com.sun.glass.ui.monocle.AndroidScreen Maven / Gradle / Ivy
/*
* Copyright (c) 2013, 2022, 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.ui.Pixels;
import java.nio.Buffer;
import java.nio.ByteBuffer;
public class AndroidScreen implements NativeScreen {
private float density = -1;
@Override
public int getDepth() {
return 24;
}
/**
* Returns the native format of the screen, as a constant from the Pixels
* class.
*/
@Override
public int getNativeFormat() {
return Pixels.Format.BYTE_ARGB;
}
/**
* Returns the pixel width of the screen.
*/
@Override
public int getWidth() {
int answer = (int)(_getWidth()/getScale());
return answer;
}
/**
* Returns the pixel height of the screen.
*/
@Override
public int getHeight() {
return (int)(_getHeight()/getScale());
}
/**
* Returns the number of pixels per inch in the screen.
*/
@Override
public int getDPI() {
return 100;
}
@Override
public float getScale () {
if (density < 0) {
density = _getDensity();
}
return density;
}
/**
* Returns a native handle for the screen. The handle is platform-specific.
*/
@Override
public long getNativeHandle() {
long answer = _getNativeHandle();
return answer;
}
/**
* Called during JavaFX shutdown to release the screen. Called only once.
*/
@Override
public void shutdown() {
_shutdown();
}
/** Uploads a pixel buffer to the screen. Called on the JavaFX application thread.
*
* @param b Pixel data, in BYTE_BGRA_PRE format. The byte stride of the
* data is equal to width * 4.
* @param x The X offset of the pixel data on the screen
* @param y The Y offset of the pixel data on the screen
* @param width The pixel width of the data
* @param height The pixel height of the data
* @param alpha The alpha level to use to compose the data over existing
* pixels
*/
@Override
public void uploadPixels(Buffer b,
int x, int y, int width, int height, float alpha) {
_uploadPixels (b, x, y, width, height, alpha);
}
/**
* Called on the JavaFX application thread when pixel data for all windows
* has been uploaded.
*/
@Override
public void swapBuffers() {
_swapBuffers();
}
/**
* Returns a read-only ByteBuffer in the native pixel format containing the screen contents.
* @return ByteBuffer a read-only ByteBuffer containing the screen contents
*/
@Override
public ByteBuffer getScreenCapture() {
return _getScreenCapture();
}
/**
* An Object to lock against when swapping screen buffers.
*/
public static final Object framebufferSwapLock = new Object();
native int _getWidth();
native int _getHeight();
native float _getDensity();
native long _getNativeHandle();
native void _shutdown();
native void _uploadPixels(Buffer b,
int x, int y, int width, int height, float alpha);
native void _swapBuffers();
native ByteBuffer _getScreenCapture();
}