(final ScreenDriver screen, final RectangleImmutable rect, final boolean definePosSize) {
int x = rect.getX();
int y = rect.getY();
int w = rect.getWidth();
int h = rect.getHeight();
final int s_w = screen.getWidth();
final int s_h = screen.getHeight();
boolean modPos = false;
boolean modSize = false;
if( 0 > x ) {
x = 0;
modPos = true;
}
if( 0 > y ) {
y = 0;
modPos = true;
}
if( s_w < x + w ) {
if( 0 < x ) {
x = 0;
modPos = true;
}
if( s_w < w ) {
w = s_w;
modSize = true;
}
}
if( s_h < y + h ) {
if( 0 < y ) {
y = 0;
modPos = true;
}
if( s_h < h ) {
h = s_h;
modSize = true;
}
}
if( modPos || modSize ) {
if( definePosSize ) {
if( modPos ) {
definePosition(x, y);
}
if( modSize ) {
defineSize(w, h);
}
}
return new Rectangle(x, y, w, h);
} else {
return rect;
}
}
@Override
protected boolean canCreateNativeImpl() {
// clamp if required incl. redefinition of position and size
clampRect((ScreenDriver) getScreen(), new Rectangle(getX(), getY(), getWidth(), getHeight()), true);
return true; // default: always able to be created
}
@Override
protected void createNativeImpl() {
if(0!=getParentWindowHandle()) {
throw new RuntimeException("Window parenting not supported (yet)");
}
synchronized( layerSync ) {
if( layerCount >= MAX_LAYERS ) {
throw new RuntimeException("Max windows reached: "+layerCount+" ( "+MAX_LAYERS+" )");
}
for(int i=0; 0 > layer && i layer ) {
throw new InternalError("Could not find a free layer: count "+layerCount+", max "+MAX_LAYERS);
}
final ScreenDriver screen = (ScreenDriver) getScreen();
final DisplayDriver display = (DisplayDriver) screen.getDisplay();
// Create own screen/device resource instance allowing independent ownership,
// while still utilizing shared EGL resources.
final AbstractGraphicsScreen aScreen = screen.getGraphicsScreen();
final EGLGraphicsDevice aDevice = (EGLGraphicsDevice) aScreen.getDevice();
final EGLGraphicsDevice eglDevice = EGLDisplayUtil.eglCreateEGLGraphicsDevice(aDevice.getNativeDisplayID(), aDevice.getConnection(), aDevice.getUnitID());
eglDevice.open();
final DefaultGraphicsScreen eglScreen = new DefaultGraphicsScreen(eglDevice, aScreen.getIndex());
final AbstractGraphicsConfiguration cfg = GraphicsConfigurationFactory.getFactory(getScreen().getDisplay().getGraphicsDevice(), capsRequested).chooseGraphicsConfiguration(
capsRequested, capsRequested, capabilitiesChooser, eglScreen, VisualIDHolder.VID_UNDEFINED);
if (null == cfg) {
throw new NativeWindowException("Error choosing GraphicsConfiguration creating window: "+this);
}
final Capabilities chosenCaps = (Capabilities) cfg.getChosenCapabilities();
// FIXME: Pass along opaque flag, since EGL doesn't determine it
if(capsRequested.isBackgroundOpaque() != chosenCaps.isBackgroundOpaque()) {
chosenCaps.setBackgroundOpaque(capsRequested.isBackgroundOpaque());
}
setGraphicsConfiguration(cfg);
nativeWindowHandle = CreateWindow0(display.getBCMHandle(), layer,
getX(), getY(), getWidth(), getHeight(),
chosenCaps.isBackgroundOpaque(), chosenCaps.getAlphaBits());
if (nativeWindowHandle == 0) {
throw new NativeWindowException("Error creating egl window: "+cfg);
}
setWindowHandle(nativeWindowHandle);
if (0 == getWindowHandle()) {
throw new NativeWindowException("Error native Window Handle is null");
}
windowHandleClose = nativeWindowHandle;
addWindowListener(keyTracker);
addWindowListener(mouseTracker);
focusChanged(false, true);
}
@Override
protected void closeNativeImpl() {
final DisplayDriver display = (DisplayDriver) getScreen().getDisplay();
