class HeadlessScreen extends java.lang.Object implements NativeScreen
| Modifier and Type | Field and Description |
|---|---|
protected int |
depth |
protected Framebuffer |
fb |
protected int |
height |
protected int |
width |
framebufferSwapLock| Modifier | Constructor and Description |
|---|---|
(package private) |
HeadlessScreen() |
protected |
HeadlessScreen(int defaultWidth,
int defaultHeight,
int defaultDepth) |
| Modifier and Type | Method and Description |
|---|---|
int |
getDepth()
Returns the bit depth of the screen/
|
int |
getDPI()
Returns the number of pixels per inch in the screen.
|
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.
|
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 x,
int y,
int width,
int height,
float alpha)
Uploads a pixel buffer to the screen.
|
protected int depth
protected int width
protected int height
protected Framebuffer fb
HeadlessScreen()
protected HeadlessScreen(int defaultWidth,
int defaultHeight,
int defaultDepth)
public int getDepth()
NativeScreengetDepth in interface NativeScreenpublic int getNativeFormat()
NativeScreengetNativeFormat in interface NativeScreenpublic int getWidth()
NativeScreengetWidth in interface NativeScreenpublic int getHeight()
NativeScreengetHeight in interface NativeScreenpublic float getScale()
NativeScreengetScale in interface NativeScreenpublic long getNativeHandle()
NativeScreengetNativeHandle in interface NativeScreenpublic int getDPI()
NativeScreengetDPI in interface NativeScreenpublic void shutdown()
NativeScreenshutdown in interface NativeScreenpublic void uploadPixels(java.nio.Buffer b,
int x,
int y,
int width,
int height,
float alpha)
NativeScreenuploadPixels in interface NativeScreenb - Pixel data, in BYTE_BGRA_PRE format. The byte stride of the
data is equal to width * 4.x - The X offset of the pixel data on the screeny - The Y offset of the pixel data on the screenwidth - The pixel width of the dataheight - The pixel height of the dataalpha - The alpha level to use to compose the data over existing
pixelspublic void swapBuffers()
NativeScreenswapBuffers in interface NativeScreenpublic java.nio.ByteBuffer getScreenCapture()
NativeScreengetScreenCapture in interface NativeScreen