- All Implemented Interfaces:
Cloneable
- Since:
- 1.4
- See Also:
-
Nested Class Summary
Modifier and TypeClassDescriptionstatic final class
A type-safe enumeration of the possible back buffer contents after page-flipping -
Constructor Summary
ConstructorDescriptionBufferCapabilities
(ImageCapabilities frontCaps, ImageCapabilities backCaps, BufferCapabilities.FlipContents flipContents) Creates a new object for specifying buffering capabilities -
Method Summary
Modifier and TypeMethodDescriptionclone()
Creates and returns a copy of this object.boolean
boolean
boolean
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Constructor Details
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BufferCapabilities
public BufferCapabilities(ImageCapabilities frontCaps, ImageCapabilities backCaps, BufferCapabilities.FlipContents flipContents) Creates a new object for specifying buffering capabilities- Parameters:
frontCaps
- the capabilities of the front buffer; cannot benull
backCaps
- the capabilities of the back and intermediate buffers; cannot benull
flipContents
- the contents of the back buffer after page-flipping,null
if page flipping is not used (implies blitting)- Throws:
IllegalArgumentException
- if frontCaps or backCaps arenull
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Method Details
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getFrontBufferCapabilities
- Returns:
- the image capabilities of the front (displayed) buffer
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getBackBufferCapabilities
- Returns:
- the image capabilities of all back buffers (intermediate buffers are considered back buffers)
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isPageFlipping
public boolean isPageFlipping()- Returns:
- whether or not the buffer strategy uses page flipping; a set of
buffers that uses page flipping
can swap the contents internally between the front buffer and one or
more back buffers by switching the video pointer (or by copying memory
internally). A non-flipping set of
buffers uses blitting to copy the contents from one buffer to
another; when this is the case,
getFlipContents
returnsnull
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getFlipContents
- Returns:
- the resulting contents of the back buffer after page-flipping.
This value is
null
when theisPageFlipping
returnsfalse
, implying blitting. It can be one ofFlipContents.UNDEFINED
(the assumed default),FlipContents.BACKGROUND
,FlipContents.PRIOR
, orFlipContents.COPIED
. - See Also:
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isFullScreenRequired
public boolean isFullScreenRequired()- Returns:
- whether page flipping is only available in full-screen mode. If this
is
true
, full-screen exclusive mode is required for page-flipping. - See Also:
-
isMultiBufferAvailable
public boolean isMultiBufferAvailable()- Returns:
- whether or not page flipping can be performed using more than two buffers (one or more intermediate buffers as well as the front and back buffer).
- See Also:
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clone
Description copied from class:Object
Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any objectx
, the expression:x.clone() != x
x.clone().getClass() == x.getClass()
true
, but these are not absolute requirements. While it is typically the case that:x.clone().equals(x)
true
, this is not an absolute requirement.By convention, the returned object should be obtained by calling
super.clone
. If a class and all of its superclasses (exceptObject
) obey this convention, it will be the case thatx.clone().getClass() == x.getClass()
.By convention, the object returned by this method should be independent of this object (which is being cloned). To achieve this independence, it may be necessary to modify one or more fields of the object returned by
super.clone
before returning it. Typically, this means copying any mutable objects that comprise the internal "deep structure" of the object being cloned and replacing the references to these objects with references to the copies. If a class contains only primitive fields or references to immutable objects, then it is usually the case that no fields in the object returned bysuper.clone
need to be modified.
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