final EGLGraphicsDevice eglDevice = (EGLGraphicsDevice) getGraphicsConfiguration().getScreen().getDevice();
removeWindowListener(mouseTracker);
removeWindowListener(keyTracker);
if(0!=windowHandleClose) {
CloseWindow0(display.getBCMHandle(), windowHandleClose);
}
eglDevice.close();
synchronized( layerSync ) {
usedLayers.clear(layer);
layerCount--;
layer = -1;
// System.err.println("XXX.Close capacity "+usedLayers.capacity()+", count "+usedLayers.getBitCount());
}
}
@Override
protected void requestFocusImpl(final boolean reparented) {
focusChanged(false, true);
}
@Override
protected final int getSupportedReconfigMaskImpl() {
return minimumReconfigStateMask |
// STATE_MASK_UNDECORATED |
// STATE_MASK_ALWAYSONTOP |
// STATE_MASK_ALWAYSONBOTTOM |
// STATE_MASK_STICKY |
// STATE_MASK_RESIZABLE |
// STATE_MASK_MAXIMIZED_VERT |
// STATE_MASK_MAXIMIZED_HORZ |
STATE_MASK_POINTERVISIBLE |
STATE_MASK_POINTERCONFINED;
}
@Override
protected boolean reconfigureWindowImpl(final int x, final int y, final int width, final int height, final int flags) {
final RectangleImmutable rect = clampRect((ScreenDriver) getScreen(), new Rectangle(x, y, width, height), false);
// reconfigure0 will issue position/size changed events if required
reconfigure0(nativeWindowHandle, rect.getX(), rect.getY(), rect.getWidth(), rect.getHeight(), flags);
return true;
}
@Override
protected Point getLocationOnScreenImpl(final int x, final int y) {
return new Point(x,y);
}
@Override
protected final void doMouseEvent(final boolean enqueue, final boolean wait, final short eventType, final int modifiers,
final int x, final int y, final short button, final float[] rotationXYZ, final float rotationScale) {
if( MouseEvent.EVENT_MOUSE_MOVED == eventType || MouseEvent.EVENT_MOUSE_DRAGGED == eventType ) {
final DisplayDriver display = (DisplayDriver) getScreen().getDisplay();
display.moveActivePointerIcon(getX() + x, getY() + y);
}
super.doMouseEvent(enqueue, wait, eventType, modifiers, x, y, button, rotationXYZ, rotationScale);
}
@Override
protected void setPointerIconImpl(final PointerIconImpl pi) {
final DisplayDriver display = (DisplayDriver) getScreen().getDisplay();
display.setPointerIconActive(null != pi ? pi.validatedHandle() : 0, mouseTracker.getLastX(), mouseTracker.getLastY());
}
@Override
protected boolean setPointerVisibleImpl(final boolean pointerVisible) {
final DisplayDriver display = (DisplayDriver) getScreen().getDisplay();
display.setActivePointerIconVisible(pointerVisible, mouseTracker.getLastX(), mouseTracker.getLastY());
return true;
}
//----------------------------------------------------------------------
// Internals only
//
private LinuxMouseTracker linuxMouseTracker;
private LinuxEventDeviceTracker linuxEventDeviceTracker;
private X11UnderlayTracker x11UnderlayTracker;
private MouseTracker mouseTracker;
private KeyTracker keyTracker;
protected static native boolean initIDs();
private native long CreateWindow0(long bcmDisplay, int layer, int x, int y, int width, int height, boolean opaque, int alphaBits);
private native void CloseWindow0(long bcmDisplay, long eglWindowHandle);
private native void reconfigure0(long eglWindowHandle, int x, int y, int width, int height, int flags);
private int layer;
private long nativeWindowHandle;
private long windowHandleClose;
private static int nextLayer = 0;
private static int layerCount = 0;
private static final int MAX_LAYERS = 32;
private static final Bitfield usedLayers = Bitfield.Factory.create(MAX_LAYERS);
private static final Object layerSync = new Object();
}