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Headless graphics driver for JavaFX
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/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.glass.ui.monocle;
import com.sun.glass.events.MouseEvent;
import com.sun.glass.ui.Pixels;
import com.sun.glass.ui.Robot;
import com.sun.glass.ui.monocle.input.KeyInput;
import com.sun.glass.ui.monocle.input.KeyState;
import com.sun.glass.ui.monocle.input.MouseInput;
import com.sun.glass.ui.monocle.input.MouseState;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import javafx.application.Platform;
import java.nio.IntBuffer;
import java.nio.ShortBuffer;
public class MonocleRobot extends Robot {
@Override
protected void _create() {
}
@Override
protected void _destroy() {
}
@Override
protected void _keyPress(int code) {
Platform.runLater(() -> {
KeyState state = new KeyState();
KeyInput.getInstance().getState(state);
state.pressKey(code);
KeyInput.getInstance().setState(state);
});
}
@Override
protected void _keyRelease(int code) {
Platform.runLater(() -> {
KeyState state = new KeyState();
KeyInput.getInstance().getState(state);
state.releaseKey(code);
KeyInput.getInstance().setState(state);
});
}
@Override
protected void _mouseMove(int x, int y) {
Platform.runLater(() -> {
MouseState state = new MouseState();
MouseInput.getInstance().getState(state);
state.setX(x);
state.setY(y);
MouseInput.getInstance().setState(state, false);
});
}
@Override
protected void _mousePress(int buttons) {
Platform.runLater(() -> {
MouseState state = new MouseState();
MouseInput.getInstance().getState(state);
if ((buttons & MOUSE_LEFT_BTN) != 0) {
state.pressButton(MouseEvent.BUTTON_LEFT);
}
if ((buttons & MOUSE_MIDDLE_BTN) != 0) {
state.pressButton(MouseEvent.BUTTON_OTHER);
}
if ((buttons & MOUSE_RIGHT_BTN) != 0) {
state.pressButton(MouseEvent.BUTTON_RIGHT);
}
MouseInput.getInstance().setState(state, false);
});
}
@Override
protected void _mouseRelease(int buttons) {
Platform.runLater(() -> {
MouseState state = new MouseState();
MouseInput.getInstance().getState(state);
if ((buttons & MOUSE_LEFT_BTN) != 0) {
state.releaseButton(MouseEvent.BUTTON_LEFT);
}
if ((buttons & MOUSE_MIDDLE_BTN) != 0) {
state.releaseButton(MouseEvent.BUTTON_OTHER);
}
if ((buttons & MOUSE_RIGHT_BTN) != 0) {
state.releaseButton(MouseEvent.BUTTON_RIGHT);
}
MouseInput.getInstance().setState(state, false);
});
}
@Override
protected void _mouseWheel(int wheelAmt) {
Platform.runLater(() -> {
MouseState state = new MouseState();
MouseInput mouse = MouseInput.getInstance();
mouse.getState(state);
int direction = wheelAmt < 0
? MouseState.WHEEL_DOWN
: MouseState.WHEEL_UP;
for (int i = 0; i < Math.abs(wheelAmt); i++) {
state.setWheel(direction);
mouse.setState(state, false);
state.setWheel(MouseState.WHEEL_NONE);
mouse.setState(state, false);
}
});
}
@Override
protected int _getMouseX() {
MouseState state = new MouseState();
MouseInput.getInstance().getState(state);
return state.getX();
}
@Override
protected int _getMouseY() {
MouseState state = new MouseState();
MouseInput.getInstance().getState(state);
return state.getY();
}
@Override
protected int _getPixelColor(int x, int y) {
NativeScreen screen = NativePlatformFactory.getNativePlatform().getScreen();
final int byteDepth = screen.getDepth() >>> 3;
final int bwidth = screen.getWidth();
final int bheight = screen.getHeight();
if (x < 0 || x > bwidth || y < 0 || y > bheight) {
return 0;
}
synchronized (NativeScreen.framebufferSwapLock) {
ByteBuffer buffer = screen.getScreenCapture();
if (byteDepth == 2) {
ShortBuffer shortbuf = buffer.asShortBuffer();
int v = shortbuf.get((y * bwidth) + x);
int red = (int) ((v & 0xF800) >> 11) << 3;
int green = (int) ((v & 0x7E0) >> 5) << 2;
int blue = (int) (v & 0x1F) << 3;
int p = (0xff000000
| (red << 16)
| (green << 8)
| blue);
return p;
} else if (byteDepth >= 4) {
IntBuffer intbuf = buffer.asIntBuffer();
return intbuf.get((y * bwidth) + x);
} else {
throw new RuntimeException("Unknown bit depth");
}
}
}
@Override
protected Pixels _getScreenCapture(int x, int y, int width, int height,
boolean isHiDPI) {
NativeScreen screen = NativePlatformFactory.getNativePlatform().getScreen();
final int byteDepth = screen.getDepth() >>> 3;
final int bwidth = screen.getWidth();
final int bheight = screen.getHeight();
IntBuffer ret = null;
synchronized (NativeScreen.framebufferSwapLock) {
ByteBuffer buffer = screen.getScreenCapture();
if (x == 0 && y == 0
&& width == screen.getWidth() && height == screen.getHeight()
&& byteDepth == 4) {
return new MonoclePixels(width, height, buffer.asIntBuffer());
} else {
int size = width * height;
ret = IntBuffer.allocate(size);
ShortBuffer shortbuf = null;
IntBuffer intbuf = null;
if (byteDepth == 2) {
shortbuf = buffer.asShortBuffer();
} else if (byteDepth >= 4) {
intbuf = buffer.asIntBuffer();
} else {
throw new RuntimeException("Unknown bit depth");
}
// create a subset of the capture in the return buffer
int row, col;
for (row = y; row < y + height; row++) {
// stepping through one row at a time.
int bufferRowStart = row * bwidth; // first in the screen row
int retRowStart = (row - y) * width; // first in return row
ret.position(retRowStart);
if ((row < 0) || (row >= bheight)) {
// off the top or bottom of the window
for (col = 0; col < width; col++) {
ret.put(0xff000000); //black
}
} else {
// in the y body
// if off the edge, left
for (col = x; col < 0; col++) {
ret.put(0xff000000); //black
}
for (; col < x + width && col < bwidth; col++) {
// get our color from the bytebuffer
if (byteDepth == 4) {
ret.put(intbuf.get(bufferRowStart + col));
} else if (byteDepth == 2) {
int v = shortbuf.get(bufferRowStart + col);
int red = (int) ((v & 0xF800) >> 11) << 3;
int green = (int) ((v & 0x7E0) >> 5) << 2;
int blue = (int) (v & 0x1F) << 3;
int p = (0xff000000 |
(red << 16) |
(green << 8) |
blue);
ret.put(p);
}
}
// if off the edge right
for (; col < x + width; col++) {
ret.put(0xff000000); //black
}
}
}
}
ret.clear();
return new MonoclePixels(width, height, ret);
}
}
}
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