com.sun.glass.ui.monocle

Class FBDevScreen

java.lang.Object

com.sun.glass.ui.monocle.FBDevScreen

All Implemented Interfaces:

NativeScreen

Direct Known Subclasses:

DispmanScreen, OMAPScreen

class FBDevScreen
extends java.lang.Object
implements NativeScreen

Field Summary

Fields

Modifier and Type	Field and Description
private int	consoleCursorBlink
private Framebuffer	fb
private java.nio.channels.FileChannel	fbdev
private java.lang.String	fbDevPath
private boolean	isShutdown
private LinuxFrameBuffer	linuxFB
private java.nio.ByteBuffer	mappedFB
private int	nativeFormat
private long	nativeHandle

Fields inherited from interface com.sun.glass.ui.monocle.NativeScreen

framebufferSwapLock

Constructor Summary

Constructors

Constructor and Description
FBDevScreen()

Method Summary

Modifier and Type	Method and Description
private void	closeFBDev()
private void	forEachPixelOffset(java.util.function.IntConsumer c)
int	getDepth() Returns the bit depth of the screen/
int	getDPI() Returns the number of pixels per inch in the screen.
private Framebuffer	getFramebuffer()
int	getHeight() Returns the pixel height of the screen.
int	getNativeFormat() Returns the native format of the screen, as a constant from the Pixels class.
long	getNativeHandle() Returns a native handle for the screen.
float	getScale() Return the scale factor between the physical pixels and the logical pixels e.g.
java.nio.ByteBuffer	getScreenCapture() Returns a read-only ByteBuffer in the native pixel format containing the screen contents.
int	getWidth() Returns the pixel width of the screen.
private boolean	isFBDevOpen()
private void	openFBDev()
void	shutdown() Called during JavaFX shutdown to release the screen.
void	swapBuffers() Called on the JavaFX application thread when pixel data for all windows has been uploaded.
void	uploadPixels(java.nio.Buffer b, int pX, int pY, int pWidth, int pHeight, float alpha) Uploads a pixel buffer to the screen.
private void	writeBuffer()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

nativeFormat

private int nativeFormat

nativeHandle

private long nativeHandle

fbdev

private java.nio.channels.FileChannel fbdev

mappedFB

private java.nio.ByteBuffer mappedFB

isShutdown

private boolean isShutdown

consoleCursorBlink

private int consoleCursorBlink

fb

private Framebuffer fb

linuxFB

private LinuxFrameBuffer linuxFB

fbDevPath

private final java.lang.String fbDevPath

Constructor Detail

FBDevScreen

FBDevScreen()

Method Detail

getDepth

public int getDepth()

Description copied from interface: NativeScreen

Returns the bit depth of the screen/

Specified by:

getDepth in interface NativeScreen

getNativeFormat

public int getNativeFormat()

Description copied from interface: NativeScreen

Returns the native format of the screen, as a constant from the Pixels class.

Specified by:

getNativeFormat in interface NativeScreen

getWidth

public int getWidth()

Description copied from interface: NativeScreen

Returns the pixel width of the screen.

Specified by:

getWidth in interface NativeScreen

getHeight

public int getHeight()

Description copied from interface: NativeScreen

Returns the pixel height of the screen.

Specified by:

getHeight in interface NativeScreen

getNativeHandle

public long getNativeHandle()

Description copied from interface: NativeScreen

Returns a native handle for the screen. The handle is platform-specific.

Specified by:

getNativeHandle in interface NativeScreen

getScale

public float getScale()

Description copied from interface: NativeScreen

Return the scale factor between the physical pixels and the logical pixels e.g. hdpi = 1.5, xhdpi = 2.0

Specified by:

getScale in interface NativeScreen

getDPI

public int getDPI()

Description copied from interface: NativeScreen

Returns the number of pixels per inch in the screen.

Specified by:

getDPI in interface NativeScreen

isFBDevOpen

private boolean isFBDevOpen()

openFBDev

private void openFBDev()
                throws java.io.IOException

Throws:

java.io.IOException

closeFBDev

private void closeFBDev()

getFramebuffer

private Framebuffer getFramebuffer()

forEachPixelOffset

private void forEachPixelOffset(java.util.function.IntConsumer c)

shutdown

public void shutdown()

Description copied from interface: NativeScreen

Called during JavaFX shutdown to release the screen. Called only once.

Specified by:

shutdown in interface NativeScreen

uploadPixels

public void uploadPixels(java.nio.Buffer b,
                         int pX,
                         int pY,
                         int pWidth,
                         int pHeight,
                         float alpha)

Description copied from interface: NativeScreen

Uploads a pixel buffer to the screen. Called on the JavaFX application thread.

Specified by:

uploadPixels in interface NativeScreen

Parameters:

b - Pixel data, in BYTE_BGRA_PRE format. The byte stride of the data is equal to width * 4.

pX - The X offset of the pixel data on the screen

pY - The Y offset of the pixel data on the screen

pWidth - The pixel width of the data

pHeight - The pixel height of the data

alpha - The alpha level to use to compose the data over existing pixels

swapBuffers

public void swapBuffers()

Description copied from interface: NativeScreen

Called on the JavaFX application thread when pixel data for all windows has been uploaded.

Specified by:

swapBuffers in interface NativeScreen

writeBuffer

private void writeBuffer()
                  throws java.io.IOException

Throws:

java.io.IOException

getScreenCapture

public java.nio.ByteBuffer getScreenCapture()

Description copied from interface: NativeScreen

Returns a read-only ByteBuffer in the native pixel format containing the screen contents.

Specified by:

getScreenCapture in interface NativeScreen

Returns:

ByteBuffer a read-only ByteBuffer containing the screen contents